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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="Region Engine’s definition"><title>store_api::region_engine - 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="store_api" 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 region_engine</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../store_api/index.html">store_<wbr>api</a><span class="version">1.0.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module region_<wbr>engine</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="#traits" title="Traits">Traits</a></li><li><a href="#types" title="Type Aliases">Type Aliases</a></li></ul></section><div id="rustdoc-modnav"><h2 class="in-crate"><a href="../index.html">In crate store_<wbr>api</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">store_api</a></div><h1>Module <span>region_<wbr>engine</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/store_api/region_engine.rs.html#15-1047">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Region Engine’s definition</p>
</div></details><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.GrantedRegion.html" title="struct store_api::region_engine::GrantedRegion">Granted<wbr>Region</a></dt><dt><a class="struct" href="struct.MitoCopyRegionFromRequest.html" title="struct store_api::region_engine::MitoCopyRegionFromRequest">Mito<wbr>Copy<wbr>Region<wbr>From<wbr>Request</a></dt><dd>Request to copy files from a source region to a target region.</dd><dt><a class="struct" href="struct.MitoCopyRegionFromResponse.html" title="struct store_api::region_engine::MitoCopyRegionFromResponse">Mito<wbr>Copy<wbr>Region<wbr>From<wbr>Response</a></dt><dt><a class="struct" href="struct.PartitionRange.html" title="struct store_api::region_engine::PartitionRange">Partition<wbr>Range</a></dt><dd>Represents one data range within a partition</dd><dt><a class="struct" href="struct.PrepareRequest.html" title="struct store_api::region_engine::PrepareRequest">Prepare<wbr>Request</a></dt><dd>Request to override the scanner properties.</dd><dt><a class="struct" href="struct.QueryScanContext.html" title="struct store_api::region_engine::QueryScanContext">Query<wbr>Scan<wbr>Context</a></dt><dd>Necessary context of the query for the scanner.</dd><dt><a class="struct" href="struct.RegionStatistic.html" title="struct store_api::region_engine::RegionStatistic">Region<wbr>Statistic</a></dt><dd>Represents the statistics of a region.</dd><dt><a class="struct" href="struct.RemapManifestsRequest.html" title="struct store_api::region_engine::RemapManifestsRequest">Remap<wbr>Manifests<wbr>Request</a></dt><dd>Request to remap manifests from old regions to new regions.</dd><dt><a class="struct" href="struct.RemapManifestsResponse.html" title="struct store_api::region_engine::RemapManifestsResponse">Remap<wbr>Manifests<wbr>Response</a></dt><dd>Response to remap manifests from old regions to new regions.</dd><dt><a class="struct" href="struct.ScannerProperties.html" title="struct store_api::region_engine::ScannerProperties">Scanner<wbr>Properties</a></dt><dd>Properties of the <a href="trait.RegionScanner.html" title="trait store_api::region_engine::RegionScanner">RegionScanner</a>.</dd><dt><a class="struct" href="struct.SetRegionRoleStateRequest.html" title="struct store_api::region_engine::SetRegionRoleStateRequest">SetRegion<wbr>Role<wbr>State<wbr>Request</a></dt><dd>The request to set region role state.</dd><dt><a class="struct" href="struct.SinglePartitionScanner.html" title="struct store_api::region_engine::SinglePartitionScanner">Single<wbr>Partition<wbr>Scanner</a></dt><dd>A <a href="trait.RegionScanner.html" title="trait store_api::region_engine::RegionScanner">RegionScanner</a> that only scans a single partition.</dd></dl><h2 id="enums" class="section-header">Enums<a href="#enums" class="anchor">§</a></h2><dl class="item-table"><dt><a class="enum" href="enum.RegionManifestInfo.html" title="enum store_api::region_engine::RegionManifestInfo">Region<wbr>Manifest<wbr>Info</a></dt><dd>The manifest info of a region.</dd><dt><a class="enum" href="enum.RegionRole.html" title="enum store_api::region_engine::RegionRole">Region<wbr>Role</a></dt><dd>The role of the region.
TODO(weny): rename it to <code>RegionRoleState</code></dd><dt><a class="enum" href="enum.ScannerPartitioning.html" title="enum store_api::region_engine::ScannerPartitioning">Scanner<wbr>Partitioning</a></dt><dd>Output partition properties of the <a href="trait.RegionScanner.html" title="trait store_api::region_engine::RegionScanner">RegionScanner</a>.</dd><dt><a class="enum" href="enum.SetRegionRoleStateResponse.html" title="enum store_api::region_engine::SetRegionRoleStateResponse">SetRegion<wbr>Role<wbr>State<wbr>Response</a></dt><dd>The response of setting region role state.</dd><dt><a class="enum" href="enum.SetRegionRoleStateSuccess.html" title="enum store_api::region_engine::SetRegionRoleStateSuccess">SetRegion<wbr>Role<wbr>State<wbr>Success</a></dt><dd>The success response of setting region role state.</dd><dt><a class="enum" href="enum.SettableRegionRoleState.html" title="enum store_api::region_engine::SettableRegionRoleState">Settable<wbr>Region<wbr>Role<wbr>State</a></dt><dd>The settable region role state.</dd><dt><a class="enum" href="enum.SyncRegionFromRequest.html" title="enum store_api::region_engine::SyncRegionFromRequest">Sync<wbr>Region<wbr>From<wbr>Request</a></dt><dd>Request to sync the region from a manifest or a region.</dd><dt><a class="enum" href="enum.SyncRegionFromResponse.html" title="enum store_api::region_engine::SyncRegionFromResponse">Sync<wbr>Region<wbr>From<wbr>Response</a></dt><dd>The response of syncing the region.</dd></dl><h2 id="traits" class="section-header">Traits<a href="#traits" class="anchor">§</a></h2><dl class="item-table"><dt><a class="trait" href="trait.RegionEngine.html" title="trait store_api::region_engine::RegionEngine">Region<wbr>Engine</a></dt><dt><a class="trait" href="trait.RegionScanner.html" title="trait store_api::region_engine::RegionScanner">Region<wbr>Scanner</a></dt><dd>A scanner that provides a way to scan the region concurrently.</dd></dl><h2 id="types" class="section-header">Type Aliases<a href="#types" class="anchor">§</a></h2><dl class="item-table"><dt><a class="type" href="type.BatchResponses.html" title="type store_api::region_engine::BatchResponses">Batch<wbr>Responses</a></dt><dt><a class="type" href="type.RegionEngineRef.html" title="type store_api::region_engine::RegionEngineRef">Region<wbr>Engine<wbr>Ref</a></dt><dt><a class="type" href="type.RegionScannerRef.html" title="type store_api::region_engine::RegionScannerRef">Region<wbr>Scanner<wbr>Ref</a></dt></dl></section></div></main></body></html>

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window.SIDEBAR_ITEMS = {"enum":["RegionManifestInfo","RegionRole","ScannerPartitioning","SetRegionRoleStateResponse","SetRegionRoleStateSuccess","SettableRegionRoleState","SyncRegionFromRequest","SyncRegionFromResponse"],"struct":["GrantedRegion","MitoCopyRegionFromRequest","MitoCopyRegionFromResponse","PartitionRange","PrepareRequest","QueryScanContext","RegionStatistic","RemapManifestsRequest","RemapManifestsResponse","ScannerProperties","SetRegionRoleStateRequest","SinglePartitionScanner"],"trait":["RegionEngine","RegionScanner"],"type":["BatchResponses","RegionEngineRef","RegionScannerRef"]};

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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="A scanner that provides a way to scan the region concurrently."><title>RegionScanner in store_api::region_engine - 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="store_api" 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 trait"><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="#">RegionScanner</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../store_api/index.html">store_<wbr>api</a><span class="version">1.0.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Region<wbr>Scanner</a></h2><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.add_dyn_filter_to_predicate" title="add_dyn_filter_to_predicate">add_dyn_filter_to_predicate</a></li><li><a href="#tymethod.has_predicate_without_region" title="has_predicate_without_region">has_predicate_without_region</a></li><li><a href="#tymethod.metadata" title="metadata">metadata</a></li><li><a href="#tymethod.name" title="name">name</a></li><li><a href="#tymethod.prepare" title="prepare">prepare</a></li><li><a href="#tymethod.properties" title="properties">properties</a></li><li><a href="#tymethod.scan_partition" title="scan_partition">scan_partition</a></li><li><a href="#tymethod.schema" title="schema">schema</a></li><li><a href="#tymethod.set_logical_region" title="set_logical_region">set_logical_region</a></li></ul><h3><a href="#provided-methods">Provided Methods</a></h3><ul class="block"><li><a href="#method.snapshot_sequence" title="snapshot_sequence">snapshot_sequence</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In store_<wbr>api::<wbr>region_<wbr>engine</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">store_api</a>::<wbr><a href="index.html">region_engine</a></div><h1>Trait <span class="trait">Region<wbr>Scanner</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/store_api/region_engine.rs.html#431-477">Source</a> </span></div><pre class="rust item-decl"><code>pub trait RegionScanner:
<a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>
+ DisplayAs
+ <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> {
// Required methods
fn <a href="#tymethod.name" class="fn">name</a>(&amp;self) -&gt; &amp;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>;
<span class="item-spacer"></span> fn <a href="#tymethod.properties" class="fn">properties</a>(&amp;self) -&gt; &amp;<a class="struct" href="struct.ScannerProperties.html" title="struct store_api::region_engine::ScannerProperties">ScannerProperties</a>;
<span class="item-spacer"></span> fn <a href="#tymethod.schema" class="fn">schema</a>(&amp;self) -&gt; <a class="type" href="../storage/type.SchemaRef.html" title="type store_api::storage::SchemaRef">SchemaRef</a>;
<span class="item-spacer"></span> fn <a href="#tymethod.metadata" class="fn">metadata</a>(&amp;self) -&gt; <a class="type" href="../metadata/type.RegionMetadataRef.html" title="type store_api::metadata::RegionMetadataRef">RegionMetadataRef</a>;
<span class="item-spacer"></span> fn <a href="#tymethod.prepare" class="fn">prepare</a>(&amp;mut self, request: <a class="struct" href="struct.PrepareRequest.html" title="struct store_api::region_engine::PrepareRequest">PrepareRequest</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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, BoxedError&gt;;
<span class="item-spacer"></span> fn <a href="#tymethod.scan_partition" class="fn">scan_partition</a>(
&amp;self,
ctx: &amp;<a class="struct" href="struct.QueryScanContext.html" title="struct store_api::region_engine::QueryScanContext">QueryScanContext</a>,
metrics_set: &amp;ExecutionPlanMetricsSet,
partition: <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;SendableRecordBatchStream, BoxedError&gt;;
<span class="item-spacer"></span> fn <a href="#tymethod.has_predicate_without_region" class="fn">has_predicate_without_region</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>;
<span class="item-spacer"></span> fn <a href="#tymethod.add_dyn_filter_to_predicate" class="fn">add_dyn_filter_to_predicate</a>(
&amp;mut self,
filter_exprs: <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/sync/struct.Arc.html" title="struct alloc::sync::Arc">Arc</a>&lt;dyn PhysicalExpr&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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>&gt;;
<span class="item-spacer"></span> fn <a href="#tymethod.set_logical_region" class="fn">set_logical_region</a>(&amp;mut self, logical_region: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>);
// Provided method
fn <a href="#method.snapshot_sequence" class="fn">snapshot_sequence</a>(&amp;self) -&gt; <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="type" href="../storage/type.SequenceNumber.html" title="type store_api::storage::SequenceNumber">SequenceNumber</a>&gt; { ... }
}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A scanner that provides a way to scan the region concurrently.</p>
<p>The scanner splits the region into partitions so that each partition can be scanned concurrently.
You can use this trait to implement an <a href="datafusion_physical_plan::ExecutionPlan"><code>ExecutionPlan</code></a>.</p>
</div></details><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><section id="tymethod.name" class="method"><a class="src rightside" href="../../src/store_api/region_engine.rs.html#432">Source</a><h4 class="code-header">fn <a href="#tymethod.name" class="fn">name</a>(&amp;self) -&gt; &amp;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></h4></section><details class="toggle method-toggle" open><summary><section id="tymethod.properties" class="method"><a class="src rightside" href="../../src/store_api/region_engine.rs.html#435">Source</a><h4 class="code-header">fn <a href="#tymethod.properties" class="fn">properties</a>(&amp;self) -&gt; &amp;<a class="struct" href="struct.ScannerProperties.html" title="struct store_api::region_engine::ScannerProperties">ScannerProperties</a></h4></section></summary><div class="docblock"><p>Returns the properties of the scanner.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.schema" class="method"><a class="src rightside" href="../../src/store_api/region_engine.rs.html#438">Source</a><h4 class="code-header">fn <a href="#tymethod.schema" class="fn">schema</a>(&amp;self) -&gt; <a class="type" href="../storage/type.SchemaRef.html" title="type store_api::storage::SchemaRef">SchemaRef</a></h4></section></summary><div class="docblock"><p>Returns the schema of the record batches.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.metadata" class="method"><a class="src rightside" href="../../src/store_api/region_engine.rs.html#441">Source</a><h4 class="code-header">fn <a href="#tymethod.metadata" class="fn">metadata</a>(&amp;self) -&gt; <a class="type" href="../metadata/type.RegionMetadataRef.html" title="type store_api::metadata::RegionMetadataRef">RegionMetadataRef</a></h4></section></summary><div class="docblock"><p>Returns the metadata of the region.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.prepare" class="method"><a class="src rightside" href="../../src/store_api/region_engine.rs.html#446">Source</a><h4 class="code-header">fn <a href="#tymethod.prepare" class="fn">prepare</a>(&amp;mut self, request: <a class="struct" href="struct.PrepareRequest.html" title="struct store_api::region_engine::PrepareRequest">PrepareRequest</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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, BoxedError&gt;</h4></section></summary><div class="docblock"><p>Prepares the scanner with the given partition ranges.</p>
<p>This method is for the planner to adjust the scanner’s behavior based on the partition ranges.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.scan_partition" class="method"><a class="src rightside" href="../../src/store_api/region_engine.rs.html#452-457">Source</a><h4 class="code-header">fn <a href="#tymethod.scan_partition" class="fn">scan_partition</a>(
&amp;self,
ctx: &amp;<a class="struct" href="struct.QueryScanContext.html" title="struct store_api::region_engine::QueryScanContext">QueryScanContext</a>,
metrics_set: &amp;ExecutionPlanMetricsSet,
partition: <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;SendableRecordBatchStream, BoxedError&gt;</h4></section></summary><div class="docblock"><p>Scans the partition and returns a stream of record batches.</p>
<h5 id="panics"><a class="doc-anchor" href="#panics">§</a>Panics</h5>
<p>Panics if the <code>partition</code> is out of bound.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.has_predicate_without_region" class="method"><a class="src rightside" href="../../src/store_api/region_engine.rs.html#460">Source</a><h4 class="code-header">fn <a href="#tymethod.has_predicate_without_region" class="fn">has_predicate_without_region</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Check if there is any predicate exclude region partition exprs that may be executed in this scanner.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.add_dyn_filter_to_predicate" class="method"><a class="src rightside" href="../../src/store_api/region_engine.rs.html#466-469">Source</a><h4 class="code-header">fn <a href="#tymethod.add_dyn_filter_to_predicate" class="fn">add_dyn_filter_to_predicate</a>(
&amp;mut self,
filter_exprs: <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/sync/struct.Arc.html" title="struct alloc::sync::Arc">Arc</a>&lt;dyn PhysicalExpr&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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>&gt;</h4></section></summary><div class="docblock"><p>Add the given dynamic filter expressions to the predicate of the scanner.
Returns a vector of booleans indicating which filter expressions were applied.
true indicates the filter expression was applied(will be use by scanner to prune by stat for row group),
false otherwise.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.set_logical_region" class="method"><a class="src rightside" href="../../src/store_api/region_engine.rs.html#472">Source</a><h4 class="code-header">fn <a href="#tymethod.set_logical_region" class="fn">set_logical_region</a>(&amp;mut self, logical_region: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>)</h4></section></summary><div class="docblock"><p>Sets whether the scanner is reading a logical region.</p>
</div></details></div><h2 id="provided-methods" class="section-header">Provided Methods<a href="#provided-methods" class="anchor">§</a></h2><div class="methods"><section id="method.snapshot_sequence" class="method"><a class="src rightside" href="../../src/store_api/region_engine.rs.html#474-476">Source</a><h4 class="code-header">fn <a href="#method.snapshot_sequence" class="fn">snapshot_sequence</a>(&amp;self) -&gt; <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="type" href="../storage/type.SequenceNumber.html" title="type store_api::storage::SequenceNumber">SequenceNumber</a>&gt;</h4></section></div><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><div class="negative-marker"></div><section id="impl-RegionScanner-for-SinglePartitionScanner" class="impl"><a class="src rightside" href="../../src/store_api/region_engine.rs.html#988-1041">Source</a><a href="#impl-RegionScanner-for-SinglePartitionScanner" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.RegionScanner.html" title="trait store_api::region_engine::RegionScanner">RegionScanner</a> for <a class="struct" href="struct.SinglePartitionScanner.html" title="struct store_api::region_engine::SinglePartitionScanner">SinglePartitionScanner</a></h3></section></div><script src="../../trait.impl/store_api/region_engine/trait.RegionScanner.js" async></script></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 `BatchResponses` type in crate `store_api`."><title>BatchResponses in store_api::region_engine - 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="store_api" 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 type"><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="#">BatchResponses</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../store_api/index.html">store_<wbr>api</a><span class="version">1.0.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Batch<wbr>Responses</a></h2><h3><a href="#aliased-type">Aliased Type</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In store_<wbr>api::<wbr>region_<wbr>engine</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">store_api</a>::<wbr><a href="index.html">region_engine</a></div><h1>Type Alias <span class="type">Batch<wbr>Responses</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/store_api/region_engine.rs.html#481">Source</a> </span></div><pre class="rust item-decl"><code>pub type BatchResponses = <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="../storage/struct.RegionId.html" title="struct store_api::storage::RegionId">RegionId</a>, <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;RegionResponse, BoxedError&gt;)&gt;;</code></pre><h2 id="aliased-type" class="section-header">Aliased Type<a href="#aliased-type" class="anchor">§</a></h2><pre class="rust item-decl"><code>pub struct BatchResponses { <span class="comment">/* private fields */</span> }</code></pre><script src="../../type.impl/alloc/vec/struct.Vec.js" data-self-path="store_api::region_engine::BatchResponses" async></script></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 `RegionEngineRef` type in crate `store_api`."><title>RegionEngineRef in store_api::region_engine - 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="store_api" 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 type"><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="#">RegionEngineRef</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../store_api/index.html">store_<wbr>api</a><span class="version">1.0.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Region<wbr>Engine<wbr>Ref</a></h2><h3><a href="#aliased-type">Aliased Type</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In store_<wbr>api::<wbr>region_<wbr>engine</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">store_api</a>::<wbr><a href="index.html">region_engine</a></div><h1>Type Alias <span class="type">Region<wbr>Engine<wbr>Ref</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/store_api/region_engine.rs.html#952">Source</a> </span></div><pre class="rust item-decl"><code>pub type RegionEngineRef = <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/sync/struct.Arc.html" title="struct alloc::sync::Arc">Arc</a>&lt;dyn <a class="trait" href="trait.RegionEngine.html" title="trait store_api::region_engine::RegionEngine">RegionEngine</a>&gt;;</code></pre><h2 id="aliased-type" class="section-header">Aliased Type<a href="#aliased-type" class="anchor">§</a></h2><pre class="rust item-decl"><code>pub struct RegionEngineRef { <span class="comment">/* private fields */</span> }</code></pre><script src="../../type.impl/alloc/sync/struct.Arc.js" data-self-path="store_api::region_engine::RegionEngineRef" async></script></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 `RegionScannerRef` type in crate `store_api`."><title>RegionScannerRef in store_api::region_engine - 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="store_api" 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 type"><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="#">RegionScannerRef</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../store_api/index.html">store_<wbr>api</a><span class="version">1.0.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Region<wbr>Scanner<wbr>Ref</a></h2><h3><a href="#aliased-type">Aliased Type</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In store_<wbr>api::<wbr>region_<wbr>engine</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">store_api</a>::<wbr><a href="index.html">region_engine</a></div><h1>Type Alias <span class="type">Region<wbr>Scanner<wbr>Ref</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/store_api/region_engine.rs.html#479">Source</a> </span></div><pre class="rust item-decl"><code>pub type RegionScannerRef = <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="trait.RegionScanner.html" title="trait store_api::region_engine::RegionScanner">RegionScanner</a>&gt;;</code></pre><h2 id="aliased-type" class="section-header">Aliased Type<a href="#aliased-type" class="anchor">§</a></h2><pre class="rust item-decl"><code>pub struct RegionScannerRef(<span class="comment">/* private fields */</span>);</code></pre><script src="../../type.impl/alloc/boxed/struct.Box.js" data-self-path="store_api::region_engine::RegionScannerRef" async></script></section></div></main></body></html>