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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.rel.rules</a></div>
<h2 title="Class SortJoinCopyRule" class="title">Class SortJoinCopyRule</h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li><a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">org.apache.calcite.plan.RelOptRule</a></li>
<li>
<ul class="inheritance">
<li>org.apache.calcite.rel.rules.SortJoinCopyRule</li>
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<pre>public class <span class="typeNameLabel">SortJoinCopyRule</span>
extends <a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></pre>
<div class="block">Planner rule that copies a <a href="../core/Sort.html" title="class in org.apache.calcite.rel.core"><code>Sort</code></a> past a
<a href="../core/Join.html" title="class in org.apache.calcite.rel.core"><code>Join</code></a> without its limit and offset. The
original <a href="../core/Sort.html" title="class in org.apache.calcite.rel.core"><code>Sort</code></a> is preserved but can be
potentially removed by <a href="SortRemoveRule.html" title="class in org.apache.calcite.rel.rules"><code>SortRemoveRule</code></a> if
redundant.
<p>Some examples where <a href="SortJoinCopyRule.html" title="class in org.apache.calcite.rel.rules"><code>SortJoinCopyRule</code></a>
can be useful: allowing a <a href="../core/Sort.html" title="class in org.apache.calcite.rel.core"><code>Sort</code></a> to be
incorporated in an index scan; facilitating the use of operators requiring
sorted inputs; and allowing the sort to be performed on a possibly smaller
result.</div>
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<td class="colFirst"><code>static <a href="SortJoinCopyRule.html" title="class in org.apache.calcite.rel.rules">SortJoinCopyRule</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE">INSTANCE</a></span></code></th>
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<h3>Fields inherited from class&nbsp;org.apache.calcite.plan.<a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></h3>
<code><a href="../../plan/RelOptRule.html#description">description</a>, <a href="../../plan/RelOptRule.html#operands">operands</a>, <a href="../../plan/RelOptRule.html#relBuilderFactory">relBuilderFactory</a></code></li>
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<td class="colFirst"><code>protected </code></td>
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.lang.Class,java.lang.Class,org.apache.calcite.tools.RelBuilderFactory)">SortJoinCopyRule</a></span>&#8203;(java.lang.Class&lt;? extends <a href="../core/Sort.html" title="class in org.apache.calcite.rel.core">Sort</a>&gt;&nbsp;sortClass,
java.lang.Class&lt;? extends <a href="../core/Join.html" title="class in org.apache.calcite.rel.core">Join</a>&gt;&nbsp;joinClass,
<a href="../../tools/RelBuilderFactory.html" title="interface in org.apache.calcite.tools">RelBuilderFactory</a>&nbsp;relBuilderFactory)</code></th>
<td class="colLast">
<div class="block">Creates a SortJoinCopyRule.</div>
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<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onMatch(org.apache.calcite.plan.RelOptRuleCall)">onMatch</a></span>&#8203;(<a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a>&nbsp;call)</code></th>
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<div class="block">Receives notification about a rule match.</div>
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<h3>Methods inherited from class&nbsp;org.apache.calcite.plan.<a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></h3>
<code><a href="../../plan/RelOptRule.html#any()">any</a>, <a href="../../plan/RelOptRule.html#convert(org.apache.calcite.rel.RelNode,org.apache.calcite.plan.RelTrait)">convert</a>, <a href="../../plan/RelOptRule.html#convert(org.apache.calcite.rel.RelNode,org.apache.calcite.plan.RelTraitSet)">convert</a>, <a href="../../plan/RelOptRule.html#convertList(java.util.List,org.apache.calcite.plan.RelTrait)">convertList</a>, <a href="../../plan/RelOptRule.html#convertOperand(java.lang.Class,com.google.common.base.Predicate,org.apache.calcite.plan.RelTrait)">convertOperand</a>, <a href="../../plan/RelOptRule.html#convertOperand(java.lang.Class,java.util.function.Predicate,org.apache.calcite.plan.RelTrait)">convertOperand</a>, <a href="../../plan/RelOptRule.html#equals(java.lang.Object)">equals</a>, <a href="../../plan/RelOptRule.html#equals(org.apache.calcite.plan.RelOptRule)">equals</a>, <a href="../../plan/RelOptRule.html#getOperand()">getOperand</a>, <a href="../../plan/RelOptRule.html#getOperands()">getOperands</a>, <a href="../../plan/RelOptRule.html#getOutConvention()">getOutConvention</a>, <a href="../../plan/RelOptRule.html#getOutTrait()">getOutTrait</a>, <a href="../../plan/RelOptRule.html#hashCode()">hashCode</a>, <a href="../../plan/RelOptRule.html#matches(org.apache.calcite.plan.RelOptRuleCall)">matches</a>, <a href="../../plan/RelOptRule.html#none()">none</a>, <a href="../../plan/RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelOptRuleOperandChildren)">operand</a>, <a href="../../plan/RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">operand</a>, <a href="../../plan/RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelTrait,com.google.common.base.Predicate,org.apache.calcite.plan.RelOptRuleOperandChildren)">operand</a>, <a href="../../plan/RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelTrait,com.google.common.base.Predicate,org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">operand</a>, <a href="../../plan/RelOptRule.html#operand(java.lang.Class,org.apache.calcite.plan.RelTrait,org.apache.calcite.plan.RelOptRuleOperandChildren)">operand</a>, <a href="../../plan/RelOptRule.html#operandJ(java.lang.Class,org.apache.calcite.plan.RelTrait,java.util.function.Predicate,org.apache.calcite.plan.RelOptRuleOperandChildren)">operandJ</a>, <a href="../../plan/RelOptRule.html#operandJ(java.lang.Class,org.apache.calcite.plan.RelTrait,java.util.function.Predicate,org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">operandJ</a>, <a href="../../plan/RelOptRule.html#some(org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">some</a>, <a href="../../plan/RelOptRule.html#toString()">toString</a>, <a href="../../plan/RelOptRule.html#unordered(org.apache.calcite.plan.RelOptRuleOperand,org.apache.calcite.plan.RelOptRuleOperand...)">unordered</a></code></li>
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<h4>INSTANCE</h4>
<pre>public static final&nbsp;<a href="SortJoinCopyRule.html" title="class in org.apache.calcite.rel.rules">SortJoinCopyRule</a> INSTANCE</pre>
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<h4>SortJoinCopyRule</h4>
<pre>protected&nbsp;SortJoinCopyRule&#8203;(java.lang.Class&lt;? extends <a href="../core/Sort.html" title="class in org.apache.calcite.rel.core">Sort</a>&gt;&nbsp;sortClass,
java.lang.Class&lt;? extends <a href="../core/Join.html" title="class in org.apache.calcite.rel.core">Join</a>&gt;&nbsp;joinClass,
<a href="../../tools/RelBuilderFactory.html" title="interface in org.apache.calcite.tools">RelBuilderFactory</a>&nbsp;relBuilderFactory)</pre>
<div class="block">Creates a SortJoinCopyRule.</div>
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<h4>onMatch</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;onMatch&#8203;(<a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a>&nbsp;call)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../plan/RelOptRule.html#onMatch(org.apache.calcite.plan.RelOptRuleCall)">RelOptRule</a></code></span></div>
<div class="block">Receives notification about a rule match. At the time that this method is
called, <a href="../../plan/RelOptRuleCall.html#rels"><code>call.rels</code></a> holds the set of relational
expressions which match the operands to the rule; <code>
call.rels[0]</code> is the root expression.
<p>Typically a rule would check that the nodes are valid matches, creates
a new expression, then calls back <a href="../../plan/RelOptRuleCall.html#transformTo(org.apache.calcite.rel.RelNode,java.util.Map)"><code>RelOptRuleCall.transformTo(org.apache.calcite.rel.RelNode, java.util.Map&lt;org.apache.calcite.rel.RelNode, org.apache.calcite.rel.RelNode&gt;)</code></a> to
register the expression.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../plan/RelOptRule.html#onMatch(org.apache.calcite.plan.RelOptRuleCall)">onMatch</a></code>&nbsp;in class&nbsp;<code><a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>call</code> - Rule call</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../plan/RelOptRule.html#matches(org.apache.calcite.plan.RelOptRuleCall)"><code>RelOptRule.matches(RelOptRuleCall)</code></a></dd>
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