Package org.apache.beam.sdk.extensions.sql.impl.planner

Interface NodeStatsMetadata

All Superinterfaces:
org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.metadata.Metadata
public interface NodeStatsMetadata extends org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.metadata.Metadata
This is a metadata used for row count and rate estimation. It extends Calcite's Metadata interface so that we can use MetadataQuery to get our own estimates.

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Interface
    Description
    static interface 
    NodeStatsMetadata.Handler
    Handler API.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.metadata.MetadataDef<NodeStatsMetadata>
    DEF
     
    static final Method
    METHOD
     

  • Method Summary

    Modifier and Type
    Method
    Description
    NodeStats
    getNodeStats()
     

    Methods inherited from interface org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.metadata.Metadata

    rel

  • Field Details

    • METHOD

      static final Method METHOD

    • DEF

      static final org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.metadata.MetadataDef<NodeStatsMetadata> DEF

  • Method Details