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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/flow/src/repr.rs`."><title>repr.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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../static.files/storage-e2aeef58.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-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-263c88ec.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"><!--[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"><div class="main-heading"><h1><div class="sub-heading">flow/</div>repr.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
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<a href=#2 id=2 data-nosnippet>2</a>//
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<a href=#3 id=3 data-nosnippet>3</a>// Licensed under the Apache License, Version 2.0 (the "License");
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<a href=#4 id=4 data-nosnippet>4</a>// you may not use this file except in compliance with the License.
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<a href=#5 id=5 data-nosnippet>5</a>// You may obtain a copy of the License at
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<a href=#6 id=6 data-nosnippet>6</a>//
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<a href=#7 id=7 data-nosnippet>7</a>// http://www.apache.org/licenses/LICENSE-2.0
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<a href=#8 id=8 data-nosnippet>8</a>//
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<a href=#9 id=9 data-nosnippet>9</a>// Unless required by applicable law or agreed to in writing, software
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<a href=#10 id=10 data-nosnippet>10</a>// distributed under the License is distributed on an "AS IS" BASIS,
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<a href=#11 id=11 data-nosnippet>11</a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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<a href=#12 id=12 data-nosnippet>12</a>// See the License for the specific language governing permissions and
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<a href=#13 id=13 data-nosnippet>13</a>// limitations under the License.
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<a href=#14 id=14 data-nosnippet>14</a>
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<a href=#15 id=15 data-nosnippet>15</a></span><span class="doccomment">//! basically a wrapper around the `datatype` crate
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<a href=#16 id=16 data-nosnippet>16</a>//! for basic Data Representation
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<a href=#17 id=17 data-nosnippet>17</a>
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<a href=#18 id=18 data-nosnippet>18</a></span><span class="kw">mod </span>relation;
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<a href=#19 id=19 data-nosnippet>19</a>
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<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>api::helper::{pb_value_to_value_ref, to_grpc_value};
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<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>api::v1::Row <span class="kw">as </span>ProtoRow;
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<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>datatypes::data_type::ConcreteDataType;
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<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>datatypes::types::cast;
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<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>datatypes::value::Value;
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<a href=#25 id=25 data-nosnippet>25</a><span class="kw">use </span>get_size2::GetSize;
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<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span>itertools::Itertools;
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<a href=#27 id=27 data-nosnippet>27</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>relation::{ColumnType, Key, RelationDesc, RelationType};
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<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span>serde::{Deserialize, Serialize};
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<a href=#29 id=29 data-nosnippet>29</a><span class="kw">use </span>snafu::ResultExt;
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<a href=#30 id=30 data-nosnippet>30</a>
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<a href=#31 id=31 data-nosnippet>31</a><span class="kw">use </span><span class="kw">crate</span>::expr::error::{CastValueSnafu, EvalError, InvalidArgumentSnafu};
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<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span><span class="kw">crate</span>::utils::get_value_heap_size;
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<a href=#33 id=33 data-nosnippet>33</a>
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<a href=#34 id=34 data-nosnippet>34</a><span class="doccomment">/// System-wide Record count difference type. Useful for capture data change
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<a href=#35 id=35 data-nosnippet>35</a>///
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<a href=#36 id=36 data-nosnippet>36</a>/// i.e. +1 means insert one record, -1 means remove,
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<a href=#37 id=37 data-nosnippet>37</a>/// and +/-n means insert/remove multiple duplicate records.
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<a href=#38 id=38 data-nosnippet>38</a></span><span class="kw">pub type </span>Diff = i64;
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<a href=#39 id=39 data-nosnippet>39</a>
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<a href=#40 id=40 data-nosnippet>40</a><span class="doccomment">/// System-wide default timestamp type, in milliseconds
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<a href=#41 id=41 data-nosnippet>41</a></span><span class="kw">pub type </span>Timestamp = i64;
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<a href=#42 id=42 data-nosnippet>42</a>
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<a href=#43 id=43 data-nosnippet>43</a><span class="doccomment">/// System-wide default duration type, in milliseconds
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<a href=#44 id=44 data-nosnippet>44</a></span><span class="kw">pub type </span>Duration = i64;
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<a href=#45 id=45 data-nosnippet>45</a>
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<a href=#46 id=46 data-nosnippet>46</a><span class="doccomment">/// Default type for a repr of changes to a collection.
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<a href=#47 id=47 data-nosnippet>47</a></span><span class="kw">pub type </span>DiffRow = (Row, Timestamp, Diff);
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<a href=#48 id=48 data-nosnippet>48</a>
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<a href=#49 id=49 data-nosnippet>49</a><span class="doccomment">/// Row with key-value pair, timestamp and diff
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<a href=#50 id=50 data-nosnippet>50</a></span><span class="kw">pub type </span>KeyValDiffRow = ((Row, Row), Timestamp, Diff);
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<a href=#51 id=51 data-nosnippet>51</a>
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<a href=#52 id=52 data-nosnippet>52</a><span class="doccomment">/// broadcast channel capacity, can be important to memory consumption, since this influence how many
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<a href=#53 id=53 data-nosnippet>53</a>/// updates can be buffered in memory in the entire dataflow
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<a href=#54 id=54 data-nosnippet>54</a>/// TODO(discord9): add config for this, so cpu&mem usage can be balanced and configured by this
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<a href=#55 id=55 data-nosnippet>55</a></span><span class="kw">pub const </span>BROADCAST_CAP: usize = <span class="number">1024</span>;
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<a href=#56 id=56 data-nosnippet>56</a>
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<a href=#57 id=57 data-nosnippet>57</a><span class="doccomment">/// The maximum capacity of the send buffer, to prevent the buffer from growing too large
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<a href=#58 id=58 data-nosnippet>58</a></span><span class="kw">pub const </span>SEND_BUF_CAP: usize = BROADCAST_CAP * <span class="number">2</span>;
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<a href=#59 id=59 data-nosnippet>59</a>
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<a href=#60 id=60 data-nosnippet>60</a><span class="doccomment">/// Flow worker will try to at least accumulate this many rows before processing them(if one second haven't passed)
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<a href=#61 id=61 data-nosnippet>61</a></span><span class="kw">pub const </span>BATCH_SIZE: usize = <span class="number">32 </span>* <span class="number">16384</span>;
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<a href=#62 id=62 data-nosnippet>62</a>
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<a href=#63 id=63 data-nosnippet>63</a><span class="doccomment">/// Convert a value that is or can be converted to Datetime to internal timestamp
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<a href=#64 id=64 data-nosnippet>64</a>///
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<a href=#65 id=65 data-nosnippet>65</a>/// support types are: `Date`, `DateTime`, `TimeStamp`, `i64`
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<a href=#66 id=66 data-nosnippet>66</a></span><span class="kw">pub fn </span>value_to_internal_ts(value: Value) -> <span class="prelude-ty">Result</span><i64, EvalError> {
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<a href=#67 id=67 data-nosnippet>67</a> <span class="kw">let </span>is_supported_time_type = |arg: <span class="kw-2">&</span>Value| {
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<a href=#68 id=68 data-nosnippet>68</a> <span class="kw">let </span>ty = arg.data_type();
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<a href=#69 id=69 data-nosnippet>69</a> <span class="macro">matches!</span>(
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<a href=#70 id=70 data-nosnippet>70</a> ty,
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<a href=#71 id=71 data-nosnippet>71</a> ConcreteDataType::Date(..) | ConcreteDataType::Timestamp(..)
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<a href=#72 id=72 data-nosnippet>72</a> )
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<a href=#73 id=73 data-nosnippet>73</a> };
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<a href=#74 id=74 data-nosnippet>74</a> <span class="kw">match </span>value {
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<a href=#75 id=75 data-nosnippet>75</a> Value::Int64(ts) => <span class="prelude-val">Ok</span>(ts),
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<a href=#76 id=76 data-nosnippet>76</a> arg <span class="kw">if </span>is_supported_time_type(<span class="kw-2">&</span>arg) => {
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<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">let </span>arg_ty = arg.data_type();
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<a href=#78 id=78 data-nosnippet>78</a> <span class="kw">let </span>res = cast(arg, <span class="kw-2">&</span>ConcreteDataType::timestamp_millisecond_datatype()).context({
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<a href=#79 id=79 data-nosnippet>79</a> CastValueSnafu {
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<a href=#80 id=80 data-nosnippet>80</a> from: arg_ty,
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<a href=#81 id=81 data-nosnippet>81</a> to: ConcreteDataType::timestamp_millisecond_datatype(),
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<a href=#82 id=82 data-nosnippet>82</a> }
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<a href=#83 id=83 data-nosnippet>83</a> })<span class="question-mark">?</span>;
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<a href=#84 id=84 data-nosnippet>84</a> <span class="kw">if let </span>Value::Timestamp(ts) = res {
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<a href=#85 id=85 data-nosnippet>85</a> <span class="prelude-val">Ok</span>(ts.value())
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<a href=#86 id=86 data-nosnippet>86</a> } <span class="kw">else </span>{
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<a href=#87 id=87 data-nosnippet>87</a> <span class="macro">unreachable!</span>()
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<a href=#88 id=88 data-nosnippet>88</a> }
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<a href=#89 id=89 data-nosnippet>89</a> }
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<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">_ </span>=> InvalidArgumentSnafu {
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<a href=#91 id=91 data-nosnippet>91</a> reason: <span class="macro">format!</span>(<span class="string">"Expect a time type or i64, got {:?}"</span>, value.data_type()),
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<a href=#92 id=92 data-nosnippet>92</a> }
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<a href=#93 id=93 data-nosnippet>93</a> .fail(),
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<a href=#94 id=94 data-nosnippet>94</a> }
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<a href=#95 id=95 data-nosnippet>95</a>}
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<a href=#96 id=96 data-nosnippet>96</a>
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<a href=#97 id=97 data-nosnippet>97</a><span class="doccomment">/// A row is a vector of values.
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<a href=#98 id=98 data-nosnippet>98</a>///
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<a href=#99 id=99 data-nosnippet>99</a>/// TODO(discord9): use a more efficient representation
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<a href=#100 id=100 data-nosnippet>100</a>/// i.e. more compact like raw u8 of \[tag0, value0, tag1, value1, ...\]
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<a href=#101 id=101 data-nosnippet>101</a></span><span class="attr">#[derive(Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord, Default, Serialize, Deserialize)]
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<a href=#102 id=102 data-nosnippet>102</a></span><span class="kw">pub struct </span>Row {
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<a href=#103 id=103 data-nosnippet>103</a> <span class="doccomment">/// The inner vector of values
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<a href=#104 id=104 data-nosnippet>104</a> </span><span class="kw">pub </span>inner: Vec<Value>,
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<a href=#105 id=105 data-nosnippet>105</a>}
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<a href=#106 id=106 data-nosnippet>106</a>
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<a href=#107 id=107 data-nosnippet>107</a><span class="kw">impl </span>GetSize <span class="kw">for </span>Row {
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<a href=#108 id=108 data-nosnippet>108</a> <span class="kw">fn </span>get_heap_size(<span class="kw-2">&</span><span class="self">self</span>) -> usize {
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<a href=#109 id=109 data-nosnippet>109</a> <span class="self">self</span>.inner.iter().map(get_value_heap_size).sum()
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<a href=#110 id=110 data-nosnippet>110</a> }
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<a href=#111 id=111 data-nosnippet>111</a>}
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<a href=#112 id=112 data-nosnippet>112</a>
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<a href=#113 id=113 data-nosnippet>113</a><span class="kw">impl </span>Row {
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<a href=#114 id=114 data-nosnippet>114</a> <span class="doccomment">/// Create an empty row
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<a href=#115 id=115 data-nosnippet>115</a> </span><span class="kw">pub fn </span>empty() -> <span class="self">Self </span>{
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<a href=#116 id=116 data-nosnippet>116</a> <span class="self">Self </span>{ inner: <span class="macro">vec!</span>[] }
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<a href=#117 id=117 data-nosnippet>117</a> }
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<a href=#118 id=118 data-nosnippet>118</a>
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<a href=#119 id=119 data-nosnippet>119</a> <span class="doccomment">/// Returns true if the Row contains no elements.
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<a href=#120 id=120 data-nosnippet>120</a> </span><span class="kw">pub fn </span>is_empty(<span class="kw-2">&</span><span class="self">self</span>) -> bool {
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<a href=#121 id=121 data-nosnippet>121</a> <span class="self">self</span>.inner.is_empty()
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<a href=#122 id=122 data-nosnippet>122</a> }
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<a href=#123 id=123 data-nosnippet>123</a>
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<a href=#124 id=124 data-nosnippet>124</a> <span class="doccomment">/// Create a row from a vector of values
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<a href=#125 id=125 data-nosnippet>125</a> </span><span class="kw">pub fn </span>new(row: Vec<Value>) -> <span class="self">Self </span>{
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<a href=#126 id=126 data-nosnippet>126</a> <span class="self">Self </span>{ inner: row }
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<a href=#127 id=127 data-nosnippet>127</a> }
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<a href=#128 id=128 data-nosnippet>128</a>
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<a href=#129 id=129 data-nosnippet>129</a> <span class="doccomment">/// Get the value at the given index
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<a href=#130 id=130 data-nosnippet>130</a> </span><span class="kw">pub fn </span>get(<span class="kw-2">&</span><span class="self">self</span>, idx: usize) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>Value> {
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<a href=#131 id=131 data-nosnippet>131</a> <span class="self">self</span>.inner.get(idx)
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<a href=#132 id=132 data-nosnippet>132</a> }
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<a href=#133 id=133 data-nosnippet>133</a>
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<a href=#134 id=134 data-nosnippet>134</a> <span class="doccomment">/// Clear the row
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<a href=#135 id=135 data-nosnippet>135</a> </span><span class="kw">pub fn </span>clear(<span class="kw-2">&mut </span><span class="self">self</span>) {
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<a href=#136 id=136 data-nosnippet>136</a> <span class="self">self</span>.inner.clear();
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<a href=#137 id=137 data-nosnippet>137</a> }
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<a href=#138 id=138 data-nosnippet>138</a>
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<a href=#139 id=139 data-nosnippet>139</a> <span class="doccomment">/// clear and return the inner vector
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<a href=#140 id=140 data-nosnippet>140</a> ///
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<a href=#141 id=141 data-nosnippet>141</a> /// useful if you want to reuse the vector as a buffer
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<a href=#142 id=142 data-nosnippet>142</a> </span><span class="kw">pub fn </span>packer(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="kw-2">&mut </span>Vec<Value> {
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<a href=#143 id=143 data-nosnippet>143</a> <span class="self">self</span>.inner.clear();
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<a href=#144 id=144 data-nosnippet>144</a> <span class="kw-2">&mut </span><span class="self">self</span>.inner
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<a href=#145 id=145 data-nosnippet>145</a> }
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<a href=#146 id=146 data-nosnippet>146</a>
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<a href=#147 id=147 data-nosnippet>147</a> <span class="doccomment">/// pack a iterator of values into a row
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<a href=#148 id=148 data-nosnippet>148</a> </span><span class="kw">pub fn </span>pack<I>(iter: I) -> Row
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<a href=#149 id=149 data-nosnippet>149</a> <span class="kw">where
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<a href=#150 id=150 data-nosnippet>150</a> </span>I: IntoIterator<Item = Value>,
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<a href=#151 id=151 data-nosnippet>151</a> {
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<a href=#152 id=152 data-nosnippet>152</a> <span class="self">Self </span>{
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<a href=#153 id=153 data-nosnippet>153</a> inner: iter.into_iter().collect(),
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<a href=#154 id=154 data-nosnippet>154</a> }
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<a href=#155 id=155 data-nosnippet>155</a> }
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<a href=#156 id=156 data-nosnippet>156</a>
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<a href=#157 id=157 data-nosnippet>157</a> <span class="doccomment">/// unpack a row into a vector of values
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<a href=#158 id=158 data-nosnippet>158</a> </span><span class="kw">pub fn </span>unpack(<span class="self">self</span>) -> Vec<Value> {
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<a href=#159 id=159 data-nosnippet>159</a> <span class="self">self</span>.inner
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<a href=#160 id=160 data-nosnippet>160</a> }
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<a href=#161 id=161 data-nosnippet>161</a>
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<a href=#162 id=162 data-nosnippet>162</a> <span class="doccomment">/// extend the row with values from an iterator
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<a href=#163 id=163 data-nosnippet>163</a> </span><span class="kw">pub fn </span>extend<I>(<span class="kw-2">&mut </span><span class="self">self</span>, iter: I)
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<a href=#164 id=164 data-nosnippet>164</a> <span class="kw">where
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<a href=#165 id=165 data-nosnippet>165</a> </span>I: IntoIterator<Item = Value>,
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<a href=#166 id=166 data-nosnippet>166</a> {
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<a href=#167 id=167 data-nosnippet>167</a> <span class="self">self</span>.inner.extend(iter);
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<a href=#168 id=168 data-nosnippet>168</a> }
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<a href=#169 id=169 data-nosnippet>169</a>
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<a href=#170 id=170 data-nosnippet>170</a> <span class="doccomment">/// Creates a consuming iterator, that is, one that moves each value out of the `Row` (from start to end). The `Row` cannot be used after calling this
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<a href=#171 id=171 data-nosnippet>171</a> </span><span class="kw">pub fn </span>into_iter(<span class="self">self</span>) -> <span class="kw">impl </span>Iterator<Item = Value> {
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<a href=#172 id=172 data-nosnippet>172</a> <span class="self">self</span>.inner.into_iter()
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<a href=#173 id=173 data-nosnippet>173</a> }
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<a href=#174 id=174 data-nosnippet>174</a>
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<a href=#175 id=175 data-nosnippet>175</a> <span class="doccomment">/// Returns an iterator over the slice.
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<a href=#176 id=176 data-nosnippet>176</a> </span><span class="kw">pub fn </span>iter(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw">impl </span>Iterator<Item = <span class="kw-2">&</span>Value> {
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<a href=#177 id=177 data-nosnippet>177</a> <span class="self">self</span>.inner.iter()
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<a href=#178 id=178 data-nosnippet>178</a> }
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<a href=#179 id=179 data-nosnippet>179</a>
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<a href=#180 id=180 data-nosnippet>180</a> <span class="doccomment">/// Returns the number of elements in the row, also known as its 'length'.
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<a href=#181 id=181 data-nosnippet>181</a> </span><span class="kw">pub fn </span>len(<span class="kw-2">&</span><span class="self">self</span>) -> usize {
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<a href=#182 id=182 data-nosnippet>182</a> <span class="self">self</span>.inner.len()
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<a href=#183 id=183 data-nosnippet>183</a> }
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<a href=#184 id=184 data-nosnippet>184</a>}
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<a href=#185 id=185 data-nosnippet>185</a>
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<a href=#186 id=186 data-nosnippet>186</a><span class="kw">impl </span>From<Vec<Value>> <span class="kw">for </span>Row {
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<a href=#187 id=187 data-nosnippet>187</a> <span class="kw">fn </span>from(row: Vec<Value>) -> <span class="self">Self </span>{
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<a href=#188 id=188 data-nosnippet>188</a> Row::new(row)
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<a href=#189 id=189 data-nosnippet>189</a> }
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<a href=#190 id=190 data-nosnippet>190</a>}
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<a href=#191 id=191 data-nosnippet>191</a>
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<a href=#192 id=192 data-nosnippet>192</a><span class="kw">impl </span>From<ProtoRow> <span class="kw">for </span>Row {
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<a href=#193 id=193 data-nosnippet>193</a> <span class="kw">fn </span>from(row: ProtoRow) -> <span class="self">Self </span>{
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<a href=#194 id=194 data-nosnippet>194</a> Row::pack(
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<a href=#195 id=195 data-nosnippet>195</a> row.values
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<a href=#196 id=196 data-nosnippet>196</a> .iter()
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<a href=#197 id=197 data-nosnippet>197</a> .map(|pb_val| -> Value { pb_value_to_value_ref(pb_val, <span class="prelude-val">None</span>).into() }),
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<a href=#198 id=198 data-nosnippet>198</a> )
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<a href=#199 id=199 data-nosnippet>199</a> }
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<a href=#200 id=200 data-nosnippet>200</a>}
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<a href=#201 id=201 data-nosnippet>201</a>
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<a href=#202 id=202 data-nosnippet>202</a><span class="kw">impl </span>From<Row> <span class="kw">for </span>ProtoRow {
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<a href=#203 id=203 data-nosnippet>203</a> <span class="kw">fn </span>from(row: Row) -> <span class="self">Self </span>{
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<a href=#204 id=204 data-nosnippet>204</a> <span class="kw">let </span>values = row.unpack().into_iter().map(to_grpc_value).collect_vec();
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<a href=#205 id=205 data-nosnippet>205</a> ProtoRow { values }
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<a href=#206 id=206 data-nosnippet>206</a> }
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<a href=#207 id=207 data-nosnippet>207</a>}
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<a href=#208 id=208 data-nosnippet>208</a><span class="attr">#[cfg(test)]
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<a href=#209 id=209 data-nosnippet>209</a></span><span class="kw">mod </span>test {
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<a href=#210 id=210 data-nosnippet>210</a> <span class="kw">use </span>common_time::{Date, Timestamp};
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<a href=#211 id=211 data-nosnippet>211</a>
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<a href=#212 id=212 data-nosnippet>212</a> <span class="kw">use super</span>::<span class="kw-2">*</span>;
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<a href=#213 id=213 data-nosnippet>213</a>
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<a href=#214 id=214 data-nosnippet>214</a> <span class="attr">#[test]
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<a href=#215 id=215 data-nosnippet>215</a> </span><span class="kw">fn </span>test_row() {
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<a href=#216 id=216 data-nosnippet>216</a> <span class="kw">let </span>row = Row::empty();
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<a href=#217 id=217 data-nosnippet>217</a> <span class="kw">let </span>row_1 = Row::new(<span class="macro">vec!</span>[]);
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<a href=#218 id=218 data-nosnippet>218</a> <span class="macro">assert_eq!</span>(row, row_1);
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<a href=#219 id=219 data-nosnippet>219</a> <span class="kw">let </span><span class="kw-2">mut </span>row_2 = Row::new(<span class="macro">vec!</span>[Value::Int32(<span class="number">1</span>), Value::Int32(<span class="number">2</span>)]);
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<a href=#220 id=220 data-nosnippet>220</a> <span class="macro">assert_eq!</span>(row_2.get(<span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="kw-2">&</span>Value::Int32(<span class="number">1</span>)));
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<a href=#221 id=221 data-nosnippet>221</a> row_2.clear();
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<a href=#222 id=222 data-nosnippet>222</a> <span class="macro">assert_eq!</span>(row_2.get(<span class="number">0</span>), <span class="prelude-val">None</span>);
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<a href=#223 id=223 data-nosnippet>223</a> row_2
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<a href=#224 id=224 data-nosnippet>224</a> .packer()
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<a href=#225 id=225 data-nosnippet>225</a> .extend(<span class="macro">vec!</span>[Value::Int32(<span class="number">1</span>), Value::Int32(<span class="number">2</span>)]);
|
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<a href=#226 id=226 data-nosnippet>226</a> <span class="macro">assert_eq!</span>(row_2.get(<span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="kw-2">&</span>Value::Int32(<span class="number">1</span>)));
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<a href=#227 id=227 data-nosnippet>227</a> row_2.extend(<span class="macro">vec!</span>[Value::Int32(<span class="number">1</span>), Value::Int32(<span class="number">2</span>)]);
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<a href=#228 id=228 data-nosnippet>228</a> <span class="macro">assert_eq!</span>(row_2.len(), <span class="number">4</span>);
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<a href=#229 id=229 data-nosnippet>229</a> <span class="kw">let </span>row_3 = Row::pack(row_2.into_iter());
|
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<a href=#230 id=230 data-nosnippet>230</a> <span class="macro">assert_eq!</span>(row_3.len(), <span class="number">4</span>);
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<a href=#231 id=231 data-nosnippet>231</a> <span class="kw">let </span>row_4 = Row::pack(row_3.iter().cloned());
|
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<a href=#232 id=232 data-nosnippet>232</a> <span class="macro">assert_eq!</span>(row_3, row_4);
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<a href=#233 id=233 data-nosnippet>233</a> }
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<a href=#234 id=234 data-nosnippet>234</a>
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<a href=#235 id=235 data-nosnippet>235</a> <span class="attr">#[test]
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<a href=#236 id=236 data-nosnippet>236</a> </span><span class="kw">fn </span>test_cast_to_internal_ts() {
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<a href=#237 id=237 data-nosnippet>237</a> {
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<a href=#238 id=238 data-nosnippet>238</a> <span class="kw">let </span>a = Value::from(<span class="number">1i32</span>);
|
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<a href=#239 id=239 data-nosnippet>239</a> <span class="kw">let </span>b = Value::from(<span class="number">1i64</span>);
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|
<a href=#240 id=240 data-nosnippet>240</a> <span class="kw">let </span>c = Value::Timestamp(Timestamp::new_millisecond(<span class="number">1i64</span>));
|
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<a href=#241 id=241 data-nosnippet>241</a> <span class="kw">let </span>d = Value::from(<span class="number">1.0</span>);
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<a href=#242 id=242 data-nosnippet>242</a>
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<a href=#243 id=243 data-nosnippet>243</a> <span class="macro">assert!</span>(value_to_internal_ts(a).is_err());
|
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<a href=#244 id=244 data-nosnippet>244</a> <span class="macro">assert_eq!</span>(value_to_internal_ts(b).unwrap(), <span class="number">1i64</span>);
|
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<a href=#245 id=245 data-nosnippet>245</a> <span class="macro">assert_eq!</span>(value_to_internal_ts(c).unwrap(), <span class="number">1i64</span>);
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<a href=#246 id=246 data-nosnippet>246</a> <span class="macro">assert!</span>(value_to_internal_ts(d).is_err());
|
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<a href=#247 id=247 data-nosnippet>247</a> }
|
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<a href=#248 id=248 data-nosnippet>248</a>
|
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<a href=#249 id=249 data-nosnippet>249</a> {
|
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<a href=#250 id=250 data-nosnippet>250</a> <span class="comment">// time related type
|
|
<a href=#251 id=251 data-nosnippet>251</a> </span><span class="kw">let </span>a = Value::Date(Date::new(<span class="number">1</span>));
|
|
<a href=#252 id=252 data-nosnippet>252</a> <span class="macro">assert_eq!</span>(value_to_internal_ts(a).unwrap(), <span class="number">86400 </span>* <span class="number">1000i64</span>);
|
|
<a href=#253 id=253 data-nosnippet>253</a> <span class="kw">let </span>b = Value::Timestamp(common_time::Timestamp::new_second(<span class="number">1</span>));
|
|
<a href=#254 id=254 data-nosnippet>254</a> <span class="macro">assert_eq!</span>(value_to_internal_ts(b).unwrap(), <span class="number">1000i64</span>);
|
|
<a href=#255 id=255 data-nosnippet>255</a> <span class="kw">let </span>c = Value::Time(common_time::time::Time::new_second(<span class="number">1</span>));
|
|
<a href=#256 id=256 data-nosnippet>256</a> <span class="macro">assert!</span>(<span class="macro">matches!</span>(
|
|
<a href=#257 id=257 data-nosnippet>257</a> value_to_internal_ts(c),
|
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<a href=#258 id=258 data-nosnippet>258</a> <span class="prelude-val">Err</span>(EvalError::InvalidArgument { .. })
|
|
<a href=#259 id=259 data-nosnippet>259</a> ));
|
|
<a href=#260 id=260 data-nosnippet>260</a> }
|
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<a href=#261 id=261 data-nosnippet>261</a> }
|
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<a href=#262 id=262 data-nosnippet>262</a>}</code></pre></div></section></main></body></html> |