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

Class RedundantRankNumberColumnRemoveRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

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

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

Planner rule that removes the output column of rank number iff the rank number column is not used by successor calc.

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 RedundantRankNumberColumnRemoveRule	INSTANCE

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

description, operands, relBuilderFactory

Constructor Summary

Constructors

Constructor and Description
RedundantRankNumberColumnRemoveRule()

Method Summary

Modifier and Type	Method and Description
boolean	matches(org.apache.calcite.plan.RelOptRuleCall call)
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, 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 RedundantRankNumberColumnRemoveRule INSTANCE

Constructor Detail

RedundantRankNumberColumnRemoveRule

public RedundantRankNumberColumnRemoveRule()

Method Detail

matches

public boolean matches(org.apache.calcite.plan.RelOptRuleCall call)

Overrides:

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

onMatch

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

Specified by:

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