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| <title>RelNode (Apache Calcite API)</title> |
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| <li>Summary: </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</a></div> |
| <h1 title="Interface RelNode" class="title">Interface RelNode</h1> |
| </div> |
| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>All Superinterfaces:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Cloneable.html" title="class or interface in java.lang" class="external-link">Cloneable</a></code>, <code><a href="../plan/RelOptNode.html" title="interface in org.apache.calcite.plan">RelOptNode</a></code></dd> |
| </dl> |
| <dl class="notes"> |
| <dt>All Known Subinterfaces:</dt> |
| <dd><code><a href="../interpreter/BindableRel.html" title="interface in org.apache.calcite.interpreter">BindableRel</a></code>, <code><a href="../adapter/cassandra/CassandraRel.html" title="interface in org.apache.calcite.adapter.cassandra">CassandraRel</a></code>, <code><a href="convert/Converter.html" title="interface in org.apache.calcite.rel.convert">Converter</a></code>, <code><a href="../adapter/elasticsearch/ElasticsearchRel.html" title="interface in org.apache.calcite.adapter.elasticsearch">ElasticsearchRel</a></code>, <code><a href="../adapter/enumerable/EnumerableRel.html" title="interface in org.apache.calcite.adapter.enumerable">EnumerableRel</a></code>, <code><a href="../adapter/geode/rel/GeodeRel.html" title="interface in org.apache.calcite.adapter.geode.rel">GeodeRel</a></code>, <code><a href="../adapter/innodb/InnodbRel.html" title="interface in org.apache.calcite.adapter.innodb">InnodbRel</a></code>, <code><a href="../interpreter/InterpretableRel.html" title="interface in org.apache.calcite.interpreter">InterpretableRel</a></code>, <code><a href="../adapter/jdbc/JdbcRel.html" title="interface in org.apache.calcite.adapter.jdbc">JdbcRel</a></code>, <code><a href="../adapter/mongodb/MongoRel.html" title="interface in org.apache.calcite.adapter.mongodb">MongoRel</a></code>, <code><a href="PhysicalNode.html" title="interface in org.apache.calcite.rel">PhysicalNode</a></code>, <code><a href="../adapter/pig/PigRel.html" title="interface in org.apache.calcite.adapter.pig">PigRel</a></code>, <code><a href="../sql2rel/RelStructuredTypeFlattener.SelfFlatteningRel.html" title="interface in org.apache.calcite.sql2rel">RelStructuredTypeFlattener.SelfFlatteningRel</a></code>, <code><a href="../adapter/spark/SparkRel.html" title="interface in org.apache.calcite.adapter.spark">SparkRel</a></code></dd> |
| </dl> |
| <dl class="notes"> |
| <dt>All Known Implementing Classes:</dt> |
| <dd><code><a href="../plan/volcano/AbstractConverter.html" title="class in org.apache.calcite.plan.volcano">AbstractConverter</a></code>, <code><a href="AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code>, <code><a href="core/Aggregate.html" title="class in org.apache.calcite.rel.core">Aggregate</a></code>, <code><a href="../interpreter/Bindables.BindableAggregate.html" title="class in org.apache.calcite.interpreter">Bindables.BindableAggregate</a></code>, <code><a href="../interpreter/Bindables.BindableFilter.html" title="class in org.apache.calcite.interpreter">Bindables.BindableFilter</a></code>, <code><a href="../interpreter/Bindables.BindableIntersect.html" title="class in org.apache.calcite.interpreter">Bindables.BindableIntersect</a></code>, <code><a href="../interpreter/Bindables.BindableJoin.html" title="class in org.apache.calcite.interpreter">Bindables.BindableJoin</a></code>, <code><a href="../interpreter/Bindables.BindableMatch.html" title="class in org.apache.calcite.interpreter">Bindables.BindableMatch</a></code>, <code><a href="../interpreter/Bindables.BindableMinus.html" title="class in org.apache.calcite.interpreter">Bindables.BindableMinus</a></code>, <code><a href="../interpreter/Bindables.BindableProject.html" title="class in org.apache.calcite.interpreter">Bindables.BindableProject</a></code>, <code><a href="../interpreter/Bindables.BindableSort.html" title="class in org.apache.calcite.interpreter">Bindables.BindableSort</a></code>, <code><a href="../interpreter/Bindables.BindableTableScan.html" title="class in org.apache.calcite.interpreter">Bindables.BindableTableScan</a></code>, <code><a href="../interpreter/Bindables.BindableUnion.html" title="class in org.apache.calcite.interpreter">Bindables.BindableUnion</a></code>, <code><a href="../interpreter/Bindables.BindableValues.html" title="class in org.apache.calcite.interpreter">Bindables.BindableValues</a></code>, <code><a href="../interpreter/Bindables.BindableWindow.html" title="class in org.apache.calcite.interpreter">Bindables.BindableWindow</a></code>, <code><a href="BiRel.html" title="class in org.apache.calcite.rel">BiRel</a></code>, <code><a href="core/Calc.html" title="class in org.apache.calcite.rel.core">Calc</a></code>, <code><a href="../adapter/cassandra/CassandraFilter.html" title="class in org.apache.calcite.adapter.cassandra">CassandraFilter</a></code>, <code><a href="../adapter/cassandra/CassandraLimit.html" title="class in org.apache.calcite.adapter.cassandra">CassandraLimit</a></code>, <code><a href="../adapter/cassandra/CassandraProject.html" title="class in org.apache.calcite.adapter.cassandra">CassandraProject</a></code>, <code><a href="../adapter/cassandra/CassandraSort.html" title="class in org.apache.calcite.adapter.cassandra">CassandraSort</a></code>, <code><a href="../adapter/cassandra/CassandraTableScan.html" title="class in org.apache.calcite.adapter.cassandra">CassandraTableScan</a></code>, <code><a href="../adapter/cassandra/CassandraToEnumerableConverter.html" title="class in org.apache.calcite.adapter.cassandra">CassandraToEnumerableConverter</a></code>, <code><a href="stream/Chi.html" title="class in org.apache.calcite.rel.stream">Chi</a></code>, <code><a href="core/Collect.html" title="class in org.apache.calcite.rel.core">Collect</a></code>, <code><a href="convert/ConverterImpl.html" title="class in org.apache.calcite.rel.convert">ConverterImpl</a></code>, <code><a href="core/Correlate.html" title="class in org.apache.calcite.rel.core">Correlate</a></code>, <code><a href="../adapter/csv/CsvTableScan.html" title="class in org.apache.calcite.adapter.csv">CsvTableScan</a></code>, <code><a href="../adapter/file/CsvTableScan.html" title="class in org.apache.calcite.adapter.file">CsvTableScan</a></code>, <code><a href="stream/Delta.html" title="class in org.apache.calcite.rel.stream">Delta</a></code>, <code><a href="../adapter/druid/DruidQuery.html" title="class in org.apache.calcite.adapter.druid">DruidQuery</a></code>, <code><a href="../adapter/elasticsearch/ElasticsearchAggregate.html" title="class in org.apache.calcite.adapter.elasticsearch">ElasticsearchAggregate</a></code>, <code><a href="../adapter/elasticsearch/ElasticsearchFilter.html" title="class in org.apache.calcite.adapter.elasticsearch">ElasticsearchFilter</a></code>, <code><a href="../adapter/elasticsearch/ElasticsearchProject.html" title="class in org.apache.calcite.adapter.elasticsearch">ElasticsearchProject</a></code>, <code><a href="../adapter/elasticsearch/ElasticsearchSort.html" title="class in org.apache.calcite.adapter.elasticsearch">ElasticsearchSort</a></code>, <code><a href="../adapter/elasticsearch/ElasticsearchTableScan.html" title="class in org.apache.calcite.adapter.elasticsearch">ElasticsearchTableScan</a></code>, <code><a href="../adapter/elasticsearch/ElasticsearchToEnumerableConverter.html" title="class in org.apache.calcite.adapter.elasticsearch">ElasticsearchToEnumerableConverter</a></code>, <code><a href="../adapter/enumerable/EnumerableAggregate.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableAggregate</a></code>, <code><a href="../adapter/enumerable/EnumerableAggregateBase.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableAggregateBase</a></code>, <code><a href="../adapter/enumerable/EnumerableBatchNestedLoopJoin.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableBatchNestedLoopJoin</a></code>, <code><a href="../adapter/enumerable/EnumerableBindable.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableBindable</a></code>, <code><a href="../adapter/enumerable/EnumerableCalc.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableCalc</a></code>, <code><a href="../adapter/enumerable/EnumerableCollect.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableCollect</a></code>, <code><a href="../adapter/enumerable/EnumerableCorrelate.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableCorrelate</a></code>, <code><a href="../adapter/enumerable/EnumerableFilter.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableFilter</a></code>, <code><a href="../adapter/enumerable/EnumerableHashJoin.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableHashJoin</a></code>, <code><a href="../adapter/enumerable/EnumerableInterpretable.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableInterpretable</a></code>, <code><a href="../adapter/enumerable/EnumerableInterpreter.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableInterpreter</a></code>, <code><a href="../adapter/enumerable/EnumerableIntersect.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableIntersect</a></code>, <code><a href="../adapter/enumerable/EnumerableLimit.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableLimit</a></code>, <code><a href="../adapter/enumerable/EnumerableLimitSort.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableLimitSort</a></code>, <code><a href="../adapter/enumerable/EnumerableMatch.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableMatch</a></code>, <code><a href="../adapter/enumerable/EnumerableMergeJoin.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableMergeJoin</a></code>, <code><a href="../adapter/enumerable/EnumerableMergeUnion.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableMergeUnion</a></code>, <code><a href="../adapter/enumerable/EnumerableMinus.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableMinus</a></code>, <code><a href="../adapter/enumerable/EnumerableNestedLoopJoin.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableNestedLoopJoin</a></code>, <code><a href="../adapter/enumerable/EnumerableProject.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableProject</a></code>, <code><a href="../adapter/enumerable/EnumerableRepeatUnion.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableRepeatUnion</a></code>, <code><a href="../adapter/enumerable/EnumerableSort.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableSort</a></code>, <code><a href="../adapter/enumerable/EnumerableSortedAggregate.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableSortedAggregate</a></code>, <code><a href="../adapter/enumerable/EnumerableTableFunctionScan.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableTableFunctionScan</a></code>, <code><a href="../adapter/enumerable/EnumerableTableModify.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableTableModify</a></code>, <code><a href="../adapter/enumerable/EnumerableTableScan.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableTableScan</a></code>, <code><a href="../adapter/enumerable/EnumerableTableSpool.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableTableSpool</a></code>, <code><a href="../adapter/spark/EnumerableToSparkConverter.html" title="class in org.apache.calcite.adapter.spark">EnumerableToSparkConverter</a></code>, <code><a href="../adapter/enumerable/EnumerableUncollect.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableUncollect</a></code>, <code><a href="../adapter/enumerable/EnumerableUnion.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableUnion</a></code>, <code><a href="../adapter/enumerable/EnumerableValues.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableValues</a></code>, <code><a href="../adapter/enumerable/EnumerableWindow.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableWindow</a></code>, <code><a href="core/EquiJoin.html" title="class in org.apache.calcite.rel.core">EquiJoin</a></code>, <code><a href="rules/EquiJoin.html" title="class in org.apache.calcite.rel.rules">EquiJoin</a></code>, <code><a href="core/Exchange.html" title="class in org.apache.calcite.rel.core">Exchange</a></code>, <code><a href="core/Filter.html" title="class in org.apache.calcite.rel.core">Filter</a></code>, <code><a href="../adapter/geode/rel/GeodeAggregate.html" title="class in org.apache.calcite.adapter.geode.rel">GeodeAggregate</a></code>, <code><a href="../adapter/geode/rel/GeodeFilter.html" title="class in org.apache.calcite.adapter.geode.rel">GeodeFilter</a></code>, <code><a href="../adapter/geode/rel/GeodeProject.html" title="class in org.apache.calcite.adapter.geode.rel">GeodeProject</a></code>, <code><a href="../adapter/geode/rel/GeodeSort.html" title="class in org.apache.calcite.adapter.geode.rel">GeodeSort</a></code>, <code><a href="../adapter/geode/rel/GeodeTableScan.html" title="class in org.apache.calcite.adapter.geode.rel">GeodeTableScan</a></code>, <code><a href="../adapter/geode/rel/GeodeToEnumerableConverter.html" title="class in org.apache.calcite.adapter.geode.rel">GeodeToEnumerableConverter</a></code>, <code><a href="../plan/hep/HepRelVertex.html" title="class in org.apache.calcite.plan.hep">HepRelVertex</a></code>, <code><a href="../adapter/innodb/InnodbFilter.html" title="class in org.apache.calcite.adapter.innodb">InnodbFilter</a></code>, <code><a href="../adapter/innodb/InnodbProject.html" title="class in org.apache.calcite.adapter.innodb">InnodbProject</a></code>, <code><a href="../adapter/innodb/InnodbSort.html" title="class in org.apache.calcite.adapter.innodb">InnodbSort</a></code>, <code><a href="../adapter/innodb/InnodbTableScan.html" title="class in org.apache.calcite.adapter.innodb">InnodbTableScan</a></code>, <code><a href="../adapter/innodb/InnodbToEnumerableConverter.html" title="class in org.apache.calcite.adapter.innodb">InnodbToEnumerableConverter</a></code>, <code><a href="../interpreter/InterpretableConverter.html" title="class in org.apache.calcite.interpreter">InterpretableConverter</a></code>, <code><a href="core/Intersect.html" title="class in org.apache.calcite.rel.core">Intersect</a></code>, <code><a href="../adapter/jdbc/JdbcRules.JdbcAggregate.html" title="class in org.apache.calcite.adapter.jdbc">JdbcRules.JdbcAggregate</a></code>, <code><a href="../adapter/jdbc/JdbcRules.JdbcCalc.html" title="class in org.apache.calcite.adapter.jdbc">JdbcRules.JdbcCalc</a></code>, <code><a href="../adapter/jdbc/JdbcRules.JdbcFilter.html" title="class in org.apache.calcite.adapter.jdbc">JdbcRules.JdbcFilter</a></code>, <code><a href="../adapter/jdbc/JdbcRules.JdbcIntersect.html" title="class in org.apache.calcite.adapter.jdbc">JdbcRules.JdbcIntersect</a></code>, <code><a href="../adapter/jdbc/JdbcRules.JdbcJoin.html" title="class in org.apache.calcite.adapter.jdbc">JdbcRules.JdbcJoin</a></code>, <code><a href="../adapter/jdbc/JdbcRules.JdbcMinus.html" title="class in org.apache.calcite.adapter.jdbc">JdbcRules.JdbcMinus</a></code>, <code><a href="../adapter/jdbc/JdbcRules.JdbcProject.html" title="class in org.apache.calcite.adapter.jdbc">JdbcRules.JdbcProject</a></code>, <code><a href="../adapter/jdbc/JdbcRules.JdbcSort.html" title="class in org.apache.calcite.adapter.jdbc">JdbcRules.JdbcSort</a></code>, <code><a href="../adapter/jdbc/JdbcRules.JdbcTableModify.html" title="class in org.apache.calcite.adapter.jdbc">JdbcRules.JdbcTableModify</a></code>, <code><a href="../adapter/jdbc/JdbcRules.JdbcUnion.html" title="class in org.apache.calcite.adapter.jdbc">JdbcRules.JdbcUnion</a></code>, <code><a href="../adapter/jdbc/JdbcRules.JdbcValues.html" title="class in org.apache.calcite.adapter.jdbc">JdbcRules.JdbcValues</a></code>, <code><a href="../adapter/jdbc/JdbcTableScan.html" title="class in org.apache.calcite.adapter.jdbc">JdbcTableScan</a></code>, <code><a href="../adapter/jdbc/JdbcToEnumerableConverter.html" title="class in org.apache.calcite.adapter.jdbc">JdbcToEnumerableConverter</a></code>, <code><a href="../adapter/spark/JdbcToSparkConverter.html" title="class in org.apache.calcite.adapter.spark">JdbcToSparkConverter</a></code>, <code><a href="core/Join.html" title="class in org.apache.calcite.rel.core">Join</a></code>, <code><a href="logical/LogicalAggregate.html" title="class in org.apache.calcite.rel.logical">LogicalAggregate</a></code>, <code><a href="logical/LogicalCalc.html" title="class in org.apache.calcite.rel.logical">LogicalCalc</a></code>, <code><a href="stream/LogicalChi.html" title="class in org.apache.calcite.rel.stream">LogicalChi</a></code>, <code><a href="logical/LogicalCorrelate.html" title="class in org.apache.calcite.rel.logical">LogicalCorrelate</a></code>, <code><a href="stream/LogicalDelta.html" title="class in org.apache.calcite.rel.stream">LogicalDelta</a></code>, <code><a href="logical/LogicalExchange.html" title="class in org.apache.calcite.rel.logical">LogicalExchange</a></code>, <code><a href="logical/LogicalFilter.html" title="class in org.apache.calcite.rel.logical">LogicalFilter</a></code>, <code><a href="logical/LogicalIntersect.html" title="class in org.apache.calcite.rel.logical">LogicalIntersect</a></code>, <code><a href="logical/LogicalJoin.html" title="class in org.apache.calcite.rel.logical">LogicalJoin</a></code>, <code><a href="logical/LogicalMatch.html" title="class in org.apache.calcite.rel.logical">LogicalMatch</a></code>, <code><a href="logical/LogicalMinus.html" title="class in org.apache.calcite.rel.logical">LogicalMinus</a></code>, <code><a href="logical/LogicalProject.html" title="class in org.apache.calcite.rel.logical">LogicalProject</a></code>, <code><a href="logical/LogicalRepeatUnion.html" title="class in org.apache.calcite.rel.logical">LogicalRepeatUnion</a></code>, <code><a href="logical/LogicalSnapshot.html" title="class in org.apache.calcite.rel.logical">LogicalSnapshot</a></code>, <code><a href="logical/LogicalSort.html" title="class in org.apache.calcite.rel.logical">LogicalSort</a></code>, <code><a href="logical/LogicalSortExchange.html" title="class in org.apache.calcite.rel.logical">LogicalSortExchange</a></code>, <code><a href="logical/LogicalTableFunctionScan.html" title="class in org.apache.calcite.rel.logical">LogicalTableFunctionScan</a></code>, <code><a href="logical/LogicalTableModify.html" title="class in org.apache.calcite.rel.logical">LogicalTableModify</a></code>, <code><a href="logical/LogicalTableScan.html" title="class in org.apache.calcite.rel.logical">LogicalTableScan</a></code>, <code><a href="logical/LogicalTableSpool.html" title="class in org.apache.calcite.rel.logical">LogicalTableSpool</a></code>, <code><a href="logical/LogicalUnion.html" title="class in org.apache.calcite.rel.logical">LogicalUnion</a></code>, <code><a href="logical/LogicalValues.html" title="class in org.apache.calcite.rel.logical">LogicalValues</a></code>, <code><a href="logical/LogicalWindow.html" title="class in org.apache.calcite.rel.logical">LogicalWindow</a></code>, <code><a href="core/Match.html" title="class in org.apache.calcite.rel.core">Match</a></code>, <code><a href="core/Minus.html" title="class in org.apache.calcite.rel.core">Minus</a></code>, <code><a href="../adapter/mongodb/MongoAggregate.html" title="class in org.apache.calcite.adapter.mongodb">MongoAggregate</a></code>, <code><a href="../adapter/mongodb/MongoFilter.html" title="class in org.apache.calcite.adapter.mongodb">MongoFilter</a></code>, <code><a href="../adapter/mongodb/MongoProject.html" title="class in org.apache.calcite.adapter.mongodb">MongoProject</a></code>, <code><a href="../adapter/mongodb/MongoSort.html" title="class in org.apache.calcite.adapter.mongodb">MongoSort</a></code>, <code><a href="../adapter/mongodb/MongoTableScan.html" title="class in org.apache.calcite.adapter.mongodb">MongoTableScan</a></code>, <code><a href="../adapter/mongodb/MongoToEnumerableConverter.html" title="class in org.apache.calcite.adapter.mongodb">MongoToEnumerableConverter</a></code>, <code><a href="rules/MultiJoin.html" title="class in org.apache.calcite.rel.rules">MultiJoin</a></code>, <code><a href="convert/NoneConverter.html" title="class in org.apache.calcite.rel.convert">NoneConverter</a></code>, <code><a href="../adapter/pig/PigAggregate.html" title="class in org.apache.calcite.adapter.pig">PigAggregate</a></code>, <code><a href="../adapter/pig/PigFilter.html" title="class in org.apache.calcite.adapter.pig">PigFilter</a></code>, <code><a href="../adapter/pig/PigJoin.html" title="class in org.apache.calcite.adapter.pig">PigJoin</a></code>, <code><a href="../adapter/pig/PigProject.html" title="class in org.apache.calcite.adapter.pig">PigProject</a></code>, <code><a href="../adapter/pig/PigTableScan.html" title="class in org.apache.calcite.adapter.pig">PigTableScan</a></code>, <code><a href="../adapter/pig/PigToEnumerableConverter.html" title="class in org.apache.calcite.adapter.pig">PigToEnumerableConverter</a></code>, <code><a href="core/Project.html" title="class in org.apache.calcite.rel.core">Project</a></code>, <code><a href="../plan/volcano/RelSubset.html" title="class in org.apache.calcite.plan.volcano">RelSubset</a></code>, <code><a href="core/RepeatUnion.html" title="class in org.apache.calcite.rel.core">RepeatUnion</a></code>, <code><a href="core/Sample.html" title="class in org.apache.calcite.rel.core">Sample</a></code>, <code><a href="core/SetOp.html" title="class in org.apache.calcite.rel.core">SetOp</a></code>, <code><a href="SingleRel.html" title="class in org.apache.calcite.rel">SingleRel</a></code>, <code><a href="core/Snapshot.html" title="class in org.apache.calcite.rel.core">Snapshot</a></code>, <code><a href="core/Sort.html" title="class in org.apache.calcite.rel.core">Sort</a></code>, <code><a href="core/SortExchange.html" title="class in org.apache.calcite.rel.core">SortExchange</a></code>, <code><a href="../adapter/spark/SparkRules.SparkCalc.html" title="class in org.apache.calcite.adapter.spark">SparkRules.SparkCalc</a></code>, <code><a href="../adapter/spark/SparkRules.SparkValues.html" title="class in org.apache.calcite.adapter.spark">SparkRules.SparkValues</a></code>, <code><a href="../adapter/spark/SparkToEnumerableConverter.html" title="class in org.apache.calcite.adapter.spark">SparkToEnumerableConverter</a></code>, <code><a href="../adapter/splunk/SplunkTableScan.html" title="class in org.apache.calcite.adapter.splunk">SplunkTableScan</a></code>, <code><a href="core/Spool.html" title="class in org.apache.calcite.rel.core">Spool</a></code>, <code><a href="../test/SqlToRelTestBase.CustomCorrelate.html" title="class in org.apache.calcite.test">SqlToRelTestBase.CustomCorrelate</a></code>, <code><a href="../schema/impl/StarTable.StarTableScan.html" title="class in org.apache.calcite.schema.impl">StarTable.StarTableScan</a></code>, <code><a href="core/TableFunctionScan.html" title="class in org.apache.calcite.rel.core">TableFunctionScan</a></code>, <code><a href="core/TableModify.html" title="class in org.apache.calcite.rel.core">TableModify</a></code>, <code><a href="core/TableScan.html" title="class in org.apache.calcite.rel.core">TableScan</a></code>, <code><a href="core/TableSpool.html" title="class in org.apache.calcite.rel.core">TableSpool</a></code>, <code><a href="core/Uncollect.html" title="class in org.apache.calcite.rel.core">Uncollect</a></code>, <code><a href="core/Union.html" title="class in org.apache.calcite.rel.core">Union</a></code>, <code><a href="core/Values.html" title="class in org.apache.calcite.rel.core">Values</a></code>, <code><a href="core/Window.html" title="class in org.apache.calcite.rel.core">Window</a></code></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">RelNode</span><span class="extends-implements"> |
| extends <a href="../plan/RelOptNode.html" title="interface in org.apache.calcite.plan">RelOptNode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Cloneable.html" title="class or interface in java.lang" class="external-link">Cloneable</a></span></div> |
| <div class="block">A <code>RelNode</code> is a relational expression. |
| |
| <p>Relational expressions process data, so their names are typically verbs: |
| Sort, Join, Project, Filter, Scan, Sample. |
| |
| <p>A relational expression is not a scalar expression; see |
| <a href="../sql/SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a> and <a href="../rex/RexNode.html" title="class in org.apache.calcite.rex"><code>RexNode</code></a>.</p> |
| |
| <p>If this type of relational expression has some particular planner rules, |
| it should implement the <em>public static</em> method |
| <a href="AbstractRelNode.html#register(org.apache.calcite.plan.RelOptPlanner)"><code>AbstractRelNode.register(org.apache.calcite.plan.RelOptPlanner)</code></a>.</p> |
| |
| <p>When a relational expression comes to be implemented, the system allocates |
| a <a href="../plan/RelImplementor.html" title="interface in org.apache.calcite.plan"><code>RelImplementor</code></a> to manage the process. Every |
| implementable relational expression has a <a href="../plan/RelTraitSet.html" title="class in org.apache.calcite.plan"><code>RelTraitSet</code></a> describing its |
| physical attributes. The RelTraitSet always contains a <a href="../plan/Convention.html" title="interface in org.apache.calcite.plan"><code>Convention</code></a> |
| describing how the expression passes data to its consuming |
| relational expression, but may contain other traits, including some applied |
| externally. Because traits can be applied externally, implementations of |
| RelNode should never assume the size or contents of their trait set (beyond |
| those traits configured by the RelNode itself).</p> |
| |
| <p>For each calling-convention, there is a corresponding sub-interface of |
| RelNode. For example, |
| <code>org.apache.calcite.adapter.enumerable.EnumerableRel</code> |
| has operations to manage the conversion to a graph of |
| <code>org.apache.calcite.adapter.enumerable.EnumerableConvention</code> |
| calling-convention, and it interacts with a |
| <code>EnumerableRelImplementor</code>.</p> |
| |
| <p>A relational expression is only required to implement its |
| calling-convention's interface when it is actually implemented, that is, |
| converted into a plan/program. This means that relational expressions which |
| cannot be implemented, such as converters, are not required to implement |
| their convention's interface.</p> |
| |
| <p>Every relational expression must derive from <a href="AbstractRelNode.html" title="class in org.apache.calcite.rel"><code>AbstractRelNode</code></a>. (Why |
| have the <code>RelNode</code> interface, then? We need a root interface, |
| because an interface can only derive from an interface.)</p></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">Interface</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="RelNode.Context.html" class="type-name-link" title="interface in org.apache.calcite.rel">RelNode.Context</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Context of a relational expression, for purposes of checking validity.</div> |
| </div> |
| </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-tab5" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab5', 3)" class="table-tab">Default Methods</button><button id="method-summary-table-tab6" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab6', 3)" class="table-tab">Deprecated 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-tab3"><code><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="#accept(org.apache.calcite.rel.RelShuttle)" class="member-name-link">accept</a><wbr>(<a href="RelShuttle.html" title="interface in org.apache.calcite.rel">RelShuttle</a> shuttle)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Accepts a visit from a shuttle.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><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="#accept(org.apache.calcite.rex.RexShuttle)" class="member-name-link">accept</a><wbr>(<a href="../rex/RexShuttle.html" title="class in org.apache.calcite.rex">RexShuttle</a> shuttle)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Accepts a visit from a shuttle.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#childrenAccept(org.apache.calcite.rel.RelVisitor)" class="member-name-link">childrenAccept</a><wbr>(<a href="RelVisitor.html" title="class in org.apache.calcite.rel">RelVisitor</a> visitor)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Interacts with the <a href="RelVisitor.html" title="class in org.apache.calcite.rel"><code>RelVisitor</code></a> in a |
| <a href="../util/Glossary.html#VISITOR_PATTERN"><code>visitor pattern</code></a> to |
| traverse the tree of relational expressions.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#collectVariablesSet(java.util.Set)" class="member-name-link">collectVariablesSet</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="core/CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a>> variableSet)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Collects variables set by this expression.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#collectVariablesUsed(java.util.Set)" class="member-name-link">collectVariablesUsed</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="core/CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a>> variableSet)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Collects variables known to be used by this expression or its |
| descendants.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>@Nullable <a href="../plan/RelOptCost.html" title="interface in org.apache.calcite.plan">RelOptCost</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)" class="member-name-link">computeSelfCost</a><wbr>(<a href="../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a> planner, |
| <a href="metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Returns the cost of this plan (not including children).</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><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="#copy(org.apache.calcite.plan.RelTraitSet,java.util.List)" class="member-name-link">copy</a><wbr>(<a href="../plan/RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a> traitSet, |
| <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="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>> inputs)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Creates a copy of this relational expression, perhaps changing traits and |
| inputs.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>boolean</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#deepEquals(java.lang.Object)" class="member-name-link">deepEquals</a><wbr>(@Nullable <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> obj)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Deep equality check for RelNode digest.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>int</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#deepHashCode()" class="member-name-link">deepHashCode</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Compute deep hash code for RelNode digest.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>double</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)" class="member-name-link">estimateRowCount</a><wbr>(<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-tab3"> |
| <div class="block">Returns an estimate of the number of rows this relational expression will |
| return.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code>default <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code><a href="#explain()" class="member-name-link">explain</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"> |
| <div class="block">Returns a relational expression string of this <code>RelNode</code>.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#explain(org.apache.calcite.rel.RelWriter)" class="member-name-link">explain</a><wbr>(<a href="RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a> pw)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Describes the inputs and attributes of this relational expression.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code>default boolean</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code><a href="#fieldIsNullable(int)" class="member-name-link">fieldIsNullable</a><wbr>(int i)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"> |
| <div class="block">Returns whether a field is nullable.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>@Nullable <a href="../plan/Convention.html" title="interface in org.apache.calcite.plan">Convention</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getConvention()" class="member-name-link">getConvention</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Return the CallingConvention trait from this RelNode's |
| <a href="../plan/RelOptNode.html#getTraitSet()"><code>trait set</code></a>.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getCorrelVariable()" class="member-name-link">getCorrelVariable</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Returns the name of the variable which is to be implicitly set at runtime |
| each time a row is returned from the first input of this relational |
| expression; or null if there is no variable.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code>default <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code><a href="#getDigest()" class="member-name-link">getDigest</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"> |
| <div class="block">Returns a digest string of this <code>RelNode</code>.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getExpectedInputRowType(int)" class="member-name-link">getExpectedInputRowType</a><wbr>(int ordinalInParent)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Returns the type of the rows expected for an input.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><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="#getInput(int)" class="member-name-link">getInput</a><wbr>(int i)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Returns the <code>i</code><sup>th</sup> input relational expression.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><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="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="#getInputs()" class="member-name-link">getInputs</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Returns an array of this relational expression's inputs.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="../plan/RelDigest.html" title="interface in org.apache.calcite.plan">RelDigest</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getRelDigest()" class="member-name-link">getRelDigest</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Returns a digest of this <code>RelNode</code>.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getRelTypeName()" class="member-name-link">getRelTypeName</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Returns the name of this relational expression's class, sans package |
| name, for use in explain.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getRowType()" class="member-name-link">getRowType</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Returns the type of the rows returned by this relational expression.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>@Nullable <a href="../plan/RelOptTable.html" title="interface in org.apache.calcite.plan">RelOptTable</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getTable()" class="member-name-link">getTable</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">If this relational expression represents an access to a table, returns |
| that table, otherwise returns null.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><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="core/CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a>></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getVariablesSet()" class="member-name-link">getVariablesSet</a>()</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Returns the variables that are set in this relational |
| expression but also used and therefore not available to parents of this |
| relational expression.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code>default boolean</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"><code><a href="#isEnforcer()" class="member-name-link">isEnforcer</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab5"> |
| <div class="block">Indicates whether it is an enforcer operator, e.g.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>boolean</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#isValid(org.apache.calcite.util.Litmus,org.apache.calcite.rel.RelNode.Context)" class="member-name-link">isValid</a><wbr>(<a href="../util/Litmus.html" title="interface in org.apache.calcite.util">Litmus</a> litmus, |
| @Nullable <a href="RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a> context)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Returns whether this relational expression is valid.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3 method-summary-table-tab6"><code><@Nullable M extends @Nullable <a href="metadata/Metadata.html" title="interface in org.apache.calcite.rel.metadata">Metadata</a>><br>M</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3 method-summary-table-tab6"><code><a href="#metadata(java.lang.Class,org.apache.calcite.rel.metadata.RelMetadataQuery)" class="member-name-link">metadata</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><@Nullable M> metadataClass, |
| <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 method-summary-table-tab6"> |
| <div class="block"><span class="deprecated-label">Deprecated.</span> |
| <div class="deprecation-comment">Use <a href="metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata"><code>RelMetadataQuery</code></a> via <a href="../plan/RelOptNode.html#getCluster()"><code>RelOptNode.getCluster()</code></a>.</div> |
| </div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><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="#onRegister(org.apache.calcite.plan.RelOptPlanner)" class="member-name-link">onRegister</a><wbr>(<a href="../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a> planner)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Receives notification that this expression is about to be registered.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#recomputeDigest()" class="member-name-link">recomputeDigest</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Recomputes the digest.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#register(org.apache.calcite.plan.RelOptPlanner)" class="member-name-link">register</a><wbr>(<a href="../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a> planner)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Registers any special rules specific to this kind of relational |
| expression.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#replaceInput(int,org.apache.calcite.rel.RelNode)" class="member-name-link">replaceInput</a><wbr>(int ordinalInParent, |
| <a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> p)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"> |
| <div class="block">Replaces the <code>ordinalInParent</code><sup>th</sup> input.</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-org.apache.calcite.plan.RelOptNode">Methods inherited from interface org.apache.calcite.plan.<a href="../plan/RelOptNode.html" title="interface in org.apache.calcite.plan">RelOptNode</a></h3> |
| <code><a href="../plan/RelOptNode.html#getCluster()">getCluster</a>, <a href="../plan/RelOptNode.html#getDescription()">getDescription</a>, <a href="../plan/RelOptNode.html#getId()">getId</a>, <a href="../plan/RelOptNode.html#getTraitSet()">getTraitSet</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="getConvention()"> |
| <h3>getConvention</h3> |
| <div class="member-signature"><span class="annotations">@Pure |
| </span><span class="return-type">@Nullable <a href="../plan/Convention.html" title="interface in org.apache.calcite.plan">Convention</a></span> <span class="element-name">getConvention</span>()</div> |
| <div class="block">Return the CallingConvention trait from this RelNode's |
| <a href="../plan/RelOptNode.html#getTraitSet()"><code>trait set</code></a>.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>this RelNode's CallingConvention</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getCorrelVariable()"> |
| <h3>getCorrelVariable</h3> |
| <div class="member-signature"><span class="return-type">@Nullable <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">getCorrelVariable</span>()</div> |
| <div class="block">Returns the name of the variable which is to be implicitly set at runtime |
| each time a row is returned from the first input of this relational |
| expression; or null if there is no variable.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Name of correlating variable, or null</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getInput(int)"> |
| <h3>getInput</h3> |
| <div class="member-signature"><span class="return-type"><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></span> <span class="element-name">getInput</span><wbr><span class="parameters">(int i)</span></div> |
| <div class="block">Returns the <code>i</code><sup>th</sup> input relational expression.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>i</code> - Ordinal of input</dd> |
| <dt>Returns:</dt> |
| <dd><code>i</code><sup>th</sup> input</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getRowType()"> |
| <h3>getRowType</h3> |
| <div class="member-signature"><span class="return-type"><a href="type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></span> <span class="element-name">getRowType</span>()</div> |
| <div class="block">Returns the type of the rows returned by this relational expression.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../plan/RelOptNode.html#getRowType()">getRowType</a></code> in interface <code><a href="../plan/RelOptNode.html" title="interface in org.apache.calcite.plan">RelOptNode</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getExpectedInputRowType(int)"> |
| <h3>getExpectedInputRowType</h3> |
| <div class="member-signature"><span class="return-type"><a href="type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></span> <span class="element-name">getExpectedInputRowType</span><wbr><span class="parameters">(int ordinalInParent)</span></div> |
| <div class="block">Returns the type of the rows expected for an input. Defaults to |
| <a href="#getRowType()"><code>getRowType()</code></a>.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>ordinalInParent</code> - input's 0-based ordinal with respect to this |
| parent rel</dd> |
| <dt>Returns:</dt> |
| <dd>expected row type</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getInputs()"> |
| <h3>getInputs</h3> |
| <div class="member-signature"><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="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>></span> <span class="element-name">getInputs</span>()</div> |
| <div class="block">Returns an array of this relational expression's inputs. If there are no |
| inputs, returns an empty list, not <code>null</code>.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../plan/RelOptNode.html#getInputs()">getInputs</a></code> in interface <code><a href="../plan/RelOptNode.html" title="interface in org.apache.calcite.plan">RelOptNode</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>Array of this relational expression's inputs</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)"> |
| <h3>estimateRowCount</h3> |
| <div class="member-signature"><span class="return-type">double</span> <span class="element-name">estimateRowCount</span><wbr><span class="parameters">(<a href="metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</span></div> |
| <div class="block">Returns an estimate of the number of rows this relational expression will |
| return. |
| |
| <p>NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use |
| <a href="metadata/RelMetadataQuery.html#getRowCount(org.apache.calcite.rel.RelNode)"><code>RelMetadataQuery.getRowCount(org.apache.calcite.rel.RelNode)</code></a>, which gives plugins a chance to |
| override the rel's default ideas about row count.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>mq</code> - Metadata query</dd> |
| <dt>Returns:</dt> |
| <dd>Estimate of the number of rows this relational expression will |
| return</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getVariablesSet()"> |
| <h3>getVariablesSet</h3> |
| <div class="member-signature"><span class="return-type"><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="core/CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a>></span> <span class="element-name">getVariablesSet</span>()</div> |
| <div class="block">Returns the variables that are set in this relational |
| expression but also used and therefore not available to parents of this |
| relational expression.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Names of variables which are set in this relational |
| expression</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="collectVariablesUsed(java.util.Set)"> |
| <h3>collectVariablesUsed</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name">collectVariablesUsed</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="core/CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a>> variableSet)</span></div> |
| <div class="block">Collects variables known to be used by this expression or its |
| descendants. By default, no such information is available and must be |
| derived by analyzing sub-expressions, but some optimizer implementations |
| may insert special expressions which remember such information.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>variableSet</code> - receives variables used</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="collectVariablesSet(java.util.Set)"> |
| <h3>collectVariablesSet</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name">collectVariablesSet</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="core/CorrelationId.html" title="class in org.apache.calcite.rel.core">CorrelationId</a>> variableSet)</span></div> |
| <div class="block">Collects variables set by this expression. |
| TODO: is this required?</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>variableSet</code> - receives variables known to be set by</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="childrenAccept(org.apache.calcite.rel.RelVisitor)"> |
| <h3>childrenAccept</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name">childrenAccept</span><wbr><span class="parameters">(<a href="RelVisitor.html" title="class in org.apache.calcite.rel">RelVisitor</a> visitor)</span></div> |
| <div class="block">Interacts with the <a href="RelVisitor.html" title="class in org.apache.calcite.rel"><code>RelVisitor</code></a> in a |
| <a href="../util/Glossary.html#VISITOR_PATTERN"><code>visitor pattern</code></a> to |
| traverse the tree of relational expressions.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>visitor</code> - Visitor that will traverse the tree of relational |
| expressions</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)"> |
| <h3>computeSelfCost</h3> |
| <div class="member-signature"><span class="return-type">@Nullable <a href="../plan/RelOptCost.html" title="interface in org.apache.calcite.plan">RelOptCost</a></span> <span class="element-name">computeSelfCost</span><wbr><span class="parameters">(<a href="../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a> planner, |
| <a href="metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</span></div> |
| <div class="block">Returns the cost of this plan (not including children). The base |
| implementation throws an error; derived classes should override. |
| |
| <p>NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use |
| <a href="metadata/RelMetadataQuery.html#getNonCumulativeCost(org.apache.calcite.rel.RelNode)"><code>RelMetadataQuery.getNonCumulativeCost(org.apache.calcite.rel.RelNode)</code></a>, which gives plugins a |
| chance to override the rel's default ideas about cost.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>planner</code> - Planner for cost calculation</dd> |
| <dd><code>mq</code> - Metadata query</dd> |
| <dt>Returns:</dt> |
| <dd>Cost of this plan (not including children)</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="metadata(java.lang.Class,org.apache.calcite.rel.metadata.RelMetadataQuery)"> |
| <h3>metadata</h3> |
| <div class="member-signature"><span class="annotations"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Deprecated.html" title="class or interface in java.lang" class="external-link">@Deprecated</a> |
| </span><span class="type-parameters"><@Nullable M extends @Nullable <a href="metadata/Metadata.html" title="interface in org.apache.calcite.rel.metadata">Metadata</a>></span> <span class="return-type">M</span> <span class="element-name">metadata</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><@Nullable M> metadataClass, |
| <a href="metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</span></div> |
| <div class="deprecation-block"><span class="deprecated-label">Deprecated.</span> |
| <div class="deprecation-comment">Use <a href="metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata"><code>RelMetadataQuery</code></a> via <a href="../plan/RelOptNode.html#getCluster()"><code>RelOptNode.getCluster()</code></a>.</div> |
| </div> |
| <div class="block">Returns a metadata interface.</div> |
| <dl class="notes"> |
| <dt>Type Parameters:</dt> |
| <dd><code>M</code> - Type of metadata being requested</dd> |
| <dt>Parameters:</dt> |
| <dd><code>metadataClass</code> - Metadata interface</dd> |
| <dd><code>mq</code> - Metadata query</dd> |
| <dt>Returns:</dt> |
| <dd>Metadata object that supplies the desired metadata (never null, |
| although if the information is not present the metadata object may |
| return null from all methods)</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="explain(org.apache.calcite.rel.RelWriter)"> |
| <h3>explain</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name">explain</span><wbr><span class="parameters">(<a href="RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a> pw)</span></div> |
| <div class="block">Describes the inputs and attributes of this relational expression. |
| Each node should call <code>super.explain</code>, then call the |
| <a href="RelWriter.html#input(java.lang.String,org.apache.calcite.rel.RelNode)"><code>RelWriter.input(String, RelNode)</code></a> |
| and |
| <a href="RelWriter.html#item(java.lang.String,java.lang.Object)"><code>RelWriter.item(String, Object)</code></a> |
| methods for each input and attribute.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>pw</code> - Plan writer</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="explain()"> |
| <h3>explain</h3> |
| <div class="member-signature"><span class="modifiers">default</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">explain</span>()</div> |
| <div class="block">Returns a relational expression string of this <code>RelNode</code>. |
| The string returned is the same as |
| <a href="../plan/RelOptUtil.html#toString(org.apache.calcite.rel.RelNode)"><code>RelOptUtil.toString(org.apache.calcite.rel.RelNode)</code></a>. |
| |
| This method is intended mainly for use while debugging in an IDE, |
| as a convenient short-hand for RelOptUtil.toString. |
| We recommend that classes implementing this interface |
| do not override this method.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Relational expression string of this <code>RelNode</code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="onRegister(org.apache.calcite.plan.RelOptPlanner)"> |
| <h3>onRegister</h3> |
| <div class="member-signature"><span class="return-type"><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></span> <span class="element-name">onRegister</span><wbr><span class="parameters">(<a href="../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a> planner)</span></div> |
| <div class="block">Receives notification that this expression is about to be registered. The |
| implementation of this method must at least register all child |
| expressions.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>planner</code> - Planner that plans this relational node</dd> |
| <dt>Returns:</dt> |
| <dd>Relational expression that should be used by the planner</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getDigest()"> |
| <h3>getDigest</h3> |
| <div class="member-signature"><span class="modifiers">default</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">getDigest</span>()</div> |
| <div class="block">Returns a digest string of this <code>RelNode</code>. |
| |
| <p>Each call creates a new digest string, |
| so don't forget to cache the result if necessary.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../plan/RelOptNode.html#getDigest()">getDigest</a></code> in interface <code><a href="../plan/RelOptNode.html" title="interface in org.apache.calcite.plan">RelOptNode</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>Digest string of this <code>RelNode</code></dd> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="#getRelDigest()"><code>getRelDigest()</code></a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getRelDigest()"> |
| <h3>getRelDigest</h3> |
| <div class="member-signature"><span class="annotations">@API(since="1.24", |
| status=INTERNAL) |
| </span><span class="return-type"><a href="../plan/RelDigest.html" title="interface in org.apache.calcite.plan">RelDigest</a></span> <span class="element-name">getRelDigest</span>()</div> |
| <div class="block">Returns a digest of this <code>RelNode</code>. |
| |
| <p>INTERNAL USE ONLY. For use by the planner.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Digest of this <code>RelNode</code></dd> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="#getDigest()"><code>getDigest()</code></a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="recomputeDigest()"> |
| <h3>recomputeDigest</h3> |
| <div class="member-signature"><span class="annotations">@API(since="1.24", |
| status=INTERNAL) |
| </span><span class="return-type">void</span> <span class="element-name">recomputeDigest</span>()</div> |
| <div class="block">Recomputes the digest. |
| |
| <p>INTERNAL USE ONLY. For use by the planner.</div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="#getDigest()"><code>getDigest()</code></a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="deepEquals(java.lang.Object)"> |
| <h3>deepEquals</h3> |
| <div class="member-signature"><span class="annotations">@EnsuresNonNullIf(expression="#1", |
| result=true) |
| </span><span class="return-type">boolean</span> <span class="element-name">deepEquals</span><wbr><span class="parameters">(@Nullable <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> obj)</span></div> |
| <div class="block">Deep equality check for RelNode digest. |
| |
| <p>By default this method collects digest attributes from |
| explain terms, then compares each attribute pair.</p></div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Whether the 2 RelNodes are equivalent or have the same digest.</dd> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="#deepHashCode()"><code>deepHashCode()</code></a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="deepHashCode()"> |
| <h3>deepHashCode</h3> |
| <div class="member-signature"><span class="return-type">int</span> <span class="element-name">deepHashCode</span>()</div> |
| <div class="block">Compute deep hash code for RelNode digest.</div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="#deepEquals(java.lang.Object)"><code>deepEquals(Object)</code></a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="replaceInput(int,org.apache.calcite.rel.RelNode)"> |
| <h3>replaceInput</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name">replaceInput</span><wbr><span class="parameters">(int ordinalInParent, |
| <a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> p)</span></div> |
| <div class="block">Replaces the <code>ordinalInParent</code><sup>th</sup> input. You must |
| override this method if you override <a href="#getInputs()"><code>getInputs()</code></a>.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>ordinalInParent</code> - Position of the child input, 0 is the first</dd> |
| <dd><code>p</code> - New node that should be put at position <code>ordinalInParent</code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getTable()"> |
| <h3>getTable</h3> |
| <div class="member-signature"><span class="return-type">@Nullable <a href="../plan/RelOptTable.html" title="interface in org.apache.calcite.plan">RelOptTable</a></span> <span class="element-name">getTable</span>()</div> |
| <div class="block">If this relational expression represents an access to a table, returns |
| that table, otherwise returns null.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>If this relational expression represents an access to a table, |
| returns that table, otherwise returns null</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getRelTypeName()"> |
| <h3>getRelTypeName</h3> |
| <div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">getRelTypeName</span>()</div> |
| <div class="block">Returns the name of this relational expression's class, sans package |
| name, for use in explain. For example, for a <code> |
| org.apache.calcite.rel.ArrayRel.ArrayReader</code>, this method returns |
| "ArrayReader".</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Name of this relational expression's class, sans package name, |
| for use in explain</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="isValid(org.apache.calcite.util.Litmus,org.apache.calcite.rel.RelNode.Context)"> |
| <h3>isValid</h3> |
| <div class="member-signature"><span class="return-type">boolean</span> <span class="element-name">isValid</span><wbr><span class="parameters">(<a href="../util/Litmus.html" title="interface in org.apache.calcite.util">Litmus</a> litmus, |
| @Nullable <a href="RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a> context)</span></div> |
| <div class="block">Returns whether this relational expression is valid. |
| |
| <p>If assertions are enabled, this method is typically called with <code> |
| litmus</code> = <code>THROW</code>, as follows: |
| |
| <blockquote> |
| <pre>assert rel.isValid(Litmus.THROW)</pre> |
| </blockquote> |
| |
| <p>This signals that the method can throw an <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/AssertionError.html" title="class or interface in java.lang" class="external-link"><code>AssertionError</code></a> if it |
| is not valid.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>litmus</code> - What to do if invalid</dd> |
| <dd><code>context</code> - Context for validity checking</dd> |
| <dt>Returns:</dt> |
| <dd>Whether relational expression is valid</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/AssertionError.html" title="class or interface in java.lang" class="external-link">AssertionError</a></code> - if this relational expression is invalid and |
| litmus is THROW</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="copy(org.apache.calcite.plan.RelTraitSet,java.util.List)"> |
| <h3>copy</h3> |
| <div class="member-signature"><span class="return-type"><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></span> <span class="element-name">copy</span><wbr><span class="parameters">(<a href="../plan/RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a> traitSet, |
| <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="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a>> inputs)</span></div> |
| <div class="block">Creates a copy of this relational expression, perhaps changing traits and |
| inputs. |
| |
| <p>Sub-classes with other important attributes are encouraged to create |
| variants of this method with more parameters.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>traitSet</code> - Trait set</dd> |
| <dd><code>inputs</code> - Inputs</dd> |
| <dt>Returns:</dt> |
| <dd>Copy of this relational expression, substituting traits and |
| inputs</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="register(org.apache.calcite.plan.RelOptPlanner)"> |
| <h3>register</h3> |
| <div class="member-signature"><span class="return-type">void</span> <span class="element-name">register</span><wbr><span class="parameters">(<a href="../plan/RelOptPlanner.html" title="interface in org.apache.calcite.plan">RelOptPlanner</a> planner)</span></div> |
| <div class="block">Registers any special rules specific to this kind of relational |
| expression. |
| |
| <p>The planner calls this method this first time that it sees a |
| relational expression of this class. The derived class should call |
| <a href="../plan/RelOptPlanner.html#addRule(org.apache.calcite.plan.RelOptRule)"><code>RelOptPlanner.addRule(org.apache.calcite.plan.RelOptRule)</code></a> for each rule, and |
| then call <code>super.register</code>.</p></div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>planner</code> - Planner to be used to register additional relational |
| expressions</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="isEnforcer()"> |
| <h3>isEnforcer</h3> |
| <div class="member-signature"><span class="modifiers">default</span> <span class="return-type">boolean</span> <span class="element-name">isEnforcer</span>()</div> |
| <div class="block">Indicates whether it is an enforcer operator, e.g. PhysicalSort, |
| PhysicalHashDistribute, etc. As an enforcer, the operator must be |
| created only when required traitSet is not satisfied by its input.</div> |
| <dl class="notes"> |
| <dt>Returns:</dt> |
| <dd>Whether it is an enforcer operator</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="accept(org.apache.calcite.rel.RelShuttle)"> |
| <h3>accept</h3> |
| <div class="member-signature"><span class="return-type"><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></span> <span class="element-name">accept</span><wbr><span class="parameters">(<a href="RelShuttle.html" title="interface in org.apache.calcite.rel">RelShuttle</a> shuttle)</span></div> |
| <div class="block">Accepts a visit from a shuttle.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>shuttle</code> - Shuttle</dd> |
| <dt>Returns:</dt> |
| <dd>A copy of this node incorporating changes made by the shuttle to |
| this node's children</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="accept(org.apache.calcite.rex.RexShuttle)"> |
| <h3>accept</h3> |
| <div class="member-signature"><span class="return-type"><a href="RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></span> <span class="element-name">accept</span><wbr><span class="parameters">(<a href="../rex/RexShuttle.html" title="class in org.apache.calcite.rex">RexShuttle</a> shuttle)</span></div> |
| <div class="block">Accepts a visit from a shuttle. If the shuttle updates expression, then |
| a copy of the relation should be created. This new relation might have |
| a different row-type.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>shuttle</code> - Shuttle</dd> |
| <dt>Returns:</dt> |
| <dd>A copy of this node incorporating changes made by the shuttle to |
| this node's children</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="fieldIsNullable(int)"> |
| <h3>fieldIsNullable</h3> |
| <div class="member-signature"><span class="modifiers">default</span> <span class="return-type">boolean</span> <span class="element-name">fieldIsNullable</span><wbr><span class="parameters">(int i)</span></div> |
| <div class="block">Returns whether a field is nullable.</div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </section> |
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