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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/arrow_array.rs`."><title>arrow_array.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>arrow_array.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>arrow::array::{ArrayRef, AsArray};
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>arrow::datatypes::{
<a href=#17 id=17 data-nosnippet>17</a> DataType, DurationMicrosecondType, DurationMillisecondType, DurationNanosecondType,
<a href=#18 id=18 data-nosnippet>18</a> DurationSecondType, Int8Type, Int16Type, Int32Type, Int64Type, Time32MillisecondType,
<a href=#19 id=19 data-nosnippet>19</a> Time32SecondType, Time64MicrosecondType, Time64NanosecondType, TimeUnit,
<a href=#20 id=20 data-nosnippet>20</a> TimestampMicrosecondType, TimestampMillisecondType, TimestampNanosecondType,
<a href=#21 id=21 data-nosnippet>21</a> TimestampSecondType, UInt8Type, UInt16Type, UInt32Type, UInt64Type,
<a href=#22 id=22 data-nosnippet>22</a>};
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>arrow::downcast_dictionary_array;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>arrow_array::Array;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span>common_time::time::Time;
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span>common_time::{Duration, Timestamp};
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">pub type </span>BinaryArray = arrow::array::BinaryArray;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">pub type </span>LargeBinaryArray = arrow::array::LargeBinaryArray;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">pub type </span>MutableBinaryArray = arrow::array::BinaryBuilder;
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">pub type </span>BinaryViewArray = arrow::array::BinaryViewArray;
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">pub type </span>MutableBinaryViewArray = arrow::array::BinaryViewBuilder;
<a href=#33 id=33 data-nosnippet>33</a><span class="kw">pub type </span>StringArray = arrow::array::StringArray;
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">pub type </span>MutableStringArray = arrow::array::StringBuilder;
<a href=#35 id=35 data-nosnippet>35</a><span class="kw">pub type </span>LargeStringArray = arrow::array::LargeStringArray;
<a href=#36 id=36 data-nosnippet>36</a><span class="kw">pub type </span>MutableLargeStringArray = arrow::array::LargeStringBuilder;
<a href=#37 id=37 data-nosnippet>37</a><span class="kw">pub type </span>StringViewArray = arrow::array::StringViewArray;
<a href=#38 id=38 data-nosnippet>38</a><span class="kw">pub type </span>MutableStringViewArray = arrow::array::StringViewBuilder;
<a href=#39 id=39 data-nosnippet>39</a>
<a href=#40 id=40 data-nosnippet>40</a><span class="doccomment">/// Get the [Timestamp] value at index `i` of the timestamp array.
<a href=#41 id=41 data-nosnippet>41</a>///
<a href=#42 id=42 data-nosnippet>42</a>/// Note: This method does not check for nulls and the value is arbitrary
<a href=#43 id=43 data-nosnippet>43</a>/// if [`is_null`](arrow::array::Array::is_null) returns true for the index.
<a href=#44 id=44 data-nosnippet>44</a>///
<a href=#45 id=45 data-nosnippet>45</a>/// # Panics
<a href=#46 id=46 data-nosnippet>46</a>/// 1. if index `i` is out of bounds;
<a href=#47 id=47 data-nosnippet>47</a>/// 2. or the array is not timestamp type.
<a href=#48 id=48 data-nosnippet>48</a></span><span class="kw">pub fn </span>timestamp_array_value(array: <span class="kw-2">&amp;</span>ArrayRef, i: usize) -&gt; Timestamp {
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">let </span>DataType::Timestamp(time_unit, <span class="kw">_</span>) = <span class="kw-2">&amp;</span>array.data_type() <span class="kw">else </span>{
<a href=#50 id=50 data-nosnippet>50</a> <span class="macro">unreachable!</span>()
<a href=#51 id=51 data-nosnippet>51</a> };
<a href=#52 id=52 data-nosnippet>52</a> <span class="kw">let </span>v = <span class="kw">match </span>time_unit {
<a href=#53 id=53 data-nosnippet>53</a> TimeUnit::Second =&gt; {
<a href=#54 id=54 data-nosnippet>54</a> <span class="kw">let </span>array = array.as_primitive::&lt;TimestampSecondType&gt;();
<a href=#55 id=55 data-nosnippet>55</a> array.value(i)
<a href=#56 id=56 data-nosnippet>56</a> }
<a href=#57 id=57 data-nosnippet>57</a> TimeUnit::Millisecond =&gt; {
<a href=#58 id=58 data-nosnippet>58</a> <span class="kw">let </span>array = array.as_primitive::&lt;TimestampMillisecondType&gt;();
<a href=#59 id=59 data-nosnippet>59</a> array.value(i)
<a href=#60 id=60 data-nosnippet>60</a> }
<a href=#61 id=61 data-nosnippet>61</a> TimeUnit::Microsecond =&gt; {
<a href=#62 id=62 data-nosnippet>62</a> <span class="kw">let </span>array = array.as_primitive::&lt;TimestampMicrosecondType&gt;();
<a href=#63 id=63 data-nosnippet>63</a> array.value(i)
<a href=#64 id=64 data-nosnippet>64</a> }
<a href=#65 id=65 data-nosnippet>65</a> TimeUnit::Nanosecond =&gt; {
<a href=#66 id=66 data-nosnippet>66</a> <span class="kw">let </span>array = array.as_primitive::&lt;TimestampNanosecondType&gt;();
<a href=#67 id=67 data-nosnippet>67</a> array.value(i)
<a href=#68 id=68 data-nosnippet>68</a> }
<a href=#69 id=69 data-nosnippet>69</a> };
<a href=#70 id=70 data-nosnippet>70</a> Timestamp::new(v, time_unit.into())
<a href=#71 id=71 data-nosnippet>71</a>}
<a href=#72 id=72 data-nosnippet>72</a>
<a href=#73 id=73 data-nosnippet>73</a><span class="doccomment">/// Get the [Time] value at index `i` of the time array.
<a href=#74 id=74 data-nosnippet>74</a>///
<a href=#75 id=75 data-nosnippet>75</a>/// Note: This method does not check for nulls and the value is arbitrary
<a href=#76 id=76 data-nosnippet>76</a>/// if [`is_null`](arrow::array::Array::is_null) returns true for the index.
<a href=#77 id=77 data-nosnippet>77</a>///
<a href=#78 id=78 data-nosnippet>78</a>/// # Panics
<a href=#79 id=79 data-nosnippet>79</a>/// 1. if index `i` is out of bounds;
<a href=#80 id=80 data-nosnippet>80</a>/// 2. or the array is not `Time32` or `Time64` type.
<a href=#81 id=81 data-nosnippet>81</a></span><span class="kw">pub fn </span>time_array_value(array: <span class="kw-2">&amp;</span>ArrayRef, i: usize) -&gt; Time {
<a href=#82 id=82 data-nosnippet>82</a> <span class="kw">match </span>array.data_type() {
<a href=#83 id=83 data-nosnippet>83</a> DataType::Time32(time_unit) | DataType::Time64(time_unit) =&gt; <span class="kw">match </span>time_unit {
<a href=#84 id=84 data-nosnippet>84</a> TimeUnit::Second =&gt; {
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">let </span>array = array.as_primitive::&lt;Time32SecondType&gt;();
<a href=#86 id=86 data-nosnippet>86</a> Time::new_second(array.value(i) <span class="kw">as </span>i64)
<a href=#87 id=87 data-nosnippet>87</a> }
<a href=#88 id=88 data-nosnippet>88</a> TimeUnit::Millisecond =&gt; {
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">let </span>array = array.as_primitive::&lt;Time32MillisecondType&gt;();
<a href=#90 id=90 data-nosnippet>90</a> Time::new_millisecond(array.value(i) <span class="kw">as </span>i64)
<a href=#91 id=91 data-nosnippet>91</a> }
<a href=#92 id=92 data-nosnippet>92</a> TimeUnit::Microsecond =&gt; {
<a href=#93 id=93 data-nosnippet>93</a> <span class="kw">let </span>array = array.as_primitive::&lt;Time64MicrosecondType&gt;();
<a href=#94 id=94 data-nosnippet>94</a> Time::new_microsecond(array.value(i))
<a href=#95 id=95 data-nosnippet>95</a> }
<a href=#96 id=96 data-nosnippet>96</a> TimeUnit::Nanosecond =&gt; {
<a href=#97 id=97 data-nosnippet>97</a> <span class="kw">let </span>array = array.as_primitive::&lt;Time64NanosecondType&gt;();
<a href=#98 id=98 data-nosnippet>98</a> Time::new_nanosecond(array.value(i))
<a href=#99 id=99 data-nosnippet>99</a> }
<a href=#100 id=100 data-nosnippet>100</a> },
<a href=#101 id=101 data-nosnippet>101</a> <span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(),
<a href=#102 id=102 data-nosnippet>102</a> }
<a href=#103 id=103 data-nosnippet>103</a>}
<a href=#104 id=104 data-nosnippet>104</a>
<a href=#105 id=105 data-nosnippet>105</a><span class="doccomment">/// Get the [Duration] value at index `i` of the duration array.
<a href=#106 id=106 data-nosnippet>106</a>///
<a href=#107 id=107 data-nosnippet>107</a>/// Note: This method does not check for nulls and the value is arbitrary
<a href=#108 id=108 data-nosnippet>108</a>/// if [`is_null`](arrow::array::Array::is_null) returns true for the index.
<a href=#109 id=109 data-nosnippet>109</a>///
<a href=#110 id=110 data-nosnippet>110</a>/// # Panics
<a href=#111 id=111 data-nosnippet>111</a>/// 1. if index `i` is out of bounds;
<a href=#112 id=112 data-nosnippet>112</a>/// 2. or the array is not duration type.
<a href=#113 id=113 data-nosnippet>113</a></span><span class="kw">pub fn </span>duration_array_value(array: <span class="kw-2">&amp;</span>ArrayRef, i: usize) -&gt; Duration {
<a href=#114 id=114 data-nosnippet>114</a> <span class="kw">let </span>DataType::Duration(time_unit) = array.data_type() <span class="kw">else </span>{
<a href=#115 id=115 data-nosnippet>115</a> <span class="macro">unreachable!</span>();
<a href=#116 id=116 data-nosnippet>116</a> };
<a href=#117 id=117 data-nosnippet>117</a> <span class="kw">let </span>v = <span class="kw">match </span>time_unit {
<a href=#118 id=118 data-nosnippet>118</a> TimeUnit::Second =&gt; {
<a href=#119 id=119 data-nosnippet>119</a> <span class="kw">let </span>array = array.as_primitive::&lt;DurationSecondType&gt;();
<a href=#120 id=120 data-nosnippet>120</a> array.value(i)
<a href=#121 id=121 data-nosnippet>121</a> }
<a href=#122 id=122 data-nosnippet>122</a> TimeUnit::Millisecond =&gt; {
<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">let </span>array = array.as_primitive::&lt;DurationMillisecondType&gt;();
<a href=#124 id=124 data-nosnippet>124</a> array.value(i)
<a href=#125 id=125 data-nosnippet>125</a> }
<a href=#126 id=126 data-nosnippet>126</a> TimeUnit::Microsecond =&gt; {
<a href=#127 id=127 data-nosnippet>127</a> <span class="kw">let </span>array = array.as_primitive::&lt;DurationMicrosecondType&gt;();
<a href=#128 id=128 data-nosnippet>128</a> array.value(i)
<a href=#129 id=129 data-nosnippet>129</a> }
<a href=#130 id=130 data-nosnippet>130</a> TimeUnit::Nanosecond =&gt; {
<a href=#131 id=131 data-nosnippet>131</a> <span class="kw">let </span>array = array.as_primitive::&lt;DurationNanosecondType&gt;();
<a href=#132 id=132 data-nosnippet>132</a> array.value(i)
<a href=#133 id=133 data-nosnippet>133</a> }
<a href=#134 id=134 data-nosnippet>134</a> };
<a href=#135 id=135 data-nosnippet>135</a> Duration::new(v, time_unit.into())
<a href=#136 id=136 data-nosnippet>136</a>}
<a href=#137 id=137 data-nosnippet>137</a>
<a href=#138 id=138 data-nosnippet>138</a><span class="doccomment">/// Get the string value at index `i` for string or dictionary-encoded string arrays.
<a href=#139 id=139 data-nosnippet>139</a>///
<a href=#140 id=140 data-nosnippet>140</a>/// Returns `None` when the array type is not a string type or the value is null.
<a href=#141 id=141 data-nosnippet>141</a>///
<a href=#142 id=142 data-nosnippet>142</a>/// # Panics
<a href=#143 id=143 data-nosnippet>143</a>///
<a href=#144 id=144 data-nosnippet>144</a>/// If index `i` is out of bounds.
<a href=#145 id=145 data-nosnippet>145</a></span><span class="kw">pub fn </span>string_array_value_at_index(array: <span class="kw-2">&amp;</span>ArrayRef, i: usize) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>str&gt; {
<a href=#146 id=146 data-nosnippet>146</a> <span class="kw">match </span>array.data_type() {
<a href=#147 id=147 data-nosnippet>147</a> DataType::Utf8 =&gt; {
<a href=#148 id=148 data-nosnippet>148</a> <span class="kw">let </span>array = array.as_string::&lt;i32&gt;();
<a href=#149 id=149 data-nosnippet>149</a> array.is_valid(i).then(|| array.value(i))
<a href=#150 id=150 data-nosnippet>150</a> }
<a href=#151 id=151 data-nosnippet>151</a> DataType::LargeUtf8 =&gt; {
<a href=#152 id=152 data-nosnippet>152</a> <span class="kw">let </span>array = array.as_string::&lt;i64&gt;();
<a href=#153 id=153 data-nosnippet>153</a> array.is_valid(i).then(|| array.value(i))
<a href=#154 id=154 data-nosnippet>154</a> }
<a href=#155 id=155 data-nosnippet>155</a> DataType::Utf8View =&gt; {
<a href=#156 id=156 data-nosnippet>156</a> <span class="kw">let </span>array = array.as_string_view();
<a href=#157 id=157 data-nosnippet>157</a> array.is_valid(i).then(|| array.value(i))
<a href=#158 id=158 data-nosnippet>158</a> }
<a href=#159 id=159 data-nosnippet>159</a> DataType::Dictionary(key_type, value_type)
<a href=#160 id=160 data-nosnippet>160</a> <span class="kw">if </span>key_type.is_integer() &amp;&amp; value_type.is_string() =&gt;
<a href=#161 id=161 data-nosnippet>161</a> {
<a href=#162 id=162 data-nosnippet>162</a> <span class="macro">downcast_dictionary_array!</span> {
<a href=#163 id=163 data-nosnippet>163</a> array =&gt; string_array_value_at_index(array.values(), array.key(i)<span class="question-mark">?</span>),
<a href=#164 id=164 data-nosnippet>164</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#165 id=165 data-nosnippet>165</a> }
<a href=#166 id=166 data-nosnippet>166</a> }
<a href=#167 id=167 data-nosnippet>167</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#168 id=168 data-nosnippet>168</a> }
<a href=#169 id=169 data-nosnippet>169</a>}
<a href=#170 id=170 data-nosnippet>170</a>
<a href=#171 id=171 data-nosnippet>171</a><span class="doccomment">/// Check whether the string value at index `i` is null for string or
<a href=#172 id=172 data-nosnippet>172</a>/// dictionary-encoded string arrays.
<a href=#173 id=173 data-nosnippet>173</a>///
<a href=#174 id=174 data-nosnippet>174</a>/// Returns `true` when the value is null or the array type is not a string
<a href=#175 id=175 data-nosnippet>175</a>/// type, which corresponds to [`string_array_value_at_index`] returning `None`.
<a href=#176 id=176 data-nosnippet>176</a>///
<a href=#177 id=177 data-nosnippet>177</a>/// # Panics
<a href=#178 id=178 data-nosnippet>178</a>///
<a href=#179 id=179 data-nosnippet>179</a>/// If index `i` is out of bounds.
<a href=#180 id=180 data-nosnippet>180</a></span><span class="kw">pub fn </span>is_string_null_at(array: <span class="kw-2">&amp;</span>ArrayRef, i: usize) -&gt; bool {
<a href=#181 id=181 data-nosnippet>181</a> <span class="kw">match </span>array.data_type() {
<a href=#182 id=182 data-nosnippet>182</a> DataType::Utf8 =&gt; {
<a href=#183 id=183 data-nosnippet>183</a> <span class="kw">let </span>array = array.as_string::&lt;i32&gt;();
<a href=#184 id=184 data-nosnippet>184</a> !array.is_valid(i)
<a href=#185 id=185 data-nosnippet>185</a> }
<a href=#186 id=186 data-nosnippet>186</a> DataType::LargeUtf8 =&gt; {
<a href=#187 id=187 data-nosnippet>187</a> <span class="kw">let </span>array = array.as_string::&lt;i64&gt;();
<a href=#188 id=188 data-nosnippet>188</a> !array.is_valid(i)
<a href=#189 id=189 data-nosnippet>189</a> }
<a href=#190 id=190 data-nosnippet>190</a> DataType::Utf8View =&gt; {
<a href=#191 id=191 data-nosnippet>191</a> <span class="kw">let </span>array = array.as_string_view();
<a href=#192 id=192 data-nosnippet>192</a> !array.is_valid(i)
<a href=#193 id=193 data-nosnippet>193</a> }
<a href=#194 id=194 data-nosnippet>194</a> DataType::Dictionary(key_type, value_type)
<a href=#195 id=195 data-nosnippet>195</a> <span class="kw">if </span>key_type.is_integer() &amp;&amp; value_type.is_string() =&gt;
<a href=#196 id=196 data-nosnippet>196</a> {
<a href=#197 id=197 data-nosnippet>197</a> <span class="macro">downcast_dictionary_array!</span> {
<a href=#198 id=198 data-nosnippet>198</a> array =&gt; array
<a href=#199 id=199 data-nosnippet>199</a> .key(i)
<a href=#200 id=200 data-nosnippet>200</a> .is_none_or(|key| is_string_null_at(array.values(), key)),
<a href=#201 id=201 data-nosnippet>201</a> <span class="kw">_ </span>=&gt; <span class="bool-val">true</span>,
<a href=#202 id=202 data-nosnippet>202</a> }
<a href=#203 id=203 data-nosnippet>203</a> }
<a href=#204 id=204 data-nosnippet>204</a> <span class="kw">_ </span>=&gt; <span class="bool-val">true</span>,
<a href=#205 id=205 data-nosnippet>205</a> }
<a href=#206 id=206 data-nosnippet>206</a>}
<a href=#207 id=207 data-nosnippet>207</a>
<a href=#208 id=208 data-nosnippet>208</a><span class="doccomment">/// Get the string value at index `i` for `Utf8`, `LargeUtf8`, or `Utf8View` arrays.
<a href=#209 id=209 data-nosnippet>209</a>///
<a href=#210 id=210 data-nosnippet>210</a>/// Note: This method does not check for nulls and the value is arbitrary
<a href=#211 id=211 data-nosnippet>211</a>/// if [`is_null`](arrow::array::Array::is_null) returns true for the index.
<a href=#212 id=212 data-nosnippet>212</a>///
<a href=#213 id=213 data-nosnippet>213</a>/// # Panics
<a href=#214 id=214 data-nosnippet>214</a>/// 1. if index `i` is out of bounds;
<a href=#215 id=215 data-nosnippet>215</a>/// 2. or the array is not a string type.
<a href=#216 id=216 data-nosnippet>216</a></span><span class="kw">pub fn </span>string_array_value(array: <span class="kw-2">&amp;</span>ArrayRef, i: usize) -&gt; <span class="kw-2">&amp;</span>str {
<a href=#217 id=217 data-nosnippet>217</a> <span class="kw">match </span>array.data_type() {
<a href=#218 id=218 data-nosnippet>218</a> DataType::Utf8 =&gt; array.as_string::&lt;i32&gt;().value(i),
<a href=#219 id=219 data-nosnippet>219</a> DataType::LargeUtf8 =&gt; array.as_string::&lt;i64&gt;().value(i),
<a href=#220 id=220 data-nosnippet>220</a> DataType::Utf8View =&gt; array.as_string_view().value(i),
<a href=#221 id=221 data-nosnippet>221</a> <span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(),
<a href=#222 id=222 data-nosnippet>222</a> }
<a href=#223 id=223 data-nosnippet>223</a>}
<a href=#224 id=224 data-nosnippet>224</a>
<a href=#225 id=225 data-nosnippet>225</a><span class="doccomment">/// Get the binary value at index `i` for `Binary`, `LargeBinary`, or `BinaryView` arrays.
<a href=#226 id=226 data-nosnippet>226</a>///
<a href=#227 id=227 data-nosnippet>227</a>/// Note: This method does not check for nulls and the value is arbitrary
<a href=#228 id=228 data-nosnippet>228</a>/// if [`is_null`](arrow::array::Array::is_null) returns true for the index.
<a href=#229 id=229 data-nosnippet>229</a>///
<a href=#230 id=230 data-nosnippet>230</a>/// # Panics
<a href=#231 id=231 data-nosnippet>231</a>/// 1. if index `i` is out of bounds;
<a href=#232 id=232 data-nosnippet>232</a>/// 2. or the array is not a binary type.
<a href=#233 id=233 data-nosnippet>233</a></span><span class="kw">pub fn </span>binary_array_value(array: <span class="kw-2">&amp;</span>ArrayRef, i: usize) -&gt; <span class="kw-2">&amp;</span>[u8] {
<a href=#234 id=234 data-nosnippet>234</a> <span class="kw">match </span>array.data_type() {
<a href=#235 id=235 data-nosnippet>235</a> DataType::Binary =&gt; array.as_binary::&lt;i32&gt;().value(i),
<a href=#236 id=236 data-nosnippet>236</a> DataType::LargeBinary =&gt; array.as_binary::&lt;i64&gt;().value(i),
<a href=#237 id=237 data-nosnippet>237</a> DataType::BinaryView =&gt; array.as_binary_view().value(i),
<a href=#238 id=238 data-nosnippet>238</a> <span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(),
<a href=#239 id=239 data-nosnippet>239</a> }
<a href=#240 id=240 data-nosnippet>240</a>}
<a href=#241 id=241 data-nosnippet>241</a>
<a href=#242 id=242 data-nosnippet>242</a><span class="doccomment">/// Get the integer value (`i64`) at index `i` for any integer array.
<a href=#243 id=243 data-nosnippet>243</a>///
<a href=#244 id=244 data-nosnippet>244</a>/// Returns `None` when:
<a href=#245 id=245 data-nosnippet>245</a>///
<a href=#246 id=246 data-nosnippet>246</a>/// - the array type is not an integer type;
<a href=#247 id=247 data-nosnippet>247</a>/// - the value is larger than `i64::MAX`;
<a href=#248 id=248 data-nosnippet>248</a>/// - the value is null.
<a href=#249 id=249 data-nosnippet>249</a>///
<a href=#250 id=250 data-nosnippet>250</a>/// # Panics
<a href=#251 id=251 data-nosnippet>251</a>///
<a href=#252 id=252 data-nosnippet>252</a>/// If index `i` is out of bounds.
<a href=#253 id=253 data-nosnippet>253</a></span><span class="kw">pub fn </span>int_array_value_at_index(array: <span class="kw-2">&amp;</span>ArrayRef, i: usize) -&gt; <span class="prelude-ty">Option</span>&lt;i64&gt; {
<a href=#254 id=254 data-nosnippet>254</a> <span class="kw">match </span>array.data_type() {
<a href=#255 id=255 data-nosnippet>255</a> DataType::Int8 =&gt; {
<a href=#256 id=256 data-nosnippet>256</a> <span class="kw">let </span>array = array.as_primitive::&lt;Int8Type&gt;();
<a href=#257 id=257 data-nosnippet>257</a> array.is_valid(i).then(|| array.value(i) <span class="kw">as </span>i64)
<a href=#258 id=258 data-nosnippet>258</a> }
<a href=#259 id=259 data-nosnippet>259</a> DataType::Int16 =&gt; {
<a href=#260 id=260 data-nosnippet>260</a> <span class="kw">let </span>array = array.as_primitive::&lt;Int16Type&gt;();
<a href=#261 id=261 data-nosnippet>261</a> array.is_valid(i).then(|| array.value(i) <span class="kw">as </span>i64)
<a href=#262 id=262 data-nosnippet>262</a> }
<a href=#263 id=263 data-nosnippet>263</a> DataType::Int32 =&gt; {
<a href=#264 id=264 data-nosnippet>264</a> <span class="kw">let </span>array = array.as_primitive::&lt;Int32Type&gt;();
<a href=#265 id=265 data-nosnippet>265</a> array.is_valid(i).then(|| array.value(i) <span class="kw">as </span>i64)
<a href=#266 id=266 data-nosnippet>266</a> }
<a href=#267 id=267 data-nosnippet>267</a> DataType::Int64 =&gt; {
<a href=#268 id=268 data-nosnippet>268</a> <span class="kw">let </span>array = array.as_primitive::&lt;Int64Type&gt;();
<a href=#269 id=269 data-nosnippet>269</a> array.is_valid(i).then(|| array.value(i))
<a href=#270 id=270 data-nosnippet>270</a> }
<a href=#271 id=271 data-nosnippet>271</a> DataType::UInt8 =&gt; {
<a href=#272 id=272 data-nosnippet>272</a> <span class="kw">let </span>array = array.as_primitive::&lt;UInt8Type&gt;();
<a href=#273 id=273 data-nosnippet>273</a> array.is_valid(i).then(|| array.value(i) <span class="kw">as </span>i64)
<a href=#274 id=274 data-nosnippet>274</a> }
<a href=#275 id=275 data-nosnippet>275</a> DataType::UInt16 =&gt; {
<a href=#276 id=276 data-nosnippet>276</a> <span class="kw">let </span>array = array.as_primitive::&lt;UInt16Type&gt;();
<a href=#277 id=277 data-nosnippet>277</a> array.is_valid(i).then(|| array.value(i) <span class="kw">as </span>i64)
<a href=#278 id=278 data-nosnippet>278</a> }
<a href=#279 id=279 data-nosnippet>279</a> DataType::UInt32 =&gt; {
<a href=#280 id=280 data-nosnippet>280</a> <span class="kw">let </span>array = array.as_primitive::&lt;UInt32Type&gt;();
<a href=#281 id=281 data-nosnippet>281</a> array.is_valid(i).then(|| array.value(i) <span class="kw">as </span>i64)
<a href=#282 id=282 data-nosnippet>282</a> }
<a href=#283 id=283 data-nosnippet>283</a> DataType::UInt64 =&gt; {
<a href=#284 id=284 data-nosnippet>284</a> <span class="kw">let </span>array = array.as_primitive::&lt;UInt64Type&gt;();
<a href=#285 id=285 data-nosnippet>285</a> array
<a href=#286 id=286 data-nosnippet>286</a> .is_valid(i)
<a href=#287 id=287 data-nosnippet>287</a> .then(|| {
<a href=#288 id=288 data-nosnippet>288</a> <span class="kw">let </span>i = array.value(i);
<a href=#289 id=289 data-nosnippet>289</a> <span class="kw">if </span>i &lt;= i64::MAX <span class="kw">as </span>u64 {
<a href=#290 id=290 data-nosnippet>290</a> <span class="prelude-val">Some</span>(i <span class="kw">as </span>i64)
<a href=#291 id=291 data-nosnippet>291</a> } <span class="kw">else </span>{
<a href=#292 id=292 data-nosnippet>292</a> <span class="prelude-val">None
<a href=#293 id=293 data-nosnippet>293</a> </span>}
<a href=#294 id=294 data-nosnippet>294</a> })
<a href=#295 id=295 data-nosnippet>295</a> .flatten()
<a href=#296 id=296 data-nosnippet>296</a> }
<a href=#297 id=297 data-nosnippet>297</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#298 id=298 data-nosnippet>298</a> }
<a href=#299 id=299 data-nosnippet>299</a>}
<a href=#300 id=300 data-nosnippet>300</a>
<a href=#301 id=301 data-nosnippet>301</a><span class="attr">#[cfg(test)]
<a href=#302 id=302 data-nosnippet>302</a></span><span class="kw">mod </span>tests {
<a href=#303 id=303 data-nosnippet>303</a> <span class="kw">use </span>std::sync::Arc;
<a href=#304 id=304 data-nosnippet>304</a>
<a href=#305 id=305 data-nosnippet>305</a> <span class="kw">use </span>arrow::array::StringDictionaryBuilder;
<a href=#306 id=306 data-nosnippet>306</a> <span class="kw">use </span>arrow::datatypes::ArrowDictionaryKeyType;
<a href=#307 id=307 data-nosnippet>307</a>
<a href=#308 id=308 data-nosnippet>308</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#309 id=309 data-nosnippet>309</a>
<a href=#310 id=310 data-nosnippet>310</a> <span class="kw">fn </span>assert_dictionary_key_type&lt;K: ArrowDictionaryKeyType&gt;() {
<a href=#311 id=311 data-nosnippet>311</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = StringDictionaryBuilder::&lt;K&gt;::new();
<a href=#312 id=312 data-nosnippet>312</a> builder.append(<span class="string">"foo"</span>).unwrap();
<a href=#313 id=313 data-nosnippet>313</a> builder.append(<span class="string">"bar"</span>).unwrap();
<a href=#314 id=314 data-nosnippet>314</a> builder.append(<span class="string">"foo"</span>).unwrap();
<a href=#315 id=315 data-nosnippet>315</a> builder.append_null();
<a href=#316 id=316 data-nosnippet>316</a> <span class="kw">let </span>array: ArrayRef = Arc::new(builder.finish());
<a href=#317 id=317 data-nosnippet>317</a>
<a href=#318 id=318 data-nosnippet>318</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="string">"foo"</span>), string_array_value_at_index(<span class="kw-2">&amp;</span>array, <span class="number">0</span>));
<a href=#319 id=319 data-nosnippet>319</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="string">"bar"</span>), string_array_value_at_index(<span class="kw-2">&amp;</span>array, <span class="number">1</span>));
<a href=#320 id=320 data-nosnippet>320</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="string">"foo"</span>), string_array_value_at_index(<span class="kw-2">&amp;</span>array, <span class="number">2</span>));
<a href=#321 id=321 data-nosnippet>321</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, string_array_value_at_index(<span class="kw-2">&amp;</span>array, <span class="number">3</span>));
<a href=#322 id=322 data-nosnippet>322</a> }
<a href=#323 id=323 data-nosnippet>323</a>
<a href=#324 id=324 data-nosnippet>324</a> <span class="attr">#[test]
<a href=#325 id=325 data-nosnippet>325</a> </span><span class="kw">fn </span>reads_dictionary_encoded_strings_with_all_key_types() {
<a href=#326 id=326 data-nosnippet>326</a> assert_dictionary_key_type::&lt;Int8Type&gt;();
<a href=#327 id=327 data-nosnippet>327</a> assert_dictionary_key_type::&lt;Int16Type&gt;();
<a href=#328 id=328 data-nosnippet>328</a> assert_dictionary_key_type::&lt;Int32Type&gt;();
<a href=#329 id=329 data-nosnippet>329</a> assert_dictionary_key_type::&lt;Int64Type&gt;();
<a href=#330 id=330 data-nosnippet>330</a> assert_dictionary_key_type::&lt;UInt8Type&gt;();
<a href=#331 id=331 data-nosnippet>331</a> assert_dictionary_key_type::&lt;UInt16Type&gt;();
<a href=#332 id=332 data-nosnippet>332</a> assert_dictionary_key_type::&lt;UInt32Type&gt;();
<a href=#333 id=333 data-nosnippet>333</a> assert_dictionary_key_type::&lt;UInt64Type&gt;();
<a href=#334 id=334 data-nosnippet>334</a> }
<a href=#335 id=335 data-nosnippet>335</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/duration.rs`."><title>duration.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>duration.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>common_time::duration::Duration;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>common_time::timestamp::TimeUnit;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>paste::paste;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span><span class="kw">crate</span>::prelude::{Scalar, Value, ValueRef};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::scalars::ScalarRef;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::types::{
<a href=#23 id=23 data-nosnippet>23</a> DurationMicrosecondType, DurationMillisecondType, DurationNanosecondType, DurationSecondType,
<a href=#24 id=24 data-nosnippet>24</a> WrapperType,
<a href=#25 id=25 data-nosnippet>25</a>};
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#27 id=27 data-nosnippet>27</a> DurationMicrosecondVector, DurationMillisecondVector, DurationNanosecondVector,
<a href=#28 id=28 data-nosnippet>28</a> DurationSecondVector,
<a href=#29 id=29 data-nosnippet>29</a>};
<a href=#30 id=30 data-nosnippet>30</a>
<a href=#31 id=31 data-nosnippet>31</a><span class="macro">macro_rules!</span> define_duration_with_unit {
<a href=#32 id=32 data-nosnippet>32</a> (<span class="macro-nonterminal">$unit</span>: ident) =&gt; {
<a href=#33 id=33 data-nosnippet>33</a> <span class="macro">paste!</span> {
<a href=#34 id=34 data-nosnippet>34</a> <span class="attr">#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
<a href=#35 id=35 data-nosnippet>35</a> </span><span class="kw">pub struct </span>[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;](<span class="kw">pub </span>Duration);
<a href=#36 id=36 data-nosnippet>36</a>
<a href=#37 id=37 data-nosnippet>37</a> <span class="kw">impl </span>[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#38 id=38 data-nosnippet>38</a> <span class="kw">pub fn </span>new(val: i64) -&gt; <span class="self">Self </span>{
<a href=#39 id=39 data-nosnippet>39</a> <span class="self">Self</span>(Duration::new(val, TimeUnit::<span class="macro-nonterminal">$unit</span>))
<a href=#40 id=40 data-nosnippet>40</a> }
<a href=#41 id=41 data-nosnippet>41</a> }
<a href=#42 id=42 data-nosnippet>42</a>
<a href=#43 id=43 data-nosnippet>43</a> <span class="kw">impl </span>Default <span class="kw">for </span>[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#44 id=44 data-nosnippet>44</a> <span class="kw">fn </span>default() -&gt; <span class="self">Self </span>{
<a href=#45 id=45 data-nosnippet>45</a> <span class="self">Self</span>::new(<span class="number">0</span>)
<a href=#46 id=46 data-nosnippet>46</a> }
<a href=#47 id=47 data-nosnippet>47</a> }
<a href=#48 id=48 data-nosnippet>48</a>
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">impl </span>From&lt;[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;]&gt; <span class="kw">for </span>Value {
<a href=#50 id=50 data-nosnippet>50</a> <span class="kw">fn </span>from(t: [&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;]) -&gt; Value {
<a href=#51 id=51 data-nosnippet>51</a> Value::Duration(t.<span class="number">0</span>)
<a href=#52 id=52 data-nosnippet>52</a> }
<a href=#53 id=53 data-nosnippet>53</a> }
<a href=#54 id=54 data-nosnippet>54</a>
<a href=#55 id=55 data-nosnippet>55</a> <span class="kw">impl </span>From&lt;[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;]&gt; <span class="kw">for </span>serde_json::Value {
<a href=#56 id=56 data-nosnippet>56</a> <span class="kw">fn </span>from(t: [&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;]) -&gt; <span class="self">Self </span>{
<a href=#57 id=57 data-nosnippet>57</a> t.<span class="number">0</span>.into()
<a href=#58 id=58 data-nosnippet>58</a> }
<a href=#59 id=59 data-nosnippet>59</a> }
<a href=#60 id=60 data-nosnippet>60</a>
<a href=#61 id=61 data-nosnippet>61</a> <span class="kw">impl </span>From&lt;[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;]&gt; <span class="kw">for </span>ValueRef&lt;<span class="lifetime">'static</span>&gt; {
<a href=#62 id=62 data-nosnippet>62</a> <span class="kw">fn </span>from(t: [&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;]) -&gt; <span class="self">Self </span>{
<a href=#63 id=63 data-nosnippet>63</a> ValueRef::Duration(t.<span class="number">0</span>)
<a href=#64 id=64 data-nosnippet>64</a> }
<a href=#65 id=65 data-nosnippet>65</a> }
<a href=#66 id=66 data-nosnippet>66</a>
<a href=#67 id=67 data-nosnippet>67</a> <span class="kw">impl </span>Scalar <span class="kw">for </span>[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#68 id=68 data-nosnippet>68</a> <span class="kw">type </span>VectorType = [&lt;Duration <span class="macro-nonterminal">$unit </span>Vector&gt;];
<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = [&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;];
<a href=#70 id=70 data-nosnippet>70</a>
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'_</span>&gt; {
<a href=#72 id=72 data-nosnippet>72</a> <span class="kw-2">*</span><span class="self">self
<a href=#73 id=73 data-nosnippet>73</a> </span>}
<a href=#74 id=74 data-nosnippet>74</a>
<a href=#75 id=75 data-nosnippet>75</a> <span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(
<a href=#76 id=76 data-nosnippet>76</a> long: <span class="self">Self</span>::RefType&lt;<span class="lifetime">'long</span>&gt;,
<a href=#77 id=77 data-nosnippet>77</a> ) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'short</span>&gt; {
<a href=#78 id=78 data-nosnippet>78</a> long
<a href=#79 id=79 data-nosnippet>79</a> }
<a href=#80 id=80 data-nosnippet>80</a> }
<a href=#81 id=81 data-nosnippet>81</a>
<a href=#82 id=82 data-nosnippet>82</a> <span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; ScalarRef&lt;<span class="lifetime">'a</span>&gt; <span class="kw">for </span>[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">type </span>ScalarType = [&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;];
<a href=#84 id=84 data-nosnippet>84</a>
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::ScalarType {
<a href=#86 id=86 data-nosnippet>86</a> <span class="kw-2">*</span><span class="self">self
<a href=#87 id=87 data-nosnippet>87</a> </span>}
<a href=#88 id=88 data-nosnippet>88</a> }
<a href=#89 id=89 data-nosnippet>89</a>
<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">impl </span>WrapperType <span class="kw">for </span>[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">type </span>LogicalType = [&lt;Duration <span class="macro-nonterminal">$unit </span>Type&gt;];
<a href=#92 id=92 data-nosnippet>92</a> <span class="kw">type </span>Native = i64;
<a href=#93 id=93 data-nosnippet>93</a>
<a href=#94 id=94 data-nosnippet>94</a> <span class="kw">fn </span>from_native(value: <span class="self">Self</span>::Native) -&gt; <span class="self">Self </span>{
<a href=#95 id=95 data-nosnippet>95</a> <span class="self">Self</span>::new(value)
<a href=#96 id=96 data-nosnippet>96</a> }
<a href=#97 id=97 data-nosnippet>97</a>
<a href=#98 id=98 data-nosnippet>98</a> <span class="kw">fn </span>into_native(<span class="self">self</span>) -&gt; <span class="self">Self</span>::Native {
<a href=#99 id=99 data-nosnippet>99</a> <span class="self">self</span>.<span class="number">0</span>.into()
<a href=#100 id=100 data-nosnippet>100</a> }
<a href=#101 id=101 data-nosnippet>101</a> }
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a> <span class="kw">impl </span>From&lt;i64&gt; <span class="kw">for </span>[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#104 id=104 data-nosnippet>104</a> <span class="kw">fn </span>from(val: i64) -&gt; <span class="self">Self </span>{
<a href=#105 id=105 data-nosnippet>105</a> [&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;]::from_native(val)
<a href=#106 id=106 data-nosnippet>106</a> }
<a href=#107 id=107 data-nosnippet>107</a> }
<a href=#108 id=108 data-nosnippet>108</a>
<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">impl </span>From&lt;[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;]&gt; <span class="kw">for </span>i64{
<a href=#110 id=110 data-nosnippet>110</a> <span class="kw">fn </span>from(val: [&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;]) -&gt; <span class="self">Self </span>{
<a href=#111 id=111 data-nosnippet>111</a> val.<span class="number">0</span>.value()
<a href=#112 id=112 data-nosnippet>112</a> }
<a href=#113 id=113 data-nosnippet>113</a> }
<a href=#114 id=114 data-nosnippet>114</a>
<a href=#115 id=115 data-nosnippet>115</a> <span class="kw">impl </span>TryFrom&lt;Value&gt; <span class="kw">for </span><span class="prelude-ty">Option</span>&lt;[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;]&gt; {
<a href=#116 id=116 data-nosnippet>116</a> <span class="kw">type </span>Error = <span class="macro-nonterminal">$crate::error::Error</span>;
<a href=#117 id=117 data-nosnippet>117</a>
<a href=#118 id=118 data-nosnippet>118</a> <span class="attr">#[inline]
<a href=#119 id=119 data-nosnippet>119</a> </span><span class="kw">fn </span>try_from(from: Value) -&gt; std::result::Result&lt;<span class="self">Self</span>, <span class="self">Self</span>::Error&gt; {
<a href=#120 id=120 data-nosnippet>120</a> <span class="kw">match </span>from {
<a href=#121 id=121 data-nosnippet>121</a> Value::Duration(v) <span class="kw">if </span>v.unit() == TimeUnit::<span class="macro-nonterminal">$unit </span>=&gt; {
<a href=#122 id=122 data-nosnippet>122</a> <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>([&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;](v)))
<a href=#123 id=123 data-nosnippet>123</a> },
<a href=#124 id=124 data-nosnippet>124</a> Value::Null =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">_ </span>=&gt; <span class="macro-nonterminal">$crate::error::TryFromValueSnafu </span>{
<a href=#126 id=126 data-nosnippet>126</a> reason: <span class="macro">format!</span>(<span class="string">"{:?} is not a {}"</span>, from, <span class="macro">stringify!</span>([&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;])),
<a href=#127 id=127 data-nosnippet>127</a> }
<a href=#128 id=128 data-nosnippet>128</a> .fail(),
<a href=#129 id=129 data-nosnippet>129</a> }
<a href=#130 id=130 data-nosnippet>130</a> }
<a href=#131 id=131 data-nosnippet>131</a> }
<a href=#132 id=132 data-nosnippet>132</a> }
<a href=#133 id=133 data-nosnippet>133</a> };
<a href=#134 id=134 data-nosnippet>134</a>}
<a href=#135 id=135 data-nosnippet>135</a>
<a href=#136 id=136 data-nosnippet>136</a><span class="macro">define_duration_with_unit!</span>(Second);
<a href=#137 id=137 data-nosnippet>137</a><span class="macro">define_duration_with_unit!</span>(Millisecond);
<a href=#138 id=138 data-nosnippet>138</a><span class="macro">define_duration_with_unit!</span>(Microsecond);
<a href=#139 id=139 data-nosnippet>139</a><span class="macro">define_duration_with_unit!</span>(Nanosecond);
<a href=#140 id=140 data-nosnippet>140</a>
<a href=#141 id=141 data-nosnippet>141</a><span class="attr">#[cfg(test)]
<a href=#142 id=142 data-nosnippet>142</a></span><span class="kw">mod </span>tests {
<a href=#143 id=143 data-nosnippet>143</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#144 id=144 data-nosnippet>144</a>
<a href=#145 id=145 data-nosnippet>145</a> <span class="attr">#[test]
<a href=#146 id=146 data-nosnippet>146</a> </span><span class="kw">fn </span>test_duration_scalar() {
<a href=#147 id=147 data-nosnippet>147</a> <span class="kw">let </span>d = DurationSecond::new(<span class="number">456</span>);
<a href=#148 id=148 data-nosnippet>148</a> <span class="macro">assert_eq!</span>(d, d.as_scalar_ref());
<a href=#149 id=149 data-nosnippet>149</a> <span class="macro">assert_eq!</span>(d, d.to_owned_scalar());
<a href=#150 id=150 data-nosnippet>150</a> <span class="kw">let </span>d = DurationMillisecond::new(<span class="number">456</span>);
<a href=#151 id=151 data-nosnippet>151</a> <span class="macro">assert_eq!</span>(d, d.as_scalar_ref());
<a href=#152 id=152 data-nosnippet>152</a> <span class="macro">assert_eq!</span>(d, d.to_owned_scalar());
<a href=#153 id=153 data-nosnippet>153</a> <span class="kw">let </span>d = DurationMicrosecond::new(<span class="number">456</span>);
<a href=#154 id=154 data-nosnippet>154</a> <span class="macro">assert_eq!</span>(d, d.as_scalar_ref());
<a href=#155 id=155 data-nosnippet>155</a> <span class="macro">assert_eq!</span>(d, d.to_owned_scalar());
<a href=#156 id=156 data-nosnippet>156</a> <span class="kw">let </span>d = DurationNanosecond::new(<span class="number">456</span>);
<a href=#157 id=157 data-nosnippet>157</a> <span class="macro">assert_eq!</span>(d, d.as_scalar_ref());
<a href=#158 id=158 data-nosnippet>158</a> <span class="macro">assert_eq!</span>(d, d.to_owned_scalar());
<a href=#159 id=159 data-nosnippet>159</a> }
<a href=#160 id=160 data-nosnippet>160</a>
<a href=#161 id=161 data-nosnippet>161</a> <span class="attr">#[test]
<a href=#162 id=162 data-nosnippet>162</a> </span><span class="kw">fn </span>test_duration_to_native_type() {
<a href=#163 id=163 data-nosnippet>163</a> <span class="kw">let </span>duration = DurationSecond::new(<span class="number">456</span>);
<a href=#164 id=164 data-nosnippet>164</a> <span class="kw">let </span>native: i64 = duration.into_native();
<a href=#165 id=165 data-nosnippet>165</a> <span class="macro">assert_eq!</span>(native, <span class="number">456</span>);
<a href=#166 id=166 data-nosnippet>166</a>
<a href=#167 id=167 data-nosnippet>167</a> <span class="kw">let </span>duration = DurationMillisecond::new(<span class="number">456</span>);
<a href=#168 id=168 data-nosnippet>168</a> <span class="kw">let </span>native: i64 = duration.into_native();
<a href=#169 id=169 data-nosnippet>169</a> <span class="macro">assert_eq!</span>(native, <span class="number">456</span>);
<a href=#170 id=170 data-nosnippet>170</a>
<a href=#171 id=171 data-nosnippet>171</a> <span class="kw">let </span>duration = DurationMicrosecond::new(<span class="number">456</span>);
<a href=#172 id=172 data-nosnippet>172</a> <span class="kw">let </span>native: i64 = duration.into_native();
<a href=#173 id=173 data-nosnippet>173</a> <span class="macro">assert_eq!</span>(native, <span class="number">456</span>);
<a href=#174 id=174 data-nosnippet>174</a>
<a href=#175 id=175 data-nosnippet>175</a> <span class="kw">let </span>duration = DurationNanosecond::new(<span class="number">456</span>);
<a href=#176 id=176 data-nosnippet>176</a> <span class="kw">let </span>native: i64 = duration.into_native();
<a href=#177 id=177 data-nosnippet>177</a> <span class="macro">assert_eq!</span>(native, <span class="number">456</span>);
<a href=#178 id=178 data-nosnippet>178</a> }
<a href=#179 id=179 data-nosnippet>179</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/error.rs`."><title>error.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>error.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::any::Any;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>common_error::ext::ErrorExt;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>common_error::status_code::StatusCode;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>common_macro::stack_trace_debug;
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>snafu::{Location, Snafu};
<a href=#21 id=21 data-nosnippet>21</a>
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#23 id=23 data-nosnippet>23</a>
<a href=#24 id=24 data-nosnippet>24</a><span class="doccomment">/// Shared error message for rejecting a time index type change that is not a
<a href=#25 id=25 data-nosnippet>25</a>/// widening timestamp unit change; used by both the region and table layer.
<a href=#26 id=26 data-nosnippet>26</a></span><span class="kw">pub fn </span>time_index_not_widening_error(
<a href=#27 id=27 data-nosnippet>27</a> column_name: <span class="kw-2">&amp;</span>str,
<a href=#28 id=28 data-nosnippet>28</a> from_type: <span class="kw-2">&amp;</span>ConcreteDataType,
<a href=#29 id=29 data-nosnippet>29</a> to_type: <span class="kw-2">&amp;</span>ConcreteDataType,
<a href=#30 id=30 data-nosnippet>30</a>) -&gt; String {
<a href=#31 id=31 data-nosnippet>31</a> <span class="macro">format!</span>(
<a href=#32 id=32 data-nosnippet>32</a> <span class="string">"time index column '{column_name}' only supports widening its timestamp \
<a href=#33 id=33 data-nosnippet>33</a> unit, cannot change type from '{from_type}' to '{to_type}'"
<a href=#34 id=34 data-nosnippet>34</a> </span>)
<a href=#35 id=35 data-nosnippet>35</a>}
<a href=#36 id=36 data-nosnippet>36</a>
<a href=#37 id=37 data-nosnippet>37</a><span class="attr">#[derive(Snafu)]
<a href=#38 id=38 data-nosnippet>38</a>#[snafu(visibility(<span class="kw">pub</span>))]
<a href=#39 id=39 data-nosnippet>39</a>#[stack_trace_debug]
<a href=#40 id=40 data-nosnippet>40</a></span><span class="kw">pub enum </span>Error {
<a href=#41 id=41 data-nosnippet>41</a> <span class="attr">#[snafu(display(<span class="string">"Failed to serialize data"</span>))]
<a href=#42 id=42 data-nosnippet>42</a> </span>Serialize {
<a href=#43 id=43 data-nosnippet>43</a> <span class="attr">#[snafu(source)]
<a href=#44 id=44 data-nosnippet>44</a> </span>error: serde_json::Error,
<a href=#45 id=45 data-nosnippet>45</a> <span class="attr">#[snafu(implicit)]
<a href=#46 id=46 data-nosnippet>46</a> </span>location: Location,
<a href=#47 id=47 data-nosnippet>47</a> },
<a href=#48 id=48 data-nosnippet>48</a>
<a href=#49 id=49 data-nosnippet>49</a> <span class="attr">#[snafu(display(<span class="string">"Failed to deserialize data, json: {}"</span>, json))]
<a href=#50 id=50 data-nosnippet>50</a> </span>Deserialize {
<a href=#51 id=51 data-nosnippet>51</a> <span class="attr">#[snafu(source)]
<a href=#52 id=52 data-nosnippet>52</a> </span>error: serde_json::Error,
<a href=#53 id=53 data-nosnippet>53</a> <span class="attr">#[snafu(implicit)]
<a href=#54 id=54 data-nosnippet>54</a> </span>location: Location,
<a href=#55 id=55 data-nosnippet>55</a> json: String,
<a href=#56 id=56 data-nosnippet>56</a> },
<a href=#57 id=57 data-nosnippet>57</a>
<a href=#58 id=58 data-nosnippet>58</a> <span class="attr">#[snafu(display(<span class="string">"Failed to convert datafusion type: {}"</span>, from))]
<a href=#59 id=59 data-nosnippet>59</a> </span>Conversion {
<a href=#60 id=60 data-nosnippet>60</a> from: String,
<a href=#61 id=61 data-nosnippet>61</a> <span class="attr">#[snafu(implicit)]
<a href=#62 id=62 data-nosnippet>62</a> </span>location: Location,
<a href=#63 id=63 data-nosnippet>63</a> },
<a href=#64 id=64 data-nosnippet>64</a>
<a href=#65 id=65 data-nosnippet>65</a> <span class="attr">#[snafu(display(<span class="string">"Bad array access, Index out of bounds: {}, size: {}"</span>, index, size))]
<a href=#66 id=66 data-nosnippet>66</a> </span>BadArrayAccess {
<a href=#67 id=67 data-nosnippet>67</a> index: usize,
<a href=#68 id=68 data-nosnippet>68</a> size: usize,
<a href=#69 id=69 data-nosnippet>69</a> <span class="attr">#[snafu(implicit)]
<a href=#70 id=70 data-nosnippet>70</a> </span>location: Location,
<a href=#71 id=71 data-nosnippet>71</a> },
<a href=#72 id=72 data-nosnippet>72</a>
<a href=#73 id=73 data-nosnippet>73</a> <span class="attr">#[snafu(display(<span class="string">"Unknown vector, {}"</span>, msg))]
<a href=#74 id=74 data-nosnippet>74</a> </span>UnknownVector {
<a href=#75 id=75 data-nosnippet>75</a> msg: String,
<a href=#76 id=76 data-nosnippet>76</a> <span class="attr">#[snafu(implicit)]
<a href=#77 id=77 data-nosnippet>77</a> </span>location: Location,
<a href=#78 id=78 data-nosnippet>78</a> },
<a href=#79 id=79 data-nosnippet>79</a>
<a href=#80 id=80 data-nosnippet>80</a> <span class="attr">#[snafu(display(<span class="string">"Unsupported arrow data type, type: {:?}"</span>, arrow_type))]
<a href=#81 id=81 data-nosnippet>81</a> </span>UnsupportedArrowType {
<a href=#82 id=82 data-nosnippet>82</a> arrow_type: arrow::datatypes::DataType,
<a href=#83 id=83 data-nosnippet>83</a> <span class="attr">#[snafu(implicit)]
<a href=#84 id=84 data-nosnippet>84</a> </span>location: Location,
<a href=#85 id=85 data-nosnippet>85</a> },
<a href=#86 id=86 data-nosnippet>86</a>
<a href=#87 id=87 data-nosnippet>87</a> <span class="attr">#[snafu(display(<span class="string">"Unsupported operation: {} for vector: {}"</span>, op, vector_type))]
<a href=#88 id=88 data-nosnippet>88</a> </span>UnsupportedOperation {
<a href=#89 id=89 data-nosnippet>89</a> op: String,
<a href=#90 id=90 data-nosnippet>90</a> vector_type: String,
<a href=#91 id=91 data-nosnippet>91</a> <span class="attr">#[snafu(implicit)]
<a href=#92 id=92 data-nosnippet>92</a> </span>location: Location,
<a href=#93 id=93 data-nosnippet>93</a> },
<a href=#94 id=94 data-nosnippet>94</a>
<a href=#95 id=95 data-nosnippet>95</a> <span class="attr">#[snafu(display(<span class="string">"Unimplemented: {feat}"</span>))]
<a href=#96 id=96 data-nosnippet>96</a> </span>Unimplemented {
<a href=#97 id=97 data-nosnippet>97</a> feat: String,
<a href=#98 id=98 data-nosnippet>98</a> <span class="attr">#[snafu(implicit)]
<a href=#99 id=99 data-nosnippet>99</a> </span>location: Location,
<a href=#100 id=100 data-nosnippet>100</a> },
<a href=#101 id=101 data-nosnippet>101</a>
<a href=#102 id=102 data-nosnippet>102</a> <span class="attr">#[snafu(display(<span class="string">"Failed to parse version in schema meta, value: {}"</span>, value))]
<a href=#103 id=103 data-nosnippet>103</a> </span>ParseSchemaVersion {
<a href=#104 id=104 data-nosnippet>104</a> value: String,
<a href=#105 id=105 data-nosnippet>105</a> <span class="attr">#[snafu(source)]
<a href=#106 id=106 data-nosnippet>106</a> </span>error: std::num::ParseIntError,
<a href=#107 id=107 data-nosnippet>107</a> <span class="attr">#[snafu(implicit)]
<a href=#108 id=108 data-nosnippet>108</a> </span>location: Location,
<a href=#109 id=109 data-nosnippet>109</a> },
<a href=#110 id=110 data-nosnippet>110</a>
<a href=#111 id=111 data-nosnippet>111</a> <span class="attr">#[snafu(display(<span class="string">"Invalid timestamp index: {}"</span>, index))]
<a href=#112 id=112 data-nosnippet>112</a> </span>InvalidTimestampIndex {
<a href=#113 id=113 data-nosnippet>113</a> index: usize,
<a href=#114 id=114 data-nosnippet>114</a> <span class="attr">#[snafu(implicit)]
<a href=#115 id=115 data-nosnippet>115</a> </span>location: Location,
<a href=#116 id=116 data-nosnippet>116</a> },
<a href=#117 id=117 data-nosnippet>117</a>
<a href=#118 id=118 data-nosnippet>118</a> <span class="attr">#[snafu(display(<span class="string">"{}"</span>, msg))]
<a href=#119 id=119 data-nosnippet>119</a> </span>CastType {
<a href=#120 id=120 data-nosnippet>120</a> msg: String,
<a href=#121 id=121 data-nosnippet>121</a> <span class="attr">#[snafu(implicit)]
<a href=#122 id=122 data-nosnippet>122</a> </span>location: Location,
<a href=#123 id=123 data-nosnippet>123</a> },
<a href=#124 id=124 data-nosnippet>124</a>
<a href=#125 id=125 data-nosnippet>125</a> <span class="attr">#[snafu(display(<span class="string">"Failed to cast arrow time i32 type into i64"</span>))]
<a href=#126 id=126 data-nosnippet>126</a> </span>CastTimeType {
<a href=#127 id=127 data-nosnippet>127</a> <span class="attr">#[snafu(source)]
<a href=#128 id=128 data-nosnippet>128</a> </span>error: std::num::TryFromIntError,
<a href=#129 id=129 data-nosnippet>129</a> <span class="attr">#[snafu(implicit)]
<a href=#130 id=130 data-nosnippet>130</a> </span>location: Location,
<a href=#131 id=131 data-nosnippet>131</a> },
<a href=#132 id=132 data-nosnippet>132</a>
<a href=#133 id=133 data-nosnippet>133</a> <span class="attr">#[snafu(display(<span class="string">"Arrow failed to compute"</span>))]
<a href=#134 id=134 data-nosnippet>134</a> </span>ArrowCompute {
<a href=#135 id=135 data-nosnippet>135</a> <span class="attr">#[snafu(source)]
<a href=#136 id=136 data-nosnippet>136</a> </span>error: arrow::error::ArrowError,
<a href=#137 id=137 data-nosnippet>137</a> <span class="attr">#[snafu(implicit)]
<a href=#138 id=138 data-nosnippet>138</a> </span>location: Location,
<a href=#139 id=139 data-nosnippet>139</a> },
<a href=#140 id=140 data-nosnippet>140</a>
<a href=#141 id=141 data-nosnippet>141</a> <span class="attr">#[snafu(display(<span class="string">"Failed to project arrow schema"</span>))]
<a href=#142 id=142 data-nosnippet>142</a> </span>ProjectArrowSchema {
<a href=#143 id=143 data-nosnippet>143</a> <span class="attr">#[snafu(source)]
<a href=#144 id=144 data-nosnippet>144</a> </span>error: arrow::error::ArrowError,
<a href=#145 id=145 data-nosnippet>145</a> <span class="attr">#[snafu(implicit)]
<a href=#146 id=146 data-nosnippet>146</a> </span>location: Location,
<a href=#147 id=147 data-nosnippet>147</a> },
<a href=#148 id=148 data-nosnippet>148</a>
<a href=#149 id=149 data-nosnippet>149</a> <span class="attr">#[snafu(display(<span class="string">"Unsupported column default constraint expression: {}"</span>, expr))]
<a href=#150 id=150 data-nosnippet>150</a> </span>UnsupportedDefaultExpr {
<a href=#151 id=151 data-nosnippet>151</a> expr: String,
<a href=#152 id=152 data-nosnippet>152</a> <span class="attr">#[snafu(implicit)]
<a href=#153 id=153 data-nosnippet>153</a> </span>location: Location,
<a href=#154 id=154 data-nosnippet>154</a> },
<a href=#155 id=155 data-nosnippet>155</a>
<a href=#156 id=156 data-nosnippet>156</a> <span class="attr">#[snafu(display(<span class="string">"Default value should not be null for non null column"</span>))]
<a href=#157 id=157 data-nosnippet>157</a> </span>NullDefault {
<a href=#158 id=158 data-nosnippet>158</a> <span class="attr">#[snafu(implicit)]
<a href=#159 id=159 data-nosnippet>159</a> </span>location: Location,
<a href=#160 id=160 data-nosnippet>160</a> },
<a href=#161 id=161 data-nosnippet>161</a>
<a href=#162 id=162 data-nosnippet>162</a> <span class="attr">#[snafu(display(<span class="string">"Incompatible default value type, reason: {}"</span>, reason))]
<a href=#163 id=163 data-nosnippet>163</a> </span>DefaultValueType {
<a href=#164 id=164 data-nosnippet>164</a> reason: String,
<a href=#165 id=165 data-nosnippet>165</a> <span class="attr">#[snafu(implicit)]
<a href=#166 id=166 data-nosnippet>166</a> </span>location: Location,
<a href=#167 id=167 data-nosnippet>167</a> },
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a> <span class="attr">#[snafu(display(<span class="string">"Duplicated metadata for {}"</span>, key))]
<a href=#170 id=170 data-nosnippet>170</a> </span>DuplicateMeta {
<a href=#171 id=171 data-nosnippet>171</a> key: String,
<a href=#172 id=172 data-nosnippet>172</a> <span class="attr">#[snafu(implicit)]
<a href=#173 id=173 data-nosnippet>173</a> </span>location: Location,
<a href=#174 id=174 data-nosnippet>174</a> },
<a href=#175 id=175 data-nosnippet>175</a>
<a href=#176 id=176 data-nosnippet>176</a> <span class="attr">#[snafu(display(<span class="string">"Failed to convert value into scalar value, reason: {}"</span>, reason))]
<a href=#177 id=177 data-nosnippet>177</a> </span>ToScalarValue {
<a href=#178 id=178 data-nosnippet>178</a> reason: String,
<a href=#179 id=179 data-nosnippet>179</a> <span class="attr">#[snafu(implicit)]
<a href=#180 id=180 data-nosnippet>180</a> </span>location: Location,
<a href=#181 id=181 data-nosnippet>181</a> },
<a href=#182 id=182 data-nosnippet>182</a>
<a href=#183 id=183 data-nosnippet>183</a> <span class="attr">#[snafu(display(<span class="string">"Invalid timestamp precision: {}"</span>, precision))]
<a href=#184 id=184 data-nosnippet>184</a> </span>InvalidTimestampPrecision {
<a href=#185 id=185 data-nosnippet>185</a> precision: u64,
<a href=#186 id=186 data-nosnippet>186</a> <span class="attr">#[snafu(implicit)]
<a href=#187 id=187 data-nosnippet>187</a> </span>location: Location,
<a href=#188 id=188 data-nosnippet>188</a> },
<a href=#189 id=189 data-nosnippet>189</a>
<a href=#190 id=190 data-nosnippet>190</a> <span class="attr">#[snafu(display(<span class="string">"Column {} already exists"</span>, column))]
<a href=#191 id=191 data-nosnippet>191</a> </span>DuplicateColumn {
<a href=#192 id=192 data-nosnippet>192</a> column: String,
<a href=#193 id=193 data-nosnippet>193</a> <span class="attr">#[snafu(implicit)]
<a href=#194 id=194 data-nosnippet>194</a> </span>location: Location,
<a href=#195 id=195 data-nosnippet>195</a> },
<a href=#196 id=196 data-nosnippet>196</a>
<a href=#197 id=197 data-nosnippet>197</a> <span class="attr">#[snafu(display(<span class="string">"Failed to unpack value to given type: {}"</span>, reason))]
<a href=#198 id=198 data-nosnippet>198</a> </span>TryFromValue {
<a href=#199 id=199 data-nosnippet>199</a> reason: String,
<a href=#200 id=200 data-nosnippet>200</a> <span class="attr">#[snafu(implicit)]
<a href=#201 id=201 data-nosnippet>201</a> </span>location: Location,
<a href=#202 id=202 data-nosnippet>202</a> },
<a href=#203 id=203 data-nosnippet>203</a>
<a href=#204 id=204 data-nosnippet>204</a> <span class="attr">#[snafu(display(<span class="string">"Failed to specify the precision {} and scale {}"</span>, precision, scale))]
<a href=#205 id=205 data-nosnippet>205</a> </span>InvalidPrecisionOrScale {
<a href=#206 id=206 data-nosnippet>206</a> precision: u8,
<a href=#207 id=207 data-nosnippet>207</a> scale: i8,
<a href=#208 id=208 data-nosnippet>208</a> <span class="attr">#[snafu(source)]
<a href=#209 id=209 data-nosnippet>209</a> </span>error: arrow::error::ArrowError,
<a href=#210 id=210 data-nosnippet>210</a> <span class="attr">#[snafu(implicit)]
<a href=#211 id=211 data-nosnippet>211</a> </span>location: Location,
<a href=#212 id=212 data-nosnippet>212</a> },
<a href=#213 id=213 data-nosnippet>213</a>
<a href=#214 id=214 data-nosnippet>214</a> <span class="attr">#[snafu(display(<span class="string">"Invalid JSON: {}"</span>, value))]
<a href=#215 id=215 data-nosnippet>215</a> </span>InvalidJson {
<a href=#216 id=216 data-nosnippet>216</a> value: String,
<a href=#217 id=217 data-nosnippet>217</a> <span class="attr">#[snafu(implicit)]
<a href=#218 id=218 data-nosnippet>218</a> </span>location: Location,
<a href=#219 id=219 data-nosnippet>219</a> },
<a href=#220 id=220 data-nosnippet>220</a>
<a href=#221 id=221 data-nosnippet>221</a> <span class="attr">#[snafu(display(<span class="string">"Invalid JSON2 layout: {reason}"</span>))]
<a href=#222 id=222 data-nosnippet>222</a> </span>InvalidJson2Layout {
<a href=#223 id=223 data-nosnippet>223</a> reason: String,
<a href=#224 id=224 data-nosnippet>224</a> <span class="attr">#[snafu(implicit)]
<a href=#225 id=225 data-nosnippet>225</a> </span>location: Location,
<a href=#226 id=226 data-nosnippet>226</a> },
<a href=#227 id=227 data-nosnippet>227</a>
<a href=#228 id=228 data-nosnippet>228</a> <span class="attr">#[snafu(display(<span class="string">"Invalid JSON2 settings: {reason}"</span>))]
<a href=#229 id=229 data-nosnippet>229</a> </span>InvalidJson2Settings {
<a href=#230 id=230 data-nosnippet>230</a> reason: String,
<a href=#231 id=231 data-nosnippet>231</a> <span class="attr">#[snafu(implicit)]
<a href=#232 id=232 data-nosnippet>232</a> </span>location: Location,
<a href=#233 id=233 data-nosnippet>233</a> },
<a href=#234 id=234 data-nosnippet>234</a>
<a href=#235 id=235 data-nosnippet>235</a> <span class="attr">#[snafu(display(<span class="string">"Invalid Vector: {}"</span>, msg))]
<a href=#236 id=236 data-nosnippet>236</a> </span>InvalidVector {
<a href=#237 id=237 data-nosnippet>237</a> msg: String,
<a href=#238 id=238 data-nosnippet>238</a> <span class="attr">#[snafu(implicit)]
<a href=#239 id=239 data-nosnippet>239</a> </span>location: Location,
<a href=#240 id=240 data-nosnippet>240</a> },
<a href=#241 id=241 data-nosnippet>241</a>
<a href=#242 id=242 data-nosnippet>242</a> <span class="attr">#[snafu(display(<span class="string">"Value exceeds the precision {} bound"</span>, precision))]
<a href=#243 id=243 data-nosnippet>243</a> </span>ValueExceedsPrecision {
<a href=#244 id=244 data-nosnippet>244</a> precision: u8,
<a href=#245 id=245 data-nosnippet>245</a> <span class="attr">#[snafu(source)]
<a href=#246 id=246 data-nosnippet>246</a> </span>error: arrow::error::ArrowError,
<a href=#247 id=247 data-nosnippet>247</a> <span class="attr">#[snafu(implicit)]
<a href=#248 id=248 data-nosnippet>248</a> </span>location: Location,
<a href=#249 id=249 data-nosnippet>249</a> },
<a href=#250 id=250 data-nosnippet>250</a>
<a href=#251 id=251 data-nosnippet>251</a> <span class="attr">#[snafu(display(<span class="string">"Failed to convert Arrow array to scalars"</span>))]
<a href=#252 id=252 data-nosnippet>252</a> </span>ConvertArrowArrayToScalars {
<a href=#253 id=253 data-nosnippet>253</a> <span class="attr">#[snafu(source)]
<a href=#254 id=254 data-nosnippet>254</a> </span>error: datafusion_common::DataFusionError,
<a href=#255 id=255 data-nosnippet>255</a> <span class="attr">#[snafu(implicit)]
<a href=#256 id=256 data-nosnippet>256</a> </span>location: Location,
<a href=#257 id=257 data-nosnippet>257</a> },
<a href=#258 id=258 data-nosnippet>258</a>
<a href=#259 id=259 data-nosnippet>259</a> <span class="attr">#[snafu(display(<span class="string">"Failed to convert scalar value to Arrow array"</span>))]
<a href=#260 id=260 data-nosnippet>260</a> </span>ConvertScalarToArrowArray {
<a href=#261 id=261 data-nosnippet>261</a> <span class="attr">#[snafu(source)]
<a href=#262 id=262 data-nosnippet>262</a> </span>error: datafusion_common::DataFusionError,
<a href=#263 id=263 data-nosnippet>263</a> <span class="attr">#[snafu(implicit)]
<a href=#264 id=264 data-nosnippet>264</a> </span>location: Location,
<a href=#265 id=265 data-nosnippet>265</a> },
<a href=#266 id=266 data-nosnippet>266</a>
<a href=#267 id=267 data-nosnippet>267</a> <span class="attr">#[snafu(display(<span class="string">"Failed to parse extended type in metadata: {}"</span>, value))]
<a href=#268 id=268 data-nosnippet>268</a> </span>ParseExtendedType {
<a href=#269 id=269 data-nosnippet>269</a> value: String,
<a href=#270 id=270 data-nosnippet>270</a> <span class="attr">#[snafu(implicit)]
<a href=#271 id=271 data-nosnippet>271</a> </span>location: Location,
<a href=#272 id=272 data-nosnippet>272</a> },
<a href=#273 id=273 data-nosnippet>273</a>
<a href=#274 id=274 data-nosnippet>274</a> <span class="attr">#[snafu(display(<span class="string">"Invalid fulltext option: {}"</span>, msg))]
<a href=#275 id=275 data-nosnippet>275</a> </span>InvalidFulltextOption {
<a href=#276 id=276 data-nosnippet>276</a> msg: String,
<a href=#277 id=277 data-nosnippet>277</a> <span class="attr">#[snafu(implicit)]
<a href=#278 id=278 data-nosnippet>278</a> </span>location: Location,
<a href=#279 id=279 data-nosnippet>279</a> },
<a href=#280 id=280 data-nosnippet>280</a>
<a href=#281 id=281 data-nosnippet>281</a> <span class="attr">#[snafu(display(<span class="string">"Invalid skipping index option: {}"</span>, msg))]
<a href=#282 id=282 data-nosnippet>282</a> </span>InvalidSkippingIndexOption {
<a href=#283 id=283 data-nosnippet>283</a> msg: String,
<a href=#284 id=284 data-nosnippet>284</a> <span class="attr">#[snafu(implicit)]
<a href=#285 id=285 data-nosnippet>285</a> </span>location: Location,
<a href=#286 id=286 data-nosnippet>286</a> },
<a href=#287 id=287 data-nosnippet>287</a>
<a href=#288 id=288 data-nosnippet>288</a> <span class="attr">#[snafu(display(<span class="string">"Inconsistent struct field count {field_len} and item count {item_len}"</span>))]
<a href=#289 id=289 data-nosnippet>289</a> </span>InconsistentStructFieldsAndItems {
<a href=#290 id=290 data-nosnippet>290</a> field_len: usize,
<a href=#291 id=291 data-nosnippet>291</a> item_len: usize,
<a href=#292 id=292 data-nosnippet>292</a> <span class="attr">#[snafu(implicit)]
<a href=#293 id=293 data-nosnippet>293</a> </span>location: Location,
<a href=#294 id=294 data-nosnippet>294</a> },
<a href=#295 id=295 data-nosnippet>295</a>
<a href=#296 id=296 data-nosnippet>296</a> <span class="attr">#[snafu(display(<span class="string">"Failed to process JSONB value"</span>))]
<a href=#297 id=297 data-nosnippet>297</a> </span>InvalidJsonb {
<a href=#298 id=298 data-nosnippet>298</a> error: jsonb::Error,
<a href=#299 id=299 data-nosnippet>299</a> <span class="attr">#[snafu(implicit)]
<a href=#300 id=300 data-nosnippet>300</a> </span>location: Location,
<a href=#301 id=301 data-nosnippet>301</a> },
<a href=#302 id=302 data-nosnippet>302</a>
<a href=#303 id=303 data-nosnippet>303</a> <span class="attr">#[snafu(display(<span class="string">"Failed to parse or serialize arrow metadata"</span>))]
<a href=#304 id=304 data-nosnippet>304</a> </span>ArrowMetadata {
<a href=#305 id=305 data-nosnippet>305</a> <span class="attr">#[snafu(source)]
<a href=#306 id=306 data-nosnippet>306</a> </span>error: arrow::error::ArrowError,
<a href=#307 id=307 data-nosnippet>307</a> <span class="attr">#[snafu(implicit)]
<a href=#308 id=308 data-nosnippet>308</a> </span>location: Location,
<a href=#309 id=309 data-nosnippet>309</a> },
<a href=#310 id=310 data-nosnippet>310</a>
<a href=#311 id=311 data-nosnippet>311</a> <span class="attr">#[snafu(display(<span class="string">"Failed to align JSON value, reason: {}"</span>, reason))]
<a href=#312 id=312 data-nosnippet>312</a> </span>AlignJsonValue {
<a href=#313 id=313 data-nosnippet>313</a> reason: String,
<a href=#314 id=314 data-nosnippet>314</a> <span class="attr">#[snafu(implicit)]
<a href=#315 id=315 data-nosnippet>315</a> </span>location: Location,
<a href=#316 id=316 data-nosnippet>316</a> },
<a href=#317 id=317 data-nosnippet>317</a>
<a href=#318 id=318 data-nosnippet>318</a> <span class="attr">#[snafu(display(<span class="string">"Failed to align JSON array, reason: {reason}"</span>))]
<a href=#319 id=319 data-nosnippet>319</a> </span>AlignJsonArray {
<a href=#320 id=320 data-nosnippet>320</a> reason: String,
<a href=#321 id=321 data-nosnippet>321</a> <span class="attr">#[snafu(implicit)]
<a href=#322 id=322 data-nosnippet>322</a> </span>location: Location,
<a href=#323 id=323 data-nosnippet>323</a> },
<a href=#324 id=324 data-nosnippet>324</a>
<a href=#325 id=325 data-nosnippet>325</a> <span class="attr">#[snafu(display(<span class="string">"Non-object json is not supported currently"</span>))]
<a href=#326 id=326 data-nosnippet>326</a> </span>UnsupportedJsonType {
<a href=#327 id=327 data-nosnippet>327</a> <span class="attr">#[snafu(implicit)]
<a href=#328 id=328 data-nosnippet>328</a> </span>location: Location,
<a href=#329 id=329 data-nosnippet>329</a> },
<a href=#330 id=330 data-nosnippet>330</a>
<a href=#331 id=331 data-nosnippet>331</a> <span class="attr">#[snafu(display(<span class="string">"unexpected: {reason}"</span>))]
<a href=#332 id=332 data-nosnippet>332</a> </span>Unexpected {
<a href=#333 id=333 data-nosnippet>333</a> reason: String,
<a href=#334 id=334 data-nosnippet>334</a> <span class="attr">#[snafu(implicit)]
<a href=#335 id=335 data-nosnippet>335</a> </span>location: Location,
<a href=#336 id=336 data-nosnippet>336</a> },
<a href=#337 id=337 data-nosnippet>337</a>}
<a href=#338 id=338 data-nosnippet>338</a>
<a href=#339 id=339 data-nosnippet>339</a><span class="kw">impl </span>ErrorExt <span class="kw">for </span>Error {
<a href=#340 id=340 data-nosnippet>340</a> <span class="kw">fn </span>status_code(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; StatusCode {
<a href=#341 id=341 data-nosnippet>341</a> <span class="kw">use </span>Error::<span class="kw-2">*</span>;
<a href=#342 id=342 data-nosnippet>342</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#343 id=343 data-nosnippet>343</a> UnsupportedOperation { .. }
<a href=#344 id=344 data-nosnippet>344</a> | Unimplemented { .. }
<a href=#345 id=345 data-nosnippet>345</a> | UnsupportedArrowType { .. }
<a href=#346 id=346 data-nosnippet>346</a> | UnsupportedJsonType { .. }
<a href=#347 id=347 data-nosnippet>347</a> | UnsupportedDefaultExpr { .. } =&gt; StatusCode::Unsupported,
<a href=#348 id=348 data-nosnippet>348</a>
<a href=#349 id=349 data-nosnippet>349</a> DuplicateColumn { .. }
<a href=#350 id=350 data-nosnippet>350</a> | BadArrayAccess { .. }
<a href=#351 id=351 data-nosnippet>351</a> | NullDefault { .. }
<a href=#352 id=352 data-nosnippet>352</a> | InvalidTimestampIndex { .. }
<a href=#353 id=353 data-nosnippet>353</a> | DefaultValueType { .. }
<a href=#354 id=354 data-nosnippet>354</a> | DuplicateMeta { .. }
<a href=#355 id=355 data-nosnippet>355</a> | InvalidTimestampPrecision { .. }
<a href=#356 id=356 data-nosnippet>356</a> | InvalidPrecisionOrScale { .. }
<a href=#357 id=357 data-nosnippet>357</a> | InvalidJson { .. }
<a href=#358 id=358 data-nosnippet>358</a> | InvalidJson2Layout { .. }
<a href=#359 id=359 data-nosnippet>359</a> | InvalidJson2Settings { .. }
<a href=#360 id=360 data-nosnippet>360</a> | InvalidJsonb { .. }
<a href=#361 id=361 data-nosnippet>361</a> | InvalidVector { .. }
<a href=#362 id=362 data-nosnippet>362</a> | InvalidFulltextOption { .. }
<a href=#363 id=363 data-nosnippet>363</a> | InvalidSkippingIndexOption { .. } =&gt; StatusCode::InvalidArguments,
<a href=#364 id=364 data-nosnippet>364</a>
<a href=#365 id=365 data-nosnippet>365</a> ValueExceedsPrecision { .. }
<a href=#366 id=366 data-nosnippet>366</a> | CastType { .. }
<a href=#367 id=367 data-nosnippet>367</a> | CastTimeType { .. }
<a href=#368 id=368 data-nosnippet>368</a> | Conversion { .. } =&gt; StatusCode::IllegalState,
<a href=#369 id=369 data-nosnippet>369</a>
<a href=#370 id=370 data-nosnippet>370</a> Serialize { .. }
<a href=#371 id=371 data-nosnippet>371</a> | Deserialize { .. }
<a href=#372 id=372 data-nosnippet>372</a> | UnknownVector { .. }
<a href=#373 id=373 data-nosnippet>373</a> | ParseSchemaVersion { .. }
<a href=#374 id=374 data-nosnippet>374</a> | ArrowCompute { .. }
<a href=#375 id=375 data-nosnippet>375</a> | ProjectArrowSchema { .. }
<a href=#376 id=376 data-nosnippet>376</a> | ToScalarValue { .. }
<a href=#377 id=377 data-nosnippet>377</a> | TryFromValue { .. }
<a href=#378 id=378 data-nosnippet>378</a> | ConvertArrowArrayToScalars { .. }
<a href=#379 id=379 data-nosnippet>379</a> | ConvertScalarToArrowArray { .. }
<a href=#380 id=380 data-nosnippet>380</a> | ParseExtendedType { .. }
<a href=#381 id=381 data-nosnippet>381</a> | InconsistentStructFieldsAndItems { .. }
<a href=#382 id=382 data-nosnippet>382</a> | ArrowMetadata { .. }
<a href=#383 id=383 data-nosnippet>383</a> | AlignJsonValue { .. }
<a href=#384 id=384 data-nosnippet>384</a> | AlignJsonArray { .. } =&gt; StatusCode::Internal,
<a href=#385 id=385 data-nosnippet>385</a>
<a href=#386 id=386 data-nosnippet>386</a> Unexpected { .. } =&gt; StatusCode::Unexpected,
<a href=#387 id=387 data-nosnippet>387</a> }
<a href=#388 id=388 data-nosnippet>388</a> }
<a href=#389 id=389 data-nosnippet>389</a>
<a href=#390 id=390 data-nosnippet>390</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#391 id=391 data-nosnippet>391</a> <span class="self">self
<a href=#392 id=392 data-nosnippet>392</a> </span>}
<a href=#393 id=393 data-nosnippet>393</a>}
<a href=#394 id=394 data-nosnippet>394</a>
<a href=#395 id=395 data-nosnippet>395</a><span class="kw">pub type </span><span class="prelude-ty">Result</span>&lt;T&gt; = std::result::Result&lt;T, Error&gt;;
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/extension.rs`."><title>extension.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>extension.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">pub mod </span>histogram;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">pub mod </span>json;
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/extension/histogram.rs`."><title>histogram.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/extension/</div>histogram.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="doccomment">//! Arrow extension type for native-histogram struct columns.
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a></span><span class="kw">use </span>arrow_schema::extension::ExtensionType;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>arrow_schema::{ArrowError, DataType, FieldRef};
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a><span class="doccomment">/// Arrow extension type identifying a native-histogram struct column.
<a href=#21 id=21 data-nosnippet>21</a>///
<a href=#22 id=22 data-nosnippet>22</a>/// Applied to the struct field at parquet-write time so that readers can
<a href=#23 id=23 data-nosnippet>23</a>/// identify native-histogram columns by extension (`greptime.histogram`) rather
<a href=#24 id=24 data-nosnippet>24</a>/// than relying on the field name.
<a href=#25 id=25 data-nosnippet>25</a></span><span class="attr">#[derive(Debug, Clone, Default)]
<a href=#26 id=26 data-nosnippet>26</a></span><span class="kw">pub struct </span>HistogramExtensionType;
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">impl </span>ExtensionType <span class="kw">for </span>HistogramExtensionType {
<a href=#29 id=29 data-nosnippet>29</a> <span class="kw">const </span>NAME: <span class="kw-2">&amp;</span><span class="lifetime">'static </span>str = <span class="string">"greptime.histogram"</span>;
<a href=#30 id=30 data-nosnippet>30</a> <span class="kw">type </span>Metadata = ();
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a> <span class="kw">fn </span>metadata(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="self">Self</span>::Metadata {
<a href=#33 id=33 data-nosnippet>33</a> <span class="kw-2">&amp;</span>()
<a href=#34 id=34 data-nosnippet>34</a> }
<a href=#35 id=35 data-nosnippet>35</a>
<a href=#36 id=36 data-nosnippet>36</a> <span class="kw">fn </span>serialize_metadata(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;String&gt; {
<a href=#37 id=37 data-nosnippet>37</a> <span class="prelude-val">None
<a href=#38 id=38 data-nosnippet>38</a> </span>}
<a href=#39 id=39 data-nosnippet>39</a>
<a href=#40 id=40 data-nosnippet>40</a> <span class="kw">fn </span>deserialize_metadata(_metadata: <span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>str&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>::Metadata, ArrowError&gt; {
<a href=#41 id=41 data-nosnippet>41</a> <span class="prelude-val">Ok</span>(())
<a href=#42 id=42 data-nosnippet>42</a> }
<a href=#43 id=43 data-nosnippet>43</a>
<a href=#44 id=44 data-nosnippet>44</a> <span class="kw">fn </span>supports_data_type(<span class="kw-2">&amp;</span><span class="self">self</span>, data_type: <span class="kw-2">&amp;</span>DataType) -&gt; <span class="prelude-ty">Result</span>&lt;(), ArrowError&gt; {
<a href=#45 id=45 data-nosnippet>45</a> <span class="kw">match </span>data_type {
<a href=#46 id=46 data-nosnippet>46</a> DataType::Struct(<span class="kw">_</span>) =&gt; <span class="prelude-val">Ok</span>(()),
<a href=#47 id=47 data-nosnippet>47</a> dt =&gt; <span class="prelude-val">Err</span>(ArrowError::SchemaError(<span class="macro">format!</span>(
<a href=#48 id=48 data-nosnippet>48</a> <span class="string">"Unexpected data type {dt}"
<a href=#49 id=49 data-nosnippet>49</a> </span>))),
<a href=#50 id=50 data-nosnippet>50</a> }
<a href=#51 id=51 data-nosnippet>51</a> }
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a> <span class="kw">fn </span>try_new(data_type: <span class="kw-2">&amp;</span>DataType, _metadata: <span class="self">Self</span>::Metadata) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>, ArrowError&gt; {
<a href=#54 id=54 data-nosnippet>54</a> <span class="kw">let </span>ext = <span class="self">Self</span>;
<a href=#55 id=55 data-nosnippet>55</a> ext.supports_data_type(data_type)<span class="question-mark">?</span>;
<a href=#56 id=56 data-nosnippet>56</a> <span class="prelude-val">Ok</span>(ext)
<a href=#57 id=57 data-nosnippet>57</a> }
<a href=#58 id=58 data-nosnippet>58</a>}
<a href=#59 id=59 data-nosnippet>59</a>
<a href=#60 id=60 data-nosnippet>60</a><span class="doccomment">/// Check if this field is a native-histogram extension type.
<a href=#61 id=61 data-nosnippet>61</a></span><span class="kw">pub fn </span>is_histogram_extension_type(field: <span class="kw-2">&amp;</span>FieldRef) -&gt; bool {
<a href=#62 id=62 data-nosnippet>62</a> field.extension_type_name() == <span class="prelude-val">Some</span>(HistogramExtensionType::NAME)
<a href=#63 id=63 data-nosnippet>63</a>}
<a href=#64 id=64 data-nosnippet>64</a>
<a href=#65 id=65 data-nosnippet>65</a><span class="attr">#[cfg(test)]
<a href=#66 id=66 data-nosnippet>66</a></span><span class="kw">mod </span>tests {
<a href=#67 id=67 data-nosnippet>67</a> <span class="kw">use </span>arrow_schema::extension::EXTENSION_TYPE_NAME_KEY;
<a href=#68 id=68 data-nosnippet>68</a> <span class="kw">use </span>arrow_schema::{DataType, Field, Fields};
<a href=#69 id=69 data-nosnippet>69</a>
<a href=#70 id=70 data-nosnippet>70</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#71 id=71 data-nosnippet>71</a>
<a href=#72 id=72 data-nosnippet>72</a> <span class="attr">#[test]
<a href=#73 id=73 data-nosnippet>73</a> </span><span class="kw">fn </span>test_extension_name_and_detection() {
<a href=#74 id=74 data-nosnippet>74</a> <span class="macro">assert_eq!</span>(HistogramExtensionType::NAME, <span class="string">"greptime.histogram"</span>);
<a href=#75 id=75 data-nosnippet>75</a>
<a href=#76 id=76 data-nosnippet>76</a> <span class="comment">// A plain struct field is not a histogram extension type.
<a href=#77 id=77 data-nosnippet>77</a> </span><span class="kw">let </span>empty: Fields = Vec::&lt;Field&gt;::new().into();
<a href=#78 id=78 data-nosnippet>78</a> <span class="kw">let </span>plain = std::sync::Arc::new(Field::new(<span class="string">"s"</span>, DataType::Struct(empty), <span class="bool-val">true</span>));
<a href=#79 id=79 data-nosnippet>79</a> <span class="macro">assert!</span>(!is_histogram_extension_type(<span class="kw-2">&amp;</span>plain));
<a href=#80 id=80 data-nosnippet>80</a>
<a href=#81 id=81 data-nosnippet>81</a> <span class="comment">// Tagging the field with the extension makes it detectable.
<a href=#82 id=82 data-nosnippet>82</a> </span><span class="kw">let </span><span class="kw-2">mut </span>tagged = (<span class="kw-2">*</span>plain).clone();
<a href=#83 id=83 data-nosnippet>83</a> tagged.metadata_mut().insert(
<a href=#84 id=84 data-nosnippet>84</a> EXTENSION_TYPE_NAME_KEY.to_string(),
<a href=#85 id=85 data-nosnippet>85</a> HistogramExtensionType::NAME.to_string(),
<a href=#86 id=86 data-nosnippet>86</a> );
<a href=#87 id=87 data-nosnippet>87</a> <span class="kw">let </span>tagged = std::sync::Arc::new(tagged);
<a href=#88 id=88 data-nosnippet>88</a> <span class="macro">assert!</span>(is_histogram_extension_type(<span class="kw-2">&amp;</span>tagged));
<a href=#89 id=89 data-nosnippet>89</a> }
<a href=#90 id=90 data-nosnippet>90</a>
<a href=#91 id=91 data-nosnippet>91</a> <span class="attr">#[test]
<a href=#92 id=92 data-nosnippet>92</a> </span><span class="kw">fn </span>test_supports_struct_only() {
<a href=#93 id=93 data-nosnippet>93</a> <span class="kw">let </span>ext = HistogramExtensionType;
<a href=#94 id=94 data-nosnippet>94</a> <span class="kw">let </span>empty: Fields = Vec::&lt;Field&gt;::new().into();
<a href=#95 id=95 data-nosnippet>95</a> <span class="macro">assert!</span>(ext.supports_data_type(<span class="kw-2">&amp;</span>DataType::Struct(empty)).is_ok());
<a href=#96 id=96 data-nosnippet>96</a> <span class="macro">assert!</span>(ext.supports_data_type(<span class="kw-2">&amp;</span>DataType::Int32).is_err());
<a href=#97 id=97 data-nosnippet>97</a> }
<a href=#98 id=98 data-nosnippet>98</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/extension/json.rs`."><title>json.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/extension/</div>json.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::collections::HashMap;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::sync::Arc;
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>arrow_array::ArrayRef;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>arrow_schema::extension::{
<a href=#20 id=20 data-nosnippet>20</a> EXTENSION_TYPE_METADATA_KEY, EXTENSION_TYPE_NAME_KEY, ExtensionType,
<a href=#21 id=21 data-nosnippet>21</a>};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>arrow_schema::{ArrowError, DataType, Field, FieldRef, Schema, SchemaRef};
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>parquet_variant_compute::VariantType;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span>snafu::{ResultExt, ensure};
<a href=#26 id=26 data-nosnippet>26</a>
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::error::{InvalidJson2LayoutSnafu, SerializeSnafu};
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">pub use </span><span class="kw">crate</span>::json::JSON2_REMAINDER_FIELD_NAME;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::json::JsonSettings;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::schema::Metadata;
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="doccomment">/// Aligns JSON2 field types with their built arrays while preserving field and schema metadata.
<a href=#33 id=33 data-nosnippet>33</a></span><span class="kw">pub fn </span>align_schema_with_json_array(schema: SchemaRef, columns: <span class="kw-2">&amp;</span>[ArrayRef]) -&gt; SchemaRef {
<a href=#34 id=34 data-nosnippet>34</a> <span class="kw">if </span>schema.fields().iter().all(|f| !is_json2_extension_type(f)) {
<a href=#35 id=35 data-nosnippet>35</a> <span class="kw">return </span>schema;
<a href=#36 id=36 data-nosnippet>36</a> }
<a href=#37 id=37 data-nosnippet>37</a>
<a href=#38 id=38 data-nosnippet>38</a> <span class="kw">let </span><span class="kw-2">mut </span>fields = Vec::with_capacity(schema.fields().len());
<a href=#39 id=39 data-nosnippet>39</a> <span class="kw">for </span>(field, array) <span class="kw">in </span>schema.fields().iter().zip(columns) {
<a href=#40 id=40 data-nosnippet>40</a> <span class="kw">if </span>!is_json2_extension_type(field) {
<a href=#41 id=41 data-nosnippet>41</a> fields.push(field.clone());
<a href=#42 id=42 data-nosnippet>42</a> <span class="kw">continue</span>;
<a href=#43 id=43 data-nosnippet>43</a> }
<a href=#44 id=44 data-nosnippet>44</a>
<a href=#45 id=45 data-nosnippet>45</a> <span class="kw">let </span><span class="kw-2">mut </span>field = field.as_ref().clone();
<a href=#46 id=46 data-nosnippet>46</a> field.set_data_type(array.data_type().clone());
<a href=#47 id=47 data-nosnippet>47</a> fields.push(Arc::new(field));
<a href=#48 id=48 data-nosnippet>48</a> }
<a href=#49 id=49 data-nosnippet>49</a>
<a href=#50 id=50 data-nosnippet>50</a> Arc::new(Schema::new_with_metadata(fields, schema.metadata().clone()))
<a href=#51 id=51 data-nosnippet>51</a>}
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a><span class="kw">const </span>LEGACY_JSON_STRUCTURE_SETTINGS_KEY: <span class="kw-2">&amp;</span>str = <span class="string">"json_structure_settings"</span>;
<a href=#54 id=54 data-nosnippet>54</a><span class="kw">const </span>JSON2_LAYOUT_V1: u8 = <span class="number">1</span>;
<a href=#55 id=55 data-nosnippet>55</a><span class="kw">const </span>JSON2_LAYOUT_V2: u8 = <span class="number">2</span>;
<a href=#56 id=56 data-nosnippet>56</a>
<a href=#57 id=57 data-nosnippet>57</a><span class="doccomment">/// Parsed physical layout of a JSON2 Arrow root field.
<a href=#58 id=58 data-nosnippet>58</a></span><span class="attr">#[derive(Debug, Clone, PartialEq, Eq)]
<a href=#59 id=59 data-nosnippet>59</a></span><span class="kw">pub struct </span>Json2PhysicalLayout {
<a href=#60 id=60 data-nosnippet>60</a> version: u8,
<a href=#61 id=61 data-nosnippet>61</a>}
<a href=#62 id=62 data-nosnippet>62</a>
<a href=#63 id=63 data-nosnippet>63</a><span class="kw">impl </span>Json2PhysicalLayout {
<a href=#64 id=64 data-nosnippet>64</a> <span class="doccomment">/// Parses the JSON2 layout version from a root field.
<a href=#65 id=65 data-nosnippet>65</a> ///
<a href=#66 id=66 data-nosnippet>66</a> /// The version is read from the extension metadata; missing metadata
<a href=#67 id=67 data-nosnippet>67</a> /// defaults to V1.
<a href=#68 id=68 data-nosnippet>68</a> ///
<a href=#69 id=69 data-nosnippet>69</a> /// Supported versions:
<a href=#70 id=70 data-nosnippet>70</a> /// - V1
<a href=#71 id=71 data-nosnippet>71</a> /// - V2
<a href=#72 id=72 data-nosnippet>72</a> ///
<a href=#73 id=73 data-nosnippet>73</a> /// Errors when the field is not a JSON2 extension or the version is not
<a href=#74 id=74 data-nosnippet>74</a> /// one of the supported versions.
<a href=#75 id=75 data-nosnippet>75</a> </span><span class="kw">pub fn </span>try_from_root(field: <span class="kw-2">&amp;</span>Field) -&gt; <span class="kw">crate</span>::error::Result&lt;<span class="self">Self</span>&gt; {
<a href=#76 id=76 data-nosnippet>76</a> <span class="macro">ensure!</span>(
<a href=#77 id=77 data-nosnippet>77</a> is_json2_extension_type(field),
<a href=#78 id=78 data-nosnippet>78</a> InvalidJson2LayoutSnafu {
<a href=#79 id=79 data-nosnippet>79</a> reason: <span class="macro">format!</span>(<span class="string">"field '{}' is not a JSON2 extension"</span>, field.name()),
<a href=#80 id=80 data-nosnippet>80</a> }
<a href=#81 id=81 data-nosnippet>81</a> );
<a href=#82 id=82 data-nosnippet>82</a>
<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">let </span>version = <span class="kw">match </span>field.extension_type_name() {
<a href=#84 id=84 data-nosnippet>84</a> <span class="prelude-val">Some</span>(Json2ExtensionType::NAME) =&gt; field
<a href=#85 id=85 data-nosnippet>85</a> .metadata()
<a href=#86 id=86 data-nosnippet>86</a> .get(EXTENSION_TYPE_METADATA_KEY)
<a href=#87 id=87 data-nosnippet>87</a> .map(|x| parse_version(x))
<a href=#88 id=88 data-nosnippet>88</a> .transpose()<span class="question-mark">?
<a href=#89 id=89 data-nosnippet>89</a> </span>.flatten()
<a href=#90 id=90 data-nosnippet>90</a> .unwrap_or(JSON2_LAYOUT_V1),
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">_ </span>=&gt; JSON2_LAYOUT_V1,
<a href=#92 id=92 data-nosnippet>92</a> };
<a href=#93 id=93 data-nosnippet>93</a> <span class="macro">ensure!</span>(
<a href=#94 id=94 data-nosnippet>94</a> <span class="macro">matches!</span>(version, JSON2_LAYOUT_V1 | JSON2_LAYOUT_V2),
<a href=#95 id=95 data-nosnippet>95</a> InvalidJson2LayoutSnafu {
<a href=#96 id=96 data-nosnippet>96</a> reason: <span class="macro">format!</span>(<span class="string">"unsupported JSON2 layout version: {version}"</span>),
<a href=#97 id=97 data-nosnippet>97</a> }
<a href=#98 id=98 data-nosnippet>98</a> );
<a href=#99 id=99 data-nosnippet>99</a> <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ version })
<a href=#100 id=100 data-nosnippet>100</a> }
<a href=#101 id=101 data-nosnippet>101</a>
<a href=#102 id=102 data-nosnippet>102</a> <span class="doccomment">/// Returns whether this is the JSON2 physical layout version 2.
<a href=#103 id=103 data-nosnippet>103</a> </span><span class="kw">pub fn </span>is_version_2(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#104 id=104 data-nosnippet>104</a> <span class="self">self</span>.version == JSON2_LAYOUT_V2
<a href=#105 id=105 data-nosnippet>105</a> }
<a href=#106 id=106 data-nosnippet>106</a>}
<a href=#107 id=107 data-nosnippet>107</a>
<a href=#108 id=108 data-nosnippet>108</a><span class="kw">fn </span>parse_version(metadata: <span class="kw-2">&amp;</span>str) -&gt; <span class="kw">crate</span>::error::Result&lt;<span class="prelude-ty">Option</span>&lt;u8&gt;&gt; {
<a href=#109 id=109 data-nosnippet>109</a> serde_json::from_str::&lt;JsonMetadata&gt;(metadata)
<a href=#110 id=110 data-nosnippet>110</a> .map(|x| x.layout_version)
<a href=#111 id=111 data-nosnippet>111</a> .map_err(|e| {
<a href=#112 id=112 data-nosnippet>112</a> InvalidJson2LayoutSnafu {
<a href=#113 id=113 data-nosnippet>113</a> reason: <span class="macro">format!</span>(<span class="string">r#"invalid extension metadata: "{metadata}", error: {e}"#</span>),
<a href=#114 id=114 data-nosnippet>114</a> }
<a href=#115 id=115 data-nosnippet>115</a> .build()
<a href=#116 id=116 data-nosnippet>116</a> })
<a href=#117 id=117 data-nosnippet>117</a>}
<a href=#118 id=118 data-nosnippet>118</a>
<a href=#119 id=119 data-nosnippet>119</a><span class="doccomment">/// Returns the remainder field of a JSON2 v2 root.
<a href=#120 id=120 data-nosnippet>120</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>json2_remainder_field(field: <span class="kw-2">&amp;</span>Field) -&gt; <span class="kw">crate</span>::error::Result&lt;<span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>FieldRef&gt;&gt; {
<a href=#121 id=121 data-nosnippet>121</a> <span class="kw">let </span>layout = Json2PhysicalLayout::try_from_root(field)<span class="question-mark">?</span>;
<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">if </span>!layout.is_version_2() {
<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>);
<a href=#124 id=124 data-nosnippet>124</a> }
<a href=#125 id=125 data-nosnippet>125</a>
<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">let </span>remainder = <span class="kw">if let </span>DataType::Struct(fields) = field.data_type() {
<a href=#127 id=127 data-nosnippet>127</a> fields
<a href=#128 id=128 data-nosnippet>128</a> .iter()
<a href=#129 id=129 data-nosnippet>129</a> .find(|x| x.name() == JSON2_REMAINDER_FIELD_NAME)
<a href=#130 id=130 data-nosnippet>130</a> } <span class="kw">else </span>{
<a href=#131 id=131 data-nosnippet>131</a> <span class="prelude-val">None
<a href=#132 id=132 data-nosnippet>132</a> </span>};
<a href=#133 id=133 data-nosnippet>133</a>
<a href=#134 id=134 data-nosnippet>134</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(remainder) = remainder {
<a href=#135 id=135 data-nosnippet>135</a> <span class="kw">let _ </span>= remainder.try_extension_type::&lt;VariantType&gt;().map_err(|e| {
<a href=#136 id=136 data-nosnippet>136</a> InvalidJson2LayoutSnafu {
<a href=#137 id=137 data-nosnippet>137</a> reason: e.to_string(),
<a href=#138 id=138 data-nosnippet>138</a> }
<a href=#139 id=139 data-nosnippet>139</a> .build()
<a href=#140 id=140 data-nosnippet>140</a> })<span class="question-mark">?</span>;
<a href=#141 id=141 data-nosnippet>141</a> }
<a href=#142 id=142 data-nosnippet>142</a> <span class="prelude-val">Ok</span>(remainder)
<a href=#143 id=143 data-nosnippet>143</a>}
<a href=#144 id=144 data-nosnippet>144</a>
<a href=#145 id=145 data-nosnippet>145</a><span class="attr">#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
<a href=#146 id=146 data-nosnippet>146</a></span><span class="kw">pub struct </span>JsonMetadata {
<a href=#147 id=147 data-nosnippet>147</a> <span class="doccomment">/// JSON2 settings stored in Arrow extension metadata.
<a href=#148 id=148 data-nosnippet>148</a> </span>json_settings: JsonSettings,
<a href=#149 id=149 data-nosnippet>149</a> <span class="doccomment">/// Physical JSON2 layout used by this Arrow field.
<a href=#150 id=150 data-nosnippet>150</a> </span><span class="attr">#[serde(default, skip_serializing_if = <span class="string">"Option::is_none"</span>)]
<a href=#151 id=151 data-nosnippet>151</a> </span>layout_version: <span class="prelude-ty">Option</span>&lt;u8&gt;,
<a href=#152 id=152 data-nosnippet>152</a>}
<a href=#153 id=153 data-nosnippet>153</a>
<a href=#154 id=154 data-nosnippet>154</a><span class="kw">impl </span>JsonMetadata {
<a href=#155 id=155 data-nosnippet>155</a> <span class="doccomment">/// Creates metadata for the latest JSON2 layout (currently V2).
<a href=#156 id=156 data-nosnippet>156</a> </span><span class="kw">pub fn </span>new(json_settings: JsonSettings) -&gt; <span class="self">Self </span>{
<a href=#157 id=157 data-nosnippet>157</a> <span class="self">Self </span>{
<a href=#158 id=158 data-nosnippet>158</a> json_settings,
<a href=#159 id=159 data-nosnippet>159</a> layout_version: <span class="prelude-val">Some</span>(JSON2_LAYOUT_V2),
<a href=#160 id=160 data-nosnippet>160</a> }
<a href=#161 id=161 data-nosnippet>161</a> }
<a href=#162 id=162 data-nosnippet>162</a>
<a href=#163 id=163 data-nosnippet>163</a> <span class="doccomment">/// Creates metadata for the legacy JSON2 layout.
<a href=#164 id=164 data-nosnippet>164</a> </span><span class="kw">pub fn </span>new_v1(json_settings: JsonSettings) -&gt; <span class="self">Self </span>{
<a href=#165 id=165 data-nosnippet>165</a> <span class="self">Self </span>{
<a href=#166 id=166 data-nosnippet>166</a> json_settings,
<a href=#167 id=167 data-nosnippet>167</a> layout_version: <span class="prelude-val">None</span>,
<a href=#168 id=168 data-nosnippet>168</a> }
<a href=#169 id=169 data-nosnippet>169</a> }
<a href=#170 id=170 data-nosnippet>170</a>
<a href=#171 id=171 data-nosnippet>171</a> <span class="doccomment">/// Returns the JSON2 settings.
<a href=#172 id=172 data-nosnippet>172</a> </span><span class="kw">pub fn </span>json_settings(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>JsonSettings {
<a href=#173 id=173 data-nosnippet>173</a> <span class="kw-2">&amp;</span><span class="self">self</span>.json_settings
<a href=#174 id=174 data-nosnippet>174</a> }
<a href=#175 id=175 data-nosnippet>175</a>
<a href=#176 id=176 data-nosnippet>176</a> <span class="doccomment">/// Consumes the metadata and returns its JSON2 settings.
<a href=#177 id=177 data-nosnippet>177</a> </span><span class="kw">pub fn </span>into_json_settings(<span class="self">self</span>) -&gt; JsonSettings {
<a href=#178 id=178 data-nosnippet>178</a> <span class="self">self</span>.json_settings
<a href=#179 id=179 data-nosnippet>179</a> }
<a href=#180 id=180 data-nosnippet>180</a>
<a href=#181 id=181 data-nosnippet>181</a> <span class="doccomment">/// Returns whether this metadata describes JSON2 layout version 2.
<a href=#182 id=182 data-nosnippet>182</a> </span><span class="kw">pub fn </span>is_version_2(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#183 id=183 data-nosnippet>183</a> <span class="self">self</span>.layout_version == <span class="prelude-val">Some</span>(JSON2_LAYOUT_V2)
<a href=#184 id=184 data-nosnippet>184</a> }
<a href=#185 id=185 data-nosnippet>185</a>}
<a href=#186 id=186 data-nosnippet>186</a>
<a href=#187 id=187 data-nosnippet>187</a><span class="kw">impl </span>Default <span class="kw">for </span>JsonMetadata {
<a href=#188 id=188 data-nosnippet>188</a> <span class="kw">fn </span>default() -&gt; <span class="self">Self </span>{
<a href=#189 id=189 data-nosnippet>189</a> <span class="self">Self</span>::new(JsonSettings::default())
<a href=#190 id=190 data-nosnippet>190</a> }
<a href=#191 id=191 data-nosnippet>191</a>}
<a href=#192 id=192 data-nosnippet>192</a>
<a href=#193 id=193 data-nosnippet>193</a><span class="doccomment">/// Arrow extension type for legacy JSONB columns.
<a href=#194 id=194 data-nosnippet>194</a></span><span class="attr">#[derive(Debug, Clone, Default)]
<a href=#195 id=195 data-nosnippet>195</a></span><span class="kw">pub struct </span>JsonExtensionType;
<a href=#196 id=196 data-nosnippet>196</a>
<a href=#197 id=197 data-nosnippet>197</a><span class="kw">impl </span>ExtensionType <span class="kw">for </span>JsonExtensionType {
<a href=#198 id=198 data-nosnippet>198</a> <span class="kw">const </span>NAME: <span class="kw-2">&amp;</span><span class="lifetime">'static </span>str = <span class="string">"greptime.json"</span>;
<a href=#199 id=199 data-nosnippet>199</a> <span class="kw">type </span>Metadata = ();
<a href=#200 id=200 data-nosnippet>200</a>
<a href=#201 id=201 data-nosnippet>201</a> <span class="kw">fn </span>metadata(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="self">Self</span>::Metadata {
<a href=#202 id=202 data-nosnippet>202</a> <span class="kw-2">&amp;</span>()
<a href=#203 id=203 data-nosnippet>203</a> }
<a href=#204 id=204 data-nosnippet>204</a>
<a href=#205 id=205 data-nosnippet>205</a> <span class="kw">fn </span>serialize_metadata(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;String&gt; {
<a href=#206 id=206 data-nosnippet>206</a> <span class="prelude-val">None
<a href=#207 id=207 data-nosnippet>207</a> </span>}
<a href=#208 id=208 data-nosnippet>208</a>
<a href=#209 id=209 data-nosnippet>209</a> <span class="kw">fn </span>deserialize_metadata(_metadata: <span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>str&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>::Metadata, ArrowError&gt; {
<a href=#210 id=210 data-nosnippet>210</a> <span class="prelude-val">Ok</span>(())
<a href=#211 id=211 data-nosnippet>211</a> }
<a href=#212 id=212 data-nosnippet>212</a>
<a href=#213 id=213 data-nosnippet>213</a> <span class="kw">fn </span>supports_data_type(<span class="kw-2">&amp;</span><span class="self">self</span>, data_type: <span class="kw-2">&amp;</span>DataType) -&gt; <span class="prelude-ty">Result</span>&lt;(), ArrowError&gt; {
<a href=#214 id=214 data-nosnippet>214</a> <span class="kw">match </span>data_type {
<a href=#215 id=215 data-nosnippet>215</a> DataType::Binary | DataType::Null =&gt; <span class="prelude-val">Ok</span>(()),
<a href=#216 id=216 data-nosnippet>216</a> t =&gt; <span class="prelude-val">Err</span>(ArrowError::InvalidArgumentError(<span class="macro">format!</span>(
<a href=#217 id=217 data-nosnippet>217</a> <span class="string">"Unexpected data type {t} for JsonExtensionType"
<a href=#218 id=218 data-nosnippet>218</a> </span>))),
<a href=#219 id=219 data-nosnippet>219</a> }
<a href=#220 id=220 data-nosnippet>220</a> }
<a href=#221 id=221 data-nosnippet>221</a>
<a href=#222 id=222 data-nosnippet>222</a> <span class="kw">fn </span>try_new(data_type: <span class="kw-2">&amp;</span>DataType, _metadata: <span class="self">Self</span>::Metadata) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>, ArrowError&gt; {
<a href=#223 id=223 data-nosnippet>223</a> <span class="self">Self</span>.supports_data_type(data_type).map(|<span class="kw">_</span>| <span class="self">Self</span>)
<a href=#224 id=224 data-nosnippet>224</a> }
<a href=#225 id=225 data-nosnippet>225</a>}
<a href=#226 id=226 data-nosnippet>226</a>
<a href=#227 id=227 data-nosnippet>227</a><span class="doccomment">/// Arrow extension type for JSON2 columns and concretized projections.
<a href=#228 id=228 data-nosnippet>228</a></span><span class="attr">#[derive(Debug, Clone, Default)]
<a href=#229 id=229 data-nosnippet>229</a></span><span class="kw">pub struct </span>Json2ExtensionType(Arc&lt;JsonMetadata&gt;);
<a href=#230 id=230 data-nosnippet>230</a>
<a href=#231 id=231 data-nosnippet>231</a><span class="kw">impl </span>Json2ExtensionType {
<a href=#232 id=232 data-nosnippet>232</a> <span class="doccomment">/// Creates a JSON2 extension type with the given metadata.
<a href=#233 id=233 data-nosnippet>233</a> </span><span class="kw">pub fn </span>new(metadata: Arc&lt;JsonMetadata&gt;) -&gt; <span class="self">Self </span>{
<a href=#234 id=234 data-nosnippet>234</a> <span class="self">Self</span>(metadata)
<a href=#235 id=235 data-nosnippet>235</a> }
<a href=#236 id=236 data-nosnippet>236</a>}
<a href=#237 id=237 data-nosnippet>237</a>
<a href=#238 id=238 data-nosnippet>238</a><span class="kw">impl </span>ExtensionType <span class="kw">for </span>Json2ExtensionType {
<a href=#239 id=239 data-nosnippet>239</a> <span class="kw">const </span>NAME: <span class="kw-2">&amp;</span><span class="lifetime">'static </span>str = <span class="string">"greptime.json2"</span>;
<a href=#240 id=240 data-nosnippet>240</a> <span class="kw">type </span>Metadata = Arc&lt;JsonMetadata&gt;;
<a href=#241 id=241 data-nosnippet>241</a>
<a href=#242 id=242 data-nosnippet>242</a> <span class="kw">fn </span>metadata(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="self">Self</span>::Metadata {
<a href=#243 id=243 data-nosnippet>243</a> <span class="kw-2">&amp;</span><span class="self">self</span>.<span class="number">0
<a href=#244 id=244 data-nosnippet>244</a> </span>}
<a href=#245 id=245 data-nosnippet>245</a>
<a href=#246 id=246 data-nosnippet>246</a> <span class="kw">fn </span>serialize_metadata(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;String&gt; {
<a href=#247 id=247 data-nosnippet>247</a> serde_json::to_string(<span class="self">self</span>.metadata()).ok()
<a href=#248 id=248 data-nosnippet>248</a> }
<a href=#249 id=249 data-nosnippet>249</a>
<a href=#250 id=250 data-nosnippet>250</a> <span class="kw">fn </span>deserialize_metadata(metadata: <span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>str&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>::Metadata, ArrowError&gt; {
<a href=#251 id=251 data-nosnippet>251</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(metadata) = metadata {
<a href=#252 id=252 data-nosnippet>252</a> <span class="kw">let </span>metadata = serde_json::from_str(metadata).map_err(|e| {
<a href=#253 id=253 data-nosnippet>253</a> ArrowError::ParseError(<span class="macro">format!</span>(<span class="string">"Failed to deserialize JSON metadata: {}"</span>, e))
<a href=#254 id=254 data-nosnippet>254</a> })<span class="question-mark">?</span>;
<a href=#255 id=255 data-nosnippet>255</a> <span class="prelude-val">Ok</span>(Arc::new(metadata))
<a href=#256 id=256 data-nosnippet>256</a> } <span class="kw">else </span>{
<a href=#257 id=257 data-nosnippet>257</a> <span class="prelude-val">Ok</span>(Arc::new(JsonMetadata::new_v1(JsonSettings::default())))
<a href=#258 id=258 data-nosnippet>258</a> }
<a href=#259 id=259 data-nosnippet>259</a> }
<a href=#260 id=260 data-nosnippet>260</a>
<a href=#261 id=261 data-nosnippet>261</a> <span class="kw">fn </span>supports_data_type(<span class="kw-2">&amp;</span><span class="self">self</span>, data_type: <span class="kw-2">&amp;</span>DataType) -&gt; <span class="prelude-ty">Result</span>&lt;(), ArrowError&gt; {
<a href=#262 id=262 data-nosnippet>262</a> <span class="kw">match </span>data_type {
<a href=#263 id=263 data-nosnippet>263</a> <span class="comment">// object
<a href=#264 id=264 data-nosnippet>264</a> </span>DataType::Struct(<span class="kw">_</span>)
<a href=#265 id=265 data-nosnippet>265</a> <span class="comment">// array
<a href=#266 id=266 data-nosnippet>266</a> </span>| DataType::List(<span class="kw">_</span>)
<a href=#267 id=267 data-nosnippet>267</a> | DataType::ListView(<span class="kw">_</span>)
<a href=#268 id=268 data-nosnippet>268</a> | DataType::LargeList(<span class="kw">_</span>)
<a href=#269 id=269 data-nosnippet>269</a> | DataType::LargeListView(<span class="kw">_</span>)
<a href=#270 id=270 data-nosnippet>270</a> <span class="comment">// string
<a href=#271 id=271 data-nosnippet>271</a> </span>| DataType::Utf8
<a href=#272 id=272 data-nosnippet>272</a> | DataType::Utf8View
<a href=#273 id=273 data-nosnippet>273</a> | DataType::LargeUtf8
<a href=#274 id=274 data-nosnippet>274</a> <span class="comment">// number
<a href=#275 id=275 data-nosnippet>275</a> </span>| DataType::Int8
<a href=#276 id=276 data-nosnippet>276</a> | DataType::Int16
<a href=#277 id=277 data-nosnippet>277</a> | DataType::Int32
<a href=#278 id=278 data-nosnippet>278</a> | DataType::Int64
<a href=#279 id=279 data-nosnippet>279</a> | DataType::UInt8
<a href=#280 id=280 data-nosnippet>280</a> | DataType::UInt16
<a href=#281 id=281 data-nosnippet>281</a> | DataType::UInt32
<a href=#282 id=282 data-nosnippet>282</a> | DataType::UInt64
<a href=#283 id=283 data-nosnippet>283</a> | DataType::Float32
<a href=#284 id=284 data-nosnippet>284</a> | DataType::Float64
<a href=#285 id=285 data-nosnippet>285</a> <span class="comment">// boolean
<a href=#286 id=286 data-nosnippet>286</a> </span>| DataType::Boolean
<a href=#287 id=287 data-nosnippet>287</a> <span class="comment">// null
<a href=#288 id=288 data-nosnippet>288</a> </span>| DataType::Null
<a href=#289 id=289 data-nosnippet>289</a> <span class="comment">// legacy json type
<a href=#290 id=290 data-nosnippet>290</a> </span>| DataType::Binary =&gt; <span class="prelude-val">Ok</span>(()),
<a href=#291 id=291 data-nosnippet>291</a> dt =&gt; <span class="prelude-val">Err</span>(ArrowError::SchemaError(<span class="macro">format!</span>(
<a href=#292 id=292 data-nosnippet>292</a> <span class="string">"Unexpected data type {dt}"
<a href=#293 id=293 data-nosnippet>293</a> </span>))),
<a href=#294 id=294 data-nosnippet>294</a> }
<a href=#295 id=295 data-nosnippet>295</a> }
<a href=#296 id=296 data-nosnippet>296</a>
<a href=#297 id=297 data-nosnippet>297</a> <span class="kw">fn </span>try_new(data_type: <span class="kw-2">&amp;</span>DataType, metadata: <span class="self">Self</span>::Metadata) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>, ArrowError&gt; {
<a href=#298 id=298 data-nosnippet>298</a> <span class="kw">let </span>json = <span class="self">Self</span>(metadata);
<a href=#299 id=299 data-nosnippet>299</a> json.supports_data_type(data_type)<span class="question-mark">?</span>;
<a href=#300 id=300 data-nosnippet>300</a> <span class="prelude-val">Ok</span>(json)
<a href=#301 id=301 data-nosnippet>301</a> }
<a href=#302 id=302 data-nosnippet>302</a>}
<a href=#303 id=303 data-nosnippet>303</a>
<a href=#304 id=304 data-nosnippet>304</a><span class="doccomment">/// Returns JSON2 column metadata with updated settings and the latest layout.
<a href=#305 id=305 data-nosnippet>305</a>///
<a href=#306 id=306 data-nosnippet>306</a>/// Existing SSTs retain their own physical layout metadata.
<a href=#307 id=307 data-nosnippet>307</a></span><span class="kw">pub fn </span>json2_metadata_with_updated_settings(
<a href=#308 id=308 data-nosnippet>308</a> current_metadata: <span class="kw-2">&amp;</span>Metadata,
<a href=#309 id=309 data-nosnippet>309</a> settings: JsonSettings,
<a href=#310 id=310 data-nosnippet>310</a>) -&gt; <span class="kw">crate</span>::error::Result&lt;Metadata&gt; {
<a href=#311 id=311 data-nosnippet>311</a> <span class="kw">let </span>json_metadata = JsonMetadata::new(settings);
<a href=#312 id=312 data-nosnippet>312</a>
<a href=#313 id=313 data-nosnippet>313</a> <span class="kw">let </span><span class="kw-2">mut </span>metadata = current_metadata.clone();
<a href=#314 id=314 data-nosnippet>314</a> metadata.insert(
<a href=#315 id=315 data-nosnippet>315</a> EXTENSION_TYPE_NAME_KEY.to_string(),
<a href=#316 id=316 data-nosnippet>316</a> Json2ExtensionType::NAME.to_string(),
<a href=#317 id=317 data-nosnippet>317</a> );
<a href=#318 id=318 data-nosnippet>318</a> metadata.insert(
<a href=#319 id=319 data-nosnippet>319</a> EXTENSION_TYPE_METADATA_KEY.to_string(),
<a href=#320 id=320 data-nosnippet>320</a> serde_json::to_string(<span class="kw-2">&amp;</span>json_metadata).context(SerializeSnafu)<span class="question-mark">?</span>,
<a href=#321 id=321 data-nosnippet>321</a> );
<a href=#322 id=322 data-nosnippet>322</a> <span class="prelude-val">Ok</span>(metadata)
<a href=#323 id=323 data-nosnippet>323</a>}
<a href=#324 id=324 data-nosnippet>324</a>
<a href=#325 id=325 data-nosnippet>325</a><span class="doccomment">/// Checks whether this field is either a legacy JSONB or JSON2 extension type.
<a href=#326 id=326 data-nosnippet>326</a></span><span class="kw">pub fn </span>is_any_json_extension_type&lt;T: AsRef&lt;Field&gt;&gt;(field: T) -&gt; bool {
<a href=#327 id=327 data-nosnippet>327</a> <span class="kw">let </span>name = field.as_ref().extension_type_name();
<a href=#328 id=328 data-nosnippet>328</a> name == <span class="prelude-val">Some</span>(JsonExtensionType::NAME) || name == <span class="prelude-val">Some</span>(Json2ExtensionType::NAME)
<a href=#329 id=329 data-nosnippet>329</a>}
<a href=#330 id=330 data-nosnippet>330</a>
<a href=#331 id=331 data-nosnippet>331</a><span class="doccomment">/// Parses JSON2 settings stored by the historical `greptime.json` extension.
<a href=#332 id=332 data-nosnippet>332</a></span><span class="kw">pub fn </span>parse_legacy_json2_settings(
<a href=#333 id=333 data-nosnippet>333</a> metadata: <span class="kw-2">&amp;</span>HashMap&lt;String, String&gt;,
<a href=#334 id=334 data-nosnippet>334</a>) -&gt; <span class="kw">crate</span>::error::Result&lt;<span class="prelude-ty">Option</span>&lt;JsonSettings&gt;&gt; {
<a href=#335 id=335 data-nosnippet>335</a> <span class="attr">#[derive(Deserialize)]
<a href=#336 id=336 data-nosnippet>336</a> </span><span class="kw">struct </span>LegacyJsonMetadata {
<a href=#337 id=337 data-nosnippet>337</a> <span class="attr">#[serde(default)]
<a href=#338 id=338 data-nosnippet>338</a> </span>json_settings: <span class="prelude-ty">Option</span>&lt;JsonSettings&gt;,
<a href=#339 id=339 data-nosnippet>339</a> }
<a href=#340 id=340 data-nosnippet>340</a>
<a href=#341 id=341 data-nosnippet>341</a> <span class="kw">if </span>metadata.get(EXTENSION_TYPE_NAME_KEY).map(String::as_str) != <span class="prelude-val">Some</span>(JsonExtensionType::NAME) {
<a href=#342 id=342 data-nosnippet>342</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>);
<a href=#343 id=343 data-nosnippet>343</a> }
<a href=#344 id=344 data-nosnippet>344</a>
<a href=#345 id=345 data-nosnippet>345</a> metadata
<a href=#346 id=346 data-nosnippet>346</a> .get(EXTENSION_TYPE_METADATA_KEY)
<a href=#347 id=347 data-nosnippet>347</a> .map(|json| {
<a href=#348 id=348 data-nosnippet>348</a> serde_json::from_str::&lt;LegacyJsonMetadata&gt;(json)
<a href=#349 id=349 data-nosnippet>349</a> .map(|x| x.json_settings)
<a href=#350 id=350 data-nosnippet>350</a> .context(<span class="kw">crate</span>::error::DeserializeSnafu { json })
<a href=#351 id=351 data-nosnippet>351</a> })
<a href=#352 id=352 data-nosnippet>352</a> .transpose()
<a href=#353 id=353 data-nosnippet>353</a> .map(Option::flatten)
<a href=#354 id=354 data-nosnippet>354</a>}
<a href=#355 id=355 data-nosnippet>355</a>
<a href=#356 id=356 data-nosnippet>356</a><span class="doccomment">/// Checks whether this field uses the JSON2 extension layout from before type hints.
<a href=#357 id=357 data-nosnippet>357</a>///
<a href=#358 id=358 data-nosnippet>358</a>/// That layout used the same `greptime.json` extension name and
<a href=#359 id=359 data-nosnippet>359</a>/// `json_structure_settings` metadata as legacy JSONB. Its structured Arrow data type is
<a href=#360 id=360 data-nosnippet>360</a>/// therefore required to distinguish JSON2 from Binary JSONB.
<a href=#361 id=361 data-nosnippet>361</a></span><span class="kw">pub fn </span>is_legacy_json2_extension_type&lt;T: AsRef&lt;Field&gt;&gt;(field: T) -&gt; bool {
<a href=#362 id=362 data-nosnippet>362</a> <span class="kw">let </span>field = field.as_ref();
<a href=#363 id=363 data-nosnippet>363</a> <span class="kw">if </span>field.extension_type_name() != <span class="prelude-val">Some</span>(JsonExtensionType::NAME)
<a href=#364 id=364 data-nosnippet>364</a> || !<span class="macro">matches!</span>(field.data_type(), DataType::Struct(<span class="kw">_</span>))
<a href=#365 id=365 data-nosnippet>365</a> {
<a href=#366 id=366 data-nosnippet>366</a> <span class="kw">return </span><span class="bool-val">false</span>;
<a href=#367 id=367 data-nosnippet>367</a> }
<a href=#368 id=368 data-nosnippet>368</a>
<a href=#369 id=369 data-nosnippet>369</a> field
<a href=#370 id=370 data-nosnippet>370</a> .metadata()
<a href=#371 id=371 data-nosnippet>371</a> .get(EXTENSION_TYPE_METADATA_KEY)
<a href=#372 id=372 data-nosnippet>372</a> .and_then(|json| serde_json::from_str::&lt;serde_json::Value&gt;(json).ok())
<a href=#373 id=373 data-nosnippet>373</a> .is_some_and(|metadata| metadata.get(LEGACY_JSON_STRUCTURE_SETTINGS_KEY).is_some())
<a href=#374 id=374 data-nosnippet>374</a>}
<a href=#375 id=375 data-nosnippet>375</a>
<a href=#376 id=376 data-nosnippet>376</a><span class="doccomment">/// Check if this field is a JSON2 extension type.
<a href=#377 id=377 data-nosnippet>377</a>///
<a href=#378 id=378 data-nosnippet>378</a>/// New schemas use [`Json2ExtensionType`]. For compatibility, old fields using
<a href=#379 id=379 data-nosnippet>379</a>/// [`JsonExtensionType`] with JSON settings or the pre-type-hint structured layout are also
<a href=#380 id=380 data-nosnippet>380</a>/// recognized as JSON2.
<a href=#381 id=381 data-nosnippet>381</a></span><span class="kw">pub fn </span>is_json2_extension_type&lt;T: AsRef&lt;Field&gt;&gt;(field: T) -&gt; bool {
<a href=#382 id=382 data-nosnippet>382</a> <span class="kw">let </span>field = field.as_ref();
<a href=#383 id=383 data-nosnippet>383</a> field.extension_type_name() == <span class="prelude-val">Some</span>(Json2ExtensionType::NAME)
<a href=#384 id=384 data-nosnippet>384</a> || parse_legacy_json2_settings(field.metadata()).is_ok_and(|x| x.is_some())
<a href=#385 id=385 data-nosnippet>385</a> || is_legacy_json2_extension_type(field)
<a href=#386 id=386 data-nosnippet>386</a>}
<a href=#387 id=387 data-nosnippet>387</a>
<a href=#388 id=388 data-nosnippet>388</a><span class="attr">#[cfg(test)]
<a href=#389 id=389 data-nosnippet>389</a></span><span class="kw">mod </span>tests {
<a href=#390 id=390 data-nosnippet>390</a> <span class="kw">use </span>std::collections::HashMap;
<a href=#391 id=391 data-nosnippet>391</a>
<a href=#392 id=392 data-nosnippet>392</a> <span class="kw">use </span>arrow_schema::extension::{EXTENSION_TYPE_METADATA_KEY, EXTENSION_TYPE_NAME_KEY};
<a href=#393 id=393 data-nosnippet>393</a> <span class="kw">use </span>arrow_schema::{Field, Fields};
<a href=#394 id=394 data-nosnippet>394</a>
<a href=#395 id=395 data-nosnippet>395</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#396 id=396 data-nosnippet>396</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::json::variant::variant_field;
<a href=#397 id=397 data-nosnippet>397</a>
<a href=#398 id=398 data-nosnippet>398</a> <span class="attr">#[test]
<a href=#399 id=399 data-nosnippet>399</a> </span><span class="kw">fn </span>test_json2_extension_type_detection() {
<a href=#400 id=400 data-nosnippet>400</a> <span class="kw">let </span>extension = Json2ExtensionType::new(Arc::new(JsonMetadata::default()));
<a href=#401 id=401 data-nosnippet>401</a> <span class="kw">let </span>json2 = Field::new(<span class="string">"j"</span>, DataType::Struct(Fields::empty()), <span class="bool-val">true</span>)
<a href=#402 id=402 data-nosnippet>402</a> .with_extension_type(extension.clone());
<a href=#403 id=403 data-nosnippet>403</a> <span class="comment">// "projection" is the special hack for selecting the whole column of json2
<a href=#404 id=404 data-nosnippet>404</a> </span><span class="kw">let </span>projection = Field::new(<span class="string">"j"</span>, DataType::Binary, <span class="bool-val">true</span>).with_extension_type(extension);
<a href=#405 id=405 data-nosnippet>405</a> <span class="kw">let </span>legacy_json2 = Field::new(<span class="string">"j"</span>, DataType::Struct(Fields::empty()), <span class="bool-val">true</span>).with_metadata(
<a href=#406 id=406 data-nosnippet>406</a> HashMap::from([
<a href=#407 id=407 data-nosnippet>407</a> (
<a href=#408 id=408 data-nosnippet>408</a> EXTENSION_TYPE_NAME_KEY.to_string(),
<a href=#409 id=409 data-nosnippet>409</a> JsonExtensionType::NAME.to_string(),
<a href=#410 id=410 data-nosnippet>410</a> ),
<a href=#411 id=411 data-nosnippet>411</a> (
<a href=#412 id=412 data-nosnippet>412</a> EXTENSION_TYPE_METADATA_KEY.to_string(),
<a href=#413 id=413 data-nosnippet>413</a> <span class="macro">serde_json::json!</span>({ <span class="string">"json_settings"</span>: JsonSettings::default() }).to_string(),
<a href=#414 id=414 data-nosnippet>414</a> ),
<a href=#415 id=415 data-nosnippet>415</a> ]),
<a href=#416 id=416 data-nosnippet>416</a> );
<a href=#417 id=417 data-nosnippet>417</a> <span class="comment">// Before type hints, JSON2 and JSONB shared extension metadata and were distinguished by
<a href=#418 id=418 data-nosnippet>418</a> // their physical Arrow data types.
<a href=#419 id=419 data-nosnippet>419</a> </span><span class="kw">let </span>legacy_structure_metadata = HashMap::from([
<a href=#420 id=420 data-nosnippet>420</a> (
<a href=#421 id=421 data-nosnippet>421</a> EXTENSION_TYPE_NAME_KEY.to_string(),
<a href=#422 id=422 data-nosnippet>422</a> JsonExtensionType::NAME.to_string(),
<a href=#423 id=423 data-nosnippet>423</a> ),
<a href=#424 id=424 data-nosnippet>424</a> (
<a href=#425 id=425 data-nosnippet>425</a> EXTENSION_TYPE_METADATA_KEY.to_string(),
<a href=#426 id=426 data-nosnippet>426</a> <span class="macro">serde_json::json!</span>({
<a href=#427 id=427 data-nosnippet>427</a> (LEGACY_JSON_STRUCTURE_SETTINGS_KEY): { <span class="string">"Structured"</span>: null }
<a href=#428 id=428 data-nosnippet>428</a> })
<a href=#429 id=429 data-nosnippet>429</a> .to_string(),
<a href=#430 id=430 data-nosnippet>430</a> ),
<a href=#431 id=431 data-nosnippet>431</a> ]);
<a href=#432 id=432 data-nosnippet>432</a> <span class="kw">let </span>pre_type_hint_json2 = Field::new(<span class="string">"j"</span>, DataType::Struct(Fields::empty()), <span class="bool-val">true</span>)
<a href=#433 id=433 data-nosnippet>433</a> .with_metadata(legacy_structure_metadata.clone());
<a href=#434 id=434 data-nosnippet>434</a> <span class="kw">let </span>legacy_jsonb =
<a href=#435 id=435 data-nosnippet>435</a> Field::new(<span class="string">"j"</span>, DataType::Binary, <span class="bool-val">true</span>).with_metadata(legacy_structure_metadata);
<a href=#436 id=436 data-nosnippet>436</a>
<a href=#437 id=437 data-nosnippet>437</a> <span class="macro">assert!</span>(is_json2_extension_type(<span class="kw-2">&amp;</span>json2));
<a href=#438 id=438 data-nosnippet>438</a> <span class="macro">assert!</span>(is_json2_extension_type(<span class="kw-2">&amp;</span>projection));
<a href=#439 id=439 data-nosnippet>439</a> <span class="macro">assert!</span>(is_json2_extension_type(<span class="kw-2">&amp;</span>legacy_json2));
<a href=#440 id=440 data-nosnippet>440</a> <span class="macro">assert!</span>(is_legacy_json2_extension_type(<span class="kw-2">&amp;</span>pre_type_hint_json2));
<a href=#441 id=441 data-nosnippet>441</a> <span class="macro">assert!</span>(is_json2_extension_type(<span class="kw-2">&amp;</span>pre_type_hint_json2));
<a href=#442 id=442 data-nosnippet>442</a> <span class="macro">assert_eq!</span>(
<a href=#443 id=443 data-nosnippet>443</a> <span class="prelude-val">Some</span>(JsonSettings::default()),
<a href=#444 id=444 data-nosnippet>444</a> parse_legacy_json2_settings(legacy_json2.metadata()).unwrap()
<a href=#445 id=445 data-nosnippet>445</a> );
<a href=#446 id=446 data-nosnippet>446</a> <span class="macro">assert!</span>(!is_legacy_json2_extension_type(<span class="kw-2">&amp;</span>legacy_jsonb));
<a href=#447 id=447 data-nosnippet>447</a> <span class="macro">assert!</span>(!is_json2_extension_type(<span class="kw-2">&amp;</span>legacy_jsonb));
<a href=#448 id=448 data-nosnippet>448</a> <span class="macro">assert!</span>(JsonExtensionType::try_new(<span class="kw-2">&amp;</span>DataType::Binary, ()).is_ok());
<a href=#449 id=449 data-nosnippet>449</a> <span class="macro">assert!</span>(JsonExtensionType::try_new(<span class="kw-2">&amp;</span>DataType::Null, ()).is_ok());
<a href=#450 id=450 data-nosnippet>450</a> <span class="macro">assert!</span>(JsonExtensionType::try_new(<span class="kw-2">&amp;</span>DataType::Struct(Fields::empty()), ()).is_err());
<a href=#451 id=451 data-nosnippet>451</a> }
<a href=#452 id=452 data-nosnippet>452</a>
<a href=#453 id=453 data-nosnippet>453</a> <span class="attr">#[test]
<a href=#454 id=454 data-nosnippet>454</a> </span><span class="kw">fn </span>test_json_metadata_layout_version_compatibility() -&gt; serde_json::Result&lt;()&gt; {
<a href=#455 id=455 data-nosnippet>455</a> <span class="kw">let </span>legacy: JsonMetadata = serde_json::from_str(<span class="string">r#"{"json_settings":{}}"#</span>)<span class="question-mark">?</span>;
<a href=#456 id=456 data-nosnippet>456</a> <span class="macro">assert!</span>(!legacy.is_version_2());
<a href=#457 id=457 data-nosnippet>457</a>
<a href=#458 id=458 data-nosnippet>458</a> <span class="kw">let </span>metadata = JsonMetadata::new(JsonSettings::default());
<a href=#459 id=459 data-nosnippet>459</a> <span class="macro">assert!</span>(metadata.is_version_2());
<a href=#460 id=460 data-nosnippet>460</a> <span class="kw">let </span>serialized = serde_json::to_string(<span class="kw-2">&amp;</span>metadata)<span class="question-mark">?</span>;
<a href=#461 id=461 data-nosnippet>461</a> <span class="kw">let </span>deserialized: JsonMetadata = serde_json::from_str(<span class="kw-2">&amp;</span>serialized)<span class="question-mark">?</span>;
<a href=#462 id=462 data-nosnippet>462</a> <span class="macro">assert!</span>(deserialized.is_version_2());
<a href=#463 id=463 data-nosnippet>463</a> <span class="macro">assert_eq!</span>(deserialized, metadata);
<a href=#464 id=464 data-nosnippet>464</a> <span class="prelude-val">Ok</span>(())
<a href=#465 id=465 data-nosnippet>465</a> }
<a href=#466 id=466 data-nosnippet>466</a>
<a href=#467 id=467 data-nosnippet>467</a> <span class="attr">#[test]
<a href=#468 id=468 data-nosnippet>468</a> </span><span class="kw">fn </span>test_json2_metadata_with_updated_settings_upgrades_layout() -&gt; <span class="kw">crate</span>::error::Result&lt;()&gt; {
<a href=#469 id=469 data-nosnippet>469</a> <span class="kw">for </span>(name, json) <span class="kw">in </span>[
<a href=#470 id=470 data-nosnippet>470</a> (JsonExtensionType::NAME, <span class="string">r#"{"json_settings":{}}"#</span>),
<a href=#471 id=471 data-nosnippet>471</a> (Json2ExtensionType::NAME, <span class="string">r#"{"json_settings":{}}"#</span>),
<a href=#472 id=472 data-nosnippet>472</a> (
<a href=#473 id=473 data-nosnippet>473</a> Json2ExtensionType::NAME,
<a href=#474 id=474 data-nosnippet>474</a> <span class="string">r#"{"json_settings":{},"layout_version":2}"#</span>,
<a href=#475 id=475 data-nosnippet>475</a> ),
<a href=#476 id=476 data-nosnippet>476</a> ] {
<a href=#477 id=477 data-nosnippet>477</a> <span class="kw">let </span>metadata = HashMap::from([
<a href=#478 id=478 data-nosnippet>478</a> (EXTENSION_TYPE_NAME_KEY.to_string(), name.to_string()),
<a href=#479 id=479 data-nosnippet>479</a> (EXTENSION_TYPE_METADATA_KEY.to_string(), json.to_string()),
<a href=#480 id=480 data-nosnippet>480</a> (<span class="string">"other"</span>.to_string(), <span class="string">"kept"</span>.to_string()),
<a href=#481 id=481 data-nosnippet>481</a> ]);
<a href=#482 id=482 data-nosnippet>482</a> <span class="kw">let </span>settings = JsonSettings::try_new(<span class="macro">vec!</span>[], <span class="prelude-val">Some</span>(<span class="number">10</span>))<span class="question-mark">?</span>;
<a href=#483 id=483 data-nosnippet>483</a> <span class="kw">let </span>updated = json2_metadata_with_updated_settings(<span class="kw-2">&amp;</span>metadata, settings.clone())<span class="question-mark">?</span>;
<a href=#484 id=484 data-nosnippet>484</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="string">"kept"</span>), updated.get(<span class="string">"other"</span>).map(String::as_str));
<a href=#485 id=485 data-nosnippet>485</a> <span class="macro">assert_eq!</span>(
<a href=#486 id=486 data-nosnippet>486</a> <span class="prelude-val">Some</span>(Json2ExtensionType::NAME),
<a href=#487 id=487 data-nosnippet>487</a> updated.get(EXTENSION_TYPE_NAME_KEY).map(String::as_str)
<a href=#488 id=488 data-nosnippet>488</a> );
<a href=#489 id=489 data-nosnippet>489</a> <span class="kw">let </span>json_metadata: JsonMetadata =
<a href=#490 id=490 data-nosnippet>490</a> serde_json::from_str(updated.get(EXTENSION_TYPE_METADATA_KEY).unwrap()).unwrap();
<a href=#491 id=491 data-nosnippet>491</a> <span class="macro">assert_eq!</span>(JsonMetadata::new(settings), json_metadata);
<a href=#492 id=492 data-nosnippet>492</a> }
<a href=#493 id=493 data-nosnippet>493</a> <span class="prelude-val">Ok</span>(())
<a href=#494 id=494 data-nosnippet>494</a> }
<a href=#495 id=495 data-nosnippet>495</a>
<a href=#496 id=496 data-nosnippet>496</a> <span class="attr">#[test]
<a href=#497 id=497 data-nosnippet>497</a> </span><span class="kw">fn </span>test_parse_json2_physical_layout() -&gt; <span class="kw">crate</span>::error::Result&lt;()&gt; {
<a href=#498 id=498 data-nosnippet>498</a> <span class="kw">let </span>legacy = Field::new(<span class="string">"data"</span>, DataType::Struct(Fields::empty()), <span class="bool-val">true</span>)
<a href=#499 id=499 data-nosnippet>499</a> .with_extension_type(Json2ExtensionType::new(Arc::new(JsonMetadata::new_v1(
<a href=#500 id=500 data-nosnippet>500</a> JsonSettings::default(),
<a href=#501 id=501 data-nosnippet>501</a> ))));
<a href=#502 id=502 data-nosnippet>502</a> <span class="macro">assert!</span>(!Json2PhysicalLayout::try_from_root(<span class="kw-2">&amp;</span>legacy)<span class="question-mark">?</span>.is_version_2());
<a href=#503 id=503 data-nosnippet>503</a>
<a href=#504 id=504 data-nosnippet>504</a> <span class="kw">let </span>v2 = Field::new(
<a href=#505 id=505 data-nosnippet>505</a> <span class="string">"data"</span>,
<a href=#506 id=506 data-nosnippet>506</a> DataType::Struct(
<a href=#507 id=507 data-nosnippet>507</a> <span class="macro">vec!</span>[
<a href=#508 id=508 data-nosnippet>508</a> Arc::new(variant_field(JSON2_REMAINDER_FIELD_NAME, <span class="bool-val">true</span>)),
<a href=#509 id=509 data-nosnippet>509</a> Arc::new(Field::new(<span class="string">"count"</span>, DataType::Int64, <span class="bool-val">true</span>)),
<a href=#510 id=510 data-nosnippet>510</a> ]
<a href=#511 id=511 data-nosnippet>511</a> .into(),
<a href=#512 id=512 data-nosnippet>512</a> ),
<a href=#513 id=513 data-nosnippet>513</a> <span class="bool-val">true</span>,
<a href=#514 id=514 data-nosnippet>514</a> )
<a href=#515 id=515 data-nosnippet>515</a> .with_extension_type(Json2ExtensionType::new(Arc::new(JsonMetadata::new(
<a href=#516 id=516 data-nosnippet>516</a> JsonSettings::default(),
<a href=#517 id=517 data-nosnippet>517</a> ))));
<a href=#518 id=518 data-nosnippet>518</a> <span class="macro">assert!</span>(Json2PhysicalLayout::try_from_root(<span class="kw-2">&amp;</span>v2)<span class="question-mark">?</span>.is_version_2());
<a href=#519 id=519 data-nosnippet>519</a> <span class="kw">let </span>remainder = json2_remainder_field(<span class="kw-2">&amp;</span>v2)<span class="question-mark">?</span>.unwrap();
<a href=#520 id=520 data-nosnippet>520</a> <span class="macro">assert_eq!</span>(JSON2_REMAINDER_FIELD_NAME, remainder.name());
<a href=#521 id=521 data-nosnippet>521</a> <span class="prelude-val">Ok</span>(())
<a href=#522 id=522 data-nosnippet>522</a> }
<a href=#523 id=523 data-nosnippet>523</a>
<a href=#524 id=524 data-nosnippet>524</a> <span class="attr">#[test]
<a href=#525 id=525 data-nosnippet>525</a> </span><span class="kw">fn </span>test_reject_invalid_json2_physical_layout() {
<a href=#526 id=526 data-nosnippet>526</a> <span class="kw">let </span>field = Field::new(<span class="string">"data"</span>, DataType::Struct(Fields::empty()), <span class="bool-val">true</span>);
<a href=#527 id=527 data-nosnippet>527</a> <span class="macro">assert!</span>(Json2PhysicalLayout::try_from_root(<span class="kw-2">&amp;</span>field).is_err());
<a href=#528 id=528 data-nosnippet>528</a>
<a href=#529 id=529 data-nosnippet>529</a> <span class="kw">let </span>metadata =
<a href=#530 id=530 data-nosnippet>530</a> Json2ExtensionType::new(Arc::new(JsonMetadata::new(JsonSettings::default())));
<a href=#531 id=531 data-nosnippet>531</a> <span class="kw">let </span>missing = Field::new(<span class="string">"data"</span>, DataType::Struct(Fields::empty()), <span class="bool-val">true</span>)
<a href=#532 id=532 data-nosnippet>532</a> .with_extension_type(metadata.clone());
<a href=#533 id=533 data-nosnippet>533</a> <span class="macro">assert!</span>(json2_remainder_field(<span class="kw-2">&amp;</span>missing).is_ok_and(|x| x.is_none()));
<a href=#534 id=534 data-nosnippet>534</a>
<a href=#535 id=535 data-nosnippet>535</a> <span class="kw">let </span>invalid = Field::new(
<a href=#536 id=536 data-nosnippet>536</a> <span class="string">"data"</span>,
<a href=#537 id=537 data-nosnippet>537</a> DataType::Struct(
<a href=#538 id=538 data-nosnippet>538</a> <span class="macro">vec!</span>[Arc::new(Field::new(
<a href=#539 id=539 data-nosnippet>539</a> JSON2_REMAINDER_FIELD_NAME,
<a href=#540 id=540 data-nosnippet>540</a> DataType::Binary,
<a href=#541 id=541 data-nosnippet>541</a> <span class="bool-val">true</span>,
<a href=#542 id=542 data-nosnippet>542</a> ))]
<a href=#543 id=543 data-nosnippet>543</a> .into(),
<a href=#544 id=544 data-nosnippet>544</a> ),
<a href=#545 id=545 data-nosnippet>545</a> <span class="bool-val">true</span>,
<a href=#546 id=546 data-nosnippet>546</a> )
<a href=#547 id=547 data-nosnippet>547</a> .with_extension_type(metadata);
<a href=#548 id=548 data-nosnippet>548</a> <span class="macro">assert!</span>(json2_remainder_field(<span class="kw-2">&amp;</span>invalid).is_err());
<a href=#549 id=549 data-nosnippet>549</a>
<a href=#550 id=550 data-nosnippet>550</a> <span class="kw">let </span>future = Field::new(<span class="string">"data"</span>, DataType::Struct(Fields::empty()), <span class="bool-val">true</span>)
<a href=#551 id=551 data-nosnippet>551</a> .with_extension_type(Json2ExtensionType::new(Arc::new(JsonMetadata {
<a href=#552 id=552 data-nosnippet>552</a> json_settings: JsonSettings::default(),
<a href=#553 id=553 data-nosnippet>553</a> layout_version: <span class="prelude-val">Some</span>(JSON2_LAYOUT_V2 + <span class="number">1</span>),
<a href=#554 id=554 data-nosnippet>554</a> })));
<a href=#555 id=555 data-nosnippet>555</a> <span class="macro">assert!</span>(Json2PhysicalLayout::try_from_root(<span class="kw-2">&amp;</span>future).is_err());
<a href=#556 id=556 data-nosnippet>556</a> }
<a href=#557 id=557 data-nosnippet>557</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/interval.rs`."><title>interval.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>interval.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>arrow::datatypes::{
<a href=#16 id=16 data-nosnippet>16</a> IntervalDayTime <span class="kw">as </span>ArrowIntervalDayTime, IntervalMonthDayNano <span class="kw">as </span>ArrowIntervalMonthDayNano,
<a href=#17 id=17 data-nosnippet>17</a>};
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>common_time::{IntervalDayTime, IntervalMonthDayNano, IntervalYearMonth};
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>paste::paste;
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::prelude::Scalar;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::scalars::ScalarRef;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::types::{
<a href=#24 id=24 data-nosnippet>24</a> IntervalDayTimeType, IntervalMonthDayNanoType, IntervalYearMonthType, WrapperType,
<a href=#25 id=25 data-nosnippet>25</a>};
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{IntervalDayTimeVector, IntervalMonthDayNanoVector, IntervalYearMonthVector};
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="macro">macro_rules!</span> define_interval_with_unit {
<a href=#29 id=29 data-nosnippet>29</a> (<span class="macro-nonterminal">$unit</span>: ident, <span class="macro-nonterminal">$native_ty</span>: ty) =&gt; {
<a href=#30 id=30 data-nosnippet>30</a> <span class="macro">paste!</span> {
<a href=#31 id=31 data-nosnippet>31</a> <span class="kw">impl </span>Scalar <span class="kw">for </span>[&lt;Interval <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#32 id=32 data-nosnippet>32</a> <span class="kw">type </span>VectorType = [&lt;Interval <span class="macro-nonterminal">$unit </span>Vector&gt;];
<a href=#33 id=33 data-nosnippet>33</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = [&lt;Interval <span class="macro-nonterminal">$unit</span>&gt;];
<a href=#34 id=34 data-nosnippet>34</a>
<a href=#35 id=35 data-nosnippet>35</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'_</span>&gt; {
<a href=#36 id=36 data-nosnippet>36</a> <span class="kw-2">*</span><span class="self">self
<a href=#37 id=37 data-nosnippet>37</a> </span>}
<a href=#38 id=38 data-nosnippet>38</a>
<a href=#39 id=39 data-nosnippet>39</a> <span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(
<a href=#40 id=40 data-nosnippet>40</a> long: <span class="self">Self</span>::RefType&lt;<span class="lifetime">'long</span>&gt;,
<a href=#41 id=41 data-nosnippet>41</a> ) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'short</span>&gt; {
<a href=#42 id=42 data-nosnippet>42</a> long
<a href=#43 id=43 data-nosnippet>43</a> }
<a href=#44 id=44 data-nosnippet>44</a> }
<a href=#45 id=45 data-nosnippet>45</a>
<a href=#46 id=46 data-nosnippet>46</a> <span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; ScalarRef&lt;<span class="lifetime">'a</span>&gt; <span class="kw">for </span>[&lt;Interval <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#47 id=47 data-nosnippet>47</a> <span class="kw">type </span>ScalarType = [&lt;Interval <span class="macro-nonterminal">$unit</span>&gt;];
<a href=#48 id=48 data-nosnippet>48</a>
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::ScalarType {
<a href=#50 id=50 data-nosnippet>50</a> <span class="kw-2">*</span><span class="self">self
<a href=#51 id=51 data-nosnippet>51</a> </span>}
<a href=#52 id=52 data-nosnippet>52</a> }
<a href=#53 id=53 data-nosnippet>53</a>
<a href=#54 id=54 data-nosnippet>54</a> <span class="kw">impl </span>WrapperType <span class="kw">for </span>[&lt;Interval <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#55 id=55 data-nosnippet>55</a> <span class="kw">type </span>LogicalType = [&lt;Interval <span class="macro-nonterminal">$unit </span>Type&gt;];
<a href=#56 id=56 data-nosnippet>56</a> <span class="kw">type </span>Native = <span class="macro-nonterminal">$native_ty</span>;
<a href=#57 id=57 data-nosnippet>57</a>
<a href=#58 id=58 data-nosnippet>58</a> <span class="kw">fn </span>from_native(value: <span class="self">Self</span>::Native) -&gt; <span class="self">Self </span>{
<a href=#59 id=59 data-nosnippet>59</a> <span class="self">Self</span>::from(value)
<a href=#60 id=60 data-nosnippet>60</a> }
<a href=#61 id=61 data-nosnippet>61</a>
<a href=#62 id=62 data-nosnippet>62</a> <span class="kw">fn </span>into_native(<span class="self">self</span>) -&gt; <span class="self">Self</span>::Native {
<a href=#63 id=63 data-nosnippet>63</a> <span class="self">self</span>.into()
<a href=#64 id=64 data-nosnippet>64</a> }
<a href=#65 id=65 data-nosnippet>65</a> }
<a href=#66 id=66 data-nosnippet>66</a> }
<a href=#67 id=67 data-nosnippet>67</a> };
<a href=#68 id=68 data-nosnippet>68</a>}
<a href=#69 id=69 data-nosnippet>69</a>
<a href=#70 id=70 data-nosnippet>70</a><span class="macro">define_interval_with_unit!</span>(YearMonth, i32);
<a href=#71 id=71 data-nosnippet>71</a><span class="macro">define_interval_with_unit!</span>(DayTime, ArrowIntervalDayTime);
<a href=#72 id=72 data-nosnippet>72</a><span class="macro">define_interval_with_unit!</span>(MonthDayNano, ArrowIntervalMonthDayNano);
<a href=#73 id=73 data-nosnippet>73</a>
<a href=#74 id=74 data-nosnippet>74</a><span class="attr">#[cfg(test)]
<a href=#75 id=75 data-nosnippet>75</a></span><span class="kw">mod </span>tests {
<a href=#76 id=76 data-nosnippet>76</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#77 id=77 data-nosnippet>77</a>
<a href=#78 id=78 data-nosnippet>78</a> <span class="attr">#[test]
<a href=#79 id=79 data-nosnippet>79</a> </span><span class="kw">fn </span>test_interval_scalar() {
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">let </span>interval = IntervalYearMonth::from(<span class="number">1000</span>);
<a href=#81 id=81 data-nosnippet>81</a> <span class="macro">assert_eq!</span>(interval, interval.as_scalar_ref());
<a href=#82 id=82 data-nosnippet>82</a> <span class="macro">assert_eq!</span>(interval, interval.to_owned_scalar());
<a href=#83 id=83 data-nosnippet>83</a> <span class="macro">assert_eq!</span>(<span class="number">1000</span>, interval.into_native());
<a href=#84 id=84 data-nosnippet>84</a>
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">let </span>interval = IntervalDayTime::from(<span class="number">1000</span>);
<a href=#86 id=86 data-nosnippet>86</a> <span class="macro">assert_eq!</span>(interval, interval.as_scalar_ref());
<a href=#87 id=87 data-nosnippet>87</a> <span class="macro">assert_eq!</span>(interval, interval.to_owned_scalar());
<a href=#88 id=88 data-nosnippet>88</a> <span class="macro">assert_eq!</span>(ArrowIntervalDayTime::from(interval), interval.into_native());
<a href=#89 id=89 data-nosnippet>89</a>
<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">let </span>interval = IntervalMonthDayNano::from(<span class="number">1000</span>);
<a href=#91 id=91 data-nosnippet>91</a> <span class="macro">assert_eq!</span>(interval, interval.as_scalar_ref());
<a href=#92 id=92 data-nosnippet>92</a> <span class="macro">assert_eq!</span>(interval, interval.to_owned_scalar());
<a href=#93 id=93 data-nosnippet>93</a> <span class="macro">assert_eq!</span>(
<a href=#94 id=94 data-nosnippet>94</a> ArrowIntervalMonthDayNano::from(interval),
<a href=#95 id=95 data-nosnippet>95</a> interval.into_native()
<a href=#96 id=96 data-nosnippet>96</a> );
<a href=#97 id=97 data-nosnippet>97</a> }
<a href=#98 id=98 data-nosnippet>98</a>
<a href=#99 id=99 data-nosnippet>99</a> <span class="attr">#[test]
<a href=#100 id=100 data-nosnippet>100</a> </span><span class="kw">fn </span>test_interval_convert_to_native_type() {
<a href=#101 id=101 data-nosnippet>101</a> <span class="kw">let </span>interval = IntervalMonthDayNano::from(<span class="number">1000</span>);
<a href=#102 id=102 data-nosnippet>102</a> <span class="kw">let </span>native_value: i128 = interval.into();
<a href=#103 id=103 data-nosnippet>103</a> <span class="macro">assert_eq!</span>(native_value, <span class="number">1000</span>);
<a href=#104 id=104 data-nosnippet>104</a>
<a href=#105 id=105 data-nosnippet>105</a> <span class="kw">let </span>interval = IntervalDayTime::from(<span class="number">1000</span>);
<a href=#106 id=106 data-nosnippet>106</a> <span class="kw">let </span>native_interval: i64 = interval.into();
<a href=#107 id=107 data-nosnippet>107</a> <span class="macro">assert_eq!</span>(native_interval, <span class="number">1000</span>);
<a href=#108 id=108 data-nosnippet>108</a>
<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">let </span>interval = IntervalYearMonth::from(<span class="number">1000</span>);
<a href=#110 id=110 data-nosnippet>110</a> <span class="kw">let </span>native_interval: i32 = interval.into();
<a href=#111 id=111 data-nosnippet>111</a> <span class="macro">assert_eq!</span>(native_interval, <span class="number">1000</span>);
<a href=#112 id=112 data-nosnippet>112</a> }
<a href=#113 id=113 data-nosnippet>113</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/lib.rs`."><title>lib.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>lib.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">pub mod </span>arrow_array;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">pub mod </span>data_type;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">pub mod </span>duration;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">pub mod </span>error;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">pub mod </span>extension;
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">pub mod </span>interval;
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">pub mod </span>json;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">pub mod </span>macros;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">pub mod </span>prelude;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">pub mod </span>scalars;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">pub mod </span>schema;
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">pub mod </span>serialize;
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">pub mod </span>time;
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">pub mod </span>timestamp;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">pub mod </span>type_id;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">pub mod </span>types;
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">pub mod </span>value;
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">pub mod </span>vectors;
<a href=#33 id=33 data-nosnippet>33</a>
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">pub use </span>arrow::{<span class="self">self</span>, compute};
<a href=#35 id=35 data-nosnippet>35</a><span class="kw">pub use </span>error::{Error, <span class="prelude-ty">Result</span>};
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/macros.rs`."><title>macros.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>macros.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="doccomment">//! Some helper macros for datatypes, copied from databend.
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a>/// Apply the macro rules to all primitive types.
<a href=#18 id=18 data-nosnippet>18</a></span><span class="attr">#[macro_export]
<a href=#19 id=19 data-nosnippet>19</a></span><span class="macro">macro_rules!</span> for_all_primitive_types {
<a href=#20 id=20 data-nosnippet>20</a> (<span class="macro-nonterminal">$macro</span>:tt $(, <span class="macro-nonterminal">$x</span>:tt)<span class="kw-2">*</span>) =&gt; {
<a href=#21 id=21 data-nosnippet>21</a> <span class="macro-nonterminal">$macro</span>! {
<a href=#22 id=22 data-nosnippet>22</a> [$(<span class="macro-nonterminal">$x</span>),<span class="kw-2">*</span>],
<a href=#23 id=23 data-nosnippet>23</a> { i8 },
<a href=#24 id=24 data-nosnippet>24</a> { i16 },
<a href=#25 id=25 data-nosnippet>25</a> { i32 },
<a href=#26 id=26 data-nosnippet>26</a> { i64 },
<a href=#27 id=27 data-nosnippet>27</a> { u8 },
<a href=#28 id=28 data-nosnippet>28</a> { u16 },
<a href=#29 id=29 data-nosnippet>29</a> { u32 },
<a href=#30 id=30 data-nosnippet>30</a> { u64 },
<a href=#31 id=31 data-nosnippet>31</a> { f32 },
<a href=#32 id=32 data-nosnippet>32</a> { f64 }
<a href=#33 id=33 data-nosnippet>33</a> }
<a href=#34 id=34 data-nosnippet>34</a> };
<a href=#35 id=35 data-nosnippet>35</a>}
<a href=#36 id=36 data-nosnippet>36</a>
<a href=#37 id=37 data-nosnippet>37</a><span class="doccomment">/// Match the logical type and apply `$body` to all primitive types and
<a href=#38 id=38 data-nosnippet>38</a>/// `nbody` to other types.
<a href=#39 id=39 data-nosnippet>39</a></span><span class="attr">#[macro_export]
<a href=#40 id=40 data-nosnippet>40</a></span><span class="macro">macro_rules!</span> with_match_primitive_type_id {
<a href=#41 id=41 data-nosnippet>41</a> (<span class="macro-nonterminal">$key_type</span>:expr, | <span class="macro-nonterminal">$_</span>:tt <span class="macro-nonterminal">$T</span>:ident | <span class="macro-nonterminal">$body</span>:tt, <span class="macro-nonterminal">$nbody</span>:tt) =&gt; {{
<a href=#42 id=42 data-nosnippet>42</a> <span class="macro">macro_rules!</span> __with_ty__ {
<a href=#43 id=43 data-nosnippet>43</a> ( <span class="macro-nonterminal">$_ $T</span>:ident ) =&gt; {
<a href=#44 id=44 data-nosnippet>44</a> <span class="macro-nonterminal">$body
<a href=#45 id=45 data-nosnippet>45</a> </span>};
<a href=#46 id=46 data-nosnippet>46</a> }
<a href=#47 id=47 data-nosnippet>47</a>
<a href=#48 id=48 data-nosnippet>48</a> <span class="kw">use </span><span class="macro-nonterminal">$crate::type_id::LogicalTypeId</span>;
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">use </span><span class="macro-nonterminal">$crate::types:</span>:{
<a href=#50 id=50 data-nosnippet>50</a> Float32Type, Float64Type, Int8Type, Int16Type, Int32Type, Int64Type, UInt8Type,
<a href=#51 id=51 data-nosnippet>51</a> UInt16Type, UInt32Type, UInt64Type,
<a href=#52 id=52 data-nosnippet>52</a> };
<a href=#53 id=53 data-nosnippet>53</a> <span class="kw">match </span><span class="macro-nonterminal">$key_type </span>{
<a href=#54 id=54 data-nosnippet>54</a> LogicalTypeId::Int8 =&gt; <span class="macro">__with_ty__!</span> { Int8Type },
<a href=#55 id=55 data-nosnippet>55</a> LogicalTypeId::Int16 =&gt; <span class="macro">__with_ty__!</span> { Int16Type },
<a href=#56 id=56 data-nosnippet>56</a> LogicalTypeId::Int32 =&gt; <span class="macro">__with_ty__!</span> { Int32Type },
<a href=#57 id=57 data-nosnippet>57</a> LogicalTypeId::Int64 =&gt; <span class="macro">__with_ty__!</span> { Int64Type },
<a href=#58 id=58 data-nosnippet>58</a> LogicalTypeId::UInt8 =&gt; <span class="macro">__with_ty__!</span> { UInt8Type },
<a href=#59 id=59 data-nosnippet>59</a> LogicalTypeId::UInt16 =&gt; <span class="macro">__with_ty__!</span> { UInt16Type },
<a href=#60 id=60 data-nosnippet>60</a> LogicalTypeId::UInt32 =&gt; <span class="macro">__with_ty__!</span> { UInt32Type },
<a href=#61 id=61 data-nosnippet>61</a> LogicalTypeId::UInt64 =&gt; <span class="macro">__with_ty__!</span> { UInt64Type },
<a href=#62 id=62 data-nosnippet>62</a> LogicalTypeId::Float32 =&gt; <span class="macro">__with_ty__!</span> { Float32Type },
<a href=#63 id=63 data-nosnippet>63</a> LogicalTypeId::Float64 =&gt; <span class="macro">__with_ty__!</span> { Float64Type },
<a href=#64 id=64 data-nosnippet>64</a>
<a href=#65 id=65 data-nosnippet>65</a> <span class="kw">_ </span>=&gt; <span class="macro-nonterminal">$nbody</span>,
<a href=#66 id=66 data-nosnippet>66</a> }
<a href=#67 id=67 data-nosnippet>67</a> }};
<a href=#68 id=68 data-nosnippet>68</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/prelude.rs`."><title>prelude.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>prelude.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">pub use </span><span class="kw">crate</span>::data_type::{ConcreteDataType, DataType, DataTypeRef};
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">pub use </span><span class="kw">crate</span>::scalars::{Scalar, ScalarRef, ScalarVector, ScalarVectorBuilder};
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">pub use </span><span class="kw">crate</span>::type_id::LogicalTypeId;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">pub use </span><span class="kw">crate</span>::types::{LogicalPrimitiveType, WrapperType};
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">pub use </span><span class="kw">crate</span>::value::{Value, ValueRef};
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">pub use </span><span class="kw">crate</span>::vectors::{MutableVector, Validity, Vector, VectorRef};
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/scalars.rs`."><title>scalars.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>scalars.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::any::Any;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>common_decimal::Decimal128;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>common_time::Date;
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span><span class="kw">crate</span>::types::{
<a href=#21 id=21 data-nosnippet>21</a> Float32Type, Float64Type, Int8Type, Int16Type, Int32Type, Int64Type, UInt8Type, UInt16Type,
<a href=#22 id=22 data-nosnippet>22</a> UInt32Type, UInt64Type,
<a href=#23 id=23 data-nosnippet>23</a>};
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::value::{ListValue, ListValueRef, StructValue, StructValueRef, Value};
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#26 id=26 data-nosnippet>26</a> BinaryVector, BooleanVector, DateVector, Decimal128Vector, ListVector, MutableVector,
<a href=#27 id=27 data-nosnippet>27</a> NullVector, PrimitiveVector, StringVector, StructVector, Vector,
<a href=#28 id=28 data-nosnippet>28</a>};
<a href=#29 id=29 data-nosnippet>29</a>
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">fn </span>get_iter_capacity&lt;T, I: Iterator&lt;Item = T&gt;&gt;(iter: <span class="kw-2">&amp;</span>I) -&gt; usize {
<a href=#31 id=31 data-nosnippet>31</a> <span class="kw">match </span>iter.size_hint() {
<a href=#32 id=32 data-nosnippet>32</a> (_lower, <span class="prelude-val">Some</span>(upper)) =&gt; upper,
<a href=#33 id=33 data-nosnippet>33</a> (<span class="number">0</span>, <span class="prelude-val">None</span>) =&gt; <span class="number">1024</span>,
<a href=#34 id=34 data-nosnippet>34</a> (lower, <span class="prelude-val">None</span>) =&gt; lower,
<a href=#35 id=35 data-nosnippet>35</a> }
<a href=#36 id=36 data-nosnippet>36</a>}
<a href=#37 id=37 data-nosnippet>37</a>
<a href=#38 id=38 data-nosnippet>38</a><span class="doccomment">/// Owned scalar value
<a href=#39 id=39 data-nosnippet>39</a>/// e.g. primitive types, bool, `Vec&lt;u8&gt;` ...
<a href=#40 id=40 data-nosnippet>40</a></span><span class="kw">pub trait </span>Scalar: <span class="lifetime">'static </span>+ Sized + Default + Any
<a href=#41 id=41 data-nosnippet>41</a><span class="kw">where
<a href=#42 id=42 data-nosnippet>42</a> for</span>&lt;<span class="lifetime">'a</span>&gt; <span class="self">Self</span>::VectorType: ScalarVector&lt;RefItem&lt;<span class="lifetime">'a</span>&gt; = <span class="self">Self</span>::RefType&lt;<span class="lifetime">'a</span>&gt;&gt;,
<a href=#43 id=43 data-nosnippet>43</a>{
<a href=#44 id=44 data-nosnippet>44</a> <span class="kw">type </span>VectorType: ScalarVector&lt;OwnedItem = <span class="self">Self</span>&gt;;
<a href=#45 id=45 data-nosnippet>45</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt;: ScalarRef&lt;<span class="lifetime">'a</span>, ScalarType = <span class="self">Self</span>&gt;
<a href=#46 id=46 data-nosnippet>46</a> <span class="kw">where
<a href=#47 id=47 data-nosnippet>47</a> </span><span class="self">Self</span>: <span class="lifetime">'a</span>;
<a href=#48 id=48 data-nosnippet>48</a> <span class="doccomment">/// Get a reference of the current value.
<a href=#49 id=49 data-nosnippet>49</a> </span><span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'_</span>&gt;;
<a href=#50 id=50 data-nosnippet>50</a>
<a href=#51 id=51 data-nosnippet>51</a> <span class="doccomment">/// Upcast GAT type's lifetime.
<a href=#52 id=52 data-nosnippet>52</a> </span><span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(long: <span class="self">Self</span>::RefType&lt;<span class="lifetime">'long</span>&gt;) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'short</span>&gt;;
<a href=#53 id=53 data-nosnippet>53</a>}
<a href=#54 id=54 data-nosnippet>54</a>
<a href=#55 id=55 data-nosnippet>55</a><span class="kw">pub trait </span>ScalarRef&lt;<span class="lifetime">'a</span>&gt;: std::fmt::Debug + Clone + Send + <span class="lifetime">'a </span>{
<a href=#56 id=56 data-nosnippet>56</a> <span class="doccomment">/// The corresponding [`Scalar`] type.
<a href=#57 id=57 data-nosnippet>57</a> </span><span class="kw">type </span>ScalarType: Scalar&lt;RefType&lt;<span class="lifetime">'a</span>&gt; = <span class="self">Self</span>&gt;;
<a href=#58 id=58 data-nosnippet>58</a>
<a href=#59 id=59 data-nosnippet>59</a> <span class="doccomment">/// Convert the reference into an owned value.
<a href=#60 id=60 data-nosnippet>60</a> </span><span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::ScalarType;
<a href=#61 id=61 data-nosnippet>61</a>}
<a href=#62 id=62 data-nosnippet>62</a>
<a href=#63 id=63 data-nosnippet>63</a><span class="doccomment">/// A sub trait of Vector to add scalar operation support.
<a href=#64 id=64 data-nosnippet>64</a></span><span class="comment">// This implementation refers to Datebend's [ScalarColumn](https://github.com/datafuselabs/databend/blob/main/common/datavalues/src/scalars/type_.rs)
<a href=#65 id=65 data-nosnippet>65</a>// and skyzh's [type-exercise-in-rust](https://github.com/skyzh/type-exercise-in-rust).
<a href=#66 id=66 data-nosnippet>66</a></span><span class="kw">pub trait </span>ScalarVector: Vector + Send + Sync + Sized + <span class="lifetime">'static
<a href=#67 id=67 data-nosnippet>67</a></span><span class="kw">where
<a href=#68 id=68 data-nosnippet>68</a> for</span>&lt;<span class="lifetime">'a</span>&gt; <span class="self">Self</span>::OwnedItem: Scalar&lt;RefType&lt;<span class="lifetime">'a</span>&gt; = <span class="self">Self</span>::RefItem&lt;<span class="lifetime">'a</span>&gt;&gt;,
<a href=#69 id=69 data-nosnippet>69</a>{
<a href=#70 id=70 data-nosnippet>70</a> <span class="kw">type </span>OwnedItem: Scalar&lt;VectorType = <span class="self">Self</span>&gt;;
<a href=#71 id=71 data-nosnippet>71</a> <span class="doccomment">/// The reference item of this vector.
<a href=#72 id=72 data-nosnippet>72</a> </span><span class="kw">type </span>RefItem&lt;<span class="lifetime">'a</span>&gt;: ScalarRef&lt;<span class="lifetime">'a</span>, ScalarType = <span class="self">Self</span>::OwnedItem&gt;
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">where
<a href=#74 id=74 data-nosnippet>74</a> </span><span class="self">Self</span>: <span class="lifetime">'a</span>;
<a href=#75 id=75 data-nosnippet>75</a>
<a href=#76 id=76 data-nosnippet>76</a> <span class="doccomment">/// Iterator type of this vector.
<a href=#77 id=77 data-nosnippet>77</a> </span><span class="kw">type </span>Iter&lt;<span class="lifetime">'a</span>&gt;: Iterator&lt;Item = <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::RefItem&lt;<span class="lifetime">'a</span>&gt;&gt;&gt;
<a href=#78 id=78 data-nosnippet>78</a> <span class="kw">where
<a href=#79 id=79 data-nosnippet>79</a> </span><span class="self">Self</span>: <span class="lifetime">'a</span>;
<a href=#80 id=80 data-nosnippet>80</a>
<a href=#81 id=81 data-nosnippet>81</a> <span class="doccomment">/// Builder type to build this vector.
<a href=#82 id=82 data-nosnippet>82</a> </span><span class="kw">type </span>Builder: ScalarVectorBuilder&lt;VectorType = <span class="self">Self</span>&gt;;
<a href=#83 id=83 data-nosnippet>83</a>
<a href=#84 id=84 data-nosnippet>84</a> <span class="doccomment">/// Returns the reference to an element at given position.
<a href=#85 id=85 data-nosnippet>85</a> ///
<a href=#86 id=86 data-nosnippet>86</a> /// Note: `get()` has bad performance, avoid call this function inside loop.
<a href=#87 id=87 data-nosnippet>87</a> ///
<a href=#88 id=88 data-nosnippet>88</a> /// # Panics
<a href=#89 id=89 data-nosnippet>89</a> /// Panics if `idx &gt;= self.len()`.
<a href=#90 id=90 data-nosnippet>90</a> </span><span class="kw">fn </span>get_data(<span class="kw-2">&amp;</span><span class="self">self</span>, idx: usize) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt;;
<a href=#91 id=91 data-nosnippet>91</a>
<a href=#92 id=92 data-nosnippet>92</a> <span class="doccomment">/// Returns iterator of current vector.
<a href=#93 id=93 data-nosnippet>93</a> </span><span class="kw">fn </span>iter_data(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::Iter&lt;<span class="lifetime">'_</span>&gt;;
<a href=#94 id=94 data-nosnippet>94</a>
<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">fn </span>from_slice(data: <span class="kw-2">&amp;</span>[<span class="self">Self</span>::RefItem&lt;<span class="lifetime">'_</span>&gt;]) -&gt; <span class="self">Self </span>{
<a href=#96 id=96 data-nosnippet>96</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = <span class="self">Self</span>::Builder::with_capacity(data.len());
<a href=#97 id=97 data-nosnippet>97</a> <span class="kw">for </span>item <span class="kw">in </span>data {
<a href=#98 id=98 data-nosnippet>98</a> builder.push(<span class="prelude-val">Some</span>(item.clone()));
<a href=#99 id=99 data-nosnippet>99</a> }
<a href=#100 id=100 data-nosnippet>100</a> builder.finish()
<a href=#101 id=101 data-nosnippet>101</a> }
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a> <span class="kw">fn </span>from_iterator&lt;<span class="lifetime">'a</span>&gt;(it: <span class="kw">impl </span>Iterator&lt;Item = <span class="self">Self</span>::RefItem&lt;<span class="lifetime">'a</span>&gt;&gt;) -&gt; <span class="self">Self </span>{
<a href=#104 id=104 data-nosnippet>104</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = <span class="self">Self</span>::Builder::with_capacity(get_iter_capacity(<span class="kw-2">&amp;</span>it));
<a href=#105 id=105 data-nosnippet>105</a> <span class="kw">for </span>item <span class="kw">in </span>it {
<a href=#106 id=106 data-nosnippet>106</a> builder.push(<span class="prelude-val">Some</span>(item));
<a href=#107 id=107 data-nosnippet>107</a> }
<a href=#108 id=108 data-nosnippet>108</a> builder.finish()
<a href=#109 id=109 data-nosnippet>109</a> }
<a href=#110 id=110 data-nosnippet>110</a>
<a href=#111 id=111 data-nosnippet>111</a> <span class="kw">fn </span>from_owned_iterator(it: <span class="kw">impl </span>Iterator&lt;Item = <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::OwnedItem&gt;&gt;) -&gt; <span class="self">Self </span>{
<a href=#112 id=112 data-nosnippet>112</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = <span class="self">Self</span>::Builder::with_capacity(get_iter_capacity(<span class="kw-2">&amp;</span>it));
<a href=#113 id=113 data-nosnippet>113</a> <span class="kw">for </span>item <span class="kw">in </span>it {
<a href=#114 id=114 data-nosnippet>114</a> <span class="kw">match </span>item {
<a href=#115 id=115 data-nosnippet>115</a> <span class="prelude-val">Some</span>(item) =&gt; builder.push(<span class="prelude-val">Some</span>(item.as_scalar_ref())),
<a href=#116 id=116 data-nosnippet>116</a> <span class="prelude-val">None </span>=&gt; builder.push(<span class="prelude-val">None</span>),
<a href=#117 id=117 data-nosnippet>117</a> }
<a href=#118 id=118 data-nosnippet>118</a> }
<a href=#119 id=119 data-nosnippet>119</a> builder.finish()
<a href=#120 id=120 data-nosnippet>120</a> }
<a href=#121 id=121 data-nosnippet>121</a>
<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">fn </span>from_vec&lt;I: Into&lt;<span class="self">Self</span>::OwnedItem&gt;&gt;(values: Vec&lt;I&gt;) -&gt; <span class="self">Self </span>{
<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">let </span>it = values.into_iter();
<a href=#124 id=124 data-nosnippet>124</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = <span class="self">Self</span>::Builder::with_capacity(get_iter_capacity(<span class="kw-2">&amp;</span>it));
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">for </span>item <span class="kw">in </span>it {
<a href=#126 id=126 data-nosnippet>126</a> builder.push(<span class="prelude-val">Some</span>(item.into().as_scalar_ref()));
<a href=#127 id=127 data-nosnippet>127</a> }
<a href=#128 id=128 data-nosnippet>128</a> builder.finish()
<a href=#129 id=129 data-nosnippet>129</a> }
<a href=#130 id=130 data-nosnippet>130</a>}
<a href=#131 id=131 data-nosnippet>131</a>
<a href=#132 id=132 data-nosnippet>132</a><span class="doccomment">/// A trait over all vector builders.
<a href=#133 id=133 data-nosnippet>133</a></span><span class="kw">pub trait </span>ScalarVectorBuilder: MutableVector {
<a href=#134 id=134 data-nosnippet>134</a> <span class="kw">type </span>VectorType: ScalarVector&lt;Builder = <span class="self">Self</span>&gt;;
<a href=#135 id=135 data-nosnippet>135</a>
<a href=#136 id=136 data-nosnippet>136</a> <span class="doccomment">/// Create a new builder with initial `capacity`.
<a href=#137 id=137 data-nosnippet>137</a> </span><span class="kw">fn </span>with_capacity(capacity: usize) -&gt; <span class="self">Self</span>;
<a href=#138 id=138 data-nosnippet>138</a>
<a href=#139 id=139 data-nosnippet>139</a> <span class="doccomment">/// Push a value into the builder.
<a href=#140 id=140 data-nosnippet>140</a> </span><span class="kw">fn </span>push(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="prelude-ty">Option</span>&lt;&lt;<span class="self">Self</span>::VectorType <span class="kw">as </span>ScalarVector&gt;::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt;);
<a href=#141 id=141 data-nosnippet>141</a>
<a href=#142 id=142 data-nosnippet>142</a> <span class="doccomment">/// Build a new vector and reset `self`.
<a href=#143 id=143 data-nosnippet>143</a> </span><span class="kw">fn </span>finish(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType;
<a href=#144 id=144 data-nosnippet>144</a>
<a href=#145 id=145 data-nosnippet>145</a> <span class="doccomment">/// Build a new vector without resetting `self`.
<a href=#146 id=146 data-nosnippet>146</a> </span><span class="kw">fn </span>finish_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType;
<a href=#147 id=147 data-nosnippet>147</a>}
<a href=#148 id=148 data-nosnippet>148</a>
<a href=#149 id=149 data-nosnippet>149</a><span class="macro">macro_rules!</span> impl_scalar_for_native {
<a href=#150 id=150 data-nosnippet>150</a> (<span class="macro-nonterminal">$Native</span>: ident, <span class="macro-nonterminal">$DataType</span>: ident) =&gt; {
<a href=#151 id=151 data-nosnippet>151</a> <span class="kw">impl </span>Scalar <span class="kw">for </span><span class="macro-nonterminal">$Native </span>{
<a href=#152 id=152 data-nosnippet>152</a> <span class="kw">type </span>VectorType = PrimitiveVector&lt;<span class="macro-nonterminal">$DataType</span>&gt;;
<a href=#153 id=153 data-nosnippet>153</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = <span class="macro-nonterminal">$Native</span>;
<a href=#154 id=154 data-nosnippet>154</a>
<a href=#155 id=155 data-nosnippet>155</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="macro-nonterminal">$Native </span>{
<a href=#156 id=156 data-nosnippet>156</a> <span class="kw-2">*</span><span class="self">self
<a href=#157 id=157 data-nosnippet>157</a> </span>}
<a href=#158 id=158 data-nosnippet>158</a>
<a href=#159 id=159 data-nosnippet>159</a> <span class="attr">#[allow(clippy::needless_lifetimes)]
<a href=#160 id=160 data-nosnippet>160</a> </span><span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(long: <span class="macro-nonterminal">$Native</span>) -&gt; <span class="macro-nonterminal">$Native </span>{
<a href=#161 id=161 data-nosnippet>161</a> long
<a href=#162 id=162 data-nosnippet>162</a> }
<a href=#163 id=163 data-nosnippet>163</a> }
<a href=#164 id=164 data-nosnippet>164</a>
<a href=#165 id=165 data-nosnippet>165</a> <span class="doccomment">/// Implement [`ScalarRef`] for primitive types. Note that primitive types are both [`Scalar`] and [`ScalarRef`].
<a href=#166 id=166 data-nosnippet>166</a> </span><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; ScalarRef&lt;<span class="lifetime">'a</span>&gt; <span class="kw">for </span><span class="macro-nonterminal">$Native </span>{
<a href=#167 id=167 data-nosnippet>167</a> <span class="kw">type </span>ScalarType = <span class="macro-nonterminal">$Native</span>;
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="macro-nonterminal">$Native </span>{
<a href=#170 id=170 data-nosnippet>170</a> <span class="kw-2">*</span><span class="self">self
<a href=#171 id=171 data-nosnippet>171</a> </span>}
<a href=#172 id=172 data-nosnippet>172</a> }
<a href=#173 id=173 data-nosnippet>173</a> };
<a href=#174 id=174 data-nosnippet>174</a>}
<a href=#175 id=175 data-nosnippet>175</a>
<a href=#176 id=176 data-nosnippet>176</a><span class="macro">impl_scalar_for_native!</span>(u8, UInt8Type);
<a href=#177 id=177 data-nosnippet>177</a><span class="macro">impl_scalar_for_native!</span>(u16, UInt16Type);
<a href=#178 id=178 data-nosnippet>178</a><span class="macro">impl_scalar_for_native!</span>(u32, UInt32Type);
<a href=#179 id=179 data-nosnippet>179</a><span class="macro">impl_scalar_for_native!</span>(u64, UInt64Type);
<a href=#180 id=180 data-nosnippet>180</a><span class="macro">impl_scalar_for_native!</span>(i8, Int8Type);
<a href=#181 id=181 data-nosnippet>181</a><span class="macro">impl_scalar_for_native!</span>(i16, Int16Type);
<a href=#182 id=182 data-nosnippet>182</a><span class="macro">impl_scalar_for_native!</span>(i32, Int32Type);
<a href=#183 id=183 data-nosnippet>183</a><span class="macro">impl_scalar_for_native!</span>(i64, Int64Type);
<a href=#184 id=184 data-nosnippet>184</a><span class="macro">impl_scalar_for_native!</span>(f32, Float32Type);
<a href=#185 id=185 data-nosnippet>185</a><span class="macro">impl_scalar_for_native!</span>(f64, Float64Type);
<a href=#186 id=186 data-nosnippet>186</a>
<a href=#187 id=187 data-nosnippet>187</a><span class="kw">impl </span>Scalar <span class="kw">for </span>() {
<a href=#188 id=188 data-nosnippet>188</a> <span class="kw">type </span>VectorType = NullVector;
<a href=#189 id=189 data-nosnippet>189</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = ();
<a href=#190 id=190 data-nosnippet>190</a>
<a href=#191 id=191 data-nosnippet>191</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) {}
<a href=#192 id=192 data-nosnippet>192</a>
<a href=#193 id=193 data-nosnippet>193</a> <span class="attr">#[allow(clippy::needless_lifetimes)]
<a href=#194 id=194 data-nosnippet>194</a> </span><span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(long: ()) {
<a href=#195 id=195 data-nosnippet>195</a> long
<a href=#196 id=196 data-nosnippet>196</a> }
<a href=#197 id=197 data-nosnippet>197</a>}
<a href=#198 id=198 data-nosnippet>198</a>
<a href=#199 id=199 data-nosnippet>199</a><span class="kw">impl </span>ScalarRef&lt;<span class="lifetime">'_</span>&gt; <span class="kw">for </span>() {
<a href=#200 id=200 data-nosnippet>200</a> <span class="kw">type </span>ScalarType = ();
<a href=#201 id=201 data-nosnippet>201</a>
<a href=#202 id=202 data-nosnippet>202</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) {}
<a href=#203 id=203 data-nosnippet>203</a>}
<a href=#204 id=204 data-nosnippet>204</a>
<a href=#205 id=205 data-nosnippet>205</a><span class="kw">impl </span>Scalar <span class="kw">for </span>bool {
<a href=#206 id=206 data-nosnippet>206</a> <span class="kw">type </span>VectorType = BooleanVector;
<a href=#207 id=207 data-nosnippet>207</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = bool;
<a href=#208 id=208 data-nosnippet>208</a>
<a href=#209 id=209 data-nosnippet>209</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#210 id=210 data-nosnippet>210</a> <span class="kw-2">*</span><span class="self">self
<a href=#211 id=211 data-nosnippet>211</a> </span>}
<a href=#212 id=212 data-nosnippet>212</a>
<a href=#213 id=213 data-nosnippet>213</a> <span class="attr">#[allow(clippy::needless_lifetimes)]
<a href=#214 id=214 data-nosnippet>214</a> </span><span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(long: bool) -&gt; bool {
<a href=#215 id=215 data-nosnippet>215</a> long
<a href=#216 id=216 data-nosnippet>216</a> }
<a href=#217 id=217 data-nosnippet>217</a>}
<a href=#218 id=218 data-nosnippet>218</a>
<a href=#219 id=219 data-nosnippet>219</a><span class="kw">impl </span>ScalarRef&lt;<span class="lifetime">'_</span>&gt; <span class="kw">for </span>bool {
<a href=#220 id=220 data-nosnippet>220</a> <span class="kw">type </span>ScalarType = bool;
<a href=#221 id=221 data-nosnippet>221</a>
<a href=#222 id=222 data-nosnippet>222</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#223 id=223 data-nosnippet>223</a> <span class="kw-2">*</span><span class="self">self
<a href=#224 id=224 data-nosnippet>224</a> </span>}
<a href=#225 id=225 data-nosnippet>225</a>}
<a href=#226 id=226 data-nosnippet>226</a>
<a href=#227 id=227 data-nosnippet>227</a><span class="kw">impl </span>Scalar <span class="kw">for </span>String {
<a href=#228 id=228 data-nosnippet>228</a> <span class="kw">type </span>VectorType = StringVector;
<a href=#229 id=229 data-nosnippet>229</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = <span class="kw-2">&amp;</span><span class="lifetime">'a </span>str;
<a href=#230 id=230 data-nosnippet>230</a>
<a href=#231 id=231 data-nosnippet>231</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>str {
<a href=#232 id=232 data-nosnippet>232</a> <span class="self">self
<a href=#233 id=233 data-nosnippet>233</a> </span>}
<a href=#234 id=234 data-nosnippet>234</a>
<a href=#235 id=235 data-nosnippet>235</a> <span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(long: <span class="kw-2">&amp;</span><span class="lifetime">'long </span>str) -&gt; <span class="kw-2">&amp;</span><span class="lifetime">'short </span>str {
<a href=#236 id=236 data-nosnippet>236</a> long
<a href=#237 id=237 data-nosnippet>237</a> }
<a href=#238 id=238 data-nosnippet>238</a>}
<a href=#239 id=239 data-nosnippet>239</a>
<a href=#240 id=240 data-nosnippet>240</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; ScalarRef&lt;<span class="lifetime">'a</span>&gt; <span class="kw">for </span><span class="kw-2">&amp;</span><span class="lifetime">'a </span>str {
<a href=#241 id=241 data-nosnippet>241</a> <span class="kw">type </span>ScalarType = String;
<a href=#242 id=242 data-nosnippet>242</a>
<a href=#243 id=243 data-nosnippet>243</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#244 id=244 data-nosnippet>244</a> <span class="self">self</span>.to_string()
<a href=#245 id=245 data-nosnippet>245</a> }
<a href=#246 id=246 data-nosnippet>246</a>}
<a href=#247 id=247 data-nosnippet>247</a>
<a href=#248 id=248 data-nosnippet>248</a><span class="kw">impl </span>Scalar <span class="kw">for </span>Vec&lt;u8&gt; {
<a href=#249 id=249 data-nosnippet>249</a> <span class="kw">type </span>VectorType = BinaryVector;
<a href=#250 id=250 data-nosnippet>250</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = <span class="kw-2">&amp;</span><span class="lifetime">'a </span>[u8];
<a href=#251 id=251 data-nosnippet>251</a>
<a href=#252 id=252 data-nosnippet>252</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
<a href=#253 id=253 data-nosnippet>253</a> <span class="self">self
<a href=#254 id=254 data-nosnippet>254</a> </span>}
<a href=#255 id=255 data-nosnippet>255</a>
<a href=#256 id=256 data-nosnippet>256</a> <span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(long: <span class="kw-2">&amp;</span><span class="lifetime">'long </span>[u8]) -&gt; <span class="kw-2">&amp;</span><span class="lifetime">'short </span>[u8] {
<a href=#257 id=257 data-nosnippet>257</a> long
<a href=#258 id=258 data-nosnippet>258</a> }
<a href=#259 id=259 data-nosnippet>259</a>}
<a href=#260 id=260 data-nosnippet>260</a>
<a href=#261 id=261 data-nosnippet>261</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; ScalarRef&lt;<span class="lifetime">'a</span>&gt; <span class="kw">for </span><span class="kw-2">&amp;</span><span class="lifetime">'a </span>[u8] {
<a href=#262 id=262 data-nosnippet>262</a> <span class="kw">type </span>ScalarType = Vec&lt;u8&gt;;
<a href=#263 id=263 data-nosnippet>263</a>
<a href=#264 id=264 data-nosnippet>264</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Vec&lt;u8&gt; {
<a href=#265 id=265 data-nosnippet>265</a> <span class="self">self</span>.to_vec()
<a href=#266 id=266 data-nosnippet>266</a> }
<a href=#267 id=267 data-nosnippet>267</a>}
<a href=#268 id=268 data-nosnippet>268</a>
<a href=#269 id=269 data-nosnippet>269</a><span class="kw">impl </span>Scalar <span class="kw">for </span>Date {
<a href=#270 id=270 data-nosnippet>270</a> <span class="kw">type </span>VectorType = DateVector;
<a href=#271 id=271 data-nosnippet>271</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = Date;
<a href=#272 id=272 data-nosnippet>272</a>
<a href=#273 id=273 data-nosnippet>273</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'_</span>&gt; {
<a href=#274 id=274 data-nosnippet>274</a> <span class="kw-2">*</span><span class="self">self
<a href=#275 id=275 data-nosnippet>275</a> </span>}
<a href=#276 id=276 data-nosnippet>276</a>
<a href=#277 id=277 data-nosnippet>277</a> <span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(long: <span class="self">Self</span>::RefType&lt;<span class="lifetime">'long</span>&gt;) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'short</span>&gt; {
<a href=#278 id=278 data-nosnippet>278</a> long
<a href=#279 id=279 data-nosnippet>279</a> }
<a href=#280 id=280 data-nosnippet>280</a>}
<a href=#281 id=281 data-nosnippet>281</a>
<a href=#282 id=282 data-nosnippet>282</a><span class="kw">impl </span>ScalarRef&lt;<span class="lifetime">'_</span>&gt; <span class="kw">for </span>Date {
<a href=#283 id=283 data-nosnippet>283</a> <span class="kw">type </span>ScalarType = Date;
<a href=#284 id=284 data-nosnippet>284</a>
<a href=#285 id=285 data-nosnippet>285</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::ScalarType {
<a href=#286 id=286 data-nosnippet>286</a> <span class="kw-2">*</span><span class="self">self
<a href=#287 id=287 data-nosnippet>287</a> </span>}
<a href=#288 id=288 data-nosnippet>288</a>}
<a href=#289 id=289 data-nosnippet>289</a>
<a href=#290 id=290 data-nosnippet>290</a><span class="kw">impl </span>Scalar <span class="kw">for </span>Decimal128 {
<a href=#291 id=291 data-nosnippet>291</a> <span class="kw">type </span>VectorType = Decimal128Vector;
<a href=#292 id=292 data-nosnippet>292</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = Decimal128;
<a href=#293 id=293 data-nosnippet>293</a>
<a href=#294 id=294 data-nosnippet>294</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'_</span>&gt; {
<a href=#295 id=295 data-nosnippet>295</a> <span class="kw-2">*</span><span class="self">self
<a href=#296 id=296 data-nosnippet>296</a> </span>}
<a href=#297 id=297 data-nosnippet>297</a>
<a href=#298 id=298 data-nosnippet>298</a> <span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(long: <span class="self">Self</span>::RefType&lt;<span class="lifetime">'long</span>&gt;) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'short</span>&gt; {
<a href=#299 id=299 data-nosnippet>299</a> long
<a href=#300 id=300 data-nosnippet>300</a> }
<a href=#301 id=301 data-nosnippet>301</a>}
<a href=#302 id=302 data-nosnippet>302</a>
<a href=#303 id=303 data-nosnippet>303</a><span class="kw">impl </span>ScalarRef&lt;<span class="lifetime">'_</span>&gt; <span class="kw">for </span>Decimal128 {
<a href=#304 id=304 data-nosnippet>304</a> <span class="kw">type </span>ScalarType = Decimal128;
<a href=#305 id=305 data-nosnippet>305</a>
<a href=#306 id=306 data-nosnippet>306</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::ScalarType {
<a href=#307 id=307 data-nosnippet>307</a> <span class="kw-2">*</span><span class="self">self
<a href=#308 id=308 data-nosnippet>308</a> </span>}
<a href=#309 id=309 data-nosnippet>309</a>}
<a href=#310 id=310 data-nosnippet>310</a>
<a href=#311 id=311 data-nosnippet>311</a><span class="comment">// Timestamp types implement Scalar and ScalarRef in `src/timestamp.rs`.
<a href=#312 id=312 data-nosnippet>312</a>
<a href=#313 id=313 data-nosnippet>313</a></span><span class="kw">impl </span>Scalar <span class="kw">for </span>ListValue {
<a href=#314 id=314 data-nosnippet>314</a> <span class="kw">type </span>VectorType = ListVector;
<a href=#315 id=315 data-nosnippet>315</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = ListValueRef&lt;<span class="lifetime">'a</span>&gt;;
<a href=#316 id=316 data-nosnippet>316</a>
<a href=#317 id=317 data-nosnippet>317</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'_</span>&gt; {
<a href=#318 id=318 data-nosnippet>318</a> ListValueRef::Ref { val: <span class="self">self </span>}
<a href=#319 id=319 data-nosnippet>319</a> }
<a href=#320 id=320 data-nosnippet>320</a>
<a href=#321 id=321 data-nosnippet>321</a> <span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(long: <span class="self">Self</span>::RefType&lt;<span class="lifetime">'long</span>&gt;) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'short</span>&gt; {
<a href=#322 id=322 data-nosnippet>322</a> long
<a href=#323 id=323 data-nosnippet>323</a> }
<a href=#324 id=324 data-nosnippet>324</a>}
<a href=#325 id=325 data-nosnippet>325</a>
<a href=#326 id=326 data-nosnippet>326</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; ScalarRef&lt;<span class="lifetime">'a</span>&gt; <span class="kw">for </span>ListValueRef&lt;<span class="lifetime">'a</span>&gt; {
<a href=#327 id=327 data-nosnippet>327</a> <span class="kw">type </span>ScalarType = ListValue;
<a href=#328 id=328 data-nosnippet>328</a>
<a href=#329 id=329 data-nosnippet>329</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::ScalarType {
<a href=#330 id=330 data-nosnippet>330</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#331 id=331 data-nosnippet>331</a> ListValueRef::Indexed { vector, idx } =&gt; <span class="kw">match </span>vector.get(<span class="kw-2">*</span>idx) {
<a href=#332 id=332 data-nosnippet>332</a> <span class="comment">// Normally should not get `Value::Null` if the `ListValueRef` comes
<a href=#333 id=333 data-nosnippet>333</a> // from the iterator of the ListVector, but we avoid panic and just
<a href=#334 id=334 data-nosnippet>334</a> // returns a default list value in such case since `ListValueRef` may
<a href=#335 id=335 data-nosnippet>335</a> // be constructed manually.
<a href=#336 id=336 data-nosnippet>336</a> </span>Value::Null =&gt; ListValue::default(),
<a href=#337 id=337 data-nosnippet>337</a> Value::List(v) =&gt; v,
<a href=#338 id=338 data-nosnippet>338</a> <span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(),
<a href=#339 id=339 data-nosnippet>339</a> },
<a href=#340 id=340 data-nosnippet>340</a> ListValueRef::Ref { val } =&gt; (<span class="kw-2">*</span>val).clone(),
<a href=#341 id=341 data-nosnippet>341</a> ListValueRef::RefList { val, item_datatype } =&gt; ListValue::new(
<a href=#342 id=342 data-nosnippet>342</a> val.iter().map(|v| Value::from(v.clone())).collect(),
<a href=#343 id=343 data-nosnippet>343</a> item_datatype.clone(),
<a href=#344 id=344 data-nosnippet>344</a> ),
<a href=#345 id=345 data-nosnippet>345</a> }
<a href=#346 id=346 data-nosnippet>346</a> }
<a href=#347 id=347 data-nosnippet>347</a>}
<a href=#348 id=348 data-nosnippet>348</a>
<a href=#349 id=349 data-nosnippet>349</a><span class="kw">impl </span>Scalar <span class="kw">for </span>StructValue {
<a href=#350 id=350 data-nosnippet>350</a> <span class="kw">type </span>VectorType = StructVector;
<a href=#351 id=351 data-nosnippet>351</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = StructValueRef&lt;<span class="lifetime">'a</span>&gt;;
<a href=#352 id=352 data-nosnippet>352</a>
<a href=#353 id=353 data-nosnippet>353</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'_</span>&gt; {
<a href=#354 id=354 data-nosnippet>354</a> StructValueRef::Ref(<span class="self">self</span>)
<a href=#355 id=355 data-nosnippet>355</a> }
<a href=#356 id=356 data-nosnippet>356</a>
<a href=#357 id=357 data-nosnippet>357</a> <span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(long: <span class="self">Self</span>::RefType&lt;<span class="lifetime">'long</span>&gt;) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'short</span>&gt; {
<a href=#358 id=358 data-nosnippet>358</a> long
<a href=#359 id=359 data-nosnippet>359</a> }
<a href=#360 id=360 data-nosnippet>360</a>}
<a href=#361 id=361 data-nosnippet>361</a>
<a href=#362 id=362 data-nosnippet>362</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; ScalarRef&lt;<span class="lifetime">'a</span>&gt; <span class="kw">for </span>StructValueRef&lt;<span class="lifetime">'a</span>&gt; {
<a href=#363 id=363 data-nosnippet>363</a> <span class="kw">type </span>ScalarType = StructValue;
<a href=#364 id=364 data-nosnippet>364</a>
<a href=#365 id=365 data-nosnippet>365</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::ScalarType {
<a href=#366 id=366 data-nosnippet>366</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#367 id=367 data-nosnippet>367</a> <span class="self">Self</span>::Indexed { vector, idx } =&gt; <span class="kw">match </span>vector.get(<span class="kw-2">*</span>idx) {
<a href=#368 id=368 data-nosnippet>368</a> Value::Null =&gt; StructValue::default(),
<a href=#369 id=369 data-nosnippet>369</a> Value::Struct(v) =&gt; v,
<a href=#370 id=370 data-nosnippet>370</a> <span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(),
<a href=#371 id=371 data-nosnippet>371</a> },
<a href=#372 id=372 data-nosnippet>372</a> StructValueRef::Ref(val) =&gt; (<span class="kw-2">*</span>val).clone(),
<a href=#373 id=373 data-nosnippet>373</a> StructValueRef::RefList { val, fields } =&gt; {
<a href=#374 id=374 data-nosnippet>374</a> <span class="kw">let </span>items = val.iter().map(|v| Value::from(v.clone())).collect();
<a href=#375 id=375 data-nosnippet>375</a> StructValue::try_new(items, fields.clone()).unwrap()
<a href=#376 id=376 data-nosnippet>376</a> }
<a href=#377 id=377 data-nosnippet>377</a> }
<a href=#378 id=378 data-nosnippet>378</a> }
<a href=#379 id=379 data-nosnippet>379</a>}
<a href=#380 id=380 data-nosnippet>380</a>
<a href=#381 id=381 data-nosnippet>381</a><span class="attr">#[cfg(test)]
<a href=#382 id=382 data-nosnippet>382</a></span><span class="kw">mod </span>tests {
<a href=#383 id=383 data-nosnippet>383</a> <span class="kw">use </span>std::sync::Arc;
<a href=#384 id=384 data-nosnippet>384</a>
<a href=#385 id=385 data-nosnippet>385</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#386 id=386 data-nosnippet>386</a> <span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#387 id=387 data-nosnippet>387</a> <span class="kw">use </span><span class="kw">crate</span>::timestamp::TimestampSecond;
<a href=#388 id=388 data-nosnippet>388</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::{BinaryVector, Int32Vector, ListVectorBuilder, TimestampSecondVector};
<a href=#389 id=389 data-nosnippet>389</a>
<a href=#390 id=390 data-nosnippet>390</a> <span class="kw">fn </span>build_vector_from_slice&lt;T: ScalarVector&gt;(items: <span class="kw-2">&amp;</span>[<span class="prelude-ty">Option</span>&lt;T::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt;]) -&gt; T {
<a href=#391 id=391 data-nosnippet>391</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = T::Builder::with_capacity(items.len());
<a href=#392 id=392 data-nosnippet>392</a> <span class="kw">for </span>item <span class="kw">in </span>items {
<a href=#393 id=393 data-nosnippet>393</a> builder.push(item.clone());
<a href=#394 id=394 data-nosnippet>394</a> }
<a href=#395 id=395 data-nosnippet>395</a> builder.finish()
<a href=#396 id=396 data-nosnippet>396</a> }
<a href=#397 id=397 data-nosnippet>397</a>
<a href=#398 id=398 data-nosnippet>398</a> <span class="kw">fn </span>assert_vector_eq&lt;<span class="lifetime">'a</span>, T: ScalarVector&gt;(expect: <span class="kw-2">&amp;</span>[<span class="prelude-ty">Option</span>&lt;T::RefItem&lt;<span class="lifetime">'a</span>&gt;&gt;], vector: <span class="kw-2">&amp;</span><span class="lifetime">'a </span>T)
<a href=#399 id=399 data-nosnippet>399</a> <span class="kw">where
<a href=#400 id=400 data-nosnippet>400</a> </span>T::RefItem&lt;<span class="lifetime">'a</span>&gt;: PartialEq + std::fmt::Debug,
<a href=#401 id=401 data-nosnippet>401</a> {
<a href=#402 id=402 data-nosnippet>402</a> <span class="kw">for </span>(a, b) <span class="kw">in </span>expect.iter().zip(vector.iter_data()) {
<a href=#403 id=403 data-nosnippet>403</a> <span class="macro">assert_eq!</span>(<span class="kw-2">*</span>a, b);
<a href=#404 id=404 data-nosnippet>404</a> }
<a href=#405 id=405 data-nosnippet>405</a> }
<a href=#406 id=406 data-nosnippet>406</a>
<a href=#407 id=407 data-nosnippet>407</a> <span class="attr">#[test]
<a href=#408 id=408 data-nosnippet>408</a> </span><span class="kw">fn </span>test_build_i32_vector() {
<a href=#409 id=409 data-nosnippet>409</a> <span class="kw">let </span>expect = <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">Some</span>(<span class="number">3</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">5</span>)];
<a href=#410 id=410 data-nosnippet>410</a> <span class="kw">let </span>vector: Int32Vector = build_vector_from_slice(<span class="kw-2">&amp;</span>expect);
<a href=#411 id=411 data-nosnippet>411</a> assert_vector_eq(<span class="kw-2">&amp;</span>expect, <span class="kw-2">&amp;</span>vector);
<a href=#412 id=412 data-nosnippet>412</a> }
<a href=#413 id=413 data-nosnippet>413</a>
<a href=#414 id=414 data-nosnippet>414</a> <span class="attr">#[test]
<a href=#415 id=415 data-nosnippet>415</a> </span><span class="kw">fn </span>test_build_binary_vector() {
<a href=#416 id=416 data-nosnippet>416</a> <span class="kw">let </span>expect: Vec&lt;<span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span><span class="lifetime">'static </span>[u8]&gt;&gt; = <span class="macro">vec!</span>[
<a href=#417 id=417 data-nosnippet>417</a> <span class="prelude-val">Some</span>(<span class="string">b"a"</span>),
<a href=#418 id=418 data-nosnippet>418</a> <span class="prelude-val">Some</span>(<span class="string">b"b"</span>),
<a href=#419 id=419 data-nosnippet>419</a> <span class="prelude-val">Some</span>(<span class="string">b"c"</span>),
<a href=#420 id=420 data-nosnippet>420</a> <span class="prelude-val">None</span>,
<a href=#421 id=421 data-nosnippet>421</a> <span class="prelude-val">Some</span>(<span class="string">b"e"</span>),
<a href=#422 id=422 data-nosnippet>422</a> <span class="prelude-val">Some</span>(<span class="string">b""</span>),
<a href=#423 id=423 data-nosnippet>423</a> ];
<a href=#424 id=424 data-nosnippet>424</a> <span class="kw">let </span>vector: BinaryVector = build_vector_from_slice(<span class="kw-2">&amp;</span>expect);
<a href=#425 id=425 data-nosnippet>425</a> assert_vector_eq(<span class="kw-2">&amp;</span>expect, <span class="kw-2">&amp;</span>vector);
<a href=#426 id=426 data-nosnippet>426</a> }
<a href=#427 id=427 data-nosnippet>427</a>
<a href=#428 id=428 data-nosnippet>428</a> <span class="attr">#[test]
<a href=#429 id=429 data-nosnippet>429</a> </span><span class="kw">fn </span>test_build_date_vector() {
<a href=#430 id=430 data-nosnippet>430</a> <span class="kw">let </span>expect: Vec&lt;<span class="prelude-ty">Option</span>&lt;Date&gt;&gt; = <span class="macro">vec!</span>[
<a href=#431 id=431 data-nosnippet>431</a> <span class="prelude-val">Some</span>(Date::new(<span class="number">0</span>)),
<a href=#432 id=432 data-nosnippet>432</a> <span class="prelude-val">Some</span>(Date::new(-<span class="number">1</span>)),
<a href=#433 id=433 data-nosnippet>433</a> <span class="prelude-val">None</span>,
<a href=#434 id=434 data-nosnippet>434</a> <span class="prelude-val">Some</span>(Date::new(<span class="number">1</span>)),
<a href=#435 id=435 data-nosnippet>435</a> ];
<a href=#436 id=436 data-nosnippet>436</a> <span class="kw">let </span>vector: DateVector = build_vector_from_slice(<span class="kw-2">&amp;</span>expect);
<a href=#437 id=437 data-nosnippet>437</a> assert_vector_eq(<span class="kw-2">&amp;</span>expect, <span class="kw-2">&amp;</span>vector);
<a href=#438 id=438 data-nosnippet>438</a> }
<a href=#439 id=439 data-nosnippet>439</a>
<a href=#440 id=440 data-nosnippet>440</a> <span class="attr">#[test]
<a href=#441 id=441 data-nosnippet>441</a> </span><span class="kw">fn </span>test_date_scalar() {
<a href=#442 id=442 data-nosnippet>442</a> <span class="kw">let </span>date = Date::new(<span class="number">1</span>);
<a href=#443 id=443 data-nosnippet>443</a> <span class="macro">assert_eq!</span>(date, date.as_scalar_ref());
<a href=#444 id=444 data-nosnippet>444</a> <span class="macro">assert_eq!</span>(date, date.to_owned_scalar());
<a href=#445 id=445 data-nosnippet>445</a> }
<a href=#446 id=446 data-nosnippet>446</a>
<a href=#447 id=447 data-nosnippet>447</a> <span class="attr">#[test]
<a href=#448 id=448 data-nosnippet>448</a> </span><span class="kw">fn </span>test_decimal_scalar() {
<a href=#449 id=449 data-nosnippet>449</a> <span class="kw">let </span>decimal = Decimal128::new(<span class="number">1</span>, <span class="number">1</span>, <span class="number">1</span>);
<a href=#450 id=450 data-nosnippet>450</a> <span class="macro">assert_eq!</span>(decimal, decimal.as_scalar_ref());
<a href=#451 id=451 data-nosnippet>451</a> <span class="macro">assert_eq!</span>(decimal, decimal.to_owned_scalar());
<a href=#452 id=452 data-nosnippet>452</a> }
<a href=#453 id=453 data-nosnippet>453</a>
<a href=#454 id=454 data-nosnippet>454</a> <span class="attr">#[test]
<a href=#455 id=455 data-nosnippet>455</a> </span><span class="kw">fn </span>test_list_value_scalar() {
<a href=#456 id=456 data-nosnippet>456</a> <span class="kw">let </span>item_type = Arc::new(ConcreteDataType::int32_datatype());
<a href=#457 id=457 data-nosnippet>457</a> <span class="kw">let </span>list_value = ListValue::new(<span class="macro">vec!</span>[Value::Int32(<span class="number">123</span>)], item_type.clone());
<a href=#458 id=458 data-nosnippet>458</a> <span class="kw">let </span>list_ref = ListValueRef::Ref { val: <span class="kw-2">&amp;</span>list_value };
<a href=#459 id=459 data-nosnippet>459</a> <span class="macro">assert_eq!</span>(list_ref, list_value.as_scalar_ref());
<a href=#460 id=460 data-nosnippet>460</a> <span class="macro">assert_eq!</span>(list_value, list_ref.to_owned_scalar());
<a href=#461 id=461 data-nosnippet>461</a>
<a href=#462 id=462 data-nosnippet>462</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = ListVectorBuilder::with_type_capacity(item_type.clone(), <span class="number">1</span>);
<a href=#463 id=463 data-nosnippet>463</a> builder.push(<span class="prelude-val">None</span>);
<a href=#464 id=464 data-nosnippet>464</a> builder.push(<span class="prelude-val">Some</span>(list_value.as_scalar_ref()));
<a href=#465 id=465 data-nosnippet>465</a> <span class="kw">let </span>vector = builder.finish();
<a href=#466 id=466 data-nosnippet>466</a>
<a href=#467 id=467 data-nosnippet>467</a> <span class="kw">let </span>ref_on_vec = ListValueRef::Indexed {
<a href=#468 id=468 data-nosnippet>468</a> vector: <span class="kw-2">&amp;</span>vector,
<a href=#469 id=469 data-nosnippet>469</a> idx: <span class="number">0</span>,
<a href=#470 id=470 data-nosnippet>470</a> };
<a href=#471 id=471 data-nosnippet>471</a> <span class="macro">assert_eq!</span>(ListValue::default(), ref_on_vec.to_owned_scalar());
<a href=#472 id=472 data-nosnippet>472</a> <span class="kw">let </span>ref_on_vec = ListValueRef::Indexed {
<a href=#473 id=473 data-nosnippet>473</a> vector: <span class="kw-2">&amp;</span>vector,
<a href=#474 id=474 data-nosnippet>474</a> idx: <span class="number">1</span>,
<a href=#475 id=475 data-nosnippet>475</a> };
<a href=#476 id=476 data-nosnippet>476</a> <span class="macro">assert_eq!</span>(list_value, ref_on_vec.to_owned_scalar());
<a href=#477 id=477 data-nosnippet>477</a> }
<a href=#478 id=478 data-nosnippet>478</a>
<a href=#479 id=479 data-nosnippet>479</a> <span class="attr">#[test]
<a href=#480 id=480 data-nosnippet>480</a> </span><span class="kw">fn </span>test_build_timestamp_vector() {
<a href=#481 id=481 data-nosnippet>481</a> <span class="kw">let </span>expect: Vec&lt;<span class="prelude-ty">Option</span>&lt;TimestampSecond&gt;&gt; = <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">10</span>.into()), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">42</span>.into())];
<a href=#482 id=482 data-nosnippet>482</a> <span class="kw">let </span>vector: TimestampSecondVector = build_vector_from_slice(<span class="kw-2">&amp;</span>expect);
<a href=#483 id=483 data-nosnippet>483</a> assert_vector_eq(<span class="kw-2">&amp;</span>expect, <span class="kw-2">&amp;</span>vector);
<a href=#484 id=484 data-nosnippet>484</a> <span class="kw">let </span>val = vector.get_data(<span class="number">0</span>).unwrap();
<a href=#485 id=485 data-nosnippet>485</a> <span class="macro">assert_eq!</span>(val, val.as_scalar_ref());
<a href=#486 id=486 data-nosnippet>486</a> <span class="macro">assert_eq!</span>(TimestampSecond::from(<span class="number">10</span>), val.to_owned_scalar());
<a href=#487 id=487 data-nosnippet>487</a> }
<a href=#488 id=488 data-nosnippet>488</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/schema.rs`."><title>schema.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>schema.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">mod </span>column_schema;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">pub mod </span>constraint;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">pub mod </span>ext;
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>std::collections::HashMap;
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>std::sync::Arc;
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>std::{fmt, mem};
<a href=#22 id=22 data-nosnippet>22</a>
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>arrow::datatypes::{Field, Schema <span class="kw">as </span>ArrowSchema};
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>datafusion_common::DFSchemaRef;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span>serde::{Deserialize, Deserializer, Serialize};
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span>snafu::{ResultExt, ensure};
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, DuplicateColumnSnafu, Error, ProjectArrowSchemaSnafu, <span class="prelude-ty">Result</span>};
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::prelude::ConcreteDataType;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">pub use </span><span class="kw">crate</span>::schema::column_schema::{
<a href=#31 id=31 data-nosnippet>31</a> COLUMN_FULLTEXT_CHANGE_OPT_KEY_ENABLE, COLUMN_FULLTEXT_OPT_KEY_ANALYZER,
<a href=#32 id=32 data-nosnippet>32</a> COLUMN_FULLTEXT_OPT_KEY_BACKEND, COLUMN_FULLTEXT_OPT_KEY_CASE_SENSITIVE,
<a href=#33 id=33 data-nosnippet>33</a> COLUMN_FULLTEXT_OPT_KEY_FALSE_POSITIVE_RATE, COLUMN_FULLTEXT_OPT_KEY_GRANULARITY,
<a href=#34 id=34 data-nosnippet>34</a> COLUMN_SKIPPING_INDEX_OPT_KEY_FALSE_POSITIVE_RATE, COLUMN_SKIPPING_INDEX_OPT_KEY_GRANULARITY,
<a href=#35 id=35 data-nosnippet>35</a> COLUMN_SKIPPING_INDEX_OPT_KEY_TYPE, COMMENT_KEY, ColumnExtType, ColumnSchema, FULLTEXT_KEY,
<a href=#36 id=36 data-nosnippet>36</a> FulltextAnalyzer, FulltextBackend, FulltextOptions, INVERTED_INDEX_KEY, Metadata,
<a href=#37 id=37 data-nosnippet>37</a> SKIPPING_INDEX_KEY, SkippingIndexOptions, SkippingIndexType, TIME_INDEX_KEY,
<a href=#38 id=38 data-nosnippet>38</a>};
<a href=#39 id=39 data-nosnippet>39</a><span class="kw">pub use </span><span class="kw">crate</span>::schema::constraint::ColumnDefaultConstraint;
<a href=#40 id=40 data-nosnippet>40</a>
<a href=#41 id=41 data-nosnippet>41</a><span class="doccomment">/// Key used to store version number of the schema in metadata.
<a href=#42 id=42 data-nosnippet>42</a></span><span class="kw">pub const </span>VERSION_KEY: <span class="kw-2">&amp;</span>str = <span class="string">"greptime:version"</span>;
<a href=#43 id=43 data-nosnippet>43</a><span class="doccomment">/// Key used to store actual column type in field metadata.
<a href=#44 id=44 data-nosnippet>44</a></span><span class="kw">pub const </span>TYPE_KEY: <span class="kw-2">&amp;</span>str = <span class="string">"greptime:type"</span>;
<a href=#45 id=45 data-nosnippet>45</a>
<a href=#46 id=46 data-nosnippet>46</a><span class="doccomment">/// A common schema, should be immutable.
<a href=#47 id=47 data-nosnippet>47</a></span><span class="attr">#[derive(Clone, PartialEq, Eq, Serialize)]
<a href=#48 id=48 data-nosnippet>48</a></span><span class="kw">pub struct </span>Schema {
<a href=#49 id=49 data-nosnippet>49</a> column_schemas: Vec&lt;ColumnSchema&gt;,
<a href=#50 id=50 data-nosnippet>50</a> <span class="attr">#[serde(skip_serializing)]
<a href=#51 id=51 data-nosnippet>51</a> </span>name_to_index: HashMap&lt;String, usize&gt;,
<a href=#52 id=52 data-nosnippet>52</a> <span class="attr">#[serde(skip_serializing)]
<a href=#53 id=53 data-nosnippet>53</a> </span>arrow_schema: Arc&lt;ArrowSchema&gt;,
<a href=#54 id=54 data-nosnippet>54</a> <span class="doccomment">/// Index of the timestamp key column.
<a href=#55 id=55 data-nosnippet>55</a> ///
<a href=#56 id=56 data-nosnippet>56</a> /// Timestamp key column is the column holds the timestamp and forms part of
<a href=#57 id=57 data-nosnippet>57</a> /// the primary key. None means there is no timestamp key column.
<a href=#58 id=58 data-nosnippet>58</a> </span><span class="attr">#[serde(skip_serializing)]
<a href=#59 id=59 data-nosnippet>59</a> </span>timestamp_index: <span class="prelude-ty">Option</span>&lt;usize&gt;,
<a href=#60 id=60 data-nosnippet>60</a> <span class="doccomment">/// Version of the schema.
<a href=#61 id=61 data-nosnippet>61</a> ///
<a href=#62 id=62 data-nosnippet>62</a> /// Initial value is zero. The version should bump after altering schema.
<a href=#63 id=63 data-nosnippet>63</a> </span>version: u32,
<a href=#64 id=64 data-nosnippet>64</a>}
<a href=#65 id=65 data-nosnippet>65</a>
<a href=#66 id=66 data-nosnippet>66</a><span class="kw">impl</span>&lt;<span class="lifetime">'de</span>&gt; Deserialize&lt;<span class="lifetime">'de</span>&gt; <span class="kw">for </span>Schema {
<a href=#67 id=67 data-nosnippet>67</a> <span class="kw">fn </span>deserialize&lt;D&gt;(deserializer: D) -&gt; std::result::Result&lt;<span class="self">Self</span>, D::Error&gt;
<a href=#68 id=68 data-nosnippet>68</a> <span class="kw">where
<a href=#69 id=69 data-nosnippet>69</a> </span>D: Deserializer&lt;<span class="lifetime">'de</span>&gt;,
<a href=#70 id=70 data-nosnippet>70</a> {
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">use </span>serde::de::Error;
<a href=#72 id=72 data-nosnippet>72</a>
<a href=#73 id=73 data-nosnippet>73</a> <span class="attr">#[derive(Deserialize)]
<a href=#74 id=74 data-nosnippet>74</a> </span><span class="kw">struct </span>RawSchema {
<a href=#75 id=75 data-nosnippet>75</a> column_schemas: Vec&lt;ColumnSchema&gt;,
<a href=#76 id=76 data-nosnippet>76</a> version: u32,
<a href=#77 id=77 data-nosnippet>77</a> }
<a href=#78 id=78 data-nosnippet>78</a> <span class="kw">let </span>raw = RawSchema::deserialize(deserializer)<span class="question-mark">?</span>;
<a href=#79 id=79 data-nosnippet>79</a>
<a href=#80 id=80 data-nosnippet>80</a> SchemaBuilder::try_from(raw.column_schemas)
<a href=#81 id=81 data-nosnippet>81</a> .and_then(|x| x.version(raw.version).build())
<a href=#82 id=82 data-nosnippet>82</a> .map_err(D::Error::custom)
<a href=#83 id=83 data-nosnippet>83</a> }
<a href=#84 id=84 data-nosnippet>84</a>}
<a href=#85 id=85 data-nosnippet>85</a>
<a href=#86 id=86 data-nosnippet>86</a><span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Schema {
<a href=#87 id=87 data-nosnippet>87</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter) -&gt; fmt::Result {
<a href=#88 id=88 data-nosnippet>88</a> f.debug_struct(<span class="string">"Schema"</span>)
<a href=#89 id=89 data-nosnippet>89</a> .field(<span class="string">"column_schemas"</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.column_schemas)
<a href=#90 id=90 data-nosnippet>90</a> .field(<span class="string">"name_to_index"</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.name_to_index)
<a href=#91 id=91 data-nosnippet>91</a> .field(<span class="string">"timestamp_index"</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.timestamp_index)
<a href=#92 id=92 data-nosnippet>92</a> .field(<span class="string">"version"</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.version)
<a href=#93 id=93 data-nosnippet>93</a> .finish()
<a href=#94 id=94 data-nosnippet>94</a> }
<a href=#95 id=95 data-nosnippet>95</a>}
<a href=#96 id=96 data-nosnippet>96</a>
<a href=#97 id=97 data-nosnippet>97</a><span class="kw">impl </span>Schema {
<a href=#98 id=98 data-nosnippet>98</a> <span class="doccomment">/// Initial version of the schema.
<a href=#99 id=99 data-nosnippet>99</a> </span><span class="kw">pub const </span>INITIAL_VERSION: u32 = <span class="number">0</span>;
<a href=#100 id=100 data-nosnippet>100</a>
<a href=#101 id=101 data-nosnippet>101</a> <span class="doccomment">/// Create a schema from a vector of [ColumnSchema].
<a href=#102 id=102 data-nosnippet>102</a> ///
<a href=#103 id=103 data-nosnippet>103</a> /// # Panics
<a href=#104 id=104 data-nosnippet>104</a> /// Panics when ColumnSchema's `default_constraint` can't be serialized into json.
<a href=#105 id=105 data-nosnippet>105</a> </span><span class="kw">pub fn </span>new(column_schemas: Vec&lt;ColumnSchema&gt;) -&gt; Schema {
<a href=#106 id=106 data-nosnippet>106</a> <span class="comment">// Builder won't fail in this case
<a href=#107 id=107 data-nosnippet>107</a> </span><span class="self">Self</span>::new_with_version(column_schemas, <span class="self">Self</span>::INITIAL_VERSION)
<a href=#108 id=108 data-nosnippet>108</a> }
<a href=#109 id=109 data-nosnippet>109</a>
<a href=#110 id=110 data-nosnippet>110</a> <span class="kw">pub fn </span>new_with_version(column_schemas: Vec&lt;ColumnSchema&gt;, version: u32) -&gt; Schema {
<a href=#111 id=111 data-nosnippet>111</a> SchemaBuilder::try_from(column_schemas)
<a href=#112 id=112 data-nosnippet>112</a> .unwrap()
<a href=#113 id=113 data-nosnippet>113</a> .version(version)
<a href=#114 id=114 data-nosnippet>114</a> .build()
<a href=#115 id=115 data-nosnippet>115</a> .unwrap()
<a href=#116 id=116 data-nosnippet>116</a> }
<a href=#117 id=117 data-nosnippet>117</a>
<a href=#118 id=118 data-nosnippet>118</a> <span class="doccomment">/// Try to Create a schema from a vector of [ColumnSchema].
<a href=#119 id=119 data-nosnippet>119</a> </span><span class="kw">pub fn </span>try_new(column_schemas: Vec&lt;ColumnSchema&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;Schema&gt; {
<a href=#120 id=120 data-nosnippet>120</a> SchemaBuilder::try_from(column_schemas)<span class="question-mark">?</span>.build()
<a href=#121 id=121 data-nosnippet>121</a> }
<a href=#122 id=122 data-nosnippet>122</a>
<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">pub fn </span>arrow_schema(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>Arc&lt;ArrowSchema&gt; {
<a href=#124 id=124 data-nosnippet>124</a> <span class="kw-2">&amp;</span><span class="self">self</span>.arrow_schema
<a href=#125 id=125 data-nosnippet>125</a> }
<a href=#126 id=126 data-nosnippet>126</a>
<a href=#127 id=127 data-nosnippet>127</a> <span class="kw">pub fn </span>column_schemas(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[ColumnSchema] {
<a href=#128 id=128 data-nosnippet>128</a> <span class="kw-2">&amp;</span><span class="self">self</span>.column_schemas
<a href=#129 id=129 data-nosnippet>129</a> }
<a href=#130 id=130 data-nosnippet>130</a>
<a href=#131 id=131 data-nosnippet>131</a> <span class="kw">pub fn </span>column_schema_by_name(<span class="kw-2">&amp;</span><span class="self">self</span>, name: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>ColumnSchema&gt; {
<a href=#132 id=132 data-nosnippet>132</a> <span class="self">self</span>.name_to_index
<a href=#133 id=133 data-nosnippet>133</a> .get(name)
<a href=#134 id=134 data-nosnippet>134</a> .map(|index| <span class="kw-2">&amp;</span><span class="self">self</span>.column_schemas[<span class="kw-2">*</span>index])
<a href=#135 id=135 data-nosnippet>135</a> }
<a href=#136 id=136 data-nosnippet>136</a>
<a href=#137 id=137 data-nosnippet>137</a> <span class="doccomment">/// Retrieve the column's name by index
<a href=#138 id=138 data-nosnippet>138</a> /// # Panics
<a href=#139 id=139 data-nosnippet>139</a> /// This method **may** panic if the index is out of range of column schemas.
<a href=#140 id=140 data-nosnippet>140</a> </span><span class="kw">pub fn </span>column_name_by_index(<span class="kw-2">&amp;</span><span class="self">self</span>, idx: usize) -&gt; <span class="kw-2">&amp;</span>str {
<a href=#141 id=141 data-nosnippet>141</a> <span class="kw-2">&amp;</span><span class="self">self</span>.column_schemas[idx].name
<a href=#142 id=142 data-nosnippet>142</a> }
<a href=#143 id=143 data-nosnippet>143</a>
<a href=#144 id=144 data-nosnippet>144</a> <span class="kw">pub fn </span>column_index_by_name(<span class="kw-2">&amp;</span><span class="self">self</span>, name: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Option</span>&lt;usize&gt; {
<a href=#145 id=145 data-nosnippet>145</a> <span class="self">self</span>.name_to_index.get(name).copied()
<a href=#146 id=146 data-nosnippet>146</a> }
<a href=#147 id=147 data-nosnippet>147</a>
<a href=#148 id=148 data-nosnippet>148</a> <span class="kw">pub fn </span>contains_column(<span class="kw-2">&amp;</span><span class="self">self</span>, name: <span class="kw-2">&amp;</span>str) -&gt; bool {
<a href=#149 id=149 data-nosnippet>149</a> <span class="self">self</span>.name_to_index.contains_key(name)
<a href=#150 id=150 data-nosnippet>150</a> }
<a href=#151 id=151 data-nosnippet>151</a>
<a href=#152 id=152 data-nosnippet>152</a> <span class="kw">pub fn </span>num_columns(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#153 id=153 data-nosnippet>153</a> <span class="self">self</span>.column_schemas.len()
<a href=#154 id=154 data-nosnippet>154</a> }
<a href=#155 id=155 data-nosnippet>155</a>
<a href=#156 id=156 data-nosnippet>156</a> <span class="kw">pub fn </span>is_empty(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#157 id=157 data-nosnippet>157</a> <span class="self">self</span>.column_schemas.is_empty()
<a href=#158 id=158 data-nosnippet>158</a> }
<a href=#159 id=159 data-nosnippet>159</a>
<a href=#160 id=160 data-nosnippet>160</a> <span class="doccomment">/// Returns index of the timestamp key column.
<a href=#161 id=161 data-nosnippet>161</a> </span><span class="kw">pub fn </span>timestamp_index(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;usize&gt; {
<a href=#162 id=162 data-nosnippet>162</a> <span class="self">self</span>.timestamp_index
<a href=#163 id=163 data-nosnippet>163</a> }
<a href=#164 id=164 data-nosnippet>164</a>
<a href=#165 id=165 data-nosnippet>165</a> <span class="kw">pub fn </span>timestamp_column(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>ColumnSchema&gt; {
<a href=#166 id=166 data-nosnippet>166</a> <span class="self">self</span>.timestamp_index.map(|idx| <span class="kw-2">&amp;</span><span class="self">self</span>.column_schemas[idx])
<a href=#167 id=167 data-nosnippet>167</a> }
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a> <span class="kw">pub fn </span>version(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; u32 {
<a href=#170 id=170 data-nosnippet>170</a> <span class="self">self</span>.version
<a href=#171 id=171 data-nosnippet>171</a> }
<a href=#172 id=172 data-nosnippet>172</a>
<a href=#173 id=173 data-nosnippet>173</a> <span class="kw">pub fn </span>metadata(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>HashMap&lt;String, String&gt; {
<a href=#174 id=174 data-nosnippet>174</a> <span class="kw-2">&amp;</span><span class="self">self</span>.arrow_schema.metadata
<a href=#175 id=175 data-nosnippet>175</a> }
<a href=#176 id=176 data-nosnippet>176</a>
<a href=#177 id=177 data-nosnippet>177</a> <span class="doccomment">/// Returns the estimated memory footprint of this schema.
<a href=#178 id=178 data-nosnippet>178</a> </span><span class="kw">pub fn </span>estimated_size(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#179 id=179 data-nosnippet>179</a> mem::size_of_val(<span class="self">self</span>)
<a href=#180 id=180 data-nosnippet>180</a> + mem::size_of::&lt;ColumnSchema&gt;() * <span class="self">self</span>.column_schemas.capacity()
<a href=#181 id=181 data-nosnippet>181</a> + <span class="self">self
<a href=#182 id=182 data-nosnippet>182</a> </span>.column_schemas
<a href=#183 id=183 data-nosnippet>183</a> .iter()
<a href=#184 id=184 data-nosnippet>184</a> .map(|column_schema| {
<a href=#185 id=185 data-nosnippet>185</a> column_schema.estimated_size() - mem::size_of::&lt;ColumnSchema&gt;()
<a href=#186 id=186 data-nosnippet>186</a> })
<a href=#187 id=187 data-nosnippet>187</a> .sum::&lt;usize&gt;()
<a href=#188 id=188 data-nosnippet>188</a> + mem::size_of::&lt;(String, usize)&gt;() * <span class="self">self</span>.name_to_index.capacity()
<a href=#189 id=189 data-nosnippet>189</a> + <span class="self">self
<a href=#190 id=190 data-nosnippet>190</a> </span>.name_to_index
<a href=#191 id=191 data-nosnippet>191</a> .keys()
<a href=#192 id=192 data-nosnippet>192</a> .map(|name| name.capacity())
<a href=#193 id=193 data-nosnippet>193</a> .sum::&lt;usize&gt;()
<a href=#194 id=194 data-nosnippet>194</a> + arrow_schema_size(<span class="self">self</span>.arrow_schema.as_ref())
<a href=#195 id=195 data-nosnippet>195</a> }
<a href=#196 id=196 data-nosnippet>196</a>
<a href=#197 id=197 data-nosnippet>197</a> <span class="doccomment">/// Generate a new projected schema
<a href=#198 id=198 data-nosnippet>198</a> ///
<a href=#199 id=199 data-nosnippet>199</a> /// # Panic
<a href=#200 id=200 data-nosnippet>200</a> ///
<a href=#201 id=201 data-nosnippet>201</a> /// If the index out ouf bound
<a href=#202 id=202 data-nosnippet>202</a> </span><span class="kw">pub fn </span>try_project(<span class="kw-2">&amp;</span><span class="self">self</span>, indices: <span class="kw-2">&amp;</span>[usize]) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#203 id=203 data-nosnippet>203</a> <span class="kw">let </span><span class="kw-2">mut </span>column_schemas = Vec::with_capacity(indices.len());
<a href=#204 id=204 data-nosnippet>204</a> <span class="kw">let </span><span class="kw-2">mut </span>timestamp_index = <span class="prelude-val">None</span>;
<a href=#205 id=205 data-nosnippet>205</a> <span class="kw">for </span>index <span class="kw">in </span>indices {
<a href=#206 id=206 data-nosnippet>206</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(ts_index) = <span class="self">self</span>.timestamp_index
<a href=#207 id=207 data-nosnippet>207</a> &amp;&amp; ts_index == <span class="kw-2">*</span>index
<a href=#208 id=208 data-nosnippet>208</a> {
<a href=#209 id=209 data-nosnippet>209</a> timestamp_index = <span class="prelude-val">Some</span>(column_schemas.len());
<a href=#210 id=210 data-nosnippet>210</a> }
<a href=#211 id=211 data-nosnippet>211</a> column_schemas.push(<span class="self">self</span>.column_schemas[<span class="kw-2">*</span>index].clone());
<a href=#212 id=212 data-nosnippet>212</a> }
<a href=#213 id=213 data-nosnippet>213</a> <span class="kw">let </span>arrow_schema = <span class="self">self
<a href=#214 id=214 data-nosnippet>214</a> </span>.arrow_schema
<a href=#215 id=215 data-nosnippet>215</a> .project(indices)
<a href=#216 id=216 data-nosnippet>216</a> .context(ProjectArrowSchemaSnafu)<span class="question-mark">?</span>;
<a href=#217 id=217 data-nosnippet>217</a> <span class="kw">let </span>name_to_index = column_schemas
<a href=#218 id=218 data-nosnippet>218</a> .iter()
<a href=#219 id=219 data-nosnippet>219</a> .enumerate()
<a href=#220 id=220 data-nosnippet>220</a> .map(|(pos, column_schema)| (column_schema.name.clone(), pos))
<a href=#221 id=221 data-nosnippet>221</a> .collect();
<a href=#222 id=222 data-nosnippet>222</a>
<a href=#223 id=223 data-nosnippet>223</a> <span class="prelude-val">Ok</span>(<span class="self">Self </span>{
<a href=#224 id=224 data-nosnippet>224</a> column_schemas,
<a href=#225 id=225 data-nosnippet>225</a> name_to_index,
<a href=#226 id=226 data-nosnippet>226</a> arrow_schema: Arc::new(arrow_schema),
<a href=#227 id=227 data-nosnippet>227</a> timestamp_index,
<a href=#228 id=228 data-nosnippet>228</a> version: <span class="self">self</span>.version,
<a href=#229 id=229 data-nosnippet>229</a> })
<a href=#230 id=230 data-nosnippet>230</a> }
<a href=#231 id=231 data-nosnippet>231</a>}
<a href=#232 id=232 data-nosnippet>232</a>
<a href=#233 id=233 data-nosnippet>233</a><span class="kw">fn </span>arrow_schema_size(schema: <span class="kw-2">&amp;</span>ArrowSchema) -&gt; usize {
<a href=#234 id=234 data-nosnippet>234</a> mem::size_of_val(schema)
<a href=#235 id=235 data-nosnippet>235</a> + schema.fields.size()
<a href=#236 id=236 data-nosnippet>236</a> + mem::size_of::&lt;(String, String)&gt;() * schema.metadata.capacity()
<a href=#237 id=237 data-nosnippet>237</a> + schema
<a href=#238 id=238 data-nosnippet>238</a> .metadata
<a href=#239 id=239 data-nosnippet>239</a> .iter()
<a href=#240 id=240 data-nosnippet>240</a> .map(|(key, value)| key.capacity() + value.capacity())
<a href=#241 id=241 data-nosnippet>241</a> .sum::&lt;usize&gt;()
<a href=#242 id=242 data-nosnippet>242</a>}
<a href=#243 id=243 data-nosnippet>243</a>
<a href=#244 id=244 data-nosnippet>244</a><span class="attr">#[derive(Default)]
<a href=#245 id=245 data-nosnippet>245</a></span><span class="kw">pub struct </span>SchemaBuilder {
<a href=#246 id=246 data-nosnippet>246</a> column_schemas: Vec&lt;ColumnSchema&gt;,
<a href=#247 id=247 data-nosnippet>247</a> name_to_index: HashMap&lt;String, usize&gt;,
<a href=#248 id=248 data-nosnippet>248</a> fields: Vec&lt;Field&gt;,
<a href=#249 id=249 data-nosnippet>249</a> timestamp_index: <span class="prelude-ty">Option</span>&lt;usize&gt;,
<a href=#250 id=250 data-nosnippet>250</a> version: u32,
<a href=#251 id=251 data-nosnippet>251</a> metadata: HashMap&lt;String, String&gt;,
<a href=#252 id=252 data-nosnippet>252</a>}
<a href=#253 id=253 data-nosnippet>253</a>
<a href=#254 id=254 data-nosnippet>254</a><span class="kw">impl </span>TryFrom&lt;Vec&lt;ColumnSchema&gt;&gt; <span class="kw">for </span>SchemaBuilder {
<a href=#255 id=255 data-nosnippet>255</a> <span class="kw">type </span>Error = Error;
<a href=#256 id=256 data-nosnippet>256</a>
<a href=#257 id=257 data-nosnippet>257</a> <span class="kw">fn </span>try_from(column_schemas: Vec&lt;ColumnSchema&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;SchemaBuilder&gt; {
<a href=#258 id=258 data-nosnippet>258</a> SchemaBuilder::try_from_columns(column_schemas)
<a href=#259 id=259 data-nosnippet>259</a> }
<a href=#260 id=260 data-nosnippet>260</a>}
<a href=#261 id=261 data-nosnippet>261</a>
<a href=#262 id=262 data-nosnippet>262</a><span class="kw">impl </span>SchemaBuilder {
<a href=#263 id=263 data-nosnippet>263</a> <span class="kw">pub fn </span>try_from_columns(column_schemas: Vec&lt;ColumnSchema&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#264 id=264 data-nosnippet>264</a> <span class="kw">let </span>FieldsAndIndices {
<a href=#265 id=265 data-nosnippet>265</a> fields,
<a href=#266 id=266 data-nosnippet>266</a> name_to_index,
<a href=#267 id=267 data-nosnippet>267</a> timestamp_index,
<a href=#268 id=268 data-nosnippet>268</a> } = collect_fields(<span class="kw-2">&amp;</span>column_schemas)<span class="question-mark">?</span>;
<a href=#269 id=269 data-nosnippet>269</a>
<a href=#270 id=270 data-nosnippet>270</a> <span class="prelude-val">Ok</span>(<span class="self">Self </span>{
<a href=#271 id=271 data-nosnippet>271</a> column_schemas,
<a href=#272 id=272 data-nosnippet>272</a> name_to_index,
<a href=#273 id=273 data-nosnippet>273</a> fields,
<a href=#274 id=274 data-nosnippet>274</a> timestamp_index,
<a href=#275 id=275 data-nosnippet>275</a> ..Default::default()
<a href=#276 id=276 data-nosnippet>276</a> })
<a href=#277 id=277 data-nosnippet>277</a> }
<a href=#278 id=278 data-nosnippet>278</a>
<a href=#279 id=279 data-nosnippet>279</a> <span class="kw">pub fn </span>version(<span class="kw-2">mut </span><span class="self">self</span>, version: u32) -&gt; <span class="self">Self </span>{
<a href=#280 id=280 data-nosnippet>280</a> <span class="self">self</span>.version = version;
<a href=#281 id=281 data-nosnippet>281</a> <span class="self">self
<a href=#282 id=282 data-nosnippet>282</a> </span>}
<a href=#283 id=283 data-nosnippet>283</a>
<a href=#284 id=284 data-nosnippet>284</a> <span class="doccomment">/// Add key value pair to metadata.
<a href=#285 id=285 data-nosnippet>285</a> ///
<a href=#286 id=286 data-nosnippet>286</a> /// Old metadata with same key would be overwritten.
<a href=#287 id=287 data-nosnippet>287</a> </span><span class="kw">pub fn </span>add_metadata(<span class="kw-2">mut </span><span class="self">self</span>, key: <span class="kw">impl </span>Into&lt;String&gt;, value: <span class="kw">impl </span>Into&lt;String&gt;) -&gt; <span class="self">Self </span>{
<a href=#288 id=288 data-nosnippet>288</a> <span class="kw">let _ </span>= <span class="self">self</span>.metadata.insert(key.into(), value.into());
<a href=#289 id=289 data-nosnippet>289</a> <span class="self">self
<a href=#290 id=290 data-nosnippet>290</a> </span>}
<a href=#291 id=291 data-nosnippet>291</a>
<a href=#292 id=292 data-nosnippet>292</a> <span class="kw">pub fn </span>build(<span class="kw-2">mut </span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;Schema&gt; {
<a href=#293 id=293 data-nosnippet>293</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(timestamp_index) = <span class="self">self</span>.timestamp_index {
<a href=#294 id=294 data-nosnippet>294</a> validate_timestamp_index(<span class="kw-2">&amp;</span><span class="self">self</span>.column_schemas, timestamp_index)<span class="question-mark">?</span>;
<a href=#295 id=295 data-nosnippet>295</a> }
<a href=#296 id=296 data-nosnippet>296</a>
<a href=#297 id=297 data-nosnippet>297</a> <span class="self">self</span>.metadata
<a href=#298 id=298 data-nosnippet>298</a> .insert(VERSION_KEY.to_string(), <span class="self">self</span>.version.to_string());
<a href=#299 id=299 data-nosnippet>299</a>
<a href=#300 id=300 data-nosnippet>300</a> <span class="kw">let </span>arrow_schema = ArrowSchema::new(<span class="self">self</span>.fields).with_metadata(<span class="self">self</span>.metadata);
<a href=#301 id=301 data-nosnippet>301</a>
<a href=#302 id=302 data-nosnippet>302</a> <span class="prelude-val">Ok</span>(Schema {
<a href=#303 id=303 data-nosnippet>303</a> column_schemas: <span class="self">self</span>.column_schemas,
<a href=#304 id=304 data-nosnippet>304</a> name_to_index: <span class="self">self</span>.name_to_index,
<a href=#305 id=305 data-nosnippet>305</a> arrow_schema: Arc::new(arrow_schema),
<a href=#306 id=306 data-nosnippet>306</a> timestamp_index: <span class="self">self</span>.timestamp_index,
<a href=#307 id=307 data-nosnippet>307</a> version: <span class="self">self</span>.version,
<a href=#308 id=308 data-nosnippet>308</a> })
<a href=#309 id=309 data-nosnippet>309</a> }
<a href=#310 id=310 data-nosnippet>310</a>}
<a href=#311 id=311 data-nosnippet>311</a>
<a href=#312 id=312 data-nosnippet>312</a><span class="kw">struct </span>FieldsAndIndices {
<a href=#313 id=313 data-nosnippet>313</a> fields: Vec&lt;Field&gt;,
<a href=#314 id=314 data-nosnippet>314</a> name_to_index: HashMap&lt;String, usize&gt;,
<a href=#315 id=315 data-nosnippet>315</a> timestamp_index: <span class="prelude-ty">Option</span>&lt;usize&gt;,
<a href=#316 id=316 data-nosnippet>316</a>}
<a href=#317 id=317 data-nosnippet>317</a>
<a href=#318 id=318 data-nosnippet>318</a><span class="kw">fn </span>collect_fields(column_schemas: <span class="kw-2">&amp;</span>[ColumnSchema]) -&gt; <span class="prelude-ty">Result</span>&lt;FieldsAndIndices&gt; {
<a href=#319 id=319 data-nosnippet>319</a> <span class="kw">let </span><span class="kw-2">mut </span>fields = Vec::with_capacity(column_schemas.len());
<a href=#320 id=320 data-nosnippet>320</a> <span class="kw">let </span><span class="kw-2">mut </span>name_to_index = HashMap::with_capacity(column_schemas.len());
<a href=#321 id=321 data-nosnippet>321</a> <span class="kw">let </span><span class="kw-2">mut </span>timestamp_index = <span class="prelude-val">None</span>;
<a href=#322 id=322 data-nosnippet>322</a> <span class="kw">for </span>(index, column_schema) <span class="kw">in </span>column_schemas.iter().enumerate() {
<a href=#323 id=323 data-nosnippet>323</a> <span class="kw">if </span>column_schema.is_time_index() &amp;&amp; timestamp_index.is_none() {
<a href=#324 id=324 data-nosnippet>324</a> timestamp_index = <span class="prelude-val">Some</span>(index);
<a href=#325 id=325 data-nosnippet>325</a> }
<a href=#326 id=326 data-nosnippet>326</a> <span class="kw">let </span><span class="kw-2">mut </span>field = Field::try_from(column_schema)<span class="question-mark">?</span>;
<a href=#327 id=327 data-nosnippet>327</a>
<a href=#328 id=328 data-nosnippet>328</a> <span class="comment">// Column with type Json or Vector performs the same as binary column in Arrow, so we need to mark it
<a href=#329 id=329 data-nosnippet>329</a> </span><span class="kw">let </span>extype = <span class="kw">match </span>column_schema.data_type {
<a href=#330 id=330 data-nosnippet>330</a> ConcreteDataType::Json(<span class="kw">_</span>) =&gt; <span class="prelude-val">Some</span>(ColumnExtType::Json),
<a href=#331 id=331 data-nosnippet>331</a> ConcreteDataType::Vector(d) =&gt; <span class="prelude-val">Some</span>(ColumnExtType::Vector(d.dim)),
<a href=#332 id=332 data-nosnippet>332</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#333 id=333 data-nosnippet>333</a> };
<a href=#334 id=334 data-nosnippet>334</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(extype) = extype {
<a href=#335 id=335 data-nosnippet>335</a> field
<a href=#336 id=336 data-nosnippet>336</a> .metadata_mut()
<a href=#337 id=337 data-nosnippet>337</a> .insert(TYPE_KEY.to_string(), extype.to_string());
<a href=#338 id=338 data-nosnippet>338</a> }
<a href=#339 id=339 data-nosnippet>339</a> fields.push(field);
<a href=#340 id=340 data-nosnippet>340</a> <span class="macro">ensure!</span>(
<a href=#341 id=341 data-nosnippet>341</a> name_to_index
<a href=#342 id=342 data-nosnippet>342</a> .insert(column_schema.name.clone(), index)
<a href=#343 id=343 data-nosnippet>343</a> .is_none(),
<a href=#344 id=344 data-nosnippet>344</a> DuplicateColumnSnafu {
<a href=#345 id=345 data-nosnippet>345</a> column: <span class="kw-2">&amp;</span>column_schema.name,
<a href=#346 id=346 data-nosnippet>346</a> }
<a href=#347 id=347 data-nosnippet>347</a> );
<a href=#348 id=348 data-nosnippet>348</a> }
<a href=#349 id=349 data-nosnippet>349</a>
<a href=#350 id=350 data-nosnippet>350</a> <span class="prelude-val">Ok</span>(FieldsAndIndices {
<a href=#351 id=351 data-nosnippet>351</a> fields,
<a href=#352 id=352 data-nosnippet>352</a> name_to_index,
<a href=#353 id=353 data-nosnippet>353</a> timestamp_index,
<a href=#354 id=354 data-nosnippet>354</a> })
<a href=#355 id=355 data-nosnippet>355</a>}
<a href=#356 id=356 data-nosnippet>356</a>
<a href=#357 id=357 data-nosnippet>357</a><span class="kw">fn </span>validate_timestamp_index(column_schemas: <span class="kw-2">&amp;</span>[ColumnSchema], timestamp_index: usize) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#358 id=358 data-nosnippet>358</a> <span class="macro">ensure!</span>(
<a href=#359 id=359 data-nosnippet>359</a> timestamp_index &lt; column_schemas.len(),
<a href=#360 id=360 data-nosnippet>360</a> error::InvalidTimestampIndexSnafu {
<a href=#361 id=361 data-nosnippet>361</a> index: timestamp_index,
<a href=#362 id=362 data-nosnippet>362</a> }
<a href=#363 id=363 data-nosnippet>363</a> );
<a href=#364 id=364 data-nosnippet>364</a>
<a href=#365 id=365 data-nosnippet>365</a> <span class="kw">let </span>column_schema = <span class="kw-2">&amp;</span>column_schemas[timestamp_index];
<a href=#366 id=366 data-nosnippet>366</a> <span class="macro">ensure!</span>(
<a href=#367 id=367 data-nosnippet>367</a> column_schema.data_type.is_timestamp(),
<a href=#368 id=368 data-nosnippet>368</a> error::InvalidTimestampIndexSnafu {
<a href=#369 id=369 data-nosnippet>369</a> index: timestamp_index,
<a href=#370 id=370 data-nosnippet>370</a> }
<a href=#371 id=371 data-nosnippet>371</a> );
<a href=#372 id=372 data-nosnippet>372</a> <span class="macro">ensure!</span>(
<a href=#373 id=373 data-nosnippet>373</a> column_schema.is_time_index(),
<a href=#374 id=374 data-nosnippet>374</a> error::InvalidTimestampIndexSnafu {
<a href=#375 id=375 data-nosnippet>375</a> index: timestamp_index,
<a href=#376 id=376 data-nosnippet>376</a> }
<a href=#377 id=377 data-nosnippet>377</a> );
<a href=#378 id=378 data-nosnippet>378</a>
<a href=#379 id=379 data-nosnippet>379</a> <span class="prelude-val">Ok</span>(())
<a href=#380 id=380 data-nosnippet>380</a>}
<a href=#381 id=381 data-nosnippet>381</a>
<a href=#382 id=382 data-nosnippet>382</a><span class="kw">pub type </span>SchemaRef = Arc&lt;Schema&gt;;
<a href=#383 id=383 data-nosnippet>383</a>
<a href=#384 id=384 data-nosnippet>384</a><span class="kw">impl </span>TryFrom&lt;Arc&lt;ArrowSchema&gt;&gt; <span class="kw">for </span>Schema {
<a href=#385 id=385 data-nosnippet>385</a> <span class="kw">type </span>Error = Error;
<a href=#386 id=386 data-nosnippet>386</a>
<a href=#387 id=387 data-nosnippet>387</a> <span class="kw">fn </span>try_from(arrow_schema: Arc&lt;ArrowSchema&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;Schema&gt; {
<a href=#388 id=388 data-nosnippet>388</a> <span class="kw">let </span><span class="kw-2">mut </span>column_schemas = Vec::with_capacity(arrow_schema.fields.len());
<a href=#389 id=389 data-nosnippet>389</a> <span class="kw">let </span><span class="kw-2">mut </span>name_to_index = HashMap::with_capacity(arrow_schema.fields.len());
<a href=#390 id=390 data-nosnippet>390</a> <span class="kw">for </span>field <span class="kw">in </span><span class="kw-2">&amp;</span>arrow_schema.fields {
<a href=#391 id=391 data-nosnippet>391</a> <span class="kw">let </span>column_schema = ColumnSchema::try_from(field.as_ref())<span class="question-mark">?</span>;
<a href=#392 id=392 data-nosnippet>392</a> <span class="kw">let _ </span>= name_to_index.insert(field.name().clone(), column_schemas.len());
<a href=#393 id=393 data-nosnippet>393</a> column_schemas.push(column_schema);
<a href=#394 id=394 data-nosnippet>394</a> }
<a href=#395 id=395 data-nosnippet>395</a>
<a href=#396 id=396 data-nosnippet>396</a> <span class="kw">let </span><span class="kw-2">mut </span>timestamp_index = <span class="prelude-val">None</span>;
<a href=#397 id=397 data-nosnippet>397</a> <span class="kw">for </span>(index, column_schema) <span class="kw">in </span>column_schemas.iter().enumerate() {
<a href=#398 id=398 data-nosnippet>398</a> <span class="kw">if </span>column_schema.is_time_index() {
<a href=#399 id=399 data-nosnippet>399</a> validate_timestamp_index(<span class="kw-2">&amp;</span>column_schemas, index)<span class="question-mark">?</span>;
<a href=#400 id=400 data-nosnippet>400</a> timestamp_index = <span class="prelude-val">Some</span>(index);
<a href=#401 id=401 data-nosnippet>401</a> <span class="kw">break</span>;
<a href=#402 id=402 data-nosnippet>402</a> }
<a href=#403 id=403 data-nosnippet>403</a> }
<a href=#404 id=404 data-nosnippet>404</a>
<a href=#405 id=405 data-nosnippet>405</a> <span class="kw">let </span>version = try_parse_version(<span class="kw-2">&amp;</span>arrow_schema.metadata, VERSION_KEY)<span class="question-mark">?</span>;
<a href=#406 id=406 data-nosnippet>406</a>
<a href=#407 id=407 data-nosnippet>407</a> <span class="prelude-val">Ok</span>(<span class="self">Self </span>{
<a href=#408 id=408 data-nosnippet>408</a> column_schemas,
<a href=#409 id=409 data-nosnippet>409</a> name_to_index,
<a href=#410 id=410 data-nosnippet>410</a> arrow_schema,
<a href=#411 id=411 data-nosnippet>411</a> timestamp_index,
<a href=#412 id=412 data-nosnippet>412</a> version,
<a href=#413 id=413 data-nosnippet>413</a> })
<a href=#414 id=414 data-nosnippet>414</a> }
<a href=#415 id=415 data-nosnippet>415</a>}
<a href=#416 id=416 data-nosnippet>416</a>
<a href=#417 id=417 data-nosnippet>417</a><span class="kw">impl </span>TryFrom&lt;ArrowSchema&gt; <span class="kw">for </span>Schema {
<a href=#418 id=418 data-nosnippet>418</a> <span class="kw">type </span>Error = Error;
<a href=#419 id=419 data-nosnippet>419</a>
<a href=#420 id=420 data-nosnippet>420</a> <span class="kw">fn </span>try_from(arrow_schema: ArrowSchema) -&gt; <span class="prelude-ty">Result</span>&lt;Schema&gt; {
<a href=#421 id=421 data-nosnippet>421</a> <span class="kw">let </span>arrow_schema = Arc::new(arrow_schema);
<a href=#422 id=422 data-nosnippet>422</a>
<a href=#423 id=423 data-nosnippet>423</a> Schema::try_from(arrow_schema)
<a href=#424 id=424 data-nosnippet>424</a> }
<a href=#425 id=425 data-nosnippet>425</a>}
<a href=#426 id=426 data-nosnippet>426</a>
<a href=#427 id=427 data-nosnippet>427</a><span class="kw">impl </span>TryFrom&lt;DFSchemaRef&gt; <span class="kw">for </span>Schema {
<a href=#428 id=428 data-nosnippet>428</a> <span class="kw">type </span>Error = Error;
<a href=#429 id=429 data-nosnippet>429</a>
<a href=#430 id=430 data-nosnippet>430</a> <span class="kw">fn </span>try_from(value: DFSchemaRef) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#431 id=431 data-nosnippet>431</a> value.inner().clone().try_into()
<a href=#432 id=432 data-nosnippet>432</a> }
<a href=#433 id=433 data-nosnippet>433</a>}
<a href=#434 id=434 data-nosnippet>434</a>
<a href=#435 id=435 data-nosnippet>435</a><span class="kw">fn </span>try_parse_version(metadata: <span class="kw-2">&amp;</span>HashMap&lt;String, String&gt;, key: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Result</span>&lt;u32&gt; {
<a href=#436 id=436 data-nosnippet>436</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(value) = metadata.get(key) {
<a href=#437 id=437 data-nosnippet>437</a> <span class="kw">let </span>version = value
<a href=#438 id=438 data-nosnippet>438</a> .parse()
<a href=#439 id=439 data-nosnippet>439</a> .context(error::ParseSchemaVersionSnafu { value })<span class="question-mark">?</span>;
<a href=#440 id=440 data-nosnippet>440</a>
<a href=#441 id=441 data-nosnippet>441</a> <span class="prelude-val">Ok</span>(version)
<a href=#442 id=442 data-nosnippet>442</a> } <span class="kw">else </span>{
<a href=#443 id=443 data-nosnippet>443</a> <span class="prelude-val">Ok</span>(Schema::INITIAL_VERSION)
<a href=#444 id=444 data-nosnippet>444</a> }
<a href=#445 id=445 data-nosnippet>445</a>}
<a href=#446 id=446 data-nosnippet>446</a>
<a href=#447 id=447 data-nosnippet>447</a><span class="attr">#[cfg(test)]
<a href=#448 id=448 data-nosnippet>448</a></span><span class="kw">mod </span>tests {
<a href=#449 id=449 data-nosnippet>449</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#450 id=450 data-nosnippet>450</a> <span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#451 id=451 data-nosnippet>451</a>
<a href=#452 id=452 data-nosnippet>452</a> <span class="attr">#[test]
<a href=#453 id=453 data-nosnippet>453</a> </span><span class="kw">fn </span>test_build_empty_schema() {
<a href=#454 id=454 data-nosnippet>454</a> <span class="kw">let </span>schema = SchemaBuilder::default().build().unwrap();
<a href=#455 id=455 data-nosnippet>455</a> <span class="macro">assert_eq!</span>(<span class="number">0</span>, schema.num_columns());
<a href=#456 id=456 data-nosnippet>456</a> <span class="macro">assert!</span>(schema.is_empty());
<a href=#457 id=457 data-nosnippet>457</a> }
<a href=#458 id=458 data-nosnippet>458</a>
<a href=#459 id=459 data-nosnippet>459</a> <span class="attr">#[test]
<a href=#460 id=460 data-nosnippet>460</a> </span><span class="kw">fn </span>test_schema_no_timestamp() {
<a href=#461 id=461 data-nosnippet>461</a> <span class="kw">let </span>column_schemas = <span class="macro">vec!</span>[
<a href=#462 id=462 data-nosnippet>462</a> ColumnSchema::new(<span class="string">"col1"</span>, ConcreteDataType::int32_datatype(), <span class="bool-val">false</span>),
<a href=#463 id=463 data-nosnippet>463</a> ColumnSchema::new(<span class="string">"col2"</span>, ConcreteDataType::float64_datatype(), <span class="bool-val">true</span>),
<a href=#464 id=464 data-nosnippet>464</a> ];
<a href=#465 id=465 data-nosnippet>465</a> <span class="kw">let </span>schema = Schema::new(column_schemas.clone());
<a href=#466 id=466 data-nosnippet>466</a>
<a href=#467 id=467 data-nosnippet>467</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, schema.num_columns());
<a href=#468 id=468 data-nosnippet>468</a> <span class="macro">assert!</span>(!schema.is_empty());
<a href=#469 id=469 data-nosnippet>469</a> <span class="macro">assert!</span>(schema.timestamp_index().is_none());
<a href=#470 id=470 data-nosnippet>470</a> <span class="macro">assert!</span>(schema.timestamp_column().is_none());
<a href=#471 id=471 data-nosnippet>471</a> <span class="macro">assert_eq!</span>(Schema::INITIAL_VERSION, schema.version());
<a href=#472 id=472 data-nosnippet>472</a>
<a href=#473 id=473 data-nosnippet>473</a> <span class="kw">for </span>column_schema <span class="kw">in </span><span class="kw-2">&amp;</span>column_schemas {
<a href=#474 id=474 data-nosnippet>474</a> <span class="kw">let </span>found = schema.column_schema_by_name(<span class="kw-2">&amp;</span>column_schema.name).unwrap();
<a href=#475 id=475 data-nosnippet>475</a> <span class="macro">assert_eq!</span>(column_schema, found);
<a href=#476 id=476 data-nosnippet>476</a> }
<a href=#477 id=477 data-nosnippet>477</a> <span class="macro">assert!</span>(schema.column_schema_by_name(<span class="string">"col3"</span>).is_none());
<a href=#478 id=478 data-nosnippet>478</a>
<a href=#479 id=479 data-nosnippet>479</a> <span class="kw">let </span>new_schema = Schema::try_from(schema.arrow_schema().clone()).unwrap();
<a href=#480 id=480 data-nosnippet>480</a>
<a href=#481 id=481 data-nosnippet>481</a> <span class="macro">assert_eq!</span>(schema, new_schema);
<a href=#482 id=482 data-nosnippet>482</a> <span class="macro">assert_eq!</span>(column_schemas, schema.column_schemas());
<a href=#483 id=483 data-nosnippet>483</a> }
<a href=#484 id=484 data-nosnippet>484</a>
<a href=#485 id=485 data-nosnippet>485</a> <span class="attr">#[test]
<a href=#486 id=486 data-nosnippet>486</a> </span><span class="kw">fn </span>test_schema_duplicate_column() {
<a href=#487 id=487 data-nosnippet>487</a> <span class="kw">let </span>column_schemas = <span class="macro">vec!</span>[
<a href=#488 id=488 data-nosnippet>488</a> ColumnSchema::new(<span class="string">"col1"</span>, ConcreteDataType::int32_datatype(), <span class="bool-val">false</span>),
<a href=#489 id=489 data-nosnippet>489</a> ColumnSchema::new(<span class="string">"col1"</span>, ConcreteDataType::float64_datatype(), <span class="bool-val">true</span>),
<a href=#490 id=490 data-nosnippet>490</a> ];
<a href=#491 id=491 data-nosnippet>491</a> <span class="kw">let </span>err = Schema::try_new(column_schemas).unwrap_err();
<a href=#492 id=492 data-nosnippet>492</a>
<a href=#493 id=493 data-nosnippet>493</a> <span class="macro">assert!</span>(
<a href=#494 id=494 data-nosnippet>494</a> <span class="macro">matches!</span>(err, Error::DuplicateColumn { .. }),
<a href=#495 id=495 data-nosnippet>495</a> <span class="string">"expect DuplicateColumn, found {}"</span>,
<a href=#496 id=496 data-nosnippet>496</a> err
<a href=#497 id=497 data-nosnippet>497</a> );
<a href=#498 id=498 data-nosnippet>498</a> }
<a href=#499 id=499 data-nosnippet>499</a>
<a href=#500 id=500 data-nosnippet>500</a> <span class="attr">#[test]
<a href=#501 id=501 data-nosnippet>501</a> </span><span class="kw">fn </span>test_metadata() {
<a href=#502 id=502 data-nosnippet>502</a> <span class="kw">let </span>column_schemas = <span class="macro">vec!</span>[ColumnSchema::new(
<a href=#503 id=503 data-nosnippet>503</a> <span class="string">"col1"</span>,
<a href=#504 id=504 data-nosnippet>504</a> ConcreteDataType::int32_datatype(),
<a href=#505 id=505 data-nosnippet>505</a> <span class="bool-val">false</span>,
<a href=#506 id=506 data-nosnippet>506</a> )];
<a href=#507 id=507 data-nosnippet>507</a> <span class="kw">let </span>schema = SchemaBuilder::try_from(column_schemas)
<a href=#508 id=508 data-nosnippet>508</a> .unwrap()
<a href=#509 id=509 data-nosnippet>509</a> .add_metadata(<span class="string">"k1"</span>, <span class="string">"v1"</span>)
<a href=#510 id=510 data-nosnippet>510</a> .build()
<a href=#511 id=511 data-nosnippet>511</a> .unwrap();
<a href=#512 id=512 data-nosnippet>512</a>
<a href=#513 id=513 data-nosnippet>513</a> <span class="macro">assert_eq!</span>(<span class="string">"v1"</span>, schema.metadata().get(<span class="string">"k1"</span>).unwrap());
<a href=#514 id=514 data-nosnippet>514</a> }
<a href=#515 id=515 data-nosnippet>515</a>
<a href=#516 id=516 data-nosnippet>516</a> <span class="attr">#[test]
<a href=#517 id=517 data-nosnippet>517</a> </span><span class="kw">fn </span>test_schema_with_timestamp() {
<a href=#518 id=518 data-nosnippet>518</a> <span class="kw">let </span>column_schemas = <span class="macro">vec!</span>[
<a href=#519 id=519 data-nosnippet>519</a> ColumnSchema::new(<span class="string">"col1"</span>, ConcreteDataType::int32_datatype(), <span class="bool-val">true</span>),
<a href=#520 id=520 data-nosnippet>520</a> ColumnSchema::new(
<a href=#521 id=521 data-nosnippet>521</a> <span class="string">"ts"</span>,
<a href=#522 id=522 data-nosnippet>522</a> ConcreteDataType::timestamp_millisecond_datatype(),
<a href=#523 id=523 data-nosnippet>523</a> <span class="bool-val">false</span>,
<a href=#524 id=524 data-nosnippet>524</a> )
<a href=#525 id=525 data-nosnippet>525</a> .with_time_index(<span class="bool-val">true</span>),
<a href=#526 id=526 data-nosnippet>526</a> ];
<a href=#527 id=527 data-nosnippet>527</a> <span class="kw">let </span>schema = SchemaBuilder::try_from(column_schemas.clone())
<a href=#528 id=528 data-nosnippet>528</a> .unwrap()
<a href=#529 id=529 data-nosnippet>529</a> .version(<span class="number">123</span>)
<a href=#530 id=530 data-nosnippet>530</a> .build()
<a href=#531 id=531 data-nosnippet>531</a> .unwrap();
<a href=#532 id=532 data-nosnippet>532</a>
<a href=#533 id=533 data-nosnippet>533</a> <span class="macro">assert_eq!</span>(<span class="number">1</span>, schema.timestamp_index().unwrap());
<a href=#534 id=534 data-nosnippet>534</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>column_schemas[<span class="number">1</span>], schema.timestamp_column().unwrap());
<a href=#535 id=535 data-nosnippet>535</a> <span class="macro">assert_eq!</span>(<span class="number">123</span>, schema.version());
<a href=#536 id=536 data-nosnippet>536</a>
<a href=#537 id=537 data-nosnippet>537</a> <span class="kw">let </span>new_schema = Schema::try_from(schema.arrow_schema().clone()).unwrap();
<a href=#538 id=538 data-nosnippet>538</a> <span class="macro">assert_eq!</span>(<span class="number">1</span>, schema.timestamp_index().unwrap());
<a href=#539 id=539 data-nosnippet>539</a> <span class="macro">assert_eq!</span>(schema, new_schema);
<a href=#540 id=540 data-nosnippet>540</a> }
<a href=#541 id=541 data-nosnippet>541</a>
<a href=#542 id=542 data-nosnippet>542</a> <span class="attr">#[test]
<a href=#543 id=543 data-nosnippet>543</a> </span><span class="kw">fn </span>test_schema_wrong_timestamp() {
<a href=#544 id=544 data-nosnippet>544</a> <span class="kw">let </span>column_schemas = <span class="macro">vec!</span>[
<a href=#545 id=545 data-nosnippet>545</a> ColumnSchema::new(<span class="string">"col1"</span>, ConcreteDataType::int32_datatype(), <span class="bool-val">true</span>)
<a href=#546 id=546 data-nosnippet>546</a> .with_time_index(<span class="bool-val">true</span>),
<a href=#547 id=547 data-nosnippet>547</a> ColumnSchema::new(<span class="string">"col2"</span>, ConcreteDataType::float64_datatype(), <span class="bool-val">false</span>),
<a href=#548 id=548 data-nosnippet>548</a> ];
<a href=#549 id=549 data-nosnippet>549</a> <span class="macro">assert!</span>(
<a href=#550 id=550 data-nosnippet>550</a> SchemaBuilder::try_from(column_schemas)
<a href=#551 id=551 data-nosnippet>551</a> .unwrap()
<a href=#552 id=552 data-nosnippet>552</a> .build()
<a href=#553 id=553 data-nosnippet>553</a> .is_err()
<a href=#554 id=554 data-nosnippet>554</a> );
<a href=#555 id=555 data-nosnippet>555</a>
<a href=#556 id=556 data-nosnippet>556</a> <span class="kw">let </span>column_schemas = <span class="macro">vec!</span>[
<a href=#557 id=557 data-nosnippet>557</a> ColumnSchema::new(<span class="string">"col1"</span>, ConcreteDataType::int32_datatype(), <span class="bool-val">true</span>),
<a href=#558 id=558 data-nosnippet>558</a> ColumnSchema::new(<span class="string">"col2"</span>, ConcreteDataType::float64_datatype(), <span class="bool-val">false</span>)
<a href=#559 id=559 data-nosnippet>559</a> .with_time_index(<span class="bool-val">true</span>),
<a href=#560 id=560 data-nosnippet>560</a> ];
<a href=#561 id=561 data-nosnippet>561</a>
<a href=#562 id=562 data-nosnippet>562</a> <span class="macro">assert!</span>(
<a href=#563 id=563 data-nosnippet>563</a> SchemaBuilder::try_from(column_schemas)
<a href=#564 id=564 data-nosnippet>564</a> .unwrap()
<a href=#565 id=565 data-nosnippet>565</a> .build()
<a href=#566 id=566 data-nosnippet>566</a> .is_err()
<a href=#567 id=567 data-nosnippet>567</a> );
<a href=#568 id=568 data-nosnippet>568</a> }
<a href=#569 id=569 data-nosnippet>569</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/schema/constraint.rs`."><title>constraint.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/schema/</div>constraint.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::fmt::{Display, Formatter};
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>common_time::{Timestamp, util};
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>snafu::{ResultExt, ensure};
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::data_type::{ConcreteDataType, DataType};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, <span class="prelude-ty">Result</span>};
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::types::cast;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::vectors::operations::VectorOp;
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{Helper, TimestampMillisecondVector, VectorRef};
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">pub const </span>CURRENT_TIMESTAMP: <span class="kw-2">&amp;</span>str = <span class="string">"current_timestamp"</span>;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">pub const </span>CURRENT_TIMESTAMP_FN: <span class="kw-2">&amp;</span>str = <span class="string">"current_timestamp()"</span>;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">pub const </span>NOW_FN: <span class="kw-2">&amp;</span>str = <span class="string">"now()"</span>;
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="doccomment">/// Column's default constraint.
<a href=#33 id=33 data-nosnippet>33</a></span><span class="attr">#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
<a href=#34 id=34 data-nosnippet>34</a></span><span class="kw">pub enum </span>ColumnDefaultConstraint {
<a href=#35 id=35 data-nosnippet>35</a> <span class="comment">// A function invocation
<a href=#36 id=36 data-nosnippet>36</a> // TODO(dennis): we save the function expression here, maybe use a struct in future.
<a href=#37 id=37 data-nosnippet>37</a> </span>Function(String),
<a href=#38 id=38 data-nosnippet>38</a> <span class="comment">// A value
<a href=#39 id=39 data-nosnippet>39</a> </span>Value(Value),
<a href=#40 id=40 data-nosnippet>40</a>}
<a href=#41 id=41 data-nosnippet>41</a>
<a href=#42 id=42 data-nosnippet>42</a><span class="kw">impl </span>TryFrom&lt;<span class="kw-2">&amp;</span>[u8]&gt; <span class="kw">for </span>ColumnDefaultConstraint {
<a href=#43 id=43 data-nosnippet>43</a> <span class="kw">type </span>Error = error::Error;
<a href=#44 id=44 data-nosnippet>44</a>
<a href=#45 id=45 data-nosnippet>45</a> <span class="kw">fn </span>try_from(bytes: <span class="kw-2">&amp;</span>[u8]) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#46 id=46 data-nosnippet>46</a> <span class="kw">let </span>json = String::from_utf8_lossy(bytes);
<a href=#47 id=47 data-nosnippet>47</a> serde_json::from_str(<span class="kw-2">&amp;</span>json).context(error::DeserializeSnafu { json })
<a href=#48 id=48 data-nosnippet>48</a> }
<a href=#49 id=49 data-nosnippet>49</a>}
<a href=#50 id=50 data-nosnippet>50</a>
<a href=#51 id=51 data-nosnippet>51</a><span class="kw">impl </span>TryFrom&lt;ColumnDefaultConstraint&gt; <span class="kw">for </span>Vec&lt;u8&gt; {
<a href=#52 id=52 data-nosnippet>52</a> <span class="kw">type </span>Error = error::Error;
<a href=#53 id=53 data-nosnippet>53</a>
<a href=#54 id=54 data-nosnippet>54</a> <span class="kw">fn </span>try_from(value: ColumnDefaultConstraint) -&gt; std::result::Result&lt;<span class="self">Self</span>, <span class="self">Self</span>::Error&gt; {
<a href=#55 id=55 data-nosnippet>55</a> <span class="kw">let </span>s = serde_json::to_string(<span class="kw-2">&amp;</span>value).context(error::SerializeSnafu)<span class="question-mark">?</span>;
<a href=#56 id=56 data-nosnippet>56</a> <span class="prelude-val">Ok</span>(s.into_bytes())
<a href=#57 id=57 data-nosnippet>57</a> }
<a href=#58 id=58 data-nosnippet>58</a>}
<a href=#59 id=59 data-nosnippet>59</a>
<a href=#60 id=60 data-nosnippet>60</a><span class="kw">impl </span>TryFrom&lt;<span class="kw-2">&amp;</span>ColumnDefaultConstraint&gt; <span class="kw">for </span>Vec&lt;u8&gt; {
<a href=#61 id=61 data-nosnippet>61</a> <span class="kw">type </span>Error = error::Error;
<a href=#62 id=62 data-nosnippet>62</a>
<a href=#63 id=63 data-nosnippet>63</a> <span class="kw">fn </span>try_from(value: <span class="kw-2">&amp;</span>ColumnDefaultConstraint) -&gt; std::result::Result&lt;<span class="self">Self</span>, <span class="self">Self</span>::Error&gt; {
<a href=#64 id=64 data-nosnippet>64</a> <span class="kw">let </span>s = serde_json::to_string(value).context(error::SerializeSnafu)<span class="question-mark">?</span>;
<a href=#65 id=65 data-nosnippet>65</a> <span class="prelude-val">Ok</span>(s.into_bytes())
<a href=#66 id=66 data-nosnippet>66</a> }
<a href=#67 id=67 data-nosnippet>67</a>}
<a href=#68 id=68 data-nosnippet>68</a>
<a href=#69 id=69 data-nosnippet>69</a><span class="kw">impl </span>Display <span class="kw">for </span>ColumnDefaultConstraint {
<a href=#70 id=70 data-nosnippet>70</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; std::fmt::Result {
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#72 id=72 data-nosnippet>72</a> ColumnDefaultConstraint::Function(expr) =&gt; <span class="macro">write!</span>(f, <span class="string">"{expr}"</span>),
<a href=#73 id=73 data-nosnippet>73</a> ColumnDefaultConstraint::Value(v) =&gt; <span class="macro">write!</span>(f, <span class="string">"{v}"</span>),
<a href=#74 id=74 data-nosnippet>74</a> }
<a href=#75 id=75 data-nosnippet>75</a> }
<a href=#76 id=76 data-nosnippet>76</a>}
<a href=#77 id=77 data-nosnippet>77</a>
<a href=#78 id=78 data-nosnippet>78</a><span class="kw">impl </span>ColumnDefaultConstraint {
<a href=#79 id=79 data-nosnippet>79</a> <span class="doccomment">/// Returns a default null constraint.
<a href=#80 id=80 data-nosnippet>80</a> </span><span class="kw">pub fn </span>null_value() -&gt; ColumnDefaultConstraint {
<a href=#81 id=81 data-nosnippet>81</a> ColumnDefaultConstraint::Value(Value::Null)
<a href=#82 id=82 data-nosnippet>82</a> }
<a href=#83 id=83 data-nosnippet>83</a>
<a href=#84 id=84 data-nosnippet>84</a> <span class="doccomment">/// Check whether the constraint is valid for columns with given `data_type`
<a href=#85 id=85 data-nosnippet>85</a> /// and `is_nullable` attributes.
<a href=#86 id=86 data-nosnippet>86</a> </span><span class="kw">pub fn </span>validate(<span class="kw-2">&amp;</span><span class="self">self</span>, data_type: <span class="kw-2">&amp;</span>ConcreteDataType, is_nullable: bool) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#87 id=87 data-nosnippet>87</a> <span class="macro">ensure!</span>(is_nullable || !<span class="self">self</span>.maybe_null(), error::NullDefaultSnafu);
<a href=#88 id=88 data-nosnippet>88</a>
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#90 id=90 data-nosnippet>90</a> ColumnDefaultConstraint::Function(expr) =&gt; {
<a href=#91 id=91 data-nosnippet>91</a> <span class="macro">ensure!</span>(
<a href=#92 id=92 data-nosnippet>92</a> expr == CURRENT_TIMESTAMP || expr == CURRENT_TIMESTAMP_FN || expr == NOW_FN,
<a href=#93 id=93 data-nosnippet>93</a> error::UnsupportedDefaultExprSnafu { expr }
<a href=#94 id=94 data-nosnippet>94</a> );
<a href=#95 id=95 data-nosnippet>95</a> <span class="macro">ensure!</span>(
<a href=#96 id=96 data-nosnippet>96</a> data_type.is_timestamp(),
<a href=#97 id=97 data-nosnippet>97</a> error::DefaultValueTypeSnafu {
<a href=#98 id=98 data-nosnippet>98</a> reason: <span class="string">"return value of the function must has timestamp type"</span>,
<a href=#99 id=99 data-nosnippet>99</a> }
<a href=#100 id=100 data-nosnippet>100</a> );
<a href=#101 id=101 data-nosnippet>101</a> }
<a href=#102 id=102 data-nosnippet>102</a> ColumnDefaultConstraint::Value(v) =&gt; {
<a href=#103 id=103 data-nosnippet>103</a> <span class="kw">if </span>!v.is_null() {
<a href=#104 id=104 data-nosnippet>104</a> <span class="comment">// Whether the value could be nullable has been checked before, only need
<a href=#105 id=105 data-nosnippet>105</a> // to check the type compatibility here.
<a href=#106 id=106 data-nosnippet>106</a> </span><span class="macro">ensure!</span>(
<a href=#107 id=107 data-nosnippet>107</a> value_type_match(data_type, v.data_type()),
<a href=#108 id=108 data-nosnippet>108</a> error::DefaultValueTypeSnafu {
<a href=#109 id=109 data-nosnippet>109</a> reason: <span class="macro">format!</span>(
<a href=#110 id=110 data-nosnippet>110</a> <span class="string">"column has type {:?} but default value has type {:?}"</span>,
<a href=#111 id=111 data-nosnippet>111</a> data_type.logical_type_id(),
<a href=#112 id=112 data-nosnippet>112</a> v.logical_type_id()
<a href=#113 id=113 data-nosnippet>113</a> ),
<a href=#114 id=114 data-nosnippet>114</a> }
<a href=#115 id=115 data-nosnippet>115</a> );
<a href=#116 id=116 data-nosnippet>116</a> }
<a href=#117 id=117 data-nosnippet>117</a> }
<a href=#118 id=118 data-nosnippet>118</a> }
<a href=#119 id=119 data-nosnippet>119</a>
<a href=#120 id=120 data-nosnippet>120</a> <span class="prelude-val">Ok</span>(())
<a href=#121 id=121 data-nosnippet>121</a> }
<a href=#122 id=122 data-nosnippet>122</a>
<a href=#123 id=123 data-nosnippet>123</a> <span class="doccomment">/// Create a vector that contains `num_rows` default values for given `data_type`.
<a href=#124 id=124 data-nosnippet>124</a> ///
<a href=#125 id=125 data-nosnippet>125</a> /// If `is_nullable` is `true`, then this method would returns error if the created
<a href=#126 id=126 data-nosnippet>126</a> /// default value is null.
<a href=#127 id=127 data-nosnippet>127</a> ///
<a href=#128 id=128 data-nosnippet>128</a> /// # Panics
<a href=#129 id=129 data-nosnippet>129</a> /// Panics if `num_rows == 0`.
<a href=#130 id=130 data-nosnippet>130</a> </span><span class="kw">pub fn </span>create_default_vector(
<a href=#131 id=131 data-nosnippet>131</a> <span class="kw-2">&amp;</span><span class="self">self</span>,
<a href=#132 id=132 data-nosnippet>132</a> data_type: <span class="kw-2">&amp;</span>ConcreteDataType,
<a href=#133 id=133 data-nosnippet>133</a> is_nullable: bool,
<a href=#134 id=134 data-nosnippet>134</a> num_rows: usize,
<a href=#135 id=135 data-nosnippet>135</a> ) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#136 id=136 data-nosnippet>136</a> <span class="macro">assert!</span>(num_rows &gt; <span class="number">0</span>);
<a href=#137 id=137 data-nosnippet>137</a>
<a href=#138 id=138 data-nosnippet>138</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#139 id=139 data-nosnippet>139</a> ColumnDefaultConstraint::Function(expr) =&gt; {
<a href=#140 id=140 data-nosnippet>140</a> <span class="comment">// Functions should also ensure its return value is not null when
<a href=#141 id=141 data-nosnippet>141</a> // is_nullable is true.
<a href=#142 id=142 data-nosnippet>142</a> </span><span class="kw">match </span><span class="kw-2">&amp;</span>expr[..] {
<a href=#143 id=143 data-nosnippet>143</a> <span class="comment">// TODO(dennis): we only supports current_timestamp right now,
<a href=#144 id=144 data-nosnippet>144</a> // it's better to use a expression framework in future.
<a href=#145 id=145 data-nosnippet>145</a> </span>CURRENT_TIMESTAMP | CURRENT_TIMESTAMP_FN | NOW_FN =&gt; {
<a href=#146 id=146 data-nosnippet>146</a> create_current_timestamp_vector(data_type, num_rows)
<a href=#147 id=147 data-nosnippet>147</a> }
<a href=#148 id=148 data-nosnippet>148</a> <span class="kw">_ </span>=&gt; error::UnsupportedDefaultExprSnafu { expr }.fail(),
<a href=#149 id=149 data-nosnippet>149</a> }
<a href=#150 id=150 data-nosnippet>150</a> }
<a href=#151 id=151 data-nosnippet>151</a> ColumnDefaultConstraint::Value(v) =&gt; {
<a href=#152 id=152 data-nosnippet>152</a> <span class="macro">ensure!</span>(is_nullable || !v.is_null(), error::NullDefaultSnafu);
<a href=#153 id=153 data-nosnippet>153</a>
<a href=#154 id=154 data-nosnippet>154</a> <span class="kw">if let </span><span class="prelude-val">Ok</span>(vector) = v.try_to_scalar_value(data_type).and_then(|scalar| {
<a href=#155 id=155 data-nosnippet>155</a> Helper::try_from_scalar_value(scalar, num_rows, <span class="prelude-val">Some</span>(data_type))
<a href=#156 id=156 data-nosnippet>156</a> }) {
<a href=#157 id=157 data-nosnippet>157</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(vector);
<a href=#158 id=158 data-nosnippet>158</a> }
<a href=#159 id=159 data-nosnippet>159</a>
<a href=#160 id=160 data-nosnippet>160</a> <span class="comment">// Some extension values, such as JSON nested in a struct, cannot safely
<a href=#161 id=161 data-nosnippet>161</a> // round-trip through ScalarValue. Preserve their logical type with the
<a href=#162 id=162 data-nosnippet>162</a> // type-specific vector builder instead.
<a href=#163 id=163 data-nosnippet>163</a> </span><span class="kw">let </span><span class="kw-2">mut </span>mutable_vector = data_type.create_mutable_vector(num_rows);
<a href=#164 id=164 data-nosnippet>164</a> <span class="kw">for _ in </span><span class="number">0</span>..num_rows {
<a href=#165 id=165 data-nosnippet>165</a> mutable_vector.try_push_value_ref(<span class="kw-2">&amp;</span>v.as_value_ref())<span class="question-mark">?</span>;
<a href=#166 id=166 data-nosnippet>166</a> }
<a href=#167 id=167 data-nosnippet>167</a> <span class="prelude-val">Ok</span>(mutable_vector.to_vector())
<a href=#168 id=168 data-nosnippet>168</a> }
<a href=#169 id=169 data-nosnippet>169</a> }
<a href=#170 id=170 data-nosnippet>170</a> }
<a href=#171 id=171 data-nosnippet>171</a>
<a href=#172 id=172 data-nosnippet>172</a> <span class="doccomment">/// Create a default value for given `data_type`.
<a href=#173 id=173 data-nosnippet>173</a> ///
<a href=#174 id=174 data-nosnippet>174</a> /// If `is_nullable` is `true`, then this method would returns error if the created
<a href=#175 id=175 data-nosnippet>175</a> /// default value is null.
<a href=#176 id=176 data-nosnippet>176</a> </span><span class="kw">pub fn </span>create_default(<span class="kw-2">&amp;</span><span class="self">self</span>, data_type: <span class="kw-2">&amp;</span>ConcreteDataType, is_nullable: bool) -&gt; <span class="prelude-ty">Result</span>&lt;Value&gt; {
<a href=#177 id=177 data-nosnippet>177</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#178 id=178 data-nosnippet>178</a> ColumnDefaultConstraint::Function(expr) =&gt; {
<a href=#179 id=179 data-nosnippet>179</a> <span class="comment">// Functions should also ensure its return value is not null when
<a href=#180 id=180 data-nosnippet>180</a> // is_nullable is true.
<a href=#181 id=181 data-nosnippet>181</a> </span><span class="kw">match </span><span class="kw-2">&amp;</span>expr[..] {
<a href=#182 id=182 data-nosnippet>182</a> CURRENT_TIMESTAMP | CURRENT_TIMESTAMP_FN | NOW_FN =&gt; {
<a href=#183 id=183 data-nosnippet>183</a> create_current_timestamp(data_type)
<a href=#184 id=184 data-nosnippet>184</a> }
<a href=#185 id=185 data-nosnippet>185</a> <span class="kw">_ </span>=&gt; error::UnsupportedDefaultExprSnafu { expr }.fail(),
<a href=#186 id=186 data-nosnippet>186</a> }
<a href=#187 id=187 data-nosnippet>187</a> }
<a href=#188 id=188 data-nosnippet>188</a> ColumnDefaultConstraint::Value(v) =&gt; {
<a href=#189 id=189 data-nosnippet>189</a> <span class="macro">ensure!</span>(is_nullable || !v.is_null(), error::NullDefaultSnafu);
<a href=#190 id=190 data-nosnippet>190</a>
<a href=#191 id=191 data-nosnippet>191</a> <span class="prelude-val">Ok</span>(v.clone())
<a href=#192 id=192 data-nosnippet>192</a> }
<a href=#193 id=193 data-nosnippet>193</a> }
<a href=#194 id=194 data-nosnippet>194</a> }
<a href=#195 id=195 data-nosnippet>195</a>
<a href=#196 id=196 data-nosnippet>196</a> <span class="doccomment">/// Cast default value to given type
<a href=#197 id=197 data-nosnippet>197</a> </span><span class="kw">pub fn </span>cast_to_datatype(<span class="kw-2">&amp;</span><span class="self">self</span>, data_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#198 id=198 data-nosnippet>198</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#199 id=199 data-nosnippet>199</a> ColumnDefaultConstraint::Value(v) =&gt; <span class="prelude-val">Ok</span>(<span class="self">Self</span>::Value(cast(v.clone(), data_type)<span class="question-mark">?</span>)),
<a href=#200 id=200 data-nosnippet>200</a> ColumnDefaultConstraint::Function(expr) =&gt; <span class="kw">match </span><span class="kw-2">&amp;</span>expr[..] {
<a href=#201 id=201 data-nosnippet>201</a> <span class="comment">// no need to cast, since function always require a data_type when need to create default value
<a href=#202 id=202 data-nosnippet>202</a> </span>CURRENT_TIMESTAMP | CURRENT_TIMESTAMP_FN | NOW_FN =&gt; <span class="prelude-val">Ok</span>(<span class="self">self</span>.clone()),
<a href=#203 id=203 data-nosnippet>203</a> <span class="kw">_ </span>=&gt; error::UnsupportedDefaultExprSnafu { expr }.fail(),
<a href=#204 id=204 data-nosnippet>204</a> },
<a href=#205 id=205 data-nosnippet>205</a> }
<a href=#206 id=206 data-nosnippet>206</a> }
<a href=#207 id=207 data-nosnippet>207</a>
<a href=#208 id=208 data-nosnippet>208</a> <span class="doccomment">/// Only create default vector if it's impure, i.e., it's a function.
<a href=#209 id=209 data-nosnippet>209</a> ///
<a href=#210 id=210 data-nosnippet>210</a> /// This helps to delay creating constant default values to mito engine while also keeps impure default have consistent values
<a href=#211 id=211 data-nosnippet>211</a> </span><span class="kw">pub fn </span>create_impure_default_vector(
<a href=#212 id=212 data-nosnippet>212</a> <span class="kw-2">&amp;</span><span class="self">self</span>,
<a href=#213 id=213 data-nosnippet>213</a> data_type: <span class="kw-2">&amp;</span>ConcreteDataType,
<a href=#214 id=214 data-nosnippet>214</a> num_rows: usize,
<a href=#215 id=215 data-nosnippet>215</a> ) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="prelude-ty">Option</span>&lt;VectorRef&gt;&gt; {
<a href=#216 id=216 data-nosnippet>216</a> <span class="macro">assert!</span>(num_rows &gt; <span class="number">0</span>);
<a href=#217 id=217 data-nosnippet>217</a>
<a href=#218 id=218 data-nosnippet>218</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#219 id=219 data-nosnippet>219</a> ColumnDefaultConstraint::Function(expr) =&gt; {
<a href=#220 id=220 data-nosnippet>220</a> <span class="comment">// Functions should also ensure its return value is not null when
<a href=#221 id=221 data-nosnippet>221</a> // is_nullable is true.
<a href=#222 id=222 data-nosnippet>222</a> </span><span class="kw">match </span><span class="kw-2">&amp;</span>expr[..] {
<a href=#223 id=223 data-nosnippet>223</a> <span class="comment">// TODO(dennis): we only supports current_timestamp right now,
<a href=#224 id=224 data-nosnippet>224</a> // it's better to use a expression framework in future.
<a href=#225 id=225 data-nosnippet>225</a> </span>CURRENT_TIMESTAMP | CURRENT_TIMESTAMP_FN | NOW_FN =&gt; {
<a href=#226 id=226 data-nosnippet>226</a> create_current_timestamp_vector(data_type, num_rows).map(<span class="prelude-val">Some</span>)
<a href=#227 id=227 data-nosnippet>227</a> }
<a href=#228 id=228 data-nosnippet>228</a> <span class="kw">_ </span>=&gt; error::UnsupportedDefaultExprSnafu { expr }.fail(),
<a href=#229 id=229 data-nosnippet>229</a> }
<a href=#230 id=230 data-nosnippet>230</a> }
<a href=#231 id=231 data-nosnippet>231</a> ColumnDefaultConstraint::Value(<span class="kw">_</span>) =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
<a href=#232 id=232 data-nosnippet>232</a> }
<a href=#233 id=233 data-nosnippet>233</a> }
<a href=#234 id=234 data-nosnippet>234</a>
<a href=#235 id=235 data-nosnippet>235</a> <span class="doccomment">/// Only create default value if it's impure, i.e., it's a function.
<a href=#236 id=236 data-nosnippet>236</a> ///
<a href=#237 id=237 data-nosnippet>237</a> /// This helps to delay creating constant default values to mito engine while also keeps impure default have consistent values
<a href=#238 id=238 data-nosnippet>238</a> </span><span class="kw">pub fn </span>create_impure_default(<span class="kw-2">&amp;</span><span class="self">self</span>, data_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="prelude-ty">Option</span>&lt;Value&gt;&gt; {
<a href=#239 id=239 data-nosnippet>239</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#240 id=240 data-nosnippet>240</a> ColumnDefaultConstraint::Function(expr) =&gt; {
<a href=#241 id=241 data-nosnippet>241</a> <span class="comment">// Functions should also ensure its return value is not null when
<a href=#242 id=242 data-nosnippet>242</a> // is_nullable is true.
<a href=#243 id=243 data-nosnippet>243</a> </span><span class="kw">match </span><span class="kw-2">&amp;</span>expr[..] {
<a href=#244 id=244 data-nosnippet>244</a> CURRENT_TIMESTAMP | CURRENT_TIMESTAMP_FN | NOW_FN =&gt; {
<a href=#245 id=245 data-nosnippet>245</a> create_current_timestamp(data_type).map(<span class="prelude-val">Some</span>)
<a href=#246 id=246 data-nosnippet>246</a> }
<a href=#247 id=247 data-nosnippet>247</a> <span class="kw">_ </span>=&gt; error::UnsupportedDefaultExprSnafu { expr }.fail(),
<a href=#248 id=248 data-nosnippet>248</a> }
<a href=#249 id=249 data-nosnippet>249</a> }
<a href=#250 id=250 data-nosnippet>250</a> ColumnDefaultConstraint::Value(<span class="kw">_</span>) =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
<a href=#251 id=251 data-nosnippet>251</a> }
<a href=#252 id=252 data-nosnippet>252</a> }
<a href=#253 id=253 data-nosnippet>253</a>
<a href=#254 id=254 data-nosnippet>254</a> <span class="doccomment">/// Returns true if this constraint might creates NULL.
<a href=#255 id=255 data-nosnippet>255</a> </span><span class="kw">fn </span>maybe_null(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#256 id=256 data-nosnippet>256</a> <span class="comment">// Once we support more functions, we may return true if given function
<a href=#257 id=257 data-nosnippet>257</a> // could return null.
<a href=#258 id=258 data-nosnippet>258</a> </span><span class="macro">matches!</span>(<span class="self">self</span>, ColumnDefaultConstraint::Value(Value::Null))
<a href=#259 id=259 data-nosnippet>259</a> }
<a href=#260 id=260 data-nosnippet>260</a>
<a href=#261 id=261 data-nosnippet>261</a> <span class="doccomment">/// Returns true if this constraint is a function.
<a href=#262 id=262 data-nosnippet>262</a> </span><span class="kw">pub fn </span>is_function(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#263 id=263 data-nosnippet>263</a> <span class="macro">matches!</span>(<span class="self">self</span>, ColumnDefaultConstraint::Function(<span class="kw">_</span>))
<a href=#264 id=264 data-nosnippet>264</a> }
<a href=#265 id=265 data-nosnippet>265</a>}
<a href=#266 id=266 data-nosnippet>266</a>
<a href=#267 id=267 data-nosnippet>267</a><span class="kw">fn </span>create_current_timestamp(data_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;Value&gt; {
<a href=#268 id=268 data-nosnippet>268</a> <span class="kw">let </span><span class="prelude-val">Some</span>(timestamp_type) = data_type.as_timestamp() <span class="kw">else </span>{
<a href=#269 id=269 data-nosnippet>269</a> <span class="kw">return </span>error::DefaultValueTypeSnafu {
<a href=#270 id=270 data-nosnippet>270</a> reason: <span class="macro">format!</span>(<span class="string">"Not support to assign current timestamp to {data_type:?} type"</span>),
<a href=#271 id=271 data-nosnippet>271</a> }
<a href=#272 id=272 data-nosnippet>272</a> .fail();
<a href=#273 id=273 data-nosnippet>273</a> };
<a href=#274 id=274 data-nosnippet>274</a>
<a href=#275 id=275 data-nosnippet>275</a> <span class="kw">let </span>unit = timestamp_type.unit();
<a href=#276 id=276 data-nosnippet>276</a> <span class="prelude-val">Ok</span>(Value::Timestamp(Timestamp::current_time(unit)))
<a href=#277 id=277 data-nosnippet>277</a>}
<a href=#278 id=278 data-nosnippet>278</a>
<a href=#279 id=279 data-nosnippet>279</a><span class="kw">fn </span>create_current_timestamp_vector(
<a href=#280 id=280 data-nosnippet>280</a> data_type: <span class="kw-2">&amp;</span>ConcreteDataType,
<a href=#281 id=281 data-nosnippet>281</a> num_rows: usize,
<a href=#282 id=282 data-nosnippet>282</a>) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#283 id=283 data-nosnippet>283</a> <span class="kw">let </span>current_timestamp_vector = TimestampMillisecondVector::from_values(std::iter::repeat_n(
<a href=#284 id=284 data-nosnippet>284</a> util::current_time_millis(),
<a href=#285 id=285 data-nosnippet>285</a> num_rows,
<a href=#286 id=286 data-nosnippet>286</a> ));
<a href=#287 id=287 data-nosnippet>287</a> <span class="kw">if </span>data_type.is_timestamp() {
<a href=#288 id=288 data-nosnippet>288</a> current_timestamp_vector.cast(data_type)
<a href=#289 id=289 data-nosnippet>289</a> } <span class="kw">else </span>{
<a href=#290 id=290 data-nosnippet>290</a> error::DefaultValueTypeSnafu {
<a href=#291 id=291 data-nosnippet>291</a> reason: <span class="macro">format!</span>(<span class="string">"Not support to assign current timestamp to {data_type:?} type"</span>,),
<a href=#292 id=292 data-nosnippet>292</a> }
<a href=#293 id=293 data-nosnippet>293</a> .fail()
<a href=#294 id=294 data-nosnippet>294</a> }
<a href=#295 id=295 data-nosnippet>295</a>}
<a href=#296 id=296 data-nosnippet>296</a>
<a href=#297 id=297 data-nosnippet>297</a><span class="kw">fn </span>value_type_match(column_type: <span class="kw-2">&amp;</span>ConcreteDataType, value_type: ConcreteDataType) -&gt; bool {
<a href=#298 id=298 data-nosnippet>298</a> <span class="kw">match </span>(column_type, value_type) {
<a href=#299 id=299 data-nosnippet>299</a> (ct, vt) <span class="kw">if </span>ct.logical_type_id() == vt.logical_type_id() =&gt; <span class="bool-val">true</span>,
<a href=#300 id=300 data-nosnippet>300</a> <span class="comment">// Vector and Json type is encoded as binary
<a href=#301 id=301 data-nosnippet>301</a> </span>(ConcreteDataType::Vector(<span class="kw">_</span>) | ConcreteDataType::Json(<span class="kw">_</span>), ConcreteDataType::Binary(<span class="kw">_</span>)) =&gt; {
<a href=#302 id=302 data-nosnippet>302</a> <span class="bool-val">true
<a href=#303 id=303 data-nosnippet>303</a> </span>}
<a href=#304 id=304 data-nosnippet>304</a> <span class="kw">_ </span>=&gt; <span class="bool-val">false</span>,
<a href=#305 id=305 data-nosnippet>305</a> }
<a href=#306 id=306 data-nosnippet>306</a>}
<a href=#307 id=307 data-nosnippet>307</a>
<a href=#308 id=308 data-nosnippet>308</a><span class="attr">#[cfg(test)]
<a href=#309 id=309 data-nosnippet>309</a></span><span class="kw">mod </span>tests {
<a href=#310 id=310 data-nosnippet>310</a> <span class="kw">use </span>std::sync::Arc;
<a href=#311 id=311 data-nosnippet>311</a>
<a href=#312 id=312 data-nosnippet>312</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#313 id=313 data-nosnippet>313</a> <span class="kw">use </span><span class="kw">crate</span>::error::Error;
<a href=#314 id=314 data-nosnippet>314</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::Int32Vector;
<a href=#315 id=315 data-nosnippet>315</a>
<a href=#316 id=316 data-nosnippet>316</a> <span class="attr">#[test]
<a href=#317 id=317 data-nosnippet>317</a> </span><span class="kw">fn </span>test_null_default_constraint() {
<a href=#318 id=318 data-nosnippet>318</a> <span class="kw">let </span>constraint = ColumnDefaultConstraint::null_value();
<a href=#319 id=319 data-nosnippet>319</a> <span class="macro">assert!</span>(constraint.maybe_null());
<a href=#320 id=320 data-nosnippet>320</a> <span class="kw">let </span>constraint = ColumnDefaultConstraint::Value(Value::Int32(<span class="number">10</span>));
<a href=#321 id=321 data-nosnippet>321</a> <span class="macro">assert!</span>(!constraint.maybe_null());
<a href=#322 id=322 data-nosnippet>322</a> }
<a href=#323 id=323 data-nosnippet>323</a>
<a href=#324 id=324 data-nosnippet>324</a> <span class="attr">#[test]
<a href=#325 id=325 data-nosnippet>325</a> </span><span class="kw">fn </span>test_validate_null_constraint() {
<a href=#326 id=326 data-nosnippet>326</a> <span class="kw">let </span>constraint = ColumnDefaultConstraint::null_value();
<a href=#327 id=327 data-nosnippet>327</a> <span class="kw">let </span>data_type = ConcreteDataType::int32_datatype();
<a href=#328 id=328 data-nosnippet>328</a> <span class="macro">assert!</span>(constraint.validate(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>).is_err());
<a href=#329 id=329 data-nosnippet>329</a> constraint.validate(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">true</span>).unwrap();
<a href=#330 id=330 data-nosnippet>330</a> }
<a href=#331 id=331 data-nosnippet>331</a>
<a href=#332 id=332 data-nosnippet>332</a> <span class="attr">#[test]
<a href=#333 id=333 data-nosnippet>333</a> </span><span class="kw">fn </span>test_validate_value_constraint() {
<a href=#334 id=334 data-nosnippet>334</a> <span class="kw">let </span>constraint = ColumnDefaultConstraint::Value(Value::Int32(<span class="number">10</span>));
<a href=#335 id=335 data-nosnippet>335</a> <span class="kw">let </span>data_type = ConcreteDataType::int32_datatype();
<a href=#336 id=336 data-nosnippet>336</a> constraint.validate(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>).unwrap();
<a href=#337 id=337 data-nosnippet>337</a> constraint.validate(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">true</span>).unwrap();
<a href=#338 id=338 data-nosnippet>338</a>
<a href=#339 id=339 data-nosnippet>339</a> <span class="macro">assert!</span>(
<a href=#340 id=340 data-nosnippet>340</a> constraint
<a href=#341 id=341 data-nosnippet>341</a> .validate(<span class="kw-2">&amp;</span>ConcreteDataType::uint32_datatype(), <span class="bool-val">true</span>)
<a href=#342 id=342 data-nosnippet>342</a> .is_err()
<a href=#343 id=343 data-nosnippet>343</a> );
<a href=#344 id=344 data-nosnippet>344</a> }
<a href=#345 id=345 data-nosnippet>345</a>
<a href=#346 id=346 data-nosnippet>346</a> <span class="attr">#[test]
<a href=#347 id=347 data-nosnippet>347</a> </span><span class="kw">fn </span>test_validate_function_constraint() {
<a href=#348 id=348 data-nosnippet>348</a> <span class="kw">let </span>constraint = ColumnDefaultConstraint::Function(CURRENT_TIMESTAMP.to_string());
<a href=#349 id=349 data-nosnippet>349</a> constraint
<a href=#350 id=350 data-nosnippet>350</a> .validate(<span class="kw-2">&amp;</span>ConcreteDataType::timestamp_millisecond_datatype(), <span class="bool-val">false</span>)
<a href=#351 id=351 data-nosnippet>351</a> .unwrap();
<a href=#352 id=352 data-nosnippet>352</a> <span class="macro">assert!</span>(
<a href=#353 id=353 data-nosnippet>353</a> constraint
<a href=#354 id=354 data-nosnippet>354</a> .validate(<span class="kw-2">&amp;</span>ConcreteDataType::boolean_datatype(), <span class="bool-val">false</span>)
<a href=#355 id=355 data-nosnippet>355</a> .is_err()
<a href=#356 id=356 data-nosnippet>356</a> );
<a href=#357 id=357 data-nosnippet>357</a>
<a href=#358 id=358 data-nosnippet>358</a> <span class="kw">let </span>constraint = ColumnDefaultConstraint::Function(<span class="string">"hello()"</span>.to_string());
<a href=#359 id=359 data-nosnippet>359</a> <span class="macro">assert!</span>(
<a href=#360 id=360 data-nosnippet>360</a> constraint
<a href=#361 id=361 data-nosnippet>361</a> .validate(<span class="kw-2">&amp;</span>ConcreteDataType::timestamp_millisecond_datatype(), <span class="bool-val">false</span>)
<a href=#362 id=362 data-nosnippet>362</a> .is_err()
<a href=#363 id=363 data-nosnippet>363</a> );
<a href=#364 id=364 data-nosnippet>364</a> }
<a href=#365 id=365 data-nosnippet>365</a>
<a href=#366 id=366 data-nosnippet>366</a> <span class="attr">#[test]
<a href=#367 id=367 data-nosnippet>367</a> </span><span class="kw">fn </span>test_create_default_vector_by_null() {
<a href=#368 id=368 data-nosnippet>368</a> <span class="kw">let </span>constraint = ColumnDefaultConstraint::null_value();
<a href=#369 id=369 data-nosnippet>369</a> <span class="kw">let </span>data_type = ConcreteDataType::int32_datatype();
<a href=#370 id=370 data-nosnippet>370</a> <span class="macro">assert!</span>(
<a href=#371 id=371 data-nosnippet>371</a> constraint
<a href=#372 id=372 data-nosnippet>372</a> .create_default_vector(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>, <span class="number">10</span>)
<a href=#373 id=373 data-nosnippet>373</a> .is_err()
<a href=#374 id=374 data-nosnippet>374</a> );
<a href=#375 id=375 data-nosnippet>375</a>
<a href=#376 id=376 data-nosnippet>376</a> <span class="kw">let </span>constraint = ColumnDefaultConstraint::null_value();
<a href=#377 id=377 data-nosnippet>377</a> <span class="kw">let </span>v = constraint
<a href=#378 id=378 data-nosnippet>378</a> .create_default_vector(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">true</span>, <span class="number">3</span>)
<a href=#379 id=379 data-nosnippet>379</a> .unwrap();
<a href=#380 id=380 data-nosnippet>380</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, v.len());
<a href=#381 id=381 data-nosnippet>381</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..v.len() {
<a href=#382 id=382 data-nosnippet>382</a> <span class="macro">assert_eq!</span>(Value::Null, v.get(i));
<a href=#383 id=383 data-nosnippet>383</a> }
<a href=#384 id=384 data-nosnippet>384</a> }
<a href=#385 id=385 data-nosnippet>385</a>
<a href=#386 id=386 data-nosnippet>386</a> <span class="attr">#[test]
<a href=#387 id=387 data-nosnippet>387</a> </span><span class="kw">fn </span>test_create_default_by_value() {
<a href=#388 id=388 data-nosnippet>388</a> <span class="kw">let </span>constraint = ColumnDefaultConstraint::Value(Value::Int32(<span class="number">10</span>));
<a href=#389 id=389 data-nosnippet>389</a> <span class="kw">let </span>data_type = ConcreteDataType::int32_datatype();
<a href=#390 id=390 data-nosnippet>390</a> <span class="kw">let </span>v = constraint
<a href=#391 id=391 data-nosnippet>391</a> .create_default_vector(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>, <span class="number">4</span>)
<a href=#392 id=392 data-nosnippet>392</a> .unwrap();
<a href=#393 id=393 data-nosnippet>393</a> <span class="kw">let </span>expect: VectorRef = Arc::new(Int32Vector::from_values(<span class="macro">vec!</span>[<span class="number">10</span>; <span class="number">4</span>]));
<a href=#394 id=394 data-nosnippet>394</a> <span class="macro">assert_eq!</span>(expect, v);
<a href=#395 id=395 data-nosnippet>395</a> <span class="kw">let </span>v = constraint.create_default(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>).unwrap();
<a href=#396 id=396 data-nosnippet>396</a> <span class="macro">assert_eq!</span>(Value::Int32(<span class="number">10</span>), v);
<a href=#397 id=397 data-nosnippet>397</a> }
<a href=#398 id=398 data-nosnippet>398</a>
<a href=#399 id=399 data-nosnippet>399</a> <span class="attr">#[test]
<a href=#400 id=400 data-nosnippet>400</a> </span><span class="kw">fn </span>test_struct_default_null_fields_and_json() {
<a href=#401 id=401 data-nosnippet>401</a> <span class="kw">use </span><span class="kw">crate</span>::types::{StructField, StructType};
<a href=#402 id=402 data-nosnippet>402</a> <span class="kw">use </span><span class="kw">crate</span>::value::StructValue;
<a href=#403 id=403 data-nosnippet>403</a>
<a href=#404 id=404 data-nosnippet>404</a> <span class="kw">let </span>inner_type = StructType::from([StructField::new(
<a href=#405 id=405 data-nosnippet>405</a> <span class="string">"x"</span>,
<a href=#406 id=406 data-nosnippet>406</a> ConcreteDataType::int32_datatype(),
<a href=#407 id=407 data-nosnippet>407</a> <span class="bool-val">true</span>,
<a href=#408 id=408 data-nosnippet>408</a> )]);
<a href=#409 id=409 data-nosnippet>409</a> <span class="kw">let </span>inner = Value::Struct(StructValue::new(<span class="macro">vec!</span>[Value::Null], inner_type));
<a href=#410 id=410 data-nosnippet>410</a> <span class="kw">let </span>json = <span class="kw">crate</span>::json::JsonSettings::default()
<a href=#411 id=411 data-nosnippet>411</a> .encode(<span class="macro">serde_json::json!</span>({<span class="string">"answer"</span>: <span class="number">42</span>}))
<a href=#412 id=412 data-nosnippet>412</a> .unwrap();
<a href=#413 id=413 data-nosnippet>413</a> <span class="kw">let </span>nested_type = StructType::from([StructField::new(<span class="string">"nested"</span>, inner.data_type(), <span class="bool-val">true</span>)]);
<a href=#414 id=414 data-nosnippet>414</a> <span class="kw">let </span>json_type = StructType::from([StructField::new(<span class="string">"json"</span>, json.data_type(), <span class="bool-val">true</span>)]);
<a href=#415 id=415 data-nosnippet>415</a> <span class="kw">let </span>values = [
<a href=#416 id=416 data-nosnippet>416</a> inner.clone(),
<a href=#417 id=417 data-nosnippet>417</a> Value::Struct(StructValue::new(<span class="macro">vec!</span>[inner], nested_type)),
<a href=#418 id=418 data-nosnippet>418</a> Value::Struct(StructValue::new(<span class="macro">vec!</span>[], StructType::default())),
<a href=#419 id=419 data-nosnippet>419</a> Value::Struct(StructValue::new(<span class="macro">vec!</span>[json], json_type)),
<a href=#420 id=420 data-nosnippet>420</a> ];
<a href=#421 id=421 data-nosnippet>421</a> <span class="kw">for </span>value <span class="kw">in </span>values {
<a href=#422 id=422 data-nosnippet>422</a> <span class="kw">let </span>data_type = value.data_type();
<a href=#423 id=423 data-nosnippet>423</a> <span class="comment">// JSON children are read back as their underlying struct values.
<a href=#424 id=424 data-nosnippet>424</a> </span><span class="kw">let </span>expected = serde_json::Value::try_from(value.clone()).unwrap();
<a href=#425 id=425 data-nosnippet>425</a> <span class="kw">for </span>num_rows <span class="kw">in </span>[<span class="number">1</span>, <span class="number">3</span>] {
<a href=#426 id=426 data-nosnippet>426</a> <span class="kw">let </span>vector = ColumnDefaultConstraint::Value(value.clone())
<a href=#427 id=427 data-nosnippet>427</a> .create_default_vector(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>, num_rows)
<a href=#428 id=428 data-nosnippet>428</a> .unwrap();
<a href=#429 id=429 data-nosnippet>429</a> <span class="macro">assert_eq!</span>(data_type, vector.data_type());
<a href=#430 id=430 data-nosnippet>430</a> <span class="macro">assert_eq!</span>(
<a href=#431 id=431 data-nosnippet>431</a> data_type.as_arrow_type(),
<a href=#432 id=432 data-nosnippet>432</a> <span class="kw-2">*</span>vector.to_arrow_array().data_type()
<a href=#433 id=433 data-nosnippet>433</a> );
<a href=#434 id=434 data-nosnippet>434</a> <span class="macro">assert_eq!</span>(num_rows, vector.len());
<a href=#435 id=435 data-nosnippet>435</a> <span class="macro">assert_eq!</span>(<span class="number">0</span>, vector.null_count());
<a href=#436 id=436 data-nosnippet>436</a> <span class="kw">for </span>row <span class="kw">in </span><span class="number">0</span>..num_rows {
<a href=#437 id=437 data-nosnippet>437</a> <span class="macro">assert_eq!</span>(
<a href=#438 id=438 data-nosnippet>438</a> expected,
<a href=#439 id=439 data-nosnippet>439</a> serde_json::Value::try_from(vector.get(row)).unwrap()
<a href=#440 id=440 data-nosnippet>440</a> );
<a href=#441 id=441 data-nosnippet>441</a> }
<a href=#442 id=442 data-nosnippet>442</a> }
<a href=#443 id=443 data-nosnippet>443</a> }
<a href=#444 id=444 data-nosnippet>444</a> }
<a href=#445 id=445 data-nosnippet>445</a>
<a href=#446 id=446 data-nosnippet>446</a> <span class="attr">#[test]
<a href=#447 id=447 data-nosnippet>447</a> </span><span class="kw">fn </span>test_string_default_preserves_batch_schema() {
<a href=#448 id=448 data-nosnippet>448</a> <span class="kw">use </span>arrow::datatypes::{Field, Schema};
<a href=#449 id=449 data-nosnippet>449</a> <span class="kw">use </span>arrow::record_batch::RecordBatch;
<a href=#450 id=450 data-nosnippet>450</a>
<a href=#451 id=451 data-nosnippet>451</a> <span class="kw">for </span>data_type <span class="kw">in </span>[
<a href=#452 id=452 data-nosnippet>452</a> ConcreteDataType::large_string_datatype(),
<a href=#453 id=453 data-nosnippet>453</a> ConcreteDataType::utf8_view_datatype(),
<a href=#454 id=454 data-nosnippet>454</a> ] {
<a href=#455 id=455 data-nosnippet>455</a> <span class="kw">let </span>schema = Arc::new(Schema::new(<span class="macro">vec!</span>[Field::new(
<a href=#456 id=456 data-nosnippet>456</a> <span class="string">"tag"</span>,
<a href=#457 id=457 data-nosnippet>457</a> data_type.as_arrow_type(),
<a href=#458 id=458 data-nosnippet>458</a> <span class="bool-val">true</span>,
<a href=#459 id=459 data-nosnippet>459</a> )]));
<a href=#460 id=460 data-nosnippet>460</a> <span class="kw">for </span>value <span class="kw">in </span>[Value::from(<span class="string">"greptime"</span>), Value::Null] {
<a href=#461 id=461 data-nosnippet>461</a> <span class="kw">let </span>vector = ColumnDefaultConstraint::Value(value.clone())
<a href=#462 id=462 data-nosnippet>462</a> .create_default_vector(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">true</span>, <span class="number">3</span>)
<a href=#463 id=463 data-nosnippet>463</a> .unwrap();
<a href=#464 id=464 data-nosnippet>464</a> <span class="kw">let </span>batch =
<a href=#465 id=465 data-nosnippet>465</a> RecordBatch::try_new(schema.clone(), <span class="macro">vec!</span>[vector.to_arrow_array()]).unwrap();
<a href=#466 id=466 data-nosnippet>466</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, batch.num_rows());
<a href=#467 id=467 data-nosnippet>467</a> <span class="macro">assert_eq!</span>(data_type, vector.data_type());
<a href=#468 id=468 data-nosnippet>468</a> <span class="kw">for </span>row <span class="kw">in </span><span class="number">0</span>..batch.num_rows() {
<a href=#469 id=469 data-nosnippet>469</a> <span class="macro">assert_eq!</span>(value, vector.get(row));
<a href=#470 id=470 data-nosnippet>470</a> }
<a href=#471 id=471 data-nosnippet>471</a> }
<a href=#472 id=472 data-nosnippet>472</a> }
<a href=#473 id=473 data-nosnippet>473</a> }
<a href=#474 id=474 data-nosnippet>474</a>
<a href=#475 id=475 data-nosnippet>475</a> <span class="attr">#[test]
<a href=#476 id=476 data-nosnippet>476</a> </span><span class="kw">fn </span>test_create_default_vector_by_func() {
<a href=#477 id=477 data-nosnippet>477</a> <span class="kw">let </span>constraint = ColumnDefaultConstraint::Function(CURRENT_TIMESTAMP.to_string());
<a href=#478 id=478 data-nosnippet>478</a> <span class="kw">let </span>check_value = |v| {
<a href=#479 id=479 data-nosnippet>479</a> <span class="macro">assert!</span>(
<a href=#480 id=480 data-nosnippet>480</a> <span class="macro">matches!</span>(v, Value::Timestamp(<span class="kw">_</span>)),
<a href=#481 id=481 data-nosnippet>481</a> <span class="string">"v {:?} is not timestamp"</span>,
<a href=#482 id=482 data-nosnippet>482</a> v
<a href=#483 id=483 data-nosnippet>483</a> );
<a href=#484 id=484 data-nosnippet>484</a> };
<a href=#485 id=485 data-nosnippet>485</a> <span class="kw">let </span>check_vector = |v: VectorRef| {
<a href=#486 id=486 data-nosnippet>486</a> <span class="macro">assert_eq!</span>(<span class="number">4</span>, v.len());
<a href=#487 id=487 data-nosnippet>487</a> <span class="macro">assert!</span>(
<a href=#488 id=488 data-nosnippet>488</a> <span class="macro">matches!</span>(v.get(<span class="number">0</span>), Value::Timestamp(<span class="kw">_</span>)),
<a href=#489 id=489 data-nosnippet>489</a> <span class="string">"v {:?} is not timestamp"</span>,
<a href=#490 id=490 data-nosnippet>490</a> v.get(<span class="number">0</span>)
<a href=#491 id=491 data-nosnippet>491</a> );
<a href=#492 id=492 data-nosnippet>492</a> };
<a href=#493 id=493 data-nosnippet>493</a>
<a href=#494 id=494 data-nosnippet>494</a> <span class="comment">// Timestamp type.
<a href=#495 id=495 data-nosnippet>495</a> </span><span class="kw">let </span>data_type = ConcreteDataType::timestamp_millisecond_datatype();
<a href=#496 id=496 data-nosnippet>496</a> <span class="kw">let </span>v = constraint
<a href=#497 id=497 data-nosnippet>497</a> .create_default_vector(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>, <span class="number">4</span>)
<a href=#498 id=498 data-nosnippet>498</a> .unwrap();
<a href=#499 id=499 data-nosnippet>499</a> check_vector(v);
<a href=#500 id=500 data-nosnippet>500</a>
<a href=#501 id=501 data-nosnippet>501</a> <span class="kw">let </span>v = constraint.create_default(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>).unwrap();
<a href=#502 id=502 data-nosnippet>502</a> check_value(v);
<a href=#503 id=503 data-nosnippet>503</a>
<a href=#504 id=504 data-nosnippet>504</a> <span class="kw">let </span>data_type = ConcreteDataType::timestamp_second_datatype();
<a href=#505 id=505 data-nosnippet>505</a> <span class="kw">let </span>v = constraint
<a href=#506 id=506 data-nosnippet>506</a> .create_default_vector(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>, <span class="number">4</span>)
<a href=#507 id=507 data-nosnippet>507</a> .unwrap();
<a href=#508 id=508 data-nosnippet>508</a> check_vector(v);
<a href=#509 id=509 data-nosnippet>509</a>
<a href=#510 id=510 data-nosnippet>510</a> <span class="kw">let </span>v = constraint.create_default(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>).unwrap();
<a href=#511 id=511 data-nosnippet>511</a> check_value(v);
<a href=#512 id=512 data-nosnippet>512</a>
<a href=#513 id=513 data-nosnippet>513</a> <span class="kw">let </span>data_type = ConcreteDataType::timestamp_microsecond_datatype();
<a href=#514 id=514 data-nosnippet>514</a> <span class="kw">let </span>v = constraint
<a href=#515 id=515 data-nosnippet>515</a> .create_default_vector(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>, <span class="number">4</span>)
<a href=#516 id=516 data-nosnippet>516</a> .unwrap();
<a href=#517 id=517 data-nosnippet>517</a> check_vector(v);
<a href=#518 id=518 data-nosnippet>518</a>
<a href=#519 id=519 data-nosnippet>519</a> <span class="kw">let </span>v = constraint.create_default(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>).unwrap();
<a href=#520 id=520 data-nosnippet>520</a> check_value(v);
<a href=#521 id=521 data-nosnippet>521</a>
<a href=#522 id=522 data-nosnippet>522</a> <span class="kw">let </span>data_type = ConcreteDataType::timestamp_nanosecond_datatype();
<a href=#523 id=523 data-nosnippet>523</a> <span class="kw">let </span>v = constraint
<a href=#524 id=524 data-nosnippet>524</a> .create_default_vector(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>, <span class="number">4</span>)
<a href=#525 id=525 data-nosnippet>525</a> .unwrap();
<a href=#526 id=526 data-nosnippet>526</a> check_vector(v);
<a href=#527 id=527 data-nosnippet>527</a>
<a href=#528 id=528 data-nosnippet>528</a> <span class="kw">let </span>v = constraint.create_default(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>).unwrap();
<a href=#529 id=529 data-nosnippet>529</a> check_value(v);
<a href=#530 id=530 data-nosnippet>530</a>
<a href=#531 id=531 data-nosnippet>531</a> <span class="comment">// Int64 type.
<a href=#532 id=532 data-nosnippet>532</a> </span><span class="kw">let </span>data_type = ConcreteDataType::int64_datatype();
<a href=#533 id=533 data-nosnippet>533</a> <span class="kw">let </span>v = constraint.create_default_vector(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>, <span class="number">4</span>);
<a href=#534 id=534 data-nosnippet>534</a> <span class="macro">assert!</span>(v.is_err());
<a href=#535 id=535 data-nosnippet>535</a>
<a href=#536 id=536 data-nosnippet>536</a> <span class="kw">let </span>constraint = ColumnDefaultConstraint::Function(<span class="string">"no"</span>.to_string());
<a href=#537 id=537 data-nosnippet>537</a> <span class="kw">let </span>data_type = ConcreteDataType::timestamp_millisecond_datatype();
<a href=#538 id=538 data-nosnippet>538</a> <span class="macro">assert!</span>(
<a href=#539 id=539 data-nosnippet>539</a> constraint
<a href=#540 id=540 data-nosnippet>540</a> .create_default_vector(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>, <span class="number">4</span>)
<a href=#541 id=541 data-nosnippet>541</a> .is_err()
<a href=#542 id=542 data-nosnippet>542</a> );
<a href=#543 id=543 data-nosnippet>543</a> <span class="macro">assert!</span>(constraint.create_default(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>).is_err());
<a href=#544 id=544 data-nosnippet>544</a> }
<a href=#545 id=545 data-nosnippet>545</a>
<a href=#546 id=546 data-nosnippet>546</a> <span class="attr">#[test]
<a href=#547 id=547 data-nosnippet>547</a> </span><span class="kw">fn </span>test_create_by_func_and_invalid_type() {
<a href=#548 id=548 data-nosnippet>548</a> <span class="kw">let </span>constraint = ColumnDefaultConstraint::Function(CURRENT_TIMESTAMP.to_string());
<a href=#549 id=549 data-nosnippet>549</a> <span class="kw">let </span>data_type = ConcreteDataType::boolean_datatype();
<a href=#550 id=550 data-nosnippet>550</a> <span class="kw">let </span>err = constraint
<a href=#551 id=551 data-nosnippet>551</a> .create_default_vector(<span class="kw-2">&amp;</span>data_type, <span class="bool-val">false</span>, <span class="number">4</span>)
<a href=#552 id=552 data-nosnippet>552</a> .unwrap_err();
<a href=#553 id=553 data-nosnippet>553</a> <span class="macro">assert!</span>(<span class="macro">matches!</span>(err, Error::DefaultValueType { .. }), <span class="string">"{err:?}"</span>);
<a href=#554 id=554 data-nosnippet>554</a> }
<a href=#555 id=555 data-nosnippet>555</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/schema/ext.rs`."><title>ext.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/schema/</div>ext.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span><span class="kw">crate</span>::extension::json;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="doccomment">/// Add some useful utilities upon Arrow's [Schema](arrow_schema::Schema).
<a href=#18 id=18 data-nosnippet>18</a></span><span class="kw">pub trait </span>ArrowSchemaExt {
<a href=#19 id=19 data-nosnippet>19</a> <span class="doccomment">/// Check if this [Schema](arrow_schema::Schema) has JSON extension field.
<a href=#20 id=20 data-nosnippet>20</a> </span><span class="kw">fn </span>has_json_extension_field(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool;
<a href=#21 id=21 data-nosnippet>21</a>}
<a href=#22 id=22 data-nosnippet>22</a>
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">impl </span>ArrowSchemaExt <span class="kw">for </span>arrow_schema::Schema {
<a href=#24 id=24 data-nosnippet>24</a> <span class="kw">fn </span>has_json_extension_field(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#25 id=25 data-nosnippet>25</a> <span class="self">self</span>.fields().iter().any(json::is_any_json_extension_type)
<a href=#26 id=26 data-nosnippet>26</a> }
<a href=#27 id=27 data-nosnippet>27</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/serialize.rs`."><title>serialize.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>serialize.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span><span class="kw">crate</span>::error::Result;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">pub trait </span>Serializable: Send + Sync {
<a href=#18 id=18 data-nosnippet>18</a> <span class="doccomment">/// Serialize a column of value with given type to JSON value
<a href=#19 id=19 data-nosnippet>19</a> </span><span class="kw">fn </span>serialize_to_json(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;serde_json::Value&gt;&gt;;
<a href=#20 id=20 data-nosnippet>20</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/time.rs`."><title>time.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>time.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>common_time::time::Time;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>common_time::timestamp::TimeUnit;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>paste::paste;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span><span class="kw">crate</span>::prelude::{Scalar, Value, ValueRef};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::scalars::ScalarRef;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::types::{
<a href=#23 id=23 data-nosnippet>23</a> TimeMicrosecondType, TimeMillisecondType, TimeNanosecondType, TimeSecondType, WrapperType,
<a href=#24 id=24 data-nosnippet>24</a>};
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#26 id=26 data-nosnippet>26</a> TimeMicrosecondVector, TimeMillisecondVector, TimeNanosecondVector, TimeSecondVector,
<a href=#27 id=27 data-nosnippet>27</a>};
<a href=#28 id=28 data-nosnippet>28</a>
<a href=#29 id=29 data-nosnippet>29</a><span class="macro">macro_rules!</span> define_time_with_unit {
<a href=#30 id=30 data-nosnippet>30</a> (<span class="macro-nonterminal">$unit</span>: ident, <span class="macro-nonterminal">$native_ty</span>: ty) =&gt; {
<a href=#31 id=31 data-nosnippet>31</a> <span class="macro">paste!</span> {
<a href=#32 id=32 data-nosnippet>32</a> <span class="attr">#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
<a href=#33 id=33 data-nosnippet>33</a> </span><span class="kw">pub struct </span>[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;](<span class="kw">pub </span>Time);
<a href=#34 id=34 data-nosnippet>34</a>
<a href=#35 id=35 data-nosnippet>35</a> <span class="kw">impl </span>[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#36 id=36 data-nosnippet>36</a> <span class="kw">pub fn </span>new(val: i64) -&gt; <span class="self">Self </span>{
<a href=#37 id=37 data-nosnippet>37</a> <span class="self">Self</span>(Time::new(val, TimeUnit::<span class="macro-nonterminal">$unit</span>))
<a href=#38 id=38 data-nosnippet>38</a> }
<a href=#39 id=39 data-nosnippet>39</a> }
<a href=#40 id=40 data-nosnippet>40</a>
<a href=#41 id=41 data-nosnippet>41</a> <span class="kw">impl </span>Default <span class="kw">for </span>[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#42 id=42 data-nosnippet>42</a> <span class="kw">fn </span>default() -&gt; <span class="self">Self </span>{
<a href=#43 id=43 data-nosnippet>43</a> <span class="self">Self</span>::new(<span class="number">0</span>)
<a href=#44 id=44 data-nosnippet>44</a> }
<a href=#45 id=45 data-nosnippet>45</a> }
<a href=#46 id=46 data-nosnippet>46</a>
<a href=#47 id=47 data-nosnippet>47</a> <span class="kw">impl </span>From&lt;[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]&gt; <span class="kw">for </span>Value {
<a href=#48 id=48 data-nosnippet>48</a> <span class="kw">fn </span>from(t: [&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]) -&gt; Value {
<a href=#49 id=49 data-nosnippet>49</a> Value::Time(t.<span class="number">0</span>)
<a href=#50 id=50 data-nosnippet>50</a> }
<a href=#51 id=51 data-nosnippet>51</a> }
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a> <span class="kw">impl </span>From&lt;[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]&gt; <span class="kw">for </span>serde_json::Value {
<a href=#54 id=54 data-nosnippet>54</a> <span class="kw">fn </span>from(t: [&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]) -&gt; <span class="self">Self </span>{
<a href=#55 id=55 data-nosnippet>55</a> t.<span class="number">0</span>.into()
<a href=#56 id=56 data-nosnippet>56</a> }
<a href=#57 id=57 data-nosnippet>57</a> }
<a href=#58 id=58 data-nosnippet>58</a>
<a href=#59 id=59 data-nosnippet>59</a> <span class="kw">impl </span>From&lt;[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]&gt; <span class="kw">for </span>ValueRef&lt;<span class="lifetime">'static</span>&gt; {
<a href=#60 id=60 data-nosnippet>60</a> <span class="kw">fn </span>from(t: [&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]) -&gt; <span class="self">Self </span>{
<a href=#61 id=61 data-nosnippet>61</a> ValueRef::Time(t.<span class="number">0</span>)
<a href=#62 id=62 data-nosnippet>62</a> }
<a href=#63 id=63 data-nosnippet>63</a> }
<a href=#64 id=64 data-nosnippet>64</a>
<a href=#65 id=65 data-nosnippet>65</a> <span class="kw">impl </span>Scalar <span class="kw">for </span>[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#66 id=66 data-nosnippet>66</a> <span class="kw">type </span>VectorType = [&lt;Time <span class="macro-nonterminal">$unit </span>Vector&gt;];
<a href=#67 id=67 data-nosnippet>67</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = [&lt;Time <span class="macro-nonterminal">$unit</span>&gt;];
<a href=#68 id=68 data-nosnippet>68</a>
<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'_</span>&gt; {
<a href=#70 id=70 data-nosnippet>70</a> <span class="kw-2">*</span><span class="self">self
<a href=#71 id=71 data-nosnippet>71</a> </span>}
<a href=#72 id=72 data-nosnippet>72</a>
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(
<a href=#74 id=74 data-nosnippet>74</a> long: <span class="self">Self</span>::RefType&lt;<span class="lifetime">'long</span>&gt;,
<a href=#75 id=75 data-nosnippet>75</a> ) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'short</span>&gt; {
<a href=#76 id=76 data-nosnippet>76</a> long
<a href=#77 id=77 data-nosnippet>77</a> }
<a href=#78 id=78 data-nosnippet>78</a> }
<a href=#79 id=79 data-nosnippet>79</a>
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; ScalarRef&lt;<span class="lifetime">'a</span>&gt; <span class="kw">for </span>[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#81 id=81 data-nosnippet>81</a> <span class="kw">type </span>ScalarType = [&lt;Time <span class="macro-nonterminal">$unit</span>&gt;];
<a href=#82 id=82 data-nosnippet>82</a>
<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::ScalarType {
<a href=#84 id=84 data-nosnippet>84</a> <span class="kw-2">*</span><span class="self">self
<a href=#85 id=85 data-nosnippet>85</a> </span>}
<a href=#86 id=86 data-nosnippet>86</a> }
<a href=#87 id=87 data-nosnippet>87</a>
<a href=#88 id=88 data-nosnippet>88</a> <span class="kw">impl </span>WrapperType <span class="kw">for </span>[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">type </span>LogicalType = [&lt;Time <span class="macro-nonterminal">$unit </span>Type&gt;];
<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">type </span>Native = <span class="macro-nonterminal">$native_ty</span>;
<a href=#91 id=91 data-nosnippet>91</a>
<a href=#92 id=92 data-nosnippet>92</a> <span class="kw">fn </span>from_native(value: <span class="self">Self</span>::Native) -&gt; <span class="self">Self </span>{
<a href=#93 id=93 data-nosnippet>93</a> <span class="self">Self</span>::new(value.into())
<a href=#94 id=94 data-nosnippet>94</a> }
<a href=#95 id=95 data-nosnippet>95</a>
<a href=#96 id=96 data-nosnippet>96</a> <span class="kw">fn </span>into_native(<span class="self">self</span>) -&gt; <span class="self">Self</span>::Native {
<a href=#97 id=97 data-nosnippet>97</a> <span class="self">self</span>.<span class="number">0</span>.into()
<a href=#98 id=98 data-nosnippet>98</a> }
<a href=#99 id=99 data-nosnippet>99</a> }
<a href=#100 id=100 data-nosnippet>100</a>
<a href=#101 id=101 data-nosnippet>101</a> <span class="kw">impl </span>From&lt;i64&gt; <span class="kw">for </span>[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#102 id=102 data-nosnippet>102</a> <span class="kw">fn </span>from(val: i64) -&gt; <span class="self">Self </span>{
<a href=#103 id=103 data-nosnippet>103</a> [&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]::from_native(val <span class="kw">as </span><span class="macro-nonterminal">$native_ty</span>)
<a href=#104 id=104 data-nosnippet>104</a> }
<a href=#105 id=105 data-nosnippet>105</a> }
<a href=#106 id=106 data-nosnippet>106</a>
<a href=#107 id=107 data-nosnippet>107</a> <span class="kw">impl </span>From&lt;[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]&gt; <span class="kw">for </span>i64 {
<a href=#108 id=108 data-nosnippet>108</a> <span class="kw">fn </span>from(val: [&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]) -&gt; <span class="self">Self </span>{
<a href=#109 id=109 data-nosnippet>109</a> val.<span class="number">0</span>.value()
<a href=#110 id=110 data-nosnippet>110</a> }
<a href=#111 id=111 data-nosnippet>111</a> }
<a href=#112 id=112 data-nosnippet>112</a>
<a href=#113 id=113 data-nosnippet>113</a> <span class="kw">impl </span>TryFrom&lt;Value&gt; <span class="kw">for </span><span class="prelude-ty">Option</span>&lt;[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]&gt; {
<a href=#114 id=114 data-nosnippet>114</a> <span class="kw">type </span>Error = <span class="macro-nonterminal">$crate::error::Error</span>;
<a href=#115 id=115 data-nosnippet>115</a>
<a href=#116 id=116 data-nosnippet>116</a> <span class="attr">#[inline]
<a href=#117 id=117 data-nosnippet>117</a> </span><span class="kw">fn </span>try_from(from: Value) -&gt; std::result::Result&lt;<span class="self">Self</span>, <span class="self">Self</span>::Error&gt; {
<a href=#118 id=118 data-nosnippet>118</a> <span class="kw">match </span>from {
<a href=#119 id=119 data-nosnippet>119</a> Value::Time(v) <span class="kw">if </span><span class="kw-2">*</span>v.unit() == TimeUnit::<span class="macro-nonterminal">$unit </span>=&gt; {
<a href=#120 id=120 data-nosnippet>120</a> <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>([&lt;Time <span class="macro-nonterminal">$unit</span>&gt;](v)))
<a href=#121 id=121 data-nosnippet>121</a> },
<a href=#122 id=122 data-nosnippet>122</a> Value::Null =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">_ </span>=&gt; <span class="macro-nonterminal">$crate::error::TryFromValueSnafu </span>{
<a href=#124 id=124 data-nosnippet>124</a> reason: <span class="macro">format!</span>(<span class="string">"{:?} is not a {}"</span>, from, <span class="macro">stringify!</span>([&lt;Time <span class="macro-nonterminal">$unit</span>&gt;])),
<a href=#125 id=125 data-nosnippet>125</a> }
<a href=#126 id=126 data-nosnippet>126</a> .fail(),
<a href=#127 id=127 data-nosnippet>127</a> }
<a href=#128 id=128 data-nosnippet>128</a> }
<a href=#129 id=129 data-nosnippet>129</a> }
<a href=#130 id=130 data-nosnippet>130</a> }
<a href=#131 id=131 data-nosnippet>131</a> };
<a href=#132 id=132 data-nosnippet>132</a>}
<a href=#133 id=133 data-nosnippet>133</a>
<a href=#134 id=134 data-nosnippet>134</a><span class="macro">define_time_with_unit!</span>(Second, i32);
<a href=#135 id=135 data-nosnippet>135</a><span class="macro">define_time_with_unit!</span>(Millisecond, i32);
<a href=#136 id=136 data-nosnippet>136</a><span class="macro">define_time_with_unit!</span>(Microsecond, i64);
<a href=#137 id=137 data-nosnippet>137</a><span class="macro">define_time_with_unit!</span>(Nanosecond, i64);
<a href=#138 id=138 data-nosnippet>138</a>
<a href=#139 id=139 data-nosnippet>139</a><span class="attr">#[cfg(test)]
<a href=#140 id=140 data-nosnippet>140</a></span><span class="kw">mod </span>tests {
<a href=#141 id=141 data-nosnippet>141</a> <span class="kw">use </span>common_time::timezone::set_default_timezone;
<a href=#142 id=142 data-nosnippet>142</a>
<a href=#143 id=143 data-nosnippet>143</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#144 id=144 data-nosnippet>144</a>
<a href=#145 id=145 data-nosnippet>145</a> <span class="attr">#[test]
<a href=#146 id=146 data-nosnippet>146</a> </span><span class="kw">fn </span>test_to_serde_json_value() {
<a href=#147 id=147 data-nosnippet>147</a> set_default_timezone(<span class="prelude-val">Some</span>(<span class="string">"Asia/Shanghai"</span>)).unwrap();
<a href=#148 id=148 data-nosnippet>148</a> <span class="kw">let </span>time = TimeSecond::new(<span class="number">123</span>);
<a href=#149 id=149 data-nosnippet>149</a> <span class="kw">let </span>val = serde_json::Value::from(time);
<a href=#150 id=150 data-nosnippet>150</a> <span class="kw">match </span>val {
<a href=#151 id=151 data-nosnippet>151</a> serde_json::Value::String(s) =&gt; {
<a href=#152 id=152 data-nosnippet>152</a> <span class="macro">assert_eq!</span>(<span class="string">"08:02:03+0800"</span>, s);
<a href=#153 id=153 data-nosnippet>153</a> }
<a href=#154 id=154 data-nosnippet>154</a> <span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(),
<a href=#155 id=155 data-nosnippet>155</a> }
<a href=#156 id=156 data-nosnippet>156</a> }
<a href=#157 id=157 data-nosnippet>157</a>
<a href=#158 id=158 data-nosnippet>158</a> <span class="attr">#[test]
<a href=#159 id=159 data-nosnippet>159</a> </span><span class="kw">fn </span>test_time_scalar() {
<a href=#160 id=160 data-nosnippet>160</a> <span class="kw">let </span>time = TimeSecond::new(<span class="number">123</span>);
<a href=#161 id=161 data-nosnippet>161</a> <span class="macro">assert_eq!</span>(time, time.as_scalar_ref());
<a href=#162 id=162 data-nosnippet>162</a> <span class="macro">assert_eq!</span>(time, time.to_owned_scalar());
<a href=#163 id=163 data-nosnippet>163</a> <span class="macro">assert_eq!</span>(<span class="number">123</span>, time.into_native());
<a href=#164 id=164 data-nosnippet>164</a> <span class="kw">let </span>time = TimeMillisecond::new(<span class="number">123</span>);
<a href=#165 id=165 data-nosnippet>165</a> <span class="macro">assert_eq!</span>(time, time.as_scalar_ref());
<a href=#166 id=166 data-nosnippet>166</a> <span class="macro">assert_eq!</span>(time, time.to_owned_scalar());
<a href=#167 id=167 data-nosnippet>167</a> <span class="macro">assert_eq!</span>(<span class="number">123</span>, time.into_native());
<a href=#168 id=168 data-nosnippet>168</a> <span class="kw">let </span>time = TimeMicrosecond::new(<span class="number">123</span>);
<a href=#169 id=169 data-nosnippet>169</a> <span class="macro">assert_eq!</span>(time, time.as_scalar_ref());
<a href=#170 id=170 data-nosnippet>170</a> <span class="macro">assert_eq!</span>(time, time.to_owned_scalar());
<a href=#171 id=171 data-nosnippet>171</a> <span class="macro">assert_eq!</span>(<span class="number">123</span>, time.into_native());
<a href=#172 id=172 data-nosnippet>172</a> <span class="kw">let </span>time = TimeNanosecond::new(<span class="number">123</span>);
<a href=#173 id=173 data-nosnippet>173</a> <span class="macro">assert_eq!</span>(time, time.as_scalar_ref());
<a href=#174 id=174 data-nosnippet>174</a> <span class="macro">assert_eq!</span>(time, time.to_owned_scalar());
<a href=#175 id=175 data-nosnippet>175</a> <span class="macro">assert_eq!</span>(<span class="number">123</span>, time.into_native());
<a href=#176 id=176 data-nosnippet>176</a> }
<a href=#177 id=177 data-nosnippet>177</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/timestamp.rs`."><title>timestamp.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>timestamp.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>arrow_array::{
<a href=#16 id=16 data-nosnippet>16</a> Array, ArrayRef, PrimitiveArray, TimestampMicrosecondArray, TimestampMillisecondArray,
<a href=#17 id=17 data-nosnippet>17</a> TimestampNanosecondArray, TimestampSecondArray,
<a href=#18 id=18 data-nosnippet>18</a>};
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>arrow_schema::DataType;
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>common_time::Timestamp;
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>common_time::timestamp::TimeUnit;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>paste::paste;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#24 id=24 data-nosnippet>24</a>
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::prelude::{Scalar, Value, ValueRef};
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::scalars::ScalarRef;
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::types::{
<a href=#28 id=28 data-nosnippet>28</a> TimestampMicrosecondType, TimestampMillisecondType, TimestampNanosecondType,
<a href=#29 id=29 data-nosnippet>29</a> TimestampSecondType, WrapperType,
<a href=#30 id=30 data-nosnippet>30</a>};
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#32 id=32 data-nosnippet>32</a> TimestampMicrosecondVector, TimestampMillisecondVector, TimestampNanosecondVector,
<a href=#33 id=33 data-nosnippet>33</a> TimestampSecondVector,
<a href=#34 id=34 data-nosnippet>34</a>};
<a href=#35 id=35 data-nosnippet>35</a>
<a href=#36 id=36 data-nosnippet>36</a><span class="macro">macro_rules!</span> define_timestamp_with_unit {
<a href=#37 id=37 data-nosnippet>37</a> (<span class="macro-nonterminal">$unit</span>: ident) =&gt; {
<a href=#38 id=38 data-nosnippet>38</a> <span class="macro">paste!</span> {
<a href=#39 id=39 data-nosnippet>39</a> <span class="attr">#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
<a href=#40 id=40 data-nosnippet>40</a> </span><span class="kw">pub struct </span>[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;](<span class="kw">pub </span>Timestamp);
<a href=#41 id=41 data-nosnippet>41</a>
<a href=#42 id=42 data-nosnippet>42</a> <span class="kw">impl </span>[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#43 id=43 data-nosnippet>43</a> <span class="kw">pub fn </span>new(val: i64) -&gt; <span class="self">Self </span>{
<a href=#44 id=44 data-nosnippet>44</a> <span class="self">Self</span>(Timestamp::new(val, TimeUnit::<span class="macro-nonterminal">$unit</span>))
<a href=#45 id=45 data-nosnippet>45</a> }
<a href=#46 id=46 data-nosnippet>46</a> }
<a href=#47 id=47 data-nosnippet>47</a>
<a href=#48 id=48 data-nosnippet>48</a> <span class="kw">impl </span>Default <span class="kw">for </span>[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">fn </span>default() -&gt; <span class="self">Self </span>{
<a href=#50 id=50 data-nosnippet>50</a> <span class="self">Self</span>::new(<span class="number">0</span>)
<a href=#51 id=51 data-nosnippet>51</a> }
<a href=#52 id=52 data-nosnippet>52</a> }
<a href=#53 id=53 data-nosnippet>53</a>
<a href=#54 id=54 data-nosnippet>54</a> <span class="kw">impl </span>From&lt;[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]&gt; <span class="kw">for </span>Value {
<a href=#55 id=55 data-nosnippet>55</a> <span class="kw">fn </span>from(t: [&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]) -&gt; Value {
<a href=#56 id=56 data-nosnippet>56</a> Value::Timestamp(t.<span class="number">0</span>)
<a href=#57 id=57 data-nosnippet>57</a> }
<a href=#58 id=58 data-nosnippet>58</a> }
<a href=#59 id=59 data-nosnippet>59</a>
<a href=#60 id=60 data-nosnippet>60</a> <span class="kw">impl </span>From&lt;[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]&gt; <span class="kw">for </span>serde_json::Value {
<a href=#61 id=61 data-nosnippet>61</a> <span class="kw">fn </span>from(t: [&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]) -&gt; <span class="self">Self </span>{
<a href=#62 id=62 data-nosnippet>62</a> t.<span class="number">0</span>.into()
<a href=#63 id=63 data-nosnippet>63</a> }
<a href=#64 id=64 data-nosnippet>64</a> }
<a href=#65 id=65 data-nosnippet>65</a>
<a href=#66 id=66 data-nosnippet>66</a> <span class="kw">impl </span>From&lt;[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]&gt; <span class="kw">for </span>ValueRef&lt;<span class="lifetime">'static</span>&gt; {
<a href=#67 id=67 data-nosnippet>67</a> <span class="kw">fn </span>from(t: [&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]) -&gt; <span class="self">Self </span>{
<a href=#68 id=68 data-nosnippet>68</a> ValueRef::Timestamp(t.<span class="number">0</span>)
<a href=#69 id=69 data-nosnippet>69</a> }
<a href=#70 id=70 data-nosnippet>70</a> }
<a href=#71 id=71 data-nosnippet>71</a>
<a href=#72 id=72 data-nosnippet>72</a> <span class="kw">impl </span>Scalar <span class="kw">for </span>[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">type </span>VectorType = [&lt;Timestamp <span class="macro-nonterminal">$unit </span>Vector&gt;];
<a href=#74 id=74 data-nosnippet>74</a> <span class="kw">type </span>RefType&lt;<span class="lifetime">'a</span>&gt; = [&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;];
<a href=#75 id=75 data-nosnippet>75</a>
<a href=#76 id=76 data-nosnippet>76</a> <span class="kw">fn </span>as_scalar_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'_</span>&gt; {
<a href=#77 id=77 data-nosnippet>77</a> <span class="kw-2">*</span><span class="self">self
<a href=#78 id=78 data-nosnippet>78</a> </span>}
<a href=#79 id=79 data-nosnippet>79</a>
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">fn </span>upcast_gat&lt;<span class="lifetime">'short</span>, <span class="lifetime">'long</span>: <span class="lifetime">'short</span>&gt;(
<a href=#81 id=81 data-nosnippet>81</a> long: <span class="self">Self</span>::RefType&lt;<span class="lifetime">'long</span>&gt;,
<a href=#82 id=82 data-nosnippet>82</a> ) -&gt; <span class="self">Self</span>::RefType&lt;<span class="lifetime">'short</span>&gt; {
<a href=#83 id=83 data-nosnippet>83</a> long
<a href=#84 id=84 data-nosnippet>84</a> }
<a href=#85 id=85 data-nosnippet>85</a> }
<a href=#86 id=86 data-nosnippet>86</a>
<a href=#87 id=87 data-nosnippet>87</a> <span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; ScalarRef&lt;<span class="lifetime">'a</span>&gt; <span class="kw">for </span>[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#88 id=88 data-nosnippet>88</a> <span class="kw">type </span>ScalarType = [&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;];
<a href=#89 id=89 data-nosnippet>89</a>
<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">fn </span>to_owned_scalar(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::ScalarType {
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw-2">*</span><span class="self">self
<a href=#92 id=92 data-nosnippet>92</a> </span>}
<a href=#93 id=93 data-nosnippet>93</a> }
<a href=#94 id=94 data-nosnippet>94</a>
<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">impl </span>WrapperType <span class="kw">for </span>[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#96 id=96 data-nosnippet>96</a> <span class="kw">type </span>LogicalType = [&lt;Timestamp <span class="macro-nonterminal">$unit </span>Type&gt;];
<a href=#97 id=97 data-nosnippet>97</a> <span class="kw">type </span>Native = i64;
<a href=#98 id=98 data-nosnippet>98</a>
<a href=#99 id=99 data-nosnippet>99</a> <span class="kw">fn </span>from_native(value: <span class="self">Self</span>::Native) -&gt; <span class="self">Self </span>{
<a href=#100 id=100 data-nosnippet>100</a> <span class="self">Self</span>::new(value)
<a href=#101 id=101 data-nosnippet>101</a> }
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a> <span class="kw">fn </span>into_native(<span class="self">self</span>) -&gt; <span class="self">Self</span>::Native {
<a href=#104 id=104 data-nosnippet>104</a> <span class="self">self</span>.<span class="number">0</span>.into()
<a href=#105 id=105 data-nosnippet>105</a> }
<a href=#106 id=106 data-nosnippet>106</a> }
<a href=#107 id=107 data-nosnippet>107</a>
<a href=#108 id=108 data-nosnippet>108</a> <span class="kw">impl </span>From&lt;i64&gt; <span class="kw">for </span>[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;] {
<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">fn </span>from(val: i64) -&gt; <span class="self">Self </span>{
<a href=#110 id=110 data-nosnippet>110</a> [&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]::from_native(val)
<a href=#111 id=111 data-nosnippet>111</a> }
<a href=#112 id=112 data-nosnippet>112</a> }
<a href=#113 id=113 data-nosnippet>113</a>
<a href=#114 id=114 data-nosnippet>114</a> <span class="kw">impl </span>From&lt;[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]&gt; <span class="kw">for </span>i64{
<a href=#115 id=115 data-nosnippet>115</a> <span class="kw">fn </span>from(val: [&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]) -&gt; <span class="self">Self </span>{
<a href=#116 id=116 data-nosnippet>116</a> val.<span class="number">0</span>.value()
<a href=#117 id=117 data-nosnippet>117</a> }
<a href=#118 id=118 data-nosnippet>118</a> }
<a href=#119 id=119 data-nosnippet>119</a>
<a href=#120 id=120 data-nosnippet>120</a> <span class="kw">impl </span>TryFrom&lt;Value&gt; <span class="kw">for </span><span class="prelude-ty">Option</span>&lt;[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]&gt; {
<a href=#121 id=121 data-nosnippet>121</a> <span class="kw">type </span>Error = <span class="macro-nonterminal">$crate::error::Error</span>;
<a href=#122 id=122 data-nosnippet>122</a>
<a href=#123 id=123 data-nosnippet>123</a> <span class="attr">#[inline]
<a href=#124 id=124 data-nosnippet>124</a> </span><span class="kw">fn </span>try_from(from: Value) -&gt; std::result::Result&lt;<span class="self">Self</span>, <span class="self">Self</span>::Error&gt; {
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">match </span>from {
<a href=#126 id=126 data-nosnippet>126</a> Value::Timestamp(v) <span class="kw">if </span>v.unit() == TimeUnit::<span class="macro-nonterminal">$unit </span>=&gt; {
<a href=#127 id=127 data-nosnippet>127</a> <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>([&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;](v)))
<a href=#128 id=128 data-nosnippet>128</a> },
<a href=#129 id=129 data-nosnippet>129</a> Value::Null =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
<a href=#130 id=130 data-nosnippet>130</a> <span class="kw">_ </span>=&gt; <span class="macro-nonterminal">$crate::error::TryFromValueSnafu </span>{
<a href=#131 id=131 data-nosnippet>131</a> reason: <span class="macro">format!</span>(<span class="string">"{:?} is not a {}"</span>, from, <span class="macro">stringify!</span>([&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;])),
<a href=#132 id=132 data-nosnippet>132</a> }
<a href=#133 id=133 data-nosnippet>133</a> .fail(),
<a href=#134 id=134 data-nosnippet>134</a> }
<a href=#135 id=135 data-nosnippet>135</a> }
<a href=#136 id=136 data-nosnippet>136</a> }
<a href=#137 id=137 data-nosnippet>137</a> }
<a href=#138 id=138 data-nosnippet>138</a> };
<a href=#139 id=139 data-nosnippet>139</a>}
<a href=#140 id=140 data-nosnippet>140</a>
<a href=#141 id=141 data-nosnippet>141</a><span class="macro">define_timestamp_with_unit!</span>(Second);
<a href=#142 id=142 data-nosnippet>142</a><span class="macro">define_timestamp_with_unit!</span>(Millisecond);
<a href=#143 id=143 data-nosnippet>143</a><span class="macro">define_timestamp_with_unit!</span>(Microsecond);
<a href=#144 id=144 data-nosnippet>144</a><span class="macro">define_timestamp_with_unit!</span>(Nanosecond);
<a href=#145 id=145 data-nosnippet>145</a>
<a href=#146 id=146 data-nosnippet>146</a><span class="doccomment">/// Converts a timestamp array to a primitive array and the time unit.
<a href=#147 id=147 data-nosnippet>147</a></span><span class="kw">pub fn </span>timestamp_array_to_primitive(
<a href=#148 id=148 data-nosnippet>148</a> ts_array: <span class="kw-2">&amp;</span>ArrayRef,
<a href=#149 id=149 data-nosnippet>149</a>) -&gt; <span class="prelude-ty">Option</span>&lt;(
<a href=#150 id=150 data-nosnippet>150</a> PrimitiveArray&lt;arrow_array::types::Int64Type&gt;,
<a href=#151 id=151 data-nosnippet>151</a> arrow::datatypes::TimeUnit,
<a href=#152 id=152 data-nosnippet>152</a>)&gt; {
<a href=#153 id=153 data-nosnippet>153</a> <span class="kw">let </span>DataType::Timestamp(unit, <span class="kw">_</span>) = ts_array.data_type() <span class="kw">else </span>{
<a href=#154 id=154 data-nosnippet>154</a> <span class="kw">return </span><span class="prelude-val">None</span>;
<a href=#155 id=155 data-nosnippet>155</a> };
<a href=#156 id=156 data-nosnippet>156</a>
<a href=#157 id=157 data-nosnippet>157</a> <span class="kw">let </span>ts_primitive = <span class="kw">match </span>unit {
<a href=#158 id=158 data-nosnippet>158</a> arrow_schema::TimeUnit::Second =&gt; ts_array
<a href=#159 id=159 data-nosnippet>159</a> .as_any()
<a href=#160 id=160 data-nosnippet>160</a> .downcast_ref::&lt;TimestampSecondArray&gt;()
<a href=#161 id=161 data-nosnippet>161</a> .unwrap()
<a href=#162 id=162 data-nosnippet>162</a> .reinterpret_cast::&lt;arrow_array::types::Int64Type&gt;(),
<a href=#163 id=163 data-nosnippet>163</a> arrow_schema::TimeUnit::Millisecond =&gt; ts_array
<a href=#164 id=164 data-nosnippet>164</a> .as_any()
<a href=#165 id=165 data-nosnippet>165</a> .downcast_ref::&lt;TimestampMillisecondArray&gt;()
<a href=#166 id=166 data-nosnippet>166</a> .unwrap()
<a href=#167 id=167 data-nosnippet>167</a> .reinterpret_cast::&lt;arrow_array::types::Int64Type&gt;(),
<a href=#168 id=168 data-nosnippet>168</a> arrow_schema::TimeUnit::Microsecond =&gt; ts_array
<a href=#169 id=169 data-nosnippet>169</a> .as_any()
<a href=#170 id=170 data-nosnippet>170</a> .downcast_ref::&lt;TimestampMicrosecondArray&gt;()
<a href=#171 id=171 data-nosnippet>171</a> .unwrap()
<a href=#172 id=172 data-nosnippet>172</a> .reinterpret_cast::&lt;arrow_array::types::Int64Type&gt;(),
<a href=#173 id=173 data-nosnippet>173</a> arrow_schema::TimeUnit::Nanosecond =&gt; ts_array
<a href=#174 id=174 data-nosnippet>174</a> .as_any()
<a href=#175 id=175 data-nosnippet>175</a> .downcast_ref::&lt;TimestampNanosecondArray&gt;()
<a href=#176 id=176 data-nosnippet>176</a> .unwrap()
<a href=#177 id=177 data-nosnippet>177</a> .reinterpret_cast::&lt;arrow_array::types::Int64Type&gt;(),
<a href=#178 id=178 data-nosnippet>178</a> };
<a href=#179 id=179 data-nosnippet>179</a> <span class="prelude-val">Some</span>((ts_primitive, <span class="kw-2">*</span>unit))
<a href=#180 id=180 data-nosnippet>180</a>}
<a href=#181 id=181 data-nosnippet>181</a>
<a href=#182 id=182 data-nosnippet>182</a><span class="doccomment">/// Appends non-null timestamps in the source array's native time unit.
<a href=#183 id=183 data-nosnippet>183</a>///
<a href=#184 id=184 data-nosnippet>184</a>/// Returns `None` for a non-timestamp array without changing `timestamps`.
<a href=#185 id=185 data-nosnippet>185</a></span><span class="kw">pub fn </span>append_timestamps(ts_array: <span class="kw-2">&amp;</span>ArrayRef, timestamps: <span class="kw-2">&amp;mut </span>Vec&lt;i64&gt;) -&gt; <span class="prelude-ty">Option</span>&lt;()&gt; {
<a href=#186 id=186 data-nosnippet>186</a> <span class="kw">let </span>(values, <span class="kw">_</span>) = timestamp_array_to_primitive(ts_array)<span class="question-mark">?</span>;
<a href=#187 id=187 data-nosnippet>187</a> <span class="kw">if </span>values.null_count() == <span class="number">0 </span>{
<a href=#188 id=188 data-nosnippet>188</a> timestamps.extend_from_slice(values.values());
<a href=#189 id=189 data-nosnippet>189</a> } <span class="kw">else </span>{
<a href=#190 id=190 data-nosnippet>190</a> timestamps.extend(values.iter().flatten());
<a href=#191 id=191 data-nosnippet>191</a> }
<a href=#192 id=192 data-nosnippet>192</a> <span class="prelude-val">Some</span>(())
<a href=#193 id=193 data-nosnippet>193</a>}
<a href=#194 id=194 data-nosnippet>194</a>
<a href=#195 id=195 data-nosnippet>195</a><span class="attr">#[cfg(test)]
<a href=#196 id=196 data-nosnippet>196</a></span><span class="kw">mod </span>tests {
<a href=#197 id=197 data-nosnippet>197</a> <span class="kw">use </span>std::sync::Arc;
<a href=#198 id=198 data-nosnippet>198</a>
<a href=#199 id=199 data-nosnippet>199</a> <span class="kw">use </span>arrow_array::Int64Array;
<a href=#200 id=200 data-nosnippet>200</a> <span class="kw">use </span>common_time::timezone::set_default_timezone;
<a href=#201 id=201 data-nosnippet>201</a>
<a href=#202 id=202 data-nosnippet>202</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#203 id=203 data-nosnippet>203</a>
<a href=#204 id=204 data-nosnippet>204</a> <span class="attr">#[test]
<a href=#205 id=205 data-nosnippet>205</a> </span><span class="kw">fn </span>test_to_serde_json_value() {
<a href=#206 id=206 data-nosnippet>206</a> set_default_timezone(<span class="prelude-val">Some</span>(<span class="string">"Asia/Shanghai"</span>)).unwrap();
<a href=#207 id=207 data-nosnippet>207</a> <span class="kw">let </span>ts = TimestampSecond::new(<span class="number">123</span>);
<a href=#208 id=208 data-nosnippet>208</a> <span class="kw">let </span>val = serde_json::Value::from(ts);
<a href=#209 id=209 data-nosnippet>209</a> <span class="kw">match </span>val {
<a href=#210 id=210 data-nosnippet>210</a> serde_json::Value::String(s) =&gt; {
<a href=#211 id=211 data-nosnippet>211</a> <span class="macro">assert_eq!</span>(<span class="string">"1970-01-01 08:02:03+0800"</span>, s);
<a href=#212 id=212 data-nosnippet>212</a> }
<a href=#213 id=213 data-nosnippet>213</a> <span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(),
<a href=#214 id=214 data-nosnippet>214</a> }
<a href=#215 id=215 data-nosnippet>215</a> }
<a href=#216 id=216 data-nosnippet>216</a>
<a href=#217 id=217 data-nosnippet>217</a> <span class="attr">#[test]
<a href=#218 id=218 data-nosnippet>218</a> </span><span class="kw">fn </span>test_timestamp_scalar() {
<a href=#219 id=219 data-nosnippet>219</a> <span class="kw">let </span>ts = TimestampSecond::new(<span class="number">123</span>);
<a href=#220 id=220 data-nosnippet>220</a> <span class="macro">assert_eq!</span>(ts, ts.as_scalar_ref());
<a href=#221 id=221 data-nosnippet>221</a> <span class="macro">assert_eq!</span>(ts, ts.to_owned_scalar());
<a href=#222 id=222 data-nosnippet>222</a> <span class="kw">let </span>ts = TimestampMillisecond::new(<span class="number">123</span>);
<a href=#223 id=223 data-nosnippet>223</a> <span class="macro">assert_eq!</span>(ts, ts.as_scalar_ref());
<a href=#224 id=224 data-nosnippet>224</a> <span class="macro">assert_eq!</span>(ts, ts.to_owned_scalar());
<a href=#225 id=225 data-nosnippet>225</a> <span class="kw">let </span>ts = TimestampMicrosecond::new(<span class="number">123</span>);
<a href=#226 id=226 data-nosnippet>226</a> <span class="macro">assert_eq!</span>(ts, ts.as_scalar_ref());
<a href=#227 id=227 data-nosnippet>227</a> <span class="macro">assert_eq!</span>(ts, ts.to_owned_scalar());
<a href=#228 id=228 data-nosnippet>228</a> <span class="kw">let </span>ts = TimestampNanosecond::new(<span class="number">123</span>);
<a href=#229 id=229 data-nosnippet>229</a> <span class="macro">assert_eq!</span>(ts, ts.as_scalar_ref());
<a href=#230 id=230 data-nosnippet>230</a> <span class="macro">assert_eq!</span>(ts, ts.to_owned_scalar());
<a href=#231 id=231 data-nosnippet>231</a> }
<a href=#232 id=232 data-nosnippet>232</a>
<a href=#233 id=233 data-nosnippet>233</a> <span class="attr">#[test]
<a href=#234 id=234 data-nosnippet>234</a> </span><span class="kw">fn </span>test_append_timestamps() {
<a href=#235 id=235 data-nosnippet>235</a> <span class="kw">let </span>cases = [
<a href=#236 id=236 data-nosnippet>236</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(i64::MIN), <span class="prelude-val">Some</span>(-<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">0</span>), <span class="prelude-val">Some</span>(i64::MAX)],
<a href=#237 id=237 data-nosnippet>237</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(-<span class="number">1</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">None</span>],
<a href=#238 id=238 data-nosnippet>238</a> <span class="macro">vec!</span>[<span class="prelude-val">None</span>, <span class="prelude-val">None</span>],
<a href=#239 id=239 data-nosnippet>239</a> <span class="macro">vec!</span>[],
<a href=#240 id=240 data-nosnippet>240</a> ];
<a href=#241 id=241 data-nosnippet>241</a> <span class="kw">for </span>values <span class="kw">in </span>cases {
<a href=#242 id=242 data-nosnippet>242</a> <span class="kw">let </span>arrays: [ArrayRef; <span class="number">4</span>] = [
<a href=#243 id=243 data-nosnippet>243</a> Arc::new(TimestampSecondArray::from(values.clone())),
<a href=#244 id=244 data-nosnippet>244</a> Arc::new(TimestampMillisecondArray::from(values.clone())),
<a href=#245 id=245 data-nosnippet>245</a> Arc::new(TimestampMicrosecondArray::from(values.clone())),
<a href=#246 id=246 data-nosnippet>246</a> Arc::new(TimestampNanosecondArray::from(values.clone())),
<a href=#247 id=247 data-nosnippet>247</a> ];
<a href=#248 id=248 data-nosnippet>248</a> <span class="kw">let </span><span class="kw-2">mut </span>expected = <span class="macro">vec!</span>[<span class="number">42</span>];
<a href=#249 id=249 data-nosnippet>249</a> expected.extend(values.iter().flatten().copied());
<a href=#250 id=250 data-nosnippet>250</a> <span class="kw">for </span>array <span class="kw">in </span>arrays {
<a href=#251 id=251 data-nosnippet>251</a> <span class="kw">for _ in </span><span class="number">0</span>..<span class="number">2 </span>{
<a href=#252 id=252 data-nosnippet>252</a> <span class="kw">let </span>(primitive, <span class="kw">_</span>) = timestamp_array_to_primitive(<span class="kw-2">&amp;</span>array).unwrap();
<a href=#253 id=253 data-nosnippet>253</a> <span class="kw">let </span><span class="kw-2">mut </span>reference = <span class="macro">vec!</span>[<span class="number">42</span>];
<a href=#254 id=254 data-nosnippet>254</a> reference.extend(primitive.iter().flatten());
<a href=#255 id=255 data-nosnippet>255</a>
<a href=#256 id=256 data-nosnippet>256</a> <span class="kw">let </span><span class="kw-2">mut </span>timestamps = <span class="macro">vec!</span>[<span class="number">42</span>];
<a href=#257 id=257 data-nosnippet>257</a> <span class="macro">assert_eq!</span>(append_timestamps(<span class="kw-2">&amp;</span>array, <span class="kw-2">&amp;mut </span>timestamps), <span class="prelude-val">Some</span>(()));
<a href=#258 id=258 data-nosnippet>258</a> <span class="macro">assert_eq!</span>(timestamps, expected);
<a href=#259 id=259 data-nosnippet>259</a> <span class="macro">assert_eq!</span>(timestamps, reference);
<a href=#260 id=260 data-nosnippet>260</a> }
<a href=#261 id=261 data-nosnippet>261</a> }
<a href=#262 id=262 data-nosnippet>262</a> }
<a href=#263 id=263 data-nosnippet>263</a> }
<a href=#264 id=264 data-nosnippet>264</a>
<a href=#265 id=265 data-nosnippet>265</a> <span class="attr">#[test]
<a href=#266 id=266 data-nosnippet>266</a> </span><span class="kw">fn </span>test_append_timestamps_invalid_array_preserves_prefix() {
<a href=#267 id=267 data-nosnippet>267</a> <span class="kw">for </span>values <span class="kw">in </span>[<span class="macro">vec!</span>[], <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">None</span>]] {
<a href=#268 id=268 data-nosnippet>268</a> <span class="kw">let </span>array: ArrayRef = Arc::new(Int64Array::from(values));
<a href=#269 id=269 data-nosnippet>269</a> <span class="kw">let </span><span class="kw-2">mut </span>timestamps = <span class="macro">vec!</span>[<span class="number">42</span>, -<span class="number">1</span>];
<a href=#270 id=270 data-nosnippet>270</a> <span class="macro">assert_eq!</span>(append_timestamps(<span class="kw-2">&amp;</span>array, <span class="kw-2">&amp;mut </span>timestamps), <span class="prelude-val">None</span>);
<a href=#271 id=271 data-nosnippet>271</a> <span class="macro">assert_eq!</span>(timestamps, <span class="macro">vec!</span>[<span class="number">42</span>, -<span class="number">1</span>]);
<a href=#272 id=272 data-nosnippet>272</a> }
<a href=#273 id=273 data-nosnippet>273</a> }
<a href=#274 id=274 data-nosnippet>274</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/type_id.rs`."><title>type_id.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>type_id.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="doccomment">/// Unique identifier for logical data type.
<a href=#16 id=16 data-nosnippet>16</a></span><span class="attr">#[derive(Clone, Copy, Debug, PartialEq, Eq)]
<a href=#17 id=17 data-nosnippet>17</a></span><span class="kw">pub enum </span>LogicalTypeId {
<a href=#18 id=18 data-nosnippet>18</a> Null,
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a> <span class="comment">// Numeric types:
<a href=#21 id=21 data-nosnippet>21</a> </span>Boolean,
<a href=#22 id=22 data-nosnippet>22</a> Int8,
<a href=#23 id=23 data-nosnippet>23</a> Int16,
<a href=#24 id=24 data-nosnippet>24</a> Int32,
<a href=#25 id=25 data-nosnippet>25</a> Int64,
<a href=#26 id=26 data-nosnippet>26</a> UInt8,
<a href=#27 id=27 data-nosnippet>27</a> UInt16,
<a href=#28 id=28 data-nosnippet>28</a> UInt32,
<a href=#29 id=29 data-nosnippet>29</a> UInt64,
<a href=#30 id=30 data-nosnippet>30</a> Float32,
<a href=#31 id=31 data-nosnippet>31</a> Float64,
<a href=#32 id=32 data-nosnippet>32</a>
<a href=#33 id=33 data-nosnippet>33</a> Decimal128,
<a href=#34 id=34 data-nosnippet>34</a>
<a href=#35 id=35 data-nosnippet>35</a> <span class="comment">// String types:
<a href=#36 id=36 data-nosnippet>36</a> </span>String,
<a href=#37 id=37 data-nosnippet>37</a> Binary,
<a href=#38 id=38 data-nosnippet>38</a>
<a href=#39 id=39 data-nosnippet>39</a> <span class="comment">// Date &amp; Time types:
<a href=#40 id=40 data-nosnippet>40</a> </span><span class="doccomment">/// Date representing the elapsed time since UNIX epoch (1970-01-01)
<a href=#41 id=41 data-nosnippet>41</a> /// in days (32 bits).
<a href=#42 id=42 data-nosnippet>42</a> </span>Date,
<a href=#43 id=43 data-nosnippet>43</a>
<a href=#44 id=44 data-nosnippet>44</a> TimestampSecond,
<a href=#45 id=45 data-nosnippet>45</a> TimestampMillisecond,
<a href=#46 id=46 data-nosnippet>46</a> TimestampMicrosecond,
<a href=#47 id=47 data-nosnippet>47</a> TimestampNanosecond,
<a href=#48 id=48 data-nosnippet>48</a> <span class="doccomment">/// A 64-bit time representing the elapsed time since midnight in the unit of `TimeUnit`.
<a href=#49 id=49 data-nosnippet>49</a> </span>TimeSecond,
<a href=#50 id=50 data-nosnippet>50</a> TimeMillisecond,
<a href=#51 id=51 data-nosnippet>51</a> TimeMicrosecond,
<a href=#52 id=52 data-nosnippet>52</a> TimeNanosecond,
<a href=#53 id=53 data-nosnippet>53</a> <span class="doccomment">/// A 64-bit duration representing the elapsed time in either seconds,
<a href=#54 id=54 data-nosnippet>54</a> /// milliseconds, microseconds or nanoseconds.
<a href=#55 id=55 data-nosnippet>55</a> </span>DurationSecond,
<a href=#56 id=56 data-nosnippet>56</a> DurationMillisecond,
<a href=#57 id=57 data-nosnippet>57</a> DurationMicrosecond,
<a href=#58 id=58 data-nosnippet>58</a> DurationNanosecond,
<a href=#59 id=59 data-nosnippet>59</a> <span class="doccomment">/// A 32-bit interval representing the elapsed time in months.
<a href=#60 id=60 data-nosnippet>60</a> </span>IntervalYearMonth,
<a href=#61 id=61 data-nosnippet>61</a> <span class="doccomment">/// A 64-bit interval representing the elapsed time in days and milliseconds.
<a href=#62 id=62 data-nosnippet>62</a> </span>IntervalDayTime,
<a href=#63 id=63 data-nosnippet>63</a> <span class="doccomment">/// A 128-bit interval representing the elapsed time in months, days and nanoseconds.
<a href=#64 id=64 data-nosnippet>64</a> </span>IntervalMonthDayNano,
<a href=#65 id=65 data-nosnippet>65</a>
<a href=#66 id=66 data-nosnippet>66</a> List,
<a href=#67 id=67 data-nosnippet>67</a> Dictionary,
<a href=#68 id=68 data-nosnippet>68</a> Struct,
<a href=#69 id=69 data-nosnippet>69</a>
<a href=#70 id=70 data-nosnippet>70</a> Json,
<a href=#71 id=71 data-nosnippet>71</a>
<a href=#72 id=72 data-nosnippet>72</a> Vector,
<a href=#73 id=73 data-nosnippet>73</a>}
<a href=#74 id=74 data-nosnippet>74</a>
<a href=#75 id=75 data-nosnippet>75</a><span class="kw">impl </span>LogicalTypeId {
<a href=#76 id=76 data-nosnippet>76</a> <span class="doccomment">/// Create ConcreteDataType based on this id. This method is for test only as it
<a href=#77 id=77 data-nosnippet>77</a> /// would lost some info.
<a href=#78 id=78 data-nosnippet>78</a> ///
<a href=#79 id=79 data-nosnippet>79</a> /// # Panics
<a href=#80 id=80 data-nosnippet>80</a> /// Panics if data type is not supported.
<a href=#81 id=81 data-nosnippet>81</a> </span><span class="attr">#[cfg(any(test, feature = <span class="string">"test"</span>))]
<a href=#82 id=82 data-nosnippet>82</a> </span><span class="kw">pub fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw">crate</span>::data_type::ConcreteDataType {
<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">use </span>std::sync::Arc;
<a href=#84 id=84 data-nosnippet>84</a>
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#86 id=86 data-nosnippet>86</a> <span class="kw">use </span><span class="kw">crate</span>::types::StructType;
<a href=#87 id=87 data-nosnippet>87</a>
<a href=#88 id=88 data-nosnippet>88</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#89 id=89 data-nosnippet>89</a> LogicalTypeId::Null =&gt; ConcreteDataType::null_datatype(),
<a href=#90 id=90 data-nosnippet>90</a> LogicalTypeId::Boolean =&gt; ConcreteDataType::boolean_datatype(),
<a href=#91 id=91 data-nosnippet>91</a> LogicalTypeId::Int8 =&gt; ConcreteDataType::int8_datatype(),
<a href=#92 id=92 data-nosnippet>92</a> LogicalTypeId::Int16 =&gt; ConcreteDataType::int16_datatype(),
<a href=#93 id=93 data-nosnippet>93</a> LogicalTypeId::Int32 =&gt; ConcreteDataType::int32_datatype(),
<a href=#94 id=94 data-nosnippet>94</a> LogicalTypeId::Int64 =&gt; ConcreteDataType::int64_datatype(),
<a href=#95 id=95 data-nosnippet>95</a> LogicalTypeId::UInt8 =&gt; ConcreteDataType::uint8_datatype(),
<a href=#96 id=96 data-nosnippet>96</a> LogicalTypeId::UInt16 =&gt; ConcreteDataType::uint16_datatype(),
<a href=#97 id=97 data-nosnippet>97</a> LogicalTypeId::UInt32 =&gt; ConcreteDataType::uint32_datatype(),
<a href=#98 id=98 data-nosnippet>98</a> LogicalTypeId::UInt64 =&gt; ConcreteDataType::uint64_datatype(),
<a href=#99 id=99 data-nosnippet>99</a> LogicalTypeId::Float32 =&gt; ConcreteDataType::float32_datatype(),
<a href=#100 id=100 data-nosnippet>100</a> LogicalTypeId::Float64 =&gt; ConcreteDataType::float64_datatype(),
<a href=#101 id=101 data-nosnippet>101</a> LogicalTypeId::String =&gt; ConcreteDataType::string_datatype(),
<a href=#102 id=102 data-nosnippet>102</a> LogicalTypeId::Binary =&gt; ConcreteDataType::binary_datatype(),
<a href=#103 id=103 data-nosnippet>103</a> LogicalTypeId::Date =&gt; ConcreteDataType::date_datatype(),
<a href=#104 id=104 data-nosnippet>104</a> LogicalTypeId::TimestampSecond =&gt; ConcreteDataType::timestamp_second_datatype(),
<a href=#105 id=105 data-nosnippet>105</a> LogicalTypeId::TimestampMillisecond =&gt; {
<a href=#106 id=106 data-nosnippet>106</a> ConcreteDataType::timestamp_millisecond_datatype()
<a href=#107 id=107 data-nosnippet>107</a> }
<a href=#108 id=108 data-nosnippet>108</a> LogicalTypeId::TimestampMicrosecond =&gt; {
<a href=#109 id=109 data-nosnippet>109</a> ConcreteDataType::timestamp_microsecond_datatype()
<a href=#110 id=110 data-nosnippet>110</a> }
<a href=#111 id=111 data-nosnippet>111</a> LogicalTypeId::TimestampNanosecond =&gt; ConcreteDataType::timestamp_nanosecond_datatype(),
<a href=#112 id=112 data-nosnippet>112</a> LogicalTypeId::List =&gt; {
<a href=#113 id=113 data-nosnippet>113</a> ConcreteDataType::list_datatype(Arc::new(ConcreteDataType::null_datatype()))
<a href=#114 id=114 data-nosnippet>114</a> }
<a href=#115 id=115 data-nosnippet>115</a> LogicalTypeId::Struct =&gt; {
<a href=#116 id=116 data-nosnippet>116</a> ConcreteDataType::struct_datatype(StructType::new(Arc::new(<span class="macro">vec!</span>[])))
<a href=#117 id=117 data-nosnippet>117</a> }
<a href=#118 id=118 data-nosnippet>118</a> LogicalTypeId::Dictionary =&gt; ConcreteDataType::dictionary_datatype(
<a href=#119 id=119 data-nosnippet>119</a> ConcreteDataType::null_datatype(),
<a href=#120 id=120 data-nosnippet>120</a> ConcreteDataType::null_datatype(),
<a href=#121 id=121 data-nosnippet>121</a> ),
<a href=#122 id=122 data-nosnippet>122</a> LogicalTypeId::TimeSecond =&gt; ConcreteDataType::time_second_datatype(),
<a href=#123 id=123 data-nosnippet>123</a> LogicalTypeId::TimeMillisecond =&gt; ConcreteDataType::time_millisecond_datatype(),
<a href=#124 id=124 data-nosnippet>124</a> LogicalTypeId::TimeMicrosecond =&gt; ConcreteDataType::time_microsecond_datatype(),
<a href=#125 id=125 data-nosnippet>125</a> LogicalTypeId::TimeNanosecond =&gt; ConcreteDataType::time_nanosecond_datatype(),
<a href=#126 id=126 data-nosnippet>126</a> LogicalTypeId::IntervalYearMonth =&gt; ConcreteDataType::interval_year_month_datatype(),
<a href=#127 id=127 data-nosnippet>127</a> LogicalTypeId::IntervalDayTime =&gt; ConcreteDataType::interval_day_time_datatype(),
<a href=#128 id=128 data-nosnippet>128</a> LogicalTypeId::IntervalMonthDayNano =&gt; {
<a href=#129 id=129 data-nosnippet>129</a> ConcreteDataType::interval_month_day_nano_datatype()
<a href=#130 id=130 data-nosnippet>130</a> }
<a href=#131 id=131 data-nosnippet>131</a> LogicalTypeId::DurationSecond =&gt; ConcreteDataType::duration_second_datatype(),
<a href=#132 id=132 data-nosnippet>132</a> LogicalTypeId::DurationMillisecond =&gt; ConcreteDataType::duration_millisecond_datatype(),
<a href=#133 id=133 data-nosnippet>133</a> LogicalTypeId::DurationMicrosecond =&gt; ConcreteDataType::duration_microsecond_datatype(),
<a href=#134 id=134 data-nosnippet>134</a> LogicalTypeId::DurationNanosecond =&gt; ConcreteDataType::duration_nanosecond_datatype(),
<a href=#135 id=135 data-nosnippet>135</a> LogicalTypeId::Decimal128 =&gt; ConcreteDataType::decimal128_default_datatype(),
<a href=#136 id=136 data-nosnippet>136</a> LogicalTypeId::Json =&gt; ConcreteDataType::json_datatype(),
<a href=#137 id=137 data-nosnippet>137</a> LogicalTypeId::Vector =&gt; ConcreteDataType::vector_default_datatype(),
<a href=#138 id=138 data-nosnippet>138</a> }
<a href=#139 id=139 data-nosnippet>139</a> }
<a href=#140 id=140 data-nosnippet>140</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types.rs`."><title>types.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>types.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">mod </span>binary_type;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">mod </span>boolean_type;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">pub mod </span>cast;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">mod </span>date_type;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">mod </span>decimal_type;
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">mod </span>dictionary_type;
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">mod </span>duration_type;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">mod </span>interval_type;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">pub mod </span>json_type;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">mod </span>list_type;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">mod </span>null_type;
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">mod </span>primitive_type;
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">mod </span>string_type;
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">mod </span>struct_type;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">mod </span>time_type;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">mod </span>timestamp_type;
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">mod </span>vector_type;
<a href=#32 id=32 data-nosnippet>32</a>
<a href=#33 id=33 data-nosnippet>33</a><span class="kw">pub use </span>binary_type::BinaryType;
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">pub use </span>boolean_type::BooleanType;
<a href=#35 id=35 data-nosnippet>35</a><span class="kw">pub use </span>cast::{cast, cast_with_opt};
<a href=#36 id=36 data-nosnippet>36</a><span class="kw">pub use </span>date_type::DateType;
<a href=#37 id=37 data-nosnippet>37</a><span class="kw">pub use </span>decimal_type::Decimal128Type;
<a href=#38 id=38 data-nosnippet>38</a><span class="kw">pub use </span>dictionary_type::DictionaryType;
<a href=#39 id=39 data-nosnippet>39</a><span class="kw">pub use </span>duration_type::{
<a href=#40 id=40 data-nosnippet>40</a> DurationMicrosecondType, DurationMillisecondType, DurationNanosecondType, DurationSecondType,
<a href=#41 id=41 data-nosnippet>41</a> DurationType,
<a href=#42 id=42 data-nosnippet>42</a>};
<a href=#43 id=43 data-nosnippet>43</a><span class="kw">pub use </span>interval_type::{
<a href=#44 id=44 data-nosnippet>44</a> IntervalDayTimeType, IntervalMonthDayNanoType, IntervalType, IntervalYearMonthType,
<a href=#45 id=45 data-nosnippet>45</a>};
<a href=#46 id=46 data-nosnippet>46</a><span class="kw">pub use </span>json_type::{
<a href=#47 id=47 data-nosnippet>47</a> JSON_TYPE_NAME, JsonFormat, JsonType, jsonb_to_serde_json, jsonb_to_string,
<a href=#48 id=48 data-nosnippet>48</a> parse_string_to_jsonb,
<a href=#49 id=49 data-nosnippet>49</a>};
<a href=#50 id=50 data-nosnippet>50</a><span class="kw">pub use </span>list_type::ListType;
<a href=#51 id=51 data-nosnippet>51</a><span class="kw">pub use </span>null_type::NullType;
<a href=#52 id=52 data-nosnippet>52</a><span class="kw">pub use </span>primitive_type::{
<a href=#53 id=53 data-nosnippet>53</a> Float32Type, Float64Type, Int8Type, Int16Type, Int32Type, Int64Type, LogicalPrimitiveType,
<a href=#54 id=54 data-nosnippet>54</a> OrdPrimitive, UInt8Type, UInt16Type, UInt32Type, UInt64Type, WrapperType,
<a href=#55 id=55 data-nosnippet>55</a>};
<a href=#56 id=56 data-nosnippet>56</a><span class="kw">pub use </span>string_type::{StringSizeType, StringType};
<a href=#57 id=57 data-nosnippet>57</a><span class="kw">pub use </span>struct_type::{StructField, StructType};
<a href=#58 id=58 data-nosnippet>58</a><span class="kw">pub use </span>time_type::{
<a href=#59 id=59 data-nosnippet>59</a> TimeMicrosecondType, TimeMillisecondType, TimeNanosecondType, TimeSecondType, TimeType,
<a href=#60 id=60 data-nosnippet>60</a>};
<a href=#61 id=61 data-nosnippet>61</a><span class="kw">pub use </span>timestamp_type::{
<a href=#62 id=62 data-nosnippet>62</a> TimestampMicrosecondType, TimestampMillisecondType, TimestampNanosecondType,
<a href=#63 id=63 data-nosnippet>63</a> TimestampSecondType, TimestampType,
<a href=#64 id=64 data-nosnippet>64</a>};
<a href=#65 id=65 data-nosnippet>65</a><span class="kw">pub use </span>vector_type::{VectorType, parse_string_to_vector_type_value, vector_type_value_to_string};
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/binary_type.rs`."><title>binary_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>binary_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::sync::Arc;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>arrow::datatypes::DataType <span class="kw">as </span>ArrowDataType;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>common_base::bytes::Bytes;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::data_type::{DataType, DataTypeRef};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::scalars::ScalarVectorBuilder;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::type_id::LogicalTypeId;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{BinaryVectorBuilder, MutableVector};
<a href=#26 id=26 data-nosnippet>26</a>
<a href=#27 id=27 data-nosnippet>27</a><span class="attr">#[derive(
<a href=#28 id=28 data-nosnippet>28</a> Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize, Default,
<a href=#29 id=29 data-nosnippet>29</a>)]
<a href=#30 id=30 data-nosnippet>30</a></span><span class="kw">pub enum </span>BinaryReprType {
<a href=#31 id=31 data-nosnippet>31</a> <span class="attr">#[default]
<a href=#32 id=32 data-nosnippet>32</a> </span>Binary,
<a href=#33 id=33 data-nosnippet>33</a> BinaryView,
<a href=#34 id=34 data-nosnippet>34</a>}
<a href=#35 id=35 data-nosnippet>35</a>
<a href=#36 id=36 data-nosnippet>36</a><span class="attr">#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize)]
<a href=#37 id=37 data-nosnippet>37</a></span><span class="kw">pub struct </span>BinaryType {
<a href=#38 id=38 data-nosnippet>38</a> <span class="attr">#[serde(default)]
<a href=#39 id=39 data-nosnippet>39</a> </span>repr_type: BinaryReprType,
<a href=#40 id=40 data-nosnippet>40</a>}
<a href=#41 id=41 data-nosnippet>41</a>
<a href=#42 id=42 data-nosnippet>42</a><span class="doccomment">/// Custom deserialization to support both old and new formats.
<a href=#43 id=43 data-nosnippet>43</a></span><span class="kw">impl</span>&lt;<span class="lifetime">'de</span>&gt; serde::Deserialize&lt;<span class="lifetime">'de</span>&gt; <span class="kw">for </span>BinaryType {
<a href=#44 id=44 data-nosnippet>44</a> <span class="kw">fn </span>deserialize&lt;D&gt;(deserializer: D) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>, D::Error&gt;
<a href=#45 id=45 data-nosnippet>45</a> <span class="kw">where
<a href=#46 id=46 data-nosnippet>46</a> </span>D: serde::Deserializer&lt;<span class="lifetime">'de</span>&gt;,
<a href=#47 id=47 data-nosnippet>47</a> {
<a href=#48 id=48 data-nosnippet>48</a> <span class="attr">#[derive(serde::Deserialize)]
<a href=#49 id=49 data-nosnippet>49</a> </span><span class="kw">struct </span>Helper {
<a href=#50 id=50 data-nosnippet>50</a> <span class="attr">#[serde(default)]
<a href=#51 id=51 data-nosnippet>51</a> </span>repr_type: BinaryReprType,
<a href=#52 id=52 data-nosnippet>52</a> }
<a href=#53 id=53 data-nosnippet>53</a>
<a href=#54 id=54 data-nosnippet>54</a> <span class="kw">let </span>opt = Option::&lt;Helper&gt;::deserialize(deserializer)<span class="question-mark">?</span>;
<a href=#55 id=55 data-nosnippet>55</a> <span class="prelude-val">Ok</span>(<span class="kw">match </span>opt {
<a href=#56 id=56 data-nosnippet>56</a> <span class="prelude-val">Some</span>(helper) =&gt; <span class="self">Self </span>{
<a href=#57 id=57 data-nosnippet>57</a> repr_type: helper.repr_type,
<a href=#58 id=58 data-nosnippet>58</a> },
<a href=#59 id=59 data-nosnippet>59</a> <span class="prelude-val">None </span>=&gt; <span class="self">Self</span>::default(),
<a href=#60 id=60 data-nosnippet>60</a> })
<a href=#61 id=61 data-nosnippet>61</a> }
<a href=#62 id=62 data-nosnippet>62</a>}
<a href=#63 id=63 data-nosnippet>63</a>
<a href=#64 id=64 data-nosnippet>64</a><span class="kw">impl </span>Default <span class="kw">for </span>BinaryType {
<a href=#65 id=65 data-nosnippet>65</a> <span class="kw">fn </span>default() -&gt; <span class="self">Self </span>{
<a href=#66 id=66 data-nosnippet>66</a> <span class="self">Self </span>{
<a href=#67 id=67 data-nosnippet>67</a> repr_type: BinaryReprType::Binary,
<a href=#68 id=68 data-nosnippet>68</a> }
<a href=#69 id=69 data-nosnippet>69</a> }
<a href=#70 id=70 data-nosnippet>70</a>}
<a href=#71 id=71 data-nosnippet>71</a>
<a href=#72 id=72 data-nosnippet>72</a><span class="kw">impl </span>BinaryType {
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">pub fn </span>binary() -&gt; <span class="self">Self </span>{
<a href=#74 id=74 data-nosnippet>74</a> <span class="self">Self </span>{
<a href=#75 id=75 data-nosnippet>75</a> repr_type: BinaryReprType::Binary,
<a href=#76 id=76 data-nosnippet>76</a> }
<a href=#77 id=77 data-nosnippet>77</a> }
<a href=#78 id=78 data-nosnippet>78</a>
<a href=#79 id=79 data-nosnippet>79</a> <span class="kw">pub fn </span>binary_view() -&gt; <span class="self">Self </span>{
<a href=#80 id=80 data-nosnippet>80</a> <span class="self">Self </span>{
<a href=#81 id=81 data-nosnippet>81</a> repr_type: BinaryReprType::BinaryView,
<a href=#82 id=82 data-nosnippet>82</a> }
<a href=#83 id=83 data-nosnippet>83</a> }
<a href=#84 id=84 data-nosnippet>84</a>
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">pub fn </span>is_view(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#86 id=86 data-nosnippet>86</a> <span class="macro">matches!</span>(<span class="self">self</span>.repr_type, BinaryReprType::BinaryView)
<a href=#87 id=87 data-nosnippet>87</a> }
<a href=#88 id=88 data-nosnippet>88</a>
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">pub fn </span>arc() -&gt; DataTypeRef {
<a href=#90 id=90 data-nosnippet>90</a> Arc::new(<span class="self">Self</span>::default())
<a href=#91 id=91 data-nosnippet>91</a> }
<a href=#92 id=92 data-nosnippet>92</a>
<a href=#93 id=93 data-nosnippet>93</a> <span class="kw">pub fn </span>view_arc() -&gt; DataTypeRef {
<a href=#94 id=94 data-nosnippet>94</a> Arc::new(<span class="self">Self</span>::binary_view())
<a href=#95 id=95 data-nosnippet>95</a> }
<a href=#96 id=96 data-nosnippet>96</a>}
<a href=#97 id=97 data-nosnippet>97</a>
<a href=#98 id=98 data-nosnippet>98</a><span class="kw">impl </span>DataType <span class="kw">for </span>BinaryType {
<a href=#99 id=99 data-nosnippet>99</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#100 id=100 data-nosnippet>100</a> <span class="string">"Binary"</span>.to_string()
<a href=#101 id=101 data-nosnippet>101</a> }
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#104 id=104 data-nosnippet>104</a> LogicalTypeId::Binary
<a href=#105 id=105 data-nosnippet>105</a> }
<a href=#106 id=106 data-nosnippet>106</a>
<a href=#107 id=107 data-nosnippet>107</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#108 id=108 data-nosnippet>108</a> Bytes::default().into()
<a href=#109 id=109 data-nosnippet>109</a> }
<a href=#110 id=110 data-nosnippet>110</a>
<a href=#111 id=111 data-nosnippet>111</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#112 id=112 data-nosnippet>112</a> <span class="kw">match </span><span class="self">self</span>.repr_type {
<a href=#113 id=113 data-nosnippet>113</a> BinaryReprType::Binary =&gt; ArrowDataType::Binary,
<a href=#114 id=114 data-nosnippet>114</a> BinaryReprType::BinaryView =&gt; ArrowDataType::BinaryView,
<a href=#115 id=115 data-nosnippet>115</a> }
<a href=#116 id=116 data-nosnippet>116</a> }
<a href=#117 id=117 data-nosnippet>117</a>
<a href=#118 id=118 data-nosnippet>118</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#119 id=119 data-nosnippet>119</a> <span class="kw">match </span><span class="self">self</span>.repr_type {
<a href=#120 id=120 data-nosnippet>120</a> BinaryReprType::Binary =&gt; Box::new(BinaryVectorBuilder::with_capacity(capacity)),
<a href=#121 id=121 data-nosnippet>121</a> BinaryReprType::BinaryView =&gt; {
<a href=#122 id=122 data-nosnippet>122</a> Box::new(BinaryVectorBuilder::with_view_capacity(capacity))
<a href=#123 id=123 data-nosnippet>123</a> }
<a href=#124 id=124 data-nosnippet>124</a> }
<a href=#125 id=125 data-nosnippet>125</a> }
<a href=#126 id=126 data-nosnippet>126</a>
<a href=#127 id=127 data-nosnippet>127</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#128 id=128 data-nosnippet>128</a> <span class="kw">match </span>from {
<a href=#129 id=129 data-nosnippet>129</a> Value::Binary(v) =&gt; <span class="prelude-val">Some</span>(Value::Binary(v)),
<a href=#130 id=130 data-nosnippet>130</a> Value::String(v) =&gt; <span class="prelude-val">Some</span>(Value::Binary(Bytes::from(v.as_utf8().as_bytes()))),
<a href=#131 id=131 data-nosnippet>131</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#132 id=132 data-nosnippet>132</a> }
<a href=#133 id=133 data-nosnippet>133</a> }
<a href=#134 id=134 data-nosnippet>134</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/boolean_type.rs`."><title>boolean_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>boolean_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::sync::Arc;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>arrow::datatypes::DataType <span class="kw">as </span>ArrowDataType;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>num_traits::Num;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::data_type::{DataType, DataTypeRef};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::scalars::ScalarVectorBuilder;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::type_id::LogicalTypeId;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{BooleanVectorBuilder, MutableVector};
<a href=#26 id=26 data-nosnippet>26</a>
<a href=#27 id=27 data-nosnippet>27</a><span class="attr">#[derive(Debug, Default, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#28 id=28 data-nosnippet>28</a></span><span class="kw">pub struct </span>BooleanType;
<a href=#29 id=29 data-nosnippet>29</a>
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">impl </span>BooleanType {
<a href=#31 id=31 data-nosnippet>31</a> <span class="kw">pub fn </span>arc() -&gt; DataTypeRef {
<a href=#32 id=32 data-nosnippet>32</a> Arc::new(<span class="self">Self</span>)
<a href=#33 id=33 data-nosnippet>33</a> }
<a href=#34 id=34 data-nosnippet>34</a>}
<a href=#35 id=35 data-nosnippet>35</a>
<a href=#36 id=36 data-nosnippet>36</a><span class="kw">impl </span>DataType <span class="kw">for </span>BooleanType {
<a href=#37 id=37 data-nosnippet>37</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#38 id=38 data-nosnippet>38</a> <span class="string">"Boolean"</span>.to_string()
<a href=#39 id=39 data-nosnippet>39</a> }
<a href=#40 id=40 data-nosnippet>40</a>
<a href=#41 id=41 data-nosnippet>41</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#42 id=42 data-nosnippet>42</a> LogicalTypeId::Boolean
<a href=#43 id=43 data-nosnippet>43</a> }
<a href=#44 id=44 data-nosnippet>44</a>
<a href=#45 id=45 data-nosnippet>45</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#46 id=46 data-nosnippet>46</a> bool::default().into()
<a href=#47 id=47 data-nosnippet>47</a> }
<a href=#48 id=48 data-nosnippet>48</a>
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#50 id=50 data-nosnippet>50</a> ArrowDataType::Boolean
<a href=#51 id=51 data-nosnippet>51</a> }
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#54 id=54 data-nosnippet>54</a> Box::new(BooleanVectorBuilder::with_capacity(capacity))
<a href=#55 id=55 data-nosnippet>55</a> }
<a href=#56 id=56 data-nosnippet>56</a>
<a href=#57 id=57 data-nosnippet>57</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#58 id=58 data-nosnippet>58</a> <span class="kw">match </span>from {
<a href=#59 id=59 data-nosnippet>59</a> Value::Boolean(v) =&gt; <span class="prelude-val">Some</span>(Value::Boolean(v)),
<a href=#60 id=60 data-nosnippet>60</a> Value::UInt8(v) =&gt; numeric_to_bool(v),
<a href=#61 id=61 data-nosnippet>61</a> Value::UInt16(v) =&gt; numeric_to_bool(v),
<a href=#62 id=62 data-nosnippet>62</a> Value::UInt32(v) =&gt; numeric_to_bool(v),
<a href=#63 id=63 data-nosnippet>63</a> Value::UInt64(v) =&gt; numeric_to_bool(v),
<a href=#64 id=64 data-nosnippet>64</a> Value::Int8(v) =&gt; numeric_to_bool(v),
<a href=#65 id=65 data-nosnippet>65</a> Value::Int16(v) =&gt; numeric_to_bool(v),
<a href=#66 id=66 data-nosnippet>66</a> Value::Int32(v) =&gt; numeric_to_bool(v),
<a href=#67 id=67 data-nosnippet>67</a> Value::Int64(v) =&gt; numeric_to_bool(v),
<a href=#68 id=68 data-nosnippet>68</a> Value::Float32(v) =&gt; numeric_to_bool(v),
<a href=#69 id=69 data-nosnippet>69</a> Value::Float64(v) =&gt; numeric_to_bool(v),
<a href=#70 id=70 data-nosnippet>70</a> Value::String(v) =&gt; v.as_utf8().parse::&lt;bool&gt;().ok().map(Value::Boolean),
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#72 id=72 data-nosnippet>72</a> }
<a href=#73 id=73 data-nosnippet>73</a> }
<a href=#74 id=74 data-nosnippet>74</a>}
<a href=#75 id=75 data-nosnippet>75</a>
<a href=#76 id=76 data-nosnippet>76</a><span class="kw">pub fn </span>numeric_to_bool&lt;T&gt;(num: T) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt;
<a href=#77 id=77 data-nosnippet>77</a><span class="kw">where
<a href=#78 id=78 data-nosnippet>78</a> </span>T: Num + Default,
<a href=#79 id=79 data-nosnippet>79</a>{
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">if </span>num != T::default() {
<a href=#81 id=81 data-nosnippet>81</a> <span class="prelude-val">Some</span>(Value::Boolean(<span class="bool-val">true</span>))
<a href=#82 id=82 data-nosnippet>82</a> } <span class="kw">else </span>{
<a href=#83 id=83 data-nosnippet>83</a> <span class="prelude-val">Some</span>(Value::Boolean(<span class="bool-val">false</span>))
<a href=#84 id=84 data-nosnippet>84</a> }
<a href=#85 id=85 data-nosnippet>85</a>}
<a href=#86 id=86 data-nosnippet>86</a>
<a href=#87 id=87 data-nosnippet>87</a><span class="kw">pub fn </span>bool_to_numeric&lt;T&gt;(value: bool) -&gt; <span class="prelude-ty">Option</span>&lt;T&gt;
<a href=#88 id=88 data-nosnippet>88</a><span class="kw">where
<a href=#89 id=89 data-nosnippet>89</a> </span>T: Num,
<a href=#90 id=90 data-nosnippet>90</a>{
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">if </span>value {
<a href=#92 id=92 data-nosnippet>92</a> <span class="prelude-val">Some</span>(T::one())
<a href=#93 id=93 data-nosnippet>93</a> } <span class="kw">else </span>{
<a href=#94 id=94 data-nosnippet>94</a> <span class="prelude-val">Some</span>(T::zero())
<a href=#95 id=95 data-nosnippet>95</a> }
<a href=#96 id=96 data-nosnippet>96</a>}
<a href=#97 id=97 data-nosnippet>97</a>
<a href=#98 id=98 data-nosnippet>98</a><span class="attr">#[cfg(test)]
<a href=#99 id=99 data-nosnippet>99</a></span><span class="kw">mod </span>tests {
<a href=#100 id=100 data-nosnippet>100</a>
<a href=#101 id=101 data-nosnippet>101</a> <span class="kw">use </span>ordered_float::OrderedFloat;
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#104 id=104 data-nosnippet>104</a> <span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#105 id=105 data-nosnippet>105</a>
<a href=#106 id=106 data-nosnippet>106</a> <span class="macro">macro_rules!</span> test_cast_to_bool {
<a href=#107 id=107 data-nosnippet>107</a> (<span class="macro-nonterminal">$value</span>: expr, <span class="macro-nonterminal">$expected</span>: expr) =&gt; {
<a href=#108 id=108 data-nosnippet>108</a> <span class="kw">let </span>val = <span class="macro-nonterminal">$value</span>;
<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">let </span>b = ConcreteDataType::boolean_datatype().try_cast(val).unwrap();
<a href=#110 id=110 data-nosnippet>110</a> <span class="macro">assert_eq!</span>(b, Value::Boolean(<span class="macro-nonterminal">$expected</span>));
<a href=#111 id=111 data-nosnippet>111</a> };
<a href=#112 id=112 data-nosnippet>112</a> }
<a href=#113 id=113 data-nosnippet>113</a>
<a href=#114 id=114 data-nosnippet>114</a> <span class="macro">macro_rules!</span> test_cast_from_bool {
<a href=#115 id=115 data-nosnippet>115</a> (<span class="macro-nonterminal">$value</span>: expr, <span class="macro-nonterminal">$datatype</span>: expr, <span class="macro-nonterminal">$expected</span>: expr) =&gt; {
<a href=#116 id=116 data-nosnippet>116</a> <span class="kw">let </span>val = Value::Boolean(<span class="macro-nonterminal">$value</span>);
<a href=#117 id=117 data-nosnippet>117</a> <span class="kw">let </span>b = <span class="macro-nonterminal">$datatype</span>.try_cast(val).unwrap();
<a href=#118 id=118 data-nosnippet>118</a> <span class="macro">assert_eq!</span>(b, <span class="macro-nonterminal">$expected</span>);
<a href=#119 id=119 data-nosnippet>119</a> };
<a href=#120 id=120 data-nosnippet>120</a> }
<a href=#121 id=121 data-nosnippet>121</a>
<a href=#122 id=122 data-nosnippet>122</a> <span class="attr">#[test]
<a href=#123 id=123 data-nosnippet>123</a> </span><span class="kw">fn </span>test_other_type_cast_to_bool() {
<a href=#124 id=124 data-nosnippet>124</a> <span class="comment">// false cases
<a href=#125 id=125 data-nosnippet>125</a> </span><span class="macro">test_cast_to_bool!</span>(Value::UInt8(<span class="number">0</span>), <span class="bool-val">false</span>);
<a href=#126 id=126 data-nosnippet>126</a> <span class="macro">test_cast_to_bool!</span>(Value::UInt16(<span class="number">0</span>), <span class="bool-val">false</span>);
<a href=#127 id=127 data-nosnippet>127</a> <span class="macro">test_cast_to_bool!</span>(Value::UInt32(<span class="number">0</span>), <span class="bool-val">false</span>);
<a href=#128 id=128 data-nosnippet>128</a> <span class="macro">test_cast_to_bool!</span>(Value::UInt64(<span class="number">0</span>), <span class="bool-val">false</span>);
<a href=#129 id=129 data-nosnippet>129</a> <span class="macro">test_cast_to_bool!</span>(Value::Int8(<span class="number">0</span>), <span class="bool-val">false</span>);
<a href=#130 id=130 data-nosnippet>130</a> <span class="macro">test_cast_to_bool!</span>(Value::Int16(<span class="number">0</span>), <span class="bool-val">false</span>);
<a href=#131 id=131 data-nosnippet>131</a> <span class="macro">test_cast_to_bool!</span>(Value::Int32(<span class="number">0</span>), <span class="bool-val">false</span>);
<a href=#132 id=132 data-nosnippet>132</a> <span class="macro">test_cast_to_bool!</span>(Value::Int64(<span class="number">0</span>), <span class="bool-val">false</span>);
<a href=#133 id=133 data-nosnippet>133</a> <span class="macro">test_cast_to_bool!</span>(Value::Float32(OrderedFloat(<span class="number">0.0</span>)), <span class="bool-val">false</span>);
<a href=#134 id=134 data-nosnippet>134</a> <span class="macro">test_cast_to_bool!</span>(Value::Float64(OrderedFloat(<span class="number">0.0</span>)), <span class="bool-val">false</span>);
<a href=#135 id=135 data-nosnippet>135</a> <span class="comment">// true cases
<a href=#136 id=136 data-nosnippet>136</a> </span><span class="macro">test_cast_to_bool!</span>(Value::UInt8(<span class="number">1</span>), <span class="bool-val">true</span>);
<a href=#137 id=137 data-nosnippet>137</a> <span class="macro">test_cast_to_bool!</span>(Value::UInt16(<span class="number">2</span>), <span class="bool-val">true</span>);
<a href=#138 id=138 data-nosnippet>138</a> <span class="macro">test_cast_to_bool!</span>(Value::UInt32(<span class="number">3</span>), <span class="bool-val">true</span>);
<a href=#139 id=139 data-nosnippet>139</a> <span class="macro">test_cast_to_bool!</span>(Value::UInt64(<span class="number">4</span>), <span class="bool-val">true</span>);
<a href=#140 id=140 data-nosnippet>140</a> <span class="macro">test_cast_to_bool!</span>(Value::Int8(<span class="number">5</span>), <span class="bool-val">true</span>);
<a href=#141 id=141 data-nosnippet>141</a> <span class="macro">test_cast_to_bool!</span>(Value::Int16(<span class="number">6</span>), <span class="bool-val">true</span>);
<a href=#142 id=142 data-nosnippet>142</a> <span class="macro">test_cast_to_bool!</span>(Value::Int32(<span class="number">7</span>), <span class="bool-val">true</span>);
<a href=#143 id=143 data-nosnippet>143</a> <span class="macro">test_cast_to_bool!</span>(Value::Int64(<span class="number">8</span>), <span class="bool-val">true</span>);
<a href=#144 id=144 data-nosnippet>144</a> <span class="macro">test_cast_to_bool!</span>(Value::Float32(OrderedFloat(<span class="number">1.0</span>)), <span class="bool-val">true</span>);
<a href=#145 id=145 data-nosnippet>145</a> <span class="macro">test_cast_to_bool!</span>(Value::Float64(OrderedFloat(<span class="number">2.0</span>)), <span class="bool-val">true</span>);
<a href=#146 id=146 data-nosnippet>146</a> }
<a href=#147 id=147 data-nosnippet>147</a>
<a href=#148 id=148 data-nosnippet>148</a> <span class="attr">#[test]
<a href=#149 id=149 data-nosnippet>149</a> </span><span class="kw">fn </span>test_bool_cast_to_other_type() {
<a href=#150 id=150 data-nosnippet>150</a> <span class="comment">// false cases
<a href=#151 id=151 data-nosnippet>151</a> </span><span class="macro">test_cast_from_bool!</span>(<span class="bool-val">false</span>, ConcreteDataType::uint8_datatype(), Value::UInt8(<span class="number">0</span>));
<a href=#152 id=152 data-nosnippet>152</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">false</span>, ConcreteDataType::uint16_datatype(), Value::UInt16(<span class="number">0</span>));
<a href=#153 id=153 data-nosnippet>153</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">false</span>, ConcreteDataType::uint32_datatype(), Value::UInt32(<span class="number">0</span>));
<a href=#154 id=154 data-nosnippet>154</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">false</span>, ConcreteDataType::uint64_datatype(), Value::UInt64(<span class="number">0</span>));
<a href=#155 id=155 data-nosnippet>155</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">false</span>, ConcreteDataType::int8_datatype(), Value::Int8(<span class="number">0</span>));
<a href=#156 id=156 data-nosnippet>156</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">false</span>, ConcreteDataType::int16_datatype(), Value::Int16(<span class="number">0</span>));
<a href=#157 id=157 data-nosnippet>157</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">false</span>, ConcreteDataType::int32_datatype(), Value::Int32(<span class="number">0</span>));
<a href=#158 id=158 data-nosnippet>158</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">false</span>, ConcreteDataType::int64_datatype(), Value::Int64(<span class="number">0</span>));
<a href=#159 id=159 data-nosnippet>159</a> <span class="macro">test_cast_from_bool!</span>(
<a href=#160 id=160 data-nosnippet>160</a> <span class="bool-val">false</span>,
<a href=#161 id=161 data-nosnippet>161</a> ConcreteDataType::float32_datatype(),
<a href=#162 id=162 data-nosnippet>162</a> Value::Float32(OrderedFloat(<span class="number">0.0</span>))
<a href=#163 id=163 data-nosnippet>163</a> );
<a href=#164 id=164 data-nosnippet>164</a> <span class="macro">test_cast_from_bool!</span>(
<a href=#165 id=165 data-nosnippet>165</a> <span class="bool-val">false</span>,
<a href=#166 id=166 data-nosnippet>166</a> ConcreteDataType::float64_datatype(),
<a href=#167 id=167 data-nosnippet>167</a> Value::Float64(OrderedFloat(<span class="number">0.0</span>))
<a href=#168 id=168 data-nosnippet>168</a> );
<a href=#169 id=169 data-nosnippet>169</a> <span class="comment">// true cases
<a href=#170 id=170 data-nosnippet>170</a> </span><span class="macro">test_cast_from_bool!</span>(<span class="bool-val">true</span>, ConcreteDataType::uint8_datatype(), Value::UInt8(<span class="number">1</span>));
<a href=#171 id=171 data-nosnippet>171</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">true</span>, ConcreteDataType::uint16_datatype(), Value::UInt16(<span class="number">1</span>));
<a href=#172 id=172 data-nosnippet>172</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">true</span>, ConcreteDataType::uint32_datatype(), Value::UInt32(<span class="number">1</span>));
<a href=#173 id=173 data-nosnippet>173</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">true</span>, ConcreteDataType::uint64_datatype(), Value::UInt64(<span class="number">1</span>));
<a href=#174 id=174 data-nosnippet>174</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">true</span>, ConcreteDataType::int8_datatype(), Value::Int8(<span class="number">1</span>));
<a href=#175 id=175 data-nosnippet>175</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">true</span>, ConcreteDataType::int16_datatype(), Value::Int16(<span class="number">1</span>));
<a href=#176 id=176 data-nosnippet>176</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">true</span>, ConcreteDataType::int32_datatype(), Value::Int32(<span class="number">1</span>));
<a href=#177 id=177 data-nosnippet>177</a> <span class="macro">test_cast_from_bool!</span>(<span class="bool-val">true</span>, ConcreteDataType::int64_datatype(), Value::Int64(<span class="number">1</span>));
<a href=#178 id=178 data-nosnippet>178</a> <span class="macro">test_cast_from_bool!</span>(
<a href=#179 id=179 data-nosnippet>179</a> <span class="bool-val">true</span>,
<a href=#180 id=180 data-nosnippet>180</a> ConcreteDataType::float32_datatype(),
<a href=#181 id=181 data-nosnippet>181</a> Value::Float32(OrderedFloat(<span class="number">1.0</span>))
<a href=#182 id=182 data-nosnippet>182</a> );
<a href=#183 id=183 data-nosnippet>183</a> <span class="macro">test_cast_from_bool!</span>(
<a href=#184 id=184 data-nosnippet>184</a> <span class="bool-val">true</span>,
<a href=#185 id=185 data-nosnippet>185</a> ConcreteDataType::float64_datatype(),
<a href=#186 id=186 data-nosnippet>186</a> Value::Float64(OrderedFloat(<span class="number">1.0</span>))
<a href=#187 id=187 data-nosnippet>187</a> );
<a href=#188 id=188 data-nosnippet>188</a> }
<a href=#189 id=189 data-nosnippet>189</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/cast.rs`."><title>cast.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>cast.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span><span class="kw">crate</span>::data_type::{ConcreteDataType, DataType};
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, Error, <span class="prelude-ty">Result</span>};
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span><span class="kw">crate</span>::types::TimeType;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span><span class="kw">crate</span>::vectors::Helper;
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="doccomment">/// Used to cast the value to dest ConcreteDataType temporarily.
<a href=#22 id=22 data-nosnippet>22</a>/// To keep the same behavior as arrow-rs.
<a href=#23 id=23 data-nosnippet>23</a></span><span class="kw">pub fn </span>cast(src_value: Value, dest_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;Value&gt; {
<a href=#24 id=24 data-nosnippet>24</a> <span class="kw">if </span>src_value == Value::Null {
<a href=#25 id=25 data-nosnippet>25</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(Value::Null);
<a href=#26 id=26 data-nosnippet>26</a> }
<a href=#27 id=27 data-nosnippet>27</a> <span class="kw">let </span>src_type = src_value.data_type();
<a href=#28 id=28 data-nosnippet>28</a> <span class="kw">let </span>scalar_value = src_value.try_to_scalar_value(<span class="kw-2">&amp;</span>src_type)<span class="question-mark">?</span>;
<a href=#29 id=29 data-nosnippet>29</a> <span class="kw">let </span>new_value = Helper::try_from_scalar_value(scalar_value, <span class="number">1</span>, <span class="prelude-val">None</span>)<span class="question-mark">?
<a href=#30 id=30 data-nosnippet>30</a> </span>.cast(dest_type)<span class="question-mark">?
<a href=#31 id=31 data-nosnippet>31</a> </span>.get(<span class="number">0</span>);
<a href=#32 id=32 data-nosnippet>32</a> <span class="prelude-val">Ok</span>(new_value)
<a href=#33 id=33 data-nosnippet>33</a>}
<a href=#34 id=34 data-nosnippet>34</a>
<a href=#35 id=35 data-nosnippet>35</a><span class="doccomment">/// Cast options for cast functions.
<a href=#36 id=36 data-nosnippet>36</a></span><span class="attr">#[derive(Debug, Default, Clone, PartialEq, Eq, Hash)]
<a href=#37 id=37 data-nosnippet>37</a></span><span class="kw">pub struct </span>CastOption {
<a href=#38 id=38 data-nosnippet>38</a> <span class="doccomment">/// decide how to handle cast failures,
<a href=#39 id=39 data-nosnippet>39</a> /// either return NULL (strict=false) or return ERR (strict=true)
<a href=#40 id=40 data-nosnippet>40</a> </span><span class="kw">pub </span>strict: bool,
<a href=#41 id=41 data-nosnippet>41</a>}
<a href=#42 id=42 data-nosnippet>42</a>
<a href=#43 id=43 data-nosnippet>43</a><span class="kw">impl </span>CastOption {
<a href=#44 id=44 data-nosnippet>44</a> <span class="kw">pub fn </span>is_strict(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#45 id=45 data-nosnippet>45</a> <span class="self">self</span>.strict
<a href=#46 id=46 data-nosnippet>46</a> }
<a href=#47 id=47 data-nosnippet>47</a>}
<a href=#48 id=48 data-nosnippet>48</a>
<a href=#49 id=49 data-nosnippet>49</a><span class="doccomment">/// Cast the value to dest_type with CastOption.
<a href=#50 id=50 data-nosnippet>50</a>///
<a href=#51 id=51 data-nosnippet>51</a>/// # Arguments
<a href=#52 id=52 data-nosnippet>52</a>/// * `src_value` - The value to be casted.
<a href=#53 id=53 data-nosnippet>53</a>/// * `dest_type` - The destination type.
<a href=#54 id=54 data-nosnippet>54</a>/// * `cast_option` - The CastOption.
<a href=#55 id=55 data-nosnippet>55</a>///
<a href=#56 id=56 data-nosnippet>56</a>/// # Returns
<a href=#57 id=57 data-nosnippet>57</a>/// If success, return the casted value.
<a href=#58 id=58 data-nosnippet>58</a>/// If CastOption's strict is true, return an error if the cast fails.
<a href=#59 id=59 data-nosnippet>59</a>/// If CastOption's strict is false, return NULL if the cast fails.
<a href=#60 id=60 data-nosnippet>60</a></span><span class="kw">pub fn </span>cast_with_opt(
<a href=#61 id=61 data-nosnippet>61</a> src_value: Value,
<a href=#62 id=62 data-nosnippet>62</a> dest_type: <span class="kw-2">&amp;</span>ConcreteDataType,
<a href=#63 id=63 data-nosnippet>63</a> cast_option: <span class="kw-2">&amp;</span>CastOption,
<a href=#64 id=64 data-nosnippet>64</a>) -&gt; <span class="prelude-ty">Result</span>&lt;Value&gt; {
<a href=#65 id=65 data-nosnippet>65</a> <span class="kw">if </span>!can_cast_type(<span class="kw-2">&amp;</span>src_value, dest_type) {
<a href=#66 id=66 data-nosnippet>66</a> <span class="kw">if </span>cast_option.strict {
<a href=#67 id=67 data-nosnippet>67</a> <span class="kw">return </span><span class="prelude-val">Err</span>(invalid_type_cast(<span class="kw-2">&amp;</span>src_value, dest_type));
<a href=#68 id=68 data-nosnippet>68</a> } <span class="kw">else </span>{
<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(Value::Null);
<a href=#70 id=70 data-nosnippet>70</a> }
<a href=#71 id=71 data-nosnippet>71</a> }
<a href=#72 id=72 data-nosnippet>72</a> <span class="kw">let </span>new_value = dest_type.try_cast(src_value.clone());
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">match </span>new_value {
<a href=#74 id=74 data-nosnippet>74</a> <span class="prelude-val">Some</span>(v) =&gt; <span class="prelude-val">Ok</span>(v),
<a href=#75 id=75 data-nosnippet>75</a> <span class="prelude-val">None </span>=&gt; {
<a href=#76 id=76 data-nosnippet>76</a> <span class="kw">if </span>cast_option.strict &amp;&amp; !src_value.is_null() {
<a href=#77 id=77 data-nosnippet>77</a> <span class="prelude-val">Err</span>(invalid_type_cast(<span class="kw-2">&amp;</span>src_value, dest_type))
<a href=#78 id=78 data-nosnippet>78</a> } <span class="kw">else </span>{
<a href=#79 id=79 data-nosnippet>79</a> <span class="prelude-val">Ok</span>(Value::Null)
<a href=#80 id=80 data-nosnippet>80</a> }
<a href=#81 id=81 data-nosnippet>81</a> }
<a href=#82 id=82 data-nosnippet>82</a> }
<a href=#83 id=83 data-nosnippet>83</a>}
<a href=#84 id=84 data-nosnippet>84</a>
<a href=#85 id=85 data-nosnippet>85</a><span class="doccomment">/// Return true if the src_value can be casted to dest_type, Otherwise, return false.
<a href=#86 id=86 data-nosnippet>86</a>///
<a href=#87 id=87 data-nosnippet>87</a>/// Notice: this function does not promise that the `cast_with_opt` will succeed,
<a href=#88 id=88 data-nosnippet>88</a>/// it only checks whether the src_value can be casted to dest_type.
<a href=#89 id=89 data-nosnippet>89</a></span><span class="kw">pub fn </span>can_cast_type(src_value: <span class="kw-2">&amp;</span>Value, dest_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; bool {
<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">use </span>ConcreteDataType::<span class="kw-2">*</span>;
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">use </span>TimeType::<span class="kw-2">*</span>;
<a href=#92 id=92 data-nosnippet>92</a> <span class="kw">let </span>src_type = <span class="kw-2">&amp;</span>src_value.data_type();
<a href=#93 id=93 data-nosnippet>93</a>
<a href=#94 id=94 data-nosnippet>94</a> <span class="kw">if </span>src_type == dest_type {
<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">return </span><span class="bool-val">true</span>;
<a href=#96 id=96 data-nosnippet>96</a> }
<a href=#97 id=97 data-nosnippet>97</a>
<a href=#98 id=98 data-nosnippet>98</a> <span class="kw">match </span>(src_type, dest_type) {
<a href=#99 id=99 data-nosnippet>99</a> <span class="comment">// null type cast
<a href=#100 id=100 data-nosnippet>100</a> </span>(<span class="kw">_</span>, Null(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#101 id=101 data-nosnippet>101</a> (Null(<span class="kw">_</span>), <span class="kw">_</span>) =&gt; <span class="bool-val">true</span>,
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a> <span class="comment">// boolean type cast
<a href=#104 id=104 data-nosnippet>104</a> </span>(<span class="kw">_</span>, Boolean(<span class="kw">_</span>)) =&gt; src_type.is_numeric() || src_type.is_string(),
<a href=#105 id=105 data-nosnippet>105</a> (Boolean(<span class="kw">_</span>), <span class="kw">_</span>) =&gt; dest_type.is_numeric() || dest_type.is_string(),
<a href=#106 id=106 data-nosnippet>106</a>
<a href=#107 id=107 data-nosnippet>107</a> <span class="comment">// numeric and string types cast
<a href=#108 id=108 data-nosnippet>108</a> </span>(
<a href=#109 id=109 data-nosnippet>109</a> UInt8(<span class="kw">_</span>) | UInt16(<span class="kw">_</span>) | UInt32(<span class="kw">_</span>) | UInt64(<span class="kw">_</span>) | Int8(<span class="kw">_</span>) | Int16(<span class="kw">_</span>) | Int32(<span class="kw">_</span>) | Int64(<span class="kw">_</span>)
<a href=#110 id=110 data-nosnippet>110</a> | Float32(<span class="kw">_</span>) | Float64(<span class="kw">_</span>) | String(<span class="kw">_</span>),
<a href=#111 id=111 data-nosnippet>111</a> UInt8(<span class="kw">_</span>) | UInt16(<span class="kw">_</span>) | UInt32(<span class="kw">_</span>) | UInt64(<span class="kw">_</span>) | Int8(<span class="kw">_</span>) | Int16(<span class="kw">_</span>) | Int32(<span class="kw">_</span>) | Int64(<span class="kw">_</span>)
<a href=#112 id=112 data-nosnippet>112</a> | Float32(<span class="kw">_</span>) | Float64(<span class="kw">_</span>) | String(<span class="kw">_</span>),
<a href=#113 id=113 data-nosnippet>113</a> ) =&gt; <span class="bool-val">true</span>,
<a href=#114 id=114 data-nosnippet>114</a>
<a href=#115 id=115 data-nosnippet>115</a> (String(<span class="kw">_</span>), Binary(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#116 id=116 data-nosnippet>116</a>
<a href=#117 id=117 data-nosnippet>117</a> <span class="comment">// temporal types cast
<a href=#118 id=118 data-nosnippet>118</a> // Date type
<a href=#119 id=119 data-nosnippet>119</a> </span>(Date(<span class="kw">_</span>), Int32(<span class="kw">_</span>) | Timestamp(<span class="kw">_</span>) | String(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#120 id=120 data-nosnippet>120</a> (Int32(<span class="kw">_</span>) | String(<span class="kw">_</span>) | Timestamp(<span class="kw">_</span>), Date(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#121 id=121 data-nosnippet>121</a> (Date(<span class="kw">_</span>), Date(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#122 id=122 data-nosnippet>122</a> <span class="comment">// Timestamp type
<a href=#123 id=123 data-nosnippet>123</a> </span>(Timestamp(<span class="kw">_</span>), Int64(<span class="kw">_</span>) | String(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#124 id=124 data-nosnippet>124</a> (Int64(<span class="kw">_</span>) | String(<span class="kw">_</span>), Timestamp(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#125 id=125 data-nosnippet>125</a> (Timestamp(<span class="kw">_</span>), Timestamp(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#126 id=126 data-nosnippet>126</a> <span class="comment">// Time type
<a href=#127 id=127 data-nosnippet>127</a> </span>(Time(<span class="kw">_</span>), String(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#128 id=128 data-nosnippet>128</a> (Time(Second(<span class="kw">_</span>)), Int32(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#129 id=129 data-nosnippet>129</a> (Time(Millisecond(<span class="kw">_</span>)), Int32(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#130 id=130 data-nosnippet>130</a> (Time(Microsecond(<span class="kw">_</span>)), Int64(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#131 id=131 data-nosnippet>131</a> (Time(Nanosecond(<span class="kw">_</span>)), Int64(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#132 id=132 data-nosnippet>132</a> (Time(<span class="kw">_</span>), Time(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#133 id=133 data-nosnippet>133</a> <span class="comment">// TODO(QuenKar): interval type cast
<a href=#134 id=134 data-nosnippet>134</a> </span>(Interval(<span class="kw">_</span>), String(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#135 id=135 data-nosnippet>135</a> (Duration(<span class="kw">_</span>), String(<span class="kw">_</span>)) =&gt; <span class="bool-val">true</span>,
<a href=#136 id=136 data-nosnippet>136</a> <span class="comment">// other situations return false
<a href=#137 id=137 data-nosnippet>137</a> </span>(<span class="kw">_</span>, <span class="kw">_</span>) =&gt; <span class="bool-val">false</span>,
<a href=#138 id=138 data-nosnippet>138</a> }
<a href=#139 id=139 data-nosnippet>139</a>}
<a href=#140 id=140 data-nosnippet>140</a>
<a href=#141 id=141 data-nosnippet>141</a><span class="kw">fn </span>invalid_type_cast(src_value: <span class="kw-2">&amp;</span>Value, dest_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; Error {
<a href=#142 id=142 data-nosnippet>142</a> <span class="kw">let </span>src_type = src_value.data_type();
<a href=#143 id=143 data-nosnippet>143</a> <span class="kw">if </span>src_type.is_string() {
<a href=#144 id=144 data-nosnippet>144</a> error::CastTypeSnafu {
<a href=#145 id=145 data-nosnippet>145</a> msg: <span class="macro">format!</span>(<span class="string">"Could not parse string '{}' to {}"</span>, src_value, dest_type),
<a href=#146 id=146 data-nosnippet>146</a> }
<a href=#147 id=147 data-nosnippet>147</a> .build()
<a href=#148 id=148 data-nosnippet>148</a> } <span class="kw">else if </span>src_type.is_numeric() &amp;&amp; dest_type.is_numeric() {
<a href=#149 id=149 data-nosnippet>149</a> error::CastTypeSnafu {
<a href=#150 id=150 data-nosnippet>150</a> msg: <span class="macro">format!</span>(
<a href=#151 id=151 data-nosnippet>151</a> <span class="string">"Type {} with value {} can't be cast because the value is out of range for the destination type {}"</span>,
<a href=#152 id=152 data-nosnippet>152</a> src_type,
<a href=#153 id=153 data-nosnippet>153</a> src_value,
<a href=#154 id=154 data-nosnippet>154</a> dest_type
<a href=#155 id=155 data-nosnippet>155</a> ),
<a href=#156 id=156 data-nosnippet>156</a> }
<a href=#157 id=157 data-nosnippet>157</a> .build()
<a href=#158 id=158 data-nosnippet>158</a> } <span class="kw">else </span>{
<a href=#159 id=159 data-nosnippet>159</a> error::CastTypeSnafu {
<a href=#160 id=160 data-nosnippet>160</a> msg: <span class="macro">format!</span>(
<a href=#161 id=161 data-nosnippet>161</a> <span class="string">"Type {} with value {} can't be cast to the destination type {}"</span>,
<a href=#162 id=162 data-nosnippet>162</a> src_type, src_value, dest_type
<a href=#163 id=163 data-nosnippet>163</a> ),
<a href=#164 id=164 data-nosnippet>164</a> }
<a href=#165 id=165 data-nosnippet>165</a> .build()
<a href=#166 id=166 data-nosnippet>166</a> }
<a href=#167 id=167 data-nosnippet>167</a>}
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a><span class="attr">#[cfg(test)]
<a href=#170 id=170 data-nosnippet>170</a></span><span class="kw">mod </span>tests {
<a href=#171 id=171 data-nosnippet>171</a> <span class="kw">use </span>common_base::bytes::StringBytes;
<a href=#172 id=172 data-nosnippet>172</a> <span class="kw">use </span>common_time::time::Time;
<a href=#173 id=173 data-nosnippet>173</a> <span class="kw">use </span>common_time::timezone::set_default_timezone;
<a href=#174 id=174 data-nosnippet>174</a> <span class="kw">use </span>common_time::{Date, Timestamp};
<a href=#175 id=175 data-nosnippet>175</a> <span class="kw">use </span>ordered_float::OrderedFloat;
<a href=#176 id=176 data-nosnippet>176</a>
<a href=#177 id=177 data-nosnippet>177</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#178 id=178 data-nosnippet>178</a>
<a href=#179 id=179 data-nosnippet>179</a> <span class="macro">macro_rules!</span> test_can_cast {
<a href=#180 id=180 data-nosnippet>180</a> (<span class="macro-nonterminal">$src_value</span>: expr, $(<span class="macro-nonterminal">$dest_type</span>: ident),+) =&gt; {
<a href=#181 id=181 data-nosnippet>181</a> $(
<a href=#182 id=182 data-nosnippet>182</a> <span class="kw">let </span>val = <span class="macro-nonterminal">$src_value</span>;
<a href=#183 id=183 data-nosnippet>183</a> <span class="kw">let </span>t = ConcreteDataType::<span class="macro-nonterminal">$dest_type</span>();
<a href=#184 id=184 data-nosnippet>184</a> <span class="macro">assert_eq!</span>(can_cast_type(<span class="kw-2">&amp;</span>val, <span class="kw-2">&amp;</span>t), <span class="bool-val">true</span>);
<a href=#185 id=185 data-nosnippet>185</a> )*
<a href=#186 id=186 data-nosnippet>186</a> };
<a href=#187 id=187 data-nosnippet>187</a> }
<a href=#188 id=188 data-nosnippet>188</a>
<a href=#189 id=189 data-nosnippet>189</a> <span class="macro">macro_rules!</span> test_primitive_cast {
<a href=#190 id=190 data-nosnippet>190</a> ($(<span class="macro-nonterminal">$value</span>: expr),<span class="kw-2">*</span>) =&gt; {
<a href=#191 id=191 data-nosnippet>191</a> $(
<a href=#192 id=192 data-nosnippet>192</a> <span class="macro">test_can_cast!</span>(
<a href=#193 id=193 data-nosnippet>193</a> <span class="macro-nonterminal">$value</span>,
<a href=#194 id=194 data-nosnippet>194</a> uint8_datatype,
<a href=#195 id=195 data-nosnippet>195</a> uint16_datatype,
<a href=#196 id=196 data-nosnippet>196</a> uint32_datatype,
<a href=#197 id=197 data-nosnippet>197</a> uint64_datatype,
<a href=#198 id=198 data-nosnippet>198</a> int8_datatype,
<a href=#199 id=199 data-nosnippet>199</a> int16_datatype,
<a href=#200 id=200 data-nosnippet>200</a> int32_datatype,
<a href=#201 id=201 data-nosnippet>201</a> int64_datatype,
<a href=#202 id=202 data-nosnippet>202</a> float32_datatype,
<a href=#203 id=203 data-nosnippet>203</a> float64_datatype
<a href=#204 id=204 data-nosnippet>204</a> );
<a href=#205 id=205 data-nosnippet>205</a> )*
<a href=#206 id=206 data-nosnippet>206</a> };
<a href=#207 id=207 data-nosnippet>207</a> }
<a href=#208 id=208 data-nosnippet>208</a>
<a href=#209 id=209 data-nosnippet>209</a> <span class="attr">#[test]
<a href=#210 id=210 data-nosnippet>210</a> </span><span class="kw">fn </span>test_cast_with_opt() {
<a href=#211 id=211 data-nosnippet>211</a> set_default_timezone(<span class="prelude-val">Some</span>(<span class="string">"Asia/Shanghai"</span>)).unwrap();
<a href=#212 id=212 data-nosnippet>212</a> <span class="comment">// non-strict mode
<a href=#213 id=213 data-nosnippet>213</a> </span><span class="kw">let </span>cast_option = CastOption { strict: <span class="bool-val">false </span>};
<a href=#214 id=214 data-nosnippet>214</a> <span class="kw">let </span>src_value = Value::Int8(-<span class="number">1</span>);
<a href=#215 id=215 data-nosnippet>215</a> <span class="kw">let </span>dest_type = ConcreteDataType::uint8_datatype();
<a href=#216 id=216 data-nosnippet>216</a> <span class="kw">let </span>res = cast_with_opt(src_value, <span class="kw-2">&amp;</span>dest_type, <span class="kw-2">&amp;</span>cast_option);
<a href=#217 id=217 data-nosnippet>217</a> <span class="macro">assert!</span>(res.is_ok());
<a href=#218 id=218 data-nosnippet>218</a> <span class="macro">assert_eq!</span>(res.unwrap(), Value::Null);
<a href=#219 id=219 data-nosnippet>219</a>
<a href=#220 id=220 data-nosnippet>220</a> <span class="comment">// strict mode
<a href=#221 id=221 data-nosnippet>221</a> </span><span class="kw">let </span>cast_option = CastOption { strict: <span class="bool-val">true </span>};
<a href=#222 id=222 data-nosnippet>222</a> <span class="kw">let </span>src_value = Value::Int8(-<span class="number">1</span>);
<a href=#223 id=223 data-nosnippet>223</a> <span class="kw">let </span>dest_type = ConcreteDataType::uint8_datatype();
<a href=#224 id=224 data-nosnippet>224</a> <span class="kw">let </span>res = cast_with_opt(src_value, <span class="kw-2">&amp;</span>dest_type, <span class="kw-2">&amp;</span>cast_option);
<a href=#225 id=225 data-nosnippet>225</a> <span class="macro">assert!</span>(res.is_err());
<a href=#226 id=226 data-nosnippet>226</a> <span class="macro">assert_eq!</span>(
<a href=#227 id=227 data-nosnippet>227</a> res.unwrap_err().to_string(),
<a href=#228 id=228 data-nosnippet>228</a> <span class="string">"Type Int8 with value -1 can't be cast because the value is out of range for the destination type UInt8"
<a href=#229 id=229 data-nosnippet>229</a> </span>);
<a href=#230 id=230 data-nosnippet>230</a>
<a href=#231 id=231 data-nosnippet>231</a> <span class="kw">let </span>src_value = Value::String(StringBytes::from(<span class="string">"abc"</span>));
<a href=#232 id=232 data-nosnippet>232</a> <span class="kw">let </span>dest_type = ConcreteDataType::uint8_datatype();
<a href=#233 id=233 data-nosnippet>233</a> <span class="kw">let </span>res = cast_with_opt(src_value, <span class="kw-2">&amp;</span>dest_type, <span class="kw-2">&amp;</span>cast_option);
<a href=#234 id=234 data-nosnippet>234</a> <span class="macro">assert!</span>(res.is_err());
<a href=#235 id=235 data-nosnippet>235</a> <span class="macro">assert_eq!</span>(
<a href=#236 id=236 data-nosnippet>236</a> res.unwrap_err().to_string(),
<a href=#237 id=237 data-nosnippet>237</a> <span class="string">"Could not parse string 'abc' to UInt8"
<a href=#238 id=238 data-nosnippet>238</a> </span>);
<a href=#239 id=239 data-nosnippet>239</a>
<a href=#240 id=240 data-nosnippet>240</a> <span class="kw">let </span>src_value = Value::Timestamp(Timestamp::new_second(<span class="number">10</span>));
<a href=#241 id=241 data-nosnippet>241</a> <span class="kw">let </span>dest_type = ConcreteDataType::int8_datatype();
<a href=#242 id=242 data-nosnippet>242</a> <span class="kw">let </span>res = cast_with_opt(src_value, <span class="kw-2">&amp;</span>dest_type, <span class="kw-2">&amp;</span>cast_option);
<a href=#243 id=243 data-nosnippet>243</a> <span class="macro">assert!</span>(res.is_err());
<a href=#244 id=244 data-nosnippet>244</a> <span class="macro">assert_eq!</span>(
<a href=#245 id=245 data-nosnippet>245</a> res.unwrap_err().to_string(),
<a href=#246 id=246 data-nosnippet>246</a> <span class="string">"Type TimestampSecond with value 1970-01-01 08:00:10+0800 can't be cast to the destination type Int8"
<a href=#247 id=247 data-nosnippet>247</a> </span>);
<a href=#248 id=248 data-nosnippet>248</a> }
<a href=#249 id=249 data-nosnippet>249</a>
<a href=#250 id=250 data-nosnippet>250</a> <span class="attr">#[test]
<a href=#251 id=251 data-nosnippet>251</a> </span><span class="kw">fn </span>test_can_cast_type() {
<a href=#252 id=252 data-nosnippet>252</a> <span class="comment">// numeric cast
<a href=#253 id=253 data-nosnippet>253</a> </span><span class="macro">test_primitive_cast!</span>(
<a href=#254 id=254 data-nosnippet>254</a> Value::UInt8(<span class="number">0</span>),
<a href=#255 id=255 data-nosnippet>255</a> Value::UInt16(<span class="number">1</span>),
<a href=#256 id=256 data-nosnippet>256</a> Value::UInt32(<span class="number">2</span>),
<a href=#257 id=257 data-nosnippet>257</a> Value::UInt64(<span class="number">3</span>),
<a href=#258 id=258 data-nosnippet>258</a> Value::Int8(<span class="number">4</span>),
<a href=#259 id=259 data-nosnippet>259</a> Value::Int16(<span class="number">5</span>),
<a href=#260 id=260 data-nosnippet>260</a> Value::Int32(<span class="number">6</span>),
<a href=#261 id=261 data-nosnippet>261</a> Value::Int64(<span class="number">7</span>),
<a href=#262 id=262 data-nosnippet>262</a> Value::Float32(OrderedFloat(<span class="number">8.0</span>)),
<a href=#263 id=263 data-nosnippet>263</a> Value::Float64(OrderedFloat(<span class="number">9.0</span>)),
<a href=#264 id=264 data-nosnippet>264</a> Value::String(StringBytes::from(<span class="string">"10"</span>))
<a href=#265 id=265 data-nosnippet>265</a> );
<a href=#266 id=266 data-nosnippet>266</a>
<a href=#267 id=267 data-nosnippet>267</a> <span class="comment">// string -&gt; other types
<a href=#268 id=268 data-nosnippet>268</a> </span><span class="macro">test_can_cast!</span>(
<a href=#269 id=269 data-nosnippet>269</a> Value::String(StringBytes::from(<span class="string">"0"</span>)),
<a href=#270 id=270 data-nosnippet>270</a> null_datatype,
<a href=#271 id=271 data-nosnippet>271</a> boolean_datatype,
<a href=#272 id=272 data-nosnippet>272</a> date_datatype,
<a href=#273 id=273 data-nosnippet>273</a> timestamp_second_datatype,
<a href=#274 id=274 data-nosnippet>274</a> binary_datatype
<a href=#275 id=275 data-nosnippet>275</a> );
<a href=#276 id=276 data-nosnippet>276</a>
<a href=#277 id=277 data-nosnippet>277</a> <span class="comment">// date -&gt; other types
<a href=#278 id=278 data-nosnippet>278</a> </span><span class="macro">test_can_cast!</span>(
<a href=#279 id=279 data-nosnippet>279</a> Value::Date(Date::from_str_utc(<span class="string">"2021-01-01"</span>).unwrap()),
<a href=#280 id=280 data-nosnippet>280</a> null_datatype,
<a href=#281 id=281 data-nosnippet>281</a> int32_datatype,
<a href=#282 id=282 data-nosnippet>282</a> timestamp_second_datatype,
<a href=#283 id=283 data-nosnippet>283</a> string_datatype
<a href=#284 id=284 data-nosnippet>284</a> );
<a href=#285 id=285 data-nosnippet>285</a> <span class="comment">// timestamp -&gt; other types
<a href=#286 id=286 data-nosnippet>286</a> </span><span class="macro">test_can_cast!</span>(
<a href=#287 id=287 data-nosnippet>287</a> Value::Timestamp(Timestamp::from_str_utc(<span class="string">"2021-01-01 00:00:00"</span>).unwrap()),
<a href=#288 id=288 data-nosnippet>288</a> null_datatype,
<a href=#289 id=289 data-nosnippet>289</a> int64_datatype,
<a href=#290 id=290 data-nosnippet>290</a> date_datatype,
<a href=#291 id=291 data-nosnippet>291</a> string_datatype
<a href=#292 id=292 data-nosnippet>292</a> );
<a href=#293 id=293 data-nosnippet>293</a>
<a href=#294 id=294 data-nosnippet>294</a> <span class="comment">// time -&gt; other types
<a href=#295 id=295 data-nosnippet>295</a> </span><span class="macro">test_can_cast!</span>(
<a href=#296 id=296 data-nosnippet>296</a> Value::Time(Time::new_second(<span class="number">0</span>)),
<a href=#297 id=297 data-nosnippet>297</a> null_datatype,
<a href=#298 id=298 data-nosnippet>298</a> string_datatype
<a href=#299 id=299 data-nosnippet>299</a> );
<a href=#300 id=300 data-nosnippet>300</a> }
<a href=#301 id=301 data-nosnippet>301</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/date_type.rs`."><title>date_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>date_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>arrow::datatypes::{DataType <span class="kw">as </span>ArrowDataType, Date32Type};
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>common_time::Date;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>snafu::OptionExt;
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span><span class="kw">crate</span>::data_type::{ConcreteDataType, DataType};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, <span class="prelude-ty">Result</span>};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::scalars::ScalarVectorBuilder;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::type_id::LogicalTypeId;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::types::LogicalPrimitiveType;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::value::{Value, ValueRef};
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{DateVector, DateVectorBuilder, MutableVector, Vector};
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="doccomment">/// Data type for Date (YYYY-MM-DD).
<a href=#29 id=29 data-nosnippet>29</a></span><span class="attr">#[derive(Debug, Default, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#30 id=30 data-nosnippet>30</a></span><span class="kw">pub struct </span>DateType;
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">impl </span>DataType <span class="kw">for </span>DateType {
<a href=#33 id=33 data-nosnippet>33</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#34 id=34 data-nosnippet>34</a> <span class="string">"Date"</span>.to_string()
<a href=#35 id=35 data-nosnippet>35</a> }
<a href=#36 id=36 data-nosnippet>36</a>
<a href=#37 id=37 data-nosnippet>37</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#38 id=38 data-nosnippet>38</a> LogicalTypeId::Date
<a href=#39 id=39 data-nosnippet>39</a> }
<a href=#40 id=40 data-nosnippet>40</a>
<a href=#41 id=41 data-nosnippet>41</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#42 id=42 data-nosnippet>42</a> Value::Date(Default::default())
<a href=#43 id=43 data-nosnippet>43</a> }
<a href=#44 id=44 data-nosnippet>44</a>
<a href=#45 id=45 data-nosnippet>45</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#46 id=46 data-nosnippet>46</a> ArrowDataType::Date32
<a href=#47 id=47 data-nosnippet>47</a> }
<a href=#48 id=48 data-nosnippet>48</a>
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#50 id=50 data-nosnippet>50</a> Box::new(DateVectorBuilder::with_capacity(capacity))
<a href=#51 id=51 data-nosnippet>51</a> }
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#54 id=54 data-nosnippet>54</a> <span class="kw">match </span>from {
<a href=#55 id=55 data-nosnippet>55</a> Value::Int32(v) =&gt; <span class="prelude-val">Some</span>(Value::Date(Date::from(v))),
<a href=#56 id=56 data-nosnippet>56</a> Value::String(v) =&gt; Date::from_str_utc(v.as_utf8()).map(Value::Date).ok(),
<a href=#57 id=57 data-nosnippet>57</a> Value::Timestamp(v) =&gt; v.to_chrono_date().map(|date| Value::Date(date.into())),
<a href=#58 id=58 data-nosnippet>58</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#59 id=59 data-nosnippet>59</a> }
<a href=#60 id=60 data-nosnippet>60</a> }
<a href=#61 id=61 data-nosnippet>61</a>}
<a href=#62 id=62 data-nosnippet>62</a>
<a href=#63 id=63 data-nosnippet>63</a><span class="kw">impl </span>LogicalPrimitiveType <span class="kw">for </span>DateType {
<a href=#64 id=64 data-nosnippet>64</a> <span class="kw">type </span>ArrowPrimitive = Date32Type;
<a href=#65 id=65 data-nosnippet>65</a> <span class="kw">type </span>Native = i32;
<a href=#66 id=66 data-nosnippet>66</a> <span class="kw">type </span>Wrapper = Date;
<a href=#67 id=67 data-nosnippet>67</a> <span class="kw">type </span>LargestType = <span class="self">Self</span>;
<a href=#68 id=68 data-nosnippet>68</a>
<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">fn </span>build_data_type() -&gt; ConcreteDataType {
<a href=#70 id=70 data-nosnippet>70</a> ConcreteDataType::date_datatype()
<a href=#71 id=71 data-nosnippet>71</a> }
<a href=#72 id=72 data-nosnippet>72</a>
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">fn </span>type_name() -&gt; <span class="kw-2">&amp;</span><span class="lifetime">'static </span>str {
<a href=#74 id=74 data-nosnippet>74</a> <span class="string">"Date"
<a href=#75 id=75 data-nosnippet>75</a> </span>}
<a href=#76 id=76 data-nosnippet>76</a>
<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">fn </span>cast_vector(vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="kw-2">&amp;</span>DateVector&gt; {
<a href=#78 id=78 data-nosnippet>78</a> vector
<a href=#79 id=79 data-nosnippet>79</a> .as_any()
<a href=#80 id=80 data-nosnippet>80</a> .downcast_ref::&lt;DateVector&gt;()
<a href=#81 id=81 data-nosnippet>81</a> .with_context(|| error::CastTypeSnafu {
<a href=#82 id=82 data-nosnippet>82</a> msg: <span class="macro">format!</span>(<span class="string">"Failed to cast {} to DateVector"</span>, vector.vector_type_name(),),
<a href=#83 id=83 data-nosnippet>83</a> })
<a href=#84 id=84 data-nosnippet>84</a> }
<a href=#85 id=85 data-nosnippet>85</a>
<a href=#86 id=86 data-nosnippet>86</a> <span class="kw">fn </span>cast_value_ref(value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="prelude-ty">Option</span>&lt;Date&gt;&gt; {
<a href=#87 id=87 data-nosnippet>87</a> <span class="kw">match </span>value {
<a href=#88 id=88 data-nosnippet>88</a> ValueRef::Null =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
<a href=#89 id=89 data-nosnippet>89</a> ValueRef::Date(v) =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="kw-2">*</span>v)),
<a href=#90 id=90 data-nosnippet>90</a> other =&gt; error::CastTypeSnafu {
<a href=#91 id=91 data-nosnippet>91</a> msg: <span class="macro">format!</span>(<span class="string">"Failed to cast value {other:?} to Date"</span>),
<a href=#92 id=92 data-nosnippet>92</a> }
<a href=#93 id=93 data-nosnippet>93</a> .fail(),
<a href=#94 id=94 data-nosnippet>94</a> }
<a href=#95 id=95 data-nosnippet>95</a> }
<a href=#96 id=96 data-nosnippet>96</a>}
<a href=#97 id=97 data-nosnippet>97</a>
<a href=#98 id=98 data-nosnippet>98</a><span class="attr">#[cfg(test)]
<a href=#99 id=99 data-nosnippet>99</a></span><span class="kw">mod </span>tests {
<a href=#100 id=100 data-nosnippet>100</a> <span class="kw">use </span>common_base::bytes::StringBytes;
<a href=#101 id=101 data-nosnippet>101</a> <span class="kw">use </span>common_time::Timestamp;
<a href=#102 id=102 data-nosnippet>102</a> <span class="kw">use </span>common_time::timezone::set_default_timezone;
<a href=#103 id=103 data-nosnippet>103</a>
<a href=#104 id=104 data-nosnippet>104</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#105 id=105 data-nosnippet>105</a>
<a href=#106 id=106 data-nosnippet>106</a> <span class="comment">// $TZ doesn't take effort
<a href=#107 id=107 data-nosnippet>107</a> </span><span class="attr">#[test]
<a href=#108 id=108 data-nosnippet>108</a> </span><span class="kw">fn </span>test_date_cast() {
<a href=#109 id=109 data-nosnippet>109</a> set_default_timezone(<span class="prelude-val">Some</span>(<span class="string">"Asia/Shanghai"</span>)).unwrap();
<a href=#110 id=110 data-nosnippet>110</a> <span class="comment">// timestamp -&gt; date
<a href=#111 id=111 data-nosnippet>111</a> </span><span class="kw">let </span>ts = Value::Timestamp(Timestamp::from_str_utc(<span class="string">"2000-01-01 08:00:01"</span>).unwrap());
<a href=#112 id=112 data-nosnippet>112</a> <span class="kw">let </span>date = ConcreteDataType::date_datatype().try_cast(ts).unwrap();
<a href=#113 id=113 data-nosnippet>113</a> <span class="macro">assert_eq!</span>(date, Value::Date(Date::from_str_utc(<span class="string">"2000-01-01"</span>).unwrap()));
<a href=#114 id=114 data-nosnippet>114</a>
<a href=#115 id=115 data-nosnippet>115</a> <span class="comment">// this case bind with Zulu timezone.
<a href=#116 id=116 data-nosnippet>116</a> </span><span class="kw">let </span>ts = Value::Timestamp(Timestamp::from_str_utc(<span class="string">"2000-01-02 07:59:59"</span>).unwrap());
<a href=#117 id=117 data-nosnippet>117</a> <span class="kw">let </span>date = ConcreteDataType::date_datatype().try_cast(ts).unwrap();
<a href=#118 id=118 data-nosnippet>118</a> <span class="macro">assert_eq!</span>(date, Value::Date(Date::from_str_utc(<span class="string">"2000-01-02"</span>).unwrap()));
<a href=#119 id=119 data-nosnippet>119</a>
<a href=#120 id=120 data-nosnippet>120</a> <span class="comment">// while this case is offsetted to Asia/Shanghai.
<a href=#121 id=121 data-nosnippet>121</a> </span><span class="kw">let </span>ts = Value::Timestamp(Timestamp::from_str_utc(<span class="string">"2000-01-02 07:59:59+08:00"</span>).unwrap());
<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">let </span>date = ConcreteDataType::date_datatype().try_cast(ts).unwrap();
<a href=#123 id=123 data-nosnippet>123</a> <span class="macro">assert_eq!</span>(date, Value::Date(Date::from_str_utc(<span class="string">"2000-01-01"</span>).unwrap()));
<a href=#124 id=124 data-nosnippet>124</a>
<a href=#125 id=125 data-nosnippet>125</a> <span class="comment">// Int32 -&gt; date
<a href=#126 id=126 data-nosnippet>126</a> </span><span class="kw">let </span>val = Value::Int32(<span class="number">0</span>);
<a href=#127 id=127 data-nosnippet>127</a> <span class="kw">let </span>date = ConcreteDataType::date_datatype().try_cast(val).unwrap();
<a href=#128 id=128 data-nosnippet>128</a> <span class="macro">assert_eq!</span>(date, Value::Date(Date::from_str_utc(<span class="string">"1970-01-01"</span>).unwrap()));
<a href=#129 id=129 data-nosnippet>129</a>
<a href=#130 id=130 data-nosnippet>130</a> <span class="kw">let </span>val = Value::Int32(<span class="number">19614</span>);
<a href=#131 id=131 data-nosnippet>131</a> <span class="kw">let </span>date = ConcreteDataType::date_datatype().try_cast(val).unwrap();
<a href=#132 id=132 data-nosnippet>132</a> <span class="macro">assert_eq!</span>(date, Value::Date(Date::from_str_utc(<span class="string">"2023-09-14"</span>).unwrap()));
<a href=#133 id=133 data-nosnippet>133</a>
<a href=#134 id=134 data-nosnippet>134</a> <span class="comment">// String -&gt; date
<a href=#135 id=135 data-nosnippet>135</a> </span><span class="kw">let </span>s = Value::String(StringBytes::from(<span class="string">"1970-02-12"</span>));
<a href=#136 id=136 data-nosnippet>136</a> <span class="kw">let </span>date = ConcreteDataType::date_datatype().try_cast(s).unwrap();
<a href=#137 id=137 data-nosnippet>137</a> <span class="macro">assert_eq!</span>(date, Value::Date(Date::from_str_utc(<span class="string">"1970-02-12"</span>).unwrap()));
<a href=#138 id=138 data-nosnippet>138</a> }
<a href=#139 id=139 data-nosnippet>139</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/decimal_type.rs`."><title>decimal_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>decimal_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>arrow_schema::DataType <span class="kw">as </span>ArrowDataType;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>common_decimal::Decimal128;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>common_decimal::decimal128::DECIMAL128_MAX_PRECISION;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span><span class="kw">crate</span>::prelude::{DataType, ScalarVectorBuilder};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::type_id::LogicalTypeId;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{Decimal128VectorBuilder, MutableVector};
<a href=#24 id=24 data-nosnippet>24</a>
<a href=#25 id=25 data-nosnippet>25</a><span class="doccomment">/// Decimal type with precision and scale information.
<a href=#26 id=26 data-nosnippet>26</a></span><span class="attr">#[derive(
<a href=#27 id=27 data-nosnippet>27</a> Debug, Default, Copy, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize,
<a href=#28 id=28 data-nosnippet>28</a>)]
<a href=#29 id=29 data-nosnippet>29</a></span><span class="kw">pub struct </span>Decimal128Type {
<a href=#30 id=30 data-nosnippet>30</a> precision: u8,
<a href=#31 id=31 data-nosnippet>31</a> scale: i8,
<a href=#32 id=32 data-nosnippet>32</a>}
<a href=#33 id=33 data-nosnippet>33</a>
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">impl </span>Decimal128Type {
<a href=#35 id=35 data-nosnippet>35</a> <span class="kw">pub fn </span>new(precision: u8, scale: i8) -&gt; <span class="self">Self </span>{
<a href=#36 id=36 data-nosnippet>36</a> <span class="comment">// assert precision and scale is valid
<a href=#37 id=37 data-nosnippet>37</a> </span><span class="macro">assert!</span>(
<a href=#38 id=38 data-nosnippet>38</a> precision &gt; <span class="number">0 </span>&amp;&amp; precision &lt;= DECIMAL128_MAX_PRECISION,
<a href=#39 id=39 data-nosnippet>39</a> <span class="string">"precision should be in [1, {}]"</span>,
<a href=#40 id=40 data-nosnippet>40</a> DECIMAL128_MAX_PRECISION
<a href=#41 id=41 data-nosnippet>41</a> );
<a href=#42 id=42 data-nosnippet>42</a> <span class="macro">assert!</span>(
<a href=#43 id=43 data-nosnippet>43</a> scale &gt;= <span class="number">0 </span>&amp;&amp; scale &lt;= precision <span class="kw">as </span>i8,
<a href=#44 id=44 data-nosnippet>44</a> <span class="string">"scale should be in [0, precision]"
<a href=#45 id=45 data-nosnippet>45</a> </span>);
<a href=#46 id=46 data-nosnippet>46</a> Decimal128Type { precision, scale }
<a href=#47 id=47 data-nosnippet>47</a> }
<a href=#48 id=48 data-nosnippet>48</a>
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">pub fn </span>precision(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; u8 {
<a href=#50 id=50 data-nosnippet>50</a> <span class="self">self</span>.precision
<a href=#51 id=51 data-nosnippet>51</a> }
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a> <span class="kw">pub fn </span>scale(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; i8 {
<a href=#54 id=54 data-nosnippet>54</a> <span class="self">self</span>.scale
<a href=#55 id=55 data-nosnippet>55</a> }
<a href=#56 id=56 data-nosnippet>56</a>}
<a href=#57 id=57 data-nosnippet>57</a>
<a href=#58 id=58 data-nosnippet>58</a><span class="kw">impl </span>DataType <span class="kw">for </span>Decimal128Type {
<a href=#59 id=59 data-nosnippet>59</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#60 id=60 data-nosnippet>60</a> <span class="macro">format!</span>(<span class="string">"Decimal({}, {})"</span>, <span class="self">self</span>.precision, <span class="self">self</span>.scale)
<a href=#61 id=61 data-nosnippet>61</a> }
<a href=#62 id=62 data-nosnippet>62</a>
<a href=#63 id=63 data-nosnippet>63</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#64 id=64 data-nosnippet>64</a> LogicalTypeId::Decimal128
<a href=#65 id=65 data-nosnippet>65</a> }
<a href=#66 id=66 data-nosnippet>66</a>
<a href=#67 id=67 data-nosnippet>67</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#68 id=68 data-nosnippet>68</a> Value::Decimal128(Decimal128::default())
<a href=#69 id=69 data-nosnippet>69</a> }
<a href=#70 id=70 data-nosnippet>70</a>
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#72 id=72 data-nosnippet>72</a> ArrowDataType::Decimal128(<span class="self">self</span>.precision, <span class="self">self</span>.scale)
<a href=#73 id=73 data-nosnippet>73</a> }
<a href=#74 id=74 data-nosnippet>74</a>
<a href=#75 id=75 data-nosnippet>75</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#76 id=76 data-nosnippet>76</a> Box::new(
<a href=#77 id=77 data-nosnippet>77</a> Decimal128VectorBuilder::with_capacity(capacity)
<a href=#78 id=78 data-nosnippet>78</a> .with_precision_and_scale(<span class="self">self</span>.precision, <span class="self">self</span>.scale)
<a href=#79 id=79 data-nosnippet>79</a> <span class="comment">// safe to unwrap because we have validated the precision and scale in new()
<a href=#80 id=80 data-nosnippet>80</a> </span>.unwrap(),
<a href=#81 id=81 data-nosnippet>81</a> )
<a href=#82 id=82 data-nosnippet>82</a> }
<a href=#83 id=83 data-nosnippet>83</a>
<a href=#84 id=84 data-nosnippet>84</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, val: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">match </span>val {
<a href=#86 id=86 data-nosnippet>86</a> Value::Null =&gt; <span class="prelude-val">Some</span>(Value::Null),
<a href=#87 id=87 data-nosnippet>87</a> Value::Decimal128(<span class="kw">_</span>) =&gt; <span class="prelude-val">Some</span>(val),
<a href=#88 id=88 data-nosnippet>88</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#89 id=89 data-nosnippet>89</a> }
<a href=#90 id=90 data-nosnippet>90</a> }
<a href=#91 id=91 data-nosnippet>91</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/dictionary_type.rs`."><title>dictionary_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>dictionary_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>arrow::datatypes::DataType <span class="kw">as </span>ArrowDataType;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span><span class="kw">crate</span>::data_type::{ConcreteDataType, DataType};
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span><span class="kw">crate</span>::type_id::LogicalTypeId;
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{MutableVector, StringDictionaryVectorBuilder};
<a href=#22 id=22 data-nosnippet>22</a>
<a href=#23 id=23 data-nosnippet>23</a><span class="doccomment">/// Used to represent the Dictionary datatype.
<a href=#24 id=24 data-nosnippet>24</a></span><span class="attr">#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#25 id=25 data-nosnippet>25</a></span><span class="kw">pub struct </span>DictionaryType {
<a href=#26 id=26 data-nosnippet>26</a> <span class="comment">// Use Box to avoid recursive dependency, as enum ConcreteDataType depends on DictionaryType.
<a href=#27 id=27 data-nosnippet>27</a> </span><span class="doccomment">/// The type of Dictionary key.
<a href=#28 id=28 data-nosnippet>28</a> </span>key_type: Box&lt;ConcreteDataType&gt;,
<a href=#29 id=29 data-nosnippet>29</a> <span class="doccomment">/// The type of Dictionary value.
<a href=#30 id=30 data-nosnippet>30</a> </span>value_type: Box&lt;ConcreteDataType&gt;,
<a href=#31 id=31 data-nosnippet>31</a>}
<a href=#32 id=32 data-nosnippet>32</a>
<a href=#33 id=33 data-nosnippet>33</a><span class="kw">impl </span>Default <span class="kw">for </span>DictionaryType {
<a href=#34 id=34 data-nosnippet>34</a> <span class="kw">fn </span>default() -&gt; <span class="self">Self </span>{
<a href=#35 id=35 data-nosnippet>35</a> DictionaryType::new(
<a href=#36 id=36 data-nosnippet>36</a> ConcreteDataType::null_datatype(),
<a href=#37 id=37 data-nosnippet>37</a> ConcreteDataType::null_datatype(),
<a href=#38 id=38 data-nosnippet>38</a> )
<a href=#39 id=39 data-nosnippet>39</a> }
<a href=#40 id=40 data-nosnippet>40</a>}
<a href=#41 id=41 data-nosnippet>41</a>
<a href=#42 id=42 data-nosnippet>42</a><span class="kw">impl </span>DictionaryType {
<a href=#43 id=43 data-nosnippet>43</a> <span class="doccomment">/// Create a new `DictionaryType` whose item's data type is `item_type`.
<a href=#44 id=44 data-nosnippet>44</a> </span><span class="kw">pub fn </span>new(key_type: ConcreteDataType, value_type: ConcreteDataType) -&gt; <span class="self">Self </span>{
<a href=#45 id=45 data-nosnippet>45</a> DictionaryType {
<a href=#46 id=46 data-nosnippet>46</a> key_type: Box::new(key_type),
<a href=#47 id=47 data-nosnippet>47</a> value_type: Box::new(value_type),
<a href=#48 id=48 data-nosnippet>48</a> }
<a href=#49 id=49 data-nosnippet>49</a> }
<a href=#50 id=50 data-nosnippet>50</a>
<a href=#51 id=51 data-nosnippet>51</a> <span class="doccomment">/// Returns the key data type.
<a href=#52 id=52 data-nosnippet>52</a> </span><span class="attr">#[inline]
<a href=#53 id=53 data-nosnippet>53</a> </span><span class="kw">pub fn </span>key_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>ConcreteDataType {
<a href=#54 id=54 data-nosnippet>54</a> <span class="kw-2">&amp;</span><span class="self">self</span>.key_type
<a href=#55 id=55 data-nosnippet>55</a> }
<a href=#56 id=56 data-nosnippet>56</a>
<a href=#57 id=57 data-nosnippet>57</a> <span class="doccomment">/// Returns the value data type.
<a href=#58 id=58 data-nosnippet>58</a> </span><span class="attr">#[inline]
<a href=#59 id=59 data-nosnippet>59</a> </span><span class="kw">pub fn </span>value_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>ConcreteDataType {
<a href=#60 id=60 data-nosnippet>60</a> <span class="kw-2">&amp;</span><span class="self">self</span>.value_type
<a href=#61 id=61 data-nosnippet>61</a> }
<a href=#62 id=62 data-nosnippet>62</a>}
<a href=#63 id=63 data-nosnippet>63</a>
<a href=#64 id=64 data-nosnippet>64</a><span class="kw">impl </span>DataType <span class="kw">for </span>DictionaryType {
<a href=#65 id=65 data-nosnippet>65</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#66 id=66 data-nosnippet>66</a> <span class="macro">format!</span>(
<a href=#67 id=67 data-nosnippet>67</a> <span class="string">"Dictionary&lt;{}, {}&gt;"</span>,
<a href=#68 id=68 data-nosnippet>68</a> <span class="self">self</span>.key_type.name(),
<a href=#69 id=69 data-nosnippet>69</a> <span class="self">self</span>.value_type.name()
<a href=#70 id=70 data-nosnippet>70</a> )
<a href=#71 id=71 data-nosnippet>71</a> }
<a href=#72 id=72 data-nosnippet>72</a>
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#74 id=74 data-nosnippet>74</a> LogicalTypeId::Dictionary
<a href=#75 id=75 data-nosnippet>75</a> }
<a href=#76 id=76 data-nosnippet>76</a>
<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#78 id=78 data-nosnippet>78</a> <span class="macro">unimplemented!</span>()
<a href=#79 id=79 data-nosnippet>79</a> }
<a href=#80 id=80 data-nosnippet>80</a>
<a href=#81 id=81 data-nosnippet>81</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#82 id=82 data-nosnippet>82</a> ArrowDataType::Dictionary(
<a href=#83 id=83 data-nosnippet>83</a> Box::new(<span class="self">self</span>.key_type.as_arrow_type()),
<a href=#84 id=84 data-nosnippet>84</a> Box::new(<span class="self">self</span>.value_type.as_arrow_type()),
<a href=#85 id=85 data-nosnippet>85</a> )
<a href=#86 id=86 data-nosnippet>86</a> }
<a href=#87 id=87 data-nosnippet>87</a>
<a href=#88 id=88 data-nosnippet>88</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">if </span><span class="self">self</span>.key_type.as_ref() == <span class="kw-2">&amp;</span>ConcreteDataType::uint32_datatype()
<a href=#90 id=90 data-nosnippet>90</a> &amp;&amp; <span class="self">self</span>.value_type.as_ref() == <span class="kw-2">&amp;</span>ConcreteDataType::string_datatype()
<a href=#91 id=91 data-nosnippet>91</a> {
<a href=#92 id=92 data-nosnippet>92</a> Box::new(StringDictionaryVectorBuilder::with_capacity(capacity))
<a href=#93 id=93 data-nosnippet>93</a> } <span class="kw">else </span>{
<a href=#94 id=94 data-nosnippet>94</a> <span class="macro">unimplemented!</span>()
<a href=#95 id=95 data-nosnippet>95</a> }
<a href=#96 id=96 data-nosnippet>96</a> }
<a href=#97 id=97 data-nosnippet>97</a>
<a href=#98 id=98 data-nosnippet>98</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="kw">_</span>: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#99 id=99 data-nosnippet>99</a> <span class="prelude-val">None
<a href=#100 id=100 data-nosnippet>100</a> </span>}
<a href=#101 id=101 data-nosnippet>101</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/duration_type.rs`."><title>duration_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>duration_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>arrow::datatypes::{
<a href=#16 id=16 data-nosnippet>16</a> DataType <span class="kw">as </span>ArrowDataType, DurationMicrosecondType <span class="kw">as </span>ArrowDurationMicrosecondType,
<a href=#17 id=17 data-nosnippet>17</a> DurationMillisecondType <span class="kw">as </span>ArrowDurationMillisecondType,
<a href=#18 id=18 data-nosnippet>18</a> DurationNanosecondType <span class="kw">as </span>ArrowDurationNanosecondType,
<a href=#19 id=19 data-nosnippet>19</a> DurationSecondType <span class="kw">as </span>ArrowDurationSecondType, TimeUnit <span class="kw">as </span>ArrowTimeUnit,
<a href=#20 id=20 data-nosnippet>20</a>};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>common_time::duration::Duration;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>common_time::timestamp::TimeUnit;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>enum_dispatch::enum_dispatch;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>paste::paste;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span>snafu::OptionExt;
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span><span class="kw">crate</span>::data_type::DataType;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::duration::{
<a href=#30 id=30 data-nosnippet>30</a> DurationMicrosecond, DurationMillisecond, DurationNanosecond, DurationSecond,
<a href=#31 id=31 data-nosnippet>31</a>};
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span><span class="kw">crate</span>::error;
<a href=#33 id=33 data-nosnippet>33</a><span class="kw">use </span><span class="kw">crate</span>::prelude::{
<a href=#34 id=34 data-nosnippet>34</a> ConcreteDataType, LogicalTypeId, MutableVector, ScalarVectorBuilder, Value, ValueRef, Vector,
<a href=#35 id=35 data-nosnippet>35</a>};
<a href=#36 id=36 data-nosnippet>36</a><span class="kw">use </span><span class="kw">crate</span>::types::LogicalPrimitiveType;
<a href=#37 id=37 data-nosnippet>37</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#38 id=38 data-nosnippet>38</a> DurationMicrosecondVector, DurationMicrosecondVectorBuilder, DurationMillisecondVector,
<a href=#39 id=39 data-nosnippet>39</a> DurationMillisecondVectorBuilder, DurationNanosecondVector, DurationNanosecondVectorBuilder,
<a href=#40 id=40 data-nosnippet>40</a> DurationSecondVector, DurationSecondVectorBuilder, PrimitiveVector,
<a href=#41 id=41 data-nosnippet>41</a>};
<a href=#42 id=42 data-nosnippet>42</a>
<a href=#43 id=43 data-nosnippet>43</a><span class="attr">#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#44 id=44 data-nosnippet>44</a>#[enum_dispatch(DataType)]
<a href=#45 id=45 data-nosnippet>45</a></span><span class="kw">pub enum </span>DurationType {
<a href=#46 id=46 data-nosnippet>46</a> Second(DurationSecondType),
<a href=#47 id=47 data-nosnippet>47</a> Millisecond(DurationMillisecondType),
<a href=#48 id=48 data-nosnippet>48</a> Microsecond(DurationMicrosecondType),
<a href=#49 id=49 data-nosnippet>49</a> Nanosecond(DurationNanosecondType),
<a href=#50 id=50 data-nosnippet>50</a>}
<a href=#51 id=51 data-nosnippet>51</a>
<a href=#52 id=52 data-nosnippet>52</a><span class="kw">impl </span>DurationType {
<a href=#53 id=53 data-nosnippet>53</a> <span class="doccomment">/// Creates time type from `TimeUnit`.
<a href=#54 id=54 data-nosnippet>54</a> </span><span class="kw">pub fn </span>from_unit(unit: TimeUnit) -&gt; <span class="self">Self </span>{
<a href=#55 id=55 data-nosnippet>55</a> <span class="kw">match </span>unit {
<a href=#56 id=56 data-nosnippet>56</a> TimeUnit::Second =&gt; <span class="self">Self</span>::Second(DurationSecondType),
<a href=#57 id=57 data-nosnippet>57</a> TimeUnit::Millisecond =&gt; <span class="self">Self</span>::Millisecond(DurationMillisecondType),
<a href=#58 id=58 data-nosnippet>58</a> TimeUnit::Microsecond =&gt; <span class="self">Self</span>::Microsecond(DurationMicrosecondType),
<a href=#59 id=59 data-nosnippet>59</a> TimeUnit::Nanosecond =&gt; <span class="self">Self</span>::Nanosecond(DurationNanosecondType),
<a href=#60 id=60 data-nosnippet>60</a> }
<a href=#61 id=61 data-nosnippet>61</a> }
<a href=#62 id=62 data-nosnippet>62</a>
<a href=#63 id=63 data-nosnippet>63</a> <span class="doccomment">/// Returns the [`TimeUnit`] of this type.
<a href=#64 id=64 data-nosnippet>64</a> </span><span class="kw">pub fn </span>unit(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; TimeUnit {
<a href=#65 id=65 data-nosnippet>65</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#66 id=66 data-nosnippet>66</a> DurationType::Second(<span class="kw">_</span>) =&gt; TimeUnit::Second,
<a href=#67 id=67 data-nosnippet>67</a> DurationType::Millisecond(<span class="kw">_</span>) =&gt; TimeUnit::Millisecond,
<a href=#68 id=68 data-nosnippet>68</a> DurationType::Microsecond(<span class="kw">_</span>) =&gt; TimeUnit::Microsecond,
<a href=#69 id=69 data-nosnippet>69</a> DurationType::Nanosecond(<span class="kw">_</span>) =&gt; TimeUnit::Nanosecond,
<a href=#70 id=70 data-nosnippet>70</a> }
<a href=#71 id=71 data-nosnippet>71</a> }
<a href=#72 id=72 data-nosnippet>72</a>}
<a href=#73 id=73 data-nosnippet>73</a>
<a href=#74 id=74 data-nosnippet>74</a><span class="macro">macro_rules!</span> impl_data_type_for_duration {
<a href=#75 id=75 data-nosnippet>75</a> (<span class="macro-nonterminal">$unit</span>: ident) =&gt; {
<a href=#76 id=76 data-nosnippet>76</a> <span class="macro">paste!</span> {
<a href=#77 id=77 data-nosnippet>77</a> <span class="attr">#[derive(Debug, Default, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#78 id=78 data-nosnippet>78</a> </span><span class="kw">pub struct </span>[&lt;Duration <span class="macro-nonterminal">$unit </span>Type&gt;];
<a href=#79 id=79 data-nosnippet>79</a>
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">impl </span>DataType <span class="kw">for </span>[&lt;Duration <span class="macro-nonterminal">$unit </span>Type&gt;] {
<a href=#81 id=81 data-nosnippet>81</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#82 id=82 data-nosnippet>82</a> <span class="macro">stringify!</span>([&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;]).to_string()
<a href=#83 id=83 data-nosnippet>83</a> }
<a href=#84 id=84 data-nosnippet>84</a>
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#86 id=86 data-nosnippet>86</a> LogicalTypeId::[&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;]
<a href=#87 id=87 data-nosnippet>87</a> }
<a href=#88 id=88 data-nosnippet>88</a>
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#90 id=90 data-nosnippet>90</a> Value::Duration(Duration::new(<span class="number">0</span>, TimeUnit::<span class="macro-nonterminal">$unit</span>))
<a href=#91 id=91 data-nosnippet>91</a> }
<a href=#92 id=92 data-nosnippet>92</a>
<a href=#93 id=93 data-nosnippet>93</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#94 id=94 data-nosnippet>94</a> ArrowDataType::Duration(ArrowTimeUnit::<span class="macro-nonterminal">$unit</span>)
<a href=#95 id=95 data-nosnippet>95</a> }
<a href=#96 id=96 data-nosnippet>96</a>
<a href=#97 id=97 data-nosnippet>97</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#98 id=98 data-nosnippet>98</a> Box::new([&lt;Duration <span class="macro-nonterminal">$unit </span>Vector Builder&gt;]::with_capacity(capacity))
<a href=#99 id=99 data-nosnippet>99</a> }
<a href=#100 id=100 data-nosnippet>100</a>
<a href=#101 id=101 data-nosnippet>101</a>
<a href=#102 id=102 data-nosnippet>102</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="kw">_</span>: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#103 id=103 data-nosnippet>103</a> <span class="comment">// TODO(QuenKar): Implement casting for duration types.
<a href=#104 id=104 data-nosnippet>104</a> </span><span class="prelude-val">None
<a href=#105 id=105 data-nosnippet>105</a> </span>}
<a href=#106 id=106 data-nosnippet>106</a> }
<a href=#107 id=107 data-nosnippet>107</a>
<a href=#108 id=108 data-nosnippet>108</a> <span class="kw">impl </span>LogicalPrimitiveType <span class="kw">for </span>[&lt;Duration <span class="macro-nonterminal">$unit </span>Type&gt;] {
<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">type </span>ArrowPrimitive = [&lt;Arrow Duration <span class="macro-nonterminal">$unit </span>Type&gt;];
<a href=#110 id=110 data-nosnippet>110</a> <span class="kw">type </span>Native = i64;
<a href=#111 id=111 data-nosnippet>111</a> <span class="kw">type </span>Wrapper = [&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;];
<a href=#112 id=112 data-nosnippet>112</a> <span class="kw">type </span>LargestType = <span class="self">Self</span>;
<a href=#113 id=113 data-nosnippet>113</a>
<a href=#114 id=114 data-nosnippet>114</a> <span class="kw">fn </span>build_data_type() -&gt; ConcreteDataType {
<a href=#115 id=115 data-nosnippet>115</a> ConcreteDataType::Duration(DurationType::<span class="macro-nonterminal">$unit</span>(
<a href=#116 id=116 data-nosnippet>116</a> [&lt;Duration <span class="macro-nonterminal">$unit </span>Type&gt;]::default(),
<a href=#117 id=117 data-nosnippet>117</a> ))
<a href=#118 id=118 data-nosnippet>118</a> }
<a href=#119 id=119 data-nosnippet>119</a>
<a href=#120 id=120 data-nosnippet>120</a> <span class="kw">fn </span>type_name() -&gt; <span class="kw-2">&amp;</span><span class="lifetime">'static </span>str {
<a href=#121 id=121 data-nosnippet>121</a> <span class="macro">stringify!</span>([&lt;Duration <span class="macro-nonterminal">$unit </span>Type&gt;])
<a href=#122 id=122 data-nosnippet>122</a> }
<a href=#123 id=123 data-nosnippet>123</a>
<a href=#124 id=124 data-nosnippet>124</a> <span class="kw">fn </span>cast_vector(vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector) -&gt; <span class="kw">crate</span>::Result&lt;<span class="kw-2">&amp;</span>PrimitiveVector&lt;<span class="self">Self</span>&gt;&gt; {
<a href=#125 id=125 data-nosnippet>125</a> vector
<a href=#126 id=126 data-nosnippet>126</a> .as_any()
<a href=#127 id=127 data-nosnippet>127</a> .downcast_ref::&lt;[&lt;Duration <span class="macro-nonterminal">$unit </span>Vector&gt;]&gt;()
<a href=#128 id=128 data-nosnippet>128</a> .with_context(|| error::CastTypeSnafu {
<a href=#129 id=129 data-nosnippet>129</a> msg: <span class="macro">format!</span>(
<a href=#130 id=130 data-nosnippet>130</a> <span class="string">"Failed to cast {} to {}"</span>,
<a href=#131 id=131 data-nosnippet>131</a> vector.vector_type_name(), <span class="macro">stringify!</span>([&lt;Duration <span class="macro-nonterminal">$unit </span>Vector&gt;])
<a href=#132 id=132 data-nosnippet>132</a> ),
<a href=#133 id=133 data-nosnippet>133</a> })
<a href=#134 id=134 data-nosnippet>134</a> }
<a href=#135 id=135 data-nosnippet>135</a>
<a href=#136 id=136 data-nosnippet>136</a> <span class="kw">fn </span>cast_value_ref(value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="kw">crate</span>::Result&lt;<span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::Wrapper&gt;&gt; {
<a href=#137 id=137 data-nosnippet>137</a> <span class="kw">match </span>value {
<a href=#138 id=138 data-nosnippet>138</a> ValueRef::Null =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
<a href=#139 id=139 data-nosnippet>139</a> ValueRef::Duration(t) =&gt; <span class="kw">match </span>t.unit() {
<a href=#140 id=140 data-nosnippet>140</a> TimeUnit::<span class="macro-nonterminal">$unit </span>=&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>([&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;](<span class="kw-2">*</span>t))),
<a href=#141 id=141 data-nosnippet>141</a> other =&gt; error::CastTypeSnafu {
<a href=#142 id=142 data-nosnippet>142</a> msg: <span class="macro">format!</span>(
<a href=#143 id=143 data-nosnippet>143</a> <span class="string">"Failed to cast Duration value with different unit {:?} to {}"</span>,
<a href=#144 id=144 data-nosnippet>144</a> other, <span class="macro">stringify!</span>([&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;])
<a href=#145 id=145 data-nosnippet>145</a> ),
<a href=#146 id=146 data-nosnippet>146</a> }
<a href=#147 id=147 data-nosnippet>147</a> .fail(),
<a href=#148 id=148 data-nosnippet>148</a> },
<a href=#149 id=149 data-nosnippet>149</a> other =&gt; error::CastTypeSnafu {
<a href=#150 id=150 data-nosnippet>150</a> msg: <span class="macro">format!</span>(<span class="string">"Failed to cast value {:?} to {}"</span>, other, <span class="macro">stringify!</span>([&lt;Duration <span class="macro-nonterminal">$unit</span>&gt;])),
<a href=#151 id=151 data-nosnippet>151</a> }
<a href=#152 id=152 data-nosnippet>152</a> .fail(),
<a href=#153 id=153 data-nosnippet>153</a> }
<a href=#154 id=154 data-nosnippet>154</a> }
<a href=#155 id=155 data-nosnippet>155</a> }
<a href=#156 id=156 data-nosnippet>156</a> }
<a href=#157 id=157 data-nosnippet>157</a> }
<a href=#158 id=158 data-nosnippet>158</a>}
<a href=#159 id=159 data-nosnippet>159</a>
<a href=#160 id=160 data-nosnippet>160</a><span class="macro">impl_data_type_for_duration!</span>(Second);
<a href=#161 id=161 data-nosnippet>161</a><span class="macro">impl_data_type_for_duration!</span>(Millisecond);
<a href=#162 id=162 data-nosnippet>162</a><span class="macro">impl_data_type_for_duration!</span>(Microsecond);
<a href=#163 id=163 data-nosnippet>163</a><span class="macro">impl_data_type_for_duration!</span>(Nanosecond);
<a href=#164 id=164 data-nosnippet>164</a>
<a href=#165 id=165 data-nosnippet>165</a><span class="attr">#[cfg(test)]
<a href=#166 id=166 data-nosnippet>166</a></span><span class="kw">mod </span>tests {
<a href=#167 id=167 data-nosnippet>167</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a> <span class="attr">#[test]
<a href=#170 id=170 data-nosnippet>170</a> </span><span class="kw">fn </span>test_duration_type_unit() {
<a href=#171 id=171 data-nosnippet>171</a> <span class="macro">assert_eq!</span>(
<a href=#172 id=172 data-nosnippet>172</a> TimeUnit::Second,
<a href=#173 id=173 data-nosnippet>173</a> DurationType::Second(DurationSecondType).unit()
<a href=#174 id=174 data-nosnippet>174</a> );
<a href=#175 id=175 data-nosnippet>175</a>
<a href=#176 id=176 data-nosnippet>176</a> <span class="macro">assert_eq!</span>(
<a href=#177 id=177 data-nosnippet>177</a> TimeUnit::Millisecond,
<a href=#178 id=178 data-nosnippet>178</a> DurationType::Millisecond(DurationMillisecondType).unit()
<a href=#179 id=179 data-nosnippet>179</a> );
<a href=#180 id=180 data-nosnippet>180</a>
<a href=#181 id=181 data-nosnippet>181</a> <span class="macro">assert_eq!</span>(
<a href=#182 id=182 data-nosnippet>182</a> TimeUnit::Microsecond,
<a href=#183 id=183 data-nosnippet>183</a> DurationType::Microsecond(DurationMicrosecondType).unit()
<a href=#184 id=184 data-nosnippet>184</a> );
<a href=#185 id=185 data-nosnippet>185</a>
<a href=#186 id=186 data-nosnippet>186</a> <span class="macro">assert_eq!</span>(
<a href=#187 id=187 data-nosnippet>187</a> TimeUnit::Nanosecond,
<a href=#188 id=188 data-nosnippet>188</a> DurationType::Nanosecond(DurationNanosecondType).unit()
<a href=#189 id=189 data-nosnippet>189</a> );
<a href=#190 id=190 data-nosnippet>190</a> }
<a href=#191 id=191 data-nosnippet>191</a>
<a href=#192 id=192 data-nosnippet>192</a> <span class="attr">#[test]
<a href=#193 id=193 data-nosnippet>193</a> </span><span class="kw">fn </span>test_from_unit() {
<a href=#194 id=194 data-nosnippet>194</a> <span class="macro">assert_eq!</span>(
<a href=#195 id=195 data-nosnippet>195</a> DurationType::Second(DurationSecondType),
<a href=#196 id=196 data-nosnippet>196</a> DurationType::from_unit(TimeUnit::Second)
<a href=#197 id=197 data-nosnippet>197</a> );
<a href=#198 id=198 data-nosnippet>198</a>
<a href=#199 id=199 data-nosnippet>199</a> <span class="macro">assert_eq!</span>(
<a href=#200 id=200 data-nosnippet>200</a> DurationType::Millisecond(DurationMillisecondType),
<a href=#201 id=201 data-nosnippet>201</a> DurationType::from_unit(TimeUnit::Millisecond)
<a href=#202 id=202 data-nosnippet>202</a> );
<a href=#203 id=203 data-nosnippet>203</a>
<a href=#204 id=204 data-nosnippet>204</a> <span class="macro">assert_eq!</span>(
<a href=#205 id=205 data-nosnippet>205</a> DurationType::Microsecond(DurationMicrosecondType),
<a href=#206 id=206 data-nosnippet>206</a> DurationType::from_unit(TimeUnit::Microsecond)
<a href=#207 id=207 data-nosnippet>207</a> );
<a href=#208 id=208 data-nosnippet>208</a>
<a href=#209 id=209 data-nosnippet>209</a> <span class="macro">assert_eq!</span>(
<a href=#210 id=210 data-nosnippet>210</a> DurationType::Nanosecond(DurationNanosecondType),
<a href=#211 id=211 data-nosnippet>211</a> DurationType::from_unit(TimeUnit::Nanosecond)
<a href=#212 id=212 data-nosnippet>212</a> );
<a href=#213 id=213 data-nosnippet>213</a> }
<a href=#214 id=214 data-nosnippet>214</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/interval_type.rs`."><title>interval_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>interval_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>arrow::datatypes::{
<a href=#16 id=16 data-nosnippet>16</a> DataType <span class="kw">as </span>ArrowDataType, IntervalDayTime <span class="kw">as </span>ArrowIntervalDayTime,
<a href=#17 id=17 data-nosnippet>17</a> IntervalDayTimeType <span class="kw">as </span>ArrowIntervalDayTimeType,
<a href=#18 id=18 data-nosnippet>18</a> IntervalMonthDayNano <span class="kw">as </span>ArrowIntervalMonthDayNano,
<a href=#19 id=19 data-nosnippet>19</a> IntervalMonthDayNanoType <span class="kw">as </span>ArrowIntervalMonthDayNanoType, IntervalUnit <span class="kw">as </span>ArrowIntervalUnit,
<a href=#20 id=20 data-nosnippet>20</a> IntervalYearMonthType <span class="kw">as </span>ArrowIntervalYearMonthType,
<a href=#21 id=21 data-nosnippet>21</a>};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>common_time::interval::{
<a href=#23 id=23 data-nosnippet>23</a> IntervalDayTime, IntervalMonthDayNano, IntervalUnit, IntervalYearMonth,
<a href=#24 id=24 data-nosnippet>24</a>};
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span>enum_dispatch::enum_dispatch;
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span>paste::paste;
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span>snafu::OptionExt;
<a href=#29 id=29 data-nosnippet>29</a>
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">use </span><span class="kw">crate</span>::error;
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span><span class="kw">crate</span>::prelude::{
<a href=#33 id=33 data-nosnippet>33</a> DataType, LogicalTypeId, MutableVector, ScalarVectorBuilder, Value, ValueRef, Vector,
<a href=#34 id=34 data-nosnippet>34</a>};
<a href=#35 id=35 data-nosnippet>35</a><span class="kw">use </span><span class="kw">crate</span>::types::LogicalPrimitiveType;
<a href=#36 id=36 data-nosnippet>36</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#37 id=37 data-nosnippet>37</a> IntervalDayTimeVector, IntervalDayTimeVectorBuilder, IntervalMonthDayNanoVector,
<a href=#38 id=38 data-nosnippet>38</a> IntervalMonthDayNanoVectorBuilder, IntervalYearMonthVector, IntervalYearMonthVectorBuilder,
<a href=#39 id=39 data-nosnippet>39</a> PrimitiveVector,
<a href=#40 id=40 data-nosnippet>40</a>};
<a href=#41 id=41 data-nosnippet>41</a>
<a href=#42 id=42 data-nosnippet>42</a><span class="doccomment">/// The "calendar" interval is a type of time interval that does not
<a href=#43 id=43 data-nosnippet>43</a>/// have a precise duration without taking into account a specific
<a href=#44 id=44 data-nosnippet>44</a>/// base timestamp.
<a href=#45 id=45 data-nosnippet>45</a></span><span class="attr">#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#46 id=46 data-nosnippet>46</a>#[enum_dispatch(DataType)]
<a href=#47 id=47 data-nosnippet>47</a></span><span class="kw">pub enum </span>IntervalType {
<a href=#48 id=48 data-nosnippet>48</a> YearMonth(IntervalYearMonthType),
<a href=#49 id=49 data-nosnippet>49</a> DayTime(IntervalDayTimeType),
<a href=#50 id=50 data-nosnippet>50</a> MonthDayNano(IntervalMonthDayNanoType),
<a href=#51 id=51 data-nosnippet>51</a>}
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a><span class="kw">impl </span>IntervalType {
<a href=#54 id=54 data-nosnippet>54</a> <span class="doccomment">/// Returns the unit of the interval.
<a href=#55 id=55 data-nosnippet>55</a> </span><span class="kw">pub fn </span>unit(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; IntervalUnit {
<a href=#56 id=56 data-nosnippet>56</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#57 id=57 data-nosnippet>57</a> IntervalType::YearMonth(<span class="kw">_</span>) =&gt; IntervalUnit::YearMonth,
<a href=#58 id=58 data-nosnippet>58</a> IntervalType::DayTime(<span class="kw">_</span>) =&gt; IntervalUnit::DayTime,
<a href=#59 id=59 data-nosnippet>59</a> IntervalType::MonthDayNano(<span class="kw">_</span>) =&gt; IntervalUnit::MonthDayNano,
<a href=#60 id=60 data-nosnippet>60</a> }
<a href=#61 id=61 data-nosnippet>61</a> }
<a href=#62 id=62 data-nosnippet>62</a>}
<a href=#63 id=63 data-nosnippet>63</a>
<a href=#64 id=64 data-nosnippet>64</a><span class="macro">macro_rules!</span> impl_data_type_for_interval {
<a href=#65 id=65 data-nosnippet>65</a> (<span class="macro-nonterminal">$unit</span>: ident, <span class="macro-nonterminal">$type</span>: ty) =&gt; {
<a href=#66 id=66 data-nosnippet>66</a> <span class="macro">paste!</span> {
<a href=#67 id=67 data-nosnippet>67</a> <span class="attr">#[derive(Debug, Default, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#68 id=68 data-nosnippet>68</a> </span><span class="kw">pub struct </span>[&lt;Interval <span class="macro-nonterminal">$unit </span>Type&gt;];
<a href=#69 id=69 data-nosnippet>69</a>
<a href=#70 id=70 data-nosnippet>70</a> <span class="kw">impl </span>DataType <span class="kw">for </span>[&lt;Interval <span class="macro-nonterminal">$unit </span>Type&gt;] {
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#72 id=72 data-nosnippet>72</a> <span class="macro">stringify!</span>([&lt;Interval <span class="macro-nonterminal">$unit</span>&gt;]).to_string()
<a href=#73 id=73 data-nosnippet>73</a> }
<a href=#74 id=74 data-nosnippet>74</a>
<a href=#75 id=75 data-nosnippet>75</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#76 id=76 data-nosnippet>76</a> LogicalTypeId::[&lt;Interval <span class="macro-nonterminal">$unit</span>&gt;]
<a href=#77 id=77 data-nosnippet>77</a> }
<a href=#78 id=78 data-nosnippet>78</a>
<a href=#79 id=79 data-nosnippet>79</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#80 id=80 data-nosnippet>80</a> Value::[&lt;Interval <span class="macro-nonterminal">$unit</span>&gt;]([&lt;Interval <span class="macro-nonterminal">$unit</span>&gt;]::default())
<a href=#81 id=81 data-nosnippet>81</a> }
<a href=#82 id=82 data-nosnippet>82</a>
<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#84 id=84 data-nosnippet>84</a> ArrowDataType::Interval(ArrowIntervalUnit::<span class="macro-nonterminal">$unit</span>)
<a href=#85 id=85 data-nosnippet>85</a> }
<a href=#86 id=86 data-nosnippet>86</a>
<a href=#87 id=87 data-nosnippet>87</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#88 id=88 data-nosnippet>88</a> Box::new([&lt;Interval <span class="macro-nonterminal">$unit </span>Vector Builder&gt;]::with_capacity(capacity))
<a href=#89 id=89 data-nosnippet>89</a> }
<a href=#90 id=90 data-nosnippet>90</a>
<a href=#91 id=91 data-nosnippet>91</a>
<a href=#92 id=92 data-nosnippet>92</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, <span class="kw">_</span>: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#93 id=93 data-nosnippet>93</a> <span class="comment">// TODO(QuenKar): Implement casting for interval types.
<a href=#94 id=94 data-nosnippet>94</a> </span><span class="prelude-val">None
<a href=#95 id=95 data-nosnippet>95</a> </span>}
<a href=#96 id=96 data-nosnippet>96</a> }
<a href=#97 id=97 data-nosnippet>97</a>
<a href=#98 id=98 data-nosnippet>98</a> <span class="kw">impl </span>LogicalPrimitiveType <span class="kw">for </span>[&lt;Interval <span class="macro-nonterminal">$unit </span>Type&gt;] {
<a href=#99 id=99 data-nosnippet>99</a> <span class="kw">type </span>ArrowPrimitive = [&lt;Arrow Interval <span class="macro-nonterminal">$unit </span>Type&gt;];
<a href=#100 id=100 data-nosnippet>100</a> <span class="kw">type </span>Native = <span class="macro-nonterminal">$type</span>;
<a href=#101 id=101 data-nosnippet>101</a> <span class="kw">type </span>Wrapper = [&lt;Interval <span class="macro-nonterminal">$unit</span>&gt;];
<a href=#102 id=102 data-nosnippet>102</a> <span class="kw">type </span>LargestType = <span class="self">Self</span>;
<a href=#103 id=103 data-nosnippet>103</a>
<a href=#104 id=104 data-nosnippet>104</a> <span class="kw">fn </span>build_data_type() -&gt; ConcreteDataType {
<a href=#105 id=105 data-nosnippet>105</a> ConcreteDataType::Interval(IntervalType::<span class="macro-nonterminal">$unit</span>(
<a href=#106 id=106 data-nosnippet>106</a> [&lt;Interval <span class="macro-nonterminal">$unit </span>Type&gt;]::default(),
<a href=#107 id=107 data-nosnippet>107</a> ))
<a href=#108 id=108 data-nosnippet>108</a> }
<a href=#109 id=109 data-nosnippet>109</a>
<a href=#110 id=110 data-nosnippet>110</a> <span class="kw">fn </span>type_name() -&gt; <span class="kw-2">&amp;</span><span class="lifetime">'static </span>str {
<a href=#111 id=111 data-nosnippet>111</a> <span class="macro">stringify!</span>([&lt;Interval <span class="macro-nonterminal">$unit </span>Type&gt;])
<a href=#112 id=112 data-nosnippet>112</a> }
<a href=#113 id=113 data-nosnippet>113</a>
<a href=#114 id=114 data-nosnippet>114</a> <span class="kw">fn </span>cast_vector(vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector) -&gt; <span class="kw">crate</span>::Result&lt;<span class="kw-2">&amp;</span>PrimitiveVector&lt;<span class="self">Self</span>&gt;&gt; {
<a href=#115 id=115 data-nosnippet>115</a> vector
<a href=#116 id=116 data-nosnippet>116</a> .as_any()
<a href=#117 id=117 data-nosnippet>117</a> .downcast_ref::&lt;[&lt;Interval <span class="macro-nonterminal">$unit </span>Vector&gt;]&gt;()
<a href=#118 id=118 data-nosnippet>118</a> .with_context(|| error::CastTypeSnafu {
<a href=#119 id=119 data-nosnippet>119</a> msg: <span class="macro">format!</span>(
<a href=#120 id=120 data-nosnippet>120</a> <span class="string">"Failed to cast {} to {}"</span>,
<a href=#121 id=121 data-nosnippet>121</a> vector.vector_type_name(), <span class="macro">stringify!</span>([&lt;Interval <span class="macro-nonterminal">$unit </span>Vector&gt;])
<a href=#122 id=122 data-nosnippet>122</a> ),
<a href=#123 id=123 data-nosnippet>123</a> })
<a href=#124 id=124 data-nosnippet>124</a> }
<a href=#125 id=125 data-nosnippet>125</a>
<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">fn </span>cast_value_ref(value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="kw">crate</span>::Result&lt;<span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::Wrapper&gt;&gt; {
<a href=#127 id=127 data-nosnippet>127</a> <span class="kw">match </span>value {
<a href=#128 id=128 data-nosnippet>128</a> ValueRef::Null =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
<a href=#129 id=129 data-nosnippet>129</a> ValueRef::[&lt;Interval <span class="macro-nonterminal">$unit</span>&gt;](t) =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="kw-2">*</span>t)),
<a href=#130 id=130 data-nosnippet>130</a> other =&gt; error::CastTypeSnafu {
<a href=#131 id=131 data-nosnippet>131</a> msg: <span class="macro">format!</span>(<span class="string">"Failed to cast value {:?} to {}"</span>, other, <span class="macro">stringify!</span>([&lt;Interval <span class="macro-nonterminal">$unit</span>&gt;])),
<a href=#132 id=132 data-nosnippet>132</a> }
<a href=#133 id=133 data-nosnippet>133</a> .fail(),
<a href=#134 id=134 data-nosnippet>134</a> }
<a href=#135 id=135 data-nosnippet>135</a> }
<a href=#136 id=136 data-nosnippet>136</a> }
<a href=#137 id=137 data-nosnippet>137</a> }
<a href=#138 id=138 data-nosnippet>138</a> }
<a href=#139 id=139 data-nosnippet>139</a>}
<a href=#140 id=140 data-nosnippet>140</a>
<a href=#141 id=141 data-nosnippet>141</a><span class="macro">impl_data_type_for_interval!</span>(YearMonth, i32);
<a href=#142 id=142 data-nosnippet>142</a><span class="macro">impl_data_type_for_interval!</span>(DayTime, ArrowIntervalDayTime);
<a href=#143 id=143 data-nosnippet>143</a><span class="macro">impl_data_type_for_interval!</span>(MonthDayNano, ArrowIntervalMonthDayNano);
<a href=#144 id=144 data-nosnippet>144</a>
<a href=#145 id=145 data-nosnippet>145</a><span class="attr">#[cfg(test)]
<a href=#146 id=146 data-nosnippet>146</a></span><span class="kw">mod </span>tests {
<a href=#147 id=147 data-nosnippet>147</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#148 id=148 data-nosnippet>148</a>
<a href=#149 id=149 data-nosnippet>149</a> <span class="attr">#[test]
<a href=#150 id=150 data-nosnippet>150</a> </span><span class="kw">fn </span>test_interval_type_unit() {
<a href=#151 id=151 data-nosnippet>151</a> <span class="macro">assert_eq!</span>(
<a href=#152 id=152 data-nosnippet>152</a> IntervalUnit::DayTime,
<a href=#153 id=153 data-nosnippet>153</a> IntervalType::DayTime(IntervalDayTimeType).unit()
<a href=#154 id=154 data-nosnippet>154</a> );
<a href=#155 id=155 data-nosnippet>155</a> <span class="macro">assert_eq!</span>(
<a href=#156 id=156 data-nosnippet>156</a> IntervalUnit::MonthDayNano,
<a href=#157 id=157 data-nosnippet>157</a> IntervalType::MonthDayNano(IntervalMonthDayNanoType).unit()
<a href=#158 id=158 data-nosnippet>158</a> );
<a href=#159 id=159 data-nosnippet>159</a> <span class="macro">assert_eq!</span>(
<a href=#160 id=160 data-nosnippet>160</a> IntervalUnit::YearMonth,
<a href=#161 id=161 data-nosnippet>161</a> IntervalType::YearMonth(IntervalYearMonthType).unit()
<a href=#162 id=162 data-nosnippet>162</a> );
<a href=#163 id=163 data-nosnippet>163</a> }
<a href=#164 id=164 data-nosnippet>164</a>
<a href=#165 id=165 data-nosnippet>165</a> <span class="attr">#[test]
<a href=#166 id=166 data-nosnippet>166</a> </span><span class="kw">fn </span>test_interval_as_arrow_type() {
<a href=#167 id=167 data-nosnippet>167</a> <span class="macro">assert_eq!</span>(
<a href=#168 id=168 data-nosnippet>168</a> ArrowDataType::Interval(ArrowIntervalUnit::DayTime),
<a href=#169 id=169 data-nosnippet>169</a> IntervalType::DayTime(IntervalDayTimeType).as_arrow_type()
<a href=#170 id=170 data-nosnippet>170</a> );
<a href=#171 id=171 data-nosnippet>171</a> <span class="macro">assert_eq!</span>(
<a href=#172 id=172 data-nosnippet>172</a> ArrowDataType::Interval(ArrowIntervalUnit::MonthDayNano),
<a href=#173 id=173 data-nosnippet>173</a> IntervalType::MonthDayNano(IntervalMonthDayNanoType).as_arrow_type()
<a href=#174 id=174 data-nosnippet>174</a> );
<a href=#175 id=175 data-nosnippet>175</a> <span class="macro">assert_eq!</span>(
<a href=#176 id=176 data-nosnippet>176</a> ArrowDataType::Interval(ArrowIntervalUnit::YearMonth),
<a href=#177 id=177 data-nosnippet>177</a> IntervalType::YearMonth(IntervalYearMonthType).as_arrow_type()
<a href=#178 id=178 data-nosnippet>178</a> );
<a href=#179 id=179 data-nosnippet>179</a> }
<a href=#180 id=180 data-nosnippet>180</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/json_type.rs`."><title>json_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>json_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::collections::BTreeMap;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::fmt::{Debug, Display, Formatter};
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>std::sync::{Arc, LazyLock};
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>arrow::datatypes::DataType <span class="kw">as </span>ArrowDataType;
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>arrow_schema::{Field, Fields};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>common_base::bytes::Bytes;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>regex::{Captures, Regex};
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#24 id=24 data-nosnippet>24</a>
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::Error;
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::data_type::DataType;
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::error::{InvalidJsonSnafu, InvalidJsonbSnafu, <span class="prelude-ty">Result</span>, UnsupportedArrowTypeSnafu};
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span><span class="kw">crate</span>::prelude::ConcreteDataType;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::scalars::ScalarVectorBuilder;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::type_id::LogicalTypeId;
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span><span class="kw">crate</span>::vectors::json::builder::JsonVectorBuilder;
<a href=#33 id=33 data-nosnippet>33</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{BinaryVectorBuilder, MutableVector};
<a href=#34 id=34 data-nosnippet>34</a>
<a href=#35 id=35 data-nosnippet>35</a><span class="kw">pub const </span>JSON_TYPE_NAME: <span class="kw-2">&amp;</span>str = <span class="string">"Json"</span>;
<a href=#36 id=36 data-nosnippet>36</a><span class="kw">const </span>JSON2_TYPE_NAME: <span class="kw-2">&amp;</span>str = <span class="string">"Json2"</span>;
<a href=#37 id=37 data-nosnippet>37</a>
<a href=#38 id=38 data-nosnippet>38</a><span class="kw">pub type </span>JsonObjectType = BTreeMap&lt;String, JsonNativeType&gt;;
<a href=#39 id=39 data-nosnippet>39</a>
<a href=#40 id=40 data-nosnippet>40</a><span class="attr">#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#41 id=41 data-nosnippet>41</a></span><span class="kw">pub enum </span>JsonNumberType {
<a href=#42 id=42 data-nosnippet>42</a> U64,
<a href=#43 id=43 data-nosnippet>43</a> I64,
<a href=#44 id=44 data-nosnippet>44</a> F64,
<a href=#45 id=45 data-nosnippet>45</a>}
<a href=#46 id=46 data-nosnippet>46</a>
<a href=#47 id=47 data-nosnippet>47</a><span class="attr">#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize, Default)]
<a href=#48 id=48 data-nosnippet>48</a></span><span class="kw">pub enum </span>JsonNativeType {
<a href=#49 id=49 data-nosnippet>49</a> <span class="doccomment">/// JSON null value type.
<a href=#50 id=50 data-nosnippet>50</a> ///
<a href=#51 id=51 data-nosnippet>51</a> /// This variant may also appear as the initial state while merging inferred
<a href=#52 id=52 data-nosnippet>52</a> /// types, but it does not represent an empty object. Empty objects are
<a href=#53 id=53 data-nosnippet>53</a> /// represented as `Object({})`.
<a href=#54 id=54 data-nosnippet>54</a> </span><span class="attr">#[default]
<a href=#55 id=55 data-nosnippet>55</a> </span>Null,
<a href=#56 id=56 data-nosnippet>56</a> Bool,
<a href=#57 id=57 data-nosnippet>57</a> Number(JsonNumberType),
<a href=#58 id=58 data-nosnippet>58</a> String,
<a href=#59 id=59 data-nosnippet>59</a> Array(Box&lt;JsonNativeType&gt;),
<a href=#60 id=60 data-nosnippet>60</a> Object(JsonObjectType),
<a href=#61 id=61 data-nosnippet>61</a> <span class="doccomment">/// A special (not in the JSON official specification) JSON type to indicate the "resolved" or
<a href=#62 id=62 data-nosnippet>62</a> /// "lifted" type of two conflicting JSON types. For example, when merging JSON types of "Bool"
<a href=#63 id=63 data-nosnippet>63</a> /// and "Number".
<a href=#64 id=64 data-nosnippet>64</a> </span>Variant,
<a href=#65 id=65 data-nosnippet>65</a>}
<a href=#66 id=66 data-nosnippet>66</a>
<a href=#67 id=67 data-nosnippet>67</a><span class="kw">impl </span>JsonNativeType {
<a href=#68 id=68 data-nosnippet>68</a> <span class="kw">pub fn </span>is_null(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#69 id=69 data-nosnippet>69</a> <span class="macro">matches!</span>(<span class="self">self</span>, JsonNativeType::Null)
<a href=#70 id=70 data-nosnippet>70</a> }
<a href=#71 id=71 data-nosnippet>71</a>
<a href=#72 id=72 data-nosnippet>72</a> <span class="kw">pub fn </span>u64() -&gt; <span class="self">Self </span>{
<a href=#73 id=73 data-nosnippet>73</a> <span class="self">Self</span>::Number(JsonNumberType::U64)
<a href=#74 id=74 data-nosnippet>74</a> }
<a href=#75 id=75 data-nosnippet>75</a>
<a href=#76 id=76 data-nosnippet>76</a> <span class="kw">pub fn </span>i64() -&gt; <span class="self">Self </span>{
<a href=#77 id=77 data-nosnippet>77</a> <span class="self">Self</span>::Number(JsonNumberType::I64)
<a href=#78 id=78 data-nosnippet>78</a> }
<a href=#79 id=79 data-nosnippet>79</a>
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">pub fn </span>f64() -&gt; <span class="self">Self </span>{
<a href=#81 id=81 data-nosnippet>81</a> <span class="self">Self</span>::Number(JsonNumberType::F64)
<a href=#82 id=82 data-nosnippet>82</a> }
<a href=#83 id=83 data-nosnippet>83</a>
<a href=#84 id=84 data-nosnippet>84</a> <span class="kw">pub fn </span>object() -&gt; <span class="self">Self </span>{
<a href=#85 id=85 data-nosnippet>85</a> <span class="self">Self</span>::Object(JsonObjectType::new())
<a href=#86 id=86 data-nosnippet>86</a> }
<a href=#87 id=87 data-nosnippet>87</a>
<a href=#88 id=88 data-nosnippet>88</a> <span class="doccomment">/// Merge other [JsonNativeType] into this.
<a href=#89 id=89 data-nosnippet>89</a> /// Conflicting fields will be resolved to the "Variant" type.
<a href=#90 id=90 data-nosnippet>90</a> </span><span class="kw">pub fn </span>merge(<span class="kw-2">&amp;mut </span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>JsonNativeType) {
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">if </span><span class="self">self </span>== other {
<a href=#92 id=92 data-nosnippet>92</a> <span class="kw">return</span>;
<a href=#93 id=93 data-nosnippet>93</a> }
<a href=#94 id=94 data-nosnippet>94</a>
<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">fn </span>merge_object(this: <span class="kw-2">&amp;mut </span>JsonObjectType, that: <span class="kw-2">&amp;</span>JsonObjectType) {
<a href=#96 id=96 data-nosnippet>96</a> <span class="comment">// merge "that" into "this" directly:
<a href=#97 id=97 data-nosnippet>97</a> </span><span class="kw">for </span>(type_name, that_type) <span class="kw">in </span>that {
<a href=#98 id=98 data-nosnippet>98</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(this_type) = this.get_mut(type_name) {
<a href=#99 id=99 data-nosnippet>99</a> this_type.merge(that_type);
<a href=#100 id=100 data-nosnippet>100</a> } <span class="kw">else </span>{
<a href=#101 id=101 data-nosnippet>101</a> this.insert(type_name.clone(), that_type.clone());
<a href=#102 id=102 data-nosnippet>102</a> }
<a href=#103 id=103 data-nosnippet>103</a> }
<a href=#104 id=104 data-nosnippet>104</a> }
<a href=#105 id=105 data-nosnippet>105</a>
<a href=#106 id=106 data-nosnippet>106</a> <span class="kw">let </span>zelf = std::mem::take(<span class="self">self</span>);
<a href=#107 id=107 data-nosnippet>107</a> <span class="kw-2">*</span><span class="self">self </span>= <span class="kw">match </span>(zelf, other) {
<a href=#108 id=108 data-nosnippet>108</a> (JsonNativeType::Object(<span class="kw-2">mut </span>this), JsonNativeType::Object(that)) =&gt; {
<a href=#109 id=109 data-nosnippet>109</a> merge_object(<span class="kw-2">&amp;mut </span>this, that);
<a href=#110 id=110 data-nosnippet>110</a> JsonNativeType::Object(this)
<a href=#111 id=111 data-nosnippet>111</a> }
<a href=#112 id=112 data-nosnippet>112</a> (JsonNativeType::Array(<span class="kw-2">mut </span>this), JsonNativeType::Array(that)) =&gt; {
<a href=#113 id=113 data-nosnippet>113</a> this.merge(that);
<a href=#114 id=114 data-nosnippet>114</a> JsonNativeType::Array(this)
<a href=#115 id=115 data-nosnippet>115</a> }
<a href=#116 id=116 data-nosnippet>116</a> (JsonNativeType::Null, that) =&gt; that.clone(),
<a href=#117 id=117 data-nosnippet>117</a> (this, JsonNativeType::Null) =&gt; this,
<a href=#118 id=118 data-nosnippet>118</a> (this, that) <span class="kw">if </span>this == <span class="kw-2">*</span>that =&gt; this,
<a href=#119 id=119 data-nosnippet>119</a>
<a href=#120 id=120 data-nosnippet>120</a> <span class="kw">_ </span>=&gt; JsonNativeType::Variant,
<a href=#121 id=121 data-nosnippet>121</a> };
<a href=#122 id=122 data-nosnippet>122</a> }
<a href=#123 id=123 data-nosnippet>123</a>
<a href=#124 id=124 data-nosnippet>124</a> <span class="kw">pub fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#126 id=126 data-nosnippet>126</a> JsonNativeType::Null =&gt; ArrowDataType::Null,
<a href=#127 id=127 data-nosnippet>127</a> JsonNativeType::Bool =&gt; ArrowDataType::Boolean,
<a href=#128 id=128 data-nosnippet>128</a> JsonNativeType::Number(n) =&gt; <span class="kw">match </span>n {
<a href=#129 id=129 data-nosnippet>129</a> JsonNumberType::U64 =&gt; ArrowDataType::UInt64,
<a href=#130 id=130 data-nosnippet>130</a> JsonNumberType::I64 =&gt; ArrowDataType::Int64,
<a href=#131 id=131 data-nosnippet>131</a> JsonNumberType::F64 =&gt; ArrowDataType::Float64,
<a href=#132 id=132 data-nosnippet>132</a> },
<a href=#133 id=133 data-nosnippet>133</a> JsonNativeType::String =&gt; ArrowDataType::Utf8View,
<a href=#134 id=134 data-nosnippet>134</a> JsonNativeType::Array(array) =&gt; {
<a href=#135 id=135 data-nosnippet>135</a> ArrowDataType::List(Arc::new(Field::new(<span class="string">"item"</span>, array.as_arrow_type(), <span class="bool-val">true</span>)))
<a href=#136 id=136 data-nosnippet>136</a> }
<a href=#137 id=137 data-nosnippet>137</a> JsonNativeType::Object(object) =&gt; {
<a href=#138 id=138 data-nosnippet>138</a> <span class="kw">let </span>fields = object
<a href=#139 id=139 data-nosnippet>139</a> .iter()
<a href=#140 id=140 data-nosnippet>140</a> .map(|(k, v)| Arc::new(Field::new(k, v.as_arrow_type(), <span class="bool-val">true</span>)))
<a href=#141 id=141 data-nosnippet>141</a> .collect::&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;();
<a href=#142 id=142 data-nosnippet>142</a> ArrowDataType::Struct(Fields::from(fields))
<a href=#143 id=143 data-nosnippet>143</a> }
<a href=#144 id=144 data-nosnippet>144</a> JsonNativeType::Variant =&gt; ArrowDataType::Binary,
<a href=#145 id=145 data-nosnippet>145</a> }
<a href=#146 id=146 data-nosnippet>146</a> }
<a href=#147 id=147 data-nosnippet>147</a>
<a href=#148 id=148 data-nosnippet>148</a> <span class="doccomment">/// Returns whether this type is a boolean, number, or string scalar.
<a href=#149 id=149 data-nosnippet>149</a> </span><span class="kw">pub fn </span>is_primitive(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#150 id=150 data-nosnippet>150</a> <span class="macro">matches!</span>(
<a href=#151 id=151 data-nosnippet>151</a> <span class="self">self</span>,
<a href=#152 id=152 data-nosnippet>152</a> JsonNativeType::Bool | JsonNativeType::Number(<span class="kw">_</span>) | JsonNativeType::String
<a href=#153 id=153 data-nosnippet>153</a> )
<a href=#154 id=154 data-nosnippet>154</a> }
<a href=#155 id=155 data-nosnippet>155</a>}
<a href=#156 id=156 data-nosnippet>156</a>
<a href=#157 id=157 data-nosnippet>157</a><span class="kw">impl </span>From&lt;<span class="kw-2">&amp;</span>ConcreteDataType&gt; <span class="kw">for </span>JsonNativeType {
<a href=#158 id=158 data-nosnippet>158</a> <span class="kw">fn </span>from(value: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="self">Self </span>{
<a href=#159 id=159 data-nosnippet>159</a> <span class="kw">match </span>value {
<a href=#160 id=160 data-nosnippet>160</a> ConcreteDataType::Null(<span class="kw">_</span>) =&gt; JsonNativeType::Null,
<a href=#161 id=161 data-nosnippet>161</a> ConcreteDataType::Boolean(<span class="kw">_</span>) =&gt; JsonNativeType::Bool,
<a href=#162 id=162 data-nosnippet>162</a> ConcreteDataType::UInt64(<span class="kw">_</span>)
<a href=#163 id=163 data-nosnippet>163</a> | ConcreteDataType::UInt32(<span class="kw">_</span>)
<a href=#164 id=164 data-nosnippet>164</a> | ConcreteDataType::UInt16(<span class="kw">_</span>)
<a href=#165 id=165 data-nosnippet>165</a> | ConcreteDataType::UInt8(<span class="kw">_</span>) =&gt; JsonNativeType::u64(),
<a href=#166 id=166 data-nosnippet>166</a> ConcreteDataType::Int64(<span class="kw">_</span>)
<a href=#167 id=167 data-nosnippet>167</a> | ConcreteDataType::Int32(<span class="kw">_</span>)
<a href=#168 id=168 data-nosnippet>168</a> | ConcreteDataType::Int16(<span class="kw">_</span>)
<a href=#169 id=169 data-nosnippet>169</a> | ConcreteDataType::Int8(<span class="kw">_</span>) =&gt; JsonNativeType::i64(),
<a href=#170 id=170 data-nosnippet>170</a> ConcreteDataType::Float64(<span class="kw">_</span>) | ConcreteDataType::Float32(<span class="kw">_</span>) =&gt; JsonNativeType::f64(),
<a href=#171 id=171 data-nosnippet>171</a> ConcreteDataType::String(<span class="kw">_</span>) =&gt; JsonNativeType::String,
<a href=#172 id=172 data-nosnippet>172</a> ConcreteDataType::List(list_type) =&gt; {
<a href=#173 id=173 data-nosnippet>173</a> JsonNativeType::Array(Box::new(JsonNativeType::from(list_type.item_type())))
<a href=#174 id=174 data-nosnippet>174</a> }
<a href=#175 id=175 data-nosnippet>175</a> ConcreteDataType::Struct(struct_type) =&gt; JsonNativeType::Object(
<a href=#176 id=176 data-nosnippet>176</a> struct_type
<a href=#177 id=177 data-nosnippet>177</a> .fields()
<a href=#178 id=178 data-nosnippet>178</a> .iter()
<a href=#179 id=179 data-nosnippet>179</a> .map(|field| (field.name().to_string(), field.data_type().into()))
<a href=#180 id=180 data-nosnippet>180</a> .collect(),
<a href=#181 id=181 data-nosnippet>181</a> ),
<a href=#182 id=182 data-nosnippet>182</a> ConcreteDataType::Json(json_type) =&gt; json_type.native_type().clone(),
<a href=#183 id=183 data-nosnippet>183</a> ConcreteDataType::Binary(<span class="kw">_</span>) =&gt; JsonNativeType::Variant,
<a href=#184 id=184 data-nosnippet>184</a> <span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(),
<a href=#185 id=185 data-nosnippet>185</a> }
<a href=#186 id=186 data-nosnippet>186</a> }
<a href=#187 id=187 data-nosnippet>187</a>}
<a href=#188 id=188 data-nosnippet>188</a>
<a href=#189 id=189 data-nosnippet>189</a><span class="kw">impl </span>TryFrom&lt;<span class="kw-2">&amp;</span>ArrowDataType&gt; <span class="kw">for </span>JsonNativeType {
<a href=#190 id=190 data-nosnippet>190</a> <span class="kw">type </span>Error = Error;
<a href=#191 id=191 data-nosnippet>191</a>
<a href=#192 id=192 data-nosnippet>192</a> <span class="kw">fn </span>try_from(t: <span class="kw-2">&amp;</span>ArrowDataType) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#193 id=193 data-nosnippet>193</a> <span class="kw">let </span>t = <span class="kw">match </span>t {
<a href=#194 id=194 data-nosnippet>194</a> ArrowDataType::Null =&gt; JsonNativeType::Null,
<a href=#195 id=195 data-nosnippet>195</a> ArrowDataType::Boolean =&gt; JsonNativeType::Bool,
<a href=#196 id=196 data-nosnippet>196</a> ArrowDataType::Int8
<a href=#197 id=197 data-nosnippet>197</a> | ArrowDataType::Int16
<a href=#198 id=198 data-nosnippet>198</a> | ArrowDataType::Int32
<a href=#199 id=199 data-nosnippet>199</a> | ArrowDataType::Int64 =&gt; JsonNativeType::i64(),
<a href=#200 id=200 data-nosnippet>200</a> ArrowDataType::UInt8
<a href=#201 id=201 data-nosnippet>201</a> | ArrowDataType::UInt16
<a href=#202 id=202 data-nosnippet>202</a> | ArrowDataType::UInt32
<a href=#203 id=203 data-nosnippet>203</a> | ArrowDataType::UInt64 =&gt; JsonNativeType::u64(),
<a href=#204 id=204 data-nosnippet>204</a> ArrowDataType::Float16 | ArrowDataType::Float32 | ArrowDataType::Float64 =&gt; {
<a href=#205 id=205 data-nosnippet>205</a> JsonNativeType::f64()
<a href=#206 id=206 data-nosnippet>206</a> }
<a href=#207 id=207 data-nosnippet>207</a> ArrowDataType::Binary
<a href=#208 id=208 data-nosnippet>208</a> | ArrowDataType::FixedSizeBinary(<span class="kw">_</span>)
<a href=#209 id=209 data-nosnippet>209</a> | ArrowDataType::LargeBinary
<a href=#210 id=210 data-nosnippet>210</a> | ArrowDataType::BinaryView =&gt; JsonNativeType::Variant,
<a href=#211 id=211 data-nosnippet>211</a> ArrowDataType::Utf8 | ArrowDataType::LargeUtf8 | ArrowDataType::Utf8View =&gt; {
<a href=#212 id=212 data-nosnippet>212</a> JsonNativeType::String
<a href=#213 id=213 data-nosnippet>213</a> }
<a href=#214 id=214 data-nosnippet>214</a> ArrowDataType::List(field)
<a href=#215 id=215 data-nosnippet>215</a> | ArrowDataType::ListView(field)
<a href=#216 id=216 data-nosnippet>216</a> | ArrowDataType::FixedSizeList(field, <span class="kw">_</span>)
<a href=#217 id=217 data-nosnippet>217</a> | ArrowDataType::LargeList(field)
<a href=#218 id=218 data-nosnippet>218</a> | ArrowDataType::LargeListView(field) =&gt; {
<a href=#219 id=219 data-nosnippet>219</a> JsonNativeType::Array(Box::new(<span class="self">Self</span>::try_from(field.data_type())<span class="question-mark">?</span>))
<a href=#220 id=220 data-nosnippet>220</a> }
<a href=#221 id=221 data-nosnippet>221</a> ArrowDataType::Struct(fields) =&gt; {
<a href=#222 id=222 data-nosnippet>222</a> <span class="kw">let </span><span class="kw-2">mut </span>object = JsonObjectType::new();
<a href=#223 id=223 data-nosnippet>223</a> <span class="kw">for </span>field <span class="kw">in </span>fields {
<a href=#224 id=224 data-nosnippet>224</a> object.insert(field.name().clone(), <span class="self">Self</span>::try_from(field.data_type())<span class="question-mark">?</span>);
<a href=#225 id=225 data-nosnippet>225</a> }
<a href=#226 id=226 data-nosnippet>226</a> JsonNativeType::Object(object)
<a href=#227 id=227 data-nosnippet>227</a> }
<a href=#228 id=228 data-nosnippet>228</a> t =&gt; {
<a href=#229 id=229 data-nosnippet>229</a> <span class="kw">return </span>UnsupportedArrowTypeSnafu {
<a href=#230 id=230 data-nosnippet>230</a> arrow_type: t.clone(),
<a href=#231 id=231 data-nosnippet>231</a> }
<a href=#232 id=232 data-nosnippet>232</a> .fail();
<a href=#233 id=233 data-nosnippet>233</a> }
<a href=#234 id=234 data-nosnippet>234</a> };
<a href=#235 id=235 data-nosnippet>235</a> <span class="prelude-val">Ok</span>(t)
<a href=#236 id=236 data-nosnippet>236</a> }
<a href=#237 id=237 data-nosnippet>237</a>}
<a href=#238 id=238 data-nosnippet>238</a>
<a href=#239 id=239 data-nosnippet>239</a><span class="kw">impl </span>Display <span class="kw">for </span>JsonNativeType {
<a href=#240 id=240 data-nosnippet>240</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; std::fmt::Result {
<a href=#241 id=241 data-nosnippet>241</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#242 id=242 data-nosnippet>242</a> JsonNativeType::Null =&gt; <span class="macro">write!</span>(f, <span class="string">r#""&lt;Null&gt;""#</span>),
<a href=#243 id=243 data-nosnippet>243</a> JsonNativeType::Bool =&gt; <span class="macro">write!</span>(f, <span class="string">r#""&lt;Bool&gt;""#</span>),
<a href=#244 id=244 data-nosnippet>244</a> JsonNativeType::Number(<span class="kw">_</span>) =&gt; {
<a href=#245 id=245 data-nosnippet>245</a> <span class="macro">write!</span>(f, <span class="string">r#""&lt;Number&gt;""#</span>)
<a href=#246 id=246 data-nosnippet>246</a> }
<a href=#247 id=247 data-nosnippet>247</a> JsonNativeType::String =&gt; <span class="macro">write!</span>(f, <span class="string">r#""&lt;String&gt;""#</span>),
<a href=#248 id=248 data-nosnippet>248</a> JsonNativeType::Array(item_type) =&gt; <span class="macro">write!</span>(f, <span class="string">"[{}]"</span>, item_type),
<a href=#249 id=249 data-nosnippet>249</a> JsonNativeType::Object(object) =&gt; {
<a href=#250 id=250 data-nosnippet>250</a> <span class="macro">write!</span>(
<a href=#251 id=251 data-nosnippet>251</a> f,
<a href=#252 id=252 data-nosnippet>252</a> <span class="string">"{{{}}}"</span>,
<a href=#253 id=253 data-nosnippet>253</a> object
<a href=#254 id=254 data-nosnippet>254</a> .iter()
<a href=#255 id=255 data-nosnippet>255</a> .map(|(k, v)| <span class="macro">format!</span>(<span class="string">r#""{k}":{v}"#</span>))
<a href=#256 id=256 data-nosnippet>256</a> .collect::&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;()
<a href=#257 id=257 data-nosnippet>257</a> .join(<span class="string">","</span>)
<a href=#258 id=258 data-nosnippet>258</a> )
<a href=#259 id=259 data-nosnippet>259</a> }
<a href=#260 id=260 data-nosnippet>260</a> JsonNativeType::Variant =&gt; <span class="macro">write!</span>(f, <span class="string">r#""&lt;Variant&gt;""#</span>),
<a href=#261 id=261 data-nosnippet>261</a> }
<a href=#262 id=262 data-nosnippet>262</a> }
<a href=#263 id=263 data-nosnippet>263</a>}
<a href=#264 id=264 data-nosnippet>264</a>
<a href=#265 id=265 data-nosnippet>265</a><span class="attr">#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize, Default)]
<a href=#266 id=266 data-nosnippet>266</a></span><span class="kw">pub enum </span>JsonFormat {
<a href=#267 id=267 data-nosnippet>267</a> <span class="attr">#[default]
<a href=#268 id=268 data-nosnippet>268</a> </span>Jsonb,
<a href=#269 id=269 data-nosnippet>269</a> Json2(Arc&lt;JsonNativeType&gt;),
<a href=#270 id=270 data-nosnippet>270</a>}
<a href=#271 id=271 data-nosnippet>271</a>
<a href=#272 id=272 data-nosnippet>272</a><span class="doccomment">/// JsonType is a data type for JSON data. It is stored as binary data of jsonb format.
<a href=#273 id=273 data-nosnippet>273</a>/// It utilizes current binary value and vector implementation.
<a href=#274 id=274 data-nosnippet>274</a></span><span class="attr">#[derive(Debug, Default, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#275 id=275 data-nosnippet>275</a></span><span class="kw">pub struct </span>JsonType {
<a href=#276 id=276 data-nosnippet>276</a> <span class="kw">pub </span>format: JsonFormat,
<a href=#277 id=277 data-nosnippet>277</a>}
<a href=#278 id=278 data-nosnippet>278</a>
<a href=#279 id=279 data-nosnippet>279</a><span class="kw">impl </span>JsonType {
<a href=#280 id=280 data-nosnippet>280</a> <span class="kw">pub fn </span>new(format: JsonFormat) -&gt; <span class="self">Self </span>{
<a href=#281 id=281 data-nosnippet>281</a> <span class="self">Self </span>{ format }
<a href=#282 id=282 data-nosnippet>282</a> }
<a href=#283 id=283 data-nosnippet>283</a>
<a href=#284 id=284 data-nosnippet>284</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>json2(json_type: Arc&lt;JsonNativeType&gt;) -&gt; <span class="self">Self </span>{
<a href=#285 id=285 data-nosnippet>285</a> <span class="self">Self </span>{
<a href=#286 id=286 data-nosnippet>286</a> format: JsonFormat::Json2(json_type),
<a href=#287 id=287 data-nosnippet>287</a> }
<a href=#288 id=288 data-nosnippet>288</a> }
<a href=#289 id=289 data-nosnippet>289</a>
<a href=#290 id=290 data-nosnippet>290</a> <span class="kw">pub fn </span>is_json2(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#291 id=291 data-nosnippet>291</a> <span class="macro">matches!</span>(<span class="self">self</span>.format, JsonFormat::Json2(<span class="kw">_</span>))
<a href=#292 id=292 data-nosnippet>292</a> }
<a href=#293 id=293 data-nosnippet>293</a>
<a href=#294 id=294 data-nosnippet>294</a> <span class="doccomment">/// Returns the native JSON type represented by this data type.
<a href=#295 id=295 data-nosnippet>295</a> </span><span class="kw">pub fn </span>native_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>JsonNativeType {
<a href=#296 id=296 data-nosnippet>296</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.format {
<a href=#297 id=297 data-nosnippet>297</a> JsonFormat::Jsonb =&gt; <span class="kw-2">&amp;</span>JsonNativeType::String,
<a href=#298 id=298 data-nosnippet>298</a> JsonFormat::Json2(x) =&gt; x.as_ref(),
<a href=#299 id=299 data-nosnippet>299</a> }
<a href=#300 id=300 data-nosnippet>300</a> }
<a href=#301 id=301 data-nosnippet>301</a>
<a href=#302 id=302 data-nosnippet>302</a> <span class="kw">pub fn </span>null() -&gt; <span class="self">Self </span>{
<a href=#303 id=303 data-nosnippet>303</a> <span class="self">Self</span>::json2(Arc::new(JsonNativeType::Null))
<a href=#304 id=304 data-nosnippet>304</a> }
<a href=#305 id=305 data-nosnippet>305</a>
<a href=#306 id=306 data-nosnippet>306</a> <span class="doccomment">/// Check if it includes all fields in `other` json type.
<a href=#307 id=307 data-nosnippet>307</a> </span><span class="kw">pub fn </span>is_include(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>JsonType) -&gt; bool {
<a href=#308 id=308 data-nosnippet>308</a> <span class="kw">match </span>(<span class="kw-2">&amp;</span><span class="self">self</span>.format, <span class="kw-2">&amp;</span>other.format) {
<a href=#309 id=309 data-nosnippet>309</a> (JsonFormat::Jsonb, JsonFormat::Jsonb) =&gt; <span class="bool-val">true</span>,
<a href=#310 id=310 data-nosnippet>310</a> (JsonFormat::Json2(this), JsonFormat::Json2(that)) =&gt; is_include(this, that),
<a href=#311 id=311 data-nosnippet>311</a> <span class="kw">_ </span>=&gt; <span class="bool-val">false</span>,
<a href=#312 id=312 data-nosnippet>312</a> }
<a href=#313 id=313 data-nosnippet>313</a> }
<a href=#314 id=314 data-nosnippet>314</a>}
<a href=#315 id=315 data-nosnippet>315</a>
<a href=#316 id=316 data-nosnippet>316</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>is_include(this: <span class="kw-2">&amp;</span>JsonNativeType, that: <span class="kw-2">&amp;</span>JsonNativeType) -&gt; bool {
<a href=#317 id=317 data-nosnippet>317</a> <span class="kw">fn </span>is_include_object(this: <span class="kw-2">&amp;</span>JsonObjectType, that: <span class="kw-2">&amp;</span>JsonObjectType) -&gt; bool {
<a href=#318 id=318 data-nosnippet>318</a> <span class="kw">for </span>(type_name, that_type) <span class="kw">in </span>that {
<a href=#319 id=319 data-nosnippet>319</a> <span class="kw">let </span><span class="prelude-val">Some</span>(this_type) = this.get(type_name) <span class="kw">else </span>{
<a href=#320 id=320 data-nosnippet>320</a> <span class="kw">return </span><span class="bool-val">false</span>;
<a href=#321 id=321 data-nosnippet>321</a> };
<a href=#322 id=322 data-nosnippet>322</a> <span class="kw">if </span>!is_include(this_type, that_type) {
<a href=#323 id=323 data-nosnippet>323</a> <span class="kw">return </span><span class="bool-val">false</span>;
<a href=#324 id=324 data-nosnippet>324</a> }
<a href=#325 id=325 data-nosnippet>325</a> }
<a href=#326 id=326 data-nosnippet>326</a> <span class="bool-val">true
<a href=#327 id=327 data-nosnippet>327</a> </span>}
<a href=#328 id=328 data-nosnippet>328</a>
<a href=#329 id=329 data-nosnippet>329</a> <span class="kw">match </span>(this, that) {
<a href=#330 id=330 data-nosnippet>330</a> (this, that) <span class="kw">if </span>this == that =&gt; <span class="bool-val">true</span>,
<a href=#331 id=331 data-nosnippet>331</a> (JsonNativeType::Array(this), JsonNativeType::Array(that)) =&gt; is_include(this, that),
<a href=#332 id=332 data-nosnippet>332</a> (JsonNativeType::Object(this), JsonNativeType::Object(that)) =&gt; {
<a href=#333 id=333 data-nosnippet>333</a> is_include_object(this, that)
<a href=#334 id=334 data-nosnippet>334</a> }
<a href=#335 id=335 data-nosnippet>335</a> (<span class="kw">_</span>, JsonNativeType::Null) =&gt; <span class="bool-val">true</span>,
<a href=#336 id=336 data-nosnippet>336</a> <span class="kw">_ </span>=&gt; <span class="bool-val">false</span>,
<a href=#337 id=337 data-nosnippet>337</a> }
<a href=#338 id=338 data-nosnippet>338</a>}
<a href=#339 id=339 data-nosnippet>339</a>
<a href=#340 id=340 data-nosnippet>340</a><span class="kw">impl </span>DataType <span class="kw">for </span>JsonType {
<a href=#341 id=341 data-nosnippet>341</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#342 id=342 data-nosnippet>342</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.format {
<a href=#343 id=343 data-nosnippet>343</a> JsonFormat::Jsonb =&gt; JSON_TYPE_NAME.to_string(),
<a href=#344 id=344 data-nosnippet>344</a> JsonFormat::Json2(ty) =&gt; {
<a href=#345 id=345 data-nosnippet>345</a> <span class="macro">format!</span>(<span class="string">"{JSON2_TYPE_NAME}{}"</span>, ty)
<a href=#346 id=346 data-nosnippet>346</a> }
<a href=#347 id=347 data-nosnippet>347</a> }
<a href=#348 id=348 data-nosnippet>348</a> }
<a href=#349 id=349 data-nosnippet>349</a>
<a href=#350 id=350 data-nosnippet>350</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#351 id=351 data-nosnippet>351</a> LogicalTypeId::Json
<a href=#352 id=352 data-nosnippet>352</a> }
<a href=#353 id=353 data-nosnippet>353</a>
<a href=#354 id=354 data-nosnippet>354</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#355 id=355 data-nosnippet>355</a> Bytes::default().into()
<a href=#356 id=356 data-nosnippet>356</a> }
<a href=#357 id=357 data-nosnippet>357</a>
<a href=#358 id=358 data-nosnippet>358</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#359 id=359 data-nosnippet>359</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.format {
<a href=#360 id=360 data-nosnippet>360</a> JsonFormat::Jsonb =&gt; ArrowDataType::Binary,
<a href=#361 id=361 data-nosnippet>361</a> JsonFormat::Json2(x) =&gt; {
<a href=#362 id=362 data-nosnippet>362</a> <span class="kw">let </span><span class="kw-2">mut </span>object = JsonNativeType::object();
<a href=#363 id=363 data-nosnippet>363</a> object.merge(x.as_ref());
<a href=#364 id=364 data-nosnippet>364</a> object.as_arrow_type()
<a href=#365 id=365 data-nosnippet>365</a> }
<a href=#366 id=366 data-nosnippet>366</a> }
<a href=#367 id=367 data-nosnippet>367</a> }
<a href=#368 id=368 data-nosnippet>368</a>
<a href=#369 id=369 data-nosnippet>369</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#370 id=370 data-nosnippet>370</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.format {
<a href=#371 id=371 data-nosnippet>371</a> JsonFormat::Jsonb =&gt; Box::new(BinaryVectorBuilder::with_capacity(capacity)),
<a href=#372 id=372 data-nosnippet>372</a> <span class="comment">// TODO(LFC): Carry JsonSettings in JsonFormat::Json2 and use with_settings here.
<a href=#373 id=373 data-nosnippet>373</a> </span>JsonFormat::Json2(x) =&gt; Box::new(JsonVectorBuilder::new(x.as_ref().clone(), capacity)),
<a href=#374 id=374 data-nosnippet>374</a> }
<a href=#375 id=375 data-nosnippet>375</a> }
<a href=#376 id=376 data-nosnippet>376</a>
<a href=#377 id=377 data-nosnippet>377</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#378 id=378 data-nosnippet>378</a> <span class="kw">match </span>from {
<a href=#379 id=379 data-nosnippet>379</a> Value::Binary(v) =&gt; <span class="prelude-val">Some</span>(Value::Binary(v)),
<a href=#380 id=380 data-nosnippet>380</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#381 id=381 data-nosnippet>381</a> }
<a href=#382 id=382 data-nosnippet>382</a> }
<a href=#383 id=383 data-nosnippet>383</a>}
<a href=#384 id=384 data-nosnippet>384</a>
<a href=#385 id=385 data-nosnippet>385</a><span class="kw">impl </span>Display <span class="kw">for </span>JsonType {
<a href=#386 id=386 data-nosnippet>386</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; std::fmt::Result {
<a href=#387 id=387 data-nosnippet>387</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, <span class="self">self</span>.name())
<a href=#388 id=388 data-nosnippet>388</a> }
<a href=#389 id=389 data-nosnippet>389</a>}
<a href=#390 id=390 data-nosnippet>390</a>
<a href=#391 id=391 data-nosnippet>391</a><span class="doccomment">/// Converts a json type value to string
<a href=#392 id=392 data-nosnippet>392</a></span><span class="kw">pub fn </span>jsonb_to_string(val: <span class="kw-2">&amp;</span>[u8]) -&gt; <span class="prelude-ty">Result</span>&lt;String&gt; {
<a href=#393 id=393 data-nosnippet>393</a> <span class="kw">if </span>val.is_empty() {
<a href=#394 id=394 data-nosnippet>394</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="string">""</span>.to_string());
<a href=#395 id=395 data-nosnippet>395</a> }
<a href=#396 id=396 data-nosnippet>396</a> <span class="kw">match </span>jsonb::from_slice(val) {
<a href=#397 id=397 data-nosnippet>397</a> <span class="prelude-val">Ok</span>(jsonb_value) =&gt; {
<a href=#398 id=398 data-nosnippet>398</a> <span class="kw">let </span>serialized = jsonb_value.to_string();
<a href=#399 id=399 data-nosnippet>399</a> fix_unicode_point(<span class="kw-2">&amp;</span>serialized)
<a href=#400 id=400 data-nosnippet>400</a> }
<a href=#401 id=401 data-nosnippet>401</a> <span class="prelude-val">Err</span>(e) =&gt; InvalidJsonbSnafu { error: e }.fail(),
<a href=#402 id=402 data-nosnippet>402</a> }
<a href=#403 id=403 data-nosnippet>403</a>}
<a href=#404 id=404 data-nosnippet>404</a>
<a href=#405 id=405 data-nosnippet>405</a><span class="doccomment">/// Converts a json type value to serde_json::Value
<a href=#406 id=406 data-nosnippet>406</a></span><span class="kw">pub fn </span>jsonb_to_serde_json(val: <span class="kw-2">&amp;</span>[u8]) -&gt; <span class="prelude-ty">Result</span>&lt;serde_json::Value&gt; {
<a href=#407 id=407 data-nosnippet>407</a> jsonb::from_slice(val)
<a href=#408 id=408 data-nosnippet>408</a> .map(Into::into)
<a href=#409 id=409 data-nosnippet>409</a> .map_err(|error| InvalidJsonbSnafu { error }.build())
<a href=#410 id=410 data-nosnippet>410</a>}
<a href=#411 id=411 data-nosnippet>411</a>
<a href=#412 id=412 data-nosnippet>412</a><span class="doccomment">/// Normalizes a JSON string by converting Rust-style Unicode escape sequences to JSON-compatible format.
<a href=#413 id=413 data-nosnippet>413</a>///
<a href=#414 id=414 data-nosnippet>414</a>/// The input is scanned for Rust-style Unicode code
<a href=#415 id=415 data-nosnippet>415</a>/// point escapes of the form `\\u{H...}` (a backslash, `u`, an opening brace,
<a href=#416 id=416 data-nosnippet>416</a>/// followed by 1–6 hexadecimal digits, and a closing brace). Each such escape is
<a href=#417 id=417 data-nosnippet>417</a>/// converted into JSON-compatible UTF‑16 escape sequences:
<a href=#418 id=418 data-nosnippet>418</a>///
<a href=#419 id=419 data-nosnippet>419</a>/// - For code points in the Basic Multilingual Plane (≤ `0xFFFF`), the escape is
<a href=#420 id=420 data-nosnippet>420</a>/// converted to a single JSON `\\uXXXX` sequence with four uppercase hex digits.
<a href=#421 id=421 data-nosnippet>421</a>/// - For code points above `0xFFFF` and less than Unicode max code point `0x10FFFF`,
<a href=#422 id=422 data-nosnippet>422</a>/// the code point is encoded as a UTF‑16 surrogate pair and emitted as two consecutive
<a href=#423 id=423 data-nosnippet>423</a>/// `\\uXXXX` sequences (as JSON format required).
<a href=#424 id=424 data-nosnippet>424</a>///
<a href=#425 id=425 data-nosnippet>425</a>/// After this normalization, the function returns the normalized string
<a href=#426 id=426 data-nosnippet>426</a></span><span class="kw">fn </span>fix_unicode_point(json: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Result</span>&lt;String&gt; {
<a href=#427 id=427 data-nosnippet>427</a> <span class="kw">static </span>UNICODE_CODE_POINT_PATTERN: LazyLock&lt;Regex&gt; = LazyLock::new(|| {
<a href=#428 id=428 data-nosnippet>428</a> <span class="comment">// Match literal "\u{...}" sequences, capturing 1–6 (code point range) hex digits
<a href=#429 id=429 data-nosnippet>429</a> // inside braces.
<a href=#430 id=430 data-nosnippet>430</a> </span>Regex::new(<span class="string">r"\\u\{([0-9a-fA-F]{1,6})}"</span>).unwrap_or_else(|e| <span class="macro">panic!</span>(<span class="string">"{}"</span>, e))
<a href=#431 id=431 data-nosnippet>431</a> });
<a href=#432 id=432 data-nosnippet>432</a>
<a href=#433 id=433 data-nosnippet>433</a> <span class="kw">let </span>v = UNICODE_CODE_POINT_PATTERN.replace_all(json, |caps: <span class="kw-2">&amp;</span>Captures| {
<a href=#434 id=434 data-nosnippet>434</a> <span class="comment">// Extract the hex payload (without braces) and parse to a code point.
<a href=#435 id=435 data-nosnippet>435</a> </span><span class="kw">let </span>hex = <span class="kw-2">&amp;</span>caps[<span class="number">1</span>];
<a href=#436 id=436 data-nosnippet>436</a> <span class="kw">let </span><span class="prelude-val">Ok</span>(code) = u32::from_str_radix(hex, <span class="number">16</span>) <span class="kw">else </span>{
<a href=#437 id=437 data-nosnippet>437</a> <span class="comment">// On parse failure, leave the original escape sequence unchanged.
<a href=#438 id=438 data-nosnippet>438</a> </span><span class="kw">return </span>caps[<span class="number">0</span>].to_string();
<a href=#439 id=439 data-nosnippet>439</a> };
<a href=#440 id=440 data-nosnippet>440</a>
<a href=#441 id=441 data-nosnippet>441</a> <span class="kw">if </span>code &lt;= <span class="number">0xFFFF </span>{
<a href=#442 id=442 data-nosnippet>442</a> <span class="comment">// Basic Multilingual Plane: JSON can represent this directly as \uXXXX.
<a href=#443 id=443 data-nosnippet>443</a> </span><span class="macro">format!</span>(<span class="string">"\\u{:04X}"</span>, code)
<a href=#444 id=444 data-nosnippet>444</a> } <span class="kw">else if </span>code &gt; <span class="number">0x10FFFF </span>{
<a href=#445 id=445 data-nosnippet>445</a> <span class="comment">// Beyond max Unicode code point
<a href=#446 id=446 data-nosnippet>446</a> </span>caps[<span class="number">0</span>].to_string()
<a href=#447 id=447 data-nosnippet>447</a> } <span class="kw">else </span>{
<a href=#448 id=448 data-nosnippet>448</a> <span class="comment">// Supplementary planes: JSON needs UTF-16 surrogate pairs.
<a href=#449 id=449 data-nosnippet>449</a> // Convert the code point to a 20-bit value.
<a href=#450 id=450 data-nosnippet>450</a> </span><span class="kw">let </span>code = code - <span class="number">0x10000</span>;
<a href=#451 id=451 data-nosnippet>451</a>
<a href=#452 id=452 data-nosnippet>452</a> <span class="comment">// High surrogate: top 10 bits, offset by 0xD800.
<a href=#453 id=453 data-nosnippet>453</a> </span><span class="kw">let </span>high = <span class="number">0xD800 </span>+ ((code &gt;&gt; <span class="number">10</span>) &amp; <span class="number">0x3FF</span>);
<a href=#454 id=454 data-nosnippet>454</a>
<a href=#455 id=455 data-nosnippet>455</a> <span class="comment">// Low surrogate: bottom 10 bits, offset by 0xDC00.
<a href=#456 id=456 data-nosnippet>456</a> </span><span class="kw">let </span>low = <span class="number">0xDC00 </span>+ (code &amp; <span class="number">0x3FF</span>);
<a href=#457 id=457 data-nosnippet>457</a>
<a href=#458 id=458 data-nosnippet>458</a> <span class="comment">// Emit two \uXXXX escapes in sequence.
<a href=#459 id=459 data-nosnippet>459</a> </span><span class="macro">format!</span>(<span class="string">"\\u{:04X}\\u{:04X}"</span>, high, low)
<a href=#460 id=460 data-nosnippet>460</a> }
<a href=#461 id=461 data-nosnippet>461</a> });
<a href=#462 id=462 data-nosnippet>462</a> <span class="prelude-val">Ok</span>(v.to_string())
<a href=#463 id=463 data-nosnippet>463</a>}
<a href=#464 id=464 data-nosnippet>464</a>
<a href=#465 id=465 data-nosnippet>465</a><span class="doccomment">/// Parses a string to a json type value
<a href=#466 id=466 data-nosnippet>466</a></span><span class="kw">pub fn </span>parse_string_to_jsonb(s: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;u8&gt;&gt; {
<a href=#467 id=467 data-nosnippet>467</a> jsonb::parse_value_standard_mode(s.as_bytes())
<a href=#468 id=468 data-nosnippet>468</a> .map_err(|<span class="kw">_</span>| InvalidJsonSnafu { value: s }.build())
<a href=#469 id=469 data-nosnippet>469</a> .map(|json| json.to_vec())
<a href=#470 id=470 data-nosnippet>470</a>}
<a href=#471 id=471 data-nosnippet>471</a>
<a href=#472 id=472 data-nosnippet>472</a><span class="attr">#[cfg(test)]
<a href=#473 id=473 data-nosnippet>473</a></span><span class="kw">mod </span>tests {
<a href=#474 id=474 data-nosnippet>474</a> <span class="attr">#[test]
<a href=#475 id=475 data-nosnippet>475</a> </span><span class="kw">fn </span>test_parse_json_rejects_extended_syntax() {
<a href=#476 id=476 data-nosnippet>476</a> <span class="kw">for </span>input <span class="kw">in </span>[<span class="string">"+1"</span>, <span class="string">"01"</span>, <span class="string">".5"</span>, <span class="string">"[1,,2]"</span>, <span class="string">"{'a':1}"</span>] {
<a href=#477 id=477 data-nosnippet>477</a> <span class="macro">assert!</span>(parse_string_to_jsonb(input).is_err(), <span class="string">"{input}"</span>);
<a href=#478 id=478 data-nosnippet>478</a> }
<a href=#479 id=479 data-nosnippet>479</a> }
<a href=#480 id=480 data-nosnippet>480</a>
<a href=#481 id=481 data-nosnippet>481</a> <span class="attr">#[test]
<a href=#482 id=482 data-nosnippet>482</a> </span><span class="kw">fn </span>test_v2_jsonb_to_serde_json_escaped_keys()
<a href=#483 id=483 data-nosnippet>483</a> -&gt; std::result::Result&lt;(), Box&lt;<span class="kw">dyn </span>std::error::Error&gt;&gt; {
<a href=#484 id=484 data-nosnippet>484</a> <span class="kw">let </span>expected = <span class="macro">serde_json::json!</span>({<span class="string">""</span>: <span class="number">9</span>, <span class="string">"a\"b"</span>: {<span class="string">"a\\b"</span>: <span class="string">"\u{1f600}\n"</span>}});
<a href=#485 id=485 data-nosnippet>485</a> <span class="kw">let </span>input = expected.to_string();
<a href=#486 id=486 data-nosnippet>486</a> <span class="kw">let </span>value = jsonb::parse_value(input.as_bytes()).map_err(|e| e.to_string())<span class="question-mark">?</span>;
<a href=#487 id=487 data-nosnippet>487</a> <span class="macro">assert_eq!</span>(jsonb_to_serde_json(<span class="kw-2">&amp;</span>value.to_vec())<span class="question-mark">?</span>, expected);
<a href=#488 id=488 data-nosnippet>488</a> <span class="prelude-val">Ok</span>(())
<a href=#489 id=489 data-nosnippet>489</a> }
<a href=#490 id=490 data-nosnippet>490</a>
<a href=#491 id=491 data-nosnippet>491</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#492 id=492 data-nosnippet>492</a>
<a href=#493 id=493 data-nosnippet>493</a> <span class="attr">#[test]
<a href=#494 id=494 data-nosnippet>494</a> </span><span class="kw">fn </span>test_fix_unicode_point() -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#495 id=495 data-nosnippet>495</a> <span class="kw">let </span>valid_cases = <span class="macro">vec!</span>[
<a href=#496 id=496 data-nosnippet>496</a> (<span class="string">r#"{"data": "simple ascii"}"#</span>, <span class="string">r#"{"data": "simple ascii"}"#</span>),
<a href=#497 id=497 data-nosnippet>497</a> (
<a href=#498 id=498 data-nosnippet>498</a> <span class="string">r#"{"data":"Greek sigma: \u{03a3}"}"#</span>,
<a href=#499 id=499 data-nosnippet>499</a> <span class="string">r#"{"data":"Greek sigma: \u03A3"}"#</span>,
<a href=#500 id=500 data-nosnippet>500</a> ),
<a href=#501 id=501 data-nosnippet>501</a> (
<a href=#502 id=502 data-nosnippet>502</a> <span class="string">r#"{"data":"Joker card: \u{1f0df}"}"#</span>,
<a href=#503 id=503 data-nosnippet>503</a> <span class="string">r#"{"data":"Joker card: \uD83C\uDCDF"}"#</span>,
<a href=#504 id=504 data-nosnippet>504</a> ),
<a href=#505 id=505 data-nosnippet>505</a> (
<a href=#506 id=506 data-nosnippet>506</a> <span class="string">r#"{"data":"BMP boundary: \u{ffff}"}"#</span>,
<a href=#507 id=507 data-nosnippet>507</a> <span class="string">r#"{"data":"BMP boundary: \uFFFF"}"#</span>,
<a href=#508 id=508 data-nosnippet>508</a> ),
<a href=#509 id=509 data-nosnippet>509</a> (
<a href=#510 id=510 data-nosnippet>510</a> <span class="string">r#"{"data":"Supplementary min: \u{10000}"}"#</span>,
<a href=#511 id=511 data-nosnippet>511</a> <span class="string">r#"{"data":"Supplementary min: \uD800\uDC00"}"#</span>,
<a href=#512 id=512 data-nosnippet>512</a> ),
<a href=#513 id=513 data-nosnippet>513</a> (
<a href=#514 id=514 data-nosnippet>514</a> <span class="string">r#"{"data":"Supplementary max: \u{10ffff}"}"#</span>,
<a href=#515 id=515 data-nosnippet>515</a> <span class="string">r#"{"data":"Supplementary max: \uDBFF\uDFFF"}"#</span>,
<a href=#516 id=516 data-nosnippet>516</a> ),
<a href=#517 id=517 data-nosnippet>517</a> ];
<a href=#518 id=518 data-nosnippet>518</a> <span class="kw">for </span>(input, expect) <span class="kw">in </span>valid_cases {
<a href=#519 id=519 data-nosnippet>519</a> <span class="kw">let </span>v = fix_unicode_point(input)<span class="question-mark">?</span>;
<a href=#520 id=520 data-nosnippet>520</a> <span class="macro">assert_eq!</span>(v, expect);
<a href=#521 id=521 data-nosnippet>521</a> }
<a href=#522 id=522 data-nosnippet>522</a>
<a href=#523 id=523 data-nosnippet>523</a> <span class="kw">let </span>invalid_escape_cases = <span class="macro">vec!</span>[
<a href=#524 id=524 data-nosnippet>524</a> (
<a href=#525 id=525 data-nosnippet>525</a> <span class="string">r#"{"data": "Invalid hex: \u{gggg}"}"#</span>,
<a href=#526 id=526 data-nosnippet>526</a> <span class="string">r#"{"data": "Invalid hex: \u{gggg}"}"#</span>,
<a href=#527 id=527 data-nosnippet>527</a> ),
<a href=#528 id=528 data-nosnippet>528</a> (
<a href=#529 id=529 data-nosnippet>529</a> <span class="string">r#"{"data": "Empty braces: \u{}"}"#</span>,
<a href=#530 id=530 data-nosnippet>530</a> <span class="string">r#"{"data": "Empty braces: \u{}"}"#</span>,
<a href=#531 id=531 data-nosnippet>531</a> ),
<a href=#532 id=532 data-nosnippet>532</a> (
<a href=#533 id=533 data-nosnippet>533</a> <span class="string">r#"{"data": "Out of range: \u{1100000}"}"#</span>,
<a href=#534 id=534 data-nosnippet>534</a> <span class="string">r#"{"data": "Out of range: \u{1100000}"}"#</span>,
<a href=#535 id=535 data-nosnippet>535</a> ),
<a href=#536 id=536 data-nosnippet>536</a> ];
<a href=#537 id=537 data-nosnippet>537</a> <span class="kw">for </span>(input, expect) <span class="kw">in </span>invalid_escape_cases {
<a href=#538 id=538 data-nosnippet>538</a> <span class="kw">let </span>v = fix_unicode_point(input)<span class="question-mark">?</span>;
<a href=#539 id=539 data-nosnippet>539</a> <span class="macro">assert_eq!</span>(v, expect);
<a href=#540 id=540 data-nosnippet>540</a> }
<a href=#541 id=541 data-nosnippet>541</a>
<a href=#542 id=542 data-nosnippet>542</a> <span class="prelude-val">Ok</span>(())
<a href=#543 id=543 data-nosnippet>543</a> }
<a href=#544 id=544 data-nosnippet>544</a>
<a href=#545 id=545 data-nosnippet>545</a> <span class="attr">#[test]
<a href=#546 id=546 data-nosnippet>546</a> </span><span class="kw">fn </span>test_json_type_include() {
<a href=#547 id=547 data-nosnippet>547</a> <span class="kw">fn </span>test(this: <span class="kw-2">&amp;</span>JsonNativeType, that: <span class="kw-2">&amp;</span>JsonNativeType, expected: bool) {
<a href=#548 id=548 data-nosnippet>548</a> <span class="macro">assert_eq!</span>(is_include(this, that), expected, <span class="string">"this={this}, that={that}"</span>);
<a href=#549 id=549 data-nosnippet>549</a> }
<a href=#550 id=550 data-nosnippet>550</a>
<a href=#551 id=551 data-nosnippet>551</a> test(<span class="kw-2">&amp;</span>JsonNativeType::Null, <span class="kw-2">&amp;</span>JsonNativeType::Null, <span class="bool-val">true</span>);
<a href=#552 id=552 data-nosnippet>552</a> test(<span class="kw-2">&amp;</span>JsonNativeType::Null, <span class="kw-2">&amp;</span>JsonNativeType::Bool, <span class="bool-val">false</span>);
<a href=#553 id=553 data-nosnippet>553</a> test(<span class="kw-2">&amp;</span>JsonNativeType::Bool, <span class="kw-2">&amp;</span>JsonNativeType::Null, <span class="bool-val">true</span>);
<a href=#554 id=554 data-nosnippet>554</a>
<a href=#555 id=555 data-nosnippet>555</a> test(<span class="kw-2">&amp;</span>JsonNativeType::Bool, <span class="kw-2">&amp;</span>JsonNativeType::Bool, <span class="bool-val">true</span>);
<a href=#556 id=556 data-nosnippet>556</a> test(<span class="kw-2">&amp;</span>JsonNativeType::Bool, <span class="kw-2">&amp;</span>JsonNativeType::u64(), <span class="bool-val">false</span>);
<a href=#557 id=557 data-nosnippet>557</a>
<a href=#558 id=558 data-nosnippet>558</a> test(<span class="kw-2">&amp;</span>JsonNativeType::u64(), <span class="kw-2">&amp;</span>JsonNativeType::Null, <span class="bool-val">true</span>);
<a href=#559 id=559 data-nosnippet>559</a> test(<span class="kw-2">&amp;</span>JsonNativeType::u64(), <span class="kw-2">&amp;</span>JsonNativeType::u64(), <span class="bool-val">true</span>);
<a href=#560 id=560 data-nosnippet>560</a> test(<span class="kw-2">&amp;</span>JsonNativeType::u64(), <span class="kw-2">&amp;</span>JsonNativeType::String, <span class="bool-val">false</span>);
<a href=#561 id=561 data-nosnippet>561</a>
<a href=#562 id=562 data-nosnippet>562</a> test(<span class="kw-2">&amp;</span>JsonNativeType::String, <span class="kw-2">&amp;</span>JsonNativeType::Null, <span class="bool-val">true</span>);
<a href=#563 id=563 data-nosnippet>563</a> test(<span class="kw-2">&amp;</span>JsonNativeType::String, <span class="kw-2">&amp;</span>JsonNativeType::String, <span class="bool-val">true</span>);
<a href=#564 id=564 data-nosnippet>564</a> test(
<a href=#565 id=565 data-nosnippet>565</a> <span class="kw-2">&amp;</span>JsonNativeType::String,
<a href=#566 id=566 data-nosnippet>566</a> <span class="kw-2">&amp;</span>JsonNativeType::Array(Box::new(JsonNativeType::f64())),
<a href=#567 id=567 data-nosnippet>567</a> <span class="bool-val">false</span>,
<a href=#568 id=568 data-nosnippet>568</a> );
<a href=#569 id=569 data-nosnippet>569</a>
<a href=#570 id=570 data-nosnippet>570</a> test(
<a href=#571 id=571 data-nosnippet>571</a> <span class="kw-2">&amp;</span>JsonNativeType::Array(Box::new(JsonNativeType::f64())),
<a href=#572 id=572 data-nosnippet>572</a> <span class="kw-2">&amp;</span>JsonNativeType::Null,
<a href=#573 id=573 data-nosnippet>573</a> <span class="bool-val">true</span>,
<a href=#574 id=574 data-nosnippet>574</a> );
<a href=#575 id=575 data-nosnippet>575</a> test(
<a href=#576 id=576 data-nosnippet>576</a> <span class="kw-2">&amp;</span>JsonNativeType::Array(Box::new(JsonNativeType::f64())),
<a href=#577 id=577 data-nosnippet>577</a> <span class="kw-2">&amp;</span>JsonNativeType::Array(Box::new(JsonNativeType::Null)),
<a href=#578 id=578 data-nosnippet>578</a> <span class="bool-val">true</span>,
<a href=#579 id=579 data-nosnippet>579</a> );
<a href=#580 id=580 data-nosnippet>580</a> test(
<a href=#581 id=581 data-nosnippet>581</a> <span class="kw-2">&amp;</span>JsonNativeType::Array(Box::new(JsonNativeType::f64())),
<a href=#582 id=582 data-nosnippet>582</a> <span class="kw-2">&amp;</span>JsonNativeType::Array(Box::new(JsonNativeType::f64())),
<a href=#583 id=583 data-nosnippet>583</a> <span class="bool-val">true</span>,
<a href=#584 id=584 data-nosnippet>584</a> );
<a href=#585 id=585 data-nosnippet>585</a> test(
<a href=#586 id=586 data-nosnippet>586</a> <span class="kw-2">&amp;</span>JsonNativeType::Array(Box::new(JsonNativeType::f64())),
<a href=#587 id=587 data-nosnippet>587</a> <span class="kw-2">&amp;</span>JsonNativeType::String,
<a href=#588 id=588 data-nosnippet>588</a> <span class="bool-val">false</span>,
<a href=#589 id=589 data-nosnippet>589</a> );
<a href=#590 id=590 data-nosnippet>590</a> test(
<a href=#591 id=591 data-nosnippet>591</a> <span class="kw-2">&amp;</span>JsonNativeType::Array(Box::new(JsonNativeType::f64())),
<a href=#592 id=592 data-nosnippet>592</a> <span class="kw-2">&amp;</span>JsonNativeType::Object(JsonObjectType::new()),
<a href=#593 id=593 data-nosnippet>593</a> <span class="bool-val">false</span>,
<a href=#594 id=594 data-nosnippet>594</a> );
<a href=#595 id=595 data-nosnippet>595</a>
<a href=#596 id=596 data-nosnippet>596</a> <span class="kw">let </span>simple_json_object = <span class="kw-2">&amp;</span>JsonNativeType::Object(JsonObjectType::from([(
<a href=#597 id=597 data-nosnippet>597</a> <span class="string">"foo"</span>.to_string(),
<a href=#598 id=598 data-nosnippet>598</a> JsonNativeType::String,
<a href=#599 id=599 data-nosnippet>599</a> )]));
<a href=#600 id=600 data-nosnippet>600</a> test(simple_json_object, simple_json_object, <span class="bool-val">true</span>);
<a href=#601 id=601 data-nosnippet>601</a> test(simple_json_object, <span class="kw-2">&amp;</span>JsonNativeType::i64(), <span class="bool-val">false</span>);
<a href=#602 id=602 data-nosnippet>602</a> test(
<a href=#603 id=603 data-nosnippet>603</a> simple_json_object,
<a href=#604 id=604 data-nosnippet>604</a> <span class="kw-2">&amp;</span>JsonNativeType::Object(JsonObjectType::from([(
<a href=#605 id=605 data-nosnippet>605</a> <span class="string">"bar"</span>.to_string(),
<a href=#606 id=606 data-nosnippet>606</a> JsonNativeType::i64(),
<a href=#607 id=607 data-nosnippet>607</a> )])),
<a href=#608 id=608 data-nosnippet>608</a> <span class="bool-val">false</span>,
<a href=#609 id=609 data-nosnippet>609</a> );
<a href=#610 id=610 data-nosnippet>610</a>
<a href=#611 id=611 data-nosnippet>611</a> <span class="kw">let </span>complex_json_object = <span class="kw-2">&amp;</span>JsonNativeType::Object(JsonObjectType::from([
<a href=#612 id=612 data-nosnippet>612</a> (
<a href=#613 id=613 data-nosnippet>613</a> <span class="string">"nested"</span>.to_string(),
<a href=#614 id=614 data-nosnippet>614</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#615 id=615 data-nosnippet>615</a> <span class="string">"a"</span>.to_string(),
<a href=#616 id=616 data-nosnippet>616</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#617 id=617 data-nosnippet>617</a> <span class="string">"b"</span>.to_string(),
<a href=#618 id=618 data-nosnippet>618</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#619 id=619 data-nosnippet>619</a> <span class="string">"c"</span>.to_string(),
<a href=#620 id=620 data-nosnippet>620</a> JsonNativeType::String,
<a href=#621 id=621 data-nosnippet>621</a> )])),
<a href=#622 id=622 data-nosnippet>622</a> )])),
<a href=#623 id=623 data-nosnippet>623</a> )])),
<a href=#624 id=624 data-nosnippet>624</a> ),
<a href=#625 id=625 data-nosnippet>625</a> (<span class="string">"bar"</span>.to_string(), JsonNativeType::i64()),
<a href=#626 id=626 data-nosnippet>626</a> ]));
<a href=#627 id=627 data-nosnippet>627</a> test(simple_json_object, <span class="kw-2">&amp;</span>JsonNativeType::Null, <span class="bool-val">true</span>);
<a href=#628 id=628 data-nosnippet>628</a> test(complex_json_object, <span class="kw-2">&amp;</span>JsonNativeType::String, <span class="bool-val">false</span>);
<a href=#629 id=629 data-nosnippet>629</a> test(complex_json_object, complex_json_object, <span class="bool-val">true</span>);
<a href=#630 id=630 data-nosnippet>630</a> test(
<a href=#631 id=631 data-nosnippet>631</a> complex_json_object,
<a href=#632 id=632 data-nosnippet>632</a> <span class="kw-2">&amp;</span>JsonNativeType::Object(JsonObjectType::from([(
<a href=#633 id=633 data-nosnippet>633</a> <span class="string">"bar"</span>.to_string(),
<a href=#634 id=634 data-nosnippet>634</a> JsonNativeType::i64(),
<a href=#635 id=635 data-nosnippet>635</a> )])),
<a href=#636 id=636 data-nosnippet>636</a> <span class="bool-val">true</span>,
<a href=#637 id=637 data-nosnippet>637</a> );
<a href=#638 id=638 data-nosnippet>638</a> test(
<a href=#639 id=639 data-nosnippet>639</a> complex_json_object,
<a href=#640 id=640 data-nosnippet>640</a> <span class="kw-2">&amp;</span>JsonNativeType::Object(JsonObjectType::from([
<a href=#641 id=641 data-nosnippet>641</a> (
<a href=#642 id=642 data-nosnippet>642</a> <span class="string">"nested"</span>.to_string(),
<a href=#643 id=643 data-nosnippet>643</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#644 id=644 data-nosnippet>644</a> <span class="string">"a"</span>.to_string(),
<a href=#645 id=645 data-nosnippet>645</a> JsonNativeType::Null,
<a href=#646 id=646 data-nosnippet>646</a> )])),
<a href=#647 id=647 data-nosnippet>647</a> ),
<a href=#648 id=648 data-nosnippet>648</a> (<span class="string">"bar"</span>.to_string(), JsonNativeType::i64()),
<a href=#649 id=649 data-nosnippet>649</a> ])),
<a href=#650 id=650 data-nosnippet>650</a> <span class="bool-val">true</span>,
<a href=#651 id=651 data-nosnippet>651</a> );
<a href=#652 id=652 data-nosnippet>652</a> test(
<a href=#653 id=653 data-nosnippet>653</a> complex_json_object,
<a href=#654 id=654 data-nosnippet>654</a> <span class="kw-2">&amp;</span>JsonNativeType::Object(JsonObjectType::from([
<a href=#655 id=655 data-nosnippet>655</a> (
<a href=#656 id=656 data-nosnippet>656</a> <span class="string">"nested"</span>.to_string(),
<a href=#657 id=657 data-nosnippet>657</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#658 id=658 data-nosnippet>658</a> <span class="string">"a"</span>.to_string(),
<a href=#659 id=659 data-nosnippet>659</a> JsonNativeType::String,
<a href=#660 id=660 data-nosnippet>660</a> )])),
<a href=#661 id=661 data-nosnippet>661</a> ),
<a href=#662 id=662 data-nosnippet>662</a> (<span class="string">"bar"</span>.to_string(), JsonNativeType::i64()),
<a href=#663 id=663 data-nosnippet>663</a> ])),
<a href=#664 id=664 data-nosnippet>664</a> <span class="bool-val">false</span>,
<a href=#665 id=665 data-nosnippet>665</a> );
<a href=#666 id=666 data-nosnippet>666</a> test(
<a href=#667 id=667 data-nosnippet>667</a> complex_json_object,
<a href=#668 id=668 data-nosnippet>668</a> <span class="kw-2">&amp;</span>JsonNativeType::Object(JsonObjectType::from([
<a href=#669 id=669 data-nosnippet>669</a> (
<a href=#670 id=670 data-nosnippet>670</a> <span class="string">"nested"</span>.to_string(),
<a href=#671 id=671 data-nosnippet>671</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#672 id=672 data-nosnippet>672</a> <span class="string">"a"</span>.to_string(),
<a href=#673 id=673 data-nosnippet>673</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#674 id=674 data-nosnippet>674</a> <span class="string">"b"</span>.to_string(),
<a href=#675 id=675 data-nosnippet>675</a> JsonNativeType::String,
<a href=#676 id=676 data-nosnippet>676</a> )])),
<a href=#677 id=677 data-nosnippet>677</a> )])),
<a href=#678 id=678 data-nosnippet>678</a> ),
<a href=#679 id=679 data-nosnippet>679</a> (<span class="string">"bar"</span>.to_string(), JsonNativeType::i64()),
<a href=#680 id=680 data-nosnippet>680</a> ])),
<a href=#681 id=681 data-nosnippet>681</a> <span class="bool-val">false</span>,
<a href=#682 id=682 data-nosnippet>682</a> );
<a href=#683 id=683 data-nosnippet>683</a> test(
<a href=#684 id=684 data-nosnippet>684</a> complex_json_object,
<a href=#685 id=685 data-nosnippet>685</a> <span class="kw-2">&amp;</span>JsonNativeType::Object(JsonObjectType::from([
<a href=#686 id=686 data-nosnippet>686</a> (
<a href=#687 id=687 data-nosnippet>687</a> <span class="string">"nested"</span>.to_string(),
<a href=#688 id=688 data-nosnippet>688</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#689 id=689 data-nosnippet>689</a> <span class="string">"a"</span>.to_string(),
<a href=#690 id=690 data-nosnippet>690</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#691 id=691 data-nosnippet>691</a> <span class="string">"b"</span>.to_string(),
<a href=#692 id=692 data-nosnippet>692</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#693 id=693 data-nosnippet>693</a> <span class="string">"c"</span>.to_string(),
<a href=#694 id=694 data-nosnippet>694</a> JsonNativeType::Null,
<a href=#695 id=695 data-nosnippet>695</a> )])),
<a href=#696 id=696 data-nosnippet>696</a> )])),
<a href=#697 id=697 data-nosnippet>697</a> )])),
<a href=#698 id=698 data-nosnippet>698</a> ),
<a href=#699 id=699 data-nosnippet>699</a> (<span class="string">"bar"</span>.to_string(), JsonNativeType::i64()),
<a href=#700 id=700 data-nosnippet>700</a> ])),
<a href=#701 id=701 data-nosnippet>701</a> <span class="bool-val">true</span>,
<a href=#702 id=702 data-nosnippet>702</a> );
<a href=#703 id=703 data-nosnippet>703</a> test(
<a href=#704 id=704 data-nosnippet>704</a> complex_json_object,
<a href=#705 id=705 data-nosnippet>705</a> <span class="kw-2">&amp;</span>JsonNativeType::Object(JsonObjectType::from([
<a href=#706 id=706 data-nosnippet>706</a> (
<a href=#707 id=707 data-nosnippet>707</a> <span class="string">"nested"</span>.to_string(),
<a href=#708 id=708 data-nosnippet>708</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#709 id=709 data-nosnippet>709</a> <span class="string">"a"</span>.to_string(),
<a href=#710 id=710 data-nosnippet>710</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#711 id=711 data-nosnippet>711</a> <span class="string">"b"</span>.to_string(),
<a href=#712 id=712 data-nosnippet>712</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#713 id=713 data-nosnippet>713</a> <span class="string">"c"</span>.to_string(),
<a href=#714 id=714 data-nosnippet>714</a> JsonNativeType::Bool,
<a href=#715 id=715 data-nosnippet>715</a> )])),
<a href=#716 id=716 data-nosnippet>716</a> )])),
<a href=#717 id=717 data-nosnippet>717</a> )])),
<a href=#718 id=718 data-nosnippet>718</a> ),
<a href=#719 id=719 data-nosnippet>719</a> (<span class="string">"bar"</span>.to_string(), JsonNativeType::i64()),
<a href=#720 id=720 data-nosnippet>720</a> ])),
<a href=#721 id=721 data-nosnippet>721</a> <span class="bool-val">false</span>,
<a href=#722 id=722 data-nosnippet>722</a> );
<a href=#723 id=723 data-nosnippet>723</a> test(
<a href=#724 id=724 data-nosnippet>724</a> complex_json_object,
<a href=#725 id=725 data-nosnippet>725</a> <span class="kw-2">&amp;</span>JsonNativeType::Object(JsonObjectType::from([(
<a href=#726 id=726 data-nosnippet>726</a> <span class="string">"nested"</span>.to_string(),
<a href=#727 id=727 data-nosnippet>727</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#728 id=728 data-nosnippet>728</a> <span class="string">"a"</span>.to_string(),
<a href=#729 id=729 data-nosnippet>729</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#730 id=730 data-nosnippet>730</a> <span class="string">"b"</span>.to_string(),
<a href=#731 id=731 data-nosnippet>731</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#732 id=732 data-nosnippet>732</a> <span class="string">"c"</span>.to_string(),
<a href=#733 id=733 data-nosnippet>733</a> JsonNativeType::String,
<a href=#734 id=734 data-nosnippet>734</a> )])),
<a href=#735 id=735 data-nosnippet>735</a> )])),
<a href=#736 id=736 data-nosnippet>736</a> )])),
<a href=#737 id=737 data-nosnippet>737</a> )])),
<a href=#738 id=738 data-nosnippet>738</a> <span class="bool-val">true</span>,
<a href=#739 id=739 data-nosnippet>739</a> );
<a href=#740 id=740 data-nosnippet>740</a> }
<a href=#741 id=741 data-nosnippet>741</a>
<a href=#742 id=742 data-nosnippet>742</a> <span class="attr">#[test]
<a href=#743 id=743 data-nosnippet>743</a> </span><span class="kw">fn </span>test_merge_json_type() {
<a href=#744 id=744 data-nosnippet>744</a> <span class="kw">fn </span>test(other: JsonNativeType, json_type: <span class="kw-2">&amp;mut </span>JsonNativeType, expected: <span class="kw-2">&amp;</span>str) {
<a href=#745 id=745 data-nosnippet>745</a> json_type.merge(<span class="kw-2">&amp;</span>other);
<a href=#746 id=746 data-nosnippet>746</a> <span class="macro">assert_eq!</span>(json_type.to_string(), expected);
<a href=#747 id=747 data-nosnippet>747</a> }
<a href=#748 id=748 data-nosnippet>748</a>
<a href=#749 id=749 data-nosnippet>749</a> <span class="comment">// Null should be absorbed by a concrete scalar type.
<a href=#750 id=750 data-nosnippet>750</a> </span>test(
<a href=#751 id=751 data-nosnippet>751</a> JsonNativeType::Bool,
<a href=#752 id=752 data-nosnippet>752</a> <span class="kw-2">&amp;mut </span>JsonNativeType::Null,
<a href=#753 id=753 data-nosnippet>753</a> <span class="string">r#""&lt;Bool&gt;""#</span>,
<a href=#754 id=754 data-nosnippet>754</a> );
<a href=#755 id=755 data-nosnippet>755</a>
<a href=#756 id=756 data-nosnippet>756</a> <span class="comment">// Merging a null value into an existing concrete type should keep the type unchanged.
<a href=#757 id=757 data-nosnippet>757</a> </span>test(
<a href=#758 id=758 data-nosnippet>758</a> JsonNativeType::Null,
<a href=#759 id=759 data-nosnippet>759</a> <span class="kw-2">&amp;mut </span>JsonNativeType::Bool,
<a href=#760 id=760 data-nosnippet>760</a> <span class="string">r#""&lt;Bool&gt;""#</span>,
<a href=#761 id=761 data-nosnippet>761</a> );
<a href=#762 id=762 data-nosnippet>762</a>
<a href=#763 id=763 data-nosnippet>763</a> <span class="comment">// Identical number categories should stay as Number.
<a href=#764 id=764 data-nosnippet>764</a> </span>test(
<a href=#765 id=765 data-nosnippet>765</a> JsonNativeType::i64(),
<a href=#766 id=766 data-nosnippet>766</a> <span class="kw-2">&amp;mut </span>JsonNativeType::i64(),
<a href=#767 id=767 data-nosnippet>767</a> <span class="string">r#""&lt;Number&gt;""#</span>,
<a href=#768 id=768 data-nosnippet>768</a> );
<a href=#769 id=769 data-nosnippet>769</a>
<a href=#770 id=770 data-nosnippet>770</a> <span class="comment">// Conflicting number categories should be lifted to Variant.
<a href=#771 id=771 data-nosnippet>771</a> </span><span class="kw">for </span>(<span class="kw-2">mut </span>this, other) <span class="kw">in </span>[
<a href=#772 id=772 data-nosnippet>772</a> (JsonNativeType::u64(), JsonNativeType::i64()),
<a href=#773 id=773 data-nosnippet>773</a> (JsonNativeType::u64(), JsonNativeType::f64()),
<a href=#774 id=774 data-nosnippet>774</a> (JsonNativeType::i64(), JsonNativeType::f64()),
<a href=#775 id=775 data-nosnippet>775</a> ] {
<a href=#776 id=776 data-nosnippet>776</a> test(other, <span class="kw-2">&amp;mut </span>this, <span class="string">r#""&lt;Variant&gt;""#</span>);
<a href=#777 id=777 data-nosnippet>777</a> }
<a href=#778 id=778 data-nosnippet>778</a>
<a href=#779 id=779 data-nosnippet>779</a> <span class="comment">// Object merge should preserve existing fields and append missing fields.
<a href=#780 id=780 data-nosnippet>780</a> </span>test(
<a href=#781 id=781 data-nosnippet>781</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#782 id=782 data-nosnippet>782</a> <span class="string">"foo"</span>.to_string(),
<a href=#783 id=783 data-nosnippet>783</a> JsonNativeType::String,
<a href=#784 id=784 data-nosnippet>784</a> )])),
<a href=#785 id=785 data-nosnippet>785</a> <span class="kw-2">&amp;mut </span>JsonNativeType::Object(JsonObjectType::from([(
<a href=#786 id=786 data-nosnippet>786</a> <span class="string">"bar"</span>.to_string(),
<a href=#787 id=787 data-nosnippet>787</a> JsonNativeType::i64(),
<a href=#788 id=788 data-nosnippet>788</a> )])),
<a href=#789 id=789 data-nosnippet>789</a> <span class="string">r#"{"bar":"&lt;Number&gt;","foo":"&lt;String&gt;"}"#</span>,
<a href=#790 id=790 data-nosnippet>790</a> );
<a href=#791 id=791 data-nosnippet>791</a>
<a href=#792 id=792 data-nosnippet>792</a> <span class="comment">// Conflicting object field types should only lift that field to Variant.
<a href=#793 id=793 data-nosnippet>793</a> </span>test(
<a href=#794 id=794 data-nosnippet>794</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#795 id=795 data-nosnippet>795</a> <span class="string">"foo"</span>.to_string(),
<a href=#796 id=796 data-nosnippet>796</a> JsonNativeType::i64(),
<a href=#797 id=797 data-nosnippet>797</a> )])),
<a href=#798 id=798 data-nosnippet>798</a> <span class="kw-2">&amp;mut </span>JsonNativeType::Object(JsonObjectType::from([(
<a href=#799 id=799 data-nosnippet>799</a> <span class="string">"foo"</span>.to_string(),
<a href=#800 id=800 data-nosnippet>800</a> JsonNativeType::Bool,
<a href=#801 id=801 data-nosnippet>801</a> )])),
<a href=#802 id=802 data-nosnippet>802</a> <span class="string">r#"{"foo":"&lt;Variant&gt;"}"#</span>,
<a href=#803 id=803 data-nosnippet>803</a> );
<a href=#804 id=804 data-nosnippet>804</a>
<a href=#805 id=805 data-nosnippet>805</a> <span class="comment">// Nested objects should merge recursively.
<a href=#806 id=806 data-nosnippet>806</a> </span>test(
<a href=#807 id=807 data-nosnippet>807</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#808 id=808 data-nosnippet>808</a> <span class="string">"nested"</span>.to_string(),
<a href=#809 id=809 data-nosnippet>809</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#810 id=810 data-nosnippet>810</a> <span class="string">"foo"</span>.to_string(),
<a href=#811 id=811 data-nosnippet>811</a> JsonNativeType::String,
<a href=#812 id=812 data-nosnippet>812</a> )])),
<a href=#813 id=813 data-nosnippet>813</a> )])),
<a href=#814 id=814 data-nosnippet>814</a> <span class="kw-2">&amp;mut </span>JsonNativeType::Object(JsonObjectType::from([(
<a href=#815 id=815 data-nosnippet>815</a> <span class="string">"nested"</span>.to_string(),
<a href=#816 id=816 data-nosnippet>816</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#817 id=817 data-nosnippet>817</a> <span class="string">"bar"</span>.to_string(),
<a href=#818 id=818 data-nosnippet>818</a> JsonNativeType::Bool,
<a href=#819 id=819 data-nosnippet>819</a> )])),
<a href=#820 id=820 data-nosnippet>820</a> )])),
<a href=#821 id=821 data-nosnippet>821</a> <span class="string">r#"{"nested":{"bar":"&lt;Bool&gt;","foo":"&lt;String&gt;"}}"#</span>,
<a href=#822 id=822 data-nosnippet>822</a> );
<a href=#823 id=823 data-nosnippet>823</a>
<a href=#824 id=824 data-nosnippet>824</a> <span class="comment">// Arrays should merge their element types recursively.
<a href=#825 id=825 data-nosnippet>825</a> </span>test(
<a href=#826 id=826 data-nosnippet>826</a> JsonNativeType::Array(Box::new(JsonNativeType::String)),
<a href=#827 id=827 data-nosnippet>827</a> <span class="kw-2">&amp;mut </span>JsonNativeType::Array(Box::new(JsonNativeType::u64())),
<a href=#828 id=828 data-nosnippet>828</a> <span class="string">r#"["&lt;Variant&gt;"]"#</span>,
<a href=#829 id=829 data-nosnippet>829</a> );
<a href=#830 id=830 data-nosnippet>830</a>
<a href=#831 id=831 data-nosnippet>831</a> <span class="comment">// Root-level incompatible types should be lifted to Variant.
<a href=#832 id=832 data-nosnippet>832</a> </span>test(
<a href=#833 id=833 data-nosnippet>833</a> JsonNativeType::Object(JsonObjectType::from([(
<a href=#834 id=834 data-nosnippet>834</a> <span class="string">"foo"</span>.to_string(),
<a href=#835 id=835 data-nosnippet>835</a> JsonNativeType::String,
<a href=#836 id=836 data-nosnippet>836</a> )])),
<a href=#837 id=837 data-nosnippet>837</a> <span class="kw-2">&amp;mut </span>JsonNativeType::Bool,
<a href=#838 id=838 data-nosnippet>838</a> <span class="string">r#""&lt;Variant&gt;""#</span>,
<a href=#839 id=839 data-nosnippet>839</a> );
<a href=#840 id=840 data-nosnippet>840</a> }
<a href=#841 id=841 data-nosnippet>841</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/list_type.rs`."><title>list_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>list_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::sync::Arc;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>arrow::datatypes::{DataType <span class="kw">as </span>ArrowDataType, Field};
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span><span class="kw">crate</span>::data_type::{ConcreteDataType, DataType};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::type_id::LogicalTypeId;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::value::{ListValue, Value};
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{ListVectorBuilder, MutableVector};
<a href=#24 id=24 data-nosnippet>24</a>
<a href=#25 id=25 data-nosnippet>25</a><span class="doccomment">/// Used to represent the List datatype.
<a href=#26 id=26 data-nosnippet>26</a></span><span class="attr">#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#27 id=27 data-nosnippet>27</a></span><span class="kw">pub struct </span>ListType {
<a href=#28 id=28 data-nosnippet>28</a> <span class="doccomment">/// The type of List's item.
<a href=#29 id=29 data-nosnippet>29</a> </span>item_type: Arc&lt;ConcreteDataType&gt;,
<a href=#30 id=30 data-nosnippet>30</a>}
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">impl </span>Default <span class="kw">for </span>ListType {
<a href=#33 id=33 data-nosnippet>33</a> <span class="kw">fn </span>default() -&gt; <span class="self">Self </span>{
<a href=#34 id=34 data-nosnippet>34</a> ListType::new(Arc::new(ConcreteDataType::null_datatype()))
<a href=#35 id=35 data-nosnippet>35</a> }
<a href=#36 id=36 data-nosnippet>36</a>}
<a href=#37 id=37 data-nosnippet>37</a>
<a href=#38 id=38 data-nosnippet>38</a><span class="kw">impl </span>ListType {
<a href=#39 id=39 data-nosnippet>39</a> <span class="doccomment">/// Create a new `ListType` whose item's data type is `item_type`.
<a href=#40 id=40 data-nosnippet>40</a> </span><span class="kw">pub fn </span>new(item_type: Arc&lt;ConcreteDataType&gt;) -&gt; <span class="self">Self </span>{
<a href=#41 id=41 data-nosnippet>41</a> ListType { item_type }
<a href=#42 id=42 data-nosnippet>42</a> }
<a href=#43 id=43 data-nosnippet>43</a>
<a href=#44 id=44 data-nosnippet>44</a> <span class="doccomment">/// Returns the item data type.
<a href=#45 id=45 data-nosnippet>45</a> </span><span class="attr">#[inline]
<a href=#46 id=46 data-nosnippet>46</a> </span><span class="kw">pub fn </span>item_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>ConcreteDataType {
<a href=#47 id=47 data-nosnippet>47</a> <span class="kw-2">&amp;</span><span class="self">self</span>.item_type
<a href=#48 id=48 data-nosnippet>48</a> }
<a href=#49 id=49 data-nosnippet>49</a>}
<a href=#50 id=50 data-nosnippet>50</a>
<a href=#51 id=51 data-nosnippet>51</a><span class="kw">impl </span>DataType <span class="kw">for </span>ListType {
<a href=#52 id=52 data-nosnippet>52</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#53 id=53 data-nosnippet>53</a> <span class="macro">format!</span>(<span class="string">"List&lt;{}&gt;"</span>, <span class="self">self</span>.item_type.name())
<a href=#54 id=54 data-nosnippet>54</a> }
<a href=#55 id=55 data-nosnippet>55</a>
<a href=#56 id=56 data-nosnippet>56</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#57 id=57 data-nosnippet>57</a> LogicalTypeId::List
<a href=#58 id=58 data-nosnippet>58</a> }
<a href=#59 id=59 data-nosnippet>59</a>
<a href=#60 id=60 data-nosnippet>60</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#61 id=61 data-nosnippet>61</a> Value::List(ListValue::new(<span class="macro">vec!</span>[], <span class="self">self</span>.item_type.clone()))
<a href=#62 id=62 data-nosnippet>62</a> }
<a href=#63 id=63 data-nosnippet>63</a>
<a href=#64 id=64 data-nosnippet>64</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#65 id=65 data-nosnippet>65</a> <span class="kw">let </span>field = Arc::new(Field::new(
<a href=#66 id=66 data-nosnippet>66</a> Field::LIST_FIELD_DEFAULT_NAME,
<a href=#67 id=67 data-nosnippet>67</a> <span class="self">self</span>.item_type.as_arrow_type(),
<a href=#68 id=68 data-nosnippet>68</a> <span class="bool-val">true</span>,
<a href=#69 id=69 data-nosnippet>69</a> ));
<a href=#70 id=70 data-nosnippet>70</a> ArrowDataType::List(field)
<a href=#71 id=71 data-nosnippet>71</a> }
<a href=#72 id=72 data-nosnippet>72</a>
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#74 id=74 data-nosnippet>74</a> Box::new(ListVectorBuilder::with_type_capacity(
<a href=#75 id=75 data-nosnippet>75</a> <span class="self">self</span>.item_type.clone(),
<a href=#76 id=76 data-nosnippet>76</a> capacity,
<a href=#77 id=77 data-nosnippet>77</a> ))
<a href=#78 id=78 data-nosnippet>78</a> }
<a href=#79 id=79 data-nosnippet>79</a>
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#81 id=81 data-nosnippet>81</a> <span class="kw">match </span>from {
<a href=#82 id=82 data-nosnippet>82</a> Value::List(v) =&gt; <span class="prelude-val">Some</span>(Value::List(v)),
<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#84 id=84 data-nosnippet>84</a> }
<a href=#85 id=85 data-nosnippet>85</a> }
<a href=#86 id=86 data-nosnippet>86</a>}
<a href=#87 id=87 data-nosnippet>87</a>
<a href=#88 id=88 data-nosnippet>88</a><span class="attr">#[cfg(test)]
<a href=#89 id=89 data-nosnippet>89</a></span><span class="kw">mod </span>tests {
<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">use </span><span class="kw">crate</span>::value::ListValue;
<a href=#92 id=92 data-nosnippet>92</a>
<a href=#93 id=93 data-nosnippet>93</a> <span class="attr">#[test]
<a href=#94 id=94 data-nosnippet>94</a> </span><span class="kw">fn </span>test_list_type() {
<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">let </span>t = ListType::new(Arc::new(ConcreteDataType::boolean_datatype()));
<a href=#96 id=96 data-nosnippet>96</a> <span class="macro">assert_eq!</span>(<span class="string">"List&lt;Boolean&gt;"</span>, t.name());
<a href=#97 id=97 data-nosnippet>97</a> <span class="macro">assert_eq!</span>(LogicalTypeId::List, t.logical_type_id());
<a href=#98 id=98 data-nosnippet>98</a> <span class="macro">assert_eq!</span>(
<a href=#99 id=99 data-nosnippet>99</a> Value::List(ListValue::new(
<a href=#100 id=100 data-nosnippet>100</a> <span class="macro">vec!</span>[],
<a href=#101 id=101 data-nosnippet>101</a> Arc::new(ConcreteDataType::boolean_datatype())
<a href=#102 id=102 data-nosnippet>102</a> )),
<a href=#103 id=103 data-nosnippet>103</a> t.default_value()
<a href=#104 id=104 data-nosnippet>104</a> );
<a href=#105 id=105 data-nosnippet>105</a> <span class="macro">assert_eq!</span>(
<a href=#106 id=106 data-nosnippet>106</a> ArrowDataType::List(Arc::new(Field::new(<span class="string">"item"</span>, ArrowDataType::Boolean, <span class="bool-val">true</span>))),
<a href=#107 id=107 data-nosnippet>107</a> t.as_arrow_type()
<a href=#108 id=108 data-nosnippet>108</a> );
<a href=#109 id=109 data-nosnippet>109</a> <span class="macro">assert_eq!</span>(ConcreteDataType::boolean_datatype(), <span class="kw-2">*</span>t.item_type());
<a href=#110 id=110 data-nosnippet>110</a> }
<a href=#111 id=111 data-nosnippet>111</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/null_type.rs`."><title>null_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>null_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::sync::Arc;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>arrow::datatypes::DataType <span class="kw">as </span>ArrowDataType;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span><span class="kw">crate</span>::data_type::{DataType, DataTypeRef};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::type_id::LogicalTypeId;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{MutableVector, NullVectorBuilder};
<a href=#24 id=24 data-nosnippet>24</a>
<a href=#25 id=25 data-nosnippet>25</a><span class="attr">#[derive(Debug, Default, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#26 id=26 data-nosnippet>26</a></span><span class="kw">pub struct </span>NullType;
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">impl </span>NullType {
<a href=#29 id=29 data-nosnippet>29</a> <span class="kw">pub fn </span>arc() -&gt; DataTypeRef {
<a href=#30 id=30 data-nosnippet>30</a> Arc::new(NullType)
<a href=#31 id=31 data-nosnippet>31</a> }
<a href=#32 id=32 data-nosnippet>32</a>}
<a href=#33 id=33 data-nosnippet>33</a>
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">impl </span>DataType <span class="kw">for </span>NullType {
<a href=#35 id=35 data-nosnippet>35</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#36 id=36 data-nosnippet>36</a> <span class="string">"Null"</span>.to_string()
<a href=#37 id=37 data-nosnippet>37</a> }
<a href=#38 id=38 data-nosnippet>38</a>
<a href=#39 id=39 data-nosnippet>39</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#40 id=40 data-nosnippet>40</a> LogicalTypeId::Null
<a href=#41 id=41 data-nosnippet>41</a> }
<a href=#42 id=42 data-nosnippet>42</a>
<a href=#43 id=43 data-nosnippet>43</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#44 id=44 data-nosnippet>44</a> Value::Null
<a href=#45 id=45 data-nosnippet>45</a> }
<a href=#46 id=46 data-nosnippet>46</a>
<a href=#47 id=47 data-nosnippet>47</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#48 id=48 data-nosnippet>48</a> ArrowDataType::Null
<a href=#49 id=49 data-nosnippet>49</a> }
<a href=#50 id=50 data-nosnippet>50</a>
<a href=#51 id=51 data-nosnippet>51</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, _capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#52 id=52 data-nosnippet>52</a> Box::&lt;NullVectorBuilder&gt;::default()
<a href=#53 id=53 data-nosnippet>53</a> }
<a href=#54 id=54 data-nosnippet>54</a>
<a href=#55 id=55 data-nosnippet>55</a> <span class="comment">// Unconditional cast other type to Value::Null
<a href=#56 id=56 data-nosnippet>56</a> </span><span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, _from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#57 id=57 data-nosnippet>57</a> <span class="prelude-val">Some</span>(Value::Null)
<a href=#58 id=58 data-nosnippet>58</a> }
<a href=#59 id=59 data-nosnippet>59</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/primitive_type.rs`."><title>primitive_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>primitive_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::cmp::Ordering;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::fmt;
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>arrow::datatypes::{ArrowNativeType, ArrowPrimitiveType, DataType <span class="kw">as </span>ArrowDataType};
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>common_time::Date;
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>snafu::OptionExt;
<a href=#22 id=22 data-nosnippet>22</a>
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::data_type::{ConcreteDataType, DataType};
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, <span class="prelude-ty">Result</span>};
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::scalars::{Scalar, ScalarRef, ScalarVectorBuilder};
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::type_id::LogicalTypeId;
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::types::DateType;
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span><span class="kw">crate</span>::types::boolean_type::bool_to_numeric;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::value::{Value, ValueRef};
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{MutableVector, PrimitiveVector, PrimitiveVectorBuilder, Vector};
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="comment">// TODO(yingwen): Can we remove `Into&lt;serde_json::Value&gt;`?
<a href=#33 id=33 data-nosnippet>33</a></span><span class="doccomment">/// Represents the wrapper type that wraps a native type using the `newtype pattern`,
<a href=#34 id=34 data-nosnippet>34</a>/// such as [Date](`common_time::Date`) is a wrapper type for the underlying native
<a href=#35 id=35 data-nosnippet>35</a>/// type `i32`.
<a href=#36 id=36 data-nosnippet>36</a></span><span class="kw">pub trait </span>WrapperType:
<a href=#37 id=37 data-nosnippet>37</a> Copy
<a href=#38 id=38 data-nosnippet>38</a> + Send
<a href=#39 id=39 data-nosnippet>39</a> + Sync
<a href=#40 id=40 data-nosnippet>40</a> + fmt::Debug
<a href=#41 id=41 data-nosnippet>41</a> + <span class="kw">for</span>&lt;<span class="lifetime">'a</span>&gt; Scalar&lt;RefType&lt;<span class="lifetime">'a</span>&gt; = <span class="self">Self</span>&gt;
<a href=#42 id=42 data-nosnippet>42</a> + PartialEq
<a href=#43 id=43 data-nosnippet>43</a> + Into&lt;Value&gt;
<a href=#44 id=44 data-nosnippet>44</a> + Into&lt;ValueRef&lt;<span class="lifetime">'static</span>&gt;&gt;
<a href=#45 id=45 data-nosnippet>45</a> + Serialize
<a href=#46 id=46 data-nosnippet>46</a> + Into&lt;serde_json::Value&gt;
<a href=#47 id=47 data-nosnippet>47</a>{
<a href=#48 id=48 data-nosnippet>48</a> <span class="doccomment">/// Logical primitive type that this wrapper type belongs to.
<a href=#49 id=49 data-nosnippet>49</a> </span><span class="kw">type </span>LogicalType: LogicalPrimitiveType&lt;Wrapper = <span class="self">Self</span>, Native = <span class="self">Self</span>::Native&gt;;
<a href=#50 id=50 data-nosnippet>50</a> <span class="doccomment">/// The underlying native type.
<a href=#51 id=51 data-nosnippet>51</a> </span><span class="kw">type </span>Native: ArrowNativeType;
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a> <span class="doccomment">/// Convert native type into this wrapper type.
<a href=#54 id=54 data-nosnippet>54</a> </span><span class="kw">fn </span>from_native(value: <span class="self">Self</span>::Native) -&gt; <span class="self">Self</span>;
<a href=#55 id=55 data-nosnippet>55</a>
<a href=#56 id=56 data-nosnippet>56</a> <span class="doccomment">/// Convert this wrapper type into native type.
<a href=#57 id=57 data-nosnippet>57</a> </span><span class="kw">fn </span>into_native(<span class="self">self</span>) -&gt; <span class="self">Self</span>::Native;
<a href=#58 id=58 data-nosnippet>58</a>}
<a href=#59 id=59 data-nosnippet>59</a>
<a href=#60 id=60 data-nosnippet>60</a><span class="doccomment">/// Trait bridging the logical primitive type with [ArrowPrimitiveType].
<a href=#61 id=61 data-nosnippet>61</a></span><span class="kw">pub trait </span>LogicalPrimitiveType: <span class="lifetime">'static </span>+ Sized {
<a href=#62 id=62 data-nosnippet>62</a> <span class="doccomment">/// Arrow primitive type of this logical type.
<a href=#63 id=63 data-nosnippet>63</a> </span><span class="kw">type </span>ArrowPrimitive: ArrowPrimitiveType&lt;Native = <span class="self">Self</span>::Native&gt;;
<a href=#64 id=64 data-nosnippet>64</a> <span class="doccomment">/// Native (physical) type of this logical type.
<a href=#65 id=65 data-nosnippet>65</a> </span><span class="kw">type </span>Native: ArrowNativeType;
<a href=#66 id=66 data-nosnippet>66</a> <span class="doccomment">/// Wrapper type that the vector returns.
<a href=#67 id=67 data-nosnippet>67</a> </span><span class="kw">type </span>Wrapper: WrapperType&lt;LogicalType = <span class="self">Self</span>, Native = <span class="self">Self</span>::Native&gt;
<a href=#68 id=68 data-nosnippet>68</a> + <span class="kw">for</span>&lt;<span class="lifetime">'a</span>&gt; Scalar&lt;VectorType = PrimitiveVector&lt;<span class="self">Self</span>&gt;, RefType&lt;<span class="lifetime">'a</span>&gt; = <span class="self">Self</span>::Wrapper&gt;
<a href=#69 id=69 data-nosnippet>69</a> + <span class="kw">for</span>&lt;<span class="lifetime">'a</span>&gt; ScalarRef&lt;<span class="lifetime">'a</span>, ScalarType = <span class="self">Self</span>::Wrapper&gt;;
<a href=#70 id=70 data-nosnippet>70</a> <span class="doccomment">/// Largest type this primitive type can cast to.
<a href=#71 id=71 data-nosnippet>71</a> </span><span class="kw">type </span>LargestType: LogicalPrimitiveType;
<a href=#72 id=72 data-nosnippet>72</a>
<a href=#73 id=73 data-nosnippet>73</a> <span class="doccomment">/// Construct the data type struct.
<a href=#74 id=74 data-nosnippet>74</a> </span><span class="kw">fn </span>build_data_type() -&gt; ConcreteDataType;
<a href=#75 id=75 data-nosnippet>75</a>
<a href=#76 id=76 data-nosnippet>76</a> <span class="doccomment">/// Return the name of the type.
<a href=#77 id=77 data-nosnippet>77</a> </span><span class="kw">fn </span>type_name() -&gt; <span class="kw-2">&amp;</span><span class="lifetime">'static </span>str;
<a href=#78 id=78 data-nosnippet>78</a>
<a href=#79 id=79 data-nosnippet>79</a> <span class="doccomment">/// Dynamic cast the vector to the concrete vector type.
<a href=#80 id=80 data-nosnippet>80</a> </span><span class="kw">fn </span>cast_vector(vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="kw-2">&amp;</span>PrimitiveVector&lt;<span class="self">Self</span>&gt;&gt;;
<a href=#81 id=81 data-nosnippet>81</a>
<a href=#82 id=82 data-nosnippet>82</a> <span class="doccomment">/// Cast value ref to the primitive type.
<a href=#83 id=83 data-nosnippet>83</a> </span><span class="kw">fn </span>cast_value_ref(value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::Wrapper&gt;&gt;;
<a href=#84 id=84 data-nosnippet>84</a>}
<a href=#85 id=85 data-nosnippet>85</a>
<a href=#86 id=86 data-nosnippet>86</a><span class="doccomment">/// A new type for [WrapperType], complement the `Ord` feature for it.
<a href=#87 id=87 data-nosnippet>87</a>///
<a href=#88 id=88 data-nosnippet>88</a>/// Wrapping non ordered primitive types like `f32` and `f64` in `OrdPrimitive`
<a href=#89 id=89 data-nosnippet>89</a>/// can make them be used in places that require `Ord`. For example, in `Median` UDAFs.
<a href=#90 id=90 data-nosnippet>90</a></span><span class="attr">#[derive(Debug, Clone, Copy, PartialEq)]
<a href=#91 id=91 data-nosnippet>91</a></span><span class="kw">pub struct </span>OrdPrimitive&lt;T: WrapperType&gt;(<span class="kw">pub </span>T);
<a href=#92 id=92 data-nosnippet>92</a>
<a href=#93 id=93 data-nosnippet>93</a><span class="kw">impl</span>&lt;T: WrapperType&gt; OrdPrimitive&lt;T&gt; {
<a href=#94 id=94 data-nosnippet>94</a> <span class="kw">pub fn </span>as_primitive(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; T::Native {
<a href=#95 id=95 data-nosnippet>95</a> <span class="self">self</span>.<span class="number">0</span>.into_native()
<a href=#96 id=96 data-nosnippet>96</a> }
<a href=#97 id=97 data-nosnippet>97</a>}
<a href=#98 id=98 data-nosnippet>98</a>
<a href=#99 id=99 data-nosnippet>99</a><span class="kw">impl</span>&lt;T: WrapperType&gt; Eq <span class="kw">for </span>OrdPrimitive&lt;T&gt; {}
<a href=#100 id=100 data-nosnippet>100</a>
<a href=#101 id=101 data-nosnippet>101</a><span class="kw">impl</span>&lt;T: WrapperType&gt; PartialOrd <span class="kw">for </span>OrdPrimitive&lt;T&gt; {
<a href=#102 id=102 data-nosnippet>102</a> <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span><span class="self">Self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;Ordering&gt; {
<a href=#103 id=103 data-nosnippet>103</a> <span class="prelude-val">Some</span>(<span class="self">self</span>.cmp(other))
<a href=#104 id=104 data-nosnippet>104</a> }
<a href=#105 id=105 data-nosnippet>105</a>}
<a href=#106 id=106 data-nosnippet>106</a>
<a href=#107 id=107 data-nosnippet>107</a><span class="kw">impl</span>&lt;T: WrapperType&gt; Ord <span class="kw">for </span>OrdPrimitive&lt;T&gt; {
<a href=#108 id=108 data-nosnippet>108</a> <span class="kw">fn </span>cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span><span class="self">Self</span>) -&gt; Ordering {
<a href=#109 id=109 data-nosnippet>109</a> Into::&lt;Value&gt;::into(<span class="self">self</span>.<span class="number">0</span>).cmp(<span class="kw-2">&amp;</span>Into::&lt;Value&gt;::into(other.<span class="number">0</span>))
<a href=#110 id=110 data-nosnippet>110</a> }
<a href=#111 id=111 data-nosnippet>111</a>}
<a href=#112 id=112 data-nosnippet>112</a>
<a href=#113 id=113 data-nosnippet>113</a><span class="kw">impl</span>&lt;T: WrapperType&gt; From&lt;OrdPrimitive&lt;T&gt;&gt; <span class="kw">for </span>Value {
<a href=#114 id=114 data-nosnippet>114</a> <span class="kw">fn </span>from(p: OrdPrimitive&lt;T&gt;) -&gt; <span class="self">Self </span>{
<a href=#115 id=115 data-nosnippet>115</a> p.<span class="number">0</span>.into()
<a href=#116 id=116 data-nosnippet>116</a> }
<a href=#117 id=117 data-nosnippet>117</a>}
<a href=#118 id=118 data-nosnippet>118</a>
<a href=#119 id=119 data-nosnippet>119</a><span class="macro">macro_rules!</span> impl_wrapper {
<a href=#120 id=120 data-nosnippet>120</a> (<span class="macro-nonterminal">$Type</span>: ident, <span class="macro-nonterminal">$LogicalType</span>: ident) =&gt; {
<a href=#121 id=121 data-nosnippet>121</a> <span class="kw">impl </span>WrapperType <span class="kw">for </span><span class="macro-nonterminal">$Type </span>{
<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">type </span>LogicalType = <span class="macro-nonterminal">$LogicalType</span>;
<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">type </span>Native = <span class="macro-nonterminal">$Type</span>;
<a href=#124 id=124 data-nosnippet>124</a>
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">fn </span>from_native(value: <span class="self">Self</span>::Native) -&gt; <span class="self">Self </span>{
<a href=#126 id=126 data-nosnippet>126</a> value
<a href=#127 id=127 data-nosnippet>127</a> }
<a href=#128 id=128 data-nosnippet>128</a>
<a href=#129 id=129 data-nosnippet>129</a> <span class="kw">fn </span>into_native(<span class="self">self</span>) -&gt; <span class="self">Self</span>::Native {
<a href=#130 id=130 data-nosnippet>130</a> <span class="self">self
<a href=#131 id=131 data-nosnippet>131</a> </span>}
<a href=#132 id=132 data-nosnippet>132</a> }
<a href=#133 id=133 data-nosnippet>133</a> };
<a href=#134 id=134 data-nosnippet>134</a>}
<a href=#135 id=135 data-nosnippet>135</a>
<a href=#136 id=136 data-nosnippet>136</a><span class="macro">impl_wrapper!</span>(u8, UInt8Type);
<a href=#137 id=137 data-nosnippet>137</a><span class="macro">impl_wrapper!</span>(u16, UInt16Type);
<a href=#138 id=138 data-nosnippet>138</a><span class="macro">impl_wrapper!</span>(u32, UInt32Type);
<a href=#139 id=139 data-nosnippet>139</a><span class="macro">impl_wrapper!</span>(u64, UInt64Type);
<a href=#140 id=140 data-nosnippet>140</a><span class="macro">impl_wrapper!</span>(i8, Int8Type);
<a href=#141 id=141 data-nosnippet>141</a><span class="macro">impl_wrapper!</span>(i16, Int16Type);
<a href=#142 id=142 data-nosnippet>142</a><span class="macro">impl_wrapper!</span>(i32, Int32Type);
<a href=#143 id=143 data-nosnippet>143</a><span class="macro">impl_wrapper!</span>(i64, Int64Type);
<a href=#144 id=144 data-nosnippet>144</a><span class="macro">impl_wrapper!</span>(f32, Float32Type);
<a href=#145 id=145 data-nosnippet>145</a><span class="macro">impl_wrapper!</span>(f64, Float64Type);
<a href=#146 id=146 data-nosnippet>146</a>
<a href=#147 id=147 data-nosnippet>147</a><span class="kw">impl </span>WrapperType <span class="kw">for </span>Date {
<a href=#148 id=148 data-nosnippet>148</a> <span class="kw">type </span>LogicalType = DateType;
<a href=#149 id=149 data-nosnippet>149</a> <span class="kw">type </span>Native = i32;
<a href=#150 id=150 data-nosnippet>150</a>
<a href=#151 id=151 data-nosnippet>151</a> <span class="kw">fn </span>from_native(value: i32) -&gt; <span class="self">Self </span>{
<a href=#152 id=152 data-nosnippet>152</a> Date::new(value)
<a href=#153 id=153 data-nosnippet>153</a> }
<a href=#154 id=154 data-nosnippet>154</a>
<a href=#155 id=155 data-nosnippet>155</a> <span class="kw">fn </span>into_native(<span class="self">self</span>) -&gt; i32 {
<a href=#156 id=156 data-nosnippet>156</a> <span class="self">self</span>.val()
<a href=#157 id=157 data-nosnippet>157</a> }
<a href=#158 id=158 data-nosnippet>158</a>}
<a href=#159 id=159 data-nosnippet>159</a>
<a href=#160 id=160 data-nosnippet>160</a><span class="macro">macro_rules!</span> define_logical_primitive_type {
<a href=#161 id=161 data-nosnippet>161</a> (<span class="macro-nonterminal">$Native</span>: ident, <span class="macro-nonterminal">$TypeId</span>: ident, <span class="macro-nonterminal">$DataType</span>: ident, <span class="macro-nonterminal">$Largest</span>: ident) =&gt; {
<a href=#162 id=162 data-nosnippet>162</a> <span class="comment">// We need to define it as an empty struct `struct DataType {}` instead of a struct-unit
<a href=#163 id=163 data-nosnippet>163</a> // `struct DataType;` to ensure the serialized JSON string is compatible with previous
<a href=#164 id=164 data-nosnippet>164</a> // implementation.
<a href=#165 id=165 data-nosnippet>165</a> </span><span class="attr">#[derive(
<a href=#166 id=166 data-nosnippet>166</a> Debug, Clone, Default, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize,
<a href=#167 id=167 data-nosnippet>167</a> )]
<a href=#168 id=168 data-nosnippet>168</a> </span><span class="kw">pub struct </span><span class="macro-nonterminal">$DataType </span>{}
<a href=#169 id=169 data-nosnippet>169</a>
<a href=#170 id=170 data-nosnippet>170</a> <span class="kw">impl </span>LogicalPrimitiveType <span class="kw">for </span><span class="macro-nonterminal">$DataType </span>{
<a href=#171 id=171 data-nosnippet>171</a> <span class="kw">type </span>ArrowPrimitive = arrow::datatypes::<span class="macro-nonterminal">$DataType</span>;
<a href=#172 id=172 data-nosnippet>172</a> <span class="kw">type </span>Native = <span class="macro-nonterminal">$Native</span>;
<a href=#173 id=173 data-nosnippet>173</a> <span class="kw">type </span>Wrapper = <span class="macro-nonterminal">$Native</span>;
<a href=#174 id=174 data-nosnippet>174</a> <span class="kw">type </span>LargestType = <span class="macro-nonterminal">$Largest</span>;
<a href=#175 id=175 data-nosnippet>175</a>
<a href=#176 id=176 data-nosnippet>176</a> <span class="kw">fn </span>build_data_type() -&gt; ConcreteDataType {
<a href=#177 id=177 data-nosnippet>177</a> ConcreteDataType::<span class="macro-nonterminal">$TypeId</span>(<span class="macro-nonterminal">$DataType::default</span>())
<a href=#178 id=178 data-nosnippet>178</a> }
<a href=#179 id=179 data-nosnippet>179</a>
<a href=#180 id=180 data-nosnippet>180</a> <span class="kw">fn </span>type_name() -&gt; <span class="kw-2">&amp;</span><span class="lifetime">'static </span>str {
<a href=#181 id=181 data-nosnippet>181</a> <span class="macro">stringify!</span>(<span class="macro-nonterminal">$TypeId</span>)
<a href=#182 id=182 data-nosnippet>182</a> }
<a href=#183 id=183 data-nosnippet>183</a>
<a href=#184 id=184 data-nosnippet>184</a> <span class="kw">fn </span>cast_vector(vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="kw-2">&amp;</span>PrimitiveVector&lt;<span class="macro-nonterminal">$DataType</span>&gt;&gt; {
<a href=#185 id=185 data-nosnippet>185</a> vector
<a href=#186 id=186 data-nosnippet>186</a> .as_any()
<a href=#187 id=187 data-nosnippet>187</a> .downcast_ref::&lt;PrimitiveVector&lt;<span class="macro-nonterminal">$DataType</span>&gt;&gt;()
<a href=#188 id=188 data-nosnippet>188</a> .with_context(|| error::CastTypeSnafu {
<a href=#189 id=189 data-nosnippet>189</a> msg: <span class="macro">format!</span>(
<a href=#190 id=190 data-nosnippet>190</a> <span class="string">"Failed to cast {} to vector of primitive type {}"</span>,
<a href=#191 id=191 data-nosnippet>191</a> vector.vector_type_name(),
<a href=#192 id=192 data-nosnippet>192</a> <span class="macro">stringify!</span>(<span class="macro-nonterminal">$TypeId</span>)
<a href=#193 id=193 data-nosnippet>193</a> ),
<a href=#194 id=194 data-nosnippet>194</a> })
<a href=#195 id=195 data-nosnippet>195</a> }
<a href=#196 id=196 data-nosnippet>196</a>
<a href=#197 id=197 data-nosnippet>197</a> <span class="kw">fn </span>cast_value_ref(value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="prelude-ty">Option</span>&lt;<span class="macro-nonterminal">$Native</span>&gt;&gt; {
<a href=#198 id=198 data-nosnippet>198</a> <span class="kw">match </span>value {
<a href=#199 id=199 data-nosnippet>199</a> ValueRef::Null =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
<a href=#200 id=200 data-nosnippet>200</a> ValueRef::<span class="macro-nonterminal">$TypeId</span>(v) =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>((<span class="kw-2">*</span>v).into())),
<a href=#201 id=201 data-nosnippet>201</a> other =&gt; error::CastTypeSnafu {
<a href=#202 id=202 data-nosnippet>202</a> msg: <span class="macro">format!</span>(
<a href=#203 id=203 data-nosnippet>203</a> <span class="string">"Failed to cast value {:?} to primitive type {}"</span>,
<a href=#204 id=204 data-nosnippet>204</a> other,
<a href=#205 id=205 data-nosnippet>205</a> <span class="macro">stringify!</span>(<span class="macro-nonterminal">$TypeId</span>),
<a href=#206 id=206 data-nosnippet>206</a> ),
<a href=#207 id=207 data-nosnippet>207</a> }
<a href=#208 id=208 data-nosnippet>208</a> .fail(),
<a href=#209 id=209 data-nosnippet>209</a> }
<a href=#210 id=210 data-nosnippet>210</a> }
<a href=#211 id=211 data-nosnippet>211</a> }
<a href=#212 id=212 data-nosnippet>212</a> };
<a href=#213 id=213 data-nosnippet>213</a>}
<a href=#214 id=214 data-nosnippet>214</a>
<a href=#215 id=215 data-nosnippet>215</a><span class="macro">macro_rules!</span> define_non_timestamp_primitive {
<a href=#216 id=216 data-nosnippet>216</a> ( <span class="macro-nonterminal">$Native</span>: ident, <span class="macro-nonterminal">$TypeId</span>: ident, <span class="macro-nonterminal">$DataType</span>: ident, <span class="macro-nonterminal">$Largest</span>: ident $(, <span class="macro-nonterminal">$TargetType</span>: ident)* ) =&gt; {
<a href=#217 id=217 data-nosnippet>217</a> <span class="macro">define_logical_primitive_type!</span>(<span class="macro-nonterminal">$Native</span>, <span class="macro-nonterminal">$TypeId</span>, <span class="macro-nonterminal">$DataType</span>, <span class="macro-nonterminal">$Largest</span>);
<a href=#218 id=218 data-nosnippet>218</a>
<a href=#219 id=219 data-nosnippet>219</a> <span class="kw">impl </span>DataType <span class="kw">for </span><span class="macro-nonterminal">$DataType </span>{
<a href=#220 id=220 data-nosnippet>220</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#221 id=221 data-nosnippet>221</a> <span class="macro">stringify!</span>(<span class="macro-nonterminal">$TypeId</span>).to_string()
<a href=#222 id=222 data-nosnippet>222</a> }
<a href=#223 id=223 data-nosnippet>223</a>
<a href=#224 id=224 data-nosnippet>224</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#225 id=225 data-nosnippet>225</a> LogicalTypeId::<span class="macro-nonterminal">$TypeId
<a href=#226 id=226 data-nosnippet>226</a> </span>}
<a href=#227 id=227 data-nosnippet>227</a>
<a href=#228 id=228 data-nosnippet>228</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#229 id=229 data-nosnippet>229</a> <span class="macro-nonterminal">$Native::default</span>().into()
<a href=#230 id=230 data-nosnippet>230</a> }
<a href=#231 id=231 data-nosnippet>231</a>
<a href=#232 id=232 data-nosnippet>232</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#233 id=233 data-nosnippet>233</a> ArrowDataType::<span class="macro-nonterminal">$TypeId
<a href=#234 id=234 data-nosnippet>234</a> </span>}
<a href=#235 id=235 data-nosnippet>235</a>
<a href=#236 id=236 data-nosnippet>236</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#237 id=237 data-nosnippet>237</a> Box::new(PrimitiveVectorBuilder::&lt;<span class="macro-nonterminal">$DataType</span>&gt;::with_capacity(capacity))
<a href=#238 id=238 data-nosnippet>238</a> }
<a href=#239 id=239 data-nosnippet>239</a>
<a href=#240 id=240 data-nosnippet>240</a>
<a href=#241 id=241 data-nosnippet>241</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#242 id=242 data-nosnippet>242</a> <span class="kw">match </span>from {
<a href=#243 id=243 data-nosnippet>243</a> Value::Boolean(v) =&gt; bool_to_numeric(v).map(Value::<span class="macro-nonterminal">$TypeId</span>),
<a href=#244 id=244 data-nosnippet>244</a> Value::String(v) =&gt; v.as_utf8().parse::&lt;<span class="macro-nonterminal">$Native</span>&gt;().map(|val| Value::from(val)).ok(),
<a href=#245 id=245 data-nosnippet>245</a> $(
<a href=#246 id=246 data-nosnippet>246</a> Value::<span class="macro-nonterminal">$TargetType</span>(v) =&gt; num::cast::cast(v).map(Value::<span class="macro-nonterminal">$TypeId</span>),
<a href=#247 id=247 data-nosnippet>247</a> )*
<a href=#248 id=248 data-nosnippet>248</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#249 id=249 data-nosnippet>249</a> }
<a href=#250 id=250 data-nosnippet>250</a> }
<a href=#251 id=251 data-nosnippet>251</a> }
<a href=#252 id=252 data-nosnippet>252</a> };
<a href=#253 id=253 data-nosnippet>253</a>}
<a href=#254 id=254 data-nosnippet>254</a>
<a href=#255 id=255 data-nosnippet>255</a><span class="macro">define_non_timestamp_primitive!</span>(
<a href=#256 id=256 data-nosnippet>256</a> u8, UInt8, UInt8Type, UInt64Type, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64,
<a href=#257 id=257 data-nosnippet>257</a> Float32, Float64
<a href=#258 id=258 data-nosnippet>258</a>);
<a href=#259 id=259 data-nosnippet>259</a><span class="macro">define_non_timestamp_primitive!</span>(
<a href=#260 id=260 data-nosnippet>260</a> u16, UInt16, UInt16Type, UInt64Type, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64,
<a href=#261 id=261 data-nosnippet>261</a> Float32, Float64
<a href=#262 id=262 data-nosnippet>262</a>);
<a href=#263 id=263 data-nosnippet>263</a><span class="macro">define_non_timestamp_primitive!</span>(
<a href=#264 id=264 data-nosnippet>264</a> u32, UInt32, UInt32Type, UInt64Type, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64,
<a href=#265 id=265 data-nosnippet>265</a> Float32, Float64
<a href=#266 id=266 data-nosnippet>266</a>);
<a href=#267 id=267 data-nosnippet>267</a><span class="macro">define_non_timestamp_primitive!</span>(
<a href=#268 id=268 data-nosnippet>268</a> u64, UInt64, UInt64Type, UInt64Type, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64,
<a href=#269 id=269 data-nosnippet>269</a> Float32, Float64
<a href=#270 id=270 data-nosnippet>270</a>);
<a href=#271 id=271 data-nosnippet>271</a><span class="macro">define_non_timestamp_primitive!</span>(
<a href=#272 id=272 data-nosnippet>272</a> i8, Int8, Int8Type, Int64Type, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64,
<a href=#273 id=273 data-nosnippet>273</a> Float32, Float64
<a href=#274 id=274 data-nosnippet>274</a>);
<a href=#275 id=275 data-nosnippet>275</a><span class="macro">define_non_timestamp_primitive!</span>(
<a href=#276 id=276 data-nosnippet>276</a> i16, Int16, Int16Type, Int64Type, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64,
<a href=#277 id=277 data-nosnippet>277</a> Float32, Float64
<a href=#278 id=278 data-nosnippet>278</a>);
<a href=#279 id=279 data-nosnippet>279</a>
<a href=#280 id=280 data-nosnippet>280</a><span class="macro">define_non_timestamp_primitive!</span>(
<a href=#281 id=281 data-nosnippet>281</a> f32,
<a href=#282 id=282 data-nosnippet>282</a> Float32,
<a href=#283 id=283 data-nosnippet>283</a> Float32Type,
<a href=#284 id=284 data-nosnippet>284</a> Float64Type,
<a href=#285 id=285 data-nosnippet>285</a> Int8,
<a href=#286 id=286 data-nosnippet>286</a> Int16,
<a href=#287 id=287 data-nosnippet>287</a> Int32,
<a href=#288 id=288 data-nosnippet>288</a> Int64,
<a href=#289 id=289 data-nosnippet>289</a> UInt8,
<a href=#290 id=290 data-nosnippet>290</a> UInt16,
<a href=#291 id=291 data-nosnippet>291</a> UInt32,
<a href=#292 id=292 data-nosnippet>292</a> UInt64,
<a href=#293 id=293 data-nosnippet>293</a> Float32,
<a href=#294 id=294 data-nosnippet>294</a> Float64
<a href=#295 id=295 data-nosnippet>295</a>);
<a href=#296 id=296 data-nosnippet>296</a><span class="macro">define_non_timestamp_primitive!</span>(
<a href=#297 id=297 data-nosnippet>297</a> f64,
<a href=#298 id=298 data-nosnippet>298</a> Float64,
<a href=#299 id=299 data-nosnippet>299</a> Float64Type,
<a href=#300 id=300 data-nosnippet>300</a> Float64Type,
<a href=#301 id=301 data-nosnippet>301</a> Int8,
<a href=#302 id=302 data-nosnippet>302</a> Int16,
<a href=#303 id=303 data-nosnippet>303</a> Int32,
<a href=#304 id=304 data-nosnippet>304</a> Int64,
<a href=#305 id=305 data-nosnippet>305</a> UInt8,
<a href=#306 id=306 data-nosnippet>306</a> UInt16,
<a href=#307 id=307 data-nosnippet>307</a> UInt32,
<a href=#308 id=308 data-nosnippet>308</a> UInt64,
<a href=#309 id=309 data-nosnippet>309</a> Float32,
<a href=#310 id=310 data-nosnippet>310</a> Float64
<a href=#311 id=311 data-nosnippet>311</a>);
<a href=#312 id=312 data-nosnippet>312</a>
<a href=#313 id=313 data-nosnippet>313</a><span class="comment">// Timestamp primitive:
<a href=#314 id=314 data-nosnippet>314</a></span><span class="macro">define_logical_primitive_type!</span>(i64, Int64, Int64Type, Int64Type);
<a href=#315 id=315 data-nosnippet>315</a>
<a href=#316 id=316 data-nosnippet>316</a><span class="macro">define_logical_primitive_type!</span>(i32, Int32, Int32Type, Int64Type);
<a href=#317 id=317 data-nosnippet>317</a>
<a href=#318 id=318 data-nosnippet>318</a><span class="kw">impl </span>DataType <span class="kw">for </span>Int64Type {
<a href=#319 id=319 data-nosnippet>319</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#320 id=320 data-nosnippet>320</a> <span class="string">"Int64"</span>.to_string()
<a href=#321 id=321 data-nosnippet>321</a> }
<a href=#322 id=322 data-nosnippet>322</a>
<a href=#323 id=323 data-nosnippet>323</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#324 id=324 data-nosnippet>324</a> LogicalTypeId::Int64
<a href=#325 id=325 data-nosnippet>325</a> }
<a href=#326 id=326 data-nosnippet>326</a>
<a href=#327 id=327 data-nosnippet>327</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#328 id=328 data-nosnippet>328</a> Value::Int64(<span class="number">0</span>)
<a href=#329 id=329 data-nosnippet>329</a> }
<a href=#330 id=330 data-nosnippet>330</a>
<a href=#331 id=331 data-nosnippet>331</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#332 id=332 data-nosnippet>332</a> ArrowDataType::Int64
<a href=#333 id=333 data-nosnippet>333</a> }
<a href=#334 id=334 data-nosnippet>334</a>
<a href=#335 id=335 data-nosnippet>335</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#336 id=336 data-nosnippet>336</a> Box::new(PrimitiveVectorBuilder::&lt;Int64Type&gt;::with_capacity(capacity))
<a href=#337 id=337 data-nosnippet>337</a> }
<a href=#338 id=338 data-nosnippet>338</a>
<a href=#339 id=339 data-nosnippet>339</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#340 id=340 data-nosnippet>340</a> <span class="kw">match </span>from {
<a href=#341 id=341 data-nosnippet>341</a> Value::Boolean(v) =&gt; bool_to_numeric(v).map(Value::Int64),
<a href=#342 id=342 data-nosnippet>342</a> Value::Int8(v) =&gt; num::cast::cast(v).map(Value::Int64),
<a href=#343 id=343 data-nosnippet>343</a> Value::Int16(v) =&gt; num::cast::cast(v).map(Value::Int64),
<a href=#344 id=344 data-nosnippet>344</a> Value::Int32(v) =&gt; num::cast::cast(v).map(Value::Int64),
<a href=#345 id=345 data-nosnippet>345</a> Value::Int64(v) =&gt; <span class="prelude-val">Some</span>(Value::Int64(v)),
<a href=#346 id=346 data-nosnippet>346</a> Value::UInt8(v) =&gt; num::cast::cast(v).map(Value::Int64),
<a href=#347 id=347 data-nosnippet>347</a> Value::UInt16(v) =&gt; num::cast::cast(v).map(Value::Int64),
<a href=#348 id=348 data-nosnippet>348</a> Value::UInt32(v) =&gt; num::cast::cast(v).map(Value::Int64),
<a href=#349 id=349 data-nosnippet>349</a> Value::Float32(v) =&gt; num::cast::cast(v).map(Value::Int64),
<a href=#350 id=350 data-nosnippet>350</a> Value::Float64(v) =&gt; num::cast::cast(v).map(Value::Int64),
<a href=#351 id=351 data-nosnippet>351</a> Value::String(v) =&gt; v.as_utf8().parse::&lt;i64&gt;().map(Value::Int64).ok(),
<a href=#352 id=352 data-nosnippet>352</a> Value::Timestamp(v) =&gt; <span class="prelude-val">Some</span>(Value::Int64(v.value())),
<a href=#353 id=353 data-nosnippet>353</a> Value::Time(v) =&gt; <span class="prelude-val">Some</span>(Value::Int64(v.value())),
<a href=#354 id=354 data-nosnippet>354</a> <span class="comment">// We don't allow casting interval type to int.
<a href=#355 id=355 data-nosnippet>355</a> </span><span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#356 id=356 data-nosnippet>356</a> }
<a href=#357 id=357 data-nosnippet>357</a> }
<a href=#358 id=358 data-nosnippet>358</a>}
<a href=#359 id=359 data-nosnippet>359</a>
<a href=#360 id=360 data-nosnippet>360</a><span class="kw">impl </span>DataType <span class="kw">for </span>Int32Type {
<a href=#361 id=361 data-nosnippet>361</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#362 id=362 data-nosnippet>362</a> <span class="string">"Int32"</span>.to_string()
<a href=#363 id=363 data-nosnippet>363</a> }
<a href=#364 id=364 data-nosnippet>364</a>
<a href=#365 id=365 data-nosnippet>365</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#366 id=366 data-nosnippet>366</a> LogicalTypeId::Int32
<a href=#367 id=367 data-nosnippet>367</a> }
<a href=#368 id=368 data-nosnippet>368</a>
<a href=#369 id=369 data-nosnippet>369</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#370 id=370 data-nosnippet>370</a> Value::Int32(<span class="number">0</span>)
<a href=#371 id=371 data-nosnippet>371</a> }
<a href=#372 id=372 data-nosnippet>372</a>
<a href=#373 id=373 data-nosnippet>373</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#374 id=374 data-nosnippet>374</a> ArrowDataType::Int32
<a href=#375 id=375 data-nosnippet>375</a> }
<a href=#376 id=376 data-nosnippet>376</a>
<a href=#377 id=377 data-nosnippet>377</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#378 id=378 data-nosnippet>378</a> Box::new(PrimitiveVectorBuilder::&lt;Int32Type&gt;::with_capacity(capacity))
<a href=#379 id=379 data-nosnippet>379</a> }
<a href=#380 id=380 data-nosnippet>380</a>
<a href=#381 id=381 data-nosnippet>381</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#382 id=382 data-nosnippet>382</a> <span class="kw">match </span>from {
<a href=#383 id=383 data-nosnippet>383</a> Value::Boolean(v) =&gt; bool_to_numeric(v).map(Value::Int32),
<a href=#384 id=384 data-nosnippet>384</a> Value::Int8(v) =&gt; num::cast::cast(v).map(Value::Int32),
<a href=#385 id=385 data-nosnippet>385</a> Value::Int16(v) =&gt; num::cast::cast(v).map(Value::Int32),
<a href=#386 id=386 data-nosnippet>386</a> Value::Int32(v) =&gt; <span class="prelude-val">Some</span>(Value::Int32(v)),
<a href=#387 id=387 data-nosnippet>387</a> Value::Int64(v) =&gt; num::cast::cast(v).map(Value::Int32),
<a href=#388 id=388 data-nosnippet>388</a> Value::UInt8(v) =&gt; num::cast::cast(v).map(Value::Int32),
<a href=#389 id=389 data-nosnippet>389</a> Value::UInt16(v) =&gt; num::cast::cast(v).map(Value::Int32),
<a href=#390 id=390 data-nosnippet>390</a> Value::UInt32(v) =&gt; num::cast::cast(v).map(Value::Int32),
<a href=#391 id=391 data-nosnippet>391</a> Value::UInt64(v) =&gt; num::cast::cast(v).map(Value::Int32),
<a href=#392 id=392 data-nosnippet>392</a> Value::Float32(v) =&gt; num::cast::cast(v).map(Value::Int32),
<a href=#393 id=393 data-nosnippet>393</a> Value::Float64(v) =&gt; num::cast::cast(v).map(Value::Int32),
<a href=#394 id=394 data-nosnippet>394</a> Value::String(v) =&gt; v.as_utf8().parse::&lt;i32&gt;().map(Value::Int32).ok(),
<a href=#395 id=395 data-nosnippet>395</a> Value::Date(v) =&gt; <span class="prelude-val">Some</span>(Value::Int32(v.val())),
<a href=#396 id=396 data-nosnippet>396</a> <span class="comment">// We don't allow casting interval type to int.
<a href=#397 id=397 data-nosnippet>397</a> </span><span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#398 id=398 data-nosnippet>398</a> }
<a href=#399 id=399 data-nosnippet>399</a> }
<a href=#400 id=400 data-nosnippet>400</a>}
<a href=#401 id=401 data-nosnippet>401</a>
<a href=#402 id=402 data-nosnippet>402</a><span class="attr">#[cfg(test)]
<a href=#403 id=403 data-nosnippet>403</a></span><span class="kw">mod </span>tests {
<a href=#404 id=404 data-nosnippet>404</a> <span class="kw">use </span>std::collections::BinaryHeap;
<a href=#405 id=405 data-nosnippet>405</a>
<a href=#406 id=406 data-nosnippet>406</a> <span class="kw">use </span>ordered_float::OrderedFloat;
<a href=#407 id=407 data-nosnippet>407</a>
<a href=#408 id=408 data-nosnippet>408</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#409 id=409 data-nosnippet>409</a>
<a href=#410 id=410 data-nosnippet>410</a> <span class="attr">#[test]
<a href=#411 id=411 data-nosnippet>411</a> </span><span class="kw">fn </span>test_ord_primitive() {
<a href=#412 id=412 data-nosnippet>412</a> <span class="kw">struct </span>Foo&lt;T&gt;
<a href=#413 id=413 data-nosnippet>413</a> <span class="kw">where
<a href=#414 id=414 data-nosnippet>414</a> </span>T: WrapperType,
<a href=#415 id=415 data-nosnippet>415</a> {
<a href=#416 id=416 data-nosnippet>416</a> heap: BinaryHeap&lt;OrdPrimitive&lt;T&gt;&gt;,
<a href=#417 id=417 data-nosnippet>417</a> }
<a href=#418 id=418 data-nosnippet>418</a>
<a href=#419 id=419 data-nosnippet>419</a> <span class="kw">impl</span>&lt;T&gt; Foo&lt;T&gt;
<a href=#420 id=420 data-nosnippet>420</a> <span class="kw">where
<a href=#421 id=421 data-nosnippet>421</a> </span>T: WrapperType,
<a href=#422 id=422 data-nosnippet>422</a> {
<a href=#423 id=423 data-nosnippet>423</a> <span class="kw">fn </span>push(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: T) {
<a href=#424 id=424 data-nosnippet>424</a> <span class="kw">let </span>value = OrdPrimitive::&lt;T&gt;(value);
<a href=#425 id=425 data-nosnippet>425</a> <span class="self">self</span>.heap.push(value);
<a href=#426 id=426 data-nosnippet>426</a> }
<a href=#427 id=427 data-nosnippet>427</a> }
<a href=#428 id=428 data-nosnippet>428</a>
<a href=#429 id=429 data-nosnippet>429</a> <span class="macro">macro_rules!</span> test {
<a href=#430 id=430 data-nosnippet>430</a> (<span class="macro-nonterminal">$Type</span>:ident) =&gt; {
<a href=#431 id=431 data-nosnippet>431</a> <span class="kw">let </span><span class="kw-2">mut </span>foo = Foo::&lt;<span class="macro-nonterminal">$Type</span>&gt; {
<a href=#432 id=432 data-nosnippet>432</a> heap: BinaryHeap::new(),
<a href=#433 id=433 data-nosnippet>433</a> };
<a href=#434 id=434 data-nosnippet>434</a> foo.push(<span class="macro-nonterminal">$Type::default</span>());
<a href=#435 id=435 data-nosnippet>435</a> <span class="macro">assert_eq!</span>(<span class="macro-nonterminal">$Type::default</span>(), foo.heap.pop().unwrap().as_primitive());
<a href=#436 id=436 data-nosnippet>436</a> };
<a href=#437 id=437 data-nosnippet>437</a> }
<a href=#438 id=438 data-nosnippet>438</a>
<a href=#439 id=439 data-nosnippet>439</a> <span class="macro">test!</span>(u8);
<a href=#440 id=440 data-nosnippet>440</a> <span class="macro">test!</span>(u16);
<a href=#441 id=441 data-nosnippet>441</a> <span class="macro">test!</span>(u32);
<a href=#442 id=442 data-nosnippet>442</a> <span class="macro">test!</span>(u64);
<a href=#443 id=443 data-nosnippet>443</a> <span class="macro">test!</span>(i8);
<a href=#444 id=444 data-nosnippet>444</a> <span class="macro">test!</span>(i16);
<a href=#445 id=445 data-nosnippet>445</a> <span class="macro">test!</span>(i32);
<a href=#446 id=446 data-nosnippet>446</a> <span class="macro">test!</span>(i64);
<a href=#447 id=447 data-nosnippet>447</a> <span class="macro">test!</span>(f32);
<a href=#448 id=448 data-nosnippet>448</a> <span class="macro">test!</span>(f64);
<a href=#449 id=449 data-nosnippet>449</a> }
<a href=#450 id=450 data-nosnippet>450</a>
<a href=#451 id=451 data-nosnippet>451</a> <span class="macro">macro_rules!</span> assert_primitive_cast {
<a href=#452 id=452 data-nosnippet>452</a> (<span class="macro-nonterminal">$value</span>: expr, <span class="macro-nonterminal">$datatype</span>:expr, <span class="macro-nonterminal">$expected</span>: expr) =&gt; {
<a href=#453 id=453 data-nosnippet>453</a> <span class="kw">let </span>val = <span class="macro-nonterminal">$value</span>;
<a href=#454 id=454 data-nosnippet>454</a> <span class="kw">let </span>b = <span class="macro-nonterminal">$datatype</span>.try_cast(val).unwrap();
<a href=#455 id=455 data-nosnippet>455</a> <span class="macro">assert_eq!</span>(b, <span class="macro-nonterminal">$expected</span>);
<a href=#456 id=456 data-nosnippet>456</a> };
<a href=#457 id=457 data-nosnippet>457</a> }
<a href=#458 id=458 data-nosnippet>458</a>
<a href=#459 id=459 data-nosnippet>459</a> <span class="attr">#[test]
<a href=#460 id=460 data-nosnippet>460</a> </span><span class="kw">fn </span>test_primitive_cast() {
<a href=#461 id=461 data-nosnippet>461</a> <span class="comment">// Integer cast
<a href=#462 id=462 data-nosnippet>462</a> </span><span class="macro">assert_primitive_cast!</span>(
<a href=#463 id=463 data-nosnippet>463</a> Value::UInt8(<span class="number">123</span>),
<a href=#464 id=464 data-nosnippet>464</a> ConcreteDataType::uint16_datatype(),
<a href=#465 id=465 data-nosnippet>465</a> Value::UInt16(<span class="number">123</span>)
<a href=#466 id=466 data-nosnippet>466</a> );
<a href=#467 id=467 data-nosnippet>467</a>
<a href=#468 id=468 data-nosnippet>468</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#469 id=469 data-nosnippet>469</a> Value::UInt8(<span class="number">123</span>),
<a href=#470 id=470 data-nosnippet>470</a> ConcreteDataType::uint32_datatype(),
<a href=#471 id=471 data-nosnippet>471</a> Value::UInt32(<span class="number">123</span>)
<a href=#472 id=472 data-nosnippet>472</a> );
<a href=#473 id=473 data-nosnippet>473</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#474 id=474 data-nosnippet>474</a> Value::UInt8(<span class="number">123</span>),
<a href=#475 id=475 data-nosnippet>475</a> ConcreteDataType::uint64_datatype(),
<a href=#476 id=476 data-nosnippet>476</a> Value::UInt64(<span class="number">123</span>)
<a href=#477 id=477 data-nosnippet>477</a> );
<a href=#478 id=478 data-nosnippet>478</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#479 id=479 data-nosnippet>479</a> Value::UInt16(<span class="number">1234</span>),
<a href=#480 id=480 data-nosnippet>480</a> ConcreteDataType::uint32_datatype(),
<a href=#481 id=481 data-nosnippet>481</a> Value::UInt32(<span class="number">1234</span>)
<a href=#482 id=482 data-nosnippet>482</a> );
<a href=#483 id=483 data-nosnippet>483</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#484 id=484 data-nosnippet>484</a> Value::UInt16(<span class="number">1234</span>),
<a href=#485 id=485 data-nosnippet>485</a> ConcreteDataType::uint64_datatype(),
<a href=#486 id=486 data-nosnippet>486</a> Value::UInt64(<span class="number">1234</span>)
<a href=#487 id=487 data-nosnippet>487</a> );
<a href=#488 id=488 data-nosnippet>488</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#489 id=489 data-nosnippet>489</a> Value::UInt32(<span class="number">12345</span>),
<a href=#490 id=490 data-nosnippet>490</a> ConcreteDataType::uint64_datatype(),
<a href=#491 id=491 data-nosnippet>491</a> Value::UInt64(<span class="number">12345</span>)
<a href=#492 id=492 data-nosnippet>492</a> );
<a href=#493 id=493 data-nosnippet>493</a>
<a href=#494 id=494 data-nosnippet>494</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#495 id=495 data-nosnippet>495</a> Value::UInt8(<span class="number">123</span>),
<a href=#496 id=496 data-nosnippet>496</a> ConcreteDataType::uint16_datatype(),
<a href=#497 id=497 data-nosnippet>497</a> Value::UInt16(<span class="number">123</span>)
<a href=#498 id=498 data-nosnippet>498</a> );
<a href=#499 id=499 data-nosnippet>499</a>
<a href=#500 id=500 data-nosnippet>500</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#501 id=501 data-nosnippet>501</a> Value::Int8(<span class="number">123</span>),
<a href=#502 id=502 data-nosnippet>502</a> ConcreteDataType::int32_datatype(),
<a href=#503 id=503 data-nosnippet>503</a> Value::Int32(<span class="number">123</span>)
<a href=#504 id=504 data-nosnippet>504</a> );
<a href=#505 id=505 data-nosnippet>505</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#506 id=506 data-nosnippet>506</a> Value::Int8(<span class="number">123</span>),
<a href=#507 id=507 data-nosnippet>507</a> ConcreteDataType::int64_datatype(),
<a href=#508 id=508 data-nosnippet>508</a> Value::Int64(<span class="number">123</span>)
<a href=#509 id=509 data-nosnippet>509</a> );
<a href=#510 id=510 data-nosnippet>510</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#511 id=511 data-nosnippet>511</a> Value::Int16(<span class="number">1234</span>),
<a href=#512 id=512 data-nosnippet>512</a> ConcreteDataType::int32_datatype(),
<a href=#513 id=513 data-nosnippet>513</a> Value::Int32(<span class="number">1234</span>)
<a href=#514 id=514 data-nosnippet>514</a> );
<a href=#515 id=515 data-nosnippet>515</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#516 id=516 data-nosnippet>516</a> Value::Int16(<span class="number">1234</span>),
<a href=#517 id=517 data-nosnippet>517</a> ConcreteDataType::int64_datatype(),
<a href=#518 id=518 data-nosnippet>518</a> Value::Int64(<span class="number">1234</span>)
<a href=#519 id=519 data-nosnippet>519</a> );
<a href=#520 id=520 data-nosnippet>520</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#521 id=521 data-nosnippet>521</a> Value::Int32(<span class="number">12345</span>),
<a href=#522 id=522 data-nosnippet>522</a> ConcreteDataType::int64_datatype(),
<a href=#523 id=523 data-nosnippet>523</a> Value::Int64(<span class="number">12345</span>)
<a href=#524 id=524 data-nosnippet>524</a> );
<a href=#525 id=525 data-nosnippet>525</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#526 id=526 data-nosnippet>526</a> Value::Int64(<span class="number">12345</span>),
<a href=#527 id=527 data-nosnippet>527</a> ConcreteDataType::int32_datatype(),
<a href=#528 id=528 data-nosnippet>528</a> Value::Int32(<span class="number">12345</span>)
<a href=#529 id=529 data-nosnippet>529</a> );
<a href=#530 id=530 data-nosnippet>530</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#531 id=531 data-nosnippet>531</a> Value::UInt32(<span class="number">12345</span>),
<a href=#532 id=532 data-nosnippet>532</a> ConcreteDataType::int32_datatype(),
<a href=#533 id=533 data-nosnippet>533</a> Value::Int32(<span class="number">12345</span>)
<a href=#534 id=534 data-nosnippet>534</a> );
<a href=#535 id=535 data-nosnippet>535</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#536 id=536 data-nosnippet>536</a> Value::UInt64(<span class="number">12345</span>),
<a href=#537 id=537 data-nosnippet>537</a> ConcreteDataType::int32_datatype(),
<a href=#538 id=538 data-nosnippet>538</a> Value::Int32(<span class="number">12345</span>)
<a href=#539 id=539 data-nosnippet>539</a> );
<a href=#540 id=540 data-nosnippet>540</a> }
<a href=#541 id=541 data-nosnippet>541</a>
<a href=#542 id=542 data-nosnippet>542</a> <span class="attr">#[test]
<a href=#543 id=543 data-nosnippet>543</a> </span><span class="kw">fn </span>test_float_cast() {
<a href=#544 id=544 data-nosnippet>544</a> <span class="comment">// cast to Float32
<a href=#545 id=545 data-nosnippet>545</a> </span><span class="macro">assert_primitive_cast!</span>(
<a href=#546 id=546 data-nosnippet>546</a> Value::UInt8(<span class="number">12</span>),
<a href=#547 id=547 data-nosnippet>547</a> ConcreteDataType::float32_datatype(),
<a href=#548 id=548 data-nosnippet>548</a> Value::Float32(OrderedFloat(<span class="number">12.0</span>))
<a href=#549 id=549 data-nosnippet>549</a> );
<a href=#550 id=550 data-nosnippet>550</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#551 id=551 data-nosnippet>551</a> Value::UInt16(<span class="number">12</span>),
<a href=#552 id=552 data-nosnippet>552</a> ConcreteDataType::float32_datatype(),
<a href=#553 id=553 data-nosnippet>553</a> Value::Float32(OrderedFloat(<span class="number">12.0</span>))
<a href=#554 id=554 data-nosnippet>554</a> );
<a href=#555 id=555 data-nosnippet>555</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#556 id=556 data-nosnippet>556</a> Value::Int8(<span class="number">12</span>),
<a href=#557 id=557 data-nosnippet>557</a> ConcreteDataType::float32_datatype(),
<a href=#558 id=558 data-nosnippet>558</a> Value::Float32(OrderedFloat(<span class="number">12.0</span>))
<a href=#559 id=559 data-nosnippet>559</a> );
<a href=#560 id=560 data-nosnippet>560</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#561 id=561 data-nosnippet>561</a> Value::Int16(<span class="number">12</span>),
<a href=#562 id=562 data-nosnippet>562</a> ConcreteDataType::float32_datatype(),
<a href=#563 id=563 data-nosnippet>563</a> Value::Float32(OrderedFloat(<span class="number">12.0</span>))
<a href=#564 id=564 data-nosnippet>564</a> );
<a href=#565 id=565 data-nosnippet>565</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#566 id=566 data-nosnippet>566</a> Value::Int32(<span class="number">12</span>),
<a href=#567 id=567 data-nosnippet>567</a> ConcreteDataType::float32_datatype(),
<a href=#568 id=568 data-nosnippet>568</a> Value::Float32(OrderedFloat(<span class="number">12.0</span>))
<a href=#569 id=569 data-nosnippet>569</a> );
<a href=#570 id=570 data-nosnippet>570</a>
<a href=#571 id=571 data-nosnippet>571</a> <span class="comment">// cast to Float64
<a href=#572 id=572 data-nosnippet>572</a> </span><span class="macro">assert_primitive_cast!</span>(
<a href=#573 id=573 data-nosnippet>573</a> Value::UInt8(<span class="number">12</span>),
<a href=#574 id=574 data-nosnippet>574</a> ConcreteDataType::float64_datatype(),
<a href=#575 id=575 data-nosnippet>575</a> Value::Float64(OrderedFloat(<span class="number">12.0</span>))
<a href=#576 id=576 data-nosnippet>576</a> );
<a href=#577 id=577 data-nosnippet>577</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#578 id=578 data-nosnippet>578</a> Value::UInt16(<span class="number">12</span>),
<a href=#579 id=579 data-nosnippet>579</a> ConcreteDataType::float64_datatype(),
<a href=#580 id=580 data-nosnippet>580</a> Value::Float64(OrderedFloat(<span class="number">12.0</span>))
<a href=#581 id=581 data-nosnippet>581</a> );
<a href=#582 id=582 data-nosnippet>582</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#583 id=583 data-nosnippet>583</a> Value::UInt32(<span class="number">12</span>),
<a href=#584 id=584 data-nosnippet>584</a> ConcreteDataType::float64_datatype(),
<a href=#585 id=585 data-nosnippet>585</a> Value::Float64(OrderedFloat(<span class="number">12.0</span>))
<a href=#586 id=586 data-nosnippet>586</a> );
<a href=#587 id=587 data-nosnippet>587</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#588 id=588 data-nosnippet>588</a> Value::Int8(<span class="number">12</span>),
<a href=#589 id=589 data-nosnippet>589</a> ConcreteDataType::float64_datatype(),
<a href=#590 id=590 data-nosnippet>590</a> Value::Float64(OrderedFloat(<span class="number">12.0</span>))
<a href=#591 id=591 data-nosnippet>591</a> );
<a href=#592 id=592 data-nosnippet>592</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#593 id=593 data-nosnippet>593</a> Value::Int16(<span class="number">12</span>),
<a href=#594 id=594 data-nosnippet>594</a> ConcreteDataType::float64_datatype(),
<a href=#595 id=595 data-nosnippet>595</a> Value::Float64(OrderedFloat(<span class="number">12.0</span>))
<a href=#596 id=596 data-nosnippet>596</a> );
<a href=#597 id=597 data-nosnippet>597</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#598 id=598 data-nosnippet>598</a> Value::Int32(<span class="number">12</span>),
<a href=#599 id=599 data-nosnippet>599</a> ConcreteDataType::float64_datatype(),
<a href=#600 id=600 data-nosnippet>600</a> Value::Float64(OrderedFloat(<span class="number">12.0</span>))
<a href=#601 id=601 data-nosnippet>601</a> );
<a href=#602 id=602 data-nosnippet>602</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#603 id=603 data-nosnippet>603</a> Value::Int64(<span class="number">12</span>),
<a href=#604 id=604 data-nosnippet>604</a> ConcreteDataType::float64_datatype(),
<a href=#605 id=605 data-nosnippet>605</a> Value::Float64(OrderedFloat(<span class="number">12.0</span>))
<a href=#606 id=606 data-nosnippet>606</a> );
<a href=#607 id=607 data-nosnippet>607</a> }
<a href=#608 id=608 data-nosnippet>608</a>
<a href=#609 id=609 data-nosnippet>609</a> <span class="attr">#[test]
<a href=#610 id=610 data-nosnippet>610</a> </span><span class="kw">fn </span>test_string_cast_to_primitive() {
<a href=#611 id=611 data-nosnippet>611</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#612 id=612 data-nosnippet>612</a> Value::String(<span class="string">"123"</span>.into()),
<a href=#613 id=613 data-nosnippet>613</a> ConcreteDataType::uint8_datatype(),
<a href=#614 id=614 data-nosnippet>614</a> Value::UInt8(<span class="number">123</span>)
<a href=#615 id=615 data-nosnippet>615</a> );
<a href=#616 id=616 data-nosnippet>616</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#617 id=617 data-nosnippet>617</a> Value::String(<span class="string">"123"</span>.into()),
<a href=#618 id=618 data-nosnippet>618</a> ConcreteDataType::uint16_datatype(),
<a href=#619 id=619 data-nosnippet>619</a> Value::UInt16(<span class="number">123</span>)
<a href=#620 id=620 data-nosnippet>620</a> );
<a href=#621 id=621 data-nosnippet>621</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#622 id=622 data-nosnippet>622</a> Value::String(<span class="string">"123"</span>.into()),
<a href=#623 id=623 data-nosnippet>623</a> ConcreteDataType::uint32_datatype(),
<a href=#624 id=624 data-nosnippet>624</a> Value::UInt32(<span class="number">123</span>)
<a href=#625 id=625 data-nosnippet>625</a> );
<a href=#626 id=626 data-nosnippet>626</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#627 id=627 data-nosnippet>627</a> Value::String(<span class="string">"123"</span>.into()),
<a href=#628 id=628 data-nosnippet>628</a> ConcreteDataType::uint64_datatype(),
<a href=#629 id=629 data-nosnippet>629</a> Value::UInt64(<span class="number">123</span>)
<a href=#630 id=630 data-nosnippet>630</a> );
<a href=#631 id=631 data-nosnippet>631</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#632 id=632 data-nosnippet>632</a> Value::String(<span class="string">"123"</span>.into()),
<a href=#633 id=633 data-nosnippet>633</a> ConcreteDataType::int8_datatype(),
<a href=#634 id=634 data-nosnippet>634</a> Value::Int8(<span class="number">123</span>)
<a href=#635 id=635 data-nosnippet>635</a> );
<a href=#636 id=636 data-nosnippet>636</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#637 id=637 data-nosnippet>637</a> Value::String(<span class="string">"123"</span>.into()),
<a href=#638 id=638 data-nosnippet>638</a> ConcreteDataType::int16_datatype(),
<a href=#639 id=639 data-nosnippet>639</a> Value::Int16(<span class="number">123</span>)
<a href=#640 id=640 data-nosnippet>640</a> );
<a href=#641 id=641 data-nosnippet>641</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#642 id=642 data-nosnippet>642</a> Value::String(<span class="string">"123"</span>.into()),
<a href=#643 id=643 data-nosnippet>643</a> ConcreteDataType::int32_datatype(),
<a href=#644 id=644 data-nosnippet>644</a> Value::Int32(<span class="number">123</span>)
<a href=#645 id=645 data-nosnippet>645</a> );
<a href=#646 id=646 data-nosnippet>646</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#647 id=647 data-nosnippet>647</a> Value::String(<span class="string">"123"</span>.into()),
<a href=#648 id=648 data-nosnippet>648</a> ConcreteDataType::int64_datatype(),
<a href=#649 id=649 data-nosnippet>649</a> Value::Int64(<span class="number">123</span>)
<a href=#650 id=650 data-nosnippet>650</a> );
<a href=#651 id=651 data-nosnippet>651</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#652 id=652 data-nosnippet>652</a> Value::String(<span class="string">"1.23"</span>.into()),
<a href=#653 id=653 data-nosnippet>653</a> ConcreteDataType::float32_datatype(),
<a href=#654 id=654 data-nosnippet>654</a> Value::Float32(OrderedFloat(<span class="number">1.23</span>))
<a href=#655 id=655 data-nosnippet>655</a> );
<a href=#656 id=656 data-nosnippet>656</a> <span class="macro">assert_primitive_cast!</span>(
<a href=#657 id=657 data-nosnippet>657</a> Value::String(<span class="string">"1.23"</span>.into()),
<a href=#658 id=658 data-nosnippet>658</a> ConcreteDataType::float64_datatype(),
<a href=#659 id=659 data-nosnippet>659</a> Value::Float64(OrderedFloat(<span class="number">1.23</span>))
<a href=#660 id=660 data-nosnippet>660</a> );
<a href=#661 id=661 data-nosnippet>661</a> }
<a href=#662 id=662 data-nosnippet>662</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/string_type.rs`."><title>string_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>string_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::sync::Arc;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>arrow::datatypes::DataType <span class="kw">as </span>ArrowDataType;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>common_base::bytes::StringBytes;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::data_type::{DataType, DataTypeRef};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::type_id::LogicalTypeId;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{MutableVector, StringVectorBuilder};
<a href=#25 id=25 data-nosnippet>25</a>
<a href=#26 id=26 data-nosnippet>26</a><span class="doccomment">/// String size variant to distinguish between UTF8 and LargeUTF8
<a href=#27 id=27 data-nosnippet>27</a></span><span class="attr">#[derive(
<a href=#28 id=28 data-nosnippet>28</a> Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize, Default,
<a href=#29 id=29 data-nosnippet>29</a>)]
<a href=#30 id=30 data-nosnippet>30</a></span><span class="kw">pub enum </span>StringSizeType {
<a href=#31 id=31 data-nosnippet>31</a> <span class="doccomment">/// Regular UTF8 strings (up to 2GB)
<a href=#32 id=32 data-nosnippet>32</a> </span><span class="attr">#[default]
<a href=#33 id=33 data-nosnippet>33</a> </span>Utf8,
<a href=#34 id=34 data-nosnippet>34</a> <span class="doccomment">/// Large UTF8 strings (up to 2^63 bytes)
<a href=#35 id=35 data-nosnippet>35</a> </span>LargeUtf8,
<a href=#36 id=36 data-nosnippet>36</a> <span class="doccomment">/// A view into string data (Arrow `Utf8View`)
<a href=#37 id=37 data-nosnippet>37</a> </span>Utf8View,
<a href=#38 id=38 data-nosnippet>38</a>}
<a href=#39 id=39 data-nosnippet>39</a>
<a href=#40 id=40 data-nosnippet>40</a><span class="attr">#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize)]
<a href=#41 id=41 data-nosnippet>41</a></span><span class="kw">pub struct </span>StringType {
<a href=#42 id=42 data-nosnippet>42</a> <span class="attr">#[serde(default)]
<a href=#43 id=43 data-nosnippet>43</a> </span>size_type: StringSizeType,
<a href=#44 id=44 data-nosnippet>44</a>}
<a href=#45 id=45 data-nosnippet>45</a>
<a href=#46 id=46 data-nosnippet>46</a><span class="doccomment">/// Custom deserialization to support both old and new formats.
<a href=#47 id=47 data-nosnippet>47</a></span><span class="kw">impl</span>&lt;<span class="lifetime">'de</span>&gt; serde::Deserialize&lt;<span class="lifetime">'de</span>&gt; <span class="kw">for </span>StringType {
<a href=#48 id=48 data-nosnippet>48</a> <span class="kw">fn </span>deserialize&lt;D&gt;(deserializer: D) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>, D::Error&gt;
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">where
<a href=#50 id=50 data-nosnippet>50</a> </span>D: serde::Deserializer&lt;<span class="lifetime">'de</span>&gt;,
<a href=#51 id=51 data-nosnippet>51</a> {
<a href=#52 id=52 data-nosnippet>52</a> <span class="attr">#[derive(serde::Deserialize)]
<a href=#53 id=53 data-nosnippet>53</a> </span><span class="kw">struct </span>Helper {
<a href=#54 id=54 data-nosnippet>54</a> <span class="attr">#[serde(default)]
<a href=#55 id=55 data-nosnippet>55</a> </span>size_type: StringSizeType,
<a href=#56 id=56 data-nosnippet>56</a> }
<a href=#57 id=57 data-nosnippet>57</a>
<a href=#58 id=58 data-nosnippet>58</a> <span class="kw">let </span>opt = Option::&lt;Helper&gt;::deserialize(deserializer)<span class="question-mark">?</span>;
<a href=#59 id=59 data-nosnippet>59</a> <span class="prelude-val">Ok</span>(<span class="kw">match </span>opt {
<a href=#60 id=60 data-nosnippet>60</a> <span class="prelude-val">Some</span>(helper) =&gt; <span class="self">Self </span>{
<a href=#61 id=61 data-nosnippet>61</a> size_type: helper.size_type,
<a href=#62 id=62 data-nosnippet>62</a> },
<a href=#63 id=63 data-nosnippet>63</a> <span class="prelude-val">None </span>=&gt; <span class="self">Self</span>::default(),
<a href=#64 id=64 data-nosnippet>64</a> })
<a href=#65 id=65 data-nosnippet>65</a> }
<a href=#66 id=66 data-nosnippet>66</a>}
<a href=#67 id=67 data-nosnippet>67</a>
<a href=#68 id=68 data-nosnippet>68</a><span class="kw">impl </span>Default <span class="kw">for </span>StringType {
<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">fn </span>default() -&gt; <span class="self">Self </span>{
<a href=#70 id=70 data-nosnippet>70</a> <span class="self">Self </span>{
<a href=#71 id=71 data-nosnippet>71</a> size_type: StringSizeType::Utf8,
<a href=#72 id=72 data-nosnippet>72</a> }
<a href=#73 id=73 data-nosnippet>73</a> }
<a href=#74 id=74 data-nosnippet>74</a>}
<a href=#75 id=75 data-nosnippet>75</a>
<a href=#76 id=76 data-nosnippet>76</a><span class="kw">impl </span>StringType {
<a href=#77 id=77 data-nosnippet>77</a> <span class="doccomment">/// Create a new StringType with default (Utf8) size
<a href=#78 id=78 data-nosnippet>78</a> </span><span class="kw">pub fn </span>new() -&gt; <span class="self">Self </span>{
<a href=#79 id=79 data-nosnippet>79</a> <span class="self">Self </span>{
<a href=#80 id=80 data-nosnippet>80</a> size_type: StringSizeType::Utf8,
<a href=#81 id=81 data-nosnippet>81</a> }
<a href=#82 id=82 data-nosnippet>82</a> }
<a href=#83 id=83 data-nosnippet>83</a>
<a href=#84 id=84 data-nosnippet>84</a> <span class="doccomment">/// Create a new StringType with specified size
<a href=#85 id=85 data-nosnippet>85</a> </span><span class="kw">pub fn </span>with_size(size_type: StringSizeType) -&gt; <span class="self">Self </span>{
<a href=#86 id=86 data-nosnippet>86</a> <span class="self">Self </span>{ size_type }
<a href=#87 id=87 data-nosnippet>87</a> }
<a href=#88 id=88 data-nosnippet>88</a>
<a href=#89 id=89 data-nosnippet>89</a> <span class="doccomment">/// Create a StringType for regular UTF8 strings
<a href=#90 id=90 data-nosnippet>90</a> </span><span class="kw">pub fn </span>utf8() -&gt; <span class="self">Self </span>{
<a href=#91 id=91 data-nosnippet>91</a> <span class="self">Self</span>::with_size(StringSizeType::Utf8)
<a href=#92 id=92 data-nosnippet>92</a> }
<a href=#93 id=93 data-nosnippet>93</a>
<a href=#94 id=94 data-nosnippet>94</a> <span class="doccomment">/// Create a StringType for large UTF8 strings
<a href=#95 id=95 data-nosnippet>95</a> </span><span class="kw">pub fn </span>large_utf8() -&gt; <span class="self">Self </span>{
<a href=#96 id=96 data-nosnippet>96</a> <span class="self">Self</span>::with_size(StringSizeType::LargeUtf8)
<a href=#97 id=97 data-nosnippet>97</a> }
<a href=#98 id=98 data-nosnippet>98</a>
<a href=#99 id=99 data-nosnippet>99</a> <span class="doccomment">/// Create a StringType for view strings
<a href=#100 id=100 data-nosnippet>100</a> </span><span class="kw">pub fn </span>utf8_view() -&gt; <span class="self">Self </span>{
<a href=#101 id=101 data-nosnippet>101</a> <span class="self">Self</span>::with_size(StringSizeType::Utf8View)
<a href=#102 id=102 data-nosnippet>102</a> }
<a href=#103 id=103 data-nosnippet>103</a>
<a href=#104 id=104 data-nosnippet>104</a> <span class="doccomment">/// Get the size type
<a href=#105 id=105 data-nosnippet>105</a> </span><span class="kw">pub fn </span>size_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; StringSizeType {
<a href=#106 id=106 data-nosnippet>106</a> <span class="self">self</span>.size_type
<a href=#107 id=107 data-nosnippet>107</a> }
<a href=#108 id=108 data-nosnippet>108</a>
<a href=#109 id=109 data-nosnippet>109</a> <span class="doccomment">/// Check if this is a large UTF8 string type
<a href=#110 id=110 data-nosnippet>110</a> </span><span class="kw">pub fn </span>is_large(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#111 id=111 data-nosnippet>111</a> <span class="macro">matches!</span>(<span class="self">self</span>.size_type, StringSizeType::LargeUtf8)
<a href=#112 id=112 data-nosnippet>112</a> }
<a href=#113 id=113 data-nosnippet>113</a>
<a href=#114 id=114 data-nosnippet>114</a> <span class="kw">pub fn </span>is_view(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#115 id=115 data-nosnippet>115</a> <span class="macro">matches!</span>(<span class="self">self</span>.size_type, StringSizeType::Utf8View)
<a href=#116 id=116 data-nosnippet>116</a> }
<a href=#117 id=117 data-nosnippet>117</a>
<a href=#118 id=118 data-nosnippet>118</a> <span class="kw">pub fn </span>arc() -&gt; DataTypeRef {
<a href=#119 id=119 data-nosnippet>119</a> Arc::new(<span class="self">Self</span>::new())
<a href=#120 id=120 data-nosnippet>120</a> }
<a href=#121 id=121 data-nosnippet>121</a>
<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">pub fn </span>large_arc() -&gt; DataTypeRef {
<a href=#123 id=123 data-nosnippet>123</a> Arc::new(<span class="self">Self</span>::large_utf8())
<a href=#124 id=124 data-nosnippet>124</a> }
<a href=#125 id=125 data-nosnippet>125</a>
<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">pub fn </span>view_arc() -&gt; DataTypeRef {
<a href=#127 id=127 data-nosnippet>127</a> Arc::new(<span class="self">Self</span>::utf8_view())
<a href=#128 id=128 data-nosnippet>128</a> }
<a href=#129 id=129 data-nosnippet>129</a>}
<a href=#130 id=130 data-nosnippet>130</a>
<a href=#131 id=131 data-nosnippet>131</a><span class="kw">impl </span>DataType <span class="kw">for </span>StringType {
<a href=#132 id=132 data-nosnippet>132</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#133 id=133 data-nosnippet>133</a> <span class="string">"String"</span>.to_string()
<a href=#134 id=134 data-nosnippet>134</a> }
<a href=#135 id=135 data-nosnippet>135</a>
<a href=#136 id=136 data-nosnippet>136</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#137 id=137 data-nosnippet>137</a> LogicalTypeId::String
<a href=#138 id=138 data-nosnippet>138</a> }
<a href=#139 id=139 data-nosnippet>139</a>
<a href=#140 id=140 data-nosnippet>140</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#141 id=141 data-nosnippet>141</a> StringBytes::default().into()
<a href=#142 id=142 data-nosnippet>142</a> }
<a href=#143 id=143 data-nosnippet>143</a>
<a href=#144 id=144 data-nosnippet>144</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#145 id=145 data-nosnippet>145</a> <span class="kw">match </span><span class="self">self</span>.size_type {
<a href=#146 id=146 data-nosnippet>146</a> StringSizeType::Utf8 =&gt; ArrowDataType::Utf8,
<a href=#147 id=147 data-nosnippet>147</a> StringSizeType::LargeUtf8 =&gt; ArrowDataType::LargeUtf8,
<a href=#148 id=148 data-nosnippet>148</a> StringSizeType::Utf8View =&gt; ArrowDataType::Utf8View,
<a href=#149 id=149 data-nosnippet>149</a> }
<a href=#150 id=150 data-nosnippet>150</a> }
<a href=#151 id=151 data-nosnippet>151</a>
<a href=#152 id=152 data-nosnippet>152</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#153 id=153 data-nosnippet>153</a> <span class="kw">match </span><span class="self">self</span>.size_type {
<a href=#154 id=154 data-nosnippet>154</a> StringSizeType::Utf8 =&gt; Box::new(StringVectorBuilder::with_string_capacity(capacity)),
<a href=#155 id=155 data-nosnippet>155</a> StringSizeType::LargeUtf8 =&gt; {
<a href=#156 id=156 data-nosnippet>156</a> Box::new(StringVectorBuilder::with_large_capacity(capacity))
<a href=#157 id=157 data-nosnippet>157</a> }
<a href=#158 id=158 data-nosnippet>158</a> StringSizeType::Utf8View =&gt; Box::new(StringVectorBuilder::with_view_capacity(capacity)),
<a href=#159 id=159 data-nosnippet>159</a> }
<a href=#160 id=160 data-nosnippet>160</a> }
<a href=#161 id=161 data-nosnippet>161</a>
<a href=#162 id=162 data-nosnippet>162</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#163 id=163 data-nosnippet>163</a> <span class="kw">if </span>from.logical_type_id() == <span class="self">self</span>.logical_type_id() {
<a href=#164 id=164 data-nosnippet>164</a> <span class="kw">return </span><span class="prelude-val">Some</span>(from);
<a href=#165 id=165 data-nosnippet>165</a> }
<a href=#166 id=166 data-nosnippet>166</a>
<a href=#167 id=167 data-nosnippet>167</a> <span class="kw">match </span>from {
<a href=#168 id=168 data-nosnippet>168</a> Value::Null =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(<span class="string">"null"</span>.to_string()))),
<a href=#169 id=169 data-nosnippet>169</a>
<a href=#170 id=170 data-nosnippet>170</a> Value::Boolean(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#171 id=171 data-nosnippet>171</a> Value::UInt8(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#172 id=172 data-nosnippet>172</a> Value::UInt16(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#173 id=173 data-nosnippet>173</a> Value::UInt32(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#174 id=174 data-nosnippet>174</a> Value::UInt64(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#175 id=175 data-nosnippet>175</a> Value::Int8(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#176 id=176 data-nosnippet>176</a> Value::Int16(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#177 id=177 data-nosnippet>177</a> Value::Int32(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#178 id=178 data-nosnippet>178</a> Value::Int64(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#179 id=179 data-nosnippet>179</a> Value::Float32(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#180 id=180 data-nosnippet>180</a> Value::Float64(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#181 id=181 data-nosnippet>181</a> Value::String(v) =&gt; <span class="prelude-val">Some</span>(Value::String(v)),
<a href=#182 id=182 data-nosnippet>182</a> Value::Date(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#183 id=183 data-nosnippet>183</a> Value::Timestamp(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_iso8601_string()))),
<a href=#184 id=184 data-nosnippet>184</a> Value::Time(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_iso8601_string()))),
<a href=#185 id=185 data-nosnippet>185</a> Value::IntervalYearMonth(v) =&gt; {
<a href=#186 id=186 data-nosnippet>186</a> <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_iso8601_string())))
<a href=#187 id=187 data-nosnippet>187</a> }
<a href=#188 id=188 data-nosnippet>188</a> Value::IntervalDayTime(v) =&gt; {
<a href=#189 id=189 data-nosnippet>189</a> <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_iso8601_string())))
<a href=#190 id=190 data-nosnippet>190</a> }
<a href=#191 id=191 data-nosnippet>191</a> Value::IntervalMonthDayNano(v) =&gt; {
<a href=#192 id=192 data-nosnippet>192</a> <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_iso8601_string())))
<a href=#193 id=193 data-nosnippet>193</a> }
<a href=#194 id=194 data-nosnippet>194</a> Value::Duration(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#195 id=195 data-nosnippet>195</a> Value::Decimal128(v) =&gt; <span class="prelude-val">Some</span>(Value::String(StringBytes::from(v.to_string()))),
<a href=#196 id=196 data-nosnippet>196</a>
<a href=#197 id=197 data-nosnippet>197</a> Value::Json(v) =&gt; serde_json::to_string(v.as_ref()).ok().map(|s| s.into()),
<a href=#198 id=198 data-nosnippet>198</a>
<a href=#199 id=199 data-nosnippet>199</a> <span class="comment">// StringBytes is only support for utf-8, Value::Binary and collections are not allowed.
<a href=#200 id=200 data-nosnippet>200</a> </span>Value::Binary(<span class="kw">_</span>) | Value::List(<span class="kw">_</span>) | Value::Struct(<span class="kw">_</span>) =&gt; <span class="prelude-val">None</span>,
<a href=#201 id=201 data-nosnippet>201</a> }
<a href=#202 id=202 data-nosnippet>202</a> }
<a href=#203 id=203 data-nosnippet>203</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/struct_type.rs`."><title>struct_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>struct_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::collections::BTreeMap;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::sync::Arc;
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>arrow::datatypes::{DataType <span class="kw">as </span>ArrowDataType, Field};
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>arrow_schema::Fields;
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#21 id=21 data-nosnippet>21</a>
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::error::Result;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::prelude::{ConcreteDataType, DataType, LogicalTypeId};
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::vectors::StructVectorBuilder;
<a href=#26 id=26 data-nosnippet>26</a>
<a href=#27 id=27 data-nosnippet>27</a><span class="attr">#[derive(Clone, Debug, Default, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#28 id=28 data-nosnippet>28</a></span><span class="kw">pub struct </span>StructType {
<a href=#29 id=29 data-nosnippet>29</a> fields: Arc&lt;Vec&lt;StructField&gt;&gt;,
<a href=#30 id=30 data-nosnippet>30</a>}
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">impl </span>From&lt;<span class="kw-2">&amp;</span>Fields&gt; <span class="kw">for </span>StructType {
<a href=#33 id=33 data-nosnippet>33</a> <span class="kw">fn </span>from(value: <span class="kw-2">&amp;</span>Fields) -&gt; <span class="self">Self </span>{
<a href=#34 id=34 data-nosnippet>34</a> <span class="kw">let </span>fields = value
<a href=#35 id=35 data-nosnippet>35</a> .iter()
<a href=#36 id=36 data-nosnippet>36</a> .map(|field| {
<a href=#37 id=37 data-nosnippet>37</a> StructField::new(
<a href=#38 id=38 data-nosnippet>38</a> field.name().clone(),
<a href=#39 id=39 data-nosnippet>39</a> ConcreteDataType::from_arrow_type(field.data_type()),
<a href=#40 id=40 data-nosnippet>40</a> field.is_nullable(),
<a href=#41 id=41 data-nosnippet>41</a> )
<a href=#42 id=42 data-nosnippet>42</a> })
<a href=#43 id=43 data-nosnippet>43</a> .collect::&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;();
<a href=#44 id=44 data-nosnippet>44</a> StructType {
<a href=#45 id=45 data-nosnippet>45</a> fields: Arc::new(fields),
<a href=#46 id=46 data-nosnippet>46</a> }
<a href=#47 id=47 data-nosnippet>47</a> }
<a href=#48 id=48 data-nosnippet>48</a>}
<a href=#49 id=49 data-nosnippet>49</a>
<a href=#50 id=50 data-nosnippet>50</a><span class="kw">impl</span>&lt;<span class="kw">const </span>N: usize&gt; From&lt;[StructField; N]&gt; <span class="kw">for </span>StructType {
<a href=#51 id=51 data-nosnippet>51</a> <span class="kw">fn </span>from(value: [StructField; N]) -&gt; <span class="self">Self </span>{
<a href=#52 id=52 data-nosnippet>52</a> <span class="kw">let </span>value: Box&lt;[StructField]&gt; = Box::new(value);
<a href=#53 id=53 data-nosnippet>53</a> <span class="self">Self </span>{
<a href=#54 id=54 data-nosnippet>54</a> fields: Arc::new(value.into_vec()),
<a href=#55 id=55 data-nosnippet>55</a> }
<a href=#56 id=56 data-nosnippet>56</a> }
<a href=#57 id=57 data-nosnippet>57</a>}
<a href=#58 id=58 data-nosnippet>58</a>
<a href=#59 id=59 data-nosnippet>59</a><span class="kw">impl </span>DataType <span class="kw">for </span>StructType {
<a href=#60 id=60 data-nosnippet>60</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#61 id=61 data-nosnippet>61</a> <span class="macro">format!</span>(
<a href=#62 id=62 data-nosnippet>62</a> <span class="string">"Struct&lt;{}&gt;"</span>,
<a href=#63 id=63 data-nosnippet>63</a> <span class="self">self</span>.fields
<a href=#64 id=64 data-nosnippet>64</a> .iter()
<a href=#65 id=65 data-nosnippet>65</a> .map(|f| <span class="macro">format!</span>(<span class="string">r#""{}": {}"#</span>, f.name(), f.data_type()))
<a href=#66 id=66 data-nosnippet>66</a> .collect::&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;()
<a href=#67 id=67 data-nosnippet>67</a> .join(<span class="string">", "</span>)
<a href=#68 id=68 data-nosnippet>68</a> )
<a href=#69 id=69 data-nosnippet>69</a> }
<a href=#70 id=70 data-nosnippet>70</a>
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#72 id=72 data-nosnippet>72</a> LogicalTypeId::Struct
<a href=#73 id=73 data-nosnippet>73</a> }
<a href=#74 id=74 data-nosnippet>74</a>
<a href=#75 id=75 data-nosnippet>75</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#76 id=76 data-nosnippet>76</a> Value::Null
<a href=#77 id=77 data-nosnippet>77</a> }
<a href=#78 id=78 data-nosnippet>78</a>
<a href=#79 id=79 data-nosnippet>79</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">let </span>fields = <span class="self">self</span>.as_arrow_fields();
<a href=#81 id=81 data-nosnippet>81</a> ArrowDataType::Struct(fields)
<a href=#82 id=82 data-nosnippet>82</a> }
<a href=#83 id=83 data-nosnippet>83</a>
<a href=#84 id=84 data-nosnippet>84</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span><span class="kw">crate</span>::prelude::MutableVector&gt; {
<a href=#85 id=85 data-nosnippet>85</a> Box::new(StructVectorBuilder::with_type_and_capacity(
<a href=#86 id=86 data-nosnippet>86</a> <span class="self">self</span>.clone(),
<a href=#87 id=87 data-nosnippet>87</a> capacity,
<a href=#88 id=88 data-nosnippet>88</a> ))
<a href=#89 id=89 data-nosnippet>89</a> }
<a href=#90 id=90 data-nosnippet>90</a>
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, _from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#92 id=92 data-nosnippet>92</a> <span class="comment">// TODO(discord9): what is the meaning of casting from Value to StructFields?
<a href=#93 id=93 data-nosnippet>93</a> </span><span class="prelude-val">None
<a href=#94 id=94 data-nosnippet>94</a> </span>}
<a href=#95 id=95 data-nosnippet>95</a>}
<a href=#96 id=96 data-nosnippet>96</a>
<a href=#97 id=97 data-nosnippet>97</a><span class="kw">impl </span>StructType {
<a href=#98 id=98 data-nosnippet>98</a> <span class="kw">pub fn </span>new(fields: Arc&lt;Vec&lt;StructField&gt;&gt;) -&gt; <span class="self">Self </span>{
<a href=#99 id=99 data-nosnippet>99</a> StructType {
<a href=#100 id=100 data-nosnippet>100</a> fields: fields.clone(),
<a href=#101 id=101 data-nosnippet>101</a> }
<a href=#102 id=102 data-nosnippet>102</a> }
<a href=#103 id=103 data-nosnippet>103</a>
<a href=#104 id=104 data-nosnippet>104</a> <span class="doccomment">/// Like the `From&lt;&amp;Fields&gt;` impl, but returns an error for arrow field
<a href=#105 id=105 data-nosnippet>105</a> /// types greptimedb cannot represent instead of panicking.
<a href=#106 id=106 data-nosnippet>106</a> </span><span class="kw">pub fn </span>try_from_arrow_fields(fields: <span class="kw-2">&amp;</span>Fields) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#107 id=107 data-nosnippet>107</a> <span class="kw">let </span>struct_fields = fields
<a href=#108 id=108 data-nosnippet>108</a> .iter()
<a href=#109 id=109 data-nosnippet>109</a> .map(|field| {
<a href=#110 id=110 data-nosnippet>110</a> <span class="prelude-val">Ok</span>(StructField::new(
<a href=#111 id=111 data-nosnippet>111</a> field.name().clone(),
<a href=#112 id=112 data-nosnippet>112</a> ConcreteDataType::try_from(field.data_type())<span class="question-mark">?</span>,
<a href=#113 id=113 data-nosnippet>113</a> field.is_nullable(),
<a href=#114 id=114 data-nosnippet>114</a> ))
<a href=#115 id=115 data-nosnippet>115</a> })
<a href=#116 id=116 data-nosnippet>116</a> .collect::&lt;<span class="prelude-ty">Result</span>&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;&gt;()<span class="question-mark">?</span>;
<a href=#117 id=117 data-nosnippet>117</a> <span class="prelude-val">Ok</span>(StructType {
<a href=#118 id=118 data-nosnippet>118</a> fields: Arc::new(struct_fields),
<a href=#119 id=119 data-nosnippet>119</a> })
<a href=#120 id=120 data-nosnippet>120</a> }
<a href=#121 id=121 data-nosnippet>121</a>
<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">pub fn </span>fields(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Arc&lt;Vec&lt;StructField&gt;&gt; {
<a href=#123 id=123 data-nosnippet>123</a> <span class="self">self</span>.fields.clone()
<a href=#124 id=124 data-nosnippet>124</a> }
<a href=#125 id=125 data-nosnippet>125</a>
<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">pub fn </span>as_arrow_fields(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Fields {
<a href=#127 id=127 data-nosnippet>127</a> <span class="self">self</span>.fields
<a href=#128 id=128 data-nosnippet>128</a> .iter()
<a href=#129 id=129 data-nosnippet>129</a> .map(|f| Field::new(f.name.clone(), f.data_type.as_arrow_type(), f.nullable))
<a href=#130 id=130 data-nosnippet>130</a> .collect()
<a href=#131 id=131 data-nosnippet>131</a> }
<a href=#132 id=132 data-nosnippet>132</a>}
<a href=#133 id=133 data-nosnippet>133</a>
<a href=#134 id=134 data-nosnippet>134</a><span class="attr">#[derive(Clone, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#135 id=135 data-nosnippet>135</a></span><span class="kw">pub struct </span>StructField {
<a href=#136 id=136 data-nosnippet>136</a> name: String,
<a href=#137 id=137 data-nosnippet>137</a> data_type: ConcreteDataType,
<a href=#138 id=138 data-nosnippet>138</a> nullable: bool,
<a href=#139 id=139 data-nosnippet>139</a> metadata: BTreeMap&lt;String, String&gt;,
<a href=#140 id=140 data-nosnippet>140</a>}
<a href=#141 id=141 data-nosnippet>141</a>
<a href=#142 id=142 data-nosnippet>142</a><span class="kw">impl </span>StructField {
<a href=#143 id=143 data-nosnippet>143</a> <span class="kw">pub fn </span>new&lt;T: Into&lt;String&gt;&gt;(name: T, data_type: ConcreteDataType, nullable: bool) -&gt; <span class="self">Self </span>{
<a href=#144 id=144 data-nosnippet>144</a> StructField {
<a href=#145 id=145 data-nosnippet>145</a> name: name.into(),
<a href=#146 id=146 data-nosnippet>146</a> data_type,
<a href=#147 id=147 data-nosnippet>147</a> nullable,
<a href=#148 id=148 data-nosnippet>148</a> metadata: BTreeMap::new(),
<a href=#149 id=149 data-nosnippet>149</a> }
<a href=#150 id=150 data-nosnippet>150</a> }
<a href=#151 id=151 data-nosnippet>151</a>
<a href=#152 id=152 data-nosnippet>152</a> <span class="kw">pub fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>str {
<a href=#153 id=153 data-nosnippet>153</a> <span class="kw-2">&amp;</span><span class="self">self</span>.name
<a href=#154 id=154 data-nosnippet>154</a> }
<a href=#155 id=155 data-nosnippet>155</a>
<a href=#156 id=156 data-nosnippet>156</a> <span class="kw">pub fn </span>take_name(<span class="self">self</span>) -&gt; String {
<a href=#157 id=157 data-nosnippet>157</a> <span class="self">self</span>.name
<a href=#158 id=158 data-nosnippet>158</a> }
<a href=#159 id=159 data-nosnippet>159</a>
<a href=#160 id=160 data-nosnippet>160</a> <span class="kw">pub fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>ConcreteDataType {
<a href=#161 id=161 data-nosnippet>161</a> <span class="kw-2">&amp;</span><span class="self">self</span>.data_type
<a href=#162 id=162 data-nosnippet>162</a> }
<a href=#163 id=163 data-nosnippet>163</a>
<a href=#164 id=164 data-nosnippet>164</a> <span class="kw">pub fn </span>is_nullable(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#165 id=165 data-nosnippet>165</a> <span class="self">self</span>.nullable
<a href=#166 id=166 data-nosnippet>166</a> }
<a href=#167 id=167 data-nosnippet>167</a>
<a href=#168 id=168 data-nosnippet>168</a> <span class="attr">#[expect(unused)]
<a href=#169 id=169 data-nosnippet>169</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>metadata(<span class="kw-2">&amp;</span><span class="self">self</span>, key: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>str&gt; {
<a href=#170 id=170 data-nosnippet>170</a> <span class="self">self</span>.metadata.get(key).map(String::as_str)
<a href=#171 id=171 data-nosnippet>171</a> }
<a href=#172 id=172 data-nosnippet>172</a>
<a href=#173 id=173 data-nosnippet>173</a> <span class="kw">pub fn </span>to_df_field(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Field {
<a href=#174 id=174 data-nosnippet>174</a> <span class="kw">let </span>metadata = <span class="self">self
<a href=#175 id=175 data-nosnippet>175</a> </span>.metadata
<a href=#176 id=176 data-nosnippet>176</a> .iter()
<a href=#177 id=177 data-nosnippet>177</a> .map(|(k, v)| (k.clone(), v.clone()))
<a href=#178 id=178 data-nosnippet>178</a> .collect();
<a href=#179 id=179 data-nosnippet>179</a> Field::new(
<a href=#180 id=180 data-nosnippet>180</a> <span class="self">self</span>.name.clone(),
<a href=#181 id=181 data-nosnippet>181</a> <span class="self">self</span>.data_type.as_arrow_type(),
<a href=#182 id=182 data-nosnippet>182</a> <span class="self">self</span>.nullable,
<a href=#183 id=183 data-nosnippet>183</a> )
<a href=#184 id=184 data-nosnippet>184</a> .with_metadata(metadata)
<a href=#185 id=185 data-nosnippet>185</a> }
<a href=#186 id=186 data-nosnippet>186</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/time_type.rs`."><title>time_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>time_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="doccomment">//! TimeType represents the elapsed time since midnight in the unit of `TimeUnit`.
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a></span><span class="kw">use </span>arrow::datatypes::{
<a href=#18 id=18 data-nosnippet>18</a> DataType <span class="kw">as </span>ArrowDataType, Time32MillisecondType <span class="kw">as </span>ArrowTimeMillisecondType,
<a href=#19 id=19 data-nosnippet>19</a> Time32SecondType <span class="kw">as </span>ArrowTimeSecondType, Time64MicrosecondType <span class="kw">as </span>ArrowTimeMicrosecondType,
<a href=#20 id=20 data-nosnippet>20</a> Time64NanosecondType <span class="kw">as </span>ArrowTimeNanosecondType, TimeUnit <span class="kw">as </span>ArrowTimeUnit,
<a href=#21 id=21 data-nosnippet>21</a>};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>common_time::time::Time;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>common_time::timestamp::TimeUnit;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>enum_dispatch::enum_dispatch;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span>paste::paste;
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span>snafu::OptionExt;
<a href=#28 id=28 data-nosnippet>28</a>
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::error;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::prelude::{
<a href=#31 id=31 data-nosnippet>31</a> ConcreteDataType, DataType, LogicalTypeId, MutableVector, ScalarVectorBuilder, Value, ValueRef,
<a href=#32 id=32 data-nosnippet>32</a> Vector,
<a href=#33 id=33 data-nosnippet>33</a>};
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">use </span><span class="kw">crate</span>::time::{TimeMicrosecond, TimeMillisecond, TimeNanosecond, TimeSecond};
<a href=#35 id=35 data-nosnippet>35</a><span class="kw">use </span><span class="kw">crate</span>::types::LogicalPrimitiveType;
<a href=#36 id=36 data-nosnippet>36</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#37 id=37 data-nosnippet>37</a> PrimitiveVector, TimeMicrosecondVector, TimeMicrosecondVectorBuilder, TimeMillisecondVector,
<a href=#38 id=38 data-nosnippet>38</a> TimeMillisecondVectorBuilder, TimeNanosecondVector, TimeNanosecondVectorBuilder,
<a href=#39 id=39 data-nosnippet>39</a> TimeSecondVector, TimeSecondVectorBuilder,
<a href=#40 id=40 data-nosnippet>40</a>};
<a href=#41 id=41 data-nosnippet>41</a>
<a href=#42 id=42 data-nosnippet>42</a><span class="kw">const </span>SECOND_VARIATION: u64 = <span class="number">0</span>;
<a href=#43 id=43 data-nosnippet>43</a><span class="kw">const </span>MILLISECOND_VARIATION: u64 = <span class="number">3</span>;
<a href=#44 id=44 data-nosnippet>44</a><span class="kw">const </span>MICROSECOND_VARIATION: u64 = <span class="number">6</span>;
<a href=#45 id=45 data-nosnippet>45</a><span class="kw">const </span>NANOSECOND_VARIATION: u64 = <span class="number">9</span>;
<a href=#46 id=46 data-nosnippet>46</a>
<a href=#47 id=47 data-nosnippet>47</a><span class="attr">#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#48 id=48 data-nosnippet>48</a>#[enum_dispatch(DataType)]
<a href=#49 id=49 data-nosnippet>49</a></span><span class="kw">pub enum </span>TimeType {
<a href=#50 id=50 data-nosnippet>50</a> Second(TimeSecondType),
<a href=#51 id=51 data-nosnippet>51</a> Millisecond(TimeMillisecondType),
<a href=#52 id=52 data-nosnippet>52</a> Microsecond(TimeMicrosecondType),
<a href=#53 id=53 data-nosnippet>53</a> Nanosecond(TimeNanosecondType),
<a href=#54 id=54 data-nosnippet>54</a>}
<a href=#55 id=55 data-nosnippet>55</a>
<a href=#56 id=56 data-nosnippet>56</a><span class="kw">impl </span>TimeType {
<a href=#57 id=57 data-nosnippet>57</a> <span class="doccomment">/// Creates time type from `TimeUnit`.
<a href=#58 id=58 data-nosnippet>58</a> </span><span class="kw">pub fn </span>from_unit(unit: TimeUnit) -&gt; <span class="self">Self </span>{
<a href=#59 id=59 data-nosnippet>59</a> <span class="kw">match </span>unit {
<a href=#60 id=60 data-nosnippet>60</a> TimeUnit::Second =&gt; <span class="self">Self</span>::Second(TimeSecondType),
<a href=#61 id=61 data-nosnippet>61</a> TimeUnit::Millisecond =&gt; <span class="self">Self</span>::Millisecond(TimeMillisecondType),
<a href=#62 id=62 data-nosnippet>62</a> TimeUnit::Microsecond =&gt; <span class="self">Self</span>::Microsecond(TimeMicrosecondType),
<a href=#63 id=63 data-nosnippet>63</a> TimeUnit::Nanosecond =&gt; <span class="self">Self</span>::Nanosecond(TimeNanosecondType),
<a href=#64 id=64 data-nosnippet>64</a> }
<a href=#65 id=65 data-nosnippet>65</a> }
<a href=#66 id=66 data-nosnippet>66</a>
<a href=#67 id=67 data-nosnippet>67</a> <span class="doccomment">/// Returns the time type's `TimeUnit`.
<a href=#68 id=68 data-nosnippet>68</a> </span><span class="kw">pub fn </span>unit(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; TimeUnit {
<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#70 id=70 data-nosnippet>70</a> TimeType::Second(<span class="kw">_</span>) =&gt; TimeUnit::Second,
<a href=#71 id=71 data-nosnippet>71</a> TimeType::Millisecond(<span class="kw">_</span>) =&gt; TimeUnit::Millisecond,
<a href=#72 id=72 data-nosnippet>72</a> TimeType::Microsecond(<span class="kw">_</span>) =&gt; TimeUnit::Microsecond,
<a href=#73 id=73 data-nosnippet>73</a> TimeType::Nanosecond(<span class="kw">_</span>) =&gt; TimeUnit::Nanosecond,
<a href=#74 id=74 data-nosnippet>74</a> }
<a href=#75 id=75 data-nosnippet>75</a> }
<a href=#76 id=76 data-nosnippet>76</a>
<a href=#77 id=77 data-nosnippet>77</a> <span class="doccomment">/// Returns the time type's precision.
<a href=#78 id=78 data-nosnippet>78</a> </span><span class="kw">pub fn </span>precision(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; u64 {
<a href=#79 id=79 data-nosnippet>79</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#80 id=80 data-nosnippet>80</a> TimeType::Second(<span class="kw">_</span>) =&gt; SECOND_VARIATION,
<a href=#81 id=81 data-nosnippet>81</a> TimeType::Millisecond(<span class="kw">_</span>) =&gt; MILLISECOND_VARIATION,
<a href=#82 id=82 data-nosnippet>82</a> TimeType::Microsecond(<span class="kw">_</span>) =&gt; MICROSECOND_VARIATION,
<a href=#83 id=83 data-nosnippet>83</a> TimeType::Nanosecond(<span class="kw">_</span>) =&gt; NANOSECOND_VARIATION,
<a href=#84 id=84 data-nosnippet>84</a> }
<a href=#85 id=85 data-nosnippet>85</a> }
<a href=#86 id=86 data-nosnippet>86</a>}
<a href=#87 id=87 data-nosnippet>87</a>
<a href=#88 id=88 data-nosnippet>88</a><span class="macro">macro_rules!</span> impl_data_type_for_time {
<a href=#89 id=89 data-nosnippet>89</a> (<span class="macro-nonterminal">$unit</span>: ident,<span class="macro-nonterminal">$arrow_type</span>: ident, <span class="macro-nonterminal">$type</span>: ty, <span class="macro-nonterminal">$TargetType</span>: ident) =&gt; {
<a href=#90 id=90 data-nosnippet>90</a> <span class="macro">paste!</span> {
<a href=#91 id=91 data-nosnippet>91</a> <span class="attr">#[derive(Debug, Default, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#92 id=92 data-nosnippet>92</a> </span><span class="kw">pub struct </span>[&lt;Time <span class="macro-nonterminal">$unit </span>Type&gt;];
<a href=#93 id=93 data-nosnippet>93</a>
<a href=#94 id=94 data-nosnippet>94</a> <span class="kw">impl </span>DataType <span class="kw">for </span>[&lt;Time <span class="macro-nonterminal">$unit </span>Type&gt;] {
<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#96 id=96 data-nosnippet>96</a> <span class="macro">stringify!</span>([&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]).to_string()
<a href=#97 id=97 data-nosnippet>97</a> }
<a href=#98 id=98 data-nosnippet>98</a>
<a href=#99 id=99 data-nosnippet>99</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#100 id=100 data-nosnippet>100</a> LogicalTypeId::[&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]
<a href=#101 id=101 data-nosnippet>101</a> }
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#104 id=104 data-nosnippet>104</a> Value::Time(Time::new(<span class="number">0</span>, TimeUnit::<span class="macro-nonterminal">$unit</span>))
<a href=#105 id=105 data-nosnippet>105</a> }
<a href=#106 id=106 data-nosnippet>106</a>
<a href=#107 id=107 data-nosnippet>107</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#108 id=108 data-nosnippet>108</a> ArrowDataType::<span class="macro-nonterminal">$arrow_type</span>(ArrowTimeUnit::<span class="macro-nonterminal">$unit</span>)
<a href=#109 id=109 data-nosnippet>109</a> }
<a href=#110 id=110 data-nosnippet>110</a>
<a href=#111 id=111 data-nosnippet>111</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#112 id=112 data-nosnippet>112</a> Box::new([&lt;Time <span class="macro-nonterminal">$unit </span>Vector Builder&gt;]::with_capacity(capacity))
<a href=#113 id=113 data-nosnippet>113</a> }
<a href=#114 id=114 data-nosnippet>114</a>
<a href=#115 id=115 data-nosnippet>115</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#116 id=116 data-nosnippet>116</a> <span class="kw">match </span>from {
<a href=#117 id=117 data-nosnippet>117</a> Value::<span class="macro-nonterminal">$TargetType</span>(v) =&gt; <span class="prelude-val">Some</span>(Value::Time(Time::new(v <span class="kw">as </span>i64, TimeUnit::<span class="macro-nonterminal">$unit</span>))),
<a href=#118 id=118 data-nosnippet>118</a> Value::Time(v) =&gt; v.convert_to(TimeUnit::<span class="macro-nonterminal">$unit</span>).map(Value::Time),
<a href=#119 id=119 data-nosnippet>119</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#120 id=120 data-nosnippet>120</a> }
<a href=#121 id=121 data-nosnippet>121</a> }
<a href=#122 id=122 data-nosnippet>122</a> }
<a href=#123 id=123 data-nosnippet>123</a>
<a href=#124 id=124 data-nosnippet>124</a> <span class="kw">impl </span>LogicalPrimitiveType <span class="kw">for </span>[&lt;Time <span class="macro-nonterminal">$unit </span>Type&gt;] {
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">type </span>ArrowPrimitive = [&lt;Arrow Time <span class="macro-nonterminal">$unit </span>Type&gt;];
<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">type </span>Native = <span class="macro-nonterminal">$type</span>;
<a href=#127 id=127 data-nosnippet>127</a> <span class="kw">type </span>Wrapper = [&lt;Time <span class="macro-nonterminal">$unit</span>&gt;];
<a href=#128 id=128 data-nosnippet>128</a> <span class="kw">type </span>LargestType = <span class="self">Self</span>;
<a href=#129 id=129 data-nosnippet>129</a>
<a href=#130 id=130 data-nosnippet>130</a> <span class="kw">fn </span>build_data_type() -&gt; ConcreteDataType {
<a href=#131 id=131 data-nosnippet>131</a> ConcreteDataType::Time(TimeType::<span class="macro-nonterminal">$unit</span>(
<a href=#132 id=132 data-nosnippet>132</a> [&lt;Time <span class="macro-nonterminal">$unit </span>Type&gt;]::default(),
<a href=#133 id=133 data-nosnippet>133</a> ))
<a href=#134 id=134 data-nosnippet>134</a> }
<a href=#135 id=135 data-nosnippet>135</a>
<a href=#136 id=136 data-nosnippet>136</a> <span class="kw">fn </span>type_name() -&gt; <span class="kw-2">&amp;</span><span class="lifetime">'static </span>str {
<a href=#137 id=137 data-nosnippet>137</a> <span class="macro">stringify!</span>([&lt;Time <span class="macro-nonterminal">$unit </span>Type&gt;])
<a href=#138 id=138 data-nosnippet>138</a> }
<a href=#139 id=139 data-nosnippet>139</a>
<a href=#140 id=140 data-nosnippet>140</a> <span class="kw">fn </span>cast_vector(vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector) -&gt; <span class="kw">crate</span>::Result&lt;<span class="kw-2">&amp;</span>PrimitiveVector&lt;<span class="self">Self</span>&gt;&gt; {
<a href=#141 id=141 data-nosnippet>141</a> vector
<a href=#142 id=142 data-nosnippet>142</a> .as_any()
<a href=#143 id=143 data-nosnippet>143</a> .downcast_ref::&lt;[&lt;Time <span class="macro-nonterminal">$unit </span>Vector&gt;]&gt;()
<a href=#144 id=144 data-nosnippet>144</a> .with_context(|| error::CastTypeSnafu {
<a href=#145 id=145 data-nosnippet>145</a> msg: <span class="macro">format!</span>(
<a href=#146 id=146 data-nosnippet>146</a> <span class="string">"Failed to cast {} to {}"</span>,
<a href=#147 id=147 data-nosnippet>147</a> vector.vector_type_name(), <span class="macro">stringify!</span>([&lt;Time <span class="macro-nonterminal">$unit </span>Vector&gt;])
<a href=#148 id=148 data-nosnippet>148</a> ),
<a href=#149 id=149 data-nosnippet>149</a> })
<a href=#150 id=150 data-nosnippet>150</a> }
<a href=#151 id=151 data-nosnippet>151</a>
<a href=#152 id=152 data-nosnippet>152</a> <span class="kw">fn </span>cast_value_ref(value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="kw">crate</span>::Result&lt;<span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::Wrapper&gt;&gt; {
<a href=#153 id=153 data-nosnippet>153</a> <span class="kw">match </span>value {
<a href=#154 id=154 data-nosnippet>154</a> ValueRef::Null =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
<a href=#155 id=155 data-nosnippet>155</a> ValueRef::Int64(v) =&gt;{
<a href=#156 id=156 data-nosnippet>156</a> <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>([&lt;Time <span class="macro-nonterminal">$unit</span>&gt;]::from(<span class="kw-2">*</span>v)))
<a href=#157 id=157 data-nosnippet>157</a> }
<a href=#158 id=158 data-nosnippet>158</a> ValueRef::Time(t) =&gt; <span class="kw">match </span>t.unit() {
<a href=#159 id=159 data-nosnippet>159</a> TimeUnit::<span class="macro-nonterminal">$unit </span>=&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>([&lt;Time <span class="macro-nonterminal">$unit</span>&gt;](<span class="kw-2">*</span>t))),
<a href=#160 id=160 data-nosnippet>160</a> other =&gt; error::CastTypeSnafu {
<a href=#161 id=161 data-nosnippet>161</a> msg: <span class="macro">format!</span>(
<a href=#162 id=162 data-nosnippet>162</a> <span class="string">"Failed to cast Time value with different unit {:?} to {}"</span>,
<a href=#163 id=163 data-nosnippet>163</a> other, <span class="macro">stringify!</span>([&lt;Time <span class="macro-nonterminal">$unit</span>&gt;])
<a href=#164 id=164 data-nosnippet>164</a> ),
<a href=#165 id=165 data-nosnippet>165</a> }
<a href=#166 id=166 data-nosnippet>166</a> .fail(),
<a href=#167 id=167 data-nosnippet>167</a> },
<a href=#168 id=168 data-nosnippet>168</a> other =&gt; error::CastTypeSnafu {
<a href=#169 id=169 data-nosnippet>169</a> msg: <span class="macro">format!</span>(<span class="string">"Failed to cast value {:?} to {}"</span>, other, <span class="macro">stringify!</span>([&lt;Time <span class="macro-nonterminal">$unit</span>&gt;])),
<a href=#170 id=170 data-nosnippet>170</a> }
<a href=#171 id=171 data-nosnippet>171</a> .fail(),
<a href=#172 id=172 data-nosnippet>172</a> }
<a href=#173 id=173 data-nosnippet>173</a> }
<a href=#174 id=174 data-nosnippet>174</a> }
<a href=#175 id=175 data-nosnippet>175</a> }
<a href=#176 id=176 data-nosnippet>176</a> }
<a href=#177 id=177 data-nosnippet>177</a>}
<a href=#178 id=178 data-nosnippet>178</a>
<a href=#179 id=179 data-nosnippet>179</a><span class="macro">impl_data_type_for_time!</span>(Second, Time32, i32, Int32);
<a href=#180 id=180 data-nosnippet>180</a><span class="macro">impl_data_type_for_time!</span>(Millisecond, Time32, i32, Int32);
<a href=#181 id=181 data-nosnippet>181</a><span class="macro">impl_data_type_for_time!</span>(Nanosecond, Time64, i64, Int64);
<a href=#182 id=182 data-nosnippet>182</a><span class="macro">impl_data_type_for_time!</span>(Microsecond, Time64, i64, Int64);
<a href=#183 id=183 data-nosnippet>183</a>
<a href=#184 id=184 data-nosnippet>184</a><span class="attr">#[cfg(test)]
<a href=#185 id=185 data-nosnippet>185</a></span><span class="kw">mod </span>tests {
<a href=#186 id=186 data-nosnippet>186</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#187 id=187 data-nosnippet>187</a>
<a href=#188 id=188 data-nosnippet>188</a> <span class="attr">#[test]
<a href=#189 id=189 data-nosnippet>189</a> </span><span class="kw">fn </span>test_time_type_unit() {
<a href=#190 id=190 data-nosnippet>190</a> <span class="macro">assert_eq!</span>(TimeUnit::Second, TimeType::Second(TimeSecondType).unit());
<a href=#191 id=191 data-nosnippet>191</a> <span class="macro">assert_eq!</span>(
<a href=#192 id=192 data-nosnippet>192</a> TimeUnit::Millisecond,
<a href=#193 id=193 data-nosnippet>193</a> TimeType::Millisecond(TimeMillisecondType).unit()
<a href=#194 id=194 data-nosnippet>194</a> );
<a href=#195 id=195 data-nosnippet>195</a> <span class="macro">assert_eq!</span>(
<a href=#196 id=196 data-nosnippet>196</a> TimeUnit::Microsecond,
<a href=#197 id=197 data-nosnippet>197</a> TimeType::Microsecond(TimeMicrosecondType).unit()
<a href=#198 id=198 data-nosnippet>198</a> );
<a href=#199 id=199 data-nosnippet>199</a> <span class="macro">assert_eq!</span>(
<a href=#200 id=200 data-nosnippet>200</a> TimeUnit::Nanosecond,
<a href=#201 id=201 data-nosnippet>201</a> TimeType::Nanosecond(TimeNanosecondType).unit()
<a href=#202 id=202 data-nosnippet>202</a> );
<a href=#203 id=203 data-nosnippet>203</a> }
<a href=#204 id=204 data-nosnippet>204</a>
<a href=#205 id=205 data-nosnippet>205</a> <span class="attr">#[test]
<a href=#206 id=206 data-nosnippet>206</a> </span><span class="kw">fn </span>test_as_arrow_datatype() {
<a href=#207 id=207 data-nosnippet>207</a> <span class="macro">assert_eq!</span>(
<a href=#208 id=208 data-nosnippet>208</a> ArrowDataType::Time32(ArrowTimeUnit::Second),
<a href=#209 id=209 data-nosnippet>209</a> TimeSecondType.as_arrow_type()
<a href=#210 id=210 data-nosnippet>210</a> );
<a href=#211 id=211 data-nosnippet>211</a> <span class="macro">assert_eq!</span>(
<a href=#212 id=212 data-nosnippet>212</a> ArrowDataType::Time32(ArrowTimeUnit::Millisecond),
<a href=#213 id=213 data-nosnippet>213</a> TimeMillisecondType.as_arrow_type()
<a href=#214 id=214 data-nosnippet>214</a> );
<a href=#215 id=215 data-nosnippet>215</a> <span class="macro">assert_eq!</span>(
<a href=#216 id=216 data-nosnippet>216</a> ArrowDataType::Time64(ArrowTimeUnit::Microsecond),
<a href=#217 id=217 data-nosnippet>217</a> TimeMicrosecondType.as_arrow_type()
<a href=#218 id=218 data-nosnippet>218</a> );
<a href=#219 id=219 data-nosnippet>219</a> <span class="macro">assert_eq!</span>(
<a href=#220 id=220 data-nosnippet>220</a> ArrowDataType::Time64(ArrowTimeUnit::Nanosecond),
<a href=#221 id=221 data-nosnippet>221</a> TimeNanosecondType.as_arrow_type()
<a href=#222 id=222 data-nosnippet>222</a> );
<a href=#223 id=223 data-nosnippet>223</a> }
<a href=#224 id=224 data-nosnippet>224</a>
<a href=#225 id=225 data-nosnippet>225</a> <span class="attr">#[test]
<a href=#226 id=226 data-nosnippet>226</a> </span><span class="kw">fn </span>test_time_cast() {
<a href=#227 id=227 data-nosnippet>227</a> <span class="comment">// Int32 -&gt; TimeSecondType
<a href=#228 id=228 data-nosnippet>228</a> </span><span class="kw">let </span>val = Value::Int32(<span class="number">1000</span>);
<a href=#229 id=229 data-nosnippet>229</a> <span class="kw">let </span>time = ConcreteDataType::time_second_datatype()
<a href=#230 id=230 data-nosnippet>230</a> .try_cast(val)
<a href=#231 id=231 data-nosnippet>231</a> .unwrap();
<a href=#232 id=232 data-nosnippet>232</a> <span class="macro">assert_eq!</span>(time, Value::Time(Time::new_second(<span class="number">1000</span>)));
<a href=#233 id=233 data-nosnippet>233</a>
<a href=#234 id=234 data-nosnippet>234</a> <span class="comment">// Int32 -&gt; TimeMillisecondType
<a href=#235 id=235 data-nosnippet>235</a> </span><span class="kw">let </span>val = Value::Int32(<span class="number">2000</span>);
<a href=#236 id=236 data-nosnippet>236</a> <span class="kw">let </span>time = ConcreteDataType::time_millisecond_datatype()
<a href=#237 id=237 data-nosnippet>237</a> .try_cast(val)
<a href=#238 id=238 data-nosnippet>238</a> .unwrap();
<a href=#239 id=239 data-nosnippet>239</a> <span class="macro">assert_eq!</span>(time, Value::Time(Time::new_millisecond(<span class="number">2000</span>)));
<a href=#240 id=240 data-nosnippet>240</a>
<a href=#241 id=241 data-nosnippet>241</a> <span class="comment">// Int64 -&gt; TimeMicrosecondType
<a href=#242 id=242 data-nosnippet>242</a> </span><span class="kw">let </span>val = Value::Int64(<span class="number">3000</span>);
<a href=#243 id=243 data-nosnippet>243</a> <span class="kw">let </span>time = ConcreteDataType::time_microsecond_datatype()
<a href=#244 id=244 data-nosnippet>244</a> .try_cast(val)
<a href=#245 id=245 data-nosnippet>245</a> .unwrap();
<a href=#246 id=246 data-nosnippet>246</a> <span class="macro">assert_eq!</span>(time, Value::Time(Time::new_microsecond(<span class="number">3000</span>)));
<a href=#247 id=247 data-nosnippet>247</a>
<a href=#248 id=248 data-nosnippet>248</a> <span class="comment">// Int64 -&gt; TimeNanosecondType
<a href=#249 id=249 data-nosnippet>249</a> </span><span class="kw">let </span>val = Value::Int64(<span class="number">4000</span>);
<a href=#250 id=250 data-nosnippet>250</a> <span class="kw">let </span>time = ConcreteDataType::time_nanosecond_datatype()
<a href=#251 id=251 data-nosnippet>251</a> .try_cast(val)
<a href=#252 id=252 data-nosnippet>252</a> .unwrap();
<a href=#253 id=253 data-nosnippet>253</a> <span class="macro">assert_eq!</span>(time, Value::Time(Time::new_nanosecond(<span class="number">4000</span>)));
<a href=#254 id=254 data-nosnippet>254</a>
<a href=#255 id=255 data-nosnippet>255</a> <span class="comment">// Other situations will return None, such as Int64 -&gt; TimeSecondType or
<a href=#256 id=256 data-nosnippet>256</a> // Int32 -&gt; TimeMicrosecondType etc.
<a href=#257 id=257 data-nosnippet>257</a> </span><span class="kw">let </span>val = Value::Int64(<span class="number">123</span>);
<a href=#258 id=258 data-nosnippet>258</a> <span class="kw">let </span>time = ConcreteDataType::time_second_datatype().try_cast(val);
<a href=#259 id=259 data-nosnippet>259</a> <span class="macro">assert_eq!</span>(time, <span class="prelude-val">None</span>);
<a href=#260 id=260 data-nosnippet>260</a>
<a href=#261 id=261 data-nosnippet>261</a> <span class="kw">let </span>val = Value::Int32(<span class="number">123</span>);
<a href=#262 id=262 data-nosnippet>262</a> <span class="kw">let </span>time = ConcreteDataType::time_microsecond_datatype().try_cast(val);
<a href=#263 id=263 data-nosnippet>263</a> <span class="macro">assert_eq!</span>(time, <span class="prelude-val">None</span>);
<a href=#264 id=264 data-nosnippet>264</a>
<a href=#265 id=265 data-nosnippet>265</a> <span class="comment">// TimeSecond -&gt; TimeMicroSecond
<a href=#266 id=266 data-nosnippet>266</a> </span><span class="kw">let </span>second = Value::Time(Time::new_second(<span class="number">2023</span>));
<a href=#267 id=267 data-nosnippet>267</a> <span class="kw">let </span>microsecond = ConcreteDataType::time_microsecond_datatype()
<a href=#268 id=268 data-nosnippet>268</a> .try_cast(second)
<a href=#269 id=269 data-nosnippet>269</a> .unwrap();
<a href=#270 id=270 data-nosnippet>270</a> <span class="macro">assert_eq!</span>(
<a href=#271 id=271 data-nosnippet>271</a> microsecond,
<a href=#272 id=272 data-nosnippet>272</a> Value::Time(Time::new_microsecond(<span class="number">2023 </span>* <span class="number">1000000</span>))
<a href=#273 id=273 data-nosnippet>273</a> );
<a href=#274 id=274 data-nosnippet>274</a>
<a href=#275 id=275 data-nosnippet>275</a> <span class="comment">// test overflow
<a href=#276 id=276 data-nosnippet>276</a> </span><span class="kw">let </span>second = Value::Time(Time::new_second(i64::MAX));
<a href=#277 id=277 data-nosnippet>277</a> <span class="kw">let </span>microsecond = ConcreteDataType::time_microsecond_datatype().try_cast(second);
<a href=#278 id=278 data-nosnippet>278</a> <span class="macro">assert_eq!</span>(microsecond, <span class="prelude-val">None</span>);
<a href=#279 id=279 data-nosnippet>279</a> }
<a href=#280 id=280 data-nosnippet>280</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/timestamp_type.rs`."><title>timestamp_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>timestamp_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>arrow::datatypes::{
<a href=#16 id=16 data-nosnippet>16</a> DataType <span class="kw">as </span>ArrowDataType, TimeUnit <span class="kw">as </span>ArrowTimeUnit,
<a href=#17 id=17 data-nosnippet>17</a> TimestampMicrosecondType <span class="kw">as </span>ArrowTimestampMicrosecondType,
<a href=#18 id=18 data-nosnippet>18</a> TimestampMillisecondType <span class="kw">as </span>ArrowTimestampMillisecondType,
<a href=#19 id=19 data-nosnippet>19</a> TimestampNanosecondType <span class="kw">as </span>ArrowTimestampNanosecondType,
<a href=#20 id=20 data-nosnippet>20</a> TimestampSecondType <span class="kw">as </span>ArrowTimestampSecondType,
<a href=#21 id=21 data-nosnippet>21</a>};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>common_time::Timestamp;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>common_time::timestamp::TimeUnit;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>enum_dispatch::enum_dispatch;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span>paste::paste;
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span>snafu::OptionExt;
<a href=#28 id=28 data-nosnippet>28</a>
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::error;
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">use </span><span class="kw">crate</span>::error::InvalidTimestampPrecisionSnafu;
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span><span class="kw">crate</span>::prelude::{
<a href=#33 id=33 data-nosnippet>33</a> DataType, LogicalTypeId, MutableVector, ScalarVectorBuilder, Value, ValueRef, Vector,
<a href=#34 id=34 data-nosnippet>34</a>};
<a href=#35 id=35 data-nosnippet>35</a><span class="kw">use </span><span class="kw">crate</span>::timestamp::{
<a href=#36 id=36 data-nosnippet>36</a> TimestampMicrosecond, TimestampMillisecond, TimestampNanosecond, TimestampSecond,
<a href=#37 id=37 data-nosnippet>37</a>};
<a href=#38 id=38 data-nosnippet>38</a><span class="kw">use </span><span class="kw">crate</span>::types::LogicalPrimitiveType;
<a href=#39 id=39 data-nosnippet>39</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#40 id=40 data-nosnippet>40</a> PrimitiveVector, TimestampMicrosecondVector, TimestampMicrosecondVectorBuilder,
<a href=#41 id=41 data-nosnippet>41</a> TimestampMillisecondVector, TimestampMillisecondVectorBuilder, TimestampNanosecondVector,
<a href=#42 id=42 data-nosnippet>42</a> TimestampNanosecondVectorBuilder, TimestampSecondVector, TimestampSecondVectorBuilder,
<a href=#43 id=43 data-nosnippet>43</a>};
<a href=#44 id=44 data-nosnippet>44</a>
<a href=#45 id=45 data-nosnippet>45</a><span class="kw">const </span>SECOND_VARIATION: u64 = <span class="number">0</span>;
<a href=#46 id=46 data-nosnippet>46</a><span class="kw">const </span>MILLISECOND_VARIATION: u64 = <span class="number">3</span>;
<a href=#47 id=47 data-nosnippet>47</a><span class="kw">const </span>MICROSECOND_VARIATION: u64 = <span class="number">6</span>;
<a href=#48 id=48 data-nosnippet>48</a><span class="kw">const </span>NANOSECOND_VARIATION: u64 = <span class="number">9</span>;
<a href=#49 id=49 data-nosnippet>49</a>
<a href=#50 id=50 data-nosnippet>50</a><span class="attr">#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#51 id=51 data-nosnippet>51</a>#[enum_dispatch(DataType)]
<a href=#52 id=52 data-nosnippet>52</a></span><span class="kw">pub enum </span>TimestampType {
<a href=#53 id=53 data-nosnippet>53</a> Second(TimestampSecondType),
<a href=#54 id=54 data-nosnippet>54</a> Millisecond(TimestampMillisecondType),
<a href=#55 id=55 data-nosnippet>55</a> Microsecond(TimestampMicrosecondType),
<a href=#56 id=56 data-nosnippet>56</a> Nanosecond(TimestampNanosecondType),
<a href=#57 id=57 data-nosnippet>57</a>}
<a href=#58 id=58 data-nosnippet>58</a>
<a href=#59 id=59 data-nosnippet>59</a><span class="kw">impl </span>TryFrom&lt;u64&gt; <span class="kw">for </span>TimestampType {
<a href=#60 id=60 data-nosnippet>60</a> <span class="kw">type </span>Error = error::Error;
<a href=#61 id=61 data-nosnippet>61</a>
<a href=#62 id=62 data-nosnippet>62</a> <span class="doccomment">/// Convert fractional timestamp precision to timestamp types. Supported precisions are:
<a href=#63 id=63 data-nosnippet>63</a> /// - 0: second
<a href=#64 id=64 data-nosnippet>64</a> /// - 3: millisecond
<a href=#65 id=65 data-nosnippet>65</a> /// - 6: microsecond
<a href=#66 id=66 data-nosnippet>66</a> /// - 9: nanosecond
<a href=#67 id=67 data-nosnippet>67</a> </span><span class="kw">fn </span>try_from(value: u64) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>, <span class="self">Self</span>::Error&gt; {
<a href=#68 id=68 data-nosnippet>68</a> <span class="kw">match </span>value {
<a href=#69 id=69 data-nosnippet>69</a> SECOND_VARIATION =&gt; <span class="prelude-val">Ok</span>(TimestampType::Second(TimestampSecondType)),
<a href=#70 id=70 data-nosnippet>70</a> MILLISECOND_VARIATION =&gt; <span class="prelude-val">Ok</span>(TimestampType::Millisecond(TimestampMillisecondType)),
<a href=#71 id=71 data-nosnippet>71</a> MICROSECOND_VARIATION =&gt; <span class="prelude-val">Ok</span>(TimestampType::Microsecond(TimestampMicrosecondType)),
<a href=#72 id=72 data-nosnippet>72</a> NANOSECOND_VARIATION =&gt; <span class="prelude-val">Ok</span>(TimestampType::Nanosecond(TimestampNanosecondType)),
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">_ </span>=&gt; InvalidTimestampPrecisionSnafu { precision: value }.fail(),
<a href=#74 id=74 data-nosnippet>74</a> }
<a href=#75 id=75 data-nosnippet>75</a> }
<a href=#76 id=76 data-nosnippet>76</a>}
<a href=#77 id=77 data-nosnippet>77</a>
<a href=#78 id=78 data-nosnippet>78</a><span class="kw">impl </span>TimestampType {
<a href=#79 id=79 data-nosnippet>79</a> <span class="doccomment">/// Returns the [`TimeUnit`] of this type.
<a href=#80 id=80 data-nosnippet>80</a> </span><span class="kw">pub fn </span>unit(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; TimeUnit {
<a href=#81 id=81 data-nosnippet>81</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#82 id=82 data-nosnippet>82</a> TimestampType::Second(<span class="kw">_</span>) =&gt; TimeUnit::Second,
<a href=#83 id=83 data-nosnippet>83</a> TimestampType::Millisecond(<span class="kw">_</span>) =&gt; TimeUnit::Millisecond,
<a href=#84 id=84 data-nosnippet>84</a> TimestampType::Microsecond(<span class="kw">_</span>) =&gt; TimeUnit::Microsecond,
<a href=#85 id=85 data-nosnippet>85</a> TimestampType::Nanosecond(<span class="kw">_</span>) =&gt; TimeUnit::Nanosecond,
<a href=#86 id=86 data-nosnippet>86</a> }
<a href=#87 id=87 data-nosnippet>87</a> }
<a href=#88 id=88 data-nosnippet>88</a>
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">pub fn </span>create_timestamp(<span class="kw-2">&amp;</span><span class="self">self</span>, val: i64) -&gt; Timestamp {
<a href=#90 id=90 data-nosnippet>90</a> Timestamp::new(val, <span class="self">self</span>.unit())
<a href=#91 id=91 data-nosnippet>91</a> }
<a href=#92 id=92 data-nosnippet>92</a>
<a href=#93 id=93 data-nosnippet>93</a> <span class="kw">pub fn </span>precision(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; u64 {
<a href=#94 id=94 data-nosnippet>94</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#95 id=95 data-nosnippet>95</a> TimestampType::Second(<span class="kw">_</span>) =&gt; SECOND_VARIATION,
<a href=#96 id=96 data-nosnippet>96</a> TimestampType::Millisecond(<span class="kw">_</span>) =&gt; MILLISECOND_VARIATION,
<a href=#97 id=97 data-nosnippet>97</a> TimestampType::Microsecond(<span class="kw">_</span>) =&gt; MICROSECOND_VARIATION,
<a href=#98 id=98 data-nosnippet>98</a> TimestampType::Nanosecond(<span class="kw">_</span>) =&gt; NANOSECOND_VARIATION,
<a href=#99 id=99 data-nosnippet>99</a> }
<a href=#100 id=100 data-nosnippet>100</a> }
<a href=#101 id=101 data-nosnippet>101</a>}
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a><span class="macro">macro_rules!</span> impl_data_type_for_timestamp {
<a href=#104 id=104 data-nosnippet>104</a> (<span class="macro-nonterminal">$unit</span>: ident) =&gt; {
<a href=#105 id=105 data-nosnippet>105</a> <span class="macro">paste!</span> {
<a href=#106 id=106 data-nosnippet>106</a> <span class="attr">#[derive(Debug, Default, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#107 id=107 data-nosnippet>107</a> </span><span class="kw">pub struct </span>[&lt;Timestamp <span class="macro-nonterminal">$unit </span>Type&gt;];
<a href=#108 id=108 data-nosnippet>108</a>
<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">impl </span>DataType <span class="kw">for </span>[&lt;Timestamp <span class="macro-nonterminal">$unit </span>Type&gt;] {
<a href=#110 id=110 data-nosnippet>110</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#111 id=111 data-nosnippet>111</a> <span class="macro">stringify!</span>([&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]).to_string()
<a href=#112 id=112 data-nosnippet>112</a> }
<a href=#113 id=113 data-nosnippet>113</a>
<a href=#114 id=114 data-nosnippet>114</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#115 id=115 data-nosnippet>115</a> LogicalTypeId::[&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]
<a href=#116 id=116 data-nosnippet>116</a> }
<a href=#117 id=117 data-nosnippet>117</a>
<a href=#118 id=118 data-nosnippet>118</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#119 id=119 data-nosnippet>119</a> Value::Timestamp(Timestamp::new(<span class="number">0</span>, TimeUnit::<span class="macro-nonterminal">$unit</span>))
<a href=#120 id=120 data-nosnippet>120</a> }
<a href=#121 id=121 data-nosnippet>121</a>
<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#123 id=123 data-nosnippet>123</a> ArrowDataType::Timestamp(ArrowTimeUnit::<span class="macro-nonterminal">$unit</span>, <span class="prelude-val">None</span>)
<a href=#124 id=124 data-nosnippet>124</a> }
<a href=#125 id=125 data-nosnippet>125</a>
<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#127 id=127 data-nosnippet>127</a> Box::new([&lt;Timestamp <span class="macro-nonterminal">$unit </span>Vector Builder&gt;]::with_capacity(capacity))
<a href=#128 id=128 data-nosnippet>128</a> }
<a href=#129 id=129 data-nosnippet>129</a>
<a href=#130 id=130 data-nosnippet>130</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, from: Value)-&gt; <span class="prelude-ty">Option</span>&lt;Value&gt;{
<a href=#131 id=131 data-nosnippet>131</a> <span class="kw">match </span>from {
<a href=#132 id=132 data-nosnippet>132</a> Value::Timestamp(v) =&gt; v.convert_to(TimeUnit::<span class="macro-nonterminal">$unit</span>).map(Value::Timestamp),
<a href=#133 id=133 data-nosnippet>133</a> Value::String(v) =&gt; Timestamp::from_str_utc(v.as_utf8()).map(Value::Timestamp).ok(),
<a href=#134 id=134 data-nosnippet>134</a> Value::Int64(v) =&gt; <span class="prelude-val">Some</span>(Value::Timestamp(Timestamp::new(v, TimeUnit::<span class="macro-nonterminal">$unit</span>))),
<a href=#135 id=135 data-nosnippet>135</a> Value::Date(v) =&gt; Timestamp::new_second(v.to_secs()).convert_to(TimeUnit::<span class="macro-nonterminal">$unit</span>).map(Value::Timestamp),
<a href=#136 id=136 data-nosnippet>136</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None
<a href=#137 id=137 data-nosnippet>137</a> </span>}
<a href=#138 id=138 data-nosnippet>138</a> }
<a href=#139 id=139 data-nosnippet>139</a> }
<a href=#140 id=140 data-nosnippet>140</a>
<a href=#141 id=141 data-nosnippet>141</a> <span class="kw">impl </span>LogicalPrimitiveType <span class="kw">for </span>[&lt;Timestamp <span class="macro-nonterminal">$unit </span>Type&gt;] {
<a href=#142 id=142 data-nosnippet>142</a> <span class="kw">type </span>ArrowPrimitive = [&lt;Arrow Timestamp <span class="macro-nonterminal">$unit </span>Type&gt;];
<a href=#143 id=143 data-nosnippet>143</a> <span class="kw">type </span>Native = i64;
<a href=#144 id=144 data-nosnippet>144</a> <span class="kw">type </span>Wrapper = [&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;];
<a href=#145 id=145 data-nosnippet>145</a> <span class="kw">type </span>LargestType = <span class="self">Self</span>;
<a href=#146 id=146 data-nosnippet>146</a>
<a href=#147 id=147 data-nosnippet>147</a> <span class="kw">fn </span>build_data_type() -&gt; ConcreteDataType {
<a href=#148 id=148 data-nosnippet>148</a> ConcreteDataType::Timestamp(TimestampType::<span class="macro-nonterminal">$unit</span>(
<a href=#149 id=149 data-nosnippet>149</a> [&lt;Timestamp <span class="macro-nonterminal">$unit </span>Type&gt;]::default(),
<a href=#150 id=150 data-nosnippet>150</a> ))
<a href=#151 id=151 data-nosnippet>151</a> }
<a href=#152 id=152 data-nosnippet>152</a>
<a href=#153 id=153 data-nosnippet>153</a> <span class="kw">fn </span>type_name() -&gt; <span class="kw-2">&amp;</span><span class="lifetime">'static </span>str {
<a href=#154 id=154 data-nosnippet>154</a> <span class="macro">stringify!</span>([&lt;Timestamp <span class="macro-nonterminal">$unit </span>Type&gt;])
<a href=#155 id=155 data-nosnippet>155</a> }
<a href=#156 id=156 data-nosnippet>156</a>
<a href=#157 id=157 data-nosnippet>157</a> <span class="kw">fn </span>cast_vector(vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector) -&gt; <span class="kw">crate</span>::Result&lt;<span class="kw-2">&amp;</span>PrimitiveVector&lt;<span class="self">Self</span>&gt;&gt; {
<a href=#158 id=158 data-nosnippet>158</a> vector
<a href=#159 id=159 data-nosnippet>159</a> .as_any()
<a href=#160 id=160 data-nosnippet>160</a> .downcast_ref::&lt;[&lt;Timestamp <span class="macro-nonterminal">$unit </span>Vector&gt;]&gt;()
<a href=#161 id=161 data-nosnippet>161</a> .with_context(|| error::CastTypeSnafu {
<a href=#162 id=162 data-nosnippet>162</a> msg: <span class="macro">format!</span>(
<a href=#163 id=163 data-nosnippet>163</a> <span class="string">"Failed to cast {} to {}"</span>,
<a href=#164 id=164 data-nosnippet>164</a> vector.vector_type_name(), <span class="macro">stringify!</span>([&lt;Timestamp <span class="macro-nonterminal">$unit </span>Vector&gt;])
<a href=#165 id=165 data-nosnippet>165</a> ),
<a href=#166 id=166 data-nosnippet>166</a> })
<a href=#167 id=167 data-nosnippet>167</a> }
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a> <span class="kw">fn </span>cast_value_ref(value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="kw">crate</span>::Result&lt;<span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::Wrapper&gt;&gt; {
<a href=#170 id=170 data-nosnippet>170</a> <span class="kw">match </span>value {
<a href=#171 id=171 data-nosnippet>171</a> ValueRef::Null =&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>),
<a href=#172 id=172 data-nosnippet>172</a> ValueRef::Int64(v) =&gt;{
<a href=#173 id=173 data-nosnippet>173</a> <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>([&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;]::from(<span class="kw-2">*</span>v)))
<a href=#174 id=174 data-nosnippet>174</a> }
<a href=#175 id=175 data-nosnippet>175</a> ValueRef::Timestamp(t) =&gt; <span class="kw">match </span>t.unit() {
<a href=#176 id=176 data-nosnippet>176</a> TimeUnit::<span class="macro-nonterminal">$unit </span>=&gt; <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>([&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;](<span class="kw-2">*</span>t))),
<a href=#177 id=177 data-nosnippet>177</a> other =&gt; error::CastTypeSnafu {
<a href=#178 id=178 data-nosnippet>178</a> msg: <span class="macro">format!</span>(
<a href=#179 id=179 data-nosnippet>179</a> <span class="string">"Failed to cast Timestamp value with different unit {:?} to {}"</span>,
<a href=#180 id=180 data-nosnippet>180</a> other, <span class="macro">stringify!</span>([&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;])
<a href=#181 id=181 data-nosnippet>181</a> ),
<a href=#182 id=182 data-nosnippet>182</a> }
<a href=#183 id=183 data-nosnippet>183</a> .fail(),
<a href=#184 id=184 data-nosnippet>184</a> },
<a href=#185 id=185 data-nosnippet>185</a> other =&gt; error::CastTypeSnafu {
<a href=#186 id=186 data-nosnippet>186</a> msg: <span class="macro">format!</span>(<span class="string">"Failed to cast value {:?} to {}"</span>, other, <span class="macro">stringify!</span>([&lt;Timestamp <span class="macro-nonterminal">$unit</span>&gt;])),
<a href=#187 id=187 data-nosnippet>187</a> }
<a href=#188 id=188 data-nosnippet>188</a> .fail(),
<a href=#189 id=189 data-nosnippet>189</a> }
<a href=#190 id=190 data-nosnippet>190</a> }
<a href=#191 id=191 data-nosnippet>191</a> }
<a href=#192 id=192 data-nosnippet>192</a> }
<a href=#193 id=193 data-nosnippet>193</a> }
<a href=#194 id=194 data-nosnippet>194</a>}
<a href=#195 id=195 data-nosnippet>195</a>
<a href=#196 id=196 data-nosnippet>196</a><span class="macro">impl_data_type_for_timestamp!</span>(Nanosecond);
<a href=#197 id=197 data-nosnippet>197</a><span class="macro">impl_data_type_for_timestamp!</span>(Second);
<a href=#198 id=198 data-nosnippet>198</a><span class="macro">impl_data_type_for_timestamp!</span>(Millisecond);
<a href=#199 id=199 data-nosnippet>199</a><span class="macro">impl_data_type_for_timestamp!</span>(Microsecond);
<a href=#200 id=200 data-nosnippet>200</a>
<a href=#201 id=201 data-nosnippet>201</a><span class="attr">#[cfg(test)]
<a href=#202 id=202 data-nosnippet>202</a></span><span class="kw">mod </span>tests {
<a href=#203 id=203 data-nosnippet>203</a> <span class="kw">use </span>common_time::Date;
<a href=#204 id=204 data-nosnippet>204</a> <span class="kw">use </span>common_time::timezone::set_default_timezone;
<a href=#205 id=205 data-nosnippet>205</a>
<a href=#206 id=206 data-nosnippet>206</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#207 id=207 data-nosnippet>207</a>
<a href=#208 id=208 data-nosnippet>208</a> <span class="attr">#[test]
<a href=#209 id=209 data-nosnippet>209</a> </span><span class="kw">fn </span>test_timestamp_type_unit() {
<a href=#210 id=210 data-nosnippet>210</a> <span class="macro">assert_eq!</span>(
<a href=#211 id=211 data-nosnippet>211</a> TimeUnit::Second,
<a href=#212 id=212 data-nosnippet>212</a> TimestampType::Second(TimestampSecondType).unit()
<a href=#213 id=213 data-nosnippet>213</a> );
<a href=#214 id=214 data-nosnippet>214</a> <span class="macro">assert_eq!</span>(
<a href=#215 id=215 data-nosnippet>215</a> TimeUnit::Millisecond,
<a href=#216 id=216 data-nosnippet>216</a> TimestampType::Millisecond(TimestampMillisecondType).unit()
<a href=#217 id=217 data-nosnippet>217</a> );
<a href=#218 id=218 data-nosnippet>218</a> <span class="macro">assert_eq!</span>(
<a href=#219 id=219 data-nosnippet>219</a> TimeUnit::Microsecond,
<a href=#220 id=220 data-nosnippet>220</a> TimestampType::Microsecond(TimestampMicrosecondType).unit()
<a href=#221 id=221 data-nosnippet>221</a> );
<a href=#222 id=222 data-nosnippet>222</a> <span class="macro">assert_eq!</span>(
<a href=#223 id=223 data-nosnippet>223</a> TimeUnit::Nanosecond,
<a href=#224 id=224 data-nosnippet>224</a> TimestampType::Nanosecond(TimestampNanosecondType).unit()
<a href=#225 id=225 data-nosnippet>225</a> );
<a href=#226 id=226 data-nosnippet>226</a> }
<a href=#227 id=227 data-nosnippet>227</a>
<a href=#228 id=228 data-nosnippet>228</a> <span class="comment">// $TZ doesn't take effort
<a href=#229 id=229 data-nosnippet>229</a> </span><span class="attr">#[test]
<a href=#230 id=230 data-nosnippet>230</a> </span><span class="kw">fn </span>test_timestamp_cast() {
<a href=#231 id=231 data-nosnippet>231</a> set_default_timezone(<span class="prelude-val">Some</span>(<span class="string">"Asia/Shanghai"</span>)).unwrap();
<a href=#232 id=232 data-nosnippet>232</a> <span class="comment">// String -&gt; TimestampSecond
<a href=#233 id=233 data-nosnippet>233</a> </span><span class="kw">let </span>s = Value::String(<span class="string">"2021-01-01 01:02:03"</span>.to_string().into());
<a href=#234 id=234 data-nosnippet>234</a> <span class="kw">let </span>ts = ConcreteDataType::timestamp_second_datatype()
<a href=#235 id=235 data-nosnippet>235</a> .try_cast(s)
<a href=#236 id=236 data-nosnippet>236</a> .unwrap();
<a href=#237 id=237 data-nosnippet>237</a> <span class="comment">// 1609462923 is 2021-01-01T01:02:03Z
<a href=#238 id=238 data-nosnippet>238</a> </span><span class="macro">assert_eq!</span>(ts, Value::Timestamp(Timestamp::new_second(<span class="number">1609462923</span>)));
<a href=#239 id=239 data-nosnippet>239</a> <span class="comment">// String cast failed
<a href=#240 id=240 data-nosnippet>240</a> </span><span class="kw">let </span>s = Value::String(<span class="string">"12345"</span>.to_string().into());
<a href=#241 id=241 data-nosnippet>241</a> <span class="kw">let </span>ts = ConcreteDataType::timestamp_second_datatype().try_cast(s);
<a href=#242 id=242 data-nosnippet>242</a> <span class="macro">assert_eq!</span>(ts, <span class="prelude-val">None</span>);
<a href=#243 id=243 data-nosnippet>243</a>
<a href=#244 id=244 data-nosnippet>244</a> <span class="kw">let </span>n = Value::Int64(<span class="number">1694589525</span>);
<a href=#245 id=245 data-nosnippet>245</a> <span class="comment">// Int64 -&gt; TimestampSecond
<a href=#246 id=246 data-nosnippet>246</a> </span><span class="kw">let </span>ts = ConcreteDataType::timestamp_second_datatype()
<a href=#247 id=247 data-nosnippet>247</a> .try_cast(n)
<a href=#248 id=248 data-nosnippet>248</a> .unwrap();
<a href=#249 id=249 data-nosnippet>249</a> <span class="macro">assert_eq!</span>(ts, Value::Timestamp(Timestamp::new_second(<span class="number">1694589525</span>)));
<a href=#250 id=250 data-nosnippet>250</a>
<a href=#251 id=251 data-nosnippet>251</a> <span class="comment">// Date -&gt; TimestampMillisecond
<a href=#252 id=252 data-nosnippet>252</a> </span><span class="kw">let </span>d = Value::Date(Date::from_str_utc(<span class="string">"1970-01-01"</span>).unwrap());
<a href=#253 id=253 data-nosnippet>253</a> <span class="kw">let </span>ts = ConcreteDataType::timestamp_millisecond_datatype()
<a href=#254 id=254 data-nosnippet>254</a> .try_cast(d)
<a href=#255 id=255 data-nosnippet>255</a> .unwrap();
<a href=#256 id=256 data-nosnippet>256</a> <span class="macro">assert_eq!</span>(ts, Value::Timestamp(Timestamp::new_millisecond(<span class="number">0</span>)));
<a href=#257 id=257 data-nosnippet>257</a>
<a href=#258 id=258 data-nosnippet>258</a> <span class="comment">// TimestampSecond -&gt; TimestampMicrosecond
<a href=#259 id=259 data-nosnippet>259</a> </span><span class="kw">let </span>second = Value::Timestamp(Timestamp::new_second(<span class="number">123</span>));
<a href=#260 id=260 data-nosnippet>260</a> <span class="kw">let </span>microsecond = ConcreteDataType::timestamp_microsecond_datatype()
<a href=#261 id=261 data-nosnippet>261</a> .try_cast(second)
<a href=#262 id=262 data-nosnippet>262</a> .unwrap();
<a href=#263 id=263 data-nosnippet>263</a> <span class="macro">assert_eq!</span>(
<a href=#264 id=264 data-nosnippet>264</a> microsecond,
<a href=#265 id=265 data-nosnippet>265</a> Value::Timestamp(Timestamp::new_microsecond(<span class="number">123 </span>* <span class="number">1000000</span>))
<a href=#266 id=266 data-nosnippet>266</a> )
<a href=#267 id=267 data-nosnippet>267</a> }
<a href=#268 id=268 data-nosnippet>268</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/types/vector_type.rs`."><title>vector_type.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/types/</div>vector_type.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>arrow::datatypes::DataType <span class="kw">as </span>ArrowDataType;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>common_base::bytes::Bytes;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>serde::{Deserialize, Serialize};
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span><span class="kw">crate</span>::data_type::DataType;
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span><span class="kw">crate</span>::error::{InvalidVectorSnafu, <span class="prelude-ty">Result</span>};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::scalars::ScalarVectorBuilder;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::type_id::LogicalTypeId;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{BinaryVectorBuilder, MutableVector};
<a href=#25 id=25 data-nosnippet>25</a>
<a href=#26 id=26 data-nosnippet>26</a><span class="doccomment">/// `VectorType` is a data type for vector data with a fixed dimension.
<a href=#27 id=27 data-nosnippet>27</a>/// The type of items in the vector is float32.
<a href=#28 id=28 data-nosnippet>28</a>/// It is stored as binary data that contains the concatenated float32 values.
<a href=#29 id=29 data-nosnippet>29</a></span><span class="attr">#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize, Deserialize)]
<a href=#30 id=30 data-nosnippet>30</a></span><span class="kw">pub struct </span>VectorType {
<a href=#31 id=31 data-nosnippet>31</a> <span class="kw">pub </span>dim: u32,
<a href=#32 id=32 data-nosnippet>32</a>}
<a href=#33 id=33 data-nosnippet>33</a>
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">impl </span>VectorType {
<a href=#35 id=35 data-nosnippet>35</a> <span class="kw">pub fn </span>new(dim: u32) -&gt; <span class="self">Self </span>{
<a href=#36 id=36 data-nosnippet>36</a> <span class="self">Self </span>{ dim }
<a href=#37 id=37 data-nosnippet>37</a> }
<a href=#38 id=38 data-nosnippet>38</a>}
<a href=#39 id=39 data-nosnippet>39</a>
<a href=#40 id=40 data-nosnippet>40</a><span class="kw">impl </span>DataType <span class="kw">for </span>VectorType {
<a href=#41 id=41 data-nosnippet>41</a> <span class="kw">fn </span>name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#42 id=42 data-nosnippet>42</a> <span class="macro">format!</span>(<span class="string">"Vector({})"</span>, <span class="self">self</span>.dim)
<a href=#43 id=43 data-nosnippet>43</a> }
<a href=#44 id=44 data-nosnippet>44</a>
<a href=#45 id=45 data-nosnippet>45</a> <span class="kw">fn </span>logical_type_id(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; LogicalTypeId {
<a href=#46 id=46 data-nosnippet>46</a> LogicalTypeId::Vector
<a href=#47 id=47 data-nosnippet>47</a> }
<a href=#48 id=48 data-nosnippet>48</a>
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">fn </span>default_value(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Value {
<a href=#50 id=50 data-nosnippet>50</a> Bytes::default().into()
<a href=#51 id=51 data-nosnippet>51</a> }
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a> <span class="kw">fn </span>as_arrow_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrowDataType {
<a href=#54 id=54 data-nosnippet>54</a> ArrowDataType::Binary
<a href=#55 id=55 data-nosnippet>55</a> }
<a href=#56 id=56 data-nosnippet>56</a>
<a href=#57 id=57 data-nosnippet>57</a> <span class="kw">fn </span>create_mutable_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, capacity: usize) -&gt; Box&lt;<span class="kw">dyn </span>MutableVector&gt; {
<a href=#58 id=58 data-nosnippet>58</a> Box::new(BinaryVectorBuilder::with_capacity(capacity))
<a href=#59 id=59 data-nosnippet>59</a> }
<a href=#60 id=60 data-nosnippet>60</a>
<a href=#61 id=61 data-nosnippet>61</a> <span class="kw">fn </span>try_cast(<span class="kw-2">&amp;</span><span class="self">self</span>, from: Value) -&gt; <span class="prelude-ty">Option</span>&lt;Value&gt; {
<a href=#62 id=62 data-nosnippet>62</a> <span class="kw">match </span>from {
<a href=#63 id=63 data-nosnippet>63</a> Value::Binary(v) =&gt; <span class="prelude-val">Some</span>(Value::Binary(v)),
<a href=#64 id=64 data-nosnippet>64</a> <span class="kw">_ </span>=&gt; <span class="prelude-val">None</span>,
<a href=#65 id=65 data-nosnippet>65</a> }
<a href=#66 id=66 data-nosnippet>66</a> }
<a href=#67 id=67 data-nosnippet>67</a>}
<a href=#68 id=68 data-nosnippet>68</a>
<a href=#69 id=69 data-nosnippet>69</a><span class="doccomment">/// Converts a vector type value to string
<a href=#70 id=70 data-nosnippet>70</a>/// for example: [1.0, 2.0, 3.0] -&gt; "[1.0,2.0,3.0]"
<a href=#71 id=71 data-nosnippet>71</a></span><span class="kw">pub fn </span>vector_type_value_to_string(val: <span class="kw-2">&amp;</span>[u8], dim: u32) -&gt; <span class="prelude-ty">Result</span>&lt;String&gt; {
<a href=#72 id=72 data-nosnippet>72</a> <span class="kw">let </span>expected_len = dim <span class="kw">as </span>usize * std::mem::size_of::&lt;f32&gt;();
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">if </span>val.len() != expected_len {
<a href=#74 id=74 data-nosnippet>74</a> <span class="kw">return </span>InvalidVectorSnafu {
<a href=#75 id=75 data-nosnippet>75</a> msg: <span class="macro">format!</span>(
<a href=#76 id=76 data-nosnippet>76</a> <span class="string">"Failed to convert Vector value to string: wrong byte size, expected {}, got {}"</span>,
<a href=#77 id=77 data-nosnippet>77</a> expected_len,
<a href=#78 id=78 data-nosnippet>78</a> val.len()
<a href=#79 id=79 data-nosnippet>79</a> ),
<a href=#80 id=80 data-nosnippet>80</a> }
<a href=#81 id=81 data-nosnippet>81</a> .fail();
<a href=#82 id=82 data-nosnippet>82</a> }
<a href=#83 id=83 data-nosnippet>83</a>
<a href=#84 id=84 data-nosnippet>84</a> <span class="kw">if </span>dim == <span class="number">0 </span>{
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="string">"[]"</span>.to_string());
<a href=#86 id=86 data-nosnippet>86</a> }
<a href=#87 id=87 data-nosnippet>87</a>
<a href=#88 id=88 data-nosnippet>88</a> <span class="kw">let </span>elements = val
<a href=#89 id=89 data-nosnippet>89</a> .chunks_exact(std::mem::size_of::&lt;f32&gt;())
<a href=#90 id=90 data-nosnippet>90</a> .map(|e| f32::from_le_bytes(e.try_into().unwrap()));
<a href=#91 id=91 data-nosnippet>91</a>
<a href=#92 id=92 data-nosnippet>92</a> <span class="kw">let </span><span class="kw-2">mut </span>s = String::from(<span class="string">"["</span>);
<a href=#93 id=93 data-nosnippet>93</a> <span class="kw">for </span>(i, e) <span class="kw">in </span>elements.enumerate() {
<a href=#94 id=94 data-nosnippet>94</a> <span class="kw">if </span>i &gt; <span class="number">0 </span>{
<a href=#95 id=95 data-nosnippet>95</a> s.push(<span class="string">','</span>);
<a href=#96 id=96 data-nosnippet>96</a> }
<a href=#97 id=97 data-nosnippet>97</a> s.push_str(<span class="kw-2">&amp;</span>e.to_string());
<a href=#98 id=98 data-nosnippet>98</a> }
<a href=#99 id=99 data-nosnippet>99</a> s.push(<span class="string">']'</span>);
<a href=#100 id=100 data-nosnippet>100</a> <span class="prelude-val">Ok</span>(s)
<a href=#101 id=101 data-nosnippet>101</a>}
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a><span class="doccomment">/// Parses a string to a vector type value
<a href=#104 id=104 data-nosnippet>104</a>/// Valid input format: "[1.0,2.0,3.0]", "[1.0, 2.0, 3.0]"
<a href=#105 id=105 data-nosnippet>105</a></span><span class="kw">pub fn </span>parse_string_to_vector_type_value(s: <span class="kw-2">&amp;</span>str, dim: <span class="prelude-ty">Option</span>&lt;u32&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;u8&gt;&gt; {
<a href=#106 id=106 data-nosnippet>106</a> <span class="comment">// Trim the brackets
<a href=#107 id=107 data-nosnippet>107</a> </span><span class="kw">let </span>trimmed = s.trim();
<a href=#108 id=108 data-nosnippet>108</a> <span class="kw">if </span>!trimmed.starts_with(<span class="string">'['</span>) || !trimmed.ends_with(<span class="string">']'</span>) {
<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">return </span>InvalidVectorSnafu {
<a href=#110 id=110 data-nosnippet>110</a> msg: <span class="macro">format!</span>(<span class="string">"Failed to parse {s} to Vector value: not properly enclosed in brackets"</span>),
<a href=#111 id=111 data-nosnippet>111</a> }
<a href=#112 id=112 data-nosnippet>112</a> .fail();
<a href=#113 id=113 data-nosnippet>113</a> }
<a href=#114 id=114 data-nosnippet>114</a> <span class="comment">// Remove the brackets
<a href=#115 id=115 data-nosnippet>115</a> </span><span class="kw">let </span>content = trimmed[<span class="number">1</span>..trimmed.len() - <span class="number">1</span>].trim();
<a href=#116 id=116 data-nosnippet>116</a>
<a href=#117 id=117 data-nosnippet>117</a> <span class="kw">if </span>content.is_empty() {
<a href=#118 id=118 data-nosnippet>118</a> <span class="kw">if </span>dim.is_some_and(|d| d != <span class="number">0</span>) {
<a href=#119 id=119 data-nosnippet>119</a> <span class="kw">return </span>InvalidVectorSnafu {
<a href=#120 id=120 data-nosnippet>120</a> msg: <span class="macro">format!</span>(<span class="string">"Failed to parse {s} to Vector value: wrong dimension"</span>),
<a href=#121 id=121 data-nosnippet>121</a> }
<a href=#122 id=122 data-nosnippet>122</a> .fail();
<a href=#123 id=123 data-nosnippet>123</a> }
<a href=#124 id=124 data-nosnippet>124</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="macro">vec!</span>[]);
<a href=#125 id=125 data-nosnippet>125</a> }
<a href=#126 id=126 data-nosnippet>126</a>
<a href=#127 id=127 data-nosnippet>127</a> <span class="kw">let </span>elements = content
<a href=#128 id=128 data-nosnippet>128</a> .split(<span class="string">','</span>)
<a href=#129 id=129 data-nosnippet>129</a> .map(|e| {
<a href=#130 id=130 data-nosnippet>130</a> e.trim().parse::&lt;f32&gt;().map_err(|<span class="kw">_</span>| {
<a href=#131 id=131 data-nosnippet>131</a> InvalidVectorSnafu {
<a href=#132 id=132 data-nosnippet>132</a> msg: <span class="macro">format!</span>(
<a href=#133 id=133 data-nosnippet>133</a> <span class="string">"Failed to parse {s} to Vector value: elements are not all float32"
<a href=#134 id=134 data-nosnippet>134</a> </span>),
<a href=#135 id=135 data-nosnippet>135</a> }
<a href=#136 id=136 data-nosnippet>136</a> .build()
<a href=#137 id=137 data-nosnippet>137</a> })
<a href=#138 id=138 data-nosnippet>138</a> })
<a href=#139 id=139 data-nosnippet>139</a> .collect::&lt;<span class="prelude-ty">Result</span>&lt;Vec&lt;f32&gt;&gt;&gt;()<span class="question-mark">?</span>;
<a href=#140 id=140 data-nosnippet>140</a>
<a href=#141 id=141 data-nosnippet>141</a> <span class="comment">// Check dimension
<a href=#142 id=142 data-nosnippet>142</a> </span><span class="kw">if </span>dim.is_some_and(|d| d <span class="kw">as </span>usize != elements.len()) {
<a href=#143 id=143 data-nosnippet>143</a> <span class="kw">return </span>InvalidVectorSnafu {
<a href=#144 id=144 data-nosnippet>144</a> msg: <span class="macro">format!</span>(<span class="string">"Failed to parse {s} to Vector value: wrong dimension"</span>),
<a href=#145 id=145 data-nosnippet>145</a> }
<a href=#146 id=146 data-nosnippet>146</a> .fail();
<a href=#147 id=147 data-nosnippet>147</a> }
<a href=#148 id=148 data-nosnippet>148</a>
<a href=#149 id=149 data-nosnippet>149</a> <span class="comment">// Convert Vec&lt;f32&gt; to Vec&lt;u8&gt;
<a href=#150 id=150 data-nosnippet>150</a> </span><span class="kw">let </span>bytes = <span class="kw">if </span><span class="macro">cfg!</span>(target_endian = <span class="string">"little"</span>) {
<a href=#151 id=151 data-nosnippet>151</a> <span class="kw">unsafe </span>{
<a href=#152 id=152 data-nosnippet>152</a> std::slice::from_raw_parts(
<a href=#153 id=153 data-nosnippet>153</a> elements.as_ptr() <span class="kw">as </span><span class="kw-2">*const </span>u8,
<a href=#154 id=154 data-nosnippet>154</a> elements.len() * std::mem::size_of::&lt;f32&gt;(),
<a href=#155 id=155 data-nosnippet>155</a> )
<a href=#156 id=156 data-nosnippet>156</a> .to_vec()
<a href=#157 id=157 data-nosnippet>157</a> }
<a href=#158 id=158 data-nosnippet>158</a> } <span class="kw">else </span>{
<a href=#159 id=159 data-nosnippet>159</a> elements
<a href=#160 id=160 data-nosnippet>160</a> .iter()
<a href=#161 id=161 data-nosnippet>161</a> .flat_map(|e| e.to_le_bytes())
<a href=#162 id=162 data-nosnippet>162</a> .collect::&lt;Vec&lt;u8&gt;&gt;()
<a href=#163 id=163 data-nosnippet>163</a> };
<a href=#164 id=164 data-nosnippet>164</a>
<a href=#165 id=165 data-nosnippet>165</a> <span class="prelude-val">Ok</span>(bytes)
<a href=#166 id=166 data-nosnippet>166</a>}
<a href=#167 id=167 data-nosnippet>167</a>
<a href=#168 id=168 data-nosnippet>168</a><span class="attr">#[cfg(test)]
<a href=#169 id=169 data-nosnippet>169</a></span><span class="kw">mod </span>tests {
<a href=#170 id=170 data-nosnippet>170</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#171 id=171 data-nosnippet>171</a>
<a href=#172 id=172 data-nosnippet>172</a> <span class="attr">#[test]
<a href=#173 id=173 data-nosnippet>173</a> </span><span class="kw">fn </span>test_conversion_between_string_and_vector_type_value() {
<a href=#174 id=174 data-nosnippet>174</a> <span class="kw">let </span>dim = <span class="number">3</span>;
<a href=#175 id=175 data-nosnippet>175</a>
<a href=#176 id=176 data-nosnippet>176</a> <span class="kw">let </span>cases = [
<a href=#177 id=177 data-nosnippet>177</a> (<span class="string">"[1.0,2.0,3]"</span>, <span class="string">"[1,2,3]"</span>),
<a href=#178 id=178 data-nosnippet>178</a> (<span class="string">"[0.0 , 0.0 , 0.0]"</span>, <span class="string">"[0,0,0]"</span>),
<a href=#179 id=179 data-nosnippet>179</a> (
<a href=#180 id=180 data-nosnippet>180</a> <span class="string">"[3.4028235e38, -3.4028235e38, 1.1754944e-38]"</span>,
<a href=#181 id=181 data-nosnippet>181</a> <span class="string">"[340282350000000000000000000000000000000,-340282350000000000000000000000000000000,0.000000000000000000000000000000000000011754944]"</span>,
<a href=#182 id=182 data-nosnippet>182</a> ),
<a href=#183 id=183 data-nosnippet>183</a> ];
<a href=#184 id=184 data-nosnippet>184</a>
<a href=#185 id=185 data-nosnippet>185</a> <span class="kw">for </span>(s, expected) <span class="kw">in </span>cases.iter() {
<a href=#186 id=186 data-nosnippet>186</a> <span class="kw">let </span>val = parse_string_to_vector_type_value(s, <span class="prelude-val">Some</span>(dim)).unwrap();
<a href=#187 id=187 data-nosnippet>187</a> <span class="kw">let </span>s = vector_type_value_to_string(<span class="kw-2">&amp;</span>val, dim).unwrap();
<a href=#188 id=188 data-nosnippet>188</a> <span class="macro">assert_eq!</span>(s, <span class="kw-2">*</span>expected);
<a href=#189 id=189 data-nosnippet>189</a> }
<a href=#190 id=190 data-nosnippet>190</a>
<a href=#191 id=191 data-nosnippet>191</a> <span class="kw">let </span>dim = <span class="number">0</span>;
<a href=#192 id=192 data-nosnippet>192</a> <span class="kw">let </span>cases = [(<span class="string">"[]"</span>, <span class="string">"[]"</span>), (<span class="string">"[ ]"</span>, <span class="string">"[]"</span>), (<span class="string">"[ ]"</span>, <span class="string">"[]"</span>)];
<a href=#193 id=193 data-nosnippet>193</a> <span class="kw">for </span>(s, expected) <span class="kw">in </span>cases.iter() {
<a href=#194 id=194 data-nosnippet>194</a> <span class="kw">let </span>val = parse_string_to_vector_type_value(s, <span class="prelude-val">Some</span>(dim)).unwrap();
<a href=#195 id=195 data-nosnippet>195</a> <span class="kw">let </span>s = vector_type_value_to_string(<span class="kw-2">&amp;</span>val, dim).unwrap();
<a href=#196 id=196 data-nosnippet>196</a> <span class="macro">assert_eq!</span>(s, <span class="kw-2">*</span>expected);
<a href=#197 id=197 data-nosnippet>197</a> }
<a href=#198 id=198 data-nosnippet>198</a> }
<a href=#199 id=199 data-nosnippet>199</a>
<a href=#200 id=200 data-nosnippet>200</a> <span class="attr">#[test]
<a href=#201 id=201 data-nosnippet>201</a> </span><span class="kw">fn </span>test_vector_type_value_to_string_wrong_byte_size() {
<a href=#202 id=202 data-nosnippet>202</a> <span class="kw">let </span>dim = <span class="number">3</span>;
<a href=#203 id=203 data-nosnippet>203</a> <span class="kw">let </span>val = <span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">7</span>, <span class="number">8</span>, <span class="number">9</span>, <span class="number">10</span>, <span class="number">11</span>];
<a href=#204 id=204 data-nosnippet>204</a> <span class="kw">let </span>res = vector_type_value_to_string(<span class="kw-2">&amp;</span>val, dim);
<a href=#205 id=205 data-nosnippet>205</a> <span class="macro">assert!</span>(res.is_err());
<a href=#206 id=206 data-nosnippet>206</a>
<a href=#207 id=207 data-nosnippet>207</a> <span class="kw">let </span>dim = <span class="number">0</span>;
<a href=#208 id=208 data-nosnippet>208</a> <span class="kw">let </span>val = <span class="macro">vec!</span>[<span class="number">1</span>];
<a href=#209 id=209 data-nosnippet>209</a> <span class="kw">let </span>res = vector_type_value_to_string(<span class="kw-2">&amp;</span>val, dim);
<a href=#210 id=210 data-nosnippet>210</a> <span class="macro">assert!</span>(res.is_err());
<a href=#211 id=211 data-nosnippet>211</a> }
<a href=#212 id=212 data-nosnippet>212</a>
<a href=#213 id=213 data-nosnippet>213</a> <span class="attr">#[test]
<a href=#214 id=214 data-nosnippet>214</a> </span><span class="kw">fn </span>test_parse_string_to_vector_type_value_not_properly_enclosed_in_brackets() {
<a href=#215 id=215 data-nosnippet>215</a> <span class="kw">let </span>dim = <span class="number">3</span>;
<a href=#216 id=216 data-nosnippet>216</a> <span class="kw">let </span>s = <span class="string">"1.0,2.0,3.0"</span>;
<a href=#217 id=217 data-nosnippet>217</a> <span class="kw">let </span>res = parse_string_to_vector_type_value(s, <span class="prelude-val">Some</span>(dim));
<a href=#218 id=218 data-nosnippet>218</a> <span class="macro">assert!</span>(res.is_err());
<a href=#219 id=219 data-nosnippet>219</a>
<a href=#220 id=220 data-nosnippet>220</a> <span class="kw">let </span>s = <span class="string">"[1.0,2.0,3.0"</span>;
<a href=#221 id=221 data-nosnippet>221</a> <span class="kw">let </span>res = parse_string_to_vector_type_value(s, <span class="prelude-val">Some</span>(dim));
<a href=#222 id=222 data-nosnippet>222</a> <span class="macro">assert!</span>(res.is_err());
<a href=#223 id=223 data-nosnippet>223</a>
<a href=#224 id=224 data-nosnippet>224</a> <span class="kw">let </span>s = <span class="string">"1.0,2.0,3.0]"</span>;
<a href=#225 id=225 data-nosnippet>225</a> <span class="kw">let </span>res = parse_string_to_vector_type_value(s, <span class="prelude-val">Some</span>(dim));
<a href=#226 id=226 data-nosnippet>226</a> <span class="macro">assert!</span>(res.is_err());
<a href=#227 id=227 data-nosnippet>227</a> }
<a href=#228 id=228 data-nosnippet>228</a>
<a href=#229 id=229 data-nosnippet>229</a> <span class="attr">#[test]
<a href=#230 id=230 data-nosnippet>230</a> </span><span class="kw">fn </span>test_parse_string_to_vector_type_value_wrong_dimension() {
<a href=#231 id=231 data-nosnippet>231</a> <span class="kw">let </span>dim = <span class="number">3</span>;
<a href=#232 id=232 data-nosnippet>232</a> <span class="kw">let </span>s = <span class="string">"[1.0,2.0]"</span>;
<a href=#233 id=233 data-nosnippet>233</a> <span class="kw">let </span>res = parse_string_to_vector_type_value(s, <span class="prelude-val">Some</span>(dim));
<a href=#234 id=234 data-nosnippet>234</a> <span class="macro">assert!</span>(res.is_err());
<a href=#235 id=235 data-nosnippet>235</a> }
<a href=#236 id=236 data-nosnippet>236</a>
<a href=#237 id=237 data-nosnippet>237</a> <span class="attr">#[test]
<a href=#238 id=238 data-nosnippet>238</a> </span><span class="kw">fn </span>test_parse_string_to_vector_type_value_elements_are_not_all_float32() {
<a href=#239 id=239 data-nosnippet>239</a> <span class="kw">let </span>dim = <span class="number">3</span>;
<a href=#240 id=240 data-nosnippet>240</a> <span class="kw">let </span>s = <span class="string">"[1.0,2.0,ah]"</span>;
<a href=#241 id=241 data-nosnippet>241</a> <span class="kw">let </span>res = parse_string_to_vector_type_value(s, <span class="prelude-val">Some</span>(dim));
<a href=#242 id=242 data-nosnippet>242</a> <span class="macro">assert!</span>(res.is_err());
<a href=#243 id=243 data-nosnippet>243</a> }
<a href=#244 id=244 data-nosnippet>244</a>}
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors.rs`."><title>vectors.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../static.files/storage-41dd4d93.js"></script><script defer src="../../static.files/src-script-813739b1.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/</div>vectors.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::any::Any;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::fmt::Debug;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>std::sync::Arc;
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>arrow::array::{Array, ArrayRef};
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>snafu::ensure;
<a href=#21 id=21 data-nosnippet>21</a>
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, <span class="prelude-ty">Result</span>};
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::value::{Value, ValueRef};
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::vectors::operations::VectorOp;
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">mod </span>binary;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">mod </span>boolean;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">mod </span>date;
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">mod </span>decimal;
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">mod </span>dictionary;
<a href=#33 id=33 data-nosnippet>33</a><span class="kw">mod </span>duration;
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">mod </span>eq;
<a href=#35 id=35 data-nosnippet>35</a><span class="kw">mod </span>helper;
<a href=#36 id=36 data-nosnippet>36</a><span class="kw">mod </span>interval;
<a href=#37 id=37 data-nosnippet>37</a><span class="kw">pub mod </span>json;
<a href=#38 id=38 data-nosnippet>38</a><span class="kw">mod </span>list;
<a href=#39 id=39 data-nosnippet>39</a><span class="kw">mod </span>null;
<a href=#40 id=40 data-nosnippet>40</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>operations;
<a href=#41 id=41 data-nosnippet>41</a><span class="kw">mod </span>primitive;
<a href=#42 id=42 data-nosnippet>42</a><span class="kw">mod </span>string;
<a href=#43 id=43 data-nosnippet>43</a><span class="kw">mod </span>struct_vector;
<a href=#44 id=44 data-nosnippet>44</a><span class="kw">mod </span>time;
<a href=#45 id=45 data-nosnippet>45</a><span class="kw">mod </span>timestamp;
<a href=#46 id=46 data-nosnippet>46</a><span class="kw">mod </span>validity;
<a href=#47 id=47 data-nosnippet>47</a>
<a href=#48 id=48 data-nosnippet>48</a><span class="kw">pub use </span>binary::{BinaryVector, BinaryVectorBuilder};
<a href=#49 id=49 data-nosnippet>49</a><span class="kw">pub use </span>boolean::{BooleanVector, BooleanVectorBuilder};
<a href=#50 id=50 data-nosnippet>50</a><span class="kw">pub use </span>date::{DateVector, DateVectorBuilder};
<a href=#51 id=51 data-nosnippet>51</a><span class="kw">pub use </span>decimal::{Decimal128Vector, Decimal128VectorBuilder};
<a href=#52 id=52 data-nosnippet>52</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>dictionary::StringDictionaryVectorBuilder;
<a href=#53 id=53 data-nosnippet>53</a><span class="kw">pub use </span>dictionary::{DictionaryIter, DictionaryVector};
<a href=#54 id=54 data-nosnippet>54</a><span class="kw">pub use </span>duration::{
<a href=#55 id=55 data-nosnippet>55</a> DurationMicrosecondVector, DurationMicrosecondVectorBuilder, DurationMillisecondVector,
<a href=#56 id=56 data-nosnippet>56</a> DurationMillisecondVectorBuilder, DurationNanosecondVector, DurationNanosecondVectorBuilder,
<a href=#57 id=57 data-nosnippet>57</a> DurationSecondVector, DurationSecondVectorBuilder,
<a href=#58 id=58 data-nosnippet>58</a>};
<a href=#59 id=59 data-nosnippet>59</a><span class="kw">pub use </span>helper::Helper;
<a href=#60 id=60 data-nosnippet>60</a><span class="kw">pub use </span>interval::{
<a href=#61 id=61 data-nosnippet>61</a> IntervalDayTimeVector, IntervalDayTimeVectorBuilder, IntervalMonthDayNanoVector,
<a href=#62 id=62 data-nosnippet>62</a> IntervalMonthDayNanoVectorBuilder, IntervalYearMonthVector, IntervalYearMonthVectorBuilder,
<a href=#63 id=63 data-nosnippet>63</a>};
<a href=#64 id=64 data-nosnippet>64</a><span class="kw">pub use </span>list::{ListIter, ListVector, ListVectorBuilder};
<a href=#65 id=65 data-nosnippet>65</a><span class="kw">pub use </span>null::{NullVector, NullVectorBuilder};
<a href=#66 id=66 data-nosnippet>66</a><span class="kw">pub use </span>primitive::{
<a href=#67 id=67 data-nosnippet>67</a> Float32Vector, Float32VectorBuilder, Float64Vector, Float64VectorBuilder, Int8Vector,
<a href=#68 id=68 data-nosnippet>68</a> Int8VectorBuilder, Int16Vector, Int16VectorBuilder, Int32Vector, Int32VectorBuilder,
<a href=#69 id=69 data-nosnippet>69</a> Int64Vector, Int64VectorBuilder, PrimitiveIter, PrimitiveVector, PrimitiveVectorBuilder,
<a href=#70 id=70 data-nosnippet>70</a> UInt8Vector, UInt8VectorBuilder, UInt16Vector, UInt16VectorBuilder, UInt32Vector,
<a href=#71 id=71 data-nosnippet>71</a> UInt32VectorBuilder, UInt64Vector, UInt64VectorBuilder,
<a href=#72 id=72 data-nosnippet>72</a>};
<a href=#73 id=73 data-nosnippet>73</a><span class="kw">pub use </span>string::{StringVector, StringVectorBuilder};
<a href=#74 id=74 data-nosnippet>74</a><span class="kw">pub use </span>struct_vector::{StructVector, StructVectorBuilder};
<a href=#75 id=75 data-nosnippet>75</a><span class="kw">pub use </span>time::{
<a href=#76 id=76 data-nosnippet>76</a> TimeMicrosecondVector, TimeMicrosecondVectorBuilder, TimeMillisecondVector,
<a href=#77 id=77 data-nosnippet>77</a> TimeMillisecondVectorBuilder, TimeNanosecondVector, TimeNanosecondVectorBuilder,
<a href=#78 id=78 data-nosnippet>78</a> TimeSecondVector, TimeSecondVectorBuilder,
<a href=#79 id=79 data-nosnippet>79</a>};
<a href=#80 id=80 data-nosnippet>80</a><span class="kw">pub use </span>timestamp::{
<a href=#81 id=81 data-nosnippet>81</a> TimestampMicrosecondVector, TimestampMicrosecondVectorBuilder, TimestampMillisecondVector,
<a href=#82 id=82 data-nosnippet>82</a> TimestampMillisecondVectorBuilder, TimestampNanosecondVector, TimestampNanosecondVectorBuilder,
<a href=#83 id=83 data-nosnippet>83</a> TimestampSecondVector, TimestampSecondVectorBuilder,
<a href=#84 id=84 data-nosnippet>84</a>};
<a href=#85 id=85 data-nosnippet>85</a><span class="kw">pub use </span>validity::Validity;
<a href=#86 id=86 data-nosnippet>86</a>
<a href=#87 id=87 data-nosnippet>87</a><span class="comment">// TODO(yingwen): arrow 28.0 implements Clone for all arrays, we could upgrade to it and simplify
<a href=#88 id=88 data-nosnippet>88</a>// some codes in methods such as `to_arrow_array()` and `to_boxed_arrow_array()`.
<a href=#89 id=89 data-nosnippet>89</a></span><span class="doccomment">/// Vector of data values.
<a href=#90 id=90 data-nosnippet>90</a></span><span class="kw">pub trait </span>Vector: Send + Sync + Serializable + Debug + VectorOp {
<a href=#91 id=91 data-nosnippet>91</a> <span class="doccomment">/// Returns the data type of the vector.
<a href=#92 id=92 data-nosnippet>92</a> ///
<a href=#93 id=93 data-nosnippet>93</a> /// This may require heap allocation.
<a href=#94 id=94 data-nosnippet>94</a> </span><span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType;
<a href=#95 id=95 data-nosnippet>95</a>
<a href=#96 id=96 data-nosnippet>96</a> <span class="kw">fn </span>vector_type_name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String;
<a href=#97 id=97 data-nosnippet>97</a>
<a href=#98 id=98 data-nosnippet>98</a> <span class="doccomment">/// Returns the vector as [Any](std::any::Any) so that it can be
<a href=#99 id=99 data-nosnippet>99</a> /// downcast to a specific implementation.
<a href=#100 id=100 data-nosnippet>100</a> </span><span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any;
<a href=#101 id=101 data-nosnippet>101</a>
<a href=#102 id=102 data-nosnippet>102</a> <span class="doccomment">/// Returns number of elements in the vector.
<a href=#103 id=103 data-nosnippet>103</a> </span><span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize;
<a href=#104 id=104 data-nosnippet>104</a>
<a href=#105 id=105 data-nosnippet>105</a> <span class="doccomment">/// Returns whether the vector is empty.
<a href=#106 id=106 data-nosnippet>106</a> </span><span class="kw">fn </span>is_empty(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#107 id=107 data-nosnippet>107</a> <span class="self">self</span>.len() == <span class="number">0
<a href=#108 id=108 data-nosnippet>108</a> </span>}
<a href=#109 id=109 data-nosnippet>109</a>
<a href=#110 id=110 data-nosnippet>110</a> <span class="doccomment">/// Convert this vector to a new arrow [ArrayRef].
<a href=#111 id=111 data-nosnippet>111</a> </span><span class="kw">fn </span>to_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrayRef;
<a href=#112 id=112 data-nosnippet>112</a>
<a href=#113 id=113 data-nosnippet>113</a> <span class="doccomment">/// Convert this vector to a new boxed arrow [Array].
<a href=#114 id=114 data-nosnippet>114</a> </span><span class="kw">fn </span>to_boxed_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Box&lt;<span class="kw">dyn </span>Array&gt;;
<a href=#115 id=115 data-nosnippet>115</a>
<a href=#116 id=116 data-nosnippet>116</a> <span class="doccomment">/// Returns the validity of the Array.
<a href=#117 id=117 data-nosnippet>117</a> </span><span class="kw">fn </span>validity(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Validity;
<a href=#118 id=118 data-nosnippet>118</a>
<a href=#119 id=119 data-nosnippet>119</a> <span class="doccomment">/// Returns the memory size of vector.
<a href=#120 id=120 data-nosnippet>120</a> </span><span class="kw">fn </span>memory_size(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize;
<a href=#121 id=121 data-nosnippet>121</a>
<a href=#122 id=122 data-nosnippet>122</a> <span class="doccomment">/// The number of null slots on this [`Vector`].
<a href=#123 id=123 data-nosnippet>123</a> /// # Implementation
<a href=#124 id=124 data-nosnippet>124</a> /// This is `O(1)`.
<a href=#125 id=125 data-nosnippet>125</a> </span><span class="kw">fn </span>null_count(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize;
<a href=#126 id=126 data-nosnippet>126</a>
<a href=#127 id=127 data-nosnippet>127</a> <span class="doccomment">/// Returns whether row is null.
<a href=#128 id=128 data-nosnippet>128</a> </span><span class="kw">fn </span>is_null(<span class="kw-2">&amp;</span><span class="self">self</span>, row: usize) -&gt; bool;
<a href=#129 id=129 data-nosnippet>129</a>
<a href=#130 id=130 data-nosnippet>130</a> <span class="doccomment">/// If the vector only contains NULL.
<a href=#131 id=131 data-nosnippet>131</a> </span><span class="kw">fn </span>only_null(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#132 id=132 data-nosnippet>132</a> <span class="self">self</span>.null_count() == <span class="self">self</span>.len()
<a href=#133 id=133 data-nosnippet>133</a> }
<a href=#134 id=134 data-nosnippet>134</a>
<a href=#135 id=135 data-nosnippet>135</a> <span class="doccomment">/// Slices the `Vector`, returning a new `VectorRef`.
<a href=#136 id=136 data-nosnippet>136</a> ///
<a href=#137 id=137 data-nosnippet>137</a> /// # Panics
<a href=#138 id=138 data-nosnippet>138</a> /// This function panics if `offset + length &gt; self.len()`.
<a href=#139 id=139 data-nosnippet>139</a> </span><span class="kw">fn </span>slice(<span class="kw-2">&amp;</span><span class="self">self</span>, offset: usize, length: usize) -&gt; VectorRef;
<a href=#140 id=140 data-nosnippet>140</a>
<a href=#141 id=141 data-nosnippet>141</a> <span class="doccomment">/// Returns the clone of value at `index`.
<a href=#142 id=142 data-nosnippet>142</a> ///
<a href=#143 id=143 data-nosnippet>143</a> /// # Panics
<a href=#144 id=144 data-nosnippet>144</a> /// Panic if `index` is out of bound.
<a href=#145 id=145 data-nosnippet>145</a> </span><span class="kw">fn </span>get(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; Value;
<a href=#146 id=146 data-nosnippet>146</a>
<a href=#147 id=147 data-nosnippet>147</a> <span class="doccomment">/// Returns the clone of value at `index` or error if `index`
<a href=#148 id=148 data-nosnippet>148</a> /// is out of bound.
<a href=#149 id=149 data-nosnippet>149</a> </span><span class="kw">fn </span>try_get(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; <span class="prelude-ty">Result</span>&lt;Value&gt; {
<a href=#150 id=150 data-nosnippet>150</a> <span class="macro">ensure!</span>(
<a href=#151 id=151 data-nosnippet>151</a> index &lt; <span class="self">self</span>.len(),
<a href=#152 id=152 data-nosnippet>152</a> error::BadArrayAccessSnafu {
<a href=#153 id=153 data-nosnippet>153</a> index,
<a href=#154 id=154 data-nosnippet>154</a> size: <span class="self">self</span>.len()
<a href=#155 id=155 data-nosnippet>155</a> }
<a href=#156 id=156 data-nosnippet>156</a> );
<a href=#157 id=157 data-nosnippet>157</a> <span class="prelude-val">Ok</span>(<span class="self">self</span>.get(index))
<a href=#158 id=158 data-nosnippet>158</a> }
<a href=#159 id=159 data-nosnippet>159</a>
<a href=#160 id=160 data-nosnippet>160</a> <span class="doccomment">/// Returns the reference of value at `index`.
<a href=#161 id=161 data-nosnippet>161</a> ///
<a href=#162 id=162 data-nosnippet>162</a> /// # Panics
<a href=#163 id=163 data-nosnippet>163</a> /// Panic if `index` is out of bound.
<a href=#164 id=164 data-nosnippet>164</a> </span><span class="kw">fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; ValueRef&lt;<span class="lifetime">'_</span>&gt;;
<a href=#165 id=165 data-nosnippet>165</a>}
<a href=#166 id=166 data-nosnippet>166</a>
<a href=#167 id=167 data-nosnippet>167</a><span class="kw">pub type </span>VectorRef = Arc&lt;<span class="kw">dyn </span>Vector&gt;;
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a><span class="doccomment">/// Mutable vector that could be used to build an immutable vector.
<a href=#170 id=170 data-nosnippet>170</a></span><span class="kw">pub trait </span>MutableVector: Send + Sync {
<a href=#171 id=171 data-nosnippet>171</a> <span class="doccomment">/// Returns the data type of the vector.
<a href=#172 id=172 data-nosnippet>172</a> </span><span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType;
<a href=#173 id=173 data-nosnippet>173</a>
<a href=#174 id=174 data-nosnippet>174</a> <span class="doccomment">/// Returns the length of the vector.
<a href=#175 id=175 data-nosnippet>175</a> </span><span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize;
<a href=#176 id=176 data-nosnippet>176</a>
<a href=#177 id=177 data-nosnippet>177</a> <span class="doccomment">/// Returns whether the vector is empty.
<a href=#178 id=178 data-nosnippet>178</a> </span><span class="kw">fn </span>is_empty(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#179 id=179 data-nosnippet>179</a> <span class="self">self</span>.len() == <span class="number">0
<a href=#180 id=180 data-nosnippet>180</a> </span>}
<a href=#181 id=181 data-nosnippet>181</a>
<a href=#182 id=182 data-nosnippet>182</a> <span class="doccomment">/// Convert to Any, to enable dynamic casting.
<a href=#183 id=183 data-nosnippet>183</a> </span><span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any;
<a href=#184 id=184 data-nosnippet>184</a>
<a href=#185 id=185 data-nosnippet>185</a> <span class="doccomment">/// Convert to mutable Any, to enable dynamic casting.
<a href=#186 id=186 data-nosnippet>186</a> </span><span class="kw">fn </span>as_mut_any(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span><span class="kw">dyn </span>Any;
<a href=#187 id=187 data-nosnippet>187</a>
<a href=#188 id=188 data-nosnippet>188</a> <span class="doccomment">/// Convert `self` to an (immutable) [VectorRef] and reset `self`.
<a href=#189 id=189 data-nosnippet>189</a> </span><span class="kw">fn </span>to_vector(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; VectorRef;
<a href=#190 id=190 data-nosnippet>190</a>
<a href=#191 id=191 data-nosnippet>191</a> <span class="doccomment">/// Convert `self` to an (immutable) [VectorRef] and without resetting `self`.
<a href=#192 id=192 data-nosnippet>192</a> </span><span class="kw">fn </span>to_vector_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; VectorRef;
<a href=#193 id=193 data-nosnippet>193</a>
<a href=#194 id=194 data-nosnippet>194</a> <span class="doccomment">/// Try to push value ref to this mutable vector.
<a href=#195 id=195 data-nosnippet>195</a> </span><span class="kw">fn </span>try_push_value_ref(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt;;
<a href=#196 id=196 data-nosnippet>196</a>
<a href=#197 id=197 data-nosnippet>197</a> <span class="doccomment">/// Push value ref to this mutable vector.
<a href=#198 id=198 data-nosnippet>198</a> ///
<a href=#199 id=199 data-nosnippet>199</a> /// # Panics
<a href=#200 id=200 data-nosnippet>200</a> /// Panics if error if data types mismatch.
<a href=#201 id=201 data-nosnippet>201</a> </span><span class="kw">fn </span>push_value_ref(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="kw-2">&amp;</span>ValueRef) {
<a href=#202 id=202 data-nosnippet>202</a> <span class="self">self</span>.try_push_value_ref(value).unwrap_or_else(|<span class="kw">_</span>| {
<a href=#203 id=203 data-nosnippet>203</a> <span class="macro">panic!</span>(
<a href=#204 id=204 data-nosnippet>204</a> <span class="string">"expecting pushing value of datatype {:?}, actual {:?}"</span>,
<a href=#205 id=205 data-nosnippet>205</a> <span class="self">self</span>.data_type(),
<a href=#206 id=206 data-nosnippet>206</a> value
<a href=#207 id=207 data-nosnippet>207</a> );
<a href=#208 id=208 data-nosnippet>208</a> });
<a href=#209 id=209 data-nosnippet>209</a> }
<a href=#210 id=210 data-nosnippet>210</a>
<a href=#211 id=211 data-nosnippet>211</a> <span class="doccomment">/// Push null to this mutable vector.
<a href=#212 id=212 data-nosnippet>212</a> </span><span class="kw">fn </span>push_null(<span class="kw-2">&amp;mut </span><span class="self">self</span>);
<a href=#213 id=213 data-nosnippet>213</a>
<a href=#214 id=214 data-nosnippet>214</a> <span class="doccomment">/// Push nulls to this mutable vector.
<a href=#215 id=215 data-nosnippet>215</a> </span><span class="kw">fn </span>push_nulls(<span class="kw-2">&amp;mut </span><span class="self">self</span>, num_nulls: usize) {
<a href=#216 id=216 data-nosnippet>216</a> <span class="kw">for _ in </span><span class="number">0</span>..num_nulls {
<a href=#217 id=217 data-nosnippet>217</a> <span class="self">self</span>.push_null();
<a href=#218 id=218 data-nosnippet>218</a> }
<a href=#219 id=219 data-nosnippet>219</a> }
<a href=#220 id=220 data-nosnippet>220</a>
<a href=#221 id=221 data-nosnippet>221</a> <span class="doccomment">/// Extend this mutable vector by slice of `vector`.
<a href=#222 id=222 data-nosnippet>222</a> ///
<a href=#223 id=223 data-nosnippet>223</a> /// Returns error if data types mismatch.
<a href=#224 id=224 data-nosnippet>224</a> ///
<a href=#225 id=225 data-nosnippet>225</a> /// # Panics
<a href=#226 id=226 data-nosnippet>226</a> /// Panics if `offset + length &gt; vector.len()`.
<a href=#227 id=227 data-nosnippet>227</a> </span><span class="kw">fn </span>extend_slice_of(<span class="kw-2">&amp;mut </span><span class="self">self</span>, vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector, offset: usize, length: usize) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt;;
<a href=#228 id=228 data-nosnippet>228</a>}
<a href=#229 id=229 data-nosnippet>229</a>
<a href=#230 id=230 data-nosnippet>230</a><span class="doccomment">/// Helper to define `try_from_arrow_array(array: arrow::array::ArrayRef)` function.
<a href=#231 id=231 data-nosnippet>231</a></span><span class="macro">macro_rules!</span> impl_try_from_arrow_array_for_vector {
<a href=#232 id=232 data-nosnippet>232</a> (<span class="macro-nonterminal">$Array</span>: ident, <span class="macro-nonterminal">$Vector</span>: ident) =&gt; {
<a href=#233 id=233 data-nosnippet>233</a> <span class="kw">impl </span><span class="macro-nonterminal">$Vector </span>{
<a href=#234 id=234 data-nosnippet>234</a> <span class="kw">pub fn </span>try_from_arrow_array(
<a href=#235 id=235 data-nosnippet>235</a> array: <span class="kw">impl </span>AsRef&lt;<span class="kw">dyn </span>arrow::array::Array&gt;,
<a href=#236 id=236 data-nosnippet>236</a> ) -&gt; <span class="kw">crate</span>::error::Result&lt;<span class="macro-nonterminal">$Vector</span>&gt; {
<a href=#237 id=237 data-nosnippet>237</a> <span class="kw">use </span>snafu::OptionExt;
<a href=#238 id=238 data-nosnippet>238</a>
<a href=#239 id=239 data-nosnippet>239</a> <span class="kw">let </span>arrow_array = array
<a href=#240 id=240 data-nosnippet>240</a> .as_ref()
<a href=#241 id=241 data-nosnippet>241</a> .as_any()
<a href=#242 id=242 data-nosnippet>242</a> .downcast_ref::&lt;<span class="macro-nonterminal">$Array</span>&gt;()
<a href=#243 id=243 data-nosnippet>243</a> .with_context(|| <span class="kw">crate</span>::error::ConversionSnafu {
<a href=#244 id=244 data-nosnippet>244</a> from: <span class="macro">std::format!</span>(<span class="string">"{:?}"</span>, array.as_ref().data_type()),
<a href=#245 id=245 data-nosnippet>245</a> })<span class="question-mark">?
<a href=#246 id=246 data-nosnippet>246</a> </span>.clone();
<a href=#247 id=247 data-nosnippet>247</a>
<a href=#248 id=248 data-nosnippet>248</a> <span class="prelude-val">Ok</span>(<span class="macro-nonterminal">$Vector::from</span>(arrow_array))
<a href=#249 id=249 data-nosnippet>249</a> }
<a href=#250 id=250 data-nosnippet>250</a> }
<a href=#251 id=251 data-nosnippet>251</a> };
<a href=#252 id=252 data-nosnippet>252</a>}
<a href=#253 id=253 data-nosnippet>253</a>
<a href=#254 id=254 data-nosnippet>254</a><span class="macro">macro_rules!</span> impl_validity_for_vector {
<a href=#255 id=255 data-nosnippet>255</a> (<span class="macro-nonterminal">$array</span>: expr) =&gt; {
<a href=#256 id=256 data-nosnippet>256</a> Validity::from_array_data(<span class="macro-nonterminal">$array</span>.to_data())
<a href=#257 id=257 data-nosnippet>257</a> };
<a href=#258 id=258 data-nosnippet>258</a>}
<a href=#259 id=259 data-nosnippet>259</a>
<a href=#260 id=260 data-nosnippet>260</a><span class="macro">macro_rules!</span> impl_get_for_vector {
<a href=#261 id=261 data-nosnippet>261</a> (<span class="macro-nonterminal">$array</span>: expr, <span class="macro-nonterminal">$index</span>: ident) =&gt; {
<a href=#262 id=262 data-nosnippet>262</a> <span class="kw">if </span><span class="macro-nonterminal">$array</span>.is_valid(<span class="macro-nonterminal">$index</span>) {
<a href=#263 id=263 data-nosnippet>263</a> <span class="comment">// Safety: The index have been checked by `is_valid()`.
<a href=#264 id=264 data-nosnippet>264</a> </span><span class="kw">unsafe </span>{ <span class="macro-nonterminal">$array</span>.value_unchecked(<span class="macro-nonterminal">$index</span>).into() }
<a href=#265 id=265 data-nosnippet>265</a> } <span class="kw">else </span>{
<a href=#266 id=266 data-nosnippet>266</a> Value::Null
<a href=#267 id=267 data-nosnippet>267</a> }
<a href=#268 id=268 data-nosnippet>268</a> };
<a href=#269 id=269 data-nosnippet>269</a>}
<a href=#270 id=270 data-nosnippet>270</a>
<a href=#271 id=271 data-nosnippet>271</a><span class="macro">macro_rules!</span> impl_get_ref_for_vector {
<a href=#272 id=272 data-nosnippet>272</a> (<span class="macro-nonterminal">$array</span>: expr, <span class="macro-nonterminal">$index</span>: ident) =&gt; {
<a href=#273 id=273 data-nosnippet>273</a> <span class="kw">if </span><span class="macro-nonterminal">$array</span>.is_valid(<span class="macro-nonterminal">$index</span>) {
<a href=#274 id=274 data-nosnippet>274</a> <span class="comment">// Safety: The index have been checked by `is_valid()`.
<a href=#275 id=275 data-nosnippet>275</a> </span><span class="kw">unsafe </span>{ <span class="macro-nonterminal">$array</span>.value_unchecked(<span class="macro-nonterminal">$index</span>).into() }
<a href=#276 id=276 data-nosnippet>276</a> } <span class="kw">else </span>{
<a href=#277 id=277 data-nosnippet>277</a> ValueRef::Null
<a href=#278 id=278 data-nosnippet>278</a> }
<a href=#279 id=279 data-nosnippet>279</a> };
<a href=#280 id=280 data-nosnippet>280</a>}
<a href=#281 id=281 data-nosnippet>281</a>
<a href=#282 id=282 data-nosnippet>282</a><span class="macro">macro_rules!</span> impl_extend_for_builder {
<a href=#283 id=283 data-nosnippet>283</a> (<span class="macro-nonterminal">$mutable_vector</span>: expr, <span class="macro-nonterminal">$vector</span>: ident, <span class="macro-nonterminal">$VectorType</span>: ident, <span class="macro-nonterminal">$offset</span>: ident, <span class="macro-nonterminal">$length</span>: ident) =&gt; {{
<a href=#284 id=284 data-nosnippet>284</a> <span class="kw">use </span>snafu::OptionExt;
<a href=#285 id=285 data-nosnippet>285</a>
<a href=#286 id=286 data-nosnippet>286</a> <span class="kw">let </span>sliced_vector = <span class="macro-nonterminal">$vector</span>.slice(<span class="macro-nonterminal">$offset</span>, <span class="macro-nonterminal">$length</span>);
<a href=#287 id=287 data-nosnippet>287</a> <span class="kw">let </span>concrete_vector = sliced_vector
<a href=#288 id=288 data-nosnippet>288</a> .as_any()
<a href=#289 id=289 data-nosnippet>289</a> .downcast_ref::&lt;<span class="macro-nonterminal">$VectorType</span>&gt;()
<a href=#290 id=290 data-nosnippet>290</a> .with_context(|| <span class="kw">crate</span>::error::CastTypeSnafu {
<a href=#291 id=291 data-nosnippet>291</a> msg: <span class="macro">format!</span>(
<a href=#292 id=292 data-nosnippet>292</a> <span class="string">"Failed to cast vector from {} to {}"</span>,
<a href=#293 id=293 data-nosnippet>293</a> <span class="macro-nonterminal">$vector</span>.vector_type_name(),
<a href=#294 id=294 data-nosnippet>294</a> <span class="macro">stringify!</span>(<span class="macro-nonterminal">$VectorType</span>)
<a href=#295 id=295 data-nosnippet>295</a> ),
<a href=#296 id=296 data-nosnippet>296</a> })<span class="question-mark">?</span>;
<a href=#297 id=297 data-nosnippet>297</a> <span class="kw">for </span>value <span class="kw">in </span>concrete_vector.iter_data() {
<a href=#298 id=298 data-nosnippet>298</a> <span class="macro-nonterminal">$mutable_vector</span>.push(value);
<a href=#299 id=299 data-nosnippet>299</a> }
<a href=#300 id=300 data-nosnippet>300</a> <span class="prelude-val">Ok</span>(())
<a href=#301 id=301 data-nosnippet>301</a> }};
<a href=#302 id=302 data-nosnippet>302</a>}
<a href=#303 id=303 data-nosnippet>303</a>
<a href=#304 id=304 data-nosnippet>304</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>impl_extend_for_builder;
<a href=#305 id=305 data-nosnippet>305</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>impl_get_for_vector;
<a href=#306 id=306 data-nosnippet>306</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>impl_get_ref_for_vector;
<a href=#307 id=307 data-nosnippet>307</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>impl_try_from_arrow_array_for_vector;
<a href=#308 id=308 data-nosnippet>308</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>impl_validity_for_vector;
<a href=#309 id=309 data-nosnippet>309</a>
<a href=#310 id=310 data-nosnippet>310</a><span class="attr">#[cfg(test)]
<a href=#311 id=311 data-nosnippet>311</a></span><span class="kw">pub mod </span>tests {
<a href=#312 id=312 data-nosnippet>312</a> <span class="kw">use </span>arrow::array::{Array, Int32Array, UInt8Array};
<a href=#313 id=313 data-nosnippet>313</a> <span class="kw">use </span>paste::paste;
<a href=#314 id=314 data-nosnippet>314</a> <span class="kw">use </span>serde_json;
<a href=#315 id=315 data-nosnippet>315</a>
<a href=#316 id=316 data-nosnippet>316</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#317 id=317 data-nosnippet>317</a> <span class="kw">use </span><span class="kw">crate</span>::data_type::DataType;
<a href=#318 id=318 data-nosnippet>318</a> <span class="kw">use </span><span class="kw">crate</span>::prelude::ScalarVectorBuilder;
<a href=#319 id=319 data-nosnippet>319</a> <span class="kw">use </span><span class="kw">crate</span>::types::{Int32Type, LogicalPrimitiveType};
<a href=#320 id=320 data-nosnippet>320</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::helper::Helper;
<a href=#321 id=321 data-nosnippet>321</a>
<a href=#322 id=322 data-nosnippet>322</a> <span class="attr">#[test]
<a href=#323 id=323 data-nosnippet>323</a> </span><span class="kw">fn </span>test_df_columns_to_vector() {
<a href=#324 id=324 data-nosnippet>324</a> <span class="kw">let </span>df_column: Arc&lt;<span class="kw">dyn </span>Array&gt; = Arc::new(Int32Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#325 id=325 data-nosnippet>325</a> <span class="kw">let </span>vector = Helper::try_into_vector(df_column).unwrap();
<a href=#326 id=326 data-nosnippet>326</a> <span class="macro">assert_eq!</span>(
<a href=#327 id=327 data-nosnippet>327</a> Int32Type::build_data_type().as_arrow_type(),
<a href=#328 id=328 data-nosnippet>328</a> vector.data_type().as_arrow_type()
<a href=#329 id=329 data-nosnippet>329</a> );
<a href=#330 id=330 data-nosnippet>330</a> }
<a href=#331 id=331 data-nosnippet>331</a>
<a href=#332 id=332 data-nosnippet>332</a> <span class="attr">#[test]
<a href=#333 id=333 data-nosnippet>333</a> </span><span class="kw">fn </span>test_serialize_i32_vector() {
<a href=#334 id=334 data-nosnippet>334</a> <span class="kw">let </span>df_column: Arc&lt;<span class="kw">dyn </span>Array&gt; = Arc::new(Int32Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#335 id=335 data-nosnippet>335</a> <span class="kw">let </span>json_value = Helper::try_into_vector(df_column)
<a href=#336 id=336 data-nosnippet>336</a> .unwrap()
<a href=#337 id=337 data-nosnippet>337</a> .serialize_to_json()
<a href=#338 id=338 data-nosnippet>338</a> .unwrap();
<a href=#339 id=339 data-nosnippet>339</a> <span class="macro">assert_eq!</span>(<span class="string">"[1,2,3]"</span>, serde_json::to_string(<span class="kw-2">&amp;</span>json_value).unwrap());
<a href=#340 id=340 data-nosnippet>340</a> }
<a href=#341 id=341 data-nosnippet>341</a>
<a href=#342 id=342 data-nosnippet>342</a> <span class="attr">#[test]
<a href=#343 id=343 data-nosnippet>343</a> </span><span class="kw">fn </span>test_serialize_i8_vector() {
<a href=#344 id=344 data-nosnippet>344</a> <span class="kw">let </span>df_column: Arc&lt;<span class="kw">dyn </span>Array&gt; = Arc::new(UInt8Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#345 id=345 data-nosnippet>345</a> <span class="kw">let </span>json_value = Helper::try_into_vector(df_column)
<a href=#346 id=346 data-nosnippet>346</a> .unwrap()
<a href=#347 id=347 data-nosnippet>347</a> .serialize_to_json()
<a href=#348 id=348 data-nosnippet>348</a> .unwrap();
<a href=#349 id=349 data-nosnippet>349</a> <span class="macro">assert_eq!</span>(<span class="string">"[1,2,3]"</span>, serde_json::to_string(<span class="kw-2">&amp;</span>json_value).unwrap());
<a href=#350 id=350 data-nosnippet>350</a> }
<a href=#351 id=351 data-nosnippet>351</a>
<a href=#352 id=352 data-nosnippet>352</a> <span class="attr">#[test]
<a href=#353 id=353 data-nosnippet>353</a> </span><span class="kw">fn </span>test_mutable_vector_data_type() {
<a href=#354 id=354 data-nosnippet>354</a> <span class="macro">macro_rules!</span> mutable_primitive_data_type_eq_with_lower {
<a href=#355 id=355 data-nosnippet>355</a> ($(<span class="macro-nonterminal">$type</span>: ident),<span class="kw-2">*</span>) =&gt; {
<a href=#356 id=356 data-nosnippet>356</a> $(
<a href=#357 id=357 data-nosnippet>357</a> <span class="macro">paste!</span> {
<a href=#358 id=358 data-nosnippet>358</a> <span class="kw">let </span>mutable_vector = [&lt;<span class="macro-nonterminal">$type </span>VectorBuilder&gt;]::with_capacity(<span class="number">1024</span>);
<a href=#359 id=359 data-nosnippet>359</a> <span class="macro">assert_eq!</span>(mutable_vector.data_type(), ConcreteDataType::[&lt;<span class="macro-nonterminal">$type</span>:lower _datatype&gt;]());
<a href=#360 id=360 data-nosnippet>360</a> }
<a href=#361 id=361 data-nosnippet>361</a> )*
<a href=#362 id=362 data-nosnippet>362</a> };
<a href=#363 id=363 data-nosnippet>363</a> }
<a href=#364 id=364 data-nosnippet>364</a>
<a href=#365 id=365 data-nosnippet>365</a> <span class="macro">macro_rules!</span> mutable_time_data_type_eq_with_snake {
<a href=#366 id=366 data-nosnippet>366</a> ($(<span class="macro-nonterminal">$type</span>: ident),<span class="kw-2">*</span>) =&gt; {
<a href=#367 id=367 data-nosnippet>367</a> $(
<a href=#368 id=368 data-nosnippet>368</a> <span class="macro">paste!</span> {
<a href=#369 id=369 data-nosnippet>369</a> <span class="kw">let </span>mutable_vector = [&lt;<span class="macro-nonterminal">$type </span>VectorBuilder&gt;]::with_capacity(<span class="number">1024</span>);
<a href=#370 id=370 data-nosnippet>370</a> <span class="macro">assert_eq!</span>(mutable_vector.data_type(), ConcreteDataType::[&lt;<span class="macro-nonterminal">$type</span>:snake _datatype&gt;]());
<a href=#371 id=371 data-nosnippet>371</a> }
<a href=#372 id=372 data-nosnippet>372</a> )*
<a href=#373 id=373 data-nosnippet>373</a> };
<a href=#374 id=374 data-nosnippet>374</a> }
<a href=#375 id=375 data-nosnippet>375</a> <span class="comment">// Test Primitive types
<a href=#376 id=376 data-nosnippet>376</a> </span><span class="macro">mutable_primitive_data_type_eq_with_lower!</span>(
<a href=#377 id=377 data-nosnippet>377</a> Boolean, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Float32, Float64,
<a href=#378 id=378 data-nosnippet>378</a> Date, Binary, String
<a href=#379 id=379 data-nosnippet>379</a> );
<a href=#380 id=380 data-nosnippet>380</a>
<a href=#381 id=381 data-nosnippet>381</a> <span class="comment">// Test types about time
<a href=#382 id=382 data-nosnippet>382</a> </span><span class="macro">mutable_time_data_type_eq_with_snake!</span>(
<a href=#383 id=383 data-nosnippet>383</a> TimeSecond,
<a href=#384 id=384 data-nosnippet>384</a> TimeMillisecond,
<a href=#385 id=385 data-nosnippet>385</a> TimeMicrosecond,
<a href=#386 id=386 data-nosnippet>386</a> TimeNanosecond,
<a href=#387 id=387 data-nosnippet>387</a> TimestampSecond,
<a href=#388 id=388 data-nosnippet>388</a> TimestampMillisecond,
<a href=#389 id=389 data-nosnippet>389</a> TimestampMicrosecond,
<a href=#390 id=390 data-nosnippet>390</a> TimestampNanosecond,
<a href=#391 id=391 data-nosnippet>391</a> DurationSecond,
<a href=#392 id=392 data-nosnippet>392</a> DurationMillisecond,
<a href=#393 id=393 data-nosnippet>393</a> DurationMicrosecond,
<a href=#394 id=394 data-nosnippet>394</a> DurationNanosecond,
<a href=#395 id=395 data-nosnippet>395</a> IntervalYearMonth,
<a href=#396 id=396 data-nosnippet>396</a> IntervalDayTime,
<a href=#397 id=397 data-nosnippet>397</a> IntervalMonthDayNano
<a href=#398 id=398 data-nosnippet>398</a> );
<a href=#399 id=399 data-nosnippet>399</a>
<a href=#400 id=400 data-nosnippet>400</a> <span class="comment">// Null type
<a href=#401 id=401 data-nosnippet>401</a> </span><span class="kw">let </span>builder = NullVectorBuilder::default();
<a href=#402 id=402 data-nosnippet>402</a> <span class="macro">assert_eq!</span>(builder.data_type(), ConcreteDataType::null_datatype());
<a href=#403 id=403 data-nosnippet>403</a>
<a href=#404 id=404 data-nosnippet>404</a> <span class="comment">// Decimal128 type
<a href=#405 id=405 data-nosnippet>405</a> </span><span class="kw">let </span>builder = Decimal128VectorBuilder::with_capacity(<span class="number">1024</span>);
<a href=#406 id=406 data-nosnippet>406</a> <span class="macro">assert_eq!</span>(
<a href=#407 id=407 data-nosnippet>407</a> builder.data_type(),
<a href=#408 id=408 data-nosnippet>408</a> ConcreteDataType::decimal128_datatype(<span class="number">38</span>, <span class="number">10</span>)
<a href=#409 id=409 data-nosnippet>409</a> );
<a href=#410 id=410 data-nosnippet>410</a>
<a href=#411 id=411 data-nosnippet>411</a> <span class="kw">let </span>builder = Decimal128VectorBuilder::with_capacity(<span class="number">1024</span>)
<a href=#412 id=412 data-nosnippet>412</a> .with_precision_and_scale(<span class="number">3</span>, <span class="number">2</span>)
<a href=#413 id=413 data-nosnippet>413</a> .unwrap();
<a href=#414 id=414 data-nosnippet>414</a> <span class="macro">assert_eq!</span>(
<a href=#415 id=415 data-nosnippet>415</a> builder.data_type(),
<a href=#416 id=416 data-nosnippet>416</a> ConcreteDataType::decimal128_datatype(<span class="number">3</span>, <span class="number">2</span>)
<a href=#417 id=417 data-nosnippet>417</a> );
<a href=#418 id=418 data-nosnippet>418</a> }
<a href=#419 id=419 data-nosnippet>419</a>
<a href=#420 id=420 data-nosnippet>420</a> <span class="attr">#[test]
<a href=#421 id=421 data-nosnippet>421</a> #[should_panic(expected = <span class="string">"Must use ListVectorBuilder::with_type_capacity()"</span>)]
<a href=#422 id=422 data-nosnippet>422</a> </span><span class="kw">fn </span>test_mutable_vector_list_data_type() {
<a href=#423 id=423 data-nosnippet>423</a> <span class="kw">let </span>item_type = Arc::new(ConcreteDataType::int32_datatype());
<a href=#424 id=424 data-nosnippet>424</a> <span class="comment">// List type
<a href=#425 id=425 data-nosnippet>425</a> </span><span class="kw">let </span>builder = ListVectorBuilder::with_type_capacity(item_type.clone(), <span class="number">1024</span>);
<a href=#426 id=426 data-nosnippet>426</a> <span class="macro">assert_eq!</span>(
<a href=#427 id=427 data-nosnippet>427</a> builder.data_type(),
<a href=#428 id=428 data-nosnippet>428</a> ConcreteDataType::list_datatype(item_type)
<a href=#429 id=429 data-nosnippet>429</a> );
<a href=#430 id=430 data-nosnippet>430</a>
<a href=#431 id=431 data-nosnippet>431</a> <span class="comment">// Panic with_capacity
<a href=#432 id=432 data-nosnippet>432</a> </span><span class="kw">let _ </span>= ListVectorBuilder::with_capacity(<span class="number">1024</span>);
<a href=#433 id=433 data-nosnippet>433</a> }
<a href=#434 id=434 data-nosnippet>434</a>
<a href=#435 id=435 data-nosnippet>435</a> <span class="attr">#[test]
<a href=#436 id=436 data-nosnippet>436</a> </span><span class="kw">fn </span>test_mutable_vector_to_vector_cloned() {
<a href=#437 id=437 data-nosnippet>437</a> <span class="comment">// create a string vector builder
<a href=#438 id=438 data-nosnippet>438</a> </span><span class="kw">let </span><span class="kw-2">mut </span>builder = ConcreteDataType::string_datatype().create_mutable_vector(<span class="number">1024</span>);
<a href=#439 id=439 data-nosnippet>439</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::String(<span class="string">"hello"</span>));
<a href=#440 id=440 data-nosnippet>440</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::String(<span class="string">"world"</span>));
<a href=#441 id=441 data-nosnippet>441</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::String(<span class="string">"!"</span>));
<a href=#442 id=442 data-nosnippet>442</a>
<a href=#443 id=443 data-nosnippet>443</a> <span class="comment">// use MutableVector trait to_vector_cloned won't reset builder
<a href=#444 id=444 data-nosnippet>444</a> </span><span class="kw">let </span>vector = builder.to_vector_cloned();
<a href=#445 id=445 data-nosnippet>445</a> <span class="macro">assert_eq!</span>(vector.len(), <span class="number">3</span>);
<a href=#446 id=446 data-nosnippet>446</a> <span class="macro">assert_eq!</span>(builder.len(), <span class="number">3</span>);
<a href=#447 id=447 data-nosnippet>447</a> }
<a href=#448 id=448 data-nosnippet>448</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/binary.rs`."><title>binary.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>binary.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::any::Any;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::sync::Arc;
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>arrow::array::{Array, ArrayBuilder, ArrayIter, ArrayRef};
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>snafu::ResultExt;
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::arrow_array::{
<a href=#22 id=22 data-nosnippet>22</a> BinaryArray, BinaryViewArray, LargeBinaryArray, MutableBinaryArray, MutableBinaryViewArray,
<a href=#23 id=23 data-nosnippet>23</a>};
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, InvalidVectorSnafu, <span class="prelude-ty">Result</span>};
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::scalars::{ScalarVector, ScalarVectorBuilder};
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span><span class="kw">crate</span>::types::parse_string_to_vector_type_value;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::value::{Value, ValueRef};
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{<span class="self">self</span>, MutableVector, Validity, Vector, VectorRef};
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="attr">#[derive(Debug, PartialEq)]
<a href=#33 id=33 data-nosnippet>33</a></span><span class="kw">enum </span>BinaryArrayData {
<a href=#34 id=34 data-nosnippet>34</a> Binary(BinaryArray),
<a href=#35 id=35 data-nosnippet>35</a> LargeBinary(LargeBinaryArray),
<a href=#36 id=36 data-nosnippet>36</a> BinaryView(BinaryViewArray),
<a href=#37 id=37 data-nosnippet>37</a>}
<a href=#38 id=38 data-nosnippet>38</a>
<a href=#39 id=39 data-nosnippet>39</a><span class="doccomment">/// Vector of binary strings.
<a href=#40 id=40 data-nosnippet>40</a></span><span class="attr">#[derive(Debug, PartialEq)]
<a href=#41 id=41 data-nosnippet>41</a></span><span class="kw">pub struct </span>BinaryVector {
<a href=#42 id=42 data-nosnippet>42</a> array: BinaryArrayData,
<a href=#43 id=43 data-nosnippet>43</a>}
<a href=#44 id=44 data-nosnippet>44</a>
<a href=#45 id=45 data-nosnippet>45</a><span class="kw">impl </span>BinaryVector {
<a href=#46 id=46 data-nosnippet>46</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>as_arrow(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Array {
<a href=#47 id=47 data-nosnippet>47</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#48 id=48 data-nosnippet>48</a> BinaryArrayData::Binary(array) =&gt; array,
<a href=#49 id=49 data-nosnippet>49</a> BinaryArrayData::LargeBinary(array) =&gt; array,
<a href=#50 id=50 data-nosnippet>50</a> BinaryArrayData::BinaryView(array) =&gt; array,
<a href=#51 id=51 data-nosnippet>51</a> }
<a href=#52 id=52 data-nosnippet>52</a> }
<a href=#53 id=53 data-nosnippet>53</a>
<a href=#54 id=54 data-nosnippet>54</a> <span class="doccomment">/// Creates a new binary vector of JSONB from a binary vector.
<a href=#55 id=55 data-nosnippet>55</a> /// The binary vector must contain valid JSON strings.
<a href=#56 id=56 data-nosnippet>56</a> </span><span class="kw">pub fn </span>convert_binary_to_json(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;BinaryVector&gt; {
<a href=#57 id=57 data-nosnippet>57</a> <span class="kw">let </span><span class="kw-2">mut </span>vector = <span class="macro">vec!</span>[];
<a href=#58 id=58 data-nosnippet>58</a> <span class="kw">for </span>binary <span class="kw">in </span><span class="self">self</span>.iter_data() {
<a href=#59 id=59 data-nosnippet>59</a> <span class="kw">let </span>jsonb = <span class="kw">if let </span><span class="prelude-val">Some</span>(binary) = binary {
<a href=#60 id=60 data-nosnippet>60</a> <span class="kw">match </span>jsonb::from_slice(binary) {
<a href=#61 id=61 data-nosnippet>61</a> <span class="prelude-val">Ok</span>(jsonb) =&gt; <span class="prelude-val">Some</span>(jsonb.to_vec()),
<a href=#62 id=62 data-nosnippet>62</a> <span class="prelude-val">Err</span>(<span class="kw">_</span>) =&gt; {
<a href=#63 id=63 data-nosnippet>63</a> <span class="kw">let </span>s = String::from_utf8_lossy(binary);
<a href=#64 id=64 data-nosnippet>64</a> <span class="kw">return </span>error::InvalidJsonSnafu {
<a href=#65 id=65 data-nosnippet>65</a> value: s.to_string(),
<a href=#66 id=66 data-nosnippet>66</a> }
<a href=#67 id=67 data-nosnippet>67</a> .fail();
<a href=#68 id=68 data-nosnippet>68</a> }
<a href=#69 id=69 data-nosnippet>69</a> }
<a href=#70 id=70 data-nosnippet>70</a> } <span class="kw">else </span>{
<a href=#71 id=71 data-nosnippet>71</a> <span class="prelude-val">None
<a href=#72 id=72 data-nosnippet>72</a> </span>};
<a href=#73 id=73 data-nosnippet>73</a> vector.push(jsonb);
<a href=#74 id=74 data-nosnippet>74</a> }
<a href=#75 id=75 data-nosnippet>75</a> <span class="prelude-val">Ok</span>(BinaryVector::from(vector))
<a href=#76 id=76 data-nosnippet>76</a> }
<a href=#77 id=77 data-nosnippet>77</a>
<a href=#78 id=78 data-nosnippet>78</a> <span class="kw">pub fn </span>convert_binary_to_vector(<span class="kw-2">&amp;</span><span class="self">self</span>, dim: u32) -&gt; <span class="prelude-ty">Result</span>&lt;BinaryVector&gt; {
<a href=#79 id=79 data-nosnippet>79</a> <span class="kw">let </span><span class="kw-2">mut </span>vector = <span class="macro">vec!</span>[];
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">for </span>binary <span class="kw">in </span><span class="self">self</span>.iter_data() {
<a href=#81 id=81 data-nosnippet>81</a> <span class="kw">let </span><span class="prelude-val">Some</span>(binary) = binary <span class="kw">else </span>{
<a href=#82 id=82 data-nosnippet>82</a> vector.push(<span class="prelude-val">None</span>);
<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">continue</span>;
<a href=#84 id=84 data-nosnippet>84</a> };
<a href=#85 id=85 data-nosnippet>85</a>
<a href=#86 id=86 data-nosnippet>86</a> <span class="kw">if let </span><span class="prelude-val">Ok</span>(s) = String::from_utf8(binary.to_vec())
<a href=#87 id=87 data-nosnippet>87</a> &amp;&amp; <span class="kw">let </span><span class="prelude-val">Ok</span>(v) = parse_string_to_vector_type_value(<span class="kw-2">&amp;</span>s, <span class="prelude-val">Some</span>(dim))
<a href=#88 id=88 data-nosnippet>88</a> {
<a href=#89 id=89 data-nosnippet>89</a> vector.push(<span class="prelude-val">Some</span>(v));
<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">continue</span>;
<a href=#91 id=91 data-nosnippet>91</a> }
<a href=#92 id=92 data-nosnippet>92</a>
<a href=#93 id=93 data-nosnippet>93</a> <span class="kw">let </span>expected_bytes_size = dim <span class="kw">as </span>usize * std::mem::size_of::&lt;f32&gt;();
<a href=#94 id=94 data-nosnippet>94</a> <span class="kw">if </span>binary.len() == expected_bytes_size {
<a href=#95 id=95 data-nosnippet>95</a> vector.push(<span class="prelude-val">Some</span>(binary.to_vec()));
<a href=#96 id=96 data-nosnippet>96</a> <span class="kw">continue</span>;
<a href=#97 id=97 data-nosnippet>97</a> } <span class="kw">else </span>{
<a href=#98 id=98 data-nosnippet>98</a> <span class="kw">return </span>InvalidVectorSnafu {
<a href=#99 id=99 data-nosnippet>99</a> msg: <span class="macro">format!</span>(
<a href=#100 id=100 data-nosnippet>100</a> <span class="string">"Unexpected bytes size for vector value, expected {}, got {}"</span>,
<a href=#101 id=101 data-nosnippet>101</a> expected_bytes_size,
<a href=#102 id=102 data-nosnippet>102</a> binary.len()
<a href=#103 id=103 data-nosnippet>103</a> ),
<a href=#104 id=104 data-nosnippet>104</a> }
<a href=#105 id=105 data-nosnippet>105</a> .fail();
<a href=#106 id=106 data-nosnippet>106</a> }
<a href=#107 id=107 data-nosnippet>107</a> }
<a href=#108 id=108 data-nosnippet>108</a> <span class="prelude-val">Ok</span>(BinaryVector::from(vector))
<a href=#109 id=109 data-nosnippet>109</a> }
<a href=#110 id=110 data-nosnippet>110</a>}
<a href=#111 id=111 data-nosnippet>111</a>
<a href=#112 id=112 data-nosnippet>112</a><span class="kw">impl </span>From&lt;BinaryArray&gt; <span class="kw">for </span>BinaryVector {
<a href=#113 id=113 data-nosnippet>113</a> <span class="kw">fn </span>from(array: BinaryArray) -&gt; <span class="self">Self </span>{
<a href=#114 id=114 data-nosnippet>114</a> <span class="self">Self </span>{
<a href=#115 id=115 data-nosnippet>115</a> array: BinaryArrayData::Binary(array),
<a href=#116 id=116 data-nosnippet>116</a> }
<a href=#117 id=117 data-nosnippet>117</a> }
<a href=#118 id=118 data-nosnippet>118</a>}
<a href=#119 id=119 data-nosnippet>119</a>
<a href=#120 id=120 data-nosnippet>120</a><span class="kw">impl </span>From&lt;BinaryViewArray&gt; <span class="kw">for </span>BinaryVector {
<a href=#121 id=121 data-nosnippet>121</a> <span class="kw">fn </span>from(array: BinaryViewArray) -&gt; <span class="self">Self </span>{
<a href=#122 id=122 data-nosnippet>122</a> <span class="self">Self </span>{
<a href=#123 id=123 data-nosnippet>123</a> array: BinaryArrayData::BinaryView(array),
<a href=#124 id=124 data-nosnippet>124</a> }
<a href=#125 id=125 data-nosnippet>125</a> }
<a href=#126 id=126 data-nosnippet>126</a>}
<a href=#127 id=127 data-nosnippet>127</a>
<a href=#128 id=128 data-nosnippet>128</a><span class="kw">impl </span>From&lt;LargeBinaryArray&gt; <span class="kw">for </span>BinaryVector {
<a href=#129 id=129 data-nosnippet>129</a> <span class="kw">fn </span>from(array: LargeBinaryArray) -&gt; <span class="self">Self </span>{
<a href=#130 id=130 data-nosnippet>130</a> <span class="self">Self </span>{
<a href=#131 id=131 data-nosnippet>131</a> array: BinaryArrayData::LargeBinary(array),
<a href=#132 id=132 data-nosnippet>132</a> }
<a href=#133 id=133 data-nosnippet>133</a> }
<a href=#134 id=134 data-nosnippet>134</a>}
<a href=#135 id=135 data-nosnippet>135</a>
<a href=#136 id=136 data-nosnippet>136</a><span class="kw">impl </span>From&lt;Vec&lt;<span class="prelude-ty">Option</span>&lt;Vec&lt;u8&gt;&gt;&gt;&gt; <span class="kw">for </span>BinaryVector {
<a href=#137 id=137 data-nosnippet>137</a> <span class="kw">fn </span>from(data: Vec&lt;<span class="prelude-ty">Option</span>&lt;Vec&lt;u8&gt;&gt;&gt;) -&gt; <span class="self">Self </span>{
<a href=#138 id=138 data-nosnippet>138</a> <span class="self">Self </span>{
<a href=#139 id=139 data-nosnippet>139</a> array: BinaryArrayData::Binary(BinaryArray::from_iter(data)),
<a href=#140 id=140 data-nosnippet>140</a> }
<a href=#141 id=141 data-nosnippet>141</a> }
<a href=#142 id=142 data-nosnippet>142</a>}
<a href=#143 id=143 data-nosnippet>143</a>
<a href=#144 id=144 data-nosnippet>144</a><span class="kw">impl </span>From&lt;Vec&lt;<span class="kw-2">&amp;</span>[u8]&gt;&gt; <span class="kw">for </span>BinaryVector {
<a href=#145 id=145 data-nosnippet>145</a> <span class="kw">fn </span>from(data: Vec&lt;<span class="kw-2">&amp;</span>[u8]&gt;) -&gt; <span class="self">Self </span>{
<a href=#146 id=146 data-nosnippet>146</a> <span class="self">Self </span>{
<a href=#147 id=147 data-nosnippet>147</a> array: BinaryArrayData::Binary(BinaryArray::from_iter_values(data)),
<a href=#148 id=148 data-nosnippet>148</a> }
<a href=#149 id=149 data-nosnippet>149</a> }
<a href=#150 id=150 data-nosnippet>150</a>}
<a href=#151 id=151 data-nosnippet>151</a>
<a href=#152 id=152 data-nosnippet>152</a><span class="kw">impl </span>Vector <span class="kw">for </span>BinaryVector {
<a href=#153 id=153 data-nosnippet>153</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#154 id=154 data-nosnippet>154</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#155 id=155 data-nosnippet>155</a> BinaryArrayData::Binary(<span class="kw">_</span>) =&gt; ConcreteDataType::binary_datatype(),
<a href=#156 id=156 data-nosnippet>156</a> BinaryArrayData::LargeBinary(<span class="kw">_</span>) =&gt; ConcreteDataType::binary_datatype(),
<a href=#157 id=157 data-nosnippet>157</a> BinaryArrayData::BinaryView(<span class="kw">_</span>) =&gt; ConcreteDataType::binary_view_datatype(),
<a href=#158 id=158 data-nosnippet>158</a> }
<a href=#159 id=159 data-nosnippet>159</a> }
<a href=#160 id=160 data-nosnippet>160</a>
<a href=#161 id=161 data-nosnippet>161</a> <span class="kw">fn </span>vector_type_name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#162 id=162 data-nosnippet>162</a> <span class="string">"BinaryVector"</span>.to_string()
<a href=#163 id=163 data-nosnippet>163</a> }
<a href=#164 id=164 data-nosnippet>164</a>
<a href=#165 id=165 data-nosnippet>165</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#166 id=166 data-nosnippet>166</a> <span class="self">self
<a href=#167 id=167 data-nosnippet>167</a> </span>}
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#170 id=170 data-nosnippet>170</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#171 id=171 data-nosnippet>171</a> BinaryArrayData::Binary(array) =&gt; array.len(),
<a href=#172 id=172 data-nosnippet>172</a> BinaryArrayData::LargeBinary(array) =&gt; array.len(),
<a href=#173 id=173 data-nosnippet>173</a> BinaryArrayData::BinaryView(array) =&gt; array.len(),
<a href=#174 id=174 data-nosnippet>174</a> }
<a href=#175 id=175 data-nosnippet>175</a> }
<a href=#176 id=176 data-nosnippet>176</a>
<a href=#177 id=177 data-nosnippet>177</a> <span class="kw">fn </span>to_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrayRef {
<a href=#178 id=178 data-nosnippet>178</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#179 id=179 data-nosnippet>179</a> BinaryArrayData::Binary(array) =&gt; Arc::new(array.clone()),
<a href=#180 id=180 data-nosnippet>180</a> BinaryArrayData::LargeBinary(array) =&gt; Arc::new(array.clone()),
<a href=#181 id=181 data-nosnippet>181</a> BinaryArrayData::BinaryView(array) =&gt; Arc::new(array.clone()),
<a href=#182 id=182 data-nosnippet>182</a> }
<a href=#183 id=183 data-nosnippet>183</a> }
<a href=#184 id=184 data-nosnippet>184</a>
<a href=#185 id=185 data-nosnippet>185</a> <span class="kw">fn </span>to_boxed_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Box&lt;<span class="kw">dyn </span>Array&gt; {
<a href=#186 id=186 data-nosnippet>186</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#187 id=187 data-nosnippet>187</a> BinaryArrayData::Binary(array) =&gt; Box::new(array.clone()),
<a href=#188 id=188 data-nosnippet>188</a> BinaryArrayData::LargeBinary(array) =&gt; Box::new(array.clone()),
<a href=#189 id=189 data-nosnippet>189</a> BinaryArrayData::BinaryView(array) =&gt; Box::new(array.clone()),
<a href=#190 id=190 data-nosnippet>190</a> }
<a href=#191 id=191 data-nosnippet>191</a> }
<a href=#192 id=192 data-nosnippet>192</a>
<a href=#193 id=193 data-nosnippet>193</a> <span class="kw">fn </span>validity(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Validity {
<a href=#194 id=194 data-nosnippet>194</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#195 id=195 data-nosnippet>195</a> BinaryArrayData::Binary(array) =&gt; <span class="macro">vectors::impl_validity_for_vector!</span>(array),
<a href=#196 id=196 data-nosnippet>196</a> BinaryArrayData::LargeBinary(array) =&gt; <span class="macro">vectors::impl_validity_for_vector!</span>(array),
<a href=#197 id=197 data-nosnippet>197</a> BinaryArrayData::BinaryView(array) =&gt; <span class="macro">vectors::impl_validity_for_vector!</span>(array),
<a href=#198 id=198 data-nosnippet>198</a> }
<a href=#199 id=199 data-nosnippet>199</a> }
<a href=#200 id=200 data-nosnippet>200</a>
<a href=#201 id=201 data-nosnippet>201</a> <span class="kw">fn </span>memory_size(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#202 id=202 data-nosnippet>202</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#203 id=203 data-nosnippet>203</a> BinaryArrayData::Binary(array) =&gt; array.get_buffer_memory_size(),
<a href=#204 id=204 data-nosnippet>204</a> BinaryArrayData::LargeBinary(array) =&gt; array.get_buffer_memory_size(),
<a href=#205 id=205 data-nosnippet>205</a> BinaryArrayData::BinaryView(array) =&gt; array.get_buffer_memory_size(),
<a href=#206 id=206 data-nosnippet>206</a> }
<a href=#207 id=207 data-nosnippet>207</a> }
<a href=#208 id=208 data-nosnippet>208</a>
<a href=#209 id=209 data-nosnippet>209</a> <span class="kw">fn </span>null_count(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#210 id=210 data-nosnippet>210</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#211 id=211 data-nosnippet>211</a> BinaryArrayData::Binary(array) =&gt; array.null_count(),
<a href=#212 id=212 data-nosnippet>212</a> BinaryArrayData::LargeBinary(array) =&gt; array.null_count(),
<a href=#213 id=213 data-nosnippet>213</a> BinaryArrayData::BinaryView(array) =&gt; array.null_count(),
<a href=#214 id=214 data-nosnippet>214</a> }
<a href=#215 id=215 data-nosnippet>215</a> }
<a href=#216 id=216 data-nosnippet>216</a>
<a href=#217 id=217 data-nosnippet>217</a> <span class="kw">fn </span>is_null(<span class="kw-2">&amp;</span><span class="self">self</span>, row: usize) -&gt; bool {
<a href=#218 id=218 data-nosnippet>218</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#219 id=219 data-nosnippet>219</a> BinaryArrayData::Binary(array) =&gt; array.is_null(row),
<a href=#220 id=220 data-nosnippet>220</a> BinaryArrayData::LargeBinary(array) =&gt; array.is_null(row),
<a href=#221 id=221 data-nosnippet>221</a> BinaryArrayData::BinaryView(array) =&gt; array.is_null(row),
<a href=#222 id=222 data-nosnippet>222</a> }
<a href=#223 id=223 data-nosnippet>223</a> }
<a href=#224 id=224 data-nosnippet>224</a>
<a href=#225 id=225 data-nosnippet>225</a> <span class="kw">fn </span>slice(<span class="kw-2">&amp;</span><span class="self">self</span>, offset: usize, length: usize) -&gt; VectorRef {
<a href=#226 id=226 data-nosnippet>226</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#227 id=227 data-nosnippet>227</a> BinaryArrayData::Binary(array) =&gt; {
<a href=#228 id=228 data-nosnippet>228</a> <span class="kw">let </span>array = array.slice(offset, length);
<a href=#229 id=229 data-nosnippet>229</a> Arc::new(<span class="self">Self </span>{
<a href=#230 id=230 data-nosnippet>230</a> array: BinaryArrayData::Binary(array),
<a href=#231 id=231 data-nosnippet>231</a> })
<a href=#232 id=232 data-nosnippet>232</a> }
<a href=#233 id=233 data-nosnippet>233</a> BinaryArrayData::LargeBinary(array) =&gt; {
<a href=#234 id=234 data-nosnippet>234</a> <span class="kw">let </span>array = array.slice(offset, length);
<a href=#235 id=235 data-nosnippet>235</a> Arc::new(<span class="self">Self </span>{
<a href=#236 id=236 data-nosnippet>236</a> array: BinaryArrayData::LargeBinary(array),
<a href=#237 id=237 data-nosnippet>237</a> })
<a href=#238 id=238 data-nosnippet>238</a> }
<a href=#239 id=239 data-nosnippet>239</a> BinaryArrayData::BinaryView(array) =&gt; {
<a href=#240 id=240 data-nosnippet>240</a> <span class="kw">let </span>array = array.slice(offset, length);
<a href=#241 id=241 data-nosnippet>241</a> Arc::new(<span class="self">Self </span>{
<a href=#242 id=242 data-nosnippet>242</a> array: BinaryArrayData::BinaryView(array),
<a href=#243 id=243 data-nosnippet>243</a> })
<a href=#244 id=244 data-nosnippet>244</a> }
<a href=#245 id=245 data-nosnippet>245</a> }
<a href=#246 id=246 data-nosnippet>246</a> }
<a href=#247 id=247 data-nosnippet>247</a>
<a href=#248 id=248 data-nosnippet>248</a> <span class="kw">fn </span>get(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; Value {
<a href=#249 id=249 data-nosnippet>249</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#250 id=250 data-nosnippet>250</a> BinaryArrayData::Binary(array) =&gt; <span class="macro">vectors::impl_get_for_vector!</span>(array, index),
<a href=#251 id=251 data-nosnippet>251</a> BinaryArrayData::LargeBinary(array) =&gt; <span class="macro">vectors::impl_get_for_vector!</span>(array, index),
<a href=#252 id=252 data-nosnippet>252</a> BinaryArrayData::BinaryView(array) =&gt; <span class="macro">vectors::impl_get_for_vector!</span>(array, index),
<a href=#253 id=253 data-nosnippet>253</a> }
<a href=#254 id=254 data-nosnippet>254</a> }
<a href=#255 id=255 data-nosnippet>255</a>
<a href=#256 id=256 data-nosnippet>256</a> <span class="kw">fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; ValueRef&lt;<span class="lifetime">'_</span>&gt; {
<a href=#257 id=257 data-nosnippet>257</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#258 id=258 data-nosnippet>258</a> BinaryArrayData::Binary(array) =&gt; <span class="macro">vectors::impl_get_ref_for_vector!</span>(array, index),
<a href=#259 id=259 data-nosnippet>259</a> BinaryArrayData::LargeBinary(array) =&gt; <span class="macro">vectors::impl_get_ref_for_vector!</span>(array, index),
<a href=#260 id=260 data-nosnippet>260</a> BinaryArrayData::BinaryView(array) =&gt; <span class="macro">vectors::impl_get_ref_for_vector!</span>(array, index),
<a href=#261 id=261 data-nosnippet>261</a> }
<a href=#262 id=262 data-nosnippet>262</a> }
<a href=#263 id=263 data-nosnippet>263</a>}
<a href=#264 id=264 data-nosnippet>264</a>
<a href=#265 id=265 data-nosnippet>265</a><span class="kw">impl </span>From&lt;Vec&lt;Vec&lt;u8&gt;&gt;&gt; <span class="kw">for </span>BinaryVector {
<a href=#266 id=266 data-nosnippet>266</a> <span class="kw">fn </span>from(data: Vec&lt;Vec&lt;u8&gt;&gt;) -&gt; <span class="self">Self </span>{
<a href=#267 id=267 data-nosnippet>267</a> <span class="self">Self </span>{
<a href=#268 id=268 data-nosnippet>268</a> array: BinaryArrayData::Binary(BinaryArray::from_iter_values(data)),
<a href=#269 id=269 data-nosnippet>269</a> }
<a href=#270 id=270 data-nosnippet>270</a> }
<a href=#271 id=271 data-nosnippet>271</a>}
<a href=#272 id=272 data-nosnippet>272</a>
<a href=#273 id=273 data-nosnippet>273</a><span class="kw">impl </span>ScalarVector <span class="kw">for </span>BinaryVector {
<a href=#274 id=274 data-nosnippet>274</a> <span class="kw">type </span>OwnedItem = Vec&lt;u8&gt;;
<a href=#275 id=275 data-nosnippet>275</a> <span class="kw">type </span>RefItem&lt;<span class="lifetime">'a</span>&gt; = <span class="kw-2">&amp;</span><span class="lifetime">'a </span>[u8];
<a href=#276 id=276 data-nosnippet>276</a> <span class="kw">type </span>Iter&lt;<span class="lifetime">'a</span>&gt; = BinaryIter&lt;<span class="lifetime">'a</span>&gt;;
<a href=#277 id=277 data-nosnippet>277</a> <span class="kw">type </span>Builder = BinaryVectorBuilder;
<a href=#278 id=278 data-nosnippet>278</a>
<a href=#279 id=279 data-nosnippet>279</a> <span class="kw">fn </span>get_data(<span class="kw-2">&amp;</span><span class="self">self</span>, idx: usize) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt; {
<a href=#280 id=280 data-nosnippet>280</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#281 id=281 data-nosnippet>281</a> BinaryArrayData::Binary(array) =&gt; array.is_valid(idx).then(|| array.value(idx)),
<a href=#282 id=282 data-nosnippet>282</a> BinaryArrayData::LargeBinary(array) =&gt; array.is_valid(idx).then(|| array.value(idx)),
<a href=#283 id=283 data-nosnippet>283</a> BinaryArrayData::BinaryView(array) =&gt; array.is_valid(idx).then(|| array.value(idx)),
<a href=#284 id=284 data-nosnippet>284</a> }
<a href=#285 id=285 data-nosnippet>285</a> }
<a href=#286 id=286 data-nosnippet>286</a>
<a href=#287 id=287 data-nosnippet>287</a> <span class="kw">fn </span>iter_data(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::Iter&lt;<span class="lifetime">'_</span>&gt; {
<a href=#288 id=288 data-nosnippet>288</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#289 id=289 data-nosnippet>289</a> BinaryArrayData::Binary(array) =&gt; BinaryIter::Binary(array.iter()),
<a href=#290 id=290 data-nosnippet>290</a> BinaryArrayData::LargeBinary(array) =&gt; BinaryIter::LargeBinary(array.iter()),
<a href=#291 id=291 data-nosnippet>291</a> BinaryArrayData::BinaryView(array) =&gt; BinaryIter::BinaryView(array.iter()),
<a href=#292 id=292 data-nosnippet>292</a> }
<a href=#293 id=293 data-nosnippet>293</a> }
<a href=#294 id=294 data-nosnippet>294</a>}
<a href=#295 id=295 data-nosnippet>295</a>
<a href=#296 id=296 data-nosnippet>296</a><span class="kw">pub enum </span>BinaryIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#297 id=297 data-nosnippet>297</a> Binary(ArrayIter&lt;<span class="kw-2">&amp;</span><span class="lifetime">'a </span>BinaryArray&gt;),
<a href=#298 id=298 data-nosnippet>298</a> LargeBinary(ArrayIter&lt;<span class="kw-2">&amp;</span><span class="lifetime">'a </span>LargeBinaryArray&gt;),
<a href=#299 id=299 data-nosnippet>299</a> BinaryView(ArrayIter&lt;<span class="kw-2">&amp;</span><span class="lifetime">'a </span>BinaryViewArray&gt;),
<a href=#300 id=300 data-nosnippet>300</a>}
<a href=#301 id=301 data-nosnippet>301</a>
<a href=#302 id=302 data-nosnippet>302</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; Iterator <span class="kw">for </span>BinaryIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#303 id=303 data-nosnippet>303</a> <span class="kw">type </span>Item = <span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span><span class="lifetime">'a </span>[u8]&gt;;
<a href=#304 id=304 data-nosnippet>304</a>
<a href=#305 id=305 data-nosnippet>305</a> <span class="kw">fn </span>next(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::Item&gt; {
<a href=#306 id=306 data-nosnippet>306</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#307 id=307 data-nosnippet>307</a> BinaryIter::Binary(iter) =&gt; iter.next(),
<a href=#308 id=308 data-nosnippet>308</a> BinaryIter::LargeBinary(iter) =&gt; iter.next(),
<a href=#309 id=309 data-nosnippet>309</a> BinaryIter::BinaryView(iter) =&gt; iter.next(),
<a href=#310 id=310 data-nosnippet>310</a> }
<a href=#311 id=311 data-nosnippet>311</a> }
<a href=#312 id=312 data-nosnippet>312</a>}
<a href=#313 id=313 data-nosnippet>313</a>
<a href=#314 id=314 data-nosnippet>314</a><span class="kw">enum </span>MutableBinaryArrayData {
<a href=#315 id=315 data-nosnippet>315</a> Binary(MutableBinaryArray),
<a href=#316 id=316 data-nosnippet>316</a> BinaryView(MutableBinaryViewArray),
<a href=#317 id=317 data-nosnippet>317</a>}
<a href=#318 id=318 data-nosnippet>318</a>
<a href=#319 id=319 data-nosnippet>319</a><span class="kw">pub struct </span>BinaryVectorBuilder {
<a href=#320 id=320 data-nosnippet>320</a> mutable_array: MutableBinaryArrayData,
<a href=#321 id=321 data-nosnippet>321</a>}
<a href=#322 id=322 data-nosnippet>322</a>
<a href=#323 id=323 data-nosnippet>323</a><span class="kw">impl </span>BinaryVectorBuilder {
<a href=#324 id=324 data-nosnippet>324</a> <span class="kw">pub fn </span>with_view_capacity(capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#325 id=325 data-nosnippet>325</a> <span class="self">Self </span>{
<a href=#326 id=326 data-nosnippet>326</a> mutable_array: MutableBinaryArrayData::BinaryView(
<a href=#327 id=327 data-nosnippet>327</a> MutableBinaryViewArray::with_capacity(capacity),
<a href=#328 id=328 data-nosnippet>328</a> ),
<a href=#329 id=329 data-nosnippet>329</a> }
<a href=#330 id=330 data-nosnippet>330</a> }
<a href=#331 id=331 data-nosnippet>331</a>}
<a href=#332 id=332 data-nosnippet>332</a>
<a href=#333 id=333 data-nosnippet>333</a><span class="kw">impl </span>MutableVector <span class="kw">for </span>BinaryVectorBuilder {
<a href=#334 id=334 data-nosnippet>334</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#335 id=335 data-nosnippet>335</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.mutable_array {
<a href=#336 id=336 data-nosnippet>336</a> MutableBinaryArrayData::Binary(<span class="kw">_</span>) =&gt; ConcreteDataType::binary_datatype(),
<a href=#337 id=337 data-nosnippet>337</a> MutableBinaryArrayData::BinaryView(<span class="kw">_</span>) =&gt; ConcreteDataType::binary_view_datatype(),
<a href=#338 id=338 data-nosnippet>338</a> }
<a href=#339 id=339 data-nosnippet>339</a> }
<a href=#340 id=340 data-nosnippet>340</a>
<a href=#341 id=341 data-nosnippet>341</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#342 id=342 data-nosnippet>342</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.mutable_array {
<a href=#343 id=343 data-nosnippet>343</a> MutableBinaryArrayData::Binary(array) =&gt; array.len(),
<a href=#344 id=344 data-nosnippet>344</a> MutableBinaryArrayData::BinaryView(array) =&gt; array.len(),
<a href=#345 id=345 data-nosnippet>345</a> }
<a href=#346 id=346 data-nosnippet>346</a> }
<a href=#347 id=347 data-nosnippet>347</a>
<a href=#348 id=348 data-nosnippet>348</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#349 id=349 data-nosnippet>349</a> <span class="self">self
<a href=#350 id=350 data-nosnippet>350</a> </span>}
<a href=#351 id=351 data-nosnippet>351</a>
<a href=#352 id=352 data-nosnippet>352</a> <span class="kw">fn </span>as_mut_any(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span><span class="kw">dyn </span>Any {
<a href=#353 id=353 data-nosnippet>353</a> <span class="self">self
<a href=#354 id=354 data-nosnippet>354</a> </span>}
<a href=#355 id=355 data-nosnippet>355</a>
<a href=#356 id=356 data-nosnippet>356</a> <span class="kw">fn </span>to_vector(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; VectorRef {
<a href=#357 id=357 data-nosnippet>357</a> Arc::new(<span class="self">self</span>.finish())
<a href=#358 id=358 data-nosnippet>358</a> }
<a href=#359 id=359 data-nosnippet>359</a>
<a href=#360 id=360 data-nosnippet>360</a> <span class="kw">fn </span>to_vector_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; VectorRef {
<a href=#361 id=361 data-nosnippet>361</a> Arc::new(<span class="self">self</span>.finish_cloned())
<a href=#362 id=362 data-nosnippet>362</a> }
<a href=#363 id=363 data-nosnippet>363</a>
<a href=#364 id=364 data-nosnippet>364</a> <span class="kw">fn </span>try_push_value_ref(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#365 id=365 data-nosnippet>365</a> <span class="kw">let </span>value = value.try_into_binary()<span class="question-mark">?</span>;
<a href=#366 id=366 data-nosnippet>366</a> <span class="kw">match </span><span class="kw-2">&amp;mut </span><span class="self">self</span>.mutable_array {
<a href=#367 id=367 data-nosnippet>367</a> MutableBinaryArrayData::Binary(array) =&gt; array.append_option(value),
<a href=#368 id=368 data-nosnippet>368</a> MutableBinaryArrayData::BinaryView(array) =&gt; array.append_option(value),
<a href=#369 id=369 data-nosnippet>369</a> };
<a href=#370 id=370 data-nosnippet>370</a> <span class="prelude-val">Ok</span>(())
<a href=#371 id=371 data-nosnippet>371</a> }
<a href=#372 id=372 data-nosnippet>372</a>
<a href=#373 id=373 data-nosnippet>373</a> <span class="kw">fn </span>extend_slice_of(<span class="kw-2">&amp;mut </span><span class="self">self</span>, vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector, offset: usize, length: usize) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#374 id=374 data-nosnippet>374</a> <span class="macro">vectors::impl_extend_for_builder!</span>(<span class="self">self</span>, vector, BinaryVector, offset, length)
<a href=#375 id=375 data-nosnippet>375</a> }
<a href=#376 id=376 data-nosnippet>376</a>
<a href=#377 id=377 data-nosnippet>377</a> <span class="kw">fn </span>push_null(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#378 id=378 data-nosnippet>378</a> <span class="kw">match </span><span class="kw-2">&amp;mut </span><span class="self">self</span>.mutable_array {
<a href=#379 id=379 data-nosnippet>379</a> MutableBinaryArrayData::Binary(array) =&gt; array.append_null(),
<a href=#380 id=380 data-nosnippet>380</a> MutableBinaryArrayData::BinaryView(array) =&gt; array.append_null(),
<a href=#381 id=381 data-nosnippet>381</a> }
<a href=#382 id=382 data-nosnippet>382</a> }
<a href=#383 id=383 data-nosnippet>383</a>}
<a href=#384 id=384 data-nosnippet>384</a>
<a href=#385 id=385 data-nosnippet>385</a><span class="kw">impl </span>ScalarVectorBuilder <span class="kw">for </span>BinaryVectorBuilder {
<a href=#386 id=386 data-nosnippet>386</a> <span class="kw">type </span>VectorType = BinaryVector;
<a href=#387 id=387 data-nosnippet>387</a>
<a href=#388 id=388 data-nosnippet>388</a> <span class="kw">fn </span>with_capacity(capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#389 id=389 data-nosnippet>389</a> <span class="self">Self </span>{
<a href=#390 id=390 data-nosnippet>390</a> mutable_array: MutableBinaryArrayData::Binary(MutableBinaryArray::with_capacity(
<a href=#391 id=391 data-nosnippet>391</a> capacity, <span class="number">0</span>,
<a href=#392 id=392 data-nosnippet>392</a> )),
<a href=#393 id=393 data-nosnippet>393</a> }
<a href=#394 id=394 data-nosnippet>394</a> }
<a href=#395 id=395 data-nosnippet>395</a>
<a href=#396 id=396 data-nosnippet>396</a> <span class="kw">fn </span>push(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="prelude-ty">Option</span>&lt;&lt;<span class="self">Self</span>::VectorType <span class="kw">as </span>ScalarVector&gt;::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt;) {
<a href=#397 id=397 data-nosnippet>397</a> <span class="kw">match </span><span class="kw-2">&amp;mut </span><span class="self">self</span>.mutable_array {
<a href=#398 id=398 data-nosnippet>398</a> MutableBinaryArrayData::Binary(array) =&gt; array.append_option(value),
<a href=#399 id=399 data-nosnippet>399</a> MutableBinaryArrayData::BinaryView(array) =&gt; array.append_option(value),
<a href=#400 id=400 data-nosnippet>400</a> };
<a href=#401 id=401 data-nosnippet>401</a> }
<a href=#402 id=402 data-nosnippet>402</a>
<a href=#403 id=403 data-nosnippet>403</a> <span class="kw">fn </span>finish(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#404 id=404 data-nosnippet>404</a> <span class="kw">match </span><span class="kw-2">&amp;mut </span><span class="self">self</span>.mutable_array {
<a href=#405 id=405 data-nosnippet>405</a> MutableBinaryArrayData::Binary(array) =&gt; BinaryVector {
<a href=#406 id=406 data-nosnippet>406</a> array: BinaryArrayData::Binary(array.finish()),
<a href=#407 id=407 data-nosnippet>407</a> },
<a href=#408 id=408 data-nosnippet>408</a> MutableBinaryArrayData::BinaryView(array) =&gt; BinaryVector {
<a href=#409 id=409 data-nosnippet>409</a> array: BinaryArrayData::BinaryView(array.finish()),
<a href=#410 id=410 data-nosnippet>410</a> },
<a href=#411 id=411 data-nosnippet>411</a> }
<a href=#412 id=412 data-nosnippet>412</a> }
<a href=#413 id=413 data-nosnippet>413</a>
<a href=#414 id=414 data-nosnippet>414</a> <span class="kw">fn </span>finish_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#415 id=415 data-nosnippet>415</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.mutable_array {
<a href=#416 id=416 data-nosnippet>416</a> MutableBinaryArrayData::Binary(array) =&gt; BinaryVector {
<a href=#417 id=417 data-nosnippet>417</a> array: BinaryArrayData::Binary(array.finish_cloned()),
<a href=#418 id=418 data-nosnippet>418</a> },
<a href=#419 id=419 data-nosnippet>419</a> MutableBinaryArrayData::BinaryView(array) =&gt; BinaryVector {
<a href=#420 id=420 data-nosnippet>420</a> array: BinaryArrayData::BinaryView(array.finish_cloned()),
<a href=#421 id=421 data-nosnippet>421</a> },
<a href=#422 id=422 data-nosnippet>422</a> }
<a href=#423 id=423 data-nosnippet>423</a> }
<a href=#424 id=424 data-nosnippet>424</a>}
<a href=#425 id=425 data-nosnippet>425</a>
<a href=#426 id=426 data-nosnippet>426</a><span class="kw">impl </span>Serializable <span class="kw">for </span>BinaryVector {
<a href=#427 id=427 data-nosnippet>427</a> <span class="kw">fn </span>serialize_to_json(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;serde_json::Value&gt;&gt; {
<a href=#428 id=428 data-nosnippet>428</a> <span class="self">self</span>.iter_data()
<a href=#429 id=429 data-nosnippet>429</a> .map(|v| <span class="kw">match </span>v {
<a href=#430 id=430 data-nosnippet>430</a> <span class="prelude-val">None </span>=&gt; <span class="prelude-val">Ok</span>(serde_json::Value::Null), <span class="comment">// if binary vector not present, map to NULL
<a href=#431 id=431 data-nosnippet>431</a> </span><span class="prelude-val">Some</span>(vec) =&gt; serde_json::to_value(vec),
<a href=#432 id=432 data-nosnippet>432</a> })
<a href=#433 id=433 data-nosnippet>433</a> .collect::&lt;serde_json::Result&lt;<span class="kw">_</span>&gt;&gt;()
<a href=#434 id=434 data-nosnippet>434</a> .context(error::SerializeSnafu)
<a href=#435 id=435 data-nosnippet>435</a> }
<a href=#436 id=436 data-nosnippet>436</a>}
<a href=#437 id=437 data-nosnippet>437</a>
<a href=#438 id=438 data-nosnippet>438</a><span class="kw">impl </span>BinaryVector {
<a href=#439 id=439 data-nosnippet>439</a> <span class="kw">pub fn </span>try_from_arrow_array(
<a href=#440 id=440 data-nosnippet>440</a> array: <span class="kw">impl </span>AsRef&lt;<span class="kw">dyn </span>Array&gt;,
<a href=#441 id=441 data-nosnippet>441</a> ) -&gt; <span class="kw">crate</span>::error::Result&lt;BinaryVector&gt; {
<a href=#442 id=442 data-nosnippet>442</a> <span class="kw">let </span>array = array.as_ref();
<a href=#443 id=443 data-nosnippet>443</a>
<a href=#444 id=444 data-nosnippet>444</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(binary_array) = array.as_any().downcast_ref::&lt;BinaryArray&gt;() {
<a href=#445 id=445 data-nosnippet>445</a> <span class="prelude-val">Ok</span>(BinaryVector::from(binary_array.clone()))
<a href=#446 id=446 data-nosnippet>446</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(large_binary_array) = array.as_any().downcast_ref::&lt;LargeBinaryArray&gt;() {
<a href=#447 id=447 data-nosnippet>447</a> <span class="prelude-val">Ok</span>(BinaryVector::from(large_binary_array.clone()))
<a href=#448 id=448 data-nosnippet>448</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(binary_view_array) = array.as_any().downcast_ref::&lt;BinaryViewArray&gt;() {
<a href=#449 id=449 data-nosnippet>449</a> <span class="prelude-val">Ok</span>(BinaryVector::from(binary_view_array.clone()))
<a href=#450 id=450 data-nosnippet>450</a> } <span class="kw">else </span>{
<a href=#451 id=451 data-nosnippet>451</a> <span class="prelude-val">Err</span>(<span class="kw">crate</span>::error::UnsupportedArrowTypeSnafu {
<a href=#452 id=452 data-nosnippet>452</a> arrow_type: array.data_type().clone(),
<a href=#453 id=453 data-nosnippet>453</a> }
<a href=#454 id=454 data-nosnippet>454</a> .build())
<a href=#455 id=455 data-nosnippet>455</a> }
<a href=#456 id=456 data-nosnippet>456</a> }
<a href=#457 id=457 data-nosnippet>457</a>}
<a href=#458 id=458 data-nosnippet>458</a>
<a href=#459 id=459 data-nosnippet>459</a><span class="attr">#[cfg(test)]
<a href=#460 id=460 data-nosnippet>460</a></span><span class="kw">mod </span>tests {
<a href=#461 id=461 data-nosnippet>461</a> <span class="kw">use </span>std::assert_matches;
<a href=#462 id=462 data-nosnippet>462</a>
<a href=#463 id=463 data-nosnippet>463</a> <span class="kw">use </span>arrow::datatypes::DataType <span class="kw">as </span>ArrowDataType;
<a href=#464 id=464 data-nosnippet>464</a> <span class="kw">use </span>common_base::bytes::Bytes;
<a href=#465 id=465 data-nosnippet>465</a> <span class="kw">use </span>serde_json;
<a href=#466 id=466 data-nosnippet>466</a>
<a href=#467 id=467 data-nosnippet>467</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#468 id=468 data-nosnippet>468</a> <span class="kw">use </span><span class="kw">crate</span>::arrow_array::{BinaryArray, LargeBinaryArray};
<a href=#469 id=469 data-nosnippet>469</a> <span class="kw">use </span><span class="kw">crate</span>::data_type::DataType;
<a href=#470 id=470 data-nosnippet>470</a> <span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#471 id=471 data-nosnippet>471</a> <span class="kw">use </span><span class="kw">crate</span>::types::BinaryType;
<a href=#472 id=472 data-nosnippet>472</a>
<a href=#473 id=473 data-nosnippet>473</a> <span class="attr">#[test]
<a href=#474 id=474 data-nosnippet>474</a> </span><span class="kw">fn </span>test_binary_vector_misc() {
<a href=#475 id=475 data-nosnippet>475</a> <span class="kw">let </span>v = BinaryVector::from(BinaryArray::from_iter_values([
<a href=#476 id=476 data-nosnippet>476</a> <span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>],
<a href=#477 id=477 data-nosnippet>477</a> <span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>],
<a href=#478 id=478 data-nosnippet>478</a> ]));
<a href=#479 id=479 data-nosnippet>479</a>
<a href=#480 id=480 data-nosnippet>480</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, v.len());
<a href=#481 id=481 data-nosnippet>481</a> <span class="macro">assert_eq!</span>(<span class="string">"BinaryVector"</span>, v.vector_type_name());
<a href=#482 id=482 data-nosnippet>482</a> <span class="macro">assert!</span>(v.validity().is_all_valid());
<a href=#483 id=483 data-nosnippet>483</a> <span class="macro">assert!</span>(!v.only_null());
<a href=#484 id=484 data-nosnippet>484</a> <span class="macro">assert_eq!</span>(<span class="number">128</span>, v.memory_size());
<a href=#485 id=485 data-nosnippet>485</a>
<a href=#486 id=486 data-nosnippet>486</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..<span class="number">2 </span>{
<a href=#487 id=487 data-nosnippet>487</a> <span class="macro">assert!</span>(!v.is_null(i));
<a href=#488 id=488 data-nosnippet>488</a> <span class="macro">assert_eq!</span>(Value::Binary(Bytes::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>])), v.get(i));
<a href=#489 id=489 data-nosnippet>489</a> <span class="macro">assert_eq!</span>(ValueRef::Binary(<span class="kw-2">&amp;</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]), v.get_ref(i));
<a href=#490 id=490 data-nosnippet>490</a> }
<a href=#491 id=491 data-nosnippet>491</a>
<a href=#492 id=492 data-nosnippet>492</a> <span class="kw">let </span>arrow_arr = v.to_arrow_array();
<a href=#493 id=493 data-nosnippet>493</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, arrow_arr.len());
<a href=#494 id=494 data-nosnippet>494</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>ArrowDataType::Binary, arrow_arr.data_type());
<a href=#495 id=495 data-nosnippet>495</a> }
<a href=#496 id=496 data-nosnippet>496</a>
<a href=#497 id=497 data-nosnippet>497</a> <span class="attr">#[test]
<a href=#498 id=498 data-nosnippet>498</a> </span><span class="kw">fn </span>test_binary_view_vector_build_get() {
<a href=#499 id=499 data-nosnippet>499</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = BinaryVectorBuilder::with_view_capacity(<span class="number">4</span>);
<a href=#500 id=500 data-nosnippet>500</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"hello"</span>));
<a href=#501 id=501 data-nosnippet>501</a> builder.push(<span class="prelude-val">None</span>);
<a href=#502 id=502 data-nosnippet>502</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"world"</span>));
<a href=#503 id=503 data-nosnippet>503</a> <span class="kw">let </span>vector = builder.finish();
<a href=#504 id=504 data-nosnippet>504</a>
<a href=#505 id=505 data-nosnippet>505</a> <span class="macro">assert_eq!</span>(ConcreteDataType::binary_view_datatype(), vector.data_type());
<a href=#506 id=506 data-nosnippet>506</a> <span class="macro">assert_eq!</span>(<span class="string">b"hello"</span>, vector.get_data(<span class="number">0</span>).unwrap());
<a href=#507 id=507 data-nosnippet>507</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, vector.get_data(<span class="number">1</span>));
<a href=#508 id=508 data-nosnippet>508</a> <span class="macro">assert_eq!</span>(<span class="string">b"world"</span>, vector.get_data(<span class="number">2</span>).unwrap());
<a href=#509 id=509 data-nosnippet>509</a>
<a href=#510 id=510 data-nosnippet>510</a> <span class="macro">assert_eq!</span>(Value::Binary(<span class="string">b"hello"</span>.as_slice().into()), vector.get(<span class="number">0</span>));
<a href=#511 id=511 data-nosnippet>511</a> <span class="macro">assert_eq!</span>(Value::Null, vector.get(<span class="number">1</span>));
<a href=#512 id=512 data-nosnippet>512</a> <span class="macro">assert_eq!</span>(Value::Binary(<span class="string">b"world"</span>.as_slice().into()), vector.get(<span class="number">2</span>));
<a href=#513 id=513 data-nosnippet>513</a>
<a href=#514 id=514 data-nosnippet>514</a> <span class="kw">let </span><span class="kw-2">mut </span>iter = vector.iter_data();
<a href=#515 id=515 data-nosnippet>515</a> <span class="macro">assert_eq!</span>(<span class="string">b"hello"</span>, iter.next().unwrap().unwrap());
<a href=#516 id=516 data-nosnippet>516</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, iter.next().unwrap());
<a href=#517 id=517 data-nosnippet>517</a> <span class="macro">assert_eq!</span>(<span class="string">b"world"</span>, iter.next().unwrap().unwrap());
<a href=#518 id=518 data-nosnippet>518</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, iter.next());
<a href=#519 id=519 data-nosnippet>519</a>
<a href=#520 id=520 data-nosnippet>520</a> <span class="kw">let </span>arrow_arr = vector.to_arrow_array();
<a href=#521 id=521 data-nosnippet>521</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>ArrowDataType::BinaryView, arrow_arr.data_type());
<a href=#522 id=522 data-nosnippet>522</a> }
<a href=#523 id=523 data-nosnippet>523</a>
<a href=#524 id=524 data-nosnippet>524</a> <span class="attr">#[test]
<a href=#525 id=525 data-nosnippet>525</a> </span><span class="kw">fn </span>test_serialize_binary_vector_to_json() {
<a href=#526 id=526 data-nosnippet>526</a> <span class="kw">let </span>vector = BinaryVector::from(BinaryArray::from_iter_values([
<a href=#527 id=527 data-nosnippet>527</a> <span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>],
<a href=#528 id=528 data-nosnippet>528</a> <span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>],
<a href=#529 id=529 data-nosnippet>529</a> ]));
<a href=#530 id=530 data-nosnippet>530</a>
<a href=#531 id=531 data-nosnippet>531</a> <span class="kw">let </span>json_value = vector.serialize_to_json().unwrap();
<a href=#532 id=532 data-nosnippet>532</a> <span class="macro">assert_eq!</span>(
<a href=#533 id=533 data-nosnippet>533</a> <span class="string">"[[1,2,3],[1,2,3]]"</span>,
<a href=#534 id=534 data-nosnippet>534</a> serde_json::to_string(<span class="kw-2">&amp;</span>json_value).unwrap()
<a href=#535 id=535 data-nosnippet>535</a> );
<a href=#536 id=536 data-nosnippet>536</a> }
<a href=#537 id=537 data-nosnippet>537</a>
<a href=#538 id=538 data-nosnippet>538</a> <span class="attr">#[test]
<a href=#539 id=539 data-nosnippet>539</a> </span><span class="kw">fn </span>test_serialize_binary_vector_with_null_to_json() {
<a href=#540 id=540 data-nosnippet>540</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = BinaryVectorBuilder::with_capacity(<span class="number">4</span>);
<a href=#541 id=541 data-nosnippet>541</a> builder.push(<span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#542 id=542 data-nosnippet>542</a> builder.push(<span class="prelude-val">None</span>);
<a href=#543 id=543 data-nosnippet>543</a> builder.push(<span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span>[<span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>]));
<a href=#544 id=544 data-nosnippet>544</a> <span class="kw">let </span>vector = builder.finish();
<a href=#545 id=545 data-nosnippet>545</a>
<a href=#546 id=546 data-nosnippet>546</a> <span class="kw">let </span>json_value = vector.serialize_to_json().unwrap();
<a href=#547 id=547 data-nosnippet>547</a> <span class="macro">assert_eq!</span>(
<a href=#548 id=548 data-nosnippet>548</a> <span class="string">"[[1,2,3],null,[4,5,6]]"</span>,
<a href=#549 id=549 data-nosnippet>549</a> serde_json::to_string(<span class="kw-2">&amp;</span>json_value).unwrap()
<a href=#550 id=550 data-nosnippet>550</a> );
<a href=#551 id=551 data-nosnippet>551</a> }
<a href=#552 id=552 data-nosnippet>552</a>
<a href=#553 id=553 data-nosnippet>553</a> <span class="attr">#[test]
<a href=#554 id=554 data-nosnippet>554</a> </span><span class="kw">fn </span>test_from_arrow_array() {
<a href=#555 id=555 data-nosnippet>555</a> <span class="kw">let </span>arrow_array = BinaryArray::from_iter_values([<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>], <span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]]);
<a href=#556 id=556 data-nosnippet>556</a> <span class="kw">let </span>original = BinaryArray::from(arrow_array.to_data());
<a href=#557 id=557 data-nosnippet>557</a> <span class="kw">let </span>vector = BinaryVector::from(arrow_array);
<a href=#558 id=558 data-nosnippet>558</a> <span class="kw">let </span>BinaryArrayData::Binary(array) = <span class="kw-2">&amp;</span>vector.array <span class="kw">else </span>{
<a href=#559 id=559 data-nosnippet>559</a> <span class="macro">panic!</span>(<span class="string">"Expected BinaryArray"</span>);
<a href=#560 id=560 data-nosnippet>560</a> };
<a href=#561 id=561 data-nosnippet>561</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>original, array);
<a href=#562 id=562 data-nosnippet>562</a> }
<a href=#563 id=563 data-nosnippet>563</a>
<a href=#564 id=564 data-nosnippet>564</a> <span class="attr">#[test]
<a href=#565 id=565 data-nosnippet>565</a> </span><span class="kw">fn </span>test_from_large_binary_arrow_array() {
<a href=#566 id=566 data-nosnippet>566</a> <span class="kw">let </span>arrow_array = LargeBinaryArray::from_iter_values([<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>], <span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]]);
<a href=#567 id=567 data-nosnippet>567</a> <span class="kw">let </span>original = LargeBinaryArray::from(arrow_array.to_data());
<a href=#568 id=568 data-nosnippet>568</a> <span class="kw">let </span>vector = BinaryVector::from(arrow_array);
<a href=#569 id=569 data-nosnippet>569</a> <span class="kw">let </span>BinaryArrayData::LargeBinary(array) = <span class="kw-2">&amp;</span>vector.array <span class="kw">else </span>{
<a href=#570 id=570 data-nosnippet>570</a> <span class="macro">panic!</span>(<span class="string">"Expected LargeBinaryArray"</span>);
<a href=#571 id=571 data-nosnippet>571</a> };
<a href=#572 id=572 data-nosnippet>572</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>original, array);
<a href=#573 id=573 data-nosnippet>573</a> }
<a href=#574 id=574 data-nosnippet>574</a>
<a href=#575 id=575 data-nosnippet>575</a> <span class="attr">#[test]
<a href=#576 id=576 data-nosnippet>576</a> </span><span class="kw">fn </span>test_binary_vector_build_get() {
<a href=#577 id=577 data-nosnippet>577</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = BinaryVectorBuilder::with_capacity(<span class="number">4</span>);
<a href=#578 id=578 data-nosnippet>578</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"hello"</span>));
<a href=#579 id=579 data-nosnippet>579</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"happy"</span>));
<a href=#580 id=580 data-nosnippet>580</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"world"</span>));
<a href=#581 id=581 data-nosnippet>581</a> builder.push(<span class="prelude-val">None</span>);
<a href=#582 id=582 data-nosnippet>582</a>
<a href=#583 id=583 data-nosnippet>583</a> <span class="kw">let </span>vector = builder.finish();
<a href=#584 id=584 data-nosnippet>584</a> <span class="macro">assert_eq!</span>(<span class="string">b"hello"</span>, vector.get_data(<span class="number">0</span>).unwrap());
<a href=#585 id=585 data-nosnippet>585</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, vector.get_data(<span class="number">3</span>));
<a href=#586 id=586 data-nosnippet>586</a>
<a href=#587 id=587 data-nosnippet>587</a> <span class="macro">assert_eq!</span>(Value::Binary(<span class="string">b"hello"</span>.as_slice().into()), vector.get(<span class="number">0</span>));
<a href=#588 id=588 data-nosnippet>588</a> <span class="macro">assert_eq!</span>(Value::Null, vector.get(<span class="number">3</span>));
<a href=#589 id=589 data-nosnippet>589</a>
<a href=#590 id=590 data-nosnippet>590</a> <span class="kw">let </span><span class="kw-2">mut </span>iter = vector.iter_data();
<a href=#591 id=591 data-nosnippet>591</a> <span class="macro">assert_eq!</span>(<span class="string">b"hello"</span>, iter.next().unwrap().unwrap());
<a href=#592 id=592 data-nosnippet>592</a> <span class="macro">assert_eq!</span>(<span class="string">b"happy"</span>, iter.next().unwrap().unwrap());
<a href=#593 id=593 data-nosnippet>593</a> <span class="macro">assert_eq!</span>(<span class="string">b"world"</span>, iter.next().unwrap().unwrap());
<a href=#594 id=594 data-nosnippet>594</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, iter.next().unwrap());
<a href=#595 id=595 data-nosnippet>595</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, iter.next());
<a href=#596 id=596 data-nosnippet>596</a> }
<a href=#597 id=597 data-nosnippet>597</a>
<a href=#598 id=598 data-nosnippet>598</a> <span class="attr">#[test]
<a href=#599 id=599 data-nosnippet>599</a> </span><span class="kw">fn </span>test_binary_vector_validity() {
<a href=#600 id=600 data-nosnippet>600</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = BinaryVectorBuilder::with_capacity(<span class="number">4</span>);
<a href=#601 id=601 data-nosnippet>601</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"hello"</span>));
<a href=#602 id=602 data-nosnippet>602</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"world"</span>));
<a href=#603 id=603 data-nosnippet>603</a> <span class="kw">let </span>vector = builder.finish();
<a href=#604 id=604 data-nosnippet>604</a> <span class="macro">assert_eq!</span>(<span class="number">0</span>, vector.null_count());
<a href=#605 id=605 data-nosnippet>605</a> <span class="macro">assert!</span>(vector.validity().is_all_valid());
<a href=#606 id=606 data-nosnippet>606</a>
<a href=#607 id=607 data-nosnippet>607</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = BinaryVectorBuilder::with_capacity(<span class="number">3</span>);
<a href=#608 id=608 data-nosnippet>608</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"hello"</span>));
<a href=#609 id=609 data-nosnippet>609</a> builder.push(<span class="prelude-val">None</span>);
<a href=#610 id=610 data-nosnippet>610</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"world"</span>));
<a href=#611 id=611 data-nosnippet>611</a> <span class="kw">let </span>vector = builder.finish();
<a href=#612 id=612 data-nosnippet>612</a> <span class="macro">assert_eq!</span>(<span class="number">1</span>, vector.null_count());
<a href=#613 id=613 data-nosnippet>613</a> <span class="kw">let </span>validity = vector.validity();
<a href=#614 id=614 data-nosnippet>614</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">1</span>));
<a href=#615 id=615 data-nosnippet>615</a>
<a href=#616 id=616 data-nosnippet>616</a> <span class="macro">assert_eq!</span>(<span class="number">1</span>, validity.null_count());
<a href=#617 id=617 data-nosnippet>617</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">1</span>));
<a href=#618 id=618 data-nosnippet>618</a> }
<a href=#619 id=619 data-nosnippet>619</a>
<a href=#620 id=620 data-nosnippet>620</a> <span class="attr">#[test]
<a href=#621 id=621 data-nosnippet>621</a> </span><span class="kw">fn </span>test_binary_vector_builder() {
<a href=#622 id=622 data-nosnippet>622</a> <span class="kw">let </span>input = BinaryVector::from_slice(<span class="kw-2">&amp;</span>[<span class="string">b"world"</span>, <span class="string">b"one"</span>, <span class="string">b"two"</span>]);
<a href=#623 id=623 data-nosnippet>623</a>
<a href=#624 id=624 data-nosnippet>624</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = BinaryType::default().create_mutable_vector(<span class="number">3</span>);
<a href=#625 id=625 data-nosnippet>625</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Binary(<span class="string">"hello"</span>.as_bytes()));
<a href=#626 id=626 data-nosnippet>626</a> <span class="macro">assert!</span>(builder.try_push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Int32(<span class="number">123</span>)).is_err());
<a href=#627 id=627 data-nosnippet>627</a> builder.extend_slice_of(<span class="kw-2">&amp;</span>input, <span class="number">1</span>, <span class="number">2</span>).unwrap();
<a href=#628 id=628 data-nosnippet>628</a> <span class="macro">assert!</span>(
<a href=#629 id=629 data-nosnippet>629</a> builder
<a href=#630 id=630 data-nosnippet>630</a> .extend_slice_of(<span class="kw-2">&amp;</span><span class="kw">crate</span>::vectors::Int32Vector::from_slice([<span class="number">13</span>]), <span class="number">0</span>, <span class="number">1</span>)
<a href=#631 id=631 data-nosnippet>631</a> .is_err()
<a href=#632 id=632 data-nosnippet>632</a> );
<a href=#633 id=633 data-nosnippet>633</a> <span class="kw">let </span>vector = builder.to_vector();
<a href=#634 id=634 data-nosnippet>634</a>
<a href=#635 id=635 data-nosnippet>635</a> <span class="kw">let </span>expect: VectorRef = Arc::new(BinaryVector::from_slice(<span class="kw-2">&amp;</span>[<span class="string">b"hello"</span>, <span class="string">b"one"</span>, <span class="string">b"two"</span>]));
<a href=#636 id=636 data-nosnippet>636</a> <span class="macro">assert_eq!</span>(expect, vector);
<a href=#637 id=637 data-nosnippet>637</a> }
<a href=#638 id=638 data-nosnippet>638</a>
<a href=#639 id=639 data-nosnippet>639</a> <span class="attr">#[test]
<a href=#640 id=640 data-nosnippet>640</a> </span><span class="kw">fn </span>test_binary_vector_builder_finish_cloned() {
<a href=#641 id=641 data-nosnippet>641</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = BinaryVectorBuilder::with_capacity(<span class="number">1024</span>);
<a href=#642 id=642 data-nosnippet>642</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"one"</span>));
<a href=#643 id=643 data-nosnippet>643</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"two"</span>));
<a href=#644 id=644 data-nosnippet>644</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"three"</span>));
<a href=#645 id=645 data-nosnippet>645</a> <span class="kw">let </span>vector = builder.finish_cloned();
<a href=#646 id=646 data-nosnippet>646</a> <span class="macro">assert_eq!</span>(<span class="string">b"one"</span>, vector.get_data(<span class="number">0</span>).unwrap());
<a href=#647 id=647 data-nosnippet>647</a> <span class="macro">assert_eq!</span>(vector.len(), <span class="number">3</span>);
<a href=#648 id=648 data-nosnippet>648</a> <span class="macro">assert_eq!</span>(builder.len(), <span class="number">3</span>);
<a href=#649 id=649 data-nosnippet>649</a>
<a href=#650 id=650 data-nosnippet>650</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">b"four"</span>));
<a href=#651 id=651 data-nosnippet>651</a> <span class="kw">let </span>vector = builder.finish_cloned();
<a href=#652 id=652 data-nosnippet>652</a> <span class="macro">assert_eq!</span>(<span class="string">b"four"</span>, vector.get_data(<span class="number">3</span>).unwrap());
<a href=#653 id=653 data-nosnippet>653</a> <span class="macro">assert_eq!</span>(builder.len(), <span class="number">4</span>);
<a href=#654 id=654 data-nosnippet>654</a> }
<a href=#655 id=655 data-nosnippet>655</a>
<a href=#656 id=656 data-nosnippet>656</a> <span class="attr">#[test]
<a href=#657 id=657 data-nosnippet>657</a> </span><span class="kw">fn </span>test_binary_json_conversion() {
<a href=#658 id=658 data-nosnippet>658</a> <span class="comment">// json strings
<a href=#659 id=659 data-nosnippet>659</a> </span><span class="kw">let </span>json_strings = <span class="macro">vec!</span>[
<a href=#660 id=660 data-nosnippet>660</a> <span class="string">b"{\"hello\": \"world\"}"</span>.to_vec(),
<a href=#661 id=661 data-nosnippet>661</a> <span class="string">b"{\"foo\": 1}"</span>.to_vec(),
<a href=#662 id=662 data-nosnippet>662</a> <span class="string">b"123"</span>.to_vec(),
<a href=#663 id=663 data-nosnippet>663</a> ];
<a href=#664 id=664 data-nosnippet>664</a> <span class="kw">let </span>json_vector = BinaryVector::from(json_strings.clone())
<a href=#665 id=665 data-nosnippet>665</a> .convert_binary_to_json()
<a href=#666 id=666 data-nosnippet>666</a> .unwrap();
<a href=#667 id=667 data-nosnippet>667</a> <span class="kw">let </span>jsonbs = json_strings
<a href=#668 id=668 data-nosnippet>668</a> .iter()
<a href=#669 id=669 data-nosnippet>669</a> .map(|v| jsonb::parse_value(v).unwrap().to_vec())
<a href=#670 id=670 data-nosnippet>670</a> .collect::&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;();
<a href=#671 id=671 data-nosnippet>671</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..<span class="number">3 </span>{
<a href=#672 id=672 data-nosnippet>672</a> <span class="macro">assert_eq!</span>(
<a href=#673 id=673 data-nosnippet>673</a> json_vector.get_ref(i).try_into_binary().unwrap().unwrap(),
<a href=#674 id=674 data-nosnippet>674</a> jsonbs.get(i).unwrap().as_slice()
<a href=#675 id=675 data-nosnippet>675</a> );
<a href=#676 id=676 data-nosnippet>676</a> }
<a href=#677 id=677 data-nosnippet>677</a>
<a href=#678 id=678 data-nosnippet>678</a> <span class="comment">// jsonb
<a href=#679 id=679 data-nosnippet>679</a> </span><span class="kw">let </span>json_vector = BinaryVector::from(jsonbs.clone())
<a href=#680 id=680 data-nosnippet>680</a> .convert_binary_to_json()
<a href=#681 id=681 data-nosnippet>681</a> .unwrap();
<a href=#682 id=682 data-nosnippet>682</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..<span class="number">3 </span>{
<a href=#683 id=683 data-nosnippet>683</a> <span class="macro">assert_eq!</span>(
<a href=#684 id=684 data-nosnippet>684</a> json_vector.get_ref(i).try_into_binary().unwrap().unwrap(),
<a href=#685 id=685 data-nosnippet>685</a> jsonbs.get(i).unwrap().as_slice()
<a href=#686 id=686 data-nosnippet>686</a> );
<a href=#687 id=687 data-nosnippet>687</a> }
<a href=#688 id=688 data-nosnippet>688</a>
<a href=#689 id=689 data-nosnippet>689</a> <span class="comment">// binary with jsonb header (0x80, 0x40, 0x20)
<a href=#690 id=690 data-nosnippet>690</a> </span><span class="kw">let </span>binary_with_jsonb_header: Vec&lt;u8&gt; = [<span class="number">0x80</span>, <span class="number">0x23</span>, <span class="number">0x40</span>, <span class="number">0x22</span>].to_vec();
<a href=#691 id=691 data-nosnippet>691</a> <span class="kw">let </span>error = BinaryVector::from(<span class="macro">vec!</span>[binary_with_jsonb_header])
<a href=#692 id=692 data-nosnippet>692</a> .convert_binary_to_json()
<a href=#693 id=693 data-nosnippet>693</a> .unwrap_err();
<a href=#694 id=694 data-nosnippet>694</a> <span class="macro">assert_matches!</span>(error, error::Error::InvalidJson { .. });
<a href=#695 id=695 data-nosnippet>695</a>
<a href=#696 id=696 data-nosnippet>696</a> <span class="comment">// invalid json string
<a href=#697 id=697 data-nosnippet>697</a> </span><span class="kw">let </span>json_strings = <span class="macro">vec!</span>[<span class="string">b"{\"hello\": \"world\""</span>.to_vec()];
<a href=#698 id=698 data-nosnippet>698</a> <span class="kw">let </span>error = BinaryVector::from(json_strings)
<a href=#699 id=699 data-nosnippet>699</a> .convert_binary_to_json()
<a href=#700 id=700 data-nosnippet>700</a> .unwrap_err();
<a href=#701 id=701 data-nosnippet>701</a> <span class="macro">assert_matches!</span>(error, error::Error::InvalidJson { .. });
<a href=#702 id=702 data-nosnippet>702</a>
<a href=#703 id=703 data-nosnippet>703</a> <span class="comment">// corrupted jsonb
<a href=#704 id=704 data-nosnippet>704</a> </span><span class="kw">let </span>jsonb = jsonb::parse_value(<span class="string">"{\"hello\": \"world\"}"</span>.as_bytes())
<a href=#705 id=705 data-nosnippet>705</a> .unwrap()
<a href=#706 id=706 data-nosnippet>706</a> .to_vec();
<a href=#707 id=707 data-nosnippet>707</a> <span class="kw">let </span>corrupted_jsonb = jsonb[<span class="number">0</span>..jsonb.len() - <span class="number">1</span>].to_vec();
<a href=#708 id=708 data-nosnippet>708</a> <span class="kw">let </span>error = BinaryVector::from(<span class="macro">vec!</span>[corrupted_jsonb])
<a href=#709 id=709 data-nosnippet>709</a> .convert_binary_to_json()
<a href=#710 id=710 data-nosnippet>710</a> .unwrap_err();
<a href=#711 id=711 data-nosnippet>711</a> <span class="macro">assert_matches!</span>(error, error::Error::InvalidJson { .. });
<a href=#712 id=712 data-nosnippet>712</a> }
<a href=#713 id=713 data-nosnippet>713</a>
<a href=#714 id=714 data-nosnippet>714</a> <span class="attr">#[test]
<a href=#715 id=715 data-nosnippet>715</a> </span><span class="kw">fn </span>test_binary_vector_conversion() {
<a href=#716 id=716 data-nosnippet>716</a> <span class="kw">let </span>dim = <span class="number">3</span>;
<a href=#717 id=717 data-nosnippet>717</a> <span class="kw">let </span>vector = BinaryVector::from(<span class="macro">vec!</span>[
<a href=#718 id=718 data-nosnippet>718</a> <span class="prelude-val">Some</span>(<span class="string">b"[1,2,3]"</span>.to_vec()),
<a href=#719 id=719 data-nosnippet>719</a> <span class="prelude-val">Some</span>(<span class="string">b"[4,5,6]"</span>.to_vec()),
<a href=#720 id=720 data-nosnippet>720</a> <span class="prelude-val">Some</span>(<span class="string">b"[7,8,9]"</span>.to_vec()),
<a href=#721 id=721 data-nosnippet>721</a> <span class="prelude-val">None</span>,
<a href=#722 id=722 data-nosnippet>722</a> ]);
<a href=#723 id=723 data-nosnippet>723</a> <span class="kw">let </span>expected = BinaryVector::from(<span class="macro">vec!</span>[
<a href=#724 id=724 data-nosnippet>724</a> <span class="prelude-val">Some</span>(
<a href=#725 id=725 data-nosnippet>725</a> [<span class="number">1.0f32</span>, <span class="number">2.0</span>, <span class="number">3.0</span>]
<a href=#726 id=726 data-nosnippet>726</a> .iter()
<a href=#727 id=727 data-nosnippet>727</a> .flat_map(|v| v.to_le_bytes())
<a href=#728 id=728 data-nosnippet>728</a> .collect(),
<a href=#729 id=729 data-nosnippet>729</a> ),
<a href=#730 id=730 data-nosnippet>730</a> <span class="prelude-val">Some</span>(
<a href=#731 id=731 data-nosnippet>731</a> [<span class="number">4.0f32</span>, <span class="number">5.0</span>, <span class="number">6.0</span>]
<a href=#732 id=732 data-nosnippet>732</a> .iter()
<a href=#733 id=733 data-nosnippet>733</a> .flat_map(|v| v.to_le_bytes())
<a href=#734 id=734 data-nosnippet>734</a> .collect(),
<a href=#735 id=735 data-nosnippet>735</a> ),
<a href=#736 id=736 data-nosnippet>736</a> <span class="prelude-val">Some</span>(
<a href=#737 id=737 data-nosnippet>737</a> [<span class="number">7.0f32</span>, <span class="number">8.0</span>, <span class="number">9.0</span>]
<a href=#738 id=738 data-nosnippet>738</a> .iter()
<a href=#739 id=739 data-nosnippet>739</a> .flat_map(|v| v.to_le_bytes())
<a href=#740 id=740 data-nosnippet>740</a> .collect(),
<a href=#741 id=741 data-nosnippet>741</a> ),
<a href=#742 id=742 data-nosnippet>742</a> <span class="prelude-val">None</span>,
<a href=#743 id=743 data-nosnippet>743</a> ]);
<a href=#744 id=744 data-nosnippet>744</a>
<a href=#745 id=745 data-nosnippet>745</a> <span class="kw">let </span>converted = vector.convert_binary_to_vector(dim).unwrap();
<a href=#746 id=746 data-nosnippet>746</a> <span class="macro">assert_eq!</span>(converted.len(), expected.len());
<a href=#747 id=747 data-nosnippet>747</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..<span class="number">3 </span>{
<a href=#748 id=748 data-nosnippet>748</a> <span class="macro">assert_eq!</span>(
<a href=#749 id=749 data-nosnippet>749</a> converted.get_ref(i).try_into_binary().unwrap().unwrap(),
<a href=#750 id=750 data-nosnippet>750</a> expected.get_ref(i).try_into_binary().unwrap().unwrap()
<a href=#751 id=751 data-nosnippet>751</a> );
<a href=#752 id=752 data-nosnippet>752</a> }
<a href=#753 id=753 data-nosnippet>753</a> }
<a href=#754 id=754 data-nosnippet>754</a>}
</code></pre></div></section></main></body></html>
+385
View File
@@ -0,0 +1,385 @@
<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/boolean.rs`."><title>boolean.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>boolean.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::any::Any;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::sync::Arc;
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>arrow::array::{Array, ArrayBuilder, ArrayIter, ArrayRef, BooleanArray, BooleanBuilder};
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>snafu::ResultExt;
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::error::Result;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::scalars::{ScalarVector, ScalarVectorBuilder};
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::value::{Value, ValueRef};
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{<span class="self">self</span>, MutableVector, Validity, Vector, VectorRef};
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="doccomment">/// Vector of boolean.
<a href=#29 id=29 data-nosnippet>29</a></span><span class="attr">#[derive(Debug, PartialEq)]
<a href=#30 id=30 data-nosnippet>30</a></span><span class="kw">pub struct </span>BooleanVector {
<a href=#31 id=31 data-nosnippet>31</a> array: BooleanArray,
<a href=#32 id=32 data-nosnippet>32</a>}
<a href=#33 id=33 data-nosnippet>33</a>
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">impl </span>BooleanVector {
<a href=#35 id=35 data-nosnippet>35</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>as_arrow(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Array {
<a href=#36 id=36 data-nosnippet>36</a> <span class="kw-2">&amp;</span><span class="self">self</span>.array
<a href=#37 id=37 data-nosnippet>37</a> }
<a href=#38 id=38 data-nosnippet>38</a>
<a href=#39 id=39 data-nosnippet>39</a> <span class="doccomment">/// Get the inner boolean array.
<a href=#40 id=40 data-nosnippet>40</a> </span><span class="kw">pub fn </span>as_boolean_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>BooleanArray {
<a href=#41 id=41 data-nosnippet>41</a> <span class="kw-2">&amp;</span><span class="self">self</span>.array
<a href=#42 id=42 data-nosnippet>42</a> }
<a href=#43 id=43 data-nosnippet>43</a>}
<a href=#44 id=44 data-nosnippet>44</a>
<a href=#45 id=45 data-nosnippet>45</a><span class="kw">impl </span>From&lt;Vec&lt;bool&gt;&gt; <span class="kw">for </span>BooleanVector {
<a href=#46 id=46 data-nosnippet>46</a> <span class="kw">fn </span>from(data: Vec&lt;bool&gt;) -&gt; <span class="self">Self </span>{
<a href=#47 id=47 data-nosnippet>47</a> BooleanVector {
<a href=#48 id=48 data-nosnippet>48</a> array: BooleanArray::from(data),
<a href=#49 id=49 data-nosnippet>49</a> }
<a href=#50 id=50 data-nosnippet>50</a> }
<a href=#51 id=51 data-nosnippet>51</a>}
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a><span class="kw">impl </span>From&lt;BooleanArray&gt; <span class="kw">for </span>BooleanVector {
<a href=#54 id=54 data-nosnippet>54</a> <span class="kw">fn </span>from(array: BooleanArray) -&gt; <span class="self">Self </span>{
<a href=#55 id=55 data-nosnippet>55</a> <span class="self">Self </span>{ array }
<a href=#56 id=56 data-nosnippet>56</a> }
<a href=#57 id=57 data-nosnippet>57</a>}
<a href=#58 id=58 data-nosnippet>58</a>
<a href=#59 id=59 data-nosnippet>59</a><span class="kw">impl </span>From&lt;Vec&lt;<span class="prelude-ty">Option</span>&lt;bool&gt;&gt;&gt; <span class="kw">for </span>BooleanVector {
<a href=#60 id=60 data-nosnippet>60</a> <span class="kw">fn </span>from(data: Vec&lt;<span class="prelude-ty">Option</span>&lt;bool&gt;&gt;) -&gt; <span class="self">Self </span>{
<a href=#61 id=61 data-nosnippet>61</a> BooleanVector {
<a href=#62 id=62 data-nosnippet>62</a> array: BooleanArray::from(data),
<a href=#63 id=63 data-nosnippet>63</a> }
<a href=#64 id=64 data-nosnippet>64</a> }
<a href=#65 id=65 data-nosnippet>65</a>}
<a href=#66 id=66 data-nosnippet>66</a>
<a href=#67 id=67 data-nosnippet>67</a><span class="kw">impl </span>FromIterator&lt;<span class="prelude-ty">Option</span>&lt;bool&gt;&gt; <span class="kw">for </span>BooleanVector {
<a href=#68 id=68 data-nosnippet>68</a> <span class="kw">fn </span>from_iter&lt;T: IntoIterator&lt;Item = <span class="prelude-ty">Option</span>&lt;bool&gt;&gt;&gt;(iter: T) -&gt; <span class="self">Self </span>{
<a href=#69 id=69 data-nosnippet>69</a> BooleanVector {
<a href=#70 id=70 data-nosnippet>70</a> array: BooleanArray::from_iter(iter),
<a href=#71 id=71 data-nosnippet>71</a> }
<a href=#72 id=72 data-nosnippet>72</a> }
<a href=#73 id=73 data-nosnippet>73</a>}
<a href=#74 id=74 data-nosnippet>74</a>
<a href=#75 id=75 data-nosnippet>75</a><span class="kw">impl </span>Vector <span class="kw">for </span>BooleanVector {
<a href=#76 id=76 data-nosnippet>76</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#77 id=77 data-nosnippet>77</a> ConcreteDataType::boolean_datatype()
<a href=#78 id=78 data-nosnippet>78</a> }
<a href=#79 id=79 data-nosnippet>79</a>
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">fn </span>vector_type_name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#81 id=81 data-nosnippet>81</a> <span class="string">"BooleanVector"</span>.to_string()
<a href=#82 id=82 data-nosnippet>82</a> }
<a href=#83 id=83 data-nosnippet>83</a>
<a href=#84 id=84 data-nosnippet>84</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#85 id=85 data-nosnippet>85</a> <span class="self">self
<a href=#86 id=86 data-nosnippet>86</a> </span>}
<a href=#87 id=87 data-nosnippet>87</a>
<a href=#88 id=88 data-nosnippet>88</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#89 id=89 data-nosnippet>89</a> <span class="self">self</span>.array.len()
<a href=#90 id=90 data-nosnippet>90</a> }
<a href=#91 id=91 data-nosnippet>91</a>
<a href=#92 id=92 data-nosnippet>92</a> <span class="kw">fn </span>to_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrayRef {
<a href=#93 id=93 data-nosnippet>93</a> Arc::new(<span class="self">self</span>.array.clone())
<a href=#94 id=94 data-nosnippet>94</a> }
<a href=#95 id=95 data-nosnippet>95</a>
<a href=#96 id=96 data-nosnippet>96</a> <span class="kw">fn </span>to_boxed_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Box&lt;<span class="kw">dyn </span>Array&gt; {
<a href=#97 id=97 data-nosnippet>97</a> Box::new(<span class="self">self</span>.array.clone())
<a href=#98 id=98 data-nosnippet>98</a> }
<a href=#99 id=99 data-nosnippet>99</a>
<a href=#100 id=100 data-nosnippet>100</a> <span class="kw">fn </span>validity(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Validity {
<a href=#101 id=101 data-nosnippet>101</a> <span class="macro">vectors::impl_validity_for_vector!</span>(<span class="self">self</span>.array)
<a href=#102 id=102 data-nosnippet>102</a> }
<a href=#103 id=103 data-nosnippet>103</a>
<a href=#104 id=104 data-nosnippet>104</a> <span class="kw">fn </span>memory_size(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#105 id=105 data-nosnippet>105</a> <span class="self">self</span>.array.get_buffer_memory_size()
<a href=#106 id=106 data-nosnippet>106</a> }
<a href=#107 id=107 data-nosnippet>107</a>
<a href=#108 id=108 data-nosnippet>108</a> <span class="kw">fn </span>null_count(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#109 id=109 data-nosnippet>109</a> <span class="self">self</span>.array.null_count()
<a href=#110 id=110 data-nosnippet>110</a> }
<a href=#111 id=111 data-nosnippet>111</a>
<a href=#112 id=112 data-nosnippet>112</a> <span class="kw">fn </span>is_null(<span class="kw-2">&amp;</span><span class="self">self</span>, row: usize) -&gt; bool {
<a href=#113 id=113 data-nosnippet>113</a> <span class="self">self</span>.array.is_null(row)
<a href=#114 id=114 data-nosnippet>114</a> }
<a href=#115 id=115 data-nosnippet>115</a>
<a href=#116 id=116 data-nosnippet>116</a> <span class="kw">fn </span>slice(<span class="kw-2">&amp;</span><span class="self">self</span>, offset: usize, length: usize) -&gt; VectorRef {
<a href=#117 id=117 data-nosnippet>117</a> Arc::new(<span class="self">Self</span>::from(<span class="self">self</span>.array.slice(offset, length)))
<a href=#118 id=118 data-nosnippet>118</a> }
<a href=#119 id=119 data-nosnippet>119</a>
<a href=#120 id=120 data-nosnippet>120</a> <span class="kw">fn </span>get(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; Value {
<a href=#121 id=121 data-nosnippet>121</a> <span class="macro">vectors::impl_get_for_vector!</span>(<span class="self">self</span>.array, index)
<a href=#122 id=122 data-nosnippet>122</a> }
<a href=#123 id=123 data-nosnippet>123</a>
<a href=#124 id=124 data-nosnippet>124</a> <span class="kw">fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; ValueRef&lt;<span class="lifetime">'_</span>&gt; {
<a href=#125 id=125 data-nosnippet>125</a> <span class="macro">vectors::impl_get_ref_for_vector!</span>(<span class="self">self</span>.array, index)
<a href=#126 id=126 data-nosnippet>126</a> }
<a href=#127 id=127 data-nosnippet>127</a>}
<a href=#128 id=128 data-nosnippet>128</a>
<a href=#129 id=129 data-nosnippet>129</a><span class="kw">impl </span>ScalarVector <span class="kw">for </span>BooleanVector {
<a href=#130 id=130 data-nosnippet>130</a> <span class="kw">type </span>OwnedItem = bool;
<a href=#131 id=131 data-nosnippet>131</a> <span class="kw">type </span>RefItem&lt;<span class="lifetime">'a</span>&gt; = bool;
<a href=#132 id=132 data-nosnippet>132</a> <span class="kw">type </span>Iter&lt;<span class="lifetime">'a</span>&gt; = ArrayIter&lt;<span class="kw-2">&amp;</span><span class="lifetime">'a </span>BooleanArray&gt;;
<a href=#133 id=133 data-nosnippet>133</a> <span class="kw">type </span>Builder = BooleanVectorBuilder;
<a href=#134 id=134 data-nosnippet>134</a>
<a href=#135 id=135 data-nosnippet>135</a> <span class="kw">fn </span>get_data(<span class="kw-2">&amp;</span><span class="self">self</span>, idx: usize) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt; {
<a href=#136 id=136 data-nosnippet>136</a> <span class="kw">if </span><span class="self">self</span>.array.is_valid(idx) {
<a href=#137 id=137 data-nosnippet>137</a> <span class="prelude-val">Some</span>(<span class="self">self</span>.array.value(idx))
<a href=#138 id=138 data-nosnippet>138</a> } <span class="kw">else </span>{
<a href=#139 id=139 data-nosnippet>139</a> <span class="prelude-val">None
<a href=#140 id=140 data-nosnippet>140</a> </span>}
<a href=#141 id=141 data-nosnippet>141</a> }
<a href=#142 id=142 data-nosnippet>142</a>
<a href=#143 id=143 data-nosnippet>143</a> <span class="kw">fn </span>iter_data(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::Iter&lt;<span class="lifetime">'_</span>&gt; {
<a href=#144 id=144 data-nosnippet>144</a> <span class="self">self</span>.array.iter()
<a href=#145 id=145 data-nosnippet>145</a> }
<a href=#146 id=146 data-nosnippet>146</a>}
<a href=#147 id=147 data-nosnippet>147</a>
<a href=#148 id=148 data-nosnippet>148</a><span class="kw">pub struct </span>BooleanVectorBuilder {
<a href=#149 id=149 data-nosnippet>149</a> mutable_array: BooleanBuilder,
<a href=#150 id=150 data-nosnippet>150</a>}
<a href=#151 id=151 data-nosnippet>151</a>
<a href=#152 id=152 data-nosnippet>152</a><span class="kw">impl </span>MutableVector <span class="kw">for </span>BooleanVectorBuilder {
<a href=#153 id=153 data-nosnippet>153</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#154 id=154 data-nosnippet>154</a> ConcreteDataType::boolean_datatype()
<a href=#155 id=155 data-nosnippet>155</a> }
<a href=#156 id=156 data-nosnippet>156</a>
<a href=#157 id=157 data-nosnippet>157</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#158 id=158 data-nosnippet>158</a> <span class="self">self</span>.mutable_array.len()
<a href=#159 id=159 data-nosnippet>159</a> }
<a href=#160 id=160 data-nosnippet>160</a>
<a href=#161 id=161 data-nosnippet>161</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#162 id=162 data-nosnippet>162</a> <span class="self">self
<a href=#163 id=163 data-nosnippet>163</a> </span>}
<a href=#164 id=164 data-nosnippet>164</a>
<a href=#165 id=165 data-nosnippet>165</a> <span class="kw">fn </span>as_mut_any(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span><span class="kw">dyn </span>Any {
<a href=#166 id=166 data-nosnippet>166</a> <span class="self">self
<a href=#167 id=167 data-nosnippet>167</a> </span>}
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a> <span class="kw">fn </span>to_vector(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; VectorRef {
<a href=#170 id=170 data-nosnippet>170</a> Arc::new(<span class="self">self</span>.finish())
<a href=#171 id=171 data-nosnippet>171</a> }
<a href=#172 id=172 data-nosnippet>172</a>
<a href=#173 id=173 data-nosnippet>173</a> <span class="kw">fn </span>to_vector_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; VectorRef {
<a href=#174 id=174 data-nosnippet>174</a> Arc::new(<span class="self">self</span>.finish_cloned())
<a href=#175 id=175 data-nosnippet>175</a> }
<a href=#176 id=176 data-nosnippet>176</a>
<a href=#177 id=177 data-nosnippet>177</a> <span class="kw">fn </span>try_push_value_ref(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#178 id=178 data-nosnippet>178</a> <span class="kw">match </span>value.try_into_boolean()<span class="question-mark">? </span>{
<a href=#179 id=179 data-nosnippet>179</a> <span class="prelude-val">Some</span>(v) =&gt; <span class="self">self</span>.mutable_array.append_value(v),
<a href=#180 id=180 data-nosnippet>180</a> <span class="prelude-val">None </span>=&gt; <span class="self">self</span>.mutable_array.append_null(),
<a href=#181 id=181 data-nosnippet>181</a> }
<a href=#182 id=182 data-nosnippet>182</a> <span class="prelude-val">Ok</span>(())
<a href=#183 id=183 data-nosnippet>183</a> }
<a href=#184 id=184 data-nosnippet>184</a>
<a href=#185 id=185 data-nosnippet>185</a> <span class="kw">fn </span>extend_slice_of(<span class="kw-2">&amp;mut </span><span class="self">self</span>, vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector, offset: usize, length: usize) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#186 id=186 data-nosnippet>186</a> <span class="macro">vectors::impl_extend_for_builder!</span>(<span class="self">self</span>, vector, BooleanVector, offset, length)
<a href=#187 id=187 data-nosnippet>187</a> }
<a href=#188 id=188 data-nosnippet>188</a>
<a href=#189 id=189 data-nosnippet>189</a> <span class="kw">fn </span>push_null(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#190 id=190 data-nosnippet>190</a> <span class="self">self</span>.mutable_array.append_null()
<a href=#191 id=191 data-nosnippet>191</a> }
<a href=#192 id=192 data-nosnippet>192</a>}
<a href=#193 id=193 data-nosnippet>193</a>
<a href=#194 id=194 data-nosnippet>194</a><span class="kw">impl </span>ScalarVectorBuilder <span class="kw">for </span>BooleanVectorBuilder {
<a href=#195 id=195 data-nosnippet>195</a> <span class="kw">type </span>VectorType = BooleanVector;
<a href=#196 id=196 data-nosnippet>196</a>
<a href=#197 id=197 data-nosnippet>197</a> <span class="kw">fn </span>with_capacity(capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#198 id=198 data-nosnippet>198</a> <span class="self">Self </span>{
<a href=#199 id=199 data-nosnippet>199</a> mutable_array: BooleanBuilder::with_capacity(capacity),
<a href=#200 id=200 data-nosnippet>200</a> }
<a href=#201 id=201 data-nosnippet>201</a> }
<a href=#202 id=202 data-nosnippet>202</a>
<a href=#203 id=203 data-nosnippet>203</a> <span class="kw">fn </span>push(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="prelude-ty">Option</span>&lt;&lt;<span class="self">Self</span>::VectorType <span class="kw">as </span>ScalarVector&gt;::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt;) {
<a href=#204 id=204 data-nosnippet>204</a> <span class="kw">match </span>value {
<a href=#205 id=205 data-nosnippet>205</a> <span class="prelude-val">Some</span>(v) =&gt; <span class="self">self</span>.mutable_array.append_value(v),
<a href=#206 id=206 data-nosnippet>206</a> <span class="prelude-val">None </span>=&gt; <span class="self">self</span>.mutable_array.append_null(),
<a href=#207 id=207 data-nosnippet>207</a> }
<a href=#208 id=208 data-nosnippet>208</a> }
<a href=#209 id=209 data-nosnippet>209</a>
<a href=#210 id=210 data-nosnippet>210</a> <span class="kw">fn </span>finish(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#211 id=211 data-nosnippet>211</a> BooleanVector {
<a href=#212 id=212 data-nosnippet>212</a> array: <span class="self">self</span>.mutable_array.finish(),
<a href=#213 id=213 data-nosnippet>213</a> }
<a href=#214 id=214 data-nosnippet>214</a> }
<a href=#215 id=215 data-nosnippet>215</a>
<a href=#216 id=216 data-nosnippet>216</a> <span class="kw">fn </span>finish_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#217 id=217 data-nosnippet>217</a> BooleanVector {
<a href=#218 id=218 data-nosnippet>218</a> array: <span class="self">self</span>.mutable_array.finish_cloned(),
<a href=#219 id=219 data-nosnippet>219</a> }
<a href=#220 id=220 data-nosnippet>220</a> }
<a href=#221 id=221 data-nosnippet>221</a>}
<a href=#222 id=222 data-nosnippet>222</a>
<a href=#223 id=223 data-nosnippet>223</a><span class="kw">impl </span>Serializable <span class="kw">for </span>BooleanVector {
<a href=#224 id=224 data-nosnippet>224</a> <span class="kw">fn </span>serialize_to_json(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;serde_json::Value&gt;&gt; {
<a href=#225 id=225 data-nosnippet>225</a> <span class="self">self</span>.iter_data()
<a href=#226 id=226 data-nosnippet>226</a> .map(serde_json::to_value)
<a href=#227 id=227 data-nosnippet>227</a> .collect::&lt;serde_json::Result&lt;<span class="kw">_</span>&gt;&gt;()
<a href=#228 id=228 data-nosnippet>228</a> .context(<span class="kw">crate</span>::error::SerializeSnafu)
<a href=#229 id=229 data-nosnippet>229</a> }
<a href=#230 id=230 data-nosnippet>230</a>}
<a href=#231 id=231 data-nosnippet>231</a>
<a href=#232 id=232 data-nosnippet>232</a><span class="macro">vectors::impl_try_from_arrow_array_for_vector!</span>(BooleanArray, BooleanVector);
<a href=#233 id=233 data-nosnippet>233</a>
<a href=#234 id=234 data-nosnippet>234</a><span class="attr">#[cfg(test)]
<a href=#235 id=235 data-nosnippet>235</a></span><span class="kw">mod </span>tests {
<a href=#236 id=236 data-nosnippet>236</a> <span class="kw">use </span>arrow::datatypes::DataType <span class="kw">as </span>ArrowDataType;
<a href=#237 id=237 data-nosnippet>237</a> <span class="kw">use </span>serde_json;
<a href=#238 id=238 data-nosnippet>238</a>
<a href=#239 id=239 data-nosnippet>239</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#240 id=240 data-nosnippet>240</a> <span class="kw">use </span><span class="kw">crate</span>::data_type::DataType;
<a href=#241 id=241 data-nosnippet>241</a> <span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#242 id=242 data-nosnippet>242</a> <span class="kw">use </span><span class="kw">crate</span>::types::BooleanType;
<a href=#243 id=243 data-nosnippet>243</a>
<a href=#244 id=244 data-nosnippet>244</a> <span class="attr">#[test]
<a href=#245 id=245 data-nosnippet>245</a> </span><span class="kw">fn </span>test_boolean_vector_misc() {
<a href=#246 id=246 data-nosnippet>246</a> <span class="kw">let </span>bools = <span class="macro">vec!</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>];
<a href=#247 id=247 data-nosnippet>247</a> <span class="kw">let </span>v = BooleanVector::from(bools.clone());
<a href=#248 id=248 data-nosnippet>248</a> <span class="macro">assert_eq!</span>(<span class="number">9</span>, v.len());
<a href=#249 id=249 data-nosnippet>249</a> <span class="macro">assert_eq!</span>(<span class="string">"BooleanVector"</span>, v.vector_type_name());
<a href=#250 id=250 data-nosnippet>250</a> <span class="macro">assert!</span>(v.validity().is_all_valid());
<a href=#251 id=251 data-nosnippet>251</a> <span class="macro">assert!</span>(!v.only_null());
<a href=#252 id=252 data-nosnippet>252</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, v.memory_size());
<a href=#253 id=253 data-nosnippet>253</a>
<a href=#254 id=254 data-nosnippet>254</a> <span class="kw">for </span>(i, b) <span class="kw">in </span>bools.iter().enumerate() {
<a href=#255 id=255 data-nosnippet>255</a> <span class="macro">assert!</span>(!v.is_null(i));
<a href=#256 id=256 data-nosnippet>256</a> <span class="macro">assert_eq!</span>(Value::Boolean(<span class="kw-2">*</span>b), v.get(i));
<a href=#257 id=257 data-nosnippet>257</a> <span class="macro">assert_eq!</span>(ValueRef::Boolean(<span class="kw-2">*</span>b), v.get_ref(i));
<a href=#258 id=258 data-nosnippet>258</a> }
<a href=#259 id=259 data-nosnippet>259</a>
<a href=#260 id=260 data-nosnippet>260</a> <span class="kw">let </span>arrow_arr = v.to_arrow_array();
<a href=#261 id=261 data-nosnippet>261</a> <span class="macro">assert_eq!</span>(<span class="number">9</span>, arrow_arr.len());
<a href=#262 id=262 data-nosnippet>262</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>ArrowDataType::Boolean, arrow_arr.data_type());
<a href=#263 id=263 data-nosnippet>263</a> }
<a href=#264 id=264 data-nosnippet>264</a>
<a href=#265 id=265 data-nosnippet>265</a> <span class="attr">#[test]
<a href=#266 id=266 data-nosnippet>266</a> </span><span class="kw">fn </span>test_serialize_boolean_vector_to_json() {
<a href=#267 id=267 data-nosnippet>267</a> <span class="kw">let </span>vector = BooleanVector::from(<span class="macro">vec!</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">false</span>]);
<a href=#268 id=268 data-nosnippet>268</a>
<a href=#269 id=269 data-nosnippet>269</a> <span class="kw">let </span>json_value = vector.serialize_to_json().unwrap();
<a href=#270 id=270 data-nosnippet>270</a> <span class="macro">assert_eq!</span>(
<a href=#271 id=271 data-nosnippet>271</a> <span class="string">"[true,false,true,true,false,false]"</span>,
<a href=#272 id=272 data-nosnippet>272</a> serde_json::to_string(<span class="kw-2">&amp;</span>json_value).unwrap(),
<a href=#273 id=273 data-nosnippet>273</a> );
<a href=#274 id=274 data-nosnippet>274</a> }
<a href=#275 id=275 data-nosnippet>275</a>
<a href=#276 id=276 data-nosnippet>276</a> <span class="attr">#[test]
<a href=#277 id=277 data-nosnippet>277</a> </span><span class="kw">fn </span>test_serialize_boolean_vector_with_null_to_json() {
<a href=#278 id=278 data-nosnippet>278</a> <span class="kw">let </span>vector = BooleanVector::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="bool-val">true</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="bool-val">false</span>)]);
<a href=#279 id=279 data-nosnippet>279</a>
<a href=#280 id=280 data-nosnippet>280</a> <span class="kw">let </span>json_value = vector.serialize_to_json().unwrap();
<a href=#281 id=281 data-nosnippet>281</a> <span class="macro">assert_eq!</span>(
<a href=#282 id=282 data-nosnippet>282</a> <span class="string">"[true,null,false]"</span>,
<a href=#283 id=283 data-nosnippet>283</a> serde_json::to_string(<span class="kw-2">&amp;</span>json_value).unwrap(),
<a href=#284 id=284 data-nosnippet>284</a> );
<a href=#285 id=285 data-nosnippet>285</a> }
<a href=#286 id=286 data-nosnippet>286</a>
<a href=#287 id=287 data-nosnippet>287</a> <span class="attr">#[test]
<a href=#288 id=288 data-nosnippet>288</a> </span><span class="kw">fn </span>test_boolean_vector_from_vec() {
<a href=#289 id=289 data-nosnippet>289</a> <span class="kw">let </span>input = <span class="macro">vec!</span>[<span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>];
<a href=#290 id=290 data-nosnippet>290</a> <span class="kw">let </span>vec = BooleanVector::from(input.clone());
<a href=#291 id=291 data-nosnippet>291</a> <span class="macro">assert_eq!</span>(<span class="number">4</span>, vec.len());
<a href=#292 id=292 data-nosnippet>292</a> <span class="kw">for </span>(i, v) <span class="kw">in </span>input.into_iter().enumerate() {
<a href=#293 id=293 data-nosnippet>293</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(v), vec.get_data(i), <span class="string">"Failed at {i}"</span>)
<a href=#294 id=294 data-nosnippet>294</a> }
<a href=#295 id=295 data-nosnippet>295</a> }
<a href=#296 id=296 data-nosnippet>296</a>
<a href=#297 id=297 data-nosnippet>297</a> <span class="attr">#[test]
<a href=#298 id=298 data-nosnippet>298</a> </span><span class="kw">fn </span>test_boolean_vector_from_iter() {
<a href=#299 id=299 data-nosnippet>299</a> <span class="kw">let </span>input = <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="bool-val">false</span>), <span class="prelude-val">Some</span>(<span class="bool-val">true</span>), <span class="prelude-val">Some</span>(<span class="bool-val">false</span>), <span class="prelude-val">Some</span>(<span class="bool-val">true</span>)];
<a href=#300 id=300 data-nosnippet>300</a> <span class="kw">let </span>vec = input.iter().cloned().collect::&lt;BooleanVector&gt;();
<a href=#301 id=301 data-nosnippet>301</a> <span class="macro">assert_eq!</span>(<span class="number">4</span>, vec.len());
<a href=#302 id=302 data-nosnippet>302</a> <span class="kw">for </span>(i, v) <span class="kw">in </span>input.into_iter().enumerate() {
<a href=#303 id=303 data-nosnippet>303</a> <span class="macro">assert_eq!</span>(v, vec.get_data(i), <span class="string">"Failed at {i}"</span>)
<a href=#304 id=304 data-nosnippet>304</a> }
<a href=#305 id=305 data-nosnippet>305</a> }
<a href=#306 id=306 data-nosnippet>306</a>
<a href=#307 id=307 data-nosnippet>307</a> <span class="attr">#[test]
<a href=#308 id=308 data-nosnippet>308</a> </span><span class="kw">fn </span>test_boolean_vector_from_vec_option() {
<a href=#309 id=309 data-nosnippet>309</a> <span class="kw">let </span>input = <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="bool-val">false</span>), <span class="prelude-val">Some</span>(<span class="bool-val">true</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="bool-val">true</span>)];
<a href=#310 id=310 data-nosnippet>310</a> <span class="kw">let </span>vec = BooleanVector::from(input.clone());
<a href=#311 id=311 data-nosnippet>311</a> <span class="macro">assert_eq!</span>(<span class="number">4</span>, vec.len());
<a href=#312 id=312 data-nosnippet>312</a> <span class="kw">for </span>(i, v) <span class="kw">in </span>input.into_iter().enumerate() {
<a href=#313 id=313 data-nosnippet>313</a> <span class="macro">assert_eq!</span>(v, vec.get_data(i), <span class="string">"failed at {i}"</span>)
<a href=#314 id=314 data-nosnippet>314</a> }
<a href=#315 id=315 data-nosnippet>315</a> }
<a href=#316 id=316 data-nosnippet>316</a>
<a href=#317 id=317 data-nosnippet>317</a> <span class="attr">#[test]
<a href=#318 id=318 data-nosnippet>318</a> </span><span class="kw">fn </span>test_boolean_vector_build_get() {
<a href=#319 id=319 data-nosnippet>319</a> <span class="kw">let </span>input = [<span class="prelude-val">Some</span>(<span class="bool-val">true</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="bool-val">false</span>)];
<a href=#320 id=320 data-nosnippet>320</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = BooleanVectorBuilder::with_capacity(<span class="number">3</span>);
<a href=#321 id=321 data-nosnippet>321</a> <span class="kw">for </span>v <span class="kw">in </span>input {
<a href=#322 id=322 data-nosnippet>322</a> builder.push(v);
<a href=#323 id=323 data-nosnippet>323</a> }
<a href=#324 id=324 data-nosnippet>324</a> <span class="kw">let </span>vector = builder.finish();
<a href=#325 id=325 data-nosnippet>325</a> <span class="macro">assert_eq!</span>(input.len(), vector.len());
<a href=#326 id=326 data-nosnippet>326</a>
<a href=#327 id=327 data-nosnippet>327</a> <span class="kw">let </span>res: Vec&lt;<span class="kw">_</span>&gt; = vector.iter_data().collect();
<a href=#328 id=328 data-nosnippet>328</a> <span class="macro">assert_eq!</span>(input, <span class="kw-2">&amp;</span>res[..]);
<a href=#329 id=329 data-nosnippet>329</a>
<a href=#330 id=330 data-nosnippet>330</a> <span class="kw">for </span>(i, v) <span class="kw">in </span>input.into_iter().enumerate() {
<a href=#331 id=331 data-nosnippet>331</a> <span class="macro">assert_eq!</span>(v, vector.get_data(i));
<a href=#332 id=332 data-nosnippet>332</a> <span class="macro">assert_eq!</span>(Value::from(v), vector.get(i));
<a href=#333 id=333 data-nosnippet>333</a> }
<a href=#334 id=334 data-nosnippet>334</a> }
<a href=#335 id=335 data-nosnippet>335</a>
<a href=#336 id=336 data-nosnippet>336</a> <span class="attr">#[test]
<a href=#337 id=337 data-nosnippet>337</a> </span><span class="kw">fn </span>test_boolean_vector_validity() {
<a href=#338 id=338 data-nosnippet>338</a> <span class="kw">let </span>vector = BooleanVector::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="bool-val">true</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="bool-val">false</span>)]);
<a href=#339 id=339 data-nosnippet>339</a> <span class="macro">assert_eq!</span>(<span class="number">1</span>, vector.null_count());
<a href=#340 id=340 data-nosnippet>340</a> <span class="kw">let </span>validity = vector.validity();
<a href=#341 id=341 data-nosnippet>341</a> <span class="macro">assert_eq!</span>(<span class="number">1</span>, validity.null_count());
<a href=#342 id=342 data-nosnippet>342</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">1</span>));
<a href=#343 id=343 data-nosnippet>343</a>
<a href=#344 id=344 data-nosnippet>344</a> <span class="kw">let </span>vector = BooleanVector::from(<span class="macro">vec!</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">false</span>]);
<a href=#345 id=345 data-nosnippet>345</a> <span class="macro">assert_eq!</span>(<span class="number">0</span>, vector.null_count());
<a href=#346 id=346 data-nosnippet>346</a> <span class="macro">assert!</span>(vector.validity().is_all_valid());
<a href=#347 id=347 data-nosnippet>347</a> }
<a href=#348 id=348 data-nosnippet>348</a>
<a href=#349 id=349 data-nosnippet>349</a> <span class="attr">#[test]
<a href=#350 id=350 data-nosnippet>350</a> </span><span class="kw">fn </span>test_boolean_vector_builder() {
<a href=#351 id=351 data-nosnippet>351</a> <span class="kw">let </span>input = BooleanVector::from_slice(<span class="kw-2">&amp;</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>]);
<a href=#352 id=352 data-nosnippet>352</a>
<a href=#353 id=353 data-nosnippet>353</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = BooleanType.create_mutable_vector(<span class="number">3</span>);
<a href=#354 id=354 data-nosnippet>354</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Boolean(<span class="bool-val">true</span>));
<a href=#355 id=355 data-nosnippet>355</a> <span class="macro">assert!</span>(builder.try_push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Int32(<span class="number">123</span>)).is_err());
<a href=#356 id=356 data-nosnippet>356</a> builder.extend_slice_of(<span class="kw-2">&amp;</span>input, <span class="number">1</span>, <span class="number">2</span>).unwrap();
<a href=#357 id=357 data-nosnippet>357</a> <span class="macro">assert!</span>(
<a href=#358 id=358 data-nosnippet>358</a> builder
<a href=#359 id=359 data-nosnippet>359</a> .extend_slice_of(<span class="kw-2">&amp;</span><span class="kw">crate</span>::vectors::Int32Vector::from_slice([<span class="number">13</span>]), <span class="number">0</span>, <span class="number">1</span>)
<a href=#360 id=360 data-nosnippet>360</a> .is_err()
<a href=#361 id=361 data-nosnippet>361</a> );
<a href=#362 id=362 data-nosnippet>362</a> <span class="kw">let </span>vector = builder.to_vector();
<a href=#363 id=363 data-nosnippet>363</a>
<a href=#364 id=364 data-nosnippet>364</a> <span class="kw">let </span>expect: VectorRef = Arc::new(BooleanVector::from_slice(<span class="kw-2">&amp;</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>]));
<a href=#365 id=365 data-nosnippet>365</a> <span class="macro">assert_eq!</span>(expect, vector);
<a href=#366 id=366 data-nosnippet>366</a> }
<a href=#367 id=367 data-nosnippet>367</a>
<a href=#368 id=368 data-nosnippet>368</a> <span class="attr">#[test]
<a href=#369 id=369 data-nosnippet>369</a> </span><span class="kw">fn </span>test_boolean_vector_builder_finish_cloned() {
<a href=#370 id=370 data-nosnippet>370</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = BooleanVectorBuilder::with_capacity(<span class="number">1024</span>);
<a href=#371 id=371 data-nosnippet>371</a> builder.push(<span class="prelude-val">Some</span>(<span class="bool-val">true</span>));
<a href=#372 id=372 data-nosnippet>372</a> builder.push(<span class="prelude-val">Some</span>(<span class="bool-val">false</span>));
<a href=#373 id=373 data-nosnippet>373</a> builder.push(<span class="prelude-val">Some</span>(<span class="bool-val">true</span>));
<a href=#374 id=374 data-nosnippet>374</a> <span class="kw">let </span>vector = builder.finish_cloned();
<a href=#375 id=375 data-nosnippet>375</a> <span class="macro">assert!</span>(vector.get_data(<span class="number">0</span>).unwrap());
<a href=#376 id=376 data-nosnippet>376</a> <span class="macro">assert_eq!</span>(vector.len(), <span class="number">3</span>);
<a href=#377 id=377 data-nosnippet>377</a> <span class="macro">assert_eq!</span>(builder.len(), <span class="number">3</span>);
<a href=#378 id=378 data-nosnippet>378</a>
<a href=#379 id=379 data-nosnippet>379</a> builder.push(<span class="prelude-val">Some</span>(<span class="bool-val">false</span>));
<a href=#380 id=380 data-nosnippet>380</a> <span class="kw">let </span>vector = builder.finish_cloned();
<a href=#381 id=381 data-nosnippet>381</a> <span class="macro">assert!</span>(!vector.get_data(<span class="number">3</span>).unwrap());
<a href=#382 id=382 data-nosnippet>382</a> <span class="macro">assert_eq!</span>(builder.len(), <span class="number">4</span>);
<a href=#383 id=383 data-nosnippet>383</a> }
<a href=#384 id=384 data-nosnippet>384</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/date.rs`."><title>date.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>date.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span><span class="kw">crate</span>::types::DateType;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{PrimitiveVector, PrimitiveVectorBuilder};
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="comment">// Vector for [`Date`](common_time::Date).
<a href=#19 id=19 data-nosnippet>19</a></span><span class="kw">pub type </span>DateVector = PrimitiveVector&lt;DateType&gt;;
<a href=#20 id=20 data-nosnippet>20</a><span class="comment">// Builder to build DateVector.
<a href=#21 id=21 data-nosnippet>21</a></span><span class="kw">pub type </span>DateVectorBuilder = PrimitiveVectorBuilder&lt;DateType&gt;;
<a href=#22 id=22 data-nosnippet>22</a>
<a href=#23 id=23 data-nosnippet>23</a><span class="attr">#[cfg(test)]
<a href=#24 id=24 data-nosnippet>24</a></span><span class="kw">mod </span>tests {
<a href=#25 id=25 data-nosnippet>25</a> <span class="kw">use </span>std::sync::Arc;
<a href=#26 id=26 data-nosnippet>26</a>
<a href=#27 id=27 data-nosnippet>27</a> <span class="kw">use </span>arrow_array::ArrayRef;
<a href=#28 id=28 data-nosnippet>28</a> <span class="kw">use </span>common_time::date::Date;
<a href=#29 id=29 data-nosnippet>29</a>
<a href=#30 id=30 data-nosnippet>30</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#31 id=31 data-nosnippet>31</a> <span class="kw">use </span><span class="kw">crate</span>::data_type::DataType;
<a href=#32 id=32 data-nosnippet>32</a> <span class="kw">use </span><span class="kw">crate</span>::scalars::{ScalarVector, ScalarVectorBuilder};
<a href=#33 id=33 data-nosnippet>33</a> <span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#34 id=34 data-nosnippet>34</a> <span class="kw">use </span><span class="kw">crate</span>::types::DateType;
<a href=#35 id=35 data-nosnippet>35</a> <span class="kw">use </span><span class="kw">crate</span>::value::{Value, ValueRef};
<a href=#36 id=36 data-nosnippet>36</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::{Vector, VectorRef};
<a href=#37 id=37 data-nosnippet>37</a>
<a href=#38 id=38 data-nosnippet>38</a> <span class="attr">#[test]
<a href=#39 id=39 data-nosnippet>39</a> </span><span class="kw">fn </span>test_build_date_vector() {
<a href=#40 id=40 data-nosnippet>40</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = DateVectorBuilder::with_capacity(<span class="number">4</span>);
<a href=#41 id=41 data-nosnippet>41</a> builder.push(<span class="prelude-val">Some</span>(Date::new(<span class="number">1</span>)));
<a href=#42 id=42 data-nosnippet>42</a> builder.push(<span class="prelude-val">None</span>);
<a href=#43 id=43 data-nosnippet>43</a> builder.push(<span class="prelude-val">Some</span>(Date::new(-<span class="number">1</span>)));
<a href=#44 id=44 data-nosnippet>44</a> <span class="kw">let </span>vector = builder.finish();
<a href=#45 id=45 data-nosnippet>45</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, vector.len());
<a href=#46 id=46 data-nosnippet>46</a> <span class="macro">assert_eq!</span>(Value::Date(Date::new(<span class="number">1</span>)), vector.get(<span class="number">0</span>));
<a href=#47 id=47 data-nosnippet>47</a> <span class="macro">assert_eq!</span>(ValueRef::Date(Date::new(<span class="number">1</span>)), vector.get_ref(<span class="number">0</span>));
<a href=#48 id=48 data-nosnippet>48</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(Date::new(<span class="number">1</span>)), vector.get_data(<span class="number">0</span>));
<a href=#49 id=49 data-nosnippet>49</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, vector.get_data(<span class="number">1</span>));
<a href=#50 id=50 data-nosnippet>50</a> <span class="macro">assert_eq!</span>(Value::Null, vector.get(<span class="number">1</span>));
<a href=#51 id=51 data-nosnippet>51</a> <span class="macro">assert_eq!</span>(ValueRef::Null, vector.get_ref(<span class="number">1</span>));
<a href=#52 id=52 data-nosnippet>52</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(Date::new(-<span class="number">1</span>)), vector.get_data(<span class="number">2</span>));
<a href=#53 id=53 data-nosnippet>53</a> <span class="kw">let </span><span class="kw-2">mut </span>iter = vector.iter_data();
<a href=#54 id=54 data-nosnippet>54</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(Date::new(<span class="number">1</span>)), iter.next().unwrap());
<a href=#55 id=55 data-nosnippet>55</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, iter.next().unwrap());
<a href=#56 id=56 data-nosnippet>56</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(Date::new(-<span class="number">1</span>)), iter.next().unwrap());
<a href=#57 id=57 data-nosnippet>57</a> }
<a href=#58 id=58 data-nosnippet>58</a>
<a href=#59 id=59 data-nosnippet>59</a> <span class="attr">#[test]
<a href=#60 id=60 data-nosnippet>60</a> </span><span class="kw">fn </span>test_date_scalar() {
<a href=#61 id=61 data-nosnippet>61</a> <span class="kw">let </span>vector = DateVector::from_slice([<span class="number">1</span>, <span class="number">2</span>]);
<a href=#62 id=62 data-nosnippet>62</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, vector.len());
<a href=#63 id=63 data-nosnippet>63</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(Date::new(<span class="number">1</span>)), vector.get_data(<span class="number">0</span>));
<a href=#64 id=64 data-nosnippet>64</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(Date::new(<span class="number">2</span>)), vector.get_data(<span class="number">1</span>));
<a href=#65 id=65 data-nosnippet>65</a> }
<a href=#66 id=66 data-nosnippet>66</a>
<a href=#67 id=67 data-nosnippet>67</a> <span class="attr">#[test]
<a href=#68 id=68 data-nosnippet>68</a> </span><span class="kw">fn </span>test_date_vector_builder() {
<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">let </span>input = DateVector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]);
<a href=#70 id=70 data-nosnippet>70</a>
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = DateType.create_mutable_vector(<span class="number">3</span>);
<a href=#72 id=72 data-nosnippet>72</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Date(Date::new(<span class="number">5</span>)));
<a href=#73 id=73 data-nosnippet>73</a> <span class="macro">assert!</span>(builder.try_push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Int32(<span class="number">123</span>)).is_err());
<a href=#74 id=74 data-nosnippet>74</a> builder.extend_slice_of(<span class="kw-2">&amp;</span>input, <span class="number">1</span>, <span class="number">2</span>).unwrap();
<a href=#75 id=75 data-nosnippet>75</a> <span class="macro">assert!</span>(
<a href=#76 id=76 data-nosnippet>76</a> builder
<a href=#77 id=77 data-nosnippet>77</a> .extend_slice_of(<span class="kw-2">&amp;</span><span class="kw">crate</span>::vectors::Int32Vector::from_slice([<span class="number">13</span>]), <span class="number">0</span>, <span class="number">1</span>)
<a href=#78 id=78 data-nosnippet>78</a> .is_err()
<a href=#79 id=79 data-nosnippet>79</a> );
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">let </span>vector = builder.to_vector();
<a href=#81 id=81 data-nosnippet>81</a>
<a href=#82 id=82 data-nosnippet>82</a> <span class="kw">let </span>expect: VectorRef = Arc::new(DateVector::from_slice([<span class="number">5</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#83 id=83 data-nosnippet>83</a> <span class="macro">assert_eq!</span>(expect, vector);
<a href=#84 id=84 data-nosnippet>84</a> }
<a href=#85 id=85 data-nosnippet>85</a>
<a href=#86 id=86 data-nosnippet>86</a> <span class="attr">#[test]
<a href=#87 id=87 data-nosnippet>87</a> </span><span class="kw">fn </span>test_date_from_arrow() {
<a href=#88 id=88 data-nosnippet>88</a> <span class="kw">let </span>vector = DateVector::from_slice([<span class="number">1</span>, <span class="number">2</span>]);
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">let </span>arrow: ArrayRef = Arc::new(vector.as_arrow().slice(<span class="number">0</span>, vector.len()));
<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">let </span>vector2 = DateVector::try_from_arrow_array(<span class="kw-2">&amp;</span>arrow).unwrap();
<a href=#91 id=91 data-nosnippet>91</a> <span class="macro">assert_eq!</span>(vector, vector2);
<a href=#92 id=92 data-nosnippet>92</a> }
<a href=#93 id=93 data-nosnippet>93</a>
<a href=#94 id=94 data-nosnippet>94</a> <span class="attr">#[test]
<a href=#95 id=95 data-nosnippet>95</a> </span><span class="kw">fn </span>test_serialize_date_vector() {
<a href=#96 id=96 data-nosnippet>96</a> <span class="kw">let </span>vector = DateVector::from_slice([-<span class="number">1</span>, <span class="number">0</span>, <span class="number">1</span>]);
<a href=#97 id=97 data-nosnippet>97</a> <span class="kw">let </span>serialized_json = serde_json::to_string(<span class="kw-2">&amp;</span>vector.serialize_to_json().unwrap()).unwrap();
<a href=#98 id=98 data-nosnippet>98</a> <span class="macro">assert_eq!</span>(
<a href=#99 id=99 data-nosnippet>99</a> <span class="string">r#"["1969-12-31","1970-01-01","1970-01-02"]"#</span>,
<a href=#100 id=100 data-nosnippet>100</a> serialized_json
<a href=#101 id=101 data-nosnippet>101</a> );
<a href=#102 id=102 data-nosnippet>102</a> }
<a href=#103 id=103 data-nosnippet>103</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/decimal.rs`."><title>decimal.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>decimal.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::any::Any;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::fmt::Debug;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>std::sync::Arc;
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>arrow_array::builder::{ArrayBuilder, Decimal128Builder};
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>arrow_array::iterator::ArrayIter;
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>arrow_array::{Array, ArrayRef, Decimal128Array};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>common_decimal::Decimal128;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>common_decimal::decimal128::{DECIMAL128_DEFAULT_SCALE, DECIMAL128_MAX_PRECISION};
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>snafu::{OptionExt, ResultExt};
<a href=#25 id=25 data-nosnippet>25</a>
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::arrow::datatypes::DataType <span class="kw">as </span>ArrowDataType;
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span><span class="kw">crate</span>::error::{
<a href=#29 id=29 data-nosnippet>29</a> <span class="self">self</span>, CastTypeSnafu, InvalidPrecisionOrScaleSnafu, <span class="prelude-ty">Result</span>, ValueExceedsPrecisionSnafu,
<a href=#30 id=30 data-nosnippet>30</a>};
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">use </span><span class="kw">crate</span>::prelude::{ScalarVector, ScalarVectorBuilder};
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#33 id=33 data-nosnippet>33</a><span class="kw">use </span><span class="kw">crate</span>::value::{Value, ValueRef};
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">use </span><span class="kw">crate</span>::vectors;
<a href=#35 id=35 data-nosnippet>35</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{MutableVector, Validity, Vector, VectorRef};
<a href=#36 id=36 data-nosnippet>36</a>
<a href=#37 id=37 data-nosnippet>37</a><span class="doccomment">/// Decimal128Vector is a vector keep i128 values with precision and scale.
<a href=#38 id=38 data-nosnippet>38</a></span><span class="attr">#[derive(Debug, PartialEq)]
<a href=#39 id=39 data-nosnippet>39</a></span><span class="kw">pub struct </span>Decimal128Vector {
<a href=#40 id=40 data-nosnippet>40</a> array: Decimal128Array,
<a href=#41 id=41 data-nosnippet>41</a>}
<a href=#42 id=42 data-nosnippet>42</a>
<a href=#43 id=43 data-nosnippet>43</a><span class="kw">impl </span>Decimal128Vector {
<a href=#44 id=44 data-nosnippet>44</a> <span class="doccomment">/// New a Decimal128Vector from Arrow Decimal128Array
<a href=#45 id=45 data-nosnippet>45</a> </span><span class="kw">pub fn </span>new(array: Decimal128Array) -&gt; <span class="self">Self </span>{
<a href=#46 id=46 data-nosnippet>46</a> <span class="self">Self </span>{ array }
<a href=#47 id=47 data-nosnippet>47</a> }
<a href=#48 id=48 data-nosnippet>48</a>
<a href=#49 id=49 data-nosnippet>49</a> <span class="doccomment">/// Construct Vector from i128 values
<a href=#50 id=50 data-nosnippet>50</a> </span><span class="kw">pub fn </span>from_values&lt;I: IntoIterator&lt;Item = i128&gt;&gt;(iter: I) -&gt; <span class="self">Self </span>{
<a href=#51 id=51 data-nosnippet>51</a> <span class="self">Self </span>{
<a href=#52 id=52 data-nosnippet>52</a> array: Decimal128Array::from_iter_values(iter),
<a href=#53 id=53 data-nosnippet>53</a> }
<a href=#54 id=54 data-nosnippet>54</a> }
<a href=#55 id=55 data-nosnippet>55</a>
<a href=#56 id=56 data-nosnippet>56</a> <span class="doccomment">/// Construct Vector from i128 values slice
<a href=#57 id=57 data-nosnippet>57</a> </span><span class="kw">pub fn </span>from_slice&lt;P: AsRef&lt;[i128]&gt;&gt;(slice: P) -&gt; <span class="self">Self </span>{
<a href=#58 id=58 data-nosnippet>58</a> <span class="kw">let </span>iter = slice.as_ref().iter().copied();
<a href=#59 id=59 data-nosnippet>59</a> <span class="self">Self </span>{
<a href=#60 id=60 data-nosnippet>60</a> array: Decimal128Array::from_iter_values(iter),
<a href=#61 id=61 data-nosnippet>61</a> }
<a href=#62 id=62 data-nosnippet>62</a> }
<a href=#63 id=63 data-nosnippet>63</a>
<a href=#64 id=64 data-nosnippet>64</a> <span class="doccomment">/// Construct Vector from Wrapper(Decimal128) values slice
<a href=#65 id=65 data-nosnippet>65</a> </span><span class="kw">pub fn </span>from_wrapper_slice&lt;P: AsRef&lt;[Decimal128]&gt;&gt;(slice: P) -&gt; <span class="self">Self </span>{
<a href=#66 id=66 data-nosnippet>66</a> <span class="kw">let </span>iter = slice.as_ref().iter().copied().map(|v| v.val());
<a href=#67 id=67 data-nosnippet>67</a> <span class="self">Self </span>{
<a href=#68 id=68 data-nosnippet>68</a> array: Decimal128Array::from_iter_values(iter),
<a href=#69 id=69 data-nosnippet>69</a> }
<a href=#70 id=70 data-nosnippet>70</a> }
<a href=#71 id=71 data-nosnippet>71</a>
<a href=#72 id=72 data-nosnippet>72</a> <span class="doccomment">/// Get decimal128 value from vector by offset and length.
<a href=#73 id=73 data-nosnippet>73</a> </span><span class="kw">pub fn </span>get_slice(<span class="kw-2">&amp;</span><span class="self">self</span>, offset: usize, length: usize) -&gt; <span class="self">Self </span>{
<a href=#74 id=74 data-nosnippet>74</a> <span class="kw">let </span>array = <span class="self">self</span>.array.slice(offset, length);
<a href=#75 id=75 data-nosnippet>75</a> <span class="self">Self </span>{ array }
<a href=#76 id=76 data-nosnippet>76</a> }
<a href=#77 id=77 data-nosnippet>77</a>
<a href=#78 id=78 data-nosnippet>78</a> <span class="doccomment">/// Returns a Decimal vector with the same data as self, with the
<a href=#79 id=79 data-nosnippet>79</a> /// specified precision and scale(should in Decimal128 range),
<a href=#80 id=80 data-nosnippet>80</a> /// and return error if value is out of precision bound.
<a href=#81 id=81 data-nosnippet>81</a> ///
<a href=#82 id=82 data-nosnippet>82</a> ///
<a href=#83 id=83 data-nosnippet>83</a> /// For example:
<a href=#84 id=84 data-nosnippet>84</a> /// value = 12345, precision = 3, return error.
<a href=#85 id=85 data-nosnippet>85</a> </span><span class="kw">pub fn </span>with_precision_and_scale(<span class="self">self</span>, precision: u8, scale: i8) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#86 id=86 data-nosnippet>86</a> <span class="kw">let </span>array = <span class="self">self
<a href=#87 id=87 data-nosnippet>87</a> </span>.array
<a href=#88 id=88 data-nosnippet>88</a> .with_precision_and_scale(precision, scale)
<a href=#89 id=89 data-nosnippet>89</a> .context(InvalidPrecisionOrScaleSnafu { precision, scale })<span class="question-mark">?</span>;
<a href=#90 id=90 data-nosnippet>90</a> <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ array })
<a href=#91 id=91 data-nosnippet>91</a> }
<a href=#92 id=92 data-nosnippet>92</a>
<a href=#93 id=93 data-nosnippet>93</a> <span class="doccomment">/// Returns a Decimal vector with the same data as self, with the
<a href=#94 id=94 data-nosnippet>94</a> /// specified precision and scale(should in Decimal128 range),
<a href=#95 id=95 data-nosnippet>95</a> /// and return null if value is out of precision bound.
<a href=#96 id=96 data-nosnippet>96</a> ///
<a href=#97 id=97 data-nosnippet>97</a> /// For example:
<a href=#98 id=98 data-nosnippet>98</a> /// value = 12345, precision = 3, the value will be casted to null.
<a href=#99 id=99 data-nosnippet>99</a> </span><span class="kw">pub fn </span>with_precision_and_scale_to_null(<span class="self">self</span>, precision: u8, scale: i8) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#100 id=100 data-nosnippet>100</a> <span class="self">self</span>.null_if_overflow_precision(precision)
<a href=#101 id=101 data-nosnippet>101</a> .with_precision_and_scale(precision, scale)
<a href=#102 id=102 data-nosnippet>102</a> }
<a href=#103 id=103 data-nosnippet>103</a>
<a href=#104 id=104 data-nosnippet>104</a> <span class="doccomment">/// Return decimal value as string
<a href=#105 id=105 data-nosnippet>105</a> </span><span class="kw">pub fn </span>value_as_string(<span class="kw-2">&amp;</span><span class="self">self</span>, idx: usize) -&gt; String {
<a href=#106 id=106 data-nosnippet>106</a> <span class="self">self</span>.array.value_as_string(idx)
<a href=#107 id=107 data-nosnippet>107</a> }
<a href=#108 id=108 data-nosnippet>108</a>
<a href=#109 id=109 data-nosnippet>109</a> <span class="doccomment">/// Return decimal128 vector precision
<a href=#110 id=110 data-nosnippet>110</a> </span><span class="kw">pub fn </span>precision(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; u8 {
<a href=#111 id=111 data-nosnippet>111</a> <span class="self">self</span>.array.precision()
<a href=#112 id=112 data-nosnippet>112</a> }
<a href=#113 id=113 data-nosnippet>113</a>
<a href=#114 id=114 data-nosnippet>114</a> <span class="doccomment">/// Return decimal128 vector scale
<a href=#115 id=115 data-nosnippet>115</a> </span><span class="kw">pub fn </span>scale(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; i8 {
<a href=#116 id=116 data-nosnippet>116</a> <span class="self">self</span>.array.scale()
<a href=#117 id=117 data-nosnippet>117</a> }
<a href=#118 id=118 data-nosnippet>118</a>
<a href=#119 id=119 data-nosnippet>119</a> <span class="doccomment">/// Return decimal128 vector inner array
<a href=#120 id=120 data-nosnippet>120</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>as_arrow(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Array {
<a href=#121 id=121 data-nosnippet>121</a> <span class="kw-2">&amp;</span><span class="self">self</span>.array
<a href=#122 id=122 data-nosnippet>122</a> }
<a href=#123 id=123 data-nosnippet>123</a>
<a href=#124 id=124 data-nosnippet>124</a> <span class="doccomment">/// Validate decimal precision, if precision is invalid, return error.
<a href=#125 id=125 data-nosnippet>125</a> </span><span class="kw">pub fn </span>validate_decimal_precision(<span class="kw-2">&amp;</span><span class="self">self</span>, precision: u8) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#126 id=126 data-nosnippet>126</a> <span class="self">self</span>.array
<a href=#127 id=127 data-nosnippet>127</a> .validate_decimal_precision(precision)
<a href=#128 id=128 data-nosnippet>128</a> .context(ValueExceedsPrecisionSnafu { precision })
<a href=#129 id=129 data-nosnippet>129</a> }
<a href=#130 id=130 data-nosnippet>130</a>
<a href=#131 id=131 data-nosnippet>131</a> <span class="doccomment">/// Values that exceed the precision bounds will be casted to Null.
<a href=#132 id=132 data-nosnippet>132</a> </span><span class="kw">fn </span>null_if_overflow_precision(<span class="kw-2">&amp;</span><span class="self">self</span>, precision: u8) -&gt; <span class="self">Self </span>{
<a href=#133 id=133 data-nosnippet>133</a> <span class="self">Self </span>{
<a href=#134 id=134 data-nosnippet>134</a> array: <span class="self">self</span>.array.null_if_overflow_precision(precision),
<a href=#135 id=135 data-nosnippet>135</a> }
<a href=#136 id=136 data-nosnippet>136</a> }
<a href=#137 id=137 data-nosnippet>137</a>
<a href=#138 id=138 data-nosnippet>138</a> <span class="doccomment">/// Get decimal128 Value from array by index.
<a href=#139 id=139 data-nosnippet>139</a> </span><span class="kw">fn </span>get_decimal128_value_from_array(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; <span class="prelude-ty">Option</span>&lt;Decimal128&gt; {
<a href=#140 id=140 data-nosnippet>140</a> <span class="kw">if </span><span class="self">self</span>.array.is_valid(index) {
<a href=#141 id=141 data-nosnippet>141</a> <span class="comment">// Safety: The index have been checked by `is_valid()`.
<a href=#142 id=142 data-nosnippet>142</a> </span><span class="kw">let </span>value = <span class="kw">unsafe </span>{ <span class="self">self</span>.array.value_unchecked(index) };
<a href=#143 id=143 data-nosnippet>143</a> <span class="comment">// Safety: The precision and scale have been checked by Vector.
<a href=#144 id=144 data-nosnippet>144</a> </span><span class="prelude-val">Some</span>(Decimal128::new(value, <span class="self">self</span>.precision(), <span class="self">self</span>.scale()))
<a href=#145 id=145 data-nosnippet>145</a> } <span class="kw">else </span>{
<a href=#146 id=146 data-nosnippet>146</a> <span class="prelude-val">None
<a href=#147 id=147 data-nosnippet>147</a> </span>}
<a href=#148 id=148 data-nosnippet>148</a> }
<a href=#149 id=149 data-nosnippet>149</a>}
<a href=#150 id=150 data-nosnippet>150</a>
<a href=#151 id=151 data-nosnippet>151</a><span class="kw">impl </span>Vector <span class="kw">for </span>Decimal128Vector {
<a href=#152 id=152 data-nosnippet>152</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#153 id=153 data-nosnippet>153</a> <span class="kw">if let </span>ArrowDataType::Decimal128(p, s) = <span class="self">self</span>.array.data_type() {
<a href=#154 id=154 data-nosnippet>154</a> ConcreteDataType::decimal128_datatype(<span class="kw-2">*</span>p, <span class="kw-2">*</span>s)
<a href=#155 id=155 data-nosnippet>155</a> } <span class="kw">else </span>{
<a href=#156 id=156 data-nosnippet>156</a> ConcreteDataType::decimal128_default_datatype()
<a href=#157 id=157 data-nosnippet>157</a> }
<a href=#158 id=158 data-nosnippet>158</a> }
<a href=#159 id=159 data-nosnippet>159</a>
<a href=#160 id=160 data-nosnippet>160</a> <span class="kw">fn </span>vector_type_name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#161 id=161 data-nosnippet>161</a> <span class="string">"Decimal128Vector"</span>.to_string()
<a href=#162 id=162 data-nosnippet>162</a> }
<a href=#163 id=163 data-nosnippet>163</a>
<a href=#164 id=164 data-nosnippet>164</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#165 id=165 data-nosnippet>165</a> <span class="self">self
<a href=#166 id=166 data-nosnippet>166</a> </span>}
<a href=#167 id=167 data-nosnippet>167</a>
<a href=#168 id=168 data-nosnippet>168</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#169 id=169 data-nosnippet>169</a> <span class="self">self</span>.array.len()
<a href=#170 id=170 data-nosnippet>170</a> }
<a href=#171 id=171 data-nosnippet>171</a>
<a href=#172 id=172 data-nosnippet>172</a> <span class="kw">fn </span>to_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrayRef {
<a href=#173 id=173 data-nosnippet>173</a> Arc::new(<span class="self">self</span>.array.clone())
<a href=#174 id=174 data-nosnippet>174</a> }
<a href=#175 id=175 data-nosnippet>175</a>
<a href=#176 id=176 data-nosnippet>176</a> <span class="kw">fn </span>to_boxed_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Box&lt;<span class="kw">dyn </span>Array&gt; {
<a href=#177 id=177 data-nosnippet>177</a> Box::new(<span class="self">self</span>.array.clone())
<a href=#178 id=178 data-nosnippet>178</a> }
<a href=#179 id=179 data-nosnippet>179</a>
<a href=#180 id=180 data-nosnippet>180</a> <span class="kw">fn </span>validity(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Validity {
<a href=#181 id=181 data-nosnippet>181</a> <span class="macro">vectors::impl_validity_for_vector!</span>(<span class="self">self</span>.array)
<a href=#182 id=182 data-nosnippet>182</a> }
<a href=#183 id=183 data-nosnippet>183</a>
<a href=#184 id=184 data-nosnippet>184</a> <span class="kw">fn </span>memory_size(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#185 id=185 data-nosnippet>185</a> <span class="self">self</span>.array.get_buffer_memory_size()
<a href=#186 id=186 data-nosnippet>186</a> }
<a href=#187 id=187 data-nosnippet>187</a>
<a href=#188 id=188 data-nosnippet>188</a> <span class="kw">fn </span>null_count(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#189 id=189 data-nosnippet>189</a> <span class="self">self</span>.array.null_count()
<a href=#190 id=190 data-nosnippet>190</a> }
<a href=#191 id=191 data-nosnippet>191</a>
<a href=#192 id=192 data-nosnippet>192</a> <span class="kw">fn </span>is_null(<span class="kw-2">&amp;</span><span class="self">self</span>, row: usize) -&gt; bool {
<a href=#193 id=193 data-nosnippet>193</a> <span class="self">self</span>.array.is_null(row)
<a href=#194 id=194 data-nosnippet>194</a> }
<a href=#195 id=195 data-nosnippet>195</a>
<a href=#196 id=196 data-nosnippet>196</a> <span class="kw">fn </span>slice(<span class="kw-2">&amp;</span><span class="self">self</span>, offset: usize, length: usize) -&gt; VectorRef {
<a href=#197 id=197 data-nosnippet>197</a> Arc::new(<span class="self">self</span>.get_slice(offset, length))
<a href=#198 id=198 data-nosnippet>198</a> }
<a href=#199 id=199 data-nosnippet>199</a>
<a href=#200 id=200 data-nosnippet>200</a> <span class="kw">fn </span>get(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; Value {
<a href=#201 id=201 data-nosnippet>201</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(decimal) = <span class="self">self</span>.get_decimal128_value_from_array(index) {
<a href=#202 id=202 data-nosnippet>202</a> Value::Decimal128(decimal)
<a href=#203 id=203 data-nosnippet>203</a> } <span class="kw">else </span>{
<a href=#204 id=204 data-nosnippet>204</a> Value::Null
<a href=#205 id=205 data-nosnippet>205</a> }
<a href=#206 id=206 data-nosnippet>206</a> }
<a href=#207 id=207 data-nosnippet>207</a>
<a href=#208 id=208 data-nosnippet>208</a> <span class="kw">fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; ValueRef&lt;<span class="lifetime">'_</span>&gt; {
<a href=#209 id=209 data-nosnippet>209</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(decimal) = <span class="self">self</span>.get_decimal128_value_from_array(index) {
<a href=#210 id=210 data-nosnippet>210</a> ValueRef::Decimal128(decimal)
<a href=#211 id=211 data-nosnippet>211</a> } <span class="kw">else </span>{
<a href=#212 id=212 data-nosnippet>212</a> ValueRef::Null
<a href=#213 id=213 data-nosnippet>213</a> }
<a href=#214 id=214 data-nosnippet>214</a> }
<a href=#215 id=215 data-nosnippet>215</a>}
<a href=#216 id=216 data-nosnippet>216</a>
<a href=#217 id=217 data-nosnippet>217</a><span class="kw">impl </span>From&lt;Decimal128Array&gt; <span class="kw">for </span>Decimal128Vector {
<a href=#218 id=218 data-nosnippet>218</a> <span class="kw">fn </span>from(array: Decimal128Array) -&gt; <span class="self">Self </span>{
<a href=#219 id=219 data-nosnippet>219</a> <span class="self">Self </span>{ array }
<a href=#220 id=220 data-nosnippet>220</a> }
<a href=#221 id=221 data-nosnippet>221</a>}
<a href=#222 id=222 data-nosnippet>222</a>
<a href=#223 id=223 data-nosnippet>223</a><span class="kw">impl </span>From&lt;Vec&lt;<span class="prelude-ty">Option</span>&lt;i128&gt;&gt;&gt; <span class="kw">for </span>Decimal128Vector {
<a href=#224 id=224 data-nosnippet>224</a> <span class="kw">fn </span>from(vec: Vec&lt;<span class="prelude-ty">Option</span>&lt;i128&gt;&gt;) -&gt; <span class="self">Self </span>{
<a href=#225 id=225 data-nosnippet>225</a> <span class="kw">let </span>array = Decimal128Array::from_iter(vec);
<a href=#226 id=226 data-nosnippet>226</a> <span class="self">Self </span>{ array }
<a href=#227 id=227 data-nosnippet>227</a> }
<a href=#228 id=228 data-nosnippet>228</a>}
<a href=#229 id=229 data-nosnippet>229</a>
<a href=#230 id=230 data-nosnippet>230</a><span class="kw">impl </span>Serializable <span class="kw">for </span>Decimal128Vector {
<a href=#231 id=231 data-nosnippet>231</a> <span class="kw">fn </span>serialize_to_json(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;serde_json::Value&gt;&gt; {
<a href=#232 id=232 data-nosnippet>232</a> <span class="self">self</span>.iter_data()
<a href=#233 id=233 data-nosnippet>233</a> .map(|v| <span class="kw">match </span>v {
<a href=#234 id=234 data-nosnippet>234</a> <span class="prelude-val">None </span>=&gt; <span class="prelude-val">Ok</span>(serde_json::Value::Null), <span class="comment">// if decimal vector not present, map to NULL
<a href=#235 id=235 data-nosnippet>235</a> </span><span class="prelude-val">Some</span>(d) =&gt; serde_json::to_value(d),
<a href=#236 id=236 data-nosnippet>236</a> })
<a href=#237 id=237 data-nosnippet>237</a> .collect::&lt;serde_json::Result&lt;<span class="kw">_</span>&gt;&gt;()
<a href=#238 id=238 data-nosnippet>238</a> .context(error::SerializeSnafu)
<a href=#239 id=239 data-nosnippet>239</a> }
<a href=#240 id=240 data-nosnippet>240</a>}
<a href=#241 id=241 data-nosnippet>241</a>
<a href=#242 id=242 data-nosnippet>242</a><span class="kw">pub struct </span>Decimal128Iter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#243 id=243 data-nosnippet>243</a> precision: u8,
<a href=#244 id=244 data-nosnippet>244</a> scale: i8,
<a href=#245 id=245 data-nosnippet>245</a> iter: ArrayIter&lt;<span class="kw-2">&amp;</span><span class="lifetime">'a </span>Decimal128Array&gt;,
<a href=#246 id=246 data-nosnippet>246</a>}
<a href=#247 id=247 data-nosnippet>247</a>
<a href=#248 id=248 data-nosnippet>248</a><span class="kw">impl </span>Iterator <span class="kw">for </span>Decimal128Iter&lt;<span class="lifetime">'_</span>&gt; {
<a href=#249 id=249 data-nosnippet>249</a> <span class="kw">type </span>Item = <span class="prelude-ty">Option</span>&lt;Decimal128&gt;;
<a href=#250 id=250 data-nosnippet>250</a>
<a href=#251 id=251 data-nosnippet>251</a> <span class="kw">fn </span>next(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::Item&gt; {
<a href=#252 id=252 data-nosnippet>252</a> <span class="self">self</span>.iter
<a href=#253 id=253 data-nosnippet>253</a> .next()
<a href=#254 id=254 data-nosnippet>254</a> .map(|item| item.map(|v| Decimal128::new(v, <span class="self">self</span>.precision, <span class="self">self</span>.scale)))
<a href=#255 id=255 data-nosnippet>255</a> }
<a href=#256 id=256 data-nosnippet>256</a>
<a href=#257 id=257 data-nosnippet>257</a> <span class="kw">fn </span>size_hint(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; (usize, <span class="prelude-ty">Option</span>&lt;usize&gt;) {
<a href=#258 id=258 data-nosnippet>258</a> <span class="self">self</span>.iter.size_hint()
<a href=#259 id=259 data-nosnippet>259</a> }
<a href=#260 id=260 data-nosnippet>260</a>}
<a href=#261 id=261 data-nosnippet>261</a>
<a href=#262 id=262 data-nosnippet>262</a><span class="kw">impl </span>ScalarVector <span class="kw">for </span>Decimal128Vector {
<a href=#263 id=263 data-nosnippet>263</a> <span class="kw">type </span>OwnedItem = Decimal128;
<a href=#264 id=264 data-nosnippet>264</a>
<a href=#265 id=265 data-nosnippet>265</a> <span class="kw">type </span>RefItem&lt;<span class="lifetime">'a</span>&gt; = Decimal128;
<a href=#266 id=266 data-nosnippet>266</a>
<a href=#267 id=267 data-nosnippet>267</a> <span class="kw">type </span>Iter&lt;<span class="lifetime">'a</span>&gt; = Decimal128Iter&lt;<span class="lifetime">'a</span>&gt;;
<a href=#268 id=268 data-nosnippet>268</a>
<a href=#269 id=269 data-nosnippet>269</a> <span class="kw">type </span>Builder = Decimal128VectorBuilder;
<a href=#270 id=270 data-nosnippet>270</a>
<a href=#271 id=271 data-nosnippet>271</a> <span class="kw">fn </span>get_data(<span class="kw-2">&amp;</span><span class="self">self</span>, idx: usize) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt; {
<a href=#272 id=272 data-nosnippet>272</a> <span class="self">self</span>.get_decimal128_value_from_array(idx)
<a href=#273 id=273 data-nosnippet>273</a> }
<a href=#274 id=274 data-nosnippet>274</a>
<a href=#275 id=275 data-nosnippet>275</a> <span class="kw">fn </span>iter_data(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::Iter&lt;<span class="lifetime">'_</span>&gt; {
<a href=#276 id=276 data-nosnippet>276</a> <span class="self">Self</span>::Iter {
<a href=#277 id=277 data-nosnippet>277</a> precision: <span class="self">self</span>.precision(),
<a href=#278 id=278 data-nosnippet>278</a> scale: <span class="self">self</span>.scale(),
<a href=#279 id=279 data-nosnippet>279</a> iter: <span class="self">self</span>.array.iter(),
<a href=#280 id=280 data-nosnippet>280</a> }
<a href=#281 id=281 data-nosnippet>281</a> }
<a href=#282 id=282 data-nosnippet>282</a>}
<a href=#283 id=283 data-nosnippet>283</a>
<a href=#284 id=284 data-nosnippet>284</a><span class="kw">pub struct </span>Decimal128VectorBuilder {
<a href=#285 id=285 data-nosnippet>285</a> precision: u8,
<a href=#286 id=286 data-nosnippet>286</a> scale: i8,
<a href=#287 id=287 data-nosnippet>287</a> mutable_array: Decimal128Builder,
<a href=#288 id=288 data-nosnippet>288</a>}
<a href=#289 id=289 data-nosnippet>289</a>
<a href=#290 id=290 data-nosnippet>290</a><span class="kw">impl </span>MutableVector <span class="kw">for </span>Decimal128VectorBuilder {
<a href=#291 id=291 data-nosnippet>291</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#292 id=292 data-nosnippet>292</a> ConcreteDataType::decimal128_datatype(<span class="self">self</span>.precision, <span class="self">self</span>.scale)
<a href=#293 id=293 data-nosnippet>293</a> }
<a href=#294 id=294 data-nosnippet>294</a>
<a href=#295 id=295 data-nosnippet>295</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#296 id=296 data-nosnippet>296</a> <span class="self">self</span>.mutable_array.len()
<a href=#297 id=297 data-nosnippet>297</a> }
<a href=#298 id=298 data-nosnippet>298</a>
<a href=#299 id=299 data-nosnippet>299</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#300 id=300 data-nosnippet>300</a> <span class="self">self
<a href=#301 id=301 data-nosnippet>301</a> </span>}
<a href=#302 id=302 data-nosnippet>302</a>
<a href=#303 id=303 data-nosnippet>303</a> <span class="kw">fn </span>as_mut_any(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span><span class="kw">dyn </span>Any {
<a href=#304 id=304 data-nosnippet>304</a> <span class="self">self
<a href=#305 id=305 data-nosnippet>305</a> </span>}
<a href=#306 id=306 data-nosnippet>306</a>
<a href=#307 id=307 data-nosnippet>307</a> <span class="kw">fn </span>to_vector(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; VectorRef {
<a href=#308 id=308 data-nosnippet>308</a> Arc::new(<span class="self">self</span>.finish())
<a href=#309 id=309 data-nosnippet>309</a> }
<a href=#310 id=310 data-nosnippet>310</a>
<a href=#311 id=311 data-nosnippet>311</a> <span class="kw">fn </span>to_vector_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; VectorRef {
<a href=#312 id=312 data-nosnippet>312</a> Arc::new(<span class="self">self</span>.finish_cloned())
<a href=#313 id=313 data-nosnippet>313</a> }
<a href=#314 id=314 data-nosnippet>314</a>
<a href=#315 id=315 data-nosnippet>315</a> <span class="kw">fn </span>try_push_value_ref(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#316 id=316 data-nosnippet>316</a> <span class="kw">let </span>decimal_val = value.try_into_decimal128()<span class="question-mark">?</span>.map(|v| v.val());
<a href=#317 id=317 data-nosnippet>317</a> <span class="self">self</span>.mutable_array.append_option(decimal_val);
<a href=#318 id=318 data-nosnippet>318</a> <span class="prelude-val">Ok</span>(())
<a href=#319 id=319 data-nosnippet>319</a> }
<a href=#320 id=320 data-nosnippet>320</a>
<a href=#321 id=321 data-nosnippet>321</a> <span class="kw">fn </span>push_null(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#322 id=322 data-nosnippet>322</a> <span class="self">self</span>.mutable_array.append_null();
<a href=#323 id=323 data-nosnippet>323</a> }
<a href=#324 id=324 data-nosnippet>324</a>
<a href=#325 id=325 data-nosnippet>325</a> <span class="kw">fn </span>extend_slice_of(<span class="kw-2">&amp;mut </span><span class="self">self</span>, vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector, offset: usize, length: usize) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#326 id=326 data-nosnippet>326</a> <span class="kw">let </span>decimal_vector =
<a href=#327 id=327 data-nosnippet>327</a> vector
<a href=#328 id=328 data-nosnippet>328</a> .as_any()
<a href=#329 id=329 data-nosnippet>329</a> .downcast_ref::&lt;Decimal128Vector&gt;()
<a href=#330 id=330 data-nosnippet>330</a> .context(CastTypeSnafu {
<a href=#331 id=331 data-nosnippet>331</a> msg: <span class="macro">format!</span>(
<a href=#332 id=332 data-nosnippet>332</a> <span class="string">"Failed to cast vector from {} to Decimal128Vector"</span>,
<a href=#333 id=333 data-nosnippet>333</a> vector.vector_type_name(),
<a href=#334 id=334 data-nosnippet>334</a> ),
<a href=#335 id=335 data-nosnippet>335</a> })<span class="question-mark">?</span>;
<a href=#336 id=336 data-nosnippet>336</a> <span class="kw">let </span>slice = decimal_vector.get_slice(offset, length);
<a href=#337 id=337 data-nosnippet>337</a> <span class="self">self</span>.mutable_array
<a href=#338 id=338 data-nosnippet>338</a> .extend(slice.iter_data().map(|v| v.map(|d| d.val())));
<a href=#339 id=339 data-nosnippet>339</a> <span class="prelude-val">Ok</span>(())
<a href=#340 id=340 data-nosnippet>340</a> }
<a href=#341 id=341 data-nosnippet>341</a>}
<a href=#342 id=342 data-nosnippet>342</a>
<a href=#343 id=343 data-nosnippet>343</a><span class="kw">impl </span>ScalarVectorBuilder <span class="kw">for </span>Decimal128VectorBuilder {
<a href=#344 id=344 data-nosnippet>344</a> <span class="kw">type </span>VectorType = Decimal128Vector;
<a href=#345 id=345 data-nosnippet>345</a>
<a href=#346 id=346 data-nosnippet>346</a> <span class="kw">fn </span>with_capacity(capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#347 id=347 data-nosnippet>347</a> <span class="self">Self </span>{
<a href=#348 id=348 data-nosnippet>348</a> precision: DECIMAL128_MAX_PRECISION,
<a href=#349 id=349 data-nosnippet>349</a> scale: DECIMAL128_DEFAULT_SCALE,
<a href=#350 id=350 data-nosnippet>350</a> mutable_array: Decimal128Builder::with_capacity(capacity),
<a href=#351 id=351 data-nosnippet>351</a> }
<a href=#352 id=352 data-nosnippet>352</a> }
<a href=#353 id=353 data-nosnippet>353</a>
<a href=#354 id=354 data-nosnippet>354</a> <span class="kw">fn </span>push(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="prelude-ty">Option</span>&lt;&lt;<span class="self">Self</span>::VectorType <span class="kw">as </span>ScalarVector&gt;::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt;) {
<a href=#355 id=355 data-nosnippet>355</a> <span class="self">self</span>.mutable_array.append_option(value.map(|v| v.val()));
<a href=#356 id=356 data-nosnippet>356</a> }
<a href=#357 id=357 data-nosnippet>357</a>
<a href=#358 id=358 data-nosnippet>358</a> <span class="kw">fn </span>finish(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#359 id=359 data-nosnippet>359</a> Decimal128Vector {
<a href=#360 id=360 data-nosnippet>360</a> array: <span class="self">self</span>.mutable_array.finish(),
<a href=#361 id=361 data-nosnippet>361</a> }
<a href=#362 id=362 data-nosnippet>362</a> }
<a href=#363 id=363 data-nosnippet>363</a>
<a href=#364 id=364 data-nosnippet>364</a> <span class="kw">fn </span>finish_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#365 id=365 data-nosnippet>365</a> Decimal128Vector {
<a href=#366 id=366 data-nosnippet>366</a> array: <span class="self">self</span>.mutable_array.finish_cloned(),
<a href=#367 id=367 data-nosnippet>367</a> }
<a href=#368 id=368 data-nosnippet>368</a> }
<a href=#369 id=369 data-nosnippet>369</a>}
<a href=#370 id=370 data-nosnippet>370</a>
<a href=#371 id=371 data-nosnippet>371</a><span class="kw">impl </span>Decimal128VectorBuilder {
<a href=#372 id=372 data-nosnippet>372</a> <span class="doccomment">/// Change the precision and scale of the Decimal128VectorBuilder.
<a href=#373 id=373 data-nosnippet>373</a> </span><span class="kw">pub fn </span>with_precision_and_scale(<span class="self">self</span>, precision: u8, scale: i8) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#374 id=374 data-nosnippet>374</a> <span class="kw">let </span>mutable_array = <span class="self">self
<a href=#375 id=375 data-nosnippet>375</a> </span>.mutable_array
<a href=#376 id=376 data-nosnippet>376</a> .with_precision_and_scale(precision, scale)
<a href=#377 id=377 data-nosnippet>377</a> .context(InvalidPrecisionOrScaleSnafu { precision, scale })<span class="question-mark">?</span>;
<a href=#378 id=378 data-nosnippet>378</a> <span class="prelude-val">Ok</span>(<span class="self">Self </span>{
<a href=#379 id=379 data-nosnippet>379</a> precision,
<a href=#380 id=380 data-nosnippet>380</a> scale,
<a href=#381 id=381 data-nosnippet>381</a> mutable_array,
<a href=#382 id=382 data-nosnippet>382</a> })
<a href=#383 id=383 data-nosnippet>383</a> }
<a href=#384 id=384 data-nosnippet>384</a>}
<a href=#385 id=385 data-nosnippet>385</a>
<a href=#386 id=386 data-nosnippet>386</a><span class="macro">vectors::impl_try_from_arrow_array_for_vector!</span>(Decimal128Array, Decimal128Vector);
<a href=#387 id=387 data-nosnippet>387</a>
<a href=#388 id=388 data-nosnippet>388</a><span class="attr">#[cfg(test)]
<a href=#389 id=389 data-nosnippet>389</a></span><span class="kw">pub mod </span>tests {
<a href=#390 id=390 data-nosnippet>390</a> <span class="kw">use </span>arrow_array::Decimal128Array;
<a href=#391 id=391 data-nosnippet>391</a> <span class="kw">use </span>common_decimal::Decimal128;
<a href=#392 id=392 data-nosnippet>392</a>
<a href=#393 id=393 data-nosnippet>393</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#394 id=394 data-nosnippet>394</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::Int8Vector;
<a href=#395 id=395 data-nosnippet>395</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::operations::VectorOp;
<a href=#396 id=396 data-nosnippet>396</a>
<a href=#397 id=397 data-nosnippet>397</a> <span class="attr">#[test]
<a href=#398 id=398 data-nosnippet>398</a> </span><span class="kw">fn </span>test_from_arrow_decimal128_array() {
<a href=#399 id=399 data-nosnippet>399</a> <span class="kw">let </span>decimal_array = Decimal128Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">123</span>), <span class="prelude-val">Some</span>(<span class="number">456</span>)]);
<a href=#400 id=400 data-nosnippet>400</a> <span class="kw">let </span>decimal_vector = Decimal128Vector::from(decimal_array);
<a href=#401 id=401 data-nosnippet>401</a> <span class="kw">let </span>expect = Decimal128Vector::from_values(<span class="macro">vec!</span>[<span class="number">123</span>, <span class="number">456</span>]);
<a href=#402 id=402 data-nosnippet>402</a> <span class="macro">assert_eq!</span>(decimal_vector, expect);
<a href=#403 id=403 data-nosnippet>403</a>
<a href=#404 id=404 data-nosnippet>404</a> <span class="kw">let </span>decimal_array = Decimal128Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">123</span>), <span class="prelude-val">Some</span>(<span class="number">456</span>)])
<a href=#405 id=405 data-nosnippet>405</a> .with_precision_and_scale(<span class="number">10</span>, <span class="number">2</span>)
<a href=#406 id=406 data-nosnippet>406</a> .unwrap();
<a href=#407 id=407 data-nosnippet>407</a> <span class="kw">let </span>decimal_vector = Decimal128Vector::from(decimal_array);
<a href=#408 id=408 data-nosnippet>408</a> <span class="kw">let </span>expect = Decimal128Vector::from_values(<span class="macro">vec!</span>[<span class="number">123</span>, <span class="number">456</span>])
<a href=#409 id=409 data-nosnippet>409</a> .with_precision_and_scale(<span class="number">10</span>, <span class="number">2</span>)
<a href=#410 id=410 data-nosnippet>410</a> .unwrap();
<a href=#411 id=411 data-nosnippet>411</a> <span class="macro">assert_eq!</span>(decimal_vector, expect);
<a href=#412 id=412 data-nosnippet>412</a>
<a href=#413 id=413 data-nosnippet>413</a> <span class="kw">let </span>decimal_array: ArrayRef = Arc::new(
<a href=#414 id=414 data-nosnippet>414</a> Decimal128Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">123</span>), <span class="prelude-val">Some</span>(<span class="number">456</span>)])
<a href=#415 id=415 data-nosnippet>415</a> .with_precision_and_scale(<span class="number">3</span>, <span class="number">2</span>)
<a href=#416 id=416 data-nosnippet>416</a> .unwrap(),
<a href=#417 id=417 data-nosnippet>417</a> );
<a href=#418 id=418 data-nosnippet>418</a> <span class="kw">let </span>decimal_vector = Decimal128Vector::try_from_arrow_array(decimal_array).unwrap();
<a href=#419 id=419 data-nosnippet>419</a> <span class="kw">let </span>expect = Decimal128Vector::from_values(<span class="macro">vec!</span>[<span class="number">123</span>, <span class="number">456</span>])
<a href=#420 id=420 data-nosnippet>420</a> .with_precision_and_scale(<span class="number">3</span>, <span class="number">2</span>)
<a href=#421 id=421 data-nosnippet>421</a> .unwrap();
<a href=#422 id=422 data-nosnippet>422</a> <span class="macro">assert_eq!</span>(decimal_vector, expect);
<a href=#423 id=423 data-nosnippet>423</a> }
<a href=#424 id=424 data-nosnippet>424</a>
<a href=#425 id=425 data-nosnippet>425</a> <span class="attr">#[test]
<a href=#426 id=426 data-nosnippet>426</a> </span><span class="kw">fn </span>test_from_slice() {
<a href=#427 id=427 data-nosnippet>427</a> <span class="kw">let </span>decimal_vector = Decimal128Vector::from_slice([<span class="number">123</span>, <span class="number">456</span>]);
<a href=#428 id=428 data-nosnippet>428</a> <span class="kw">let </span>decimal_vector2 = Decimal128Vector::from_wrapper_slice([
<a href=#429 id=429 data-nosnippet>429</a> Decimal128::new(<span class="number">123</span>, <span class="number">10</span>, <span class="number">2</span>),
<a href=#430 id=430 data-nosnippet>430</a> Decimal128::new(<span class="number">456</span>, <span class="number">10</span>, <span class="number">2</span>),
<a href=#431 id=431 data-nosnippet>431</a> ]);
<a href=#432 id=432 data-nosnippet>432</a> <span class="kw">let </span>expect = Decimal128Vector::from_values(<span class="macro">vec!</span>[<span class="number">123</span>, <span class="number">456</span>]);
<a href=#433 id=433 data-nosnippet>433</a>
<a href=#434 id=434 data-nosnippet>434</a> <span class="macro">assert_eq!</span>(decimal_vector, expect);
<a href=#435 id=435 data-nosnippet>435</a> <span class="macro">assert_eq!</span>(decimal_vector2, expect);
<a href=#436 id=436 data-nosnippet>436</a> }
<a href=#437 id=437 data-nosnippet>437</a>
<a href=#438 id=438 data-nosnippet>438</a> <span class="attr">#[test]
<a href=#439 id=439 data-nosnippet>439</a> </span><span class="kw">fn </span>test_decimal128_vector_slice() {
<a href=#440 id=440 data-nosnippet>440</a> <span class="kw">let </span>data = <span class="macro">vec!</span>[<span class="number">100</span>, <span class="number">200</span>, <span class="number">300</span>];
<a href=#441 id=441 data-nosnippet>441</a> <span class="comment">// create a decimal vector
<a href=#442 id=442 data-nosnippet>442</a> </span><span class="kw">let </span>decimal_vector = Decimal128Vector::from_values(data.clone())
<a href=#443 id=443 data-nosnippet>443</a> .with_precision_and_scale(<span class="number">10</span>, <span class="number">2</span>)
<a href=#444 id=444 data-nosnippet>444</a> .unwrap();
<a href=#445 id=445 data-nosnippet>445</a> <span class="kw">let </span>decimal_vector2 = decimal_vector.slice(<span class="number">1</span>, <span class="number">2</span>);
<a href=#446 id=446 data-nosnippet>446</a> <span class="macro">assert_eq!</span>(decimal_vector2.len(), <span class="number">2</span>);
<a href=#447 id=447 data-nosnippet>447</a> <span class="macro">assert_eq!</span>(
<a href=#448 id=448 data-nosnippet>448</a> decimal_vector2.get(<span class="number">0</span>),
<a href=#449 id=449 data-nosnippet>449</a> Value::Decimal128(Decimal128::new(<span class="number">200</span>, <span class="number">10</span>, <span class="number">2</span>))
<a href=#450 id=450 data-nosnippet>450</a> );
<a href=#451 id=451 data-nosnippet>451</a> <span class="macro">assert_eq!</span>(
<a href=#452 id=452 data-nosnippet>452</a> decimal_vector2.get(<span class="number">1</span>),
<a href=#453 id=453 data-nosnippet>453</a> Value::Decimal128(Decimal128::new(<span class="number">300</span>, <span class="number">10</span>, <span class="number">2</span>))
<a href=#454 id=454 data-nosnippet>454</a> );
<a href=#455 id=455 data-nosnippet>455</a> }
<a href=#456 id=456 data-nosnippet>456</a>
<a href=#457 id=457 data-nosnippet>457</a> <span class="attr">#[test]
<a href=#458 id=458 data-nosnippet>458</a> </span><span class="kw">fn </span>test_decimal128_vector_basic() {
<a href=#459 id=459 data-nosnippet>459</a> <span class="kw">let </span>data = <span class="macro">vec!</span>[<span class="number">100</span>, <span class="number">200</span>, <span class="number">300</span>];
<a href=#460 id=460 data-nosnippet>460</a> <span class="comment">// create a decimal vector
<a href=#461 id=461 data-nosnippet>461</a> </span><span class="kw">let </span>decimal_vector = Decimal128Vector::from_values(data.clone())
<a href=#462 id=462 data-nosnippet>462</a> .with_precision_and_scale(<span class="number">10</span>, <span class="number">2</span>)
<a href=#463 id=463 data-nosnippet>463</a> .unwrap();
<a href=#464 id=464 data-nosnippet>464</a>
<a href=#465 id=465 data-nosnippet>465</a> <span class="comment">// can use value_of_string(idx) get a decimal string
<a href=#466 id=466 data-nosnippet>466</a> </span><span class="macro">assert_eq!</span>(decimal_vector.value_as_string(<span class="number">0</span>), <span class="string">"1.00"</span>);
<a href=#467 id=467 data-nosnippet>467</a>
<a href=#468 id=468 data-nosnippet>468</a> <span class="comment">// iterator for-loop
<a href=#469 id=469 data-nosnippet>469</a> </span><span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..data.len() {
<a href=#470 id=470 data-nosnippet>470</a> <span class="macro">assert_eq!</span>(
<a href=#471 id=471 data-nosnippet>471</a> decimal_vector.get_data(i),
<a href=#472 id=472 data-nosnippet>472</a> <span class="prelude-val">Some</span>(Decimal128::new((i + <span class="number">1</span>) <span class="kw">as </span>i128 * <span class="number">100</span>, <span class="number">10</span>, <span class="number">2</span>))
<a href=#473 id=473 data-nosnippet>473</a> );
<a href=#474 id=474 data-nosnippet>474</a> <span class="macro">assert_eq!</span>(
<a href=#475 id=475 data-nosnippet>475</a> decimal_vector.get(i),
<a href=#476 id=476 data-nosnippet>476</a> Value::Decimal128(Decimal128::new((i + <span class="number">1</span>) <span class="kw">as </span>i128 * <span class="number">100</span>, <span class="number">10</span>, <span class="number">2</span>))
<a href=#477 id=477 data-nosnippet>477</a> );
<a href=#478 id=478 data-nosnippet>478</a> <span class="macro">assert_eq!</span>(
<a href=#479 id=479 data-nosnippet>479</a> decimal_vector.get_ref(i),
<a href=#480 id=480 data-nosnippet>480</a> ValueRef::Decimal128(Decimal128::new((i + <span class="number">1</span>) <span class="kw">as </span>i128 * <span class="number">100</span>, <span class="number">10</span>, <span class="number">2</span>))
<a href=#481 id=481 data-nosnippet>481</a> );
<a href=#482 id=482 data-nosnippet>482</a> }
<a href=#483 id=483 data-nosnippet>483</a>
<a href=#484 id=484 data-nosnippet>484</a> <span class="comment">// directly convert vector with precision = 2 and scale = 1,
<a href=#485 id=485 data-nosnippet>485</a> // then all of value will be null because of precision.
<a href=#486 id=486 data-nosnippet>486</a> </span><span class="kw">let </span>decimal_vector = decimal_vector
<a href=#487 id=487 data-nosnippet>487</a> .with_precision_and_scale_to_null(<span class="number">2</span>, <span class="number">1</span>)
<a href=#488 id=488 data-nosnippet>488</a> .unwrap();
<a href=#489 id=489 data-nosnippet>489</a> <span class="macro">assert_eq!</span>(decimal_vector.len(), <span class="number">3</span>);
<a href=#490 id=490 data-nosnippet>490</a> <span class="macro">assert!</span>(decimal_vector.is_null(<span class="number">0</span>));
<a href=#491 id=491 data-nosnippet>491</a> <span class="macro">assert!</span>(decimal_vector.is_null(<span class="number">1</span>));
<a href=#492 id=492 data-nosnippet>492</a> <span class="macro">assert!</span>(decimal_vector.is_null(<span class="number">2</span>));
<a href=#493 id=493 data-nosnippet>493</a> }
<a href=#494 id=494 data-nosnippet>494</a>
<a href=#495 id=495 data-nosnippet>495</a> <span class="attr">#[test]
<a href=#496 id=496 data-nosnippet>496</a> </span><span class="kw">fn </span>test_decimal128_vector_builder() {
<a href=#497 id=497 data-nosnippet>497</a> <span class="kw">let </span><span class="kw-2">mut </span>decimal_builder = Decimal128VectorBuilder::with_capacity(<span class="number">3</span>)
<a href=#498 id=498 data-nosnippet>498</a> .with_precision_and_scale(<span class="number">10</span>, <span class="number">2</span>)
<a href=#499 id=499 data-nosnippet>499</a> .unwrap();
<a href=#500 id=500 data-nosnippet>500</a> decimal_builder.push(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">100</span>, <span class="number">10</span>, <span class="number">2</span>)));
<a href=#501 id=501 data-nosnippet>501</a> decimal_builder.push(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">200</span>, <span class="number">10</span>, <span class="number">2</span>)));
<a href=#502 id=502 data-nosnippet>502</a> decimal_builder.push(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">300</span>, <span class="number">10</span>, <span class="number">2</span>)));
<a href=#503 id=503 data-nosnippet>503</a> <span class="kw">let </span>decimal_vector = decimal_builder.finish();
<a href=#504 id=504 data-nosnippet>504</a> <span class="macro">assert_eq!</span>(decimal_vector.len(), <span class="number">3</span>);
<a href=#505 id=505 data-nosnippet>505</a> <span class="macro">assert_eq!</span>(decimal_vector.precision(), <span class="number">10</span>);
<a href=#506 id=506 data-nosnippet>506</a> <span class="macro">assert_eq!</span>(decimal_vector.scale(), <span class="number">2</span>);
<a href=#507 id=507 data-nosnippet>507</a> <span class="macro">assert_eq!</span>(
<a href=#508 id=508 data-nosnippet>508</a> decimal_vector.get(<span class="number">0</span>),
<a href=#509 id=509 data-nosnippet>509</a> Value::Decimal128(Decimal128::new(<span class="number">100</span>, <span class="number">10</span>, <span class="number">2</span>))
<a href=#510 id=510 data-nosnippet>510</a> );
<a href=#511 id=511 data-nosnippet>511</a> <span class="macro">assert_eq!</span>(
<a href=#512 id=512 data-nosnippet>512</a> decimal_vector.get(<span class="number">1</span>),
<a href=#513 id=513 data-nosnippet>513</a> Value::Decimal128(Decimal128::new(<span class="number">200</span>, <span class="number">10</span>, <span class="number">2</span>))
<a href=#514 id=514 data-nosnippet>514</a> );
<a href=#515 id=515 data-nosnippet>515</a> <span class="macro">assert_eq!</span>(
<a href=#516 id=516 data-nosnippet>516</a> decimal_vector.get(<span class="number">2</span>),
<a href=#517 id=517 data-nosnippet>517</a> Value::Decimal128(Decimal128::new(<span class="number">300</span>, <span class="number">10</span>, <span class="number">2</span>))
<a href=#518 id=518 data-nosnippet>518</a> );
<a href=#519 id=519 data-nosnippet>519</a>
<a href=#520 id=520 data-nosnippet>520</a> <span class="comment">// push value error
<a href=#521 id=521 data-nosnippet>521</a> </span><span class="kw">let </span><span class="kw-2">mut </span>decimal_builder = Decimal128VectorBuilder::with_capacity(<span class="number">3</span>);
<a href=#522 id=522 data-nosnippet>522</a> decimal_builder.push(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">123</span>, <span class="number">38</span>, <span class="number">10</span>)));
<a href=#523 id=523 data-nosnippet>523</a> decimal_builder.push(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">1234</span>, <span class="number">38</span>, <span class="number">10</span>)));
<a href=#524 id=524 data-nosnippet>524</a> decimal_builder.push(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">12345</span>, <span class="number">38</span>, <span class="number">10</span>)));
<a href=#525 id=525 data-nosnippet>525</a> <span class="kw">let </span>decimal_vector = decimal_builder.finish();
<a href=#526 id=526 data-nosnippet>526</a> <span class="macro">assert_eq!</span>(decimal_vector.precision(), <span class="number">38</span>);
<a href=#527 id=527 data-nosnippet>527</a> <span class="macro">assert_eq!</span>(decimal_vector.scale(), <span class="number">10</span>);
<a href=#528 id=528 data-nosnippet>528</a> <span class="kw">let </span>result = decimal_vector
<a href=#529 id=529 data-nosnippet>529</a> .with_precision_and_scale(<span class="number">3</span>, <span class="number">2</span>)
<a href=#530 id=530 data-nosnippet>530</a> .and_then(|x| x.validate_decimal_precision(<span class="number">3</span>));
<a href=#531 id=531 data-nosnippet>531</a> <span class="macro">assert_eq!</span>(
<a href=#532 id=532 data-nosnippet>532</a> <span class="string">"Value exceeds the precision 3 bound"</span>,
<a href=#533 id=533 data-nosnippet>533</a> result.unwrap_err().to_string()
<a href=#534 id=534 data-nosnippet>534</a> );
<a href=#535 id=535 data-nosnippet>535</a> }
<a href=#536 id=536 data-nosnippet>536</a>
<a href=#537 id=537 data-nosnippet>537</a> <span class="attr">#[test]
<a href=#538 id=538 data-nosnippet>538</a> </span><span class="kw">fn </span>test_cast_to_decimal128() {
<a href=#539 id=539 data-nosnippet>539</a> <span class="kw">let </span>vector = Int8Vector::from_values(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">100</span>]);
<a href=#540 id=540 data-nosnippet>540</a> <span class="kw">let </span>casted_vector = vector.cast(<span class="kw-2">&amp;</span>ConcreteDataType::decimal128_datatype(<span class="number">3</span>, <span class="number">1</span>));
<a href=#541 id=541 data-nosnippet>541</a> <span class="macro">assert!</span>(casted_vector.is_ok());
<a href=#542 id=542 data-nosnippet>542</a> <span class="kw">let </span>vector = casted_vector.unwrap();
<a href=#543 id=543 data-nosnippet>543</a> <span class="kw">let </span>array = vector.as_any().downcast_ref::&lt;Decimal128Vector&gt;().unwrap();
<a href=#544 id=544 data-nosnippet>544</a> <span class="comment">// because 100 is out of Decimal(3, 1) range, so it will be null
<a href=#545 id=545 data-nosnippet>545</a> </span><span class="macro">assert!</span>(array.is_null(<span class="number">4</span>));
<a href=#546 id=546 data-nosnippet>546</a> }
<a href=#547 id=547 data-nosnippet>547</a>
<a href=#548 id=548 data-nosnippet>548</a> <span class="attr">#[test]
<a href=#549 id=549 data-nosnippet>549</a> </span><span class="kw">fn </span>test_decimal28_vector_iter_data() {
<a href=#550 id=550 data-nosnippet>550</a> <span class="kw">let </span>vector = Decimal128Vector::from_values(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])
<a href=#551 id=551 data-nosnippet>551</a> .with_precision_and_scale(<span class="number">3</span>, <span class="number">1</span>)
<a href=#552 id=552 data-nosnippet>552</a> .unwrap();
<a href=#553 id=553 data-nosnippet>553</a> <span class="kw">let </span><span class="kw-2">mut </span>iter = vector.iter_data();
<a href=#554 id=554 data-nosnippet>554</a> <span class="macro">assert_eq!</span>(iter.next(), <span class="prelude-val">Some</span>(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">1</span>, <span class="number">3</span>, <span class="number">1</span>))));
<a href=#555 id=555 data-nosnippet>555</a> <span class="macro">assert_eq!</span>(iter.next(), <span class="prelude-val">Some</span>(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">2</span>, <span class="number">3</span>, <span class="number">1</span>))));
<a href=#556 id=556 data-nosnippet>556</a> <span class="macro">assert_eq!</span>(iter.next(), <span class="prelude-val">Some</span>(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">3</span>, <span class="number">3</span>, <span class="number">1</span>))));
<a href=#557 id=557 data-nosnippet>557</a> <span class="macro">assert_eq!</span>(iter.next(), <span class="prelude-val">Some</span>(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">4</span>, <span class="number">3</span>, <span class="number">1</span>))));
<a href=#558 id=558 data-nosnippet>558</a> <span class="macro">assert_eq!</span>(iter.next(), <span class="prelude-val">None</span>);
<a href=#559 id=559 data-nosnippet>559</a>
<a href=#560 id=560 data-nosnippet>560</a> <span class="kw">let </span>values = vector
<a href=#561 id=561 data-nosnippet>561</a> .iter_data()
<a href=#562 id=562 data-nosnippet>562</a> .filter_map(|v| v.map(|x| x.val() * <span class="number">2</span>))
<a href=#563 id=563 data-nosnippet>563</a> .collect::&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;();
<a href=#564 id=564 data-nosnippet>564</a> <span class="macro">assert_eq!</span>(values, <span class="macro">vec!</span>[<span class="number">2</span>, <span class="number">4</span>, <span class="number">6</span>, <span class="number">8</span>]);
<a href=#565 id=565 data-nosnippet>565</a> }
<a href=#566 id=566 data-nosnippet>566</a>
<a href=#567 id=567 data-nosnippet>567</a> <span class="attr">#[test]
<a href=#568 id=568 data-nosnippet>568</a> </span><span class="kw">fn </span>test_decimal128_vector_builder_finish_cloned() {
<a href=#569 id=569 data-nosnippet>569</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = Decimal128VectorBuilder::with_capacity(<span class="number">1024</span>);
<a href=#570 id=570 data-nosnippet>570</a> builder.push(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">1</span>, <span class="number">3</span>, <span class="number">1</span>)));
<a href=#571 id=571 data-nosnippet>571</a> builder.push(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">1</span>, <span class="number">3</span>, <span class="number">1</span>)));
<a href=#572 id=572 data-nosnippet>572</a> builder.push(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">1</span>, <span class="number">3</span>, <span class="number">1</span>)));
<a href=#573 id=573 data-nosnippet>573</a> builder.push(<span class="prelude-val">Some</span>(Decimal128::new(<span class="number">1</span>, <span class="number">3</span>, <span class="number">1</span>)));
<a href=#574 id=574 data-nosnippet>574</a> <span class="kw">let </span>vector = builder.finish_cloned();
<a href=#575 id=575 data-nosnippet>575</a> <span class="macro">assert_eq!</span>(vector.len(), <span class="number">4</span>);
<a href=#576 id=576 data-nosnippet>576</a> <span class="macro">assert_eq!</span>(builder.len(), <span class="number">4</span>);
<a href=#577 id=577 data-nosnippet>577</a> }
<a href=#578 id=578 data-nosnippet>578</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/dictionary.rs`."><title>dictionary.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>dictionary.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::any::Any;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::fmt;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>std::sync::Arc;
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>arrow::array::{
<a href=#20 id=20 data-nosnippet>20</a> Array, ArrayBuilder, ArrayRef, DictionaryArray, PrimitiveArray, StringDictionaryBuilder,
<a href=#21 id=21 data-nosnippet>21</a>};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>arrow::datatypes::{ArrowDictionaryKeyType, ArrowNativeType, UInt32Type};
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>serde_json::Value <span class="kw">as </span>JsonValue;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>snafu::ResultExt;
<a href=#25 id=25 data-nosnippet>25</a>
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, <span class="prelude-ty">Result</span>};
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::types::DictionaryType;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::value::{Value, ValueRef};
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">use </span><span class="kw">crate</span>::vectors::operations::VectorOp;
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{<span class="self">self</span>, Helper, MutableVector, Validity, Vector, VectorRef};
<a href=#33 id=33 data-nosnippet>33</a>
<a href=#34 id=34 data-nosnippet>34</a><span class="doccomment">/// Builder for `Dictionary&lt;UInt32, Utf8&gt;` vectors.
<a href=#35 id=35 data-nosnippet>35</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>StringDictionaryVectorBuilder {
<a href=#36 id=36 data-nosnippet>36</a> builder: StringDictionaryBuilder&lt;UInt32Type&gt;,
<a href=#37 id=37 data-nosnippet>37</a>}
<a href=#38 id=38 data-nosnippet>38</a>
<a href=#39 id=39 data-nosnippet>39</a><span class="kw">impl </span>StringDictionaryVectorBuilder {
<a href=#40 id=40 data-nosnippet>40</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>with_capacity(capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#41 id=41 data-nosnippet>41</a> <span class="self">Self </span>{
<a href=#42 id=42 data-nosnippet>42</a> builder: StringDictionaryBuilder::with_capacity(capacity, <span class="number">0</span>, <span class="number">0</span>),
<a href=#43 id=43 data-nosnippet>43</a> }
<a href=#44 id=44 data-nosnippet>44</a> }
<a href=#45 id=45 data-nosnippet>45</a>
<a href=#46 id=46 data-nosnippet>46</a> <span class="kw">fn </span>vector(array: DictionaryArray&lt;UInt32Type&gt;) -&gt; VectorRef {
<a href=#47 id=47 data-nosnippet>47</a> Arc::new(DictionaryVector::new(array, ConcreteDataType::string_datatype()).unwrap())
<a href=#48 id=48 data-nosnippet>48</a> }
<a href=#49 id=49 data-nosnippet>49</a>}
<a href=#50 id=50 data-nosnippet>50</a>
<a href=#51 id=51 data-nosnippet>51</a><span class="kw">impl </span>MutableVector <span class="kw">for </span>StringDictionaryVectorBuilder {
<a href=#52 id=52 data-nosnippet>52</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#53 id=53 data-nosnippet>53</a> ConcreteDataType::dictionary_datatype(
<a href=#54 id=54 data-nosnippet>54</a> ConcreteDataType::uint32_datatype(),
<a href=#55 id=55 data-nosnippet>55</a> ConcreteDataType::string_datatype(),
<a href=#56 id=56 data-nosnippet>56</a> )
<a href=#57 id=57 data-nosnippet>57</a> }
<a href=#58 id=58 data-nosnippet>58</a>
<a href=#59 id=59 data-nosnippet>59</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#60 id=60 data-nosnippet>60</a> <span class="self">self</span>.builder.len()
<a href=#61 id=61 data-nosnippet>61</a> }
<a href=#62 id=62 data-nosnippet>62</a>
<a href=#63 id=63 data-nosnippet>63</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#64 id=64 data-nosnippet>64</a> <span class="self">self
<a href=#65 id=65 data-nosnippet>65</a> </span>}
<a href=#66 id=66 data-nosnippet>66</a>
<a href=#67 id=67 data-nosnippet>67</a> <span class="kw">fn </span>as_mut_any(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span><span class="kw">dyn </span>Any {
<a href=#68 id=68 data-nosnippet>68</a> <span class="self">self
<a href=#69 id=69 data-nosnippet>69</a> </span>}
<a href=#70 id=70 data-nosnippet>70</a>
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">fn </span>to_vector(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; VectorRef {
<a href=#72 id=72 data-nosnippet>72</a> <span class="self">Self</span>::vector(<span class="self">self</span>.builder.finish())
<a href=#73 id=73 data-nosnippet>73</a> }
<a href=#74 id=74 data-nosnippet>74</a>
<a href=#75 id=75 data-nosnippet>75</a> <span class="kw">fn </span>to_vector_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; VectorRef {
<a href=#76 id=76 data-nosnippet>76</a> <span class="self">Self</span>::vector(<span class="self">self</span>.builder.finish_cloned())
<a href=#77 id=77 data-nosnippet>77</a> }
<a href=#78 id=78 data-nosnippet>78</a>
<a href=#79 id=79 data-nosnippet>79</a> <span class="kw">fn </span>try_push_value_ref(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#80 id=80 data-nosnippet>80</a> <span class="kw">match </span>value.try_into_string()<span class="question-mark">? </span>{
<a href=#81 id=81 data-nosnippet>81</a> <span class="prelude-val">Some</span>(value) =&gt; {
<a href=#82 id=82 data-nosnippet>82</a> <span class="self">self</span>.builder
<a href=#83 id=83 data-nosnippet>83</a> .append(value)
<a href=#84 id=84 data-nosnippet>84</a> .context(error::ArrowComputeSnafu)<span class="question-mark">?</span>;
<a href=#85 id=85 data-nosnippet>85</a> }
<a href=#86 id=86 data-nosnippet>86</a> <span class="prelude-val">None </span>=&gt; <span class="self">self</span>.builder.append_null(),
<a href=#87 id=87 data-nosnippet>87</a> }
<a href=#88 id=88 data-nosnippet>88</a> <span class="prelude-val">Ok</span>(())
<a href=#89 id=89 data-nosnippet>89</a> }
<a href=#90 id=90 data-nosnippet>90</a>
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">fn </span>push_null(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#92 id=92 data-nosnippet>92</a> <span class="self">self</span>.builder.append_null();
<a href=#93 id=93 data-nosnippet>93</a> }
<a href=#94 id=94 data-nosnippet>94</a>
<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">fn </span>extend_slice_of(<span class="kw-2">&amp;mut </span><span class="self">self</span>, vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector, offset: usize, length: usize) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#96 id=96 data-nosnippet>96</a> <span class="kw">for </span>index <span class="kw">in </span>offset..offset + length {
<a href=#97 id=97 data-nosnippet>97</a> <span class="self">self</span>.try_push_value_ref(<span class="kw-2">&amp;</span>vector.get_ref(index))<span class="question-mark">?</span>;
<a href=#98 id=98 data-nosnippet>98</a> }
<a href=#99 id=99 data-nosnippet>99</a> <span class="prelude-val">Ok</span>(())
<a href=#100 id=100 data-nosnippet>100</a> }
<a href=#101 id=101 data-nosnippet>101</a>}
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a><span class="doccomment">/// Vector of dictionaries, basically backed by Arrow's `DictionaryArray`.
<a href=#104 id=104 data-nosnippet>104</a></span><span class="kw">pub struct </span>DictionaryVector&lt;K: ArrowDictionaryKeyType&gt; {
<a href=#105 id=105 data-nosnippet>105</a> array: DictionaryArray&lt;K&gt;,
<a href=#106 id=106 data-nosnippet>106</a> <span class="doccomment">/// The datatype of the keys in the dictionary.
<a href=#107 id=107 data-nosnippet>107</a> </span>key_type: ConcreteDataType,
<a href=#108 id=108 data-nosnippet>108</a> <span class="doccomment">/// The datatype of the items in the dictionary.
<a href=#109 id=109 data-nosnippet>109</a> </span>item_type: ConcreteDataType,
<a href=#110 id=110 data-nosnippet>110</a> <span class="doccomment">/// The vector of items in the dictionary.
<a href=#111 id=111 data-nosnippet>111</a> </span>item_vector: VectorRef,
<a href=#112 id=112 data-nosnippet>112</a>}
<a href=#113 id=113 data-nosnippet>113</a>
<a href=#114 id=114 data-nosnippet>114</a><span class="kw">impl</span>&lt;K: ArrowDictionaryKeyType&gt; fmt::Debug <span class="kw">for </span>DictionaryVector&lt;K&gt; {
<a href=#115 id=115 data-nosnippet>115</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter) -&gt; fmt::Result {
<a href=#116 id=116 data-nosnippet>116</a> f.debug_struct(<span class="string">"DictionaryVector"</span>)
<a href=#117 id=117 data-nosnippet>117</a> .field(<span class="string">"array"</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.array)
<a href=#118 id=118 data-nosnippet>118</a> .field(<span class="string">"key_type"</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.key_type)
<a href=#119 id=119 data-nosnippet>119</a> .field(<span class="string">"item_type"</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.item_type)
<a href=#120 id=120 data-nosnippet>120</a> .finish()
<a href=#121 id=121 data-nosnippet>121</a> }
<a href=#122 id=122 data-nosnippet>122</a>}
<a href=#123 id=123 data-nosnippet>123</a>
<a href=#124 id=124 data-nosnippet>124</a><span class="kw">impl</span>&lt;K: ArrowDictionaryKeyType&gt; PartialEq <span class="kw">for </span>DictionaryVector&lt;K&gt; {
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>DictionaryVector&lt;K&gt;) -&gt; bool {
<a href=#126 id=126 data-nosnippet>126</a> <span class="self">self</span>.array == other.array
<a href=#127 id=127 data-nosnippet>127</a> &amp;&amp; <span class="self">self</span>.key_type == other.key_type
<a href=#128 id=128 data-nosnippet>128</a> &amp;&amp; <span class="self">self</span>.item_type == other.item_type
<a href=#129 id=129 data-nosnippet>129</a> }
<a href=#130 id=130 data-nosnippet>130</a>}
<a href=#131 id=131 data-nosnippet>131</a>
<a href=#132 id=132 data-nosnippet>132</a><span class="kw">impl</span>&lt;K: ArrowDictionaryKeyType&gt; DictionaryVector&lt;K&gt; {
<a href=#133 id=133 data-nosnippet>133</a> <span class="doccomment">/// Create a new instance of `DictionaryVector` from a dictionary array and item type
<a href=#134 id=134 data-nosnippet>134</a> </span><span class="kw">pub fn </span>new(array: DictionaryArray&lt;K&gt;, item_type: ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#135 id=135 data-nosnippet>135</a> <span class="kw">let </span>key_type = ConcreteDataType::try_from(<span class="kw-2">&amp;</span>K::DATA_TYPE)<span class="question-mark">?</span>;
<a href=#136 id=136 data-nosnippet>136</a> <span class="kw">let </span>item_vector = Helper::try_into_vector(array.values())<span class="question-mark">?</span>;
<a href=#137 id=137 data-nosnippet>137</a>
<a href=#138 id=138 data-nosnippet>138</a> <span class="prelude-val">Ok</span>(<span class="self">Self </span>{
<a href=#139 id=139 data-nosnippet>139</a> array,
<a href=#140 id=140 data-nosnippet>140</a> key_type,
<a href=#141 id=141 data-nosnippet>141</a> item_type,
<a href=#142 id=142 data-nosnippet>142</a> item_vector,
<a href=#143 id=143 data-nosnippet>143</a> })
<a href=#144 id=144 data-nosnippet>144</a> }
<a href=#145 id=145 data-nosnippet>145</a>
<a href=#146 id=146 data-nosnippet>146</a> <span class="doccomment">/// Returns the underlying Arrow dictionary array
<a href=#147 id=147 data-nosnippet>147</a> </span><span class="kw">pub fn </span>array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>DictionaryArray&lt;K&gt; {
<a href=#148 id=148 data-nosnippet>148</a> <span class="kw-2">&amp;</span><span class="self">self</span>.array
<a href=#149 id=149 data-nosnippet>149</a> }
<a href=#150 id=150 data-nosnippet>150</a>
<a href=#151 id=151 data-nosnippet>151</a> <span class="doccomment">/// Returns the keys array of this dictionary
<a href=#152 id=152 data-nosnippet>152</a> </span><span class="kw">pub fn </span>keys(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>arrow_array::PrimitiveArray&lt;K&gt; {
<a href=#153 id=153 data-nosnippet>153</a> <span class="self">self</span>.array.keys()
<a href=#154 id=154 data-nosnippet>154</a> }
<a href=#155 id=155 data-nosnippet>155</a>
<a href=#156 id=156 data-nosnippet>156</a> <span class="doccomment">/// Returns the values array of this dictionary
<a href=#157 id=157 data-nosnippet>157</a> </span><span class="kw">pub fn </span>values(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>ArrayRef {
<a href=#158 id=158 data-nosnippet>158</a> <span class="self">self</span>.array.values()
<a href=#159 id=159 data-nosnippet>159</a> }
<a href=#160 id=160 data-nosnippet>160</a>
<a href=#161 id=161 data-nosnippet>161</a> <span class="kw">pub fn </span>as_arrow(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Array {
<a href=#162 id=162 data-nosnippet>162</a> <span class="kw-2">&amp;</span><span class="self">self</span>.array
<a href=#163 id=163 data-nosnippet>163</a> }
<a href=#164 id=164 data-nosnippet>164</a>}
<a href=#165 id=165 data-nosnippet>165</a>
<a href=#166 id=166 data-nosnippet>166</a><span class="kw">impl</span>&lt;K: ArrowDictionaryKeyType&gt; Vector <span class="kw">for </span>DictionaryVector&lt;K&gt; {
<a href=#167 id=167 data-nosnippet>167</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#168 id=168 data-nosnippet>168</a> ConcreteDataType::Dictionary(DictionaryType::new(
<a href=#169 id=169 data-nosnippet>169</a> <span class="self">self</span>.key_type.clone(),
<a href=#170 id=170 data-nosnippet>170</a> <span class="self">self</span>.item_type.clone(),
<a href=#171 id=171 data-nosnippet>171</a> ))
<a href=#172 id=172 data-nosnippet>172</a> }
<a href=#173 id=173 data-nosnippet>173</a>
<a href=#174 id=174 data-nosnippet>174</a> <span class="kw">fn </span>vector_type_name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#175 id=175 data-nosnippet>175</a> <span class="string">"DictionaryVector"</span>.to_string()
<a href=#176 id=176 data-nosnippet>176</a> }
<a href=#177 id=177 data-nosnippet>177</a>
<a href=#178 id=178 data-nosnippet>178</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#179 id=179 data-nosnippet>179</a> <span class="self">self
<a href=#180 id=180 data-nosnippet>180</a> </span>}
<a href=#181 id=181 data-nosnippet>181</a>
<a href=#182 id=182 data-nosnippet>182</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#183 id=183 data-nosnippet>183</a> <span class="self">self</span>.array.len()
<a href=#184 id=184 data-nosnippet>184</a> }
<a href=#185 id=185 data-nosnippet>185</a>
<a href=#186 id=186 data-nosnippet>186</a> <span class="kw">fn </span>to_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrayRef {
<a href=#187 id=187 data-nosnippet>187</a> Arc::new(<span class="self">self</span>.array.clone())
<a href=#188 id=188 data-nosnippet>188</a> }
<a href=#189 id=189 data-nosnippet>189</a>
<a href=#190 id=190 data-nosnippet>190</a> <span class="kw">fn </span>to_boxed_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Box&lt;<span class="kw">dyn </span>Array&gt; {
<a href=#191 id=191 data-nosnippet>191</a> Box::new(<span class="self">self</span>.array.clone())
<a href=#192 id=192 data-nosnippet>192</a> }
<a href=#193 id=193 data-nosnippet>193</a>
<a href=#194 id=194 data-nosnippet>194</a> <span class="kw">fn </span>validity(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Validity {
<a href=#195 id=195 data-nosnippet>195</a> <span class="self">self</span>.array
<a href=#196 id=196 data-nosnippet>196</a> .logical_nulls()
<a href=#197 id=197 data-nosnippet>197</a> .map(Validity::from_null_buffer)
<a href=#198 id=198 data-nosnippet>198</a> .unwrap_or_else(|| Validity::all_valid(<span class="self">self</span>.len()))
<a href=#199 id=199 data-nosnippet>199</a> }
<a href=#200 id=200 data-nosnippet>200</a>
<a href=#201 id=201 data-nosnippet>201</a> <span class="kw">fn </span>memory_size(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#202 id=202 data-nosnippet>202</a> <span class="self">self</span>.array.get_buffer_memory_size()
<a href=#203 id=203 data-nosnippet>203</a> }
<a href=#204 id=204 data-nosnippet>204</a>
<a href=#205 id=205 data-nosnippet>205</a> <span class="kw">fn </span>null_count(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#206 id=206 data-nosnippet>206</a> <span class="self">self</span>.array.logical_null_count()
<a href=#207 id=207 data-nosnippet>207</a> }
<a href=#208 id=208 data-nosnippet>208</a>
<a href=#209 id=209 data-nosnippet>209</a> <span class="kw">fn </span>is_null(<span class="kw-2">&amp;</span><span class="self">self</span>, row: usize) -&gt; bool {
<a href=#210 id=210 data-nosnippet>210</a> <span class="self">self</span>.array
<a href=#211 id=211 data-nosnippet>211</a> .key(row)
<a href=#212 id=212 data-nosnippet>212</a> .is_none_or(|key| <span class="self">self</span>.item_vector.is_null(key))
<a href=#213 id=213 data-nosnippet>213</a> }
<a href=#214 id=214 data-nosnippet>214</a>
<a href=#215 id=215 data-nosnippet>215</a> <span class="kw">fn </span>slice(<span class="kw-2">&amp;</span><span class="self">self</span>, offset: usize, length: usize) -&gt; VectorRef {
<a href=#216 id=216 data-nosnippet>216</a> Arc::new(<span class="self">Self </span>{
<a href=#217 id=217 data-nosnippet>217</a> array: <span class="self">self</span>.array.slice(offset, length),
<a href=#218 id=218 data-nosnippet>218</a> key_type: <span class="self">self</span>.key_type.clone(),
<a href=#219 id=219 data-nosnippet>219</a> item_type: <span class="self">self</span>.item_type.clone(),
<a href=#220 id=220 data-nosnippet>220</a> item_vector: <span class="self">self</span>.item_vector.clone(),
<a href=#221 id=221 data-nosnippet>221</a> })
<a href=#222 id=222 data-nosnippet>222</a> }
<a href=#223 id=223 data-nosnippet>223</a>
<a href=#224 id=224 data-nosnippet>224</a> <span class="kw">fn </span>get(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; Value {
<a href=#225 id=225 data-nosnippet>225</a> <span class="kw">if </span>!<span class="self">self</span>.array.is_valid(index) {
<a href=#226 id=226 data-nosnippet>226</a> <span class="kw">return </span>Value::Null;
<a href=#227 id=227 data-nosnippet>227</a> }
<a href=#228 id=228 data-nosnippet>228</a>
<a href=#229 id=229 data-nosnippet>229</a> <span class="kw">let </span>key = <span class="self">self</span>.array.keys().value(index);
<a href=#230 id=230 data-nosnippet>230</a> <span class="self">self</span>.item_vector.get(key.as_usize())
<a href=#231 id=231 data-nosnippet>231</a> }
<a href=#232 id=232 data-nosnippet>232</a>
<a href=#233 id=233 data-nosnippet>233</a> <span class="kw">fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; ValueRef&lt;<span class="lifetime">'_</span>&gt; {
<a href=#234 id=234 data-nosnippet>234</a> <span class="kw">if </span>!<span class="self">self</span>.array.is_valid(index) {
<a href=#235 id=235 data-nosnippet>235</a> <span class="kw">return </span>ValueRef::Null;
<a href=#236 id=236 data-nosnippet>236</a> }
<a href=#237 id=237 data-nosnippet>237</a>
<a href=#238 id=238 data-nosnippet>238</a> <span class="kw">let </span>key = <span class="self">self</span>.array.keys().value(index);
<a href=#239 id=239 data-nosnippet>239</a> <span class="self">self</span>.item_vector.get_ref(key.as_usize())
<a href=#240 id=240 data-nosnippet>240</a> }
<a href=#241 id=241 data-nosnippet>241</a>}
<a href=#242 id=242 data-nosnippet>242</a>
<a href=#243 id=243 data-nosnippet>243</a><span class="kw">impl</span>&lt;K: ArrowDictionaryKeyType&gt; Serializable <span class="kw">for </span>DictionaryVector&lt;K&gt; {
<a href=#244 id=244 data-nosnippet>244</a> <span class="kw">fn </span>serialize_to_json(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;JsonValue&gt;&gt; {
<a href=#245 id=245 data-nosnippet>245</a> <span class="comment">// Convert the dictionary array to JSON, where each element is either null or
<a href=#246 id=246 data-nosnippet>246</a> // the value it refers to in the dictionary
<a href=#247 id=247 data-nosnippet>247</a> </span><span class="kw">let </span><span class="kw-2">mut </span>result = Vec::with_capacity(<span class="self">self</span>.len());
<a href=#248 id=248 data-nosnippet>248</a>
<a href=#249 id=249 data-nosnippet>249</a> <span class="kw">let </span>keys = <span class="self">self</span>.array.keys();
<a href=#250 id=250 data-nosnippet>250</a> <span class="kw">let </span>key_values = <span class="kw-2">&amp;</span>keys.values()[..<span class="self">self</span>.len()];
<a href=#251 id=251 data-nosnippet>251</a> <span class="kw">for </span>(i, <span class="kw-2">&amp;</span>key) <span class="kw">in </span>key_values.iter().enumerate() {
<a href=#252 id=252 data-nosnippet>252</a> <span class="kw">if </span><span class="self">self</span>.is_null(i) {
<a href=#253 id=253 data-nosnippet>253</a> result.push(JsonValue::Null);
<a href=#254 id=254 data-nosnippet>254</a> } <span class="kw">else </span>{
<a href=#255 id=255 data-nosnippet>255</a> <span class="kw">let </span>value = <span class="self">self</span>.item_vector.get(key.as_usize());
<a href=#256 id=256 data-nosnippet>256</a> <span class="kw">let </span>json_value = serde_json::to_value(value).context(error::SerializeSnafu)<span class="question-mark">?</span>;
<a href=#257 id=257 data-nosnippet>257</a> result.push(json_value);
<a href=#258 id=258 data-nosnippet>258</a> }
<a href=#259 id=259 data-nosnippet>259</a> }
<a href=#260 id=260 data-nosnippet>260</a>
<a href=#261 id=261 data-nosnippet>261</a> <span class="prelude-val">Ok</span>(result)
<a href=#262 id=262 data-nosnippet>262</a> }
<a href=#263 id=263 data-nosnippet>263</a>}
<a href=#264 id=264 data-nosnippet>264</a>
<a href=#265 id=265 data-nosnippet>265</a><span class="kw">impl</span>&lt;K: ArrowDictionaryKeyType&gt; TryFrom&lt;DictionaryArray&lt;K&gt;&gt; <span class="kw">for </span>DictionaryVector&lt;K&gt; {
<a href=#266 id=266 data-nosnippet>266</a> <span class="kw">type </span>Error = <span class="kw">crate</span>::error::Error;
<a href=#267 id=267 data-nosnippet>267</a>
<a href=#268 id=268 data-nosnippet>268</a> <span class="kw">fn </span>try_from(array: DictionaryArray&lt;K&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#269 id=269 data-nosnippet>269</a> <span class="kw">let </span>key_type = ConcreteDataType::try_from(array.keys().data_type())<span class="question-mark">?</span>;
<a href=#270 id=270 data-nosnippet>270</a> <span class="kw">let </span>item_type = ConcreteDataType::try_from(array.values().data_type())<span class="question-mark">?</span>;
<a href=#271 id=271 data-nosnippet>271</a> <span class="kw">let </span>item_vector = Helper::try_into_vector(array.values())<span class="question-mark">?</span>;
<a href=#272 id=272 data-nosnippet>272</a>
<a href=#273 id=273 data-nosnippet>273</a> <span class="prelude-val">Ok</span>(<span class="self">Self </span>{
<a href=#274 id=274 data-nosnippet>274</a> array,
<a href=#275 id=275 data-nosnippet>275</a> key_type,
<a href=#276 id=276 data-nosnippet>276</a> item_type,
<a href=#277 id=277 data-nosnippet>277</a> item_vector,
<a href=#278 id=278 data-nosnippet>278</a> })
<a href=#279 id=279 data-nosnippet>279</a> }
<a href=#280 id=280 data-nosnippet>280</a>}
<a href=#281 id=281 data-nosnippet>281</a>
<a href=#282 id=282 data-nosnippet>282</a><span class="kw">pub struct </span>DictionaryIter&lt;<span class="lifetime">'a</span>, K: ArrowDictionaryKeyType&gt; {
<a href=#283 id=283 data-nosnippet>283</a> vector: <span class="kw-2">&amp;</span><span class="lifetime">'a </span>DictionaryVector&lt;K&gt;,
<a href=#284 id=284 data-nosnippet>284</a> idx: usize,
<a href=#285 id=285 data-nosnippet>285</a>}
<a href=#286 id=286 data-nosnippet>286</a>
<a href=#287 id=287 data-nosnippet>287</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>, K: ArrowDictionaryKeyType&gt; DictionaryIter&lt;<span class="lifetime">'a</span>, K&gt; {
<a href=#288 id=288 data-nosnippet>288</a> <span class="kw">pub fn </span>new(vector: <span class="kw-2">&amp;</span><span class="lifetime">'a </span>DictionaryVector&lt;K&gt;) -&gt; DictionaryIter&lt;<span class="lifetime">'a</span>, K&gt; {
<a href=#289 id=289 data-nosnippet>289</a> DictionaryIter { vector, idx: <span class="number">0 </span>}
<a href=#290 id=290 data-nosnippet>290</a> }
<a href=#291 id=291 data-nosnippet>291</a>}
<a href=#292 id=292 data-nosnippet>292</a>
<a href=#293 id=293 data-nosnippet>293</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>, K: ArrowDictionaryKeyType&gt; Iterator <span class="kw">for </span>DictionaryIter&lt;<span class="lifetime">'a</span>, K&gt; {
<a href=#294 id=294 data-nosnippet>294</a> <span class="kw">type </span>Item = <span class="prelude-ty">Option</span>&lt;ValueRef&lt;<span class="lifetime">'a</span>&gt;&gt;;
<a href=#295 id=295 data-nosnippet>295</a>
<a href=#296 id=296 data-nosnippet>296</a> <span class="attr">#[inline]
<a href=#297 id=297 data-nosnippet>297</a> </span><span class="kw">fn </span>next(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::Item&gt; {
<a href=#298 id=298 data-nosnippet>298</a> <span class="kw">if </span><span class="self">self</span>.idx &gt;= <span class="self">self</span>.vector.len() {
<a href=#299 id=299 data-nosnippet>299</a> <span class="kw">return </span><span class="prelude-val">None</span>;
<a href=#300 id=300 data-nosnippet>300</a> }
<a href=#301 id=301 data-nosnippet>301</a>
<a href=#302 id=302 data-nosnippet>302</a> <span class="kw">let </span>idx = <span class="self">self</span>.idx;
<a href=#303 id=303 data-nosnippet>303</a> <span class="self">self</span>.idx += <span class="number">1</span>;
<a href=#304 id=304 data-nosnippet>304</a>
<a href=#305 id=305 data-nosnippet>305</a> <span class="kw">if </span><span class="self">self</span>.vector.is_null(idx) {
<a href=#306 id=306 data-nosnippet>306</a> <span class="kw">return </span><span class="prelude-val">Some</span>(<span class="prelude-val">None</span>);
<a href=#307 id=307 data-nosnippet>307</a> }
<a href=#308 id=308 data-nosnippet>308</a>
<a href=#309 id=309 data-nosnippet>309</a> <span class="prelude-val">Some</span>(<span class="prelude-val">Some</span>(<span class="self">self</span>.vector.get_ref(idx)))
<a href=#310 id=310 data-nosnippet>310</a> }
<a href=#311 id=311 data-nosnippet>311</a>
<a href=#312 id=312 data-nosnippet>312</a> <span class="attr">#[inline]
<a href=#313 id=313 data-nosnippet>313</a> </span><span class="kw">fn </span>size_hint(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; (usize, <span class="prelude-ty">Option</span>&lt;usize&gt;) {
<a href=#314 id=314 data-nosnippet>314</a> (
<a href=#315 id=315 data-nosnippet>315</a> <span class="self">self</span>.vector.len() - <span class="self">self</span>.idx,
<a href=#316 id=316 data-nosnippet>316</a> <span class="prelude-val">Some</span>(<span class="self">self</span>.vector.len() - <span class="self">self</span>.idx),
<a href=#317 id=317 data-nosnippet>317</a> )
<a href=#318 id=318 data-nosnippet>318</a> }
<a href=#319 id=319 data-nosnippet>319</a>}
<a href=#320 id=320 data-nosnippet>320</a>
<a href=#321 id=321 data-nosnippet>321</a><span class="kw">impl</span>&lt;K: ArrowDictionaryKeyType&gt; VectorOp <span class="kw">for </span>DictionaryVector&lt;K&gt; {
<a href=#322 id=322 data-nosnippet>322</a> <span class="kw">fn </span>filter(<span class="kw-2">&amp;</span><span class="self">self</span>, filter: <span class="kw-2">&amp;</span>vectors::BooleanVector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#323 id=323 data-nosnippet>323</a> <span class="kw">let </span>key_array: ArrayRef = Arc::new(<span class="self">self</span>.array.keys().clone());
<a href=#324 id=324 data-nosnippet>324</a> <span class="kw">let </span>key_vector = Helper::try_into_vector(<span class="kw-2">&amp;</span>key_array)<span class="question-mark">?</span>;
<a href=#325 id=325 data-nosnippet>325</a> <span class="kw">let </span>filtered_key_vector = key_vector.filter(filter)<span class="question-mark">?</span>;
<a href=#326 id=326 data-nosnippet>326</a> <span class="kw">let </span>filtered_key_array = filtered_key_vector.to_arrow_array();
<a href=#327 id=327 data-nosnippet>327</a> <span class="kw">let </span>filtered_key_array = filtered_key_array
<a href=#328 id=328 data-nosnippet>328</a> .as_any()
<a href=#329 id=329 data-nosnippet>329</a> .downcast_ref::&lt;PrimitiveArray&lt;K&gt;&gt;()
<a href=#330 id=330 data-nosnippet>330</a> .unwrap();
<a href=#331 id=331 data-nosnippet>331</a>
<a href=#332 id=332 data-nosnippet>332</a> <span class="kw">let </span>new_array = DictionaryArray::try_new(filtered_key_array.clone(), <span class="self">self</span>.values().clone())
<a href=#333 id=333 data-nosnippet>333</a> .expect(<span class="string">"Failed to create filtered dictionary array"</span>);
<a href=#334 id=334 data-nosnippet>334</a>
<a href=#335 id=335 data-nosnippet>335</a> <span class="prelude-val">Ok</span>(Arc::new(<span class="self">Self </span>{
<a href=#336 id=336 data-nosnippet>336</a> array: new_array,
<a href=#337 id=337 data-nosnippet>337</a> key_type: <span class="self">self</span>.key_type.clone(),
<a href=#338 id=338 data-nosnippet>338</a> item_type: <span class="self">self</span>.item_type.clone(),
<a href=#339 id=339 data-nosnippet>339</a> item_vector: <span class="self">self</span>.item_vector.clone(),
<a href=#340 id=340 data-nosnippet>340</a> }))
<a href=#341 id=341 data-nosnippet>341</a> }
<a href=#342 id=342 data-nosnippet>342</a>
<a href=#343 id=343 data-nosnippet>343</a> <span class="kw">fn </span>cast(<span class="kw-2">&amp;</span><span class="self">self</span>, to_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#344 id=344 data-nosnippet>344</a> <span class="kw">let </span>new_items = <span class="self">self</span>.item_vector.cast(to_type)<span class="question-mark">?</span>;
<a href=#345 id=345 data-nosnippet>345</a> <span class="kw">let </span>new_array =
<a href=#346 id=346 data-nosnippet>346</a> DictionaryArray::try_new(<span class="self">self</span>.array.keys().clone(), new_items.to_arrow_array())
<a href=#347 id=347 data-nosnippet>347</a> .expect(<span class="string">"Failed to create casted dictionary array"</span>);
<a href=#348 id=348 data-nosnippet>348</a> <span class="prelude-val">Ok</span>(Arc::new(<span class="self">Self </span>{
<a href=#349 id=349 data-nosnippet>349</a> array: new_array,
<a href=#350 id=350 data-nosnippet>350</a> key_type: <span class="self">self</span>.key_type.clone(),
<a href=#351 id=351 data-nosnippet>351</a> item_type: to_type.clone(),
<a href=#352 id=352 data-nosnippet>352</a> item_vector: <span class="self">self</span>.item_vector.clone(),
<a href=#353 id=353 data-nosnippet>353</a> }))
<a href=#354 id=354 data-nosnippet>354</a> }
<a href=#355 id=355 data-nosnippet>355</a>
<a href=#356 id=356 data-nosnippet>356</a> <span class="kw">fn </span>take(<span class="kw-2">&amp;</span><span class="self">self</span>, indices: <span class="kw-2">&amp;</span>vectors::UInt32Vector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#357 id=357 data-nosnippet>357</a> <span class="kw">let </span>key_array: ArrayRef = Arc::new(<span class="self">self</span>.array.keys().clone());
<a href=#358 id=358 data-nosnippet>358</a> <span class="kw">let </span>key_vector = Helper::try_into_vector(<span class="kw-2">&amp;</span>key_array)<span class="question-mark">?</span>;
<a href=#359 id=359 data-nosnippet>359</a> <span class="kw">let </span>new_key_vector = key_vector.take(indices)<span class="question-mark">?</span>;
<a href=#360 id=360 data-nosnippet>360</a> <span class="kw">let </span>new_key_array = new_key_vector.to_arrow_array();
<a href=#361 id=361 data-nosnippet>361</a> <span class="kw">let </span>new_key_array = new_key_array
<a href=#362 id=362 data-nosnippet>362</a> .as_any()
<a href=#363 id=363 data-nosnippet>363</a> .downcast_ref::&lt;PrimitiveArray&lt;K&gt;&gt;()
<a href=#364 id=364 data-nosnippet>364</a> .unwrap();
<a href=#365 id=365 data-nosnippet>365</a>
<a href=#366 id=366 data-nosnippet>366</a> <span class="kw">let </span>new_array = DictionaryArray::try_new(new_key_array.clone(), <span class="self">self</span>.values().clone())
<a href=#367 id=367 data-nosnippet>367</a> .expect(<span class="string">"Failed to create filtered dictionary array"</span>);
<a href=#368 id=368 data-nosnippet>368</a>
<a href=#369 id=369 data-nosnippet>369</a> <span class="prelude-val">Ok</span>(Arc::new(<span class="self">Self </span>{
<a href=#370 id=370 data-nosnippet>370</a> array: new_array,
<a href=#371 id=371 data-nosnippet>371</a> key_type: <span class="self">self</span>.key_type.clone(),
<a href=#372 id=372 data-nosnippet>372</a> item_type: <span class="self">self</span>.item_type.clone(),
<a href=#373 id=373 data-nosnippet>373</a> item_vector: <span class="self">self</span>.item_vector.clone(),
<a href=#374 id=374 data-nosnippet>374</a> }))
<a href=#375 id=375 data-nosnippet>375</a> }
<a href=#376 id=376 data-nosnippet>376</a>}
<a href=#377 id=377 data-nosnippet>377</a>
<a href=#378 id=378 data-nosnippet>378</a><span class="attr">#[cfg(test)]
<a href=#379 id=379 data-nosnippet>379</a></span><span class="kw">mod </span>tests {
<a href=#380 id=380 data-nosnippet>380</a> <span class="kw">use </span>std::sync::Arc;
<a href=#381 id=381 data-nosnippet>381</a>
<a href=#382 id=382 data-nosnippet>382</a> <span class="kw">use </span>arrow::array::{Int64Array, StringArray, UInt32Array};
<a href=#383 id=383 data-nosnippet>383</a> <span class="kw">use </span>arrow::datatypes::{Int64Type, UInt32Type};
<a href=#384 id=384 data-nosnippet>384</a>
<a href=#385 id=385 data-nosnippet>385</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#386 id=386 data-nosnippet>386</a>
<a href=#387 id=387 data-nosnippet>387</a> <span class="comment">// Helper function to create a test dictionary vector with string values
<a href=#388 id=388 data-nosnippet>388</a> </span><span class="kw">fn </span>create_test_dictionary() -&gt; DictionaryVector&lt;Int64Type&gt; {
<a href=#389 id=389 data-nosnippet>389</a> <span class="comment">// Dictionary values: ["a", "b", "c", "d"]
<a href=#390 id=390 data-nosnippet>390</a> // Keys: [0, 1, 2, null, 1, 3]
<a href=#391 id=391 data-nosnippet>391</a> // Resulting in: ["a", "b", "c", null, "b", "d"]
<a href=#392 id=392 data-nosnippet>392</a> </span><span class="kw">let </span>values = StringArray::from(<span class="macro">vec!</span>[<span class="string">"a"</span>, <span class="string">"b"</span>, <span class="string">"c"</span>, <span class="string">"d"</span>]);
<a href=#393 id=393 data-nosnippet>393</a> <span class="kw">let </span>keys = Int64Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">3</span>)]);
<a href=#394 id=394 data-nosnippet>394</a> <span class="kw">let </span>dict_array = DictionaryArray::new(keys, Arc::new(values));
<a href=#395 id=395 data-nosnippet>395</a> DictionaryVector::&lt;Int64Type&gt;::try_from(dict_array).unwrap()
<a href=#396 id=396 data-nosnippet>396</a> }
<a href=#397 id=397 data-nosnippet>397</a>
<a href=#398 id=398 data-nosnippet>398</a> <span class="attr">#[test]
<a href=#399 id=399 data-nosnippet>399</a> </span><span class="kw">fn </span>test_dictionary_vector_basics() {
<a href=#400 id=400 data-nosnippet>400</a> <span class="kw">let </span>dict_vec = create_test_dictionary();
<a href=#401 id=401 data-nosnippet>401</a>
<a href=#402 id=402 data-nosnippet>402</a> <span class="comment">// Test length and null count
<a href=#403 id=403 data-nosnippet>403</a> </span><span class="macro">assert_eq!</span>(dict_vec.len(), <span class="number">6</span>);
<a href=#404 id=404 data-nosnippet>404</a> <span class="macro">assert_eq!</span>(dict_vec.null_count(), <span class="number">1</span>);
<a href=#405 id=405 data-nosnippet>405</a>
<a href=#406 id=406 data-nosnippet>406</a> <span class="comment">// Test data type
<a href=#407 id=407 data-nosnippet>407</a> </span><span class="kw">let </span>data_type = dict_vec.data_type();
<a href=#408 id=408 data-nosnippet>408</a> <span class="kw">if let </span>ConcreteDataType::Dictionary(dict_type) = data_type {
<a href=#409 id=409 data-nosnippet>409</a> <span class="macro">assert_eq!</span>(<span class="kw-2">*</span>dict_type.value_type(), ConcreteDataType::string_datatype());
<a href=#410 id=410 data-nosnippet>410</a> } <span class="kw">else </span>{
<a href=#411 id=411 data-nosnippet>411</a> <span class="macro">panic!</span>(<span class="string">"Expected Dictionary data type"</span>);
<a href=#412 id=412 data-nosnippet>412</a> }
<a href=#413 id=413 data-nosnippet>413</a>
<a href=#414 id=414 data-nosnippet>414</a> <span class="comment">// Test is_null
<a href=#415 id=415 data-nosnippet>415</a> </span><span class="macro">assert!</span>(!dict_vec.is_null(<span class="number">0</span>));
<a href=#416 id=416 data-nosnippet>416</a> <span class="macro">assert!</span>(dict_vec.is_null(<span class="number">3</span>));
<a href=#417 id=417 data-nosnippet>417</a>
<a href=#418 id=418 data-nosnippet>418</a> <span class="comment">// Test get values
<a href=#419 id=419 data-nosnippet>419</a> </span><span class="macro">assert_eq!</span>(dict_vec.get(<span class="number">0</span>), Value::String(<span class="string">"a"</span>.to_string().into()));
<a href=#420 id=420 data-nosnippet>420</a> <span class="macro">assert_eq!</span>(dict_vec.get(<span class="number">1</span>), Value::String(<span class="string">"b"</span>.to_string().into()));
<a href=#421 id=421 data-nosnippet>421</a> <span class="macro">assert_eq!</span>(dict_vec.get(<span class="number">3</span>), Value::Null);
<a href=#422 id=422 data-nosnippet>422</a> <span class="macro">assert_eq!</span>(dict_vec.get(<span class="number">4</span>), Value::String(<span class="string">"b"</span>.to_string().into()));
<a href=#423 id=423 data-nosnippet>423</a> }
<a href=#424 id=424 data-nosnippet>424</a>
<a href=#425 id=425 data-nosnippet>425</a> <span class="attr">#[test]
<a href=#426 id=426 data-nosnippet>426</a> </span><span class="kw">fn </span>test_dictionary_vector_logical_nulls() {
<a href=#427 id=427 data-nosnippet>427</a> <span class="kw">let </span>values = StringArray::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="string">"a"</span>), <span class="prelude-val">None</span>]);
<a href=#428 id=428 data-nosnippet>428</a> <span class="kw">let </span>keys = Int64Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">1</span>)]);
<a href=#429 id=429 data-nosnippet>429</a> <span class="kw">let </span>dict_array = DictionaryArray::new(keys, Arc::new(values));
<a href=#430 id=430 data-nosnippet>430</a> <span class="kw">let </span>dict_vec = DictionaryVector::&lt;Int64Type&gt;::try_from(dict_array).unwrap();
<a href=#431 id=431 data-nosnippet>431</a>
<a href=#432 id=432 data-nosnippet>432</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, dict_vec.null_count());
<a href=#433 id=433 data-nosnippet>433</a> <span class="macro">assert!</span>(!dict_vec.is_null(<span class="number">0</span>));
<a href=#434 id=434 data-nosnippet>434</a> <span class="macro">assert!</span>(dict_vec.is_null(<span class="number">1</span>));
<a href=#435 id=435 data-nosnippet>435</a> <span class="macro">assert!</span>(dict_vec.is_null(<span class="number">2</span>));
<a href=#436 id=436 data-nosnippet>436</a> <span class="macro">assert!</span>(dict_vec.is_null(<span class="number">3</span>));
<a href=#437 id=437 data-nosnippet>437</a>
<a href=#438 id=438 data-nosnippet>438</a> <span class="kw">let </span>validity = dict_vec.validity();
<a href=#439 id=439 data-nosnippet>439</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, validity.null_count());
<a href=#440 id=440 data-nosnippet>440</a> <span class="macro">assert!</span>(validity.is_set(<span class="number">0</span>));
<a href=#441 id=441 data-nosnippet>441</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">1</span>));
<a href=#442 id=442 data-nosnippet>442</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">2</span>));
<a href=#443 id=443 data-nosnippet>443</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">3</span>));
<a href=#444 id=444 data-nosnippet>444</a> }
<a href=#445 id=445 data-nosnippet>445</a>
<a href=#446 id=446 data-nosnippet>446</a> <span class="attr">#[test]
<a href=#447 id=447 data-nosnippet>447</a> </span><span class="kw">fn </span>test_slice() {
<a href=#448 id=448 data-nosnippet>448</a> <span class="kw">let </span>dict_vec = create_test_dictionary();
<a href=#449 id=449 data-nosnippet>449</a> <span class="kw">let </span>sliced = dict_vec.slice(<span class="number">1</span>, <span class="number">3</span>);
<a href=#450 id=450 data-nosnippet>450</a>
<a href=#451 id=451 data-nosnippet>451</a> <span class="macro">assert_eq!</span>(sliced.len(), <span class="number">3</span>);
<a href=#452 id=452 data-nosnippet>452</a> <span class="macro">assert_eq!</span>(sliced.get(<span class="number">0</span>), Value::String(<span class="string">"b"</span>.to_string().into()));
<a href=#453 id=453 data-nosnippet>453</a> <span class="macro">assert_eq!</span>(sliced.get(<span class="number">1</span>), Value::String(<span class="string">"c"</span>.to_string().into()));
<a href=#454 id=454 data-nosnippet>454</a> <span class="macro">assert_eq!</span>(sliced.get(<span class="number">2</span>), Value::Null);
<a href=#455 id=455 data-nosnippet>455</a> }
<a href=#456 id=456 data-nosnippet>456</a>
<a href=#457 id=457 data-nosnippet>457</a> <span class="attr">#[test]
<a href=#458 id=458 data-nosnippet>458</a> </span><span class="kw">fn </span>test_filter() {
<a href=#459 id=459 data-nosnippet>459</a> <span class="kw">let </span>dict_vec = create_test_dictionary();
<a href=#460 id=460 data-nosnippet>460</a>
<a href=#461 id=461 data-nosnippet>461</a> <span class="comment">// Keep only indices 0, 2, 4
<a href=#462 id=462 data-nosnippet>462</a> </span><span class="kw">let </span>filter_values = <span class="macro">vec!</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>];
<a href=#463 id=463 data-nosnippet>463</a> <span class="kw">let </span>filter = vectors::BooleanVector::from(filter_values);
<a href=#464 id=464 data-nosnippet>464</a>
<a href=#465 id=465 data-nosnippet>465</a> <span class="kw">let </span>filtered = dict_vec.filter(<span class="kw-2">&amp;</span>filter).unwrap();
<a href=#466 id=466 data-nosnippet>466</a> <span class="macro">assert_eq!</span>(filtered.len(), <span class="number">3</span>);
<a href=#467 id=467 data-nosnippet>467</a>
<a href=#468 id=468 data-nosnippet>468</a> <span class="comment">// Check the values
<a href=#469 id=469 data-nosnippet>469</a> </span><span class="macro">assert_eq!</span>(filtered.get(<span class="number">0</span>), Value::String(<span class="string">"a"</span>.to_string().into()));
<a href=#470 id=470 data-nosnippet>470</a> <span class="macro">assert_eq!</span>(filtered.get(<span class="number">1</span>), Value::String(<span class="string">"c"</span>.to_string().into()));
<a href=#471 id=471 data-nosnippet>471</a> <span class="macro">assert_eq!</span>(filtered.get(<span class="number">2</span>), Value::String(<span class="string">"b"</span>.to_string().into()));
<a href=#472 id=472 data-nosnippet>472</a> }
<a href=#473 id=473 data-nosnippet>473</a>
<a href=#474 id=474 data-nosnippet>474</a> <span class="attr">#[test]
<a href=#475 id=475 data-nosnippet>475</a> </span><span class="kw">fn </span>test_cast() {
<a href=#476 id=476 data-nosnippet>476</a> <span class="kw">let </span>dict_vec = create_test_dictionary();
<a href=#477 id=477 data-nosnippet>477</a>
<a href=#478 id=478 data-nosnippet>478</a> <span class="comment">// Cast to the same type should return an equivalent vector
<a href=#479 id=479 data-nosnippet>479</a> </span><span class="kw">let </span>casted = dict_vec.cast(<span class="kw-2">&amp;</span>ConcreteDataType::string_datatype()).unwrap();
<a href=#480 id=480 data-nosnippet>480</a>
<a href=#481 id=481 data-nosnippet>481</a> <span class="comment">// The returned vector should have string values
<a href=#482 id=482 data-nosnippet>482</a> </span><span class="macro">assert_eq!</span>(
<a href=#483 id=483 data-nosnippet>483</a> casted.data_type(),
<a href=#484 id=484 data-nosnippet>484</a> ConcreteDataType::Dictionary(DictionaryType::new(
<a href=#485 id=485 data-nosnippet>485</a> ConcreteDataType::int64_datatype(),
<a href=#486 id=486 data-nosnippet>486</a> ConcreteDataType::string_datatype(),
<a href=#487 id=487 data-nosnippet>487</a> ))
<a href=#488 id=488 data-nosnippet>488</a> );
<a href=#489 id=489 data-nosnippet>489</a> <span class="macro">assert_eq!</span>(casted.len(), dict_vec.len());
<a href=#490 id=490 data-nosnippet>490</a>
<a href=#491 id=491 data-nosnippet>491</a> <span class="comment">// Values should match the original dictionary lookups
<a href=#492 id=492 data-nosnippet>492</a> </span><span class="macro">assert_eq!</span>(casted.get(<span class="number">0</span>), Value::String(<span class="string">"a"</span>.to_string().into()));
<a href=#493 id=493 data-nosnippet>493</a> <span class="macro">assert_eq!</span>(casted.get(<span class="number">1</span>), Value::String(<span class="string">"b"</span>.to_string().into()));
<a href=#494 id=494 data-nosnippet>494</a> <span class="macro">assert_eq!</span>(casted.get(<span class="number">2</span>), Value::String(<span class="string">"c"</span>.to_string().into()));
<a href=#495 id=495 data-nosnippet>495</a> <span class="macro">assert_eq!</span>(casted.get(<span class="number">3</span>), Value::Null);
<a href=#496 id=496 data-nosnippet>496</a> <span class="macro">assert_eq!</span>(casted.get(<span class="number">4</span>), Value::String(<span class="string">"b"</span>.to_string().into()));
<a href=#497 id=497 data-nosnippet>497</a> <span class="macro">assert_eq!</span>(casted.get(<span class="number">5</span>), Value::String(<span class="string">"d"</span>.to_string().into()));
<a href=#498 id=498 data-nosnippet>498</a> }
<a href=#499 id=499 data-nosnippet>499</a>
<a href=#500 id=500 data-nosnippet>500</a> <span class="attr">#[test]
<a href=#501 id=501 data-nosnippet>501</a> </span><span class="kw">fn </span>test_take() {
<a href=#502 id=502 data-nosnippet>502</a> <span class="kw">let </span>dict_vec = create_test_dictionary();
<a href=#503 id=503 data-nosnippet>503</a>
<a href=#504 id=504 data-nosnippet>504</a> <span class="comment">// Take indices 2, 0, 4
<a href=#505 id=505 data-nosnippet>505</a> </span><span class="kw">let </span>indices_vec = <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">2u32</span>), <span class="prelude-val">Some</span>(<span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="number">4</span>)];
<a href=#506 id=506 data-nosnippet>506</a> <span class="kw">let </span>indices = vectors::UInt32Vector::from(indices_vec);
<a href=#507 id=507 data-nosnippet>507</a>
<a href=#508 id=508 data-nosnippet>508</a> <span class="kw">let </span>taken = dict_vec.take(<span class="kw-2">&amp;</span>indices).unwrap();
<a href=#509 id=509 data-nosnippet>509</a> <span class="macro">assert_eq!</span>(taken.len(), <span class="number">3</span>);
<a href=#510 id=510 data-nosnippet>510</a>
<a href=#511 id=511 data-nosnippet>511</a> <span class="comment">// Check the values
<a href=#512 id=512 data-nosnippet>512</a> </span><span class="macro">assert_eq!</span>(taken.get(<span class="number">0</span>), Value::String(<span class="string">"c"</span>.to_string().into()));
<a href=#513 id=513 data-nosnippet>513</a> <span class="macro">assert_eq!</span>(taken.get(<span class="number">1</span>), Value::String(<span class="string">"a"</span>.to_string().into()));
<a href=#514 id=514 data-nosnippet>514</a> <span class="macro">assert_eq!</span>(taken.get(<span class="number">2</span>), Value::String(<span class="string">"b"</span>.to_string().into()));
<a href=#515 id=515 data-nosnippet>515</a> }
<a href=#516 id=516 data-nosnippet>516</a>
<a href=#517 id=517 data-nosnippet>517</a> <span class="attr">#[test]
<a href=#518 id=518 data-nosnippet>518</a> </span><span class="kw">fn </span>test_other_type() {
<a href=#519 id=519 data-nosnippet>519</a> <span class="kw">let </span>values = StringArray::from(<span class="macro">vec!</span>[<span class="string">"a"</span>, <span class="string">"b"</span>, <span class="string">"c"</span>, <span class="string">"d"</span>]);
<a href=#520 id=520 data-nosnippet>520</a> <span class="kw">let </span>keys = UInt32Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">3</span>)]);
<a href=#521 id=521 data-nosnippet>521</a> <span class="kw">let </span>dict_array = DictionaryArray::new(keys, Arc::new(values));
<a href=#522 id=522 data-nosnippet>522</a> <span class="kw">let </span>dict_vec = DictionaryVector::&lt;UInt32Type&gt;::try_from(dict_array).unwrap();
<a href=#523 id=523 data-nosnippet>523</a> <span class="macro">assert_eq!</span>(
<a href=#524 id=524 data-nosnippet>524</a> ConcreteDataType::dictionary_datatype(
<a href=#525 id=525 data-nosnippet>525</a> ConcreteDataType::uint32_datatype(),
<a href=#526 id=526 data-nosnippet>526</a> ConcreteDataType::string_datatype()
<a href=#527 id=527 data-nosnippet>527</a> ),
<a href=#528 id=528 data-nosnippet>528</a> dict_vec.data_type()
<a href=#529 id=529 data-nosnippet>529</a> );
<a href=#530 id=530 data-nosnippet>530</a> }
<a href=#531 id=531 data-nosnippet>531</a>
<a href=#532 id=532 data-nosnippet>532</a> <span class="attr">#[test]
<a href=#533 id=533 data-nosnippet>533</a> </span><span class="kw">fn </span>test_string_dictionary_vector_builder() {
<a href=#534 id=534 data-nosnippet>534</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = StringDictionaryVectorBuilder::with_capacity(<span class="number">4</span>);
<a href=#535 id=535 data-nosnippet>535</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::String(<span class="string">"a"</span>));
<a href=#536 id=536 data-nosnippet>536</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::String(<span class="string">"b"</span>));
<a href=#537 id=537 data-nosnippet>537</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::String(<span class="string">"a"</span>));
<a href=#538 id=538 data-nosnippet>538</a> builder.push_null();
<a href=#539 id=539 data-nosnippet>539</a>
<a href=#540 id=540 data-nosnippet>540</a> <span class="kw">let </span>vector = builder.to_vector();
<a href=#541 id=541 data-nosnippet>541</a> <span class="macro">assert_eq!</span>(vector.data_type(), builder.data_type());
<a href=#542 id=542 data-nosnippet>542</a> <span class="macro">assert_eq!</span>(vector.get(<span class="number">0</span>), Value::String(<span class="string">"a"</span>.to_string().into()));
<a href=#543 id=543 data-nosnippet>543</a> <span class="macro">assert_eq!</span>(vector.get(<span class="number">1</span>), Value::String(<span class="string">"b"</span>.to_string().into()));
<a href=#544 id=544 data-nosnippet>544</a> <span class="macro">assert_eq!</span>(vector.get(<span class="number">2</span>), Value::String(<span class="string">"a"</span>.to_string().into()));
<a href=#545 id=545 data-nosnippet>545</a> <span class="macro">assert_eq!</span>(vector.get(<span class="number">3</span>), Value::Null);
<a href=#546 id=546 data-nosnippet>546</a>
<a href=#547 id=547 data-nosnippet>547</a> <span class="kw">let </span>array = vector
<a href=#548 id=548 data-nosnippet>548</a> .to_arrow_array()
<a href=#549 id=549 data-nosnippet>549</a> .as_any()
<a href=#550 id=550 data-nosnippet>550</a> .downcast_ref::&lt;DictionaryArray&lt;UInt32Type&gt;&gt;()
<a href=#551 id=551 data-nosnippet>551</a> .unwrap()
<a href=#552 id=552 data-nosnippet>552</a> .clone();
<a href=#553 id=553 data-nosnippet>553</a> <span class="macro">assert_eq!</span>(array.values().len(), <span class="number">2</span>);
<a href=#554 id=554 data-nosnippet>554</a> }
<a href=#555 id=555 data-nosnippet>555</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/duration.rs`."><title>duration.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>duration.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span><span class="kw">crate</span>::types::{
<a href=#16 id=16 data-nosnippet>16</a> DurationMicrosecondType, DurationMillisecondType, DurationNanosecondType, DurationSecondType,
<a href=#17 id=17 data-nosnippet>17</a>};
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{PrimitiveVector, PrimitiveVectorBuilder};
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">pub type </span>DurationSecondVector = PrimitiveVector&lt;DurationSecondType&gt;;
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">pub type </span>DurationSecondVectorBuilder = PrimitiveVectorBuilder&lt;DurationSecondType&gt;;
<a href=#22 id=22 data-nosnippet>22</a>
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">pub type </span>DurationMillisecondVector = PrimitiveVector&lt;DurationMillisecondType&gt;;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">pub type </span>DurationMillisecondVectorBuilder = PrimitiveVectorBuilder&lt;DurationMillisecondType&gt;;
<a href=#25 id=25 data-nosnippet>25</a>
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">pub type </span>DurationMicrosecondVector = PrimitiveVector&lt;DurationMicrosecondType&gt;;
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">pub type </span>DurationMicrosecondVectorBuilder = PrimitiveVectorBuilder&lt;DurationMicrosecondType&gt;;
<a href=#28 id=28 data-nosnippet>28</a>
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">pub type </span>DurationNanosecondVector = PrimitiveVector&lt;DurationNanosecondType&gt;;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">pub type </span>DurationNanosecondVectorBuilder = PrimitiveVectorBuilder&lt;DurationNanosecondType&gt;;
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/eq.rs`."><title>eq.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>eq.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::sync::Arc;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>common_time::interval::IntervalUnit;
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span><span class="kw">crate</span>::data_type::DataType;
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span><span class="kw">crate</span>::types::{DurationType, TimeType, TimestampType};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::vectors::struct_vector::StructVector;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#23 id=23 data-nosnippet>23</a> BinaryVector, BooleanVector, DateVector, Decimal128Vector, DurationMicrosecondVector,
<a href=#24 id=24 data-nosnippet>24</a> DurationMillisecondVector, DurationNanosecondVector, DurationSecondVector,
<a href=#25 id=25 data-nosnippet>25</a> IntervalDayTimeVector, IntervalMonthDayNanoVector, IntervalYearMonthVector, ListVector,
<a href=#26 id=26 data-nosnippet>26</a> PrimitiveVector, StringVector, TimeMicrosecondVector, TimeMillisecondVector,
<a href=#27 id=27 data-nosnippet>27</a> TimeNanosecondVector, TimeSecondVector, TimestampMicrosecondVector, TimestampMillisecondVector,
<a href=#28 id=28 data-nosnippet>28</a> TimestampNanosecondVector, TimestampSecondVector, Vector,
<a href=#29 id=29 data-nosnippet>29</a>};
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::with_match_primitive_type_id;
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">impl </span>Eq <span class="kw">for dyn </span>Vector + <span class="lifetime">'_ </span>{}
<a href=#33 id=33 data-nosnippet>33</a>
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">impl </span>PartialEq <span class="kw">for dyn </span>Vector + <span class="lifetime">'_ </span>{
<a href=#35 id=35 data-nosnippet>35</a> <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector) -&gt; bool {
<a href=#36 id=36 data-nosnippet>36</a> equal(<span class="self">self</span>, other)
<a href=#37 id=37 data-nosnippet>37</a> }
<a href=#38 id=38 data-nosnippet>38</a>}
<a href=#39 id=39 data-nosnippet>39</a>
<a href=#40 id=40 data-nosnippet>40</a><span class="kw">impl </span>PartialEq&lt;<span class="kw">dyn </span>Vector&gt; <span class="kw">for </span>Arc&lt;<span class="kw">dyn </span>Vector + <span class="lifetime">'_</span>&gt; {
<a href=#41 id=41 data-nosnippet>41</a> <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector) -&gt; bool {
<a href=#42 id=42 data-nosnippet>42</a> equal(<span class="kw-2">&amp;**</span><span class="self">self</span>, other)
<a href=#43 id=43 data-nosnippet>43</a> }
<a href=#44 id=44 data-nosnippet>44</a>}
<a href=#45 id=45 data-nosnippet>45</a>
<a href=#46 id=46 data-nosnippet>46</a><span class="macro">macro_rules!</span> is_vector_eq {
<a href=#47 id=47 data-nosnippet>47</a> (<span class="macro-nonterminal">$VectorType</span>: ident, <span class="macro-nonterminal">$lhs</span>: ident, <span class="macro-nonterminal">$rhs</span>: ident) =&gt; {{
<a href=#48 id=48 data-nosnippet>48</a> <span class="kw">let </span>lhs = <span class="macro-nonterminal">$lhs</span>.as_any().downcast_ref::&lt;<span class="macro-nonterminal">$VectorType</span>&gt;().unwrap();
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">let </span>rhs = <span class="macro-nonterminal">$rhs</span>.as_any().downcast_ref::&lt;<span class="macro-nonterminal">$VectorType</span>&gt;().unwrap();
<a href=#50 id=50 data-nosnippet>50</a>
<a href=#51 id=51 data-nosnippet>51</a> lhs == rhs
<a href=#52 id=52 data-nosnippet>52</a> }};
<a href=#53 id=53 data-nosnippet>53</a>}
<a href=#54 id=54 data-nosnippet>54</a>
<a href=#55 id=55 data-nosnippet>55</a><span class="kw">fn </span>equal(lhs: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector, rhs: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector) -&gt; bool {
<a href=#56 id=56 data-nosnippet>56</a> <span class="kw">if </span>lhs.data_type() != rhs.data_type() || lhs.len() != rhs.len() {
<a href=#57 id=57 data-nosnippet>57</a> <span class="kw">return </span><span class="bool-val">false</span>;
<a href=#58 id=58 data-nosnippet>58</a> }
<a href=#59 id=59 data-nosnippet>59</a>
<a href=#60 id=60 data-nosnippet>60</a> <span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType::<span class="kw-2">*</span>;
<a href=#61 id=61 data-nosnippet>61</a>
<a href=#62 id=62 data-nosnippet>62</a> <span class="kw">let </span>lhs_type = lhs.data_type();
<a href=#63 id=63 data-nosnippet>63</a> <span class="kw">match </span>lhs.data_type() {
<a href=#64 id=64 data-nosnippet>64</a> Null(<span class="kw">_</span>) =&gt; <span class="bool-val">true</span>,
<a href=#65 id=65 data-nosnippet>65</a> Boolean(<span class="kw">_</span>) =&gt; <span class="macro">is_vector_eq!</span>(BooleanVector, lhs, rhs),
<a href=#66 id=66 data-nosnippet>66</a> Binary(<span class="kw">_</span>) | Json(<span class="kw">_</span>) | Vector(<span class="kw">_</span>) =&gt; <span class="macro">is_vector_eq!</span>(BinaryVector, lhs, rhs),
<a href=#67 id=67 data-nosnippet>67</a> String(<span class="kw">_</span>) =&gt; <span class="macro">is_vector_eq!</span>(StringVector, lhs, rhs),
<a href=#68 id=68 data-nosnippet>68</a> Date(<span class="kw">_</span>) =&gt; <span class="macro">is_vector_eq!</span>(DateVector, lhs, rhs),
<a href=#69 id=69 data-nosnippet>69</a> Timestamp(t) =&gt; <span class="kw">match </span>t {
<a href=#70 id=70 data-nosnippet>70</a> TimestampType::Second(<span class="kw">_</span>) =&gt; {
<a href=#71 id=71 data-nosnippet>71</a> <span class="macro">is_vector_eq!</span>(TimestampSecondVector, lhs, rhs)
<a href=#72 id=72 data-nosnippet>72</a> }
<a href=#73 id=73 data-nosnippet>73</a> TimestampType::Millisecond(<span class="kw">_</span>) =&gt; {
<a href=#74 id=74 data-nosnippet>74</a> <span class="macro">is_vector_eq!</span>(TimestampMillisecondVector, lhs, rhs)
<a href=#75 id=75 data-nosnippet>75</a> }
<a href=#76 id=76 data-nosnippet>76</a> TimestampType::Microsecond(<span class="kw">_</span>) =&gt; {
<a href=#77 id=77 data-nosnippet>77</a> <span class="macro">is_vector_eq!</span>(TimestampMicrosecondVector, lhs, rhs)
<a href=#78 id=78 data-nosnippet>78</a> }
<a href=#79 id=79 data-nosnippet>79</a> TimestampType::Nanosecond(<span class="kw">_</span>) =&gt; {
<a href=#80 id=80 data-nosnippet>80</a> <span class="macro">is_vector_eq!</span>(TimestampNanosecondVector, lhs, rhs)
<a href=#81 id=81 data-nosnippet>81</a> }
<a href=#82 id=82 data-nosnippet>82</a> },
<a href=#83 id=83 data-nosnippet>83</a> Interval(v) =&gt; <span class="kw">match </span>v.unit() {
<a href=#84 id=84 data-nosnippet>84</a> IntervalUnit::YearMonth =&gt; {
<a href=#85 id=85 data-nosnippet>85</a> <span class="macro">is_vector_eq!</span>(IntervalYearMonthVector, lhs, rhs)
<a href=#86 id=86 data-nosnippet>86</a> }
<a href=#87 id=87 data-nosnippet>87</a> IntervalUnit::DayTime =&gt; {
<a href=#88 id=88 data-nosnippet>88</a> <span class="macro">is_vector_eq!</span>(IntervalDayTimeVector, lhs, rhs)
<a href=#89 id=89 data-nosnippet>89</a> }
<a href=#90 id=90 data-nosnippet>90</a> IntervalUnit::MonthDayNano =&gt; {
<a href=#91 id=91 data-nosnippet>91</a> <span class="macro">is_vector_eq!</span>(IntervalMonthDayNanoVector, lhs, rhs)
<a href=#92 id=92 data-nosnippet>92</a> }
<a href=#93 id=93 data-nosnippet>93</a> },
<a href=#94 id=94 data-nosnippet>94</a> List(<span class="kw">_</span>) =&gt; <span class="macro">is_vector_eq!</span>(ListVector, lhs, rhs),
<a href=#95 id=95 data-nosnippet>95</a> Struct(<span class="kw">_</span>) =&gt; <span class="macro">is_vector_eq!</span>(StructVector, lhs, rhs),
<a href=#96 id=96 data-nosnippet>96</a> UInt8(<span class="kw">_</span>) | UInt16(<span class="kw">_</span>) | UInt32(<span class="kw">_</span>) | UInt64(<span class="kw">_</span>) | Int8(<span class="kw">_</span>) | Int16(<span class="kw">_</span>) | Int32(<span class="kw">_</span>) | Int64(<span class="kw">_</span>)
<a href=#97 id=97 data-nosnippet>97</a> | Float32(<span class="kw">_</span>) | Float64(<span class="kw">_</span>) | Dictionary(<span class="kw">_</span>) =&gt; {
<a href=#98 id=98 data-nosnippet>98</a> <span class="macro">with_match_primitive_type_id!</span>(lhs_type.logical_type_id(), |<span class="macro-nonterminal">$T</span>| {
<a href=#99 id=99 data-nosnippet>99</a> <span class="kw">let </span>lhs = lhs.as_any().downcast_ref::&lt;PrimitiveVector&lt;<span class="macro-nonterminal">$T</span>&gt;&gt;().unwrap();
<a href=#100 id=100 data-nosnippet>100</a> <span class="kw">let </span>rhs = rhs.as_any().downcast_ref::&lt;PrimitiveVector&lt;<span class="macro-nonterminal">$T</span>&gt;&gt;().unwrap();
<a href=#101 id=101 data-nosnippet>101</a>
<a href=#102 id=102 data-nosnippet>102</a> lhs == rhs
<a href=#103 id=103 data-nosnippet>103</a> },
<a href=#104 id=104 data-nosnippet>104</a> {
<a href=#105 id=105 data-nosnippet>105</a> <span class="macro">unreachable!</span>(<span class="string">"should not compare {} with {}"</span>, lhs.vector_type_name(), rhs.vector_type_name())
<a href=#106 id=106 data-nosnippet>106</a> })
<a href=#107 id=107 data-nosnippet>107</a> }
<a href=#108 id=108 data-nosnippet>108</a>
<a href=#109 id=109 data-nosnippet>109</a> Time(t) =&gt; <span class="kw">match </span>t {
<a href=#110 id=110 data-nosnippet>110</a> TimeType::Second(<span class="kw">_</span>) =&gt; {
<a href=#111 id=111 data-nosnippet>111</a> <span class="macro">is_vector_eq!</span>(TimeSecondVector, lhs, rhs)
<a href=#112 id=112 data-nosnippet>112</a> }
<a href=#113 id=113 data-nosnippet>113</a> TimeType::Millisecond(<span class="kw">_</span>) =&gt; {
<a href=#114 id=114 data-nosnippet>114</a> <span class="macro">is_vector_eq!</span>(TimeMillisecondVector, lhs, rhs)
<a href=#115 id=115 data-nosnippet>115</a> }
<a href=#116 id=116 data-nosnippet>116</a> TimeType::Microsecond(<span class="kw">_</span>) =&gt; {
<a href=#117 id=117 data-nosnippet>117</a> <span class="macro">is_vector_eq!</span>(TimeMicrosecondVector, lhs, rhs)
<a href=#118 id=118 data-nosnippet>118</a> }
<a href=#119 id=119 data-nosnippet>119</a> TimeType::Nanosecond(<span class="kw">_</span>) =&gt; {
<a href=#120 id=120 data-nosnippet>120</a> <span class="macro">is_vector_eq!</span>(TimeNanosecondVector, lhs, rhs)
<a href=#121 id=121 data-nosnippet>121</a> }
<a href=#122 id=122 data-nosnippet>122</a> },
<a href=#123 id=123 data-nosnippet>123</a> Duration(d) =&gt; <span class="kw">match </span>d {
<a href=#124 id=124 data-nosnippet>124</a> DurationType::Second(<span class="kw">_</span>) =&gt; {
<a href=#125 id=125 data-nosnippet>125</a> <span class="macro">is_vector_eq!</span>(DurationSecondVector, lhs, rhs)
<a href=#126 id=126 data-nosnippet>126</a> }
<a href=#127 id=127 data-nosnippet>127</a> DurationType::Millisecond(<span class="kw">_</span>) =&gt; {
<a href=#128 id=128 data-nosnippet>128</a> <span class="macro">is_vector_eq!</span>(DurationMillisecondVector, lhs, rhs)
<a href=#129 id=129 data-nosnippet>129</a> }
<a href=#130 id=130 data-nosnippet>130</a> DurationType::Microsecond(<span class="kw">_</span>) =&gt; {
<a href=#131 id=131 data-nosnippet>131</a> <span class="macro">is_vector_eq!</span>(DurationMicrosecondVector, lhs, rhs)
<a href=#132 id=132 data-nosnippet>132</a> }
<a href=#133 id=133 data-nosnippet>133</a> DurationType::Nanosecond(<span class="kw">_</span>) =&gt; {
<a href=#134 id=134 data-nosnippet>134</a> <span class="macro">is_vector_eq!</span>(DurationNanosecondVector, lhs, rhs)
<a href=#135 id=135 data-nosnippet>135</a> }
<a href=#136 id=136 data-nosnippet>136</a> },
<a href=#137 id=137 data-nosnippet>137</a> Decimal128(<span class="kw">_</span>) =&gt; {
<a href=#138 id=138 data-nosnippet>138</a> <span class="macro">is_vector_eq!</span>(Decimal128Vector, lhs, rhs)
<a href=#139 id=139 data-nosnippet>139</a> }
<a href=#140 id=140 data-nosnippet>140</a> }
<a href=#141 id=141 data-nosnippet>141</a>}
<a href=#142 id=142 data-nosnippet>142</a>
<a href=#143 id=143 data-nosnippet>143</a><span class="attr">#[cfg(test)]
<a href=#144 id=144 data-nosnippet>144</a></span><span class="kw">mod </span>tests {
<a href=#145 id=145 data-nosnippet>145</a> <span class="kw">use </span>arrow::datatypes::{IntervalDayTime, IntervalMonthDayNano};
<a href=#146 id=146 data-nosnippet>146</a>
<a href=#147 id=147 data-nosnippet>147</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#148 id=148 data-nosnippet>148</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#149 id=149 data-nosnippet>149</a> DurationMicrosecondVector, DurationMillisecondVector, DurationNanosecondVector,
<a href=#150 id=150 data-nosnippet>150</a> DurationSecondVector, Float32Vector, Float64Vector, Int8Vector, Int16Vector, Int32Vector,
<a href=#151 id=151 data-nosnippet>151</a> Int64Vector, NullVector, UInt8Vector, UInt16Vector, UInt32Vector, UInt64Vector, VectorRef,
<a href=#152 id=152 data-nosnippet>152</a> list,
<a href=#153 id=153 data-nosnippet>153</a> };
<a href=#154 id=154 data-nosnippet>154</a>
<a href=#155 id=155 data-nosnippet>155</a> <span class="kw">fn </span>assert_vector_ref_eq(vector: VectorRef) {
<a href=#156 id=156 data-nosnippet>156</a> <span class="kw">let </span>rhs = vector.clone();
<a href=#157 id=157 data-nosnippet>157</a> <span class="macro">assert_eq!</span>(vector, rhs);
<a href=#158 id=158 data-nosnippet>158</a> assert_dyn_vector_eq(<span class="kw-2">&amp;*</span>vector, <span class="kw-2">&amp;*</span>rhs);
<a href=#159 id=159 data-nosnippet>159</a> }
<a href=#160 id=160 data-nosnippet>160</a>
<a href=#161 id=161 data-nosnippet>161</a> <span class="kw">fn </span>assert_dyn_vector_eq(lhs: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector, rhs: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector) {
<a href=#162 id=162 data-nosnippet>162</a> <span class="macro">assert_eq!</span>(lhs, rhs);
<a href=#163 id=163 data-nosnippet>163</a> }
<a href=#164 id=164 data-nosnippet>164</a>
<a href=#165 id=165 data-nosnippet>165</a> <span class="kw">fn </span>assert_vector_ref_ne(lhs: VectorRef, rhs: VectorRef) {
<a href=#166 id=166 data-nosnippet>166</a> <span class="macro">assert_ne!</span>(lhs, rhs);
<a href=#167 id=167 data-nosnippet>167</a> }
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a> <span class="attr">#[test]
<a href=#170 id=170 data-nosnippet>170</a> </span><span class="kw">fn </span>test_vector_eq() {
<a href=#171 id=171 data-nosnippet>171</a> assert_vector_ref_eq(Arc::new(BinaryVector::from(<span class="macro">vec!</span>[
<a href=#172 id=172 data-nosnippet>172</a> <span class="prelude-val">Some</span>(<span class="string">b"hello"</span>.to_vec()),
<a href=#173 id=173 data-nosnippet>173</a> <span class="prelude-val">Some</span>(<span class="string">b"world"</span>.to_vec()),
<a href=#174 id=174 data-nosnippet>174</a> ])));
<a href=#175 id=175 data-nosnippet>175</a> assert_vector_ref_eq(Arc::new(BooleanVector::from(<span class="macro">vec!</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>])));
<a href=#176 id=176 data-nosnippet>176</a> assert_vector_ref_eq(Arc::new(BooleanVector::from(<span class="macro">vec!</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>])));
<a href=#177 id=177 data-nosnippet>177</a> assert_vector_ref_eq(Arc::new(DateVector::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">100</span>), <span class="prelude-val">Some</span>(<span class="number">120</span>)])));
<a href=#178 id=178 data-nosnippet>178</a> assert_vector_ref_eq(Arc::new(TimestampSecondVector::from_values([<span class="number">100</span>, <span class="number">120</span>])));
<a href=#179 id=179 data-nosnippet>179</a> assert_vector_ref_eq(Arc::new(TimestampMillisecondVector::from_values([
<a href=#180 id=180 data-nosnippet>180</a> <span class="number">100</span>, <span class="number">120</span>,
<a href=#181 id=181 data-nosnippet>181</a> ])));
<a href=#182 id=182 data-nosnippet>182</a> assert_vector_ref_eq(Arc::new(TimestampMicrosecondVector::from_values([
<a href=#183 id=183 data-nosnippet>183</a> <span class="number">100</span>, <span class="number">120</span>,
<a href=#184 id=184 data-nosnippet>184</a> ])));
<a href=#185 id=185 data-nosnippet>185</a> assert_vector_ref_eq(Arc::new(TimestampNanosecondVector::from_values([<span class="number">100</span>, <span class="number">120</span>])));
<a href=#186 id=186 data-nosnippet>186</a>
<a href=#187 id=187 data-nosnippet>187</a> <span class="kw">let </span>list_vector = list::tests::new_list_vector(<span class="kw-2">&amp;</span>[
<a href=#188 id=188 data-nosnippet>188</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">2</span>)]),
<a href=#189 id=189 data-nosnippet>189</a> <span class="prelude-val">None</span>,
<a href=#190 id=190 data-nosnippet>190</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">3</span>), <span class="prelude-val">Some</span>(<span class="number">4</span>)]),
<a href=#191 id=191 data-nosnippet>191</a> ]);
<a href=#192 id=192 data-nosnippet>192</a> assert_vector_ref_eq(Arc::new(list_vector));
<a href=#193 id=193 data-nosnippet>193</a>
<a href=#194 id=194 data-nosnippet>194</a> assert_vector_ref_eq(Arc::new(NullVector::new(<span class="number">4</span>)));
<a href=#195 id=195 data-nosnippet>195</a> assert_vector_ref_eq(Arc::new(StringVector::from(<span class="macro">vec!</span>[
<a href=#196 id=196 data-nosnippet>196</a> <span class="prelude-val">Some</span>(<span class="string">"hello"</span>),
<a href=#197 id=197 data-nosnippet>197</a> <span class="prelude-val">Some</span>(<span class="string">"world"</span>),
<a href=#198 id=198 data-nosnippet>198</a> ])));
<a href=#199 id=199 data-nosnippet>199</a>
<a href=#200 id=200 data-nosnippet>200</a> assert_vector_ref_eq(Arc::new(Int8Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])));
<a href=#201 id=201 data-nosnippet>201</a> assert_vector_ref_eq(Arc::new(UInt8Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])));
<a href=#202 id=202 data-nosnippet>202</a> assert_vector_ref_eq(Arc::new(Int16Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])));
<a href=#203 id=203 data-nosnippet>203</a> assert_vector_ref_eq(Arc::new(UInt16Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])));
<a href=#204 id=204 data-nosnippet>204</a> assert_vector_ref_eq(Arc::new(Int32Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])));
<a href=#205 id=205 data-nosnippet>205</a> assert_vector_ref_eq(Arc::new(UInt32Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])));
<a href=#206 id=206 data-nosnippet>206</a> assert_vector_ref_eq(Arc::new(Int64Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])));
<a href=#207 id=207 data-nosnippet>207</a> assert_vector_ref_eq(Arc::new(UInt64Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])));
<a href=#208 id=208 data-nosnippet>208</a> assert_vector_ref_eq(Arc::new(Float32Vector::from_slice([<span class="number">1.0</span>, <span class="number">2.0</span>, <span class="number">3.0</span>, <span class="number">4.0</span>])));
<a href=#209 id=209 data-nosnippet>209</a> assert_vector_ref_eq(Arc::new(Float64Vector::from_slice([<span class="number">1.0</span>, <span class="number">2.0</span>, <span class="number">3.0</span>, <span class="number">4.0</span>])));
<a href=#210 id=210 data-nosnippet>210</a>
<a href=#211 id=211 data-nosnippet>211</a> assert_vector_ref_eq(Arc::new(TimeSecondVector::from_values([<span class="number">100</span>, <span class="number">120</span>])));
<a href=#212 id=212 data-nosnippet>212</a> assert_vector_ref_eq(Arc::new(TimeMillisecondVector::from_values([<span class="number">100</span>, <span class="number">120</span>])));
<a href=#213 id=213 data-nosnippet>213</a> assert_vector_ref_eq(Arc::new(TimeMicrosecondVector::from_values([<span class="number">100</span>, <span class="number">120</span>])));
<a href=#214 id=214 data-nosnippet>214</a> assert_vector_ref_eq(Arc::new(TimeNanosecondVector::from_values([<span class="number">100</span>, <span class="number">120</span>])));
<a href=#215 id=215 data-nosnippet>215</a>
<a href=#216 id=216 data-nosnippet>216</a> assert_vector_ref_eq(Arc::new(IntervalYearMonthVector::from_values([
<a href=#217 id=217 data-nosnippet>217</a> <span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>, <span class="number">4000</span>,
<a href=#218 id=218 data-nosnippet>218</a> ])));
<a href=#219 id=219 data-nosnippet>219</a> assert_vector_ref_eq(Arc::new(IntervalDayTimeVector::from_values([
<a href=#220 id=220 data-nosnippet>220</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">1000</span>),
<a href=#221 id=221 data-nosnippet>221</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">2000</span>),
<a href=#222 id=222 data-nosnippet>222</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">3000</span>),
<a href=#223 id=223 data-nosnippet>223</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">4000</span>),
<a href=#224 id=224 data-nosnippet>224</a> ])));
<a href=#225 id=225 data-nosnippet>225</a> assert_vector_ref_eq(Arc::new(IntervalMonthDayNanoVector::from_values([
<a href=#226 id=226 data-nosnippet>226</a> IntervalMonthDayNano::new(<span class="number">1</span>, <span class="number">1</span>, <span class="number">1000</span>),
<a href=#227 id=227 data-nosnippet>227</a> IntervalMonthDayNano::new(<span class="number">1</span>, <span class="number">1</span>, <span class="number">2000</span>),
<a href=#228 id=228 data-nosnippet>228</a> IntervalMonthDayNano::new(<span class="number">1</span>, <span class="number">1</span>, <span class="number">3000</span>),
<a href=#229 id=229 data-nosnippet>229</a> IntervalMonthDayNano::new(<span class="number">1</span>, <span class="number">1</span>, <span class="number">4000</span>),
<a href=#230 id=230 data-nosnippet>230</a> ])));
<a href=#231 id=231 data-nosnippet>231</a> assert_vector_ref_eq(Arc::new(DurationSecondVector::from_values([<span class="number">300</span>, <span class="number">310</span>])));
<a href=#232 id=232 data-nosnippet>232</a> assert_vector_ref_eq(Arc::new(DurationMillisecondVector::from_values([<span class="number">300</span>, <span class="number">310</span>])));
<a href=#233 id=233 data-nosnippet>233</a> assert_vector_ref_eq(Arc::new(DurationMicrosecondVector::from_values([<span class="number">300</span>, <span class="number">310</span>])));
<a href=#234 id=234 data-nosnippet>234</a> assert_vector_ref_eq(Arc::new(DurationNanosecondVector::from_values([<span class="number">300</span>, <span class="number">310</span>])));
<a href=#235 id=235 data-nosnippet>235</a> assert_vector_ref_eq(Arc::new(Decimal128Vector::from_values(<span class="macro">vec!</span>[
<a href=#236 id=236 data-nosnippet>236</a> <span class="number">1i128</span>, <span class="number">2i128</span>, <span class="number">3i128</span>,
<a href=#237 id=237 data-nosnippet>237</a> ])));
<a href=#238 id=238 data-nosnippet>238</a> }
<a href=#239 id=239 data-nosnippet>239</a>
<a href=#240 id=240 data-nosnippet>240</a> <span class="attr">#[test]
<a href=#241 id=241 data-nosnippet>241</a> </span><span class="kw">fn </span>test_vector_ne() {
<a href=#242 id=242 data-nosnippet>242</a> assert_vector_ref_ne(
<a href=#243 id=243 data-nosnippet>243</a> Arc::new(Int32Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])),
<a href=#244 id=244 data-nosnippet>244</a> Arc::new(Int32Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>])),
<a href=#245 id=245 data-nosnippet>245</a> );
<a href=#246 id=246 data-nosnippet>246</a> assert_vector_ref_ne(
<a href=#247 id=247 data-nosnippet>247</a> Arc::new(Int32Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])),
<a href=#248 id=248 data-nosnippet>248</a> Arc::new(Int8Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])),
<a href=#249 id=249 data-nosnippet>249</a> );
<a href=#250 id=250 data-nosnippet>250</a> assert_vector_ref_ne(
<a href=#251 id=251 data-nosnippet>251</a> Arc::new(Int32Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>])),
<a href=#252 id=252 data-nosnippet>252</a> Arc::new(BooleanVector::from(<span class="macro">vec!</span>[<span class="bool-val">true</span>, <span class="bool-val">true</span>])),
<a href=#253 id=253 data-nosnippet>253</a> );
<a href=#254 id=254 data-nosnippet>254</a> assert_vector_ref_ne(Arc::new(NullVector::new(<span class="number">5</span>)), Arc::new(NullVector::new(<span class="number">8</span>)));
<a href=#255 id=255 data-nosnippet>255</a>
<a href=#256 id=256 data-nosnippet>256</a> assert_vector_ref_ne(
<a href=#257 id=257 data-nosnippet>257</a> Arc::new(TimeMicrosecondVector::from_values([<span class="number">100</span>, <span class="number">120</span>])),
<a href=#258 id=258 data-nosnippet>258</a> Arc::new(TimeMicrosecondVector::from_values([<span class="number">200</span>, <span class="number">220</span>])),
<a href=#259 id=259 data-nosnippet>259</a> );
<a href=#260 id=260 data-nosnippet>260</a>
<a href=#261 id=261 data-nosnippet>261</a> assert_vector_ref_ne(
<a href=#262 id=262 data-nosnippet>262</a> Arc::new(IntervalDayTimeVector::from_values([
<a href=#263 id=263 data-nosnippet>263</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">1000</span>),
<a href=#264 id=264 data-nosnippet>264</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">2000</span>),
<a href=#265 id=265 data-nosnippet>265</a> ])),
<a href=#266 id=266 data-nosnippet>266</a> Arc::new(IntervalDayTimeVector::from_values([
<a href=#267 id=267 data-nosnippet>267</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">2100</span>),
<a href=#268 id=268 data-nosnippet>268</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">1200</span>),
<a href=#269 id=269 data-nosnippet>269</a> ])),
<a href=#270 id=270 data-nosnippet>270</a> );
<a href=#271 id=271 data-nosnippet>271</a> assert_vector_ref_ne(
<a href=#272 id=272 data-nosnippet>272</a> Arc::new(IntervalMonthDayNanoVector::from_values([
<a href=#273 id=273 data-nosnippet>273</a> IntervalMonthDayNano::new(<span class="number">1</span>, <span class="number">1</span>, <span class="number">1000</span>),
<a href=#274 id=274 data-nosnippet>274</a> IntervalMonthDayNano::new(<span class="number">1</span>, <span class="number">1</span>, <span class="number">2000</span>),
<a href=#275 id=275 data-nosnippet>275</a> ])),
<a href=#276 id=276 data-nosnippet>276</a> Arc::new(IntervalMonthDayNanoVector::from_values([
<a href=#277 id=277 data-nosnippet>277</a> IntervalMonthDayNano::new(<span class="number">1</span>, <span class="number">1</span>, <span class="number">2100</span>),
<a href=#278 id=278 data-nosnippet>278</a> IntervalMonthDayNano::new(<span class="number">1</span>, <span class="number">1</span>, <span class="number">1200</span>),
<a href=#279 id=279 data-nosnippet>279</a> ])),
<a href=#280 id=280 data-nosnippet>280</a> );
<a href=#281 id=281 data-nosnippet>281</a> assert_vector_ref_ne(
<a href=#282 id=282 data-nosnippet>282</a> Arc::new(IntervalYearMonthVector::from_values([<span class="number">1000</span>, <span class="number">2000</span>])),
<a href=#283 id=283 data-nosnippet>283</a> Arc::new(IntervalYearMonthVector::from_values([<span class="number">2100</span>, <span class="number">1200</span>])),
<a href=#284 id=284 data-nosnippet>284</a> );
<a href=#285 id=285 data-nosnippet>285</a>
<a href=#286 id=286 data-nosnippet>286</a> assert_vector_ref_ne(
<a href=#287 id=287 data-nosnippet>287</a> Arc::new(DurationSecondVector::from_values([<span class="number">300</span>, <span class="number">310</span>])),
<a href=#288 id=288 data-nosnippet>288</a> Arc::new(DurationSecondVector::from_values([<span class="number">300</span>, <span class="number">320</span>])),
<a href=#289 id=289 data-nosnippet>289</a> );
<a href=#290 id=290 data-nosnippet>290</a>
<a href=#291 id=291 data-nosnippet>291</a> assert_vector_ref_ne(
<a href=#292 id=292 data-nosnippet>292</a> Arc::new(Decimal128Vector::from_values([<span class="number">300i128</span>, <span class="number">310i128</span>])),
<a href=#293 id=293 data-nosnippet>293</a> Arc::new(Decimal128Vector::from_values([<span class="number">300i128</span>, <span class="number">320i128</span>])),
<a href=#294 id=294 data-nosnippet>294</a> );
<a href=#295 id=295 data-nosnippet>295</a> }
<a href=#296 id=296 data-nosnippet>296</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/helper.rs`."><title>helper.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>helper.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="doccomment">//! Vector helper functions, inspired by databend Series mod
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a></span><span class="kw">use </span>std::any::Any;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>std::sync::Arc;
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>arrow::array::{Array, ArrayRef, StringArray};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>arrow::compute;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>arrow::compute::kernels::comparison;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>arrow::datatypes::{
<a href=#24 id=24 data-nosnippet>24</a> DataType <span class="kw">as </span>ArrowDataType, Int8Type, Int16Type, Int32Type, Int64Type, TimeUnit, UInt8Type,
<a href=#25 id=25 data-nosnippet>25</a> UInt16Type, UInt32Type, UInt64Type,
<a href=#26 id=26 data-nosnippet>26</a>};
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span>arrow_array::{DictionaryArray, StructArray};
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span>arrow_schema::IntervalUnit;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span>datafusion_common::ScalarValue;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span>snafu::{OptionExt, ResultExt};
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#33 id=33 data-nosnippet>33</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, ConvertScalarToArrowArraySnafu, <span class="prelude-ty">Result</span>};
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">use </span><span class="kw">crate</span>::prelude::DataType;
<a href=#35 id=35 data-nosnippet>35</a><span class="kw">use </span><span class="kw">crate</span>::scalars::Scalar;
<a href=#36 id=36 data-nosnippet>36</a><span class="kw">use </span><span class="kw">crate</span>::types::StructType;
<a href=#37 id=37 data-nosnippet>37</a><span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#38 id=38 data-nosnippet>38</a><span class="kw">use </span><span class="kw">crate</span>::vectors::struct_vector::StructVector;
<a href=#39 id=39 data-nosnippet>39</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#40 id=40 data-nosnippet>40</a> BinaryVector, BooleanVector, DateVector, Decimal128Vector, DictionaryVector,
<a href=#41 id=41 data-nosnippet>41</a> DurationMicrosecondVector, DurationMillisecondVector, DurationNanosecondVector,
<a href=#42 id=42 data-nosnippet>42</a> DurationSecondVector, Float32Vector, Float64Vector, Int8Vector, Int16Vector, Int32Vector,
<a href=#43 id=43 data-nosnippet>43</a> Int64Vector, IntervalDayTimeVector, IntervalMonthDayNanoVector, IntervalYearMonthVector,
<a href=#44 id=44 data-nosnippet>44</a> ListVector, NullVector, StringVector, TimeMicrosecondVector, TimeMillisecondVector,
<a href=#45 id=45 data-nosnippet>45</a> TimeNanosecondVector, TimeSecondVector, TimestampMicrosecondVector, TimestampMillisecondVector,
<a href=#46 id=46 data-nosnippet>46</a> TimestampNanosecondVector, TimestampSecondVector, UInt8Vector, UInt16Vector, UInt32Vector,
<a href=#47 id=47 data-nosnippet>47</a> UInt64Vector, Vector, VectorRef,
<a href=#48 id=48 data-nosnippet>48</a>};
<a href=#49 id=49 data-nosnippet>49</a>
<a href=#50 id=50 data-nosnippet>50</a><span class="doccomment">/// Helper functions for `Vector`.
<a href=#51 id=51 data-nosnippet>51</a></span><span class="kw">pub struct </span>Helper;
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a><span class="kw">impl </span>Helper {
<a href=#54 id=54 data-nosnippet>54</a> <span class="doccomment">/// Get a pointer to the underlying data of this vectors.
<a href=#55 id=55 data-nosnippet>55</a> /// Can be useful for fast comparisons.
<a href=#56 id=56 data-nosnippet>56</a> /// # Safety
<a href=#57 id=57 data-nosnippet>57</a> /// Assumes that the `vector` is T.
<a href=#58 id=58 data-nosnippet>58</a> </span><span class="kw">pub unsafe fn </span>static_cast&lt;T: Any&gt;(vector: <span class="kw-2">&amp;</span>VectorRef) -&gt; <span class="kw-2">&amp;</span>T {
<a href=#59 id=59 data-nosnippet>59</a> <span class="kw">let </span>object = vector.as_ref();
<a href=#60 id=60 data-nosnippet>60</a> <span class="macro">debug_assert!</span>(object.as_any().is::&lt;T&gt;());
<a href=#61 id=61 data-nosnippet>61</a> <span class="kw">unsafe </span>{ <span class="kw-2">&amp;*</span>(object <span class="kw">as </span><span class="kw-2">*const </span><span class="kw">dyn </span>Vector <span class="kw">as </span><span class="kw-2">*const </span>T) }
<a href=#62 id=62 data-nosnippet>62</a> }
<a href=#63 id=63 data-nosnippet>63</a>
<a href=#64 id=64 data-nosnippet>64</a> <span class="kw">pub fn </span>check_get_scalar&lt;T: Scalar&gt;(vector: <span class="kw-2">&amp;</span>VectorRef) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="kw-2">&amp;</span>&lt;T <span class="kw">as </span>Scalar&gt;::VectorType&gt; {
<a href=#65 id=65 data-nosnippet>65</a> vector
<a href=#66 id=66 data-nosnippet>66</a> .as_any()
<a href=#67 id=67 data-nosnippet>67</a> .downcast_ref::&lt;&lt;T <span class="kw">as </span>Scalar&gt;::VectorType&gt;()
<a href=#68 id=68 data-nosnippet>68</a> .with_context(|| error::UnknownVectorSnafu {
<a href=#69 id=69 data-nosnippet>69</a> msg: <span class="macro">format!</span>(
<a href=#70 id=70 data-nosnippet>70</a> <span class="string">"downcast vector error, vector type: {:?}, expected vector: {:?}"</span>,
<a href=#71 id=71 data-nosnippet>71</a> vector.vector_type_name(),
<a href=#72 id=72 data-nosnippet>72</a> std::any::type_name::&lt;T&gt;(),
<a href=#73 id=73 data-nosnippet>73</a> ),
<a href=#74 id=74 data-nosnippet>74</a> })
<a href=#75 id=75 data-nosnippet>75</a> }
<a href=#76 id=76 data-nosnippet>76</a>
<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">pub fn </span>check_get&lt;T: <span class="lifetime">'static </span>+ Vector&gt;(vector: <span class="kw-2">&amp;</span>VectorRef) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="kw-2">&amp;</span>T&gt; {
<a href=#78 id=78 data-nosnippet>78</a> vector
<a href=#79 id=79 data-nosnippet>79</a> .as_any()
<a href=#80 id=80 data-nosnippet>80</a> .downcast_ref::&lt;T&gt;()
<a href=#81 id=81 data-nosnippet>81</a> .with_context(|| error::UnknownVectorSnafu {
<a href=#82 id=82 data-nosnippet>82</a> msg: <span class="macro">format!</span>(
<a href=#83 id=83 data-nosnippet>83</a> <span class="string">"downcast vector error, vector type: {:?}, expected vector: {:?}"</span>,
<a href=#84 id=84 data-nosnippet>84</a> vector.vector_type_name(),
<a href=#85 id=85 data-nosnippet>85</a> std::any::type_name::&lt;T&gt;(),
<a href=#86 id=86 data-nosnippet>86</a> ),
<a href=#87 id=87 data-nosnippet>87</a> })
<a href=#88 id=88 data-nosnippet>88</a> }
<a href=#89 id=89 data-nosnippet>89</a>
<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">pub fn </span>check_get_scalar_vector&lt;T: Scalar&gt;(
<a href=#91 id=91 data-nosnippet>91</a> vector: <span class="kw-2">&amp;</span>VectorRef,
<a href=#92 id=92 data-nosnippet>92</a> ) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="kw-2">&amp;</span>&lt;T <span class="kw">as </span>Scalar&gt;::VectorType&gt; {
<a href=#93 id=93 data-nosnippet>93</a> vector
<a href=#94 id=94 data-nosnippet>94</a> .as_any()
<a href=#95 id=95 data-nosnippet>95</a> .downcast_ref::&lt;&lt;T <span class="kw">as </span>Scalar&gt;::VectorType&gt;()
<a href=#96 id=96 data-nosnippet>96</a> .with_context(|| error::UnknownVectorSnafu {
<a href=#97 id=97 data-nosnippet>97</a> msg: <span class="macro">format!</span>(
<a href=#98 id=98 data-nosnippet>98</a> <span class="string">"downcast vector error, vector type: {:?}, expected vector: {:?}"</span>,
<a href=#99 id=99 data-nosnippet>99</a> vector.vector_type_name(),
<a href=#100 id=100 data-nosnippet>100</a> std::any::type_name::&lt;T&gt;(),
<a href=#101 id=101 data-nosnippet>101</a> ),
<a href=#102 id=102 data-nosnippet>102</a> })
<a href=#103 id=103 data-nosnippet>103</a> }
<a href=#104 id=104 data-nosnippet>104</a>
<a href=#105 id=105 data-nosnippet>105</a> <span class="doccomment">/// Materializes an Arrow scalar as a vector of the given length.
<a href=#106 id=106 data-nosnippet>106</a> ///
<a href=#107 id=107 data-nosnippet>107</a> /// With a type hint, casts the array to the requested representation and returns
<a href=#108 id=108 data-nosnippet>108</a> /// an error if the vector cannot preserve that concrete type. Without a hint,
<a href=#109 id=109 data-nosnippet>109</a> /// normalizes the scalar to a supported GreptimeDB representation.
<a href=#110 id=110 data-nosnippet>110</a> </span><span class="kw">pub fn </span>try_from_scalar_value(
<a href=#111 id=111 data-nosnippet>111</a> value: ScalarValue,
<a href=#112 id=112 data-nosnippet>112</a> length: usize,
<a href=#113 id=113 data-nosnippet>113</a> type_hint: <span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>ConcreteDataType&gt;,
<a href=#114 id=114 data-nosnippet>114</a> ) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#115 id=115 data-nosnippet>115</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(data_type) = type_hint {
<a href=#116 id=116 data-nosnippet>116</a> <span class="kw">let </span><span class="kw-2">mut </span>array = value
<a href=#117 id=117 data-nosnippet>117</a> .to_array_of_size(length)
<a href=#118 id=118 data-nosnippet>118</a> .context(ConvertScalarToArrowArraySnafu)<span class="question-mark">?</span>;
<a href=#119 id=119 data-nosnippet>119</a> <span class="kw">let </span>arrow_type = data_type.as_arrow_type();
<a href=#120 id=120 data-nosnippet>120</a> <span class="kw">if </span>array.data_type() != <span class="kw-2">&amp;</span>arrow_type {
<a href=#121 id=121 data-nosnippet>121</a> array = compute::cast(<span class="kw-2">&amp;</span>array, <span class="kw-2">&amp;</span>arrow_type).context(error::ArrowComputeSnafu)<span class="question-mark">?</span>;
<a href=#122 id=122 data-nosnippet>122</a> }
<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">let </span>vector = <span class="self">Self</span>::try_into_vector(array)<span class="question-mark">?</span>;
<a href=#124 id=124 data-nosnippet>124</a> <span class="kw">if </span><span class="kw-2">&amp;</span>vector.data_type() != data_type {
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">return </span>error::CastTypeSnafu {
<a href=#126 id=126 data-nosnippet>126</a> msg: <span class="macro">format!</span>(
<a href=#127 id=127 data-nosnippet>127</a> <span class="string">"Scalar materialization produced {:?}, expected {data_type:?}"</span>,
<a href=#128 id=128 data-nosnippet>128</a> vector.data_type()
<a href=#129 id=129 data-nosnippet>129</a> ),
<a href=#130 id=130 data-nosnippet>130</a> }
<a href=#131 id=131 data-nosnippet>131</a> .fail();
<a href=#132 id=132 data-nosnippet>132</a> }
<a href=#133 id=133 data-nosnippet>133</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(vector);
<a href=#134 id=134 data-nosnippet>134</a> }
<a href=#135 id=135 data-nosnippet>135</a>
<a href=#136 id=136 data-nosnippet>136</a> <span class="kw">let </span>value = <span class="kw">match </span>value {
<a href=#137 id=137 data-nosnippet>137</a> <span class="comment">// GreptimeDB doesn't support Float16 vectors.
<a href=#138 id=138 data-nosnippet>138</a> </span>ScalarValue::Float16(v) =&gt; ScalarValue::Float32(v.map(f32::from)),
<a href=#139 id=139 data-nosnippet>139</a> ScalarValue::LargeUtf8(v) =&gt; ScalarValue::Utf8(v),
<a href=#140 id=140 data-nosnippet>140</a> ScalarValue::LargeBinary(v) | ScalarValue::FixedSizeBinary(<span class="kw">_</span>, v) =&gt; {
<a href=#141 id=141 data-nosnippet>141</a> ScalarValue::Binary(v)
<a href=#142 id=142 data-nosnippet>142</a> }
<a href=#143 id=143 data-nosnippet>143</a> <span class="comment">// Timezones are not supported by GreptimeDB vectors.
<a href=#144 id=144 data-nosnippet>144</a> </span>ScalarValue::TimestampSecond(v, <span class="kw">_</span>) =&gt; ScalarValue::TimestampSecond(v, <span class="prelude-val">None</span>),
<a href=#145 id=145 data-nosnippet>145</a> ScalarValue::TimestampMillisecond(v, <span class="kw">_</span>) =&gt; ScalarValue::TimestampMillisecond(v, <span class="prelude-val">None</span>),
<a href=#146 id=146 data-nosnippet>146</a> ScalarValue::TimestampMicrosecond(v, <span class="kw">_</span>) =&gt; ScalarValue::TimestampMicrosecond(v, <span class="prelude-val">None</span>),
<a href=#147 id=147 data-nosnippet>147</a> ScalarValue::TimestampNanosecond(v, <span class="kw">_</span>) =&gt; ScalarValue::TimestampNanosecond(v, <span class="prelude-val">None</span>),
<a href=#148 id=148 data-nosnippet>148</a> value @ (ScalarValue::Decimal32(<span class="kw">_</span>, <span class="kw">_</span>, <span class="kw">_</span>)
<a href=#149 id=149 data-nosnippet>149</a> | ScalarValue::Decimal64(<span class="kw">_</span>, <span class="kw">_</span>, <span class="kw">_</span>)
<a href=#150 id=150 data-nosnippet>150</a> | ScalarValue::Decimal256(<span class="kw">_</span>, <span class="kw">_</span>, <span class="kw">_</span>)
<a href=#151 id=151 data-nosnippet>151</a> | ScalarValue::FixedSizeList(<span class="kw">_</span>)
<a href=#152 id=152 data-nosnippet>152</a> | ScalarValue::LargeList(<span class="kw">_</span>)
<a href=#153 id=153 data-nosnippet>153</a> | ScalarValue::ListView(<span class="kw">_</span>)
<a href=#154 id=154 data-nosnippet>154</a> | ScalarValue::LargeListView(<span class="kw">_</span>)
<a href=#155 id=155 data-nosnippet>155</a> | ScalarValue::Dictionary(<span class="kw">_</span>, <span class="kw">_</span>)
<a href=#156 id=156 data-nosnippet>156</a> | ScalarValue::Union(<span class="kw">_</span>, <span class="kw">_</span>, <span class="kw">_</span>)
<a href=#157 id=157 data-nosnippet>157</a> | ScalarValue::Utf8View(<span class="kw">_</span>)
<a href=#158 id=158 data-nosnippet>158</a> | ScalarValue::BinaryView(<span class="kw">_</span>)
<a href=#159 id=159 data-nosnippet>159</a> | ScalarValue::Map(<span class="kw">_</span>)
<a href=#160 id=160 data-nosnippet>160</a> | ScalarValue::Date64(<span class="kw">_</span>)
<a href=#161 id=161 data-nosnippet>161</a> | ScalarValue::RunEndEncoded(<span class="kw">_</span>, <span class="kw">_</span>, <span class="kw">_</span>)) =&gt; {
<a href=#162 id=162 data-nosnippet>162</a> <span class="kw">return </span>error::ConversionSnafu {
<a href=#163 id=163 data-nosnippet>163</a> from: <span class="macro">format!</span>(<span class="string">"Unsupported scalar value: {value}"</span>),
<a href=#164 id=164 data-nosnippet>164</a> }
<a href=#165 id=165 data-nosnippet>165</a> .fail();
<a href=#166 id=166 data-nosnippet>166</a> }
<a href=#167 id=167 data-nosnippet>167</a> value =&gt; value,
<a href=#168 id=168 data-nosnippet>168</a> };
<a href=#169 id=169 data-nosnippet>169</a>
<a href=#170 id=170 data-nosnippet>170</a> <span class="kw">let </span>array = value
<a href=#171 id=171 data-nosnippet>171</a> .to_array_of_size(length)
<a href=#172 id=172 data-nosnippet>172</a> .context(ConvertScalarToArrowArraySnafu)<span class="question-mark">?</span>;
<a href=#173 id=173 data-nosnippet>173</a> <span class="self">Self</span>::try_into_vector(array)
<a href=#174 id=174 data-nosnippet>174</a> }
<a href=#175 id=175 data-nosnippet>175</a>
<a href=#176 id=176 data-nosnippet>176</a> <span class="doccomment">/// Try to cast an arrow array into vector
<a href=#177 id=177 data-nosnippet>177</a> ///
<a href=#178 id=178 data-nosnippet>178</a> /// # Panics
<a href=#179 id=179 data-nosnippet>179</a> /// Panic if given arrow data type is not supported.
<a href=#180 id=180 data-nosnippet>180</a> </span><span class="kw">pub fn </span>try_into_vector(array: <span class="kw">impl </span>AsRef&lt;<span class="kw">dyn </span>Array&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#181 id=181 data-nosnippet>181</a> <span class="prelude-val">Ok</span>(<span class="kw">match </span>array.as_ref().data_type() {
<a href=#182 id=182 data-nosnippet>182</a> ArrowDataType::Null =&gt; Arc::new(NullVector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#183 id=183 data-nosnippet>183</a> ArrowDataType::Boolean =&gt; Arc::new(BooleanVector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#184 id=184 data-nosnippet>184</a> ArrowDataType::Binary | ArrowDataType::BinaryView =&gt; {
<a href=#185 id=185 data-nosnippet>185</a> Arc::new(BinaryVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#186 id=186 data-nosnippet>186</a> }
<a href=#187 id=187 data-nosnippet>187</a> ArrowDataType::LargeBinary | ArrowDataType::FixedSizeBinary(<span class="kw">_</span>) =&gt; {
<a href=#188 id=188 data-nosnippet>188</a> <span class="kw">let </span>array = arrow::compute::cast(array.as_ref(), <span class="kw-2">&amp;</span>ArrowDataType::Binary)
<a href=#189 id=189 data-nosnippet>189</a> .context(<span class="kw">crate</span>::error::ArrowComputeSnafu)<span class="question-mark">?</span>;
<a href=#190 id=190 data-nosnippet>190</a> Arc::new(BinaryVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#191 id=191 data-nosnippet>191</a> }
<a href=#192 id=192 data-nosnippet>192</a> ArrowDataType::Int8 =&gt; Arc::new(Int8Vector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#193 id=193 data-nosnippet>193</a> ArrowDataType::Int16 =&gt; Arc::new(Int16Vector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#194 id=194 data-nosnippet>194</a> ArrowDataType::Int32 =&gt; Arc::new(Int32Vector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#195 id=195 data-nosnippet>195</a> ArrowDataType::Int64 =&gt; Arc::new(Int64Vector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#196 id=196 data-nosnippet>196</a> ArrowDataType::UInt8 =&gt; Arc::new(UInt8Vector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#197 id=197 data-nosnippet>197</a> ArrowDataType::UInt16 =&gt; Arc::new(UInt16Vector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#198 id=198 data-nosnippet>198</a> ArrowDataType::UInt32 =&gt; Arc::new(UInt32Vector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#199 id=199 data-nosnippet>199</a> ArrowDataType::UInt64 =&gt; Arc::new(UInt64Vector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#200 id=200 data-nosnippet>200</a> ArrowDataType::Float32 =&gt; Arc::new(Float32Vector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#201 id=201 data-nosnippet>201</a> ArrowDataType::Float64 =&gt; Arc::new(Float64Vector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#202 id=202 data-nosnippet>202</a> ArrowDataType::Utf8 | ArrowDataType::LargeUtf8 | ArrowDataType::Utf8View =&gt; {
<a href=#203 id=203 data-nosnippet>203</a> Arc::new(StringVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#204 id=204 data-nosnippet>204</a> }
<a href=#205 id=205 data-nosnippet>205</a> ArrowDataType::Date32 =&gt; Arc::new(DateVector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#206 id=206 data-nosnippet>206</a> ArrowDataType::List(<span class="kw">_</span>) =&gt; Arc::new(ListVector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#207 id=207 data-nosnippet>207</a> ArrowDataType::Timestamp(unit, <span class="kw">_</span>) =&gt; <span class="kw">match </span>unit {
<a href=#208 id=208 data-nosnippet>208</a> TimeUnit::Second =&gt; Arc::new(TimestampSecondVector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#209 id=209 data-nosnippet>209</a> TimeUnit::Millisecond =&gt; {
<a href=#210 id=210 data-nosnippet>210</a> Arc::new(TimestampMillisecondVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#211 id=211 data-nosnippet>211</a> }
<a href=#212 id=212 data-nosnippet>212</a> TimeUnit::Microsecond =&gt; {
<a href=#213 id=213 data-nosnippet>213</a> Arc::new(TimestampMicrosecondVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#214 id=214 data-nosnippet>214</a> }
<a href=#215 id=215 data-nosnippet>215</a> TimeUnit::Nanosecond =&gt; {
<a href=#216 id=216 data-nosnippet>216</a> Arc::new(TimestampNanosecondVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#217 id=217 data-nosnippet>217</a> }
<a href=#218 id=218 data-nosnippet>218</a> },
<a href=#219 id=219 data-nosnippet>219</a> ArrowDataType::Time32(unit) =&gt; <span class="kw">match </span>unit {
<a href=#220 id=220 data-nosnippet>220</a> TimeUnit::Second =&gt; Arc::new(TimeSecondVector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#221 id=221 data-nosnippet>221</a> TimeUnit::Millisecond =&gt; {
<a href=#222 id=222 data-nosnippet>222</a> Arc::new(TimeMillisecondVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#223 id=223 data-nosnippet>223</a> }
<a href=#224 id=224 data-nosnippet>224</a> <span class="comment">// Arrow use time32 for second/millisecond.
<a href=#225 id=225 data-nosnippet>225</a> </span><span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(
<a href=#226 id=226 data-nosnippet>226</a> <span class="string">"unexpected arrow array datatype: {:?}"</span>,
<a href=#227 id=227 data-nosnippet>227</a> array.as_ref().data_type()
<a href=#228 id=228 data-nosnippet>228</a> ),
<a href=#229 id=229 data-nosnippet>229</a> },
<a href=#230 id=230 data-nosnippet>230</a> ArrowDataType::Time64(unit) =&gt; <span class="kw">match </span>unit {
<a href=#231 id=231 data-nosnippet>231</a> TimeUnit::Microsecond =&gt; {
<a href=#232 id=232 data-nosnippet>232</a> Arc::new(TimeMicrosecondVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#233 id=233 data-nosnippet>233</a> }
<a href=#234 id=234 data-nosnippet>234</a> TimeUnit::Nanosecond =&gt; {
<a href=#235 id=235 data-nosnippet>235</a> Arc::new(TimeNanosecondVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#236 id=236 data-nosnippet>236</a> }
<a href=#237 id=237 data-nosnippet>237</a> <span class="comment">// Arrow use time64 for microsecond/nanosecond.
<a href=#238 id=238 data-nosnippet>238</a> </span><span class="kw">_ </span>=&gt; <span class="macro">unreachable!</span>(
<a href=#239 id=239 data-nosnippet>239</a> <span class="string">"unexpected arrow array datatype: {:?}"</span>,
<a href=#240 id=240 data-nosnippet>240</a> array.as_ref().data_type()
<a href=#241 id=241 data-nosnippet>241</a> ),
<a href=#242 id=242 data-nosnippet>242</a> },
<a href=#243 id=243 data-nosnippet>243</a> ArrowDataType::Interval(unit) =&gt; <span class="kw">match </span>unit {
<a href=#244 id=244 data-nosnippet>244</a> IntervalUnit::YearMonth =&gt; {
<a href=#245 id=245 data-nosnippet>245</a> Arc::new(IntervalYearMonthVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#246 id=246 data-nosnippet>246</a> }
<a href=#247 id=247 data-nosnippet>247</a> IntervalUnit::DayTime =&gt; {
<a href=#248 id=248 data-nosnippet>248</a> Arc::new(IntervalDayTimeVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#249 id=249 data-nosnippet>249</a> }
<a href=#250 id=250 data-nosnippet>250</a> IntervalUnit::MonthDayNano =&gt; {
<a href=#251 id=251 data-nosnippet>251</a> Arc::new(IntervalMonthDayNanoVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#252 id=252 data-nosnippet>252</a> }
<a href=#253 id=253 data-nosnippet>253</a> },
<a href=#254 id=254 data-nosnippet>254</a> ArrowDataType::Duration(unit) =&gt; <span class="kw">match </span>unit {
<a href=#255 id=255 data-nosnippet>255</a> TimeUnit::Second =&gt; Arc::new(DurationSecondVector::try_from_arrow_array(array)<span class="question-mark">?</span>),
<a href=#256 id=256 data-nosnippet>256</a> TimeUnit::Millisecond =&gt; {
<a href=#257 id=257 data-nosnippet>257</a> Arc::new(DurationMillisecondVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#258 id=258 data-nosnippet>258</a> }
<a href=#259 id=259 data-nosnippet>259</a> TimeUnit::Microsecond =&gt; {
<a href=#260 id=260 data-nosnippet>260</a> Arc::new(DurationMicrosecondVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#261 id=261 data-nosnippet>261</a> }
<a href=#262 id=262 data-nosnippet>262</a> TimeUnit::Nanosecond =&gt; {
<a href=#263 id=263 data-nosnippet>263</a> Arc::new(DurationNanosecondVector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#264 id=264 data-nosnippet>264</a> }
<a href=#265 id=265 data-nosnippet>265</a> },
<a href=#266 id=266 data-nosnippet>266</a> ArrowDataType::Decimal128(<span class="kw">_</span>, <span class="kw">_</span>) =&gt; {
<a href=#267 id=267 data-nosnippet>267</a> Arc::new(Decimal128Vector::try_from_arrow_array(array)<span class="question-mark">?</span>)
<a href=#268 id=268 data-nosnippet>268</a> }
<a href=#269 id=269 data-nosnippet>269</a> ArrowDataType::Dictionary(key, value) =&gt; {
<a href=#270 id=270 data-nosnippet>270</a> <span class="macro">macro_rules!</span> handle_dictionary_key_type {
<a href=#271 id=271 data-nosnippet>271</a> (<span class="macro-nonterminal">$key_type</span>:ident) =&gt; {{
<a href=#272 id=272 data-nosnippet>272</a> <span class="kw">let </span>array = array
<a href=#273 id=273 data-nosnippet>273</a> .as_ref()
<a href=#274 id=274 data-nosnippet>274</a> .as_any()
<a href=#275 id=275 data-nosnippet>275</a> .downcast_ref::&lt;DictionaryArray&lt;<span class="macro-nonterminal">$key_type</span>&gt;&gt;()
<a href=#276 id=276 data-nosnippet>276</a> .unwrap(); <span class="comment">// Safety: the type is guarded by match arm condition
<a href=#277 id=277 data-nosnippet>277</a> </span>Arc::new(DictionaryVector::new(
<a href=#278 id=278 data-nosnippet>278</a> array.clone(),
<a href=#279 id=279 data-nosnippet>279</a> ConcreteDataType::try_from(value.as_ref())<span class="question-mark">?</span>,
<a href=#280 id=280 data-nosnippet>280</a> )<span class="question-mark">?</span>)
<a href=#281 id=281 data-nosnippet>281</a> }};
<a href=#282 id=282 data-nosnippet>282</a> }
<a href=#283 id=283 data-nosnippet>283</a>
<a href=#284 id=284 data-nosnippet>284</a> <span class="kw">match </span>key.as_ref() {
<a href=#285 id=285 data-nosnippet>285</a> ArrowDataType::Int8 =&gt; <span class="macro">handle_dictionary_key_type!</span>(Int8Type),
<a href=#286 id=286 data-nosnippet>286</a> ArrowDataType::Int16 =&gt; <span class="macro">handle_dictionary_key_type!</span>(Int16Type),
<a href=#287 id=287 data-nosnippet>287</a> ArrowDataType::Int32 =&gt; <span class="macro">handle_dictionary_key_type!</span>(Int32Type),
<a href=#288 id=288 data-nosnippet>288</a> ArrowDataType::Int64 =&gt; <span class="macro">handle_dictionary_key_type!</span>(Int64Type),
<a href=#289 id=289 data-nosnippet>289</a> ArrowDataType::UInt8 =&gt; <span class="macro">handle_dictionary_key_type!</span>(UInt8Type),
<a href=#290 id=290 data-nosnippet>290</a> ArrowDataType::UInt16 =&gt; <span class="macro">handle_dictionary_key_type!</span>(UInt16Type),
<a href=#291 id=291 data-nosnippet>291</a> ArrowDataType::UInt32 =&gt; <span class="macro">handle_dictionary_key_type!</span>(UInt32Type),
<a href=#292 id=292 data-nosnippet>292</a> ArrowDataType::UInt64 =&gt; <span class="macro">handle_dictionary_key_type!</span>(UInt64Type),
<a href=#293 id=293 data-nosnippet>293</a> <span class="kw">_ </span>=&gt; {
<a href=#294 id=294 data-nosnippet>294</a> <span class="kw">return </span>error::UnsupportedArrowTypeSnafu {
<a href=#295 id=295 data-nosnippet>295</a> arrow_type: array.as_ref().data_type().clone(),
<a href=#296 id=296 data-nosnippet>296</a> }
<a href=#297 id=297 data-nosnippet>297</a> .fail();
<a href=#298 id=298 data-nosnippet>298</a> }
<a href=#299 id=299 data-nosnippet>299</a> }
<a href=#300 id=300 data-nosnippet>300</a> }
<a href=#301 id=301 data-nosnippet>301</a>
<a href=#302 id=302 data-nosnippet>302</a> ArrowDataType::Struct(fields) =&gt; {
<a href=#303 id=303 data-nosnippet>303</a> <span class="kw">let </span>array = array
<a href=#304 id=304 data-nosnippet>304</a> .as_ref()
<a href=#305 id=305 data-nosnippet>305</a> .as_any()
<a href=#306 id=306 data-nosnippet>306</a> .downcast_ref::&lt;StructArray&gt;()
<a href=#307 id=307 data-nosnippet>307</a> .unwrap();
<a href=#308 id=308 data-nosnippet>308</a> Arc::new(StructVector::try_new(
<a href=#309 id=309 data-nosnippet>309</a> StructType::from(fields),
<a href=#310 id=310 data-nosnippet>310</a> array.clone(),
<a href=#311 id=311 data-nosnippet>311</a> )<span class="question-mark">?</span>)
<a href=#312 id=312 data-nosnippet>312</a> }
<a href=#313 id=313 data-nosnippet>313</a> ArrowDataType::Float16
<a href=#314 id=314 data-nosnippet>314</a> | ArrowDataType::LargeList(<span class="kw">_</span>)
<a href=#315 id=315 data-nosnippet>315</a> | ArrowDataType::FixedSizeList(<span class="kw">_</span>, <span class="kw">_</span>)
<a href=#316 id=316 data-nosnippet>316</a> | ArrowDataType::Union(<span class="kw">_</span>, <span class="kw">_</span>)
<a href=#317 id=317 data-nosnippet>317</a> | ArrowDataType::Decimal256(<span class="kw">_</span>, <span class="kw">_</span>)
<a href=#318 id=318 data-nosnippet>318</a> | ArrowDataType::Map(<span class="kw">_</span>, <span class="kw">_</span>)
<a href=#319 id=319 data-nosnippet>319</a> | ArrowDataType::RunEndEncoded(<span class="kw">_</span>, <span class="kw">_</span>)
<a href=#320 id=320 data-nosnippet>320</a> | ArrowDataType::ListView(<span class="kw">_</span>)
<a href=#321 id=321 data-nosnippet>321</a> | ArrowDataType::LargeListView(<span class="kw">_</span>)
<a href=#322 id=322 data-nosnippet>322</a> | ArrowDataType::Date64
<a href=#323 id=323 data-nosnippet>323</a> | ArrowDataType::Decimal32(<span class="kw">_</span>, <span class="kw">_</span>)
<a href=#324 id=324 data-nosnippet>324</a> | ArrowDataType::Decimal64(<span class="kw">_</span>, <span class="kw">_</span>) =&gt; {
<a href=#325 id=325 data-nosnippet>325</a> <span class="kw">return </span>error::UnsupportedArrowTypeSnafu {
<a href=#326 id=326 data-nosnippet>326</a> arrow_type: array.as_ref().data_type().clone(),
<a href=#327 id=327 data-nosnippet>327</a> }
<a href=#328 id=328 data-nosnippet>328</a> .fail();
<a href=#329 id=329 data-nosnippet>329</a> }
<a href=#330 id=330 data-nosnippet>330</a> })
<a href=#331 id=331 data-nosnippet>331</a> }
<a href=#332 id=332 data-nosnippet>332</a>
<a href=#333 id=333 data-nosnippet>333</a> <span class="doccomment">/// Try to cast an vec of values into vector, fail if type is not the same across all values.
<a href=#334 id=334 data-nosnippet>334</a> </span><span class="kw">pub fn </span>try_from_row_into_vector(row: <span class="kw-2">&amp;</span>[Value], dt: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#335 id=335 data-nosnippet>335</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = dt.create_mutable_vector(row.len());
<a href=#336 id=336 data-nosnippet>336</a> <span class="kw">for </span>val <span class="kw">in </span>row {
<a href=#337 id=337 data-nosnippet>337</a> builder.try_push_value_ref(<span class="kw-2">&amp;</span>val.as_value_ref())<span class="question-mark">?</span>;
<a href=#338 id=338 data-nosnippet>338</a> }
<a href=#339 id=339 data-nosnippet>339</a> <span class="kw">let </span>vector = builder.to_vector();
<a href=#340 id=340 data-nosnippet>340</a> <span class="prelude-val">Ok</span>(vector)
<a href=#341 id=341 data-nosnippet>341</a> }
<a href=#342 id=342 data-nosnippet>342</a>
<a href=#343 id=343 data-nosnippet>343</a> <span class="doccomment">/// Try to cast slice of `arrays` to vectors.
<a href=#344 id=344 data-nosnippet>344</a> </span><span class="kw">pub fn </span>try_into_vectors(arrays: <span class="kw-2">&amp;</span>[ArrayRef]) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;VectorRef&gt;&gt; {
<a href=#345 id=345 data-nosnippet>345</a> arrays.iter().map(<span class="self">Self</span>::try_into_vector).collect()
<a href=#346 id=346 data-nosnippet>346</a> }
<a href=#347 id=347 data-nosnippet>347</a>
<a href=#348 id=348 data-nosnippet>348</a> <span class="doccomment">/// Perform SQL like operation on `names` and a scalar `s`.
<a href=#349 id=349 data-nosnippet>349</a> </span><span class="kw">pub fn </span>like_utf8(names: Vec&lt;String&gt;, s: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#350 id=350 data-nosnippet>350</a> <span class="kw">let </span>array = StringArray::from(names);
<a href=#351 id=351 data-nosnippet>351</a>
<a href=#352 id=352 data-nosnippet>352</a> <span class="kw">let </span>s = StringArray::new_scalar(s);
<a href=#353 id=353 data-nosnippet>353</a> <span class="kw">let </span>filter = comparison::like(<span class="kw-2">&amp;</span>array, <span class="kw-2">&amp;</span>s).context(error::ArrowComputeSnafu)<span class="question-mark">?</span>;
<a href=#354 id=354 data-nosnippet>354</a>
<a href=#355 id=355 data-nosnippet>355</a> <span class="kw">let </span>result = compute::filter(<span class="kw-2">&amp;</span>array, <span class="kw-2">&amp;</span>filter).context(error::ArrowComputeSnafu)<span class="question-mark">?</span>;
<a href=#356 id=356 data-nosnippet>356</a> Helper::try_into_vector(result)
<a href=#357 id=357 data-nosnippet>357</a> }
<a href=#358 id=358 data-nosnippet>358</a>
<a href=#359 id=359 data-nosnippet>359</a> <span class="kw">pub fn </span>like_utf8_filter(names: Vec&lt;String&gt;, s: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Result</span>&lt;(VectorRef, BooleanVector)&gt; {
<a href=#360 id=360 data-nosnippet>360</a> <span class="kw">let </span>array = StringArray::from(names);
<a href=#361 id=361 data-nosnippet>361</a> <span class="kw">let </span>s = StringArray::new_scalar(s);
<a href=#362 id=362 data-nosnippet>362</a> <span class="kw">let </span>filter = comparison::like(<span class="kw-2">&amp;</span>array, <span class="kw-2">&amp;</span>s).context(error::ArrowComputeSnafu)<span class="question-mark">?</span>;
<a href=#363 id=363 data-nosnippet>363</a> <span class="kw">let </span>result = compute::filter(<span class="kw-2">&amp;</span>array, <span class="kw-2">&amp;</span>filter).context(error::ArrowComputeSnafu)<span class="question-mark">?</span>;
<a href=#364 id=364 data-nosnippet>364</a> <span class="kw">let </span>vector = Helper::try_into_vector(result)<span class="question-mark">?</span>;
<a href=#365 id=365 data-nosnippet>365</a>
<a href=#366 id=366 data-nosnippet>366</a> <span class="prelude-val">Ok</span>((vector, BooleanVector::from(filter)))
<a href=#367 id=367 data-nosnippet>367</a> }
<a href=#368 id=368 data-nosnippet>368</a>}
<a href=#369 id=369 data-nosnippet>369</a>
<a href=#370 id=370 data-nosnippet>370</a><span class="attr">#[cfg(test)]
<a href=#371 id=371 data-nosnippet>371</a></span><span class="kw">mod </span>tests {
<a href=#372 id=372 data-nosnippet>372</a> <span class="kw">use </span>arrow::array::{
<a href=#373 id=373 data-nosnippet>373</a> ArrayRef, BooleanArray, Date32Array, Float32Array, Float64Array, Int8Array, Int16Array,
<a href=#374 id=374 data-nosnippet>374</a> Int32Array, Int64Array, LargeBinaryArray, ListArray, NullArray, Time32MillisecondArray,
<a href=#375 id=375 data-nosnippet>375</a> Time32SecondArray, Time64MicrosecondArray, Time64NanosecondArray,
<a href=#376 id=376 data-nosnippet>376</a> TimestampMicrosecondArray, TimestampMillisecondArray, TimestampNanosecondArray,
<a href=#377 id=377 data-nosnippet>377</a> TimestampSecondArray, UInt8Array, UInt16Array, UInt32Array, UInt64Array,
<a href=#378 id=378 data-nosnippet>378</a> };
<a href=#379 id=379 data-nosnippet>379</a> <span class="kw">use </span>arrow::buffer::Buffer;
<a href=#380 id=380 data-nosnippet>380</a> <span class="kw">use </span>arrow::datatypes::{Int32Type, IntervalMonthDayNano};
<a href=#381 id=381 data-nosnippet>381</a> <span class="kw">use </span>arrow_array::{
<a href=#382 id=382 data-nosnippet>382</a> BinaryArray, DictionaryArray, FixedSizeBinaryArray, LargeStringArray, StructArray,
<a href=#383 id=383 data-nosnippet>383</a> };
<a href=#384 id=384 data-nosnippet>384</a> <span class="kw">use </span>arrow_schema::{DataType, Field, Fields};
<a href=#385 id=385 data-nosnippet>385</a> <span class="kw">use </span>common_decimal::Decimal128;
<a href=#386 id=386 data-nosnippet>386</a> <span class="kw">use </span>common_time::time::Time;
<a href=#387 id=387 data-nosnippet>387</a> <span class="kw">use </span>common_time::timestamp::TimeUnit;
<a href=#388 id=388 data-nosnippet>388</a> <span class="kw">use </span>common_time::{Date, Duration};
<a href=#389 id=389 data-nosnippet>389</a> <span class="kw">use </span>datafusion_common::scalar::ScalarStructBuilder;
<a href=#390 id=390 data-nosnippet>390</a>
<a href=#391 id=391 data-nosnippet>391</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#392 id=392 data-nosnippet>392</a> <span class="kw">use </span><span class="kw">crate</span>::value::Value;
<a href=#393 id=393 data-nosnippet>393</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::ConcreteDataType;
<a href=#394 id=394 data-nosnippet>394</a>
<a href=#395 id=395 data-nosnippet>395</a> <span class="attr">#[test]
<a href=#396 id=396 data-nosnippet>396</a> </span><span class="kw">fn </span>test_try_into_vectors() {
<a href=#397 id=397 data-nosnippet>397</a> <span class="kw">let </span>arrays: Vec&lt;ArrayRef&gt; = <span class="macro">vec!</span>[
<a href=#398 id=398 data-nosnippet>398</a> Arc::new(Int32Array::from(<span class="macro">vec!</span>[<span class="number">1</span>])),
<a href=#399 id=399 data-nosnippet>399</a> Arc::new(Int32Array::from(<span class="macro">vec!</span>[<span class="number">2</span>])),
<a href=#400 id=400 data-nosnippet>400</a> Arc::new(Int32Array::from(<span class="macro">vec!</span>[<span class="number">3</span>])),
<a href=#401 id=401 data-nosnippet>401</a> ];
<a href=#402 id=402 data-nosnippet>402</a> <span class="kw">let </span>vectors = Helper::try_into_vectors(<span class="kw-2">&amp;</span>arrays).unwrap();
<a href=#403 id=403 data-nosnippet>403</a> vectors.iter().for_each(|v| <span class="macro">assert_eq!</span>(<span class="number">1</span>, v.len()));
<a href=#404 id=404 data-nosnippet>404</a> <span class="macro">assert_eq!</span>(Value::Int32(<span class="number">1</span>), vectors[<span class="number">0</span>].get(<span class="number">0</span>));
<a href=#405 id=405 data-nosnippet>405</a> <span class="macro">assert_eq!</span>(Value::Int32(<span class="number">2</span>), vectors[<span class="number">1</span>].get(<span class="number">0</span>));
<a href=#406 id=406 data-nosnippet>406</a> <span class="macro">assert_eq!</span>(Value::Int32(<span class="number">3</span>), vectors[<span class="number">2</span>].get(<span class="number">0</span>));
<a href=#407 id=407 data-nosnippet>407</a> }
<a href=#408 id=408 data-nosnippet>408</a>
<a href=#409 id=409 data-nosnippet>409</a> <span class="attr">#[test]
<a href=#410 id=410 data-nosnippet>410</a> </span><span class="kw">fn </span>test_try_into_date_vector() {
<a href=#411 id=411 data-nosnippet>411</a> <span class="kw">let </span>vector = DateVector::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">None</span>]);
<a href=#412 id=412 data-nosnippet>412</a> <span class="kw">let </span>arrow_array = vector.to_arrow_array();
<a href=#413 id=413 data-nosnippet>413</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>ArrowDataType::Date32, arrow_array.data_type());
<a href=#414 id=414 data-nosnippet>414</a> <span class="kw">let </span>vector_converted = Helper::try_into_vector(arrow_array).unwrap();
<a href=#415 id=415 data-nosnippet>415</a> <span class="macro">assert_eq!</span>(vector.len(), vector_converted.len());
<a href=#416 id=416 data-nosnippet>416</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..vector_converted.len() {
<a href=#417 id=417 data-nosnippet>417</a> <span class="macro">assert_eq!</span>(vector.get(i), vector_converted.get(i));
<a href=#418 id=418 data-nosnippet>418</a> }
<a href=#419 id=419 data-nosnippet>419</a> }
<a href=#420 id=420 data-nosnippet>420</a>
<a href=#421 id=421 data-nosnippet>421</a> <span class="attr">#[test]
<a href=#422 id=422 data-nosnippet>422</a> </span><span class="kw">fn </span>test_try_from_scalar_date_value() {
<a href=#423 id=423 data-nosnippet>423</a> <span class="kw">let </span>vector = Helper::try_from_scalar_value(ScalarValue::Date32(<span class="prelude-val">Some</span>(<span class="number">42</span>)), <span class="number">3</span>, <span class="prelude-val">None</span>).unwrap();
<a href=#424 id=424 data-nosnippet>424</a> <span class="macro">assert_eq!</span>(ConcreteDataType::date_datatype(), vector.data_type());
<a href=#425 id=425 data-nosnippet>425</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, vector.len());
<a href=#426 id=426 data-nosnippet>426</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..vector.len() {
<a href=#427 id=427 data-nosnippet>427</a> <span class="macro">assert_eq!</span>(Value::Date(Date::new(<span class="number">42</span>)), vector.get(i));
<a href=#428 id=428 data-nosnippet>428</a> }
<a href=#429 id=429 data-nosnippet>429</a> }
<a href=#430 id=430 data-nosnippet>430</a>
<a href=#431 id=431 data-nosnippet>431</a> <span class="attr">#[test]
<a href=#432 id=432 data-nosnippet>432</a> </span><span class="kw">fn </span>test_try_from_scalar_duration_value() {
<a href=#433 id=433 data-nosnippet>433</a> <span class="kw">let </span>vector =
<a href=#434 id=434 data-nosnippet>434</a> Helper::try_from_scalar_value(ScalarValue::DurationSecond(<span class="prelude-val">Some</span>(<span class="number">42</span>)), <span class="number">3</span>, <span class="prelude-val">None</span>).unwrap();
<a href=#435 id=435 data-nosnippet>435</a> <span class="macro">assert_eq!</span>(
<a href=#436 id=436 data-nosnippet>436</a> ConcreteDataType::duration_second_datatype(),
<a href=#437 id=437 data-nosnippet>437</a> vector.data_type()
<a href=#438 id=438 data-nosnippet>438</a> );
<a href=#439 id=439 data-nosnippet>439</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, vector.len());
<a href=#440 id=440 data-nosnippet>440</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..vector.len() {
<a href=#441 id=441 data-nosnippet>441</a> <span class="macro">assert_eq!</span>(
<a href=#442 id=442 data-nosnippet>442</a> Value::Duration(Duration::new(<span class="number">42</span>, TimeUnit::Second)),
<a href=#443 id=443 data-nosnippet>443</a> vector.get(i)
<a href=#444 id=444 data-nosnippet>444</a> );
<a href=#445 id=445 data-nosnippet>445</a> }
<a href=#446 id=446 data-nosnippet>446</a> }
<a href=#447 id=447 data-nosnippet>447</a>
<a href=#448 id=448 data-nosnippet>448</a> <span class="attr">#[test]
<a href=#449 id=449 data-nosnippet>449</a> </span><span class="kw">fn </span>test_try_from_scalar_decimal128_value() {
<a href=#450 id=450 data-nosnippet>450</a> <span class="kw">let </span>vector =
<a href=#451 id=451 data-nosnippet>451</a> Helper::try_from_scalar_value(ScalarValue::Decimal128(<span class="prelude-val">Some</span>(<span class="number">42</span>), <span class="number">3</span>, <span class="number">1</span>), <span class="number">3</span>, <span class="prelude-val">None</span>)
<a href=#452 id=452 data-nosnippet>452</a> .unwrap();
<a href=#453 id=453 data-nosnippet>453</a> <span class="macro">assert_eq!</span>(
<a href=#454 id=454 data-nosnippet>454</a> ConcreteDataType::decimal128_datatype(<span class="number">3</span>, <span class="number">1</span>),
<a href=#455 id=455 data-nosnippet>455</a> vector.data_type()
<a href=#456 id=456 data-nosnippet>456</a> );
<a href=#457 id=457 data-nosnippet>457</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, vector.len());
<a href=#458 id=458 data-nosnippet>458</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..vector.len() {
<a href=#459 id=459 data-nosnippet>459</a> <span class="macro">assert_eq!</span>(Value::Decimal128(Decimal128::new(<span class="number">42</span>, <span class="number">3</span>, <span class="number">1</span>)), vector.get(i));
<a href=#460 id=460 data-nosnippet>460</a> }
<a href=#461 id=461 data-nosnippet>461</a> }
<a href=#462 id=462 data-nosnippet>462</a>
<a href=#463 id=463 data-nosnippet>463</a> <span class="attr">#[test]
<a href=#464 id=464 data-nosnippet>464</a> </span><span class="kw">fn </span>test_try_from_list_value() {
<a href=#465 id=465 data-nosnippet>465</a> <span class="kw">let </span>value = ScalarValue::List(ScalarValue::new_list(
<a href=#466 id=466 data-nosnippet>466</a> <span class="kw-2">&amp;</span>[ScalarValue::Int32(<span class="prelude-val">Some</span>(<span class="number">1</span>)), ScalarValue::Int32(<span class="prelude-val">Some</span>(<span class="number">2</span>))],
<a href=#467 id=467 data-nosnippet>467</a> <span class="kw-2">&amp;</span>ArrowDataType::Int32,
<a href=#468 id=468 data-nosnippet>468</a> <span class="bool-val">true</span>,
<a href=#469 id=469 data-nosnippet>469</a> ));
<a href=#470 id=470 data-nosnippet>470</a> <span class="kw">let </span>vector = Helper::try_from_scalar_value(value, <span class="number">3</span>, <span class="prelude-val">None</span>).unwrap();
<a href=#471 id=471 data-nosnippet>471</a> <span class="macro">assert_eq!</span>(
<a href=#472 id=472 data-nosnippet>472</a> ConcreteDataType::list_datatype(Arc::new(ConcreteDataType::int32_datatype())),
<a href=#473 id=473 data-nosnippet>473</a> vector.data_type()
<a href=#474 id=474 data-nosnippet>474</a> );
<a href=#475 id=475 data-nosnippet>475</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, vector.len());
<a href=#476 id=476 data-nosnippet>476</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..vector.len() {
<a href=#477 id=477 data-nosnippet>477</a> <span class="kw">let </span>v = vector.get(i);
<a href=#478 id=478 data-nosnippet>478</a> <span class="kw">let </span>items = v.as_list().unwrap().unwrap().items();
<a href=#479 id=479 data-nosnippet>479</a> <span class="macro">assert_eq!</span>(<span class="macro">vec!</span>[Value::Int32(<span class="number">1</span>), Value::Int32(<span class="number">2</span>)], items);
<a href=#480 id=480 data-nosnippet>480</a> }
<a href=#481 id=481 data-nosnippet>481</a> }
<a href=#482 id=482 data-nosnippet>482</a>
<a href=#483 id=483 data-nosnippet>483</a> <span class="attr">#[test]
<a href=#484 id=484 data-nosnippet>484</a> </span><span class="kw">fn </span>test_try_from_scalar_value_materializes_values() {
<a href=#485 id=485 data-nosnippet>485</a> <span class="kw">let </span>vector = Helper::try_from_scalar_value(ScalarValue::Int32(<span class="prelude-val">Some</span>(<span class="number">42</span>)), <span class="number">4</span>, <span class="prelude-val">None</span>).unwrap();
<a href=#486 id=486 data-nosnippet>486</a> <span class="macro">assert_eq!</span>(ConcreteDataType::int32_datatype(), vector.data_type());
<a href=#487 id=487 data-nosnippet>487</a> <span class="macro">assert_eq!</span>(<span class="number">4</span>, vector.len());
<a href=#488 id=488 data-nosnippet>488</a> <span class="macro">assert_eq!</span>(<span class="number">0</span>, vector.null_count());
<a href=#489 id=489 data-nosnippet>489</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..vector.len() {
<a href=#490 id=490 data-nosnippet>490</a> <span class="macro">assert_eq!</span>(Value::Int32(<span class="number">42</span>), vector.get(i));
<a href=#491 id=491 data-nosnippet>491</a> }
<a href=#492 id=492 data-nosnippet>492</a>
<a href=#493 id=493 data-nosnippet>493</a> <span class="kw">let </span>empty = Helper::try_from_scalar_value(ScalarValue::Int32(<span class="prelude-val">Some</span>(<span class="number">42</span>)), <span class="number">0</span>, <span class="prelude-val">None</span>).unwrap();
<a href=#494 id=494 data-nosnippet>494</a> <span class="macro">assert_eq!</span>(ConcreteDataType::int32_datatype(), empty.data_type());
<a href=#495 id=495 data-nosnippet>495</a> <span class="macro">assert!</span>(empty.is_empty());
<a href=#496 id=496 data-nosnippet>496</a>
<a href=#497 id=497 data-nosnippet>497</a> <span class="kw">let </span>nulls = Helper::try_from_scalar_value(ScalarValue::Int32(<span class="prelude-val">None</span>), <span class="number">3</span>, <span class="prelude-val">None</span>).unwrap();
<a href=#498 id=498 data-nosnippet>498</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, nulls.len());
<a href=#499 id=499 data-nosnippet>499</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, nulls.null_count());
<a href=#500 id=500 data-nosnippet>500</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..nulls.len() {
<a href=#501 id=501 data-nosnippet>501</a> <span class="macro">assert_eq!</span>(Value::Null, nulls.get(i));
<a href=#502 id=502 data-nosnippet>502</a> }
<a href=#503 id=503 data-nosnippet>503</a> }
<a href=#504 id=504 data-nosnippet>504</a>
<a href=#505 id=505 data-nosnippet>505</a> <span class="attr">#[test]
<a href=#506 id=506 data-nosnippet>506</a> </span><span class="kw">fn </span>test_try_from_scalar_struct_value() {
<a href=#507 id=507 data-nosnippet>507</a> <span class="kw">let </span>fields = Fields::from(<span class="macro">vec!</span>[
<a href=#508 id=508 data-nosnippet>508</a> Field::new(<span class="string">"id"</span>, ArrowDataType::Int32, <span class="bool-val">false</span>),
<a href=#509 id=509 data-nosnippet>509</a> Field::new(<span class="string">"name"</span>, ArrowDataType::Utf8, <span class="bool-val">true</span>),
<a href=#510 id=510 data-nosnippet>510</a> ]);
<a href=#511 id=511 data-nosnippet>511</a> <span class="kw">let </span>value = ScalarValue::Struct(Arc::new(StructArray::new(
<a href=#512 id=512 data-nosnippet>512</a> fields.clone(),
<a href=#513 id=513 data-nosnippet>513</a> <span class="macro">vec!</span>[
<a href=#514 id=514 data-nosnippet>514</a> ScalarValue::Int32(<span class="prelude-val">Some</span>(<span class="number">7</span>)).to_array().unwrap(),
<a href=#515 id=515 data-nosnippet>515</a> ScalarValue::Utf8(<span class="prelude-val">Some</span>(<span class="string">"greptime"</span>.to_string()))
<a href=#516 id=516 data-nosnippet>516</a> .to_array()
<a href=#517 id=517 data-nosnippet>517</a> .unwrap(),
<a href=#518 id=518 data-nosnippet>518</a> ],
<a href=#519 id=519 data-nosnippet>519</a> <span class="prelude-val">None</span>,
<a href=#520 id=520 data-nosnippet>520</a> )));
<a href=#521 id=521 data-nosnippet>521</a>
<a href=#522 id=522 data-nosnippet>522</a> <span class="kw">let </span>vector = Helper::try_from_scalar_value(value, <span class="number">3</span>, <span class="prelude-val">None</span>).unwrap();
<a href=#523 id=523 data-nosnippet>523</a> <span class="macro">assert_eq!</span>(
<a href=#524 id=524 data-nosnippet>524</a> ConcreteDataType::struct_datatype(StructType::from(<span class="kw-2">&amp;</span>fields)),
<a href=#525 id=525 data-nosnippet>525</a> vector.data_type()
<a href=#526 id=526 data-nosnippet>526</a> );
<a href=#527 id=527 data-nosnippet>527</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, vector.len());
<a href=#528 id=528 data-nosnippet>528</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..vector.len() {
<a href=#529 id=529 data-nosnippet>529</a> <span class="kw">let </span>Value::Struct(value) = vector.get(i) <span class="kw">else </span>{
<a href=#530 id=530 data-nosnippet>530</a> <span class="macro">panic!</span>(<span class="string">"expected struct value"</span>);
<a href=#531 id=531 data-nosnippet>531</a> };
<a href=#532 id=532 data-nosnippet>532</a> <span class="macro">assert_eq!</span>(
<a href=#533 id=533 data-nosnippet>533</a> <span class="kw-2">&amp;</span>[Value::Int32(<span class="number">7</span>), Value::String(<span class="string">"greptime"</span>.into())],
<a href=#534 id=534 data-nosnippet>534</a> value.items()
<a href=#535 id=535 data-nosnippet>535</a> );
<a href=#536 id=536 data-nosnippet>536</a> }
<a href=#537 id=537 data-nosnippet>537</a>
<a href=#538 id=538 data-nosnippet>538</a> <span class="kw">let </span>null = ScalarStructBuilder::new_null(fields);
<a href=#539 id=539 data-nosnippet>539</a> <span class="kw">let </span>vector = Helper::try_from_scalar_value(null, <span class="number">2</span>, <span class="prelude-val">None</span>).unwrap();
<a href=#540 id=540 data-nosnippet>540</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, vector.len());
<a href=#541 id=541 data-nosnippet>541</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, vector.null_count());
<a href=#542 id=542 data-nosnippet>542</a> <span class="macro">assert_eq!</span>(Value::Null, vector.get(<span class="number">0</span>));
<a href=#543 id=543 data-nosnippet>543</a> <span class="macro">assert_eq!</span>(Value::Null, vector.get(<span class="number">1</span>));
<a href=#544 id=544 data-nosnippet>544</a> }
<a href=#545 id=545 data-nosnippet>545</a>
<a href=#546 id=546 data-nosnippet>546</a> <span class="attr">#[test]
<a href=#547 id=547 data-nosnippet>547</a> </span><span class="kw">fn </span>test_try_from_scalar_value_normalizes_arrow_types() {
<a href=#548 id=548 data-nosnippet>548</a> <span class="kw">let </span>string = Helper::try_from_scalar_value(
<a href=#549 id=549 data-nosnippet>549</a> ScalarValue::LargeUtf8(<span class="prelude-val">Some</span>(<span class="string">"greptime"</span>.to_string())),
<a href=#550 id=550 data-nosnippet>550</a> <span class="number">2</span>,
<a href=#551 id=551 data-nosnippet>551</a> <span class="prelude-val">None</span>,
<a href=#552 id=552 data-nosnippet>552</a> )
<a href=#553 id=553 data-nosnippet>553</a> .unwrap();
<a href=#554 id=554 data-nosnippet>554</a> <span class="macro">assert_eq!</span>(ConcreteDataType::string_datatype(), string.data_type());
<a href=#555 id=555 data-nosnippet>555</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>ArrowDataType::Utf8, string.to_arrow_array().data_type());
<a href=#556 id=556 data-nosnippet>556</a>
<a href=#557 id=557 data-nosnippet>557</a> <span class="kw">let </span>binary = Helper::try_from_scalar_value(
<a href=#558 id=558 data-nosnippet>558</a> ScalarValue::FixedSizeBinary(<span class="number">2</span>, <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>])),
<a href=#559 id=559 data-nosnippet>559</a> <span class="number">2</span>,
<a href=#560 id=560 data-nosnippet>560</a> <span class="prelude-val">None</span>,
<a href=#561 id=561 data-nosnippet>561</a> )
<a href=#562 id=562 data-nosnippet>562</a> .unwrap();
<a href=#563 id=563 data-nosnippet>563</a> <span class="macro">assert_eq!</span>(ConcreteDataType::binary_datatype(), binary.data_type());
<a href=#564 id=564 data-nosnippet>564</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>ArrowDataType::Binary, binary.to_arrow_array().data_type());
<a href=#565 id=565 data-nosnippet>565</a>
<a href=#566 id=566 data-nosnippet>566</a> <span class="kw">let </span>timestamp = Helper::try_from_scalar_value(
<a href=#567 id=567 data-nosnippet>567</a> ScalarValue::TimestampMillisecond(<span class="prelude-val">Some</span>(<span class="number">42</span>), <span class="prelude-val">Some</span>(<span class="string">"UTC"</span>.into())),
<a href=#568 id=568 data-nosnippet>568</a> <span class="number">2</span>,
<a href=#569 id=569 data-nosnippet>569</a> <span class="prelude-val">None</span>,
<a href=#570 id=570 data-nosnippet>570</a> )
<a href=#571 id=571 data-nosnippet>571</a> .unwrap();
<a href=#572 id=572 data-nosnippet>572</a> <span class="macro">assert_eq!</span>(
<a href=#573 id=573 data-nosnippet>573</a> <span class="kw-2">&amp;</span>ArrowDataType::Timestamp(arrow::datatypes::TimeUnit::Millisecond, <span class="prelude-val">None</span>),
<a href=#574 id=574 data-nosnippet>574</a> timestamp.to_arrow_array().data_type()
<a href=#575 id=575 data-nosnippet>575</a> );
<a href=#576 id=576 data-nosnippet>576</a> }
<a href=#577 id=577 data-nosnippet>577</a>
<a href=#578 id=578 data-nosnippet>578</a> <span class="attr">#[test]
<a href=#579 id=579 data-nosnippet>579</a> </span><span class="kw">fn </span>test_like_utf8() {
<a href=#580 id=580 data-nosnippet>580</a> <span class="kw">fn </span>assert_vector(expected: Vec&lt;<span class="kw-2">&amp;</span>str&gt;, actual: <span class="kw-2">&amp;</span>VectorRef) {
<a href=#581 id=581 data-nosnippet>581</a> <span class="kw">let </span>actual = actual.as_any().downcast_ref::&lt;StringVector&gt;().unwrap();
<a href=#582 id=582 data-nosnippet>582</a> <span class="macro">assert_eq!</span>(<span class="kw-2">*</span>actual, StringVector::from(expected));
<a href=#583 id=583 data-nosnippet>583</a> }
<a href=#584 id=584 data-nosnippet>584</a>
<a href=#585 id=585 data-nosnippet>585</a> <span class="kw">let </span>names: Vec&lt;String&gt; = <span class="macro">vec!</span>[<span class="string">"greptime"</span>, <span class="string">"hello"</span>, <span class="string">"public"</span>, <span class="string">"world"</span>]
<a href=#586 id=586 data-nosnippet>586</a> .into_iter()
<a href=#587 id=587 data-nosnippet>587</a> .map(|x| x.to_string())
<a href=#588 id=588 data-nosnippet>588</a> .collect();
<a href=#589 id=589 data-nosnippet>589</a>
<a href=#590 id=590 data-nosnippet>590</a> <span class="kw">let </span>ret = Helper::like_utf8(names.clone(), <span class="string">"%ll%"</span>).unwrap();
<a href=#591 id=591 data-nosnippet>591</a> assert_vector(<span class="macro">vec!</span>[<span class="string">"hello"</span>], <span class="kw-2">&amp;</span>ret);
<a href=#592 id=592 data-nosnippet>592</a>
<a href=#593 id=593 data-nosnippet>593</a> <span class="kw">let </span>ret = Helper::like_utf8(names.clone(), <span class="string">"%time"</span>).unwrap();
<a href=#594 id=594 data-nosnippet>594</a> assert_vector(<span class="macro">vec!</span>[<span class="string">"greptime"</span>], <span class="kw-2">&amp;</span>ret);
<a href=#595 id=595 data-nosnippet>595</a>
<a href=#596 id=596 data-nosnippet>596</a> <span class="kw">let </span>ret = Helper::like_utf8(names.clone(), <span class="string">"%ld"</span>).unwrap();
<a href=#597 id=597 data-nosnippet>597</a> assert_vector(<span class="macro">vec!</span>[<span class="string">"world"</span>], <span class="kw-2">&amp;</span>ret);
<a href=#598 id=598 data-nosnippet>598</a>
<a href=#599 id=599 data-nosnippet>599</a> <span class="kw">let </span>ret = Helper::like_utf8(names, <span class="string">"%"</span>).unwrap();
<a href=#600 id=600 data-nosnippet>600</a> assert_vector(<span class="macro">vec!</span>[<span class="string">"greptime"</span>, <span class="string">"hello"</span>, <span class="string">"public"</span>, <span class="string">"world"</span>], <span class="kw-2">&amp;</span>ret);
<a href=#601 id=601 data-nosnippet>601</a> }
<a href=#602 id=602 data-nosnippet>602</a>
<a href=#603 id=603 data-nosnippet>603</a> <span class="attr">#[test]
<a href=#604 id=604 data-nosnippet>604</a> </span><span class="kw">fn </span>test_like_utf8_filter() {
<a href=#605 id=605 data-nosnippet>605</a> <span class="kw">fn </span>assert_vector(expected: Vec&lt;<span class="kw-2">&amp;</span>str&gt;, actual: <span class="kw-2">&amp;</span>VectorRef) {
<a href=#606 id=606 data-nosnippet>606</a> <span class="kw">let </span>actual = actual.as_any().downcast_ref::&lt;StringVector&gt;().unwrap();
<a href=#607 id=607 data-nosnippet>607</a> <span class="macro">assert_eq!</span>(<span class="kw-2">*</span>actual, StringVector::from(expected));
<a href=#608 id=608 data-nosnippet>608</a> }
<a href=#609 id=609 data-nosnippet>609</a>
<a href=#610 id=610 data-nosnippet>610</a> <span class="kw">fn </span>assert_filter(array: Vec&lt;String&gt;, s: <span class="kw-2">&amp;</span>str, expected_filter: <span class="kw-2">&amp;</span>BooleanVector) {
<a href=#611 id=611 data-nosnippet>611</a> <span class="kw">let </span>array = StringArray::from(array);
<a href=#612 id=612 data-nosnippet>612</a> <span class="kw">let </span>s = StringArray::new_scalar(s);
<a href=#613 id=613 data-nosnippet>613</a> <span class="kw">let </span>actual_filter = comparison::like(<span class="kw-2">&amp;</span>array, <span class="kw-2">&amp;</span>s).unwrap();
<a href=#614 id=614 data-nosnippet>614</a> <span class="macro">assert_eq!</span>(BooleanVector::from(actual_filter), <span class="kw-2">*</span>expected_filter);
<a href=#615 id=615 data-nosnippet>615</a> }
<a href=#616 id=616 data-nosnippet>616</a>
<a href=#617 id=617 data-nosnippet>617</a> <span class="kw">let </span>names: Vec&lt;String&gt; = <span class="macro">vec!</span>[<span class="string">"greptime"</span>, <span class="string">"timeseries"</span>, <span class="string">"cloud"</span>, <span class="string">"database"</span>]
<a href=#618 id=618 data-nosnippet>618</a> .into_iter()
<a href=#619 id=619 data-nosnippet>619</a> .map(|x| x.to_string())
<a href=#620 id=620 data-nosnippet>620</a> .collect();
<a href=#621 id=621 data-nosnippet>621</a>
<a href=#622 id=622 data-nosnippet>622</a> <span class="kw">let </span>(table, filter) = Helper::like_utf8_filter(names.clone(), <span class="string">"%ti%"</span>).unwrap();
<a href=#623 id=623 data-nosnippet>623</a> assert_vector(<span class="macro">vec!</span>[<span class="string">"greptime"</span>, <span class="string">"timeseries"</span>], <span class="kw-2">&amp;</span>table);
<a href=#624 id=624 data-nosnippet>624</a> assert_filter(names.clone(), <span class="string">"%ti%"</span>, <span class="kw-2">&amp;</span>filter);
<a href=#625 id=625 data-nosnippet>625</a>
<a href=#626 id=626 data-nosnippet>626</a> <span class="kw">let </span>(tables, filter) = Helper::like_utf8_filter(names.clone(), <span class="string">"%lou"</span>).unwrap();
<a href=#627 id=627 data-nosnippet>627</a> assert_vector(<span class="macro">vec!</span>[], <span class="kw-2">&amp;</span>tables);
<a href=#628 id=628 data-nosnippet>628</a> assert_filter(names.clone(), <span class="string">"%lou"</span>, <span class="kw-2">&amp;</span>filter);
<a href=#629 id=629 data-nosnippet>629</a>
<a href=#630 id=630 data-nosnippet>630</a> <span class="kw">let </span>(tables, filter) = Helper::like_utf8_filter(names.clone(), <span class="string">"%d%"</span>).unwrap();
<a href=#631 id=631 data-nosnippet>631</a> assert_vector(<span class="macro">vec!</span>[<span class="string">"cloud"</span>, <span class="string">"database"</span>], <span class="kw-2">&amp;</span>tables);
<a href=#632 id=632 data-nosnippet>632</a> assert_filter(names.clone(), <span class="string">"%d%"</span>, <span class="kw-2">&amp;</span>filter);
<a href=#633 id=633 data-nosnippet>633</a> }
<a href=#634 id=634 data-nosnippet>634</a>
<a href=#635 id=635 data-nosnippet>635</a> <span class="kw">fn </span>check_try_into_vector(array: <span class="kw">impl </span>Array + <span class="lifetime">'static</span>) {
<a href=#636 id=636 data-nosnippet>636</a> <span class="kw">let </span>array: ArrayRef = Arc::new(array);
<a href=#637 id=637 data-nosnippet>637</a> <span class="kw">let </span>vector = Helper::try_into_vector(array.clone()).unwrap();
<a href=#638 id=638 data-nosnippet>638</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>array, <span class="kw-2">&amp;</span>vector.to_arrow_array());
<a href=#639 id=639 data-nosnippet>639</a> }
<a href=#640 id=640 data-nosnippet>640</a>
<a href=#641 id=641 data-nosnippet>641</a> <span class="attr">#[test]
<a href=#642 id=642 data-nosnippet>642</a> </span><span class="kw">fn </span>test_try_into_vector() {
<a href=#643 id=643 data-nosnippet>643</a> check_try_into_vector(NullArray::new(<span class="number">2</span>));
<a href=#644 id=644 data-nosnippet>644</a> check_try_into_vector(BooleanArray::from(<span class="macro">vec!</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>]));
<a href=#645 id=645 data-nosnippet>645</a> check_try_into_vector(Int8Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#646 id=646 data-nosnippet>646</a> check_try_into_vector(Int16Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#647 id=647 data-nosnippet>647</a> check_try_into_vector(Int32Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#648 id=648 data-nosnippet>648</a> check_try_into_vector(Int64Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#649 id=649 data-nosnippet>649</a> check_try_into_vector(UInt8Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#650 id=650 data-nosnippet>650</a> check_try_into_vector(UInt16Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#651 id=651 data-nosnippet>651</a> check_try_into_vector(UInt32Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#652 id=652 data-nosnippet>652</a> check_try_into_vector(UInt64Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#653 id=653 data-nosnippet>653</a> check_try_into_vector(Float32Array::from(<span class="macro">vec!</span>[<span class="number">1.0</span>, <span class="number">2.0</span>, <span class="number">3.0</span>]));
<a href=#654 id=654 data-nosnippet>654</a> check_try_into_vector(Float64Array::from(<span class="macro">vec!</span>[<span class="number">1.0</span>, <span class="number">2.0</span>, <span class="number">3.0</span>]));
<a href=#655 id=655 data-nosnippet>655</a> check_try_into_vector(StringArray::from(<span class="macro">vec!</span>[<span class="string">"hello"</span>, <span class="string">"world"</span>]));
<a href=#656 id=656 data-nosnippet>656</a> check_try_into_vector(Date32Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#657 id=657 data-nosnippet>657</a> <span class="kw">let </span>data = <span class="macro">vec!</span>[<span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">6</span>), <span class="prelude-val">Some</span>(<span class="number">7</span>)])];
<a href=#658 id=658 data-nosnippet>658</a> <span class="kw">let </span>list_array = ListArray::from_iter_primitive::&lt;Int32Type, <span class="kw">_</span>, <span class="kw">_</span>&gt;(data);
<a href=#659 id=659 data-nosnippet>659</a> check_try_into_vector(list_array);
<a href=#660 id=660 data-nosnippet>660</a> check_try_into_vector(TimestampSecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#661 id=661 data-nosnippet>661</a> check_try_into_vector(TimestampMillisecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#662 id=662 data-nosnippet>662</a> check_try_into_vector(TimestampMicrosecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#663 id=663 data-nosnippet>663</a> check_try_into_vector(TimestampNanosecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#664 id=664 data-nosnippet>664</a> check_try_into_vector(Time32SecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#665 id=665 data-nosnippet>665</a> check_try_into_vector(Time32MillisecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#666 id=666 data-nosnippet>666</a> check_try_into_vector(Time64MicrosecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#667 id=667 data-nosnippet>667</a> check_try_into_vector(Time64NanosecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#668 id=668 data-nosnippet>668</a>
<a href=#669 id=669 data-nosnippet>669</a> <span class="comment">// Test dictionary arrays with different key types
<a href=#670 id=670 data-nosnippet>670</a> </span><span class="kw">let </span>values = StringArray::from_iter_values([<span class="string">"a"</span>, <span class="string">"b"</span>, <span class="string">"c"</span>]);
<a href=#671 id=671 data-nosnippet>671</a>
<a href=#672 id=672 data-nosnippet>672</a> <span class="comment">// Test Int8 keys
<a href=#673 id=673 data-nosnippet>673</a> </span><span class="kw">let </span>keys = Int8Array::from_iter_values([<span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>]);
<a href=#674 id=674 data-nosnippet>674</a> <span class="kw">let </span>array: ArrayRef =
<a href=#675 id=675 data-nosnippet>675</a> Arc::new(DictionaryArray::try_new(keys, Arc::new(values.clone())).unwrap());
<a href=#676 id=676 data-nosnippet>676</a> Helper::try_into_vector(array).unwrap();
<a href=#677 id=677 data-nosnippet>677</a>
<a href=#678 id=678 data-nosnippet>678</a> <span class="comment">// Test Int16 keys
<a href=#679 id=679 data-nosnippet>679</a> </span><span class="kw">let </span>keys = Int16Array::from_iter_values([<span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>]);
<a href=#680 id=680 data-nosnippet>680</a> <span class="kw">let </span>array: ArrayRef =
<a href=#681 id=681 data-nosnippet>681</a> Arc::new(DictionaryArray::try_new(keys, Arc::new(values.clone())).unwrap());
<a href=#682 id=682 data-nosnippet>682</a> Helper::try_into_vector(array).unwrap();
<a href=#683 id=683 data-nosnippet>683</a>
<a href=#684 id=684 data-nosnippet>684</a> <span class="comment">// Test Int32 keys
<a href=#685 id=685 data-nosnippet>685</a> </span><span class="kw">let </span>keys = Int32Array::from_iter_values([<span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>]);
<a href=#686 id=686 data-nosnippet>686</a> <span class="kw">let </span>array: ArrayRef =
<a href=#687 id=687 data-nosnippet>687</a> Arc::new(DictionaryArray::try_new(keys, Arc::new(values.clone())).unwrap());
<a href=#688 id=688 data-nosnippet>688</a> Helper::try_into_vector(array).unwrap();
<a href=#689 id=689 data-nosnippet>689</a>
<a href=#690 id=690 data-nosnippet>690</a> <span class="comment">// Test Int64 keys
<a href=#691 id=691 data-nosnippet>691</a> </span><span class="kw">let </span>keys = Int64Array::from_iter_values([<span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>]);
<a href=#692 id=692 data-nosnippet>692</a> <span class="kw">let </span>array: ArrayRef =
<a href=#693 id=693 data-nosnippet>693</a> Arc::new(DictionaryArray::try_new(keys, Arc::new(values.clone())).unwrap());
<a href=#694 id=694 data-nosnippet>694</a> Helper::try_into_vector(array).unwrap();
<a href=#695 id=695 data-nosnippet>695</a>
<a href=#696 id=696 data-nosnippet>696</a> <span class="comment">// Test UInt8 keys
<a href=#697 id=697 data-nosnippet>697</a> </span><span class="kw">let </span>keys = UInt8Array::from_iter_values([<span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>]);
<a href=#698 id=698 data-nosnippet>698</a> <span class="kw">let </span>array: ArrayRef =
<a href=#699 id=699 data-nosnippet>699</a> Arc::new(DictionaryArray::try_new(keys, Arc::new(values.clone())).unwrap());
<a href=#700 id=700 data-nosnippet>700</a> Helper::try_into_vector(array).unwrap();
<a href=#701 id=701 data-nosnippet>701</a>
<a href=#702 id=702 data-nosnippet>702</a> <span class="comment">// Test UInt16 keys
<a href=#703 id=703 data-nosnippet>703</a> </span><span class="kw">let </span>keys = UInt16Array::from_iter_values([<span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>]);
<a href=#704 id=704 data-nosnippet>704</a> <span class="kw">let </span>array: ArrayRef =
<a href=#705 id=705 data-nosnippet>705</a> Arc::new(DictionaryArray::try_new(keys, Arc::new(values.clone())).unwrap());
<a href=#706 id=706 data-nosnippet>706</a> Helper::try_into_vector(array).unwrap();
<a href=#707 id=707 data-nosnippet>707</a>
<a href=#708 id=708 data-nosnippet>708</a> <span class="comment">// Test UInt32 keys
<a href=#709 id=709 data-nosnippet>709</a> </span><span class="kw">let </span>keys = UInt32Array::from_iter_values([<span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>]);
<a href=#710 id=710 data-nosnippet>710</a> <span class="kw">let </span>array: ArrayRef =
<a href=#711 id=711 data-nosnippet>711</a> Arc::new(DictionaryArray::try_new(keys, Arc::new(values.clone())).unwrap());
<a href=#712 id=712 data-nosnippet>712</a> Helper::try_into_vector(array).unwrap();
<a href=#713 id=713 data-nosnippet>713</a>
<a href=#714 id=714 data-nosnippet>714</a> <span class="comment">// Test UInt64 keys
<a href=#715 id=715 data-nosnippet>715</a> </span><span class="kw">let </span>keys = UInt64Array::from_iter_values([<span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>]);
<a href=#716 id=716 data-nosnippet>716</a> <span class="kw">let </span>array: ArrayRef = Arc::new(DictionaryArray::try_new(keys, Arc::new(values)).unwrap());
<a href=#717 id=717 data-nosnippet>717</a> Helper::try_into_vector(array).unwrap();
<a href=#718 id=718 data-nosnippet>718</a> }
<a href=#719 id=719 data-nosnippet>719</a>
<a href=#720 id=720 data-nosnippet>720</a> <span class="attr">#[test]
<a href=#721 id=721 data-nosnippet>721</a> </span><span class="kw">fn </span>test_try_binary_array_into_vector() {
<a href=#722 id=722 data-nosnippet>722</a> <span class="kw">let </span>input_vec: Vec&lt;<span class="kw-2">&amp;</span>[u8]&gt; = <span class="macro">vec!</span>[<span class="string">"hello"</span>.as_bytes(), <span class="string">"world"</span>.as_bytes()];
<a href=#723 id=723 data-nosnippet>723</a> <span class="kw">let </span>assertion_vector = BinaryVector::from(input_vec.clone());
<a href=#724 id=724 data-nosnippet>724</a>
<a href=#725 id=725 data-nosnippet>725</a> <span class="kw">let </span>input_arrays: Vec&lt;ArrayRef&gt; = <span class="macro">vec!</span>[
<a href=#726 id=726 data-nosnippet>726</a> Arc::new(LargeBinaryArray::from(input_vec.clone())) <span class="kw">as </span>ArrayRef,
<a href=#727 id=727 data-nosnippet>727</a> Arc::new(BinaryArray::from(input_vec.clone())) <span class="kw">as </span>ArrayRef,
<a href=#728 id=728 data-nosnippet>728</a> Arc::new(FixedSizeBinaryArray::new(
<a href=#729 id=729 data-nosnippet>729</a> <span class="number">5</span>,
<a href=#730 id=730 data-nosnippet>730</a> Buffer::from_vec(<span class="string">"helloworld"</span>.as_bytes().to_vec()),
<a href=#731 id=731 data-nosnippet>731</a> <span class="prelude-val">None</span>,
<a href=#732 id=732 data-nosnippet>732</a> )) <span class="kw">as </span>ArrayRef,
<a href=#733 id=733 data-nosnippet>733</a> ];
<a href=#734 id=734 data-nosnippet>734</a>
<a href=#735 id=735 data-nosnippet>735</a> <span class="kw">for </span>input_array <span class="kw">in </span>input_arrays {
<a href=#736 id=736 data-nosnippet>736</a> <span class="kw">let </span>vector = Helper::try_into_vector(input_array).unwrap();
<a href=#737 id=737 data-nosnippet>737</a>
<a href=#738 id=738 data-nosnippet>738</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, vector.len());
<a href=#739 id=739 data-nosnippet>739</a> <span class="macro">assert_eq!</span>(<span class="number">0</span>, vector.null_count());
<a href=#740 id=740 data-nosnippet>740</a>
<a href=#741 id=741 data-nosnippet>741</a> <span class="kw">let </span>output_arrow_array: ArrayRef = vector.to_arrow_array();
<a href=#742 id=742 data-nosnippet>742</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>DataType::Binary, output_arrow_array.data_type());
<a href=#743 id=743 data-nosnippet>743</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>assertion_vector.to_arrow_array(), <span class="kw-2">&amp;</span>output_arrow_array);
<a href=#744 id=744 data-nosnippet>744</a> }
<a href=#745 id=745 data-nosnippet>745</a> }
<a href=#746 id=746 data-nosnippet>746</a>
<a href=#747 id=747 data-nosnippet>747</a> <span class="attr">#[test]
<a href=#748 id=748 data-nosnippet>748</a> </span><span class="kw">fn </span>test_large_string_array_into_vector() {
<a href=#749 id=749 data-nosnippet>749</a> <span class="kw">let </span>input_vec = <span class="macro">vec!</span>[<span class="string">"a"</span>, <span class="string">"b"</span>];
<a href=#750 id=750 data-nosnippet>750</a> <span class="kw">let </span>assertion_array = LargeStringArray::from(input_vec.clone());
<a href=#751 id=751 data-nosnippet>751</a>
<a href=#752 id=752 data-nosnippet>752</a> <span class="kw">let </span>large_string_array: ArrayRef = Arc::new(LargeStringArray::from(input_vec));
<a href=#753 id=753 data-nosnippet>753</a> <span class="kw">let </span>vector = Helper::try_into_vector(large_string_array).unwrap();
<a href=#754 id=754 data-nosnippet>754</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, vector.len());
<a href=#755 id=755 data-nosnippet>755</a> <span class="macro">assert_eq!</span>(<span class="number">0</span>, vector.null_count());
<a href=#756 id=756 data-nosnippet>756</a>
<a href=#757 id=757 data-nosnippet>757</a> <span class="kw">let </span>output_arrow_array: LargeStringArray = vector
<a href=#758 id=758 data-nosnippet>758</a> .to_arrow_array()
<a href=#759 id=759 data-nosnippet>759</a> .as_any()
<a href=#760 id=760 data-nosnippet>760</a> .downcast_ref::&lt;LargeStringArray&gt;()
<a href=#761 id=761 data-nosnippet>761</a> .unwrap()
<a href=#762 id=762 data-nosnippet>762</a> .clone();
<a href=#763 id=763 data-nosnippet>763</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>assertion_array, <span class="kw-2">&amp;</span>output_arrow_array);
<a href=#764 id=764 data-nosnippet>764</a> }
<a href=#765 id=765 data-nosnippet>765</a>
<a href=#766 id=766 data-nosnippet>766</a> <span class="attr">#[test]
<a href=#767 id=767 data-nosnippet>767</a> </span><span class="kw">fn </span>test_try_from_scalar_time_value() {
<a href=#768 id=768 data-nosnippet>768</a> <span class="kw">let </span>vector =
<a href=#769 id=769 data-nosnippet>769</a> Helper::try_from_scalar_value(ScalarValue::Time32Second(<span class="prelude-val">Some</span>(<span class="number">42</span>)), <span class="number">3</span>, <span class="prelude-val">None</span>).unwrap();
<a href=#770 id=770 data-nosnippet>770</a> <span class="macro">assert_eq!</span>(ConcreteDataType::time_second_datatype(), vector.data_type());
<a href=#771 id=771 data-nosnippet>771</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, vector.len());
<a href=#772 id=772 data-nosnippet>772</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..vector.len() {
<a href=#773 id=773 data-nosnippet>773</a> <span class="macro">assert_eq!</span>(Value::Time(Time::new_second(<span class="number">42</span>)), vector.get(i));
<a href=#774 id=774 data-nosnippet>774</a> }
<a href=#775 id=775 data-nosnippet>775</a> }
<a href=#776 id=776 data-nosnippet>776</a>
<a href=#777 id=777 data-nosnippet>777</a> <span class="attr">#[test]
<a href=#778 id=778 data-nosnippet>778</a> </span><span class="kw">fn </span>test_try_from_scalar_interval_value() {
<a href=#779 id=779 data-nosnippet>779</a> <span class="kw">let </span>vector = Helper::try_from_scalar_value(
<a href=#780 id=780 data-nosnippet>780</a> ScalarValue::IntervalMonthDayNano(<span class="prelude-val">Some</span>(IntervalMonthDayNano::new(<span class="number">1</span>, <span class="number">1</span>, <span class="number">2000</span>))),
<a href=#781 id=781 data-nosnippet>781</a> <span class="number">3</span>,
<a href=#782 id=782 data-nosnippet>782</a> <span class="prelude-val">None</span>,
<a href=#783 id=783 data-nosnippet>783</a> )
<a href=#784 id=784 data-nosnippet>784</a> .unwrap();
<a href=#785 id=785 data-nosnippet>785</a>
<a href=#786 id=786 data-nosnippet>786</a> <span class="macro">assert_eq!</span>(
<a href=#787 id=787 data-nosnippet>787</a> ConcreteDataType::interval_month_day_nano_datatype(),
<a href=#788 id=788 data-nosnippet>788</a> vector.data_type()
<a href=#789 id=789 data-nosnippet>789</a> );
<a href=#790 id=790 data-nosnippet>790</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, vector.len());
<a href=#791 id=791 data-nosnippet>791</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..vector.len() {
<a href=#792 id=792 data-nosnippet>792</a> <span class="macro">assert_eq!</span>(
<a href=#793 id=793 data-nosnippet>793</a> Value::IntervalMonthDayNano(IntervalMonthDayNano::new(<span class="number">1</span>, <span class="number">1</span>, <span class="number">2000</span>).into()),
<a href=#794 id=794 data-nosnippet>794</a> vector.get(i)
<a href=#795 id=795 data-nosnippet>795</a> );
<a href=#796 id=796 data-nosnippet>796</a> }
<a href=#797 id=797 data-nosnippet>797</a> }
<a href=#798 id=798 data-nosnippet>798</a>
<a href=#799 id=799 data-nosnippet>799</a> <span class="kw">fn </span>check_try_from_row_to_vector(row: Vec&lt;Value&gt;, dt: <span class="kw-2">&amp;</span>ConcreteDataType) {
<a href=#800 id=800 data-nosnippet>800</a> <span class="kw">let </span>vector = Helper::try_from_row_into_vector(<span class="kw-2">&amp;</span>row, dt).unwrap();
<a href=#801 id=801 data-nosnippet>801</a> <span class="kw">for </span>(i, item) <span class="kw">in </span>row.iter().enumerate().take(vector.len()) {
<a href=#802 id=802 data-nosnippet>802</a> <span class="macro">assert_eq!</span>(<span class="kw-2">*</span>item, vector.get(i));
<a href=#803 id=803 data-nosnippet>803</a> }
<a href=#804 id=804 data-nosnippet>804</a> }
<a href=#805 id=805 data-nosnippet>805</a>
<a href=#806 id=806 data-nosnippet>806</a> <span class="kw">fn </span>check_into_and_from(array: <span class="kw">impl </span>Array + <span class="lifetime">'static</span>) {
<a href=#807 id=807 data-nosnippet>807</a> <span class="kw">let </span>array: ArrayRef = Arc::new(array);
<a href=#808 id=808 data-nosnippet>808</a> <span class="kw">let </span>vector = Helper::try_into_vector(array.clone()).unwrap();
<a href=#809 id=809 data-nosnippet>809</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>array, <span class="kw-2">&amp;</span>vector.to_arrow_array());
<a href=#810 id=810 data-nosnippet>810</a> <span class="kw">let </span>row: Vec&lt;Value&gt; = (<span class="number">0</span>..array.len()).map(|i| vector.get(i)).collect();
<a href=#811 id=811 data-nosnippet>811</a> <span class="kw">let </span>dt = vector.data_type();
<a href=#812 id=812 data-nosnippet>812</a> check_try_from_row_to_vector(row, <span class="kw-2">&amp;</span>dt);
<a href=#813 id=813 data-nosnippet>813</a> }
<a href=#814 id=814 data-nosnippet>814</a>
<a href=#815 id=815 data-nosnippet>815</a> <span class="attr">#[test]
<a href=#816 id=816 data-nosnippet>816</a> </span><span class="kw">fn </span>test_try_from_row_to_vector() {
<a href=#817 id=817 data-nosnippet>817</a> check_into_and_from(NullArray::new(<span class="number">2</span>));
<a href=#818 id=818 data-nosnippet>818</a> check_into_and_from(BooleanArray::from(<span class="macro">vec!</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>]));
<a href=#819 id=819 data-nosnippet>819</a> check_into_and_from(Int8Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#820 id=820 data-nosnippet>820</a> check_into_and_from(Int16Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#821 id=821 data-nosnippet>821</a> check_into_and_from(Int32Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#822 id=822 data-nosnippet>822</a> check_into_and_from(Int64Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#823 id=823 data-nosnippet>823</a> check_into_and_from(UInt8Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#824 id=824 data-nosnippet>824</a> check_into_and_from(UInt16Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#825 id=825 data-nosnippet>825</a> check_into_and_from(UInt32Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#826 id=826 data-nosnippet>826</a> check_into_and_from(UInt64Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#827 id=827 data-nosnippet>827</a> check_into_and_from(Float32Array::from(<span class="macro">vec!</span>[<span class="number">1.0</span>, <span class="number">2.0</span>, <span class="number">3.0</span>]));
<a href=#828 id=828 data-nosnippet>828</a> check_into_and_from(Float64Array::from(<span class="macro">vec!</span>[<span class="number">1.0</span>, <span class="number">2.0</span>, <span class="number">3.0</span>]));
<a href=#829 id=829 data-nosnippet>829</a> check_into_and_from(StringArray::from(<span class="macro">vec!</span>[<span class="string">"hello"</span>, <span class="string">"world"</span>]));
<a href=#830 id=830 data-nosnippet>830</a> check_into_and_from(Date32Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#831 id=831 data-nosnippet>831</a>
<a href=#832 id=832 data-nosnippet>832</a> check_into_and_from(TimestampSecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#833 id=833 data-nosnippet>833</a> check_into_and_from(TimestampMillisecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#834 id=834 data-nosnippet>834</a> check_into_and_from(TimestampMicrosecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#835 id=835 data-nosnippet>835</a> check_into_and_from(TimestampNanosecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#836 id=836 data-nosnippet>836</a> check_into_and_from(Time32SecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#837 id=837 data-nosnippet>837</a> check_into_and_from(Time32MillisecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#838 id=838 data-nosnippet>838</a> check_into_and_from(Time64MicrosecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#839 id=839 data-nosnippet>839</a> check_into_and_from(Time64NanosecondArray::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#840 id=840 data-nosnippet>840</a> }
<a href=#841 id=841 data-nosnippet>841</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/interval.rs`."><title>interval.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>interval.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span><span class="kw">crate</span>::types::{IntervalDayTimeType, IntervalMonthDayNanoType, IntervalYearMonthType};
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{PrimitiveVector, PrimitiveVectorBuilder};
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">pub type </span>IntervalYearMonthVector = PrimitiveVector&lt;IntervalYearMonthType&gt;;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">pub type </span>IntervalYearMonthVectorBuilder = PrimitiveVectorBuilder&lt;IntervalYearMonthType&gt;;
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">pub type </span>IntervalMonthDayNanoVector = PrimitiveVector&lt;IntervalMonthDayNanoType&gt;;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">pub type </span>IntervalMonthDayNanoVectorBuilder = PrimitiveVectorBuilder&lt;IntervalMonthDayNanoType&gt;;
<a href=#23 id=23 data-nosnippet>23</a>
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">pub type </span>IntervalDayTimeVector = PrimitiveVector&lt;IntervalDayTimeType&gt;;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">pub type </span>IntervalDayTimeVectorBuilder = PrimitiveVectorBuilder&lt;IntervalDayTimeType&gt;;
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/json.rs`."><title>json.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>json.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">pub mod </span>array;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>builder;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">pub mod </span>variant;
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">pub use </span>builder::json2_physical_data_type;
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/json/array.rs`."><title>array.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/json/</div>array.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::sync::Arc;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>arrow::compute::{can_cast_types, cast};
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>arrow_array::cast::AsArray;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>arrow_array::types::{
<a href=#20 id=20 data-nosnippet>20</a> Float32Type, Float64Type, Int8Type, Int16Type, Int32Type, Int64Type, UInt8Type, UInt16Type,
<a href=#21 id=21 data-nosnippet>21</a> UInt32Type, UInt64Type,
<a href=#22 id=22 data-nosnippet>22</a>};
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>arrow_array::{Array, ArrayRef, GenericListArray, StructArray, new_null_array};
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>arrow_schema::{DataType, Field};
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span>serde_json::Value;
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span>snafu::{OptionExt, ResultExt};
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span><span class="kw">crate</span>::arrow_array::{binary_array_value, string_array_value};
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::data_type::{ConcreteDataType, DataType <span class="kw">as _</span>};
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::error::{
<a href=#31 id=31 data-nosnippet>31</a> AlignJsonArraySnafu, ArrowComputeSnafu, InvalidJsonSnafu, InvalidJsonbSnafu, <span class="prelude-ty">Result</span>,
<a href=#32 id=32 data-nosnippet>32</a>};
<a href=#33 id=33 data-nosnippet>33</a><span class="kw">use </span><span class="kw">crate</span>::extension::json::{JSON2_REMAINDER_FIELD_NAME, json2_remainder_field};
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">use </span><span class="kw">crate</span>::json::value::decode_json_variant;
<a href=#35 id=35 data-nosnippet>35</a><span class="kw">use </span><span class="kw">crate</span>::json::{JsonSettings, TypeHintMismatchPolicy, coerce_json_value_to_type};
<a href=#36 id=36 data-nosnippet>36</a><span class="kw">use </span><span class="kw">crate</span>::vectors::MutableVector;
<a href=#37 id=37 data-nosnippet>37</a><span class="kw">use </span><span class="kw">crate</span>::vectors::json::builder::{JsonVectorBuilder, json2_physical_data_type};
<a href=#38 id=38 data-nosnippet>38</a><span class="kw">use </span><span class="kw">crate</span>::vectors::json::variant::variant_to_json_values;
<a href=#39 id=39 data-nosnippet>39</a>
<a href=#40 id=40 data-nosnippet>40</a><span class="kw">pub struct </span>JsonArray&lt;<span class="lifetime">'a</span>&gt; {
<a href=#41 id=41 data-nosnippet>41</a> inner: <span class="kw-2">&amp;</span><span class="lifetime">'a </span>ArrayRef,
<a href=#42 id=42 data-nosnippet>42</a>}
<a href=#43 id=43 data-nosnippet>43</a>
<a href=#44 id=44 data-nosnippet>44</a><span class="kw">impl </span>JsonArray&lt;<span class="lifetime">'_</span>&gt; {
<a href=#45 id=45 data-nosnippet>45</a> <span class="doccomment">/// Try to get the value (as a [Value]) at the index `i`.
<a href=#46 id=46 data-nosnippet>46</a> </span><span class="kw">pub fn </span>try_get_value(<span class="kw-2">&amp;</span><span class="self">self</span>, i: usize) -&gt; <span class="prelude-ty">Result</span>&lt;Value&gt; {
<a href=#47 id=47 data-nosnippet>47</a> <span class="kw">let </span>array = <span class="self">self</span>.inner;
<a href=#48 id=48 data-nosnippet>48</a> <span class="kw">if </span>array.is_null(i) {
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(Value::Null);
<a href=#50 id=50 data-nosnippet>50</a> }
<a href=#51 id=51 data-nosnippet>51</a>
<a href=#52 id=52 data-nosnippet>52</a> <span class="kw">let </span>value = <span class="kw">match </span>array.data_type() {
<a href=#53 id=53 data-nosnippet>53</a> DataType::Null =&gt; Value::Null,
<a href=#54 id=54 data-nosnippet>54</a> DataType::Boolean =&gt; Value::Bool(array.as_boolean().value(i)),
<a href=#55 id=55 data-nosnippet>55</a> DataType::Int8 =&gt; Value::from(array.as_primitive::&lt;Int8Type&gt;().value(i)),
<a href=#56 id=56 data-nosnippet>56</a> DataType::Int16 =&gt; Value::from(array.as_primitive::&lt;Int16Type&gt;().value(i)),
<a href=#57 id=57 data-nosnippet>57</a> DataType::Int32 =&gt; Value::from(array.as_primitive::&lt;Int32Type&gt;().value(i)),
<a href=#58 id=58 data-nosnippet>58</a> DataType::Int64 =&gt; Value::from(array.as_primitive::&lt;Int64Type&gt;().value(i)),
<a href=#59 id=59 data-nosnippet>59</a> DataType::UInt8 =&gt; Value::from(array.as_primitive::&lt;UInt8Type&gt;().value(i)),
<a href=#60 id=60 data-nosnippet>60</a> DataType::UInt16 =&gt; Value::from(array.as_primitive::&lt;UInt16Type&gt;().value(i)),
<a href=#61 id=61 data-nosnippet>61</a> DataType::UInt32 =&gt; Value::from(array.as_primitive::&lt;UInt32Type&gt;().value(i)),
<a href=#62 id=62 data-nosnippet>62</a> DataType::UInt64 =&gt; Value::from(array.as_primitive::&lt;UInt64Type&gt;().value(i)),
<a href=#63 id=63 data-nosnippet>63</a> DataType::Float32 =&gt; Value::from(array.as_primitive::&lt;Float32Type&gt;().value(i)),
<a href=#64 id=64 data-nosnippet>64</a> DataType::Float64 =&gt; Value::from(array.as_primitive::&lt;Float64Type&gt;().value(i)),
<a href=#65 id=65 data-nosnippet>65</a> DataType::Utf8 | DataType::LargeUtf8 | DataType::Utf8View =&gt; {
<a href=#66 id=66 data-nosnippet>66</a> Value::String(string_array_value(array, i).to_string())
<a href=#67 id=67 data-nosnippet>67</a> }
<a href=#68 id=68 data-nosnippet>68</a> DataType::Binary | DataType::LargeBinary | DataType::BinaryView =&gt; {
<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">let </span>bytes = binary_array_value(array, i);
<a href=#70 id=70 data-nosnippet>70</a> decode_json_variant(bytes).map_err(|error| InvalidJsonbSnafu { error }.build())<span class="question-mark">?
<a href=#71 id=71 data-nosnippet>71</a> </span>}
<a href=#72 id=72 data-nosnippet>72</a> DataType::Struct(<span class="kw">_</span>) =&gt; {
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">let </span>structs = array.as_struct();
<a href=#74 id=74 data-nosnippet>74</a> <span class="kw">let </span>object = structs
<a href=#75 id=75 data-nosnippet>75</a> .fields()
<a href=#76 id=76 data-nosnippet>76</a> .iter()
<a href=#77 id=77 data-nosnippet>77</a> .zip(structs.columns())
<a href=#78 id=78 data-nosnippet>78</a> .map(|(field, column)| {
<a href=#79 id=79 data-nosnippet>79</a> JsonArray::from(column)
<a href=#80 id=80 data-nosnippet>80</a> .try_get_value(i)
<a href=#81 id=81 data-nosnippet>81</a> .map(|v| (field.name().clone(), v))
<a href=#82 id=82 data-nosnippet>82</a> })
<a href=#83 id=83 data-nosnippet>83</a> .collect::&lt;<span class="prelude-ty">Result</span>&lt;<span class="kw">_</span>&gt;&gt;()<span class="question-mark">?</span>;
<a href=#84 id=84 data-nosnippet>84</a> Value::Object(object)
<a href=#85 id=85 data-nosnippet>85</a> }
<a href=#86 id=86 data-nosnippet>86</a> DataType::List(<span class="kw">_</span>) =&gt; {
<a href=#87 id=87 data-nosnippet>87</a> <span class="kw">let </span>lists = array.as_list::&lt;i32&gt;();
<a href=#88 id=88 data-nosnippet>88</a> <span class="kw">let </span>list = lists.value(i);
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">let </span>list = JsonArray::from(<span class="kw-2">&amp;</span>list);
<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">let </span><span class="kw-2">mut </span>values = Vec::with_capacity(list.inner.len());
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..list.inner.len() {
<a href=#92 id=92 data-nosnippet>92</a> values.push(list.try_get_value(i)<span class="question-mark">?</span>);
<a href=#93 id=93 data-nosnippet>93</a> }
<a href=#94 id=94 data-nosnippet>94</a> Value::Array(values)
<a href=#95 id=95 data-nosnippet>95</a> }
<a href=#96 id=96 data-nosnippet>96</a> t =&gt; {
<a href=#97 id=97 data-nosnippet>97</a> <span class="kw">return </span>InvalidJsonSnafu {
<a href=#98 id=98 data-nosnippet>98</a> value: <span class="macro">format!</span>(<span class="string">"unknown JSON type {t}"</span>),
<a href=#99 id=99 data-nosnippet>99</a> }
<a href=#100 id=100 data-nosnippet>100</a> .fail();
<a href=#101 id=101 data-nosnippet>101</a> }
<a href=#102 id=102 data-nosnippet>102</a> };
<a href=#103 id=103 data-nosnippet>103</a> <span class="prelude-val">Ok</span>(value)
<a href=#104 id=104 data-nosnippet>104</a> }
<a href=#105 id=105 data-nosnippet>105</a>
<a href=#106 id=106 data-nosnippet>106</a> <span class="doccomment">/// Projects a physical JSON2 array to a logical query type.
<a href=#107 id=107 data-nosnippet>107</a> ///
<a href=#108 id=108 data-nosnippet>108</a> /// TODO(LFC) Supersede `project_to_v2` to `project_to`.
<a href=#109 id=109 data-nosnippet>109</a> </span><span class="kw">pub fn </span>project_to_v2(<span class="kw-2">&amp;</span><span class="self">self</span>, field: <span class="kw-2">&amp;</span>Field, target: <span class="kw-2">&amp;</span>DataType) -&gt; <span class="prelude-ty">Result</span>&lt;ArrayRef&gt; {
<a href=#110 id=110 data-nosnippet>110</a> <span class="kw">if </span>json2_remainder_field(field)<span class="question-mark">?</span>.is_some() {
<a href=#111 id=111 data-nosnippet>111</a> project_json_values(<span class="self">self</span>.json2_values()<span class="question-mark">?</span>, target)
<a href=#112 id=112 data-nosnippet>112</a> } <span class="kw">else </span>{
<a href=#113 id=113 data-nosnippet>113</a> <span class="self">self</span>.project_to(target)
<a href=#114 id=114 data-nosnippet>114</a> }
<a href=#115 id=115 data-nosnippet>115</a> }
<a href=#116 id=116 data-nosnippet>116</a>
<a href=#117 id=117 data-nosnippet>117</a> <span class="doccomment">/// Rewrites a JSON2 array from the current physical layout into the specified
<a href=#118 id=118 data-nosnippet>118</a> /// v2 physical layout.
<a href=#119 id=119 data-nosnippet>119</a> </span><span class="kw">pub fn </span>rewrite_to_v2(
<a href=#120 id=120 data-nosnippet>120</a> <span class="kw-2">&amp;</span><span class="self">self</span>,
<a href=#121 id=121 data-nosnippet>121</a> field: <span class="kw-2">&amp;</span>Field,
<a href=#122 id=122 data-nosnippet>122</a> logical_settings: <span class="kw-2">&amp;</span>JsonSettings,
<a href=#123 id=123 data-nosnippet>123</a> target_layout: <span class="kw-2">&amp;</span>JsonSettings,
<a href=#124 id=124 data-nosnippet>124</a> ) -&gt; <span class="prelude-ty">Result</span>&lt;ArrayRef&gt; {
<a href=#125 id=125 data-nosnippet>125</a> <span class="self">self</span>.rewrite_to_v2_with_type_hint_mismatch_policy(
<a href=#126 id=126 data-nosnippet>126</a> field,
<a href=#127 id=127 data-nosnippet>127</a> logical_settings,
<a href=#128 id=128 data-nosnippet>128</a> target_layout,
<a href=#129 id=129 data-nosnippet>129</a> TypeHintMismatchPolicy::Reject,
<a href=#130 id=130 data-nosnippet>130</a> )
<a href=#131 id=131 data-nosnippet>131</a> }
<a href=#132 id=132 data-nosnippet>132</a>
<a href=#133 id=133 data-nosnippet>133</a> <span class="doccomment">/// Rewrites a JSON2 array to the specified v2 physical layout using the
<a href=#134 id=134 data-nosnippet>134</a> /// given type hint mismatch policy.
<a href=#135 id=135 data-nosnippet>135</a> </span><span class="kw">pub fn </span>rewrite_to_v2_with_type_hint_mismatch_policy(
<a href=#136 id=136 data-nosnippet>136</a> <span class="kw-2">&amp;</span><span class="self">self</span>,
<a href=#137 id=137 data-nosnippet>137</a> field: <span class="kw-2">&amp;</span>Field,
<a href=#138 id=138 data-nosnippet>138</a> logical_settings: <span class="kw-2">&amp;</span>JsonSettings,
<a href=#139 id=139 data-nosnippet>139</a> target_layout: <span class="kw-2">&amp;</span>JsonSettings,
<a href=#140 id=140 data-nosnippet>140</a> policy: TypeHintMismatchPolicy,
<a href=#141 id=141 data-nosnippet>141</a> ) -&gt; <span class="prelude-ty">Result</span>&lt;ArrayRef&gt; {
<a href=#142 id=142 data-nosnippet>142</a> <span class="kw">let </span>is_v2 = json2_remainder_field(field)<span class="question-mark">?</span>.is_some();
<a href=#143 id=143 data-nosnippet>143</a> <span class="kw">if </span>is_v2 &amp;&amp; <span class="self">self</span>.inner.data_type() == <span class="kw-2">&amp;</span>json2_physical_data_type(target_layout) {
<a href=#144 id=144 data-nosnippet>144</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="self">self</span>.inner.clone());
<a href=#145 id=145 data-nosnippet>145</a> }
<a href=#146 id=146 data-nosnippet>146</a>
<a href=#147 id=147 data-nosnippet>147</a> <span class="kw">let </span>values = <span class="kw">if </span>is_v2 {
<a href=#148 id=148 data-nosnippet>148</a> <span class="self">self</span>.json2_values()<span class="question-mark">?
<a href=#149 id=149 data-nosnippet>149</a> </span>} <span class="kw">else </span>{
<a href=#150 id=150 data-nosnippet>150</a> (<span class="number">0</span>..<span class="self">self</span>.inner.len())
<a href=#151 id=151 data-nosnippet>151</a> .map(|i| <span class="self">self</span>.try_get_value(i))
<a href=#152 id=152 data-nosnippet>152</a> .collect::&lt;<span class="prelude-ty">Result</span>&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;&gt;()<span class="question-mark">?
<a href=#153 id=153 data-nosnippet>153</a> </span>};
<a href=#154 id=154 data-nosnippet>154</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = JsonVectorBuilder::with_settings(target_layout, values.len());
<a href=#155 id=155 data-nosnippet>155</a> <span class="kw">for </span>value <span class="kw">in </span>values {
<a href=#156 id=156 data-nosnippet>156</a> <span class="kw">if </span>value.is_null() {
<a href=#157 id=157 data-nosnippet>157</a> builder.push_null();
<a href=#158 id=158 data-nosnippet>158</a> } <span class="kw">else </span>{
<a href=#159 id=159 data-nosnippet>159</a> <span class="kw">let </span>value =
<a href=#160 id=160 data-nosnippet>160</a> logical_settings.encode_with_type_hint_mismatch_policy(value, policy)<span class="question-mark">?</span>;
<a href=#161 id=161 data-nosnippet>161</a> builder.try_push_value_ref(<span class="kw-2">&amp;</span>value.as_value_ref())<span class="question-mark">?</span>;
<a href=#162 id=162 data-nosnippet>162</a> }
<a href=#163 id=163 data-nosnippet>163</a> }
<a href=#164 id=164 data-nosnippet>164</a> <span class="prelude-val">Ok</span>(builder.to_vector().to_arrow_array())
<a href=#165 id=165 data-nosnippet>165</a> }
<a href=#166 id=166 data-nosnippet>166</a>
<a href=#167 id=167 data-nosnippet>167</a> <span class="kw">fn </span>json2_values(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;Value&gt;&gt; {
<a href=#168 id=168 data-nosnippet>168</a> <span class="kw">let </span>structs = <span class="self">self</span>.inner.as_struct_opt().context(AlignJsonArraySnafu {
<a href=#169 id=169 data-nosnippet>169</a> reason: <span class="string">"JSON2 layout v2 root array must be a struct"</span>,
<a href=#170 id=170 data-nosnippet>170</a> })<span class="question-mark">?</span>;
<a href=#171 id=171 data-nosnippet>171</a> <span class="kw">let </span>remainder = structs.column_by_name(JSON2_REMAINDER_FIELD_NAME);
<a href=#172 id=172 data-nosnippet>172</a> <span class="kw">let </span><span class="kw-2">mut </span>remainders = <span class="kw">if let </span><span class="prelude-val">Some</span>(remainder) = remainder {
<a href=#173 id=173 data-nosnippet>173</a> variant_to_json_values(remainder)<span class="question-mark">?
<a href=#174 id=174 data-nosnippet>174</a> </span>} <span class="kw">else </span>{
<a href=#175 id=175 data-nosnippet>175</a> <span class="macro">vec!</span>[<span class="prelude-val">None</span>; structs.len()]
<a href=#176 id=176 data-nosnippet>176</a> };
<a href=#177 id=177 data-nosnippet>177</a> <span class="kw">let </span><span class="kw-2">mut </span>values = Vec::with_capacity(structs.len());
<a href=#178 id=178 data-nosnippet>178</a> <span class="kw">let </span><span class="kw-2">mut </span>path = Vec::new();
<a href=#179 id=179 data-nosnippet>179</a>
<a href=#180 id=180 data-nosnippet>180</a> <span class="kw">for </span>(i, remainder) <span class="kw">in </span>remainders.iter_mut().enumerate() {
<a href=#181 id=181 data-nosnippet>181</a> <span class="kw">if </span>structs.is_null(i) {
<a href=#182 id=182 data-nosnippet>182</a> values.push(Value::Null);
<a href=#183 id=183 data-nosnippet>183</a> <span class="kw">continue</span>;
<a href=#184 id=184 data-nosnippet>184</a> }
<a href=#185 id=185 data-nosnippet>185</a>
<a href=#186 id=186 data-nosnippet>186</a> <span class="kw">let </span><span class="kw-2">mut </span>object = <span class="kw">match </span>remainder.take() {
<a href=#187 id=187 data-nosnippet>187</a> <span class="prelude-val">None </span>=&gt; serde_json::Map::new(),
<a href=#188 id=188 data-nosnippet>188</a> <span class="prelude-val">Some</span>(Value::Object(object)) =&gt; object,
<a href=#189 id=189 data-nosnippet>189</a> <span class="prelude-val">Some</span>(value) =&gt; {
<a href=#190 id=190 data-nosnippet>190</a> <span class="kw">return </span>InvalidJsonSnafu {
<a href=#191 id=191 data-nosnippet>191</a> value: <span class="macro">format!</span>(<span class="string">"JSON2 layout v2 remainder must be an object, got {value}"</span>),
<a href=#192 id=192 data-nosnippet>192</a> }
<a href=#193 id=193 data-nosnippet>193</a> .fail();
<a href=#194 id=194 data-nosnippet>194</a> }
<a href=#195 id=195 data-nosnippet>195</a> };
<a href=#196 id=196 data-nosnippet>196</a>
<a href=#197 id=197 data-nosnippet>197</a> <span class="kw">for </span>(child, column) <span class="kw">in </span>structs.fields().iter().zip(structs.columns()) {
<a href=#198 id=198 data-nosnippet>198</a> <span class="kw">if </span>child.name() == JSON2_REMAINDER_FIELD_NAME {
<a href=#199 id=199 data-nosnippet>199</a> <span class="kw">continue</span>;
<a href=#200 id=200 data-nosnippet>200</a> }
<a href=#201 id=201 data-nosnippet>201</a> <span class="kw">let </span><span class="kw-2">mut </span>value = JsonArray::from(column).try_get_value(i)<span class="question-mark">?</span>;
<a href=#202 id=202 data-nosnippet>202</a> <span class="comment">// Arrow child nulls cannot distinguish a missing path from an explicit JSON
<a href=#203 id=203 data-nosnippet>203</a> // null. Builders preserve explicit null presence in the remainder, so nulls
<a href=#204 id=204 data-nosnippet>204</a> // from the explicit branch must be discarded before merging both branches.
<a href=#205 id=205 data-nosnippet>205</a> </span>remove_null_object_fields(<span class="kw-2">&amp;mut </span>value);
<a href=#206 id=206 data-nosnippet>206</a> <span class="kw">if </span>value.is_null() {
<a href=#207 id=207 data-nosnippet>207</a> <span class="kw">continue</span>;
<a href=#208 id=208 data-nosnippet>208</a> }
<a href=#209 id=209 data-nosnippet>209</a> merge_explicit_value(<span class="kw-2">&amp;mut </span>object, child.name().clone(), value, <span class="kw-2">&amp;mut </span>path)<span class="question-mark">?</span>;
<a href=#210 id=210 data-nosnippet>210</a> }
<a href=#211 id=211 data-nosnippet>211</a> values.push(Value::Object(object));
<a href=#212 id=212 data-nosnippet>212</a> }
<a href=#213 id=213 data-nosnippet>213</a>
<a href=#214 id=214 data-nosnippet>214</a> <span class="prelude-val">Ok</span>(values)
<a href=#215 id=215 data-nosnippet>215</a> }
<a href=#216 id=216 data-nosnippet>216</a>
<a href=#217 id=217 data-nosnippet>217</a> <span class="doccomment">/// Projects this JSON array to `target` for query evaluation.
<a href=#218 id=218 data-nosnippet>218</a> ///
<a href=#219 id=219 data-nosnippet>219</a> /// Unlike [`Self::widen_to`], projection tolerates lossy conversions:
<a href=#220 id=220 data-nosnippet>220</a> /// - source fields not present in `target` are discarded;
<a href=#221 id=221 data-nosnippet>221</a> /// - fields missing from the source are filled with typed null arrays;
<a href=#222 id=222 data-nosnippet>222</a> /// - values incompatible with the target type become NULL.
<a href=#223 id=223 data-nosnippet>223</a> ///
<a href=#224 id=224 data-nosnippet>224</a> /// Projection is applied recursively to structs and lists. Input nulls
<a href=#225 id=225 data-nosnippet>225</a> /// remain NULL. Errors unrelated to type incompatibility, such as invalid
<a href=#226 id=226 data-nosnippet>226</a> /// JSONB, are returned.
<a href=#227 id=227 data-nosnippet>227</a> </span><span class="kw">pub fn </span>project_to(<span class="kw-2">&amp;</span><span class="self">self</span>, target: <span class="kw-2">&amp;</span>DataType) -&gt; <span class="prelude-ty">Result</span>&lt;ArrayRef&gt; {
<a href=#228 id=228 data-nosnippet>228</a> <span class="kw">if </span><span class="self">self</span>.inner.data_type() == target {
<a href=#229 id=229 data-nosnippet>229</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(<span class="self">self</span>.inner.clone());
<a href=#230 id=230 data-nosnippet>230</a> }
<a href=#231 id=231 data-nosnippet>231</a>
<a href=#232 id=232 data-nosnippet>232</a> <span class="kw">match </span>(<span class="self">self</span>.inner.data_type(), target) {
<a href=#233 id=233 data-nosnippet>233</a> (DataType::Struct(<span class="kw">_</span>), DataType::Struct(target_fields)) =&gt; {
<a href=#234 id=234 data-nosnippet>234</a> <span class="kw">let </span>struct_array = <span class="self">self</span>.inner.as_struct();
<a href=#235 id=235 data-nosnippet>235</a> <span class="kw">let </span><span class="kw-2">mut </span>columns = Vec::with_capacity(target_fields.len());
<a href=#236 id=236 data-nosnippet>236</a> <span class="kw">for </span>target_field <span class="kw">in </span>target_fields {
<a href=#237 id=237 data-nosnippet>237</a> <span class="kw">let </span>column = struct_array
<a href=#238 id=238 data-nosnippet>238</a> .column_by_name(target_field.name())
<a href=#239 id=239 data-nosnippet>239</a> .map(|column| JsonArray::from(column).project_to(target_field.data_type()))
<a href=#240 id=240 data-nosnippet>240</a> .transpose()<span class="question-mark">?
<a href=#241 id=241 data-nosnippet>241</a> </span>.unwrap_or_else(|| {
<a href=#242 id=242 data-nosnippet>242</a> new_null_array(target_field.data_type(), <span class="self">self</span>.inner.len())
<a href=#243 id=243 data-nosnippet>243</a> });
<a href=#244 id=244 data-nosnippet>244</a> columns.push(column);
<a href=#245 id=245 data-nosnippet>245</a> }
<a href=#246 id=246 data-nosnippet>246</a> <span class="kw">let </span>projected = StructArray::try_new_with_length(
<a href=#247 id=247 data-nosnippet>247</a> target_fields.clone(),
<a href=#248 id=248 data-nosnippet>248</a> columns,
<a href=#249 id=249 data-nosnippet>249</a> struct_array.nulls().cloned(),
<a href=#250 id=250 data-nosnippet>250</a> struct_array.len(),
<a href=#251 id=251 data-nosnippet>251</a> )
<a href=#252 id=252 data-nosnippet>252</a> .context(ArrowComputeSnafu)<span class="question-mark">?</span>;
<a href=#253 id=253 data-nosnippet>253</a> <span class="prelude-val">Ok</span>(Arc::new(projected))
<a href=#254 id=254 data-nosnippet>254</a> }
<a href=#255 id=255 data-nosnippet>255</a> (DataType::List(<span class="kw">_</span>), DataType::List(target_item)) =&gt; {
<a href=#256 id=256 data-nosnippet>256</a> <span class="kw">let </span>list_array = <span class="self">self</span>.inner.as_list::&lt;i32&gt;();
<a href=#257 id=257 data-nosnippet>257</a> <span class="kw">let </span>item_projected =
<a href=#258 id=258 data-nosnippet>258</a> JsonArray::from(list_array.values()).project_to(target_item.data_type())<span class="question-mark">?</span>;
<a href=#259 id=259 data-nosnippet>259</a> <span class="prelude-val">Ok</span>(Arc::new(
<a href=#260 id=260 data-nosnippet>260</a> GenericListArray::&lt;i32&gt;::try_new(
<a href=#261 id=261 data-nosnippet>261</a> target_item.clone(),
<a href=#262 id=262 data-nosnippet>262</a> list_array.offsets().clone(),
<a href=#263 id=263 data-nosnippet>263</a> item_projected,
<a href=#264 id=264 data-nosnippet>264</a> list_array.nulls().cloned(),
<a href=#265 id=265 data-nosnippet>265</a> )
<a href=#266 id=266 data-nosnippet>266</a> .context(ArrowComputeSnafu)<span class="question-mark">?</span>,
<a href=#267 id=267 data-nosnippet>267</a> ))
<a href=#268 id=268 data-nosnippet>268</a> }
<a href=#269 id=269 data-nosnippet>269</a> <span class="kw">_ </span>=&gt; <span class="self">self</span>.project_values_to(target),
<a href=#270 id=270 data-nosnippet>270</a> }
<a href=#271 id=271 data-nosnippet>271</a> }
<a href=#272 id=272 data-nosnippet>272</a>
<a href=#273 id=273 data-nosnippet>273</a> <span class="kw">fn </span>project_values_to(<span class="kw-2">&amp;</span><span class="self">self</span>, to_type: <span class="kw-2">&amp;</span>DataType) -&gt; <span class="prelude-ty">Result</span>&lt;ArrayRef&gt; {
<a href=#274 id=274 data-nosnippet>274</a> <span class="kw">let </span>from_type = <span class="self">self</span>.inner.data_type();
<a href=#275 id=275 data-nosnippet>275</a> <span class="kw">if </span>can_fast_cast_types(from_type, to_type) {
<a href=#276 id=276 data-nosnippet>276</a> <span class="kw">return </span>cast(<span class="self">self</span>.inner.as_ref(), to_type).context(ArrowComputeSnafu);
<a href=#277 id=277 data-nosnippet>277</a> }
<a href=#278 id=278 data-nosnippet>278</a>
<a href=#279 id=279 data-nosnippet>279</a> <span class="kw">let </span>values = (<span class="number">0</span>..<span class="self">self</span>.inner.len())
<a href=#280 id=280 data-nosnippet>280</a> .map(|i| <span class="self">self</span>.try_get_value(i))
<a href=#281 id=281 data-nosnippet>281</a> .collect::&lt;<span class="prelude-ty">Result</span>&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;&gt;()<span class="question-mark">?</span>;
<a href=#282 id=282 data-nosnippet>282</a> project_json_values(values, to_type)
<a href=#283 id=283 data-nosnippet>283</a> }
<a href=#284 id=284 data-nosnippet>284</a>}
<a href=#285 id=285 data-nosnippet>285</a>
<a href=#286 id=286 data-nosnippet>286</a><span class="kw">fn </span>merge_explicit_value(
<a href=#287 id=287 data-nosnippet>287</a> remainder: <span class="kw-2">&amp;mut </span>serde_json::Map&lt;String, Value&gt;,
<a href=#288 id=288 data-nosnippet>288</a> key: String,
<a href=#289 id=289 data-nosnippet>289</a> explicit: Value,
<a href=#290 id=290 data-nosnippet>290</a> path: <span class="kw-2">&amp;mut </span>Vec&lt;String&gt;,
<a href=#291 id=291 data-nosnippet>291</a>) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#292 id=292 data-nosnippet>292</a> <span class="kw">let </span><span class="prelude-val">Some</span>(existing) = remainder.get_mut(<span class="kw-2">&amp;</span>key) <span class="kw">else </span>{
<a href=#293 id=293 data-nosnippet>293</a> remainder.insert(key, explicit);
<a href=#294 id=294 data-nosnippet>294</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(());
<a href=#295 id=295 data-nosnippet>295</a> };
<a href=#296 id=296 data-nosnippet>296</a> path.push(key);
<a href=#297 id=297 data-nosnippet>297</a>
<a href=#298 id=298 data-nosnippet>298</a> <span class="kw">let </span>(Value::Object(remainder), Value::Object(explicit)) = (existing, explicit) <span class="kw">else </span>{
<a href=#299 id=299 data-nosnippet>299</a> <span class="kw">return </span>InvalidJsonSnafu {
<a href=#300 id=300 data-nosnippet>300</a> value: <span class="macro">format!</span>(
<a href=#301 id=301 data-nosnippet>301</a> <span class="string">"cannot merge '{}' in explicit fields and remainder: not both objects"</span>,
<a href=#302 id=302 data-nosnippet>302</a> path.join(<span class="string">"."</span>),
<a href=#303 id=303 data-nosnippet>303</a> ),
<a href=#304 id=304 data-nosnippet>304</a> }
<a href=#305 id=305 data-nosnippet>305</a> .fail();
<a href=#306 id=306 data-nosnippet>306</a> };
<a href=#307 id=307 data-nosnippet>307</a> <span class="kw">for </span>(key, value) <span class="kw">in </span>explicit {
<a href=#308 id=308 data-nosnippet>308</a> merge_explicit_value(remainder, key, value, path)<span class="question-mark">?</span>;
<a href=#309 id=309 data-nosnippet>309</a> }
<a href=#310 id=310 data-nosnippet>310</a> path.pop();
<a href=#311 id=311 data-nosnippet>311</a> <span class="prelude-val">Ok</span>(())
<a href=#312 id=312 data-nosnippet>312</a>}
<a href=#313 id=313 data-nosnippet>313</a>
<a href=#314 id=314 data-nosnippet>314</a><span class="kw">fn </span>remove_null_object_fields(value: <span class="kw-2">&amp;mut </span>Value) {
<a href=#315 id=315 data-nosnippet>315</a> <span class="kw">let </span>Value::Object(object) = value <span class="kw">else </span>{
<a href=#316 id=316 data-nosnippet>316</a> <span class="kw">return</span>;
<a href=#317 id=317 data-nosnippet>317</a> };
<a href=#318 id=318 data-nosnippet>318</a> object.retain(|<span class="kw">_</span>, value| {
<a href=#319 id=319 data-nosnippet>319</a> remove_null_object_fields(value);
<a href=#320 id=320 data-nosnippet>320</a> !value.is_null()
<a href=#321 id=321 data-nosnippet>321</a> });
<a href=#322 id=322 data-nosnippet>322</a>}
<a href=#323 id=323 data-nosnippet>323</a>
<a href=#324 id=324 data-nosnippet>324</a><span class="doccomment">/// Returns whether Arrow can cast between the types without JSON-aware projection.
<a href=#325 id=325 data-nosnippet>325</a>/// Binary and nested types require JSONB decoding or recursive projection.
<a href=#326 id=326 data-nosnippet>326</a></span><span class="kw">fn </span>can_fast_cast_types(from_type: <span class="kw-2">&amp;</span>DataType, to_type: <span class="kw-2">&amp;</span>DataType) -&gt; bool {
<a href=#327 id=327 data-nosnippet>327</a> <span class="kw">let </span>is_scalar = |data_type: <span class="kw-2">&amp;</span>DataType| {
<a href=#328 id=328 data-nosnippet>328</a> data_type.is_numeric() || data_type.is_string() || data_type == <span class="kw-2">&amp;</span>DataType::Boolean
<a href=#329 id=329 data-nosnippet>329</a> };
<a href=#330 id=330 data-nosnippet>330</a>
<a href=#331 id=331 data-nosnippet>331</a> is_scalar(from_type) &amp;&amp; is_scalar(to_type) &amp;&amp; can_cast_types(from_type, to_type)
<a href=#332 id=332 data-nosnippet>332</a>}
<a href=#333 id=333 data-nosnippet>333</a>
<a href=#334 id=334 data-nosnippet>334</a><span class="kw">fn </span>project_json_values(values: Vec&lt;Value&gt;, to_type: <span class="kw-2">&amp;</span>DataType) -&gt; <span class="prelude-ty">Result</span>&lt;ArrayRef&gt; {
<a href=#335 id=335 data-nosnippet>335</a> <span class="kw">let </span>concrete_type = ConcreteDataType::from_arrow_type(to_type);
<a href=#336 id=336 data-nosnippet>336</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = concrete_type.create_mutable_vector(values.len());
<a href=#337 id=337 data-nosnippet>337</a> <span class="kw">for </span>value <span class="kw">in </span>values {
<a href=#338 id=338 data-nosnippet>338</a> <span class="kw">let </span>value = coerce_json_value_to_type(value, <span class="kw-2">&amp;</span>concrete_type);
<a href=#339 id=339 data-nosnippet>339</a> builder.try_push_value_ref(<span class="kw-2">&amp;</span>value.as_value_ref())<span class="question-mark">?</span>;
<a href=#340 id=340 data-nosnippet>340</a> }
<a href=#341 id=341 data-nosnippet>341</a> <span class="prelude-val">Ok</span>(builder.to_vector().to_arrow_array())
<a href=#342 id=342 data-nosnippet>342</a>}
<a href=#343 id=343 data-nosnippet>343</a>
<a href=#344 id=344 data-nosnippet>344</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; From&lt;<span class="kw-2">&amp;</span><span class="lifetime">'a </span>ArrayRef&gt; <span class="kw">for </span>JsonArray&lt;<span class="lifetime">'a</span>&gt; {
<a href=#345 id=345 data-nosnippet>345</a> <span class="kw">fn </span>from(inner: <span class="kw-2">&amp;</span><span class="lifetime">'a </span>ArrayRef) -&gt; <span class="self">Self </span>{
<a href=#346 id=346 data-nosnippet>346</a> <span class="self">Self </span>{ inner }
<a href=#347 id=347 data-nosnippet>347</a> }
<a href=#348 id=348 data-nosnippet>348</a>}
<a href=#349 id=349 data-nosnippet>349</a>
<a href=#350 id=350 data-nosnippet>350</a><span class="attr">#[cfg(test)]
<a href=#351 id=351 data-nosnippet>351</a></span><span class="kw">mod </span>test {
<a href=#352 id=352 data-nosnippet>352</a> <span class="kw">use </span>std::sync::Arc;
<a href=#353 id=353 data-nosnippet>353</a>
<a href=#354 id=354 data-nosnippet>354</a> <span class="kw">use </span>arrow_array::types::Int64Type;
<a href=#355 id=355 data-nosnippet>355</a> <span class="kw">use </span>arrow_array::{
<a href=#356 id=356 data-nosnippet>356</a> BinaryArray, BooleanArray, Float32Array, Float64Array, Int8Array, Int16Array, Int32Array,
<a href=#357 id=357 data-nosnippet>357</a> Int64Array, ListArray, StringArray, UInt8Array, UInt16Array, UInt32Array, UInt64Array,
<a href=#358 id=358 data-nosnippet>358</a> };
<a href=#359 id=359 data-nosnippet>359</a> <span class="kw">use </span>arrow_schema::{Field, Fields};
<a href=#360 id=360 data-nosnippet>360</a> <span class="kw">use </span>serde_json::json;
<a href=#361 id=361 data-nosnippet>361</a>
<a href=#362 id=362 data-nosnippet>362</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#363 id=363 data-nosnippet>363</a> <span class="kw">use </span><span class="kw">crate</span>::extension::json::{Json2ExtensionType, JsonMetadata};
<a href=#364 id=364 data-nosnippet>364</a> <span class="kw">use </span><span class="kw">crate</span>::json::{JsonSettings, JsonTypeHint};
<a href=#365 id=365 data-nosnippet>365</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::json::variant::{json_values_to_variant, variant_field};
<a href=#366 id=366 data-nosnippet>366</a>
<a href=#367 id=367 data-nosnippet>367</a> <span class="attr">#[test]
<a href=#368 id=368 data-nosnippet>368</a> </span><span class="kw">fn </span>test_try_get_value() -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#369 id=369 data-nosnippet>369</a> <span class="kw">let </span>nulls = new_null_array(<span class="kw-2">&amp;</span>DataType::Null, <span class="number">2</span>);
<a href=#370 id=370 data-nosnippet>370</a> <span class="macro">assert_eq!</span>(JsonArray::from(<span class="kw-2">&amp;</span>nulls).try_get_value(<span class="number">0</span>)<span class="question-mark">?</span>, Value::Null);
<a href=#371 id=371 data-nosnippet>371</a>
<a href=#372 id=372 data-nosnippet>372</a> <span class="kw">let </span>bools: ArrayRef = Arc::new(BooleanArray::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="bool-val">true</span>), <span class="prelude-val">None</span>]));
<a href=#373 id=373 data-nosnippet>373</a> <span class="macro">assert_eq!</span>(JsonArray::from(<span class="kw-2">&amp;</span>bools).try_get_value(<span class="number">0</span>)<span class="question-mark">?</span>, <span class="macro">json!</span>(<span class="bool-val">true</span>));
<a href=#374 id=374 data-nosnippet>374</a> <span class="macro">assert_eq!</span>(JsonArray::from(<span class="kw-2">&amp;</span>bools).try_get_value(<span class="number">1</span>)<span class="question-mark">?</span>, Value::Null);
<a href=#375 id=375 data-nosnippet>375</a>
<a href=#376 id=376 data-nosnippet>376</a> <span class="kw">let </span>ints: ArrayRef = Arc::new(Int64Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(-<span class="number">7</span>), <span class="prelude-val">None</span>]));
<a href=#377 id=377 data-nosnippet>377</a> <span class="macro">assert_eq!</span>(JsonArray::from(<span class="kw-2">&amp;</span>ints).try_get_value(<span class="number">0</span>)<span class="question-mark">?</span>, <span class="macro">json!</span>(-<span class="number">7</span>));
<a href=#378 id=378 data-nosnippet>378</a> <span class="macro">assert_eq!</span>(JsonArray::from(<span class="kw-2">&amp;</span>ints).try_get_value(<span class="number">1</span>)<span class="question-mark">?</span>, Value::Null);
<a href=#379 id=379 data-nosnippet>379</a>
<a href=#380 id=380 data-nosnippet>380</a> <span class="macro">macro_rules!</span> assert_number {
<a href=#381 id=381 data-nosnippet>381</a> (<span class="macro-nonterminal">$array</span>:expr, <span class="macro-nonterminal">$expected</span>:expr) =&gt; {{
<a href=#382 id=382 data-nosnippet>382</a> <span class="kw">let </span>array: ArrayRef = Arc::new(<span class="macro-nonterminal">$array</span>);
<a href=#383 id=383 data-nosnippet>383</a> <span class="macro">assert_eq!</span>(JsonArray::from(<span class="kw-2">&amp;</span>array).try_get_value(<span class="number">0</span>)<span class="question-mark">?</span>, <span class="macro">json!</span>(<span class="macro-nonterminal">$expected</span>));
<a href=#384 id=384 data-nosnippet>384</a> }};
<a href=#385 id=385 data-nosnippet>385</a> }
<a href=#386 id=386 data-nosnippet>386</a> <span class="macro">assert_number!</span>(Int8Array::from(<span class="macro">vec!</span>[-<span class="number">8</span>]), -<span class="number">8</span>);
<a href=#387 id=387 data-nosnippet>387</a> <span class="macro">assert_number!</span>(Int16Array::from(<span class="macro">vec!</span>[-<span class="number">16</span>]), -<span class="number">16</span>);
<a href=#388 id=388 data-nosnippet>388</a> <span class="macro">assert_number!</span>(Int32Array::from(<span class="macro">vec!</span>[-<span class="number">32</span>]), -<span class="number">32</span>);
<a href=#389 id=389 data-nosnippet>389</a> <span class="macro">assert_number!</span>(UInt8Array::from(<span class="macro">vec!</span>[<span class="number">8</span>]), <span class="number">8</span>);
<a href=#390 id=390 data-nosnippet>390</a> <span class="macro">assert_number!</span>(UInt16Array::from(<span class="macro">vec!</span>[<span class="number">16</span>]), <span class="number">16</span>);
<a href=#391 id=391 data-nosnippet>391</a> <span class="macro">assert_number!</span>(UInt32Array::from(<span class="macro">vec!</span>[<span class="number">32</span>]), <span class="number">32</span>);
<a href=#392 id=392 data-nosnippet>392</a> <span class="macro">assert_number!</span>(Float32Array::from(<span class="macro">vec!</span>[<span class="number">1.25</span>]), <span class="number">1.25</span>);
<a href=#393 id=393 data-nosnippet>393</a>
<a href=#394 id=394 data-nosnippet>394</a> <span class="kw">let </span>floats: ArrayRef = Arc::new(Float64Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1.5</span>)]));
<a href=#395 id=395 data-nosnippet>395</a> <span class="macro">assert_eq!</span>(JsonArray::from(<span class="kw-2">&amp;</span>floats).try_get_value(<span class="number">0</span>)<span class="question-mark">?</span>, <span class="macro">json!</span>(<span class="number">1.5</span>));
<a href=#396 id=396 data-nosnippet>396</a>
<a href=#397 id=397 data-nosnippet>397</a> <span class="kw">let </span>strings: ArrayRef = Arc::new(StringArray::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="string">"hello"</span>), <span class="prelude-val">None</span>]));
<a href=#398 id=398 data-nosnippet>398</a> <span class="macro">assert_eq!</span>(JsonArray::from(<span class="kw-2">&amp;</span>strings).try_get_value(<span class="number">0</span>)<span class="question-mark">?</span>, <span class="macro">json!</span>(<span class="string">"hello"</span>));
<a href=#399 id=399 data-nosnippet>399</a> <span class="macro">assert_eq!</span>(JsonArray::from(<span class="kw-2">&amp;</span>strings).try_get_value(<span class="number">1</span>)<span class="question-mark">?</span>, Value::Null);
<a href=#400 id=400 data-nosnippet>400</a>
<a href=#401 id=401 data-nosnippet>401</a> <span class="kw">let </span>nested = jsonb::parse_value(<span class="string">br#"{"nested":[1,null,"x"]}"#</span>)
<a href=#402 id=402 data-nosnippet>402</a> .unwrap()
<a href=#403 id=403 data-nosnippet>403</a> .to_vec();
<a href=#404 id=404 data-nosnippet>404</a> <span class="kw">let </span>null = jsonb::parse_value(<span class="string">b"null"</span>).unwrap().to_vec();
<a href=#405 id=405 data-nosnippet>405</a> <span class="kw">let </span>binaries: ArrayRef =
<a href=#406 id=406 data-nosnippet>406</a> Arc::new(BinaryArray::from(<span class="macro">vec!</span>[nested.as_slice(), null.as_slice()]));
<a href=#407 id=407 data-nosnippet>407</a> <span class="macro">assert_eq!</span>(
<a href=#408 id=408 data-nosnippet>408</a> JsonArray::from(<span class="kw-2">&amp;</span>binaries).try_get_value(<span class="number">0</span>)<span class="question-mark">?</span>,
<a href=#409 id=409 data-nosnippet>409</a> <span class="macro">json!</span>({<span class="string">"nested"</span>: [<span class="number">1</span>, null, <span class="string">"x"</span>]})
<a href=#410 id=410 data-nosnippet>410</a> );
<a href=#411 id=411 data-nosnippet>411</a> <span class="macro">assert_eq!</span>(JsonArray::from(<span class="kw-2">&amp;</span>binaries).try_get_value(<span class="number">1</span>)<span class="question-mark">?</span>, Value::Null);
<a href=#412 id=412 data-nosnippet>412</a>
<a href=#413 id=413 data-nosnippet>413</a> <span class="kw">let </span>lists: ArrayRef = Arc::new(ListArray::from_iter_primitive::&lt;Int64Type, <span class="kw">_</span>, <span class="kw">_</span>&gt;(<span class="macro">vec!</span>[
<a href=#414 id=414 data-nosnippet>414</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">3</span>)]),
<a href=#415 id=415 data-nosnippet>415</a> <span class="prelude-val">None</span>,
<a href=#416 id=416 data-nosnippet>416</a> ]));
<a href=#417 id=417 data-nosnippet>417</a> <span class="macro">assert_eq!</span>(
<a href=#418 id=418 data-nosnippet>418</a> JsonArray::from(<span class="kw-2">&amp;</span>lists).try_get_value(<span class="number">0</span>)<span class="question-mark">?</span>,
<a href=#419 id=419 data-nosnippet>419</a> <span class="macro">json!</span>([<span class="number">1</span>, null, <span class="number">3</span>])
<a href=#420 id=420 data-nosnippet>420</a> );
<a href=#421 id=421 data-nosnippet>421</a> <span class="macro">assert_eq!</span>(JsonArray::from(<span class="kw-2">&amp;</span>lists).try_get_value(<span class="number">1</span>)<span class="question-mark">?</span>, Value::Null);
<a href=#422 id=422 data-nosnippet>422</a>
<a href=#423 id=423 data-nosnippet>423</a> <span class="kw">let </span>structs: ArrayRef = Arc::new(StructArray::from(<span class="macro">vec!</span>[
<a href=#424 id=424 data-nosnippet>424</a> (
<a href=#425 id=425 data-nosnippet>425</a> Arc::new(Field::new(<span class="string">"flag"</span>, DataType::Boolean, <span class="bool-val">true</span>)),
<a href=#426 id=426 data-nosnippet>426</a> Arc::new(BooleanArray::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="bool-val">true</span>), <span class="prelude-val">None</span>])) <span class="kw">as </span>ArrayRef,
<a href=#427 id=427 data-nosnippet>427</a> ),
<a href=#428 id=428 data-nosnippet>428</a> (
<a href=#429 id=429 data-nosnippet>429</a> Arc::new(Field::new_list(
<a href=#430 id=430 data-nosnippet>430</a> <span class="string">"items"</span>,
<a href=#431 id=431 data-nosnippet>431</a> Field::new_list_field(DataType::Int64, <span class="bool-val">true</span>),
<a href=#432 id=432 data-nosnippet>432</a> <span class="bool-val">true</span>,
<a href=#433 id=433 data-nosnippet>433</a> )),
<a href=#434 id=434 data-nosnippet>434</a> Arc::new(ListArray::from_iter_primitive::&lt;Int64Type, <span class="kw">_</span>, <span class="kw">_</span>&gt;(<span class="macro">vec!</span>[
<a href=#435 id=435 data-nosnippet>435</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">None</span>]),
<a href=#436 id=436 data-nosnippet>436</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">2</span>)]),
<a href=#437 id=437 data-nosnippet>437</a> ])) <span class="kw">as </span>ArrayRef,
<a href=#438 id=438 data-nosnippet>438</a> ),
<a href=#439 id=439 data-nosnippet>439</a> ]));
<a href=#440 id=440 data-nosnippet>440</a> <span class="macro">assert_eq!</span>(
<a href=#441 id=441 data-nosnippet>441</a> JsonArray::from(<span class="kw-2">&amp;</span>structs).try_get_value(<span class="number">0</span>)<span class="question-mark">?</span>,
<a href=#442 id=442 data-nosnippet>442</a> <span class="macro">json!</span>({<span class="string">"flag"</span>: <span class="bool-val">true</span>, <span class="string">"items"</span>: [<span class="number">1</span>, null]})
<a href=#443 id=443 data-nosnippet>443</a> );
<a href=#444 id=444 data-nosnippet>444</a> <span class="macro">assert_eq!</span>(
<a href=#445 id=445 data-nosnippet>445</a> JsonArray::from(<span class="kw-2">&amp;</span>structs).try_get_value(<span class="number">1</span>)<span class="question-mark">?</span>,
<a href=#446 id=446 data-nosnippet>446</a> <span class="macro">json!</span>({<span class="string">"flag"</span>: null, <span class="string">"items"</span>: [<span class="number">2</span>]})
<a href=#447 id=447 data-nosnippet>447</a> );
<a href=#448 id=448 data-nosnippet>448</a>
<a href=#449 id=449 data-nosnippet>449</a> <span class="prelude-val">Ok</span>(())
<a href=#450 id=450 data-nosnippet>450</a> }
<a href=#451 id=451 data-nosnippet>451</a>
<a href=#452 id=452 data-nosnippet>452</a> <span class="attr">#[test]
<a href=#453 id=453 data-nosnippet>453</a> </span><span class="kw">fn </span>test_cast_variant_to_utf8_view_preserves_json_null() -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#454 id=454 data-nosnippet>454</a> <span class="kw">let </span>encode = |json: <span class="kw-2">&amp;</span>[u8]| jsonb::parse_value(json).unwrap().to_vec();
<a href=#455 id=455 data-nosnippet>455</a> <span class="kw">let </span>json_null = encode(<span class="string">b"null"</span>);
<a href=#456 id=456 data-nosnippet>456</a> <span class="kw">let </span>object = encode(<span class="string">br#"{"value":1}"#</span>);
<a href=#457 id=457 data-nosnippet>457</a> <span class="kw">let </span>string = encode(<span class="string">br#""text""#</span>);
<a href=#458 id=458 data-nosnippet>458</a> <span class="kw">let </span>variants: ArrayRef = Arc::new(BinaryArray::from(<span class="macro">vec!</span>[
<a href=#459 id=459 data-nosnippet>459</a> <span class="prelude-val">Some</span>(json_null.as_slice()),
<a href=#460 id=460 data-nosnippet>460</a> <span class="prelude-val">Some</span>(object.as_slice()),
<a href=#461 id=461 data-nosnippet>461</a> <span class="prelude-val">Some</span>(string.as_slice()),
<a href=#462 id=462 data-nosnippet>462</a> <span class="prelude-val">None</span>,
<a href=#463 id=463 data-nosnippet>463</a> ]));
<a href=#464 id=464 data-nosnippet>464</a>
<a href=#465 id=465 data-nosnippet>465</a> <span class="kw">let </span>casted = JsonArray::from(<span class="kw-2">&amp;</span>variants).project_to(<span class="kw-2">&amp;</span>DataType::Utf8View)<span class="question-mark">?</span>;
<a href=#466 id=466 data-nosnippet>466</a> <span class="kw">let </span>casted = casted.as_string_view();
<a href=#467 id=467 data-nosnippet>467</a> <span class="macro">assert!</span>(casted.is_null(<span class="number">0</span>));
<a href=#468 id=468 data-nosnippet>468</a> <span class="macro">assert_eq!</span>(casted.value(<span class="number">1</span>), <span class="string">r#"{"value":1}"#</span>);
<a href=#469 id=469 data-nosnippet>469</a> <span class="macro">assert_eq!</span>(casted.value(<span class="number">2</span>), <span class="string">"text"</span>);
<a href=#470 id=470 data-nosnippet>470</a> <span class="macro">assert!</span>(casted.is_null(<span class="number">3</span>));
<a href=#471 id=471 data-nosnippet>471</a>
<a href=#472 id=472 data-nosnippet>472</a> <span class="prelude-val">Ok</span>(())
<a href=#473 id=473 data-nosnippet>473</a> }
<a href=#474 id=474 data-nosnippet>474</a>
<a href=#475 id=475 data-nosnippet>475</a> <span class="attr">#[test]
<a href=#476 id=476 data-nosnippet>476</a> </span><span class="kw">fn </span>test_project_plain_scalars() -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#477 id=477 data-nosnippet>477</a> <span class="kw">let </span>integers: ArrayRef = Arc::new(Int64Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">42</span>), <span class="prelude-val">Some</span>(i64::MAX), <span class="prelude-val">None</span>]));
<a href=#478 id=478 data-nosnippet>478</a> <span class="kw">let </span>projected = JsonArray::from(<span class="kw-2">&amp;</span>integers).project_to(<span class="kw-2">&amp;</span>DataType::Int32)<span class="question-mark">?</span>;
<a href=#479 id=479 data-nosnippet>479</a> <span class="kw">let </span>expected: ArrayRef = Arc::new(Int32Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">42</span>), <span class="prelude-val">None</span>, <span class="prelude-val">None</span>]));
<a href=#480 id=480 data-nosnippet>480</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>expected, <span class="kw-2">&amp;</span>projected);
<a href=#481 id=481 data-nosnippet>481</a>
<a href=#482 id=482 data-nosnippet>482</a> <span class="kw">let </span>booleans: ArrayRef = Arc::new(BooleanArray::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="bool-val">true</span>), <span class="prelude-val">Some</span>(<span class="bool-val">false</span>), <span class="prelude-val">None</span>]));
<a href=#483 id=483 data-nosnippet>483</a> <span class="kw">let </span>projected = JsonArray::from(<span class="kw-2">&amp;</span>booleans).project_to(<span class="kw-2">&amp;</span>DataType::Float64)<span class="question-mark">?</span>;
<a href=#484 id=484 data-nosnippet>484</a> <span class="kw">let </span>expected: ArrayRef = Arc::new(Float64Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1.0</span>), <span class="prelude-val">Some</span>(<span class="number">0.0</span>), <span class="prelude-val">None</span>]));
<a href=#485 id=485 data-nosnippet>485</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>expected, <span class="kw-2">&amp;</span>projected);
<a href=#486 id=486 data-nosnippet>486</a>
<a href=#487 id=487 data-nosnippet>487</a> <span class="kw">let </span>strings: ArrayRef = Arc::new(StringArray::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="string">"42"</span>), <span class="prelude-val">Some</span>(<span class="string">"bad"</span>), <span class="prelude-val">None</span>]));
<a href=#488 id=488 data-nosnippet>488</a> <span class="kw">let </span>projected = JsonArray::from(<span class="kw-2">&amp;</span>strings).project_to(<span class="kw-2">&amp;</span>DataType::UInt64)<span class="question-mark">?</span>;
<a href=#489 id=489 data-nosnippet>489</a> <span class="kw">let </span>expected: ArrayRef = Arc::new(UInt64Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">42</span>), <span class="prelude-val">None</span>, <span class="prelude-val">None</span>]));
<a href=#490 id=490 data-nosnippet>490</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>expected, <span class="kw-2">&amp;</span>projected);
<a href=#491 id=491 data-nosnippet>491</a>
<a href=#492 id=492 data-nosnippet>492</a> <span class="prelude-val">Ok</span>(())
<a href=#493 id=493 data-nosnippet>493</a> }
<a href=#494 id=494 data-nosnippet>494</a>
<a href=#495 id=495 data-nosnippet>495</a> <span class="attr">#[test]
<a href=#496 id=496 data-nosnippet>496</a> </span><span class="kw">fn </span>test_align_variant_to_struct() -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#497 id=497 data-nosnippet>497</a> <span class="kw">let </span>encode = |json: <span class="kw-2">&amp;</span>[u8]| jsonb::parse_value(json).unwrap().to_vec();
<a href=#498 id=498 data-nosnippet>498</a> <span class="kw">let </span>object =
<a href=#499 id=499 data-nosnippet>499</a> encode(<span class="string">br#"{"nested":{"flag":true,"items":[1,2],"raw":{"x":1},"text":42,"value":42}}"#</span>);
<a href=#500 id=500 data-nosnippet>500</a> <span class="kw">let </span>scalar = encode(<span class="string">b"1"</span>);
<a href=#501 id=501 data-nosnippet>501</a> <span class="kw">let </span>variants: ArrayRef = Arc::new(BinaryArray::from(<span class="macro">vec!</span>[
<a href=#502 id=502 data-nosnippet>502</a> <span class="prelude-val">Some</span>(object.as_slice()),
<a href=#503 id=503 data-nosnippet>503</a> <span class="prelude-val">None</span>,
<a href=#504 id=504 data-nosnippet>504</a> <span class="prelude-val">Some</span>(scalar.as_slice()),
<a href=#505 id=505 data-nosnippet>505</a> ]));
<a href=#506 id=506 data-nosnippet>506</a> <span class="kw">let </span>expected_type = DataType::Struct(Fields::from(<span class="macro">vec!</span>[Field::new_struct(
<a href=#507 id=507 data-nosnippet>507</a> <span class="string">"nested"</span>,
<a href=#508 id=508 data-nosnippet>508</a> <span class="macro">vec!</span>[
<a href=#509 id=509 data-nosnippet>509</a> Field::new(<span class="string">"flag"</span>, DataType::Boolean, <span class="bool-val">true</span>),
<a href=#510 id=510 data-nosnippet>510</a> Field::new_list(<span class="string">"items"</span>, Field::new_list_field(DataType::UInt64, <span class="bool-val">true</span>), <span class="bool-val">true</span>),
<a href=#511 id=511 data-nosnippet>511</a> Field::new(<span class="string">"raw"</span>, DataType::Binary, <span class="bool-val">true</span>),
<a href=#512 id=512 data-nosnippet>512</a> Field::new(<span class="string">"text"</span>, DataType::Utf8View, <span class="bool-val">true</span>),
<a href=#513 id=513 data-nosnippet>513</a> Field::new(<span class="string">"value"</span>, DataType::UInt64, <span class="bool-val">true</span>),
<a href=#514 id=514 data-nosnippet>514</a> ],
<a href=#515 id=515 data-nosnippet>515</a> <span class="bool-val">true</span>,
<a href=#516 id=516 data-nosnippet>516</a> )]));
<a href=#517 id=517 data-nosnippet>517</a>
<a href=#518 id=518 data-nosnippet>518</a> <span class="kw">let </span>aligned = JsonArray::from(<span class="kw-2">&amp;</span>variants).project_to(<span class="kw-2">&amp;</span>expected_type)<span class="question-mark">?</span>;
<a href=#519 id=519 data-nosnippet>519</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>expected_type, aligned.data_type());
<a href=#520 id=520 data-nosnippet>520</a> <span class="macro">assert_eq!</span>(
<a href=#521 id=521 data-nosnippet>521</a> <span class="macro">json!</span>({
<a href=#522 id=522 data-nosnippet>522</a> <span class="string">"nested"</span>: {
<a href=#523 id=523 data-nosnippet>523</a> <span class="string">"flag"</span>: <span class="bool-val">true</span>,
<a href=#524 id=524 data-nosnippet>524</a> <span class="string">"items"</span>: [<span class="number">1</span>, <span class="number">2</span>],
<a href=#525 id=525 data-nosnippet>525</a> <span class="string">"raw"</span>: {<span class="string">"x"</span>: <span class="number">1</span>},
<a href=#526 id=526 data-nosnippet>526</a> <span class="string">"text"</span>: <span class="string">"42"</span>,
<a href=#527 id=527 data-nosnippet>527</a> <span class="string">"value"</span>: <span class="number">42
<a href=#528 id=528 data-nosnippet>528</a> </span>}
<a href=#529 id=529 data-nosnippet>529</a> }),
<a href=#530 id=530 data-nosnippet>530</a> JsonArray::from(<span class="kw-2">&amp;</span>aligned).try_get_value(<span class="number">0</span>)<span class="question-mark">?
<a href=#531 id=531 data-nosnippet>531</a> </span>);
<a href=#532 id=532 data-nosnippet>532</a> <span class="macro">assert!</span>(aligned.is_null(<span class="number">1</span>));
<a href=#533 id=533 data-nosnippet>533</a> <span class="macro">assert!</span>(aligned.is_null(<span class="number">2</span>));
<a href=#534 id=534 data-nosnippet>534</a>
<a href=#535 id=535 data-nosnippet>535</a> <span class="prelude-val">Ok</span>(())
<a href=#536 id=536 data-nosnippet>536</a> }
<a href=#537 id=537 data-nosnippet>537</a>
<a href=#538 id=538 data-nosnippet>538</a> <span class="attr">#[test]
<a href=#539 id=539 data-nosnippet>539</a> </span><span class="kw">fn </span>test_align_nested_variant_to_struct() -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#540 id=540 data-nosnippet>540</a> <span class="kw">let </span>object = jsonb::parse_value(<span class="string">br#"{"flag":true,"value":42}"#</span>)
<a href=#541 id=541 data-nosnippet>541</a> .unwrap()
<a href=#542 id=542 data-nosnippet>542</a> .to_vec();
<a href=#543 id=543 data-nosnippet>543</a> <span class="kw">let </span>variants: ArrayRef = Arc::new(BinaryArray::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(object.as_slice()), <span class="prelude-val">None</span>]));
<a href=#544 id=544 data-nosnippet>544</a> <span class="kw">let </span>input: ArrayRef = Arc::new(StructArray::from(<span class="macro">vec!</span>[(
<a href=#545 id=545 data-nosnippet>545</a> Arc::new(Field::new(<span class="string">"nested"</span>, DataType::Binary, <span class="bool-val">true</span>)),
<a href=#546 id=546 data-nosnippet>546</a> variants,
<a href=#547 id=547 data-nosnippet>547</a> )]));
<a href=#548 id=548 data-nosnippet>548</a> <span class="kw">let </span>expected_type = DataType::Struct(Fields::from(<span class="macro">vec!</span>[Field::new_struct(
<a href=#549 id=549 data-nosnippet>549</a> <span class="string">"nested"</span>,
<a href=#550 id=550 data-nosnippet>550</a> <span class="macro">vec!</span>[
<a href=#551 id=551 data-nosnippet>551</a> Field::new(<span class="string">"flag"</span>, DataType::Boolean, <span class="bool-val">true</span>),
<a href=#552 id=552 data-nosnippet>552</a> Field::new(<span class="string">"value"</span>, DataType::UInt64, <span class="bool-val">true</span>),
<a href=#553 id=553 data-nosnippet>553</a> ],
<a href=#554 id=554 data-nosnippet>554</a> <span class="bool-val">true</span>,
<a href=#555 id=555 data-nosnippet>555</a> )]));
<a href=#556 id=556 data-nosnippet>556</a>
<a href=#557 id=557 data-nosnippet>557</a> <span class="kw">let </span>aligned = JsonArray::from(<span class="kw-2">&amp;</span>input).project_to(<span class="kw-2">&amp;</span>expected_type)<span class="question-mark">?</span>;
<a href=#558 id=558 data-nosnippet>558</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>expected_type, aligned.data_type());
<a href=#559 id=559 data-nosnippet>559</a> <span class="macro">assert_eq!</span>(
<a href=#560 id=560 data-nosnippet>560</a> <span class="macro">json!</span>({<span class="string">"nested"</span>: {<span class="string">"flag"</span>: <span class="bool-val">true</span>, <span class="string">"value"</span>: <span class="number">42</span>}}),
<a href=#561 id=561 data-nosnippet>561</a> JsonArray::from(<span class="kw-2">&amp;</span>aligned).try_get_value(<span class="number">0</span>)<span class="question-mark">?
<a href=#562 id=562 data-nosnippet>562</a> </span>);
<a href=#563 id=563 data-nosnippet>563</a> <span class="macro">assert_eq!</span>(
<a href=#564 id=564 data-nosnippet>564</a> <span class="macro">json!</span>({<span class="string">"nested"</span>: null}),
<a href=#565 id=565 data-nosnippet>565</a> JsonArray::from(<span class="kw-2">&amp;</span>aligned).try_get_value(<span class="number">1</span>)<span class="question-mark">?
<a href=#566 id=566 data-nosnippet>566</a> </span>);
<a href=#567 id=567 data-nosnippet>567</a>
<a href=#568 id=568 data-nosnippet>568</a> <span class="prelude-val">Ok</span>(())
<a href=#569 id=569 data-nosnippet>569</a> }
<a href=#570 id=570 data-nosnippet>570</a>
<a href=#571 id=571 data-nosnippet>571</a> <span class="attr">#[test]
<a href=#572 id=572 data-nosnippet>572</a> </span><span class="kw">fn </span>test_reconstruct_json2_v2_value() -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#573 id=573 data-nosnippet>573</a> <span class="kw">let </span>remainders = json_values_to_variant(<span class="kw-2">&amp;</span>[
<a href=#574 id=574 data-nosnippet>574</a> <span class="prelude-val">Some</span>(<span class="macro">json!</span>({<span class="string">"cold"</span>: <span class="number">1</span>, <span class="string">"nested"</span>: {<span class="string">"right"</span>: <span class="bool-val">true</span>}})),
<a href=#575 id=575 data-nosnippet>575</a> <span class="prelude-val">Some</span>(<span class="macro">json!</span>({<span class="string">"!__remainder__!"</span>: <span class="string">"user value"</span>})),
<a href=#576 id=576 data-nosnippet>576</a> ])<span class="question-mark">?</span>;
<a href=#577 id=577 data-nosnippet>577</a> <span class="kw">let </span>remainder = Arc::new(variant_field(JSON2_REMAINDER_FIELD_NAME, <span class="bool-val">true</span>));
<a href=#578 id=578 data-nosnippet>578</a> <span class="kw">let </span>nested = Arc::new(Field::new_struct(
<a href=#579 id=579 data-nosnippet>579</a> <span class="string">"nested"</span>,
<a href=#580 id=580 data-nosnippet>580</a> [Arc::new(Field::new(<span class="string">"left"</span>, DataType::Utf8, <span class="bool-val">true</span>))],
<a href=#581 id=581 data-nosnippet>581</a> <span class="bool-val">true</span>,
<a href=#582 id=582 data-nosnippet>582</a> ));
<a href=#583 id=583 data-nosnippet>583</a> <span class="kw">let </span>nested_values: ArrayRef = Arc::new(StructArray::from(<span class="macro">vec!</span>[(
<a href=#584 id=584 data-nosnippet>584</a> Arc::new(Field::new(<span class="string">"left"</span>, DataType::Utf8, <span class="bool-val">true</span>)),
<a href=#585 id=585 data-nosnippet>585</a> Arc::new(StringArray::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="string">"value"</span>), <span class="prelude-val">None</span>])) <span class="kw">as </span>ArrayRef,
<a href=#586 id=586 data-nosnippet>586</a> )]));
<a href=#587 id=587 data-nosnippet>587</a> <span class="kw">let </span>fields = Fields::from(<span class="macro">vec!</span>[
<a href=#588 id=588 data-nosnippet>588</a> remainder,
<a href=#589 id=589 data-nosnippet>589</a> Arc::new(Field::new(<span class="string">"count"</span>, DataType::Int64, <span class="bool-val">true</span>)),
<a href=#590 id=590 data-nosnippet>590</a> nested,
<a href=#591 id=591 data-nosnippet>591</a> ]);
<a href=#592 id=592 data-nosnippet>592</a> <span class="kw">let </span>array: ArrayRef = Arc::new(StructArray::new(
<a href=#593 id=593 data-nosnippet>593</a> fields.clone(),
<a href=#594 id=594 data-nosnippet>594</a> <span class="macro">vec!</span>[
<a href=#595 id=595 data-nosnippet>595</a> remainders,
<a href=#596 id=596 data-nosnippet>596</a> Arc::new(Int64Array::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">42</span>), <span class="prelude-val">None</span>])),
<a href=#597 id=597 data-nosnippet>597</a> nested_values,
<a href=#598 id=598 data-nosnippet>598</a> ],
<a href=#599 id=599 data-nosnippet>599</a> <span class="prelude-val">None</span>,
<a href=#600 id=600 data-nosnippet>600</a> ));
<a href=#601 id=601 data-nosnippet>601</a> <span class="kw">let </span>field = Field::new(<span class="string">"data"</span>, DataType::Struct(fields), <span class="bool-val">true</span>).with_extension_type(
<a href=#602 id=602 data-nosnippet>602</a> Json2ExtensionType::new(Arc::new(JsonMetadata::new(JsonSettings::default()))),
<a href=#603 id=603 data-nosnippet>603</a> );
<a href=#604 id=604 data-nosnippet>604</a>
<a href=#605 id=605 data-nosnippet>605</a> <span class="macro">assert_eq!</span>(
<a href=#606 id=606 data-nosnippet>606</a> <span class="macro">json!</span>({
<a href=#607 id=607 data-nosnippet>607</a> <span class="string">"cold"</span>: <span class="number">1</span>,
<a href=#608 id=608 data-nosnippet>608</a> <span class="string">"count"</span>: <span class="number">42</span>,
<a href=#609 id=609 data-nosnippet>609</a> <span class="string">"nested"</span>: {<span class="string">"left"</span>: <span class="string">"value"</span>, <span class="string">"right"</span>: <span class="bool-val">true</span>}
<a href=#610 id=610 data-nosnippet>610</a> }),
<a href=#611 id=611 data-nosnippet>611</a> JsonArray::from(<span class="kw-2">&amp;</span>array).json2_values()<span class="question-mark">?</span>[<span class="number">0</span>]
<a href=#612 id=612 data-nosnippet>612</a> );
<a href=#613 id=613 data-nosnippet>613</a> <span class="macro">assert_eq!</span>(
<a href=#614 id=614 data-nosnippet>614</a> <span class="macro">json!</span>({
<a href=#615 id=615 data-nosnippet>615</a> <span class="string">"!__remainder__!"</span>: <span class="string">"user value"</span>,
<a href=#616 id=616 data-nosnippet>616</a> <span class="string">"nested"</span>: {}
<a href=#617 id=617 data-nosnippet>617</a> }),
<a href=#618 id=618 data-nosnippet>618</a> JsonArray::from(<span class="kw-2">&amp;</span>array).json2_values()<span class="question-mark">?</span>[<span class="number">1</span>]
<a href=#619 id=619 data-nosnippet>619</a> );
<a href=#620 id=620 data-nosnippet>620</a> <span class="kw">let </span>target = DataType::Struct(
<a href=#621 id=621 data-nosnippet>621</a> <span class="macro">vec!</span>[
<a href=#622 id=622 data-nosnippet>622</a> Arc::new(Field::new(<span class="string">"cold"</span>, DataType::UInt64, <span class="bool-val">true</span>)),
<a href=#623 id=623 data-nosnippet>623</a> Arc::new(Field::new(<span class="string">"count"</span>, DataType::Int64, <span class="bool-val">true</span>)),
<a href=#624 id=624 data-nosnippet>624</a> ]
<a href=#625 id=625 data-nosnippet>625</a> .into(),
<a href=#626 id=626 data-nosnippet>626</a> );
<a href=#627 id=627 data-nosnippet>627</a> <span class="kw">let </span>projected = JsonArray::from(<span class="kw-2">&amp;</span>array).project_to_v2(<span class="kw-2">&amp;</span>field, <span class="kw-2">&amp;</span>target)<span class="question-mark">?</span>;
<a href=#628 id=628 data-nosnippet>628</a> <span class="macro">assert_eq!</span>(
<a href=#629 id=629 data-nosnippet>629</a> <span class="macro">json!</span>({<span class="string">"cold"</span>: <span class="number">1</span>, <span class="string">"count"</span>: <span class="number">42</span>}),
<a href=#630 id=630 data-nosnippet>630</a> JsonArray::from(<span class="kw-2">&amp;</span>projected).try_get_value(<span class="number">0</span>)<span class="question-mark">?
<a href=#631 id=631 data-nosnippet>631</a> </span>);
<a href=#632 id=632 data-nosnippet>632</a> <span class="macro">assert_eq!</span>(
<a href=#633 id=633 data-nosnippet>633</a> <span class="macro">json!</span>({<span class="string">"cold"</span>: null, <span class="string">"count"</span>: null}),
<a href=#634 id=634 data-nosnippet>634</a> JsonArray::from(<span class="kw-2">&amp;</span>projected).try_get_value(<span class="number">1</span>)<span class="question-mark">?
<a href=#635 id=635 data-nosnippet>635</a> </span>);
<a href=#636 id=636 data-nosnippet>636</a> <span class="prelude-val">Ok</span>(())
<a href=#637 id=637 data-nosnippet>637</a> }
<a href=#638 id=638 data-nosnippet>638</a>
<a href=#639 id=639 data-nosnippet>639</a> <span class="attr">#[test]
<a href=#640 id=640 data-nosnippet>640</a> </span><span class="kw">fn </span>test_rewrite_to_v2_reuses_matching_layout() -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#641 id=641 data-nosnippet>641</a> <span class="kw">let </span>settings = JsonSettings::try_new(
<a href=#642 id=642 data-nosnippet>642</a> <span class="macro">vec!</span>[JsonTypeHint {
<a href=#643 id=643 data-nosnippet>643</a> path: <span class="macro">vec!</span>[<span class="string">"kind"</span>.to_string()],
<a href=#644 id=644 data-nosnippet>644</a> data_type: ConcreteDataType::string_datatype(),
<a href=#645 id=645 data-nosnippet>645</a> inverted_index: <span class="bool-val">false</span>,
<a href=#646 id=646 data-nosnippet>646</a> }],
<a href=#647 id=647 data-nosnippet>647</a> <span class="prelude-val">Some</span>(<span class="number">0</span>),
<a href=#648 id=648 data-nosnippet>648</a> )<span class="question-mark">?</span>;
<a href=#649 id=649 data-nosnippet>649</a> <span class="kw">let </span>value = settings.encode(<span class="macro">json!</span>({<span class="string">"kind"</span>: <span class="string">"access"</span>, <span class="string">"cold"</span>: <span class="number">1</span>}))<span class="question-mark">?</span>;
<a href=#650 id=650 data-nosnippet>650</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = JsonVectorBuilder::with_settings(<span class="kw-2">&amp;</span>settings, <span class="number">1</span>);
<a href=#651 id=651 data-nosnippet>651</a> builder.try_push_value_ref(<span class="kw-2">&amp;</span>value.as_value_ref())<span class="question-mark">?</span>;
<a href=#652 id=652 data-nosnippet>652</a> <span class="kw">let </span>array = builder.to_vector().to_arrow_array();
<a href=#653 id=653 data-nosnippet>653</a> <span class="kw">let </span>structs = array.as_struct();
<a href=#654 id=654 data-nosnippet>654</a> <span class="macro">assert!</span>(structs.column_by_name(<span class="string">"kind"</span>).is_some());
<a href=#655 id=655 data-nosnippet>655</a> <span class="macro">assert_eq!</span>(
<a href=#656 id=656 data-nosnippet>656</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="macro">json!</span>({<span class="string">"cold"</span>: <span class="number">1</span>}))],
<a href=#657 id=657 data-nosnippet>657</a> variant_to_json_values(structs.column_by_name(JSON2_REMAINDER_FIELD_NAME).unwrap())<span class="question-mark">?
<a href=#658 id=658 data-nosnippet>658</a> </span>);
<a href=#659 id=659 data-nosnippet>659</a> <span class="kw">let </span>field = Field::new(<span class="string">"data"</span>, array.data_type().clone(), <span class="bool-val">true</span>).with_extension_type(
<a href=#660 id=660 data-nosnippet>660</a> Json2ExtensionType::new(Arc::new(JsonMetadata::new(settings.clone()))),
<a href=#661 id=661 data-nosnippet>661</a> );
<a href=#662 id=662 data-nosnippet>662</a>
<a href=#663 id=663 data-nosnippet>663</a> <span class="kw">let </span>rewritten = JsonArray::from(<span class="kw-2">&amp;</span>array).rewrite_to_v2(<span class="kw-2">&amp;</span>field, <span class="kw-2">&amp;</span>settings, <span class="kw-2">&amp;</span>settings)<span class="question-mark">?</span>;
<a href=#664 id=664 data-nosnippet>664</a>
<a href=#665 id=665 data-nosnippet>665</a> <span class="macro">assert!</span>(Arc::ptr_eq(<span class="kw-2">&amp;</span>array, <span class="kw-2">&amp;</span>rewritten));
<a href=#666 id=666 data-nosnippet>666</a> <span class="prelude-val">Ok</span>(())
<a href=#667 id=667 data-nosnippet>667</a> }
<a href=#668 id=668 data-nosnippet>668</a>
<a href=#669 id=669 data-nosnippet>669</a> <span class="attr">#[test]
<a href=#670 id=670 data-nosnippet>670</a> </span><span class="kw">fn </span>test_project_partial_json2_v2_without_remainder() -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#671 id=671 data-nosnippet>671</a> <span class="kw">let </span>fields = Fields::from(<span class="macro">vec!</span>[Arc::new(Field::new(<span class="string">"hot"</span>, DataType::Int64, <span class="bool-val">true</span>))]);
<a href=#672 id=672 data-nosnippet>672</a> <span class="kw">let </span>array: ArrayRef = Arc::new(StructArray::new(
<a href=#673 id=673 data-nosnippet>673</a> fields.clone(),
<a href=#674 id=674 data-nosnippet>674</a> <span class="macro">vec!</span>[Arc::new(Int64Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>]))],
<a href=#675 id=675 data-nosnippet>675</a> <span class="prelude-val">None</span>,
<a href=#676 id=676 data-nosnippet>676</a> ));
<a href=#677 id=677 data-nosnippet>677</a> <span class="kw">let </span>field = Field::new(<span class="string">"data"</span>, DataType::Struct(fields), <span class="bool-val">true</span>).with_extension_type(
<a href=#678 id=678 data-nosnippet>678</a> Json2ExtensionType::new(Arc::new(JsonMetadata::new(JsonSettings::default()))),
<a href=#679 id=679 data-nosnippet>679</a> );
<a href=#680 id=680 data-nosnippet>680</a>
<a href=#681 id=681 data-nosnippet>681</a> <span class="kw">let </span>projected = JsonArray::from(<span class="kw-2">&amp;</span>array).project_to_v2(<span class="kw-2">&amp;</span>field, field.data_type())<span class="question-mark">?</span>;
<a href=#682 id=682 data-nosnippet>682</a> <span class="macro">assert!</span>(Arc::ptr_eq(<span class="kw-2">&amp;</span>array, <span class="kw-2">&amp;</span>projected));
<a href=#683 id=683 data-nosnippet>683</a> <span class="prelude-val">Ok</span>(())
<a href=#684 id=684 data-nosnippet>684</a> }
<a href=#685 id=685 data-nosnippet>685</a>
<a href=#686 id=686 data-nosnippet>686</a> <span class="attr">#[test]
<a href=#687 id=687 data-nosnippet>687</a> </span><span class="kw">fn </span>test_reject_conflict_json2_v2_path() -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#688 id=688 data-nosnippet>688</a> <span class="kw">let </span>remainders = json_values_to_variant(<span class="kw-2">&amp;</span>[<span class="prelude-val">Some</span>(<span class="macro">json!</span>({<span class="string">"count"</span>: <span class="number">1</span>}))])<span class="question-mark">?</span>;
<a href=#689 id=689 data-nosnippet>689</a> <span class="kw">let </span>fields = Fields::from(<span class="macro">vec!</span>[
<a href=#690 id=690 data-nosnippet>690</a> Arc::new(variant_field(JSON2_REMAINDER_FIELD_NAME, <span class="bool-val">true</span>)),
<a href=#691 id=691 data-nosnippet>691</a> Arc::new(Field::new(<span class="string">"count"</span>, DataType::Int64, <span class="bool-val">true</span>)),
<a href=#692 id=692 data-nosnippet>692</a> ]);
<a href=#693 id=693 data-nosnippet>693</a> <span class="kw">let </span>array: ArrayRef = Arc::new(StructArray::new(
<a href=#694 id=694 data-nosnippet>694</a> fields,
<a href=#695 id=695 data-nosnippet>695</a> <span class="macro">vec!</span>[remainders, Arc::new(Int64Array::from(<span class="macro">vec!</span>[<span class="number">2</span>]))],
<a href=#696 id=696 data-nosnippet>696</a> <span class="prelude-val">None</span>,
<a href=#697 id=697 data-nosnippet>697</a> ));
<a href=#698 id=698 data-nosnippet>698</a> <span class="kw">let </span>error = JsonArray::from(<span class="kw-2">&amp;</span>array).json2_values().unwrap_err();
<a href=#699 id=699 data-nosnippet>699</a> <span class="macro">assert!</span>(
<a href=#700 id=700 data-nosnippet>700</a> error.to_string().contains(
<a href=#701 id=701 data-nosnippet>701</a> <span class="string">"cannot merge 'count' in explicit fields and remainder: not both objects"
<a href=#702 id=702 data-nosnippet>702</a> </span>)
<a href=#703 id=703 data-nosnippet>703</a> );
<a href=#704 id=704 data-nosnippet>704</a>
<a href=#705 id=705 data-nosnippet>705</a> <span class="kw">let </span>Value::Object(<span class="kw-2">mut </span>remainder) = <span class="macro">json!</span>({<span class="string">"count"</span>: <span class="number">1</span>}) <span class="kw">else </span>{
<a href=#706 id=706 data-nosnippet>706</a> <span class="macro">unreachable!</span>();
<a href=#707 id=707 data-nosnippet>707</a> };
<a href=#708 id=708 data-nosnippet>708</a> <span class="kw">let </span>error = merge_explicit_value(
<a href=#709 id=709 data-nosnippet>709</a> <span class="kw-2">&amp;mut </span>remainder,
<a href=#710 id=710 data-nosnippet>710</a> <span class="string">"count"</span>.to_string(),
<a href=#711 id=711 data-nosnippet>711</a> <span class="macro">json!</span>(<span class="number">1</span>),
<a href=#712 id=712 data-nosnippet>712</a> <span class="kw-2">&amp;mut </span>Vec::new(),
<a href=#713 id=713 data-nosnippet>713</a> )
<a href=#714 id=714 data-nosnippet>714</a> .unwrap_err();
<a href=#715 id=715 data-nosnippet>715</a> <span class="macro">assert!</span>(error.to_string().contains(<span class="string">"cannot merge 'count'"</span>));
<a href=#716 id=716 data-nosnippet>716</a>
<a href=#717 id=717 data-nosnippet>717</a> <span class="kw">let </span>Value::Object(<span class="kw-2">mut </span>remainder) = <span class="macro">json!</span>({<span class="string">"nested"</span>: {<span class="string">"count"</span>: <span class="number">1</span>}}) <span class="kw">else </span>{
<a href=#718 id=718 data-nosnippet>718</a> <span class="macro">unreachable!</span>();
<a href=#719 id=719 data-nosnippet>719</a> };
<a href=#720 id=720 data-nosnippet>720</a> <span class="kw">let </span>error = merge_explicit_value(
<a href=#721 id=721 data-nosnippet>721</a> <span class="kw-2">&amp;mut </span>remainder,
<a href=#722 id=722 data-nosnippet>722</a> <span class="string">"nested"</span>.to_string(),
<a href=#723 id=723 data-nosnippet>723</a> <span class="macro">json!</span>({<span class="string">"count"</span>: <span class="number">2</span>}),
<a href=#724 id=724 data-nosnippet>724</a> <span class="kw-2">&amp;mut </span>Vec::new(),
<a href=#725 id=725 data-nosnippet>725</a> )
<a href=#726 id=726 data-nosnippet>726</a> .unwrap_err();
<a href=#727 id=727 data-nosnippet>727</a> <span class="macro">assert!</span>(error.to_string().contains(<span class="string">"cannot merge 'nested.count'"</span>));
<a href=#728 id=728 data-nosnippet>728</a> <span class="prelude-val">Ok</span>(())
<a href=#729 id=729 data-nosnippet>729</a> }
<a href=#730 id=730 data-nosnippet>730</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/json/variant.rs`."><title>variant.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/json/</div>variant.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::sync::Arc;
<a href=#16 id=16 data-nosnippet>16</a>
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>arrow_array::ArrayRef;
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>arrow_schema::{ArrowError, DataType, Field};
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>parquet_variant::{ObjectFieldBuilder, Variant, VariantBuilderExt, VariantDecimal16};
<a href=#20 id=20 data-nosnippet>20</a><span class="attr">#[cfg(test)]
<a href=#21 id=21 data-nosnippet>21</a></span><span class="kw">use </span>parquet_variant_compute::VariantArrayBuilder;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>parquet_variant_compute::{VariantArray, VariantType};
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>parquet_variant_json::VariantToJson;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>snafu::ResultExt;
<a href=#25 id=25 data-nosnippet>25</a>
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::error::{ArrowComputeSnafu, <span class="prelude-ty">Result</span>};
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::json::value::{JsonNumber, JsonVariant, JsonVariantRef, decode_json_variant};
<a href=#28 id=28 data-nosnippet>28</a>
<a href=#29 id=29 data-nosnippet>29</a><span class="doccomment">/// Returns the canonical Arrow field for an unshredded Parquet Variant array.
<a href=#30 id=30 data-nosnippet>30</a></span><span class="kw">pub fn </span>variant_field(name: <span class="kw">impl </span>Into&lt;String&gt;, nullable: bool) -&gt; Field {
<a href=#31 id=31 data-nosnippet>31</a> Field::new_struct(
<a href=#32 id=32 data-nosnippet>32</a> name,
<a href=#33 id=33 data-nosnippet>33</a> [
<a href=#34 id=34 data-nosnippet>34</a> Arc::new(Field::new(<span class="string">"metadata"</span>, DataType::BinaryView, <span class="bool-val">false</span>)),
<a href=#35 id=35 data-nosnippet>35</a> Arc::new(Field::new(<span class="string">"value"</span>, DataType::BinaryView, <span class="bool-val">false</span>)),
<a href=#36 id=36 data-nosnippet>36</a> ],
<a href=#37 id=37 data-nosnippet>37</a> nullable,
<a href=#38 id=38 data-nosnippet>38</a> )
<a href=#39 id=39 data-nosnippet>39</a> .with_extension_type(VariantType)
<a href=#40 id=40 data-nosnippet>40</a>}
<a href=#41 id=41 data-nosnippet>41</a>
<a href=#42 id=42 data-nosnippet>42</a><span class="doccomment">/// Encodes JSON values as an unshredded Parquet Variant array.
<a href=#43 id=43 data-nosnippet>43</a>///
<a href=#44 id=44 data-nosnippet>44</a>/// `None` represents an Arrow null while `Some(Value::Null)` represents a JSON
<a href=#45 id=45 data-nosnippet>45</a>/// null, preserving the distinction required by JSON2.
<a href=#46 id=46 data-nosnippet>46</a></span><span class="attr">#[cfg(test)]
<a href=#47 id=47 data-nosnippet>47</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>json_values_to_variant(values: <span class="kw-2">&amp;</span>[<span class="prelude-ty">Option</span>&lt;serde_json::Value&gt;]) -&gt; <span class="prelude-ty">Result</span>&lt;ArrayRef&gt; {
<a href=#48 id=48 data-nosnippet>48</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = VariantArrayBuilder::new(values.len());
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">for </span>value <span class="kw">in </span>values {
<a href=#50 id=50 data-nosnippet>50</a> <span class="kw">match </span>value {
<a href=#51 id=51 data-nosnippet>51</a> <span class="prelude-val">Some</span>(value) =&gt; append_json_value(<span class="kw-2">&amp;mut </span>builder, value).context(ArrowComputeSnafu)<span class="question-mark">?</span>,
<a href=#52 id=52 data-nosnippet>52</a> <span class="prelude-val">None </span>=&gt; builder.append_null(),
<a href=#53 id=53 data-nosnippet>53</a> }
<a href=#54 id=54 data-nosnippet>54</a> }
<a href=#55 id=55 data-nosnippet>55</a> <span class="prelude-val">Ok</span>(ArrayRef::from(builder.build()))
<a href=#56 id=56 data-nosnippet>56</a>}
<a href=#57 id=57 data-nosnippet>57</a>
<a href=#58 id=58 data-nosnippet>58</a><span class="doccomment">/// Encodes JSON variants as an unshredded Parquet Variant array.
<a href=#59 id=59 data-nosnippet>59</a></span><span class="attr">#[cfg(test)]
<a href=#60 id=60 data-nosnippet>60</a></span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>json_variants_to_variant(values: <span class="kw-2">&amp;</span>[<span class="prelude-ty">Option</span>&lt;JsonVariant&gt;]) -&gt; <span class="prelude-ty">Result</span>&lt;ArrayRef&gt; {
<a href=#61 id=61 data-nosnippet>61</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = VariantArrayBuilder::new(values.len());
<a href=#62 id=62 data-nosnippet>62</a> <span class="kw">for </span>value <span class="kw">in </span>values {
<a href=#63 id=63 data-nosnippet>63</a> <span class="kw">match </span>value {
<a href=#64 id=64 data-nosnippet>64</a> <span class="prelude-val">Some</span>(value) =&gt; append_json_variant(<span class="kw-2">&amp;mut </span>builder, value).context(ArrowComputeSnafu)<span class="question-mark">?</span>,
<a href=#65 id=65 data-nosnippet>65</a> <span class="prelude-val">None </span>=&gt; builder.append_null(),
<a href=#66 id=66 data-nosnippet>66</a> }
<a href=#67 id=67 data-nosnippet>67</a> }
<a href=#68 id=68 data-nosnippet>68</a> <span class="prelude-val">Ok</span>(ArrayRef::from(builder.build()))
<a href=#69 id=69 data-nosnippet>69</a>}
<a href=#70 id=70 data-nosnippet>70</a>
<a href=#71 id=71 data-nosnippet>71</a><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>append_json_variant(
<a href=#72 id=72 data-nosnippet>72</a> builder: <span class="kw-2">&amp;mut </span><span class="kw">impl </span>VariantBuilderExt,
<a href=#73 id=73 data-nosnippet>73</a> value: <span class="kw-2">&amp;</span>JsonVariant,
<a href=#74 id=74 data-nosnippet>74</a>) -&gt; std::result::Result&lt;(), ArrowError&gt; {
<a href=#75 id=75 data-nosnippet>75</a> <span class="kw">match </span>value {
<a href=#76 id=76 data-nosnippet>76</a> JsonVariant::Null =&gt; builder.append_value(Variant::Null),
<a href=#77 id=77 data-nosnippet>77</a> JsonVariant::Bool(value) =&gt; builder.append_value(<span class="kw-2">*</span>value),
<a href=#78 id=78 data-nosnippet>78</a> JsonVariant::Number(JsonNumber::PosInt(value)) =&gt; {
<a href=#79 id=79 data-nosnippet>79</a> <span class="kw">if let </span><span class="prelude-val">Ok</span>(value) = i64::try_from(<span class="kw-2">*</span>value) {
<a href=#80 id=80 data-nosnippet>80</a> builder.append_value(value);
<a href=#81 id=81 data-nosnippet>81</a> } <span class="kw">else </span>{
<a href=#82 id=82 data-nosnippet>82</a> append_large_u64(builder, <span class="kw-2">*</span>value)<span class="question-mark">?</span>;
<a href=#83 id=83 data-nosnippet>83</a> }
<a href=#84 id=84 data-nosnippet>84</a> }
<a href=#85 id=85 data-nosnippet>85</a> JsonVariant::Number(JsonNumber::NegInt(value)) =&gt; builder.append_value(<span class="kw-2">*</span>value),
<a href=#86 id=86 data-nosnippet>86</a> JsonVariant::Number(JsonNumber::Float(value)) =&gt; {
<a href=#87 id=87 data-nosnippet>87</a> <span class="kw">if </span>value.<span class="number">0</span>.is_finite() {
<a href=#88 id=88 data-nosnippet>88</a> builder.append_value(value.<span class="number">0</span>)
<a href=#89 id=89 data-nosnippet>89</a> } <span class="kw">else </span>{
<a href=#90 id=90 data-nosnippet>90</a> builder.append_value(<span class="string">"NaN"</span>)
<a href=#91 id=91 data-nosnippet>91</a> }
<a href=#92 id=92 data-nosnippet>92</a> }
<a href=#93 id=93 data-nosnippet>93</a> JsonVariant::String(value) =&gt; builder.append_value(value.as_str()),
<a href=#94 id=94 data-nosnippet>94</a> JsonVariant::Array(values) =&gt; {
<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">let </span><span class="kw-2">mut </span>list = builder.try_new_list()<span class="question-mark">?</span>;
<a href=#96 id=96 data-nosnippet>96</a> <span class="kw">for </span>value <span class="kw">in </span>values {
<a href=#97 id=97 data-nosnippet>97</a> append_json_variant(<span class="kw-2">&amp;mut </span>list, value)<span class="question-mark">?</span>;
<a href=#98 id=98 data-nosnippet>98</a> }
<a href=#99 id=99 data-nosnippet>99</a> list.finish();
<a href=#100 id=100 data-nosnippet>100</a> }
<a href=#101 id=101 data-nosnippet>101</a> JsonVariant::Object(values) =&gt; {
<a href=#102 id=102 data-nosnippet>102</a> <span class="kw">let </span><span class="kw-2">mut </span>object = builder.try_new_object()<span class="question-mark">?</span>;
<a href=#103 id=103 data-nosnippet>103</a> <span class="kw">for </span>(name, value) <span class="kw">in </span>values {
<a href=#104 id=104 data-nosnippet>104</a> append_json_variant(<span class="kw-2">&amp;mut </span>ObjectFieldBuilder::new(name, <span class="kw-2">&amp;mut </span>object), value)<span class="question-mark">?</span>;
<a href=#105 id=105 data-nosnippet>105</a> }
<a href=#106 id=106 data-nosnippet>106</a> object.finish();
<a href=#107 id=107 data-nosnippet>107</a> }
<a href=#108 id=108 data-nosnippet>108</a> JsonVariant::Variant(value) =&gt; {
<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">let </span>value = decode_json_variant(value)
<a href=#110 id=110 data-nosnippet>110</a> .map_err(|e| ArrowError::JsonError(<span class="macro">format!</span>(<span class="string">"Failed to decode JSONB: {e}"</span>)))<span class="question-mark">?</span>;
<a href=#111 id=111 data-nosnippet>111</a> append_json_value(builder, <span class="kw-2">&amp;</span>value)<span class="question-mark">?</span>;
<a href=#112 id=112 data-nosnippet>112</a> }
<a href=#113 id=113 data-nosnippet>113</a> }
<a href=#114 id=114 data-nosnippet>114</a> <span class="prelude-val">Ok</span>(())
<a href=#115 id=115 data-nosnippet>115</a>}
<a href=#116 id=116 data-nosnippet>116</a>
<a href=#117 id=117 data-nosnippet>117</a><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>append_json_variant_ref(
<a href=#118 id=118 data-nosnippet>118</a> builder: <span class="kw-2">&amp;mut </span><span class="kw">impl </span>VariantBuilderExt,
<a href=#119 id=119 data-nosnippet>119</a> value: <span class="kw-2">&amp;</span>JsonVariantRef&lt;<span class="lifetime">'_</span>&gt;,
<a href=#120 id=120 data-nosnippet>120</a>) -&gt; std::result::Result&lt;(), ArrowError&gt; {
<a href=#121 id=121 data-nosnippet>121</a> <span class="kw">match </span>value {
<a href=#122 id=122 data-nosnippet>122</a> JsonVariantRef::Null =&gt; builder.append_value(Variant::Null),
<a href=#123 id=123 data-nosnippet>123</a> JsonVariantRef::Bool(value) =&gt; builder.append_value(<span class="kw-2">*</span>value),
<a href=#124 id=124 data-nosnippet>124</a> JsonVariantRef::Number(JsonNumber::PosInt(value)) =&gt; {
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">if let </span><span class="prelude-val">Ok</span>(value) = i64::try_from(<span class="kw-2">*</span>value) {
<a href=#126 id=126 data-nosnippet>126</a> builder.append_value(value);
<a href=#127 id=127 data-nosnippet>127</a> } <span class="kw">else </span>{
<a href=#128 id=128 data-nosnippet>128</a> append_large_u64(builder, <span class="kw-2">*</span>value)<span class="question-mark">?</span>;
<a href=#129 id=129 data-nosnippet>129</a> }
<a href=#130 id=130 data-nosnippet>130</a> }
<a href=#131 id=131 data-nosnippet>131</a> JsonVariantRef::Number(JsonNumber::NegInt(value)) =&gt; builder.append_value(<span class="kw-2">*</span>value),
<a href=#132 id=132 data-nosnippet>132</a> JsonVariantRef::Number(JsonNumber::Float(value)) =&gt; {
<a href=#133 id=133 data-nosnippet>133</a> <span class="kw">if </span>value.<span class="number">0</span>.is_finite() {
<a href=#134 id=134 data-nosnippet>134</a> builder.append_value(value.<span class="number">0</span>)
<a href=#135 id=135 data-nosnippet>135</a> } <span class="kw">else </span>{
<a href=#136 id=136 data-nosnippet>136</a> builder.append_value(<span class="string">"NaN"</span>)
<a href=#137 id=137 data-nosnippet>137</a> }
<a href=#138 id=138 data-nosnippet>138</a> }
<a href=#139 id=139 data-nosnippet>139</a> JsonVariantRef::String(value) =&gt; builder.append_value(<span class="kw-2">*</span>value),
<a href=#140 id=140 data-nosnippet>140</a> JsonVariantRef::Array(values) =&gt; {
<a href=#141 id=141 data-nosnippet>141</a> <span class="kw">let </span><span class="kw-2">mut </span>list = builder.try_new_list()<span class="question-mark">?</span>;
<a href=#142 id=142 data-nosnippet>142</a> <span class="kw">for </span>value <span class="kw">in </span>values {
<a href=#143 id=143 data-nosnippet>143</a> append_json_variant_ref(<span class="kw-2">&amp;mut </span>list, value)<span class="question-mark">?</span>;
<a href=#144 id=144 data-nosnippet>144</a> }
<a href=#145 id=145 data-nosnippet>145</a> list.finish();
<a href=#146 id=146 data-nosnippet>146</a> }
<a href=#147 id=147 data-nosnippet>147</a> JsonVariantRef::Object(values) =&gt; {
<a href=#148 id=148 data-nosnippet>148</a> <span class="kw">let </span><span class="kw-2">mut </span>object = builder.try_new_object()<span class="question-mark">?</span>;
<a href=#149 id=149 data-nosnippet>149</a> <span class="kw">for </span>(name, value) <span class="kw">in </span>values {
<a href=#150 id=150 data-nosnippet>150</a> append_json_variant_ref(<span class="kw-2">&amp;mut </span>ObjectFieldBuilder::new(name, <span class="kw-2">&amp;mut </span>object), value)<span class="question-mark">?</span>;
<a href=#151 id=151 data-nosnippet>151</a> }
<a href=#152 id=152 data-nosnippet>152</a> object.finish();
<a href=#153 id=153 data-nosnippet>153</a> }
<a href=#154 id=154 data-nosnippet>154</a> JsonVariantRef::Variant(value) =&gt; {
<a href=#155 id=155 data-nosnippet>155</a> <span class="kw">let </span>value = decode_json_variant(value)
<a href=#156 id=156 data-nosnippet>156</a> .map_err(|e| ArrowError::JsonError(<span class="macro">format!</span>(<span class="string">"Failed to decode JSONB: {e}"</span>)))<span class="question-mark">?</span>;
<a href=#157 id=157 data-nosnippet>157</a> append_json_value(builder, <span class="kw-2">&amp;</span>value)<span class="question-mark">?</span>;
<a href=#158 id=158 data-nosnippet>158</a> }
<a href=#159 id=159 data-nosnippet>159</a> }
<a href=#160 id=160 data-nosnippet>160</a> <span class="prelude-val">Ok</span>(())
<a href=#161 id=161 data-nosnippet>161</a>}
<a href=#162 id=162 data-nosnippet>162</a>
<a href=#163 id=163 data-nosnippet>163</a><span class="kw">fn </span>append_json_value(
<a href=#164 id=164 data-nosnippet>164</a> builder: <span class="kw-2">&amp;mut </span><span class="kw">impl </span>VariantBuilderExt,
<a href=#165 id=165 data-nosnippet>165</a> value: <span class="kw-2">&amp;</span>serde_json::Value,
<a href=#166 id=166 data-nosnippet>166</a>) -&gt; std::result::Result&lt;(), ArrowError&gt; {
<a href=#167 id=167 data-nosnippet>167</a> <span class="kw">match </span>value {
<a href=#168 id=168 data-nosnippet>168</a> serde_json::Value::Null =&gt; builder.append_value(Variant::Null),
<a href=#169 id=169 data-nosnippet>169</a> serde_json::Value::Bool(value) =&gt; builder.append_value(<span class="kw-2">*</span>value),
<a href=#170 id=170 data-nosnippet>170</a> serde_json::Value::Number(value) =&gt; {
<a href=#171 id=171 data-nosnippet>171</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(value) = value.as_i64() {
<a href=#172 id=172 data-nosnippet>172</a> builder.append_value(value);
<a href=#173 id=173 data-nosnippet>173</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(value) = value.as_u64() {
<a href=#174 id=174 data-nosnippet>174</a> append_large_u64(builder, value)<span class="question-mark">?</span>;
<a href=#175 id=175 data-nosnippet>175</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(value) = value.as_f64() {
<a href=#176 id=176 data-nosnippet>176</a> builder.append_value(value);
<a href=#177 id=177 data-nosnippet>177</a> } <span class="kw">else </span>{
<a href=#178 id=178 data-nosnippet>178</a> <span class="kw">return </span><span class="prelude-val">Err</span>(ArrowError::InvalidArgumentError(<span class="macro">format!</span>(
<a href=#179 id=179 data-nosnippet>179</a> <span class="string">"Failed to encode JSON number as Variant: {value}"
<a href=#180 id=180 data-nosnippet>180</a> </span>)));
<a href=#181 id=181 data-nosnippet>181</a> }
<a href=#182 id=182 data-nosnippet>182</a> }
<a href=#183 id=183 data-nosnippet>183</a> serde_json::Value::String(value) =&gt; builder.append_value(value.as_str()),
<a href=#184 id=184 data-nosnippet>184</a> serde_json::Value::Array(values) =&gt; {
<a href=#185 id=185 data-nosnippet>185</a> <span class="kw">let </span><span class="kw-2">mut </span>list = builder.try_new_list()<span class="question-mark">?</span>;
<a href=#186 id=186 data-nosnippet>186</a> <span class="kw">for </span>value <span class="kw">in </span>values {
<a href=#187 id=187 data-nosnippet>187</a> append_json_value(<span class="kw-2">&amp;mut </span>list, value)<span class="question-mark">?</span>;
<a href=#188 id=188 data-nosnippet>188</a> }
<a href=#189 id=189 data-nosnippet>189</a> list.finish();
<a href=#190 id=190 data-nosnippet>190</a> }
<a href=#191 id=191 data-nosnippet>191</a> serde_json::Value::Object(values) =&gt; {
<a href=#192 id=192 data-nosnippet>192</a> <span class="kw">let </span><span class="kw-2">mut </span>object = builder.try_new_object()<span class="question-mark">?</span>;
<a href=#193 id=193 data-nosnippet>193</a> <span class="kw">for </span>(name, value) <span class="kw">in </span>values {
<a href=#194 id=194 data-nosnippet>194</a> append_json_value(<span class="kw-2">&amp;mut </span>ObjectFieldBuilder::new(name, <span class="kw-2">&amp;mut </span>object), value)<span class="question-mark">?</span>;
<a href=#195 id=195 data-nosnippet>195</a> }
<a href=#196 id=196 data-nosnippet>196</a> object.finish();
<a href=#197 id=197 data-nosnippet>197</a> }
<a href=#198 id=198 data-nosnippet>198</a> }
<a href=#199 id=199 data-nosnippet>199</a> <span class="prelude-val">Ok</span>(())
<a href=#200 id=200 data-nosnippet>200</a>}
<a href=#201 id=201 data-nosnippet>201</a>
<a href=#202 id=202 data-nosnippet>202</a><span class="doccomment">/// Parquet Variant has no unsigned integer primitive. Treat u64 as i64 first, then use Decimal16
<a href=#203 id=203 data-nosnippet>203</a>/// to represent large (larger than i64::MAX) u64.
<a href=#204 id=204 data-nosnippet>204</a></span><span class="kw">fn </span>append_large_u64(
<a href=#205 id=205 data-nosnippet>205</a> builder: <span class="kw-2">&amp;mut </span><span class="kw">impl </span>VariantBuilderExt,
<a href=#206 id=206 data-nosnippet>206</a> value: u64,
<a href=#207 id=207 data-nosnippet>207</a>) -&gt; std::result::Result&lt;(), ArrowError&gt; {
<a href=#208 id=208 data-nosnippet>208</a> <span class="comment">// Parquet Variant has no unsigned integer primitive. Decimal16 preserves the full u64 range.
<a href=#209 id=209 data-nosnippet>209</a> </span><span class="kw">let </span>value = VariantDecimal16::try_new(value <span class="kw">as </span>i128, <span class="number">0</span>).map_err(|e| {
<a href=#210 id=210 data-nosnippet>210</a> ArrowError::InvalidArgumentError(<span class="macro">format!</span>(
<a href=#211 id=211 data-nosnippet>211</a> <span class="string">"Failed to encode JSON large integer as Variant Decimal16: {e}"
<a href=#212 id=212 data-nosnippet>212</a> </span>))
<a href=#213 id=213 data-nosnippet>213</a> })<span class="question-mark">?</span>;
<a href=#214 id=214 data-nosnippet>214</a> builder.append_value(value);
<a href=#215 id=215 data-nosnippet>215</a> <span class="prelude-val">Ok</span>(())
<a href=#216 id=216 data-nosnippet>216</a>}
<a href=#217 id=217 data-nosnippet>217</a>
<a href=#218 id=218 data-nosnippet>218</a><span class="doccomment">/// Decodes an unshredded Parquet Variant array into JSON values.
<a href=#219 id=219 data-nosnippet>219</a></span><span class="kw">pub fn </span>variant_to_json_values(array: <span class="kw-2">&amp;</span>ArrayRef) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;<span class="prelude-ty">Option</span>&lt;serde_json::Value&gt;&gt;&gt; {
<a href=#220 id=220 data-nosnippet>220</a> <span class="kw">let </span>variants = VariantArray::try_new(array.as_ref()).context(ArrowComputeSnafu)<span class="question-mark">?</span>;
<a href=#221 id=221 data-nosnippet>221</a> (<span class="number">0</span>..variants.len())
<a href=#222 id=222 data-nosnippet>222</a> .map(|i| {
<a href=#223 id=223 data-nosnippet>223</a> <span class="kw">if </span>variants.is_null(i) {
<a href=#224 id=224 data-nosnippet>224</a> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>)
<a href=#225 id=225 data-nosnippet>225</a> } <span class="kw">else </span>{
<a href=#226 id=226 data-nosnippet>226</a> variants
<a href=#227 id=227 data-nosnippet>227</a> .try_value(i)
<a href=#228 id=228 data-nosnippet>228</a> .and_then(|x| x.to_json_value())
<a href=#229 id=229 data-nosnippet>229</a> .context(ArrowComputeSnafu)
<a href=#230 id=230 data-nosnippet>230</a> .map(<span class="prelude-val">Some</span>)
<a href=#231 id=231 data-nosnippet>231</a> }
<a href=#232 id=232 data-nosnippet>232</a> })
<a href=#233 id=233 data-nosnippet>233</a> .collect()
<a href=#234 id=234 data-nosnippet>234</a>}
<a href=#235 id=235 data-nosnippet>235</a>
<a href=#236 id=236 data-nosnippet>236</a><span class="attr">#[cfg(test)]
<a href=#237 id=237 data-nosnippet>237</a></span><span class="kw">mod </span>tests {
<a href=#238 id=238 data-nosnippet>238</a> <span class="kw">use </span>serde_json::json;
<a href=#239 id=239 data-nosnippet>239</a>
<a href=#240 id=240 data-nosnippet>240</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#241 id=241 data-nosnippet>241</a>
<a href=#242 id=242 data-nosnippet>242</a> <span class="attr">#[test]
<a href=#243 id=243 data-nosnippet>243</a> </span><span class="kw">fn </span>test_variant_field_matches_canonical_layout() {
<a href=#244 id=244 data-nosnippet>244</a> <span class="kw">let </span>expected = VariantArrayBuilder::new(<span class="number">0</span>)
<a href=#245 id=245 data-nosnippet>245</a> .build()
<a href=#246 id=246 data-nosnippet>246</a> .field(<span class="string">"remainder"</span>)
<a href=#247 id=247 data-nosnippet>247</a> .with_nullable(<span class="bool-val">true</span>);
<a href=#248 id=248 data-nosnippet>248</a> <span class="macro">assert_eq!</span>(expected, variant_field(<span class="string">"remainder"</span>, <span class="bool-val">true</span>));
<a href=#249 id=249 data-nosnippet>249</a> }
<a href=#250 id=250 data-nosnippet>250</a>
<a href=#251 id=251 data-nosnippet>251</a> <span class="attr">#[test]
<a href=#252 id=252 data-nosnippet>252</a> </span><span class="kw">fn </span>test_variant_json_round_trip() -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#253 id=253 data-nosnippet>253</a> <span class="kw">let </span>values = <span class="macro">vec!</span>[
<a href=#254 id=254 data-nosnippet>254</a> <span class="prelude-val">None</span>,
<a href=#255 id=255 data-nosnippet>255</a> <span class="prelude-val">Some</span>(serde_json::Value::Null),
<a href=#256 id=256 data-nosnippet>256</a> <span class="prelude-val">Some</span>(<span class="macro">json!</span>({})),
<a href=#257 id=257 data-nosnippet>257</a> <span class="prelude-val">Some</span>(<span class="macro">json!</span>({<span class="string">"nested"</span>: {<span class="string">"items"</span>: [<span class="number">1</span>, <span class="string">"two"</span>, null]}})),
<a href=#258 id=258 data-nosnippet>258</a> <span class="prelude-val">Some</span>(<span class="macro">json!</span>({<span class="string">"unicode"</span>: <span class="string">"\u{503c}"</span>})),
<a href=#259 id=259 data-nosnippet>259</a> <span class="prelude-val">Some</span>(<span class="macro">json!</span>({<span class="string">"max_u64"</span>: u64::MAX})),
<a href=#260 id=260 data-nosnippet>260</a> ];
<a href=#261 id=261 data-nosnippet>261</a>
<a href=#262 id=262 data-nosnippet>262</a> <span class="kw">let </span>array = json_values_to_variant(<span class="kw-2">&amp;</span>values)<span class="question-mark">?</span>;
<a href=#263 id=263 data-nosnippet>263</a> <span class="macro">assert_eq!</span>(values, variant_to_json_values(<span class="kw-2">&amp;</span>array)<span class="question-mark">?</span>);
<a href=#264 id=264 data-nosnippet>264</a>
<a href=#265 id=265 data-nosnippet>265</a> <span class="kw">let </span>variants = values
<a href=#266 id=266 data-nosnippet>266</a> .clone()
<a href=#267 id=267 data-nosnippet>267</a> .into_iter()
<a href=#268 id=268 data-nosnippet>268</a> .map(|x| x.map(JsonVariant::from))
<a href=#269 id=269 data-nosnippet>269</a> .collect::&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;();
<a href=#270 id=270 data-nosnippet>270</a> <span class="kw">let </span>array = json_variants_to_variant(<span class="kw-2">&amp;</span>variants)<span class="question-mark">?</span>;
<a href=#271 id=271 data-nosnippet>271</a> <span class="macro">assert_eq!</span>(values, variant_to_json_values(<span class="kw-2">&amp;</span>array)<span class="question-mark">?</span>);
<a href=#272 id=272 data-nosnippet>272</a>
<a href=#273 id=273 data-nosnippet>273</a> <span class="kw">let </span>variants = [<span class="prelude-val">Some</span>(JsonVariant::Variant(
<a href=#274 id=274 data-nosnippet>274</a> jsonb::parse_value(<span class="string">br#"{"nested": true}"#</span>).unwrap().to_vec(),
<a href=#275 id=275 data-nosnippet>275</a> ))];
<a href=#276 id=276 data-nosnippet>276</a> <span class="kw">let </span>array = json_variants_to_variant(<span class="kw-2">&amp;</span>variants)<span class="question-mark">?</span>;
<a href=#277 id=277 data-nosnippet>277</a> <span class="macro">assert_eq!</span>(
<a href=#278 id=278 data-nosnippet>278</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="macro">json!</span>({<span class="string">"nested"</span>: <span class="bool-val">true</span>}))],
<a href=#279 id=279 data-nosnippet>279</a> variant_to_json_values(<span class="kw-2">&amp;</span>array)<span class="question-mark">?
<a href=#280 id=280 data-nosnippet>280</a> </span>);
<a href=#281 id=281 data-nosnippet>281</a> <span class="prelude-val">Ok</span>(())
<a href=#282 id=282 data-nosnippet>282</a> }
<a href=#283 id=283 data-nosnippet>283</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/list.rs`."><title>list.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>list.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::any::Any;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::sync::Arc;
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>arrow::array::{
<a href=#19 id=19 data-nosnippet>19</a> Array, ArrayData, ArrayRef, BooleanBufferBuilder, Int32BufferBuilder, ListArray,
<a href=#20 id=20 data-nosnippet>20</a>};
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>arrow::buffer::{Buffer, NullBuffer};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>arrow::datatypes::DataType <span class="kw">as </span>ArrowDataType;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>serde_json::Value <span class="kw">as </span>JsonValue;
<a href=#24 id=24 data-nosnippet>24</a>
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::data_type::{ConcreteDataType, DataType};
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::error::Result;
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::scalars::{ScalarVector, ScalarVectorBuilder};
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::types::ListType;
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::value::{ListValue, ListValueRef, Value, ValueRef};
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{<span class="self">self</span>, Helper, MutableVector, Validity, Vector, VectorRef};
<a href=#32 id=32 data-nosnippet>32</a>
<a href=#33 id=33 data-nosnippet>33</a><span class="doccomment">/// Vector of Lists, basically backed by Arrow's `ListArray`.
<a href=#34 id=34 data-nosnippet>34</a></span><span class="attr">#[derive(Debug, PartialEq)]
<a href=#35 id=35 data-nosnippet>35</a></span><span class="kw">pub struct </span>ListVector {
<a href=#36 id=36 data-nosnippet>36</a> array: ListArray,
<a href=#37 id=37 data-nosnippet>37</a> <span class="doccomment">/// The datatype of the items in the list.
<a href=#38 id=38 data-nosnippet>38</a> </span>item_type: Arc&lt;ConcreteDataType&gt;,
<a href=#39 id=39 data-nosnippet>39</a>}
<a href=#40 id=40 data-nosnippet>40</a>
<a href=#41 id=41 data-nosnippet>41</a><span class="kw">impl </span>ListVector {
<a href=#42 id=42 data-nosnippet>42</a> <span class="doccomment">/// Iterate elements as [VectorRef].
<a href=#43 id=43 data-nosnippet>43</a> </span><span class="kw">pub fn </span>values_iter(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw">impl </span>Iterator&lt;Item = <span class="prelude-ty">Result</span>&lt;<span class="prelude-ty">Option</span>&lt;VectorRef&gt;&gt;&gt; + <span class="lifetime">'_ </span>{
<a href=#44 id=44 data-nosnippet>44</a> <span class="self">self</span>.array
<a href=#45 id=45 data-nosnippet>45</a> .iter()
<a href=#46 id=46 data-nosnippet>46</a> .map(|value_opt| value_opt.map(Helper::try_into_vector).transpose())
<a href=#47 id=47 data-nosnippet>47</a> }
<a href=#48 id=48 data-nosnippet>48</a>
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>as_arrow(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Array {
<a href=#50 id=50 data-nosnippet>50</a> <span class="kw-2">&amp;</span><span class="self">self</span>.array
<a href=#51 id=51 data-nosnippet>51</a> }
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>item_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Arc&lt;ConcreteDataType&gt; {
<a href=#54 id=54 data-nosnippet>54</a> <span class="self">self</span>.item_type.clone()
<a href=#55 id=55 data-nosnippet>55</a> }
<a href=#56 id=56 data-nosnippet>56</a>}
<a href=#57 id=57 data-nosnippet>57</a>
<a href=#58 id=58 data-nosnippet>58</a><span class="kw">impl </span>Vector <span class="kw">for </span>ListVector {
<a href=#59 id=59 data-nosnippet>59</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#60 id=60 data-nosnippet>60</a> ConcreteDataType::List(ListType::new(<span class="self">self</span>.item_type()))
<a href=#61 id=61 data-nosnippet>61</a> }
<a href=#62 id=62 data-nosnippet>62</a>
<a href=#63 id=63 data-nosnippet>63</a> <span class="kw">fn </span>vector_type_name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#64 id=64 data-nosnippet>64</a> <span class="string">"ListVector"</span>.to_string()
<a href=#65 id=65 data-nosnippet>65</a> }
<a href=#66 id=66 data-nosnippet>66</a>
<a href=#67 id=67 data-nosnippet>67</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#68 id=68 data-nosnippet>68</a> <span class="self">self
<a href=#69 id=69 data-nosnippet>69</a> </span>}
<a href=#70 id=70 data-nosnippet>70</a>
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#72 id=72 data-nosnippet>72</a> <span class="self">self</span>.array.len()
<a href=#73 id=73 data-nosnippet>73</a> }
<a href=#74 id=74 data-nosnippet>74</a>
<a href=#75 id=75 data-nosnippet>75</a> <span class="kw">fn </span>to_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrayRef {
<a href=#76 id=76 data-nosnippet>76</a> Arc::new(<span class="self">self</span>.array.clone())
<a href=#77 id=77 data-nosnippet>77</a> }
<a href=#78 id=78 data-nosnippet>78</a>
<a href=#79 id=79 data-nosnippet>79</a> <span class="kw">fn </span>to_boxed_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Box&lt;<span class="kw">dyn </span>Array&gt; {
<a href=#80 id=80 data-nosnippet>80</a> Box::new(<span class="self">self</span>.array.clone())
<a href=#81 id=81 data-nosnippet>81</a> }
<a href=#82 id=82 data-nosnippet>82</a>
<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">fn </span>validity(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Validity {
<a href=#84 id=84 data-nosnippet>84</a> <span class="macro">vectors::impl_validity_for_vector!</span>(<span class="self">self</span>.array)
<a href=#85 id=85 data-nosnippet>85</a> }
<a href=#86 id=86 data-nosnippet>86</a>
<a href=#87 id=87 data-nosnippet>87</a> <span class="kw">fn </span>memory_size(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#88 id=88 data-nosnippet>88</a> <span class="self">self</span>.array.get_buffer_memory_size()
<a href=#89 id=89 data-nosnippet>89</a> }
<a href=#90 id=90 data-nosnippet>90</a>
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">fn </span>null_count(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#92 id=92 data-nosnippet>92</a> <span class="self">self</span>.array.null_count()
<a href=#93 id=93 data-nosnippet>93</a> }
<a href=#94 id=94 data-nosnippet>94</a>
<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">fn </span>is_null(<span class="kw-2">&amp;</span><span class="self">self</span>, row: usize) -&gt; bool {
<a href=#96 id=96 data-nosnippet>96</a> <span class="self">self</span>.array.is_null(row)
<a href=#97 id=97 data-nosnippet>97</a> }
<a href=#98 id=98 data-nosnippet>98</a>
<a href=#99 id=99 data-nosnippet>99</a> <span class="kw">fn </span>slice(<span class="kw-2">&amp;</span><span class="self">self</span>, offset: usize, length: usize) -&gt; VectorRef {
<a href=#100 id=100 data-nosnippet>100</a> Arc::new(<span class="self">Self </span>{
<a href=#101 id=101 data-nosnippet>101</a> array: <span class="self">self</span>.array.slice(offset, length),
<a href=#102 id=102 data-nosnippet>102</a> item_type: <span class="self">self</span>.item_type.clone(),
<a href=#103 id=103 data-nosnippet>103</a> })
<a href=#104 id=104 data-nosnippet>104</a> }
<a href=#105 id=105 data-nosnippet>105</a>
<a href=#106 id=106 data-nosnippet>106</a> <span class="kw">fn </span>get(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; Value {
<a href=#107 id=107 data-nosnippet>107</a> <span class="kw">if </span>!<span class="self">self</span>.array.is_valid(index) {
<a href=#108 id=108 data-nosnippet>108</a> <span class="kw">return </span>Value::Null;
<a href=#109 id=109 data-nosnippet>109</a> }
<a href=#110 id=110 data-nosnippet>110</a>
<a href=#111 id=111 data-nosnippet>111</a> <span class="kw">let </span>array = <span class="kw-2">&amp;</span><span class="self">self</span>.array.value(index);
<a href=#112 id=112 data-nosnippet>112</a> <span class="kw">let </span>vector = Helper::try_into_vector(array).unwrap_or_else(|<span class="kw">_</span>| {
<a href=#113 id=113 data-nosnippet>113</a> <span class="macro">panic!</span>(
<a href=#114 id=114 data-nosnippet>114</a> <span class="string">"arrow array with datatype {:?} cannot converted to our vector"</span>,
<a href=#115 id=115 data-nosnippet>115</a> array.data_type()
<a href=#116 id=116 data-nosnippet>116</a> )
<a href=#117 id=117 data-nosnippet>117</a> });
<a href=#118 id=118 data-nosnippet>118</a> <span class="kw">let </span>values = (<span class="number">0</span>..vector.len())
<a href=#119 id=119 data-nosnippet>119</a> .map(|i| vector.get(i))
<a href=#120 id=120 data-nosnippet>120</a> .collect::&lt;Vec&lt;Value&gt;&gt;();
<a href=#121 id=121 data-nosnippet>121</a> Value::List(ListValue::new(values, <span class="self">self</span>.item_type.clone()))
<a href=#122 id=122 data-nosnippet>122</a> }
<a href=#123 id=123 data-nosnippet>123</a>
<a href=#124 id=124 data-nosnippet>124</a> <span class="kw">fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; ValueRef&lt;<span class="lifetime">'_</span>&gt; {
<a href=#125 id=125 data-nosnippet>125</a> ValueRef::List(ListValueRef::Indexed {
<a href=#126 id=126 data-nosnippet>126</a> vector: <span class="self">self</span>,
<a href=#127 id=127 data-nosnippet>127</a> idx: index,
<a href=#128 id=128 data-nosnippet>128</a> })
<a href=#129 id=129 data-nosnippet>129</a> }
<a href=#130 id=130 data-nosnippet>130</a>}
<a href=#131 id=131 data-nosnippet>131</a>
<a href=#132 id=132 data-nosnippet>132</a><span class="kw">impl </span>Serializable <span class="kw">for </span>ListVector {
<a href=#133 id=133 data-nosnippet>133</a> <span class="kw">fn </span>serialize_to_json(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;JsonValue&gt;&gt; {
<a href=#134 id=134 data-nosnippet>134</a> <span class="self">self</span>.array
<a href=#135 id=135 data-nosnippet>135</a> .iter()
<a href=#136 id=136 data-nosnippet>136</a> .map(|v| <span class="kw">match </span>v {
<a href=#137 id=137 data-nosnippet>137</a> <span class="prelude-val">None </span>=&gt; <span class="prelude-val">Ok</span>(JsonValue::Null),
<a href=#138 id=138 data-nosnippet>138</a> <span class="prelude-val">Some</span>(v) =&gt; Helper::try_into_vector(v)
<a href=#139 id=139 data-nosnippet>139</a> .and_then(|v| v.serialize_to_json())
<a href=#140 id=140 data-nosnippet>140</a> .map(JsonValue::Array),
<a href=#141 id=141 data-nosnippet>141</a> })
<a href=#142 id=142 data-nosnippet>142</a> .collect()
<a href=#143 id=143 data-nosnippet>143</a> }
<a href=#144 id=144 data-nosnippet>144</a>}
<a href=#145 id=145 data-nosnippet>145</a>
<a href=#146 id=146 data-nosnippet>146</a><span class="kw">impl </span>From&lt;ListArray&gt; <span class="kw">for </span>ListVector {
<a href=#147 id=147 data-nosnippet>147</a> <span class="kw">fn </span>from(array: ListArray) -&gt; <span class="self">Self </span>{
<a href=#148 id=148 data-nosnippet>148</a> <span class="kw">let </span>item_type = Arc::new(ConcreteDataType::from_arrow_type(<span class="kw">match </span>array.data_type() {
<a href=#149 id=149 data-nosnippet>149</a> ArrowDataType::List(field) =&gt; field.data_type(),
<a href=#150 id=150 data-nosnippet>150</a> other =&gt; <span class="macro">panic!</span>(<span class="string">"Try to create ListVector from an arrow array with type {other:?}"</span>),
<a href=#151 id=151 data-nosnippet>151</a> }));
<a href=#152 id=152 data-nosnippet>152</a> <span class="self">Self </span>{ array, item_type }
<a href=#153 id=153 data-nosnippet>153</a> }
<a href=#154 id=154 data-nosnippet>154</a>}
<a href=#155 id=155 data-nosnippet>155</a>
<a href=#156 id=156 data-nosnippet>156</a><span class="macro">vectors::impl_try_from_arrow_array_for_vector!</span>(ListArray, ListVector);
<a href=#157 id=157 data-nosnippet>157</a>
<a href=#158 id=158 data-nosnippet>158</a><span class="kw">pub struct </span>ListIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#159 id=159 data-nosnippet>159</a> vector: <span class="kw-2">&amp;</span><span class="lifetime">'a </span>ListVector,
<a href=#160 id=160 data-nosnippet>160</a> idx: usize,
<a href=#161 id=161 data-nosnippet>161</a>}
<a href=#162 id=162 data-nosnippet>162</a>
<a href=#163 id=163 data-nosnippet>163</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; ListIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#164 id=164 data-nosnippet>164</a> <span class="kw">fn </span>new(vector: <span class="kw-2">&amp;</span><span class="lifetime">'a </span>ListVector) -&gt; ListIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#165 id=165 data-nosnippet>165</a> ListIter { vector, idx: <span class="number">0 </span>}
<a href=#166 id=166 data-nosnippet>166</a> }
<a href=#167 id=167 data-nosnippet>167</a>}
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; Iterator <span class="kw">for </span>ListIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#170 id=170 data-nosnippet>170</a> <span class="kw">type </span>Item = <span class="prelude-ty">Option</span>&lt;ListValueRef&lt;<span class="lifetime">'a</span>&gt;&gt;;
<a href=#171 id=171 data-nosnippet>171</a>
<a href=#172 id=172 data-nosnippet>172</a> <span class="attr">#[inline]
<a href=#173 id=173 data-nosnippet>173</a> </span><span class="kw">fn </span>next(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::Item&gt; {
<a href=#174 id=174 data-nosnippet>174</a> <span class="kw">if </span><span class="self">self</span>.idx &gt;= <span class="self">self</span>.vector.len() {
<a href=#175 id=175 data-nosnippet>175</a> <span class="kw">return </span><span class="prelude-val">None</span>;
<a href=#176 id=176 data-nosnippet>176</a> }
<a href=#177 id=177 data-nosnippet>177</a>
<a href=#178 id=178 data-nosnippet>178</a> <span class="kw">let </span>idx = <span class="self">self</span>.idx;
<a href=#179 id=179 data-nosnippet>179</a> <span class="self">self</span>.idx += <span class="number">1</span>;
<a href=#180 id=180 data-nosnippet>180</a>
<a href=#181 id=181 data-nosnippet>181</a> <span class="kw">if </span><span class="self">self</span>.vector.is_null(idx) {
<a href=#182 id=182 data-nosnippet>182</a> <span class="kw">return </span><span class="prelude-val">Some</span>(<span class="prelude-val">None</span>);
<a href=#183 id=183 data-nosnippet>183</a> }
<a href=#184 id=184 data-nosnippet>184</a>
<a href=#185 id=185 data-nosnippet>185</a> <span class="prelude-val">Some</span>(<span class="prelude-val">Some</span>(ListValueRef::Indexed {
<a href=#186 id=186 data-nosnippet>186</a> vector: <span class="self">self</span>.vector,
<a href=#187 id=187 data-nosnippet>187</a> idx,
<a href=#188 id=188 data-nosnippet>188</a> }))
<a href=#189 id=189 data-nosnippet>189</a> }
<a href=#190 id=190 data-nosnippet>190</a>
<a href=#191 id=191 data-nosnippet>191</a> <span class="attr">#[inline]
<a href=#192 id=192 data-nosnippet>192</a> </span><span class="kw">fn </span>size_hint(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; (usize, <span class="prelude-ty">Option</span>&lt;usize&gt;) {
<a href=#193 id=193 data-nosnippet>193</a> (<span class="self">self</span>.vector.len(), <span class="prelude-val">Some</span>(<span class="self">self</span>.vector.len()))
<a href=#194 id=194 data-nosnippet>194</a> }
<a href=#195 id=195 data-nosnippet>195</a>}
<a href=#196 id=196 data-nosnippet>196</a>
<a href=#197 id=197 data-nosnippet>197</a><span class="kw">impl </span>ScalarVector <span class="kw">for </span>ListVector {
<a href=#198 id=198 data-nosnippet>198</a> <span class="kw">type </span>OwnedItem = ListValue;
<a href=#199 id=199 data-nosnippet>199</a> <span class="kw">type </span>RefItem&lt;<span class="lifetime">'a</span>&gt; = ListValueRef&lt;<span class="lifetime">'a</span>&gt;;
<a href=#200 id=200 data-nosnippet>200</a> <span class="kw">type </span>Iter&lt;<span class="lifetime">'a</span>&gt; = ListIter&lt;<span class="lifetime">'a</span>&gt;;
<a href=#201 id=201 data-nosnippet>201</a> <span class="kw">type </span>Builder = ListVectorBuilder;
<a href=#202 id=202 data-nosnippet>202</a>
<a href=#203 id=203 data-nosnippet>203</a> <span class="kw">fn </span>get_data(<span class="kw-2">&amp;</span><span class="self">self</span>, idx: usize) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt; {
<a href=#204 id=204 data-nosnippet>204</a> <span class="kw">if </span><span class="self">self</span>.array.is_valid(idx) {
<a href=#205 id=205 data-nosnippet>205</a> <span class="prelude-val">Some</span>(ListValueRef::Indexed { vector: <span class="self">self</span>, idx })
<a href=#206 id=206 data-nosnippet>206</a> } <span class="kw">else </span>{
<a href=#207 id=207 data-nosnippet>207</a> <span class="prelude-val">None
<a href=#208 id=208 data-nosnippet>208</a> </span>}
<a href=#209 id=209 data-nosnippet>209</a> }
<a href=#210 id=210 data-nosnippet>210</a>
<a href=#211 id=211 data-nosnippet>211</a> <span class="kw">fn </span>iter_data(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::Iter&lt;<span class="lifetime">'_</span>&gt; {
<a href=#212 id=212 data-nosnippet>212</a> ListIter::new(<span class="self">self</span>)
<a href=#213 id=213 data-nosnippet>213</a> }
<a href=#214 id=214 data-nosnippet>214</a>}
<a href=#215 id=215 data-nosnippet>215</a>
<a href=#216 id=216 data-nosnippet>216</a><span class="comment">// Ports from arrow's GenericListBuilder.
<a href=#217 id=217 data-nosnippet>217</a>// See https://github.com/apache/arrow-rs/blob/94565bca99b5d9932a3e9a8e094aaf4e4384b1e5/arrow-array/src/builder/generic_list_builder.rs
<a href=#218 id=218 data-nosnippet>218</a></span><span class="doccomment">/// [ListVector] builder.
<a href=#219 id=219 data-nosnippet>219</a></span><span class="kw">pub struct </span>ListVectorBuilder {
<a href=#220 id=220 data-nosnippet>220</a> item_type: Arc&lt;ConcreteDataType&gt;,
<a href=#221 id=221 data-nosnippet>221</a> offsets_builder: Int32BufferBuilder,
<a href=#222 id=222 data-nosnippet>222</a> null_buffer_builder: NullBufferBuilder,
<a href=#223 id=223 data-nosnippet>223</a> values_builder: Box&lt;<span class="kw">dyn </span>MutableVector&gt;,
<a href=#224 id=224 data-nosnippet>224</a>}
<a href=#225 id=225 data-nosnippet>225</a>
<a href=#226 id=226 data-nosnippet>226</a><span class="kw">impl </span>ListVectorBuilder {
<a href=#227 id=227 data-nosnippet>227</a> <span class="doccomment">/// Creates a new [`ListVectorBuilder`]. `item_type` is the data type of the list item, `capacity`
<a href=#228 id=228 data-nosnippet>228</a> /// is the number of items to pre-allocate space for in this builder.
<a href=#229 id=229 data-nosnippet>229</a> </span><span class="kw">pub fn </span>with_type_capacity(
<a href=#230 id=230 data-nosnippet>230</a> item_type: Arc&lt;ConcreteDataType&gt;,
<a href=#231 id=231 data-nosnippet>231</a> capacity: usize,
<a href=#232 id=232 data-nosnippet>232</a> ) -&gt; ListVectorBuilder {
<a href=#233 id=233 data-nosnippet>233</a> <span class="kw">let </span><span class="kw-2">mut </span>offsets_builder = Int32BufferBuilder::new(capacity + <span class="number">1</span>);
<a href=#234 id=234 data-nosnippet>234</a> offsets_builder.append(<span class="number">0</span>);
<a href=#235 id=235 data-nosnippet>235</a> <span class="comment">// The actual required capacity might be greater than the capacity of the `ListVector`
<a href=#236 id=236 data-nosnippet>236</a> // if the child vector has more than one element.
<a href=#237 id=237 data-nosnippet>237</a> </span><span class="kw">let </span>values_builder = item_type.create_mutable_vector(capacity);
<a href=#238 id=238 data-nosnippet>238</a>
<a href=#239 id=239 data-nosnippet>239</a> ListVectorBuilder {
<a href=#240 id=240 data-nosnippet>240</a> item_type,
<a href=#241 id=241 data-nosnippet>241</a> offsets_builder,
<a href=#242 id=242 data-nosnippet>242</a> null_buffer_builder: NullBufferBuilder::new(capacity),
<a href=#243 id=243 data-nosnippet>243</a> values_builder,
<a href=#244 id=244 data-nosnippet>244</a> }
<a href=#245 id=245 data-nosnippet>245</a> }
<a href=#246 id=246 data-nosnippet>246</a>
<a href=#247 id=247 data-nosnippet>247</a> <span class="doccomment">/// Finish the current variable-length list vector slot.
<a href=#248 id=248 data-nosnippet>248</a> </span><span class="kw">fn </span>finish_list(<span class="kw-2">&amp;mut </span><span class="self">self</span>, is_valid: bool) {
<a href=#249 id=249 data-nosnippet>249</a> <span class="self">self</span>.offsets_builder
<a href=#250 id=250 data-nosnippet>250</a> .append(i32::try_from(<span class="self">self</span>.values_builder.len()).unwrap());
<a href=#251 id=251 data-nosnippet>251</a> <span class="self">self</span>.null_buffer_builder.append(is_valid);
<a href=#252 id=252 data-nosnippet>252</a> }
<a href=#253 id=253 data-nosnippet>253</a>
<a href=#254 id=254 data-nosnippet>254</a> <span class="kw">fn </span>push_list_value(<span class="kw-2">&amp;mut </span><span class="self">self</span>, list_value: <span class="kw-2">&amp;</span>ListValue) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#255 id=255 data-nosnippet>255</a> <span class="kw">for </span>v <span class="kw">in </span>list_value.items() {
<a href=#256 id=256 data-nosnippet>256</a> <span class="self">self</span>.values_builder.try_push_value_ref(<span class="kw-2">&amp;</span>v.as_value_ref())<span class="question-mark">?</span>;
<a href=#257 id=257 data-nosnippet>257</a> }
<a href=#258 id=258 data-nosnippet>258</a>
<a href=#259 id=259 data-nosnippet>259</a> <span class="self">self</span>.finish_list(<span class="bool-val">true</span>);
<a href=#260 id=260 data-nosnippet>260</a> <span class="prelude-val">Ok</span>(())
<a href=#261 id=261 data-nosnippet>261</a> }
<a href=#262 id=262 data-nosnippet>262</a>}
<a href=#263 id=263 data-nosnippet>263</a>
<a href=#264 id=264 data-nosnippet>264</a><span class="kw">impl </span>MutableVector <span class="kw">for </span>ListVectorBuilder {
<a href=#265 id=265 data-nosnippet>265</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#266 id=266 data-nosnippet>266</a> ConcreteDataType::list_datatype(<span class="self">self</span>.item_type.clone())
<a href=#267 id=267 data-nosnippet>267</a> }
<a href=#268 id=268 data-nosnippet>268</a>
<a href=#269 id=269 data-nosnippet>269</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#270 id=270 data-nosnippet>270</a> <span class="self">self</span>.null_buffer_builder.len()
<a href=#271 id=271 data-nosnippet>271</a> }
<a href=#272 id=272 data-nosnippet>272</a>
<a href=#273 id=273 data-nosnippet>273</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#274 id=274 data-nosnippet>274</a> <span class="self">self
<a href=#275 id=275 data-nosnippet>275</a> </span>}
<a href=#276 id=276 data-nosnippet>276</a>
<a href=#277 id=277 data-nosnippet>277</a> <span class="kw">fn </span>as_mut_any(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span><span class="kw">dyn </span>Any {
<a href=#278 id=278 data-nosnippet>278</a> <span class="self">self
<a href=#279 id=279 data-nosnippet>279</a> </span>}
<a href=#280 id=280 data-nosnippet>280</a>
<a href=#281 id=281 data-nosnippet>281</a> <span class="kw">fn </span>to_vector(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; VectorRef {
<a href=#282 id=282 data-nosnippet>282</a> Arc::new(<span class="self">self</span>.finish())
<a href=#283 id=283 data-nosnippet>283</a> }
<a href=#284 id=284 data-nosnippet>284</a>
<a href=#285 id=285 data-nosnippet>285</a> <span class="kw">fn </span>to_vector_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; VectorRef {
<a href=#286 id=286 data-nosnippet>286</a> Arc::new(<span class="self">self</span>.finish_cloned())
<a href=#287 id=287 data-nosnippet>287</a> }
<a href=#288 id=288 data-nosnippet>288</a>
<a href=#289 id=289 data-nosnippet>289</a> <span class="kw">fn </span>try_push_value_ref(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#290 id=290 data-nosnippet>290</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(list_ref) = value.try_into_list()<span class="question-mark">? </span>{
<a href=#291 id=291 data-nosnippet>291</a> <span class="kw">match </span>list_ref {
<a href=#292 id=292 data-nosnippet>292</a> ListValueRef::Indexed { vector, idx } =&gt; <span class="kw">match </span>vector.get(idx).as_list()<span class="question-mark">? </span>{
<a href=#293 id=293 data-nosnippet>293</a> <span class="prelude-val">Some</span>(list_value) =&gt; <span class="self">self</span>.push_list_value(list_value)<span class="question-mark">?</span>,
<a href=#294 id=294 data-nosnippet>294</a> <span class="prelude-val">None </span>=&gt; <span class="self">self</span>.push_null(),
<a href=#295 id=295 data-nosnippet>295</a> },
<a href=#296 id=296 data-nosnippet>296</a> ListValueRef::Ref { val } =&gt; <span class="self">self</span>.push_list_value(val)<span class="question-mark">?</span>,
<a href=#297 id=297 data-nosnippet>297</a> ListValueRef::RefList { val, item_datatype } =&gt; {
<a href=#298 id=298 data-nosnippet>298</a> <span class="kw">let </span>list_value = ListValue::new(
<a href=#299 id=299 data-nosnippet>299</a> val.iter().map(|v| Value::from(v.clone())).collect(),
<a href=#300 id=300 data-nosnippet>300</a> item_datatype.clone(),
<a href=#301 id=301 data-nosnippet>301</a> );
<a href=#302 id=302 data-nosnippet>302</a> <span class="self">self</span>.push_list_value(<span class="kw-2">&amp;</span>list_value)<span class="question-mark">?</span>;
<a href=#303 id=303 data-nosnippet>303</a> }
<a href=#304 id=304 data-nosnippet>304</a> }
<a href=#305 id=305 data-nosnippet>305</a> } <span class="kw">else </span>{
<a href=#306 id=306 data-nosnippet>306</a> <span class="self">self</span>.push_null();
<a href=#307 id=307 data-nosnippet>307</a> }
<a href=#308 id=308 data-nosnippet>308</a>
<a href=#309 id=309 data-nosnippet>309</a> <span class="prelude-val">Ok</span>(())
<a href=#310 id=310 data-nosnippet>310</a> }
<a href=#311 id=311 data-nosnippet>311</a>
<a href=#312 id=312 data-nosnippet>312</a> <span class="kw">fn </span>extend_slice_of(<span class="kw-2">&amp;mut </span><span class="self">self</span>, vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector, offset: usize, length: usize) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#313 id=313 data-nosnippet>313</a> <span class="kw">for </span>idx <span class="kw">in </span>offset..offset + length {
<a href=#314 id=314 data-nosnippet>314</a> <span class="kw">let </span>value = vector.get_ref(idx);
<a href=#315 id=315 data-nosnippet>315</a> <span class="self">self</span>.try_push_value_ref(<span class="kw-2">&amp;</span>value)<span class="question-mark">?</span>;
<a href=#316 id=316 data-nosnippet>316</a> }
<a href=#317 id=317 data-nosnippet>317</a>
<a href=#318 id=318 data-nosnippet>318</a> <span class="prelude-val">Ok</span>(())
<a href=#319 id=319 data-nosnippet>319</a> }
<a href=#320 id=320 data-nosnippet>320</a>
<a href=#321 id=321 data-nosnippet>321</a> <span class="kw">fn </span>push_null(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#322 id=322 data-nosnippet>322</a> <span class="self">self</span>.finish_list(<span class="bool-val">false</span>);
<a href=#323 id=323 data-nosnippet>323</a> }
<a href=#324 id=324 data-nosnippet>324</a>}
<a href=#325 id=325 data-nosnippet>325</a>
<a href=#326 id=326 data-nosnippet>326</a><span class="kw">impl </span>ScalarVectorBuilder <span class="kw">for </span>ListVectorBuilder {
<a href=#327 id=327 data-nosnippet>327</a> <span class="kw">type </span>VectorType = ListVector;
<a href=#328 id=328 data-nosnippet>328</a>
<a href=#329 id=329 data-nosnippet>329</a> <span class="kw">fn </span>with_capacity(_capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#330 id=330 data-nosnippet>330</a> <span class="macro">panic!</span>(<span class="string">"Must use ListVectorBuilder::with_type_capacity()"</span>);
<a href=#331 id=331 data-nosnippet>331</a> }
<a href=#332 id=332 data-nosnippet>332</a>
<a href=#333 id=333 data-nosnippet>333</a> <span class="kw">fn </span>push(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="prelude-ty">Option</span>&lt;&lt;<span class="self">Self</span>::VectorType <span class="kw">as </span>ScalarVector&gt;::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt;) {
<a href=#334 id=334 data-nosnippet>334</a> <span class="comment">// We expect the input ListValue has the same inner type as the builder when using
<a href=#335 id=335 data-nosnippet>335</a> // push(), so just panic if `push_value_ref()` returns error, which indicate an
<a href=#336 id=336 data-nosnippet>336</a> // invalid input value type.
<a href=#337 id=337 data-nosnippet>337</a> </span><span class="self">self</span>.try_push_value_ref(<span class="kw-2">&amp;</span>value.into()).unwrap_or_else(|e| {
<a href=#338 id=338 data-nosnippet>338</a> <span class="macro">panic!</span>(
<a href=#339 id=339 data-nosnippet>339</a> <span class="string">"Failed to push value, expect value type {:?}, err:{}"</span>,
<a href=#340 id=340 data-nosnippet>340</a> <span class="self">self</span>.item_type, e
<a href=#341 id=341 data-nosnippet>341</a> );
<a href=#342 id=342 data-nosnippet>342</a> });
<a href=#343 id=343 data-nosnippet>343</a> }
<a href=#344 id=344 data-nosnippet>344</a>
<a href=#345 id=345 data-nosnippet>345</a> <span class="kw">fn </span>finish(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#346 id=346 data-nosnippet>346</a> <span class="kw">let </span>len = <span class="self">self</span>.len();
<a href=#347 id=347 data-nosnippet>347</a> <span class="kw">let </span>values_vector = <span class="self">self</span>.values_builder.to_vector();
<a href=#348 id=348 data-nosnippet>348</a> <span class="kw">let </span>values_arr = values_vector.to_arrow_array();
<a href=#349 id=349 data-nosnippet>349</a> <span class="kw">let </span>values_data = values_arr.to_data();
<a href=#350 id=350 data-nosnippet>350</a>
<a href=#351 id=351 data-nosnippet>351</a> <span class="kw">let </span>offset_buffer = <span class="self">self</span>.offsets_builder.finish();
<a href=#352 id=352 data-nosnippet>352</a> <span class="kw">let </span>null_bit_buffer = <span class="self">self</span>.null_buffer_builder.finish();
<a href=#353 id=353 data-nosnippet>353</a> <span class="comment">// Re-initialize the offsets_builder.
<a href=#354 id=354 data-nosnippet>354</a> </span><span class="self">self</span>.offsets_builder.append(<span class="number">0</span>);
<a href=#355 id=355 data-nosnippet>355</a> <span class="kw">let </span>data_type = ConcreteDataType::list_datatype(<span class="self">self</span>.item_type.clone()).as_arrow_type();
<a href=#356 id=356 data-nosnippet>356</a> <span class="kw">let </span>array_data_builder = ArrayData::builder(data_type)
<a href=#357 id=357 data-nosnippet>357</a> .len(len)
<a href=#358 id=358 data-nosnippet>358</a> .add_buffer(offset_buffer)
<a href=#359 id=359 data-nosnippet>359</a> .add_child_data(values_data)
<a href=#360 id=360 data-nosnippet>360</a> .null_bit_buffer(null_bit_buffer);
<a href=#361 id=361 data-nosnippet>361</a>
<a href=#362 id=362 data-nosnippet>362</a> <span class="kw">let </span>array_data = <span class="kw">unsafe </span>{ array_data_builder.build_unchecked() };
<a href=#363 id=363 data-nosnippet>363</a> <span class="kw">let </span>array = ListArray::from(array_data);
<a href=#364 id=364 data-nosnippet>364</a>
<a href=#365 id=365 data-nosnippet>365</a> ListVector {
<a href=#366 id=366 data-nosnippet>366</a> array,
<a href=#367 id=367 data-nosnippet>367</a> item_type: <span class="self">self</span>.item_type.clone(),
<a href=#368 id=368 data-nosnippet>368</a> }
<a href=#369 id=369 data-nosnippet>369</a> }
<a href=#370 id=370 data-nosnippet>370</a>
<a href=#371 id=371 data-nosnippet>371</a> <span class="comment">// Port from https://github.com/apache/arrow-rs/blob/ef6932f31e243d8545e097569653c8d3f1365b4d/arrow-array/src/builder/generic_list_builder.rs#L302-L325
<a href=#372 id=372 data-nosnippet>372</a> </span><span class="kw">fn </span>finish_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#373 id=373 data-nosnippet>373</a> <span class="kw">let </span>len = <span class="self">self</span>.len();
<a href=#374 id=374 data-nosnippet>374</a> <span class="kw">let </span>values_vector = <span class="self">self</span>.values_builder.to_vector_cloned();
<a href=#375 id=375 data-nosnippet>375</a> <span class="kw">let </span>values_arr = values_vector.to_arrow_array();
<a href=#376 id=376 data-nosnippet>376</a> <span class="kw">let </span>values_data = values_arr.to_data();
<a href=#377 id=377 data-nosnippet>377</a>
<a href=#378 id=378 data-nosnippet>378</a> <span class="kw">let </span>offset_buffer = Buffer::from_slice_ref(<span class="self">self</span>.offsets_builder.as_slice());
<a href=#379 id=379 data-nosnippet>379</a> <span class="kw">let </span>nulls = <span class="self">self</span>.null_buffer_builder.finish_cloned();
<a href=#380 id=380 data-nosnippet>380</a>
<a href=#381 id=381 data-nosnippet>381</a> <span class="kw">let </span>data_type = ConcreteDataType::list_datatype(<span class="self">self</span>.item_type.clone()).as_arrow_type();
<a href=#382 id=382 data-nosnippet>382</a> <span class="kw">let </span>array_data_builder = ArrayData::builder(data_type)
<a href=#383 id=383 data-nosnippet>383</a> .len(len)
<a href=#384 id=384 data-nosnippet>384</a> .add_buffer(offset_buffer)
<a href=#385 id=385 data-nosnippet>385</a> .add_child_data(values_data)
<a href=#386 id=386 data-nosnippet>386</a> .nulls(nulls);
<a href=#387 id=387 data-nosnippet>387</a>
<a href=#388 id=388 data-nosnippet>388</a> <span class="kw">let </span>array_data = <span class="kw">unsafe </span>{ array_data_builder.build_unchecked() };
<a href=#389 id=389 data-nosnippet>389</a> <span class="kw">let </span>array = ListArray::from(array_data);
<a href=#390 id=390 data-nosnippet>390</a>
<a href=#391 id=391 data-nosnippet>391</a> ListVector {
<a href=#392 id=392 data-nosnippet>392</a> array,
<a href=#393 id=393 data-nosnippet>393</a> item_type: <span class="self">self</span>.item_type.clone(),
<a href=#394 id=394 data-nosnippet>394</a> }
<a href=#395 id=395 data-nosnippet>395</a> }
<a href=#396 id=396 data-nosnippet>396</a>}
<a href=#397 id=397 data-nosnippet>397</a>
<a href=#398 id=398 data-nosnippet>398</a><span class="comment">// Ports from https://github.com/apache/arrow-rs/blob/94565bca99b5d9932a3e9a8e094aaf4e4384b1e5/arrow-array/src/builder/null_buffer_builder.rs
<a href=#399 id=399 data-nosnippet>399</a></span><span class="doccomment">/// Builder for creating the null bit buffer.
<a href=#400 id=400 data-nosnippet>400</a>/// This builder only materializes the buffer when we append `false`.
<a href=#401 id=401 data-nosnippet>401</a>/// If you only append `true`s to the builder, what you get will be
<a href=#402 id=402 data-nosnippet>402</a>/// `None` when calling [`finish`](#method.finish).
<a href=#403 id=403 data-nosnippet>403</a>/// This optimization is **very** important for the performance.
<a href=#404 id=404 data-nosnippet>404</a></span><span class="attr">#[derive(Debug)]
<a href=#405 id=405 data-nosnippet>405</a></span><span class="kw">struct </span>NullBufferBuilder {
<a href=#406 id=406 data-nosnippet>406</a> bitmap_builder: <span class="prelude-ty">Option</span>&lt;BooleanBufferBuilder&gt;,
<a href=#407 id=407 data-nosnippet>407</a> <span class="doccomment">/// Store the length of the buffer before materializing.
<a href=#408 id=408 data-nosnippet>408</a> </span>len: usize,
<a href=#409 id=409 data-nosnippet>409</a> capacity: usize,
<a href=#410 id=410 data-nosnippet>410</a>}
<a href=#411 id=411 data-nosnippet>411</a>
<a href=#412 id=412 data-nosnippet>412</a><span class="kw">impl </span>NullBufferBuilder {
<a href=#413 id=413 data-nosnippet>413</a> <span class="doccomment">/// Creates a new empty builder.
<a href=#414 id=414 data-nosnippet>414</a> /// `capacity` is the number of bits in the null buffer.
<a href=#415 id=415 data-nosnippet>415</a> </span><span class="kw">fn </span>new(capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#416 id=416 data-nosnippet>416</a> <span class="self">Self </span>{
<a href=#417 id=417 data-nosnippet>417</a> bitmap_builder: <span class="prelude-val">None</span>,
<a href=#418 id=418 data-nosnippet>418</a> len: <span class="number">0</span>,
<a href=#419 id=419 data-nosnippet>419</a> capacity,
<a href=#420 id=420 data-nosnippet>420</a> }
<a href=#421 id=421 data-nosnippet>421</a> }
<a href=#422 id=422 data-nosnippet>422</a>
<a href=#423 id=423 data-nosnippet>423</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#424 id=424 data-nosnippet>424</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(b) = <span class="kw-2">&amp;</span><span class="self">self</span>.bitmap_builder {
<a href=#425 id=425 data-nosnippet>425</a> b.len()
<a href=#426 id=426 data-nosnippet>426</a> } <span class="kw">else </span>{
<a href=#427 id=427 data-nosnippet>427</a> <span class="self">self</span>.len
<a href=#428 id=428 data-nosnippet>428</a> }
<a href=#429 id=429 data-nosnippet>429</a> }
<a href=#430 id=430 data-nosnippet>430</a>
<a href=#431 id=431 data-nosnippet>431</a> <span class="doccomment">/// Appends a `true` into the builder
<a href=#432 id=432 data-nosnippet>432</a> /// to indicate that this item is not null.
<a href=#433 id=433 data-nosnippet>433</a> </span><span class="attr">#[inline]
<a href=#434 id=434 data-nosnippet>434</a> </span><span class="kw">fn </span>append_non_null(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#435 id=435 data-nosnippet>435</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(buf) = <span class="self">self</span>.bitmap_builder.as_mut() {
<a href=#436 id=436 data-nosnippet>436</a> buf.append(<span class="bool-val">true</span>)
<a href=#437 id=437 data-nosnippet>437</a> } <span class="kw">else </span>{
<a href=#438 id=438 data-nosnippet>438</a> <span class="self">self</span>.len += <span class="number">1</span>;
<a href=#439 id=439 data-nosnippet>439</a> }
<a href=#440 id=440 data-nosnippet>440</a> }
<a href=#441 id=441 data-nosnippet>441</a>
<a href=#442 id=442 data-nosnippet>442</a> <span class="doccomment">/// Appends a `false` into the builder
<a href=#443 id=443 data-nosnippet>443</a> /// to indicate that this item is null.
<a href=#444 id=444 data-nosnippet>444</a> </span><span class="attr">#[inline]
<a href=#445 id=445 data-nosnippet>445</a> </span><span class="kw">fn </span>append_null(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#446 id=446 data-nosnippet>446</a> <span class="self">self</span>.materialize_if_needed();
<a href=#447 id=447 data-nosnippet>447</a> <span class="self">self</span>.bitmap_builder.as_mut().unwrap().append(<span class="bool-val">false</span>);
<a href=#448 id=448 data-nosnippet>448</a> }
<a href=#449 id=449 data-nosnippet>449</a>
<a href=#450 id=450 data-nosnippet>450</a> <span class="doccomment">/// Appends a boolean value into the builder.
<a href=#451 id=451 data-nosnippet>451</a> </span><span class="attr">#[inline]
<a href=#452 id=452 data-nosnippet>452</a> </span><span class="kw">fn </span>append(<span class="kw-2">&amp;mut </span><span class="self">self</span>, not_null: bool) {
<a href=#453 id=453 data-nosnippet>453</a> <span class="kw">if </span>not_null {
<a href=#454 id=454 data-nosnippet>454</a> <span class="self">self</span>.append_non_null()
<a href=#455 id=455 data-nosnippet>455</a> } <span class="kw">else </span>{
<a href=#456 id=456 data-nosnippet>456</a> <span class="self">self</span>.append_null()
<a href=#457 id=457 data-nosnippet>457</a> }
<a href=#458 id=458 data-nosnippet>458</a> }
<a href=#459 id=459 data-nosnippet>459</a>
<a href=#460 id=460 data-nosnippet>460</a> <span class="doccomment">/// Builds the null buffer and resets the builder.
<a href=#461 id=461 data-nosnippet>461</a> /// Returns `None` if the builder only contains `true`s.
<a href=#462 id=462 data-nosnippet>462</a> </span><span class="kw">fn </span>finish(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;Buffer&gt; {
<a href=#463 id=463 data-nosnippet>463</a> <span class="kw">let </span>buf = <span class="self">self</span>.bitmap_builder.take().map(Into::into);
<a href=#464 id=464 data-nosnippet>464</a> <span class="self">self</span>.len = <span class="number">0</span>;
<a href=#465 id=465 data-nosnippet>465</a> buf
<a href=#466 id=466 data-nosnippet>466</a> }
<a href=#467 id=467 data-nosnippet>467</a>
<a href=#468 id=468 data-nosnippet>468</a> <span class="doccomment">/// Builds the [NullBuffer] without resetting the builder.
<a href=#469 id=469 data-nosnippet>469</a> </span><span class="kw">fn </span>finish_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;NullBuffer&gt; {
<a href=#470 id=470 data-nosnippet>470</a> <span class="kw">let </span>buffer = <span class="self">self</span>.bitmap_builder.as_ref()<span class="question-mark">?</span>.finish_cloned();
<a href=#471 id=471 data-nosnippet>471</a> <span class="prelude-val">Some</span>(NullBuffer::new(buffer))
<a href=#472 id=472 data-nosnippet>472</a> }
<a href=#473 id=473 data-nosnippet>473</a>
<a href=#474 id=474 data-nosnippet>474</a> <span class="attr">#[inline]
<a href=#475 id=475 data-nosnippet>475</a> </span><span class="kw">fn </span>materialize_if_needed(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#476 id=476 data-nosnippet>476</a> <span class="kw">if </span><span class="self">self</span>.bitmap_builder.is_none() {
<a href=#477 id=477 data-nosnippet>477</a> <span class="self">self</span>.materialize()
<a href=#478 id=478 data-nosnippet>478</a> }
<a href=#479 id=479 data-nosnippet>479</a> }
<a href=#480 id=480 data-nosnippet>480</a>
<a href=#481 id=481 data-nosnippet>481</a> <span class="attr">#[cold]
<a href=#482 id=482 data-nosnippet>482</a> </span><span class="kw">fn </span>materialize(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#483 id=483 data-nosnippet>483</a> <span class="kw">if </span><span class="self">self</span>.bitmap_builder.is_none() {
<a href=#484 id=484 data-nosnippet>484</a> <span class="kw">let </span><span class="kw-2">mut </span>b = BooleanBufferBuilder::new(<span class="self">self</span>.len.max(<span class="self">self</span>.capacity));
<a href=#485 id=485 data-nosnippet>485</a> b.append_n(<span class="self">self</span>.len, <span class="bool-val">true</span>);
<a href=#486 id=486 data-nosnippet>486</a> <span class="self">self</span>.bitmap_builder = <span class="prelude-val">Some</span>(b);
<a href=#487 id=487 data-nosnippet>487</a> }
<a href=#488 id=488 data-nosnippet>488</a> }
<a href=#489 id=489 data-nosnippet>489</a>}
<a href=#490 id=490 data-nosnippet>490</a>
<a href=#491 id=491 data-nosnippet>491</a><span class="attr">#[cfg(test)]
<a href=#492 id=492 data-nosnippet>492</a></span><span class="kw">pub mod </span>tests {
<a href=#493 id=493 data-nosnippet>493</a> <span class="kw">use </span>arrow::array::{Int32Array, Int32Builder, ListBuilder};
<a href=#494 id=494 data-nosnippet>494</a> <span class="kw">use </span>serde_json::json;
<a href=#495 id=495 data-nosnippet>495</a>
<a href=#496 id=496 data-nosnippet>496</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#497 id=497 data-nosnippet>497</a> <span class="kw">use </span><span class="kw">crate</span>::scalars::ScalarRef;
<a href=#498 id=498 data-nosnippet>498</a> <span class="kw">use </span><span class="kw">crate</span>::types::ListType;
<a href=#499 id=499 data-nosnippet>499</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::Int32Vector;
<a href=#500 id=500 data-nosnippet>500</a>
<a href=#501 id=501 data-nosnippet>501</a> <span class="kw">pub fn </span>new_list_vector(data: <span class="kw-2">&amp;</span>[<span class="prelude-ty">Option</span>&lt;Vec&lt;<span class="prelude-ty">Option</span>&lt;i32&gt;&gt;&gt;]) -&gt; ListVector {
<a href=#502 id=502 data-nosnippet>502</a> <span class="kw">let </span>item_type = Arc::new(ConcreteDataType::int32_datatype());
<a href=#503 id=503 data-nosnippet>503</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = ListVectorBuilder::with_type_capacity(item_type.clone(), <span class="number">8</span>);
<a href=#504 id=504 data-nosnippet>504</a> <span class="kw">for </span>vec_opt <span class="kw">in </span>data {
<a href=#505 id=505 data-nosnippet>505</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(vec) = vec_opt {
<a href=#506 id=506 data-nosnippet>506</a> <span class="kw">let </span>values = vec.iter().map(|v| Value::from(<span class="kw-2">*</span>v)).collect();
<a href=#507 id=507 data-nosnippet>507</a> <span class="kw">let </span>list_value = ListValue::new(values, item_type.clone());
<a href=#508 id=508 data-nosnippet>508</a>
<a href=#509 id=509 data-nosnippet>509</a> builder.push(<span class="prelude-val">Some</span>(ListValueRef::Ref { val: <span class="kw-2">&amp;</span>list_value }));
<a href=#510 id=510 data-nosnippet>510</a> } <span class="kw">else </span>{
<a href=#511 id=511 data-nosnippet>511</a> builder.push(<span class="prelude-val">None</span>);
<a href=#512 id=512 data-nosnippet>512</a> }
<a href=#513 id=513 data-nosnippet>513</a> }
<a href=#514 id=514 data-nosnippet>514</a>
<a href=#515 id=515 data-nosnippet>515</a> builder.finish()
<a href=#516 id=516 data-nosnippet>516</a> }
<a href=#517 id=517 data-nosnippet>517</a>
<a href=#518 id=518 data-nosnippet>518</a> <span class="kw">fn </span>new_list_array(data: <span class="kw-2">&amp;</span>[<span class="prelude-ty">Option</span>&lt;Vec&lt;<span class="prelude-ty">Option</span>&lt;i32&gt;&gt;&gt;]) -&gt; ListArray {
<a href=#519 id=519 data-nosnippet>519</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = ListBuilder::new(Int32Builder::new());
<a href=#520 id=520 data-nosnippet>520</a> <span class="kw">for </span>vec_opt <span class="kw">in </span>data {
<a href=#521 id=521 data-nosnippet>521</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(vec) = vec_opt {
<a href=#522 id=522 data-nosnippet>522</a> <span class="kw">for </span>value_opt <span class="kw">in </span>vec {
<a href=#523 id=523 data-nosnippet>523</a> builder.values().append_option(<span class="kw-2">*</span>value_opt);
<a href=#524 id=524 data-nosnippet>524</a> }
<a href=#525 id=525 data-nosnippet>525</a>
<a href=#526 id=526 data-nosnippet>526</a> builder.append(<span class="bool-val">true</span>);
<a href=#527 id=527 data-nosnippet>527</a> } <span class="kw">else </span>{
<a href=#528 id=528 data-nosnippet>528</a> builder.append(<span class="bool-val">false</span>);
<a href=#529 id=529 data-nosnippet>529</a> }
<a href=#530 id=530 data-nosnippet>530</a> }
<a href=#531 id=531 data-nosnippet>531</a>
<a href=#532 id=532 data-nosnippet>532</a> builder.finish()
<a href=#533 id=533 data-nosnippet>533</a> }
<a href=#534 id=534 data-nosnippet>534</a>
<a href=#535 id=535 data-nosnippet>535</a> <span class="attr">#[test]
<a href=#536 id=536 data-nosnippet>536</a> </span><span class="kw">fn </span>test_list_vector() {
<a href=#537 id=537 data-nosnippet>537</a> <span class="kw">let </span>data = <span class="macro">vec!</span>[
<a href=#538 id=538 data-nosnippet>538</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">Some</span>(<span class="number">3</span>)]),
<a href=#539 id=539 data-nosnippet>539</a> <span class="prelude-val">None</span>,
<a href=#540 id=540 data-nosnippet>540</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">4</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">6</span>)]),
<a href=#541 id=541 data-nosnippet>541</a> ];
<a href=#542 id=542 data-nosnippet>542</a>
<a href=#543 id=543 data-nosnippet>543</a> <span class="kw">let </span>item_type = Arc::new(ConcreteDataType::int32_datatype());
<a href=#544 id=544 data-nosnippet>544</a> <span class="kw">let </span>list_vector = new_list_vector(<span class="kw-2">&amp;</span>data);
<a href=#545 id=545 data-nosnippet>545</a>
<a href=#546 id=546 data-nosnippet>546</a> <span class="macro">assert_eq!</span>(
<a href=#547 id=547 data-nosnippet>547</a> ConcreteDataType::List(ListType::new(item_type.clone())),
<a href=#548 id=548 data-nosnippet>548</a> list_vector.data_type()
<a href=#549 id=549 data-nosnippet>549</a> );
<a href=#550 id=550 data-nosnippet>550</a> <span class="macro">assert_eq!</span>(<span class="string">"ListVector"</span>, list_vector.vector_type_name());
<a href=#551 id=551 data-nosnippet>551</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, list_vector.len());
<a href=#552 id=552 data-nosnippet>552</a> <span class="macro">assert!</span>(!list_vector.is_null(<span class="number">0</span>));
<a href=#553 id=553 data-nosnippet>553</a> <span class="macro">assert!</span>(list_vector.is_null(<span class="number">1</span>));
<a href=#554 id=554 data-nosnippet>554</a> <span class="macro">assert!</span>(!list_vector.is_null(<span class="number">2</span>));
<a href=#555 id=555 data-nosnippet>555</a>
<a href=#556 id=556 data-nosnippet>556</a> <span class="kw">let </span>arrow_array = new_list_array(<span class="kw-2">&amp;</span>data);
<a href=#557 id=557 data-nosnippet>557</a> <span class="macro">assert_eq!</span>(
<a href=#558 id=558 data-nosnippet>558</a> arrow_array,
<a href=#559 id=559 data-nosnippet>559</a> <span class="kw-2">*</span>list_vector
<a href=#560 id=560 data-nosnippet>560</a> .to_arrow_array()
<a href=#561 id=561 data-nosnippet>561</a> .as_any()
<a href=#562 id=562 data-nosnippet>562</a> .downcast_ref::&lt;ListArray&gt;()
<a href=#563 id=563 data-nosnippet>563</a> .unwrap()
<a href=#564 id=564 data-nosnippet>564</a> );
<a href=#565 id=565 data-nosnippet>565</a> <span class="kw">let </span>validity = list_vector.validity();
<a href=#566 id=566 data-nosnippet>566</a> <span class="macro">assert!</span>(!validity.is_all_null());
<a href=#567 id=567 data-nosnippet>567</a> <span class="macro">assert!</span>(!validity.is_all_valid());
<a href=#568 id=568 data-nosnippet>568</a> <span class="macro">assert!</span>(validity.is_set(<span class="number">0</span>));
<a href=#569 id=569 data-nosnippet>569</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">1</span>));
<a href=#570 id=570 data-nosnippet>570</a> <span class="macro">assert!</span>(validity.is_set(<span class="number">2</span>));
<a href=#571 id=571 data-nosnippet>571</a> <span class="macro">assert_eq!</span>(<span class="number">224</span>, list_vector.memory_size());
<a href=#572 id=572 data-nosnippet>572</a>
<a href=#573 id=573 data-nosnippet>573</a> <span class="kw">let </span>slice = list_vector.slice(<span class="number">0</span>, <span class="number">2</span>).to_arrow_array();
<a href=#574 id=574 data-nosnippet>574</a> <span class="kw">let </span>sliced_array = slice.as_any().downcast_ref::&lt;ListArray&gt;().unwrap();
<a href=#575 id=575 data-nosnippet>575</a> <span class="macro">assert_eq!</span>(
<a href=#576 id=576 data-nosnippet>576</a> Int32Array::from_iter_values([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]),
<a href=#577 id=577 data-nosnippet>577</a> <span class="kw-2">*</span>sliced_array
<a href=#578 id=578 data-nosnippet>578</a> .value(<span class="number">0</span>)
<a href=#579 id=579 data-nosnippet>579</a> .as_any()
<a href=#580 id=580 data-nosnippet>580</a> .downcast_ref::&lt;Int32Array&gt;()
<a href=#581 id=581 data-nosnippet>581</a> .unwrap()
<a href=#582 id=582 data-nosnippet>582</a> );
<a href=#583 id=583 data-nosnippet>583</a> <span class="macro">assert!</span>(sliced_array.is_null(<span class="number">1</span>));
<a href=#584 id=584 data-nosnippet>584</a>
<a href=#585 id=585 data-nosnippet>585</a> <span class="macro">assert_eq!</span>(
<a href=#586 id=586 data-nosnippet>586</a> Value::List(ListValue::new(
<a href=#587 id=587 data-nosnippet>587</a> <span class="macro">vec!</span>[Value::Int32(<span class="number">1</span>), Value::Int32(<span class="number">2</span>), Value::Int32(<span class="number">3</span>)],
<a href=#588 id=588 data-nosnippet>588</a> item_type.clone()
<a href=#589 id=589 data-nosnippet>589</a> )),
<a href=#590 id=590 data-nosnippet>590</a> list_vector.get(<span class="number">0</span>)
<a href=#591 id=591 data-nosnippet>591</a> );
<a href=#592 id=592 data-nosnippet>592</a> <span class="kw">let </span>value_ref = list_vector.get_ref(<span class="number">0</span>);
<a href=#593 id=593 data-nosnippet>593</a> <span class="macro">assert!</span>(<span class="macro">matches!</span>(
<a href=#594 id=594 data-nosnippet>594</a> value_ref,
<a href=#595 id=595 data-nosnippet>595</a> ValueRef::List(ListValueRef::Indexed { .. })
<a href=#596 id=596 data-nosnippet>596</a> ));
<a href=#597 id=597 data-nosnippet>597</a> <span class="kw">let </span>value_ref = list_vector.get_ref(<span class="number">1</span>);
<a href=#598 id=598 data-nosnippet>598</a> <span class="kw">if let </span>ValueRef::List(ListValueRef::Indexed { idx, .. }) = value_ref {
<a href=#599 id=599 data-nosnippet>599</a> <span class="macro">assert_eq!</span>(<span class="number">1</span>, idx);
<a href=#600 id=600 data-nosnippet>600</a> } <span class="kw">else </span>{
<a href=#601 id=601 data-nosnippet>601</a> <span class="macro">unreachable!</span>()
<a href=#602 id=602 data-nosnippet>602</a> }
<a href=#603 id=603 data-nosnippet>603</a> <span class="macro">assert_eq!</span>(Value::Null, list_vector.get(<span class="number">1</span>));
<a href=#604 id=604 data-nosnippet>604</a> <span class="macro">assert_eq!</span>(
<a href=#605 id=605 data-nosnippet>605</a> Value::List(ListValue::new(
<a href=#606 id=606 data-nosnippet>606</a> <span class="macro">vec!</span>[Value::Int32(<span class="number">4</span>), Value::Null, Value::Int32(<span class="number">6</span>)],
<a href=#607 id=607 data-nosnippet>607</a> item_type.clone()
<a href=#608 id=608 data-nosnippet>608</a> )),
<a href=#609 id=609 data-nosnippet>609</a> list_vector.get(<span class="number">2</span>)
<a href=#610 id=610 data-nosnippet>610</a> );
<a href=#611 id=611 data-nosnippet>611</a> }
<a href=#612 id=612 data-nosnippet>612</a>
<a href=#613 id=613 data-nosnippet>613</a> <span class="attr">#[test]
<a href=#614 id=614 data-nosnippet>614</a> </span><span class="kw">fn </span>test_from_arrow_array() {
<a href=#615 id=615 data-nosnippet>615</a> <span class="kw">let </span>data = <span class="macro">vec!</span>[
<a href=#616 id=616 data-nosnippet>616</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">Some</span>(<span class="number">3</span>)]),
<a href=#617 id=617 data-nosnippet>617</a> <span class="prelude-val">None</span>,
<a href=#618 id=618 data-nosnippet>618</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">4</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">6</span>)]),
<a href=#619 id=619 data-nosnippet>619</a> ];
<a href=#620 id=620 data-nosnippet>620</a>
<a href=#621 id=621 data-nosnippet>621</a> <span class="kw">let </span>arrow_array = new_list_array(<span class="kw-2">&amp;</span>data);
<a href=#622 id=622 data-nosnippet>622</a> <span class="kw">let </span>array_ref: ArrayRef = Arc::new(arrow_array);
<a href=#623 id=623 data-nosnippet>623</a> <span class="kw">let </span>expect = new_list_vector(<span class="kw-2">&amp;</span>data);
<a href=#624 id=624 data-nosnippet>624</a>
<a href=#625 id=625 data-nosnippet>625</a> <span class="comment">// Test try from ArrayRef
<a href=#626 id=626 data-nosnippet>626</a> </span><span class="kw">let </span>list_vector = ListVector::try_from_arrow_array(array_ref).unwrap();
<a href=#627 id=627 data-nosnippet>627</a> <span class="macro">assert_eq!</span>(expect, list_vector);
<a href=#628 id=628 data-nosnippet>628</a>
<a href=#629 id=629 data-nosnippet>629</a> <span class="comment">// Test from
<a href=#630 id=630 data-nosnippet>630</a> </span><span class="kw">let </span>arrow_array = new_list_array(<span class="kw-2">&amp;</span>data);
<a href=#631 id=631 data-nosnippet>631</a> <span class="kw">let </span>list_vector = ListVector::from(arrow_array);
<a href=#632 id=632 data-nosnippet>632</a> <span class="macro">assert_eq!</span>(expect, list_vector);
<a href=#633 id=633 data-nosnippet>633</a> }
<a href=#634 id=634 data-nosnippet>634</a>
<a href=#635 id=635 data-nosnippet>635</a> <span class="attr">#[test]
<a href=#636 id=636 data-nosnippet>636</a> </span><span class="kw">fn </span>test_iter_list_vector_values() {
<a href=#637 id=637 data-nosnippet>637</a> <span class="kw">let </span>data = <span class="macro">vec!</span>[
<a href=#638 id=638 data-nosnippet>638</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">Some</span>(<span class="number">3</span>)]),
<a href=#639 id=639 data-nosnippet>639</a> <span class="prelude-val">None</span>,
<a href=#640 id=640 data-nosnippet>640</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">4</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">6</span>)]),
<a href=#641 id=641 data-nosnippet>641</a> ];
<a href=#642 id=642 data-nosnippet>642</a>
<a href=#643 id=643 data-nosnippet>643</a> <span class="kw">let </span>item_type = Arc::new(ConcreteDataType::int32_datatype());
<a href=#644 id=644 data-nosnippet>644</a> <span class="kw">let </span>list_vector = new_list_vector(<span class="kw-2">&amp;</span>data);
<a href=#645 id=645 data-nosnippet>645</a>
<a href=#646 id=646 data-nosnippet>646</a> <span class="macro">assert_eq!</span>(
<a href=#647 id=647 data-nosnippet>647</a> ConcreteDataType::List(ListType::new(item_type.clone())),
<a href=#648 id=648 data-nosnippet>648</a> list_vector.data_type()
<a href=#649 id=649 data-nosnippet>649</a> );
<a href=#650 id=650 data-nosnippet>650</a> <span class="kw">let </span><span class="kw-2">mut </span>iter = list_vector.values_iter();
<a href=#651 id=651 data-nosnippet>651</a> <span class="macro">assert_eq!</span>(
<a href=#652 id=652 data-nosnippet>652</a> Arc::new(Int32Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>])) <span class="kw">as </span>VectorRef,
<a href=#653 id=653 data-nosnippet>653</a> <span class="kw-2">*</span>iter.next().unwrap().unwrap().unwrap()
<a href=#654 id=654 data-nosnippet>654</a> );
<a href=#655 id=655 data-nosnippet>655</a> <span class="macro">assert!</span>(iter.next().unwrap().unwrap().is_none());
<a href=#656 id=656 data-nosnippet>656</a> <span class="macro">assert_eq!</span>(
<a href=#657 id=657 data-nosnippet>657</a> Arc::new(Int32Vector::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">4</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">6</span>)])) <span class="kw">as </span>VectorRef,
<a href=#658 id=658 data-nosnippet>658</a> <span class="kw-2">*</span>iter.next().unwrap().unwrap().unwrap(),
<a href=#659 id=659 data-nosnippet>659</a> );
<a href=#660 id=660 data-nosnippet>660</a> <span class="macro">assert!</span>(iter.next().is_none())
<a href=#661 id=661 data-nosnippet>661</a> }
<a href=#662 id=662 data-nosnippet>662</a>
<a href=#663 id=663 data-nosnippet>663</a> <span class="attr">#[test]
<a href=#664 id=664 data-nosnippet>664</a> </span><span class="kw">fn </span>test_serialize_to_json() {
<a href=#665 id=665 data-nosnippet>665</a> <span class="kw">let </span>data = <span class="macro">vec!</span>[
<a href=#666 id=666 data-nosnippet>666</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">Some</span>(<span class="number">3</span>)]),
<a href=#667 id=667 data-nosnippet>667</a> <span class="prelude-val">None</span>,
<a href=#668 id=668 data-nosnippet>668</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">4</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">6</span>)]),
<a href=#669 id=669 data-nosnippet>669</a> ];
<a href=#670 id=670 data-nosnippet>670</a>
<a href=#671 id=671 data-nosnippet>671</a> <span class="kw">let </span>list_vector = new_list_vector(<span class="kw-2">&amp;</span>data);
<a href=#672 id=672 data-nosnippet>672</a> <span class="macro">assert_eq!</span>(
<a href=#673 id=673 data-nosnippet>673</a> <span class="macro">vec!</span>[<span class="macro">json!</span>([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]), <span class="macro">json!</span>(null), <span class="macro">json!</span>([<span class="number">4</span>, null, <span class="number">6</span>]),],
<a href=#674 id=674 data-nosnippet>674</a> list_vector.serialize_to_json().unwrap()
<a href=#675 id=675 data-nosnippet>675</a> );
<a href=#676 id=676 data-nosnippet>676</a> }
<a href=#677 id=677 data-nosnippet>677</a>
<a href=#678 id=678 data-nosnippet>678</a> <span class="attr">#[test]
<a href=#679 id=679 data-nosnippet>679</a> </span><span class="kw">fn </span>test_list_vector_builder() {
<a href=#680 id=680 data-nosnippet>680</a> <span class="kw">let </span>item_type = Arc::new(ConcreteDataType::int32_datatype());
<a href=#681 id=681 data-nosnippet>681</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = ListType::new(item_type.clone()).create_mutable_vector(<span class="number">3</span>);
<a href=#682 id=682 data-nosnippet>682</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::List(ListValueRef::Ref {
<a href=#683 id=683 data-nosnippet>683</a> val: <span class="kw-2">&amp;</span>ListValue::new(
<a href=#684 id=684 data-nosnippet>684</a> <span class="macro">vec!</span>[Value::Int32(<span class="number">4</span>), Value::Null, Value::Int32(<span class="number">6</span>)],
<a href=#685 id=685 data-nosnippet>685</a> item_type.clone(),
<a href=#686 id=686 data-nosnippet>686</a> ),
<a href=#687 id=687 data-nosnippet>687</a> }));
<a href=#688 id=688 data-nosnippet>688</a> <span class="macro">assert!</span>(builder.try_push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Int32(<span class="number">123</span>)).is_err());
<a href=#689 id=689 data-nosnippet>689</a>
<a href=#690 id=690 data-nosnippet>690</a> <span class="kw">let </span>data = <span class="macro">vec!</span>[
<a href=#691 id=691 data-nosnippet>691</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">Some</span>(<span class="number">3</span>)]),
<a href=#692 id=692 data-nosnippet>692</a> <span class="prelude-val">None</span>,
<a href=#693 id=693 data-nosnippet>693</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">7</span>), <span class="prelude-val">Some</span>(<span class="number">8</span>), <span class="prelude-val">None</span>]),
<a href=#694 id=694 data-nosnippet>694</a> ];
<a href=#695 id=695 data-nosnippet>695</a> <span class="kw">let </span>input = new_list_vector(<span class="kw-2">&amp;</span>data);
<a href=#696 id=696 data-nosnippet>696</a> builder.extend_slice_of(<span class="kw-2">&amp;</span>input, <span class="number">1</span>, <span class="number">2</span>).unwrap();
<a href=#697 id=697 data-nosnippet>697</a> <span class="macro">assert!</span>(
<a href=#698 id=698 data-nosnippet>698</a> builder
<a href=#699 id=699 data-nosnippet>699</a> .extend_slice_of(<span class="kw-2">&amp;</span><span class="kw">crate</span>::vectors::Int32Vector::from_slice([<span class="number">13</span>]), <span class="number">0</span>, <span class="number">1</span>)
<a href=#700 id=700 data-nosnippet>700</a> .is_err()
<a href=#701 id=701 data-nosnippet>701</a> );
<a href=#702 id=702 data-nosnippet>702</a> <span class="kw">let </span>vector = builder.to_vector();
<a href=#703 id=703 data-nosnippet>703</a>
<a href=#704 id=704 data-nosnippet>704</a> <span class="kw">let </span>expect: VectorRef = Arc::new(new_list_vector(<span class="kw-2">&amp;</span>[
<a href=#705 id=705 data-nosnippet>705</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">4</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">6</span>)]),
<a href=#706 id=706 data-nosnippet>706</a> <span class="prelude-val">None</span>,
<a href=#707 id=707 data-nosnippet>707</a> <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">7</span>), <span class="prelude-val">Some</span>(<span class="number">8</span>), <span class="prelude-val">None</span>]),
<a href=#708 id=708 data-nosnippet>708</a> ]));
<a href=#709 id=709 data-nosnippet>709</a> <span class="macro">assert_eq!</span>(expect, vector);
<a href=#710 id=710 data-nosnippet>710</a> }
<a href=#711 id=711 data-nosnippet>711</a>
<a href=#712 id=712 data-nosnippet>712</a> <span class="attr">#[test]
<a href=#713 id=713 data-nosnippet>713</a> </span><span class="kw">fn </span>test_list_vector_for_scalar() {
<a href=#714 id=714 data-nosnippet>714</a> <span class="kw">let </span>item_type = Arc::new(ConcreteDataType::int32_datatype());
<a href=#715 id=715 data-nosnippet>715</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = ListVectorBuilder::with_type_capacity(item_type.clone(), <span class="number">2</span>);
<a href=#716 id=716 data-nosnippet>716</a> builder.push(<span class="prelude-val">None</span>);
<a href=#717 id=717 data-nosnippet>717</a> builder.push(<span class="prelude-val">Some</span>(ListValueRef::Ref {
<a href=#718 id=718 data-nosnippet>718</a> val: <span class="kw-2">&amp;</span>ListValue::new(
<a href=#719 id=719 data-nosnippet>719</a> <span class="macro">vec!</span>[Value::Int32(<span class="number">4</span>), Value::Null, Value::Int32(<span class="number">6</span>)],
<a href=#720 id=720 data-nosnippet>720</a> item_type.clone(),
<a href=#721 id=721 data-nosnippet>721</a> ),
<a href=#722 id=722 data-nosnippet>722</a> }));
<a href=#723 id=723 data-nosnippet>723</a> <span class="kw">let </span>vector = builder.finish();
<a href=#724 id=724 data-nosnippet>724</a>
<a href=#725 id=725 data-nosnippet>725</a> <span class="kw">let </span>expect = new_list_vector(<span class="kw-2">&amp;</span>[<span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">4</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">6</span>)])]);
<a href=#726 id=726 data-nosnippet>726</a> <span class="macro">assert_eq!</span>(expect, vector);
<a href=#727 id=727 data-nosnippet>727</a>
<a href=#728 id=728 data-nosnippet>728</a> <span class="macro">assert!</span>(vector.get_data(<span class="number">0</span>).is_none());
<a href=#729 id=729 data-nosnippet>729</a> <span class="macro">assert_eq!</span>(
<a href=#730 id=730 data-nosnippet>730</a> ListValueRef::Indexed {
<a href=#731 id=731 data-nosnippet>731</a> vector: <span class="kw-2">&amp;</span>vector,
<a href=#732 id=732 data-nosnippet>732</a> idx: <span class="number">1
<a href=#733 id=733 data-nosnippet>733</a> </span>},
<a href=#734 id=734 data-nosnippet>734</a> vector.get_data(<span class="number">1</span>).unwrap()
<a href=#735 id=735 data-nosnippet>735</a> );
<a href=#736 id=736 data-nosnippet>736</a> <span class="macro">assert_eq!</span>(
<a href=#737 id=737 data-nosnippet>737</a> <span class="kw-2">*</span>vector.get(<span class="number">1</span>).as_list().unwrap().unwrap(),
<a href=#738 id=738 data-nosnippet>738</a> vector.get_data(<span class="number">1</span>).unwrap().to_owned_scalar()
<a href=#739 id=739 data-nosnippet>739</a> );
<a href=#740 id=740 data-nosnippet>740</a>
<a href=#741 id=741 data-nosnippet>741</a> <span class="kw">let </span><span class="kw-2">mut </span>iter = vector.iter_data();
<a href=#742 id=742 data-nosnippet>742</a> <span class="macro">assert!</span>(iter.next().unwrap().is_none());
<a href=#743 id=743 data-nosnippet>743</a> <span class="macro">assert_eq!</span>(
<a href=#744 id=744 data-nosnippet>744</a> ListValueRef::Indexed {
<a href=#745 id=745 data-nosnippet>745</a> vector: <span class="kw-2">&amp;</span>vector,
<a href=#746 id=746 data-nosnippet>746</a> idx: <span class="number">1
<a href=#747 id=747 data-nosnippet>747</a> </span>},
<a href=#748 id=748 data-nosnippet>748</a> iter.next().unwrap().unwrap()
<a href=#749 id=749 data-nosnippet>749</a> );
<a href=#750 id=750 data-nosnippet>750</a> <span class="macro">assert!</span>(iter.next().is_none());
<a href=#751 id=751 data-nosnippet>751</a>
<a href=#752 id=752 data-nosnippet>752</a> <span class="kw">let </span><span class="kw-2">mut </span>iter = vector.iter_data();
<a href=#753 id=753 data-nosnippet>753</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, iter.size_hint().<span class="number">0</span>);
<a href=#754 id=754 data-nosnippet>754</a> <span class="macro">assert_eq!</span>(
<a href=#755 id=755 data-nosnippet>755</a> ListValueRef::Indexed {
<a href=#756 id=756 data-nosnippet>756</a> vector: <span class="kw-2">&amp;</span>vector,
<a href=#757 id=757 data-nosnippet>757</a> idx: <span class="number">1
<a href=#758 id=758 data-nosnippet>758</a> </span>},
<a href=#759 id=759 data-nosnippet>759</a> iter.nth(<span class="number">1</span>).unwrap().unwrap()
<a href=#760 id=760 data-nosnippet>760</a> );
<a href=#761 id=761 data-nosnippet>761</a> }
<a href=#762 id=762 data-nosnippet>762</a>
<a href=#763 id=763 data-nosnippet>763</a> <span class="attr">#[test]
<a href=#764 id=764 data-nosnippet>764</a> </span><span class="kw">fn </span>test_list_vector_builder_finish_cloned() {
<a href=#765 id=765 data-nosnippet>765</a> <span class="kw">let </span>item_type = Arc::new(ConcreteDataType::int32_datatype());
<a href=#766 id=766 data-nosnippet>766</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = ListVectorBuilder::with_type_capacity(item_type.clone(), <span class="number">2</span>);
<a href=#767 id=767 data-nosnippet>767</a> builder.push(<span class="prelude-val">None</span>);
<a href=#768 id=768 data-nosnippet>768</a> builder.push(<span class="prelude-val">Some</span>(ListValueRef::Ref {
<a href=#769 id=769 data-nosnippet>769</a> val: <span class="kw-2">&amp;</span>ListValue::new(
<a href=#770 id=770 data-nosnippet>770</a> <span class="macro">vec!</span>[Value::Int32(<span class="number">4</span>), Value::Null, Value::Int32(<span class="number">6</span>)],
<a href=#771 id=771 data-nosnippet>771</a> item_type.clone(),
<a href=#772 id=772 data-nosnippet>772</a> ),
<a href=#773 id=773 data-nosnippet>773</a> }));
<a href=#774 id=774 data-nosnippet>774</a> <span class="kw">let </span>vector = builder.finish_cloned();
<a href=#775 id=775 data-nosnippet>775</a> <span class="macro">assert_eq!</span>(vector.len(), <span class="number">2</span>);
<a href=#776 id=776 data-nosnippet>776</a> <span class="macro">assert_eq!</span>(builder.len(), <span class="number">2</span>);
<a href=#777 id=777 data-nosnippet>777</a> }
<a href=#778 id=778 data-nosnippet>778</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/null.rs`."><title>null.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>null.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::any::Any;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::fmt;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>std::sync::Arc;
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>arrow::array::{Array, ArrayRef, NullArray};
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>snafu::{OptionExt, ensure};
<a href=#21 id=21 data-nosnippet>21</a>
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, <span class="prelude-ty">Result</span>};
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::prelude::{ScalarVector, ScalarVectorBuilder};
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::types::NullType;
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::value::{Value, ValueRef};
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{<span class="self">self</span>, MutableVector, Validity, Vector, VectorRef};
<a href=#29 id=29 data-nosnippet>29</a>
<a href=#30 id=30 data-nosnippet>30</a><span class="doccomment">/// A vector where all elements are nulls.
<a href=#31 id=31 data-nosnippet>31</a></span><span class="attr">#[derive(PartialEq)]
<a href=#32 id=32 data-nosnippet>32</a></span><span class="kw">pub struct </span>NullVector {
<a href=#33 id=33 data-nosnippet>33</a> array: NullArray,
<a href=#34 id=34 data-nosnippet>34</a>}
<a href=#35 id=35 data-nosnippet>35</a>
<a href=#36 id=36 data-nosnippet>36</a><span class="comment">// TODO(yingwen): Support null vector with other logical types.
<a href=#37 id=37 data-nosnippet>37</a></span><span class="kw">impl </span>NullVector {
<a href=#38 id=38 data-nosnippet>38</a> <span class="doccomment">/// Create a new `NullVector` with `n` elements.
<a href=#39 id=39 data-nosnippet>39</a> </span><span class="kw">pub fn </span>new(n: usize) -&gt; <span class="self">Self </span>{
<a href=#40 id=40 data-nosnippet>40</a> <span class="self">Self </span>{
<a href=#41 id=41 data-nosnippet>41</a> array: NullArray::new(n),
<a href=#42 id=42 data-nosnippet>42</a> }
<a href=#43 id=43 data-nosnippet>43</a> }
<a href=#44 id=44 data-nosnippet>44</a>
<a href=#45 id=45 data-nosnippet>45</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>as_arrow(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Array {
<a href=#46 id=46 data-nosnippet>46</a> <span class="kw-2">&amp;</span><span class="self">self</span>.array
<a href=#47 id=47 data-nosnippet>47</a> }
<a href=#48 id=48 data-nosnippet>48</a>}
<a href=#49 id=49 data-nosnippet>49</a>
<a href=#50 id=50 data-nosnippet>50</a><span class="kw">impl </span>From&lt;NullArray&gt; <span class="kw">for </span>NullVector {
<a href=#51 id=51 data-nosnippet>51</a> <span class="kw">fn </span>from(array: NullArray) -&gt; <span class="self">Self </span>{
<a href=#52 id=52 data-nosnippet>52</a> <span class="self">Self </span>{ array }
<a href=#53 id=53 data-nosnippet>53</a> }
<a href=#54 id=54 data-nosnippet>54</a>}
<a href=#55 id=55 data-nosnippet>55</a>
<a href=#56 id=56 data-nosnippet>56</a><span class="kw">impl </span>Vector <span class="kw">for </span>NullVector {
<a href=#57 id=57 data-nosnippet>57</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#58 id=58 data-nosnippet>58</a> ConcreteDataType::Null(NullType)
<a href=#59 id=59 data-nosnippet>59</a> }
<a href=#60 id=60 data-nosnippet>60</a>
<a href=#61 id=61 data-nosnippet>61</a> <span class="kw">fn </span>vector_type_name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#62 id=62 data-nosnippet>62</a> <span class="string">"NullVector"</span>.to_string()
<a href=#63 id=63 data-nosnippet>63</a> }
<a href=#64 id=64 data-nosnippet>64</a>
<a href=#65 id=65 data-nosnippet>65</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#66 id=66 data-nosnippet>66</a> <span class="self">self
<a href=#67 id=67 data-nosnippet>67</a> </span>}
<a href=#68 id=68 data-nosnippet>68</a>
<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#70 id=70 data-nosnippet>70</a> <span class="self">self</span>.array.len()
<a href=#71 id=71 data-nosnippet>71</a> }
<a href=#72 id=72 data-nosnippet>72</a>
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">fn </span>to_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrayRef {
<a href=#74 id=74 data-nosnippet>74</a> Arc::new(<span class="self">self</span>.array.clone())
<a href=#75 id=75 data-nosnippet>75</a> }
<a href=#76 id=76 data-nosnippet>76</a>
<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">fn </span>to_boxed_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Box&lt;<span class="kw">dyn </span>Array&gt; {
<a href=#78 id=78 data-nosnippet>78</a> Box::new(<span class="self">self</span>.array.clone())
<a href=#79 id=79 data-nosnippet>79</a> }
<a href=#80 id=80 data-nosnippet>80</a>
<a href=#81 id=81 data-nosnippet>81</a> <span class="kw">fn </span>validity(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Validity {
<a href=#82 id=82 data-nosnippet>82</a> Validity::all_null(<span class="self">self</span>.array.len())
<a href=#83 id=83 data-nosnippet>83</a> }
<a href=#84 id=84 data-nosnippet>84</a>
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">fn </span>memory_size(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#86 id=86 data-nosnippet>86</a> <span class="number">0
<a href=#87 id=87 data-nosnippet>87</a> </span>}
<a href=#88 id=88 data-nosnippet>88</a>
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">fn </span>null_count(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#90 id=90 data-nosnippet>90</a> <span class="self">self</span>.array.len()
<a href=#91 id=91 data-nosnippet>91</a> }
<a href=#92 id=92 data-nosnippet>92</a>
<a href=#93 id=93 data-nosnippet>93</a> <span class="kw">fn </span>is_null(<span class="kw-2">&amp;</span><span class="self">self</span>, _row: usize) -&gt; bool {
<a href=#94 id=94 data-nosnippet>94</a> <span class="bool-val">true
<a href=#95 id=95 data-nosnippet>95</a> </span>}
<a href=#96 id=96 data-nosnippet>96</a>
<a href=#97 id=97 data-nosnippet>97</a> <span class="kw">fn </span>only_null(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#98 id=98 data-nosnippet>98</a> <span class="bool-val">true
<a href=#99 id=99 data-nosnippet>99</a> </span>}
<a href=#100 id=100 data-nosnippet>100</a>
<a href=#101 id=101 data-nosnippet>101</a> <span class="kw">fn </span>slice(<span class="kw-2">&amp;</span><span class="self">self</span>, _offset: usize, length: usize) -&gt; VectorRef {
<a href=#102 id=102 data-nosnippet>102</a> Arc::new(<span class="self">Self</span>::new(length))
<a href=#103 id=103 data-nosnippet>103</a> }
<a href=#104 id=104 data-nosnippet>104</a>
<a href=#105 id=105 data-nosnippet>105</a> <span class="kw">fn </span>get(<span class="kw-2">&amp;</span><span class="self">self</span>, _index: usize) -&gt; Value {
<a href=#106 id=106 data-nosnippet>106</a> <span class="comment">// Skips bound check for null array.
<a href=#107 id=107 data-nosnippet>107</a> </span>Value::Null
<a href=#108 id=108 data-nosnippet>108</a> }
<a href=#109 id=109 data-nosnippet>109</a>
<a href=#110 id=110 data-nosnippet>110</a> <span class="kw">fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>, _index: usize) -&gt; ValueRef&lt;<span class="lifetime">'_</span>&gt; {
<a href=#111 id=111 data-nosnippet>111</a> <span class="comment">// Skips bound check for null array.
<a href=#112 id=112 data-nosnippet>112</a> </span>ValueRef::Null
<a href=#113 id=113 data-nosnippet>113</a> }
<a href=#114 id=114 data-nosnippet>114</a>}
<a href=#115 id=115 data-nosnippet>115</a>
<a href=#116 id=116 data-nosnippet>116</a><span class="kw">impl </span>ScalarVector <span class="kw">for </span>NullVector {
<a href=#117 id=117 data-nosnippet>117</a> <span class="kw">type </span>OwnedItem = ();
<a href=#118 id=118 data-nosnippet>118</a> <span class="kw">type </span>RefItem&lt;<span class="lifetime">'a</span>&gt; = ();
<a href=#119 id=119 data-nosnippet>119</a> <span class="kw">type </span>Iter&lt;<span class="lifetime">'a</span>&gt; = NullIter&lt;<span class="lifetime">'a</span>&gt;;
<a href=#120 id=120 data-nosnippet>120</a> <span class="kw">type </span>Builder = NullVectorBuilder;
<a href=#121 id=121 data-nosnippet>121</a>
<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">fn </span>get_data(<span class="kw-2">&amp;</span><span class="self">self</span>, _idx: usize) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt; {
<a href=#123 id=123 data-nosnippet>123</a> <span class="prelude-val">Some</span>(())
<a href=#124 id=124 data-nosnippet>124</a> }
<a href=#125 id=125 data-nosnippet>125</a>
<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">fn </span>iter_data(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::Iter&lt;<span class="lifetime">'_</span>&gt; {
<a href=#127 id=127 data-nosnippet>127</a> NullIter::new(<span class="self">self</span>)
<a href=#128 id=128 data-nosnippet>128</a> }
<a href=#129 id=129 data-nosnippet>129</a>}
<a href=#130 id=130 data-nosnippet>130</a>
<a href=#131 id=131 data-nosnippet>131</a><span class="kw">impl </span>fmt::Debug <span class="kw">for </span>NullVector {
<a href=#132 id=132 data-nosnippet>132</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter) -&gt; fmt::Result {
<a href=#133 id=133 data-nosnippet>133</a> <span class="macro">write!</span>(f, <span class="string">"NullVector({})"</span>, <span class="self">self</span>.len())
<a href=#134 id=134 data-nosnippet>134</a> }
<a href=#135 id=135 data-nosnippet>135</a>}
<a href=#136 id=136 data-nosnippet>136</a>
<a href=#137 id=137 data-nosnippet>137</a><span class="kw">impl </span>Serializable <span class="kw">for </span>NullVector {
<a href=#138 id=138 data-nosnippet>138</a> <span class="kw">fn </span>serialize_to_json(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;serde_json::Value&gt;&gt; {
<a href=#139 id=139 data-nosnippet>139</a> <span class="prelude-val">Ok</span>(std::iter::repeat_n(serde_json::Value::Null, <span class="self">self</span>.len()).collect())
<a href=#140 id=140 data-nosnippet>140</a> }
<a href=#141 id=141 data-nosnippet>141</a>}
<a href=#142 id=142 data-nosnippet>142</a>
<a href=#143 id=143 data-nosnippet>143</a><span class="macro">vectors::impl_try_from_arrow_array_for_vector!</span>(NullArray, NullVector);
<a href=#144 id=144 data-nosnippet>144</a>
<a href=#145 id=145 data-nosnippet>145</a><span class="kw">pub struct </span>NullIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#146 id=146 data-nosnippet>146</a> vector: <span class="kw-2">&amp;</span><span class="lifetime">'a </span>NullVector,
<a href=#147 id=147 data-nosnippet>147</a> index: usize,
<a href=#148 id=148 data-nosnippet>148</a>}
<a href=#149 id=149 data-nosnippet>149</a>
<a href=#150 id=150 data-nosnippet>150</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; NullIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#151 id=151 data-nosnippet>151</a> <span class="kw">pub fn </span>new(vector: <span class="kw-2">&amp;</span><span class="lifetime">'a </span>NullVector) -&gt; <span class="self">Self </span>{
<a href=#152 id=152 data-nosnippet>152</a> NullIter { vector, index: <span class="number">0 </span>}
<a href=#153 id=153 data-nosnippet>153</a> }
<a href=#154 id=154 data-nosnippet>154</a>}
<a href=#155 id=155 data-nosnippet>155</a>
<a href=#156 id=156 data-nosnippet>156</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; Iterator <span class="kw">for </span>NullIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#157 id=157 data-nosnippet>157</a> <span class="kw">type </span>Item = <span class="prelude-ty">Option</span>&lt;()&gt;;
<a href=#158 id=158 data-nosnippet>158</a>
<a href=#159 id=159 data-nosnippet>159</a> <span class="kw">fn </span>next(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::Item&gt; {
<a href=#160 id=160 data-nosnippet>160</a> <span class="kw">if </span><span class="self">self</span>.index &lt; <span class="self">self</span>.vector.len() {
<a href=#161 id=161 data-nosnippet>161</a> <span class="self">self</span>.index += <span class="number">1</span>;
<a href=#162 id=162 data-nosnippet>162</a> <span class="prelude-val">Some</span>(<span class="prelude-val">Some</span>(()))
<a href=#163 id=163 data-nosnippet>163</a> } <span class="kw">else </span>{
<a href=#164 id=164 data-nosnippet>164</a> <span class="prelude-val">None
<a href=#165 id=165 data-nosnippet>165</a> </span>}
<a href=#166 id=166 data-nosnippet>166</a> }
<a href=#167 id=167 data-nosnippet>167</a>}
<a href=#168 id=168 data-nosnippet>168</a>
<a href=#169 id=169 data-nosnippet>169</a><span class="attr">#[derive(Default)]
<a href=#170 id=170 data-nosnippet>170</a></span><span class="kw">pub struct </span>NullVectorBuilder {
<a href=#171 id=171 data-nosnippet>171</a> length: usize,
<a href=#172 id=172 data-nosnippet>172</a>}
<a href=#173 id=173 data-nosnippet>173</a>
<a href=#174 id=174 data-nosnippet>174</a><span class="kw">impl </span>MutableVector <span class="kw">for </span>NullVectorBuilder {
<a href=#175 id=175 data-nosnippet>175</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#176 id=176 data-nosnippet>176</a> ConcreteDataType::null_datatype()
<a href=#177 id=177 data-nosnippet>177</a> }
<a href=#178 id=178 data-nosnippet>178</a>
<a href=#179 id=179 data-nosnippet>179</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#180 id=180 data-nosnippet>180</a> <span class="self">self</span>.length
<a href=#181 id=181 data-nosnippet>181</a> }
<a href=#182 id=182 data-nosnippet>182</a>
<a href=#183 id=183 data-nosnippet>183</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#184 id=184 data-nosnippet>184</a> <span class="self">self
<a href=#185 id=185 data-nosnippet>185</a> </span>}
<a href=#186 id=186 data-nosnippet>186</a>
<a href=#187 id=187 data-nosnippet>187</a> <span class="kw">fn </span>as_mut_any(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span><span class="kw">dyn </span>Any {
<a href=#188 id=188 data-nosnippet>188</a> <span class="self">self
<a href=#189 id=189 data-nosnippet>189</a> </span>}
<a href=#190 id=190 data-nosnippet>190</a>
<a href=#191 id=191 data-nosnippet>191</a> <span class="kw">fn </span>to_vector(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; VectorRef {
<a href=#192 id=192 data-nosnippet>192</a> <span class="kw">let </span>vector = Arc::new(NullVector::new(<span class="self">self</span>.length));
<a href=#193 id=193 data-nosnippet>193</a> <span class="self">self</span>.length = <span class="number">0</span>;
<a href=#194 id=194 data-nosnippet>194</a> vector
<a href=#195 id=195 data-nosnippet>195</a> }
<a href=#196 id=196 data-nosnippet>196</a>
<a href=#197 id=197 data-nosnippet>197</a> <span class="kw">fn </span>to_vector_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; VectorRef {
<a href=#198 id=198 data-nosnippet>198</a> Arc::new(NullVector::new(<span class="self">self</span>.length))
<a href=#199 id=199 data-nosnippet>199</a> }
<a href=#200 id=200 data-nosnippet>200</a>
<a href=#201 id=201 data-nosnippet>201</a> <span class="kw">fn </span>try_push_value_ref(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#202 id=202 data-nosnippet>202</a> <span class="macro">ensure!</span>(
<a href=#203 id=203 data-nosnippet>203</a> value.is_null(),
<a href=#204 id=204 data-nosnippet>204</a> error::CastTypeSnafu {
<a href=#205 id=205 data-nosnippet>205</a> msg: <span class="macro">format!</span>(<span class="string">"Failed to cast value ref {value:?} to null"</span>),
<a href=#206 id=206 data-nosnippet>206</a> }
<a href=#207 id=207 data-nosnippet>207</a> );
<a href=#208 id=208 data-nosnippet>208</a>
<a href=#209 id=209 data-nosnippet>209</a> <span class="self">self</span>.length += <span class="number">1</span>;
<a href=#210 id=210 data-nosnippet>210</a> <span class="prelude-val">Ok</span>(())
<a href=#211 id=211 data-nosnippet>211</a> }
<a href=#212 id=212 data-nosnippet>212</a>
<a href=#213 id=213 data-nosnippet>213</a> <span class="kw">fn </span>extend_slice_of(<span class="kw-2">&amp;mut </span><span class="self">self</span>, vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector, offset: usize, length: usize) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#214 id=214 data-nosnippet>214</a> <span class="kw">let _ </span>= vector
<a href=#215 id=215 data-nosnippet>215</a> .as_any()
<a href=#216 id=216 data-nosnippet>216</a> .downcast_ref::&lt;NullVector&gt;()
<a href=#217 id=217 data-nosnippet>217</a> .with_context(|| error::CastTypeSnafu {
<a href=#218 id=218 data-nosnippet>218</a> msg: <span class="macro">format!</span>(
<a href=#219 id=219 data-nosnippet>219</a> <span class="string">"Failed to convert vector from {} to NullVector"</span>,
<a href=#220 id=220 data-nosnippet>220</a> vector.vector_type_name()
<a href=#221 id=221 data-nosnippet>221</a> ),
<a href=#222 id=222 data-nosnippet>222</a> })<span class="question-mark">?</span>;
<a href=#223 id=223 data-nosnippet>223</a> <span class="macro">assert!</span>(
<a href=#224 id=224 data-nosnippet>224</a> offset + length &lt;= vector.len(),
<a href=#225 id=225 data-nosnippet>225</a> <span class="string">"offset {} + length {} must less than {}"</span>,
<a href=#226 id=226 data-nosnippet>226</a> offset,
<a href=#227 id=227 data-nosnippet>227</a> length,
<a href=#228 id=228 data-nosnippet>228</a> vector.len()
<a href=#229 id=229 data-nosnippet>229</a> );
<a href=#230 id=230 data-nosnippet>230</a>
<a href=#231 id=231 data-nosnippet>231</a> <span class="self">self</span>.length += length;
<a href=#232 id=232 data-nosnippet>232</a> <span class="prelude-val">Ok</span>(())
<a href=#233 id=233 data-nosnippet>233</a> }
<a href=#234 id=234 data-nosnippet>234</a>
<a href=#235 id=235 data-nosnippet>235</a> <span class="kw">fn </span>push_null(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#236 id=236 data-nosnippet>236</a> <span class="self">self</span>.length += <span class="number">1</span>;
<a href=#237 id=237 data-nosnippet>237</a> }
<a href=#238 id=238 data-nosnippet>238</a>}
<a href=#239 id=239 data-nosnippet>239</a>
<a href=#240 id=240 data-nosnippet>240</a><span class="kw">impl </span>ScalarVectorBuilder <span class="kw">for </span>NullVectorBuilder {
<a href=#241 id=241 data-nosnippet>241</a> <span class="kw">type </span>VectorType = NullVector;
<a href=#242 id=242 data-nosnippet>242</a>
<a href=#243 id=243 data-nosnippet>243</a> <span class="kw">fn </span>with_capacity(_capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#244 id=244 data-nosnippet>244</a> <span class="self">Self</span>::default()
<a href=#245 id=245 data-nosnippet>245</a> }
<a href=#246 id=246 data-nosnippet>246</a>
<a href=#247 id=247 data-nosnippet>247</a> <span class="kw">fn </span>push(<span class="kw-2">&amp;mut </span><span class="self">self</span>, _value: <span class="prelude-ty">Option</span>&lt;&lt;<span class="self">Self</span>::VectorType <span class="kw">as </span>ScalarVector&gt;::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt;) {
<a href=#248 id=248 data-nosnippet>248</a> <span class="self">self</span>.length += <span class="number">1</span>;
<a href=#249 id=249 data-nosnippet>249</a> }
<a href=#250 id=250 data-nosnippet>250</a>
<a href=#251 id=251 data-nosnippet>251</a> <span class="kw">fn </span>finish(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#252 id=252 data-nosnippet>252</a> <span class="kw">let </span>result = NullVector::new(<span class="self">self</span>.length);
<a href=#253 id=253 data-nosnippet>253</a>
<a href=#254 id=254 data-nosnippet>254</a> <span class="self">self</span>.length = <span class="number">0</span>;
<a href=#255 id=255 data-nosnippet>255</a> result
<a href=#256 id=256 data-nosnippet>256</a> }
<a href=#257 id=257 data-nosnippet>257</a>
<a href=#258 id=258 data-nosnippet>258</a> <span class="kw">fn </span>finish_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#259 id=259 data-nosnippet>259</a> NullVector::new(<span class="self">self</span>.length)
<a href=#260 id=260 data-nosnippet>260</a> }
<a href=#261 id=261 data-nosnippet>261</a>}
<a href=#262 id=262 data-nosnippet>262</a>
<a href=#263 id=263 data-nosnippet>263</a><span class="attr">#[cfg(test)]
<a href=#264 id=264 data-nosnippet>264</a></span><span class="kw">mod </span>tests {
<a href=#265 id=265 data-nosnippet>265</a> <span class="kw">use </span>serde_json;
<a href=#266 id=266 data-nosnippet>266</a>
<a href=#267 id=267 data-nosnippet>267</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#268 id=268 data-nosnippet>268</a> <span class="kw">use </span><span class="kw">crate</span>::data_type::DataType;
<a href=#269 id=269 data-nosnippet>269</a>
<a href=#270 id=270 data-nosnippet>270</a> <span class="attr">#[test]
<a href=#271 id=271 data-nosnippet>271</a> </span><span class="kw">fn </span>test_null_vector_misc() {
<a href=#272 id=272 data-nosnippet>272</a> <span class="kw">let </span>v = NullVector::new(<span class="number">32</span>);
<a href=#273 id=273 data-nosnippet>273</a>
<a href=#274 id=274 data-nosnippet>274</a> <span class="macro">assert_eq!</span>(v.len(), <span class="number">32</span>);
<a href=#275 id=275 data-nosnippet>275</a> <span class="macro">assert_eq!</span>(<span class="number">0</span>, v.memory_size());
<a href=#276 id=276 data-nosnippet>276</a> <span class="macro">assert_eq!</span>(v.null_count(), <span class="number">32</span>);
<a href=#277 id=277 data-nosnippet>277</a>
<a href=#278 id=278 data-nosnippet>278</a> <span class="kw">let </span>vector2 = v.slice(<span class="number">8</span>, <span class="number">16</span>);
<a href=#279 id=279 data-nosnippet>279</a> <span class="macro">assert_eq!</span>(vector2.len(), <span class="number">16</span>);
<a href=#280 id=280 data-nosnippet>280</a> <span class="macro">assert_eq!</span>(vector2.null_count(), <span class="number">16</span>);
<a href=#281 id=281 data-nosnippet>281</a>
<a href=#282 id=282 data-nosnippet>282</a> <span class="macro">assert_eq!</span>(<span class="string">"NullVector"</span>, v.vector_type_name());
<a href=#283 id=283 data-nosnippet>283</a> <span class="macro">assert!</span>(v.validity().is_all_null());
<a href=#284 id=284 data-nosnippet>284</a> <span class="macro">assert!</span>(v.only_null());
<a href=#285 id=285 data-nosnippet>285</a>
<a href=#286 id=286 data-nosnippet>286</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..<span class="number">32 </span>{
<a href=#287 id=287 data-nosnippet>287</a> <span class="macro">assert!</span>(v.is_null(i));
<a href=#288 id=288 data-nosnippet>288</a> <span class="macro">assert_eq!</span>(Value::Null, v.get(i));
<a href=#289 id=289 data-nosnippet>289</a> <span class="macro">assert_eq!</span>(ValueRef::Null, v.get_ref(i));
<a href=#290 id=290 data-nosnippet>290</a> }
<a href=#291 id=291 data-nosnippet>291</a> }
<a href=#292 id=292 data-nosnippet>292</a>
<a href=#293 id=293 data-nosnippet>293</a> <span class="attr">#[test]
<a href=#294 id=294 data-nosnippet>294</a> </span><span class="kw">fn </span>test_debug_null_vector() {
<a href=#295 id=295 data-nosnippet>295</a> <span class="kw">let </span>array = NullVector::new(<span class="number">1024 </span>* <span class="number">1024</span>);
<a href=#296 id=296 data-nosnippet>296</a> <span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{array:?}"</span>), <span class="string">"NullVector(1048576)"</span>);
<a href=#297 id=297 data-nosnippet>297</a> }
<a href=#298 id=298 data-nosnippet>298</a>
<a href=#299 id=299 data-nosnippet>299</a> <span class="attr">#[test]
<a href=#300 id=300 data-nosnippet>300</a> </span><span class="kw">fn </span>test_serialize_json() {
<a href=#301 id=301 data-nosnippet>301</a> <span class="kw">let </span>vector = NullVector::new(<span class="number">3</span>);
<a href=#302 id=302 data-nosnippet>302</a> <span class="kw">let </span>json_value = vector.serialize_to_json().unwrap();
<a href=#303 id=303 data-nosnippet>303</a> <span class="macro">assert_eq!</span>(
<a href=#304 id=304 data-nosnippet>304</a> <span class="string">"[null,null,null]"</span>,
<a href=#305 id=305 data-nosnippet>305</a> serde_json::to_string(<span class="kw-2">&amp;</span>json_value).unwrap()
<a href=#306 id=306 data-nosnippet>306</a> );
<a href=#307 id=307 data-nosnippet>307</a> }
<a href=#308 id=308 data-nosnippet>308</a>
<a href=#309 id=309 data-nosnippet>309</a> <span class="attr">#[test]
<a href=#310 id=310 data-nosnippet>310</a> </span><span class="kw">fn </span>test_null_vector_validity() {
<a href=#311 id=311 data-nosnippet>311</a> <span class="kw">let </span>vector = NullVector::new(<span class="number">5</span>);
<a href=#312 id=312 data-nosnippet>312</a> <span class="macro">assert!</span>(vector.validity().is_all_null());
<a href=#313 id=313 data-nosnippet>313</a> <span class="macro">assert_eq!</span>(<span class="number">5</span>, vector.null_count());
<a href=#314 id=314 data-nosnippet>314</a> }
<a href=#315 id=315 data-nosnippet>315</a>
<a href=#316 id=316 data-nosnippet>316</a> <span class="attr">#[test]
<a href=#317 id=317 data-nosnippet>317</a> </span><span class="kw">fn </span>test_null_vector_builder() {
<a href=#318 id=318 data-nosnippet>318</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = NullType.create_mutable_vector(<span class="number">3</span>);
<a href=#319 id=319 data-nosnippet>319</a> builder.push_null();
<a href=#320 id=320 data-nosnippet>320</a> <span class="macro">assert!</span>(builder.try_push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Int32(<span class="number">123</span>)).is_err());
<a href=#321 id=321 data-nosnippet>321</a>
<a href=#322 id=322 data-nosnippet>322</a> <span class="kw">let </span>input = NullVector::new(<span class="number">3</span>);
<a href=#323 id=323 data-nosnippet>323</a> builder.extend_slice_of(<span class="kw-2">&amp;</span>input, <span class="number">1</span>, <span class="number">2</span>).unwrap();
<a href=#324 id=324 data-nosnippet>324</a> <span class="macro">assert!</span>(
<a href=#325 id=325 data-nosnippet>325</a> builder
<a href=#326 id=326 data-nosnippet>326</a> .extend_slice_of(<span class="kw-2">&amp;</span><span class="kw">crate</span>::vectors::Int32Vector::from_slice([<span class="number">13</span>]), <span class="number">0</span>, <span class="number">1</span>)
<a href=#327 id=327 data-nosnippet>327</a> .is_err()
<a href=#328 id=328 data-nosnippet>328</a> );
<a href=#329 id=329 data-nosnippet>329</a> <span class="kw">let </span>vector = builder.to_vector();
<a href=#330 id=330 data-nosnippet>330</a>
<a href=#331 id=331 data-nosnippet>331</a> <span class="kw">let </span>expect: VectorRef = Arc::new(input);
<a href=#332 id=332 data-nosnippet>332</a> <span class="macro">assert_eq!</span>(expect, vector);
<a href=#333 id=333 data-nosnippet>333</a> }
<a href=#334 id=334 data-nosnippet>334</a>
<a href=#335 id=335 data-nosnippet>335</a> <span class="attr">#[test]
<a href=#336 id=336 data-nosnippet>336</a> </span><span class="kw">fn </span>test_null_vector_builder_finish_cloned() {
<a href=#337 id=337 data-nosnippet>337</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = NullType.create_mutable_vector(<span class="number">3</span>);
<a href=#338 id=338 data-nosnippet>338</a> builder.push_null();
<a href=#339 id=339 data-nosnippet>339</a> builder.push_null();
<a href=#340 id=340 data-nosnippet>340</a> <span class="kw">let </span>vector = builder.to_vector_cloned();
<a href=#341 id=341 data-nosnippet>341</a> <span class="macro">assert_eq!</span>(vector.len(), <span class="number">2</span>);
<a href=#342 id=342 data-nosnippet>342</a> <span class="macro">assert_eq!</span>(vector.null_count(), <span class="number">2</span>);
<a href=#343 id=343 data-nosnippet>343</a> }
<a href=#344 id=344 data-nosnippet>344</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/operations.rs`."><title>operations.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>operations.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">mod </span>cast;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">mod </span>filter;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">mod </span>take;
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>std::sync::Arc;
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, <span class="prelude-ty">Result</span>};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span><span class="kw">crate</span>::types::LogicalPrimitiveType;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#24 id=24 data-nosnippet>24</a> BinaryVector, BooleanVector, ConcreteDataType, Decimal128Vector, ListVector, NullVector,
<a href=#25 id=25 data-nosnippet>25</a> PrimitiveVector, StringVector, UInt32Vector, Vector, VectorRef,
<a href=#26 id=26 data-nosnippet>26</a>};
<a href=#27 id=27 data-nosnippet>27</a>
<a href=#28 id=28 data-nosnippet>28</a><span class="doccomment">/// Vector compute operations.
<a href=#29 id=29 data-nosnippet>29</a></span><span class="kw">pub trait </span>VectorOp {
<a href=#30 id=30 data-nosnippet>30</a> <span class="doccomment">/// Filters the vector, returns elements matching the `filter` (i.e. where the values are true).
<a href=#31 id=31 data-nosnippet>31</a> ///
<a href=#32 id=32 data-nosnippet>32</a> /// Note that the nulls of `filter` are interpreted as `false` will lead to these elements being masked out.
<a href=#33 id=33 data-nosnippet>33</a> </span><span class="kw">fn </span>filter(<span class="kw-2">&amp;</span><span class="self">self</span>, filter: <span class="kw-2">&amp;</span>BooleanVector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt;;
<a href=#34 id=34 data-nosnippet>34</a>
<a href=#35 id=35 data-nosnippet>35</a> <span class="doccomment">/// Cast vector to the provided data type and return a new vector with type to_type, if possible.
<a href=#36 id=36 data-nosnippet>36</a> ///
<a href=#37 id=37 data-nosnippet>37</a> /// TODO(dennis) describe behaviors in details.
<a href=#38 id=38 data-nosnippet>38</a> </span><span class="kw">fn </span>cast(<span class="kw-2">&amp;</span><span class="self">self</span>, to_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt;;
<a href=#39 id=39 data-nosnippet>39</a>
<a href=#40 id=40 data-nosnippet>40</a> <span class="doccomment">/// Take elements from the vector by the given indices.
<a href=#41 id=41 data-nosnippet>41</a> ///
<a href=#42 id=42 data-nosnippet>42</a> /// # Panics
<a href=#43 id=43 data-nosnippet>43</a> /// Panics if an index is out of bounds.
<a href=#44 id=44 data-nosnippet>44</a> </span><span class="kw">fn </span>take(<span class="kw-2">&amp;</span><span class="self">self</span>, indices: <span class="kw-2">&amp;</span>UInt32Vector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt;;
<a href=#45 id=45 data-nosnippet>45</a>}
<a href=#46 id=46 data-nosnippet>46</a>
<a href=#47 id=47 data-nosnippet>47</a><span class="macro">macro_rules!</span> impl_scalar_vector_op {
<a href=#48 id=48 data-nosnippet>48</a> ($(<span class="macro-nonterminal">$VectorType</span>: ident),+) =&gt; {$(
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">impl </span>VectorOp <span class="kw">for </span><span class="macro-nonterminal">$VectorType </span>{
<a href=#50 id=50 data-nosnippet>50</a> <span class="kw">fn </span>filter(<span class="kw-2">&amp;</span><span class="self">self</span>, filter: <span class="kw-2">&amp;</span>BooleanVector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#51 id=51 data-nosnippet>51</a> <span class="macro">filter::filter_non_constant!</span>(<span class="self">self</span>, <span class="macro-nonterminal">$VectorType</span>, filter)
<a href=#52 id=52 data-nosnippet>52</a> }
<a href=#53 id=53 data-nosnippet>53</a>
<a href=#54 id=54 data-nosnippet>54</a> <span class="kw">fn </span>cast(<span class="kw-2">&amp;</span><span class="self">self</span>, to_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#55 id=55 data-nosnippet>55</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(vector) = <span class="self">self</span>.as_any().downcast_ref::&lt;BinaryVector&gt;() {
<a href=#56 id=56 data-nosnippet>56</a> <span class="kw">match </span>to_type {
<a href=#57 id=57 data-nosnippet>57</a> ConcreteDataType::Json(<span class="kw">_</span>) =&gt; {
<a href=#58 id=58 data-nosnippet>58</a> <span class="kw">let </span>json_vector = vector.convert_binary_to_json()<span class="question-mark">?</span>;
<a href=#59 id=59 data-nosnippet>59</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(Arc::new(json_vector) <span class="kw">as </span>VectorRef);
<a href=#60 id=60 data-nosnippet>60</a> }
<a href=#61 id=61 data-nosnippet>61</a> ConcreteDataType::Vector(d) =&gt; {
<a href=#62 id=62 data-nosnippet>62</a> <span class="kw">let </span>vector = vector.convert_binary_to_vector(d.dim)<span class="question-mark">?</span>;
<a href=#63 id=63 data-nosnippet>63</a> <span class="kw">return </span><span class="prelude-val">Ok</span>(Arc::new(vector) <span class="kw">as </span>VectorRef);
<a href=#64 id=64 data-nosnippet>64</a> }
<a href=#65 id=65 data-nosnippet>65</a> <span class="kw">_ </span>=&gt; {}
<a href=#66 id=66 data-nosnippet>66</a> }
<a href=#67 id=67 data-nosnippet>67</a> }
<a href=#68 id=68 data-nosnippet>68</a> <span class="macro">cast::cast_non_constant!</span>(<span class="self">self</span>, to_type)
<a href=#69 id=69 data-nosnippet>69</a> }
<a href=#70 id=70 data-nosnippet>70</a>
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">fn </span>take(<span class="kw-2">&amp;</span><span class="self">self</span>, indices: <span class="kw-2">&amp;</span>UInt32Vector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#72 id=72 data-nosnippet>72</a> <span class="macro">take::take_indices!</span>(<span class="self">self</span>, <span class="macro-nonterminal">$VectorType</span>, indices)
<a href=#73 id=73 data-nosnippet>73</a> }
<a href=#74 id=74 data-nosnippet>74</a> }
<a href=#75 id=75 data-nosnippet>75</a> )+};
<a href=#76 id=76 data-nosnippet>76</a>}
<a href=#77 id=77 data-nosnippet>77</a>
<a href=#78 id=78 data-nosnippet>78</a><span class="macro">impl_scalar_vector_op!</span>(BinaryVector, BooleanVector, StringVector);
<a href=#79 id=79 data-nosnippet>79</a>
<a href=#80 id=80 data-nosnippet>80</a><span class="kw">impl </span>VectorOp <span class="kw">for </span>ListVector {
<a href=#81 id=81 data-nosnippet>81</a> <span class="kw">fn </span>filter(<span class="kw-2">&amp;</span><span class="self">self</span>, filter: <span class="kw-2">&amp;</span>BooleanVector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#82 id=82 data-nosnippet>82</a> <span class="macro">filter::filter_non_constant!</span>(<span class="self">self</span>, ListVector, filter)
<a href=#83 id=83 data-nosnippet>83</a> }
<a href=#84 id=84 data-nosnippet>84</a>
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">fn </span>cast(<span class="kw-2">&amp;</span><span class="self">self</span>, to_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#86 id=86 data-nosnippet>86</a> <span class="macro">cast::cast_non_constant!</span>(<span class="self">self</span>, to_type)
<a href=#87 id=87 data-nosnippet>87</a> }
<a href=#88 id=88 data-nosnippet>88</a>
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">fn </span>take(<span class="kw-2">&amp;</span><span class="self">self</span>, indices: <span class="kw-2">&amp;</span>UInt32Vector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#90 id=90 data-nosnippet>90</a> <span class="macro">take::take_indices!</span>(<span class="self">self</span>, ListVector, indices)
<a href=#91 id=91 data-nosnippet>91</a> }
<a href=#92 id=92 data-nosnippet>92</a>}
<a href=#93 id=93 data-nosnippet>93</a>
<a href=#94 id=94 data-nosnippet>94</a><span class="kw">impl </span>VectorOp <span class="kw">for </span>Decimal128Vector {
<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">fn </span>filter(<span class="kw-2">&amp;</span><span class="self">self</span>, filter: <span class="kw-2">&amp;</span>BooleanVector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#96 id=96 data-nosnippet>96</a> <span class="macro">filter::filter_non_constant!</span>(<span class="self">self</span>, Decimal128Vector, filter)
<a href=#97 id=97 data-nosnippet>97</a> }
<a href=#98 id=98 data-nosnippet>98</a>
<a href=#99 id=99 data-nosnippet>99</a> <span class="kw">fn </span>cast(<span class="kw-2">&amp;</span><span class="self">self</span>, to_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#100 id=100 data-nosnippet>100</a> <span class="macro">cast::cast_non_constant!</span>(<span class="self">self</span>, to_type)
<a href=#101 id=101 data-nosnippet>101</a> }
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a> <span class="kw">fn </span>take(<span class="kw-2">&amp;</span><span class="self">self</span>, indices: <span class="kw-2">&amp;</span>UInt32Vector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#104 id=104 data-nosnippet>104</a> <span class="macro">take::take_indices!</span>(<span class="self">self</span>, Decimal128Vector, indices)
<a href=#105 id=105 data-nosnippet>105</a> }
<a href=#106 id=106 data-nosnippet>106</a>}
<a href=#107 id=107 data-nosnippet>107</a>
<a href=#108 id=108 data-nosnippet>108</a><span class="kw">impl</span>&lt;T: LogicalPrimitiveType&gt; VectorOp <span class="kw">for </span>PrimitiveVector&lt;T&gt; {
<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">fn </span>filter(<span class="kw-2">&amp;</span><span class="self">self</span>, filter: <span class="kw-2">&amp;</span>BooleanVector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#110 id=110 data-nosnippet>110</a> <span class="macro">filter::filter_non_constant!</span>(<span class="self">self</span>, PrimitiveVector&lt;T&gt;, filter)
<a href=#111 id=111 data-nosnippet>111</a> }
<a href=#112 id=112 data-nosnippet>112</a>
<a href=#113 id=113 data-nosnippet>113</a> <span class="kw">fn </span>cast(<span class="kw-2">&amp;</span><span class="self">self</span>, to_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#114 id=114 data-nosnippet>114</a> <span class="macro">cast::cast_non_constant!</span>(<span class="self">self</span>, to_type)
<a href=#115 id=115 data-nosnippet>115</a> }
<a href=#116 id=116 data-nosnippet>116</a>
<a href=#117 id=117 data-nosnippet>117</a> <span class="kw">fn </span>take(<span class="kw-2">&amp;</span><span class="self">self</span>, indices: <span class="kw-2">&amp;</span>UInt32Vector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#118 id=118 data-nosnippet>118</a> <span class="macro">take::take_indices!</span>(<span class="self">self</span>, PrimitiveVector&lt;T&gt;, indices)
<a href=#119 id=119 data-nosnippet>119</a> }
<a href=#120 id=120 data-nosnippet>120</a>}
<a href=#121 id=121 data-nosnippet>121</a>
<a href=#122 id=122 data-nosnippet>122</a><span class="kw">impl </span>VectorOp <span class="kw">for </span>NullVector {
<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">fn </span>filter(<span class="kw-2">&amp;</span><span class="self">self</span>, filter: <span class="kw-2">&amp;</span>BooleanVector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#124 id=124 data-nosnippet>124</a> <span class="macro">filter::filter_non_constant!</span>(<span class="self">self</span>, NullVector, filter)
<a href=#125 id=125 data-nosnippet>125</a> }
<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">fn </span>cast(<span class="kw-2">&amp;</span><span class="self">self</span>, _to_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#127 id=127 data-nosnippet>127</a> <span class="comment">// TODO(dennis): impl it when NullVector has other datatype.
<a href=#128 id=128 data-nosnippet>128</a> </span>error::UnsupportedOperationSnafu {
<a href=#129 id=129 data-nosnippet>129</a> op: <span class="string">"cast"</span>,
<a href=#130 id=130 data-nosnippet>130</a> vector_type: <span class="self">self</span>.vector_type_name(),
<a href=#131 id=131 data-nosnippet>131</a> }
<a href=#132 id=132 data-nosnippet>132</a> .fail()
<a href=#133 id=133 data-nosnippet>133</a> }
<a href=#134 id=134 data-nosnippet>134</a>
<a href=#135 id=135 data-nosnippet>135</a> <span class="kw">fn </span>take(<span class="kw-2">&amp;</span><span class="self">self</span>, indices: <span class="kw-2">&amp;</span>UInt32Vector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#136 id=136 data-nosnippet>136</a> <span class="macro">take::take_indices!</span>(<span class="self">self</span>, NullVector, indices)
<a href=#137 id=137 data-nosnippet>137</a> }
<a href=#138 id=138 data-nosnippet>138</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/operations/cast.rs`."><title>cast.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/operations/</div>cast.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="macro">macro_rules!</span> cast_non_constant {
<a href=#16 id=16 data-nosnippet>16</a> (<span class="macro-nonterminal">$vector</span>: expr, <span class="macro-nonterminal">$to_type</span>: expr) =&gt; {{
<a href=#17 id=17 data-nosnippet>17</a> <span class="kw">use </span>arrow::compute;
<a href=#18 id=18 data-nosnippet>18</a> <span class="kw">use </span>snafu::ResultExt;
<a href=#19 id=19 data-nosnippet>19</a>
<a href=#20 id=20 data-nosnippet>20</a> <span class="kw">use </span><span class="kw">crate</span>::data_type::DataType;
<a href=#21 id=21 data-nosnippet>21</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::helper::Helper;
<a href=#22 id=22 data-nosnippet>22</a>
<a href=#23 id=23 data-nosnippet>23</a> <span class="kw">let </span>arrow_array = <span class="macro-nonterminal">$vector</span>.to_arrow_array();
<a href=#24 id=24 data-nosnippet>24</a> <span class="kw">let </span>casted = compute::cast(<span class="kw-2">&amp;</span>arrow_array, <span class="kw-2">&amp;</span><span class="macro-nonterminal">$to_type</span>.as_arrow_type())
<a href=#25 id=25 data-nosnippet>25</a> .context(<span class="kw">crate</span>::error::ArrowComputeSnafu)<span class="question-mark">?</span>;
<a href=#26 id=26 data-nosnippet>26</a> Helper::try_into_vector(casted)
<a href=#27 id=27 data-nosnippet>27</a> }};
<a href=#28 id=28 data-nosnippet>28</a>}
<a href=#29 id=29 data-nosnippet>29</a>
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>cast_non_constant;
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="doccomment">/// There are already many test cases in arrow:
<a href=#33 id=33 data-nosnippet>33</a>/// https://github.com/apache/arrow-rs/blob/59016e53e5cfa1d368009ed640d1f3dce326e7bb/arrow-cast/src/cast.rs#L3349-L7584
<a href=#34 id=34 data-nosnippet>34</a>/// So we don't(can't) want to copy these cases, just test some cases which are important for us.
<a href=#35 id=35 data-nosnippet>35</a></span><span class="attr">#[cfg(test)]
<a href=#36 id=36 data-nosnippet>36</a></span><span class="kw">mod </span>tests {
<a href=#37 id=37 data-nosnippet>37</a> <span class="kw">use </span>std::sync::Arc;
<a href=#38 id=38 data-nosnippet>38</a>
<a href=#39 id=39 data-nosnippet>39</a> <span class="kw">use </span>common_time::date::Date;
<a href=#40 id=40 data-nosnippet>40</a> <span class="kw">use </span>common_time::timestamp::{TimeUnit, Timestamp};
<a href=#41 id=41 data-nosnippet>41</a>
<a href=#42 id=42 data-nosnippet>42</a> <span class="kw">use </span><span class="kw">crate</span>::types::{LogicalPrimitiveType, <span class="kw-2">*</span>};
<a href=#43 id=43 data-nosnippet>43</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::{ConcreteDataType, <span class="kw-2">*</span>};
<a href=#44 id=44 data-nosnippet>44</a>
<a href=#45 id=45 data-nosnippet>45</a> <span class="kw">fn </span>get_cast_values&lt;T&gt;(vector: <span class="kw-2">&amp;</span>VectorRef, dt: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; Vec&lt;String&gt;
<a href=#46 id=46 data-nosnippet>46</a> <span class="kw">where
<a href=#47 id=47 data-nosnippet>47</a> </span>T: LogicalPrimitiveType,
<a href=#48 id=48 data-nosnippet>48</a> {
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">let </span>c = vector.cast(dt).unwrap();
<a href=#50 id=50 data-nosnippet>50</a> <span class="kw">let </span>a = c.as_any().downcast_ref::&lt;PrimitiveVector&lt;T&gt;&gt;().unwrap();
<a href=#51 id=51 data-nosnippet>51</a> <span class="kw">let </span><span class="kw-2">mut </span>v: Vec&lt;String&gt; = <span class="macro">vec!</span>[];
<a href=#52 id=52 data-nosnippet>52</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..vector.len() {
<a href=#53 id=53 data-nosnippet>53</a> <span class="kw">if </span>a.is_null(i) {
<a href=#54 id=54 data-nosnippet>54</a> v.push(<span class="string">"null"</span>.to_string())
<a href=#55 id=55 data-nosnippet>55</a> } <span class="kw">else </span>{
<a href=#56 id=56 data-nosnippet>56</a> v.push(<span class="macro">format!</span>(<span class="string">"{}"</span>, a.get(i)));
<a href=#57 id=57 data-nosnippet>57</a> }
<a href=#58 id=58 data-nosnippet>58</a> }
<a href=#59 id=59 data-nosnippet>59</a> v
<a href=#60 id=60 data-nosnippet>60</a> }
<a href=#61 id=61 data-nosnippet>61</a>
<a href=#62 id=62 data-nosnippet>62</a> <span class="attr">#[test]
<a href=#63 id=63 data-nosnippet>63</a> </span><span class="kw">fn </span>test_cast_from_f64() {
<a href=#64 id=64 data-nosnippet>64</a> <span class="kw">let </span>f64_values: Vec&lt;f64&gt; = <span class="macro">vec!</span>[
<a href=#65 id=65 data-nosnippet>65</a> i64::MIN <span class="kw">as </span>f64,
<a href=#66 id=66 data-nosnippet>66</a> i32::MIN <span class="kw">as </span>f64,
<a href=#67 id=67 data-nosnippet>67</a> i16::MIN <span class="kw">as </span>f64,
<a href=#68 id=68 data-nosnippet>68</a> i8::MIN <span class="kw">as </span>f64,
<a href=#69 id=69 data-nosnippet>69</a> <span class="number">0_f64</span>,
<a href=#70 id=70 data-nosnippet>70</a> u8::MAX <span class="kw">as </span>f64,
<a href=#71 id=71 data-nosnippet>71</a> u16::MAX <span class="kw">as </span>f64,
<a href=#72 id=72 data-nosnippet>72</a> u32::MAX <span class="kw">as </span>f64,
<a href=#73 id=73 data-nosnippet>73</a> u64::MAX <span class="kw">as </span>f64,
<a href=#74 id=74 data-nosnippet>74</a> ];
<a href=#75 id=75 data-nosnippet>75</a> <span class="kw">let </span>f64_vector: VectorRef = Arc::new(Float64Vector::from_slice(f64_values));
<a href=#76 id=76 data-nosnippet>76</a>
<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">let </span>f64_expected = <span class="macro">vec!</span>[
<a href=#78 id=78 data-nosnippet>78</a> -<span class="number">9223372036854776000.0</span>,
<a href=#79 id=79 data-nosnippet>79</a> -<span class="number">2147483648.0</span>,
<a href=#80 id=80 data-nosnippet>80</a> -<span class="number">32768.0</span>,
<a href=#81 id=81 data-nosnippet>81</a> -<span class="number">128.0</span>,
<a href=#82 id=82 data-nosnippet>82</a> <span class="number">0.0</span>,
<a href=#83 id=83 data-nosnippet>83</a> <span class="number">255.0</span>,
<a href=#84 id=84 data-nosnippet>84</a> <span class="number">65535.0</span>,
<a href=#85 id=85 data-nosnippet>85</a> <span class="number">4294967295.0</span>,
<a href=#86 id=86 data-nosnippet>86</a> <span class="number">18446744073709552000.0</span>,
<a href=#87 id=87 data-nosnippet>87</a> ];
<a href=#88 id=88 data-nosnippet>88</a> <span class="macro">assert_eq!</span>(
<a href=#89 id=89 data-nosnippet>89</a> f64_expected,
<a href=#90 id=90 data-nosnippet>90</a> get_cast_values::&lt;Float64Type&gt;(<span class="kw-2">&amp;</span>f64_vector, <span class="kw-2">&amp;</span>ConcreteDataType::float64_datatype())
<a href=#91 id=91 data-nosnippet>91</a> .iter()
<a href=#92 id=92 data-nosnippet>92</a> .map(|i| i.parse::&lt;f64&gt;().unwrap())
<a href=#93 id=93 data-nosnippet>93</a> .collect::&lt;Vec&lt;f64&gt;&gt;()
<a href=#94 id=94 data-nosnippet>94</a> );
<a href=#95 id=95 data-nosnippet>95</a>
<a href=#96 id=96 data-nosnippet>96</a> <span class="kw">let </span>i64_expected = <span class="macro">vec!</span>[
<a href=#97 id=97 data-nosnippet>97</a> <span class="string">"-9223372036854775808"</span>,
<a href=#98 id=98 data-nosnippet>98</a> <span class="string">"-2147483648"</span>,
<a href=#99 id=99 data-nosnippet>99</a> <span class="string">"-32768"</span>,
<a href=#100 id=100 data-nosnippet>100</a> <span class="string">"-128"</span>,
<a href=#101 id=101 data-nosnippet>101</a> <span class="string">"0"</span>,
<a href=#102 id=102 data-nosnippet>102</a> <span class="string">"255"</span>,
<a href=#103 id=103 data-nosnippet>103</a> <span class="string">"65535"</span>,
<a href=#104 id=104 data-nosnippet>104</a> <span class="string">"4294967295"</span>,
<a href=#105 id=105 data-nosnippet>105</a> <span class="string">"null"</span>,
<a href=#106 id=106 data-nosnippet>106</a> ];
<a href=#107 id=107 data-nosnippet>107</a> <span class="macro">assert_eq!</span>(
<a href=#108 id=108 data-nosnippet>108</a> i64_expected,
<a href=#109 id=109 data-nosnippet>109</a> get_cast_values::&lt;Int64Type&gt;(<span class="kw-2">&amp;</span>f64_vector, <span class="kw-2">&amp;</span>ConcreteDataType::int64_datatype())
<a href=#110 id=110 data-nosnippet>110</a> );
<a href=#111 id=111 data-nosnippet>111</a>
<a href=#112 id=112 data-nosnippet>112</a> <span class="kw">let </span>u64_expected = <span class="macro">vec!</span>[
<a href=#113 id=113 data-nosnippet>113</a> <span class="string">"null"</span>,
<a href=#114 id=114 data-nosnippet>114</a> <span class="string">"null"</span>,
<a href=#115 id=115 data-nosnippet>115</a> <span class="string">"null"</span>,
<a href=#116 id=116 data-nosnippet>116</a> <span class="string">"null"</span>,
<a href=#117 id=117 data-nosnippet>117</a> <span class="string">"0"</span>,
<a href=#118 id=118 data-nosnippet>118</a> <span class="string">"255"</span>,
<a href=#119 id=119 data-nosnippet>119</a> <span class="string">"65535"</span>,
<a href=#120 id=120 data-nosnippet>120</a> <span class="string">"4294967295"</span>,
<a href=#121 id=121 data-nosnippet>121</a> <span class="string">"null"</span>,
<a href=#122 id=122 data-nosnippet>122</a> ];
<a href=#123 id=123 data-nosnippet>123</a> <span class="macro">assert_eq!</span>(
<a href=#124 id=124 data-nosnippet>124</a> u64_expected,
<a href=#125 id=125 data-nosnippet>125</a> get_cast_values::&lt;UInt64Type&gt;(<span class="kw-2">&amp;</span>f64_vector, <span class="kw-2">&amp;</span>ConcreteDataType::uint64_datatype())
<a href=#126 id=126 data-nosnippet>126</a> );
<a href=#127 id=127 data-nosnippet>127</a> }
<a href=#128 id=128 data-nosnippet>128</a>
<a href=#129 id=129 data-nosnippet>129</a> <span class="attr">#[test]
<a href=#130 id=130 data-nosnippet>130</a> </span><span class="kw">fn </span>test_cast_from_date() {
<a href=#131 id=131 data-nosnippet>131</a> <span class="kw">let </span>i32_values: Vec&lt;i32&gt; = <span class="macro">vec!</span>[
<a href=#132 id=132 data-nosnippet>132</a> i32::MIN,
<a href=#133 id=133 data-nosnippet>133</a> i16::MIN <span class="kw">as </span>i32,
<a href=#134 id=134 data-nosnippet>134</a> i8::MIN <span class="kw">as </span>i32,
<a href=#135 id=135 data-nosnippet>135</a> <span class="number">0</span>,
<a href=#136 id=136 data-nosnippet>136</a> i8::MAX <span class="kw">as </span>i32,
<a href=#137 id=137 data-nosnippet>137</a> i16::MAX <span class="kw">as </span>i32,
<a href=#138 id=138 data-nosnippet>138</a> i32::MAX,
<a href=#139 id=139 data-nosnippet>139</a> ];
<a href=#140 id=140 data-nosnippet>140</a> <span class="kw">let </span>date32_vector: VectorRef = Arc::new(DateVector::from_slice(i32_values));
<a href=#141 id=141 data-nosnippet>141</a>
<a href=#142 id=142 data-nosnippet>142</a> <span class="kw">let </span>i32_expected = <span class="macro">vec!</span>[
<a href=#143 id=143 data-nosnippet>143</a> <span class="string">"-2147483648"</span>,
<a href=#144 id=144 data-nosnippet>144</a> <span class="string">"-32768"</span>,
<a href=#145 id=145 data-nosnippet>145</a> <span class="string">"-128"</span>,
<a href=#146 id=146 data-nosnippet>146</a> <span class="string">"0"</span>,
<a href=#147 id=147 data-nosnippet>147</a> <span class="string">"127"</span>,
<a href=#148 id=148 data-nosnippet>148</a> <span class="string">"32767"</span>,
<a href=#149 id=149 data-nosnippet>149</a> <span class="string">"2147483647"</span>,
<a href=#150 id=150 data-nosnippet>150</a> ];
<a href=#151 id=151 data-nosnippet>151</a> <span class="macro">assert_eq!</span>(
<a href=#152 id=152 data-nosnippet>152</a> i32_expected,
<a href=#153 id=153 data-nosnippet>153</a> get_cast_values::&lt;Int32Type&gt;(<span class="kw-2">&amp;</span>date32_vector, <span class="kw-2">&amp;</span>ConcreteDataType::int32_datatype()),
<a href=#154 id=154 data-nosnippet>154</a> );
<a href=#155 id=155 data-nosnippet>155</a>
<a href=#156 id=156 data-nosnippet>156</a> <span class="kw">let </span>i64_expected = <span class="macro">vec!</span>[
<a href=#157 id=157 data-nosnippet>157</a> <span class="string">"-2147483648"</span>,
<a href=#158 id=158 data-nosnippet>158</a> <span class="string">"-32768"</span>,
<a href=#159 id=159 data-nosnippet>159</a> <span class="string">"-128"</span>,
<a href=#160 id=160 data-nosnippet>160</a> <span class="string">"0"</span>,
<a href=#161 id=161 data-nosnippet>161</a> <span class="string">"127"</span>,
<a href=#162 id=162 data-nosnippet>162</a> <span class="string">"32767"</span>,
<a href=#163 id=163 data-nosnippet>163</a> <span class="string">"2147483647"</span>,
<a href=#164 id=164 data-nosnippet>164</a> ];
<a href=#165 id=165 data-nosnippet>165</a> <span class="macro">assert_eq!</span>(
<a href=#166 id=166 data-nosnippet>166</a> i64_expected,
<a href=#167 id=167 data-nosnippet>167</a> get_cast_values::&lt;Int64Type&gt;(<span class="kw-2">&amp;</span>date32_vector, <span class="kw-2">&amp;</span>ConcreteDataType::int64_datatype()),
<a href=#168 id=168 data-nosnippet>168</a> );
<a href=#169 id=169 data-nosnippet>169</a> }
<a href=#170 id=170 data-nosnippet>170</a>
<a href=#171 id=171 data-nosnippet>171</a> <span class="attr">#[test]
<a href=#172 id=172 data-nosnippet>172</a> </span><span class="kw">fn </span>test_cast_timestamp_to_date32() {
<a href=#173 id=173 data-nosnippet>173</a> <span class="kw">let </span>vector =
<a href=#174 id=174 data-nosnippet>174</a> TimestampMillisecondVector::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">864000000005</span>), <span class="prelude-val">Some</span>(<span class="number">1545696000001</span>), <span class="prelude-val">None</span>]);
<a href=#175 id=175 data-nosnippet>175</a> <span class="kw">let </span>b = vector.cast(<span class="kw-2">&amp;</span>ConcreteDataType::date_datatype()).unwrap();
<a href=#176 id=176 data-nosnippet>176</a> <span class="kw">let </span>c = b.as_any().downcast_ref::&lt;DateVector&gt;().unwrap();
<a href=#177 id=177 data-nosnippet>177</a> <span class="macro">assert_eq!</span>(Value::Date(Date::from(<span class="number">10000</span>)), c.get(<span class="number">0</span>));
<a href=#178 id=178 data-nosnippet>178</a> <span class="macro">assert_eq!</span>(Value::Date(Date::from(<span class="number">17890</span>)), c.get(<span class="number">1</span>));
<a href=#179 id=179 data-nosnippet>179</a> <span class="macro">assert!</span>(c.is_null(<span class="number">2</span>));
<a href=#180 id=180 data-nosnippet>180</a> }
<a href=#181 id=181 data-nosnippet>181</a>
<a href=#182 id=182 data-nosnippet>182</a> <span class="attr">#[test]
<a href=#183 id=183 data-nosnippet>183</a> </span><span class="kw">fn </span>test_cast_string_to_timestamp() {
<a href=#184 id=184 data-nosnippet>184</a> <span class="kw">let </span>a1 = Arc::new(StringVector::from(<span class="macro">vec!</span>[
<a href=#185 id=185 data-nosnippet>185</a> <span class="prelude-val">Some</span>(<span class="string">"2020-09-08T12:00:00+00:00"</span>),
<a href=#186 id=186 data-nosnippet>186</a> <span class="prelude-val">Some</span>(<span class="string">"Not a valid date"</span>),
<a href=#187 id=187 data-nosnippet>187</a> <span class="prelude-val">None</span>,
<a href=#188 id=188 data-nosnippet>188</a> ])) <span class="kw">as </span>VectorRef;
<a href=#189 id=189 data-nosnippet>189</a> <span class="kw">let </span>a2 = Arc::new(StringVector::from(<span class="macro">vec!</span>[
<a href=#190 id=190 data-nosnippet>190</a> <span class="prelude-val">Some</span>(<span class="string">"2020-09-08T12:00:00+00:00"</span>),
<a href=#191 id=191 data-nosnippet>191</a> <span class="prelude-val">Some</span>(<span class="string">"Not a valid date"</span>),
<a href=#192 id=192 data-nosnippet>192</a> <span class="prelude-val">None</span>,
<a href=#193 id=193 data-nosnippet>193</a> ])) <span class="kw">as </span>VectorRef;
<a href=#194 id=194 data-nosnippet>194</a>
<a href=#195 id=195 data-nosnippet>195</a> <span class="kw">for </span>array <span class="kw">in </span><span class="kw-2">&amp;</span>[a1, a2] {
<a href=#196 id=196 data-nosnippet>196</a> <span class="kw">let </span>to_type = ConcreteDataType::timestamp_nanosecond_datatype();
<a href=#197 id=197 data-nosnippet>197</a> <span class="kw">let </span>b = array.cast(<span class="kw-2">&amp;</span>to_type).unwrap();
<a href=#198 id=198 data-nosnippet>198</a> <span class="kw">let </span>c = b
<a href=#199 id=199 data-nosnippet>199</a> .as_any()
<a href=#200 id=200 data-nosnippet>200</a> .downcast_ref::&lt;TimestampNanosecondVector&gt;()
<a href=#201 id=201 data-nosnippet>201</a> .unwrap();
<a href=#202 id=202 data-nosnippet>202</a> <span class="macro">assert_eq!</span>(
<a href=#203 id=203 data-nosnippet>203</a> Value::Timestamp(Timestamp::new(<span class="number">1599566400000000000</span>, TimeUnit::Nanosecond)),
<a href=#204 id=204 data-nosnippet>204</a> c.get(<span class="number">0</span>)
<a href=#205 id=205 data-nosnippet>205</a> );
<a href=#206 id=206 data-nosnippet>206</a> <span class="macro">assert!</span>(c.is_null(<span class="number">1</span>));
<a href=#207 id=207 data-nosnippet>207</a> <span class="macro">assert!</span>(c.is_null(<span class="number">2</span>));
<a href=#208 id=208 data-nosnippet>208</a> }
<a href=#209 id=209 data-nosnippet>209</a> }
<a href=#210 id=210 data-nosnippet>210</a>
<a href=#211 id=211 data-nosnippet>211</a> <span class="attr">#[test]
<a href=#212 id=212 data-nosnippet>212</a> </span><span class="kw">fn </span>test_safe_cast_to_null() {
<a href=#213 id=213 data-nosnippet>213</a> <span class="kw">let </span>string_vector = Arc::new(StringVector::from(<span class="macro">vec!</span>[
<a href=#214 id=214 data-nosnippet>214</a> <span class="prelude-val">Some</span>(<span class="string">"1"</span>),
<a href=#215 id=215 data-nosnippet>215</a> <span class="prelude-val">Some</span>(<span class="string">"hello"</span>),
<a href=#216 id=216 data-nosnippet>216</a> <span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span>i64::MAX.to_string()),
<a href=#217 id=217 data-nosnippet>217</a> <span class="prelude-val">None</span>,
<a href=#218 id=218 data-nosnippet>218</a> ])) <span class="kw">as </span>VectorRef;
<a href=#219 id=219 data-nosnippet>219</a> <span class="kw">let </span>to_type = ConcreteDataType::int32_datatype();
<a href=#220 id=220 data-nosnippet>220</a> <span class="kw">let </span>b = string_vector.cast(<span class="kw-2">&amp;</span>to_type).unwrap();
<a href=#221 id=221 data-nosnippet>221</a> <span class="kw">let </span>c = b.as_any().downcast_ref::&lt;Int32Vector&gt;().unwrap();
<a href=#222 id=222 data-nosnippet>222</a> <span class="macro">assert_eq!</span>(Value::Int32(<span class="number">1</span>), c.get(<span class="number">0</span>));
<a href=#223 id=223 data-nosnippet>223</a> <span class="macro">assert_eq!</span>(Value::Null, c.get(<span class="number">1</span>));
<a href=#224 id=224 data-nosnippet>224</a> <span class="macro">assert_eq!</span>(Value::Null, c.get(<span class="number">2</span>));
<a href=#225 id=225 data-nosnippet>225</a> <span class="macro">assert_eq!</span>(Value::Null, c.get(<span class="number">3</span>));
<a href=#226 id=226 data-nosnippet>226</a> }
<a href=#227 id=227 data-nosnippet>227</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/operations/filter.rs`."><title>filter.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/operations/</div>filter.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="macro">macro_rules!</span> filter_non_constant {
<a href=#16 id=16 data-nosnippet>16</a> (<span class="macro-nonterminal">$vector</span>: expr, <span class="macro-nonterminal">$VectorType</span>: ty, <span class="macro-nonterminal">$filter</span>: ident) =&gt; {{
<a href=#17 id=17 data-nosnippet>17</a> <span class="kw">use </span>std::sync::Arc;
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a> <span class="kw">use </span>arrow::compute;
<a href=#20 id=20 data-nosnippet>20</a> <span class="kw">use </span>snafu::ResultExt;
<a href=#21 id=21 data-nosnippet>21</a>
<a href=#22 id=22 data-nosnippet>22</a> <span class="kw">let </span>arrow_array = <span class="macro-nonterminal">$vector</span>.as_arrow();
<a href=#23 id=23 data-nosnippet>23</a> <span class="kw">let </span>filtered = compute::filter(arrow_array, <span class="macro-nonterminal">$filter</span>.as_boolean_array())
<a href=#24 id=24 data-nosnippet>24</a> .context(<span class="kw">crate</span>::error::ArrowComputeSnafu)<span class="question-mark">?</span>;
<a href=#25 id=25 data-nosnippet>25</a> <span class="prelude-val">Ok</span>(Arc::new(&lt;<span class="macro-nonterminal">$VectorType</span>&gt;::try_from_arrow_array(filtered)<span class="question-mark">?</span>))
<a href=#26 id=26 data-nosnippet>26</a> }};
<a href=#27 id=27 data-nosnippet>27</a>}
<a href=#28 id=28 data-nosnippet>28</a>
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>filter_non_constant;
<a href=#30 id=30 data-nosnippet>30</a>
<a href=#31 id=31 data-nosnippet>31</a><span class="attr">#[cfg(test)]
<a href=#32 id=32 data-nosnippet>32</a></span><span class="kw">mod </span>tests {
<a href=#33 id=33 data-nosnippet>33</a> <span class="kw">use </span>std::sync::Arc;
<a href=#34 id=34 data-nosnippet>34</a>
<a href=#35 id=35 data-nosnippet>35</a> <span class="kw">use </span>common_time::Date;
<a href=#36 id=36 data-nosnippet>36</a>
<a href=#37 id=37 data-nosnippet>37</a> <span class="kw">use </span><span class="kw">crate</span>::scalars::ScalarVector;
<a href=#38 id=38 data-nosnippet>38</a> <span class="kw">use </span><span class="kw">crate</span>::timestamp::{
<a href=#39 id=39 data-nosnippet>39</a> TimestampMicrosecond, TimestampMillisecond, TimestampNanosecond, TimestampSecond,
<a href=#40 id=40 data-nosnippet>40</a> };
<a href=#41 id=41 data-nosnippet>41</a> <span class="kw">use </span><span class="kw">crate</span>::types::WrapperType;
<a href=#42 id=42 data-nosnippet>42</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#43 id=43 data-nosnippet>43</a> BooleanVector, Int32Vector, NullVector, StringVector, VectorOp, VectorRef,
<a href=#44 id=44 data-nosnippet>44</a> };
<a href=#45 id=45 data-nosnippet>45</a>
<a href=#46 id=46 data-nosnippet>46</a> <span class="kw">fn </span>check_filter_primitive(expect: <span class="kw-2">&amp;</span>[i32], input: <span class="kw-2">&amp;</span>[i32], filter: <span class="kw-2">&amp;</span>[bool]) {
<a href=#47 id=47 data-nosnippet>47</a> <span class="kw">let </span>v = Int32Vector::from_slice(input);
<a href=#48 id=48 data-nosnippet>48</a> <span class="kw">let </span>filter = BooleanVector::from_slice(filter);
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">let </span>out = v.filter(<span class="kw-2">&amp;</span>filter).unwrap();
<a href=#50 id=50 data-nosnippet>50</a>
<a href=#51 id=51 data-nosnippet>51</a> <span class="kw">let </span>expect: VectorRef = Arc::new(Int32Vector::from_slice(expect));
<a href=#52 id=52 data-nosnippet>52</a> <span class="macro">assert_eq!</span>(expect, out);
<a href=#53 id=53 data-nosnippet>53</a> }
<a href=#54 id=54 data-nosnippet>54</a>
<a href=#55 id=55 data-nosnippet>55</a> <span class="attr">#[test]
<a href=#56 id=56 data-nosnippet>56</a> </span><span class="kw">fn </span>test_filter_primitive() {
<a href=#57 id=57 data-nosnippet>57</a> check_filter_primitive(<span class="kw-2">&amp;</span>[], <span class="kw-2">&amp;</span>[], <span class="kw-2">&amp;</span>[]);
<a href=#58 id=58 data-nosnippet>58</a> check_filter_primitive(<span class="kw-2">&amp;</span>[<span class="number">5</span>], <span class="kw-2">&amp;</span>[<span class="number">5</span>], <span class="kw-2">&amp;</span>[<span class="bool-val">true</span>]);
<a href=#59 id=59 data-nosnippet>59</a> check_filter_primitive(<span class="kw-2">&amp;</span>[], <span class="kw-2">&amp;</span>[<span class="number">5</span>], <span class="kw-2">&amp;</span>[<span class="bool-val">false</span>]);
<a href=#60 id=60 data-nosnippet>60</a> check_filter_primitive(<span class="kw-2">&amp;</span>[], <span class="kw-2">&amp;</span>[<span class="number">5</span>, <span class="number">6</span>], <span class="kw-2">&amp;</span>[<span class="bool-val">false</span>, <span class="bool-val">false</span>]);
<a href=#61 id=61 data-nosnippet>61</a> check_filter_primitive(<span class="kw-2">&amp;</span>[<span class="number">5</span>, <span class="number">6</span>], <span class="kw-2">&amp;</span>[<span class="number">5</span>, <span class="number">6</span>], <span class="kw-2">&amp;</span>[<span class="bool-val">true</span>, <span class="bool-val">true</span>]);
<a href=#62 id=62 data-nosnippet>62</a> check_filter_primitive(<span class="kw-2">&amp;</span>[], <span class="kw-2">&amp;</span>[<span class="number">5</span>, <span class="number">6</span>, <span class="number">7</span>], <span class="kw-2">&amp;</span>[<span class="bool-val">false</span>, <span class="bool-val">false</span>, <span class="bool-val">false</span>]);
<a href=#63 id=63 data-nosnippet>63</a> check_filter_primitive(<span class="kw-2">&amp;</span>[<span class="number">5</span>], <span class="kw-2">&amp;</span>[<span class="number">5</span>, <span class="number">6</span>, <span class="number">7</span>], <span class="kw-2">&amp;</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">false</span>]);
<a href=#64 id=64 data-nosnippet>64</a> check_filter_primitive(<span class="kw-2">&amp;</span>[<span class="number">6</span>], <span class="kw-2">&amp;</span>[<span class="number">5</span>, <span class="number">6</span>, <span class="number">7</span>], <span class="kw-2">&amp;</span>[<span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>]);
<a href=#65 id=65 data-nosnippet>65</a> check_filter_primitive(<span class="kw-2">&amp;</span>[<span class="number">7</span>], <span class="kw-2">&amp;</span>[<span class="number">5</span>, <span class="number">6</span>, <span class="number">7</span>], <span class="kw-2">&amp;</span>[<span class="bool-val">false</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>]);
<a href=#66 id=66 data-nosnippet>66</a> check_filter_primitive(<span class="kw-2">&amp;</span>[<span class="number">5</span>, <span class="number">7</span>], <span class="kw-2">&amp;</span>[<span class="number">5</span>, <span class="number">6</span>, <span class="number">7</span>], <span class="kw-2">&amp;</span>[<span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>]);
<a href=#67 id=67 data-nosnippet>67</a> }
<a href=#68 id=68 data-nosnippet>68</a>
<a href=#69 id=69 data-nosnippet>69</a> <span class="attr">#[test]
<a href=#70 id=70 data-nosnippet>70</a> </span><span class="kw">fn </span>test_filter_scalar() {
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">let </span>v = StringVector::from_slice(<span class="kw-2">&amp;</span>[<span class="string">"0"</span>, <span class="string">"1"</span>, <span class="string">"2"</span>, <span class="string">"3"</span>]);
<a href=#72 id=72 data-nosnippet>72</a> <span class="kw">let </span>filter = BooleanVector::from_slice(<span class="kw-2">&amp;</span>[<span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>]);
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">let </span>out = v.filter(<span class="kw-2">&amp;</span>filter).unwrap();
<a href=#74 id=74 data-nosnippet>74</a>
<a href=#75 id=75 data-nosnippet>75</a> <span class="kw">let </span>expect: VectorRef = Arc::new(StringVector::from_slice(<span class="kw-2">&amp;</span>[<span class="string">"1"</span>, <span class="string">"3"</span>]));
<a href=#76 id=76 data-nosnippet>76</a> <span class="macro">assert_eq!</span>(expect, out);
<a href=#77 id=77 data-nosnippet>77</a> }
<a href=#78 id=78 data-nosnippet>78</a>
<a href=#79 id=79 data-nosnippet>79</a> <span class="attr">#[test]
<a href=#80 id=80 data-nosnippet>80</a> </span><span class="kw">fn </span>test_filter_null() {
<a href=#81 id=81 data-nosnippet>81</a> <span class="kw">let </span>v = NullVector::new(<span class="number">5</span>);
<a href=#82 id=82 data-nosnippet>82</a> <span class="kw">let </span>filter = BooleanVector::from_slice(<span class="kw-2">&amp;</span>[<span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>]);
<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">let </span>out = v.filter(<span class="kw-2">&amp;</span>filter).unwrap();
<a href=#84 id=84 data-nosnippet>84</a>
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">let </span>expect: VectorRef = Arc::new(NullVector::new(<span class="number">3</span>));
<a href=#86 id=86 data-nosnippet>86</a> <span class="macro">assert_eq!</span>(expect, out);
<a href=#87 id=87 data-nosnippet>87</a> }
<a href=#88 id=88 data-nosnippet>88</a>
<a href=#89 id=89 data-nosnippet>89</a> <span class="macro">macro_rules!</span> impl_filter_date_like_test {
<a href=#90 id=90 data-nosnippet>90</a> (<span class="macro-nonterminal">$VectorType</span>: ident, <span class="macro-nonterminal">$ValueType</span>: ident, <span class="macro-nonterminal">$method</span>: ident) =&gt; {{
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">use </span>std::sync::Arc;
<a href=#92 id=92 data-nosnippet>92</a>
<a href=#93 id=93 data-nosnippet>93</a> <span class="kw">use </span><span class="macro-nonterminal">$crate::vectors:</span>:{VectorRef, <span class="macro-nonterminal">$VectorType</span>};
<a href=#94 id=94 data-nosnippet>94</a>
<a href=#95 id=95 data-nosnippet>95</a> <span class="kw">let </span>v = <span class="macro-nonterminal">$VectorType::from_iterator</span>((<span class="number">0</span>..<span class="number">5</span>).map(<span class="macro-nonterminal">$ValueType:</span>:<span class="macro-nonterminal">$method</span>));
<a href=#96 id=96 data-nosnippet>96</a> <span class="kw">let </span>filter = BooleanVector::from_slice(<span class="kw-2">&amp;</span>[<span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">true</span>]);
<a href=#97 id=97 data-nosnippet>97</a> <span class="kw">let </span>out = v.filter(<span class="kw-2">&amp;</span>filter).unwrap();
<a href=#98 id=98 data-nosnippet>98</a>
<a href=#99 id=99 data-nosnippet>99</a> <span class="kw">let </span>expect: VectorRef = Arc::new(<span class="macro-nonterminal">$VectorType::from_iterator</span>(
<a href=#100 id=100 data-nosnippet>100</a> [<span class="number">1</span>, <span class="number">3</span>, <span class="number">4</span>].into_iter().map(<span class="macro-nonterminal">$ValueType:</span>:<span class="macro-nonterminal">$method</span>),
<a href=#101 id=101 data-nosnippet>101</a> ));
<a href=#102 id=102 data-nosnippet>102</a> <span class="macro">assert_eq!</span>(expect, out);
<a href=#103 id=103 data-nosnippet>103</a> }};
<a href=#104 id=104 data-nosnippet>104</a> }
<a href=#105 id=105 data-nosnippet>105</a>
<a href=#106 id=106 data-nosnippet>106</a> <span class="attr">#[test]
<a href=#107 id=107 data-nosnippet>107</a> </span><span class="kw">fn </span>test_filter_date_like() {
<a href=#108 id=108 data-nosnippet>108</a> <span class="macro">impl_filter_date_like_test!</span>(DateVector, Date, new);
<a href=#109 id=109 data-nosnippet>109</a> <span class="macro">impl_filter_date_like_test!</span>(TimestampSecondVector, TimestampSecond, from_native);
<a href=#110 id=110 data-nosnippet>110</a> <span class="macro">impl_filter_date_like_test!</span>(
<a href=#111 id=111 data-nosnippet>111</a> TimestampMillisecondVector,
<a href=#112 id=112 data-nosnippet>112</a> TimestampMillisecond,
<a href=#113 id=113 data-nosnippet>113</a> from_native
<a href=#114 id=114 data-nosnippet>114</a> );
<a href=#115 id=115 data-nosnippet>115</a> <span class="macro">impl_filter_date_like_test!</span>(
<a href=#116 id=116 data-nosnippet>116</a> TimestampMicrosecondVector,
<a href=#117 id=117 data-nosnippet>117</a> TimestampMicrosecond,
<a href=#118 id=118 data-nosnippet>118</a> from_native
<a href=#119 id=119 data-nosnippet>119</a> );
<a href=#120 id=120 data-nosnippet>120</a> <span class="macro">impl_filter_date_like_test!</span>(TimestampNanosecondVector, TimestampNanosecond, from_native);
<a href=#121 id=121 data-nosnippet>121</a> }
<a href=#122 id=122 data-nosnippet>122</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/operations/take.rs`."><title>take.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../../static.files/src-script-813739b1.js"></script><script defer src="../../../../src-files.js"></script><script defer src="../../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/operations/</div>take.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="macro">macro_rules!</span> take_indices {
<a href=#16 id=16 data-nosnippet>16</a> (<span class="macro-nonterminal">$vector</span>: expr, <span class="macro-nonterminal">$VectorType</span>: ty, <span class="macro-nonterminal">$indices</span>: ident) =&gt; {{
<a href=#17 id=17 data-nosnippet>17</a> <span class="kw">use </span>std::sync::Arc;
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a> <span class="kw">use </span>arrow::compute;
<a href=#20 id=20 data-nosnippet>20</a> <span class="kw">use </span>snafu::ResultExt;
<a href=#21 id=21 data-nosnippet>21</a>
<a href=#22 id=22 data-nosnippet>22</a> <span class="kw">let </span>arrow_array = <span class="macro-nonterminal">$vector</span>.as_arrow();
<a href=#23 id=23 data-nosnippet>23</a> <span class="kw">let </span>taken = compute::take(arrow_array, <span class="macro-nonterminal">$indices</span>.as_arrow(), <span class="prelude-val">None</span>)
<a href=#24 id=24 data-nosnippet>24</a> .context(<span class="kw">crate</span>::error::ArrowComputeSnafu)<span class="question-mark">?</span>;
<a href=#25 id=25 data-nosnippet>25</a> <span class="prelude-val">Ok</span>(Arc::new(&lt;<span class="macro-nonterminal">$VectorType</span>&gt;::try_from_arrow_array(taken)<span class="question-mark">?</span>))
<a href=#26 id=26 data-nosnippet>26</a> }};
<a href=#27 id=27 data-nosnippet>27</a>}
<a href=#28 id=28 data-nosnippet>28</a>
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>take_indices;
<a href=#30 id=30 data-nosnippet>30</a>
<a href=#31 id=31 data-nosnippet>31</a><span class="attr">#[cfg(test)]
<a href=#32 id=32 data-nosnippet>32</a></span><span class="kw">mod </span>tests {
<a href=#33 id=33 data-nosnippet>33</a> <span class="kw">use </span>std::sync::Arc;
<a href=#34 id=34 data-nosnippet>34</a>
<a href=#35 id=35 data-nosnippet>35</a> <span class="kw">use </span>arrow::array::{PrimitiveArray, UInt32Array};
<a href=#36 id=36 data-nosnippet>36</a> <span class="kw">use </span>common_time::Date;
<a href=#37 id=37 data-nosnippet>37</a>
<a href=#38 id=38 data-nosnippet>38</a> <span class="kw">use </span><span class="kw">crate</span>::prelude::VectorRef;
<a href=#39 id=39 data-nosnippet>39</a> <span class="kw">use </span><span class="kw">crate</span>::scalars::ScalarVector;
<a href=#40 id=40 data-nosnippet>40</a> <span class="kw">use </span><span class="kw">crate</span>::timestamp::{
<a href=#41 id=41 data-nosnippet>41</a> TimestampMicrosecond, TimestampMillisecond, TimestampNanosecond, TimestampSecond,
<a href=#42 id=42 data-nosnippet>42</a> };
<a href=#43 id=43 data-nosnippet>43</a> <span class="kw">use </span><span class="kw">crate</span>::types::{LogicalPrimitiveType, WrapperType};
<a href=#44 id=44 data-nosnippet>44</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::operations::VectorOp;
<a href=#45 id=45 data-nosnippet>45</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#46 id=46 data-nosnippet>46</a> BooleanVector, Int32Vector, NullVector, PrimitiveVector, StringVector, UInt32Vector,
<a href=#47 id=47 data-nosnippet>47</a> };
<a href=#48 id=48 data-nosnippet>48</a>
<a href=#49 id=49 data-nosnippet>49</a> <span class="kw">fn </span>check_take_primitive&lt;T&gt;(
<a href=#50 id=50 data-nosnippet>50</a> input: Vec&lt;<span class="prelude-ty">Option</span>&lt;T::Native&gt;&gt;,
<a href=#51 id=51 data-nosnippet>51</a> indices: Vec&lt;<span class="prelude-ty">Option</span>&lt;u32&gt;&gt;,
<a href=#52 id=52 data-nosnippet>52</a> expect: Vec&lt;<span class="prelude-ty">Option</span>&lt;T::Native&gt;&gt;,
<a href=#53 id=53 data-nosnippet>53</a> ) <span class="kw">where
<a href=#54 id=54 data-nosnippet>54</a> </span>T: LogicalPrimitiveType,
<a href=#55 id=55 data-nosnippet>55</a> PrimitiveArray&lt;T::ArrowPrimitive&gt;: From&lt;Vec&lt;<span class="prelude-ty">Option</span>&lt;T::Native&gt;&gt;&gt;,
<a href=#56 id=56 data-nosnippet>56</a> {
<a href=#57 id=57 data-nosnippet>57</a> <span class="kw">let </span>v = PrimitiveVector::&lt;T&gt;::new(PrimitiveArray::&lt;T::ArrowPrimitive&gt;::from(input));
<a href=#58 id=58 data-nosnippet>58</a> <span class="kw">let </span>indices = UInt32Vector::new(UInt32Array::from(indices));
<a href=#59 id=59 data-nosnippet>59</a> <span class="kw">let </span>output = v.take(<span class="kw-2">&amp;</span>indices).unwrap();
<a href=#60 id=60 data-nosnippet>60</a>
<a href=#61 id=61 data-nosnippet>61</a> <span class="kw">let </span>expected: VectorRef = Arc::new(PrimitiveVector::&lt;T&gt;::new(PrimitiveArray::&lt;
<a href=#62 id=62 data-nosnippet>62</a> T::ArrowPrimitive,
<a href=#63 id=63 data-nosnippet>63</a> &gt;::from(expect)));
<a href=#64 id=64 data-nosnippet>64</a> <span class="macro">assert_eq!</span>(expected, output);
<a href=#65 id=65 data-nosnippet>65</a> }
<a href=#66 id=66 data-nosnippet>66</a>
<a href=#67 id=67 data-nosnippet>67</a> <span class="macro">macro_rules!</span> take_time_like_test {
<a href=#68 id=68 data-nosnippet>68</a> (<span class="macro-nonterminal">$VectorType</span>: ident, <span class="macro-nonterminal">$ValueType</span>: ident, <span class="macro-nonterminal">$method</span>: ident) =&gt; {{
<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">use </span><span class="macro-nonterminal">$crate::vectors:</span>:{VectorRef, <span class="macro-nonterminal">$VectorType</span>};
<a href=#70 id=70 data-nosnippet>70</a>
<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">let </span>v = <span class="macro-nonterminal">$VectorType::from_iterator</span>((<span class="number">0</span>..<span class="number">5</span>).map(<span class="macro-nonterminal">$ValueType:</span>:<span class="macro-nonterminal">$method</span>));
<a href=#72 id=72 data-nosnippet>72</a> <span class="kw">let </span>indices = UInt32Vector::from_slice(<span class="kw-2">&amp;</span>[<span class="number">3</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="number">4</span>]);
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">let </span>out = v.take(<span class="kw-2">&amp;</span>indices).unwrap();
<a href=#74 id=74 data-nosnippet>74</a>
<a href=#75 id=75 data-nosnippet>75</a> <span class="kw">let </span>expect: VectorRef = Arc::new(<span class="macro-nonterminal">$VectorType::from_iterator</span>(
<a href=#76 id=76 data-nosnippet>76</a> [<span class="number">3</span>, <span class="number">0</span>, <span class="number">1</span>, <span class="number">4</span>].into_iter().map(<span class="macro-nonterminal">$ValueType:</span>:<span class="macro-nonterminal">$method</span>),
<a href=#77 id=77 data-nosnippet>77</a> ));
<a href=#78 id=78 data-nosnippet>78</a> <span class="macro">assert_eq!</span>(expect, out);
<a href=#79 id=79 data-nosnippet>79</a> }};
<a href=#80 id=80 data-nosnippet>80</a> }
<a href=#81 id=81 data-nosnippet>81</a>
<a href=#82 id=82 data-nosnippet>82</a> <span class="attr">#[test]
<a href=#83 id=83 data-nosnippet>83</a> </span><span class="kw">fn </span>test_take_primitive() {
<a href=#84 id=84 data-nosnippet>84</a> <span class="comment">// nullable int32
<a href=#85 id=85 data-nosnippet>85</a> </span>check_take_primitive::&lt;<span class="kw">crate</span>::types::Int32Type&gt;(
<a href=#86 id=86 data-nosnippet>86</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">3</span>), <span class="prelude-val">Some</span>(<span class="number">4</span>), <span class="prelude-val">Some</span>(-<span class="number">5</span>)],
<a href=#87 id=87 data-nosnippet>87</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">3</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">4</span>)],
<a href=#88 id=88 data-nosnippet>88</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">4</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(-<span class="number">5</span>)],
<a href=#89 id=89 data-nosnippet>89</a> );
<a href=#90 id=90 data-nosnippet>90</a>
<a href=#91 id=91 data-nosnippet>91</a> <span class="comment">// nullable float32
<a href=#92 id=92 data-nosnippet>92</a> </span>check_take_primitive::&lt;<span class="kw">crate</span>::types::Float32Type&gt;(
<a href=#93 id=93 data-nosnippet>93</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">3.24</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">1.34</span>), <span class="prelude-val">Some</span>(<span class="number">4.13</span>), <span class="prelude-val">Some</span>(<span class="number">5.13</span>)],
<a href=#94 id=94 data-nosnippet>94</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">3</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">4</span>)],
<a href=#95 id=95 data-nosnippet>95</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">4.13</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">3.24</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">5.13</span>)],
<a href=#96 id=96 data-nosnippet>96</a> );
<a href=#97 id=97 data-nosnippet>97</a>
<a href=#98 id=98 data-nosnippet>98</a> <span class="comment">// nullable uint32
<a href=#99 id=99 data-nosnippet>99</a> </span>check_take_primitive::&lt;<span class="kw">crate</span>::types::UInt32Type&gt;(
<a href=#100 id=100 data-nosnippet>100</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">0</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">Some</span>(<span class="number">3</span>), <span class="prelude-val">Some</span>(<span class="number">4</span>)],
<a href=#101 id=101 data-nosnippet>101</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">4</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">3</span>)],
<a href=#102 id=102 data-nosnippet>102</a> <span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">4</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">2</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">3</span>)],
<a href=#103 id=103 data-nosnippet>103</a> );
<a href=#104 id=104 data-nosnippet>104</a>
<a href=#105 id=105 data-nosnippet>105</a> <span class="comment">// test date like type
<a href=#106 id=106 data-nosnippet>106</a> </span><span class="macro">take_time_like_test!</span>(DateVector, Date, new);
<a href=#107 id=107 data-nosnippet>107</a> <span class="macro">take_time_like_test!</span>(TimestampSecondVector, TimestampSecond, from_native);
<a href=#108 id=108 data-nosnippet>108</a> <span class="macro">take_time_like_test!</span>(
<a href=#109 id=109 data-nosnippet>109</a> TimestampMillisecondVector,
<a href=#110 id=110 data-nosnippet>110</a> TimestampMillisecond,
<a href=#111 id=111 data-nosnippet>111</a> from_native
<a href=#112 id=112 data-nosnippet>112</a> );
<a href=#113 id=113 data-nosnippet>113</a> <span class="macro">take_time_like_test!</span>(
<a href=#114 id=114 data-nosnippet>114</a> TimestampMicrosecondVector,
<a href=#115 id=115 data-nosnippet>115</a> TimestampMicrosecond,
<a href=#116 id=116 data-nosnippet>116</a> from_native
<a href=#117 id=117 data-nosnippet>117</a> );
<a href=#118 id=118 data-nosnippet>118</a> <span class="macro">take_time_like_test!</span>(TimestampNanosecondVector, TimestampNanosecond, from_native);
<a href=#119 id=119 data-nosnippet>119</a> }
<a href=#120 id=120 data-nosnippet>120</a>
<a href=#121 id=121 data-nosnippet>121</a> <span class="attr">#[test]
<a href=#122 id=122 data-nosnippet>122</a> #[should_panic]
<a href=#123 id=123 data-nosnippet>123</a> </span><span class="kw">fn </span>test_take_out_of_index() {
<a href=#124 id=124 data-nosnippet>124</a> <span class="kw">let </span>v = Int32Vector::from_slice([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>]);
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">let </span>indies = UInt32Vector::from_slice([<span class="number">1</span>, <span class="number">5</span>, <span class="number">6</span>]);
<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">let _ </span>= v.take(<span class="kw-2">&amp;</span>indies);
<a href=#127 id=127 data-nosnippet>127</a> }
<a href=#128 id=128 data-nosnippet>128</a>
<a href=#129 id=129 data-nosnippet>129</a> <span class="attr">#[test]
<a href=#130 id=130 data-nosnippet>130</a> </span><span class="kw">fn </span>test_take_null() {
<a href=#131 id=131 data-nosnippet>131</a> <span class="kw">let </span>v = NullVector::new(<span class="number">5</span>);
<a href=#132 id=132 data-nosnippet>132</a> <span class="kw">let </span>indices = UInt32Vector::from_slice([<span class="number">1</span>, <span class="number">3</span>, <span class="number">2</span>]);
<a href=#133 id=133 data-nosnippet>133</a> <span class="kw">let </span>out = v.take(<span class="kw-2">&amp;</span>indices).unwrap();
<a href=#134 id=134 data-nosnippet>134</a>
<a href=#135 id=135 data-nosnippet>135</a> <span class="kw">let </span>expect: VectorRef = Arc::new(NullVector::new(<span class="number">3</span>));
<a href=#136 id=136 data-nosnippet>136</a> <span class="macro">assert_eq!</span>(expect, out);
<a href=#137 id=137 data-nosnippet>137</a> }
<a href=#138 id=138 data-nosnippet>138</a>
<a href=#139 id=139 data-nosnippet>139</a> <span class="attr">#[test]
<a href=#140 id=140 data-nosnippet>140</a> </span><span class="kw">fn </span>test_take_scalar() {
<a href=#141 id=141 data-nosnippet>141</a> <span class="kw">let </span>v = StringVector::from_slice(<span class="kw-2">&amp;</span>[<span class="string">"0"</span>, <span class="string">"1"</span>, <span class="string">"2"</span>, <span class="string">"3"</span>]);
<a href=#142 id=142 data-nosnippet>142</a> <span class="kw">let </span>indices = UInt32Vector::from_slice([<span class="number">1</span>, <span class="number">3</span>, <span class="number">2</span>]);
<a href=#143 id=143 data-nosnippet>143</a> <span class="kw">let </span>out = v.take(<span class="kw-2">&amp;</span>indices).unwrap();
<a href=#144 id=144 data-nosnippet>144</a>
<a href=#145 id=145 data-nosnippet>145</a> <span class="kw">let </span>expect: VectorRef = Arc::new(StringVector::from_slice(<span class="kw-2">&amp;</span>[<span class="string">"1"</span>, <span class="string">"3"</span>, <span class="string">"2"</span>]));
<a href=#146 id=146 data-nosnippet>146</a> <span class="macro">assert_eq!</span>(expect, out);
<a href=#147 id=147 data-nosnippet>147</a> }
<a href=#148 id=148 data-nosnippet>148</a>
<a href=#149 id=149 data-nosnippet>149</a> <span class="attr">#[test]
<a href=#150 id=150 data-nosnippet>150</a> </span><span class="kw">fn </span>test_take_bool() {
<a href=#151 id=151 data-nosnippet>151</a> <span class="kw">let </span>v = BooleanVector::from_slice(<span class="kw-2">&amp;</span>[<span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>]);
<a href=#152 id=152 data-nosnippet>152</a> <span class="kw">let </span>indices = UInt32Vector::from_slice([<span class="number">1</span>, <span class="number">3</span>, <span class="number">5</span>, <span class="number">6</span>]);
<a href=#153 id=153 data-nosnippet>153</a> <span class="kw">let </span>out = v.take(<span class="kw-2">&amp;</span>indices).unwrap();
<a href=#154 id=154 data-nosnippet>154</a> <span class="kw">let </span>expected: VectorRef = Arc::new(BooleanVector::from_slice(<span class="kw-2">&amp;</span>[<span class="bool-val">true</span>, <span class="bool-val">true</span>, <span class="bool-val">false</span>, <span class="bool-val">true</span>]));
<a href=#155 id=155 data-nosnippet>155</a> <span class="macro">assert_eq!</span>(out, expected);
<a href=#156 id=156 data-nosnippet>156</a>
<a href=#157 id=157 data-nosnippet>157</a> <span class="kw">let </span>v = BooleanVector::from(<span class="macro">vec!</span>[
<a href=#158 id=158 data-nosnippet>158</a> <span class="prelude-val">Some</span>(<span class="bool-val">true</span>),
<a href=#159 id=159 data-nosnippet>159</a> <span class="prelude-val">None</span>,
<a href=#160 id=160 data-nosnippet>160</a> <span class="prelude-val">Some</span>(<span class="bool-val">false</span>),
<a href=#161 id=161 data-nosnippet>161</a> <span class="prelude-val">Some</span>(<span class="bool-val">true</span>),
<a href=#162 id=162 data-nosnippet>162</a> <span class="prelude-val">Some</span>(<span class="bool-val">false</span>),
<a href=#163 id=163 data-nosnippet>163</a> <span class="prelude-val">Some</span>(<span class="bool-val">false</span>),
<a href=#164 id=164 data-nosnippet>164</a> <span class="prelude-val">Some</span>(<span class="bool-val">true</span>),
<a href=#165 id=165 data-nosnippet>165</a> <span class="prelude-val">None</span>,
<a href=#166 id=166 data-nosnippet>166</a> ]);
<a href=#167 id=167 data-nosnippet>167</a> <span class="kw">let </span>indices = UInt32Vector::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">3</span>), <span class="prelude-val">Some</span>(<span class="number">5</span>), <span class="prelude-val">Some</span>(<span class="number">6</span>)]);
<a href=#168 id=168 data-nosnippet>168</a> <span class="kw">let </span>out = v.take(<span class="kw-2">&amp;</span>indices).unwrap();
<a href=#169 id=169 data-nosnippet>169</a> <span class="kw">let </span>expected: VectorRef = Arc::new(BooleanVector::from(<span class="macro">vec!</span>[
<a href=#170 id=170 data-nosnippet>170</a> <span class="prelude-val">None</span>,
<a href=#171 id=171 data-nosnippet>171</a> <span class="prelude-val">None</span>,
<a href=#172 id=172 data-nosnippet>172</a> <span class="prelude-val">Some</span>(<span class="bool-val">true</span>),
<a href=#173 id=173 data-nosnippet>173</a> <span class="prelude-val">Some</span>(<span class="bool-val">false</span>),
<a href=#174 id=174 data-nosnippet>174</a> <span class="prelude-val">Some</span>(<span class="bool-val">true</span>),
<a href=#175 id=175 data-nosnippet>175</a> ]));
<a href=#176 id=176 data-nosnippet>176</a> <span class="macro">assert_eq!</span>(out, expected);
<a href=#177 id=177 data-nosnippet>177</a> }
<a href=#178 id=178 data-nosnippet>178</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/primitive.rs`."><title>primitive.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>primitive.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::any::Any;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::fmt;
<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>std::sync::Arc;
<a href=#18 id=18 data-nosnippet>18</a>
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>arrow::array::{Array, ArrayBuilder, ArrayIter, ArrayRef, PrimitiveArray, PrimitiveBuilder};
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>serde_json::Value <span class="kw">as </span>JsonValue;
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>snafu::OptionExt;
<a href=#22 id=22 data-nosnippet>22</a>
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, <span class="prelude-ty">Result</span>};
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::scalars::{Scalar, ScalarRef, ScalarVector, ScalarVectorBuilder};
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::types::{
<a href=#28 id=28 data-nosnippet>28</a> Float32Type, Float64Type, Int8Type, Int16Type, Int32Type, Int64Type, LogicalPrimitiveType,
<a href=#29 id=29 data-nosnippet>29</a> UInt8Type, UInt16Type, UInt32Type, UInt64Type, WrapperType,
<a href=#30 id=30 data-nosnippet>30</a>};
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">use </span><span class="kw">crate</span>::value::{Value, ValueRef};
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{<span class="self">self</span>, MutableVector, Validity, Vector, VectorRef};
<a href=#33 id=33 data-nosnippet>33</a>
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">pub type </span>UInt8Vector = PrimitiveVector&lt;UInt8Type&gt;;
<a href=#35 id=35 data-nosnippet>35</a><span class="kw">pub type </span>UInt16Vector = PrimitiveVector&lt;UInt16Type&gt;;
<a href=#36 id=36 data-nosnippet>36</a><span class="kw">pub type </span>UInt32Vector = PrimitiveVector&lt;UInt32Type&gt;;
<a href=#37 id=37 data-nosnippet>37</a><span class="kw">pub type </span>UInt64Vector = PrimitiveVector&lt;UInt64Type&gt;;
<a href=#38 id=38 data-nosnippet>38</a>
<a href=#39 id=39 data-nosnippet>39</a><span class="kw">pub type </span>Int8Vector = PrimitiveVector&lt;Int8Type&gt;;
<a href=#40 id=40 data-nosnippet>40</a><span class="kw">pub type </span>Int16Vector = PrimitiveVector&lt;Int16Type&gt;;
<a href=#41 id=41 data-nosnippet>41</a><span class="kw">pub type </span>Int32Vector = PrimitiveVector&lt;Int32Type&gt;;
<a href=#42 id=42 data-nosnippet>42</a><span class="kw">pub type </span>Int64Vector = PrimitiveVector&lt;Int64Type&gt;;
<a href=#43 id=43 data-nosnippet>43</a>
<a href=#44 id=44 data-nosnippet>44</a><span class="kw">pub type </span>Float32Vector = PrimitiveVector&lt;Float32Type&gt;;
<a href=#45 id=45 data-nosnippet>45</a><span class="kw">pub type </span>Float64Vector = PrimitiveVector&lt;Float64Type&gt;;
<a href=#46 id=46 data-nosnippet>46</a>
<a href=#47 id=47 data-nosnippet>47</a><span class="doccomment">/// Vector for primitive data types.
<a href=#48 id=48 data-nosnippet>48</a></span><span class="kw">pub struct </span>PrimitiveVector&lt;T: LogicalPrimitiveType&gt; {
<a href=#49 id=49 data-nosnippet>49</a> array: PrimitiveArray&lt;T::ArrowPrimitive&gt;,
<a href=#50 id=50 data-nosnippet>50</a>}
<a href=#51 id=51 data-nosnippet>51</a>
<a href=#52 id=52 data-nosnippet>52</a><span class="kw">impl</span>&lt;T: LogicalPrimitiveType&gt; PrimitiveVector&lt;T&gt; {
<a href=#53 id=53 data-nosnippet>53</a> <span class="kw">pub fn </span>new(array: PrimitiveArray&lt;T::ArrowPrimitive&gt;) -&gt; <span class="self">Self </span>{
<a href=#54 id=54 data-nosnippet>54</a> <span class="self">Self </span>{ array }
<a href=#55 id=55 data-nosnippet>55</a> }
<a href=#56 id=56 data-nosnippet>56</a>
<a href=#57 id=57 data-nosnippet>57</a> <span class="kw">pub fn </span>try_from_arrow_array(array: <span class="kw">impl </span>AsRef&lt;<span class="kw">dyn </span>Array&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#58 id=58 data-nosnippet>58</a> <span class="kw">let </span>arrow_array = array
<a href=#59 id=59 data-nosnippet>59</a> .as_ref()
<a href=#60 id=60 data-nosnippet>60</a> .as_any()
<a href=#61 id=61 data-nosnippet>61</a> .downcast_ref::&lt;PrimitiveArray&lt;T::ArrowPrimitive&gt;&gt;()
<a href=#62 id=62 data-nosnippet>62</a> .with_context(|| error::ConversionSnafu {
<a href=#63 id=63 data-nosnippet>63</a> from: <span class="macro">format!</span>(<span class="string">"{:?}"</span>, array.as_ref().data_type()),
<a href=#64 id=64 data-nosnippet>64</a> })<span class="question-mark">?</span>;
<a href=#65 id=65 data-nosnippet>65</a>
<a href=#66 id=66 data-nosnippet>66</a> <span class="prelude-val">Ok</span>(<span class="self">Self</span>::new(arrow_array.clone()))
<a href=#67 id=67 data-nosnippet>67</a> }
<a href=#68 id=68 data-nosnippet>68</a>
<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">pub fn </span>from_slice&lt;P: AsRef&lt;[T::Native]&gt;&gt;(slice: P) -&gt; <span class="self">Self </span>{
<a href=#70 id=70 data-nosnippet>70</a> <span class="kw">let </span>iter = slice.as_ref().iter().copied();
<a href=#71 id=71 data-nosnippet>71</a> <span class="self">Self </span>{
<a href=#72 id=72 data-nosnippet>72</a> array: PrimitiveArray::from_iter_values(iter),
<a href=#73 id=73 data-nosnippet>73</a> }
<a href=#74 id=74 data-nosnippet>74</a> }
<a href=#75 id=75 data-nosnippet>75</a>
<a href=#76 id=76 data-nosnippet>76</a> <span class="kw">pub fn </span>from_wrapper_slice&lt;P: AsRef&lt;[T::Wrapper]&gt;&gt;(slice: P) -&gt; <span class="self">Self </span>{
<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">let </span>iter = slice.as_ref().iter().copied().map(WrapperType::into_native);
<a href=#78 id=78 data-nosnippet>78</a> <span class="self">Self </span>{
<a href=#79 id=79 data-nosnippet>79</a> array: PrimitiveArray::from_iter_values(iter),
<a href=#80 id=80 data-nosnippet>80</a> }
<a href=#81 id=81 data-nosnippet>81</a> }
<a href=#82 id=82 data-nosnippet>82</a>
<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">pub fn </span>from_vec(vector: Vec&lt;T::Native&gt;) -&gt; <span class="self">Self </span>{
<a href=#84 id=84 data-nosnippet>84</a> <span class="kw">let </span>mutable_buffer = arrow::buffer::MutableBuffer::from(vector);
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">let </span><span class="kw-2">mut </span>primitive_builder =
<a href=#86 id=86 data-nosnippet>86</a> PrimitiveBuilder::&lt;T::ArrowPrimitive&gt;::new_from_buffer(mutable_buffer, <span class="prelude-val">None</span>);
<a href=#87 id=87 data-nosnippet>87</a> <span class="kw">let </span>array = primitive_builder.finish();
<a href=#88 id=88 data-nosnippet>88</a> <span class="self">Self </span>{ array }
<a href=#89 id=89 data-nosnippet>89</a> }
<a href=#90 id=90 data-nosnippet>90</a>
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">pub fn </span>from_iter_values&lt;I: IntoIterator&lt;Item = T::Native&gt;&gt;(iter: I) -&gt; <span class="self">Self </span>{
<a href=#92 id=92 data-nosnippet>92</a> <span class="self">Self </span>{
<a href=#93 id=93 data-nosnippet>93</a> array: PrimitiveArray::from_iter_values(iter),
<a href=#94 id=94 data-nosnippet>94</a> }
<a href=#95 id=95 data-nosnippet>95</a> }
<a href=#96 id=96 data-nosnippet>96</a>
<a href=#97 id=97 data-nosnippet>97</a> <span class="kw">pub fn </span>from_values&lt;I: IntoIterator&lt;Item = T::Native&gt;&gt;(iter: I) -&gt; <span class="self">Self </span>{
<a href=#98 id=98 data-nosnippet>98</a> <span class="self">Self </span>{
<a href=#99 id=99 data-nosnippet>99</a> array: PrimitiveArray::from_iter_values(iter),
<a href=#100 id=100 data-nosnippet>100</a> }
<a href=#101 id=101 data-nosnippet>101</a> }
<a href=#102 id=102 data-nosnippet>102</a>
<a href=#103 id=103 data-nosnippet>103</a> <span class="doccomment">/// Get the inner arrow array.
<a href=#104 id=104 data-nosnippet>104</a> </span><span class="kw">pub fn </span>as_arrow(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>PrimitiveArray&lt;T::ArrowPrimitive&gt; {
<a href=#105 id=105 data-nosnippet>105</a> <span class="kw-2">&amp;</span><span class="self">self</span>.array
<a href=#106 id=106 data-nosnippet>106</a> }
<a href=#107 id=107 data-nosnippet>107</a>
<a href=#108 id=108 data-nosnippet>108</a> <span class="comment">// To distinguish with `Vector::slice()`.
<a href=#109 id=109 data-nosnippet>109</a> </span><span class="doccomment">/// Slice the vector, returning a new vector.
<a href=#110 id=110 data-nosnippet>110</a> ///
<a href=#111 id=111 data-nosnippet>111</a> /// # Panics
<a href=#112 id=112 data-nosnippet>112</a> /// This function panics if `offset + length &gt; self.len()`.
<a href=#113 id=113 data-nosnippet>113</a> </span><span class="kw">pub fn </span>get_slice(<span class="kw-2">&amp;</span><span class="self">self</span>, offset: usize, length: usize) -&gt; <span class="self">Self </span>{
<a href=#114 id=114 data-nosnippet>114</a> <span class="self">Self </span>{
<a href=#115 id=115 data-nosnippet>115</a> array: <span class="self">self</span>.array.slice(offset, length),
<a href=#116 id=116 data-nosnippet>116</a> }
<a href=#117 id=117 data-nosnippet>117</a> }
<a href=#118 id=118 data-nosnippet>118</a>}
<a href=#119 id=119 data-nosnippet>119</a>
<a href=#120 id=120 data-nosnippet>120</a><span class="kw">impl</span>&lt;T: LogicalPrimitiveType&gt; Vector <span class="kw">for </span>PrimitiveVector&lt;T&gt; {
<a href=#121 id=121 data-nosnippet>121</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#122 id=122 data-nosnippet>122</a> T::build_data_type()
<a href=#123 id=123 data-nosnippet>123</a> }
<a href=#124 id=124 data-nosnippet>124</a>
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">fn </span>vector_type_name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#126 id=126 data-nosnippet>126</a> <span class="macro">format!</span>(<span class="string">"{}Vector"</span>, T::type_name())
<a href=#127 id=127 data-nosnippet>127</a> }
<a href=#128 id=128 data-nosnippet>128</a>
<a href=#129 id=129 data-nosnippet>129</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#130 id=130 data-nosnippet>130</a> <span class="self">self
<a href=#131 id=131 data-nosnippet>131</a> </span>}
<a href=#132 id=132 data-nosnippet>132</a>
<a href=#133 id=133 data-nosnippet>133</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#134 id=134 data-nosnippet>134</a> <span class="self">self</span>.array.len()
<a href=#135 id=135 data-nosnippet>135</a> }
<a href=#136 id=136 data-nosnippet>136</a>
<a href=#137 id=137 data-nosnippet>137</a> <span class="kw">fn </span>to_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrayRef {
<a href=#138 id=138 data-nosnippet>138</a> Arc::new(<span class="self">self</span>.array.clone())
<a href=#139 id=139 data-nosnippet>139</a> }
<a href=#140 id=140 data-nosnippet>140</a>
<a href=#141 id=141 data-nosnippet>141</a> <span class="kw">fn </span>to_boxed_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Box&lt;<span class="kw">dyn </span>Array&gt; {
<a href=#142 id=142 data-nosnippet>142</a> Box::new(<span class="self">self</span>.array.clone())
<a href=#143 id=143 data-nosnippet>143</a> }
<a href=#144 id=144 data-nosnippet>144</a>
<a href=#145 id=145 data-nosnippet>145</a> <span class="kw">fn </span>validity(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Validity {
<a href=#146 id=146 data-nosnippet>146</a> <span class="macro">vectors::impl_validity_for_vector!</span>(<span class="self">self</span>.array)
<a href=#147 id=147 data-nosnippet>147</a> }
<a href=#148 id=148 data-nosnippet>148</a>
<a href=#149 id=149 data-nosnippet>149</a> <span class="kw">fn </span>memory_size(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#150 id=150 data-nosnippet>150</a> <span class="self">self</span>.array.get_buffer_memory_size()
<a href=#151 id=151 data-nosnippet>151</a> }
<a href=#152 id=152 data-nosnippet>152</a>
<a href=#153 id=153 data-nosnippet>153</a> <span class="kw">fn </span>null_count(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#154 id=154 data-nosnippet>154</a> <span class="self">self</span>.array.null_count()
<a href=#155 id=155 data-nosnippet>155</a> }
<a href=#156 id=156 data-nosnippet>156</a>
<a href=#157 id=157 data-nosnippet>157</a> <span class="kw">fn </span>is_null(<span class="kw-2">&amp;</span><span class="self">self</span>, row: usize) -&gt; bool {
<a href=#158 id=158 data-nosnippet>158</a> <span class="self">self</span>.array.is_null(row)
<a href=#159 id=159 data-nosnippet>159</a> }
<a href=#160 id=160 data-nosnippet>160</a>
<a href=#161 id=161 data-nosnippet>161</a> <span class="kw">fn </span>slice(<span class="kw-2">&amp;</span><span class="self">self</span>, offset: usize, length: usize) -&gt; VectorRef {
<a href=#162 id=162 data-nosnippet>162</a> Arc::new(<span class="self">self</span>.get_slice(offset, length))
<a href=#163 id=163 data-nosnippet>163</a> }
<a href=#164 id=164 data-nosnippet>164</a>
<a href=#165 id=165 data-nosnippet>165</a> <span class="kw">fn </span>get(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; Value {
<a href=#166 id=166 data-nosnippet>166</a> <span class="kw">if </span><span class="self">self</span>.array.is_valid(index) {
<a href=#167 id=167 data-nosnippet>167</a> <span class="comment">// Safety: The index have been checked by `is_valid()`.
<a href=#168 id=168 data-nosnippet>168</a> </span><span class="kw">let </span>wrapper = <span class="kw">unsafe </span>{ T::Wrapper::from_native(<span class="self">self</span>.array.value_unchecked(index)) };
<a href=#169 id=169 data-nosnippet>169</a> wrapper.into()
<a href=#170 id=170 data-nosnippet>170</a> } <span class="kw">else </span>{
<a href=#171 id=171 data-nosnippet>171</a> Value::Null
<a href=#172 id=172 data-nosnippet>172</a> }
<a href=#173 id=173 data-nosnippet>173</a> }
<a href=#174 id=174 data-nosnippet>174</a>
<a href=#175 id=175 data-nosnippet>175</a> <span class="kw">fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; ValueRef&lt;<span class="lifetime">'_</span>&gt; {
<a href=#176 id=176 data-nosnippet>176</a> <span class="kw">if </span><span class="self">self</span>.array.is_valid(index) {
<a href=#177 id=177 data-nosnippet>177</a> <span class="comment">// Safety: The index have been checked by `is_valid()`.
<a href=#178 id=178 data-nosnippet>178</a> </span><span class="kw">let </span>wrapper = <span class="kw">unsafe </span>{ T::Wrapper::from_native(<span class="self">self</span>.array.value_unchecked(index)) };
<a href=#179 id=179 data-nosnippet>179</a> wrapper.into()
<a href=#180 id=180 data-nosnippet>180</a> } <span class="kw">else </span>{
<a href=#181 id=181 data-nosnippet>181</a> ValueRef::Null
<a href=#182 id=182 data-nosnippet>182</a> }
<a href=#183 id=183 data-nosnippet>183</a> }
<a href=#184 id=184 data-nosnippet>184</a>}
<a href=#185 id=185 data-nosnippet>185</a>
<a href=#186 id=186 data-nosnippet>186</a><span class="kw">impl</span>&lt;T: LogicalPrimitiveType&gt; fmt::Debug <span class="kw">for </span>PrimitiveVector&lt;T&gt; {
<a href=#187 id=187 data-nosnippet>187</a> <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter) -&gt; fmt::Result {
<a href=#188 id=188 data-nosnippet>188</a> f.debug_struct(<span class="string">"PrimitiveVector"</span>)
<a href=#189 id=189 data-nosnippet>189</a> .field(<span class="string">"array"</span>, <span class="kw-2">&amp;</span><span class="self">self</span>.array)
<a href=#190 id=190 data-nosnippet>190</a> .finish()
<a href=#191 id=191 data-nosnippet>191</a> }
<a href=#192 id=192 data-nosnippet>192</a>}
<a href=#193 id=193 data-nosnippet>193</a>
<a href=#194 id=194 data-nosnippet>194</a><span class="kw">impl</span>&lt;T: LogicalPrimitiveType&gt; From&lt;PrimitiveArray&lt;T::ArrowPrimitive&gt;&gt; <span class="kw">for </span>PrimitiveVector&lt;T&gt; {
<a href=#195 id=195 data-nosnippet>195</a> <span class="kw">fn </span>from(array: PrimitiveArray&lt;T::ArrowPrimitive&gt;) -&gt; <span class="self">Self </span>{
<a href=#196 id=196 data-nosnippet>196</a> <span class="self">Self </span>{ array }
<a href=#197 id=197 data-nosnippet>197</a> }
<a href=#198 id=198 data-nosnippet>198</a>}
<a href=#199 id=199 data-nosnippet>199</a>
<a href=#200 id=200 data-nosnippet>200</a><span class="kw">impl</span>&lt;T: LogicalPrimitiveType&gt; From&lt;Vec&lt;<span class="prelude-ty">Option</span>&lt;T::Native&gt;&gt;&gt; <span class="kw">for </span>PrimitiveVector&lt;T&gt; {
<a href=#201 id=201 data-nosnippet>201</a> <span class="kw">fn </span>from(v: Vec&lt;<span class="prelude-ty">Option</span>&lt;T::Native&gt;&gt;) -&gt; <span class="self">Self </span>{
<a href=#202 id=202 data-nosnippet>202</a> <span class="self">Self </span>{
<a href=#203 id=203 data-nosnippet>203</a> array: PrimitiveArray::from_iter(v),
<a href=#204 id=204 data-nosnippet>204</a> }
<a href=#205 id=205 data-nosnippet>205</a> }
<a href=#206 id=206 data-nosnippet>206</a>}
<a href=#207 id=207 data-nosnippet>207</a>
<a href=#208 id=208 data-nosnippet>208</a><span class="kw">pub struct </span>PrimitiveIter&lt;<span class="lifetime">'a</span>, T: LogicalPrimitiveType&gt; {
<a href=#209 id=209 data-nosnippet>209</a> iter: ArrayIter&lt;<span class="kw-2">&amp;</span><span class="lifetime">'a </span>PrimitiveArray&lt;T::ArrowPrimitive&gt;&gt;,
<a href=#210 id=210 data-nosnippet>210</a>}
<a href=#211 id=211 data-nosnippet>211</a>
<a href=#212 id=212 data-nosnippet>212</a><span class="kw">impl</span>&lt;T: LogicalPrimitiveType&gt; Iterator <span class="kw">for </span>PrimitiveIter&lt;<span class="lifetime">'_</span>, T&gt; {
<a href=#213 id=213 data-nosnippet>213</a> <span class="kw">type </span>Item = <span class="prelude-ty">Option</span>&lt;T::Wrapper&gt;;
<a href=#214 id=214 data-nosnippet>214</a>
<a href=#215 id=215 data-nosnippet>215</a> <span class="kw">fn </span>next(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="prelude-ty">Option</span>&lt;T::Wrapper&gt;&gt; {
<a href=#216 id=216 data-nosnippet>216</a> <span class="self">self</span>.iter
<a href=#217 id=217 data-nosnippet>217</a> .next()
<a href=#218 id=218 data-nosnippet>218</a> .map(|item| item.map(T::Wrapper::from_native))
<a href=#219 id=219 data-nosnippet>219</a> }
<a href=#220 id=220 data-nosnippet>220</a>
<a href=#221 id=221 data-nosnippet>221</a> <span class="kw">fn </span>size_hint(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; (usize, <span class="prelude-ty">Option</span>&lt;usize&gt;) {
<a href=#222 id=222 data-nosnippet>222</a> <span class="self">self</span>.iter.size_hint()
<a href=#223 id=223 data-nosnippet>223</a> }
<a href=#224 id=224 data-nosnippet>224</a>}
<a href=#225 id=225 data-nosnippet>225</a>
<a href=#226 id=226 data-nosnippet>226</a><span class="kw">impl</span>&lt;T: LogicalPrimitiveType&gt; ScalarVector <span class="kw">for </span>PrimitiveVector&lt;T&gt; {
<a href=#227 id=227 data-nosnippet>227</a> <span class="kw">type </span>OwnedItem = T::Wrapper;
<a href=#228 id=228 data-nosnippet>228</a> <span class="kw">type </span>RefItem&lt;<span class="lifetime">'a</span>&gt; = T::Wrapper;
<a href=#229 id=229 data-nosnippet>229</a> <span class="kw">type </span>Iter&lt;<span class="lifetime">'a</span>&gt; = PrimitiveIter&lt;<span class="lifetime">'a</span>, T&gt;;
<a href=#230 id=230 data-nosnippet>230</a> <span class="kw">type </span>Builder = PrimitiveVectorBuilder&lt;T&gt;;
<a href=#231 id=231 data-nosnippet>231</a>
<a href=#232 id=232 data-nosnippet>232</a> <span class="kw">fn </span>get_data(<span class="kw-2">&amp;</span><span class="self">self</span>, idx: usize) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt; {
<a href=#233 id=233 data-nosnippet>233</a> <span class="kw">if </span><span class="self">self</span>.array.is_valid(idx) {
<a href=#234 id=234 data-nosnippet>234</a> <span class="prelude-val">Some</span>(T::Wrapper::from_native(<span class="self">self</span>.array.value(idx)))
<a href=#235 id=235 data-nosnippet>235</a> } <span class="kw">else </span>{
<a href=#236 id=236 data-nosnippet>236</a> <span class="prelude-val">None
<a href=#237 id=237 data-nosnippet>237</a> </span>}
<a href=#238 id=238 data-nosnippet>238</a> }
<a href=#239 id=239 data-nosnippet>239</a>
<a href=#240 id=240 data-nosnippet>240</a> <span class="kw">fn </span>iter_data(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::Iter&lt;<span class="lifetime">'_</span>&gt; {
<a href=#241 id=241 data-nosnippet>241</a> PrimitiveIter {
<a href=#242 id=242 data-nosnippet>242</a> iter: <span class="self">self</span>.array.iter(),
<a href=#243 id=243 data-nosnippet>243</a> }
<a href=#244 id=244 data-nosnippet>244</a> }
<a href=#245 id=245 data-nosnippet>245</a>}
<a href=#246 id=246 data-nosnippet>246</a>
<a href=#247 id=247 data-nosnippet>247</a><span class="kw">impl</span>&lt;T: LogicalPrimitiveType&gt; Serializable <span class="kw">for </span>PrimitiveVector&lt;T&gt; {
<a href=#248 id=248 data-nosnippet>248</a> <span class="kw">fn </span>serialize_to_json(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;JsonValue&gt;&gt; {
<a href=#249 id=249 data-nosnippet>249</a> <span class="kw">let </span>res = <span class="self">self
<a href=#250 id=250 data-nosnippet>250</a> </span>.iter_data()
<a href=#251 id=251 data-nosnippet>251</a> .map(|v| <span class="kw">match </span>v {
<a href=#252 id=252 data-nosnippet>252</a> <span class="prelude-val">None </span>=&gt; serde_json::Value::Null,
<a href=#253 id=253 data-nosnippet>253</a> <span class="comment">// use WrapperType's Into&lt;serde_json::Value&gt; bound instead of
<a href=#254 id=254 data-nosnippet>254</a> // serde_json::to_value to facilitate customized serialization
<a href=#255 id=255 data-nosnippet>255</a> // for WrapperType
<a href=#256 id=256 data-nosnippet>256</a> </span><span class="prelude-val">Some</span>(v) =&gt; v.into(),
<a href=#257 id=257 data-nosnippet>257</a> })
<a href=#258 id=258 data-nosnippet>258</a> .collect::&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;();
<a href=#259 id=259 data-nosnippet>259</a> <span class="prelude-val">Ok</span>(res)
<a href=#260 id=260 data-nosnippet>260</a> }
<a href=#261 id=261 data-nosnippet>261</a>}
<a href=#262 id=262 data-nosnippet>262</a>
<a href=#263 id=263 data-nosnippet>263</a><span class="kw">impl</span>&lt;T: LogicalPrimitiveType&gt; PartialEq <span class="kw">for </span>PrimitiveVector&lt;T&gt; {
<a href=#264 id=264 data-nosnippet>264</a> <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>PrimitiveVector&lt;T&gt;) -&gt; bool {
<a href=#265 id=265 data-nosnippet>265</a> <span class="self">self</span>.array == other.array
<a href=#266 id=266 data-nosnippet>266</a> }
<a href=#267 id=267 data-nosnippet>267</a>}
<a href=#268 id=268 data-nosnippet>268</a>
<a href=#269 id=269 data-nosnippet>269</a><span class="kw">pub type </span>UInt8VectorBuilder = PrimitiveVectorBuilder&lt;UInt8Type&gt;;
<a href=#270 id=270 data-nosnippet>270</a><span class="kw">pub type </span>UInt16VectorBuilder = PrimitiveVectorBuilder&lt;UInt16Type&gt;;
<a href=#271 id=271 data-nosnippet>271</a><span class="kw">pub type </span>UInt32VectorBuilder = PrimitiveVectorBuilder&lt;UInt32Type&gt;;
<a href=#272 id=272 data-nosnippet>272</a><span class="kw">pub type </span>UInt64VectorBuilder = PrimitiveVectorBuilder&lt;UInt64Type&gt;;
<a href=#273 id=273 data-nosnippet>273</a>
<a href=#274 id=274 data-nosnippet>274</a><span class="kw">pub type </span>Int8VectorBuilder = PrimitiveVectorBuilder&lt;Int8Type&gt;;
<a href=#275 id=275 data-nosnippet>275</a><span class="kw">pub type </span>Int16VectorBuilder = PrimitiveVectorBuilder&lt;Int16Type&gt;;
<a href=#276 id=276 data-nosnippet>276</a><span class="kw">pub type </span>Int32VectorBuilder = PrimitiveVectorBuilder&lt;Int32Type&gt;;
<a href=#277 id=277 data-nosnippet>277</a><span class="kw">pub type </span>Int64VectorBuilder = PrimitiveVectorBuilder&lt;Int64Type&gt;;
<a href=#278 id=278 data-nosnippet>278</a>
<a href=#279 id=279 data-nosnippet>279</a><span class="kw">pub type </span>Float32VectorBuilder = PrimitiveVectorBuilder&lt;Float32Type&gt;;
<a href=#280 id=280 data-nosnippet>280</a><span class="kw">pub type </span>Float64VectorBuilder = PrimitiveVectorBuilder&lt;Float64Type&gt;;
<a href=#281 id=281 data-nosnippet>281</a>
<a href=#282 id=282 data-nosnippet>282</a><span class="doccomment">/// Builder to build a primitive vector.
<a href=#283 id=283 data-nosnippet>283</a></span><span class="kw">pub struct </span>PrimitiveVectorBuilder&lt;T: LogicalPrimitiveType&gt; {
<a href=#284 id=284 data-nosnippet>284</a> mutable_array: PrimitiveBuilder&lt;T::ArrowPrimitive&gt;,
<a href=#285 id=285 data-nosnippet>285</a>}
<a href=#286 id=286 data-nosnippet>286</a>
<a href=#287 id=287 data-nosnippet>287</a><span class="kw">impl</span>&lt;T: LogicalPrimitiveType&gt; MutableVector <span class="kw">for </span>PrimitiveVectorBuilder&lt;T&gt; {
<a href=#288 id=288 data-nosnippet>288</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#289 id=289 data-nosnippet>289</a> T::build_data_type()
<a href=#290 id=290 data-nosnippet>290</a> }
<a href=#291 id=291 data-nosnippet>291</a>
<a href=#292 id=292 data-nosnippet>292</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#293 id=293 data-nosnippet>293</a> <span class="self">self</span>.mutable_array.len()
<a href=#294 id=294 data-nosnippet>294</a> }
<a href=#295 id=295 data-nosnippet>295</a>
<a href=#296 id=296 data-nosnippet>296</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#297 id=297 data-nosnippet>297</a> <span class="self">self
<a href=#298 id=298 data-nosnippet>298</a> </span>}
<a href=#299 id=299 data-nosnippet>299</a>
<a href=#300 id=300 data-nosnippet>300</a> <span class="kw">fn </span>as_mut_any(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span><span class="kw">dyn </span>Any {
<a href=#301 id=301 data-nosnippet>301</a> <span class="self">self
<a href=#302 id=302 data-nosnippet>302</a> </span>}
<a href=#303 id=303 data-nosnippet>303</a>
<a href=#304 id=304 data-nosnippet>304</a> <span class="kw">fn </span>to_vector(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; VectorRef {
<a href=#305 id=305 data-nosnippet>305</a> Arc::new(<span class="self">self</span>.finish())
<a href=#306 id=306 data-nosnippet>306</a> }
<a href=#307 id=307 data-nosnippet>307</a>
<a href=#308 id=308 data-nosnippet>308</a> <span class="kw">fn </span>to_vector_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; VectorRef {
<a href=#309 id=309 data-nosnippet>309</a> Arc::new(<span class="self">self</span>.finish_cloned())
<a href=#310 id=310 data-nosnippet>310</a> }
<a href=#311 id=311 data-nosnippet>311</a>
<a href=#312 id=312 data-nosnippet>312</a> <span class="kw">fn </span>try_push_value_ref(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#313 id=313 data-nosnippet>313</a> <span class="kw">let </span>primitive = T::cast_value_ref(value)<span class="question-mark">?</span>;
<a href=#314 id=314 data-nosnippet>314</a> <span class="kw">match </span>primitive {
<a href=#315 id=315 data-nosnippet>315</a> <span class="prelude-val">Some</span>(v) =&gt; <span class="self">self</span>.mutable_array.append_value(v.into_native()),
<a href=#316 id=316 data-nosnippet>316</a> <span class="prelude-val">None </span>=&gt; <span class="self">self</span>.mutable_array.append_null(),
<a href=#317 id=317 data-nosnippet>317</a> }
<a href=#318 id=318 data-nosnippet>318</a> <span class="prelude-val">Ok</span>(())
<a href=#319 id=319 data-nosnippet>319</a> }
<a href=#320 id=320 data-nosnippet>320</a>
<a href=#321 id=321 data-nosnippet>321</a> <span class="kw">fn </span>extend_slice_of(<span class="kw-2">&amp;mut </span><span class="self">self</span>, vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector, offset: usize, length: usize) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#322 id=322 data-nosnippet>322</a> <span class="kw">let </span>primitive = T::cast_vector(vector)<span class="question-mark">?</span>;
<a href=#323 id=323 data-nosnippet>323</a> <span class="comment">// Slice the underlying array to avoid creating a new Arc.
<a href=#324 id=324 data-nosnippet>324</a> </span><span class="kw">let </span>slice = primitive.get_slice(offset, length);
<a href=#325 id=325 data-nosnippet>325</a> <span class="kw">for </span>v <span class="kw">in </span>slice.iter_data() {
<a href=#326 id=326 data-nosnippet>326</a> <span class="self">self</span>.push(v);
<a href=#327 id=327 data-nosnippet>327</a> }
<a href=#328 id=328 data-nosnippet>328</a> <span class="prelude-val">Ok</span>(())
<a href=#329 id=329 data-nosnippet>329</a> }
<a href=#330 id=330 data-nosnippet>330</a>
<a href=#331 id=331 data-nosnippet>331</a> <span class="kw">fn </span>push_null(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#332 id=332 data-nosnippet>332</a> <span class="self">self</span>.mutable_array.append_null()
<a href=#333 id=333 data-nosnippet>333</a> }
<a href=#334 id=334 data-nosnippet>334</a>}
<a href=#335 id=335 data-nosnippet>335</a>
<a href=#336 id=336 data-nosnippet>336</a><span class="kw">impl</span>&lt;T&gt; ScalarVectorBuilder <span class="kw">for </span>PrimitiveVectorBuilder&lt;T&gt;
<a href=#337 id=337 data-nosnippet>337</a><span class="kw">where
<a href=#338 id=338 data-nosnippet>338</a> </span>T: LogicalPrimitiveType,
<a href=#339 id=339 data-nosnippet>339</a> T::Wrapper: Scalar&lt;VectorType = PrimitiveVector&lt;T&gt;&gt;,
<a href=#340 id=340 data-nosnippet>340</a> <span class="kw">for</span>&lt;<span class="lifetime">'a</span>&gt; T::Wrapper: ScalarRef&lt;<span class="lifetime">'a</span>, ScalarType = T::Wrapper&gt;,
<a href=#341 id=341 data-nosnippet>341</a> <span class="kw">for</span>&lt;<span class="lifetime">'a</span>&gt; T::Wrapper: Scalar&lt;RefType&lt;<span class="lifetime">'a</span>&gt; = T::Wrapper&gt;,
<a href=#342 id=342 data-nosnippet>342</a>{
<a href=#343 id=343 data-nosnippet>343</a> <span class="kw">type </span>VectorType = PrimitiveVector&lt;T&gt;;
<a href=#344 id=344 data-nosnippet>344</a>
<a href=#345 id=345 data-nosnippet>345</a> <span class="kw">fn </span>with_capacity(capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#346 id=346 data-nosnippet>346</a> <span class="self">Self </span>{
<a href=#347 id=347 data-nosnippet>347</a> mutable_array: PrimitiveBuilder::with_capacity(capacity),
<a href=#348 id=348 data-nosnippet>348</a> }
<a href=#349 id=349 data-nosnippet>349</a> }
<a href=#350 id=350 data-nosnippet>350</a>
<a href=#351 id=351 data-nosnippet>351</a> <span class="kw">fn </span>push(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="prelude-ty">Option</span>&lt;&lt;<span class="self">Self</span>::VectorType <span class="kw">as </span>ScalarVector&gt;::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt;) {
<a href=#352 id=352 data-nosnippet>352</a> <span class="self">self</span>.mutable_array
<a href=#353 id=353 data-nosnippet>353</a> .append_option(value.map(|v| v.into_native()));
<a href=#354 id=354 data-nosnippet>354</a> }
<a href=#355 id=355 data-nosnippet>355</a>
<a href=#356 id=356 data-nosnippet>356</a> <span class="kw">fn </span>finish(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#357 id=357 data-nosnippet>357</a> PrimitiveVector {
<a href=#358 id=358 data-nosnippet>358</a> array: <span class="self">self</span>.mutable_array.finish(),
<a href=#359 id=359 data-nosnippet>359</a> }
<a href=#360 id=360 data-nosnippet>360</a> }
<a href=#361 id=361 data-nosnippet>361</a>
<a href=#362 id=362 data-nosnippet>362</a> <span class="kw">fn </span>finish_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#363 id=363 data-nosnippet>363</a> PrimitiveVector {
<a href=#364 id=364 data-nosnippet>364</a> array: <span class="self">self</span>.mutable_array.finish_cloned(),
<a href=#365 id=365 data-nosnippet>365</a> }
<a href=#366 id=366 data-nosnippet>366</a> }
<a href=#367 id=367 data-nosnippet>367</a>}
<a href=#368 id=368 data-nosnippet>368</a>
<a href=#369 id=369 data-nosnippet>369</a><span class="attr">#[cfg(test)]
<a href=#370 id=370 data-nosnippet>370</a></span><span class="kw">mod </span>tests {
<a href=#371 id=371 data-nosnippet>371</a> <span class="kw">use </span>std::vec;
<a href=#372 id=372 data-nosnippet>372</a>
<a href=#373 id=373 data-nosnippet>373</a> <span class="kw">use </span>arrow::array::{
<a href=#374 id=374 data-nosnippet>374</a> Int32Array, Time32MillisecondArray, Time32SecondArray, Time64MicrosecondArray,
<a href=#375 id=375 data-nosnippet>375</a> Time64NanosecondArray,
<a href=#376 id=376 data-nosnippet>376</a> };
<a href=#377 id=377 data-nosnippet>377</a> <span class="kw">use </span>arrow::datatypes::{DataType <span class="kw">as </span>ArrowDataType, IntervalDayTime};
<a href=#378 id=378 data-nosnippet>378</a> <span class="kw">use </span>arrow_array::{
<a href=#379 id=379 data-nosnippet>379</a> DurationMicrosecondArray, DurationMillisecondArray, DurationNanosecondArray,
<a href=#380 id=380 data-nosnippet>380</a> DurationSecondArray, IntervalDayTimeArray, IntervalYearMonthArray,
<a href=#381 id=381 data-nosnippet>381</a> TimestampMicrosecondArray, TimestampMillisecondArray, TimestampNanosecondArray,
<a href=#382 id=382 data-nosnippet>382</a> TimestampSecondArray,
<a href=#383 id=383 data-nosnippet>383</a> };
<a href=#384 id=384 data-nosnippet>384</a> <span class="kw">use </span>serde_json;
<a href=#385 id=385 data-nosnippet>385</a>
<a href=#386 id=386 data-nosnippet>386</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#387 id=387 data-nosnippet>387</a> <span class="kw">use </span><span class="kw">crate</span>::data_type::DataType;
<a href=#388 id=388 data-nosnippet>388</a> <span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#389 id=389 data-nosnippet>389</a> <span class="kw">use </span><span class="kw">crate</span>::timestamp::TimestampMillisecond;
<a href=#390 id=390 data-nosnippet>390</a> <span class="kw">use </span><span class="kw">crate</span>::types::Int64Type;
<a href=#391 id=391 data-nosnippet>391</a> <span class="kw">use </span><span class="kw">crate</span>::vectors::{
<a href=#392 id=392 data-nosnippet>392</a> DurationMicrosecondVector, DurationMillisecondVector, DurationNanosecondVector,
<a href=#393 id=393 data-nosnippet>393</a> DurationSecondVector, IntervalDayTimeVector, IntervalYearMonthVector,
<a href=#394 id=394 data-nosnippet>394</a> TimeMicrosecondVector, TimeMillisecondVector, TimeNanosecondVector, TimeSecondVector,
<a href=#395 id=395 data-nosnippet>395</a> TimestampMicrosecondVector, TimestampMillisecondVector, TimestampMillisecondVectorBuilder,
<a href=#396 id=396 data-nosnippet>396</a> TimestampNanosecondVector, TimestampSecondVector,
<a href=#397 id=397 data-nosnippet>397</a> };
<a href=#398 id=398 data-nosnippet>398</a>
<a href=#399 id=399 data-nosnippet>399</a> <span class="kw">fn </span>check_vec(v: Int32Vector) {
<a href=#400 id=400 data-nosnippet>400</a> <span class="macro">assert_eq!</span>(<span class="number">4</span>, v.len());
<a href=#401 id=401 data-nosnippet>401</a> <span class="macro">assert_eq!</span>(<span class="string">"Int32Vector"</span>, v.vector_type_name());
<a href=#402 id=402 data-nosnippet>402</a> <span class="macro">assert!</span>(v.validity().is_all_valid());
<a href=#403 id=403 data-nosnippet>403</a> <span class="macro">assert!</span>(!v.only_null());
<a href=#404 id=404 data-nosnippet>404</a>
<a href=#405 id=405 data-nosnippet>405</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..<span class="number">4 </span>{
<a href=#406 id=406 data-nosnippet>406</a> <span class="macro">assert!</span>(!v.is_null(i));
<a href=#407 id=407 data-nosnippet>407</a> <span class="macro">assert_eq!</span>(Value::Int32(i <span class="kw">as </span>i32 + <span class="number">1</span>), v.get(i));
<a href=#408 id=408 data-nosnippet>408</a> <span class="macro">assert_eq!</span>(ValueRef::Int32(i <span class="kw">as </span>i32 + <span class="number">1</span>), v.get_ref(i));
<a href=#409 id=409 data-nosnippet>409</a> }
<a href=#410 id=410 data-nosnippet>410</a>
<a href=#411 id=411 data-nosnippet>411</a> <span class="kw">let </span>json_value = v.serialize_to_json().unwrap();
<a href=#412 id=412 data-nosnippet>412</a> <span class="macro">assert_eq!</span>(<span class="string">"[1,2,3,4]"</span>, serde_json::to_string(<span class="kw-2">&amp;</span>json_value).unwrap(),);
<a href=#413 id=413 data-nosnippet>413</a>
<a href=#414 id=414 data-nosnippet>414</a> <span class="kw">let </span>arrow_arr = v.to_arrow_array();
<a href=#415 id=415 data-nosnippet>415</a> <span class="macro">assert_eq!</span>(<span class="number">4</span>, arrow_arr.len());
<a href=#416 id=416 data-nosnippet>416</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>ArrowDataType::Int32, arrow_arr.data_type());
<a href=#417 id=417 data-nosnippet>417</a> }
<a href=#418 id=418 data-nosnippet>418</a>
<a href=#419 id=419 data-nosnippet>419</a> <span class="attr">#[test]
<a href=#420 id=420 data-nosnippet>420</a> </span><span class="kw">fn </span>test_from_values() {
<a href=#421 id=421 data-nosnippet>421</a> <span class="kw">let </span>v = Int32Vector::from_values(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]);
<a href=#422 id=422 data-nosnippet>422</a> check_vec(v);
<a href=#423 id=423 data-nosnippet>423</a> }
<a href=#424 id=424 data-nosnippet>424</a>
<a href=#425 id=425 data-nosnippet>425</a> <span class="attr">#[test]
<a href=#426 id=426 data-nosnippet>426</a> </span><span class="kw">fn </span>test_from_vec() {
<a href=#427 id=427 data-nosnippet>427</a> <span class="kw">let </span>v = Int32Vector::from_vec(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]);
<a href=#428 id=428 data-nosnippet>428</a> check_vec(v);
<a href=#429 id=429 data-nosnippet>429</a> }
<a href=#430 id=430 data-nosnippet>430</a>
<a href=#431 id=431 data-nosnippet>431</a> <span class="attr">#[test]
<a href=#432 id=432 data-nosnippet>432</a> </span><span class="kw">fn </span>test_from_slice() {
<a href=#433 id=433 data-nosnippet>433</a> <span class="kw">let </span>v = Int32Vector::from_slice(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]);
<a href=#434 id=434 data-nosnippet>434</a> check_vec(v);
<a href=#435 id=435 data-nosnippet>435</a> }
<a href=#436 id=436 data-nosnippet>436</a>
<a href=#437 id=437 data-nosnippet>437</a> <span class="attr">#[test]
<a href=#438 id=438 data-nosnippet>438</a> </span><span class="kw">fn </span>test_serialize_primitive_vector_with_null_to_json() {
<a href=#439 id=439 data-nosnippet>439</a> <span class="kw">let </span>input = [<span class="prelude-val">Some</span>(<span class="number">1i32</span>), <span class="prelude-val">Some</span>(<span class="number">2i32</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">4i32</span>), <span class="prelude-val">None</span>];
<a href=#440 id=440 data-nosnippet>440</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = Int32VectorBuilder::with_capacity(input.len());
<a href=#441 id=441 data-nosnippet>441</a> <span class="kw">for </span>v <span class="kw">in </span>input {
<a href=#442 id=442 data-nosnippet>442</a> builder.push(v);
<a href=#443 id=443 data-nosnippet>443</a> }
<a href=#444 id=444 data-nosnippet>444</a> <span class="kw">let </span>vector = builder.finish();
<a href=#445 id=445 data-nosnippet>445</a>
<a href=#446 id=446 data-nosnippet>446</a> <span class="kw">let </span>json_value = vector.serialize_to_json().unwrap();
<a href=#447 id=447 data-nosnippet>447</a> <span class="macro">assert_eq!</span>(
<a href=#448 id=448 data-nosnippet>448</a> <span class="string">"[1,2,null,4,null]"</span>,
<a href=#449 id=449 data-nosnippet>449</a> serde_json::to_string(<span class="kw-2">&amp;</span>json_value).unwrap(),
<a href=#450 id=450 data-nosnippet>450</a> );
<a href=#451 id=451 data-nosnippet>451</a> }
<a href=#452 id=452 data-nosnippet>452</a>
<a href=#453 id=453 data-nosnippet>453</a> <span class="attr">#[test]
<a href=#454 id=454 data-nosnippet>454</a> </span><span class="kw">fn </span>test_from_arrow_array() {
<a href=#455 id=455 data-nosnippet>455</a> <span class="kw">let </span>arrow_array = Int32Array::from(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]);
<a href=#456 id=456 data-nosnippet>456</a> <span class="kw">let </span>v = Int32Vector::from(arrow_array);
<a href=#457 id=457 data-nosnippet>457</a> check_vec(v);
<a href=#458 id=458 data-nosnippet>458</a> }
<a href=#459 id=459 data-nosnippet>459</a>
<a href=#460 id=460 data-nosnippet>460</a> <span class="attr">#[test]
<a href=#461 id=461 data-nosnippet>461</a> </span><span class="kw">fn </span>test_primitive_vector_build_get() {
<a href=#462 id=462 data-nosnippet>462</a> <span class="kw">let </span>input = [<span class="prelude-val">Some</span>(<span class="number">1i32</span>), <span class="prelude-val">Some</span>(<span class="number">2i32</span>), <span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">4i32</span>), <span class="prelude-val">None</span>];
<a href=#463 id=463 data-nosnippet>463</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = Int32VectorBuilder::with_capacity(input.len());
<a href=#464 id=464 data-nosnippet>464</a> <span class="kw">for </span>v <span class="kw">in </span>input {
<a href=#465 id=465 data-nosnippet>465</a> builder.push(v);
<a href=#466 id=466 data-nosnippet>466</a> }
<a href=#467 id=467 data-nosnippet>467</a> <span class="kw">let </span>vector = builder.finish();
<a href=#468 id=468 data-nosnippet>468</a> <span class="macro">assert_eq!</span>(input.len(), vector.len());
<a href=#469 id=469 data-nosnippet>469</a>
<a href=#470 id=470 data-nosnippet>470</a> <span class="kw">for </span>(i, v) <span class="kw">in </span>input.into_iter().enumerate() {
<a href=#471 id=471 data-nosnippet>471</a> <span class="macro">assert_eq!</span>(v, vector.get_data(i));
<a href=#472 id=472 data-nosnippet>472</a> <span class="macro">assert_eq!</span>(Value::from(v), vector.get(i));
<a href=#473 id=473 data-nosnippet>473</a> }
<a href=#474 id=474 data-nosnippet>474</a>
<a href=#475 id=475 data-nosnippet>475</a> <span class="kw">let </span>res: Vec&lt;<span class="kw">_</span>&gt; = vector.iter_data().collect();
<a href=#476 id=476 data-nosnippet>476</a> <span class="macro">assert_eq!</span>(input, <span class="kw-2">&amp;</span>res[..]);
<a href=#477 id=477 data-nosnippet>477</a> }
<a href=#478 id=478 data-nosnippet>478</a>
<a href=#479 id=479 data-nosnippet>479</a> <span class="attr">#[test]
<a href=#480 id=480 data-nosnippet>480</a> </span><span class="kw">fn </span>test_primitive_vector_validity() {
<a href=#481 id=481 data-nosnippet>481</a> <span class="kw">let </span>input = [<span class="prelude-val">Some</span>(<span class="number">1i32</span>), <span class="prelude-val">Some</span>(<span class="number">2i32</span>), <span class="prelude-val">None</span>, <span class="prelude-val">None</span>];
<a href=#482 id=482 data-nosnippet>482</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = Int32VectorBuilder::with_capacity(input.len());
<a href=#483 id=483 data-nosnippet>483</a> <span class="kw">for </span>v <span class="kw">in </span>input {
<a href=#484 id=484 data-nosnippet>484</a> builder.push(v);
<a href=#485 id=485 data-nosnippet>485</a> }
<a href=#486 id=486 data-nosnippet>486</a> <span class="kw">let </span>vector = builder.finish();
<a href=#487 id=487 data-nosnippet>487</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, vector.null_count());
<a href=#488 id=488 data-nosnippet>488</a> <span class="kw">let </span>validity = vector.validity();
<a href=#489 id=489 data-nosnippet>489</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, validity.null_count());
<a href=#490 id=490 data-nosnippet>490</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">2</span>));
<a href=#491 id=491 data-nosnippet>491</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">3</span>));
<a href=#492 id=492 data-nosnippet>492</a>
<a href=#493 id=493 data-nosnippet>493</a> <span class="kw">let </span>vector = Int32Vector::from_slice(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]);
<a href=#494 id=494 data-nosnippet>494</a> <span class="macro">assert_eq!</span>(<span class="number">0</span>, vector.null_count());
<a href=#495 id=495 data-nosnippet>495</a> <span class="macro">assert!</span>(vector.validity().is_all_valid());
<a href=#496 id=496 data-nosnippet>496</a> }
<a href=#497 id=497 data-nosnippet>497</a>
<a href=#498 id=498 data-nosnippet>498</a> <span class="attr">#[test]
<a href=#499 id=499 data-nosnippet>499</a> </span><span class="kw">fn </span>test_memory_size() {
<a href=#500 id=500 data-nosnippet>500</a> <span class="kw">let </span>v = Int32Vector::from_slice((<span class="number">0</span>..<span class="number">5</span>).collect::&lt;Vec&lt;i32&gt;&gt;());
<a href=#501 id=501 data-nosnippet>501</a> <span class="macro">assert_eq!</span>(<span class="number">20</span>, v.memory_size());
<a href=#502 id=502 data-nosnippet>502</a> <span class="kw">let </span>v = Int64Vector::from(<span class="macro">vec!</span>[<span class="prelude-val">Some</span>(<span class="number">0i64</span>), <span class="prelude-val">Some</span>(<span class="number">1i64</span>), <span class="prelude-val">Some</span>(<span class="number">2i64</span>), <span class="prelude-val">None</span>, <span class="prelude-val">None</span>]);
<a href=#503 id=503 data-nosnippet>503</a> <span class="macro">assert_eq!</span>(<span class="number">144</span>, v.memory_size());
<a href=#504 id=504 data-nosnippet>504</a> }
<a href=#505 id=505 data-nosnippet>505</a>
<a href=#506 id=506 data-nosnippet>506</a> <span class="attr">#[test]
<a href=#507 id=507 data-nosnippet>507</a> </span><span class="kw">fn </span>test_get_slice() {
<a href=#508 id=508 data-nosnippet>508</a> <span class="kw">let </span>v = Int32Vector::from_slice(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>]);
<a href=#509 id=509 data-nosnippet>509</a> <span class="kw">let </span>slice = v.get_slice(<span class="number">1</span>, <span class="number">3</span>);
<a href=#510 id=510 data-nosnippet>510</a> <span class="macro">assert_eq!</span>(v, Int32Vector::from_slice(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>]));
<a href=#511 id=511 data-nosnippet>511</a> <span class="macro">assert_eq!</span>(slice, Int32Vector::from_slice(<span class="macro">vec!</span>[<span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]));
<a href=#512 id=512 data-nosnippet>512</a> }
<a href=#513 id=513 data-nosnippet>513</a>
<a href=#514 id=514 data-nosnippet>514</a> <span class="attr">#[test]
<a href=#515 id=515 data-nosnippet>515</a> </span><span class="kw">fn </span>test_primitive_vector_builder() {
<a href=#516 id=516 data-nosnippet>516</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = Int64Type::default().create_mutable_vector(<span class="number">3</span>);
<a href=#517 id=517 data-nosnippet>517</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Int64(<span class="number">123</span>));
<a href=#518 id=518 data-nosnippet>518</a> <span class="macro">assert!</span>(builder.try_push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Int32(<span class="number">123</span>)).is_err());
<a href=#519 id=519 data-nosnippet>519</a>
<a href=#520 id=520 data-nosnippet>520</a> <span class="kw">let </span>input = Int64Vector::from_slice([<span class="number">7</span>, <span class="number">8</span>, <span class="number">9</span>]);
<a href=#521 id=521 data-nosnippet>521</a> builder.extend_slice_of(<span class="kw-2">&amp;</span>input, <span class="number">1</span>, <span class="number">2</span>).unwrap();
<a href=#522 id=522 data-nosnippet>522</a> <span class="macro">assert!</span>(
<a href=#523 id=523 data-nosnippet>523</a> builder
<a href=#524 id=524 data-nosnippet>524</a> .extend_slice_of(<span class="kw-2">&amp;</span>Int32Vector::from_slice([<span class="number">13</span>]), <span class="number">0</span>, <span class="number">1</span>)
<a href=#525 id=525 data-nosnippet>525</a> .is_err()
<a href=#526 id=526 data-nosnippet>526</a> );
<a href=#527 id=527 data-nosnippet>527</a> <span class="kw">let </span>vector = builder.to_vector();
<a href=#528 id=528 data-nosnippet>528</a>
<a href=#529 id=529 data-nosnippet>529</a> <span class="kw">let </span>expect: VectorRef = Arc::new(Int64Vector::from_slice([<span class="number">123</span>, <span class="number">8</span>, <span class="number">9</span>]));
<a href=#530 id=530 data-nosnippet>530</a> <span class="macro">assert_eq!</span>(expect, vector);
<a href=#531 id=531 data-nosnippet>531</a> }
<a href=#532 id=532 data-nosnippet>532</a>
<a href=#533 id=533 data-nosnippet>533</a> <span class="attr">#[test]
<a href=#534 id=534 data-nosnippet>534</a> </span><span class="kw">fn </span>test_from_wrapper_slice() {
<a href=#535 id=535 data-nosnippet>535</a> <span class="macro">macro_rules!</span> test_from_wrapper_slice {
<a href=#536 id=536 data-nosnippet>536</a> (<span class="macro-nonterminal">$vec</span>: ident, <span class="macro-nonterminal">$ty</span>: ident) =&gt; {
<a href=#537 id=537 data-nosnippet>537</a> <span class="kw">let </span>from_wrapper_slice = <span class="macro-nonterminal">$vec::from_wrapper_slice</span>(<span class="kw-2">&amp;</span>[
<a href=#538 id=538 data-nosnippet>538</a> <span class="macro-nonterminal">$ty::from_native</span>(<span class="macro-nonterminal">$ty::MAX</span>),
<a href=#539 id=539 data-nosnippet>539</a> <span class="macro-nonterminal">$ty::from_native</span>(<span class="macro-nonterminal">$ty::MIN</span>),
<a href=#540 id=540 data-nosnippet>540</a> ]);
<a href=#541 id=541 data-nosnippet>541</a> <span class="kw">let </span>from_slice = <span class="macro-nonterminal">$vec::from_slice</span>([<span class="macro-nonterminal">$ty::MAX</span>, <span class="macro-nonterminal">$ty::MIN</span>]);
<a href=#542 id=542 data-nosnippet>542</a> <span class="macro">assert_eq!</span>(from_wrapper_slice, from_slice);
<a href=#543 id=543 data-nosnippet>543</a> };
<a href=#544 id=544 data-nosnippet>544</a> }
<a href=#545 id=545 data-nosnippet>545</a>
<a href=#546 id=546 data-nosnippet>546</a> <span class="macro">test_from_wrapper_slice!</span>(UInt8Vector, u8);
<a href=#547 id=547 data-nosnippet>547</a> <span class="macro">test_from_wrapper_slice!</span>(Int8Vector, i8);
<a href=#548 id=548 data-nosnippet>548</a> <span class="macro">test_from_wrapper_slice!</span>(UInt16Vector, u16);
<a href=#549 id=549 data-nosnippet>549</a> <span class="macro">test_from_wrapper_slice!</span>(Int16Vector, i16);
<a href=#550 id=550 data-nosnippet>550</a> <span class="macro">test_from_wrapper_slice!</span>(UInt32Vector, u32);
<a href=#551 id=551 data-nosnippet>551</a> <span class="macro">test_from_wrapper_slice!</span>(Int32Vector, i32);
<a href=#552 id=552 data-nosnippet>552</a> <span class="macro">test_from_wrapper_slice!</span>(UInt64Vector, u64);
<a href=#553 id=553 data-nosnippet>553</a> <span class="macro">test_from_wrapper_slice!</span>(Int64Vector, i64);
<a href=#554 id=554 data-nosnippet>554</a> <span class="macro">test_from_wrapper_slice!</span>(Float32Vector, f32);
<a href=#555 id=555 data-nosnippet>555</a> <span class="macro">test_from_wrapper_slice!</span>(Float64Vector, f64);
<a href=#556 id=556 data-nosnippet>556</a> }
<a href=#557 id=557 data-nosnippet>557</a>
<a href=#558 id=558 data-nosnippet>558</a> <span class="attr">#[test]
<a href=#559 id=559 data-nosnippet>559</a> </span><span class="kw">fn </span>test_try_from_arrow_time_array() {
<a href=#560 id=560 data-nosnippet>560</a> <span class="kw">let </span>array: ArrayRef = Arc::new(Time32SecondArray::from(<span class="macro">vec!</span>[<span class="number">1i32</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#561 id=561 data-nosnippet>561</a> <span class="kw">let </span>vector = TimeSecondVector::try_from_arrow_array(array).unwrap();
<a href=#562 id=562 data-nosnippet>562</a> <span class="macro">assert_eq!</span>(TimeSecondVector::from_values(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]), vector);
<a href=#563 id=563 data-nosnippet>563</a>
<a href=#564 id=564 data-nosnippet>564</a> <span class="kw">let </span>array: ArrayRef = Arc::new(Time32MillisecondArray::from(<span class="macro">vec!</span>[<span class="number">1i32</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#565 id=565 data-nosnippet>565</a> <span class="kw">let </span>vector = TimeMillisecondVector::try_from_arrow_array(array).unwrap();
<a href=#566 id=566 data-nosnippet>566</a> <span class="macro">assert_eq!</span>(TimeMillisecondVector::from_values(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]), vector);
<a href=#567 id=567 data-nosnippet>567</a>
<a href=#568 id=568 data-nosnippet>568</a> <span class="kw">let </span>array: ArrayRef = Arc::new(Time64MicrosecondArray::from(<span class="macro">vec!</span>[<span class="number">1i64</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#569 id=569 data-nosnippet>569</a> <span class="kw">let </span>vector = TimeMicrosecondVector::try_from_arrow_array(array).unwrap();
<a href=#570 id=570 data-nosnippet>570</a> <span class="macro">assert_eq!</span>(TimeMicrosecondVector::from_values(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]), vector);
<a href=#571 id=571 data-nosnippet>571</a>
<a href=#572 id=572 data-nosnippet>572</a> <span class="kw">let </span>array: ArrayRef = Arc::new(Time64NanosecondArray::from(<span class="macro">vec!</span>[<span class="number">1i64</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#573 id=573 data-nosnippet>573</a> <span class="kw">let </span>vector = TimeNanosecondVector::try_from_arrow_array(array).unwrap();
<a href=#574 id=574 data-nosnippet>574</a> <span class="macro">assert_eq!</span>(TimeNanosecondVector::from_values(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]), vector);
<a href=#575 id=575 data-nosnippet>575</a>
<a href=#576 id=576 data-nosnippet>576</a> <span class="comment">// Test convert error
<a href=#577 id=577 data-nosnippet>577</a> </span><span class="kw">let </span>array: ArrayRef = Arc::new(Int32Array::from(<span class="macro">vec!</span>[<span class="number">1i32</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#578 id=578 data-nosnippet>578</a> <span class="macro">assert!</span>(TimeSecondVector::try_from_arrow_array(array).is_err());
<a href=#579 id=579 data-nosnippet>579</a> }
<a href=#580 id=580 data-nosnippet>580</a>
<a href=#581 id=581 data-nosnippet>581</a> <span class="attr">#[test]
<a href=#582 id=582 data-nosnippet>582</a> </span><span class="kw">fn </span>test_try_from_arrow_timestamp_array() {
<a href=#583 id=583 data-nosnippet>583</a> <span class="kw">let </span>array: ArrayRef = Arc::new(TimestampSecondArray::from(<span class="macro">vec!</span>[<span class="number">1i64</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#584 id=584 data-nosnippet>584</a> <span class="kw">let </span>vector = TimestampSecondVector::try_from_arrow_array(array).unwrap();
<a href=#585 id=585 data-nosnippet>585</a> <span class="macro">assert_eq!</span>(TimestampSecondVector::from_values(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]), vector);
<a href=#586 id=586 data-nosnippet>586</a>
<a href=#587 id=587 data-nosnippet>587</a> <span class="kw">let </span>array: ArrayRef = Arc::new(TimestampMillisecondArray::from(<span class="macro">vec!</span>[<span class="number">1i64</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#588 id=588 data-nosnippet>588</a> <span class="kw">let </span>vector = TimestampMillisecondVector::try_from_arrow_array(array).unwrap();
<a href=#589 id=589 data-nosnippet>589</a> <span class="macro">assert_eq!</span>(
<a href=#590 id=590 data-nosnippet>590</a> TimestampMillisecondVector::from_values(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]),
<a href=#591 id=591 data-nosnippet>591</a> vector
<a href=#592 id=592 data-nosnippet>592</a> );
<a href=#593 id=593 data-nosnippet>593</a>
<a href=#594 id=594 data-nosnippet>594</a> <span class="kw">let </span>array: ArrayRef = Arc::new(TimestampMicrosecondArray::from(<span class="macro">vec!</span>[<span class="number">1i64</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#595 id=595 data-nosnippet>595</a> <span class="kw">let </span>vector = TimestampMicrosecondVector::try_from_arrow_array(array).unwrap();
<a href=#596 id=596 data-nosnippet>596</a> <span class="macro">assert_eq!</span>(
<a href=#597 id=597 data-nosnippet>597</a> TimestampMicrosecondVector::from_values(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]),
<a href=#598 id=598 data-nosnippet>598</a> vector
<a href=#599 id=599 data-nosnippet>599</a> );
<a href=#600 id=600 data-nosnippet>600</a>
<a href=#601 id=601 data-nosnippet>601</a> <span class="kw">let </span>array: ArrayRef = Arc::new(TimestampNanosecondArray::from(<span class="macro">vec!</span>[<span class="number">1i64</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#602 id=602 data-nosnippet>602</a> <span class="kw">let </span>vector = TimestampNanosecondVector::try_from_arrow_array(array).unwrap();
<a href=#603 id=603 data-nosnippet>603</a> <span class="macro">assert_eq!</span>(
<a href=#604 id=604 data-nosnippet>604</a> TimestampNanosecondVector::from_values(<span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]),
<a href=#605 id=605 data-nosnippet>605</a> vector
<a href=#606 id=606 data-nosnippet>606</a> );
<a href=#607 id=607 data-nosnippet>607</a>
<a href=#608 id=608 data-nosnippet>608</a> <span class="comment">// Test convert error
<a href=#609 id=609 data-nosnippet>609</a> </span><span class="kw">let </span>array: ArrayRef = Arc::new(Int32Array::from(<span class="macro">vec!</span>[<span class="number">1i32</span>, <span class="number">2</span>, <span class="number">3</span>]));
<a href=#610 id=610 data-nosnippet>610</a> <span class="macro">assert!</span>(TimestampSecondVector::try_from_arrow_array(array).is_err());
<a href=#611 id=611 data-nosnippet>611</a> }
<a href=#612 id=612 data-nosnippet>612</a>
<a href=#613 id=613 data-nosnippet>613</a> <span class="attr">#[test]
<a href=#614 id=614 data-nosnippet>614</a> </span><span class="kw">fn </span>test_try_from_arrow_interval_array() {
<a href=#615 id=615 data-nosnippet>615</a> <span class="kw">let </span>array: ArrayRef = Arc::new(IntervalYearMonthArray::from(<span class="macro">vec!</span>[<span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>]));
<a href=#616 id=616 data-nosnippet>616</a> <span class="kw">let </span>vector = IntervalYearMonthVector::try_from_arrow_array(array).unwrap();
<a href=#617 id=617 data-nosnippet>617</a> <span class="macro">assert_eq!</span>(
<a href=#618 id=618 data-nosnippet>618</a> IntervalYearMonthVector::from_values(<span class="macro">vec!</span>[<span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>]),
<a href=#619 id=619 data-nosnippet>619</a> vector
<a href=#620 id=620 data-nosnippet>620</a> );
<a href=#621 id=621 data-nosnippet>621</a>
<a href=#622 id=622 data-nosnippet>622</a> <span class="kw">let </span>array: ArrayRef = Arc::new(IntervalDayTimeArray::from(<span class="macro">vec!</span>[
<a href=#623 id=623 data-nosnippet>623</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">1000</span>),
<a href=#624 id=624 data-nosnippet>624</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">2000</span>),
<a href=#625 id=625 data-nosnippet>625</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">3000</span>),
<a href=#626 id=626 data-nosnippet>626</a> ]));
<a href=#627 id=627 data-nosnippet>627</a> <span class="kw">let </span>vector = IntervalDayTimeVector::try_from_arrow_array(array).unwrap();
<a href=#628 id=628 data-nosnippet>628</a> <span class="macro">assert_eq!</span>(
<a href=#629 id=629 data-nosnippet>629</a> IntervalDayTimeVector::from_values(<span class="macro">vec!</span>[
<a href=#630 id=630 data-nosnippet>630</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">1000</span>),
<a href=#631 id=631 data-nosnippet>631</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">2000</span>),
<a href=#632 id=632 data-nosnippet>632</a> IntervalDayTime::new(<span class="number">1</span>, <span class="number">3000</span>),
<a href=#633 id=633 data-nosnippet>633</a> ]),
<a href=#634 id=634 data-nosnippet>634</a> vector
<a href=#635 id=635 data-nosnippet>635</a> );
<a href=#636 id=636 data-nosnippet>636</a>
<a href=#637 id=637 data-nosnippet>637</a> <span class="kw">let </span>array: ArrayRef = Arc::new(IntervalYearMonthArray::from(<span class="macro">vec!</span>[<span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>]));
<a href=#638 id=638 data-nosnippet>638</a> <span class="kw">let </span>vector = IntervalYearMonthVector::try_from_arrow_array(array).unwrap();
<a href=#639 id=639 data-nosnippet>639</a> <span class="macro">assert_eq!</span>(
<a href=#640 id=640 data-nosnippet>640</a> IntervalYearMonthVector::from_values(<span class="macro">vec!</span>[<span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>]),
<a href=#641 id=641 data-nosnippet>641</a> vector
<a href=#642 id=642 data-nosnippet>642</a> );
<a href=#643 id=643 data-nosnippet>643</a> }
<a href=#644 id=644 data-nosnippet>644</a>
<a href=#645 id=645 data-nosnippet>645</a> <span class="attr">#[test]
<a href=#646 id=646 data-nosnippet>646</a> </span><span class="kw">fn </span>test_try_from_arrow_duration_array() {
<a href=#647 id=647 data-nosnippet>647</a> <span class="kw">let </span>array: ArrayRef = Arc::new(DurationSecondArray::from(<span class="macro">vec!</span>[<span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>]));
<a href=#648 id=648 data-nosnippet>648</a> <span class="kw">let </span>vector = DurationSecondVector::try_from_arrow_array(array).unwrap();
<a href=#649 id=649 data-nosnippet>649</a> <span class="macro">assert_eq!</span>(
<a href=#650 id=650 data-nosnippet>650</a> DurationSecondVector::from_values(<span class="macro">vec!</span>[<span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>]),
<a href=#651 id=651 data-nosnippet>651</a> vector
<a href=#652 id=652 data-nosnippet>652</a> );
<a href=#653 id=653 data-nosnippet>653</a>
<a href=#654 id=654 data-nosnippet>654</a> <span class="kw">let </span>array: ArrayRef = Arc::new(DurationMillisecondArray::from(<span class="macro">vec!</span>[<span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>]));
<a href=#655 id=655 data-nosnippet>655</a> <span class="kw">let </span>vector = DurationMillisecondVector::try_from_arrow_array(array).unwrap();
<a href=#656 id=656 data-nosnippet>656</a> <span class="macro">assert_eq!</span>(
<a href=#657 id=657 data-nosnippet>657</a> DurationMillisecondVector::from_values(<span class="macro">vec!</span>[<span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>]),
<a href=#658 id=658 data-nosnippet>658</a> vector
<a href=#659 id=659 data-nosnippet>659</a> );
<a href=#660 id=660 data-nosnippet>660</a>
<a href=#661 id=661 data-nosnippet>661</a> <span class="kw">let </span>array: ArrayRef = Arc::new(DurationMicrosecondArray::from(<span class="macro">vec!</span>[<span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>]));
<a href=#662 id=662 data-nosnippet>662</a> <span class="kw">let </span>vector = DurationMicrosecondVector::try_from_arrow_array(array).unwrap();
<a href=#663 id=663 data-nosnippet>663</a> <span class="macro">assert_eq!</span>(
<a href=#664 id=664 data-nosnippet>664</a> DurationMicrosecondVector::from_values(<span class="macro">vec!</span>[<span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>]),
<a href=#665 id=665 data-nosnippet>665</a> vector
<a href=#666 id=666 data-nosnippet>666</a> );
<a href=#667 id=667 data-nosnippet>667</a>
<a href=#668 id=668 data-nosnippet>668</a> <span class="kw">let </span>array: ArrayRef = Arc::new(DurationNanosecondArray::from(<span class="macro">vec!</span>[<span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>]));
<a href=#669 id=669 data-nosnippet>669</a> <span class="kw">let </span>vector = DurationNanosecondVector::try_from_arrow_array(array).unwrap();
<a href=#670 id=670 data-nosnippet>670</a> <span class="macro">assert_eq!</span>(
<a href=#671 id=671 data-nosnippet>671</a> DurationNanosecondVector::from_values(<span class="macro">vec!</span>[<span class="number">1000</span>, <span class="number">2000</span>, <span class="number">3000</span>]),
<a href=#672 id=672 data-nosnippet>672</a> vector
<a href=#673 id=673 data-nosnippet>673</a> );
<a href=#674 id=674 data-nosnippet>674</a> }
<a href=#675 id=675 data-nosnippet>675</a>
<a href=#676 id=676 data-nosnippet>676</a> <span class="attr">#[test]
<a href=#677 id=677 data-nosnippet>677</a> </span><span class="kw">fn </span>test_primitive_vector_builder_finish_cloned() {
<a href=#678 id=678 data-nosnippet>678</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = Int64Type::default().create_mutable_vector(<span class="number">3</span>);
<a href=#679 id=679 data-nosnippet>679</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Int64(<span class="number">123</span>));
<a href=#680 id=680 data-nosnippet>680</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Int64(<span class="number">456</span>));
<a href=#681 id=681 data-nosnippet>681</a> <span class="kw">let </span>vector = builder.to_vector_cloned();
<a href=#682 id=682 data-nosnippet>682</a> <span class="macro">assert_eq!</span>(vector.len(), <span class="number">2</span>);
<a href=#683 id=683 data-nosnippet>683</a> <span class="macro">assert_eq!</span>(vector.null_count(), <span class="number">0</span>);
<a href=#684 id=684 data-nosnippet>684</a> <span class="macro">assert_eq!</span>(builder.len(), <span class="number">2</span>);
<a href=#685 id=685 data-nosnippet>685</a>
<a href=#686 id=686 data-nosnippet>686</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = TimestampMillisecondVectorBuilder::with_capacity(<span class="number">1024</span>);
<a href=#687 id=687 data-nosnippet>687</a> builder.push(<span class="prelude-val">Some</span>(TimestampMillisecond::new(<span class="number">1</span>)));
<a href=#688 id=688 data-nosnippet>688</a> builder.push(<span class="prelude-val">Some</span>(TimestampMillisecond::new(<span class="number">2</span>)));
<a href=#689 id=689 data-nosnippet>689</a> builder.push(<span class="prelude-val">Some</span>(TimestampMillisecond::new(<span class="number">3</span>)));
<a href=#690 id=690 data-nosnippet>690</a> <span class="kw">let </span>vector = builder.finish_cloned();
<a href=#691 id=691 data-nosnippet>691</a> <span class="macro">assert_eq!</span>(vector.len(), <span class="number">3</span>);
<a href=#692 id=692 data-nosnippet>692</a> <span class="macro">assert_eq!</span>(builder.len(), <span class="number">3</span>);
<a href=#693 id=693 data-nosnippet>693</a> }
<a href=#694 id=694 data-nosnippet>694</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/string.rs`."><title>string.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>string.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::any::Any;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::sync::Arc;
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>arrow::array::{Array, ArrayBuilder, ArrayIter, ArrayRef};
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>snafu::ResultExt;
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span><span class="kw">crate</span>::arrow_array::{
<a href=#22 id=22 data-nosnippet>22</a> LargeStringArray, MutableLargeStringArray, MutableStringArray, MutableStringViewArray,
<a href=#23 id=23 data-nosnippet>23</a> StringArray, StringViewArray,
<a href=#24 id=24 data-nosnippet>24</a>};
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::data_type::ConcreteDataType;
<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::error::{<span class="self">self</span>, <span class="prelude-ty">Result</span>};
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::scalars::{ScalarVector, ScalarVectorBuilder};
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::value::{Value, ValueRef};
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{<span class="self">self</span>, MutableVector, Validity, Vector, VectorRef};
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="doccomment">/// Internal representation for string arrays
<a href=#33 id=33 data-nosnippet>33</a></span><span class="attr">#[derive(Debug, PartialEq)]
<a href=#34 id=34 data-nosnippet>34</a></span><span class="kw">enum </span>StringArrayData {
<a href=#35 id=35 data-nosnippet>35</a> String(StringArray),
<a href=#36 id=36 data-nosnippet>36</a> LargeString(LargeStringArray),
<a href=#37 id=37 data-nosnippet>37</a> StringView(StringViewArray),
<a href=#38 id=38 data-nosnippet>38</a>}
<a href=#39 id=39 data-nosnippet>39</a>
<a href=#40 id=40 data-nosnippet>40</a><span class="doccomment">/// Vector of strings.
<a href=#41 id=41 data-nosnippet>41</a></span><span class="attr">#[derive(Debug, PartialEq)]
<a href=#42 id=42 data-nosnippet>42</a></span><span class="kw">pub struct </span>StringVector {
<a href=#43 id=43 data-nosnippet>43</a> array: StringArrayData,
<a href=#44 id=44 data-nosnippet>44</a>}
<a href=#45 id=45 data-nosnippet>45</a>
<a href=#46 id=46 data-nosnippet>46</a><span class="kw">impl </span>StringVector {
<a href=#47 id=47 data-nosnippet>47</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>as_arrow(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Array {
<a href=#48 id=48 data-nosnippet>48</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#49 id=49 data-nosnippet>49</a> StringArrayData::String(array) =&gt; array,
<a href=#50 id=50 data-nosnippet>50</a> StringArrayData::LargeString(array) =&gt; array,
<a href=#51 id=51 data-nosnippet>51</a> StringArrayData::StringView(array) =&gt; array,
<a href=#52 id=52 data-nosnippet>52</a> }
<a href=#53 id=53 data-nosnippet>53</a> }
<a href=#54 id=54 data-nosnippet>54</a>
<a href=#55 id=55 data-nosnippet>55</a> <span class="doccomment">/// Create a StringVector from a regular StringArray
<a href=#56 id=56 data-nosnippet>56</a> </span><span class="kw">pub fn </span>from_string_array(array: StringArray) -&gt; <span class="self">Self </span>{
<a href=#57 id=57 data-nosnippet>57</a> <span class="self">Self </span>{
<a href=#58 id=58 data-nosnippet>58</a> array: StringArrayData::String(array),
<a href=#59 id=59 data-nosnippet>59</a> }
<a href=#60 id=60 data-nosnippet>60</a> }
<a href=#61 id=61 data-nosnippet>61</a>
<a href=#62 id=62 data-nosnippet>62</a> <span class="doccomment">/// Create a StringVector from a LargeStringArray
<a href=#63 id=63 data-nosnippet>63</a> </span><span class="kw">pub fn </span>from_large_string_array(array: LargeStringArray) -&gt; <span class="self">Self </span>{
<a href=#64 id=64 data-nosnippet>64</a> <span class="self">Self </span>{
<a href=#65 id=65 data-nosnippet>65</a> array: StringArrayData::LargeString(array),
<a href=#66 id=66 data-nosnippet>66</a> }
<a href=#67 id=67 data-nosnippet>67</a> }
<a href=#68 id=68 data-nosnippet>68</a>
<a href=#69 id=69 data-nosnippet>69</a> <span class="doccomment">/// Create a StringVector from a StringViewArray
<a href=#70 id=70 data-nosnippet>70</a> </span><span class="kw">pub fn </span>from_string_view_array(array: StringViewArray) -&gt; <span class="self">Self </span>{
<a href=#71 id=71 data-nosnippet>71</a> <span class="self">Self </span>{
<a href=#72 id=72 data-nosnippet>72</a> array: StringArrayData::StringView(array),
<a href=#73 id=73 data-nosnippet>73</a> }
<a href=#74 id=74 data-nosnippet>74</a> }
<a href=#75 id=75 data-nosnippet>75</a>
<a href=#76 id=76 data-nosnippet>76</a> <span class="kw">pub fn </span>from_slice&lt;T: AsRef&lt;str&gt;&gt;(slice: <span class="kw-2">&amp;</span>[T]) -&gt; <span class="self">Self </span>{
<a href=#77 id=77 data-nosnippet>77</a> <span class="self">Self</span>::from_string_array(StringArray::from_iter(
<a href=#78 id=78 data-nosnippet>78</a> slice.iter().map(|s| <span class="prelude-val">Some</span>(s.as_ref())),
<a href=#79 id=79 data-nosnippet>79</a> ))
<a href=#80 id=80 data-nosnippet>80</a> }
<a href=#81 id=81 data-nosnippet>81</a>}
<a href=#82 id=82 data-nosnippet>82</a>
<a href=#83 id=83 data-nosnippet>83</a><span class="kw">impl </span>From&lt;StringArray&gt; <span class="kw">for </span>StringVector {
<a href=#84 id=84 data-nosnippet>84</a> <span class="kw">fn </span>from(array: StringArray) -&gt; <span class="self">Self </span>{
<a href=#85 id=85 data-nosnippet>85</a> <span class="self">Self</span>::from_string_array(array)
<a href=#86 id=86 data-nosnippet>86</a> }
<a href=#87 id=87 data-nosnippet>87</a>}
<a href=#88 id=88 data-nosnippet>88</a>
<a href=#89 id=89 data-nosnippet>89</a><span class="kw">impl </span>From&lt;LargeStringArray&gt; <span class="kw">for </span>StringVector {
<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">fn </span>from(array: LargeStringArray) -&gt; <span class="self">Self </span>{
<a href=#91 id=91 data-nosnippet>91</a> <span class="self">Self</span>::from_large_string_array(array)
<a href=#92 id=92 data-nosnippet>92</a> }
<a href=#93 id=93 data-nosnippet>93</a>}
<a href=#94 id=94 data-nosnippet>94</a>
<a href=#95 id=95 data-nosnippet>95</a><span class="kw">impl </span>From&lt;StringViewArray&gt; <span class="kw">for </span>StringVector {
<a href=#96 id=96 data-nosnippet>96</a> <span class="kw">fn </span>from(array: StringViewArray) -&gt; <span class="self">Self </span>{
<a href=#97 id=97 data-nosnippet>97</a> <span class="self">Self</span>::from_string_view_array(array)
<a href=#98 id=98 data-nosnippet>98</a> }
<a href=#99 id=99 data-nosnippet>99</a>}
<a href=#100 id=100 data-nosnippet>100</a>
<a href=#101 id=101 data-nosnippet>101</a><span class="kw">impl </span>From&lt;Vec&lt;<span class="prelude-ty">Option</span>&lt;String&gt;&gt;&gt; <span class="kw">for </span>StringVector {
<a href=#102 id=102 data-nosnippet>102</a> <span class="kw">fn </span>from(data: Vec&lt;<span class="prelude-ty">Option</span>&lt;String&gt;&gt;) -&gt; <span class="self">Self </span>{
<a href=#103 id=103 data-nosnippet>103</a> <span class="self">Self</span>::from_string_array(StringArray::from_iter(data))
<a href=#104 id=104 data-nosnippet>104</a> }
<a href=#105 id=105 data-nosnippet>105</a>}
<a href=#106 id=106 data-nosnippet>106</a>
<a href=#107 id=107 data-nosnippet>107</a><span class="kw">impl </span>From&lt;Vec&lt;<span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>str&gt;&gt;&gt; <span class="kw">for </span>StringVector {
<a href=#108 id=108 data-nosnippet>108</a> <span class="kw">fn </span>from(data: Vec&lt;<span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>str&gt;&gt;) -&gt; <span class="self">Self </span>{
<a href=#109 id=109 data-nosnippet>109</a> <span class="self">Self</span>::from_string_array(StringArray::from_iter(data))
<a href=#110 id=110 data-nosnippet>110</a> }
<a href=#111 id=111 data-nosnippet>111</a>}
<a href=#112 id=112 data-nosnippet>112</a>
<a href=#113 id=113 data-nosnippet>113</a><span class="kw">impl </span>From&lt;<span class="kw-2">&amp;</span>[<span class="prelude-ty">Option</span>&lt;String&gt;]&gt; <span class="kw">for </span>StringVector {
<a href=#114 id=114 data-nosnippet>114</a> <span class="kw">fn </span>from(data: <span class="kw-2">&amp;</span>[<span class="prelude-ty">Option</span>&lt;String&gt;]) -&gt; <span class="self">Self </span>{
<a href=#115 id=115 data-nosnippet>115</a> <span class="self">Self</span>::from_string_array(StringArray::from_iter(data))
<a href=#116 id=116 data-nosnippet>116</a> }
<a href=#117 id=117 data-nosnippet>117</a>}
<a href=#118 id=118 data-nosnippet>118</a>
<a href=#119 id=119 data-nosnippet>119</a><span class="kw">impl </span>From&lt;<span class="kw-2">&amp;</span>[<span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>str&gt;]&gt; <span class="kw">for </span>StringVector {
<a href=#120 id=120 data-nosnippet>120</a> <span class="kw">fn </span>from(data: <span class="kw-2">&amp;</span>[<span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>str&gt;]) -&gt; <span class="self">Self </span>{
<a href=#121 id=121 data-nosnippet>121</a> <span class="self">Self</span>::from_string_array(StringArray::from_iter(data))
<a href=#122 id=122 data-nosnippet>122</a> }
<a href=#123 id=123 data-nosnippet>123</a>}
<a href=#124 id=124 data-nosnippet>124</a>
<a href=#125 id=125 data-nosnippet>125</a><span class="kw">impl </span>From&lt;Vec&lt;String&gt;&gt; <span class="kw">for </span>StringVector {
<a href=#126 id=126 data-nosnippet>126</a> <span class="kw">fn </span>from(data: Vec&lt;String&gt;) -&gt; <span class="self">Self </span>{
<a href=#127 id=127 data-nosnippet>127</a> <span class="self">Self</span>::from_string_array(StringArray::from_iter(data.into_iter().map(<span class="prelude-val">Some</span>)))
<a href=#128 id=128 data-nosnippet>128</a> }
<a href=#129 id=129 data-nosnippet>129</a>}
<a href=#130 id=130 data-nosnippet>130</a>
<a href=#131 id=131 data-nosnippet>131</a><span class="kw">impl </span>From&lt;Vec&lt;<span class="kw-2">&amp;</span>str&gt;&gt; <span class="kw">for </span>StringVector {
<a href=#132 id=132 data-nosnippet>132</a> <span class="kw">fn </span>from(data: Vec&lt;<span class="kw-2">&amp;</span>str&gt;) -&gt; <span class="self">Self </span>{
<a href=#133 id=133 data-nosnippet>133</a> <span class="self">Self</span>::from_string_array(StringArray::from_iter(data.into_iter().map(<span class="prelude-val">Some</span>)))
<a href=#134 id=134 data-nosnippet>134</a> }
<a href=#135 id=135 data-nosnippet>135</a>}
<a href=#136 id=136 data-nosnippet>136</a>
<a href=#137 id=137 data-nosnippet>137</a><span class="kw">impl </span>Vector <span class="kw">for </span>StringVector {
<a href=#138 id=138 data-nosnippet>138</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#139 id=139 data-nosnippet>139</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#140 id=140 data-nosnippet>140</a> StringArrayData::String(<span class="kw">_</span>) =&gt; ConcreteDataType::string_datatype(),
<a href=#141 id=141 data-nosnippet>141</a> StringArrayData::LargeString(<span class="kw">_</span>) =&gt; ConcreteDataType::large_string_datatype(),
<a href=#142 id=142 data-nosnippet>142</a> StringArrayData::StringView(<span class="kw">_</span>) =&gt; ConcreteDataType::utf8_view_datatype(),
<a href=#143 id=143 data-nosnippet>143</a> }
<a href=#144 id=144 data-nosnippet>144</a> }
<a href=#145 id=145 data-nosnippet>145</a>
<a href=#146 id=146 data-nosnippet>146</a> <span class="kw">fn </span>vector_type_name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#147 id=147 data-nosnippet>147</a> <span class="string">"StringVector"</span>.to_string()
<a href=#148 id=148 data-nosnippet>148</a> }
<a href=#149 id=149 data-nosnippet>149</a>
<a href=#150 id=150 data-nosnippet>150</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#151 id=151 data-nosnippet>151</a> <span class="self">self
<a href=#152 id=152 data-nosnippet>152</a> </span>}
<a href=#153 id=153 data-nosnippet>153</a>
<a href=#154 id=154 data-nosnippet>154</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#155 id=155 data-nosnippet>155</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#156 id=156 data-nosnippet>156</a> StringArrayData::String(array) =&gt; array.len(),
<a href=#157 id=157 data-nosnippet>157</a> StringArrayData::LargeString(array) =&gt; array.len(),
<a href=#158 id=158 data-nosnippet>158</a> StringArrayData::StringView(array) =&gt; array.len(),
<a href=#159 id=159 data-nosnippet>159</a> }
<a href=#160 id=160 data-nosnippet>160</a> }
<a href=#161 id=161 data-nosnippet>161</a>
<a href=#162 id=162 data-nosnippet>162</a> <span class="kw">fn </span>to_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrayRef {
<a href=#163 id=163 data-nosnippet>163</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#164 id=164 data-nosnippet>164</a> StringArrayData::String(array) =&gt; Arc::new(array.clone()),
<a href=#165 id=165 data-nosnippet>165</a> StringArrayData::LargeString(array) =&gt; Arc::new(array.clone()),
<a href=#166 id=166 data-nosnippet>166</a> StringArrayData::StringView(array) =&gt; Arc::new(array.clone()),
<a href=#167 id=167 data-nosnippet>167</a> }
<a href=#168 id=168 data-nosnippet>168</a> }
<a href=#169 id=169 data-nosnippet>169</a>
<a href=#170 id=170 data-nosnippet>170</a> <span class="kw">fn </span>to_boxed_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Box&lt;<span class="kw">dyn </span>Array&gt; {
<a href=#171 id=171 data-nosnippet>171</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#172 id=172 data-nosnippet>172</a> StringArrayData::String(array) =&gt; Box::new(array.clone()),
<a href=#173 id=173 data-nosnippet>173</a> StringArrayData::LargeString(array) =&gt; Box::new(array.clone()),
<a href=#174 id=174 data-nosnippet>174</a> StringArrayData::StringView(array) =&gt; Box::new(array.clone()),
<a href=#175 id=175 data-nosnippet>175</a> }
<a href=#176 id=176 data-nosnippet>176</a> }
<a href=#177 id=177 data-nosnippet>177</a>
<a href=#178 id=178 data-nosnippet>178</a> <span class="kw">fn </span>validity(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Validity {
<a href=#179 id=179 data-nosnippet>179</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#180 id=180 data-nosnippet>180</a> StringArrayData::String(array) =&gt; <span class="macro">vectors::impl_validity_for_vector!</span>(array),
<a href=#181 id=181 data-nosnippet>181</a> StringArrayData::LargeString(array) =&gt; <span class="macro">vectors::impl_validity_for_vector!</span>(array),
<a href=#182 id=182 data-nosnippet>182</a> StringArrayData::StringView(array) =&gt; <span class="macro">vectors::impl_validity_for_vector!</span>(array),
<a href=#183 id=183 data-nosnippet>183</a> }
<a href=#184 id=184 data-nosnippet>184</a> }
<a href=#185 id=185 data-nosnippet>185</a>
<a href=#186 id=186 data-nosnippet>186</a> <span class="kw">fn </span>memory_size(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#187 id=187 data-nosnippet>187</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#188 id=188 data-nosnippet>188</a> StringArrayData::String(array) =&gt; array.get_buffer_memory_size(),
<a href=#189 id=189 data-nosnippet>189</a> StringArrayData::LargeString(array) =&gt; array.get_buffer_memory_size(),
<a href=#190 id=190 data-nosnippet>190</a> StringArrayData::StringView(array) =&gt; array.get_buffer_memory_size(),
<a href=#191 id=191 data-nosnippet>191</a> }
<a href=#192 id=192 data-nosnippet>192</a> }
<a href=#193 id=193 data-nosnippet>193</a>
<a href=#194 id=194 data-nosnippet>194</a> <span class="kw">fn </span>null_count(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#195 id=195 data-nosnippet>195</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#196 id=196 data-nosnippet>196</a> StringArrayData::String(array) =&gt; array.null_count(),
<a href=#197 id=197 data-nosnippet>197</a> StringArrayData::LargeString(array) =&gt; array.null_count(),
<a href=#198 id=198 data-nosnippet>198</a> StringArrayData::StringView(array) =&gt; array.null_count(),
<a href=#199 id=199 data-nosnippet>199</a> }
<a href=#200 id=200 data-nosnippet>200</a> }
<a href=#201 id=201 data-nosnippet>201</a>
<a href=#202 id=202 data-nosnippet>202</a> <span class="kw">fn </span>is_null(<span class="kw-2">&amp;</span><span class="self">self</span>, row: usize) -&gt; bool {
<a href=#203 id=203 data-nosnippet>203</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#204 id=204 data-nosnippet>204</a> StringArrayData::String(array) =&gt; array.is_null(row),
<a href=#205 id=205 data-nosnippet>205</a> StringArrayData::LargeString(array) =&gt; array.is_null(row),
<a href=#206 id=206 data-nosnippet>206</a> StringArrayData::StringView(array) =&gt; array.is_null(row),
<a href=#207 id=207 data-nosnippet>207</a> }
<a href=#208 id=208 data-nosnippet>208</a> }
<a href=#209 id=209 data-nosnippet>209</a>
<a href=#210 id=210 data-nosnippet>210</a> <span class="kw">fn </span>slice(<span class="kw-2">&amp;</span><span class="self">self</span>, offset: usize, length: usize) -&gt; VectorRef {
<a href=#211 id=211 data-nosnippet>211</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#212 id=212 data-nosnippet>212</a> StringArrayData::String(array) =&gt; {
<a href=#213 id=213 data-nosnippet>213</a> Arc::new(<span class="self">Self</span>::from_string_array(array.slice(offset, length)))
<a href=#214 id=214 data-nosnippet>214</a> }
<a href=#215 id=215 data-nosnippet>215</a> StringArrayData::LargeString(array) =&gt; {
<a href=#216 id=216 data-nosnippet>216</a> Arc::new(<span class="self">Self</span>::from_large_string_array(array.slice(offset, length)))
<a href=#217 id=217 data-nosnippet>217</a> }
<a href=#218 id=218 data-nosnippet>218</a> StringArrayData::StringView(array) =&gt; {
<a href=#219 id=219 data-nosnippet>219</a> Arc::new(<span class="self">Self</span>::from_string_view_array(array.slice(offset, length)))
<a href=#220 id=220 data-nosnippet>220</a> }
<a href=#221 id=221 data-nosnippet>221</a> }
<a href=#222 id=222 data-nosnippet>222</a> }
<a href=#223 id=223 data-nosnippet>223</a>
<a href=#224 id=224 data-nosnippet>224</a> <span class="kw">fn </span>get(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; Value {
<a href=#225 id=225 data-nosnippet>225</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#226 id=226 data-nosnippet>226</a> StringArrayData::String(array) =&gt; <span class="macro">vectors::impl_get_for_vector!</span>(array, index),
<a href=#227 id=227 data-nosnippet>227</a> StringArrayData::LargeString(array) =&gt; <span class="macro">vectors::impl_get_for_vector!</span>(array, index),
<a href=#228 id=228 data-nosnippet>228</a> StringArrayData::StringView(array) =&gt; <span class="macro">vectors::impl_get_for_vector!</span>(array, index),
<a href=#229 id=229 data-nosnippet>229</a> }
<a href=#230 id=230 data-nosnippet>230</a> }
<a href=#231 id=231 data-nosnippet>231</a>
<a href=#232 id=232 data-nosnippet>232</a> <span class="kw">fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; ValueRef&lt;<span class="lifetime">'_</span>&gt; {
<a href=#233 id=233 data-nosnippet>233</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#234 id=234 data-nosnippet>234</a> StringArrayData::String(array) =&gt; <span class="macro">vectors::impl_get_ref_for_vector!</span>(array, index),
<a href=#235 id=235 data-nosnippet>235</a> StringArrayData::LargeString(array) =&gt; <span class="macro">vectors::impl_get_ref_for_vector!</span>(array, index),
<a href=#236 id=236 data-nosnippet>236</a> StringArrayData::StringView(array) =&gt; <span class="macro">vectors::impl_get_ref_for_vector!</span>(array, index),
<a href=#237 id=237 data-nosnippet>237</a> }
<a href=#238 id=238 data-nosnippet>238</a> }
<a href=#239 id=239 data-nosnippet>239</a>}
<a href=#240 id=240 data-nosnippet>240</a>
<a href=#241 id=241 data-nosnippet>241</a><span class="kw">pub enum </span>StringIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#242 id=242 data-nosnippet>242</a> String(ArrayIter&lt;<span class="kw-2">&amp;</span><span class="lifetime">'a </span>StringArray&gt;),
<a href=#243 id=243 data-nosnippet>243</a> LargeString(ArrayIter&lt;<span class="kw-2">&amp;</span><span class="lifetime">'a </span>LargeStringArray&gt;),
<a href=#244 id=244 data-nosnippet>244</a> StringView(ArrayIter&lt;<span class="kw-2">&amp;</span><span class="lifetime">'a </span>StringViewArray&gt;),
<a href=#245 id=245 data-nosnippet>245</a>}
<a href=#246 id=246 data-nosnippet>246</a>
<a href=#247 id=247 data-nosnippet>247</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; Iterator <span class="kw">for </span>StringIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#248 id=248 data-nosnippet>248</a> <span class="kw">type </span>Item = <span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span><span class="lifetime">'a </span>str&gt;;
<a href=#249 id=249 data-nosnippet>249</a>
<a href=#250 id=250 data-nosnippet>250</a> <span class="kw">fn </span>next(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::Item&gt; {
<a href=#251 id=251 data-nosnippet>251</a> <span class="kw">match </span><span class="self">self </span>{
<a href=#252 id=252 data-nosnippet>252</a> StringIter::String(iter) =&gt; iter.next(),
<a href=#253 id=253 data-nosnippet>253</a> StringIter::LargeString(iter) =&gt; iter.next(),
<a href=#254 id=254 data-nosnippet>254</a> StringIter::StringView(iter) =&gt; iter.next(),
<a href=#255 id=255 data-nosnippet>255</a> }
<a href=#256 id=256 data-nosnippet>256</a> }
<a href=#257 id=257 data-nosnippet>257</a>}
<a href=#258 id=258 data-nosnippet>258</a>
<a href=#259 id=259 data-nosnippet>259</a><span class="kw">impl </span>ScalarVector <span class="kw">for </span>StringVector {
<a href=#260 id=260 data-nosnippet>260</a> <span class="kw">type </span>OwnedItem = String;
<a href=#261 id=261 data-nosnippet>261</a> <span class="kw">type </span>RefItem&lt;<span class="lifetime">'a</span>&gt; = <span class="kw-2">&amp;</span><span class="lifetime">'a </span>str;
<a href=#262 id=262 data-nosnippet>262</a> <span class="kw">type </span>Iter&lt;<span class="lifetime">'a</span>&gt; = StringIter&lt;<span class="lifetime">'a</span>&gt;;
<a href=#263 id=263 data-nosnippet>263</a> <span class="kw">type </span>Builder = StringVectorBuilder;
<a href=#264 id=264 data-nosnippet>264</a>
<a href=#265 id=265 data-nosnippet>265</a> <span class="kw">fn </span>get_data(<span class="kw-2">&amp;</span><span class="self">self</span>, idx: usize) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt; {
<a href=#266 id=266 data-nosnippet>266</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#267 id=267 data-nosnippet>267</a> StringArrayData::String(array) =&gt; {
<a href=#268 id=268 data-nosnippet>268</a> <span class="kw">if </span>array.is_valid(idx) {
<a href=#269 id=269 data-nosnippet>269</a> <span class="prelude-val">Some</span>(array.value(idx))
<a href=#270 id=270 data-nosnippet>270</a> } <span class="kw">else </span>{
<a href=#271 id=271 data-nosnippet>271</a> <span class="prelude-val">None
<a href=#272 id=272 data-nosnippet>272</a> </span>}
<a href=#273 id=273 data-nosnippet>273</a> }
<a href=#274 id=274 data-nosnippet>274</a> StringArrayData::LargeString(array) =&gt; {
<a href=#275 id=275 data-nosnippet>275</a> <span class="kw">if </span>array.is_valid(idx) {
<a href=#276 id=276 data-nosnippet>276</a> <span class="prelude-val">Some</span>(array.value(idx))
<a href=#277 id=277 data-nosnippet>277</a> } <span class="kw">else </span>{
<a href=#278 id=278 data-nosnippet>278</a> <span class="prelude-val">None
<a href=#279 id=279 data-nosnippet>279</a> </span>}
<a href=#280 id=280 data-nosnippet>280</a> }
<a href=#281 id=281 data-nosnippet>281</a> StringArrayData::StringView(array) =&gt; {
<a href=#282 id=282 data-nosnippet>282</a> <span class="kw">if </span>array.is_valid(idx) {
<a href=#283 id=283 data-nosnippet>283</a> <span class="prelude-val">Some</span>(array.value(idx))
<a href=#284 id=284 data-nosnippet>284</a> } <span class="kw">else </span>{
<a href=#285 id=285 data-nosnippet>285</a> <span class="prelude-val">None
<a href=#286 id=286 data-nosnippet>286</a> </span>}
<a href=#287 id=287 data-nosnippet>287</a> }
<a href=#288 id=288 data-nosnippet>288</a> }
<a href=#289 id=289 data-nosnippet>289</a> }
<a href=#290 id=290 data-nosnippet>290</a>
<a href=#291 id=291 data-nosnippet>291</a> <span class="kw">fn </span>iter_data(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::Iter&lt;<span class="lifetime">'_</span>&gt; {
<a href=#292 id=292 data-nosnippet>292</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.array {
<a href=#293 id=293 data-nosnippet>293</a> StringArrayData::String(array) =&gt; StringIter::String(array.iter()),
<a href=#294 id=294 data-nosnippet>294</a> StringArrayData::LargeString(array) =&gt; StringIter::LargeString(array.iter()),
<a href=#295 id=295 data-nosnippet>295</a> StringArrayData::StringView(array) =&gt; StringIter::StringView(array.iter()),
<a href=#296 id=296 data-nosnippet>296</a> }
<a href=#297 id=297 data-nosnippet>297</a> }
<a href=#298 id=298 data-nosnippet>298</a>}
<a href=#299 id=299 data-nosnippet>299</a>
<a href=#300 id=300 data-nosnippet>300</a><span class="doccomment">/// Internal representation for mutable string arrays
<a href=#301 id=301 data-nosnippet>301</a></span><span class="kw">enum </span>MutableStringArrayData {
<a href=#302 id=302 data-nosnippet>302</a> String(MutableStringArray),
<a href=#303 id=303 data-nosnippet>303</a> LargeString(MutableLargeStringArray),
<a href=#304 id=304 data-nosnippet>304</a> StringView(MutableStringViewArray),
<a href=#305 id=305 data-nosnippet>305</a>}
<a href=#306 id=306 data-nosnippet>306</a>
<a href=#307 id=307 data-nosnippet>307</a><span class="kw">pub struct </span>StringVectorBuilder {
<a href=#308 id=308 data-nosnippet>308</a> mutable_array: MutableStringArrayData,
<a href=#309 id=309 data-nosnippet>309</a>}
<a href=#310 id=310 data-nosnippet>310</a>
<a href=#311 id=311 data-nosnippet>311</a><span class="kw">impl </span>Default <span class="kw">for </span>StringVectorBuilder {
<a href=#312 id=312 data-nosnippet>312</a> <span class="kw">fn </span>default() -&gt; <span class="self">Self </span>{
<a href=#313 id=313 data-nosnippet>313</a> <span class="self">Self</span>::new()
<a href=#314 id=314 data-nosnippet>314</a> }
<a href=#315 id=315 data-nosnippet>315</a>}
<a href=#316 id=316 data-nosnippet>316</a>
<a href=#317 id=317 data-nosnippet>317</a><span class="kw">impl </span>StringVectorBuilder {
<a href=#318 id=318 data-nosnippet>318</a> <span class="doccomment">/// Create a builder for regular strings
<a href=#319 id=319 data-nosnippet>319</a> </span><span class="kw">pub fn </span>new() -&gt; <span class="self">Self </span>{
<a href=#320 id=320 data-nosnippet>320</a> <span class="self">Self </span>{
<a href=#321 id=321 data-nosnippet>321</a> mutable_array: MutableStringArrayData::String(MutableStringArray::new()),
<a href=#322 id=322 data-nosnippet>322</a> }
<a href=#323 id=323 data-nosnippet>323</a> }
<a href=#324 id=324 data-nosnippet>324</a>
<a href=#325 id=325 data-nosnippet>325</a> <span class="doccomment">/// Create a builder for large strings
<a href=#326 id=326 data-nosnippet>326</a> </span><span class="kw">pub fn </span>new_large() -&gt; <span class="self">Self </span>{
<a href=#327 id=327 data-nosnippet>327</a> <span class="self">Self </span>{
<a href=#328 id=328 data-nosnippet>328</a> mutable_array: MutableStringArrayData::LargeString(MutableLargeStringArray::new()),
<a href=#329 id=329 data-nosnippet>329</a> }
<a href=#330 id=330 data-nosnippet>330</a> }
<a href=#331 id=331 data-nosnippet>331</a>
<a href=#332 id=332 data-nosnippet>332</a> <span class="doccomment">/// Create a builder for view strings
<a href=#333 id=333 data-nosnippet>333</a> </span><span class="kw">pub fn </span>new_view() -&gt; <span class="self">Self </span>{
<a href=#334 id=334 data-nosnippet>334</a> <span class="self">Self </span>{
<a href=#335 id=335 data-nosnippet>335</a> mutable_array: MutableStringArrayData::StringView(MutableStringViewArray::new()),
<a href=#336 id=336 data-nosnippet>336</a> }
<a href=#337 id=337 data-nosnippet>337</a> }
<a href=#338 id=338 data-nosnippet>338</a>
<a href=#339 id=339 data-nosnippet>339</a> <span class="doccomment">/// Create a builder for regular strings with capacity
<a href=#340 id=340 data-nosnippet>340</a> </span><span class="kw">pub fn </span>with_string_capacity(capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#341 id=341 data-nosnippet>341</a> <span class="self">Self </span>{
<a href=#342 id=342 data-nosnippet>342</a> mutable_array: MutableStringArrayData::String(MutableStringArray::with_capacity(
<a href=#343 id=343 data-nosnippet>343</a> capacity, <span class="number">0</span>,
<a href=#344 id=344 data-nosnippet>344</a> )),
<a href=#345 id=345 data-nosnippet>345</a> }
<a href=#346 id=346 data-nosnippet>346</a> }
<a href=#347 id=347 data-nosnippet>347</a>
<a href=#348 id=348 data-nosnippet>348</a> <span class="doccomment">/// Create a builder for large strings with capacity
<a href=#349 id=349 data-nosnippet>349</a> </span><span class="kw">pub fn </span>with_large_capacity(capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#350 id=350 data-nosnippet>350</a> <span class="self">Self </span>{
<a href=#351 id=351 data-nosnippet>351</a> mutable_array: MutableStringArrayData::LargeString(
<a href=#352 id=352 data-nosnippet>352</a> MutableLargeStringArray::with_capacity(capacity, <span class="number">0</span>),
<a href=#353 id=353 data-nosnippet>353</a> ),
<a href=#354 id=354 data-nosnippet>354</a> }
<a href=#355 id=355 data-nosnippet>355</a> }
<a href=#356 id=356 data-nosnippet>356</a>
<a href=#357 id=357 data-nosnippet>357</a> <span class="doccomment">/// Create a builder for view strings with capacity
<a href=#358 id=358 data-nosnippet>358</a> </span><span class="kw">pub fn </span>with_view_capacity(capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#359 id=359 data-nosnippet>359</a> <span class="self">Self </span>{
<a href=#360 id=360 data-nosnippet>360</a> mutable_array: MutableStringArrayData::StringView(
<a href=#361 id=361 data-nosnippet>361</a> MutableStringViewArray::with_capacity(capacity),
<a href=#362 id=362 data-nosnippet>362</a> ),
<a href=#363 id=363 data-nosnippet>363</a> }
<a href=#364 id=364 data-nosnippet>364</a> }
<a href=#365 id=365 data-nosnippet>365</a>}
<a href=#366 id=366 data-nosnippet>366</a>
<a href=#367 id=367 data-nosnippet>367</a><span class="kw">impl </span>MutableVector <span class="kw">for </span>StringVectorBuilder {
<a href=#368 id=368 data-nosnippet>368</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#369 id=369 data-nosnippet>369</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.mutable_array {
<a href=#370 id=370 data-nosnippet>370</a> MutableStringArrayData::String(<span class="kw">_</span>) =&gt; ConcreteDataType::string_datatype(),
<a href=#371 id=371 data-nosnippet>371</a> MutableStringArrayData::LargeString(<span class="kw">_</span>) =&gt; ConcreteDataType::large_string_datatype(),
<a href=#372 id=372 data-nosnippet>372</a> MutableStringArrayData::StringView(<span class="kw">_</span>) =&gt; ConcreteDataType::utf8_view_datatype(),
<a href=#373 id=373 data-nosnippet>373</a> }
<a href=#374 id=374 data-nosnippet>374</a> }
<a href=#375 id=375 data-nosnippet>375</a>
<a href=#376 id=376 data-nosnippet>376</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#377 id=377 data-nosnippet>377</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.mutable_array {
<a href=#378 id=378 data-nosnippet>378</a> MutableStringArrayData::String(array) =&gt; array.len(),
<a href=#379 id=379 data-nosnippet>379</a> MutableStringArrayData::LargeString(array) =&gt; array.len(),
<a href=#380 id=380 data-nosnippet>380</a> MutableStringArrayData::StringView(array) =&gt; array.len(),
<a href=#381 id=381 data-nosnippet>381</a> }
<a href=#382 id=382 data-nosnippet>382</a> }
<a href=#383 id=383 data-nosnippet>383</a>
<a href=#384 id=384 data-nosnippet>384</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#385 id=385 data-nosnippet>385</a> <span class="self">self
<a href=#386 id=386 data-nosnippet>386</a> </span>}
<a href=#387 id=387 data-nosnippet>387</a>
<a href=#388 id=388 data-nosnippet>388</a> <span class="kw">fn </span>as_mut_any(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span><span class="kw">dyn </span>Any {
<a href=#389 id=389 data-nosnippet>389</a> <span class="self">self
<a href=#390 id=390 data-nosnippet>390</a> </span>}
<a href=#391 id=391 data-nosnippet>391</a>
<a href=#392 id=392 data-nosnippet>392</a> <span class="kw">fn </span>to_vector(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; VectorRef {
<a href=#393 id=393 data-nosnippet>393</a> Arc::new(<span class="self">self</span>.finish())
<a href=#394 id=394 data-nosnippet>394</a> }
<a href=#395 id=395 data-nosnippet>395</a>
<a href=#396 id=396 data-nosnippet>396</a> <span class="kw">fn </span>to_vector_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; VectorRef {
<a href=#397 id=397 data-nosnippet>397</a> Arc::new(<span class="self">self</span>.finish_cloned())
<a href=#398 id=398 data-nosnippet>398</a> }
<a href=#399 id=399 data-nosnippet>399</a> <span class="kw">fn </span>try_push_value_ref(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#400 id=400 data-nosnippet>400</a> <span class="kw">match </span>value.try_into_string()<span class="question-mark">? </span>{
<a href=#401 id=401 data-nosnippet>401</a> <span class="prelude-val">Some</span>(v) =&gt; <span class="kw">match </span><span class="kw-2">&amp;mut </span><span class="self">self</span>.mutable_array {
<a href=#402 id=402 data-nosnippet>402</a> MutableStringArrayData::String(array) =&gt; array.append_value(v),
<a href=#403 id=403 data-nosnippet>403</a> MutableStringArrayData::LargeString(array) =&gt; array.append_value(v),
<a href=#404 id=404 data-nosnippet>404</a> MutableStringArrayData::StringView(array) =&gt; array.append_value(v),
<a href=#405 id=405 data-nosnippet>405</a> },
<a href=#406 id=406 data-nosnippet>406</a> <span class="prelude-val">None </span>=&gt; <span class="kw">match </span><span class="kw-2">&amp;mut </span><span class="self">self</span>.mutable_array {
<a href=#407 id=407 data-nosnippet>407</a> MutableStringArrayData::String(array) =&gt; array.append_null(),
<a href=#408 id=408 data-nosnippet>408</a> MutableStringArrayData::LargeString(array) =&gt; array.append_null(),
<a href=#409 id=409 data-nosnippet>409</a> MutableStringArrayData::StringView(array) =&gt; array.append_null(),
<a href=#410 id=410 data-nosnippet>410</a> },
<a href=#411 id=411 data-nosnippet>411</a> }
<a href=#412 id=412 data-nosnippet>412</a> <span class="prelude-val">Ok</span>(())
<a href=#413 id=413 data-nosnippet>413</a> }
<a href=#414 id=414 data-nosnippet>414</a>
<a href=#415 id=415 data-nosnippet>415</a> <span class="kw">fn </span>extend_slice_of(<span class="kw-2">&amp;mut </span><span class="self">self</span>, vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector, offset: usize, length: usize) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#416 id=416 data-nosnippet>416</a> <span class="macro">vectors::impl_extend_for_builder!</span>(<span class="self">self</span>, vector, StringVector, offset, length)
<a href=#417 id=417 data-nosnippet>417</a> }
<a href=#418 id=418 data-nosnippet>418</a>
<a href=#419 id=419 data-nosnippet>419</a> <span class="kw">fn </span>push_null(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#420 id=420 data-nosnippet>420</a> <span class="kw">match </span><span class="kw-2">&amp;mut </span><span class="self">self</span>.mutable_array {
<a href=#421 id=421 data-nosnippet>421</a> MutableStringArrayData::String(array) =&gt; array.append_null(),
<a href=#422 id=422 data-nosnippet>422</a> MutableStringArrayData::LargeString(array) =&gt; array.append_null(),
<a href=#423 id=423 data-nosnippet>423</a> MutableStringArrayData::StringView(array) =&gt; array.append_null(),
<a href=#424 id=424 data-nosnippet>424</a> }
<a href=#425 id=425 data-nosnippet>425</a> }
<a href=#426 id=426 data-nosnippet>426</a>}
<a href=#427 id=427 data-nosnippet>427</a>
<a href=#428 id=428 data-nosnippet>428</a><span class="kw">impl </span>ScalarVectorBuilder <span class="kw">for </span>StringVectorBuilder {
<a href=#429 id=429 data-nosnippet>429</a> <span class="kw">type </span>VectorType = StringVector;
<a href=#430 id=430 data-nosnippet>430</a>
<a href=#431 id=431 data-nosnippet>431</a> <span class="kw">fn </span>with_capacity(capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#432 id=432 data-nosnippet>432</a> <span class="self">Self </span>{
<a href=#433 id=433 data-nosnippet>433</a> mutable_array: MutableStringArrayData::String(MutableStringArray::with_capacity(
<a href=#434 id=434 data-nosnippet>434</a> capacity, <span class="number">0</span>,
<a href=#435 id=435 data-nosnippet>435</a> )),
<a href=#436 id=436 data-nosnippet>436</a> }
<a href=#437 id=437 data-nosnippet>437</a> }
<a href=#438 id=438 data-nosnippet>438</a>
<a href=#439 id=439 data-nosnippet>439</a> <span class="kw">fn </span>push(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="prelude-ty">Option</span>&lt;&lt;<span class="self">Self</span>::VectorType <span class="kw">as </span>ScalarVector&gt;::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt;) {
<a href=#440 id=440 data-nosnippet>440</a> <span class="kw">match </span>value {
<a href=#441 id=441 data-nosnippet>441</a> <span class="prelude-val">Some</span>(v) =&gt; <span class="kw">match </span><span class="kw-2">&amp;mut </span><span class="self">self</span>.mutable_array {
<a href=#442 id=442 data-nosnippet>442</a> MutableStringArrayData::String(array) =&gt; array.append_value(v),
<a href=#443 id=443 data-nosnippet>443</a> MutableStringArrayData::LargeString(array) =&gt; array.append_value(v),
<a href=#444 id=444 data-nosnippet>444</a> MutableStringArrayData::StringView(array) =&gt; array.append_value(v),
<a href=#445 id=445 data-nosnippet>445</a> },
<a href=#446 id=446 data-nosnippet>446</a> <span class="prelude-val">None </span>=&gt; <span class="kw">match </span><span class="kw-2">&amp;mut </span><span class="self">self</span>.mutable_array {
<a href=#447 id=447 data-nosnippet>447</a> MutableStringArrayData::String(array) =&gt; array.append_null(),
<a href=#448 id=448 data-nosnippet>448</a> MutableStringArrayData::LargeString(array) =&gt; array.append_null(),
<a href=#449 id=449 data-nosnippet>449</a> MutableStringArrayData::StringView(array) =&gt; array.append_null(),
<a href=#450 id=450 data-nosnippet>450</a> },
<a href=#451 id=451 data-nosnippet>451</a> }
<a href=#452 id=452 data-nosnippet>452</a> }
<a href=#453 id=453 data-nosnippet>453</a>
<a href=#454 id=454 data-nosnippet>454</a> <span class="kw">fn </span>finish(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#455 id=455 data-nosnippet>455</a> <span class="kw">match </span><span class="kw-2">&amp;mut </span><span class="self">self</span>.mutable_array {
<a href=#456 id=456 data-nosnippet>456</a> MutableStringArrayData::String(array) =&gt; {
<a href=#457 id=457 data-nosnippet>457</a> StringVector::from_string_array(array.finish())
<a href=#458 id=458 data-nosnippet>458</a> }
<a href=#459 id=459 data-nosnippet>459</a> MutableStringArrayData::LargeString(array) =&gt; {
<a href=#460 id=460 data-nosnippet>460</a> StringVector::from_large_string_array(array.finish())
<a href=#461 id=461 data-nosnippet>461</a> }
<a href=#462 id=462 data-nosnippet>462</a> MutableStringArrayData::StringView(array) =&gt; {
<a href=#463 id=463 data-nosnippet>463</a> StringVector::from_string_view_array(array.finish())
<a href=#464 id=464 data-nosnippet>464</a> }
<a href=#465 id=465 data-nosnippet>465</a> }
<a href=#466 id=466 data-nosnippet>466</a> }
<a href=#467 id=467 data-nosnippet>467</a>
<a href=#468 id=468 data-nosnippet>468</a> <span class="kw">fn </span>finish_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#469 id=469 data-nosnippet>469</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.mutable_array {
<a href=#470 id=470 data-nosnippet>470</a> MutableStringArrayData::String(array) =&gt; {
<a href=#471 id=471 data-nosnippet>471</a> StringVector::from_string_array(array.finish_cloned())
<a href=#472 id=472 data-nosnippet>472</a> }
<a href=#473 id=473 data-nosnippet>473</a> MutableStringArrayData::LargeString(array) =&gt; {
<a href=#474 id=474 data-nosnippet>474</a> StringVector::from_large_string_array(array.finish_cloned())
<a href=#475 id=475 data-nosnippet>475</a> }
<a href=#476 id=476 data-nosnippet>476</a> MutableStringArrayData::StringView(array) =&gt; {
<a href=#477 id=477 data-nosnippet>477</a> StringVector::from_string_view_array(array.finish_cloned())
<a href=#478 id=478 data-nosnippet>478</a> }
<a href=#479 id=479 data-nosnippet>479</a> }
<a href=#480 id=480 data-nosnippet>480</a> }
<a href=#481 id=481 data-nosnippet>481</a>}
<a href=#482 id=482 data-nosnippet>482</a>
<a href=#483 id=483 data-nosnippet>483</a><span class="kw">impl </span>Serializable <span class="kw">for </span>StringVector {
<a href=#484 id=484 data-nosnippet>484</a> <span class="kw">fn </span>serialize_to_json(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;serde_json::Value&gt;&gt; {
<a href=#485 id=485 data-nosnippet>485</a> <span class="self">self</span>.iter_data()
<a href=#486 id=486 data-nosnippet>486</a> .map(serde_json::to_value)
<a href=#487 id=487 data-nosnippet>487</a> .collect::&lt;serde_json::Result&lt;<span class="kw">_</span>&gt;&gt;()
<a href=#488 id=488 data-nosnippet>488</a> .context(error::SerializeSnafu)
<a href=#489 id=489 data-nosnippet>489</a> }
<a href=#490 id=490 data-nosnippet>490</a>}
<a href=#491 id=491 data-nosnippet>491</a>
<a href=#492 id=492 data-nosnippet>492</a><span class="kw">impl </span>StringVector {
<a href=#493 id=493 data-nosnippet>493</a> <span class="kw">pub fn </span>try_from_arrow_array(
<a href=#494 id=494 data-nosnippet>494</a> array: <span class="kw">impl </span>AsRef&lt;<span class="kw">dyn </span>Array&gt;,
<a href=#495 id=495 data-nosnippet>495</a> ) -&gt; <span class="kw">crate</span>::error::Result&lt;StringVector&gt; {
<a href=#496 id=496 data-nosnippet>496</a> <span class="kw">let </span>array = array.as_ref();
<a href=#497 id=497 data-nosnippet>497</a>
<a href=#498 id=498 data-nosnippet>498</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(string_array) = array.as_any().downcast_ref::&lt;StringArray&gt;() {
<a href=#499 id=499 data-nosnippet>499</a> <span class="prelude-val">Ok</span>(StringVector::from_string_array(string_array.clone()))
<a href=#500 id=500 data-nosnippet>500</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(large_string_array) = array.as_any().downcast_ref::&lt;LargeStringArray&gt;() {
<a href=#501 id=501 data-nosnippet>501</a> <span class="prelude-val">Ok</span>(StringVector::from_large_string_array(
<a href=#502 id=502 data-nosnippet>502</a> large_string_array.clone(),
<a href=#503 id=503 data-nosnippet>503</a> ))
<a href=#504 id=504 data-nosnippet>504</a> } <span class="kw">else if let </span><span class="prelude-val">Some</span>(string_view_array) = array.as_any().downcast_ref::&lt;StringViewArray&gt;() {
<a href=#505 id=505 data-nosnippet>505</a> <span class="prelude-val">Ok</span>(StringVector::from_string_view_array(
<a href=#506 id=506 data-nosnippet>506</a> string_view_array.clone(),
<a href=#507 id=507 data-nosnippet>507</a> ))
<a href=#508 id=508 data-nosnippet>508</a> } <span class="kw">else </span>{
<a href=#509 id=509 data-nosnippet>509</a> <span class="prelude-val">Err</span>(<span class="kw">crate</span>::error::UnsupportedArrowTypeSnafu {
<a href=#510 id=510 data-nosnippet>510</a> arrow_type: array.data_type().clone(),
<a href=#511 id=511 data-nosnippet>511</a> }
<a href=#512 id=512 data-nosnippet>512</a> .build())
<a href=#513 id=513 data-nosnippet>513</a> }
<a href=#514 id=514 data-nosnippet>514</a> }
<a href=#515 id=515 data-nosnippet>515</a>}
<a href=#516 id=516 data-nosnippet>516</a>
<a href=#517 id=517 data-nosnippet>517</a><span class="attr">#[cfg(test)]
<a href=#518 id=518 data-nosnippet>518</a></span><span class="kw">mod </span>tests {
<a href=#519 id=519 data-nosnippet>519</a>
<a href=#520 id=520 data-nosnippet>520</a> <span class="kw">use </span>std::vec;
<a href=#521 id=521 data-nosnippet>521</a>
<a href=#522 id=522 data-nosnippet>522</a> <span class="kw">use </span>arrow::datatypes::DataType;
<a href=#523 id=523 data-nosnippet>523</a>
<a href=#524 id=524 data-nosnippet>524</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#525 id=525 data-nosnippet>525</a>
<a href=#526 id=526 data-nosnippet>526</a> <span class="attr">#[test]
<a href=#527 id=527 data-nosnippet>527</a> </span><span class="kw">fn </span>test_string_vector_build_get() {
<a href=#528 id=528 data-nosnippet>528</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = StringVectorBuilder::with_capacity(<span class="number">4</span>);
<a href=#529 id=529 data-nosnippet>529</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">"hello"</span>));
<a href=#530 id=530 data-nosnippet>530</a> builder.push(<span class="prelude-val">None</span>);
<a href=#531 id=531 data-nosnippet>531</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">"world"</span>));
<a href=#532 id=532 data-nosnippet>532</a> <span class="kw">let </span>vector = builder.finish();
<a href=#533 id=533 data-nosnippet>533</a>
<a href=#534 id=534 data-nosnippet>534</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="string">"hello"</span>), vector.get_data(<span class="number">0</span>));
<a href=#535 id=535 data-nosnippet>535</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, vector.get_data(<span class="number">1</span>));
<a href=#536 id=536 data-nosnippet>536</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="string">"world"</span>), vector.get_data(<span class="number">2</span>));
<a href=#537 id=537 data-nosnippet>537</a>
<a href=#538 id=538 data-nosnippet>538</a> <span class="comment">// Get out of bound
<a href=#539 id=539 data-nosnippet>539</a> </span><span class="macro">assert!</span>(vector.try_get(<span class="number">3</span>).is_err());
<a href=#540 id=540 data-nosnippet>540</a>
<a href=#541 id=541 data-nosnippet>541</a> <span class="macro">assert_eq!</span>(Value::String(<span class="string">"hello"</span>.into()), vector.get(<span class="number">0</span>));
<a href=#542 id=542 data-nosnippet>542</a> <span class="macro">assert_eq!</span>(Value::Null, vector.get(<span class="number">1</span>));
<a href=#543 id=543 data-nosnippet>543</a> <span class="macro">assert_eq!</span>(Value::String(<span class="string">"world"</span>.into()), vector.get(<span class="number">2</span>));
<a href=#544 id=544 data-nosnippet>544</a>
<a href=#545 id=545 data-nosnippet>545</a> <span class="kw">let </span><span class="kw-2">mut </span>iter = vector.iter_data();
<a href=#546 id=546 data-nosnippet>546</a> <span class="macro">assert_eq!</span>(<span class="string">"hello"</span>, iter.next().unwrap().unwrap());
<a href=#547 id=547 data-nosnippet>547</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, iter.next().unwrap());
<a href=#548 id=548 data-nosnippet>548</a> <span class="macro">assert_eq!</span>(<span class="string">"world"</span>, iter.next().unwrap().unwrap());
<a href=#549 id=549 data-nosnippet>549</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, iter.next());
<a href=#550 id=550 data-nosnippet>550</a> }
<a href=#551 id=551 data-nosnippet>551</a>
<a href=#552 id=552 data-nosnippet>552</a> <span class="attr">#[test]
<a href=#553 id=553 data-nosnippet>553</a> </span><span class="kw">fn </span>test_string_view_vector_build_get() {
<a href=#554 id=554 data-nosnippet>554</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = StringVectorBuilder::with_view_capacity(<span class="number">4</span>);
<a href=#555 id=555 data-nosnippet>555</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">"hello"</span>));
<a href=#556 id=556 data-nosnippet>556</a> builder.push(<span class="prelude-val">None</span>);
<a href=#557 id=557 data-nosnippet>557</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">"world"</span>));
<a href=#558 id=558 data-nosnippet>558</a> <span class="kw">let </span>vector = builder.finish();
<a href=#559 id=559 data-nosnippet>559</a>
<a href=#560 id=560 data-nosnippet>560</a> <span class="macro">assert_eq!</span>(ConcreteDataType::utf8_view_datatype(), vector.data_type());
<a href=#561 id=561 data-nosnippet>561</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="string">"hello"</span>), vector.get_data(<span class="number">0</span>));
<a href=#562 id=562 data-nosnippet>562</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, vector.get_data(<span class="number">1</span>));
<a href=#563 id=563 data-nosnippet>563</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">Some</span>(<span class="string">"world"</span>), vector.get_data(<span class="number">2</span>));
<a href=#564 id=564 data-nosnippet>564</a>
<a href=#565 id=565 data-nosnippet>565</a> <span class="comment">// Get out of bound
<a href=#566 id=566 data-nosnippet>566</a> </span><span class="macro">assert!</span>(vector.try_get(<span class="number">3</span>).is_err());
<a href=#567 id=567 data-nosnippet>567</a>
<a href=#568 id=568 data-nosnippet>568</a> <span class="macro">assert_eq!</span>(Value::String(<span class="string">"hello"</span>.into()), vector.get(<span class="number">0</span>));
<a href=#569 id=569 data-nosnippet>569</a> <span class="macro">assert_eq!</span>(Value::Null, vector.get(<span class="number">1</span>));
<a href=#570 id=570 data-nosnippet>570</a> <span class="macro">assert_eq!</span>(Value::String(<span class="string">"world"</span>.into()), vector.get(<span class="number">2</span>));
<a href=#571 id=571 data-nosnippet>571</a>
<a href=#572 id=572 data-nosnippet>572</a> <span class="kw">let </span><span class="kw-2">mut </span>iter = vector.iter_data();
<a href=#573 id=573 data-nosnippet>573</a> <span class="macro">assert_eq!</span>(<span class="string">"hello"</span>, iter.next().unwrap().unwrap());
<a href=#574 id=574 data-nosnippet>574</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, iter.next().unwrap());
<a href=#575 id=575 data-nosnippet>575</a> <span class="macro">assert_eq!</span>(<span class="string">"world"</span>, iter.next().unwrap().unwrap());
<a href=#576 id=576 data-nosnippet>576</a> <span class="macro">assert_eq!</span>(<span class="prelude-val">None</span>, iter.next());
<a href=#577 id=577 data-nosnippet>577</a>
<a href=#578 id=578 data-nosnippet>578</a> <span class="kw">let </span>arrow_arr = vector.to_arrow_array();
<a href=#579 id=579 data-nosnippet>579</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>DataType::Utf8View, arrow_arr.data_type());
<a href=#580 id=580 data-nosnippet>580</a> }
<a href=#581 id=581 data-nosnippet>581</a>
<a href=#582 id=582 data-nosnippet>582</a> <span class="attr">#[test]
<a href=#583 id=583 data-nosnippet>583</a> </span><span class="kw">fn </span>test_string_vector_builder() {
<a href=#584 id=584 data-nosnippet>584</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = StringVectorBuilder::with_capacity(<span class="number">3</span>);
<a href=#585 id=585 data-nosnippet>585</a> builder.push_value_ref(<span class="kw-2">&amp;</span>ValueRef::String(<span class="string">"hello"</span>));
<a href=#586 id=586 data-nosnippet>586</a> <span class="macro">assert!</span>(builder.try_push_value_ref(<span class="kw-2">&amp;</span>ValueRef::Int32(<span class="number">123</span>)).is_err());
<a href=#587 id=587 data-nosnippet>587</a>
<a href=#588 id=588 data-nosnippet>588</a> <span class="kw">let </span>input = StringVector::from_slice(<span class="kw-2">&amp;</span>[<span class="string">"world"</span>, <span class="string">"one"</span>, <span class="string">"two"</span>]);
<a href=#589 id=589 data-nosnippet>589</a> builder.extend_slice_of(<span class="kw-2">&amp;</span>input, <span class="number">1</span>, <span class="number">2</span>).unwrap();
<a href=#590 id=590 data-nosnippet>590</a> <span class="macro">assert!</span>(
<a href=#591 id=591 data-nosnippet>591</a> builder
<a href=#592 id=592 data-nosnippet>592</a> .extend_slice_of(<span class="kw-2">&amp;</span><span class="kw">crate</span>::vectors::Int32Vector::from_slice([<span class="number">13</span>]), <span class="number">0</span>, <span class="number">1</span>)
<a href=#593 id=593 data-nosnippet>593</a> .is_err()
<a href=#594 id=594 data-nosnippet>594</a> );
<a href=#595 id=595 data-nosnippet>595</a> <span class="kw">let </span>vector = builder.to_vector();
<a href=#596 id=596 data-nosnippet>596</a>
<a href=#597 id=597 data-nosnippet>597</a> <span class="kw">let </span>expect: VectorRef = Arc::new(StringVector::from_slice(<span class="kw-2">&amp;</span>[<span class="string">"hello"</span>, <span class="string">"one"</span>, <span class="string">"two"</span>]));
<a href=#598 id=598 data-nosnippet>598</a> <span class="macro">assert_eq!</span>(expect, vector);
<a href=#599 id=599 data-nosnippet>599</a> }
<a href=#600 id=600 data-nosnippet>600</a>
<a href=#601 id=601 data-nosnippet>601</a> <span class="attr">#[test]
<a href=#602 id=602 data-nosnippet>602</a> </span><span class="kw">fn </span>test_string_vector_misc() {
<a href=#603 id=603 data-nosnippet>603</a> <span class="kw">let </span>strs = <span class="macro">vec!</span>[<span class="string">"hello"</span>, <span class="string">"greptime"</span>, <span class="string">"rust"</span>];
<a href=#604 id=604 data-nosnippet>604</a> <span class="kw">let </span>v = StringVector::from(strs.clone());
<a href=#605 id=605 data-nosnippet>605</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, v.len());
<a href=#606 id=606 data-nosnippet>606</a> <span class="macro">assert_eq!</span>(<span class="string">"StringVector"</span>, v.vector_type_name());
<a href=#607 id=607 data-nosnippet>607</a> <span class="macro">assert!</span>(v.validity().is_all_valid());
<a href=#608 id=608 data-nosnippet>608</a> <span class="macro">assert!</span>(!v.only_null());
<a href=#609 id=609 data-nosnippet>609</a> <span class="macro">assert_eq!</span>(<span class="number">1040</span>, v.memory_size());
<a href=#610 id=610 data-nosnippet>610</a>
<a href=#611 id=611 data-nosnippet>611</a> <span class="kw">for </span>(i, s) <span class="kw">in </span>strs.iter().enumerate() {
<a href=#612 id=612 data-nosnippet>612</a> <span class="macro">assert_eq!</span>(Value::from(<span class="kw-2">*</span>s), v.get(i));
<a href=#613 id=613 data-nosnippet>613</a> <span class="macro">assert_eq!</span>(ValueRef::from(<span class="kw-2">*</span>s), v.get_ref(i));
<a href=#614 id=614 data-nosnippet>614</a> <span class="macro">assert_eq!</span>(Value::from(<span class="kw-2">*</span>s), v.try_get(i).unwrap());
<a href=#615 id=615 data-nosnippet>615</a> }
<a href=#616 id=616 data-nosnippet>616</a>
<a href=#617 id=617 data-nosnippet>617</a> <span class="kw">let </span>arrow_arr = v.to_arrow_array();
<a href=#618 id=618 data-nosnippet>618</a> <span class="macro">assert_eq!</span>(<span class="number">3</span>, arrow_arr.len());
<a href=#619 id=619 data-nosnippet>619</a> <span class="macro">assert_eq!</span>(<span class="kw-2">&amp;</span>DataType::Utf8, arrow_arr.data_type());
<a href=#620 id=620 data-nosnippet>620</a> }
<a href=#621 id=621 data-nosnippet>621</a>
<a href=#622 id=622 data-nosnippet>622</a> <span class="attr">#[test]
<a href=#623 id=623 data-nosnippet>623</a> </span><span class="kw">fn </span>test_serialize_string_vector() {
<a href=#624 id=624 data-nosnippet>624</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = StringVectorBuilder::with_capacity(<span class="number">3</span>);
<a href=#625 id=625 data-nosnippet>625</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">"hello"</span>));
<a href=#626 id=626 data-nosnippet>626</a> builder.push(<span class="prelude-val">None</span>);
<a href=#627 id=627 data-nosnippet>627</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">"world"</span>));
<a href=#628 id=628 data-nosnippet>628</a> <span class="kw">let </span>string_vector = builder.finish();
<a href=#629 id=629 data-nosnippet>629</a> <span class="kw">let </span>serialized =
<a href=#630 id=630 data-nosnippet>630</a> serde_json::to_string(<span class="kw-2">&amp;</span>string_vector.serialize_to_json().unwrap()).unwrap();
<a href=#631 id=631 data-nosnippet>631</a> <span class="macro">assert_eq!</span>(<span class="string">r#"["hello",null,"world"]"#</span>, serialized);
<a href=#632 id=632 data-nosnippet>632</a> }
<a href=#633 id=633 data-nosnippet>633</a>
<a href=#634 id=634 data-nosnippet>634</a> <span class="attr">#[test]
<a href=#635 id=635 data-nosnippet>635</a> </span><span class="kw">fn </span>test_from_arrow_array() {
<a href=#636 id=636 data-nosnippet>636</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = MutableStringArray::new();
<a href=#637 id=637 data-nosnippet>637</a> builder.append_option(<span class="prelude-val">Some</span>(<span class="string">"A"</span>));
<a href=#638 id=638 data-nosnippet>638</a> builder.append_option(<span class="prelude-val">Some</span>(<span class="string">"B"</span>));
<a href=#639 id=639 data-nosnippet>639</a> builder.append_null();
<a href=#640 id=640 data-nosnippet>640</a> builder.append_option(<span class="prelude-val">Some</span>(<span class="string">"D"</span>));
<a href=#641 id=641 data-nosnippet>641</a> <span class="kw">let </span>string_array: StringArray = builder.finish();
<a href=#642 id=642 data-nosnippet>642</a> <span class="kw">let </span>vector = StringVector::from(string_array);
<a href=#643 id=643 data-nosnippet>643</a> <span class="macro">assert_eq!</span>(
<a href=#644 id=644 data-nosnippet>644</a> <span class="string">r#"["A","B",null,"D"]"#</span>,
<a href=#645 id=645 data-nosnippet>645</a> serde_json::to_string(<span class="kw-2">&amp;</span>vector.serialize_to_json().unwrap()).unwrap(),
<a href=#646 id=646 data-nosnippet>646</a> );
<a href=#647 id=647 data-nosnippet>647</a> }
<a href=#648 id=648 data-nosnippet>648</a>
<a href=#649 id=649 data-nosnippet>649</a> <span class="attr">#[test]
<a href=#650 id=650 data-nosnippet>650</a> </span><span class="kw">fn </span>test_from_non_option_string() {
<a href=#651 id=651 data-nosnippet>651</a> <span class="kw">let </span>nul = String::from_utf8(<span class="macro">vec!</span>[<span class="number">0</span>]).unwrap();
<a href=#652 id=652 data-nosnippet>652</a> <span class="kw">let </span>corpus = <span class="macro">vec!</span>[<span class="string">"😅😅😅"</span>, <span class="string">"😍😍😍😍"</span>, <span class="string">"🥵🥵"</span>, nul.as_str()];
<a href=#653 id=653 data-nosnippet>653</a> <span class="kw">let </span>vector = StringVector::from(corpus);
<a href=#654 id=654 data-nosnippet>654</a> <span class="kw">let </span>serialized = serde_json::to_string(<span class="kw-2">&amp;</span>vector.serialize_to_json().unwrap()).unwrap();
<a href=#655 id=655 data-nosnippet>655</a> <span class="macro">assert_eq!</span>(<span class="string">r#"["😅😅😅","😍😍😍😍","🥵🥵","\u0000"]"#</span>, serialized);
<a href=#656 id=656 data-nosnippet>656</a>
<a href=#657 id=657 data-nosnippet>657</a> <span class="kw">let </span>corpus = <span class="macro">vec!</span>[
<a href=#658 id=658 data-nosnippet>658</a> <span class="string">"🀀🀀🀀"</span>.to_string(),
<a href=#659 id=659 data-nosnippet>659</a> <span class="string">"🀁🀁🀁"</span>.to_string(),
<a href=#660 id=660 data-nosnippet>660</a> <span class="string">"🀂🀂🀂"</span>.to_string(),
<a href=#661 id=661 data-nosnippet>661</a> <span class="string">"🀃🀃🀃"</span>.to_string(),
<a href=#662 id=662 data-nosnippet>662</a> <span class="string">"🀆🀆"</span>.to_string(),
<a href=#663 id=663 data-nosnippet>663</a> ];
<a href=#664 id=664 data-nosnippet>664</a> <span class="kw">let </span>vector = StringVector::from(corpus);
<a href=#665 id=665 data-nosnippet>665</a> <span class="kw">let </span>serialized = serde_json::to_string(<span class="kw-2">&amp;</span>vector.serialize_to_json().unwrap()).unwrap();
<a href=#666 id=666 data-nosnippet>666</a> <span class="macro">assert_eq!</span>(<span class="string">r#"["🀀🀀🀀","🀁🀁🀁","🀂🀂🀂","🀃🀃🀃","🀆🀆"]"#</span>, serialized);
<a href=#667 id=667 data-nosnippet>667</a> }
<a href=#668 id=668 data-nosnippet>668</a>
<a href=#669 id=669 data-nosnippet>669</a> <span class="attr">#[test]
<a href=#670 id=670 data-nosnippet>670</a> </span><span class="kw">fn </span>test_string_vector_builder_finish_cloned() {
<a href=#671 id=671 data-nosnippet>671</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = StringVectorBuilder::with_capacity(<span class="number">1024</span>);
<a href=#672 id=672 data-nosnippet>672</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">"1"</span>));
<a href=#673 id=673 data-nosnippet>673</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">"2"</span>));
<a href=#674 id=674 data-nosnippet>674</a> builder.push(<span class="prelude-val">Some</span>(<span class="string">"3"</span>));
<a href=#675 id=675 data-nosnippet>675</a> <span class="kw">let </span>vector = builder.finish_cloned();
<a href=#676 id=676 data-nosnippet>676</a> <span class="macro">assert_eq!</span>(vector.len(), <span class="number">3</span>);
<a href=#677 id=677 data-nosnippet>677</a> <span class="macro">assert_eq!</span>(
<a href=#678 id=678 data-nosnippet>678</a> <span class="string">r#"["1","2","3"]"#</span>,
<a href=#679 id=679 data-nosnippet>679</a> serde_json::to_string(<span class="kw-2">&amp;</span>vector.serialize_to_json().unwrap()).unwrap(),
<a href=#680 id=680 data-nosnippet>680</a> );
<a href=#681 id=681 data-nosnippet>681</a> <span class="macro">assert_eq!</span>(builder.len(), <span class="number">3</span>);
<a href=#682 id=682 data-nosnippet>682</a> }
<a href=#683 id=683 data-nosnippet>683</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/struct_vector.rs`."><title>struct_vector.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>struct_vector.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>std::any::Any;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::sync::Arc;
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>arrow::array::NullBufferBuilder;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>arrow::compute::TakeOptions;
<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>arrow::datatypes::DataType <span class="kw">as </span>ArrowDataType;
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>arrow_array::{Array, ArrayRef, StructArray};
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>datafusion_common::ScalarValue;
<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>snafu::{ResultExt, ensure};
<a href=#24 id=24 data-nosnippet>24</a>
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span><span class="kw">crate</span>::error::{
<a href=#26 id=26 data-nosnippet>26</a> ArrowComputeSnafu, ConversionSnafu, Error, InconsistentStructFieldsAndItemsSnafu, <span class="prelude-ty">Result</span>,
<a href=#27 id=27 data-nosnippet>27</a> SerializeSnafu, UnsupportedOperationSnafu,
<a href=#28 id=28 data-nosnippet>28</a>};
<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span><span class="kw">crate</span>::prelude::{ConcreteDataType, DataType, ScalarVector, ScalarVectorBuilder};
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">use </span><span class="kw">crate</span>::serialize::Serializable;
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">use </span><span class="kw">crate</span>::types::StructType;
<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span><span class="kw">crate</span>::value::{StructValue, StructValueRef, Value, ValueRef};
<a href=#33 id=33 data-nosnippet>33</a><span class="kw">use </span><span class="kw">crate</span>::vectors::operations::VectorOp;
<a href=#34 id=34 data-nosnippet>34</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{<span class="self">self</span>, Helper, MutableVector, Validity, Vector, VectorRef};
<a href=#35 id=35 data-nosnippet>35</a>
<a href=#36 id=36 data-nosnippet>36</a><span class="doccomment">/// A simple wrapper around `StructArray` to represent a vector of structs in GreptimeDB.
<a href=#37 id=37 data-nosnippet>37</a></span><span class="attr">#[derive(Debug, PartialEq)]
<a href=#38 id=38 data-nosnippet>38</a></span><span class="kw">pub struct </span>StructVector {
<a href=#39 id=39 data-nosnippet>39</a> array: StructArray,
<a href=#40 id=40 data-nosnippet>40</a> fields: StructType,
<a href=#41 id=41 data-nosnippet>41</a>}
<a href=#42 id=42 data-nosnippet>42</a>
<a href=#43 id=43 data-nosnippet>43</a><span class="kw">impl </span>StructVector {
<a href=#44 id=44 data-nosnippet>44</a> <span class="kw">pub fn </span>try_new(fields: StructType, array: StructArray) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#45 id=45 data-nosnippet>45</a> <span class="macro">ensure!</span>(
<a href=#46 id=46 data-nosnippet>46</a> fields.fields().len() == array.fields().len(),
<a href=#47 id=47 data-nosnippet>47</a> InconsistentStructFieldsAndItemsSnafu {
<a href=#48 id=48 data-nosnippet>48</a> field_len: fields.fields().len(),
<a href=#49 id=49 data-nosnippet>49</a> item_len: array.fields().len(),
<a href=#50 id=50 data-nosnippet>50</a> }
<a href=#51 id=51 data-nosnippet>51</a> );
<a href=#52 id=52 data-nosnippet>52</a> <span class="prelude-val">Ok</span>(StructVector { array, fields })
<a href=#53 id=53 data-nosnippet>53</a> }
<a href=#54 id=54 data-nosnippet>54</a>
<a href=#55 id=55 data-nosnippet>55</a> <span class="kw">pub fn </span>array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>StructArray {
<a href=#56 id=56 data-nosnippet>56</a> <span class="kw-2">&amp;</span><span class="self">self</span>.array
<a href=#57 id=57 data-nosnippet>57</a> }
<a href=#58 id=58 data-nosnippet>58</a>
<a href=#59 id=59 data-nosnippet>59</a> <span class="kw">pub fn </span>as_arrow(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Array {
<a href=#60 id=60 data-nosnippet>60</a> <span class="kw-2">&amp;</span><span class="self">self</span>.array
<a href=#61 id=61 data-nosnippet>61</a> }
<a href=#62 id=62 data-nosnippet>62</a>
<a href=#63 id=63 data-nosnippet>63</a> <span class="kw">pub fn </span>struct_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>StructType {
<a href=#64 id=64 data-nosnippet>64</a> <span class="kw-2">&amp;</span><span class="self">self</span>.fields
<a href=#65 id=65 data-nosnippet>65</a> }
<a href=#66 id=66 data-nosnippet>66</a>}
<a href=#67 id=67 data-nosnippet>67</a>
<a href=#68 id=68 data-nosnippet>68</a><span class="kw">impl </span>Vector <span class="kw">for </span>StructVector {
<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#70 id=70 data-nosnippet>70</a> ConcreteDataType::struct_datatype(<span class="self">self</span>.fields.clone())
<a href=#71 id=71 data-nosnippet>71</a> }
<a href=#72 id=72 data-nosnippet>72</a>
<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">fn </span>vector_type_name(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; String {
<a href=#74 id=74 data-nosnippet>74</a> <span class="string">"StructVector"</span>.to_string()
<a href=#75 id=75 data-nosnippet>75</a> }
<a href=#76 id=76 data-nosnippet>76</a>
<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>std::any::Any {
<a href=#78 id=78 data-nosnippet>78</a> <span class="self">self
<a href=#79 id=79 data-nosnippet>79</a> </span>}
<a href=#80 id=80 data-nosnippet>80</a>
<a href=#81 id=81 data-nosnippet>81</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#82 id=82 data-nosnippet>82</a> <span class="self">self</span>.array.len()
<a href=#83 id=83 data-nosnippet>83</a> }
<a href=#84 id=84 data-nosnippet>84</a>
<a href=#85 id=85 data-nosnippet>85</a> <span class="kw">fn </span>to_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ArrayRef {
<a href=#86 id=86 data-nosnippet>86</a> Arc::new(<span class="self">self</span>.array.clone())
<a href=#87 id=87 data-nosnippet>87</a> }
<a href=#88 id=88 data-nosnippet>88</a>
<a href=#89 id=89 data-nosnippet>89</a> <span class="kw">fn </span>to_boxed_arrow_array(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Box&lt;<span class="kw">dyn </span>Array&gt; {
<a href=#90 id=90 data-nosnippet>90</a> Box::new(<span class="self">self</span>.array.clone())
<a href=#91 id=91 data-nosnippet>91</a> }
<a href=#92 id=92 data-nosnippet>92</a>
<a href=#93 id=93 data-nosnippet>93</a> <span class="kw">fn </span>validity(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Validity {
<a href=#94 id=94 data-nosnippet>94</a> <span class="macro">vectors::impl_validity_for_vector!</span>(<span class="self">self</span>.array)
<a href=#95 id=95 data-nosnippet>95</a> }
<a href=#96 id=96 data-nosnippet>96</a>
<a href=#97 id=97 data-nosnippet>97</a> <span class="kw">fn </span>memory_size(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#98 id=98 data-nosnippet>98</a> <span class="self">self</span>.array.get_buffer_memory_size()
<a href=#99 id=99 data-nosnippet>99</a> }
<a href=#100 id=100 data-nosnippet>100</a>
<a href=#101 id=101 data-nosnippet>101</a> <span class="kw">fn </span>null_count(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#102 id=102 data-nosnippet>102</a> <span class="self">self</span>.array.null_count()
<a href=#103 id=103 data-nosnippet>103</a> }
<a href=#104 id=104 data-nosnippet>104</a>
<a href=#105 id=105 data-nosnippet>105</a> <span class="kw">fn </span>is_null(<span class="kw-2">&amp;</span><span class="self">self</span>, row: usize) -&gt; bool {
<a href=#106 id=106 data-nosnippet>106</a> <span class="self">self</span>.array.is_null(row)
<a href=#107 id=107 data-nosnippet>107</a> }
<a href=#108 id=108 data-nosnippet>108</a>
<a href=#109 id=109 data-nosnippet>109</a> <span class="kw">fn </span>slice(<span class="kw-2">&amp;</span><span class="self">self</span>, offset: usize, length: usize) -&gt; VectorRef {
<a href=#110 id=110 data-nosnippet>110</a> Arc::new(StructVector {
<a href=#111 id=111 data-nosnippet>111</a> array: <span class="self">self</span>.array.slice(offset, length),
<a href=#112 id=112 data-nosnippet>112</a> fields: <span class="self">self</span>.fields.clone(),
<a href=#113 id=113 data-nosnippet>113</a> })
<a href=#114 id=114 data-nosnippet>114</a> }
<a href=#115 id=115 data-nosnippet>115</a>
<a href=#116 id=116 data-nosnippet>116</a> <span class="kw">fn </span>get(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; Value {
<a href=#117 id=117 data-nosnippet>117</a> <span class="kw">if </span>!<span class="self">self</span>.array.is_valid(index) {
<a href=#118 id=118 data-nosnippet>118</a> <span class="kw">return </span>Value::Null;
<a href=#119 id=119 data-nosnippet>119</a> }
<a href=#120 id=120 data-nosnippet>120</a>
<a href=#121 id=121 data-nosnippet>121</a> <span class="kw">let </span>values = (<span class="number">0</span>..<span class="self">self</span>.fields.fields().len())
<a href=#122 id=122 data-nosnippet>122</a> .map(|i| {
<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">let </span>field_array = <span class="kw-2">&amp;</span><span class="self">self</span>.array.column(i);
<a href=#124 id=124 data-nosnippet>124</a>
<a href=#125 id=125 data-nosnippet>125</a> <span class="kw">if </span>field_array.is_null(index) {
<a href=#126 id=126 data-nosnippet>126</a> Value::Null
<a href=#127 id=127 data-nosnippet>127</a> } <span class="kw">else </span>{
<a href=#128 id=128 data-nosnippet>128</a> <span class="kw">let </span>scalar_value = ScalarValue::try_from_array(field_array, index).unwrap();
<a href=#129 id=129 data-nosnippet>129</a> Value::try_from(scalar_value).unwrap()
<a href=#130 id=130 data-nosnippet>130</a> }
<a href=#131 id=131 data-nosnippet>131</a> })
<a href=#132 id=132 data-nosnippet>132</a> .collect();
<a href=#133 id=133 data-nosnippet>133</a>
<a href=#134 id=134 data-nosnippet>134</a> Value::Struct(StructValue::try_new(values, <span class="self">self</span>.fields.clone()).unwrap())
<a href=#135 id=135 data-nosnippet>135</a> }
<a href=#136 id=136 data-nosnippet>136</a>
<a href=#137 id=137 data-nosnippet>137</a> <span class="kw">fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>, index: usize) -&gt; ValueRef&lt;<span class="lifetime">'_</span>&gt; {
<a href=#138 id=138 data-nosnippet>138</a> ValueRef::Struct(StructValueRef::Indexed {
<a href=#139 id=139 data-nosnippet>139</a> vector: <span class="self">self</span>,
<a href=#140 id=140 data-nosnippet>140</a> idx: index,
<a href=#141 id=141 data-nosnippet>141</a> })
<a href=#142 id=142 data-nosnippet>142</a> }
<a href=#143 id=143 data-nosnippet>143</a>}
<a href=#144 id=144 data-nosnippet>144</a>
<a href=#145 id=145 data-nosnippet>145</a><span class="kw">impl </span>VectorOp <span class="kw">for </span>StructVector {
<a href=#146 id=146 data-nosnippet>146</a> <span class="kw">fn </span>cast(<span class="kw-2">&amp;</span><span class="self">self</span>, _to_type: <span class="kw-2">&amp;</span>ConcreteDataType) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#147 id=147 data-nosnippet>147</a> UnsupportedOperationSnafu {
<a href=#148 id=148 data-nosnippet>148</a> op: <span class="string">"cast"</span>,
<a href=#149 id=149 data-nosnippet>149</a> vector_type: <span class="self">self</span>.vector_type_name(),
<a href=#150 id=150 data-nosnippet>150</a> }
<a href=#151 id=151 data-nosnippet>151</a> .fail()
<a href=#152 id=152 data-nosnippet>152</a> }
<a href=#153 id=153 data-nosnippet>153</a>
<a href=#154 id=154 data-nosnippet>154</a> <span class="kw">fn </span>filter(<span class="kw-2">&amp;</span><span class="self">self</span>, filter: <span class="kw-2">&amp;</span>vectors::BooleanVector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#155 id=155 data-nosnippet>155</a> <span class="kw">let </span>filtered =
<a href=#156 id=156 data-nosnippet>156</a> datafusion_common::arrow::compute::filter(<span class="kw-2">&amp;</span><span class="self">self</span>.array, filter.as_boolean_array())
<a href=#157 id=157 data-nosnippet>157</a> .context(ArrowComputeSnafu)
<a href=#158 id=158 data-nosnippet>158</a> .and_then(Helper::try_into_vector)<span class="question-mark">?</span>;
<a href=#159 id=159 data-nosnippet>159</a> <span class="prelude-val">Ok</span>(filtered)
<a href=#160 id=160 data-nosnippet>160</a> }
<a href=#161 id=161 data-nosnippet>161</a>
<a href=#162 id=162 data-nosnippet>162</a> <span class="kw">fn </span>take(<span class="kw-2">&amp;</span><span class="self">self</span>, indices: <span class="kw-2">&amp;</span>vectors::UInt32Vector) -&gt; <span class="prelude-ty">Result</span>&lt;VectorRef&gt; {
<a href=#163 id=163 data-nosnippet>163</a> <span class="kw">let </span>take_result = datafusion_common::arrow::compute::take(
<a href=#164 id=164 data-nosnippet>164</a> <span class="kw-2">&amp;</span><span class="self">self</span>.array,
<a href=#165 id=165 data-nosnippet>165</a> indices.as_arrow(),
<a href=#166 id=166 data-nosnippet>166</a> <span class="prelude-val">Some</span>(TakeOptions { check_bounds: <span class="bool-val">true </span>}),
<a href=#167 id=167 data-nosnippet>167</a> )
<a href=#168 id=168 data-nosnippet>168</a> .context(ArrowComputeSnafu)
<a href=#169 id=169 data-nosnippet>169</a> .and_then(Helper::try_into_vector)<span class="question-mark">?</span>;
<a href=#170 id=170 data-nosnippet>170</a> <span class="prelude-val">Ok</span>(take_result)
<a href=#171 id=171 data-nosnippet>171</a> }
<a href=#172 id=172 data-nosnippet>172</a>}
<a href=#173 id=173 data-nosnippet>173</a>
<a href=#174 id=174 data-nosnippet>174</a><span class="kw">impl </span>Serializable <span class="kw">for </span>StructVector {
<a href=#175 id=175 data-nosnippet>175</a> <span class="kw">fn </span>serialize_to_json(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;Vec&lt;serde_json::Value&gt;&gt; {
<a href=#176 id=176 data-nosnippet>176</a> <span class="kw">let </span>vectors = <span class="self">self
<a href=#177 id=177 data-nosnippet>177</a> </span>.array
<a href=#178 id=178 data-nosnippet>178</a> .columns()
<a href=#179 id=179 data-nosnippet>179</a> .iter()
<a href=#180 id=180 data-nosnippet>180</a> .map(|value_array| Helper::try_into_vector(value_array))
<a href=#181 id=181 data-nosnippet>181</a> .collect::&lt;<span class="prelude-ty">Result</span>&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;&gt;()<span class="question-mark">?</span>;
<a href=#182 id=182 data-nosnippet>182</a>
<a href=#183 id=183 data-nosnippet>183</a> (<span class="number">0</span>..<span class="self">self</span>.array.len())
<a href=#184 id=184 data-nosnippet>184</a> .map(|idx| {
<a href=#185 id=185 data-nosnippet>185</a> <span class="kw">let </span><span class="kw-2">mut </span>result = serde_json::Map::with_capacity(vectors.len());
<a href=#186 id=186 data-nosnippet>186</a> <span class="kw">for </span>(field, vector) <span class="kw">in </span><span class="self">self</span>.fields.fields().iter().zip(vectors.iter()) {
<a href=#187 id=187 data-nosnippet>187</a> <span class="kw">let </span>field_value = vector.get(idx);
<a href=#188 id=188 data-nosnippet>188</a> result.insert(
<a href=#189 id=189 data-nosnippet>189</a> field.name().to_string(),
<a href=#190 id=190 data-nosnippet>190</a> field_value.try_into().context(SerializeSnafu)<span class="question-mark">?</span>,
<a href=#191 id=191 data-nosnippet>191</a> );
<a href=#192 id=192 data-nosnippet>192</a> }
<a href=#193 id=193 data-nosnippet>193</a> <span class="prelude-val">Ok</span>(result.into())
<a href=#194 id=194 data-nosnippet>194</a> })
<a href=#195 id=195 data-nosnippet>195</a> .collect::&lt;<span class="prelude-ty">Result</span>&lt;Vec&lt;serde_json::Value&gt;&gt;&gt;()
<a href=#196 id=196 data-nosnippet>196</a> }
<a href=#197 id=197 data-nosnippet>197</a>}
<a href=#198 id=198 data-nosnippet>198</a>
<a href=#199 id=199 data-nosnippet>199</a><span class="kw">impl </span>TryFrom&lt;StructArray&gt; <span class="kw">for </span>StructVector {
<a href=#200 id=200 data-nosnippet>200</a> <span class="kw">type </span>Error = Error;
<a href=#201 id=201 data-nosnippet>201</a>
<a href=#202 id=202 data-nosnippet>202</a> <span class="kw">fn </span>try_from(array: StructArray) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>&gt; {
<a href=#203 id=203 data-nosnippet>203</a> <span class="kw">let </span>fields = <span class="kw">match </span>array.data_type() {
<a href=#204 id=204 data-nosnippet>204</a> ArrowDataType::Struct(fields) =&gt; StructType::from(fields),
<a href=#205 id=205 data-nosnippet>205</a> other =&gt; ConversionSnafu {
<a href=#206 id=206 data-nosnippet>206</a> from: other.to_string(),
<a href=#207 id=207 data-nosnippet>207</a> }
<a href=#208 id=208 data-nosnippet>208</a> .fail()<span class="question-mark">?</span>,
<a href=#209 id=209 data-nosnippet>209</a> };
<a href=#210 id=210 data-nosnippet>210</a> <span class="prelude-val">Ok</span>(<span class="self">Self </span>{ array, fields })
<a href=#211 id=211 data-nosnippet>211</a> }
<a href=#212 id=212 data-nosnippet>212</a>}
<a href=#213 id=213 data-nosnippet>213</a>
<a href=#214 id=214 data-nosnippet>214</a><span class="kw">impl </span>ScalarVector <span class="kw">for </span>StructVector {
<a href=#215 id=215 data-nosnippet>215</a> <span class="kw">type </span>OwnedItem = StructValue;
<a href=#216 id=216 data-nosnippet>216</a> <span class="kw">type </span>RefItem&lt;<span class="lifetime">'a</span>&gt; = StructValueRef&lt;<span class="lifetime">'a</span>&gt;;
<a href=#217 id=217 data-nosnippet>217</a> <span class="kw">type </span>Iter&lt;<span class="lifetime">'a</span>&gt; = StructIter&lt;<span class="lifetime">'a</span>&gt;;
<a href=#218 id=218 data-nosnippet>218</a> <span class="kw">type </span>Builder = StructVectorBuilder;
<a href=#219 id=219 data-nosnippet>219</a>
<a href=#220 id=220 data-nosnippet>220</a> <span class="kw">fn </span>get_data(<span class="kw-2">&amp;</span><span class="self">self</span>, idx: usize) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt; {
<a href=#221 id=221 data-nosnippet>221</a> <span class="kw">if </span><span class="self">self</span>.array.is_valid(idx) {
<a href=#222 id=222 data-nosnippet>222</a> <span class="prelude-val">Some</span>(StructValueRef::Indexed { vector: <span class="self">self</span>, idx })
<a href=#223 id=223 data-nosnippet>223</a> } <span class="kw">else </span>{
<a href=#224 id=224 data-nosnippet>224</a> <span class="prelude-val">None
<a href=#225 id=225 data-nosnippet>225</a> </span>}
<a href=#226 id=226 data-nosnippet>226</a> }
<a href=#227 id=227 data-nosnippet>227</a>
<a href=#228 id=228 data-nosnippet>228</a> <span class="kw">fn </span>iter_data(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::Iter&lt;<span class="lifetime">'_</span>&gt; {
<a href=#229 id=229 data-nosnippet>229</a> StructIter::new(<span class="self">self</span>)
<a href=#230 id=230 data-nosnippet>230</a> }
<a href=#231 id=231 data-nosnippet>231</a>}
<a href=#232 id=232 data-nosnippet>232</a>
<a href=#233 id=233 data-nosnippet>233</a><span class="kw">pub struct </span>StructIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#234 id=234 data-nosnippet>234</a> vector: <span class="kw-2">&amp;</span><span class="lifetime">'a </span>StructVector,
<a href=#235 id=235 data-nosnippet>235</a> index: usize,
<a href=#236 id=236 data-nosnippet>236</a>}
<a href=#237 id=237 data-nosnippet>237</a>
<a href=#238 id=238 data-nosnippet>238</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; StructIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#239 id=239 data-nosnippet>239</a> <span class="kw">pub fn </span>new(vector: <span class="kw-2">&amp;</span><span class="lifetime">'a </span>StructVector) -&gt; <span class="self">Self </span>{
<a href=#240 id=240 data-nosnippet>240</a> <span class="self">Self </span>{ vector, index: <span class="number">0 </span>}
<a href=#241 id=241 data-nosnippet>241</a> }
<a href=#242 id=242 data-nosnippet>242</a>}
<a href=#243 id=243 data-nosnippet>243</a>
<a href=#244 id=244 data-nosnippet>244</a><span class="kw">impl</span>&lt;<span class="lifetime">'a</span>&gt; Iterator <span class="kw">for </span>StructIter&lt;<span class="lifetime">'a</span>&gt; {
<a href=#245 id=245 data-nosnippet>245</a> <span class="kw">type </span>Item = <span class="prelude-ty">Option</span>&lt;StructValueRef&lt;<span class="lifetime">'a</span>&gt;&gt;;
<a href=#246 id=246 data-nosnippet>246</a>
<a href=#247 id=247 data-nosnippet>247</a> <span class="kw">fn </span>next(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="self">Self</span>::Item&gt; {
<a href=#248 id=248 data-nosnippet>248</a> <span class="kw">if </span><span class="self">self</span>.index &lt; <span class="self">self</span>.vector.len() {
<a href=#249 id=249 data-nosnippet>249</a> <span class="kw">let </span>idx = <span class="self">self</span>.index;
<a href=#250 id=250 data-nosnippet>250</a> <span class="self">self</span>.index += <span class="number">1</span>;
<a href=#251 id=251 data-nosnippet>251</a>
<a href=#252 id=252 data-nosnippet>252</a> <span class="kw">if </span><span class="self">self</span>.vector.is_null(idx) {
<a href=#253 id=253 data-nosnippet>253</a> <span class="prelude-val">Some</span>(<span class="prelude-val">None</span>)
<a href=#254 id=254 data-nosnippet>254</a> } <span class="kw">else </span>{
<a href=#255 id=255 data-nosnippet>255</a> <span class="kw">let </span>value = StructValueRef::Indexed {
<a href=#256 id=256 data-nosnippet>256</a> vector: <span class="self">self</span>.vector,
<a href=#257 id=257 data-nosnippet>257</a> idx,
<a href=#258 id=258 data-nosnippet>258</a> };
<a href=#259 id=259 data-nosnippet>259</a>
<a href=#260 id=260 data-nosnippet>260</a> <span class="prelude-val">Some</span>(<span class="prelude-val">Some</span>(value))
<a href=#261 id=261 data-nosnippet>261</a> }
<a href=#262 id=262 data-nosnippet>262</a> } <span class="kw">else </span>{
<a href=#263 id=263 data-nosnippet>263</a> <span class="prelude-val">None
<a href=#264 id=264 data-nosnippet>264</a> </span>}
<a href=#265 id=265 data-nosnippet>265</a> }
<a href=#266 id=266 data-nosnippet>266</a>
<a href=#267 id=267 data-nosnippet>267</a> <span class="kw">fn </span>size_hint(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; (usize, <span class="prelude-ty">Option</span>&lt;usize&gt;) {
<a href=#268 id=268 data-nosnippet>268</a> (<span class="self">self</span>.vector.len(), <span class="prelude-val">Some</span>(<span class="self">self</span>.vector.len()))
<a href=#269 id=269 data-nosnippet>269</a> }
<a href=#270 id=270 data-nosnippet>270</a>}
<a href=#271 id=271 data-nosnippet>271</a>
<a href=#272 id=272 data-nosnippet>272</a><span class="kw">pub struct </span>StructVectorBuilder {
<a href=#273 id=273 data-nosnippet>273</a> value_builders: Vec&lt;Box&lt;<span class="kw">dyn </span>MutableVector&gt;&gt;,
<a href=#274 id=274 data-nosnippet>274</a> null_buffer: NullBufferBuilder,
<a href=#275 id=275 data-nosnippet>275</a> fields: StructType,
<a href=#276 id=276 data-nosnippet>276</a>}
<a href=#277 id=277 data-nosnippet>277</a>
<a href=#278 id=278 data-nosnippet>278</a><span class="kw">impl </span>StructVectorBuilder {
<a href=#279 id=279 data-nosnippet>279</a> <span class="kw">pub fn </span>with_type_and_capacity(fields: StructType, capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#280 id=280 data-nosnippet>280</a> <span class="kw">let </span>value_builders = fields
<a href=#281 id=281 data-nosnippet>281</a> .fields()
<a href=#282 id=282 data-nosnippet>282</a> .iter()
<a href=#283 id=283 data-nosnippet>283</a> .map(|f| f.data_type().create_mutable_vector(capacity))
<a href=#284 id=284 data-nosnippet>284</a> .collect();
<a href=#285 id=285 data-nosnippet>285</a> <span class="self">Self </span>{
<a href=#286 id=286 data-nosnippet>286</a> value_builders,
<a href=#287 id=287 data-nosnippet>287</a> null_buffer: NullBufferBuilder::new(capacity),
<a href=#288 id=288 data-nosnippet>288</a> fields,
<a href=#289 id=289 data-nosnippet>289</a> }
<a href=#290 id=290 data-nosnippet>290</a> }
<a href=#291 id=291 data-nosnippet>291</a>
<a href=#292 id=292 data-nosnippet>292</a> <span class="kw">fn </span>push_struct_value(<span class="kw-2">&amp;mut </span><span class="self">self</span>, struct_value: <span class="kw-2">&amp;</span>StructValue) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#293 id=293 data-nosnippet>293</a> <span class="kw">for </span>(index, value) <span class="kw">in </span>struct_value.items().iter().enumerate() {
<a href=#294 id=294 data-nosnippet>294</a> <span class="self">self</span>.value_builders[index].try_push_value_ref(<span class="kw-2">&amp;</span>value.as_value_ref())<span class="question-mark">?</span>;
<a href=#295 id=295 data-nosnippet>295</a> }
<a href=#296 id=296 data-nosnippet>296</a> <span class="self">self</span>.null_buffer.append_non_null();
<a href=#297 id=297 data-nosnippet>297</a>
<a href=#298 id=298 data-nosnippet>298</a> <span class="prelude-val">Ok</span>(())
<a href=#299 id=299 data-nosnippet>299</a> }
<a href=#300 id=300 data-nosnippet>300</a>
<a href=#301 id=301 data-nosnippet>301</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>push_struct_value_ref(<span class="kw-2">&amp;mut </span><span class="self">self</span>, struct_value: StructValueRef&lt;<span class="lifetime">'_</span>&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#302 id=302 data-nosnippet>302</a> <span class="kw">match </span>struct_value {
<a href=#303 id=303 data-nosnippet>303</a> StructValueRef::Indexed { vector, idx } =&gt; <span class="kw">match </span>vector.get(idx).as_struct()<span class="question-mark">? </span>{
<a href=#304 id=304 data-nosnippet>304</a> <span class="prelude-val">Some</span>(struct_value) =&gt; <span class="self">self</span>.push_struct_value(struct_value)<span class="question-mark">?</span>,
<a href=#305 id=305 data-nosnippet>305</a> <span class="prelude-val">None </span>=&gt; <span class="self">self</span>.push_null_struct_value(),
<a href=#306 id=306 data-nosnippet>306</a> },
<a href=#307 id=307 data-nosnippet>307</a> StructValueRef::Ref(value) =&gt; <span class="self">self</span>.push_struct_value(value)<span class="question-mark">?</span>,
<a href=#308 id=308 data-nosnippet>308</a> StructValueRef::RefList { val, fields } =&gt; {
<a href=#309 id=309 data-nosnippet>309</a> <span class="macro">ensure!</span>(
<a href=#310 id=310 data-nosnippet>310</a> val.len() == <span class="self">self</span>.value_builders.len(),
<a href=#311 id=311 data-nosnippet>311</a> InconsistentStructFieldsAndItemsSnafu {
<a href=#312 id=312 data-nosnippet>312</a> field_len: <span class="self">self</span>.value_builders.len(),
<a href=#313 id=313 data-nosnippet>313</a> item_len: val.len(),
<a href=#314 id=314 data-nosnippet>314</a> }
<a href=#315 id=315 data-nosnippet>315</a> );
<a href=#316 id=316 data-nosnippet>316</a> <span class="macro">ensure!</span>(
<a href=#317 id=317 data-nosnippet>317</a> fields.fields().len() == <span class="self">self</span>.value_builders.len(),
<a href=#318 id=318 data-nosnippet>318</a> InconsistentStructFieldsAndItemsSnafu {
<a href=#319 id=319 data-nosnippet>319</a> field_len: <span class="self">self</span>.value_builders.len(),
<a href=#320 id=320 data-nosnippet>320</a> item_len: fields.fields().len(),
<a href=#321 id=321 data-nosnippet>321</a> }
<a href=#322 id=322 data-nosnippet>322</a> );
<a href=#323 id=323 data-nosnippet>323</a> <span class="kw">for </span>(builder, value) <span class="kw">in </span><span class="self">self</span>.value_builders.iter_mut().zip(val) {
<a href=#324 id=324 data-nosnippet>324</a> builder.try_push_value_ref(<span class="kw-2">&amp;</span>value)<span class="question-mark">?</span>;
<a href=#325 id=325 data-nosnippet>325</a> }
<a href=#326 id=326 data-nosnippet>326</a> <span class="self">self</span>.null_buffer.append_non_null();
<a href=#327 id=327 data-nosnippet>327</a> }
<a href=#328 id=328 data-nosnippet>328</a> }
<a href=#329 id=329 data-nosnippet>329</a> <span class="prelude-val">Ok</span>(())
<a href=#330 id=330 data-nosnippet>330</a> }
<a href=#331 id=331 data-nosnippet>331</a>
<a href=#332 id=332 data-nosnippet>332</a> <span class="kw">fn </span>push_null_struct_value(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#333 id=333 data-nosnippet>333</a> <span class="kw">for </span>builder <span class="kw">in </span><span class="kw-2">&amp;mut </span><span class="self">self</span>.value_builders {
<a href=#334 id=334 data-nosnippet>334</a> builder.push_null();
<a href=#335 id=335 data-nosnippet>335</a> }
<a href=#336 id=336 data-nosnippet>336</a> <span class="self">self</span>.null_buffer.append_null();
<a href=#337 id=337 data-nosnippet>337</a> }
<a href=#338 id=338 data-nosnippet>338</a>}
<a href=#339 id=339 data-nosnippet>339</a>
<a href=#340 id=340 data-nosnippet>340</a><span class="kw">impl </span>MutableVector <span class="kw">for </span>StructVectorBuilder {
<a href=#341 id=341 data-nosnippet>341</a> <span class="kw">fn </span>data_type(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; ConcreteDataType {
<a href=#342 id=342 data-nosnippet>342</a> ConcreteDataType::struct_datatype(<span class="self">self</span>.fields.clone())
<a href=#343 id=343 data-nosnippet>343</a> }
<a href=#344 id=344 data-nosnippet>344</a>
<a href=#345 id=345 data-nosnippet>345</a> <span class="kw">fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#346 id=346 data-nosnippet>346</a> <span class="self">self</span>.null_buffer.len()
<a href=#347 id=347 data-nosnippet>347</a> }
<a href=#348 id=348 data-nosnippet>348</a>
<a href=#349 id=349 data-nosnippet>349</a> <span class="kw">fn </span>as_any(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span><span class="kw">dyn </span>Any {
<a href=#350 id=350 data-nosnippet>350</a> <span class="self">self
<a href=#351 id=351 data-nosnippet>351</a> </span>}
<a href=#352 id=352 data-nosnippet>352</a>
<a href=#353 id=353 data-nosnippet>353</a> <span class="kw">fn </span>as_mut_any(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span><span class="kw">dyn </span>Any {
<a href=#354 id=354 data-nosnippet>354</a> <span class="self">self
<a href=#355 id=355 data-nosnippet>355</a> </span>}
<a href=#356 id=356 data-nosnippet>356</a>
<a href=#357 id=357 data-nosnippet>357</a> <span class="kw">fn </span>to_vector(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; VectorRef {
<a href=#358 id=358 data-nosnippet>358</a> Arc::new(<span class="self">self</span>.finish())
<a href=#359 id=359 data-nosnippet>359</a> }
<a href=#360 id=360 data-nosnippet>360</a>
<a href=#361 id=361 data-nosnippet>361</a> <span class="kw">fn </span>to_vector_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; VectorRef {
<a href=#362 id=362 data-nosnippet>362</a> Arc::new(<span class="self">self</span>.finish_cloned())
<a href=#363 id=363 data-nosnippet>363</a> }
<a href=#364 id=364 data-nosnippet>364</a>
<a href=#365 id=365 data-nosnippet>365</a> <span class="kw">fn </span>try_push_value_ref(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="kw-2">&amp;</span>ValueRef) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#366 id=366 data-nosnippet>366</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(struct_ref) = value.try_into_struct()<span class="question-mark">? </span>{
<a href=#367 id=367 data-nosnippet>367</a> <span class="self">self</span>.push_struct_value_ref(struct_ref)<span class="question-mark">?</span>;
<a href=#368 id=368 data-nosnippet>368</a> } <span class="kw">else </span>{
<a href=#369 id=369 data-nosnippet>369</a> <span class="self">self</span>.push_null();
<a href=#370 id=370 data-nosnippet>370</a> }
<a href=#371 id=371 data-nosnippet>371</a>
<a href=#372 id=372 data-nosnippet>372</a> <span class="prelude-val">Ok</span>(())
<a href=#373 id=373 data-nosnippet>373</a> }
<a href=#374 id=374 data-nosnippet>374</a>
<a href=#375 id=375 data-nosnippet>375</a> <span class="kw">fn </span>extend_slice_of(<span class="kw-2">&amp;mut </span><span class="self">self</span>, vector: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Vector, offset: usize, length: usize) -&gt; <span class="prelude-ty">Result</span>&lt;()&gt; {
<a href=#376 id=376 data-nosnippet>376</a> <span class="kw">for </span>idx <span class="kw">in </span>offset..offset + length {
<a href=#377 id=377 data-nosnippet>377</a> <span class="kw">let </span>value = vector.get_ref(idx);
<a href=#378 id=378 data-nosnippet>378</a> <span class="self">self</span>.try_push_value_ref(<span class="kw-2">&amp;</span>value)<span class="question-mark">?</span>;
<a href=#379 id=379 data-nosnippet>379</a> }
<a href=#380 id=380 data-nosnippet>380</a>
<a href=#381 id=381 data-nosnippet>381</a> <span class="prelude-val">Ok</span>(())
<a href=#382 id=382 data-nosnippet>382</a> }
<a href=#383 id=383 data-nosnippet>383</a>
<a href=#384 id=384 data-nosnippet>384</a> <span class="kw">fn </span>push_null(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
<a href=#385 id=385 data-nosnippet>385</a> <span class="self">self</span>.push_null_struct_value();
<a href=#386 id=386 data-nosnippet>386</a> }
<a href=#387 id=387 data-nosnippet>387</a>}
<a href=#388 id=388 data-nosnippet>388</a>
<a href=#389 id=389 data-nosnippet>389</a><span class="kw">impl </span>ScalarVectorBuilder <span class="kw">for </span>StructVectorBuilder {
<a href=#390 id=390 data-nosnippet>390</a> <span class="kw">type </span>VectorType = StructVector;
<a href=#391 id=391 data-nosnippet>391</a>
<a href=#392 id=392 data-nosnippet>392</a> <span class="kw">fn </span>with_capacity(_capacity: usize) -&gt; <span class="self">Self </span>{
<a href=#393 id=393 data-nosnippet>393</a> <span class="macro">panic!</span>(<span class="string">"Must use StructVectorBuilder::with_type_capacity()"</span>);
<a href=#394 id=394 data-nosnippet>394</a> }
<a href=#395 id=395 data-nosnippet>395</a>
<a href=#396 id=396 data-nosnippet>396</a> <span class="kw">fn </span>push(<span class="kw-2">&amp;mut </span><span class="self">self</span>, value: <span class="prelude-ty">Option</span>&lt;&lt;<span class="self">Self</span>::VectorType <span class="kw">as </span>ScalarVector&gt;::RefItem&lt;<span class="lifetime">'_</span>&gt;&gt;) {
<a href=#397 id=397 data-nosnippet>397</a> <span class="self">self</span>.try_push_value_ref(<span class="kw-2">&amp;</span>value.map(ValueRef::Struct).unwrap_or(ValueRef::Null))
<a href=#398 id=398 data-nosnippet>398</a> .unwrap_or_else(|e| {
<a href=#399 id=399 data-nosnippet>399</a> <span class="macro">panic!</span>(
<a href=#400 id=400 data-nosnippet>400</a> <span class="string">"Failed to push value, expect value type {:?}, err:{}"</span>,
<a href=#401 id=401 data-nosnippet>401</a> <span class="self">self</span>.fields, e
<a href=#402 id=402 data-nosnippet>402</a> );
<a href=#403 id=403 data-nosnippet>403</a> });
<a href=#404 id=404 data-nosnippet>404</a> }
<a href=#405 id=405 data-nosnippet>405</a>
<a href=#406 id=406 data-nosnippet>406</a> <span class="kw">fn </span>finish(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#407 id=407 data-nosnippet>407</a> <span class="kw">let </span>arrays = <span class="self">self
<a href=#408 id=408 data-nosnippet>408</a> </span>.value_builders
<a href=#409 id=409 data-nosnippet>409</a> .iter_mut()
<a href=#410 id=410 data-nosnippet>410</a> .map(|b| b.to_vector().to_arrow_array())
<a href=#411 id=411 data-nosnippet>411</a> .collect::&lt;Vec&lt;<span class="kw">_</span>&gt;&gt;();
<a href=#412 id=412 data-nosnippet>412</a>
<a href=#413 id=413 data-nosnippet>413</a> <span class="kw">let </span>struct_array = <span class="kw">if </span>arrays.is_empty() {
<a href=#414 id=414 data-nosnippet>414</a> StructArray::new_empty_fields(<span class="self">self</span>.len(), <span class="self">self</span>.null_buffer.finish())
<a href=#415 id=415 data-nosnippet>415</a> } <span class="kw">else </span>{
<a href=#416 id=416 data-nosnippet>416</a> StructArray::new(
<a href=#417 id=417 data-nosnippet>417</a> <span class="self">self</span>.fields.as_arrow_fields(),
<a href=#418 id=418 data-nosnippet>418</a> arrays,
<a href=#419 id=419 data-nosnippet>419</a> <span class="self">self</span>.null_buffer.finish(),
<a href=#420 id=420 data-nosnippet>420</a> )
<a href=#421 id=421 data-nosnippet>421</a> };
<a href=#422 id=422 data-nosnippet>422</a>
<a href=#423 id=423 data-nosnippet>423</a> StructVector::try_new(<span class="self">self</span>.fields.clone(), struct_array).unwrap()
<a href=#424 id=424 data-nosnippet>424</a> }
<a href=#425 id=425 data-nosnippet>425</a>
<a href=#426 id=426 data-nosnippet>426</a> <span class="kw">fn </span>finish_cloned(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="self">Self</span>::VectorType {
<a href=#427 id=427 data-nosnippet>427</a> <span class="kw">let </span>arrays = <span class="self">self
<a href=#428 id=428 data-nosnippet>428</a> </span>.value_builders
<a href=#429 id=429 data-nosnippet>429</a> .iter()
<a href=#430 id=430 data-nosnippet>430</a> .map(|b| b.to_vector_cloned().to_arrow_array())
<a href=#431 id=431 data-nosnippet>431</a> .collect();
<a href=#432 id=432 data-nosnippet>432</a>
<a href=#433 id=433 data-nosnippet>433</a> <span class="kw">let </span>struct_array = StructArray::new(
<a href=#434 id=434 data-nosnippet>434</a> <span class="self">self</span>.fields.as_arrow_fields(),
<a href=#435 id=435 data-nosnippet>435</a> arrays,
<a href=#436 id=436 data-nosnippet>436</a> <span class="self">self</span>.null_buffer.finish_cloned(),
<a href=#437 id=437 data-nosnippet>437</a> );
<a href=#438 id=438 data-nosnippet>438</a> StructVector::try_new(<span class="self">self</span>.fields.clone(), struct_array).unwrap()
<a href=#439 id=439 data-nosnippet>439</a> }
<a href=#440 id=440 data-nosnippet>440</a>}
<a href=#441 id=441 data-nosnippet>441</a>
<a href=#442 id=442 data-nosnippet>442</a><span class="attr">#[cfg(test)]
<a href=#443 id=443 data-nosnippet>443</a></span><span class="kw">mod </span>tests {
<a href=#444 id=444 data-nosnippet>444</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#445 id=445 data-nosnippet>445</a> <span class="kw">use </span><span class="kw">crate</span>::json::JsonSettings;
<a href=#446 id=446 data-nosnippet>446</a> <span class="kw">use </span><span class="kw">crate</span>::schema::{ColumnDefaultConstraint, ColumnSchema};
<a href=#447 id=447 data-nosnippet>447</a> <span class="kw">use </span><span class="kw">crate</span>::types::StructField;
<a href=#448 id=448 data-nosnippet>448</a> <span class="kw">use </span><span class="kw">crate</span>::value::ListValue;
<a href=#449 id=449 data-nosnippet>449</a> <span class="kw">use </span><span class="kw">crate</span>::value::tests::<span class="kw-2">*</span>;
<a href=#450 id=450 data-nosnippet>450</a>
<a href=#451 id=451 data-nosnippet>451</a> <span class="attr">#[test]
<a href=#452 id=452 data-nosnippet>452</a> </span><span class="kw">fn </span>test_struct_vector_builder() {
<a href=#453 id=453 data-nosnippet>453</a> <span class="kw">let </span>struct_type = build_struct_type();
<a href=#454 id=454 data-nosnippet>454</a>
<a href=#455 id=455 data-nosnippet>455</a> <span class="kw">let </span>struct_values = (<span class="number">0</span>..<span class="number">10</span>).map(|<span class="kw">_</span>| build_struct_value());
<a href=#456 id=456 data-nosnippet>456</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = StructVectorBuilder::with_type_and_capacity(struct_type.clone(), <span class="number">20</span>);
<a href=#457 id=457 data-nosnippet>457</a> <span class="kw">for </span>value <span class="kw">in </span>struct_values {
<a href=#458 id=458 data-nosnippet>458</a> builder.push(<span class="prelude-val">Some</span>(StructValueRef::Ref(<span class="kw-2">&amp;</span>value)));
<a href=#459 id=459 data-nosnippet>459</a> }
<a href=#460 id=460 data-nosnippet>460</a>
<a href=#461 id=461 data-nosnippet>461</a> builder.push_nulls(<span class="number">5</span>);
<a href=#462 id=462 data-nosnippet>462</a>
<a href=#463 id=463 data-nosnippet>463</a> <span class="kw">let </span>vector = builder.finish();
<a href=#464 id=464 data-nosnippet>464</a> <span class="macro">assert_eq!</span>(
<a href=#465 id=465 data-nosnippet>465</a> vector.data_type(),
<a href=#466 id=466 data-nosnippet>466</a> ConcreteDataType::struct_datatype(struct_type.clone())
<a href=#467 id=467 data-nosnippet>467</a> );
<a href=#468 id=468 data-nosnippet>468</a> <span class="macro">assert_eq!</span>(vector.len(), <span class="number">15</span>);
<a href=#469 id=469 data-nosnippet>469</a> <span class="macro">assert_eq!</span>(vector.null_count(), <span class="number">5</span>);
<a href=#470 id=470 data-nosnippet>470</a>
<a href=#471 id=471 data-nosnippet>471</a> <span class="kw">let </span><span class="kw-2">mut </span>null_count = <span class="number">0</span>;
<a href=#472 id=472 data-nosnippet>472</a> <span class="kw">for </span>item <span class="kw">in </span>vector.iter_data() {
<a href=#473 id=473 data-nosnippet>473</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(value) = item.as_ref() {
<a href=#474 id=474 data-nosnippet>474</a> <span class="macro">assert_eq!</span>(value.struct_type(), <span class="kw-2">&amp;</span>struct_type);
<a href=#475 id=475 data-nosnippet>475</a> } <span class="kw">else </span>{
<a href=#476 id=476 data-nosnippet>476</a> null_count += <span class="number">1</span>;
<a href=#477 id=477 data-nosnippet>477</a> }
<a href=#478 id=478 data-nosnippet>478</a> }
<a href=#479 id=479 data-nosnippet>479</a> <span class="macro">assert_eq!</span>(<span class="number">5</span>, null_count);
<a href=#480 id=480 data-nosnippet>480</a>
<a href=#481 id=481 data-nosnippet>481</a> <span class="kw">let </span>value = vector.get(<span class="number">2</span>);
<a href=#482 id=482 data-nosnippet>482</a> <span class="kw">if let </span>Value::Struct(struct_value) = value {
<a href=#483 id=483 data-nosnippet>483</a> <span class="macro">assert_eq!</span>(struct_value.struct_type(), <span class="kw-2">&amp;</span>struct_type);
<a href=#484 id=484 data-nosnippet>484</a> <span class="kw">let </span><span class="kw-2">mut </span>items = struct_value.items().iter();
<a href=#485 id=485 data-nosnippet>485</a> <span class="macro">assert_eq!</span>(items.next(), <span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span>Value::Int32(<span class="number">1</span>)));
<a href=#486 id=486 data-nosnippet>486</a> <span class="macro">assert_eq!</span>(items.next(), <span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span>Value::String(<span class="string">"tom"</span>.into())));
<a href=#487 id=487 data-nosnippet>487</a> <span class="macro">assert_eq!</span>(items.next(), <span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span>Value::UInt8(<span class="number">25</span>)));
<a href=#488 id=488 data-nosnippet>488</a> <span class="macro">assert_eq!</span>(items.next(), <span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span>Value::String(<span class="string">"94038"</span>.into())));
<a href=#489 id=489 data-nosnippet>489</a> <span class="macro">assert_eq!</span>(items.next(), <span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span>Value::List(build_list_value())));
<a href=#490 id=490 data-nosnippet>490</a> <span class="macro">assert_eq!</span>(items.next(), <span class="prelude-val">None</span>);
<a href=#491 id=491 data-nosnippet>491</a> } <span class="kw">else </span>{
<a href=#492 id=492 data-nosnippet>492</a> <span class="macro">panic!</span>(<span class="string">"Expected a struct value"</span>);
<a href=#493 id=493 data-nosnippet>493</a> }
<a href=#494 id=494 data-nosnippet>494</a> }
<a href=#495 id=495 data-nosnippet>495</a>
<a href=#496 id=496 data-nosnippet>496</a> <span class="attr">#[test]
<a href=#497 id=497 data-nosnippet>497</a> </span><span class="kw">fn </span>test_struct_vector_builder_push_ref_list() {
<a href=#498 id=498 data-nosnippet>498</a> <span class="kw">let </span>struct_type = StructType::new(Arc::new(<span class="macro">vec!</span>[
<a href=#499 id=499 data-nosnippet>499</a> StructField::new(<span class="string">"id"</span>.to_string(), ConcreteDataType::int64_datatype(), <span class="bool-val">true</span>),
<a href=#500 id=500 data-nosnippet>500</a> StructField::new(
<a href=#501 id=501 data-nosnippet>501</a> <span class="string">"name"</span>.to_string(),
<a href=#502 id=502 data-nosnippet>502</a> ConcreteDataType::string_datatype(),
<a href=#503 id=503 data-nosnippet>503</a> <span class="bool-val">true</span>,
<a href=#504 id=504 data-nosnippet>504</a> ),
<a href=#505 id=505 data-nosnippet>505</a> ]));
<a href=#506 id=506 data-nosnippet>506</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = StructVectorBuilder::with_type_and_capacity(struct_type.clone(), <span class="number">2</span>);
<a href=#507 id=507 data-nosnippet>507</a> builder
<a href=#508 id=508 data-nosnippet>508</a> .push_struct_value_ref(StructValueRef::RefList {
<a href=#509 id=509 data-nosnippet>509</a> val: <span class="macro">vec!</span>[ValueRef::Int64(<span class="number">1</span>), ValueRef::String(<span class="string">"foo"</span>)],
<a href=#510 id=510 data-nosnippet>510</a> fields: struct_type.clone(),
<a href=#511 id=511 data-nosnippet>511</a> })
<a href=#512 id=512 data-nosnippet>512</a> .unwrap();
<a href=#513 id=513 data-nosnippet>513</a> builder.push_null();
<a href=#514 id=514 data-nosnippet>514</a>
<a href=#515 id=515 data-nosnippet>515</a> <span class="kw">let </span>vector = builder.finish();
<a href=#516 id=516 data-nosnippet>516</a> <span class="macro">assert_eq!</span>(vector.len(), <span class="number">2</span>);
<a href=#517 id=517 data-nosnippet>517</a> <span class="macro">assert_eq!</span>(vector.null_count(), <span class="number">1</span>);
<a href=#518 id=518 data-nosnippet>518</a> <span class="macro">assert_eq!</span>(
<a href=#519 id=519 data-nosnippet>519</a> vector.get(<span class="number">0</span>),
<a href=#520 id=520 data-nosnippet>520</a> Value::Struct(StructValue::new(
<a href=#521 id=521 data-nosnippet>521</a> <span class="macro">vec!</span>[Value::Int64(<span class="number">1</span>), Value::String(<span class="string">"foo"</span>.into())],
<a href=#522 id=522 data-nosnippet>522</a> struct_type,
<a href=#523 id=523 data-nosnippet>523</a> ))
<a href=#524 id=524 data-nosnippet>524</a> );
<a href=#525 id=525 data-nosnippet>525</a> <span class="macro">assert_eq!</span>(vector.get(<span class="number">1</span>), Value::Null);
<a href=#526 id=526 data-nosnippet>526</a> }
<a href=#527 id=527 data-nosnippet>527</a>
<a href=#528 id=528 data-nosnippet>528</a> <span class="attr">#[test]
<a href=#529 id=529 data-nosnippet>529</a> </span><span class="kw">fn </span>test_default_vector_preserves_json2_identity() {
<a href=#530 id=530 data-nosnippet>530</a> <span class="kw">let </span>json = JsonSettings::default()
<a href=#531 id=531 data-nosnippet>531</a> .encode(<span class="macro">serde_json::json!</span>({<span class="string">"answer"</span>: <span class="number">42</span>}))
<a href=#532 id=532 data-nosnippet>532</a> .unwrap();
<a href=#533 id=533 data-nosnippet>533</a> <span class="kw">let </span>fields = StructType::new(Arc::new(<span class="macro">vec!</span>[StructField::new(
<a href=#534 id=534 data-nosnippet>534</a> <span class="string">"payload"</span>,
<a href=#535 id=535 data-nosnippet>535</a> json.data_type(),
<a href=#536 id=536 data-nosnippet>536</a> <span class="bool-val">true</span>,
<a href=#537 id=537 data-nosnippet>537</a> )]));
<a href=#538 id=538 data-nosnippet>538</a> <span class="kw">let </span>data_type = ConcreteDataType::struct_datatype(fields.clone());
<a href=#539 id=539 data-nosnippet>539</a> <span class="kw">let </span>value = Value::Struct(StructValue::new(<span class="macro">vec!</span>[json], fields));
<a href=#540 id=540 data-nosnippet>540</a> <span class="kw">let </span>schema = ColumnSchema::new(<span class="string">"nested"</span>, data_type.clone(), <span class="bool-val">true</span>)
<a href=#541 id=541 data-nosnippet>541</a> .with_default_constraint(<span class="prelude-val">Some</span>(ColumnDefaultConstraint::Value(value)))
<a href=#542 id=542 data-nosnippet>542</a> .unwrap();
<a href=#543 id=543 data-nosnippet>543</a>
<a href=#544 id=544 data-nosnippet>544</a> <span class="kw">let </span>replicated = schema.create_default_vector(<span class="number">2</span>).unwrap().unwrap();
<a href=#545 id=545 data-nosnippet>545</a>
<a href=#546 id=546 data-nosnippet>546</a> <span class="macro">assert_eq!</span>(replicated.data_type(), data_type);
<a href=#547 id=547 data-nosnippet>547</a> <span class="macro">assert_eq!</span>(replicated.len(), <span class="number">2</span>);
<a href=#548 id=548 data-nosnippet>548</a> }
<a href=#549 id=549 data-nosnippet>549</a>
<a href=#550 id=550 data-nosnippet>550</a> <span class="attr">#[test]
<a href=#551 id=551 data-nosnippet>551</a> </span><span class="kw">fn </span>test_deep_nested_struct_list() {
<a href=#552 id=552 data-nosnippet>552</a> <span class="comment">// level 1: struct
<a href=#553 id=553 data-nosnippet>553</a> </span><span class="kw">let </span>struct_type = ConcreteDataType::struct_datatype(build_struct_type());
<a href=#554 id=554 data-nosnippet>554</a> <span class="kw">let </span>struct_value = build_struct_value();
<a href=#555 id=555 data-nosnippet>555</a> <span class="comment">// level 2: list
<a href=#556 id=556 data-nosnippet>556</a> </span><span class="kw">let </span>struct_type_ref = Arc::new(struct_type);
<a href=#557 id=557 data-nosnippet>557</a> <span class="kw">let </span>list_type = ConcreteDataType::list_datatype(struct_type_ref.clone());
<a href=#558 id=558 data-nosnippet>558</a> <span class="kw">let </span>list_value = ListValue::new(
<a href=#559 id=559 data-nosnippet>559</a> <span class="macro">vec!</span>[
<a href=#560 id=560 data-nosnippet>560</a> Value::Struct(struct_value.clone()),
<a href=#561 id=561 data-nosnippet>561</a> Value::Struct(struct_value.clone()),
<a href=#562 id=562 data-nosnippet>562</a> ],
<a href=#563 id=563 data-nosnippet>563</a> struct_type_ref.clone(),
<a href=#564 id=564 data-nosnippet>564</a> );
<a href=#565 id=565 data-nosnippet>565</a> <span class="comment">// level 3: struct
<a href=#566 id=566 data-nosnippet>566</a> </span><span class="kw">let </span>root_type = StructType::new(Arc::new(<span class="macro">vec!</span>[StructField::new(
<a href=#567 id=567 data-nosnippet>567</a> <span class="string">"items"</span>.to_string(),
<a href=#568 id=568 data-nosnippet>568</a> list_type,
<a href=#569 id=569 data-nosnippet>569</a> <span class="bool-val">false</span>,
<a href=#570 id=570 data-nosnippet>570</a> )]));
<a href=#571 id=571 data-nosnippet>571</a> <span class="kw">let </span>root_value = StructValue::new(<span class="macro">vec!</span>[Value::List(list_value)], root_type.clone());
<a href=#572 id=572 data-nosnippet>572</a>
<a href=#573 id=573 data-nosnippet>573</a> <span class="kw">let </span><span class="kw-2">mut </span>builder = StructVectorBuilder::with_type_and_capacity(root_type.clone(), <span class="number">20</span>);
<a href=#574 id=574 data-nosnippet>574</a> builder.push(<span class="prelude-val">Some</span>(StructValueRef::Ref(<span class="kw-2">&amp;</span>root_value)));
<a href=#575 id=575 data-nosnippet>575</a>
<a href=#576 id=576 data-nosnippet>576</a> <span class="kw">let </span>vector = builder.finish();
<a href=#577 id=577 data-nosnippet>577</a> <span class="macro">assert_eq!</span>(vector.len(), <span class="number">1</span>);
<a href=#578 id=578 data-nosnippet>578</a> <span class="macro">assert_eq!</span>(vector.null_count(), <span class="number">0</span>);
<a href=#579 id=579 data-nosnippet>579</a> <span class="macro">assert_eq!</span>(
<a href=#580 id=580 data-nosnippet>580</a> vector.data_type(),
<a href=#581 id=581 data-nosnippet>581</a> ConcreteDataType::struct_datatype(root_type)
<a href=#582 id=582 data-nosnippet>582</a> );
<a href=#583 id=583 data-nosnippet>583</a> <span class="macro">assert_eq!</span>(vector.get(<span class="number">0</span>), Value::Struct(root_value));
<a href=#584 id=584 data-nosnippet>584</a> }
<a href=#585 id=585 data-nosnippet>585</a>}
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/time.rs`."><title>time.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>time.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span><span class="kw">crate</span>::types::{TimeMicrosecondType, TimeMillisecondType, TimeNanosecondType, TimeSecondType};
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{PrimitiveVector, PrimitiveVectorBuilder};
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="kw">pub type </span>TimeSecondVector = PrimitiveVector&lt;TimeSecondType&gt;;
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">pub type </span>TimeSecondVectorBuilder = PrimitiveVectorBuilder&lt;TimeSecondType&gt;;
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">pub type </span>TimeMillisecondVector = PrimitiveVector&lt;TimeMillisecondType&gt;;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">pub type </span>TimeMillisecondVectorBuilder = PrimitiveVectorBuilder&lt;TimeMillisecondType&gt;;
<a href=#23 id=23 data-nosnippet>23</a>
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">pub type </span>TimeMicrosecondVector = PrimitiveVector&lt;TimeMicrosecondType&gt;;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">pub type </span>TimeMicrosecondVectorBuilder = PrimitiveVectorBuilder&lt;TimeMicrosecondType&gt;;
<a href=#26 id=26 data-nosnippet>26</a>
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">pub type </span>TimeNanosecondVector = PrimitiveVector&lt;TimeNanosecondType&gt;;
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">pub type </span>TimeNanosecondVectorBuilder = PrimitiveVectorBuilder&lt;TimeNanosecondType&gt;;
</code></pre></div></section></main></body></html>
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/timestamp.rs`."><title>timestamp.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>timestamp.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span><span class="kw">crate</span>::types::{
<a href=#16 id=16 data-nosnippet>16</a> TimestampMicrosecondType, TimestampMillisecondType, TimestampNanosecondType,
<a href=#17 id=17 data-nosnippet>17</a> TimestampSecondType,
<a href=#18 id=18 data-nosnippet>18</a>};
<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span><span class="kw">crate</span>::vectors::{PrimitiveVector, PrimitiveVectorBuilder};
<a href=#20 id=20 data-nosnippet>20</a>
<a href=#21 id=21 data-nosnippet>21</a><span class="kw">pub type </span>TimestampSecondVector = PrimitiveVector&lt;TimestampSecondType&gt;;
<a href=#22 id=22 data-nosnippet>22</a><span class="kw">pub type </span>TimestampSecondVectorBuilder = PrimitiveVectorBuilder&lt;TimestampSecondType&gt;;
<a href=#23 id=23 data-nosnippet>23</a>
<a href=#24 id=24 data-nosnippet>24</a><span class="kw">pub type </span>TimestampMillisecondVector = PrimitiveVector&lt;TimestampMillisecondType&gt;;
<a href=#25 id=25 data-nosnippet>25</a><span class="kw">pub type </span>TimestampMillisecondVectorBuilder = PrimitiveVectorBuilder&lt;TimestampMillisecondType&gt;;
<a href=#26 id=26 data-nosnippet>26</a>
<a href=#27 id=27 data-nosnippet>27</a><span class="kw">pub type </span>TimestampMicrosecondVector = PrimitiveVector&lt;TimestampMicrosecondType&gt;;
<a href=#28 id=28 data-nosnippet>28</a><span class="kw">pub type </span>TimestampMicrosecondVectorBuilder = PrimitiveVectorBuilder&lt;TimestampMicrosecondType&gt;;
<a href=#29 id=29 data-nosnippet>29</a>
<a href=#30 id=30 data-nosnippet>30</a><span class="kw">pub type </span>TimestampNanosecondVector = PrimitiveVector&lt;TimestampNanosecondType&gt;;
<a href=#31 id=31 data-nosnippet>31</a><span class="kw">pub type </span>TimestampNanosecondVectorBuilder = PrimitiveVectorBuilder&lt;TimestampNanosecondType&gt;;
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/datatypes/src/vectors/validity.rs`."><title>validity.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="datatypes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.1 (31fca3adb 2026-06-26)" data-channel="1.96.1" data-search-js="search-b5634cc7.js" data-stringdex-js="stringdex-2da4960a.js" data-settings-js="settings-170eb4bf.js" ><script src="../../../static.files/storage-41dd4d93.js"></script><script defer src="../../../static.files/src-script-813739b1.js"></script><script defer src="../../../src-files.js"></script><script defer src="../../../static.files/main-5013f961.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-f7c3ffd8.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><a class="skip-main-content" href="#main-content">Skip to main content</a><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><h1><div class="sub-heading">datatypes/vectors/</div>validity.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
<a href=#2 id=2 data-nosnippet>2</a>//
<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
<a href=#6 id=6 data-nosnippet>6</a>//
<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
<a href=#8 id=8 data-nosnippet>8</a>//
<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
<a href=#14 id=14 data-nosnippet>14</a>
<a href=#15 id=15 data-nosnippet>15</a></span><span class="kw">use </span>arrow::array::ArrayData;
<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>arrow::buffer::NullBuffer;
<a href=#17 id=17 data-nosnippet>17</a>
<a href=#18 id=18 data-nosnippet>18</a><span class="attr">#[derive(Debug, PartialEq)]
<a href=#19 id=19 data-nosnippet>19</a></span><span class="kw">enum </span>ValidityKind {
<a href=#20 id=20 data-nosnippet>20</a> <span class="doccomment">/// Whether the array slot is valid or not (null).
<a href=#21 id=21 data-nosnippet>21</a> </span>Slots {
<a href=#22 id=22 data-nosnippet>22</a> bitmap: NullBuffer,
<a href=#23 id=23 data-nosnippet>23</a> len: usize,
<a href=#24 id=24 data-nosnippet>24</a> null_count: usize,
<a href=#25 id=25 data-nosnippet>25</a> },
<a href=#26 id=26 data-nosnippet>26</a> <span class="doccomment">/// All slots are valid.
<a href=#27 id=27 data-nosnippet>27</a> </span>AllValid { len: usize },
<a href=#28 id=28 data-nosnippet>28</a> <span class="doccomment">/// All slots are null.
<a href=#29 id=29 data-nosnippet>29</a> </span>AllNull { len: usize },
<a href=#30 id=30 data-nosnippet>30</a>}
<a href=#31 id=31 data-nosnippet>31</a>
<a href=#32 id=32 data-nosnippet>32</a><span class="doccomment">/// Validity of a vector.
<a href=#33 id=33 data-nosnippet>33</a></span><span class="attr">#[derive(Debug, PartialEq)]
<a href=#34 id=34 data-nosnippet>34</a></span><span class="kw">pub struct </span>Validity {
<a href=#35 id=35 data-nosnippet>35</a> kind: ValidityKind,
<a href=#36 id=36 data-nosnippet>36</a>}
<a href=#37 id=37 data-nosnippet>37</a>
<a href=#38 id=38 data-nosnippet>38</a><span class="kw">impl </span>Validity {
<a href=#39 id=39 data-nosnippet>39</a> <span class="doccomment">/// Creates a `Validity` from [`ArrayData`].
<a href=#40 id=40 data-nosnippet>40</a> </span><span class="kw">pub fn </span>from_array_data(data: ArrayData) -&gt; Validity {
<a href=#41 id=41 data-nosnippet>41</a> <span class="kw">match </span>data.nulls() {
<a href=#42 id=42 data-nosnippet>42</a> <span class="prelude-val">Some</span>(null_buf) =&gt; Validity {
<a href=#43 id=43 data-nosnippet>43</a> kind: ValidityKind::Slots {
<a href=#44 id=44 data-nosnippet>44</a> bitmap: null_buf.clone(),
<a href=#45 id=45 data-nosnippet>45</a> len: data.len(),
<a href=#46 id=46 data-nosnippet>46</a> null_count: data.null_count(),
<a href=#47 id=47 data-nosnippet>47</a> },
<a href=#48 id=48 data-nosnippet>48</a> },
<a href=#49 id=49 data-nosnippet>49</a> <span class="prelude-val">None </span>=&gt; Validity::all_valid(data.len()),
<a href=#50 id=50 data-nosnippet>50</a> }
<a href=#51 id=51 data-nosnippet>51</a> }
<a href=#52 id=52 data-nosnippet>52</a>
<a href=#53 id=53 data-nosnippet>53</a> <span class="doccomment">/// Creates a `Validity` from a logical null buffer.
<a href=#54 id=54 data-nosnippet>54</a> </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>from_null_buffer(bitmap: NullBuffer) -&gt; Validity {
<a href=#55 id=55 data-nosnippet>55</a> <span class="kw">let </span>len = bitmap.len();
<a href=#56 id=56 data-nosnippet>56</a> <span class="kw">let </span>null_count = bitmap.null_count();
<a href=#57 id=57 data-nosnippet>57</a> Validity {
<a href=#58 id=58 data-nosnippet>58</a> kind: ValidityKind::Slots {
<a href=#59 id=59 data-nosnippet>59</a> bitmap,
<a href=#60 id=60 data-nosnippet>60</a> len,
<a href=#61 id=61 data-nosnippet>61</a> null_count,
<a href=#62 id=62 data-nosnippet>62</a> },
<a href=#63 id=63 data-nosnippet>63</a> }
<a href=#64 id=64 data-nosnippet>64</a> }
<a href=#65 id=65 data-nosnippet>65</a>
<a href=#66 id=66 data-nosnippet>66</a> <span class="doccomment">/// Returns `Validity` that all elements are valid.
<a href=#67 id=67 data-nosnippet>67</a> </span><span class="kw">pub fn </span>all_valid(len: usize) -&gt; Validity {
<a href=#68 id=68 data-nosnippet>68</a> Validity {
<a href=#69 id=69 data-nosnippet>69</a> kind: ValidityKind::AllValid { len },
<a href=#70 id=70 data-nosnippet>70</a> }
<a href=#71 id=71 data-nosnippet>71</a> }
<a href=#72 id=72 data-nosnippet>72</a>
<a href=#73 id=73 data-nosnippet>73</a> <span class="doccomment">/// Returns `Validity` that all elements are null.
<a href=#74 id=74 data-nosnippet>74</a> </span><span class="kw">pub fn </span>all_null(len: usize) -&gt; Validity {
<a href=#75 id=75 data-nosnippet>75</a> Validity {
<a href=#76 id=76 data-nosnippet>76</a> kind: ValidityKind::AllNull { len },
<a href=#77 id=77 data-nosnippet>77</a> }
<a href=#78 id=78 data-nosnippet>78</a> }
<a href=#79 id=79 data-nosnippet>79</a>
<a href=#80 id=80 data-nosnippet>80</a> <span class="doccomment">/// Returns whether `i-th` bit is set.
<a href=#81 id=81 data-nosnippet>81</a> </span><span class="kw">pub fn </span>is_set(<span class="kw-2">&amp;</span><span class="self">self</span>, i: usize) -&gt; bool {
<a href=#82 id=82 data-nosnippet>82</a> <span class="kw">match </span><span class="kw-2">&amp;</span><span class="self">self</span>.kind {
<a href=#83 id=83 data-nosnippet>83</a> ValidityKind::Slots { bitmap, .. } =&gt; bitmap.is_valid(i),
<a href=#84 id=84 data-nosnippet>84</a> ValidityKind::AllValid { len } =&gt; i &lt; <span class="kw-2">*</span>len,
<a href=#85 id=85 data-nosnippet>85</a> ValidityKind::AllNull { .. } =&gt; <span class="bool-val">false</span>,
<a href=#86 id=86 data-nosnippet>86</a> }
<a href=#87 id=87 data-nosnippet>87</a> }
<a href=#88 id=88 data-nosnippet>88</a>
<a href=#89 id=89 data-nosnippet>89</a> <span class="doccomment">/// Returns true if all bits are null.
<a href=#90 id=90 data-nosnippet>90</a> </span><span class="kw">pub fn </span>is_all_null(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">match </span><span class="self">self</span>.kind {
<a href=#92 id=92 data-nosnippet>92</a> ValidityKind::Slots {
<a href=#93 id=93 data-nosnippet>93</a> len, null_count, ..
<a href=#94 id=94 data-nosnippet>94</a> } =&gt; len == null_count,
<a href=#95 id=95 data-nosnippet>95</a> ValidityKind::AllValid { .. } =&gt; <span class="bool-val">false</span>,
<a href=#96 id=96 data-nosnippet>96</a> ValidityKind::AllNull { .. } =&gt; <span class="bool-val">true</span>,
<a href=#97 id=97 data-nosnippet>97</a> }
<a href=#98 id=98 data-nosnippet>98</a> }
<a href=#99 id=99 data-nosnippet>99</a>
<a href=#100 id=100 data-nosnippet>100</a> <span class="doccomment">/// Returns true if all bits are valid.
<a href=#101 id=101 data-nosnippet>101</a> </span><span class="kw">pub fn </span>is_all_valid(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
<a href=#102 id=102 data-nosnippet>102</a> <span class="kw">match </span><span class="self">self</span>.kind {
<a href=#103 id=103 data-nosnippet>103</a> ValidityKind::Slots { null_count, .. } =&gt; null_count == <span class="number">0</span>,
<a href=#104 id=104 data-nosnippet>104</a> ValidityKind::AllValid { .. } =&gt; <span class="bool-val">true</span>,
<a href=#105 id=105 data-nosnippet>105</a> ValidityKind::AllNull { .. } =&gt; <span class="bool-val">false</span>,
<a href=#106 id=106 data-nosnippet>106</a> }
<a href=#107 id=107 data-nosnippet>107</a> }
<a href=#108 id=108 data-nosnippet>108</a>
<a href=#109 id=109 data-nosnippet>109</a> <span class="doccomment">/// The number of null slots.
<a href=#110 id=110 data-nosnippet>110</a> </span><span class="kw">pub fn </span>null_count(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
<a href=#111 id=111 data-nosnippet>111</a> <span class="kw">match </span><span class="self">self</span>.kind {
<a href=#112 id=112 data-nosnippet>112</a> ValidityKind::Slots { null_count, .. } =&gt; null_count,
<a href=#113 id=113 data-nosnippet>113</a> ValidityKind::AllValid { .. } =&gt; <span class="number">0</span>,
<a href=#114 id=114 data-nosnippet>114</a> ValidityKind::AllNull { len } =&gt; len,
<a href=#115 id=115 data-nosnippet>115</a> }
<a href=#116 id=116 data-nosnippet>116</a> }
<a href=#117 id=117 data-nosnippet>117</a>}
<a href=#118 id=118 data-nosnippet>118</a>
<a href=#119 id=119 data-nosnippet>119</a><span class="attr">#[cfg(test)]
<a href=#120 id=120 data-nosnippet>120</a></span><span class="kw">mod </span>tests {
<a href=#121 id=121 data-nosnippet>121</a> <span class="kw">use </span>arrow::array::{Array, Int32Array};
<a href=#122 id=122 data-nosnippet>122</a>
<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">use </span>super::<span class="kw-2">*</span>;
<a href=#124 id=124 data-nosnippet>124</a>
<a href=#125 id=125 data-nosnippet>125</a> <span class="attr">#[test]
<a href=#126 id=126 data-nosnippet>126</a> </span><span class="kw">fn </span>test_all_valid() {
<a href=#127 id=127 data-nosnippet>127</a> <span class="kw">let </span>validity = Validity::all_valid(<span class="number">5</span>);
<a href=#128 id=128 data-nosnippet>128</a> <span class="macro">assert!</span>(validity.is_all_valid());
<a href=#129 id=129 data-nosnippet>129</a> <span class="macro">assert!</span>(!validity.is_all_null());
<a href=#130 id=130 data-nosnippet>130</a> <span class="macro">assert_eq!</span>(<span class="number">0</span>, validity.null_count());
<a href=#131 id=131 data-nosnippet>131</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..<span class="number">5 </span>{
<a href=#132 id=132 data-nosnippet>132</a> <span class="macro">assert!</span>(validity.is_set(i));
<a href=#133 id=133 data-nosnippet>133</a> }
<a href=#134 id=134 data-nosnippet>134</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">5</span>));
<a href=#135 id=135 data-nosnippet>135</a> }
<a href=#136 id=136 data-nosnippet>136</a>
<a href=#137 id=137 data-nosnippet>137</a> <span class="attr">#[test]
<a href=#138 id=138 data-nosnippet>138</a> </span><span class="kw">fn </span>test_all_null() {
<a href=#139 id=139 data-nosnippet>139</a> <span class="kw">let </span>validity = Validity::all_null(<span class="number">5</span>);
<a href=#140 id=140 data-nosnippet>140</a> <span class="macro">assert!</span>(validity.is_all_null());
<a href=#141 id=141 data-nosnippet>141</a> <span class="macro">assert!</span>(!validity.is_all_valid());
<a href=#142 id=142 data-nosnippet>142</a> <span class="macro">assert_eq!</span>(<span class="number">5</span>, validity.null_count());
<a href=#143 id=143 data-nosnippet>143</a> <span class="kw">for </span>i <span class="kw">in </span><span class="number">0</span>..<span class="number">5 </span>{
<a href=#144 id=144 data-nosnippet>144</a> <span class="macro">assert!</span>(!validity.is_set(i));
<a href=#145 id=145 data-nosnippet>145</a> }
<a href=#146 id=146 data-nosnippet>146</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">5</span>));
<a href=#147 id=147 data-nosnippet>147</a> }
<a href=#148 id=148 data-nosnippet>148</a>
<a href=#149 id=149 data-nosnippet>149</a> <span class="attr">#[test]
<a href=#150 id=150 data-nosnippet>150</a> </span><span class="kw">fn </span>test_from_array_data() {
<a href=#151 id=151 data-nosnippet>151</a> <span class="kw">let </span>array = Int32Array::from_iter([<span class="prelude-val">None</span>, <span class="prelude-val">Some</span>(<span class="number">1</span>), <span class="prelude-val">None</span>]);
<a href=#152 id=152 data-nosnippet>152</a> <span class="kw">let </span>validity = Validity::from_array_data(array.to_data());
<a href=#153 id=153 data-nosnippet>153</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, validity.null_count());
<a href=#154 id=154 data-nosnippet>154</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">0</span>));
<a href=#155 id=155 data-nosnippet>155</a> <span class="macro">assert!</span>(validity.is_set(<span class="number">1</span>));
<a href=#156 id=156 data-nosnippet>156</a> <span class="macro">assert!</span>(!validity.is_set(<span class="number">2</span>));
<a href=#157 id=157 data-nosnippet>157</a> <span class="macro">assert!</span>(!validity.is_all_null());
<a href=#158 id=158 data-nosnippet>158</a> <span class="macro">assert!</span>(!validity.is_all_valid());
<a href=#159 id=159 data-nosnippet>159</a>
<a href=#160 id=160 data-nosnippet>160</a> <span class="kw">let </span>array = Int32Array::from_iter([<span class="prelude-val">None</span>, <span class="prelude-val">None</span>]);
<a href=#161 id=161 data-nosnippet>161</a> <span class="kw">let </span>validity = Validity::from_array_data(array.to_data());
<a href=#162 id=162 data-nosnippet>162</a> <span class="macro">assert!</span>(validity.is_all_null());
<a href=#163 id=163 data-nosnippet>163</a> <span class="macro">assert!</span>(!validity.is_all_valid());
<a href=#164 id=164 data-nosnippet>164</a> <span class="macro">assert_eq!</span>(<span class="number">2</span>, validity.null_count());
<a href=#165 id=165 data-nosnippet>165</a>
<a href=#166 id=166 data-nosnippet>166</a> <span class="kw">let </span>array = Int32Array::from_iter_values([<span class="number">1</span>, <span class="number">2</span>]);
<a href=#167 id=167 data-nosnippet>167</a> <span class="kw">let </span>validity = Validity::from_array_data(array.to_data());
<a href=#168 id=168 data-nosnippet>168</a> <span class="macro">assert!</span>(!validity.is_all_null());
<a href=#169 id=169 data-nosnippet>169</a> <span class="macro">assert!</span>(validity.is_all_valid());
<a href=#170 id=170 data-nosnippet>170</a> <span class="macro">assert_eq!</span>(<span class="number">0</span>, validity.null_count());
<a href=#171 id=171 data-nosnippet>171</a> }
<a href=#172 id=172 data-nosnippet>172</a>}
</code></pre></div></section></main></body></html>