Package io.prestosql.sql.planner.iterative.rule

Class PruneEnforceSingleRowColumns

java.lang.Object

io.prestosql.sql.planner.iterative.rule.ProjectOffPushDownRule<EnforceSingleRowNode>

io.prestosql.sql.planner.iterative.rule.PruneEnforceSingleRowColumns

All Implemented Interfaces:

Rule<ProjectNode>

public class PruneEnforceSingleRowColumns
extends ProjectOffPushDownRule<EnforceSingleRowNode>

Nested Class Summary

Nested classes/interfaces inherited from interface io.prestosql.sql.planner.iterative.Rule

Rule.Context, Rule.Result

Constructor Summary

Constructors

Constructor	Description
PruneEnforceSingleRowColumns()

Method Summary

Modifier and Type	Method	Description
protected Optional<PlanNode>	pushDownProjectOff(Rule.Context context, EnforceSingleRowNode enforceSingleRowNode, Set<Symbol> referencedOutputs)

Methods inherited from class io.prestosql.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 io.prestosql.sql.planner.iterative.Rule

isEnabled

Constructor Detail

PruneEnforceSingleRowColumns

public PruneEnforceSingleRowColumns()

Method Detail

pushDownProjectOff

protected Optional<PlanNode> pushDownProjectOff(Rule.Context context,
                                                EnforceSingleRowNode enforceSingleRowNode,
                                                Set<Symbol> referencedOutputs)

Specified by:

pushDownProjectOff in class ProjectOffPushDownRule<EnforceSingleRowNode>