Package io.prestosql.cost
Class ProjectStatsRule
- java.lang.Object
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- io.prestosql.cost.SimpleStatsRule<ProjectNode>
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- io.prestosql.cost.ProjectStatsRule
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- All Implemented Interfaces:
ComposableStatsCalculator.Rule<ProjectNode>
public class ProjectStatsRule extends SimpleStatsRule<ProjectNode>
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Constructor Summary
Constructors Constructor Description ProjectStatsRule(ScalarStatsCalculator scalarStatsCalculator, StatsNormalizer normalizer)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected Optional<PlanNodeStatsEstimate>
doCalculate(ProjectNode node, StatsProvider statsProvider, Lookup lookup, Session session, TypeProvider types)
Pattern<ProjectNode>
getPattern()
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Methods inherited from class io.prestosql.cost.SimpleStatsRule
calculate
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Constructor Detail
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ProjectStatsRule
public ProjectStatsRule(ScalarStatsCalculator scalarStatsCalculator, StatsNormalizer normalizer)
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Method Detail
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getPattern
public Pattern<ProjectNode> getPattern()
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doCalculate
protected Optional<PlanNodeStatsEstimate> doCalculate(ProjectNode node, StatsProvider statsProvider, Lookup lookup, Session session, TypeProvider types)
- Specified by:
doCalculate
in classSimpleStatsRule<ProjectNode>
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