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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.rel.rules</a></div> |
| <h1 title="Class ReduceExpressionsRule.FilterReduceExpressionsRule" class="title">Class ReduceExpressionsRule.FilterReduceExpressionsRule</h1> |
| </div> |
| <div class="contentContainer"> |
| <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="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">org.apache.calcite.plan.RelOptRule</a> |
| <div class="inheritance"><a href="../../plan/RelRule.html" title="class in org.apache.calcite.plan">org.apache.calcite.plan.RelRule</a><C> |
| <div class="inheritance"><a href="ReduceExpressionsRule.html" title="class in org.apache.calcite.rel.rules">org.apache.calcite.rel.rules.ReduceExpressionsRule</a><<a href="ReduceExpressionsRule.FilterReduceExpressionsRule.Config.html" title="interface in org.apache.calcite.rel.rules">ReduceExpressionsRule.FilterReduceExpressionsRule.Config</a>> |
| <div class="inheritance">org.apache.calcite.rel.rules.ReduceExpressionsRule.FilterReduceExpressionsRule</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <section class="description"> |
| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><code><a href="SubstitutionRule.html" title="interface in org.apache.calcite.rel.rules">SubstitutionRule</a></code>, <code><a href="TransformationRule.html" title="interface in org.apache.calcite.rel.rules">TransformationRule</a></code></dd> |
| </dl> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="ReduceExpressionsRule.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule</a><<a href="ReduceExpressionsRule.html" title="type parameter in ReduceExpressionsRule">C</a> extends <a href="ReduceExpressionsRule.Config.html" title="interface in org.apache.calcite.rel.rules">ReduceExpressionsRule.Config</a>></dd> |
| </dl> |
| <hr> |
| <pre>public static class <span class="typeNameLabel">ReduceExpressionsRule.FilterReduceExpressionsRule</span> |
| extends <a href="ReduceExpressionsRule.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule</a><<a href="ReduceExpressionsRule.FilterReduceExpressionsRule.Config.html" title="interface in org.apache.calcite.rel.rules">ReduceExpressionsRule.FilterReduceExpressionsRule.Config</a>></pre> |
| <div class="block">Rule that reduces constants inside a <a href="../core/Filter.html" title="class in org.apache.calcite.rel.core"><code>Filter</code></a>. |
| If the condition is a constant, the filter is removed (if TRUE) or replaced with |
| an empty <a href="../core/Values.html" title="class in org.apache.calcite.rel.core"><code>Values</code></a> (if FALSE or NULL).</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="CoreRules.html#FILTER_REDUCE_EXPRESSIONS"><code>CoreRules.FILTER_REDUCE_EXPRESSIONS</code></a></dd> |
| </dl> |
| </section> |
| <section class="summary"> |
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| <h2>Nested Class Summary</h2> |
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| <table> |
| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
| <thead> |
| <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> |
| </thead> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static interface </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="ReduceExpressionsRule.FilterReduceExpressionsRule.Config.html" title="interface in org.apache.calcite.rel.rules">ReduceExpressionsRule.FilterReduceExpressionsRule.Config</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Rule configuration.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <div class="inheritedList"> |
| <h2>Nested classes/interfaces inherited from class org.apache.calcite.rel.rules.<a href="ReduceExpressionsRule.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule</a></h2> |
| <a id="nested.classes.inherited.from.class.org.apache.calcite.rel.rules.ReduceExpressionsRule"> |
| <!-- --> |
| </a><code><a href="ReduceExpressionsRule.CalcReduceExpressionsRule.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule.CalcReduceExpressionsRule</a>, <a href="ReduceExpressionsRule.CaseShuttle.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule.CaseShuttle</a>, <a href="ReduceExpressionsRule.FilterReduceExpressionsRule.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule.FilterReduceExpressionsRule</a>, <a href="ReduceExpressionsRule.JoinReduceExpressionsRule.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule.JoinReduceExpressionsRule</a>, <a href="ReduceExpressionsRule.ProjectReduceExpressionsRule.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule.ProjectReduceExpressionsRule</a>, <a href="ReduceExpressionsRule.ReducibleExprLocator.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule.ReducibleExprLocator</a>, <a href="ReduceExpressionsRule.RexReplacer.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule.RexReplacer</a>, <a href="ReduceExpressionsRule.WindowReduceExpressionsRule.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule.WindowReduceExpressionsRule</a></code></div> |
| <div class="inheritedList"> |
| <h2>Nested classes/interfaces inherited from class org.apache.calcite.plan.<a href="../../plan/RelRule.html" title="class in org.apache.calcite.plan">RelRule</a></h2> |
| <a id="nested.classes.inherited.from.class.org.apache.calcite.plan.RelRule"> |
| <!-- --> |
| </a><code><a href="../../plan/RelRule.Done.html" title="interface in org.apache.calcite.plan">RelRule.Done</a>, <a href="../../plan/RelRule.MatchHandler.html" title="interface in org.apache.calcite.plan">RelRule.MatchHandler</a><<a href="../../plan/RelRule.MatchHandler.html" title="type parameter in RelRule.MatchHandler">R</a> extends <a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a>>, <a href="../../plan/RelRule.OperandBuilder.html" title="interface in org.apache.calcite.plan">RelRule.OperandBuilder</a>, <a href="../../plan/RelRule.OperandDetailBuilder.html" title="interface in org.apache.calcite.plan">RelRule.OperandDetailBuilder</a><<a href="../../plan/RelRule.OperandDetailBuilder.html" title="type parameter in RelRule.OperandDetailBuilder">R</a> extends <a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>>, <a href="../../plan/RelRule.OperandTransform.html" title="interface in org.apache.calcite.plan">RelRule.OperandTransform</a></code></div> |
| <div class="inheritedList"> |
| <h2>Nested classes/interfaces inherited from class org.apache.calcite.plan.<a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></h2> |
| <a id="nested.classes.inherited.from.class.org.apache.calcite.plan.RelOptRule"> |
| <!-- --> |
| </a><code><a href="../../plan/RelOptRule.ConverterRelOptRuleOperand.html" title="class in org.apache.calcite.plan">RelOptRule.ConverterRelOptRuleOperand</a></code></div> |
| </section> |
| </li> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <li class="blockList"> |
| <section class="fieldSummary"><a id="field.summary"> |
| <!-- --> |
| </a> |
| <h2>Field Summary</h2> |
| <div class="inheritedList"> |
| <h3>Fields inherited from class org.apache.calcite.rel.rules.<a href="ReduceExpressionsRule.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule</a></h3> |
| <a id="fields.inherited.from.class.org.apache.calcite.rel.rules.ReduceExpressionsRule"> |
| <!-- --> |
| </a><code><a href="ReduceExpressionsRule.html#EXCLUSION_PATTERN">EXCLUSION_PATTERN</a></code></div> |
| <div class="inheritedList"> |
| <h3>Fields inherited from class org.apache.calcite.plan.<a href="../../plan/RelRule.html" title="class in org.apache.calcite.plan">RelRule</a></h3> |
| <a id="fields.inherited.from.class.org.apache.calcite.plan.RelRule"> |
| <!-- --> |
| </a><code><a href="../../plan/RelRule.html#config">config</a></code></div> |
| <div class="inheritedList"> |
| <h3>Fields inherited from class org.apache.calcite.plan.<a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></h3> |
| <a id="fields.inherited.from.class.org.apache.calcite.plan.RelOptRule"> |
| <!-- --> |
| </a><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></div> |
| </section> |
| </li> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <li class="blockList"> |
| <section class="constructorSummary"><a id="constructor.summary"> |
| <!-- --> |
| </a> |
| <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> </code></td> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.lang.Class,boolean,org.apache.calcite.tools.RelBuilderFactory)">FilterReduceExpressionsRule</a></span>​(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><? extends <a href="../core/Filter.html" title="class in org.apache.calcite.rel.core">Filter</a>> filterClass, |
| boolean matchNullability, |
| <a href="../../tools/RelBuilderFactory.html" title="interface in org.apache.calcite.tools">RelBuilderFactory</a> relBuilderFactory)</code></th> |
| <td class="colLast"> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span></div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code> </code></td> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.lang.Class,org.apache.calcite.tools.RelBuilderFactory)">FilterReduceExpressionsRule</a></span>​(<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><? extends <a href="../core/Filter.html" title="class in org.apache.calcite.rel.core">Filter</a>> filterClass, |
| <a href="../../tools/RelBuilderFactory.html" title="interface in org.apache.calcite.tools">RelBuilderFactory</a> relBuilderFactory)</code></th> |
| <td class="colLast"> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span></div> |
| </td> |
| </tr> |
| <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.rel.rules.ReduceExpressionsRule.FilterReduceExpressionsRule.Config)">FilterReduceExpressionsRule</a></span>​(<a href="ReduceExpressionsRule.FilterReduceExpressionsRule.Config.html" title="interface in org.apache.calcite.rel.rules">ReduceExpressionsRule.FilterReduceExpressionsRule.Config</a> config)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a FilterReduceExpressionsRule.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li class="blockList"> |
| <section class="methodSummary"><a id="method.summary"> |
| <!-- --> |
| </a> |
| <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>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="#createEmptyRelOrEquivalent(org.apache.calcite.plan.RelOptRuleCall,org.apache.calcite.rel.core.Filter)">createEmptyRelOrEquivalent</a></span>​(<a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call, |
| <a href="../core/Filter.html" title="class in org.apache.calcite.rel.core">Filter</a> input)</code></th> |
| <td class="colLast"> |
| <div class="block">For static schema systems, a filter that is always false or null can be |
| replaced by a values operator that produces no rows, as the schema |
| information can just be taken from the input Rel.</div> |
| </td> |
| </tr> |
| <tr class="rowColor" id="i1"> |
| <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>​(<a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call)</code></th> |
| <td class="colLast"> |
| <div class="block">Receives notification about a rule match.</div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| <div class="inheritedList"> |
| <h3>Methods inherited from class org.apache.calcite.rel.rules.<a href="ReduceExpressionsRule.html" title="class in org.apache.calcite.rel.rules">ReduceExpressionsRule</a></h3> |
| <a id="methods.inherited.from.class.org.apache.calcite.rel.rules.ReduceExpressionsRule"> |
| <!-- --> |
| </a><code><a href="ReduceExpressionsRule.html#findReducibleExps(org.apache.calcite.rel.type.RelDataTypeFactory,java.util.List,com.google.common.collect.ImmutableMap,java.util.List,java.util.List)">findReducibleExps</a>, <a href="ReduceExpressionsRule.html#predicateConstants(java.lang.Class,org.apache.calcite.rex.RexBuilder,org.apache.calcite.plan.RelOptPredicateList)">predicateConstants</a>, <a href="ReduceExpressionsRule.html#pushPredicateIntoCase(org.apache.calcite.rex.RexCall)">pushPredicateIntoCase</a>, <a href="ReduceExpressionsRule.html#reduceExpressions(org.apache.calcite.rel.RelNode,java.util.List,org.apache.calcite.plan.RelOptPredicateList)">reduceExpressions</a>, <a href="ReduceExpressionsRule.html#reduceExpressions(org.apache.calcite.rel.RelNode,java.util.List,org.apache.calcite.plan.RelOptPredicateList,boolean)">reduceExpressions</a>, <a href="ReduceExpressionsRule.html#reduceExpressions(org.apache.calcite.rel.RelNode,java.util.List,org.apache.calcite.plan.RelOptPredicateList,boolean,boolean)">reduceExpressions</a>, <a href="ReduceExpressionsRule.html#reduceExpressionsInternal(org.apache.calcite.rel.RelNode,org.apache.calcite.rex.RexSimplify,org.apache.calcite.rex.RexUnknownAs,java.util.List,org.apache.calcite.plan.RelOptPredicateList)">reduceExpressionsInternal</a>, <a href="ReduceExpressionsRule.html#substitute(org.apache.calcite.rex.RexCall,int,org.apache.calcite.rex.RexNode)">substitute</a></code></div> |
| <div class="inheritedList"> |
| <h3>Methods inherited from class org.apache.calcite.plan.<a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></h3> |
| <a id="methods.inherited.from.class.org.apache.calcite.plan.RelOptRule"> |
| <!-- --> |
| </a><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></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.rules.<a href="SubstitutionRule.html" title="interface in org.apache.calcite.rel.rules">SubstitutionRule</a></h3> |
| <a id="methods.inherited.from.class.org.apache.calcite.rel.rules.SubstitutionRule"> |
| <!-- --> |
| </a><code><a href="SubstitutionRule.html#autoPruneOld()">autoPruneOld</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="blockList"> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <li class="blockList"> |
| <section class="constructorDetails"><a id="constructor.detail"> |
| <!-- --> |
| </a> |
| <h2>Constructor Details</h2> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="<init>(org.apache.calcite.rel.rules.ReduceExpressionsRule.FilterReduceExpressionsRule.Config)">FilterReduceExpressionsRule</a></h3> |
| <div class="memberSignature"><span class="modifiers">protected</span> <span class="memberName">FilterReduceExpressionsRule</span>​(<span class="arguments"><a href="ReduceExpressionsRule.FilterReduceExpressionsRule.Config.html" title="interface in org.apache.calcite.rel.rules">ReduceExpressionsRule.FilterReduceExpressionsRule.Config</a> config)</span></div> |
| <div class="block">Creates a FilterReduceExpressionsRule.</div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="<init>(java.lang.Class,org.apache.calcite.tools.RelBuilderFactory)">FilterReduceExpressionsRule</a></h3> |
| <div class="memberSignature"><span class="annotations"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang" class="externalLink">@Deprecated</a> |
| </span><span class="modifiers">public</span> <span class="memberName">FilterReduceExpressionsRule</span>​(<span class="arguments"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><? extends <a href="../core/Filter.html" title="class in org.apache.calcite.rel.core">Filter</a>> filterClass, |
| <a href="../../tools/RelBuilderFactory.html" title="interface in org.apache.calcite.tools">RelBuilderFactory</a> relBuilderFactory)</span></div> |
| <div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span></div> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="<init>(java.lang.Class,boolean,org.apache.calcite.tools.RelBuilderFactory)">FilterReduceExpressionsRule</a></h3> |
| <div class="memberSignature"><span class="annotations"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang" class="externalLink">@Deprecated</a> |
| </span><span class="modifiers">public</span> <span class="memberName">FilterReduceExpressionsRule</span>​(<span class="arguments"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang" class="externalLink">Class</a><? extends <a href="../core/Filter.html" title="class in org.apache.calcite.rel.core">Filter</a>> filterClass, |
| boolean matchNullability, |
| <a href="../../tools/RelBuilderFactory.html" title="interface in org.apache.calcite.tools">RelBuilderFactory</a> relBuilderFactory)</span></div> |
| <div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li class="blockList"> |
| <section class="methodDetails"><a id="method.detail"> |
| <!-- --> |
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| <h2>Method Details</h2> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="onMatch(org.apache.calcite.plan.RelOptRuleCall)">onMatch</a></h3> |
| <div class="memberSignature"><span class="modifiers">public</span> <span class="returnType">void</span> <span class="memberName">onMatch</span>​(<span class="arguments"><a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call)</span></div> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <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,org.apache.calcite.plan.RelHintsPropagator)"><code>RelOptRuleCall.transformTo(org.apache.calcite.rel.RelNode, java.util.Map<org.apache.calcite.rel.RelNode, org.apache.calcite.rel.RelNode>, org.apache.calcite.plan.RelHintsPropagator)</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> in class <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> |
| </dl> |
| </section> |
| </li> |
| <li class="blockList"> |
| <section class="detail"> |
| <h3><a id="createEmptyRelOrEquivalent(org.apache.calcite.plan.RelOptRuleCall,org.apache.calcite.rel.core.Filter)">createEmptyRelOrEquivalent</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">createEmptyRelOrEquivalent</span>​(<span class="arguments"><a href="../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call, |
| <a href="../core/Filter.html" title="class in org.apache.calcite.rel.core">Filter</a> input)</span></div> |
| <div class="block">For static schema systems, a filter that is always false or null can be |
| replaced by a values operator that produces no rows, as the schema |
| information can just be taken from the input Rel. In dynamic schema |
| environments, the filter might have an unknown input type, in these cases |
| they must define a system specific alternative to a Values operator, such |
| as inserting a limit 0 instead of a filter on top of the original input. |
| |
| <p>The default implementation of this method is to call |
| <a href="../../tools/RelBuilder.html#empty()"><code>RelBuilder.empty()</code></a>, which for the static schema will be optimized |
| to an empty |
| <a href="../core/Values.html" title="class in org.apache.calcite.rel.core"><code>Values</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>input</code> - rel to replace, assumes caller has already determined |
| equivalence to Values operation for 0 records or a |
| false filter.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>equivalent but less expensive replacement rel</dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </div> |
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