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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.rel.metadata</a></div>
<h1 title="Interface BuiltInMetadata.LowerBoundCost.Handler" class="title">Interface BuiltInMetadata.LowerBoundCost.Handler</h1>
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<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Superinterfaces:</dt>
<dd><code><a href="MetadataHandler.html" title="interface in org.apache.calcite.rel.metadata">MetadataHandler</a>&lt;<a href="BuiltInMetadata.LowerBoundCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.LowerBoundCost</a>&gt;</code></dd>
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<dt>Enclosing interface:</dt>
<dd><a href="BuiltInMetadata.LowerBoundCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.LowerBoundCost</a></dd>
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<dt>Functional Interface:</dt>
<dd>This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.</dd>
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<div class="type-signature"><span class="annotations"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/FunctionalInterface.html" title="class or interface in java.lang" class="external-link">@FunctionalInterface</a>
</span><span class="modifiers">public static interface </span><span class="element-name type-name-label">BuiltInMetadata.LowerBoundCost.Handler</span><span class="extends-implements">
extends <a href="MetadataHandler.html" title="interface in org.apache.calcite.rel.metadata">MetadataHandler</a>&lt;<a href="BuiltInMetadata.LowerBoundCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.LowerBoundCost</a>&gt;</span></div>
<div class="block">Handler API.</div>
</section>
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<h2>Method Summary</h2>
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<div class="table-header col-first">Modifier and Type</div>
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<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code>default <a href="MetadataDef.html" title="class in org.apache.calcite.rel.metadata">MetadataDef</a>&lt;<a href="BuiltInMetadata.LowerBoundCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.LowerBoundCost</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code><a href="#getDef()" class="member-name-link">getDef</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="../../plan/RelOptCost.html" title="interface in org.apache.calcite.plan">RelOptCost</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getLowerBoundCost(org.apache.calcite.rel.RelNode,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.plan.volcano.VolcanoPlanner)" class="member-name-link">getLowerBoundCost</a><wbr>(<a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;r,
<a href="RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq,
<a href="../../plan/volcano/VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a>&nbsp;planner)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
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<h2>Method Details</h2>
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<section class="detail" id="getLowerBoundCost(org.apache.calcite.rel.RelNode,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.plan.volcano.VolcanoPlanner)">
<h3>getLowerBoundCost</h3>
<div class="member-signature"><span class="return-type"><a href="../../plan/RelOptCost.html" title="interface in org.apache.calcite.plan">RelOptCost</a></span>&nbsp;<span class="element-name">getLowerBoundCost</span><wbr><span class="parameters">(<a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;r,
<a href="RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq,
<a href="../../plan/volcano/VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a>&nbsp;planner)</span></div>
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<h3>getDef</h3>
<div class="member-signature"><span class="modifiers">default</span>&nbsp;<span class="return-type"><a href="MetadataDef.html" title="class in org.apache.calcite.rel.metadata">MetadataDef</a>&lt;<a href="BuiltInMetadata.LowerBoundCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.LowerBoundCost</a>&gt;</span>&nbsp;<span class="element-name">getDef</span>()</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="MetadataHandler.html#getDef()">getDef</a></code>&nbsp;in interface&nbsp;<code><a href="MetadataHandler.html" title="interface in org.apache.calcite.rel.metadata">MetadataHandler</a>&lt;<a href="BuiltInMetadata.LowerBoundCost.html" title="interface in org.apache.calcite.rel.metadata">BuiltInMetadata.LowerBoundCost</a>&gt;</code></dd>
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