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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="In this file, `render` means convert a static `Plan` into a Executable Dataflow"><title>flow::compute::render - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../static.files/storage-e2aeef58.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-263c88ec.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"><!--[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 render</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module render</a></h2><h3><a href="#modules">Module Items</a></h3><ul class="block"><li><a href="#modules" title="Modules">Modules</a></li><li><a href="#structs" title="Structs">Structs</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In flow::<wbr>compute</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../index.html">flow</a>::<wbr><a href="../index.html">compute</a></div><h1>Module <span>render</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/flow/compute/render.rs.html#15-527">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>In this file, <code>render</code> means convert a static <code>Plan</code> into a Executable Dataflow</p>
<p>And the <a href="struct.Context.html" title="struct flow::compute::render::Context"><code>Context</code></a> is the environment for the render process, it contains all the necessary information for the render process</p>
</div></details><h2 id="modules" class="section-header">Modules<a href="#modules" class="anchor">§</a></h2><dl class="item-table"><dt><a class="mod" href="map/index.html" title="mod flow::compute::render::map">map</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dt><a class="mod" href="reduce/index.html" title="mod flow::compute::render::reduce">reduce</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dt><a class="mod" href="src_sink/index.html" title="mod flow::compute::render::src_sink">src_<wbr>sink</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>Source and Sink for the dataflow</dd></dl><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.Context.html" title="struct flow::compute::render::Context">Context</a></dt><dd>The Context for build a Operator with id of <code>GlobalId</code></dd><dt><a class="struct" href="struct.SubgraphArg.html" title="struct flow::compute::render::SubgraphArg">Subgraph<wbr>Arg</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>The Common argument for all <code>Subgraph</code> in the render process</dd></dl></section></div></main></body></html>

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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="The core of evaluating MFP operator, given a MFP and a input, evaluate the MFP operator, return the output updates And possibly any number of errors that occurred during the evaluation"><title>eval_mfp_core in flow::compute::render::map - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">eval_mfp_core</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>map</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">map</a></div><h1>Function <span class="fn">eval_<wbr>mfp_<wbr>core</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/flow/compute/render/map.rs.html#228-253">Source</a> </span></div><pre class="rust item-decl"><code>fn eval_mfp_core(
input: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = (<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;,
mfp_plan: &amp;<a class="struct" href="../../../expr/linear/struct.MfpPlan.html" title="struct flow::expr::linear::MfpPlan">MfpPlan</a>,
now: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>,
err_collector: &amp;<a class="struct" href="../../types/struct.ErrCollector.html" title="struct flow::compute::types::ErrCollector">ErrCollector</a>,
) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;((<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>), <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>The core of evaluating MFP operator, given a MFP and a input, evaluate the MFP operator,
return the output updates <strong>And</strong> possibly any number of errors that occurred during the evaluation</p>
</div></details></section></div></main></body></html>

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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 `mfp_subgraph` fn in crate `flow`."><title>mfp_subgraph in flow::compute::render::map - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">mfp_subgraph</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>map</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">map</a></div><h1>Function <span class="fn">mfp_<wbr>subgraph</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/flow/compute/render/map.rs.html#155-224">Source</a> </span></div><pre class="rust item-decl"><code>fn mfp_subgraph(
arrange: &amp;<a class="struct" href="../../../utils/struct.ArrangeHandler.html" title="struct flow::utils::ArrangeHandler">ArrangeHandler</a>,
input: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = (<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;,
mfp_plan: &amp;<a class="struct" href="../../../expr/linear/struct.MfpPlan.html" title="struct flow::expr::linear::MfpPlan">MfpPlan</a>,
now: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>,
err_collector: &amp;<a class="struct" href="../../types/struct.ErrCollector.html" title="struct flow::compute::types::ErrCollector">ErrCollector</a>,
scheduler: &amp;<a class="struct" href="../../state/struct.Scheduler.html" title="struct flow::compute::state::Scheduler">Scheduler</a>,
send: &amp;PortCtx&lt;SEND, TeeingHandoff&lt;(<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;&gt;,
)</code></pre></section></div></main></body></html>

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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 `map` mod in crate `flow`."><title>flow::compute::render::map - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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"><!--[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 map</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module map</a></h2><h3><a href="#functions">Module Items</a></h3><ul class="block"><li><a href="#functions" title="Functions">Functions</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In flow::<wbr>compute::<wbr>render</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a></div><h1>Module <span>map</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/flow/compute/render/map.rs.html#15-425">Source</a> </span></div><h2 id="functions" class="section-header">Functions<a href="#functions" class="anchor">§</a></h2><dl class="item-table"><dt><a class="fn" href="fn.eval_mfp_core.html" title="fn flow::compute::render::map::eval_mfp_core">eval_<wbr>mfp_<wbr>core</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt><dd>The core of evaluating MFP operator, given a MFP and a input, evaluate the MFP operator,
return the output updates <strong>And</strong> possibly any number of errors that occurred during the evaluation</dd><dt><a class="fn" href="fn.mfp_subgraph.html" title="fn flow::compute::render::map::mfp_subgraph">mfp_<wbr>subgraph</a><span title="Restricted Visibility">&nbsp;🔒</span> </dt></dl></section></div></main></body></html>

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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 `batch_split_by_key_val` fn in crate `flow`."><title>batch_split_by_key_val in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">batch_split_by_key_val</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">batch_<wbr>split_<wbr>by_<wbr>key_<wbr>val</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/flow/compute/render/reduce.rs.html#291-321">Source</a> </span></div><pre class="rust item-decl"><code>fn batch_split_by_key_val(
batch: &amp;<a class="struct" href="../../../expr/struct.Batch.html" title="struct flow::expr::Batch">Batch</a>,
key_val_plan: &amp;<a class="struct" href="../../../plan/reduce/struct.KeyValPlan.html" title="struct flow::plan::reduce::KeyValPlan">KeyValPlan</a>,
err_collector: &amp;<a class="struct" href="../../types/struct.ErrCollector.html" title="struct flow::compute::types::ErrCollector">ErrCollector</a>,
) -&gt; (<a class="struct" href="../../../expr/struct.Batch.html" title="struct flow::expr::Batch">Batch</a>, <a class="struct" href="../../../expr/struct.Batch.html" title="struct flow::expr::Batch">Batch</a>)</code></pre></section></div></main></body></html>

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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 `check_no_future_updates` fn in crate `flow`."><title>check_no_future_updates in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">check_no_future_updates</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">check_<wbr>no_<wbr>future_<wbr>updates</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/flow/compute/render/reduce.rs.html#1121-1136">Source</a> </span></div><pre class="rust item-decl"><code>fn check_no_future_updates&lt;'a&gt;(
all_arrange_used: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = RwLockWriteGuard&lt;'a, <a class="struct" href="../../../utils/struct.Arrangement.html" title="struct flow::utils::Arrangement">Arrangement</a>&gt;&gt;,
err_collector: &amp;<a class="struct" href="../../types/struct.ErrCollector.html" title="struct flow::compute::types::ErrCollector">ErrCollector</a>,
now: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>,
)</code></pre></section></div></main></body></html>

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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="Eval distinct aggregate functions with distinct input arrange"><title>eval_distinct_aggrs in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">eval_distinct_aggrs</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">eval_<wbr>distinct_<wbr>aggrs</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/flow/compute/render/reduce.rs.html#1070-1119">Source</a> </span></div><pre class="rust item-decl"><code>fn eval_distinct_aggrs(
distinct_aggrs: &amp;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="struct" href="../../../plan/reduce/struct.AggrWithIndex.html" title="struct flow::plan::reduce::AggrWithIndex">AggrWithIndex</a>&gt;,
distinct_input: &amp;<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="struct" href="../../../utils/struct.ArrangeHandler.html" title="struct flow::utils::ArrangeHandler">ArrangeHandler</a>&gt;&gt;,
accums: &amp;[<a class="enum" href="../../../../datatypes/value/enum.Value.html" title="enum datatypes::value::Value">Value</a>],
accum_ranges: &amp;[<a class="struct" href="https://doc.rust-lang.org/nightly/core/ops/range/struct.Range.html" title="struct core::ops::range::Range">Range</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>&gt;],
col_diffs: &amp;[<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;(<a class="enum" href="../../../../datatypes/value/enum.Value.html" title="enum datatypes::value::Value">Value</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;],
accum_output: &amp;mut <a class="struct" href="struct.AccumOutput.html" title="struct flow::compute::render::reduce::AccumOutput">AccumOutput</a>,
_: <a class="struct" href="../struct.SubgraphArg.html" title="struct flow::compute::render::SubgraphArg">SubgraphArg</a>&lt;'_&gt;,
)</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Eval distinct aggregate functions with distinct input arrange</p>
</div></details></section></div></main></body></html>

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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="return distinct rows(distinct by row’s key) from the input, but do not update the arrangement"><title>eval_distinct_core in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">eval_distinct_core</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">eval_<wbr>distinct_<wbr>core</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/flow/compute/render/reduce.rs.html#687-723">Source</a> </span></div><pre class="rust item-decl"><code>fn eval_distinct_core(
arrange: RwLockReadGuard&lt;'_, <a class="struct" href="../../../utils/struct.Arrangement.html" title="struct flow::utils::Arrangement">Arrangement</a>&gt;,
kv: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = ((<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>), <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;,
now: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>,
err_collector: &amp;<a class="struct" href="../../types/struct.ErrCollector.html" title="struct flow::compute::types::ErrCollector">ErrCollector</a>,
) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;((<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>), <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>return distinct rows(distinct by row’s key) from the input, but do not update the arrangement</p>
<p>if the same key already exist, we only preserve the oldest value(It make sense for distinct input over key)</p>
</div></details></section></div></main></body></html>

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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="Eval simple aggregate functions with no distinct input"><title>eval_simple_aggrs in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">eval_simple_aggrs</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">eval_<wbr>simple_<wbr>aggrs</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/flow/compute/render/reduce.rs.html#970-1000">Source</a> </span></div><pre class="rust item-decl"><code>fn eval_simple_aggrs(
simple_aggrs: &amp;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="struct" href="../../../plan/reduce/struct.AggrWithIndex.html" title="struct flow::plan::reduce::AggrWithIndex">AggrWithIndex</a>&gt;,
accums: &amp;[<a class="enum" href="../../../../datatypes/value/enum.Value.html" title="enum datatypes::value::Value">Value</a>],
accum_ranges: &amp;[<a class="struct" href="https://doc.rust-lang.org/nightly/core/ops/range/struct.Range.html" title="struct core::ops::range::Range">Range</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>&gt;],
col_diffs: &amp;[<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;(<a class="enum" href="../../../../datatypes/value/enum.Value.html" title="enum datatypes::value::Value">Value</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;],
accum_output: &amp;mut <a class="struct" href="struct.AccumOutput.html" title="struct flow::compute::render::reduce::AccumOutput">AccumOutput</a>,
err_collector: &amp;<a class="struct" href="../../types/struct.ErrCollector.html" title="struct flow::compute::types::ErrCollector">ErrCollector</a>,
)</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Eval simple aggregate functions with no distinct input</p>
</div></details></section></div></main></body></html>

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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 `from_accum_values_to_live_accums` fn in crate `flow`."><title>from_accum_values_to_live_accums in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">from_accum_values_to_live_accums</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">from_<wbr>accum_<wbr>values_<wbr>to_<wbr>live_<wbr>accums</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/flow/compute/render/reduce.rs.html#270-280">Source</a> </span></div><pre class="rust item-decl"><code>fn from_accum_values_to_live_accums(
accums: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="enum" href="../../../../datatypes/value/enum.Value.html" title="enum datatypes::value::Value">Value</a>&gt;,
len: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="enum" href="../../../../datatypes/value/enum.Value.html" title="enum datatypes::value::Value">Value</a>&gt;&gt;, <a class="enum" href="../../../expr/error/enum.EvalError.html" title="enum flow::expr::error::EvalError">EvalError</a>&gt;</code></pre></section></div></main></body></html>

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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="convert a list of accumulators to a vector of values with first value as offset of end of each accumulator"><title>from_accums_to_offsetted_accum in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">from_accums_to_offsetted_accum</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">from_<wbr>accums_<wbr>to_<wbr>offsetted_<wbr>accum</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/flow/compute/render/reduce.rs.html#1139-1156">Source</a> </span></div><pre class="rust item-decl"><code>fn from_accums_to_offsetted_accum(new_accums: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="enum" href="../../../../datatypes/value/enum.Value.html" title="enum datatypes::value::Value">Value</a>&gt;&gt;) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="enum" href="../../../../datatypes/value/enum.Value.html" title="enum datatypes::value::Value">Value</a>&gt;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>convert a list of accumulators to a vector of values with first value as offset of end of each accumulator</p>
</div></details></section></div></main></body></html>

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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="Convert a value to a list of slice index"><title>from_val_to_slice_idx in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">from_val_to_slice_idx</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">from_<wbr>val_<wbr>to_<wbr>slice_<wbr>idx</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/flow/compute/render/reduce.rs.html#1159-1207">Source</a> </span></div><pre class="rust item-decl"><code>fn from_val_to_slice_idx(
value: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="enum" href="../../../../datatypes/value/enum.Value.html" title="enum datatypes::value::Value">Value</a>&gt;,
expected_len: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/core/ops/range/struct.Range.html" title="struct core::ops::range::Range">Range</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>&gt;&gt;, <a class="enum" href="../../../expr/error/enum.EvalError.html" title="enum flow::expr::error::EvalError">EvalError</a>&gt;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Convert a value to a list of slice index</p>
</div></details></section></div></main></body></html>

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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 `get_col_diffs` fn in crate `flow`."><title>get_col_diffs in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">get_col_diffs</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">get_<wbr>col_<wbr>diffs</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/flow/compute/render/reduce.rs.html#948-967">Source</a> </span></div><pre class="rust item-decl"><code>fn get_col_diffs(
value_diffs: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;(<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;,
row_len: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;(<a class="enum" href="../../../../datatypes/value/enum.Value.html" title="enum datatypes::value::Value">Value</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;&gt;, <a class="enum" href="../../../expr/error/enum.EvalError.html" title="enum flow::expr::error::EvalError">EvalError</a>&gt;</code></pre></section></div></main></body></html>

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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="eval accumulable reduce plan by eval aggregate function and reduce the result"><title>reduce_accum_subgraph in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">reduce_accum_subgraph</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">reduce_<wbr>accum_<wbr>subgraph</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/flow/compute/render/reduce.rs.html#812-946">Source</a> </span></div><pre class="rust item-decl"><code>fn reduce_accum_subgraph(
arrange: &amp;<a class="struct" href="../../../utils/struct.ArrangeHandler.html" title="struct flow::utils::ArrangeHandler">ArrangeHandler</a>,
distinct_input: &amp;<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a>&lt;<a class="struct" href="../../../utils/struct.ArrangeHandler.html" title="struct flow::utils::ArrangeHandler">ArrangeHandler</a>&gt;&gt;,
kv: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = ((<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>), <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;,
accum_plan: &amp;<a class="struct" href="../../../plan/reduce/struct.AccumulablePlan.html" title="struct flow::plan::reduce::AccumulablePlan">AccumulablePlan</a>,
_: <a class="struct" href="../struct.SubgraphArg.html" title="struct flow::compute::render::SubgraphArg">SubgraphArg</a>&lt;'_&gt;,
)</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>eval accumulable reduce plan by eval aggregate function and reduce the result</p>
<p>TODO(discord9): eval distinct by adding distinct input arrangement</p>
<p>invariant: it’is assumed <code>kv</code>’s time is always &lt;= now,
since it’s from a Collection Bundle, where future inserts are stored in arrange</p>
<p>the data being send is just new rows that represent the new output after given input is processed</p>
<p>i.e: for example before new updates comes in, the output of query <code>SELECT sum(number), count(number) FROM table</code>
is (10,2(), and after new updates comes in, the output is (15,3), then the new row being send is ((15, 3), now, 1)</p>
<p>while it will also update key -&gt; accums’s value, for example if it is empty before, it will become something like
|offset| accum for sum | accum for count |
where offset is a single value holding the end offset of each accumulator
and the rest is the actual accumulator values which could be multiple values</p>
</div></details></section></div></main></body></html>

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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 `reduce_batch_subgraph` fn in crate `flow`."><title>reduce_batch_subgraph in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">reduce_batch_subgraph</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">reduce_<wbr>batch_<wbr>subgraph</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/flow/compute/render/reduce.rs.html#356-634">Source</a> </span></div><pre class="rust item-decl"><code>fn reduce_batch_subgraph(
arrange: &amp;<a class="struct" href="../../../utils/struct.ArrangeHandler.html" title="struct flow::utils::ArrangeHandler">ArrangeHandler</a>,
src_data: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = <a class="struct" href="../../../expr/struct.Batch.html" title="struct flow::expr::Batch">Batch</a>&gt;,
key_val_plan: &amp;<a class="struct" href="../../../plan/reduce/struct.KeyValPlan.html" title="struct flow::plan::reduce::KeyValPlan">KeyValPlan</a>,
accum_plan: &amp;<a class="struct" href="../../../plan/reduce/struct.AccumulablePlan.html" title="struct flow::plan::reduce::AccumulablePlan">AccumulablePlan</a>,
output_type: &amp;<a class="struct" href="../../../repr/relation/struct.RelationType.html" title="struct flow::repr::relation::RelationType">RelationType</a>,
_: <a class="struct" href="../struct.SubgraphArg.html" title="struct flow::compute::render::SubgraphArg">SubgraphArg</a>&lt;'_, TeeingHandoff&lt;<a class="struct" href="../../../expr/struct.Batch.html" title="struct flow::expr::Batch">Batch</a>&gt;&gt;,
)</code></pre></section></div></main></body></html>

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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="eval distinct reduce plan, output the distinct, and update the arrangement"><title>reduce_distinct_subgraph in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">reduce_distinct_subgraph</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">reduce_<wbr>distinct_<wbr>subgraph</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/flow/compute/render/reduce.rs.html#771-794">Source</a> </span></div><pre class="rust item-decl"><code>fn reduce_distinct_subgraph(
arrange: &amp;<a class="struct" href="../../../utils/struct.ArrangeHandler.html" title="struct flow::utils::ArrangeHandler">ArrangeHandler</a>,
kv: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = ((<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>), <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;,
_: <a class="struct" href="../struct.SubgraphArg.html" title="struct flow::compute::render::SubgraphArg">SubgraphArg</a>&lt;'_&gt;,
)</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>eval distinct reduce plan, output the distinct, and update the arrangement</p>
<p>invariant: it’is assumed <code>kv</code>’s time is always &lt;= now,
since it’s from a Collection Bundle, where future inserts are stored in arrange</p>
</div></details></section></div></main></body></html>

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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="reduce subgraph, reduce the input data into a single row output is concat from key and val"><title>reduce_subgraph in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">reduce_subgraph</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">reduce_<wbr>subgraph</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/flow/compute/render/reduce.rs.html#638-682">Source</a> </span></div><pre class="rust item-decl"><code>fn reduce_subgraph(
_: &amp;<a class="struct" href="struct.ReduceArrange.html" title="struct flow::compute::render::reduce::ReduceArrange">ReduceArrange</a>,
data: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = (<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;,
key_val_plan: &amp;<a class="struct" href="../../../plan/reduce/struct.KeyValPlan.html" title="struct flow::plan::reduce::KeyValPlan">KeyValPlan</a>,
reduce_plan: &amp;<a class="enum" href="../../../plan/reduce/enum.ReducePlan.html" title="enum flow::plan::reduce::ReducePlan">ReducePlan</a>,
_: <a class="struct" href="../struct.SubgraphArg.html" title="struct flow::compute::render::SubgraphArg">SubgraphArg</a>&lt;'_&gt;,
)</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>reduce subgraph, reduce the input data into a single row
output is concat from key and val</p>
</div></details></section></div></main></body></html>

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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="split a row into key and val by evaluate the key and val plan"><title>split_rows_to_key_val in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">split_rows_to_key_val</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">split_<wbr>rows_<wbr>to_<wbr>key_<wbr>val</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/flow/compute/render/reduce.rs.html#324-354">Source</a> </span></div><pre class="rust item-decl"><code>fn split_rows_to_key_val(
rows: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = (<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;,
key_val_plan: <a class="struct" href="../../../plan/reduce/struct.KeyValPlan.html" title="struct flow::plan::reduce::KeyValPlan">KeyValPlan</a>,
err_collector: <a class="struct" href="../../types/struct.ErrCollector.html" title="struct flow::compute::types::ErrCollector">ErrCollector</a>,
) -&gt; impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = ((<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>), <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>split a row into key and val by evaluate the key and val plan</p>
</div></details></section></div></main></body></html>

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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="eval distinct reduce plan, output the distinct, and update the arrangement"><title>update_reduce_distinct_arrange in flow::compute::render::reduce - 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-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="flow" data-themes="" data-resource-suffix="" data-rustdoc-version="1.92.0-nightly (fa3155a64 2025-09-30)" data-channel="nightly" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-828709d0.js" data-settings-js="settings-c38705f0.js" ><script src="../../../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-ce535bd0.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-263c88ec.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 fn"><!--[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="#">update_reduce_distinct_arrange</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../flow/index.html">flow</a><span class="version">1.0.0-rc.2</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In flow::<wbr>compute::<wbr>render::<wbr>reduce</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"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">flow</a>::<wbr><a href="../../index.html">compute</a>::<wbr><a href="../index.html">render</a>::<wbr><a href="index.html">reduce</a></div><h1>Function <span class="fn">update_<wbr>reduce_<wbr>distinct_<wbr>arrange</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/flow/compute/render/reduce.rs.html#728-765">Source</a> </span></div><pre class="rust item-decl"><code>fn update_reduce_distinct_arrange(
arrange: &amp;<a class="struct" href="../../../utils/struct.ArrangeHandler.html" title="struct flow::utils::ArrangeHandler">ArrangeHandler</a>,
kv: impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = ((<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>), <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;,
now: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>,
err_collector: &amp;<a class="struct" href="../../types/struct.ErrCollector.html" title="struct flow::compute::types::ErrCollector">ErrCollector</a>,
) -&gt; impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a>&lt;Item = (<a class="struct" href="../../../repr/struct.Row.html" title="struct flow::repr::Row">Row</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>)&gt;</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>eval distinct reduce plan, output the distinct, and update the arrangement</p>
<p>This function is extracted because also want to use it to update distinct input of accumulable reduce plan</p>
</div></details></section></div></main></body></html>

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</div></details></section></div></main></body></html>

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