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

Interface FlinkMetadata.ColumnNullCount.Handler

All Superinterfaces:
org.apache.calcite.rel.metadata.MetadataHandler<FlinkMetadata.ColumnNullCount>
Enclosing interface:
FlinkMetadata.ColumnNullCount
public static interface FlinkMetadata.ColumnNullCount.Handler extends org.apache.calcite.rel.metadata.MetadataHandler<FlinkMetadata.ColumnNullCount>
Handler API.

  • Method Summary

    Modifier and Type
    Method
    Description
    Double
    getColumnNullCount(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 Details

    • getColumnNullCount

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