Package com.twilio.kudu.sql.rel

Class KuduToEnumerableRel

  • All Implemented Interfaces:
    Cloneable, org.apache.calcite.adapter.enumerable.EnumerableRel, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.convert.Converter, org.apache.calcite.rel.PhysicalNode, org.apache.calcite.rel.RelNode
    public class KuduToEnumerableRel
extends org.apache.calcite.rel.convert.ConverterImpl
implements org.apache.calcite.adapter.enumerable.EnumerableRel

    • Nested Class Summary

      • Nested classes/interfaces inherited from interface org.apache.calcite.adapter.enumerable.EnumerableRel

        org.apache.calcite.adapter.enumerable.EnumerableRel.Prefer, org.apache.calcite.adapter.enumerable.EnumerableRel.Result

      • Nested classes/interfaces inherited from interface org.apache.calcite.rel.RelNode

        org.apache.calcite.rel.RelNode.Context

    • Field Summary

      • Fields inherited from class org.apache.calcite.rel.convert.ConverterImpl

        inTraits, traitDef

      • Fields inherited from class org.apache.calcite.rel.SingleRel

        input

      • Fields inherited from class org.apache.calcite.rel.AbstractRelNode

        digest, id, rowType, traitSet

    • Constructor Summary

      Constructors 
      Constructor Description
      KuduToEnumerableRel​(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, org.apache.calcite.rel.RelNode input)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      org.apache.calcite.plan.RelOptCost computeSelfCost​(org.apache.calcite.plan.RelOptPlanner planner, org.apache.calcite.rel.metadata.RelMetadataQuery mq)  
      org.apache.calcite.rel.RelNode copy​(org.apache.calcite.plan.RelTraitSet traitSet, List<org.apache.calcite.rel.RelNode> inputs)  
      List<Integer> getPrimaryKeyColumnsInProjection​(List<Integer> sortPkColumnIndices, List<Integer> projectedColumnIndices)
      Return the Integer indices in the Row Projection that match the primary key columns and in the order they need to match.
      org.apache.calcite.adapter.enumerable.EnumerableRel.Result implement​(org.apache.calcite.adapter.enumerable.EnumerableRelImplementor implementor, org.apache.calcite.adapter.enumerable.EnumerableRel.Prefer pref)  

      • Methods inherited from class org.apache.calcite.rel.convert.ConverterImpl

        cannotImplement, getInputTraits, getTraitDef

      • Methods inherited from class org.apache.calcite.rel.SingleRel

        childrenAccept, deriveRowType, estimateRowCount, explainTerms, getInput, getInputs, replaceInput

      • Methods inherited from class org.apache.calcite.rel.AbstractRelNode

        accept, accept, collectVariablesSet, collectVariablesUsed, deepEquals, deepHashCode, equals, explain, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getRelDigest, getRelTypeName, getRowType, getTable, getTraitSet, getVariablesSet, hashCode, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, sole, toString

      • Methods inherited from interface org.apache.calcite.rel.convert.Converter

        getInput

      • Methods inherited from interface org.apache.calcite.adapter.enumerable.EnumerableRel

        deriveTraits, getDeriveMode, passThroughTraits

      • Methods inherited from interface org.apache.calcite.rel.PhysicalNode

        derive, derive, passThrough

      • Methods inherited from interface org.apache.calcite.rel.RelNode

        accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, deepEquals, deepHashCode, estimateRowCount, explain, explain, fieldIsNullable, getConvention, getCorrelVariable, getDigest, getExpectedInputRowType, getInput, getInputs, getRelDigest, getRelTypeName, getRowType, getTable, getVariablesSet, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput

      • Methods inherited from interface org.apache.calcite.plan.RelOptNode

        getCluster, getDescription, getId, getTraitSet

    • Constructor Detail

      • KuduToEnumerableRel

        public KuduToEnumerableRel​(org.apache.calcite.plan.RelOptCluster cluster,
                           org.apache.calcite.plan.RelTraitSet traits,
                           org.apache.calcite.rel.RelNode input)

    • Method Detail

      • copy

        public org.apache.calcite.rel.RelNode copy​(org.apache.calcite.plan.RelTraitSet traitSet,
                                           List<org.apache.calcite.rel.RelNode> inputs)
        Specified by:
        copy in interface org.apache.calcite.rel.RelNode
        Overrides:
        copy in class org.apache.calcite.rel.AbstractRelNode

      • computeSelfCost

        public org.apache.calcite.plan.RelOptCost computeSelfCost​(org.apache.calcite.plan.RelOptPlanner planner,
                                                          org.apache.calcite.rel.metadata.RelMetadataQuery mq)
        Specified by:
        computeSelfCost in interface org.apache.calcite.rel.RelNode
        Overrides:
        computeSelfCost in class org.apache.calcite.rel.convert.ConverterImpl

      • implement

        public org.apache.calcite.adapter.enumerable.EnumerableRel.Result implement​(org.apache.calcite.adapter.enumerable.EnumerableRelImplementor implementor,
                                                                            org.apache.calcite.adapter.enumerable.EnumerableRel.Prefer pref)
        Specified by:
        implement in interface org.apache.calcite.adapter.enumerable.EnumerableRel

      • getPrimaryKeyColumnsInProjection

        public List<Integer> getPrimaryKeyColumnsInProjection​(List<Integer> sortPkColumnIndices,
                                                      List<Integer> projectedColumnIndices)
        Return the Integer indices in the Row Projection that match the primary key columns and in the order they need to match. This lays out how to compare two CalciteRows and determine which one is smaller.

        As an example, imagine we have a table (A, B, C, D, E) with primary columns in order of (A, B) and we have a scanner SELECT D, C, E, B, A the projectedSchema will be D, C, E, B, A and the tableSchema will be A, B, C, D, E *this* function will return List(4, 3) -- the position's of A and B within the projection and in the order they need to be sorted by.

        The returned index list is used by the sorted KuduEnumerable to merge the results from multiple scanners.

        Parameters:
        projectedColumnIndices - the indices of the columns that are being selected or required to evaluate a filter in memory
        sortPkColumnIndices - the indices of the primary key columns that are present in the ORDER BY clause
        Returns:
        List of column indexes that part of the primary key in the Kudu Sorted order