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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.calcite.piglet</a></div>
<h2 title="Class PigRelOpInnerVisitor" class="title">Class PigRelOpInnerVisitor</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>org.apache.pig.newplan.PlanVisitor</li>
<li>
<ul class="inheritance">
<li>org.apache.pig.newplan.logical.relational.LogicalRelationalNodesVisitor</li>
<li>
<ul class="inheritance">
<li><a href="PigRelOpWalker.PlanPreVisitor.html" title="class in org.apache.calcite.piglet">org.apache.calcite.piglet.PigRelOpWalker.PlanPreVisitor</a></li>
<li>
<ul class="inheritance">
<li><a href="PigRelOpVisitor.html" title="class in org.apache.calcite.piglet">org.apache.calcite.piglet.PigRelOpVisitor</a></li>
<li>
<ul class="inheritance">
<li>org.apache.calcite.piglet.PigRelOpInnerVisitor</li>
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<pre>class <span class="typeNameLabel">PigRelOpInnerVisitor</span>
extends <a href="PigRelOpVisitor.html" title="class in org.apache.calcite.piglet">PigRelOpVisitor</a></pre>
<div class="block">Visits Pig logical operators of Pig inner logical plans
(in <code>LOForEach</code>)
and converts them into corresponding relational algebra plans.</div>
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<tr class="altColor">
<td class="colFirst"><code>private java.util.Deque&lt;<a href="../rel/core/CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#corStack">corStack</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private <a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#inputRel">inputRel</a></span></code></th>
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<h3>Fields inherited from class&nbsp;org.apache.calcite.piglet.<a href="PigRelOpVisitor.html" title="class in org.apache.calcite.piglet">PigRelOpVisitor</a></h3>
<code><a href="PigRelOpVisitor.html#builder">builder</a></code></li>
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<code>currentWalker, DEFAULT_SCOPE, plan</code></li>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.pig.newplan.OperatorPlan,org.apache.pig.newplan.PlanWalker,org.apache.calcite.piglet.PigRelBuilder)">PigRelOpInnerVisitor</a></span>&#8203;(org.apache.pig.newplan.OperatorPlan&nbsp;plan,
org.apache.pig.newplan.PlanWalker&nbsp;walker,
<a href="PigRelBuilder.html" title="class in org.apache.calcite.piglet">PigRelBuilder</a>&nbsp;builder)</code></th>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
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<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#doGenerateWithoutMultisetFlatten(org.apache.pig.newplan.logical.relational.LOGenerate,java.util.List,java.util.List)">doGenerateWithoutMultisetFlatten</a></span>&#8203;(org.apache.pig.newplan.logical.relational.LOGenerate&nbsp;gen,
java.util.List&lt;java.lang.Integer&gt;&nbsp;multisetFlattens,
java.util.List&lt;java.lang.String&gt;&nbsp;flattenOutputAliases)</code></th>
<td class="colLast">
<div class="block">Projects all expressions in LOGenerate output expressions, but not consider flatten
multiset columns yet.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>private void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#makeCorrelates()">makeCorrelates</a></span>()</code></th>
<td class="colLast">
<div class="block">Rejoins all multiset (bag) columns that have been processed in the nested
foreach block.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#preVisit(org.apache.pig.newplan.logical.relational.LogicalRelationalOperator)">preVisit</a></span>&#8203;(org.apache.pig.newplan.logical.relational.LogicalRelationalOperator&nbsp;root)</code></th>
<td class="colLast">
<div class="block">Called before a node.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visit(org.apache.pig.newplan.logical.relational.LOGenerate)">visit</a></span>&#8203;(org.apache.pig.newplan.logical.relational.LOGenerate&nbsp;gen)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#visit(org.apache.pig.newplan.logical.relational.LOInnerLoad)">visit</a></span>&#8203;(org.apache.pig.newplan.logical.relational.LOInnerLoad&nbsp;load)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
</table>
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<h3>Methods inherited from class&nbsp;org.apache.calcite.piglet.<a href="PigRelOpVisitor.html" title="class in org.apache.calcite.piglet">PigRelOpVisitor</a></h3>
<code><a href="PigRelOpVisitor.html#getCurrentRoot()">getCurrentRoot</a>, <a href="PigRelOpVisitor.html#translate()">translate</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOCogroup)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOCross)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOCube)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LODistinct)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOFilter)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOForEach)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOJoin)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOLimit)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOLoad)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LONative)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LORank)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOSort)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOSplit)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOSplitOutput)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOStore)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOStream)">visit</a>, <a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOUnion)">visit</a></code></li>
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<h3>Methods inherited from class&nbsp;org.apache.pig.newplan.PlanVisitor</h3>
<code>getPlan, popWalker, pushWalker, visit</code></li>
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<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>inputRel</h4>
<pre>private final&nbsp;<a href="../rel/RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> inputRel</pre>
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<h4>corStack</h4>
<pre>private final&nbsp;java.util.Deque&lt;<a href="../rel/core/CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a>&gt; corStack</pre>
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<a id="&lt;init&gt;(org.apache.pig.newplan.OperatorPlan,org.apache.pig.newplan.PlanWalker,org.apache.calcite.piglet.PigRelBuilder)">
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<h4>PigRelOpInnerVisitor</h4>
<pre>PigRelOpInnerVisitor&#8203;(org.apache.pig.newplan.OperatorPlan&nbsp;plan,
org.apache.pig.newplan.PlanWalker&nbsp;walker,
<a href="PigRelBuilder.html" title="class in org.apache.calcite.piglet">PigRelBuilder</a>&nbsp;builder)
throws org.apache.pig.impl.logicalLayer.FrontendException</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>plan</code> - Pig inner logical plan</dd>
<dd><code>walker</code> - The walker over Pig logical plan</dd>
<dd><code>builder</code> - Relational algebra builder</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.pig.impl.logicalLayer.FrontendException</code> - Exception during processing Pig operators</dd>
</dl>
</li>
</ul>
</li>
</ul>
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<h3>Method Detail</h3>
<a id="visit(org.apache.pig.newplan.logical.relational.LOGenerate)">
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<h4>visit</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;visit&#8203;(org.apache.pig.newplan.logical.relational.LOGenerate&nbsp;gen)
throws org.apache.pig.impl.logicalLayer.FrontendException</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOGenerate)">visit</a></code>&nbsp;in class&nbsp;<code><a href="PigRelOpVisitor.html" title="class in org.apache.calcite.piglet">PigRelOpVisitor</a></code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.pig.impl.logicalLayer.FrontendException</code></dd>
</dl>
</li>
</ul>
<a id="makeCorrelates()">
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<h4>makeCorrelates</h4>
<pre class="methodSignature">private&nbsp;void&nbsp;makeCorrelates()
throws org.apache.pig.impl.logicalLayer.FrontendException</pre>
<div class="block">Rejoins all multiset (bag) columns that have been processed in the nested
foreach block.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.pig.impl.logicalLayer.FrontendException</code> - Exception during processing Pig operators</dd>
</dl>
</li>
</ul>
<a id="doGenerateWithoutMultisetFlatten(org.apache.pig.newplan.logical.relational.LOGenerate,java.util.List,java.util.List)">
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</a>
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<h4>doGenerateWithoutMultisetFlatten</h4>
<pre class="methodSignature">private&nbsp;void&nbsp;doGenerateWithoutMultisetFlatten&#8203;(org.apache.pig.newplan.logical.relational.LOGenerate&nbsp;gen,
java.util.List&lt;java.lang.Integer&gt;&nbsp;multisetFlattens,
java.util.List&lt;java.lang.String&gt;&nbsp;flattenOutputAliases)
throws org.apache.pig.impl.logicalLayer.FrontendException</pre>
<div class="block">Projects all expressions in LOGenerate output expressions, but not consider flatten
multiset columns yet.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>gen</code> - Pig logical generate operator</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.pig.impl.logicalLayer.FrontendException</code> - Exception during processing Pig operators</dd>
</dl>
</li>
</ul>
<a id="visit(org.apache.pig.newplan.logical.relational.LOInnerLoad)">
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<h4>visit</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;visit&#8203;(org.apache.pig.newplan.logical.relational.LOInnerLoad&nbsp;load)
throws org.apache.pig.impl.logicalLayer.FrontendException</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="PigRelOpVisitor.html#visit(org.apache.pig.newplan.logical.relational.LOInnerLoad)">visit</a></code>&nbsp;in class&nbsp;<code><a href="PigRelOpVisitor.html" title="class in org.apache.calcite.piglet">PigRelOpVisitor</a></code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.pig.impl.logicalLayer.FrontendException</code></dd>
</dl>
</li>
</ul>
<a id="preVisit(org.apache.pig.newplan.logical.relational.LogicalRelationalOperator)">
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<h4>preVisit</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;preVisit&#8203;(org.apache.pig.newplan.logical.relational.LogicalRelationalOperator&nbsp;root)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="PigRelOpWalker.PlanPreVisitor.html#preVisit(org.apache.pig.newplan.logical.relational.LogicalRelationalOperator)">PigRelOpWalker.PlanPreVisitor</a></code></span></div>
<div class="block">Called before a node.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="PigRelOpVisitor.html#preVisit(org.apache.pig.newplan.logical.relational.LogicalRelationalOperator)">preVisit</a></code>&nbsp;in class&nbsp;<code><a href="PigRelOpVisitor.html" title="class in org.apache.calcite.piglet">PigRelOpVisitor</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>root</code> - Pig logical operator to check</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Returns whether the node has been visited before</dd>
</dl>
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