| <!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 `/root/.cargo/git/checkouts/tantivy-65d0bbbddbbd5d02/433372d/src/indexer/sorted_doc_id_column.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>sorted_doc_id_column.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../tantivy/index.html"><div class="logo-container"> |
| <img src="http://fulmicoton.com/tantivy-logo/tantivy-logo.png" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../tantivy/index.html"> |
| <img src="http://fulmicoton.com/tantivy-logo/tantivy-logo.png" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
| <span id="2">2</span> |
| <span id="3">3</span> |
| <span id="4">4</span> |
| <span id="5">5</span> |
| <span id="6">6</span> |
| <span id="7">7</span> |
| <span id="8">8</span> |
| <span id="9">9</span> |
| <span id="10">10</span> |
| <span id="11">11</span> |
| <span id="12">12</span> |
| <span id="13">13</span> |
| <span id="14">14</span> |
| <span id="15">15</span> |
| <span id="16">16</span> |
| <span id="17">17</span> |
| <span id="18">18</span> |
| <span id="19">19</span> |
| <span id="20">20</span> |
| <span id="21">21</span> |
| <span id="22">22</span> |
| <span id="23">23</span> |
| <span id="24">24</span> |
| <span id="25">25</span> |
| <span id="26">26</span> |
| <span id="27">27</span> |
| <span id="28">28</span> |
| <span id="29">29</span> |
| <span id="30">30</span> |
| <span id="31">31</span> |
| <span id="32">32</span> |
| <span id="33">33</span> |
| <span id="34">34</span> |
| <span id="35">35</span> |
| <span id="36">36</span> |
| <span id="37">37</span> |
| <span id="38">38</span> |
| <span id="39">39</span> |
| <span id="40">40</span> |
| <span id="41">41</span> |
| <span id="42">42</span> |
| <span id="43">43</span> |
| <span id="44">44</span> |
| <span id="45">45</span> |
| <span id="46">46</span> |
| <span id="47">47</span> |
| <span id="48">48</span> |
| <span id="49">49</span> |
| <span id="50">50</span> |
| <span id="51">51</span> |
| <span id="52">52</span> |
| <span id="53">53</span> |
| <span id="54">54</span> |
| <span id="55">55</span> |
| <span id="56">56</span> |
| <span id="57">57</span> |
| <span id="58">58</span> |
| <span id="59">59</span> |
| <span id="60">60</span> |
| <span id="61">61</span> |
| <span id="62">62</span> |
| <span id="63">63</span> |
| <span id="64">64</span> |
| <span id="65">65</span> |
| <span id="66">66</span> |
| <span id="67">67</span> |
| <span id="68">68</span> |
| <span id="69">69</span> |
| <span id="70">70</span> |
| <span id="71">71</span> |
| <span id="72">72</span> |
| <span id="73">73</span> |
| <span id="74">74</span> |
| <span id="75">75</span> |
| <span id="76">76</span> |
| <span id="77">77</span> |
| <span id="78">78</span> |
| <span id="79">79</span> |
| <span id="80">80</span> |
| <span id="81">81</span> |
| <span id="82">82</span> |
| <span id="83">83</span> |
| <span id="84">84</span> |
| <span id="85">85</span> |
| <span id="86">86</span> |
| <span id="87">87</span> |
| <span id="88">88</span> |
| <span id="89">89</span> |
| <span id="90">90</span> |
| <span id="91">91</span> |
| <span id="92">92</span> |
| <span id="93">93</span> |
| <span id="94">94</span> |
| <span id="95">95</span> |
| <span id="96">96</span> |
| <span id="97">97</span> |
| <span id="98">98</span> |
| <span id="99">99</span> |
| <span id="100">100</span> |
| <span id="101">101</span> |
| <span id="102">102</span> |
| <span id="103">103</span> |
| <span id="104">104</span> |
| <span id="105">105</span> |
| <span id="106">106</span> |
| <span id="107">107</span> |
| <span id="108">108</span> |
| </pre><pre class="rust"><code><span class="kw">use </span>std::sync::Arc; |
| |
| <span class="kw">use </span>fastfield_codecs::Column; |
| <span class="kw">use </span>itertools::Itertools; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::indexer::doc_id_mapping::SegmentDocIdMapping; |
| <span class="kw">use </span><span class="kw">crate</span>::schema::Field; |
| <span class="kw">use </span><span class="kw">crate</span>::SegmentReader; |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>RemappedDocIdColumn<<span class="lifetime">'a</span>> { |
| doc_id_mapping: <span class="kw-2">&</span><span class="lifetime">'a </span>SegmentDocIdMapping, |
| fast_field_readers: Vec<Arc<<span class="kw">dyn </span>Column<u64>>>, |
| min_value: u64, |
| max_value: u64, |
| num_vals: u32, |
| } |
| |
| <span class="kw">fn </span>compute_min_max_val( |
| u64_reader: <span class="kw-2">&</span><span class="kw">dyn </span>Column<u64>, |
| segment_reader: <span class="kw-2">&</span>SegmentReader, |
| ) -> <span class="prelude-ty">Option</span><(u64, u64)> { |
| <span class="kw">if </span>segment_reader.max_doc() == <span class="number">0 </span>{ |
| <span class="kw">return </span><span class="prelude-val">None</span>; |
| } |
| |
| <span class="kw">if </span>segment_reader.alive_bitset().is_none() { |
| <span class="comment">// no deleted documents, |
| // we can use the previous min_val, max_val. |
| </span><span class="kw">return </span><span class="prelude-val">Some</span>((u64_reader.min_value(), u64_reader.max_value())); |
| } |
| <span class="comment">// some deleted documents, |
| // we need to recompute the max / min |
| </span>segment_reader |
| .doc_ids_alive() |
| .map(|doc_id| u64_reader.get_val(doc_id)) |
| .minmax() |
| .into_option() |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> RemappedDocIdColumn<<span class="lifetime">'a</span>> { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new( |
| readers: <span class="kw-2">&</span><span class="lifetime">'a </span>[SegmentReader], |
| doc_id_mapping: <span class="kw-2">&</span><span class="lifetime">'a </span>SegmentDocIdMapping, |
| field: Field, |
| ) -> <span class="self">Self </span>{ |
| <span class="kw">let </span>(min_value, max_value) = readers |
| .iter() |
| .filter_map(|reader| { |
| <span class="kw">let </span>u64_reader: Arc<<span class="kw">dyn </span>Column<u64>> = |
| reader.fast_fields().typed_fast_field_reader(field).expect( |
| <span class="string">"Failed to find a reader for single fast field. This is a tantivy bug and \ |
| it should never happen."</span>, |
| ); |
| compute_min_max_val(<span class="kw-2">&*</span>u64_reader, reader) |
| }) |
| .reduce(|a, b| (a.<span class="number">0</span>.min(b.<span class="number">0</span>), a.<span class="number">1</span>.max(b.<span class="number">1</span>))) |
| .expect(<span class="string">"Unexpected error, empty readers in IndexMerger"</span>); |
| |
| <span class="kw">let </span>fast_field_readers = readers |
| .iter() |
| .map(|reader| { |
| <span class="kw">let </span>u64_reader: Arc<<span class="kw">dyn </span>Column<u64>> = |
| reader.fast_fields().typed_fast_field_reader(field).expect( |
| <span class="string">"Failed to find a reader for single fast field. This is a tantivy bug and \ |
| it should never happen."</span>, |
| ); |
| u64_reader |
| }) |
| .collect::<Vec<<span class="kw">_</span>>>(); |
| |
| RemappedDocIdColumn { |
| doc_id_mapping, |
| fast_field_readers, |
| min_value, |
| max_value, |
| num_vals: doc_id_mapping.len() <span class="kw">as </span>u32, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> Column <span class="kw">for </span>RemappedDocIdColumn<<span class="lifetime">'a</span>> { |
| <span class="kw">fn </span>get_val(<span class="kw-2">&</span><span class="self">self</span>, _doc: u32) -> u64 { |
| <span class="macro">unimplemented!</span>() |
| } |
| |
| <span class="kw">fn </span>iter(<span class="kw-2">&</span><span class="self">self</span>) -> Box<<span class="kw">dyn </span>Iterator<Item = u64> + <span class="lifetime">'_</span>> { |
| Box::new( |
| <span class="self">self</span>.doc_id_mapping |
| .iter_old_doc_addrs() |
| .map(|old_doc_addr| { |
| <span class="kw">let </span>fast_field_reader = |
| <span class="kw-2">&</span><span class="self">self</span>.fast_field_readers[old_doc_addr.segment_ord <span class="kw">as </span>usize]; |
| fast_field_reader.get_val(old_doc_addr.doc_id) |
| }), |
| ) |
| } |
| <span class="kw">fn </span>min_value(<span class="kw-2">&</span><span class="self">self</span>) -> u64 { |
| <span class="self">self</span>.min_value |
| } |
| |
| <span class="kw">fn </span>max_value(<span class="kw-2">&</span><span class="self">self</span>) -> u64 { |
| <span class="self">self</span>.max_value |
| } |
| |
| <span class="kw">fn </span>num_vals(<span class="kw-2">&</span><span class="self">self</span>) -> u32 { |
| <span class="self">self</span>.num_vals |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="tantivy" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
