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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/servers/src/http/result/table_result.rs`."><title>table_result.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="servers" 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">servers/http/result/</div>table_result.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="kw">use </span>std::cmp::max;
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<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>std::fmt::{Display, Write};
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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 class="kw">use </span>axum::http::{HeaderValue, header};
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<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>axum::response::{IntoResponse, Response};
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<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>common_error::status_code::StatusCode;
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<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>common_query::Output;
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<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>itertools::Itertools;
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<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>mime_guess::mime;
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<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>serde::{Deserialize, Serialize};
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<a href=#25 id=25 data-nosnippet>25</a>
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<a href=#26 id=26 data-nosnippet>26</a><span class="kw">use </span><span class="kw">crate</span>::http::header::{GREPTIME_DB_HEADER_EXECUTION_TIME, GREPTIME_DB_HEADER_FORMAT};
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<a href=#27 id=27 data-nosnippet>27</a><span class="kw">use </span><span class="kw">crate</span>::http::result::error_result::ErrorResponse;
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<a href=#28 id=28 data-nosnippet>28</a><span class="kw">use </span><span class="kw">crate</span>::http::{GreptimeQueryOutput, HttpResponse, ResponseFormat, handler, process_with_limit};
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<a href=#29 id=29 data-nosnippet>29</a>
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<a href=#30 id=30 data-nosnippet>30</a><span class="attr">#[derive(Serialize, Deserialize, Debug)]
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<a href=#31 id=31 data-nosnippet>31</a></span><span class="kw">pub struct </span>TableResponse {
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<a href=#32 id=32 data-nosnippet>32</a> output: Vec<GreptimeQueryOutput>,
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<a href=#33 id=33 data-nosnippet>33</a> execution_time_ms: u64,
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<a href=#34 id=34 data-nosnippet>34</a>}
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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><span class="kw">impl </span>TableResponse {
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<a href=#37 id=37 data-nosnippet>37</a> <span class="kw">pub async fn </span>from_output(outputs: Vec<<span class="kw">crate</span>::error::Result<Output>>) -> HttpResponse {
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<a href=#38 id=38 data-nosnippet>38</a> <span class="kw">match </span>handler::from_output(outputs).<span class="kw">await </span>{
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<a href=#39 id=39 data-nosnippet>39</a> <span class="prelude-val">Err</span>(err) => HttpResponse::Error(err),
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<a href=#40 id=40 data-nosnippet>40</a> <span class="prelude-val">Ok</span>((output, <span class="kw">_</span>)) => {
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<a href=#41 id=41 data-nosnippet>41</a> <span class="kw">if </span>output.len() > <span class="number">1 </span>{
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<a href=#42 id=42 data-nosnippet>42</a> HttpResponse::Error(ErrorResponse::from_error_message(
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<a href=#43 id=43 data-nosnippet>43</a> StatusCode::InvalidArguments,
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<a href=#44 id=44 data-nosnippet>44</a> <span class="string">"cannot output multi-statements result in table format"</span>.to_string(),
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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="kw">else </span>{
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<a href=#47 id=47 data-nosnippet>47</a> HttpResponse::Table(TableResponse {
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<a href=#48 id=48 data-nosnippet>48</a> output,
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<a href=#49 id=49 data-nosnippet>49</a> execution_time_ms: <span class="number">0</span>,
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<a href=#50 id=50 data-nosnippet>50</a> })
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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> }
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<a href=#53 id=53 data-nosnippet>53</a> }
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<a href=#54 id=54 data-nosnippet>54</a> }
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<a href=#55 id=55 data-nosnippet>55</a>
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<a href=#56 id=56 data-nosnippet>56</a> <span class="kw">pub fn </span>output(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>[GreptimeQueryOutput] {
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<a href=#57 id=57 data-nosnippet>57</a> <span class="kw-2">&</span><span class="self">self</span>.output
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<a href=#58 id=58 data-nosnippet>58</a> }
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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="kw">pub fn </span>with_execution_time(<span class="kw-2">mut </span><span class="self">self</span>, execution_time: u64) -> <span class="self">Self </span>{
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<a href=#61 id=61 data-nosnippet>61</a> <span class="self">self</span>.execution_time_ms = execution_time;
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<a href=#62 id=62 data-nosnippet>62</a> <span class="self">self
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<a href=#63 id=63 data-nosnippet>63</a> </span>}
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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> <span class="kw">pub fn </span>execution_time_ms(<span class="kw-2">&</span><span class="self">self</span>) -> u64 {
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<a href=#66 id=66 data-nosnippet>66</a> <span class="self">self</span>.execution_time_ms
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<a href=#67 id=67 data-nosnippet>67</a> }
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<a href=#68 id=68 data-nosnippet>68</a>
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<a href=#69 id=69 data-nosnippet>69</a> <span class="kw">pub fn </span>with_limit(<span class="kw-2">mut </span><span class="self">self</span>, limit: usize) -> <span class="self">Self </span>{
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<a href=#70 id=70 data-nosnippet>70</a> <span class="self">self</span>.output = process_with_limit(<span class="self">self</span>.output, limit);
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<a href=#71 id=71 data-nosnippet>71</a> <span class="self">self
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<a href=#72 id=72 data-nosnippet>72</a> </span>}
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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>
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<a href=#75 id=75 data-nosnippet>75</a><span class="kw">impl </span>Display <span class="kw">for </span>TableResponse {
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<a href=#76 id=76 data-nosnippet>76</a> <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>std::fmt::Formatter<<span class="lifetime">'_</span>>) -> std::fmt::Result {
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<a href=#77 id=77 data-nosnippet>77</a> <span class="kw">let </span>payload = <span class="kw">match </span><span class="self">self</span>.output.first() {
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<a href=#78 id=78 data-nosnippet>78</a> <span class="prelude-val">None </span>=> String::default(),
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<a href=#79 id=79 data-nosnippet>79</a> <span class="prelude-val">Some</span>(GreptimeQueryOutput::AffectedRows(n)) => {
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<a href=#80 id=80 data-nosnippet>80</a> <span class="macro">format!</span>(<span class="string">"{n}\n"</span>)
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<a href=#81 id=81 data-nosnippet>81</a> }
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<a href=#82 id=82 data-nosnippet>82</a> <span class="prelude-val">Some</span>(GreptimeQueryOutput::Records(records)) => {
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<a href=#83 id=83 data-nosnippet>83</a> <span class="kw">let </span><span class="kw-2">mut </span>max_width = <span class="macro">vec!</span>[<span class="number">0</span>; records.num_cols()];
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<a href=#84 id=84 data-nosnippet>84</a> <span class="kw">let </span><span class="kw-2">mut </span>result = String::new();
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<a href=#85 id=85 data-nosnippet>85</a> <span class="comment">// Determine maximum width for each column
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<a href=#86 id=86 data-nosnippet>86</a> </span><span class="kw">for </span>(i, column) <span class="kw">in </span>records.schema.column_schemas.iter().enumerate() {
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<a href=#87 id=87 data-nosnippet>87</a> max_width[i] = max(max_width[i], column.name.len());
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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> <span class="kw">for </span>row <span class="kw">in </span><span class="kw-2">&</span>records.rows {
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<a href=#90 id=90 data-nosnippet>90</a> <span class="kw">for </span>(i, v) <span class="kw">in </span>row.iter().enumerate() {
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<a href=#91 id=91 data-nosnippet>91</a> <span class="kw">let </span>s = v.to_string();
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<a href=#92 id=92 data-nosnippet>92</a> max_width[i] = max(max_width[i], s.len());
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<a href=#93 id=93 data-nosnippet>93</a> }
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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> <span class="comment">// Construct the header
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<a href=#97 id=97 data-nosnippet>97</a> </span><span class="kw">let </span>head: String = records
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<a href=#98 id=98 data-nosnippet>98</a> .schema
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<a href=#99 id=99 data-nosnippet>99</a> .column_schemas
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<a href=#100 id=100 data-nosnippet>100</a> .iter()
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<a href=#101 id=101 data-nosnippet>101</a> .enumerate()
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<a href=#102 id=102 data-nosnippet>102</a> .map(|(i, column)| <span class="macro">format!</span>(<span class="string">"─{:─<1$}─"</span>, column.name, max_width[i]))
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<a href=#103 id=103 data-nosnippet>103</a> .join(<span class="string">"┬"</span>);
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<a href=#104 id=104 data-nosnippet>104</a> <span class="macro">writeln!</span>(result, <span class="string">"┌{}┐"</span>, head).unwrap();
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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> <span class="comment">// Construct rows
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<a href=#107 id=107 data-nosnippet>107</a> </span><span class="kw">for </span>row <span class="kw">in </span><span class="kw-2">&</span>records.rows {
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<a href=#108 id=108 data-nosnippet>108</a> <span class="kw">let </span>row = row
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<a href=#109 id=109 data-nosnippet>109</a> .iter()
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<a href=#110 id=110 data-nosnippet>110</a> .enumerate()
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<a href=#111 id=111 data-nosnippet>111</a> .map(|(i, v)| {
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<a href=#112 id=112 data-nosnippet>112</a> <span class="kw">let </span>s = v.to_string();
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<a href=#113 id=113 data-nosnippet>113</a> <span class="macro">format!</span>(<span class="string">" {:1$} "</span>, s, max_width[i])
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<a href=#114 id=114 data-nosnippet>114</a> })
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<a href=#115 id=115 data-nosnippet>115</a> .join(<span class="string">"│"</span>);
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<a href=#116 id=116 data-nosnippet>116</a> <span class="macro">writeln!</span>(result, <span class="string">"│{row}│"</span>).unwrap();
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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="comment">// Construct the footer
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<a href=#120 id=120 data-nosnippet>120</a> </span><span class="kw">let </span>footer: String = max_width.iter().map(|v| <span class="string">"─"</span>.repeat(<span class="kw-2">*</span>v + <span class="number">2</span>)).join(<span class="string">"┴"</span>);
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<a href=#121 id=121 data-nosnippet>121</a> <span class="macro">writeln!</span>(result, <span class="string">"└{}┘"</span>, footer).unwrap();
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<a href=#122 id=122 data-nosnippet>122</a> result
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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> };
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<a href=#125 id=125 data-nosnippet>125</a> <span class="macro">write!</span>(f, <span class="string">"{}"</span>, payload)
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<a href=#126 id=126 data-nosnippet>126</a> }
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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="kw">impl </span>IntoResponse <span class="kw">for </span>TableResponse {
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<a href=#130 id=130 data-nosnippet>130</a> <span class="kw">fn </span>into_response(<span class="self">self</span>) -> Response {
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<a href=#131 id=131 data-nosnippet>131</a> <span class="macro">debug_assert!</span>(
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<a href=#132 id=132 data-nosnippet>132</a> <span class="self">self</span>.output.len() <= <span class="number">1</span>,
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<a href=#133 id=133 data-nosnippet>133</a> <span class="string">"self.output has extra elements: {}"</span>,
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<a href=#134 id=134 data-nosnippet>134</a> <span class="self">self</span>.output.len()
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<a href=#135 id=135 data-nosnippet>135</a> );
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<a href=#136 id=136 data-nosnippet>136</a>
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<a href=#137 id=137 data-nosnippet>137</a> <span class="kw">let </span>execution_time = <span class="self">self</span>.execution_time_ms;
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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="kw">let </span><span class="kw-2">mut </span>resp = (
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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> header::CONTENT_TYPE,
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<a href=#142 id=142 data-nosnippet>142</a> HeaderValue::from_static(mime::TEXT_PLAIN_UTF_8.as_ref()),
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<a href=#143 id=143 data-nosnippet>143</a> )],
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<a href=#144 id=144 data-nosnippet>144</a> <span class="self">self</span>.to_string(),
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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> .into_response();
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<a href=#147 id=147 data-nosnippet>147</a> resp.headers_mut().insert(
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<a href=#148 id=148 data-nosnippet>148</a> <span class="kw-2">&</span>GREPTIME_DB_HEADER_FORMAT,
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<a href=#149 id=149 data-nosnippet>149</a> HeaderValue::from_static(ResponseFormat::Table.as_str()),
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<a href=#150 id=150 data-nosnippet>150</a> );
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<a href=#151 id=151 data-nosnippet>151</a> resp.headers_mut().insert(
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<a href=#152 id=152 data-nosnippet>152</a> <span class="kw-2">&</span>GREPTIME_DB_HEADER_EXECUTION_TIME,
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<a href=#153 id=153 data-nosnippet>153</a> HeaderValue::from(execution_time),
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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> resp
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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>}
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<a href=#158 id=158 data-nosnippet>158</a><span class="attr">#[cfg(test)]
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<a href=#159 id=159 data-nosnippet>159</a></span><span class="kw">mod </span>test {
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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> <span class="kw">use </span><span class="kw">super</span>::TableResponse;
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<a href=#162 id=162 data-nosnippet>162</a>
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<a href=#163 id=163 data-nosnippet>163</a> <span class="attr">#[tokio::test]
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<a href=#164 id=164 data-nosnippet>164</a> </span><span class="kw">async fn </span>test_table_format() {
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<a href=#165 id=165 data-nosnippet>165</a> <span class="kw">let </span>data = <span class="string">r#"{"output":[{"records":{"schema":{"column_schemas":[{"name":"host","data_type":"String"},{"name":"ts","data_type":"TimestampMillisecond"},{"name":"cpu","data_type":"Float64"},{"name":"memory","data_type":"Float64"}]},"rows":[["127.0.0.1",1702433141000,0.5,0.2],["127.0.0.1",1702433146000,0.3,0.2],["127.0.0.1",1702433151000,0.4,0.3],["127.0.0.2",1702433141000,0.3,0.1],["127.0.0.2",1702433146000,0.2,0.4],["127.0.0.2",1702433151000,0.2,0.4]]}}],"execution_time_ms":13}"#</span>;
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<a href=#166 id=166 data-nosnippet>166</a> <span class="kw">let </span>table_response: TableResponse = serde_json::from_str(data).unwrap();
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<a href=#167 id=167 data-nosnippet>167</a> <span class="kw">let </span>payload = table_response.to_string();
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<a href=#168 id=168 data-nosnippet>168</a> <span class="kw">let </span>expected_payload = <span class="string">r#"┌─host────────┬─ts────────────┬─cpu─┬─memory─┐
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<a href=#169 id=169 data-nosnippet>169</a>│ "127.0.0.1" │ 1702433141000 │ 0.5 │ 0.2 │
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<a href=#170 id=170 data-nosnippet>170</a>│ "127.0.0.1" │ 1702433146000 │ 0.3 │ 0.2 │
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<a href=#171 id=171 data-nosnippet>171</a>│ "127.0.0.1" │ 1702433151000 │ 0.4 │ 0.3 │
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<a href=#172 id=172 data-nosnippet>172</a>│ "127.0.0.2" │ 1702433141000 │ 0.3 │ 0.1 │
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<a href=#173 id=173 data-nosnippet>173</a>│ "127.0.0.2" │ 1702433146000 │ 0.2 │ 0.4 │
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<a href=#174 id=174 data-nosnippet>174</a>│ "127.0.0.2" │ 1702433151000 │ 0.2 │ 0.4 │
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<a href=#175 id=175 data-nosnippet>175</a>└─────────────┴───────────────┴─────┴────────┘
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<a href=#176 id=176 data-nosnippet>176</a>"#</span>;
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<a href=#177 id=177 data-nosnippet>177</a> <span class="macro">assert_eq!</span>(payload, expected_payload);
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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>}</code></pre></div></section></main></body></html> |