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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/catalog/src/system_schema/information_schema.rs`."><title>information_schema.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-17e0aaed.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="catalog" data-themes="" data-resource-suffix="" data-rustdoc-version="1.96.0-nightly (ac7f9ec7d 2026-03-20)" data-channel="nightly" data-search-js="search-63369b7b.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">catalog/system_schema/</div>information_schema.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-3"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
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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">mod </span>cluster_info;
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<a href=#16 id=16 data-nosnippet>16</a><span class="kw">pub mod </span>columns;
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<a href=#17 id=17 data-nosnippet>17</a><span class="kw">pub mod </span>flows;
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<a href=#18 id=18 data-nosnippet>18</a><span class="kw">mod </span>information_memory_table;
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<a href=#19 id=19 data-nosnippet>19</a><span class="kw">pub mod </span>key_column_usage;
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<a href=#20 id=20 data-nosnippet>20</a><span class="kw">mod </span>partitions;
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<a href=#21 id=21 data-nosnippet>21</a><span class="kw">mod </span>procedure_info;
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<a href=#22 id=22 data-nosnippet>22</a><span class="kw">pub mod </span>process_list;
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<a href=#23 id=23 data-nosnippet>23</a><span class="kw">pub mod </span>region_peers;
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<a href=#24 id=24 data-nosnippet>24</a><span class="kw">mod </span>region_statistics;
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<a href=#25 id=25 data-nosnippet>25</a><span class="kw">pub mod </span>schemata;
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<a href=#26 id=26 data-nosnippet>26</a><span class="kw">mod </span>ssts;
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<a href=#27 id=27 data-nosnippet>27</a><span class="kw">mod </span>table_constraints;
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<a href=#28 id=28 data-nosnippet>28</a><span class="kw">mod </span>table_names;
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<a href=#29 id=29 data-nosnippet>29</a><span class="kw">pub mod </span>tables;
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<a href=#30 id=30 data-nosnippet>30</a><span class="kw">mod </span>views;
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<a href=#31 id=31 data-nosnippet>31</a>
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<a href=#32 id=32 data-nosnippet>32</a><span class="kw">use </span>std::collections::HashMap;
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<a href=#33 id=33 data-nosnippet>33</a><span class="kw">use </span>std::sync::{Arc, Weak};
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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><span class="kw">use </span>common_catalog::consts::{<span class="self">self</span>, DEFAULT_CATALOG_NAME, INFORMATION_SCHEMA_NAME};
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<a href=#36 id=36 data-nosnippet>36</a><span class="kw">use </span>common_error::ext::ErrorExt;
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<a href=#37 id=37 data-nosnippet>37</a><span class="kw">use </span>common_meta::cluster::NodeInfo;
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<a href=#38 id=38 data-nosnippet>38</a><span class="kw">use </span>common_meta::datanode::RegionStat;
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<a href=#39 id=39 data-nosnippet>39</a><span class="kw">use </span>common_meta::key::flow::FlowMetadataManager;
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<a href=#40 id=40 data-nosnippet>40</a><span class="kw">use </span>common_meta::key::flow::flow_state::FlowStat;
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<a href=#41 id=41 data-nosnippet>41</a><span class="kw">use </span>common_meta::kv_backend::KvBackendRef;
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<a href=#42 id=42 data-nosnippet>42</a><span class="kw">use </span>common_procedure::ProcedureInfo;
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<a href=#43 id=43 data-nosnippet>43</a><span class="kw">use </span>common_recordbatch::SendableRecordBatchStream;
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<a href=#44 id=44 data-nosnippet>44</a><span class="kw">use </span>datafusion::error::DataFusionError;
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<a href=#45 id=45 data-nosnippet>45</a><span class="kw">use </span>datafusion::logical_expr::LogicalPlan;
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<a href=#46 id=46 data-nosnippet>46</a><span class="kw">use </span>datatypes::schema::SchemaRef;
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<a href=#47 id=47 data-nosnippet>47</a><span class="kw">use </span>lazy_static::lazy_static;
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<a href=#48 id=48 data-nosnippet>48</a><span class="kw">use </span>paste::paste;
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<a href=#49 id=49 data-nosnippet>49</a><span class="kw">use </span>process_list::InformationSchemaProcessList;
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<a href=#50 id=50 data-nosnippet>50</a><span class="kw">use </span>store_api::sst_entry::{ManifestSstEntry, PuffinIndexMetaEntry, StorageSstEntry};
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<a href=#51 id=51 data-nosnippet>51</a><span class="kw">use </span>store_api::storage::{ScanRequest, TableId};
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<a href=#52 id=52 data-nosnippet>52</a><span class="kw">use </span>table::TableRef;
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<a href=#53 id=53 data-nosnippet>53</a><span class="kw">use </span>table::metadata::TableType;
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<a href=#54 id=54 data-nosnippet>54</a><span class="kw">pub use </span>table_names::<span class="kw-2">*</span>;
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<a href=#55 id=55 data-nosnippet>55</a><span class="kw">use </span>views::InformationSchemaViews;
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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="kw">use </span><span class="self">self</span>::columns::InformationSchemaColumns;
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<a href=#58 id=58 data-nosnippet>58</a><span class="kw">use </span><span class="kw">crate</span>::CatalogManager;
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<a href=#59 id=59 data-nosnippet>59</a><span class="kw">use </span><span class="kw">crate</span>::error::{Error, <span class="prelude-ty">Result</span>};
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<a href=#60 id=60 data-nosnippet>60</a><span class="kw">use </span><span class="kw">crate</span>::process_manager::ProcessManagerRef;
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<a href=#61 id=61 data-nosnippet>61</a><span class="kw">use </span><span class="kw">crate</span>::system_schema::information_schema::cluster_info::InformationSchemaClusterInfo;
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<a href=#62 id=62 data-nosnippet>62</a><span class="kw">use </span><span class="kw">crate</span>::system_schema::information_schema::flows::InformationSchemaFlows;
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<a href=#63 id=63 data-nosnippet>63</a><span class="kw">use </span><span class="kw">crate</span>::system_schema::information_schema::information_memory_table::get_schema_columns;
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<a href=#64 id=64 data-nosnippet>64</a><span class="kw">use </span><span class="kw">crate</span>::system_schema::information_schema::key_column_usage::InformationSchemaKeyColumnUsage;
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<a href=#65 id=65 data-nosnippet>65</a><span class="kw">use </span><span class="kw">crate</span>::system_schema::information_schema::partitions::InformationSchemaPartitions;
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<a href=#66 id=66 data-nosnippet>66</a><span class="kw">use </span><span class="kw">crate</span>::system_schema::information_schema::region_peers::InformationSchemaRegionPeers;
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<a href=#67 id=67 data-nosnippet>67</a><span class="kw">use </span><span class="kw">crate</span>::system_schema::information_schema::schemata::InformationSchemaSchemata;
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<a href=#68 id=68 data-nosnippet>68</a><span class="kw">use </span><span class="kw">crate</span>::system_schema::information_schema::ssts::{
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<a href=#69 id=69 data-nosnippet>69</a> InformationSchemaSstsIndexMeta, InformationSchemaSstsManifest, InformationSchemaSstsStorage,
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<a href=#70 id=70 data-nosnippet>70</a>};
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<a href=#71 id=71 data-nosnippet>71</a><span class="kw">use </span><span class="kw">crate</span>::system_schema::information_schema::table_constraints::InformationSchemaTableConstraints;
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<a href=#72 id=72 data-nosnippet>72</a><span class="kw">use </span><span class="kw">crate</span>::system_schema::information_schema::tables::InformationSchemaTables;
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<a href=#73 id=73 data-nosnippet>73</a><span class="kw">use </span><span class="kw">crate</span>::system_schema::memory_table::MemoryTable;
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<a href=#74 id=74 data-nosnippet>74</a><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span><span class="kw">crate</span>::system_schema::predicate::Predicates;
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<a href=#75 id=75 data-nosnippet>75</a><span class="kw">use </span><span class="kw">crate</span>::system_schema::{
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<a href=#76 id=76 data-nosnippet>76</a> SystemSchemaProvider, SystemSchemaProviderInner, SystemTable, SystemTableRef,
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<a href=#77 id=77 data-nosnippet>77</a>};
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<a href=#78 id=78 data-nosnippet>78</a>
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<a href=#79 id=79 data-nosnippet>79</a><span class="macro">lazy_static!</span> {
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<a href=#80 id=80 data-nosnippet>80</a> <span class="comment">// Memory tables in `information_schema`.
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<a href=#81 id=81 data-nosnippet>81</a> </span><span class="kw">static </span><span class="kw-2">ref </span>MEMORY_TABLES: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str] = <span class="kw-2">&</span>[
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<a href=#82 id=82 data-nosnippet>82</a> ENGINES,
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<a href=#83 id=83 data-nosnippet>83</a> COLUMN_PRIVILEGES,
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<a href=#84 id=84 data-nosnippet>84</a> COLUMN_STATISTICS,
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<a href=#85 id=85 data-nosnippet>85</a> CHARACTER_SETS,
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<a href=#86 id=86 data-nosnippet>86</a> COLLATIONS,
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<a href=#87 id=87 data-nosnippet>87</a> COLLATION_CHARACTER_SET_APPLICABILITY,
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<a href=#88 id=88 data-nosnippet>88</a> CHECK_CONSTRAINTS,
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<a href=#89 id=89 data-nosnippet>89</a> EVENTS,
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<a href=#90 id=90 data-nosnippet>90</a> FILES,
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<a href=#91 id=91 data-nosnippet>91</a> OPTIMIZER_TRACE,
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<a href=#92 id=92 data-nosnippet>92</a> PARAMETERS,
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<a href=#93 id=93 data-nosnippet>93</a> PROFILING,
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<a href=#94 id=94 data-nosnippet>94</a> REFERENTIAL_CONSTRAINTS,
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<a href=#95 id=95 data-nosnippet>95</a> ROUTINES,
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<a href=#96 id=96 data-nosnippet>96</a> SCHEMA_PRIVILEGES,
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<a href=#97 id=97 data-nosnippet>97</a> TABLE_PRIVILEGES,
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<a href=#98 id=98 data-nosnippet>98</a> GLOBAL_STATUS,
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<a href=#99 id=99 data-nosnippet>99</a> SESSION_STATUS,
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<a href=#100 id=100 data-nosnippet>100</a> PARTITIONS,
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<a href=#101 id=101 data-nosnippet>101</a> ];
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<a href=#102 id=102 data-nosnippet>102</a>}
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<a href=#103 id=103 data-nosnippet>103</a>
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<a href=#104 id=104 data-nosnippet>104</a><span class="macro">macro_rules!</span> setup_memory_table {
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<a href=#105 id=105 data-nosnippet>105</a> (<span class="macro-nonterminal">$name</span>: expr) => {
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<a href=#106 id=106 data-nosnippet>106</a> <span class="macro">paste!</span> {
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<a href=#107 id=107 data-nosnippet>107</a> {
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<a href=#108 id=108 data-nosnippet>108</a> <span class="kw">let </span>(schema, columns) = get_schema_columns(<span class="macro-nonterminal">$name</span>);
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<a href=#109 id=109 data-nosnippet>109</a> <span class="prelude-val">Some</span>(Arc::new(MemoryTable::new(
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<a href=#110 id=110 data-nosnippet>110</a> consts::[<INFORMATION_SCHEMA_ <span class="macro-nonterminal">$name </span>_TABLE_ID>],
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<a href=#111 id=111 data-nosnippet>111</a> <span class="macro-nonterminal">$name</span>,
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<a href=#112 id=112 data-nosnippet>112</a> schema,
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<a href=#113 id=113 data-nosnippet>113</a> columns
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<a href=#114 id=114 data-nosnippet>114</a> )) <span class="kw">as _</span>)
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<a href=#115 id=115 data-nosnippet>115</a> }
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<a href=#116 id=116 data-nosnippet>116</a> }
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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>
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<a href=#120 id=120 data-nosnippet>120</a><span class="kw">pub struct </span>MakeInformationTableRequest {
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<a href=#121 id=121 data-nosnippet>121</a> <span class="kw">pub </span>catalog_name: String,
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<a href=#122 id=122 data-nosnippet>122</a> <span class="kw">pub </span>catalog_manager: Weak<<span class="kw">dyn </span>CatalogManager>,
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<a href=#123 id=123 data-nosnippet>123</a> <span class="kw">pub </span>kv_backend: KvBackendRef,
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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>
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<a href=#126 id=126 data-nosnippet>126</a><span class="doccomment">/// A factory trait for making information schema tables.
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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>/// This trait allows for extensibility of the information schema by providing
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<a href=#129 id=129 data-nosnippet>129</a>/// a way to dynamically create custom information schema tables.
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<a href=#130 id=130 data-nosnippet>130</a></span><span class="kw">pub trait </span>InformationSchemaTableFactory {
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<a href=#131 id=131 data-nosnippet>131</a> <span class="kw">fn </span>make_information_table(<span class="kw-2">&</span><span class="self">self</span>, req: MakeInformationTableRequest) -> SystemTableRef;
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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="kw">pub type </span>InformationSchemaTableFactoryRef = Arc<<span class="kw">dyn </span>InformationSchemaTableFactory + Send + Sync>;
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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><span class="doccomment">/// The `information_schema` tables info provider.
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<a href=#137 id=137 data-nosnippet>137</a></span><span class="kw">pub struct </span>InformationSchemaProvider {
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<a href=#138 id=138 data-nosnippet>138</a> catalog_name: String,
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<a href=#139 id=139 data-nosnippet>139</a> catalog_manager: Weak<<span class="kw">dyn </span>CatalogManager>,
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<a href=#140 id=140 data-nosnippet>140</a> process_manager: <span class="prelude-ty">Option</span><ProcessManagerRef>,
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<a href=#141 id=141 data-nosnippet>141</a> flow_metadata_manager: Arc<FlowMetadataManager>,
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<a href=#142 id=142 data-nosnippet>142</a> tables: HashMap<String, TableRef>,
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<a href=#143 id=143 data-nosnippet>143</a> kv_backend: KvBackendRef,
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<a href=#144 id=144 data-nosnippet>144</a> extra_table_factories: HashMap<String, InformationSchemaTableFactoryRef>,
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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="kw">impl </span>SystemSchemaProvider <span class="kw">for </span>InformationSchemaProvider {
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<a href=#148 id=148 data-nosnippet>148</a> <span class="kw">fn </span>tables(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>HashMap<String, TableRef> {
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<a href=#149 id=149 data-nosnippet>149</a> <span class="macro">assert!</span>(!<span class="self">self</span>.tables.is_empty());
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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> <span class="kw-2">&</span><span class="self">self</span>.tables
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<a href=#152 id=152 data-nosnippet>152</a> }
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<a href=#153 id=153 data-nosnippet>153</a>}
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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><span class="kw">impl </span>SystemSchemaProviderInner <span class="kw">for </span>InformationSchemaProvider {
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<a href=#156 id=156 data-nosnippet>156</a> <span class="kw">fn </span>catalog_name(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>str {
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<a href=#157 id=157 data-nosnippet>157</a> <span class="kw-2">&</span><span class="self">self</span>.catalog_name
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<a href=#158 id=158 data-nosnippet>158</a> }
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<a href=#159 id=159 data-nosnippet>159</a> <span class="kw">fn </span>schema_name() -> <span class="kw-2">&</span><span class="lifetime">'static </span>str {
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<a href=#160 id=160 data-nosnippet>160</a> INFORMATION_SCHEMA_NAME
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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>
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<a href=#163 id=163 data-nosnippet>163</a> <span class="kw">fn </span>system_table(<span class="kw-2">&</span><span class="self">self</span>, name: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Option</span><SystemTableRef> {
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<a href=#164 id=164 data-nosnippet>164</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(factory) = <span class="self">self</span>.extra_table_factories.get(name) {
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<a href=#165 id=165 data-nosnippet>165</a> <span class="kw">let </span>req = MakeInformationTableRequest {
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<a href=#166 id=166 data-nosnippet>166</a> catalog_name: <span class="self">self</span>.catalog_name.clone(),
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<a href=#167 id=167 data-nosnippet>167</a> catalog_manager: <span class="self">self</span>.catalog_manager.clone(),
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<a href=#168 id=168 data-nosnippet>168</a> kv_backend: <span class="self">self</span>.kv_backend.clone(),
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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="kw">return </span><span class="prelude-val">Some</span>(factory.make_information_table(req));
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<a href=#171 id=171 data-nosnippet>171</a> }
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<a href=#172 id=172 data-nosnippet>172</a>
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<a href=#173 id=173 data-nosnippet>173</a> <span class="kw">match </span>name.to_ascii_lowercase().as_str() {
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<a href=#174 id=174 data-nosnippet>174</a> TABLES => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaTables::new(
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<a href=#175 id=175 data-nosnippet>175</a> <span class="self">self</span>.catalog_name.clone(),
|
|
<a href=#176 id=176 data-nosnippet>176</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#177 id=177 data-nosnippet>177</a> )) <span class="kw">as _</span>),
|
|
<a href=#178 id=178 data-nosnippet>178</a> COLUMNS => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaColumns::new(
|
|
<a href=#179 id=179 data-nosnippet>179</a> <span class="self">self</span>.catalog_name.clone(),
|
|
<a href=#180 id=180 data-nosnippet>180</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#181 id=181 data-nosnippet>181</a> )) <span class="kw">as _</span>),
|
|
<a href=#182 id=182 data-nosnippet>182</a> ENGINES => <span class="macro">setup_memory_table!</span>(ENGINES),
|
|
<a href=#183 id=183 data-nosnippet>183</a> COLUMN_PRIVILEGES => <span class="macro">setup_memory_table!</span>(COLUMN_PRIVILEGES),
|
|
<a href=#184 id=184 data-nosnippet>184</a> COLUMN_STATISTICS => <span class="macro">setup_memory_table!</span>(COLUMN_STATISTICS),
|
|
<a href=#185 id=185 data-nosnippet>185</a> BUILD_INFO => <span class="macro">setup_memory_table!</span>(BUILD_INFO),
|
|
<a href=#186 id=186 data-nosnippet>186</a> CHARACTER_SETS => <span class="macro">setup_memory_table!</span>(CHARACTER_SETS),
|
|
<a href=#187 id=187 data-nosnippet>187</a> COLLATIONS => <span class="macro">setup_memory_table!</span>(COLLATIONS),
|
|
<a href=#188 id=188 data-nosnippet>188</a> COLLATION_CHARACTER_SET_APPLICABILITY => {
|
|
<a href=#189 id=189 data-nosnippet>189</a> <span class="macro">setup_memory_table!</span>(COLLATION_CHARACTER_SET_APPLICABILITY)
|
|
<a href=#190 id=190 data-nosnippet>190</a> }
|
|
<a href=#191 id=191 data-nosnippet>191</a> CHECK_CONSTRAINTS => <span class="macro">setup_memory_table!</span>(CHECK_CONSTRAINTS),
|
|
<a href=#192 id=192 data-nosnippet>192</a> EVENTS => <span class="macro">setup_memory_table!</span>(EVENTS),
|
|
<a href=#193 id=193 data-nosnippet>193</a> FILES => <span class="macro">setup_memory_table!</span>(FILES),
|
|
<a href=#194 id=194 data-nosnippet>194</a> OPTIMIZER_TRACE => <span class="macro">setup_memory_table!</span>(OPTIMIZER_TRACE),
|
|
<a href=#195 id=195 data-nosnippet>195</a> PARAMETERS => <span class="macro">setup_memory_table!</span>(PARAMETERS),
|
|
<a href=#196 id=196 data-nosnippet>196</a> PROFILING => <span class="macro">setup_memory_table!</span>(PROFILING),
|
|
<a href=#197 id=197 data-nosnippet>197</a> REFERENTIAL_CONSTRAINTS => <span class="macro">setup_memory_table!</span>(REFERENTIAL_CONSTRAINTS),
|
|
<a href=#198 id=198 data-nosnippet>198</a> ROUTINES => <span class="macro">setup_memory_table!</span>(ROUTINES),
|
|
<a href=#199 id=199 data-nosnippet>199</a> SCHEMA_PRIVILEGES => <span class="macro">setup_memory_table!</span>(SCHEMA_PRIVILEGES),
|
|
<a href=#200 id=200 data-nosnippet>200</a> TABLE_PRIVILEGES => <span class="macro">setup_memory_table!</span>(TABLE_PRIVILEGES),
|
|
<a href=#201 id=201 data-nosnippet>201</a> GLOBAL_STATUS => <span class="macro">setup_memory_table!</span>(GLOBAL_STATUS),
|
|
<a href=#202 id=202 data-nosnippet>202</a> SESSION_STATUS => <span class="macro">setup_memory_table!</span>(SESSION_STATUS),
|
|
<a href=#203 id=203 data-nosnippet>203</a> KEY_COLUMN_USAGE => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaKeyColumnUsage::new(
|
|
<a href=#204 id=204 data-nosnippet>204</a> <span class="self">self</span>.catalog_name.clone(),
|
|
<a href=#205 id=205 data-nosnippet>205</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#206 id=206 data-nosnippet>206</a> )) <span class="kw">as _</span>),
|
|
<a href=#207 id=207 data-nosnippet>207</a> SCHEMATA => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaSchemata::new(
|
|
<a href=#208 id=208 data-nosnippet>208</a> <span class="self">self</span>.catalog_name.clone(),
|
|
<a href=#209 id=209 data-nosnippet>209</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#210 id=210 data-nosnippet>210</a> )) <span class="kw">as _</span>),
|
|
<a href=#211 id=211 data-nosnippet>211</a> PARTITIONS => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaPartitions::new(
|
|
<a href=#212 id=212 data-nosnippet>212</a> <span class="self">self</span>.catalog_name.clone(),
|
|
<a href=#213 id=213 data-nosnippet>213</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#214 id=214 data-nosnippet>214</a> )) <span class="kw">as _</span>),
|
|
<a href=#215 id=215 data-nosnippet>215</a> REGION_PEERS => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaRegionPeers::new(
|
|
<a href=#216 id=216 data-nosnippet>216</a> <span class="self">self</span>.catalog_name.clone(),
|
|
<a href=#217 id=217 data-nosnippet>217</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#218 id=218 data-nosnippet>218</a> )) <span class="kw">as _</span>),
|
|
<a href=#219 id=219 data-nosnippet>219</a> TABLE_CONSTRAINTS => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaTableConstraints::new(
|
|
<a href=#220 id=220 data-nosnippet>220</a> <span class="self">self</span>.catalog_name.clone(),
|
|
<a href=#221 id=221 data-nosnippet>221</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#222 id=222 data-nosnippet>222</a> )) <span class="kw">as _</span>),
|
|
<a href=#223 id=223 data-nosnippet>223</a> CLUSTER_INFO => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaClusterInfo::new(
|
|
<a href=#224 id=224 data-nosnippet>224</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#225 id=225 data-nosnippet>225</a> )) <span class="kw">as _</span>),
|
|
<a href=#226 id=226 data-nosnippet>226</a> VIEWS => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaViews::new(
|
|
<a href=#227 id=227 data-nosnippet>227</a> <span class="self">self</span>.catalog_name.clone(),
|
|
<a href=#228 id=228 data-nosnippet>228</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#229 id=229 data-nosnippet>229</a> )) <span class="kw">as _</span>),
|
|
<a href=#230 id=230 data-nosnippet>230</a> FLOWS => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaFlows::new(
|
|
<a href=#231 id=231 data-nosnippet>231</a> <span class="self">self</span>.catalog_name.clone(),
|
|
<a href=#232 id=232 data-nosnippet>232</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#233 id=233 data-nosnippet>233</a> <span class="self">self</span>.flow_metadata_manager.clone(),
|
|
<a href=#234 id=234 data-nosnippet>234</a> )) <span class="kw">as _</span>),
|
|
<a href=#235 id=235 data-nosnippet>235</a> PROCEDURE_INFO => <span class="prelude-val">Some</span>(
|
|
<a href=#236 id=236 data-nosnippet>236</a> Arc::new(procedure_info::InformationSchemaProcedureInfo::new(
|
|
<a href=#237 id=237 data-nosnippet>237</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#238 id=238 data-nosnippet>238</a> )) <span class="kw">as _</span>,
|
|
<a href=#239 id=239 data-nosnippet>239</a> ),
|
|
<a href=#240 id=240 data-nosnippet>240</a> REGION_STATISTICS => <span class="prelude-val">Some</span>(Arc::new(
|
|
<a href=#241 id=241 data-nosnippet>241</a> region_statistics::InformationSchemaRegionStatistics::new(
|
|
<a href=#242 id=242 data-nosnippet>242</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#243 id=243 data-nosnippet>243</a> ),
|
|
<a href=#244 id=244 data-nosnippet>244</a> ) <span class="kw">as _</span>),
|
|
<a href=#245 id=245 data-nosnippet>245</a> PROCESS_LIST => <span class="self">self
|
|
<a href=#246 id=246 data-nosnippet>246</a> </span>.process_manager
|
|
<a href=#247 id=247 data-nosnippet>247</a> .as_ref()
|
|
<a href=#248 id=248 data-nosnippet>248</a> .map(|p| Arc::new(InformationSchemaProcessList::new(p.clone())) <span class="kw">as _</span>),
|
|
<a href=#249 id=249 data-nosnippet>249</a> SSTS_MANIFEST => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaSstsManifest::new(
|
|
<a href=#250 id=250 data-nosnippet>250</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#251 id=251 data-nosnippet>251</a> )) <span class="kw">as _</span>),
|
|
<a href=#252 id=252 data-nosnippet>252</a> SSTS_STORAGE => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaSstsStorage::new(
|
|
<a href=#253 id=253 data-nosnippet>253</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#254 id=254 data-nosnippet>254</a> )) <span class="kw">as _</span>),
|
|
<a href=#255 id=255 data-nosnippet>255</a> SSTS_INDEX_META => <span class="prelude-val">Some</span>(Arc::new(InformationSchemaSstsIndexMeta::new(
|
|
<a href=#256 id=256 data-nosnippet>256</a> <span class="self">self</span>.catalog_manager.clone(),
|
|
<a href=#257 id=257 data-nosnippet>257</a> )) <span class="kw">as _</span>),
|
|
<a href=#258 id=258 data-nosnippet>258</a> <span class="kw">_ </span>=> <span class="prelude-val">None</span>,
|
|
<a href=#259 id=259 data-nosnippet>259</a> }
|
|
<a href=#260 id=260 data-nosnippet>260</a> }
|
|
<a href=#261 id=261 data-nosnippet>261</a>}
|
|
<a href=#262 id=262 data-nosnippet>262</a>
|
|
<a href=#263 id=263 data-nosnippet>263</a><span class="kw">impl </span>InformationSchemaProvider {
|
|
<a href=#264 id=264 data-nosnippet>264</a> <span class="kw">pub fn </span>new(
|
|
<a href=#265 id=265 data-nosnippet>265</a> catalog_name: String,
|
|
<a href=#266 id=266 data-nosnippet>266</a> catalog_manager: Weak<<span class="kw">dyn </span>CatalogManager>,
|
|
<a href=#267 id=267 data-nosnippet>267</a> flow_metadata_manager: Arc<FlowMetadataManager>,
|
|
<a href=#268 id=268 data-nosnippet>268</a> process_manager: <span class="prelude-ty">Option</span><ProcessManagerRef>,
|
|
<a href=#269 id=269 data-nosnippet>269</a> kv_backend: KvBackendRef,
|
|
<a href=#270 id=270 data-nosnippet>270</a> ) -> <span class="self">Self </span>{
|
|
<a href=#271 id=271 data-nosnippet>271</a> <span class="kw">let </span><span class="kw-2">mut </span>provider = <span class="self">Self </span>{
|
|
<a href=#272 id=272 data-nosnippet>272</a> catalog_name,
|
|
<a href=#273 id=273 data-nosnippet>273</a> catalog_manager,
|
|
<a href=#274 id=274 data-nosnippet>274</a> flow_metadata_manager,
|
|
<a href=#275 id=275 data-nosnippet>275</a> process_manager,
|
|
<a href=#276 id=276 data-nosnippet>276</a> tables: HashMap::new(),
|
|
<a href=#277 id=277 data-nosnippet>277</a> kv_backend,
|
|
<a href=#278 id=278 data-nosnippet>278</a> extra_table_factories: HashMap::new(),
|
|
<a href=#279 id=279 data-nosnippet>279</a> };
|
|
<a href=#280 id=280 data-nosnippet>280</a>
|
|
<a href=#281 id=281 data-nosnippet>281</a> provider.build_tables();
|
|
<a href=#282 id=282 data-nosnippet>282</a>
|
|
<a href=#283 id=283 data-nosnippet>283</a> provider
|
|
<a href=#284 id=284 data-nosnippet>284</a> }
|
|
<a href=#285 id=285 data-nosnippet>285</a>
|
|
<a href=#286 id=286 data-nosnippet>286</a> <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>with_extra_table_factories(
|
|
<a href=#287 id=287 data-nosnippet>287</a> <span class="kw-2">mut </span><span class="self">self</span>,
|
|
<a href=#288 id=288 data-nosnippet>288</a> factories: HashMap<String, InformationSchemaTableFactoryRef>,
|
|
<a href=#289 id=289 data-nosnippet>289</a> ) -> <span class="self">Self </span>{
|
|
<a href=#290 id=290 data-nosnippet>290</a> <span class="self">self</span>.extra_table_factories = factories;
|
|
<a href=#291 id=291 data-nosnippet>291</a> <span class="self">self</span>.build_tables();
|
|
<a href=#292 id=292 data-nosnippet>292</a> <span class="self">self
|
|
<a href=#293 id=293 data-nosnippet>293</a> </span>}
|
|
<a href=#294 id=294 data-nosnippet>294</a>
|
|
<a href=#295 id=295 data-nosnippet>295</a> <span class="kw">fn </span>build_tables(<span class="kw-2">&mut </span><span class="self">self</span>) {
|
|
<a href=#296 id=296 data-nosnippet>296</a> <span class="kw">let </span><span class="kw-2">mut </span>tables = HashMap::new();
|
|
<a href=#297 id=297 data-nosnippet>297</a>
|
|
<a href=#298 id=298 data-nosnippet>298</a> <span class="comment">// SECURITY NOTE:
|
|
<a href=#299 id=299 data-nosnippet>299</a> // Carefully consider the tables that may expose sensitive cluster configurations,
|
|
<a href=#300 id=300 data-nosnippet>300</a> // authentication details, and other critical information.
|
|
<a href=#301 id=301 data-nosnippet>301</a> // Only put these tables under `greptime` catalog to prevent info leak.
|
|
<a href=#302 id=302 data-nosnippet>302</a> </span><span class="kw">if </span><span class="self">self</span>.catalog_name == DEFAULT_CATALOG_NAME {
|
|
<a href=#303 id=303 data-nosnippet>303</a> tables.insert(
|
|
<a href=#304 id=304 data-nosnippet>304</a> BUILD_INFO.to_string(),
|
|
<a href=#305 id=305 data-nosnippet>305</a> <span class="self">self</span>.build_table(BUILD_INFO).unwrap(),
|
|
<a href=#306 id=306 data-nosnippet>306</a> );
|
|
<a href=#307 id=307 data-nosnippet>307</a> tables.insert(
|
|
<a href=#308 id=308 data-nosnippet>308</a> REGION_PEERS.to_string(),
|
|
<a href=#309 id=309 data-nosnippet>309</a> <span class="self">self</span>.build_table(REGION_PEERS).unwrap(),
|
|
<a href=#310 id=310 data-nosnippet>310</a> );
|
|
<a href=#311 id=311 data-nosnippet>311</a> tables.insert(
|
|
<a href=#312 id=312 data-nosnippet>312</a> CLUSTER_INFO.to_string(),
|
|
<a href=#313 id=313 data-nosnippet>313</a> <span class="self">self</span>.build_table(CLUSTER_INFO).unwrap(),
|
|
<a href=#314 id=314 data-nosnippet>314</a> );
|
|
<a href=#315 id=315 data-nosnippet>315</a> tables.insert(
|
|
<a href=#316 id=316 data-nosnippet>316</a> PROCEDURE_INFO.to_string(),
|
|
<a href=#317 id=317 data-nosnippet>317</a> <span class="self">self</span>.build_table(PROCEDURE_INFO).unwrap(),
|
|
<a href=#318 id=318 data-nosnippet>318</a> );
|
|
<a href=#319 id=319 data-nosnippet>319</a> tables.insert(
|
|
<a href=#320 id=320 data-nosnippet>320</a> REGION_STATISTICS.to_string(),
|
|
<a href=#321 id=321 data-nosnippet>321</a> <span class="self">self</span>.build_table(REGION_STATISTICS).unwrap(),
|
|
<a href=#322 id=322 data-nosnippet>322</a> );
|
|
<a href=#323 id=323 data-nosnippet>323</a> tables.insert(
|
|
<a href=#324 id=324 data-nosnippet>324</a> SSTS_MANIFEST.to_string(),
|
|
<a href=#325 id=325 data-nosnippet>325</a> <span class="self">self</span>.build_table(SSTS_MANIFEST).unwrap(),
|
|
<a href=#326 id=326 data-nosnippet>326</a> );
|
|
<a href=#327 id=327 data-nosnippet>327</a> tables.insert(
|
|
<a href=#328 id=328 data-nosnippet>328</a> SSTS_STORAGE.to_string(),
|
|
<a href=#329 id=329 data-nosnippet>329</a> <span class="self">self</span>.build_table(SSTS_STORAGE).unwrap(),
|
|
<a href=#330 id=330 data-nosnippet>330</a> );
|
|
<a href=#331 id=331 data-nosnippet>331</a> tables.insert(
|
|
<a href=#332 id=332 data-nosnippet>332</a> SSTS_INDEX_META.to_string(),
|
|
<a href=#333 id=333 data-nosnippet>333</a> <span class="self">self</span>.build_table(SSTS_INDEX_META).unwrap(),
|
|
<a href=#334 id=334 data-nosnippet>334</a> );
|
|
<a href=#335 id=335 data-nosnippet>335</a> }
|
|
<a href=#336 id=336 data-nosnippet>336</a>
|
|
<a href=#337 id=337 data-nosnippet>337</a> tables.insert(TABLES.to_string(), <span class="self">self</span>.build_table(TABLES).unwrap());
|
|
<a href=#338 id=338 data-nosnippet>338</a> tables.insert(VIEWS.to_string(), <span class="self">self</span>.build_table(VIEWS).unwrap());
|
|
<a href=#339 id=339 data-nosnippet>339</a> tables.insert(SCHEMATA.to_string(), <span class="self">self</span>.build_table(SCHEMATA).unwrap());
|
|
<a href=#340 id=340 data-nosnippet>340</a> tables.insert(COLUMNS.to_string(), <span class="self">self</span>.build_table(COLUMNS).unwrap());
|
|
<a href=#341 id=341 data-nosnippet>341</a> tables.insert(
|
|
<a href=#342 id=342 data-nosnippet>342</a> KEY_COLUMN_USAGE.to_string(),
|
|
<a href=#343 id=343 data-nosnippet>343</a> <span class="self">self</span>.build_table(KEY_COLUMN_USAGE).unwrap(),
|
|
<a href=#344 id=344 data-nosnippet>344</a> );
|
|
<a href=#345 id=345 data-nosnippet>345</a> tables.insert(
|
|
<a href=#346 id=346 data-nosnippet>346</a> TABLE_CONSTRAINTS.to_string(),
|
|
<a href=#347 id=347 data-nosnippet>347</a> <span class="self">self</span>.build_table(TABLE_CONSTRAINTS).unwrap(),
|
|
<a href=#348 id=348 data-nosnippet>348</a> );
|
|
<a href=#349 id=349 data-nosnippet>349</a> tables.insert(FLOWS.to_string(), <span class="self">self</span>.build_table(FLOWS).unwrap());
|
|
<a href=#350 id=350 data-nosnippet>350</a> <span class="kw">if let </span><span class="prelude-val">Some</span>(process_list) = <span class="self">self</span>.build_table(PROCESS_LIST) {
|
|
<a href=#351 id=351 data-nosnippet>351</a> tables.insert(PROCESS_LIST.to_string(), process_list);
|
|
<a href=#352 id=352 data-nosnippet>352</a> }
|
|
<a href=#353 id=353 data-nosnippet>353</a> <span class="kw">for </span>name <span class="kw">in </span><span class="self">self</span>.extra_table_factories.keys() {
|
|
<a href=#354 id=354 data-nosnippet>354</a> tables.insert(name.clone(), <span class="self">self</span>.build_table(name).expect(name));
|
|
<a href=#355 id=355 data-nosnippet>355</a> }
|
|
<a href=#356 id=356 data-nosnippet>356</a> <span class="comment">// Add memory tables
|
|
<a href=#357 id=357 data-nosnippet>357</a> </span><span class="kw">for </span>name <span class="kw">in </span>MEMORY_TABLES.iter() {
|
|
<a href=#358 id=358 data-nosnippet>358</a> tables.insert((<span class="kw-2">*</span>name).to_string(), <span class="self">self</span>.build_table(name).expect(name));
|
|
<a href=#359 id=359 data-nosnippet>359</a> }
|
|
<a href=#360 id=360 data-nosnippet>360</a> <span class="self">self</span>.tables = tables;
|
|
<a href=#361 id=361 data-nosnippet>361</a> }
|
|
<a href=#362 id=362 data-nosnippet>362</a>}
|
|
<a href=#363 id=363 data-nosnippet>363</a>
|
|
<a href=#364 id=364 data-nosnippet>364</a><span class="kw">pub trait </span>InformationTable {
|
|
<a href=#365 id=365 data-nosnippet>365</a> <span class="kw">fn </span>table_id(<span class="kw-2">&</span><span class="self">self</span>) -> TableId;
|
|
<a href=#366 id=366 data-nosnippet>366</a>
|
|
<a href=#367 id=367 data-nosnippet>367</a> <span class="kw">fn </span>table_name(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'static </span>str;
|
|
<a href=#368 id=368 data-nosnippet>368</a>
|
|
<a href=#369 id=369 data-nosnippet>369</a> <span class="kw">fn </span>schema(<span class="kw-2">&</span><span class="self">self</span>) -> SchemaRef;
|
|
<a href=#370 id=370 data-nosnippet>370</a>
|
|
<a href=#371 id=371 data-nosnippet>371</a> <span class="kw">fn </span>to_stream(<span class="kw-2">&</span><span class="self">self</span>, request: ScanRequest) -> <span class="prelude-ty">Result</span><SendableRecordBatchStream>;
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<a href=#372 id=372 data-nosnippet>372</a>
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<a href=#373 id=373 data-nosnippet>373</a> <span class="kw">fn </span>table_type(<span class="kw-2">&</span><span class="self">self</span>) -> TableType {
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<a href=#374 id=374 data-nosnippet>374</a> TableType::Temporary
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<a href=#375 id=375 data-nosnippet>375</a> }
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<a href=#376 id=376 data-nosnippet>376</a>}
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<a href=#377 id=377 data-nosnippet>377</a>
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<a href=#378 id=378 data-nosnippet>378</a><span class="comment">// Provide compatibility for legacy `information_schema` code.
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<a href=#379 id=379 data-nosnippet>379</a></span><span class="kw">impl</span><T> SystemTable <span class="kw">for </span>T
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<a href=#380 id=380 data-nosnippet>380</a><span class="kw">where
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<a href=#381 id=381 data-nosnippet>381</a> </span>T: InformationTable,
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<a href=#382 id=382 data-nosnippet>382</a>{
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<a href=#383 id=383 data-nosnippet>383</a> <span class="kw">fn </span>table_id(<span class="kw-2">&</span><span class="self">self</span>) -> TableId {
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<a href=#384 id=384 data-nosnippet>384</a> InformationTable::table_id(<span class="self">self</span>)
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<a href=#385 id=385 data-nosnippet>385</a> }
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<a href=#386 id=386 data-nosnippet>386</a>
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<a href=#387 id=387 data-nosnippet>387</a> <span class="kw">fn </span>table_name(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="lifetime">'static </span>str {
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<a href=#388 id=388 data-nosnippet>388</a> InformationTable::table_name(<span class="self">self</span>)
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<a href=#389 id=389 data-nosnippet>389</a> }
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<a href=#390 id=390 data-nosnippet>390</a>
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<a href=#391 id=391 data-nosnippet>391</a> <span class="kw">fn </span>schema(<span class="kw-2">&</span><span class="self">self</span>) -> SchemaRef {
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<a href=#392 id=392 data-nosnippet>392</a> InformationTable::schema(<span class="self">self</span>)
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<a href=#393 id=393 data-nosnippet>393</a> }
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<a href=#394 id=394 data-nosnippet>394</a>
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<a href=#395 id=395 data-nosnippet>395</a> <span class="kw">fn </span>table_type(<span class="kw-2">&</span><span class="self">self</span>) -> TableType {
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<a href=#396 id=396 data-nosnippet>396</a> InformationTable::table_type(<span class="self">self</span>)
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<a href=#397 id=397 data-nosnippet>397</a> }
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<a href=#398 id=398 data-nosnippet>398</a>
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<a href=#399 id=399 data-nosnippet>399</a> <span class="kw">fn </span>to_stream(<span class="kw-2">&</span><span class="self">self</span>, request: ScanRequest) -> <span class="prelude-ty">Result</span><SendableRecordBatchStream> {
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<a href=#400 id=400 data-nosnippet>400</a> InformationTable::to_stream(<span class="self">self</span>, request)
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<a href=#401 id=401 data-nosnippet>401</a> }
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<a href=#402 id=402 data-nosnippet>402</a>}
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<a href=#403 id=403 data-nosnippet>403</a>
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<a href=#404 id=404 data-nosnippet>404</a><span class="kw">pub type </span>InformationExtensionRef = Arc<<span class="kw">dyn </span>InformationExtension<Error = Error> + Send + Sync>;
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<a href=#405 id=405 data-nosnippet>405</a>
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<a href=#406 id=406 data-nosnippet>406</a><span class="doccomment">/// The `InformationExtension` trait provides the extension methods for the `information_schema` tables.
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<a href=#407 id=407 data-nosnippet>407</a></span><span class="attr">#[async_trait::async_trait]
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<a href=#408 id=408 data-nosnippet>408</a></span><span class="kw">pub trait </span>InformationExtension {
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<a href=#409 id=409 data-nosnippet>409</a> <span class="kw">type </span>Error: ErrorExt;
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<a href=#410 id=410 data-nosnippet>410</a>
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<a href=#411 id=411 data-nosnippet>411</a> <span class="doccomment">/// Gets the nodes information.
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<a href=#412 id=412 data-nosnippet>412</a> </span><span class="kw">async fn </span>nodes(<span class="kw-2">&</span><span class="self">self</span>) -> std::result::Result<Vec<NodeInfo>, <span class="self">Self</span>::Error>;
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<a href=#413 id=413 data-nosnippet>413</a>
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<a href=#414 id=414 data-nosnippet>414</a> <span class="doccomment">/// Gets the procedures information.
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<a href=#415 id=415 data-nosnippet>415</a> </span><span class="kw">async fn </span>procedures(<span class="kw-2">&</span><span class="self">self</span>) -> std::result::Result<Vec<(String, ProcedureInfo)>, <span class="self">Self</span>::Error>;
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<a href=#416 id=416 data-nosnippet>416</a>
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<a href=#417 id=417 data-nosnippet>417</a> <span class="doccomment">/// Gets the region statistics.
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<a href=#418 id=418 data-nosnippet>418</a> </span><span class="kw">async fn </span>region_stats(<span class="kw-2">&</span><span class="self">self</span>) -> std::result::Result<Vec<RegionStat>, <span class="self">Self</span>::Error>;
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<a href=#419 id=419 data-nosnippet>419</a>
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<a href=#420 id=420 data-nosnippet>420</a> <span class="doccomment">/// Get the flow statistics. If no flownode is available, return `None`.
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<a href=#421 id=421 data-nosnippet>421</a> </span><span class="kw">async fn </span>flow_stats(<span class="kw-2">&</span><span class="self">self</span>) -> std::result::Result<<span class="prelude-ty">Option</span><FlowStat>, <span class="self">Self</span>::Error>;
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<a href=#422 id=422 data-nosnippet>422</a>
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<a href=#423 id=423 data-nosnippet>423</a> <span class="doccomment">/// Inspects the datanode.
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<a href=#424 id=424 data-nosnippet>424</a> </span><span class="kw">async fn </span>inspect_datanode(
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<a href=#425 id=425 data-nosnippet>425</a> <span class="kw-2">&</span><span class="self">self</span>,
|
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<a href=#426 id=426 data-nosnippet>426</a> request: DatanodeInspectRequest,
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<a href=#427 id=427 data-nosnippet>427</a> ) -> std::result::Result<SendableRecordBatchStream, <span class="self">Self</span>::Error>;
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<a href=#428 id=428 data-nosnippet>428</a>}
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<a href=#429 id=429 data-nosnippet>429</a>
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<a href=#430 id=430 data-nosnippet>430</a><span class="doccomment">/// The request to inspect the datanode.
|
|
<a href=#431 id=431 data-nosnippet>431</a></span><span class="attr">#[derive(Debug, Clone, PartialEq)]
|
|
<a href=#432 id=432 data-nosnippet>432</a></span><span class="kw">pub struct </span>DatanodeInspectRequest {
|
|
<a href=#433 id=433 data-nosnippet>433</a> <span class="doccomment">/// Kind to fetch from datanode.
|
|
<a href=#434 id=434 data-nosnippet>434</a> </span><span class="kw">pub </span>kind: DatanodeInspectKind,
|
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<a href=#435 id=435 data-nosnippet>435</a>
|
|
<a href=#436 id=436 data-nosnippet>436</a> <span class="doccomment">/// Pushdown scan configuration (projection/predicate/limit) for the returned stream.
|
|
<a href=#437 id=437 data-nosnippet>437</a> /// This allows server-side filtering to reduce I/O and network costs.
|
|
<a href=#438 id=438 data-nosnippet>438</a> </span><span class="kw">pub </span>scan: ScanRequest,
|
|
<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="doccomment">/// The kind of the datanode inspect request.
|
|
<a href=#442 id=442 data-nosnippet>442</a></span><span class="attr">#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
|
<a href=#443 id=443 data-nosnippet>443</a></span><span class="kw">pub enum </span>DatanodeInspectKind {
|
|
<a href=#444 id=444 data-nosnippet>444</a> <span class="doccomment">/// List SST entries recorded in manifest
|
|
<a href=#445 id=445 data-nosnippet>445</a> </span>SstManifest,
|
|
<a href=#446 id=446 data-nosnippet>446</a> <span class="doccomment">/// List SST entries discovered in storage layer
|
|
<a href=#447 id=447 data-nosnippet>447</a> </span>SstStorage,
|
|
<a href=#448 id=448 data-nosnippet>448</a> <span class="doccomment">/// List index metadata collected from manifest
|
|
<a href=#449 id=449 data-nosnippet>449</a> </span>SstIndexMeta,
|
|
<a href=#450 id=450 data-nosnippet>450</a>}
|
|
<a href=#451 id=451 data-nosnippet>451</a>
|
|
<a href=#452 id=452 data-nosnippet>452</a><span class="kw">impl </span>DatanodeInspectRequest {
|
|
<a href=#453 id=453 data-nosnippet>453</a> <span class="doccomment">/// Builds a logical plan for the datanode inspect request.
|
|
<a href=#454 id=454 data-nosnippet>454</a> </span><span class="kw">pub fn </span>build_plan(<span class="self">self</span>) -> std::result::Result<LogicalPlan, DataFusionError> {
|
|
<a href=#455 id=455 data-nosnippet>455</a> <span class="kw">match </span><span class="self">self</span>.kind {
|
|
<a href=#456 id=456 data-nosnippet>456</a> DatanodeInspectKind::SstManifest => ManifestSstEntry::build_plan(<span class="self">self</span>.scan),
|
|
<a href=#457 id=457 data-nosnippet>457</a> DatanodeInspectKind::SstStorage => StorageSstEntry::build_plan(<span class="self">self</span>.scan),
|
|
<a href=#458 id=458 data-nosnippet>458</a> DatanodeInspectKind::SstIndexMeta => PuffinIndexMetaEntry::build_plan(<span class="self">self</span>.scan),
|
|
<a href=#459 id=459 data-nosnippet>459</a> }
|
|
<a href=#460 id=460 data-nosnippet>460</a> }
|
|
<a href=#461 id=461 data-nosnippet>461</a>}
|
|
<a href=#462 id=462 data-nosnippet>462</a><span class="kw">pub struct </span>NoopInformationExtension;
|
|
<a href=#463 id=463 data-nosnippet>463</a>
|
|
<a href=#464 id=464 data-nosnippet>464</a><span class="attr">#[async_trait::async_trait]
|
|
<a href=#465 id=465 data-nosnippet>465</a></span><span class="kw">impl </span>InformationExtension <span class="kw">for </span>NoopInformationExtension {
|
|
<a href=#466 id=466 data-nosnippet>466</a> <span class="kw">type </span>Error = Error;
|
|
<a href=#467 id=467 data-nosnippet>467</a>
|
|
<a href=#468 id=468 data-nosnippet>468</a> <span class="kw">async fn </span>nodes(<span class="kw-2">&</span><span class="self">self</span>) -> std::result::Result<Vec<NodeInfo>, <span class="self">Self</span>::Error> {
|
|
<a href=#469 id=469 data-nosnippet>469</a> <span class="prelude-val">Ok</span>(<span class="macro">vec!</span>[])
|
|
<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="kw">async fn </span>procedures(<span class="kw-2">&</span><span class="self">self</span>) -> std::result::Result<Vec<(String, ProcedureInfo)>, <span class="self">Self</span>::Error> {
|
|
<a href=#473 id=473 data-nosnippet>473</a> <span class="prelude-val">Ok</span>(<span class="macro">vec!</span>[])
|
|
<a href=#474 id=474 data-nosnippet>474</a> }
|
|
<a href=#475 id=475 data-nosnippet>475</a>
|
|
<a href=#476 id=476 data-nosnippet>476</a> <span class="kw">async fn </span>region_stats(<span class="kw-2">&</span><span class="self">self</span>) -> std::result::Result<Vec<RegionStat>, <span class="self">Self</span>::Error> {
|
|
<a href=#477 id=477 data-nosnippet>477</a> <span class="prelude-val">Ok</span>(<span class="macro">vec!</span>[])
|
|
<a href=#478 id=478 data-nosnippet>478</a> }
|
|
<a href=#479 id=479 data-nosnippet>479</a>
|
|
<a href=#480 id=480 data-nosnippet>480</a> <span class="kw">async fn </span>flow_stats(<span class="kw-2">&</span><span class="self">self</span>) -> std::result::Result<<span class="prelude-ty">Option</span><FlowStat>, <span class="self">Self</span>::Error> {
|
|
<a href=#481 id=481 data-nosnippet>481</a> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>)
|
|
<a href=#482 id=482 data-nosnippet>482</a> }
|
|
<a href=#483 id=483 data-nosnippet>483</a>
|
|
<a href=#484 id=484 data-nosnippet>484</a> <span class="kw">async fn </span>inspect_datanode(
|
|
<a href=#485 id=485 data-nosnippet>485</a> <span class="kw-2">&</span><span class="self">self</span>,
|
|
<a href=#486 id=486 data-nosnippet>486</a> _request: DatanodeInspectRequest,
|
|
<a href=#487 id=487 data-nosnippet>487</a> ) -> std::result::Result<SendableRecordBatchStream, <span class="self">Self</span>::Error> {
|
|
<a href=#488 id=488 data-nosnippet>488</a> <span class="prelude-val">Ok</span>(common_recordbatch::RecordBatches::empty().as_stream())
|
|
<a href=#489 id=489 data-nosnippet>489</a> }
|
|
<a href=#490 id=490 data-nosnippet>490</a>}
|
|
</code></pre></div></section></main></body></html> |