Package io.prestosql.cost

Class ExchangeStatsRule

java.lang.Object

io.prestosql.cost.SimpleStatsRule<ExchangeNode>

io.prestosql.cost.ExchangeStatsRule

All Implemented Interfaces:

ComposableStatsCalculator.Rule<ExchangeNode>

public class ExchangeStatsRule
extends SimpleStatsRule<ExchangeNode>

Constructor Summary

Constructors

Constructor	Description
ExchangeStatsRule(StatsNormalizer normalizer)

Method Summary

Modifier and Type	Method	Description
protected Optional<PlanNodeStatsEstimate>	doCalculate(ExchangeNode node, StatsProvider statsProvider, Lookup lookup, Session session, TypeProvider types)
Pattern<ExchangeNode>	getPattern()

Methods inherited from class io.prestosql.cost.SimpleStatsRule

calculate

Methods inherited from class java.lang.Object

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

Constructor Detail

ExchangeStatsRule

public ExchangeStatsRule(StatsNormalizer normalizer)

Method Detail

getPattern

public Pattern<ExchangeNode> getPattern()

doCalculate

protected Optional<PlanNodeStatsEstimate> doCalculate(ExchangeNode node,
                                                      StatsProvider statsProvider,
                                                      Lookup lookup,
                                                      Session session,
                                                      TypeProvider types)

Specified by:

doCalculate in class SimpleStatsRule<ExchangeNode>