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| <li>Summary: </li> |
| <li><a href="#nested-class-summary">Nested</a> | </li> |
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| <li>Detail: </li> |
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| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.calcite.rel.rules.materialize</a></div> |
| <h1 title="Class MaterializedViewRule" class="title">Class MaterializedViewRule<C extends <a href="MaterializedViewRule.Config.html" title="interface in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.Config</a>></h1> |
| </div> |
| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">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">org.apache.calcite.rel.rules.materialize.MaterializedViewRule<C></div> |
| </div> |
| </div> |
| </div> |
| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>C</code> - Configuration type</dd> |
| </dl> |
| <dl class="notes"> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><code><a href="MaterializedViewAggregateRule.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewAggregateRule</a></code>, <code><a href="MaterializedViewJoinRule.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewJoinRule</a></code></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public abstract class </span><span class="element-name type-name-label">MaterializedViewRule<C extends <a href="MaterializedViewRule.Config.html" title="interface in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.Config</a>></span> |
| <span class="extends-implements">extends <a href="../../../plan/RelRule.html" title="class in org.apache.calcite.plan">RelRule</a><C></span></div> |
| <div class="block">Planner rule that converts a <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core"><code>Project</code></a> |
| followed by <a href="../../core/Aggregate.html" title="class in org.apache.calcite.rel.core"><code>Aggregate</code></a> or an |
| <a href="../../core/Aggregate.html" title="class in org.apache.calcite.rel.core"><code>Aggregate</code></a> to a scan (and possibly |
| other operations) over a materialized view.</div> |
| </section> |
| <section class="summary"> |
| <ul class="summary-list"> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
| <li> |
| <section class="nested-class-summary" id="nested-class-summary"> |
| <h2>Nested Class Summary</h2> |
| <div class="caption"><span>Nested Classes</span></div> |
| <div class="summary-table three-column-summary"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Class</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>static interface </code></div> |
| <div class="col-second even-row-color"><code><a href="MaterializedViewRule.Config.html" class="type-name-link" title="interface in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.Config</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Rule configuration.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>protected static class </code></div> |
| <div class="col-second odd-row-color"><code><a href="MaterializedViewRule.Edge.html" class="type-name-link" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.Edge</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">Edge for graph.</div> |
| </div> |
| <div class="col-first even-row-color"><code>protected static class </code></div> |
| <div class="col-second even-row-color"><code><a href="MaterializedViewRule.EquivalenceClasses.html" class="type-name-link" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Class representing an equivalence class, i.e., a set of equivalent columns</div> |
| </div> |
| <div class="col-first odd-row-color"><code>protected static enum </code></div> |
| <div class="col-second odd-row-color"><code><a href="MaterializedViewRule.MatchModality.html" class="type-name-link" title="enum in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.MatchModality</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">Complete, view partial, or query partial.</div> |
| </div> |
| <div class="col-first even-row-color"><code>protected static class </code></div> |
| <div class="col-second even-row-color"><code><a href="MaterializedViewRule.NodeLineage.html" class="type-name-link" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.NodeLineage</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Expression lineage details.</div> |
| </div> |
| <div class="col-first odd-row-color"><code>protected static class </code></div> |
| <div class="col-second odd-row-color"><code><a href="MaterializedViewRule.ViewPartialRewriting.html" class="type-name-link" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.ViewPartialRewriting</a></code></div> |
| <div class="col-last odd-row-color"> |
| <div class="block">View partitioning result.</div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h2 id="nested-classes-inherited-from-class-org.apache.calcite.plan.RelRule">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> |
| <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="inherited-list"> |
| <h2 id="nested-classes-inherited-from-class-org.apache.calcite.plan.RelOptRule">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> |
| <code><a href="../../../plan/RelOptRule.ConverterRelOptRuleOperand.html" title="class in org.apache.calcite.plan">RelOptRule.ConverterRelOptRuleOperand</a></code></div> |
| </section> |
| </li> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <li> |
| <section class="field-summary" id="field-summary"> |
| <h2>Field Summary</h2> |
| <div class="inherited-list"> |
| <h3 id="fields-inherited-from-class-org.apache.calcite.plan.RelRule">Fields inherited from class org.apache.calcite.plan.<a href="../../../plan/RelRule.html" title="class in org.apache.calcite.plan">RelRule</a></h3> |
| <code><a href="../../../plan/RelRule.html#config">config</a></code></div> |
| <div class="inherited-list"> |
| <h3 id="fields-inherited-from-class-org.apache.calcite.plan.RelOptRule">Fields inherited from class org.apache.calcite.plan.<a href="../../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></h3> |
| <code><a href="../../../plan/RelOptRule.html#description">description</a>, <a href="../../../plan/RelOptRule.html#operands">operands</a>, <a href="../../../plan/RelOptRule.html#relBuilderFactory">relBuilderFactory</a></code></div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li> |
| <section class="method-summary" id="method-summary"> |
| <h2>Method Summary</h2> |
| <div id="method-summary-table"> |
| <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab3" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab3', 3)" class="table-tab">Abstract Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div> |
| <div id="method-summary-table.tabpanel" role="tabpanel"> |
| <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Method</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected boolean</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#compensatePartial(java.util.Set,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,java.util.Set,com.google.common.collect.Multimap)" class="member-name-link">compensatePartial</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a><<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> sourceTableRefs, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> sourceEC, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a><<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> targetTableRefs, |
| @Nullable com.google.common.collect.Multimap<<a href="../../../rex/RexTableInputRef.html" title="class in org.apache.calcite.rex">RexTableInputRef</a>,<wbr><a href="../../../rex/RexTableInputRef.html" title="class in org.apache.calcite.rex">RexTableInputRef</a>> compensationEquiColumns)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">It checks whether the target can be rewritten using the source even though the |
| source uses additional tables.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>protected abstract @Nullable <a href="MaterializedViewRule.ViewPartialRewriting.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.ViewPartialRewriting</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#compensateViewPartial(org.apache.calcite.tools.RelBuilder,org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,java.util.Set,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,java.util.Set)" class="member-name-link">compensateViewPartial</a><wbr>(<a href="../../../tools/RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a> relBuilder, |
| <a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> input, |
| @Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a><<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> queryTableRefs, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> queryEC, |
| @Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topViewProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> viewNode, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a><<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> viewTableRefs)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">It checks whether the query can be rewritten using the view even though the |
| query uses additional tables.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected @Nullable <a href="../../../util/Pair.html" title="class in org.apache.calcite.util">Pair</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<wbr><a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#computeCompensationPredicates(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexSimplify,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,org.apache.calcite.util.Pair,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,org.apache.calcite.util.Pair,com.google.common.collect.BiMap)" class="member-name-link">computeCompensationPredicates</a><wbr>(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexSimplify.html" title="class in org.apache.calcite.rex">RexSimplify</a> simplify, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> sourceEC, |
| <a href="../../../util/Pair.html" title="class in org.apache.calcite.util">Pair</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<wbr><a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> sourcePreds, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> targetEC, |
| <a href="../../../util/Pair.html" title="class in org.apache.calcite.util">Pair</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<wbr><a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> targetPreds, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> sourceToTargetTableMapping)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">We check whether the predicates in the source are contained in the predicates |
| in the target.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>protected abstract @Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#createUnion(org.apache.calcite.tools.RelBuilder,org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode)" class="member-name-link">createUnion</a><wbr>(<a href="../../../tools/RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a> relBuilder, |
| <a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| @Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> topProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> unionInputQuery, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> unionInputView)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">If the view will be used in a union rewriting, this method is responsible for |
| generating the union and any other operator needed on top of it, e.g., a Project |
| operator.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected @Nullable com.google.common.collect.Multimap<<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#extractPossibleMapping(java.util.List,java.util.List)" class="member-name-link">extractPossibleMapping</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a><<a href="../../../rex/RexTableInputRef.html" title="class in org.apache.calcite.rex">RexTableInputRef</a>>> sourceEquivalenceClasses, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a><<a href="../../../rex/RexTableInputRef.html" title="class in org.apache.calcite.rex">RexTableInputRef</a>>> targetEquivalenceClasses)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Given the source and target equivalence classes, it extracts the possible mappings |
| from each source equivalence class to each target equivalence class.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#extractReferences(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.RelNode)" class="member-name-link">extractReferences</a><wbr>(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">If the node is an Aggregate, it returns a list of references to the grouping columns.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected @Nullable <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#generateEquivalenceClasses(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses)" class="member-name-link">generateEquivalenceClasses</a><wbr>(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> sourceEC, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> targetEC)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Given the equi-column predicates of the source and the target and the |
| computed equivalence classes, it extracts possible mappings between |
| the equivalence classes.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="MaterializedViewRule.NodeLineage.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.NodeLineage</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#generateSwapColumnTableReferencesLineage(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,com.google.common.collect.BiMap,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,java.util.List)" class="member-name-link">generateSwapColumnTableReferencesLineage</a><wbr>(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> tableMapping, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> ec, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> nodeExprs)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">It swaps the column references and then the table references of the input |
| expressions using the equivalence classes and the table mapping.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="MaterializedViewRule.NodeLineage.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.NodeLineage</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#generateSwapTableColumnReferencesLineage(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,com.google.common.collect.BiMap,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,java.util.List)" class="member-name-link">generateSwapTableColumnReferencesLineage</a><wbr>(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> tableMapping, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> ec, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> nodeExprs)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">It swaps the table references and then the column references of the input |
| expressions using the table mapping and the equivalence classes.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>>></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#generateTableMappings(com.google.common.collect.Multimap)" class="member-name-link">generateTableMappings</a><wbr>(com.google.common.collect.Multimap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> multiMapTables)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">It will flatten a multimap containing table references to table references, |
| producing all possible combinations of mappings.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>protected abstract boolean</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#isValidPlan(org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.metadata.RelMetadataQuery)" class="member-name-link">isValidPlan</a><wbr>(@Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected boolean</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#isValidRelNodePlan(org.apache.calcite.rel.RelNode,org.apache.calcite.rel.metadata.RelMetadataQuery)" class="member-name-link">isValidRelNodePlan</a><wbr>(<a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Returns whether a RelNode is a valid tree.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>boolean</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#matches(org.apache.calcite.plan.RelOptRuleCall)" class="member-name-link">matches</a><wbr>(<a href="../../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Returns whether this rule could possibly match the given operands.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#perform(org.apache.calcite.plan.RelOptRuleCall,org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode)" class="member-name-link">perform</a><wbr>(<a href="../../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call, |
| @Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Rewriting logic is based on "Optimizing Queries Using Materialized Views: |
| A Practical, Scalable Solution" by Goldstein and Larson.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>protected abstract <a href="../../../util/Pair.html" title="class in org.apache.calcite.util">Pair</a><@Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>,<wbr><a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#pushFilterToOriginalViewPlan(org.apache.calcite.tools.RelBuilder,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode,org.apache.calcite.rex.RexNode)" class="member-name-link">pushFilterToOriginalViewPlan</a><wbr>(<a href="../../../tools/RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a> builder, |
| @Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> topViewProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> viewNode, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> cond)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Once we create a compensation predicate, this method is responsible for pushing |
| the resulting filter through the view nodes.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#replaceWithOriginalReferences(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.NodeLineage,org.apache.calcite.rex.RexNode)" class="member-name-link">replaceWithOriginalReferences</a><wbr>(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| <a href="MaterializedViewRule.NodeLineage.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.NodeLineage</a> nodeLineage, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> exprToRewrite)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Given the input expression, it will replace (sub)expressions when possible |
| using the content of the mapping.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected @Nullable <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#rewriteExpression(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode,java.util.List,com.google.common.collect.BiMap,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,boolean,org.apache.calcite.rex.RexNode)" class="member-name-link">rewriteExpression</a><wbr>(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> targetNode, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> nodeExprs, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> tableMapping, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> ec, |
| boolean swapTableColumn, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> exprToRewrite)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">First, the method takes the node expressions <code>nodeExprs</code> and swaps the table |
| and column references using the table mapping and the equivalence classes.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected @Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#rewriteExpressions(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode,java.util.List,com.google.common.collect.BiMap,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,boolean,java.util.List)" class="member-name-link">rewriteExpressions</a><wbr>(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> targetNode, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> nodeExprs, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> tableMapping, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> ec, |
| boolean swapTableColumn, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> exprsToRewrite)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">First, the method takes the node expressions <code>nodeExprs</code> and swaps the table |
| and column references using the table mapping and the equivalence classes.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>protected abstract @Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#rewriteQuery(org.apache.calcite.tools.RelBuilder,org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexSimplify,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexNode,org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,com.google.common.collect.BiMap,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses)" class="member-name-link">rewriteQuery</a><wbr>(<a href="../../../tools/RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a> relBuilder, |
| <a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexSimplify.html" title="class in org.apache.calcite.rex">RexSimplify</a> simplify, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> compensationColumnsEquiPred, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> otherCompensationPred, |
| @Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> viewToQueryTableMapping, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> viewEC, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> queryEC)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">If the view will be used in a union rewriting, this method is responsible for |
| rewriting the query branch of the union using the given compensation predicate.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>protected abstract @Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#rewriteView(org.apache.calcite.tools.RelBuilder,org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexSimplify,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.MatchModality,boolean,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,com.google.common.collect.BiMap,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses)" class="member-name-link">rewriteView</a><wbr>(<a href="../../../tools/RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a> relBuilder, |
| <a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexSimplify.html" title="class in org.apache.calcite.rex">RexSimplify</a> simplify, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="MaterializedViewRule.MatchModality.html" title="enum in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.MatchModality</a> matchModality, |
| boolean unionRewriting, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> input, |
| @Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| @Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topViewProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> viewNode, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> queryToViewTableMapping, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> queryEC)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Rewrites the query using the given view query.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected @Nullable <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#shuttleReferences(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexNode,com.google.common.collect.Multimap)" class="member-name-link">shuttleReferences</a><wbr>(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> expr, |
| com.google.common.collect.Multimap<<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>> exprsLineage)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Replaces all the possible sub-expressions by input references |
| to the input node.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected @Nullable <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#shuttleReferences(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexNode,com.google.common.collect.Multimap,org.apache.calcite.rel.RelNode,com.google.common.collect.Multimap)" class="member-name-link">shuttleReferences</a><wbr>(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> expr, |
| com.google.common.collect.Multimap<<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>> exprsLineage, |
| @Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| @Nullable com.google.common.collect.Multimap<<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>> rewritingMapping)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Replaces all the possible sub-expressions by input references |
| to the input node.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected @Nullable <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#shuttleReferences(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexNode,org.apache.calcite.util.mapping.Mapping)" class="member-name-link">shuttleReferences</a><wbr>(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> node, |
| <a href="../../../util/mapping/Mapping.html" title="interface in org.apache.calcite.util.mapping">Mapping</a> mapping)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Replaces all the input references by the position in the |
| input column set.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected <a href="../../../util/Pair.html" title="class in org.apache.calcite.util">Pair</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<wbr><a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#splitPredicates(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexNode)" class="member-name-link">splitPredicates</a><wbr>(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> pred)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Classifies each of the predicates in the list into one of these two |
| categories: |
| |
| |
| 1-l) column equality predicates, or |
| 2-r) residual predicates, all the rest |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-org.apache.calcite.plan.RelOptRule">Methods inherited from class org.apache.calcite.plan.<a href="../../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></h3> |
| <code><a href="../../../plan/RelOptRule.html#any()">any</a>, <a href="../../../plan/RelOptRule.html#convert(org.apache.calcite.rel.RelNode,org.apache.calcite.plan.RelTrait)">convert</a>, <a href="../../../plan/RelOptRule.html#convert(org.apache.calcite.rel.RelNode,org.apache.calcite.plan.RelTraitSet)">convert</a>, <a href="../../../plan/RelOptRule.html#convertList(java.util.List,org.apache.calcite.plan.RelTrait)">convertList</a>, <a href="../../../plan/RelOptRule.html#convertOperand(java.lang.Class,com.google.common.base.Predicate,org.apache.calcite.plan.RelTrait)">convertOperand</a>, <a href="../../../plan/RelOptRule.html#convertOperand(java.lang.Class,java.util.function.Predicate,org.apache.calcite.plan.RelTrait)">convertOperand</a>, <a href="../../../plan/RelOptRule.html#equals(java.lang.Object)">equals</a>, <a href="../../../plan/RelOptRule.html#equals(org.apache.calcite.plan.RelOptRule)">equals</a>, <a href="../../../plan/RelOptRule.html#getOperand()">getOperand</a>, <a href="../../../plan/RelOptRule.html#getOperands()">getOperands</a>, <a href="../../../plan/RelOptRule.html#getOutConvention()">getOutConvention</a>, <a href="../../../plan/RelOptRule.html#getOutTrait()">getOutTrait</a>, <a href="../../../plan/RelOptRule.html#hashCode()">hashCode</a>, <a href="../../../plan/RelOptRule.html#none()">none</a>, <a href="../../../plan/RelOptRule.html#onMatch(org.apache.calcite.plan.RelOptRuleCall)">onMatch</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="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method-detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="matches(org.apache.calcite.plan.RelOptRuleCall)"> |
| <h3>matches</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">boolean</span> <span class="element-name">matches</span><wbr><span class="parameters">(<a href="../../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call)</span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from class: <code><a href="../../../plan/RelOptRule.html#matches(org.apache.calcite.plan.RelOptRuleCall)">RelOptRule</a></code></span></div> |
| <div class="block">Returns whether this rule could possibly match the given operands. |
| |
| <p>This method is an opportunity to apply side-conditions to a rule. The |
| <a href="../../../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan"><code>RelOptPlanner</code></a> calls this method after matching all operands of |
| the rule, and before calling <a href="../../../plan/RelOptRule.html#onMatch(org.apache.calcite.plan.RelOptRuleCall)"><code>RelOptRule.onMatch(RelOptRuleCall)</code></a>. |
| |
| <p>In implementations of <a href="../../../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan"><code>RelOptPlanner</code></a> which may queue up a |
| matched <a href="../../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan"><code>RelOptRuleCall</code></a> for a long time before calling |
| <a href="../../../plan/RelOptRule.html#onMatch(org.apache.calcite.plan.RelOptRuleCall)"><code>RelOptRule.onMatch(RelOptRuleCall)</code></a>, this method is beneficial because it |
| allows the planner to discard rules earlier in the process. |
| |
| <p>The default implementation of this method returns <code>true</code>. |
| It is acceptable for any implementation of this method to give a false |
| positives, that is, to say that the rule matches the operands but have |
| <a href="../../../plan/RelOptRule.html#onMatch(org.apache.calcite.plan.RelOptRuleCall)"><code>RelOptRule.onMatch(RelOptRuleCall)</code></a> subsequently not generate any |
| successors. |
| |
| <p>The following script is useful to identify rules which commonly |
| produce no successors. You should override this method for these rules: |
| |
| <blockquote> |
| <pre><code>awk ' |
| /Apply rule/ {rule=$4; ruleCount[rule]++;} |
| /generated 0 successors/ {ruleMiss[rule]++;} |
| END { |
| printf "%-30s %s %s\n", "Rule", "Fire", "Miss"; |
| for (i in ruleCount) { |
| printf "%-30s %5d %5d\n", i, ruleCount[i], ruleMiss[i]; |
| } |
| } ' FarragoTrace.log</code></pre> |
| </blockquote></div> |
| <dl class="notes"> |
| <dt>Overrides:</dt> |
| <dd><code><a href="../../../plan/RelOptRule.html#matches(org.apache.calcite.plan.RelOptRuleCall)">matches</a></code> in class <code><a href="../../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a></code></dd> |
| <dt>Parameters:</dt> |
| <dd><code>call</code> - Rule call which has been determined to match all operands of |
| this rule</dd> |
| <dt>Returns:</dt> |
| <dd>whether this RelOptRule matches a given RelOptRuleCall</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="perform(org.apache.calcite.plan.RelOptRuleCall,org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode)"> |
| <h3>perform</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">void</span> <span class="element-name">perform</span><wbr><span class="parameters">(<a href="../../../plan/RelOptRuleCall.html" title="class in org.apache.calcite.plan">RelOptRuleCall</a> call, |
| @Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node)</span></div> |
| <div class="block">Rewriting logic is based on "Optimizing Queries Using Materialized Views: |
| A Practical, Scalable Solution" by Goldstein and Larson. |
| |
| <p>On the query side, rules matches a Project-node chain or node, where node |
| is either an Aggregate or a Join. Subplan rooted at the node operator must |
| be composed of one or more of the following operators: TableScan, Project, |
| Filter, and Join. |
| |
| <p>For each join MV, we need to check the following: |
| <ol> |
| <li> The plan rooted at the Join operator in the view produces all rows |
| needed by the plan rooted at the Join operator in the query.</li> |
| <li> All columns required by compensating predicates, i.e., predicates that |
| need to be enforced over the view, are available at the view output.</li> |
| <li> All output expressions can be computed from the output of the view.</li> |
| <li> All output rows occur with the correct duplication factor. We might |
| rely on existing Unique-Key - Foreign-Key relationships to extract that |
| information.</li> |
| </ol> |
| |
| <p>In turn, for each aggregate MV, we need to check the following: |
| <ol> |
| <li> The plan rooted at the Aggregate operator in the view produces all rows |
| needed by the plan rooted at the Aggregate operator in the query.</li> |
| <li> All columns required by compensating predicates, i.e., predicates that |
| need to be enforced over the view, are available at the view output.</li> |
| <li> The grouping columns in the query are a subset of the grouping columns |
| in the view.</li> |
| <li> All columns required to perform further grouping are available in the |
| view output.</li> |
| <li> All columns required to compute output expressions are available in the |
| view output.</li> |
| </ol> |
| |
| <p>The rule contains multiple extensions compared to the original paper. One of |
| them is the possibility of creating rewritings using Union operators, e.g., if |
| the result of a query is partially contained in the materialized view.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="isValidPlan(org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.metadata.RelMetadataQuery)"> |
| <h3>isValidPlan</h3> |
| <div class="member-signature"><span class="modifiers">protected abstract</span> <span class="return-type">boolean</span> <span class="element-name">isValidPlan</span><wbr><span class="parameters">(@Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="compensateViewPartial(org.apache.calcite.tools.RelBuilder,org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,java.util.Set,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,java.util.Set)"> |
| <h3>compensateViewPartial</h3> |
| <div class="member-signature"><span class="modifiers">protected abstract</span> <span class="return-type">@Nullable <a href="MaterializedViewRule.ViewPartialRewriting.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.ViewPartialRewriting</a></span> <span class="element-name">compensateViewPartial</span><wbr><span class="parameters">(<a href="../../../tools/RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a> relBuilder, |
| <a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> input, |
| @Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a><<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> queryTableRefs, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> queryEC, |
| @Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topViewProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> viewNode, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a><<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> viewTableRefs)</span></div> |
| <div class="block">It checks whether the query can be rewritten using the view even though the |
| query uses additional tables. |
| |
| <p>Rules implementing the method should follow different approaches depending on the |
| operators they rewrite.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>ViewPartialRewriting, or null if the rewrite can't be done</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="rewriteQuery(org.apache.calcite.tools.RelBuilder,org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexSimplify,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rex.RexNode,org.apache.calcite.rex.RexNode,org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,com.google.common.collect.BiMap,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses)"> |
| <h3>rewriteQuery</h3> |
| <div class="member-signature"><span class="modifiers">protected abstract</span> <span class="return-type">@Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></span> <span class="element-name">rewriteQuery</span><wbr><span class="parameters">(<a href="../../../tools/RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a> relBuilder, |
| <a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexSimplify.html" title="class in org.apache.calcite.rex">RexSimplify</a> simplify, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> compensationColumnsEquiPred, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> otherCompensationPred, |
| @Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> viewToQueryTableMapping, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> viewEC, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> queryEC)</span></div> |
| <div class="block">If the view will be used in a union rewriting, this method is responsible for |
| rewriting the query branch of the union using the given compensation predicate. |
| |
| <p>If a rewriting can be produced, we return that rewriting. If it cannot |
| be produced, we will return null.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="createUnion(org.apache.calcite.tools.RelBuilder,org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode)"> |
| <h3>createUnion</h3> |
| <div class="member-signature"><span class="modifiers">protected abstract</span> <span class="return-type">@Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></span> <span class="element-name">createUnion</span><wbr><span class="parameters">(<a href="../../../tools/RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a> relBuilder, |
| <a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| @Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> topProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> unionInputQuery, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> unionInputView)</span></div> |
| <div class="block">If the view will be used in a union rewriting, this method is responsible for |
| generating the union and any other operator needed on top of it, e.g., a Project |
| operator.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="rewriteView(org.apache.calcite.tools.RelBuilder,org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexSimplify,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.MatchModality,boolean,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.core.Project,org.apache.calcite.rel.RelNode,com.google.common.collect.BiMap,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses)"> |
| <h3>rewriteView</h3> |
| <div class="member-signature"><span class="modifiers">protected abstract</span> <span class="return-type">@Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></span> <span class="element-name">rewriteView</span><wbr><span class="parameters">(<a href="../../../tools/RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a> relBuilder, |
| <a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexSimplify.html" title="class in org.apache.calcite.rex">RexSimplify</a> simplify, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="MaterializedViewRule.MatchModality.html" title="enum in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.MatchModality</a> matchModality, |
| boolean unionRewriting, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> input, |
| @Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| @Nullable <a href="../../core/Project.html" title="class in org.apache.calcite.rel.core">Project</a> topViewProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> viewNode, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> queryToViewTableMapping, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> queryEC)</span></div> |
| <div class="block">Rewrites the query using the given view query. |
| |
| <p>The input node is a Scan on the view table and possibly a compensation Filter |
| on top. If a rewriting can be produced, we return that rewriting. If it cannot |
| be produced, we will return null.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="pushFilterToOriginalViewPlan(org.apache.calcite.tools.RelBuilder,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode,org.apache.calcite.rex.RexNode)"> |
| <h3>pushFilterToOriginalViewPlan</h3> |
| <div class="member-signature"><span class="modifiers">protected abstract</span> <span class="return-type"><a href="../../../util/Pair.html" title="class in org.apache.calcite.util">Pair</a><@Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>,<wbr><a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>></span> <span class="element-name">pushFilterToOriginalViewPlan</span><wbr><span class="parameters">(<a href="../../../tools/RelBuilder.html" title="class in org.apache.calcite.tools">RelBuilder</a> builder, |
| @Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> topViewProject, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> viewNode, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> cond)</span></div> |
| <div class="block">Once we create a compensation predicate, this method is responsible for pushing |
| the resulting filter through the view nodes. This might be useful for rewritings |
| containing Aggregate operators, as some of the grouping columns might be removed, |
| which results in additional matching possibilities. |
| |
| <p>The method will return a pair of nodes: the new top project on the left and |
| the new node on the right.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="extractReferences(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.RelNode)"> |
| <h3>extractReferences</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></span> <span class="element-name">extractReferences</span><wbr><span class="parameters">(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node)</span></div> |
| <div class="block">If the node is an Aggregate, it returns a list of references to the grouping columns. |
| Otherwise, it returns a list of references to all columns in the node. |
| The returned list is immutable.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="generateTableMappings(com.google.common.collect.Multimap)"> |
| <h3>generateTableMappings</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>>></span> <span class="element-name">generateTableMappings</span><wbr><span class="parameters">(com.google.common.collect.Multimap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> multiMapTables)</span></div> |
| <div class="block">It will flatten a multimap containing table references to table references, |
| producing all possible combinations of mappings. Each of the mappings will |
| be bi-directional.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="isValidRelNodePlan(org.apache.calcite.rel.RelNode,org.apache.calcite.rel.metadata.RelMetadataQuery)"> |
| <h3>isValidRelNodePlan</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">boolean</span> <span class="element-name">isValidRelNodePlan</span><wbr><span class="parameters">(<a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</span></div> |
| <div class="block">Returns whether a RelNode is a valid tree. Currently we only support |
| TableScan - Project - Filter - Inner Join.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="splitPredicates(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexNode)"> |
| <h3>splitPredicates</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type"><a href="../../../util/Pair.html" title="class in org.apache.calcite.util">Pair</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<wbr><a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></span> <span class="element-name">splitPredicates</span><wbr><span class="parameters">(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> pred)</span></div> |
| <div class="block">Classifies each of the predicates in the list into one of these two |
| categories: |
| |
| <ul> |
| <li> 1-l) column equality predicates, or |
| <li> 2-r) residual predicates, all the rest |
| </ul> |
| |
| <p>For each category, it creates the conjunction of the predicates. The |
| result is an pair of RexNode objects corresponding to each category.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="compensatePartial(java.util.Set,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,java.util.Set,com.google.common.collect.Multimap)"> |
| <h3>compensatePartial</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">boolean</span> <span class="element-name">compensatePartial</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a><<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> sourceTableRefs, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> sourceEC, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a><<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> targetTableRefs, |
| @Nullable com.google.common.collect.Multimap<<a href="../../../rex/RexTableInputRef.html" title="class in org.apache.calcite.rex">RexTableInputRef</a>,<wbr><a href="../../../rex/RexTableInputRef.html" title="class in org.apache.calcite.rex">RexTableInputRef</a>> compensationEquiColumns)</span></div> |
| <div class="block">It checks whether the target can be rewritten using the source even though the |
| source uses additional tables. In order to do that, we need to double-check |
| that every join that exists in the source and is not in the target is a |
| cardinality-preserving join, i.e., it only appends columns to the row |
| without changing its multiplicity. Thus, the join needs to be: |
| <ul> |
| <li> Equi-join </li> |
| <li> Between all columns in the keys </li> |
| <li> Foreign-key columns do not allow NULL values </li> |
| <li> Foreign-key </li> |
| <li> Unique-key </li> |
| </ul> |
| |
| <p>If it can be rewritten, it returns true. Further, it inserts the missing equi-join |
| predicates in the input <code>compensationEquiColumns</code> multimap if it is provided. |
| If it cannot be rewritten, it returns false.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="computeCompensationPredicates(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexSimplify,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,org.apache.calcite.util.Pair,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,org.apache.calcite.util.Pair,com.google.common.collect.BiMap)"> |
| <h3>computeCompensationPredicates</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">@Nullable <a href="../../../util/Pair.html" title="class in org.apache.calcite.util">Pair</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<wbr><a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></span> <span class="element-name">computeCompensationPredicates</span><wbr><span class="parameters">(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexSimplify.html" title="class in org.apache.calcite.rex">RexSimplify</a> simplify, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> sourceEC, |
| <a href="../../../util/Pair.html" title="class in org.apache.calcite.util">Pair</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<wbr><a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> sourcePreds, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> targetEC, |
| <a href="../../../util/Pair.html" title="class in org.apache.calcite.util">Pair</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<wbr><a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> targetPreds, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> sourceToTargetTableMapping)</span></div> |
| <div class="block">We check whether the predicates in the source are contained in the predicates |
| in the target. The method treats separately the equi-column predicates, the |
| range predicates, and the rest of predicates. |
| |
| <p>If the containment is confirmed, we produce compensation predicates that |
| need to be added to the target to produce the results in the source. Thus, |
| if source and target expressions are equivalent, those predicates will be the |
| true constant. |
| |
| <p>In turn, if containment cannot be confirmed, the method returns null.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="generateEquivalenceClasses(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses)"> |
| <h3>generateEquivalenceClasses</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">@Nullable <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span> <span class="element-name">generateEquivalenceClasses</span><wbr><span class="parameters">(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> sourceEC, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> targetEC)</span></div> |
| <div class="block">Given the equi-column predicates of the source and the target and the |
| computed equivalence classes, it extracts possible mappings between |
| the equivalence classes. |
| |
| <p>If there is no mapping, it returns null. If there is a exact match, |
| it will return a compensation predicate that evaluates to true. |
| Finally, if a compensation predicate needs to be enforced on top of |
| the target to make the equivalences classes match, it returns that |
| compensation predicate.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="extractPossibleMapping(java.util.List,java.util.List)"> |
| <h3>extractPossibleMapping</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">@Nullable com.google.common.collect.Multimap<<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>></span> <span class="element-name">extractPossibleMapping</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a><<a href="../../../rex/RexTableInputRef.html" title="class in org.apache.calcite.rex">RexTableInputRef</a>>> sourceEquivalenceClasses, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Set.html" title="class or interface in java.util" class="external-link">Set</a><<a href="../../../rex/RexTableInputRef.html" title="class in org.apache.calcite.rex">RexTableInputRef</a>>> targetEquivalenceClasses)</span></div> |
| <div class="block">Given the source and target equivalence classes, it extracts the possible mappings |
| from each source equivalence class to each target equivalence class. |
| |
| <p>If any of the source equivalence classes cannot be mapped to a target equivalence |
| class, it returns null.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="rewriteExpression(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode,java.util.List,com.google.common.collect.BiMap,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,boolean,org.apache.calcite.rex.RexNode)"> |
| <h3>rewriteExpression</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">@Nullable <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span> <span class="element-name">rewriteExpression</span><wbr><span class="parameters">(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> targetNode, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> nodeExprs, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> tableMapping, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> ec, |
| boolean swapTableColumn, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> exprToRewrite)</span></div> |
| <div class="block">First, the method takes the node expressions <code>nodeExprs</code> and swaps the table |
| and column references using the table mapping and the equivalence classes. |
| If <code>swapTableColumn</code> is true, it swaps the table reference and then the column reference, |
| otherwise it swaps the column reference and then the table reference. |
| |
| <p>Then, the method will rewrite the input expression <code>exprToRewrite</code>, replacing the |
| <a href="../../../rex/RexTableInputRef.html" title="class in org.apache.calcite.rex"><code>RexTableInputRef</code></a> by references to the positions in <code>nodeExprs</code>. |
| |
| <p>The method will return the rewritten expression. If any of the expressions in the input |
| expression cannot be mapped, it will return null.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="rewriteExpressions(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode,java.util.List,com.google.common.collect.BiMap,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,boolean,java.util.List)"> |
| <h3>rewriteExpressions</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>></span> <span class="element-name">rewriteExpressions</span><wbr><span class="parameters">(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> targetNode, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> nodeExprs, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> tableMapping, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> ec, |
| boolean swapTableColumn, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> exprsToRewrite)</span></div> |
| <div class="block">First, the method takes the node expressions <code>nodeExprs</code> and swaps the table |
| and column references using the table mapping and the equivalence classes. |
| If <code>swapTableColumn</code> is true, it swaps the table reference and then the column reference, |
| otherwise it swaps the column reference and then the table reference. |
| |
| <p>Then, the method will rewrite the input expressions <code>exprsToRewrite</code>, replacing the |
| <a href="../../../rex/RexTableInputRef.html" title="class in org.apache.calcite.rex"><code>RexTableInputRef</code></a> by references to the positions in <code>nodeExprs</code>. |
| |
| <p>The method will return the rewritten expressions. If any of the subexpressions in the input |
| expressions cannot be mapped, it will return null.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="generateSwapTableColumnReferencesLineage(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,com.google.common.collect.BiMap,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,java.util.List)"> |
| <h3>generateSwapTableColumnReferencesLineage</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type"><a href="MaterializedViewRule.NodeLineage.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.NodeLineage</a></span> <span class="element-name">generateSwapTableColumnReferencesLineage</span><wbr><span class="parameters">(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> tableMapping, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> ec, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> nodeExprs)</span></div> |
| <div class="block">It swaps the table references and then the column references of the input |
| expressions using the table mapping and the equivalence classes.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="generateSwapColumnTableReferencesLineage(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.metadata.RelMetadataQuery,org.apache.calcite.rel.RelNode,com.google.common.collect.BiMap,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.EquivalenceClasses,java.util.List)"> |
| <h3>generateSwapColumnTableReferencesLineage</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type"><a href="MaterializedViewRule.NodeLineage.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.NodeLineage</a></span> <span class="element-name">generateSwapColumnTableReferencesLineage</span><wbr><span class="parameters">(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| com.google.common.collect.BiMap<<a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>,<wbr><a href="../../../rex/RexTableInputRef.RelTableRef.html" title="class in org.apache.calcite.rex">RexTableInputRef.RelTableRef</a>> tableMapping, |
| <a href="MaterializedViewRule.EquivalenceClasses.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.EquivalenceClasses</a> ec, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>> nodeExprs)</span></div> |
| <div class="block">It swaps the column references and then the table references of the input |
| expressions using the equivalence classes and the table mapping.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="replaceWithOriginalReferences(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.rules.materialize.MaterializedViewRule.NodeLineage,org.apache.calcite.rex.RexNode)"> |
| <h3>replaceWithOriginalReferences</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type"><a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span> <span class="element-name">replaceWithOriginalReferences</span><wbr><span class="parameters">(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| <a href="MaterializedViewRule.NodeLineage.html" title="class in org.apache.calcite.rel.rules.materialize">MaterializedViewRule.NodeLineage</a> nodeLineage, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> exprToRewrite)</span></div> |
| <div class="block">Given the input expression, it will replace (sub)expressions when possible |
| using the content of the mapping. In particular, the mapping contains the |
| digest of the expression and the index that the replacement input ref should |
| point to.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="shuttleReferences(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexNode,org.apache.calcite.util.mapping.Mapping)"> |
| <h3>shuttleReferences</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">@Nullable <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span> <span class="element-name">shuttleReferences</span><wbr><span class="parameters">(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> node, |
| <a href="../../../util/mapping/Mapping.html" title="interface in org.apache.calcite.util.mapping">Mapping</a> mapping)</span></div> |
| <div class="block">Replaces all the input references by the position in the |
| input column set. If a reference index cannot be found in |
| the input set, then we return null.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="shuttleReferences(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexNode,com.google.common.collect.Multimap)"> |
| <h3>shuttleReferences</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">@Nullable <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span> <span class="element-name">shuttleReferences</span><wbr><span class="parameters">(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> expr, |
| com.google.common.collect.Multimap<<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>> exprsLineage)</span></div> |
| <div class="block">Replaces all the possible sub-expressions by input references |
| to the input node.</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="shuttleReferences(org.apache.calcite.rex.RexBuilder,org.apache.calcite.rex.RexNode,com.google.common.collect.Multimap,org.apache.calcite.rel.RelNode,com.google.common.collect.Multimap)"> |
| <h3>shuttleReferences</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="return-type">@Nullable <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a></span> <span class="element-name">shuttleReferences</span><wbr><span class="parameters">(<a href="../../../rex/RexBuilder.html" title="class in org.apache.calcite.rex">RexBuilder</a> rexBuilder, |
| <a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a> expr, |
| com.google.common.collect.Multimap<<a href="../../../rex/RexNode.html" title="class in org.apache.calcite.rex">RexNode</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>> exprsLineage, |
| @Nullable <a href="../../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> node, |
| @Nullable com.google.common.collect.Multimap<<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Integer.html" title="class or interface in java.lang" class="external-link">Integer</a>> rewritingMapping)</span></div> |
| <div class="block">Replaces all the possible sub-expressions by input references |
| to the input node. If available, it uses the rewriting mapping |
| to change the position to reference. Takes the reference type |
| from the input node.</div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </section> |
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