io.prestosql.sql.planner.iterative.rule

Class PushRemoteExchangeThroughAssignUniqueId

java.lang.Object

io.prestosql.sql.planner.iterative.rule.PushRemoteExchangeThroughAssignUniqueId

All Implemented Interfaces:

Rule<ExchangeNode>

public final class PushRemoteExchangeThroughAssignUniqueId
extends Object
implements Rule<ExchangeNode>

Pushes RemoteExchange node down through the AssignUniqueId to preserve partitioned_on(unique) and grouped(unique) properties for the output of the AssignUniqueId.

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
PushRemoteExchangeThroughAssignUniqueId()

Method Summary

Modifier and Type	Method and Description
Rule.Result	apply(ExchangeNode node, Captures captures, Rule.Context context)
Pattern<ExchangeNode>	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

PushRemoteExchangeThroughAssignUniqueId

public PushRemoteExchangeThroughAssignUniqueId()

Method Detail

getPattern

public Pattern<ExchangeNode> getPattern()

Description copied from interface: Rule

Returns a pattern to which plan nodes this rule applies.

Specified by:

getPattern in interface Rule<ExchangeNode>

apply

public Rule.Result apply(ExchangeNode node,
                         Captures captures,
                         Rule.Context context)

Specified by:

apply in interface Rule<ExchangeNode>