io.prestosql.sql.planner.iterative.rule

Class PushProjectionThroughUnion

java.lang.Object

io.prestosql.sql.planner.iterative.rule.PushProjectionThroughUnion

All Implemented Interfaces:

Rule<ProjectNode>

public class PushProjectionThroughUnion
extends Object
implements Rule<ProjectNode>

Nested Class Summary

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

Rule.Context, Rule.Result

Constructor Summary

Constructors

Constructor and Description
PushProjectionThroughUnion()

Method Summary

Modifier and Type	Method and Description
Rule.Result	apply(ProjectNode parent, Captures captures, Rule.Context context)
Pattern<ProjectNode>	getPattern() Returns a pattern to which plan nodes this rule applies.

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

PushProjectionThroughUnion

public PushProjectionThroughUnion()

Method Detail

getPattern

public Pattern<ProjectNode> getPattern()

Description copied from interface: Rule

Returns a pattern to which plan nodes this rule applies.

Specified by:

getPattern in interface Rule<ProjectNode>

apply

public Rule.Result apply(ProjectNode parent,
                         Captures captures,
                         Rule.Context context)

Specified by:

apply in interface Rule<ProjectNode>