Package org.apache.calcite.sql2rel

Class DeduplicateCorrelateVariables.DeduplicateCorrelateVariablesShuttle

java.lang.Object

org.apache.calcite.rex.RexShuttle

org.apache.calcite.sql2rel.DeduplicateCorrelateVariables.DeduplicateCorrelateVariablesShuttle

All Implemented Interfaces:

RexVisitor<RexNode>

Enclosing class:

DeduplicateCorrelateVariables

private static class DeduplicateCorrelateVariables.DeduplicateCorrelateVariablesShuttle
extends RexShuttle

Replaces alternative names of correlation variable to its canonical name.

Field Summary

Fields

Modifier and Type	Field	Description
private com.google.common.collect.ImmutableSet<CorrelationId>	alternateIds
private RexBuilder	builder
private CorrelationId	canonicalId
private DeduplicateCorrelateVariables	shuttle

Constructor Summary

Constructors

Modifier	Constructor	Description
private	DeduplicateCorrelateVariablesShuttle(RexBuilder builder, CorrelationId canonicalId, com.google.common.collect.ImmutableSet<CorrelationId> alternateIds, DeduplicateCorrelateVariables shuttle)

Method Summary

Modifier and Type	Method	Description
RexNode	visitCorrelVariable(RexCorrelVariable variable)
RexNode	visitSubQuery(RexSubQuery subQuery)

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

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

Methods inherited from class java.lang.Object

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

Field Detail

builder

private final RexBuilder builder

canonicalId

private final CorrelationId canonicalId

alternateIds

private final com.google.common.collect.ImmutableSet<CorrelationId> alternateIds

shuttle

private final DeduplicateCorrelateVariables shuttle

Constructor Detail

DeduplicateCorrelateVariablesShuttle

private DeduplicateCorrelateVariablesShuttle(RexBuilder builder,
                                             CorrelationId canonicalId,
                                             com.google.common.collect.ImmutableSet<CorrelationId> alternateIds,
                                             DeduplicateCorrelateVariables shuttle)

Method Detail

visitCorrelVariable

public RexNode visitCorrelVariable(RexCorrelVariable variable)

Specified by:

visitCorrelVariable in interface RexVisitor<RexNode>

Overrides:

visitCorrelVariable in class RexShuttle

visitSubQuery

public RexNode visitSubQuery(RexSubQuery subQuery)

Specified by:

visitSubQuery in interface RexVisitor<RexNode>

Overrides:

visitSubQuery in class RexShuttle