com.facebook.presto.sql.planner.iterative.rule

Class PruneSemiJoinColumns

java.lang.Object

com.facebook.presto.sql.planner.iterative.rule.ProjectOffPushDownRule<SemiJoinNode>

com.facebook.presto.sql.planner.iterative.rule.PruneSemiJoinColumns

All Implemented Interfaces:

Rule<ProjectNode>

public class PruneSemiJoinColumns
extends ProjectOffPushDownRule<SemiJoinNode>

Nested Class Summary

Nested classes/interfaces inherited from interface com.facebook.presto.sql.planner.iterative.Rule

Rule.Context, Rule.Result

Constructor Summary

Constructors

Constructor and Description
PruneSemiJoinColumns()

Method Summary

Modifier and Type	Method and Description
protected Optional<PlanNode>	pushDownProjectOff(PlanNodeIdAllocator idAllocator, PlanVariableAllocator variableAllocator, SemiJoinNode semiJoinNode, Set<VariableReferenceExpression> referencedOutputs)

Methods inherited from class com.facebook.presto.sql.planner.iterative.rule.ProjectOffPushDownRule

apply, getPattern

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.facebook.presto.sql.planner.iterative.Rule

isEnabled

Constructor Detail

PruneSemiJoinColumns

public PruneSemiJoinColumns()

Method Detail

pushDownProjectOff

protected Optional<PlanNode> pushDownProjectOff(PlanNodeIdAllocator idAllocator,
                                                PlanVariableAllocator variableAllocator,
                                                SemiJoinNode semiJoinNode,
                                                Set<VariableReferenceExpression> referencedOutputs)

Specified by:

pushDownProjectOff in class ProjectOffPushDownRule<SemiJoinNode>