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

Class RelMdNodeStats

java.lang.Object
org.apache.beam.sdk.extensions.sql.impl.planner.RelMdNodeStats
All Implemented Interfaces:
org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.MetadataHandler<NodeStatsMetadata>
public class RelMdNodeStats extends Object implements org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.MetadataHandler<NodeStatsMetadata>
This is the implementation of NodeStatsMetadata. Methods to estimate rate and row count for Calcite's logical nodes be implemented here.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.RelMetadataProvider
    SOURCE
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    RelMdNodeStats()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.MetadataDef<NodeStatsMetadata>
    getDef()
     
    NodeStats
    getNodeStats(org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.RelNode rel, org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.RelMetadataQuery mq)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • SOURCE

      public static final org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.RelMetadataProvider SOURCE

  • Constructor Details

    • RelMdNodeStats

      public RelMdNodeStats()

  • Method Details

    • getDef

      public org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.MetadataDef<NodeStatsMetadata> getDef()
      Specified by:
      getDef in interface org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.MetadataHandler<NodeStatsMetadata>

    • getNodeStats

      public NodeStats getNodeStats(org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.RelNode rel, org.apache.beam.vendor.calcite.v1_28_0.org.apache.calcite.rel.metadata.RelMetadataQuery mq)