org.apache.calcite.rel.metadata

Class RelMdDistinctRowCount

java.lang.Object

org.apache.calcite.rel.metadata.RelMdDistinctRowCount

public class RelMdDistinctRowCount
extends Object

RelMdDistinctRowCount supplies a default implementation of RelMetadataQuery.getDistinctRowCount(org.apache.calcite.rel.RelNode, org.apache.calcite.util.ImmutableBitSet, org.apache.calcite.rex.RexNode) for the standard logical algebra.

Field Summary

Fields

Modifier and Type	Field and Description
static RelMetadataProvider	SOURCE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	RelMdDistinctRowCount()

Method Summary

Methods

Modifier and Type	Method and Description
Double	getDistinctRowCount(Aggregate rel, ImmutableBitSet groupKey, RexNode predicate)
Double	getDistinctRowCount(Exchange rel, ImmutableBitSet groupKey, RexNode predicate)
Double	getDistinctRowCount(Filter rel, ImmutableBitSet groupKey, RexNode predicate)
Double	getDistinctRowCount(Join rel, ImmutableBitSet groupKey, RexNode predicate)
Double	getDistinctRowCount(Project rel, ImmutableBitSet groupKey, RexNode predicate)
Double	getDistinctRowCount(RelNode rel, ImmutableBitSet groupKey, RexNode predicate)
Double	getDistinctRowCount(SemiJoin rel, ImmutableBitSet groupKey, RexNode predicate)
Double	getDistinctRowCount(Sort rel, ImmutableBitSet groupKey, RexNode predicate)
Double	getDistinctRowCount(Union rel, ImmutableBitSet groupKey, RexNode predicate)
Double	getDistinctRowCount(Values rel, ImmutableBitSet groupKey, RexNode predicate)

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

Constructor Detail

RelMdDistinctRowCount

protected RelMdDistinctRowCount()

Method Detail

getDistinctRowCount

public Double getDistinctRowCount(Union rel,
                         ImmutableBitSet groupKey,
                         RexNode predicate)

getDistinctRowCount

public Double getDistinctRowCount(Sort rel,
                         ImmutableBitSet groupKey,
                         RexNode predicate)

getDistinctRowCount

public Double getDistinctRowCount(Exchange rel,
                         ImmutableBitSet groupKey,
                         RexNode predicate)

getDistinctRowCount

public Double getDistinctRowCount(Filter rel,
                         ImmutableBitSet groupKey,
                         RexNode predicate)

getDistinctRowCount

public Double getDistinctRowCount(Join rel,
                         ImmutableBitSet groupKey,
                         RexNode predicate)

getDistinctRowCount

public Double getDistinctRowCount(SemiJoin rel,
                         ImmutableBitSet groupKey,
                         RexNode predicate)

getDistinctRowCount

public Double getDistinctRowCount(Aggregate rel,
                         ImmutableBitSet groupKey,
                         RexNode predicate)

getDistinctRowCount

public Double getDistinctRowCount(Values rel,
                         ImmutableBitSet groupKey,
                         RexNode predicate)

getDistinctRowCount

public Double getDistinctRowCount(Project rel,
                         ImmutableBitSet groupKey,
                         RexNode predicate)

getDistinctRowCount

public Double getDistinctRowCount(RelNode rel,
                         ImmutableBitSet groupKey,
                         RexNode predicate)