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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>}
</code></pre></div></section></main></body></html>