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

Method Details

averageRowSize

@Nullable Double averageRowSize(RelNode r,
 RelMetadataQuery mq)

averageColumnSizes

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

getDef

default MetadataDef<BuiltInMetadata.Size> getDef()

Specified by:

getDef in interface MetadataHandler<BuiltInMetadata.Size>