org.apache.flink.table.planner.plan.metadata

Interface FlinkMetadata.ColumnOriginNullCount.Handler

All Superinterfaces:

org.apache.calcite.rel.metadata.MetadataHandler<FlinkMetadata.ColumnOriginNullCount>

Enclosing interface:

FlinkMetadata.ColumnOriginNullCount

public static interface FlinkMetadata.ColumnOriginNullCount.Handler
extends org.apache.calcite.rel.metadata.MetadataHandler<FlinkMetadata.ColumnOriginNullCount>

Handler API.

Method Summary

Modifier and Type	Method and Description
Double	getColumnOriginNullCount(org.apache.calcite.rel.RelNode r, org.apache.calcite.rel.metadata.RelMetadataQuery mq, int index)

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

getDef

Method Detail

getColumnOriginNullCount

Double getColumnOriginNullCount(org.apache.calcite.rel.RelNode r,
                                org.apache.calcite.rel.metadata.RelMetadataQuery mq,
                                int index)