org.apache.calcite.rel.metadata

Interface BuiltInMetadata.Size.Handler

All Superinterfaces:

MetadataHandler<BuiltInMetadata.Size>

Enclosing interface:

BuiltInMetadata.Size

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

Handler API.

Method Summary

Modifier and Type	Method and Description
@Nullable List<Double>	averageColumnSizes(RelNode r, RelMetadataQuery mq)
@Nullable Double	averageRowSize(RelNode r, RelMetadataQuery mq)
default MetadataDef<BuiltInMetadata.Size>	getDef()

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

handlerMethods

Method Detail

averageRowSize

@Nullable Double averageRowSize(RelNode r,
                                RelMetadataQuery mq)

averageColumnSizes

@Nullable List<Double> averageColumnSizes(RelNode r,
                                          RelMetadataQuery mq)

getDef

default MetadataDef<BuiltInMetadata.Size> getDef()

Specified by:

getDef in interface MetadataHandler<BuiltInMetadata.Size>