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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="API documentation for the Rust `const_normalization` mod in crate `query`."><title>query::optimizer::const_normalization - 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="query" 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 const_normalization</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../query/index.html">query</a><span class="version">1.0.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module const_<wbr>normalization</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="#functions" title="Functions">Functions</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In query::<wbr>optimizer</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">query</a>::<wbr><a href="../index.html">optimizer</a></div><h1>Module <span>const_<wbr>normalization</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/query/optimizer/const_normalization.rs.html#15-1133">Source</a> </span></div><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.ConstNormalizationRewriter.html" title="struct query::optimizer::const_normalization::ConstNormalizationRewriter">Const<wbr>Normalization<wbr>Rewriter</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="struct" href="struct.ConstNormalizationRule.html" title="struct query::optimizer::const_normalization::ConstNormalizationRule">Const<wbr>Normalization<wbr>Rule</a></dt><dd>ConstNormalizationRule rewrites castable constants against their
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non-constant comparison operand ahead of filter pushdown.</dd><dt><a class="struct" href="struct.NormalizationTarget.html" title="struct query::optimizer::const_normalization::NormalizationTarget">Normalization<wbr>Target</a><span title="Restricted Visibility"> 🔒</span> </dt></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.CastInputKind.html" title="enum query::optimizer::const_normalization::CastInputKind">Cast<wbr>Input<wbr>Kind</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="enum" href="enum.NormalizationKind.html" title="enum query::optimizer::const_normalization::NormalizationKind">Normalization<wbr>Kind</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="enum" href="enum.PatternMatchKind.html" title="enum query::optimizer::const_normalization::PatternMatchKind">Pattern<wbr>Match<wbr>Kind</a><span title="Restricted Visibility"> 🔒</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.classify_normalization_kind.html" title="fn query::optimizer::const_normalization::classify_normalization_kind">classify_<wbr>normalization_<wbr>kind</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.extract_cast_input.html" title="fn query::optimizer::const_normalization::extract_cast_input">extract_<wbr>cast_<wbr>input</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Returns the input expression and target type for <code>CAST</code> and <code>TRY_CAST</code> expressions.</dd><dt><a class="fn" href="fn.extract_constant_scalar.html" title="fn query::optimizer::const_normalization::extract_constant_scalar">extract_<wbr>constant_<wbr>scalar</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Extracts a literal scalar from an expression, folding constant <code>CAST</code> and <code>TRY_CAST</code> nodes.</dd><dt><a class="fn" href="fn.extract_constant_scalars.html" title="fn query::optimizer::const_normalization::extract_constant_scalars">extract_<wbr>constant_<wbr>scalars</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.extract_normalization_target.html" title="fn query::optimizer::const_normalization::extract_normalization_target">extract_<wbr>normalization_<wbr>target</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Returns the non-constant side we should normalize against.</dd><dt><a class="fn" href="fn.extract_rewrite_operands.html" title="fn query::optimizer::const_normalization::extract_rewrite_operands">extract_<wbr>rewrite_<wbr>operands</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.finer_to_coarser_ratio.html" title="fn query::optimizer::const_normalization::finer_to_coarser_ratio">finer_<wbr>to_<wbr>coarser_<wbr>ratio</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Returns the number of source-unit ticks in one target-unit tick for finer-to-coarser casts.</dd><dt><a class="fn" href="fn.is_lossless_cast.html" title="fn query::optimizer::const_normalization::is_lossless_cast">is_<wbr>lossless_<wbr>cast</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Returns whether every value of <code>source_type</code> is representable in <code>target_type</code>.</dd><dt><a class="fn" href="fn.lower_bound_for_ge.html" title="fn query::optimizer::const_normalization::lower_bound_for_ge">lower_<wbr>bound_<wbr>for_<wbr>ge</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Returns the smallest source-unit timestamp whose downcast is greater than or equal to
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<code>target_value</code>.</dd><dt><a class="fn" href="fn.rewrite_between_expr.html" title="fn query::optimizer::const_normalization::rewrite_between_expr">rewrite_<wbr>between_<wbr>expr</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.rewrite_binary_expr.html" title="fn query::optimizer::const_normalization::rewrite_binary_expr">rewrite_<wbr>binary_<wbr>expr</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.rewrite_binary_side.html" title="fn query::optimizer::const_normalization::rewrite_binary_side">rewrite_<wbr>binary_<wbr>side</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.rewrite_expr_node.html" title="fn query::optimizer::const_normalization::rewrite_expr_node">rewrite_<wbr>expr_<wbr>node</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.rewrite_in_list_expr.html" title="fn query::optimizer::const_normalization::rewrite_in_list_expr">rewrite_<wbr>in_<wbr>list_<wbr>expr</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.rewrite_like_expr.html" title="fn query::optimizer::const_normalization::rewrite_like_expr">rewrite_<wbr>like_<wbr>expr</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.rewrite_plan_exprs.html" title="fn query::optimizer::const_normalization::rewrite_plan_exprs">rewrite_<wbr>plan_<wbr>exprs</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.time_unit_rank.html" title="fn query::optimizer::const_normalization::time_unit_rank">time_<wbr>unit_<wbr>rank</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.time_unit_scale.html" title="fn query::optimizer::const_normalization::time_unit_scale">time_<wbr>unit_<wbr>scale</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.timestamp_scalar.html" title="fn query::optimizer::const_normalization::timestamp_scalar">timestamp_<wbr>scalar</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.timestamp_scalar_value.html" title="fn query::optimizer::const_normalization::timestamp_scalar_value">timestamp_<wbr>scalar_<wbr>value</a><span title="Restricted Visibility"> 🔒</span> </dt></dl></section></div></main></body></html> |