org.apache.calcite.rel.metadata

Class RelMdColumnUniqueness

java.lang.Object

org.apache.calcite.rel.metadata.RelMdColumnUniqueness

public class RelMdColumnUniqueness
extends Object

RelMdColumnUniqueness supplies a default implementation of RelMetadataQuery.areColumnsUnique(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
Boolean	areColumnsUnique(Aggregate rel, ImmutableBitSet columns, boolean ignoreNulls)
Boolean	areColumnsUnique(Correlate rel, ImmutableBitSet columns, boolean ignoreNulls)
Boolean	areColumnsUnique(Exchange rel, ImmutableBitSet columns, boolean ignoreNulls)
Boolean	areColumnsUnique(Filter rel, ImmutableBitSet columns, boolean ignoreNulls)
Boolean	areColumnsUnique(Join rel, ImmutableBitSet columns, boolean ignoreNulls)
Boolean	areColumnsUnique(Project rel, ImmutableBitSet columns, boolean ignoreNulls)
Boolean	areColumnsUnique(RelNode rel, ImmutableBitSet columns, boolean ignoreNulls)
Boolean	areColumnsUnique(SemiJoin rel, ImmutableBitSet columns, boolean ignoreNulls)
Boolean	areColumnsUnique(Sort rel, ImmutableBitSet columns, boolean ignoreNulls)

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

areColumnsUnique

public Boolean areColumnsUnique(Filter rel,
                       ImmutableBitSet columns,
                       boolean ignoreNulls)

areColumnsUnique

public Boolean areColumnsUnique(Sort rel,
                       ImmutableBitSet columns,
                       boolean ignoreNulls)

areColumnsUnique

public Boolean areColumnsUnique(Exchange rel,
                       ImmutableBitSet columns,
                       boolean ignoreNulls)

areColumnsUnique

public Boolean areColumnsUnique(Correlate rel,
                       ImmutableBitSet columns,
                       boolean ignoreNulls)

areColumnsUnique

public Boolean areColumnsUnique(Project rel,
                       ImmutableBitSet columns,
                       boolean ignoreNulls)

areColumnsUnique

public Boolean areColumnsUnique(Join rel,
                       ImmutableBitSet columns,
                       boolean ignoreNulls)

areColumnsUnique

public Boolean areColumnsUnique(SemiJoin rel,
                       ImmutableBitSet columns,
                       boolean ignoreNulls)

areColumnsUnique

public Boolean areColumnsUnique(Aggregate rel,
                       ImmutableBitSet columns,
                       boolean ignoreNulls)

areColumnsUnique

public Boolean areColumnsUnique(RelNode rel,
                       ImmutableBitSet columns,
                       boolean ignoreNulls)