org.apache.calcite.rel.metadata

Interface BuiltInMetadata.DistinctRowCount.Handler

All Superinterfaces:

MetadataHandler<BuiltInMetadata.DistinctRowCount>

Enclosing interface:

BuiltInMetadata.DistinctRowCount

public static interface BuiltInMetadata.DistinctRowCount.Handler
extends MetadataHandler<BuiltInMetadata.DistinctRowCount>

Handler API.

Method Summary

Modifier and Type	Method and Description
Double	getDistinctRowCount(RelNode r, RelMetadataQuery mq, ImmutableBitSet groupKey, RexNode predicate)

Methods inherited from interface org.apache.calcite.rel.metadata.MetadataHandler

getDef

Method Detail

getDistinctRowCount

Double getDistinctRowCount(RelNode r,
                           RelMetadataQuery mq,
                           ImmutableBitSet groupKey,
                           RexNode predicate)