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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="Utilities for projection on flat format."><title>mito2::read::flat_projection - 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 flat_projection</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 flat_<wbr>projection</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="#functions" title="Functions">Functions</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In mito2::<wbr>read</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">read</a></div><h1>Module <span>flat_<wbr>projection</span> <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/read/flat_projection.rs.html#15-520">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Utilities for projection on flat format.</p>
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</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.CompactionProjectionMapper.html" title="struct mito2::read::flat_projection::CompactionProjectionMapper">Compaction<wbr>Projection<wbr>Mapper</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Helper to project compaction batches into flat format columns
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(fields + time index + __primary_key + __sequence + __op_type).</dd><dt><a class="struct" href="struct.DfBatchAssembler.html" title="struct mito2::read::flat_projection::DfBatchAssembler">DfBatch<wbr>Assembler</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Builds [DfRecordBatch] with internal columns appended.</dd><dt><a class="struct" href="struct.FlatProjectionMapper.html" title="struct mito2::read::flat_projection::FlatProjectionMapper">Flat<wbr>Projection<wbr>Mapper</a></dt><dd>Handles projection and converts batches in flat format with correct schema.</dd></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.compute_input_arrow_schema.html" title="fn mito2::read::flat_projection::compute_input_arrow_schema">compute_<wbr>input_<wbr>arrow_<wbr>schema</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Computes the Arrow schema for input batches.</dd><dt><a class="fn" href="fn.flat_projected_columns.html" title="fn mito2::read::flat_projection::flat_projected_columns">flat_<wbr>projected_<wbr>columns</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Returns ids and datatypes of columns of the output batch after applying the <code>projection</code>.</dd><dt><a class="fn" href="fn.single_value_string_dictionary.html" title="fn mito2::read::flat_projection::single_value_string_dictionary">single_<wbr>value_<wbr>string_<wbr>dictionary</a><span title="Restricted Visibility"> 🔒</span> </dt></dl></section></div></main></body></html> |