org.apache.calcite.rel.metadata

Class RelMdPopulationSize

java.lang.Object

org.apache.calcite.rel.metadata.RelMdPopulationSize

public class RelMdPopulationSize
extends Object

RelMdPopulationSize supplies a default implementation of RelMetadataQuery.getPopulationSize(org.apache.calcite.rel.RelNode, org.apache.calcite.util.ImmutableBitSet) 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
Double	getPopulationSize(Aggregate rel, ImmutableBitSet groupKey)
Double	getPopulationSize(Exchange rel, ImmutableBitSet groupKey)
Double	getPopulationSize(Filter rel, ImmutableBitSet groupKey)
Double	getPopulationSize(Join rel, ImmutableBitSet groupKey)
Double	getPopulationSize(Project rel, ImmutableBitSet groupKey)
Double	getPopulationSize(RelNode rel, ImmutableBitSet groupKey)
Double	getPopulationSize(SemiJoin rel, ImmutableBitSet groupKey)
Double	getPopulationSize(Sort rel, ImmutableBitSet groupKey)
Double	getPopulationSize(Union rel, ImmutableBitSet groupKey)
Double	getPopulationSize(Values rel, ImmutableBitSet groupKey)

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

getPopulationSize

public Double getPopulationSize(Filter rel,
                       ImmutableBitSet groupKey)

getPopulationSize

public Double getPopulationSize(Sort rel,
                       ImmutableBitSet groupKey)

getPopulationSize

public Double getPopulationSize(Exchange rel,
                       ImmutableBitSet groupKey)

getPopulationSize

public Double getPopulationSize(Union rel,
                       ImmutableBitSet groupKey)

getPopulationSize

public Double getPopulationSize(Join rel,
                       ImmutableBitSet groupKey)

getPopulationSize

public Double getPopulationSize(SemiJoin rel,
                       ImmutableBitSet groupKey)

getPopulationSize

public Double getPopulationSize(Aggregate rel,
                       ImmutableBitSet groupKey)

getPopulationSize

public Double getPopulationSize(Values rel,
                       ImmutableBitSet groupKey)

getPopulationSize

public Double getPopulationSize(Project rel,
                       ImmutableBitSet groupKey)

getPopulationSize

public Double getPopulationSize(RelNode rel,
                       ImmutableBitSet groupKey)