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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/cli/src/metadata/repair/alter_table.rs`."><title>alter_table.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="cli" 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">cli/metadata/repair/</div>alter_table.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap digits-2"><pre class="rust"><code><a href=#1 id=1 data-nosnippet>1</a><span class="comment">// Copyright 2023 Greptime Team
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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>client::api::v1::alter_table_expr::Kind;
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<a href=#16 id=16 data-nosnippet>16</a><span class="kw">use </span>client::api::v1::region::{AlterRequests, RegionRequest, RegionRequestHeader, region_request};
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<a href=#17 id=17 data-nosnippet>17</a><span class="kw">use </span>client::api::v1::{AddColumn, AddColumns, AlterTableExpr};
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<a href=#18 id=18 data-nosnippet>18</a><span class="kw">use </span>common_meta::ddl::alter_logical_tables::make_alter_region_request;
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<a href=#19 id=19 data-nosnippet>19</a><span class="kw">use </span>common_meta::peer::Peer;
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<a href=#20 id=20 data-nosnippet>20</a><span class="kw">use </span>common_meta::rpc::router::{RegionRoute, find_leader_regions};
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<a href=#21 id=21 data-nosnippet>21</a><span class="kw">use </span>operator::expr_helper::column_schemas_to_defs;
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<a href=#22 id=22 data-nosnippet>22</a><span class="kw">use </span>snafu::ResultExt;
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<a href=#23 id=23 data-nosnippet>23</a><span class="kw">use </span>store_api::storage::{RegionId, TableId};
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<a href=#24 id=24 data-nosnippet>24</a><span class="kw">use </span>table::metadata::TableInfo;
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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>::error::{CovertColumnSchemasToDefsSnafu, <span class="prelude-ty">Result</span>};
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<a href=#27 id=27 data-nosnippet>27</a>
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<a href=#28 id=28 data-nosnippet>28</a><span class="doccomment">/// Generates alter table expression for all columns.
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<a href=#29 id=29 data-nosnippet>29</a></span><span class="kw">pub fn </span>generate_alter_table_expr_for_all_columns(table_info: <span class="kw-2">&</span>TableInfo) -> <span class="prelude-ty">Result</span><AlterTableExpr> {
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<a href=#30 id=30 data-nosnippet>30</a> <span class="kw">let </span>schema = <span class="kw-2">&</span>table_info.meta.schema;
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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">let </span><span class="kw-2">mut </span>alter_table_expr = AlterTableExpr {
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<a href=#33 id=33 data-nosnippet>33</a> catalog_name: table_info.catalog_name.clone(),
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<a href=#34 id=34 data-nosnippet>34</a> schema_name: table_info.schema_name.clone(),
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<a href=#35 id=35 data-nosnippet>35</a> table_name: table_info.name.clone(),
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<a href=#36 id=36 data-nosnippet>36</a> ..Default::default()
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<a href=#37 id=37 data-nosnippet>37</a> };
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<a href=#38 id=38 data-nosnippet>38</a>
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<a href=#39 id=39 data-nosnippet>39</a> <span class="kw">let </span>primary_keys = table_info
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<a href=#40 id=40 data-nosnippet>40</a> .meta
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<a href=#41 id=41 data-nosnippet>41</a> .primary_key_indices
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<a href=#42 id=42 data-nosnippet>42</a> .iter()
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<a href=#43 id=43 data-nosnippet>43</a> .map(|i| schema.column_schemas()[<span class="kw-2">*</span>i].name.clone())
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<a href=#44 id=44 data-nosnippet>44</a> .collect::<Vec<<span class="kw">_</span>>>();
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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">let </span>add_columns = column_schemas_to_defs(schema.column_schemas().to_vec(), <span class="kw-2">&</span>primary_keys)
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<a href=#47 id=47 data-nosnippet>47</a> .context(CovertColumnSchemasToDefsSnafu)<span class="question-mark">?</span>;
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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> alter_table_expr.kind = <span class="prelude-val">Some</span>(Kind::AddColumns(AddColumns {
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<a href=#50 id=50 data-nosnippet>50</a> add_columns: add_columns
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<a href=#51 id=51 data-nosnippet>51</a> .into_iter()
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<a href=#52 id=52 data-nosnippet>52</a> .map(|col| AddColumn {
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<a href=#53 id=53 data-nosnippet>53</a> column_def: <span class="prelude-val">Some</span>(col),
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<a href=#54 id=54 data-nosnippet>54</a> location: <span class="prelude-val">None</span>,
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<a href=#55 id=55 data-nosnippet>55</a> add_if_not_exists: <span class="bool-val">true</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> .collect(),
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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="prelude-val">Ok</span>(alter_table_expr)
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<a href=#61 id=61 data-nosnippet>61</a>}
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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">/// Makes an alter region request for a peer.
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<a href=#64 id=64 data-nosnippet>64</a></span><span class="kw">pub fn </span>make_alter_region_request_for_peer(
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<a href=#65 id=65 data-nosnippet>65</a> logical_table_id: TableId,
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<a href=#66 id=66 data-nosnippet>66</a> alter_table_expr: <span class="kw-2">&</span>AlterTableExpr,
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<a href=#67 id=67 data-nosnippet>67</a> peer: <span class="kw-2">&</span>Peer,
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<a href=#68 id=68 data-nosnippet>68</a> region_routes: <span class="kw-2">&</span>[RegionRoute],
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<a href=#69 id=69 data-nosnippet>69</a>) -> <span class="prelude-ty">Result</span><RegionRequest> {
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<a href=#70 id=70 data-nosnippet>70</a> <span class="kw">let </span>regions_on_this_peer = find_leader_regions(region_routes, peer);
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<a href=#71 id=71 data-nosnippet>71</a> <span class="kw">let </span><span class="kw-2">mut </span>requests = Vec::with_capacity(regions_on_this_peer.len());
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<a href=#72 id=72 data-nosnippet>72</a> <span class="kw">for </span>region_number <span class="kw">in </span><span class="kw-2">&</span>regions_on_this_peer {
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<a href=#73 id=73 data-nosnippet>73</a> <span class="kw">let </span>region_id = RegionId::new(logical_table_id, <span class="kw-2">*</span>region_number);
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<a href=#74 id=74 data-nosnippet>74</a> <span class="kw">let </span>request = make_alter_region_request(region_id, alter_table_expr);
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<a href=#75 id=75 data-nosnippet>75</a> requests.push(request);
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<a href=#76 id=76 data-nosnippet>76</a> }
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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> <span class="prelude-val">Ok</span>(RegionRequest {
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<a href=#79 id=79 data-nosnippet>79</a> header: <span class="prelude-val">Some</span>(RegionRequestHeader::default()),
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<a href=#80 id=80 data-nosnippet>80</a> body: <span class="prelude-val">Some</span>(region_request::Body::Alters(AlterRequests { requests })),
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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>}
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</code></pre></div></section></main></body></html> |