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<h2 title="Uses of Class org.apache.calcite.plan.volcano.RelSubset" class="title">Uses of Class<br>org.apache.calcite.plan.volcano.RelSubset</h2>
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<div class="classUseContainer">
<ul class="blockList">
<li class="blockList">
<table class="useSummary">
<caption><span>Packages that use <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Package</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.plan.volcano">org.apache.calcite.plan.volcano</a></th>
<td class="colLast">
<div class="block">Optimizes relational expressions.</div>
</td>
</tr>
<tr class="rowColor">
<th class="colFirst" scope="row"><a href="#org.apache.calcite.rel.metadata">org.apache.calcite.rel.metadata</a></th>
<td class="colLast">
<div class="block">Defines metadata interfaces and utilities for relational
expressions.</div>
</td>
</tr>
</tbody>
</table>
</li>
<li class="blockList">
<ul class="blockList">
<li class="blockList">
<section role="region"><a id="org.apache.calcite.plan.volcano">
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<h3>Uses of <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a> in <a href="../package-summary.html">org.apache.calcite.plan.volcano</a></h3>
<table class="useSummary">
<caption><span>Fields in <a href="../package-summary.html">org.apache.calcite.plan.volcano</a> declared as <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Field</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#root">root</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoRuleMatch.</span><code><span class="memberNameLink"><a href="../VolcanoRuleMatch.html#targetSubset">targetSubset</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
</tbody>
</table>
<table class="useSummary">
<caption><span>Fields in <a href="../package-summary.html">org.apache.calcite.plan.volcano</a> with type parameters of type <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Field</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>(package private) java.util.Set&lt;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.</span><code><span class="memberNameLink"><a href="../RuleQueue.html#boostedSubsets">boostedSubsets</a></span></code></th>
<td class="colLast">
<div class="block">The set of RelSubsets whose importance is currently in an artificially
raised state.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) java.util.Set&lt;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelSubset.DeadEndFinder.</span><code><span class="memberNameLink"><a href="../RelSubset.DeadEndFinder.html#deadEnds">deadEnds</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private java.util.IdentityHashMap&lt;<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>,&#8203;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#mapRel2Subset">mapRel2Subset</a></span></code></th>
<td class="colLast">
<div class="block">Map each registered expression (<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel"><code>RelNode</code></a>) to its equivalence set
(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano"><code>RelSubset</code></a>).</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) com.google.common.collect.Multimap&lt;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>,&#8203;<a href="../VolcanoRuleMatch.html" title="class in org.apache.calcite.plan.volcano">VolcanoRuleMatch</a>&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.PhaseMatchList.</span><code><span class="memberNameLink"><a href="../RuleQueue.PhaseMatchList.html#matchMap">matchMap</a></span></code></th>
<td class="colLast">
<div class="block">Multi-map of RelSubset to VolcanoRuleMatches.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private com.google.common.collect.Ordering&lt;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.</span><code><span class="memberNameLink"><a href="../RuleQueue.html#relImportanceOrdering">relImportanceOrdering</a></span></code></th>
<td class="colLast">
<div class="block">Compares relexps according to their cached 'importance'.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) java.util.Map&lt;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>,&#8203;java.lang.Double&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.</span><code><span class="memberNameLink"><a href="../RuleQueue.html#subsetImportances">subsetImportances</a></span></code></th>
<td class="colLast">
<div class="block">The importance of each subset.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) java.util.List&lt;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelSet.</span><code><span class="memberNameLink"><a href="../RelSet.html#subsets">subsets</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
</tbody>
</table>
<table class="useSummary">
<caption><span>Methods in <a href="../package-summary.html">org.apache.calcite.plan.volcano</a> that return <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code><a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelSet.</span><code><span class="memberNameLink"><a href="../RelSet.html#add(org.apache.calcite.rel.RelNode)">add</a></span>&#8203;(<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel)</code></th>
<td class="colLast">
<div class="block">Adds a relational expression to a set, with its results available under a
particular calling convention.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#addRelToSet(org.apache.calcite.rel.RelNode,org.apache.calcite.plan.volcano.RelSet)">addRelToSet</a></span>&#8203;(<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel,
<a href="../RelSet.html" title="class in org.apache.calcite.plan.volcano">RelSet</a>&nbsp;set)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#canonize(org.apache.calcite.plan.volcano.RelSubset)">canonize</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;subset)</code></th>
<td class="colLast">
<div class="block">If a subset has one or more equivalent subsets (owing to a set having
merged with another), returns the subset which is the leader of the
equivalence class.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#ensureRegistered(org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode)">ensureRegistered</a></span>&#8203;(<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel,
<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;equivRel)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelSet.</span><code><span class="memberNameLink"><a href="../RelSet.html#getOrCreateSubset(org.apache.calcite.plan.RelOptCluster,org.apache.calcite.plan.RelTraitSet)">getOrCreateSubset</a></span>&#8203;(<a href="../../RelOptCluster.html" title="class in org.apache.calcite.plan">RelOptCluster</a>&nbsp;cluster,
<a href="../../RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a>&nbsp;traits)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelSet.</span><code><span class="memberNameLink"><a href="../RelSet.html#getSubset(org.apache.calcite.plan.RelTraitSet)">getSubset</a></span>&#8203;(<a href="../../RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a>&nbsp;traits)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#getSubset(org.apache.calcite.rel.RelNode)">getSubset</a></span>&#8203;(<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel)</code></th>
<td class="colLast">
<div class="block">Returns the subset that a relational expression belongs to.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#getSubset(org.apache.calcite.rel.RelNode,org.apache.calcite.plan.RelTraitSet)">getSubset</a></span>&#8203;(<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel,
<a href="../../RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a>&nbsp;traits)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#getSubset(org.apache.calcite.rel.RelNode,org.apache.calcite.plan.RelTraitSet,boolean)">getSubset</a></span>&#8203;(<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel,
<a href="../../RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a>&nbsp;traits,
boolean&nbsp;createIfMissing)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoRuleMatch.</span><code><span class="memberNameLink"><a href="../VolcanoRuleMatch.html#guessSubset()">guessSubset</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns a guess as to which subset (that is equivalence class of
relational expressions combined with a set of physical traits) the result
of this rule will belong to.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#register(org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode)">register</a></span>&#8203;(<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel,
<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;equivRel)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#registerImpl(org.apache.calcite.rel.RelNode,org.apache.calcite.plan.volcano.RelSet)">registerImpl</a></span>&#8203;(<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel,
<a href="../RelSet.html" title="class in org.apache.calcite.plan.volcano">RelSet</a>&nbsp;set)</code></th>
<td class="colLast">
<div class="block">Registers a new expression <code>exp</code> and queues up rule matches.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#registerSubset(org.apache.calcite.plan.volcano.RelSet,org.apache.calcite.plan.volcano.RelSubset)">registerSubset</a></span>&#8203;(<a href="../RelSet.html" title="class in org.apache.calcite.plan.volcano">RelSet</a>&nbsp;set,
<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;subset)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
</tbody>
</table>
<table class="useSummary">
<caption><span>Methods in <a href="../package-summary.html">org.apache.calcite.plan.volcano</a> that return types with arguments of type <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>(package private) java.util.Set&lt;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelSubset.</span><code><span class="memberNameLink"><a href="../RelSubset.html#getParentSubsets(org.apache.calcite.plan.volcano.VolcanoPlanner)">getParentSubsets</a></span>&#8203;(<a href="../VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a>&nbsp;planner)</code></th>
<td class="colLast">
<div class="block">Returns the collection of distinct subsets that contain a RelNode one
of whose inputs is in this subset.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private static java.util.List&lt;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelSubset.</span><code><span class="memberNameLink"><a href="../RelSubset.html#inputSubsets(org.apache.calcite.rel.RelNode)">inputSubsets</a></span>&#8203;(<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;parent)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
</tbody>
</table>
<table class="useSummary">
<caption><span>Methods in <a href="../package-summary.html">org.apache.calcite.plan.volcano</a> with parameters of type <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelSet.</span><code><span class="memberNameLink"><a href="../RelSet.html#addAbstractConverters(org.apache.calcite.plan.volcano.VolcanoPlanner,org.apache.calcite.plan.RelOptCluster,org.apache.calcite.plan.volcano.RelSubset,boolean)">addAbstractConverters</a></span>&#8203;(<a href="../VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a>&nbsp;planner,
<a href="../../RelOptCluster.html" title="class in org.apache.calcite.plan">RelOptCluster</a>&nbsp;cluster,
<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;subset,
boolean&nbsp;subsetToOthers)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#canonize(org.apache.calcite.plan.volcano.RelSubset)">canonize</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;subset)</code></th>
<td class="colLast">
<div class="block">If a subset has one or more equivalent subsets (owing to a set having
merged with another), returns the subset which is the leader of the
equivalence class.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.RelImportanceComparator.</span><code><span class="memberNameLink"><a href="../RuleQueue.RelImportanceComparator.html#compare(org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.plan.volcano.RelSubset)">compare</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel1,
<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel2)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) double</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.</span><code><span class="memberNameLink"><a href="../RuleQueue.html#computeImportance(org.apache.calcite.plan.volcano.RelSubset)">computeImportance</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;subset)</code></th>
<td class="colLast">
<div class="block">Computes the <dfn>importance</dfn> of a node.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private double</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.</span><code><span class="memberNameLink"><a href="../RuleQueue.html#computeImportanceOfChild(org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.plan.volcano.RelSubset)">computeImportanceOfChild</a></span>&#8203;(<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq,
<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;child,
<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;parent)</code></th>
<td class="colLast">
<div class="block">Returns the importance of a child to a parent.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) double</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.</span><code><span class="memberNameLink"><a href="../RuleQueue.html#getImportance(org.apache.calcite.plan.volcano.RelSubset)">getImportance</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel)</code></th>
<td class="colLast">
<div class="block">Returns the importance of an equivalence class of relational expressions.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.</span><code><span class="memberNameLink"><a href="../RuleQueue.html#recompute(org.apache.calcite.plan.volcano.RelSubset)">recompute</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;subset)</code></th>
<td class="colLast">
<div class="block">Equivalent to
<a href="../RuleQueue.html#recompute(org.apache.calcite.plan.volcano.RelSubset,boolean)"><code>recompute(subset, false)</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.</span><code><span class="memberNameLink"><a href="../RuleQueue.html#recompute(org.apache.calcite.plan.volcano.RelSubset,boolean)">recompute</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;subset,
boolean&nbsp;force)</code></th>
<td class="colLast">
<div class="block">Recomputes the importance of the given RelSubset.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">VolcanoPlanner.</span><code><span class="memberNameLink"><a href="../VolcanoPlanner.html#registerSubset(org.apache.calcite.plan.volcano.RelSet,org.apache.calcite.plan.volcano.RelSubset)">registerSubset</a></span>&#8203;(<a href="../RelSet.html" title="class in org.apache.calcite.plan.volcano">RelSet</a>&nbsp;set,
<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;subset)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.</span><code><span class="memberNameLink"><a href="../RuleQueue.html#updateImportance(org.apache.calcite.plan.volcano.RelSubset,java.lang.Double)">updateImportance</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;subset,
java.lang.Double&nbsp;importance)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelSubset.DeadEndFinder.</span><code><span class="memberNameLink"><a href="../RelSubset.DeadEndFinder.html#visitSubset(org.apache.calcite.plan.volcano.RelSubset)">visitSubset</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;subset)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
</tbody>
</table>
<table class="useSummary">
<caption><span>Method parameters in <a href="../package-summary.html">org.apache.calcite.plan.volcano</a> with type arguments of type <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.</span><code><span class="memberNameLink"><a href="../RuleQueue.html#boostImportance(java.util.Collection,double)">boostImportance</a></span>&#8203;(java.util.Collection&lt;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&gt;&nbsp;subsets,
double&nbsp;factor)</code></th>
<td class="colLast">
<div class="block">Artificially boosts the importance of the given <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano"><code>RelSubset</code></a>s by a
given factor.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RuleQueue.</span><code><span class="memberNameLink"><a href="../RuleQueue.html#checkDuplicateSubsets(java.util.Deque,org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.rel.RelNode%5B%5D)">checkDuplicateSubsets</a></span>&#8203;(java.util.Deque&lt;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&gt;&nbsp;subsets,
<a href="../../RelOptRuleOperand.html" title="class in org.apache.calcite.plan">RelOptRuleOperand</a>&nbsp;operand,
<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>[]&nbsp;rels)</code></th>
<td class="colLast">
<div class="block">Recursively checks whether there are any duplicate subsets along any path
from root of the operand tree to one of the leaves.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>(package private) void</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelSubset.</span><code><span class="memberNameLink"><a href="../RelSubset.html#propagateCostImprovements(org.apache.calcite.plan.volcano.VolcanoPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,java.util.Set)">propagateCostImprovements</a></span>&#8203;(<a href="../VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a>&nbsp;planner,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq,
<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel,
java.util.Set&lt;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&gt;&nbsp;activeSet)</code></th>
<td class="colLast">
<div class="block">Checks whether a relexp has made its subset cheaper, and if it so,
recursively checks whether that subset's parents have gotten cheaper.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>(package private) void</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelSubset.</span><code><span class="memberNameLink"><a href="../RelSubset.html#propagateCostImprovements0(org.apache.calcite.plan.volcano.VolcanoPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,java.util.Set)">propagateCostImprovements0</a></span>&#8203;(<a href="../VolcanoPlanner.html" title="class in org.apache.calcite.plan.volcano">VolcanoPlanner</a>&nbsp;planner,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq,
<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&nbsp;rel,
java.util.Set&lt;<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&gt;&nbsp;activeSet)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
</tbody>
</table>
<table class="useSummary">
<caption><span>Constructors in <a href="../package-summary.html">org.apache.calcite.plan.volcano</a> with parameters of type <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../AbstractConverter.html#%3Cinit%3E(org.apache.calcite.plan.RelOptCluster,org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.plan.RelTraitDef,org.apache.calcite.plan.RelTraitSet)">AbstractConverter</a></span>&#8203;(<a href="../../RelOptCluster.html" title="class in org.apache.calcite.plan">RelOptCluster</a>&nbsp;cluster,
<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel,
<a href="../../RelTraitDef.html" title="class in org.apache.calcite.plan">RelTraitDef</a>&nbsp;traitDef,
<a href="../../RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a>&nbsp;traits)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
</tbody>
</table>
</section>
</li>
<li class="blockList">
<section role="region"><a id="org.apache.calcite.rel.metadata">
<!-- -->
</a>
<h3>Uses of <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a> in <a href="../../../rel/metadata/package-summary.html">org.apache.calcite.rel.metadata</a></h3>
<table class="useSummary">
<caption><span>Methods in <a href="../../../rel/metadata/package-summary.html">org.apache.calcite.rel.metadata</a> with parameters of type <a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>java.lang.Boolean</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelMdColumnUniqueness.</span><code><span class="memberNameLink"><a href="../../../rel/metadata/RelMdColumnUniqueness.html#areColumnsUnique(org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.util.ImmutableBitSet,boolean)">areColumnsUnique</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq,
<a href="../../../util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a>&nbsp;columns,
boolean&nbsp;ignoreNulls)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>com.google.common.collect.ImmutableList&lt;<a href="../../../rel/RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a>&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelMdCollation.</span><code><span class="memberNameLink"><a href="../../../rel/metadata/RelMdCollation.html#collations(org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.rel.metadata.RelMetadataQuery)">collations</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../RelOptPredicateList.html" title="class in org.apache.calcite.plan">RelOptPredicateList</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelMdAllPredicates.</span><code><span class="memberNameLink"><a href="../../../rel/metadata/RelMdAllPredicates.html#getAllPredicates(org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.rel.metadata.RelMetadataQuery)">getAllPredicates</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.Double</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelMdDistinctRowCount.</span><code><span class="memberNameLink"><a href="../../../rel/metadata/RelMdDistinctRowCount.html#getDistinctRowCount(org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.util.ImmutableBitSet,org.apache.calcite.rex.RexNode)">getDistinctRowCount</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq,
<a href="../../../util/ImmutableBitSet.html" title="class in org.apache.calcite.util">ImmutableBitSet</a>&nbsp;groupKey,
<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;predicate)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.util.Set&lt;<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelMdExpressionLineage.</span><code><span class="memberNameLink"><a href="../../../rel/metadata/RelMdExpressionLineage.html#getExpressionLineage(org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rex.RexNode)">getExpressionLineage</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq,
<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>&nbsp;outputExpression)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.Double</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelMdMaxRowCount.</span><code><span class="memberNameLink"><a href="../../../rel/metadata/RelMdMaxRowCount.html#getMaxRowCount(org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.rel.metadata.RelMetadataQuery)">getMaxRowCount</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.Double</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelMdMinRowCount.</span><code><span class="memberNameLink"><a href="../../../rel/metadata/RelMdMinRowCount.html#getMinRowCount(org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.rel.metadata.RelMetadataQuery)">getMinRowCount</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>com.google.common.collect.Multimap&lt;java.lang.Class&lt;? extends <a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;,&#8203;<a href="../../../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelMdNodeTypes.</span><code><span class="memberNameLink"><a href="../../../rel/metadata/RelMdNodeTypes.html#getNodeTypes(org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.rel.metadata.RelMetadataQuery)">getNodeTypes</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../RelOptPredicateList.html" title="class in org.apache.calcite.plan">RelOptPredicateList</a></code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelMdPredicates.</span><code><span class="memberNameLink"><a href="../../../rel/metadata/RelMdPredicates.html#getPredicates(org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.rel.metadata.RelMetadataQuery)">getPredicates</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;r,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.Double</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelMdRowCount.</span><code><span class="memberNameLink"><a href="../../../rel/metadata/RelMdRowCount.html#getRowCount(org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.rel.metadata.RelMetadataQuery)">getRowCount</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;subset,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.util.Set&lt;<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>&gt;</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">RelMdTableReferences.</span><code><span class="memberNameLink"><a href="../../../rel/metadata/RelMdTableReferences.html#getTableReferences(org.apache.calcite.plan.volcano.RelSubset,org.apache.calcite.rel.metadata.RelMetadataQuery)">getTableReferences</a></span>&#8203;(<a href="../RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a>&nbsp;rel,
<a href="../../../rel/metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a>&nbsp;mq)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
</tbody>
</table>
</section>
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