io.prestosql.cost

Class UnionStatsRule

java.lang.Object

io.prestosql.cost.SimpleStatsRule<UnionNode>

io.prestosql.cost.UnionStatsRule

All Implemented Interfaces:

ComposableStatsCalculator.Rule<UnionNode>

public class UnionStatsRule
extends SimpleStatsRule<UnionNode>

Constructor Summary

Constructors

Constructor and Description
UnionStatsRule(StatsNormalizer normalizer)

Method Summary

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

UnionStatsRule

public UnionStatsRule(StatsNormalizer normalizer)

Method Detail

getPattern

public Pattern<UnionNode> getPattern()

doCalculate

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

Specified by:

doCalculate in class SimpleStatsRule<UnionNode>