org.apache.calcite.rel.metadata

Class RelMdPercentageOriginalRows

java.lang.Object

org.apache.calcite.rel.metadata.RelMdPercentageOriginalRows

public class RelMdPercentageOriginalRows
extends Object

RelMdPercentageOriginalRows supplies a default implementation of RelMetadataQuery.getPercentageOriginalRows(org.apache.calcite.rel.RelNode) for the standard logical algebra.

Field Summary

Fields

Modifier and Type	Field and Description
static RelMetadataProvider	SOURCE

Method Summary

Methods

Modifier and Type	Method and Description
RelOptCost	getCumulativeCost(EnumerableInterpreter rel)
RelOptCost	getCumulativeCost(RelNode rel)
RelOptCost	getNonCumulativeCost(RelNode rel)
Double	getPercentageOriginalRows(Aggregate rel)
Double	getPercentageOriginalRows(Join rel)
Double	getPercentageOriginalRows(RelNode rel)
Double	getPercentageOriginalRows(Union rel)

Methods inherited from class java.lang.Object

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

Field Detail

SOURCE

public static final RelMetadataProvider SOURCE

Method Detail

getPercentageOriginalRows

public Double getPercentageOriginalRows(Aggregate rel)

getPercentageOriginalRows

public Double getPercentageOriginalRows(Union rel)

getPercentageOriginalRows

public Double getPercentageOriginalRows(Join rel)

getPercentageOriginalRows

public Double getPercentageOriginalRows(RelNode rel)

getCumulativeCost

public RelOptCost getCumulativeCost(RelNode rel)

getCumulativeCost

public RelOptCost getCumulativeCost(EnumerableInterpreter rel)

getNonCumulativeCost

public RelOptCost getNonCumulativeCost(RelNode rel)