io.prestosql.cost

Class TableScanStatsRule

java.lang.Object

io.prestosql.cost.SimpleStatsRule<TableScanNode>

io.prestosql.cost.TableScanStatsRule

All Implemented Interfaces:

ComposableStatsCalculator.Rule<TableScanNode>

public class TableScanStatsRule
extends SimpleStatsRule<TableScanNode>

Constructor Summary

Constructors

Constructor and Description
TableScanStatsRule(Metadata metadata, StatsNormalizer normalizer)

Method Summary

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

TableScanStatsRule

public TableScanStatsRule(Metadata metadata,
                          StatsNormalizer normalizer)

Method Detail

getPattern

public Pattern<TableScanNode> getPattern()

doCalculate

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

Specified by:

doCalculate in class SimpleStatsRule<TableScanNode>