org.apache.flink.table.planner.plan.rules.logical

Class FlinkSemiAntiJoinJoinTransposeRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.flink.table.planner.plan.rules.logical.FlinkSemiAntiJoinJoinTransposeRule

public class FlinkSemiAntiJoinJoinTransposeRule
extends org.apache.calcite.plan.RelOptRule

Planner rule that pushes a org.apache.calcite.rel.core.SemiJoin down in a tree past a Join in order to trigger other rules that will convert SemiJoins.

• SemiJoin(LogicalJoin(X, Y), Z) → LogicalJoin(SemiJoin(X, Z), Y)
• SemiJoin(LogicalJoin(X, Y), Z) → LogicalJoin(X, SemiJoin(Y, Z))

Whether this first or second conversion is applied depends on which operands actually participate in the semi-join.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.plan.RelOptRule

org.apache.calcite.plan.RelOptRule.ConverterRelOptRuleOperand

Field Summary

Fields

Modifier and Type	Field and Description
static FlinkSemiAntiJoinJoinTransposeRule	INSTANCE

Fields inherited from class org.apache.calcite.plan.RelOptRule

description, operands, relBuilderFactory

Method Summary

Modifier and Type	Method and Description
void	onMatch(org.apache.calcite.plan.RelOptRuleCall call)

Methods inherited from class org.apache.calcite.plan.RelOptRule

any, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, matches, none, operand, operand, operand, operand, operand, operandJ, operandJ, some, toString, unordered

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

INSTANCE

public static final FlinkSemiAntiJoinJoinTransposeRule INSTANCE

Method Detail

onMatch

public void onMatch(org.apache.calcite.plan.RelOptRuleCall call)

Specified by:

onMatch in class org.apache.calcite.plan.RelOptRule