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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.rel.core</a></div> |
| <h2 title="Class Window" class="title">Class Window</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
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| <ul class="inheritance"> |
| <li><a href="../AbstractRelNode.html" title="class in org.apache.calcite.rel">org.apache.calcite.rel.AbstractRelNode</a></li> |
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| <ul class="inheritance"> |
| <li>org.apache.calcite.rel.core.Window</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><code>java.lang.Cloneable</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="../../interpreter/Bindables.BindableWindow.html" title="class in org.apache.calcite.interpreter">Bindables.BindableWindow</a></code>, <code><a href="../../adapter/enumerable/EnumerableWindow.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableWindow</a></code>, <code><a href="../logical/LogicalWindow.html" title="class in org.apache.calcite.rel.logical">LogicalWindow</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public abstract class <span class="typeNameLabel">Window</span> |
| extends <a href="../SingleRel.html" title="class in org.apache.calcite.rel">SingleRel</a></pre> |
| <div class="block">A relational expression representing a set of window aggregates. |
| |
| <p>A Window can handle several window aggregate functions, over several |
| partitions, with pre- and post-expressions, and an optional post-filter. |
| Each of the partitions is defined by a partition key (zero or more columns) |
| and a range (logical or physical). The partitions expect the data to be |
| sorted correctly on input to the relational expression. |
| |
| <p>Each <a href="Window.Group.html" title="class in org.apache.calcite.rel.core"><code>Window.Group</code></a> has a set of |
| <a href="../../rex/RexOver.html" title="class in org.apache.calcite.rex"><code>RexOver</code></a> objects. |
| |
| <p>Created by <a href="../rules/ProjectToWindowRule.html" title="class in org.apache.calcite.rel.rules"><code>ProjectToWindowRule</code></a>.</div> |
| </li> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Window.Group.html" title="class in org.apache.calcite.rel.core">Window.Group</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Group of windowed aggregate calls that have the same window specification.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Window.RexWinAggCall.html" title="class in org.apache.calcite.rel.core">Window.RexWinAggCall</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">A call to a windowed aggregate function.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="nested.classes.inherited.from.class.org.apache.calcite.rel.RelNode"> |
| <!-- --> |
| </a> |
| <h3>Nested classes/interfaces inherited from interface org.apache.calcite.rel.<a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></h3> |
| <code><a href="../RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- =========== FIELD SUMMARY =========== --> |
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| <h3>Field Summary</h3> |
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| <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> |
| <tr class="altColor"> |
| <td class="colFirst"><code>com.google.common.collect.ImmutableList<<a href="../../rex/RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#constants">constants</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>com.google.common.collect.ImmutableList<<a href="Window.Group.html" title="class in org.apache.calcite.rel.core">Window.Group</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#groups">groups</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
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| </a> |
| <h3>Fields inherited from class org.apache.calcite.rel.<a href="../SingleRel.html" title="class in org.apache.calcite.rel">SingleRel</a></h3> |
| <code><a href="../SingleRel.html#input">input</a></code></li> |
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| </a> |
| <h3>Fields inherited from class org.apache.calcite.rel.<a href="../AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></h3> |
| <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></li> |
| </ul> |
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| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| <h3>Constructor Summary</h3> |
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| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <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,java.util.List,org.apache.calcite.rel.type.RelDataType,java.util.List)">Window</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> traitSet, |
| <a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> input, |
| java.util.List<<a href="../../rex/RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>> constants, |
| <a href="../type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> rowType, |
| java.util.List<<a href="Window.Group.html" title="class in org.apache.calcite.rel.core">Window.Group</a>> groups)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a window relational expression.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></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> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="../../plan/RelOptCost.html" title="interface in org.apache.calcite.plan">RelOptCost</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">computeSelfCost</a></span>​(<a href="../../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a> planner, |
| <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 the cost of this plan (not including children).</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <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 id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="../RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCollation(java.util.List)">getCollation</a></span>​(java.util.List<<a href="../../rex/RexFieldCollation.html" title="class in org.apache.calcite.rex">RexFieldCollation</a>> collations)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>java.util.List<<a href="../../rex/RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getConstants()">getConstants</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns constants that are additional inputs of current relation.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../util/ImmutableIntList.html" title="class in org.apache.calcite.util">ImmutableIntList</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getProjectOrdinals(java.util.List)">getProjectOrdinals</a></span>​(java.util.List<<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> exprs)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isValid(org.apache.calcite.util.Litmus,org.apache.calcite.rel.RelNode.Context)">isValid</a></span>​(<a href="../../util/Litmus.html" title="interface in org.apache.calcite.util">Litmus</a> litmus, |
| <a href="../RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a> context)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether this relational expression is valid.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.org.apache.calcite.rel.SingleRel"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.calcite.rel.<a href="../SingleRel.html" title="class in org.apache.calcite.rel">SingleRel</a></h3> |
| <code><a href="../SingleRel.html#childrenAccept(org.apache.calcite.rel.RelVisitor)">childrenAccept</a>, <a href="../SingleRel.html#deriveRowType()">deriveRowType</a>, <a href="../SingleRel.html#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a>, <a href="../SingleRel.html#getInput()">getInput</a>, <a href="../SingleRel.html#getInputs()">getInputs</a>, <a href="../SingleRel.html#replaceInput(int,org.apache.calcite.rel.RelNode)">replaceInput</a></code></li> |
| </ul> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.org.apache.calcite.rel.AbstractRelNode"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.calcite.rel.<a href="../AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></h3> |
| <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#computeDigest()">computeDigest</a>, <a href="../AbstractRelNode.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner)">computeSelfCost</a>, <a href="../AbstractRelNode.html#copy(org.apache.calcite.plan.RelTraitSet,java.util.List)">copy</a>, <a href="../AbstractRelNode.html#explain(org.apache.calcite.rel.RelWriter)">explain</a>, <a href="../AbstractRelNode.html#getChildExps()">getChildExps</a>, <a href="../AbstractRelNode.html#getCluster()">getCluster</a>, <a href="../AbstractRelNode.html#getCollationList()">getCollationList</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#getQuery()">getQuery</a>, <a href="../AbstractRelNode.html#getRelTypeName()">getRelTypeName</a>, <a href="../AbstractRelNode.html#getRows()">getRows</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#getVariablesStopped()">getVariablesStopped</a>, <a href="../AbstractRelNode.html#isDistinct()">isDistinct</a>, <a href="../AbstractRelNode.html#isKey(org.apache.calcite.util.ImmutableBitSet)">isKey</a>, <a href="../AbstractRelNode.html#isValid(boolean)">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></li> |
| </ul> |
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| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
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| </a> |
| <h3>Field Detail</h3> |
| <a id="groups"> |
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| </a> |
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| <h4>groups</h4> |
| <pre>public final com.google.common.collect.ImmutableList<<a href="Window.Group.html" title="class in org.apache.calcite.rel.core">Window.Group</a>> groups</pre> |
| </li> |
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| <h4>constants</h4> |
| <pre>public final com.google.common.collect.ImmutableList<<a href="../../rex/RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>> constants</pre> |
| </li> |
| </ul> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a id="<init>(org.apache.calcite.plan.RelOptCluster,org.apache.calcite.plan.RelTraitSet,org.apache.calcite.rel.RelNode,java.util.List,org.apache.calcite.rel.type.RelDataType,java.util.List)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>Window</h4> |
| <pre>public Window​(<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> traitSet, |
| <a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> input, |
| java.util.List<<a href="../../rex/RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>> constants, |
| <a href="../type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> rowType, |
| java.util.List<<a href="Window.Group.html" title="class in org.apache.calcite.rel.core">Window.Group</a>> groups)</pre> |
| <div class="block">Creates a window relational expression.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>cluster</code> - Cluster</dd> |
| <dd><code>traitSet</code> - Trait set</dd> |
| <dd><code>input</code> - Input relational expression</dd> |
| <dd><code>constants</code> - List of constants that are additional inputs</dd> |
| <dd><code>rowType</code> - Output row type</dd> |
| <dd><code>groups</code> - Windows</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ============ METHOD DETAIL ========== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="method.detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a id="isValid(org.apache.calcite.util.Litmus,org.apache.calcite.rel.RelNode.Context)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isValid</h4> |
| <pre class="methodSignature">public boolean isValid​(<a href="../../util/Litmus.html" title="interface in org.apache.calcite.util">Litmus</a> litmus, |
| <a href="../RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a> context)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../RelNode.html#isValid(org.apache.calcite.util.Litmus,org.apache.calcite.rel.RelNode.Context)">RelNode</a></code></span></div> |
| <div class="block">Returns whether this relational expression is valid. |
| |
| <p>If assertions are enabled, this method is typically called with <code> |
| litmus</code> = <code>THROW</code>, as follows: |
| |
| <blockquote> |
| <pre>assert rel.isValid(Litmus.THROW)</pre> |
| </blockquote> |
| |
| <p>This signals that the method can throw an <code>AssertionError</code> if it |
| is not valid.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../RelNode.html#isValid(org.apache.calcite.util.Litmus,org.apache.calcite.rel.RelNode.Context)">isValid</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#isValid(org.apache.calcite.util.Litmus,org.apache.calcite.rel.RelNode.Context)">isValid</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>litmus</code> - What to do if invalid</dd> |
| <dd><code>context</code> - Context for validity checking</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Whether relational expression is valid</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="explainTerms(org.apache.calcite.rel.RelWriter)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>explainTerms</h4> |
| <pre class="methodSignature">public <a href="../RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a> explainTerms​(<a href="../RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a> pw)</pre> |
| <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="../SingleRel.html#explainTerms(org.apache.calcite.rel.RelWriter)">explainTerms</a></code> in class <code><a href="../SingleRel.html" title="class in org.apache.calcite.rel">SingleRel</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> |
| </li> |
| </ul> |
| <a id="getProjectOrdinals(java.util.List)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getProjectOrdinals</h4> |
| <pre class="methodSignature">public static <a href="../../util/ImmutableIntList.html" title="class in org.apache.calcite.util">ImmutableIntList</a> getProjectOrdinals​(java.util.List<<a href="../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> exprs)</pre> |
| </li> |
| </ul> |
| <a id="getCollation(java.util.List)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getCollation</h4> |
| <pre class="methodSignature">public static <a href="../RelCollation.html" title="interface in org.apache.calcite.rel">RelCollation</a> getCollation​(java.util.List<<a href="../../rex/RexFieldCollation.html" title="class in org.apache.calcite.rex">RexFieldCollation</a>> collations)</pre> |
| </li> |
| </ul> |
| <a id="getConstants()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getConstants</h4> |
| <pre class="methodSignature">public java.util.List<<a href="../../rex/RexLiteral.html" title="class in org.apache.calcite.rex">RexLiteral</a>> getConstants()</pre> |
| <div class="block">Returns constants that are additional inputs of current relation.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>constants that are additional inputs of current relation</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>computeSelfCost</h4> |
| <pre class="methodSignature">public <a href="../../plan/RelOptCost.html" title="interface in org.apache.calcite.plan">RelOptCost</a> computeSelfCost​(<a href="../../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a> planner, |
| <a href="../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../RelNode.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">RelNode</a></code></span></div> |
| <div class="block">Returns the cost of this plan (not including children). The base |
| implementation throws an error; derived classes should override. |
| |
| <p>NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use |
| <a href="../metadata/RelMetadataQuery.html#getNonCumulativeCost(org.apache.calcite.rel.RelNode)"><code>RelMetadataQuery.getNonCumulativeCost(org.apache.calcite.rel.RelNode)</code></a>, which gives plugins a |
| chance to override the rel's default ideas about cost.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../RelNode.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">computeSelfCost</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#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">computeSelfCost</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>planner</code> - Planner for cost calculation</dd> |
| <dd><code>mq</code> - Metadata query</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Cost of this plan (not including children)</dd> |
| </dl> |
| </li> |
| </ul> |
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