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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.rel</a></div> |
| <h1 title="Class SingleRel" class="title">Class SingleRel</h1> |
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| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">java.lang.Object</a> |
| <div class="inheritance"><a href="AbstractRelNode.html" title="class in org.apache.calcite.rel">org.apache.calcite.rel.AbstractRelNode</a> |
| <div class="inheritance">org.apache.calcite.rel.SingleRel</div> |
| </div> |
| </div> |
| <section class="description"> |
| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Cloneable.html?is-external=true" title="class or interface in java.lang" class="externalLink">Cloneable</a></code>, <code><a href="../plan/RelOptNode.html" title="interface in org.apache.calcite.plan">RelOptNode</a></code>, <code><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| </dl> |
| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><code><a href="core/Aggregate.html" title="class in org.apache.calcite.rel.core">Aggregate</a></code>, <code><a href="core/Calc.html" title="class in org.apache.calcite.rel.core">Calc</a></code>, <code><a href="../adapter/cassandra/CassandraLimit.html" title="class in org.apache.calcite.adapter.cassandra">CassandraLimit</a></code>, <code><a href="stream/Chi.html" title="class in org.apache.calcite.rel.stream">Chi</a></code>, <code><a href="core/Collect.html" title="class in org.apache.calcite.rel.core">Collect</a></code>, <code><a href="convert/ConverterImpl.html" title="class in org.apache.calcite.rel.convert">ConverterImpl</a></code>, <code><a href="stream/Delta.html" title="class in org.apache.calcite.rel.stream">Delta</a></code>, <code><a href="../adapter/enumerable/EnumerableInterpreter.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableInterpreter</a></code>, <code><a href="../adapter/enumerable/EnumerableLimit.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableLimit</a></code>, <code><a href="core/Exchange.html" title="class in org.apache.calcite.rel.core">Exchange</a></code>, <code><a href="core/Filter.html" title="class in org.apache.calcite.rel.core">Filter</a></code>, <code><a href="../adapter/jdbc/JdbcRules.JdbcCalc.html" title="class in org.apache.calcite.adapter.jdbc">JdbcRules.JdbcCalc</a></code>, <code><a href="core/Match.html" title="class in org.apache.calcite.rel.core">Match</a></code>, <code><a href="core/Project.html" title="class in org.apache.calcite.rel.core">Project</a></code>, <code><a href="core/Sample.html" title="class in org.apache.calcite.rel.core">Sample</a></code>, <code><a href="core/Snapshot.html" title="class in org.apache.calcite.rel.core">Snapshot</a></code>, <code><a href="core/Sort.html" title="class in org.apache.calcite.rel.core">Sort</a></code>, <code><a href="../adapter/spark/SparkRules.SparkCalc.html" title="class in org.apache.calcite.adapter.spark">SparkRules.SparkCalc</a></code>, <code><a href="core/Spool.html" title="class in org.apache.calcite.rel.core">Spool</a></code>, <code><a href="core/TableModify.html" title="class in org.apache.calcite.rel.core">TableModify</a></code>, <code><a href="core/Uncollect.html" title="class in org.apache.calcite.rel.core">Uncollect</a></code>, <code><a href="core/Window.html" title="class in org.apache.calcite.rel.core">Window</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public abstract class <span class="typeNameLabel">SingleRel</span> |
| extends <a href="AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></pre> |
| <div class="block">Abstract base class for relational expressions with a single input. |
| |
| <p>It is not required that single-input relational expressions use this |
| class as a base class. However, default implementations of methods make life |
| easier.</div> |
| </section> |
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| <h2>Nested Class Summary</h2> |
| <div class="inheritedList"> |
| <h2>Nested classes/interfaces inherited from interface org.apache.calcite.rel.<a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></h2> |
| <a id="nested.classes.inherited.from.class.org.apache.calcite.rel.RelNode"> |
| <!-- --> |
| </a><code><a href="RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a></code></div> |
| </section> |
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| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <thead> |
| <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> |
| </thead> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#input">input</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="inheritedList"> |
| <h3>Fields inherited from class org.apache.calcite.rel.<a href="AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></h3> |
| <a id="fields.inherited.from.class.org.apache.calcite.rel.AbstractRelNode"> |
| <!-- --> |
| </a><code><a href="AbstractRelNode.html#digest">digest</a>, <a href="AbstractRelNode.html#id">id</a>, <a href="AbstractRelNode.html#rowType">rowType</a>, <a href="AbstractRelNode.html#traitSet">traitSet</a></code></div> |
| </section> |
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| <h2>Constructor Summary</h2> |
| <div class="memberSummary"> |
| <table> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <thead> |
| <tr> |
| <th class="colFirst" scope="col">Modifier</th> |
| <th class="colSecond" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.plan.RelOptCluster,org.apache.calcite.plan.RelTraitSet,org.apache.calcite.rel.RelNode)">SingleRel</a></span>​(<a href="../plan/RelOptCluster.html" title="class in org.apache.calcite.plan">RelOptCluster</a> cluster, |
| <a href="../plan/RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a> traits, |
| <a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> input)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a <code>SingleRel</code>.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
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| <h2>Method Summary</h2> |
| <div class="memberSummary"> |
| <div role="tablist" aria-orientation="horizontal"><button role="tab" aria-selected="true" aria-controls="memberSummary_tabpanel" tabindex="0" onkeydown="switchTab(event)" id="t0" class="activeTableTab">All Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t2" class="tableTab" onclick="show(2);">Instance Methods</button><button role="tab" aria-selected="false" aria-controls="memberSummary_tabpanel" tabindex="-1" onkeydown="switchTab(event)" id="t4" class="tableTab" onclick="show(8);">Concrete Methods</button></div> |
| <div id="memberSummary_tabpanel" role="tabpanel"> |
| <table aria-labelledby="t0"> |
| <thead> |
| <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> |
| </thead> |
| <tbody> |
| <tr class="altColor" id="i0"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#childrenAccept(org.apache.calcite.rel.RelVisitor)">childrenAccept</a></span>​(<a href="RelVisitor.html" title="class in org.apache.calcite.rel">RelVisitor</a> visitor)</code></th> |
| <td class="colLast"> |
| <div class="block">Interacts with the <a href="RelVisitor.html" title="class in org.apache.calcite.rel"><code>RelVisitor</code></a> in a |
| <a href="../util/Glossary.html#VISITOR_PATTERN"><code>visitor pattern</code></a> to |
| traverse the tree of relational expressions.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i1"> |
| <td class="colFirst"><code>protected <a href="type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#deriveRowType()">deriveRowType</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor" id="i2"> |
| <td class="colFirst"><code>double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a></span>​(<a href="metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns an estimate of the number of rows this relational expression will |
| return.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i3"> |
| <td class="colFirst"><code><a href="RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#explainTerms(org.apache.calcite.rel.RelWriter)">explainTerms</a></span>​(<a href="RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a> pw)</code></th> |
| <td class="colLast"> |
| <div class="block">Describes the inputs and attributes of this relational expression.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i4"> |
| <td class="colFirst"><code><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getInput()">getInput</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor" id="i5"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><<a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getInputs()">getInputs</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns an array of this relational expression's inputs.</div> |
| </td> |
| </tr> |
| <tr class="altColor" id="i6"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#replaceInput(int,org.apache.calcite.rel.RelNode)">replaceInput</a></span>​(int ordinalInParent, |
| <a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel)</code></th> |
| <td class="colLast"> |
| <div class="block">Replaces the <code>ordinalInParent</code><sup>th</sup> input.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| <div class="inheritedList"> |
| <h3>Methods inherited from class org.apache.calcite.rel.<a href="AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></h3> |
| <a id="methods.inherited.from.class.org.apache.calcite.rel.AbstractRelNode"> |
| <!-- --> |
| </a><code><a href="AbstractRelNode.html#accept(org.apache.calcite.rel.RelShuttle)">accept</a>, <a href="AbstractRelNode.html#accept(org.apache.calcite.rex.RexShuttle)">accept</a>, <a href="AbstractRelNode.html#collectVariablesSet(java.util.Set)">collectVariablesSet</a>, <a href="AbstractRelNode.html#collectVariablesUsed(java.util.Set)">collectVariablesUsed</a>, <a href="AbstractRelNode.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">computeSelfCost</a>, <a href="AbstractRelNode.html#copy(org.apache.calcite.plan.RelTraitSet,java.util.List)">copy</a>, <a href="AbstractRelNode.html#deepEquals(java.lang.Object)">deepEquals</a>, <a href="AbstractRelNode.html#deepHashCode()">deepHashCode</a>, <a href="AbstractRelNode.html#equals(java.lang.Object)">equals</a>, <a href="AbstractRelNode.html#explain(org.apache.calcite.rel.RelWriter)">explain</a>, <a href="AbstractRelNode.html#getCluster()">getCluster</a>, <a href="AbstractRelNode.html#getConvention()">getConvention</a>, <a href="AbstractRelNode.html#getCorrelVariable()">getCorrelVariable</a>, <a href="AbstractRelNode.html#getDescription()">getDescription</a>, <a href="AbstractRelNode.html#getDigest()">getDigest</a>, <a href="AbstractRelNode.html#getExpectedInputRowType(int)">getExpectedInputRowType</a>, <a href="AbstractRelNode.html#getId()">getId</a>, <a href="AbstractRelNode.html#getInput(int)">getInput</a>, <a href="AbstractRelNode.html#getRelDigest()">getRelDigest</a>, <a href="AbstractRelNode.html#getRelTypeName()">getRelTypeName</a>, <a href="AbstractRelNode.html#getRowType()">getRowType</a>, <a href="AbstractRelNode.html#getTable()">getTable</a>, <a href="AbstractRelNode.html#getTraitSet()">getTraitSet</a>, <a href="AbstractRelNode.html#getVariablesSet()">getVariablesSet</a>, <a href="AbstractRelNode.html#hashCode()">hashCode</a>, <a href="AbstractRelNode.html#isEnforcer()">isEnforcer</a>, <a href="AbstractRelNode.html#isValid(org.apache.calcite.util.Litmus,org.apache.calcite.rel.RelNode.Context)">isValid</a>, <a href="AbstractRelNode.html#metadata(java.lang.Class,org.apache.calcite.rel.metadata.RelMetadataQuery)">metadata</a>, <a href="AbstractRelNode.html#onRegister(org.apache.calcite.plan.RelOptPlanner)">onRegister</a>, <a href="AbstractRelNode.html#recomputeDigest()">recomputeDigest</a>, <a href="AbstractRelNode.html#register(org.apache.calcite.plan.RelOptPlanner)">register</a>, <a href="AbstractRelNode.html#sole(java.util.List)">sole</a>, <a href="AbstractRelNode.html#toString()">toString</a></code></div> |
| <div class="inheritedList"> |
| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3> |
| <a id="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></div> |
| <div class="inheritedList"> |
| <h3>Methods inherited from interface org.apache.calcite.rel.<a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></h3> |
| <a id="methods.inherited.from.class.org.apache.calcite.rel.RelNode"> |
| <!-- --> |
| </a><code><a href="RelNode.html#explain()">explain</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| </a> |
| <h2>Field Details</h2> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="input">input</a></h3> |
| <div class="memberSignature"><span class="modifiers">protected</span> <span class="returnType"><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></span> <span class="memberName">input</span></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <li class="blockList"> |
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| </a> |
| <h2>Constructor Details</h2> |
| <ul class="blockList"> |
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| <section class="detail"> |
| <h3><a id="<init>(org.apache.calcite.plan.RelOptCluster,org.apache.calcite.plan.RelTraitSet,org.apache.calcite.rel.RelNode)">SingleRel</a></h3> |
| <div class="memberSignature"><span class="modifiers">protected</span> <span class="memberName">SingleRel</span>​(<span class="arguments"><a href="../plan/RelOptCluster.html" title="class in org.apache.calcite.plan">RelOptCluster</a> cluster, |
| <a href="../plan/RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a> traits, |
| <a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> input)</span></div> |
| <div class="block">Creates a <code>SingleRel</code>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>cluster</code> - Cluster this relational expression belongs to</dd> |
| <dd><code>input</code> - Input relational expression</dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
| </section> |
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| <section class="methodDetails"><a id="method.detail"> |
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| <h2>Method Details</h2> |
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| <h3><a id="getInput()">getInput</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></span> <span class="memberName">getInput</span>()</div> |
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| <section class="detail"> |
| <h3><a id="getInputs()">getInputs</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="https://docs.oracle.com/javase/9/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util" class="externalLink">List</a><<a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>></span> <span class="memberName">getInputs</span>()</div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelNode.html#getInputs()">RelNode</a></code></span></div> |
| <div class="block">Returns an array of this relational expression's inputs. If there are no |
| inputs, returns an empty list, not <code>null</code>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelNode.html#getInputs()">getInputs</a></code> in interface <code><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../plan/RelOptNode.html#getInputs()">getInputs</a></code> in interface <code><a href="../plan/RelOptNode.html" title="interface in org.apache.calcite.plan">RelOptNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="AbstractRelNode.html#getInputs()">getInputs</a></code> in class <code><a href="AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Array of this relational expression's inputs</dd> |
| </dl> |
| </section> |
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| <h3><a id="estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">double</span> <span class="memberName">estimateRowCount</span>​(<span class="arguments"><a href="metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</span></div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelNode.html#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">RelNode</a></code></span></div> |
| <div class="block">Returns an estimate of the number of rows this relational expression will |
| return. |
| |
| <p>NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use |
| <a href="metadata/RelMetadataQuery.html#getRowCount(org.apache.calcite.rel.RelNode)"><code>RelMetadataQuery.getRowCount(org.apache.calcite.rel.RelNode)</code></a>, which gives plugins a chance to |
| override the rel's default ideas about row count.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelNode.html#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a></code> in interface <code><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="AbstractRelNode.html#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a></code> in class <code><a href="AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>mq</code> - Metadata query</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Estimate of the number of rows this relational expression will |
| return</dd> |
| </dl> |
| </section> |
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| <h3><a id="childrenAccept(org.apache.calcite.rel.RelVisitor)">childrenAccept</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">void</span> <span class="memberName">childrenAccept</span>​(<span class="arguments"><a href="RelVisitor.html" title="class in org.apache.calcite.rel">RelVisitor</a> visitor)</span></div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelNode.html#childrenAccept(org.apache.calcite.rel.RelVisitor)">RelNode</a></code></span></div> |
| <div class="block">Interacts with the <a href="RelVisitor.html" title="class in org.apache.calcite.rel"><code>RelVisitor</code></a> in a |
| <a href="../util/Glossary.html#VISITOR_PATTERN"><code>visitor pattern</code></a> to |
| traverse the tree of relational expressions.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelNode.html#childrenAccept(org.apache.calcite.rel.RelVisitor)">childrenAccept</a></code> in interface <code><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="AbstractRelNode.html#childrenAccept(org.apache.calcite.rel.RelVisitor)">childrenAccept</a></code> in class <code><a href="AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>visitor</code> - Visitor that will traverse the tree of relational |
| expressions</dd> |
| </dl> |
| </section> |
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| <section class="detail"> |
| <h3><a id="explainTerms(org.apache.calcite.rel.RelWriter)">explainTerms</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType"><a href="RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a></span> <span class="memberName">explainTerms</span>​(<span class="arguments"><a href="RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a> pw)</span></div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="AbstractRelNode.html#explainTerms(org.apache.calcite.rel.RelWriter)">AbstractRelNode</a></code></span></div> |
| <div class="block">Describes the inputs and attributes of this relational expression. |
| Each node should call <code>super.explainTerms</code>, then call the |
| <a href="RelWriter.html#input(java.lang.String,org.apache.calcite.rel.RelNode)"><code>RelWriter.input(String, RelNode)</code></a> |
| and |
| <a href="externalize/RelWriterImpl.html#item(java.lang.String,java.lang.Object)"><code>RelWriterImpl.item(String, Object)</code></a> |
| methods for each input and attribute.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="AbstractRelNode.html#explainTerms(org.apache.calcite.rel.RelWriter)">explainTerms</a></code> in class <code><a href="AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>pw</code> - Plan writer</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Plan writer for fluent-explain pattern</dd> |
| </dl> |
| </section> |
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| <section class="detail"> |
| <h3><a id="replaceInput(int,org.apache.calcite.rel.RelNode)">replaceInput</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">void</span> <span class="memberName">replaceInput</span>​(<span class="arguments">int ordinalInParent, |
| <a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> rel)</span></div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelNode.html#replaceInput(int,org.apache.calcite.rel.RelNode)">RelNode</a></code></span></div> |
| <div class="block">Replaces the <code>ordinalInParent</code><sup>th</sup> input. You must |
| override this method if you override <a href="RelNode.html#getInputs()"><code>RelNode.getInputs()</code></a>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelNode.html#replaceInput(int,org.apache.calcite.rel.RelNode)">replaceInput</a></code> in interface <code><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="AbstractRelNode.html#replaceInput(int,org.apache.calcite.rel.RelNode)">replaceInput</a></code> in class <code><a href="AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>ordinalInParent</code> - Position of the child input, 0 is the first</dd> |
| <dd><code>rel</code> - New node that should be put at position <code>ordinalInParent</code></dd> |
| </dl> |
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| <h3><a id="deriveRowType()">deriveRowType</a></h3> |
| <div class="memberSignature"><span class="modifiers">protected</span> <span class="returnType"><a href="type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></span> <span class="memberName">deriveRowType</span>()</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="AbstractRelNode.html#deriveRowType()">deriveRowType</a></code> in class <code><a href="AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
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