Class TopNRankingStatsRule

java.lang.Object

io.trino.cost.SimpleStatsRule<TopNRankingNode>

io.trino.cost.TopNRankingStatsRule

All Implemented Interfaces:

ComposableStatsCalculator.Rule<TopNRankingNode>

public class TopNRankingStatsRule
extends SimpleStatsRule<TopNRankingNode>

Stats rule for TopNRankingNode.

Constructor Summary

Constructors

Constructor	Description
TopNRankingStatsRule(StatsNormalizer normalizer)

Method Summary

Modifier and Type	Method	Description
Optional<PlanNodeStatsEstimate>	doCalculate(TopNRankingNode node, StatsCalculator.Context context)
Pattern<TopNRankingNode>	getPattern()

Methods inherited from class io.trino.cost.SimpleStatsRule

calculate

Methods inherited from class java.lang.Object

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

Constructor Details

TopNRankingStatsRule

public TopNRankingStatsRule(StatsNormalizer normalizer)

Method Details

getPattern

public Pattern<TopNRankingNode> getPattern()

doCalculate

public Optional<PlanNodeStatsEstimate> doCalculate(TopNRankingNode node,
 StatsCalculator.Context context)

Specified by:

doCalculate in class SimpleStatsRule<TopNRankingNode>