Package org.apache.calcite.rel.rules
Class SemiJoinFilterTransposeRule
java.lang.Object
org.apache.calcite.plan.RelOptRule
org.apache.calcite.plan.RelRule<SemiJoinFilterTransposeRule.Config>
org.apache.calcite.rel.rules.SemiJoinFilterTransposeRule
- All Implemented Interfaces:
TransformationRule
@Enclosing
public class SemiJoinFilterTransposeRule
extends RelRule<SemiJoinFilterTransposeRule.Config>
implements TransformationRule
Planner rule that pushes
SemiJoin
s down in a tree past
a Filter
.
The intention is to trigger other rules that will convert
SemiJoin
s.
SemiJoin(LogicalFilter(X), Y) → LogicalFilter(SemiJoin(X, Y))
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Nested Class Summary
Modifier and TypeClassDescriptionstatic interface
Rule configuration.Nested classes/interfaces inherited from class org.apache.calcite.plan.RelRule
RelRule.Done, RelRule.MatchHandler<R extends RelOptRule>, RelRule.OperandBuilder, RelRule.OperandDetailBuilder<R extends RelNode>, RelRule.OperandTransform
Nested classes/interfaces inherited from class org.apache.calcite.plan.RelOptRule
RelOptRule.ConverterRelOptRuleOperand
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Field Summary
Fields inherited from class org.apache.calcite.plan.RelOptRule
description, operands, relBuilderFactory
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Constructor Summary
ModifierConstructorDescriptionprotected
Creates a SemiJoinFilterTransposeRule.SemiJoinFilterTransposeRule
(RelBuilderFactory relBuilderFactory) Deprecated. -
Method Summary
Modifier and TypeMethodDescriptionvoid
onMatch
(RelOptRuleCall call) Receives notification about a rule match.Methods inherited from class org.apache.calcite.plan.RelOptRule
any, convert, convert, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, matches, none, operand, operand, operand, operand, operand, operandJ, operandJ, some, toString, unordered
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Constructor Details
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SemiJoinFilterTransposeRule
Creates a SemiJoinFilterTransposeRule. -
SemiJoinFilterTransposeRule
Deprecated.
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Method Details
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onMatch
Description copied from class:RelOptRule
Receives notification about a rule match. At the time that this method is called,call.rels
holds the set of relational expressions which match the operands to the rule;call.rels[0]
is the root expression.Typically a rule would check that the nodes are valid matches, creates a new expression, then calls back
RelOptRuleCall.transformTo(org.apache.calcite.rel.RelNode, java.util.Map<org.apache.calcite.rel.RelNode, org.apache.calcite.rel.RelNode>, org.apache.calcite.plan.RelHintsPropagator)
to register the expression.- Specified by:
onMatch
in classRelOptRule
- Parameters:
call
- Rule call- See Also:
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