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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="Bulk part encoder/decoder."><title>mito2::memtable::bulk::part - Rust</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="mito2" 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="../sidebar-items.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 mod"><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]--><rustdoc-topbar><h2><a href="#">Module part</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../mito2/index.html">mito2</a><span class="version">1.0.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module part</a></h2><h3><a href="#structs">Module Items</a></h3><ul class="block"><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#enums" title="Enums">Enums</a></li><li><a href="#constants" title="Constants">Constants</a></li><li><a href="#functions" title="Functions">Functions</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In mito2::<wbr>memtable::<wbr>bulk</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">mito2</a>::<wbr><a href="../../index.html">memtable</a>::<wbr><a href="../index.html">bulk</a></div><h1>Module <span>part</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/mito2/memtable/bulk/part.rs.html#15-2891">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Bulk part encoder/decoder.</p>
</div></details><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.BatchPruningStats.html" title="struct mito2::memtable::bulk::part::BatchPruningStats">Batch<wbr>Pruning<wbr>Stats</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Adapter implementing <code>PruningStatistics</code> for <code>BatchStats</code>.</dd><dt><a class="struct" href="struct.BatchStats.html" title="struct mito2::memtable::bulk::part::BatchStats">Batch<wbr>Stats</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Per-batch min/max statistics for the first tag column in a <code>MultiBulkPart</code>.</dd><dt><a class="struct" href="struct.BulkPart.html" title="struct mito2::memtable::bulk::part::BulkPart">Bulk<wbr>Part</a></dt><dd>A raw bulk part in the memtable.</dd><dt><a class="struct" href="struct.BulkPartConverter.html" title="struct mito2::memtable::bulk::part::BulkPartConverter">Bulk<wbr>Part<wbr>Converter</a></dt><dd>Converter that converts structs into <a href="struct.BulkPart.html" title="struct mito2::memtable::bulk::part::BulkPart">BulkPart</a>.</dd><dt><a class="struct" href="struct.BulkPartEncodeMetrics.html" title="struct mito2::memtable::bulk::part::BulkPartEncodeMetrics">Bulk<wbr>Part<wbr>Encode<wbr>Metrics</a></dt><dd>Metrics for encoding a part.</dd><dt><a class="struct" href="struct.BulkPartEncoder.html" title="struct mito2::memtable::bulk::part::BulkPartEncoder">Bulk<wbr>Part<wbr>Encoder</a></dt><dt><a class="struct" href="struct.BulkPartMeta.html" title="struct mito2::memtable::bulk::part::BulkPartMeta">Bulk<wbr>Part<wbr>Meta</a></dt><dt><a class="struct" href="struct.EncodedBulkPart.html" title="struct mito2::memtable::bulk::part::EncodedBulkPart">Encoded<wbr>Bulk<wbr>Part</a></dt><dt><a class="struct" href="struct.MultiBulkPart.html" title="struct mito2::memtable::bulk::part::MultiBulkPart">Multi<wbr>Bulk<wbr>Part</a></dt><dd>A collection of ordered RecordBatches representing a bulk part without parquet encoding.</dd><dt><a class="struct" href="struct.UnorderedPart.html" title="struct mito2::memtable::bulk::part::UnorderedPart">Unordered<wbr>Part</a></dt><dd>A collection of small unordered bulk parts.
Used to batch small parts together before merging them into a sorted part.</dd></dl><h2 id="enums" class="section-header">Enums<a href="#enums" class="anchor">§</a></h2><dl class="item-table"><dt><a class="enum" href="enum.PrimaryKeyColumnBuilder.html" title="enum mito2::memtable::bulk::part::PrimaryKeyColumnBuilder">Primary<wbr>KeyColumn<wbr>Builder</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Primary key column builder for handling strings specially.</dd></dl><h2 id="constants" class="section-header">Constants<a href="#constants" class="anchor">§</a></h2><dl class="item-table"><dt><a class="constant" href="constant.INIT_DICT_VALUE_CAPACITY.html" title="constant mito2::memtable::bulk::part::INIT_DICT_VALUE_CAPACITY">INIT_<wbr>DICT_<wbr>VALUE_<wbr>CAPACITY</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt></dl><h2 id="functions" class="section-header">Functions<a href="#functions" class="anchor">§</a></h2><dl class="item-table"><dt><a class="fn" href="fn.align_parts.html" title="fn mito2::memtable::bulk::part::align_parts">align_<wbr>parts</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Align the JSON columns in <a href="struct.BulkPart.html" title="struct mito2::memtable::bulk::part::BulkPart">BulkPart</a>s, to unified Arrow arrays. So that we can compute (concat,
sort, etc.) on them.</dd><dt><a class="fn" href="fn.align_schema_with_json_array.html" title="fn mito2::memtable::bulk::part::align_schema_with_json_array">align_<wbr>schema_<wbr>with_<wbr>json_<wbr>array</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dt><a class="fn" href="fn.convert_bulk_part.html" title="fn mito2::memtable::bulk::part::convert_bulk_part">convert_<wbr>bulk_<wbr>part</a></dt><dd>Converts a <code>BulkPart</code> that is unordered and without encoded primary keys into a <code>BulkPart</code>
with the same format as produced by <a href="struct.BulkPartConverter.html" title="struct mito2::memtable::bulk::part::BulkPartConverter">BulkPartConverter</a>.</dd><dt><a class="fn" href="fn.new_primary_key_column_builders.html" title="fn mito2::memtable::bulk::part::new_primary_key_column_builders">new_<wbr>primary_<wbr>key_<wbr>column_<wbr>builders</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dt><a class="fn" href="fn.predicate_references_column.html" title="fn mito2::memtable::bulk::part::predicate_references_column">predicate_<wbr>references_<wbr>column</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Returns true if the predicate references the given column name.</dd><dt><a class="fn" href="fn.record_batch_estimated_size.html" title="fn mito2::memtable::bulk::part::record_batch_estimated_size">record_<wbr>batch_<wbr>estimated_<wbr>size</a></dt><dd>More accurate estimation of the size of a record batch.</dd><dt><a class="fn" href="fn.should_prune_bulk_part.html" title="fn mito2::memtable::bulk::part::should_prune_bulk_part">should_<wbr>prune_<wbr>bulk_<wbr>part</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Returns true if the batch should be pruned (skipped) based on the first-tag min/max
statistics and the predicate in the context. Returns false if no pruning is possible
(no primary key, no predicate, or the batch matches the predicate).</dd><dt><a class="fn" href="fn.sort_primary_key_record_batch.html" title="fn mito2::memtable::bulk::part::sort_primary_key_record_batch">sort_<wbr>primary_<wbr>key_<wbr>record_<wbr>batch</a></dt><dd>Sorts the record batch with primary key format.</dd></dl></section></div></main></body></html>