Package org.apache.calcite.plan

Class RelOptUtil.RexCorrelVariableMapShuttle

java.lang.Object

org.apache.calcite.rex.RexShuttle

org.apache.calcite.plan.RelOptUtil.RexCorrelVariableMapShuttle

All Implemented Interfaces:

RexVisitor<RexNode>

Enclosing class:

RelOptUtil

public static class RelOptUtil.RexCorrelVariableMapShuttle
extends RexShuttle

Updates correlate references in RexNode expressions.

Constructor Summary

Constructors

Constructor	Description
RexCorrelVariableMapShuttle(CorrelationId correlationId, RelDataType newCorrelRowType, Mapping mapping, RexBuilder rexBuilder)	Constructs a RexCorrelVariableMapShuttle.

Method Summary

Modifier and Type	Method	Description
RexNode	visitFieldAccess(RexFieldAccess fieldAccess)
RexNode	visitSubQuery(RexSubQuery subQuery)

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

apply, apply, mutate, visitArray, visitCall, visitCorrelVariable, visitDynamicParam, visitFieldCollations, visitInputRef, visitLambda, visitLambdaRef, visitList, visitLiteral, visitLocalRef, visitNodeAndFieldIndex, visitOver, visitOverAggFunction, visitPatternFieldRef, visitRangeRef, visitTableInputRef, visitWindow

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.rex.RexVisitor

visitEach, visitList, visitList

Constructor Details

RexCorrelVariableMapShuttle

public RexCorrelVariableMapShuttle(CorrelationId correlationId,
 RelDataType newCorrelRowType,
 Mapping mapping,
 RexBuilder rexBuilder)

Constructs a RexCorrelVariableMapShuttle.

Parameters:

correlationId - The ID of the correlation variable to update.

newCorrelRowType - The new row type for the correlate reference.

mapping - Mapping to transform field indices.

rexBuilder - A builder for constructing new RexNodes.

Method Details

visitFieldAccess

public RexNode visitFieldAccess(RexFieldAccess fieldAccess)

Specified by:

visitFieldAccess in interface RexVisitor<RexNode>

Overrides:

visitFieldAccess in class RexShuttle

visitSubQuery

public RexNode visitSubQuery(RexSubQuery subQuery)

Specified by:

visitSubQuery in interface RexVisitor<RexNode>

Overrides:

visitSubQuery in class RexShuttle