org.apache.calcite.rel.rules

Class FilterRemoveIsNotDistinctFromRule.RemoveIsNotDistinctFromRexShuttle

java.lang.Object

org.apache.calcite.rex.RexShuttle

org.apache.calcite.rel.rules.FilterRemoveIsNotDistinctFromRule.RemoveIsNotDistinctFromRexShuttle

All Implemented Interfaces:

RexVisitor<RexNode>

Enclosing class:

FilterRemoveIsNotDistinctFromRule

private class FilterRemoveIsNotDistinctFromRule.RemoveIsNotDistinctFromRexShuttle
extends RexShuttle

Shuttle that removes 'x IS NOT DISTINCT FROM y' and converts it to 'CASE WHEN x IS NULL THEN y IS NULL WHEN y IS NULL THEN x IS NULL ELSE x = y END'.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) RexBuilder	rexBuilder

Constructor Summary

Constructors

Constructor and Description
RemoveIsNotDistinctFromRexShuttle(RexBuilder rexBuilder)

Method Summary

Modifier and Type	Method and Description
RexNode	visitCall(RexCall call)

Methods inherited from class org.apache.calcite.rex.RexShuttle

apply, apply, apply, mutate, visitArray, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitFieldCollations, visitInputRef, visitList, visitList, visitLiteral, visitLocalRef, visitOver, visitPatternFieldRef, visitRangeRef, visitSubQuery, visitTableInputRef, visitWindow

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

rexBuilder

RexBuilder rexBuilder

Constructor Detail

RemoveIsNotDistinctFromRexShuttle

RemoveIsNotDistinctFromRexShuttle(RexBuilder rexBuilder)

Method Detail

visitCall

public RexNode visitCall(RexCall call)

Specified by:

visitCall in interface RexVisitor<RexNode>

Overrides:

visitCall in class RexShuttle