Package org.apache.calcite.rel.metadata

Class RelMdPercentageOriginalRows

java.lang.Object

org.apache.calcite.rel.metadata.RelMdPercentageOriginalRows

All Implemented Interfaces:

MetadataHandler<BuiltInMetadata.PercentageOriginalRows>

public class RelMdPercentageOriginalRows
extends Object
implements MetadataHandler<BuiltInMetadata.PercentageOriginalRows>

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	Description
static RelMetadataProvider	SOURCE

Method Summary

Modifier and Type	Method	Description
RelOptCost	getCumulativeCost(EnumerableInterpreter rel, RelMetadataQuery mq)
RelOptCost	getCumulativeCost(RelNode rel, RelMetadataQuery mq)
MetadataDef<BuiltInMetadata.PercentageOriginalRows>	getDef()
RelOptCost	getNonCumulativeCost(RelNode rel, RelMetadataQuery mq)
Double	getPercentageOriginalRows(Aggregate rel, RelMetadataQuery mq)
Double	getPercentageOriginalRows(Join rel, RelMetadataQuery mq)
Double	getPercentageOriginalRows(Union rel, RelMetadataQuery mq)
Double	getPercentageOriginalRows(RelNode rel, RelMetadataQuery mq)

Methods inherited from class java.lang.Object

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

Field Details

SOURCE

public static final RelMetadataProvider SOURCE

Method Details

getDef

public MetadataDef<BuiltInMetadata.PercentageOriginalRows> getDef()

Specified by:

getDef in interface MetadataHandler<BuiltInMetadata.PercentageOriginalRows>

getPercentageOriginalRows

public Double getPercentageOriginalRows(Aggregate rel, RelMetadataQuery mq)

getPercentageOriginalRows

public Double getPercentageOriginalRows(Union rel, RelMetadataQuery mq)

getPercentageOriginalRows

public Double getPercentageOriginalRows(Join rel, RelMetadataQuery mq)

getPercentageOriginalRows

public Double getPercentageOriginalRows(RelNode rel, RelMetadataQuery mq)

getCumulativeCost

public RelOptCost getCumulativeCost(RelNode rel, RelMetadataQuery mq)

getCumulativeCost

public RelOptCost getCumulativeCost(EnumerableInterpreter rel, RelMetadataQuery mq)

getNonCumulativeCost

public RelOptCost getNonCumulativeCost(RelNode rel, RelMetadataQuery mq)