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

Class RelMdNodeStats

  • All Implemented Interfaces:
    org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.metadata.MetadataHandler<NodeStatsMetadata>
    public class RelMdNodeStats
extends java.lang.Object
implements org.apache.beam.vendor.calcite.v1_40_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 org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.metadata.RelMetadataProvider SOURCE  

    • Constructor Summary

      Constructors 
      Constructor Description
      RelMdNodeStats()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.metadata.MetadataDef<NodeStatsMetadata> getDef()  
      NodeStats getNodeStats​(org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.RelNode rel, org.apache.beam.vendor.calcite.v1_40_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 Detail

      • SOURCE

        public static final org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.metadata.RelMetadataProvider SOURCE

    • Constructor Detail

      • RelMdNodeStats

        public RelMdNodeStats()

    • Method Detail

      • getDef

        public org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.metadata.MetadataDef<NodeStatsMetadata> getDef()
        Specified by:
        getDef in interface org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.metadata.MetadataHandler<NodeStatsMetadata>

      • getNodeStats

        public NodeStats getNodeStats​(org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.RelNode rel,
                              org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.rel.metadata.RelMetadataQuery mq)