Package org.apache.drill.exec.planner.index.generators

Class CoveringIndexPlanGenerator

java.lang.Object

org.apache.drill.exec.planner.physical.SubsetTransformer<org.apache.calcite.rel.RelNode,org.apache.calcite.rel.InvalidRelException>

org.apache.drill.exec.planner.index.generators.AbstractIndexPlanGenerator

org.apache.drill.exec.planner.index.generators.CoveringIndexPlanGenerator

public class CoveringIndexPlanGenerator
extends AbstractIndexPlanGenerator

Generate a covering index plan that is equivalent to the original plan. This plan will be further optimized by the filter pushdown rule of the Index plugin which should push this filter into the index scan.

Field Summary

Fields

Modifier and Type	Field	Description
protected final FunctionalIndexInfo	functionInfo
protected final IndexDescriptor	indexDesc
protected final IndexGroupScan	indexGroupScan

Fields inherited from class org.apache.drill.exec.planner.index.generators.AbstractIndexPlanGenerator

builder, indexCondition, indexContext, origProject, origScan, remainderCondition, settings, upperProject

Constructor Summary

Constructors

Constructor	Description
CoveringIndexPlanGenerator(IndexLogicalPlanCallContext indexContext, FunctionalIndexInfo functionInfo, IndexGroupScan indexGroupScan, org.apache.calcite.rex.RexNode indexCondition, org.apache.calcite.rex.RexNode remainderCondition, org.apache.calcite.rex.RexBuilder builder, PlannerSettings settings)

Method Summary

Modifier and Type	Method	Description
org.apache.calcite.rel.RelNode	convertChild(org.apache.calcite.rel.RelNode filter, org.apache.calcite.rel.RelNode input)

Methods inherited from class org.apache.drill.exec.planner.index.generators.AbstractIndexPlanGenerator

checkRowKey, convertRowType, createRangeDistRight, forceConvert, getExchange, getRowKeyIndex, getSortNode, go, newTraitSet, toRemoveSort

Methods inherited from class org.apache.drill.exec.planner.physical.SubsetTransformer

go

Methods inherited from class java.lang.Object

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

Field Details

indexGroupScan

protected final IndexGroupScan indexGroupScan

indexDesc

protected final IndexDescriptor indexDesc

functionInfo

protected final FunctionalIndexInfo functionInfo

Constructor Details

CoveringIndexPlanGenerator

public CoveringIndexPlanGenerator(IndexLogicalPlanCallContext indexContext,
 FunctionalIndexInfo functionInfo,
 IndexGroupScan indexGroupScan,
 org.apache.calcite.rex.RexNode indexCondition,
 org.apache.calcite.rex.RexNode remainderCondition,
 org.apache.calcite.rex.RexBuilder builder,
 PlannerSettings settings)

Method Details

convertChild

public org.apache.calcite.rel.RelNode convertChild(org.apache.calcite.rel.RelNode filter,
 org.apache.calcite.rel.RelNode input)
                                            throws org.apache.calcite.rel.InvalidRelException

Specified by:

convertChild in class AbstractIndexPlanGenerator

Throws:

org.apache.calcite.rel.InvalidRelException