Package org.apache.drill.exec.planner.physical

Class AggPrelBase

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Aggregate

org.apache.drill.exec.planner.common.DrillAggregateRelBase

org.apache.drill.exec.planner.physical.AggPrelBase

All Implemented Interfaces:

Cloneable, Iterable<Prel>, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.hint.Hintable, org.apache.calcite.rel.RelNode, DrillRelNode, Prel

Direct Known Subclasses:

HashAggPrel, StreamAggPrel

public abstract class AggPrelBase
extends DrillAggregateRelBase
implements Prel

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	AggPrelBase.OperatorPhase
static class	AggPrelBase.SqlSumCountAggFunction	Specialized aggregate function for SUMing the COUNTs.

Nested classes/interfaces inherited from class org.apache.calcite.rel.core.Aggregate

org.apache.calcite.rel.core.Aggregate.AggCallBinding, org.apache.calcite.rel.core.Aggregate.Group, org.apache.calcite.rel.core.Aggregate.PercentileDiscAggCallBinding

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

org.apache.calcite.rel.RelNode.Context

Field Summary

Fields

Modifier and Type	Field	Description
protected List<NamedExpression>	aggExprs
protected List<NamedExpression>	keys
protected AggPrelBase.OperatorPhase	operPhase
protected List<org.apache.calcite.rel.core.AggregateCall>	phase2AggCallList

Fields inherited from class org.apache.calcite.rel.core.Aggregate

aggCalls, groupSet, groupSets, hints, indicator, IS_NOT_GRAND_TOTAL, IS_SIMPLE, NO_INDICATOR

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

input

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

digest, id, rowType, traitSet

Fields inherited from interface org.apache.drill.exec.planner.physical.Prel

DRILL_PHYSICAL

Constructor Summary

Constructors

Constructor	Description
AggPrelBase(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, org.apache.calcite.rel.RelNode child, org.apache.calcite.util.ImmutableBitSet groupSet, List<org.apache.calcite.util.ImmutableBitSet> groupSets, List<org.apache.calcite.rel.core.AggregateCall> aggCalls, AggPrelBase.OperatorPhase phase)

Method Summary

Modifier and Type	Method	Description
<T, X, E extends Throwable> T	accept(PrelVisitor<T,X,E> logicalVisitor, X value)
protected void	createKeysAndExprs()
List<NamedExpression>	getAggExprs()
List<NamedExpression>	getKeys()
AggPrelBase.OperatorPhase	getOperatorPhase()
List<org.apache.calcite.rel.core.AggregateCall>	getPhase2AggCalls()
Iterator<Prel>	iterator()
boolean	needsFinalColumnReordering()
Prel	prepareForLateralUnnestPipeline(List<org.apache.calcite.rel.RelNode> children)	If the operator is in Lateral/Unnest pipeline, then it generates a new operator which knows how to process the rows accordingly during execution.
protected LogicalExpression	toDrill(org.apache.calcite.rel.core.AggregateCall call, List<String> fn)

Methods inherited from class org.apache.drill.exec.planner.common.DrillAggregateRelBase

computeHashAggCost, computeLogicalAggCost, estimateRowCount

Methods inherited from class org.apache.calcite.rel.core.Aggregate

checkIndicator, computeSelfCost, containsDistinctCall, copy, copy, copy, deriveRowType, deriveRowType, explainTerms, getAggCallList, getGroupCount, getGroupSet, getGroupSets, getGroupType, getHints, getIndicatorCount, getNamedAggCalls, isNotGrandTotal, isSimple, isValid, noIndicator

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

childrenAccept, 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, metadata, onRegister, recomputeDigest, register, sole, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.calcite.rel.hint.Hintable

attachHints, withHints

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface org.apache.drill.exec.planner.physical.Prel

getEncoding, getPhysicalOperator, getSupportedEncodings

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

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, copy, 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

Field Details

operPhase

protected AggPrelBase.OperatorPhase operPhase

keys

protected List<NamedExpression> keys

aggExprs

protected List<NamedExpression> aggExprs

phase2AggCallList

protected List<org.apache.calcite.rel.core.AggregateCall> phase2AggCallList

Constructor Details

AggPrelBase

public AggPrelBase(org.apache.calcite.plan.RelOptCluster cluster,
 org.apache.calcite.plan.RelTraitSet traits,
 org.apache.calcite.rel.RelNode child,
 org.apache.calcite.util.ImmutableBitSet groupSet,
 List<org.apache.calcite.util.ImmutableBitSet> groupSets,
 List<org.apache.calcite.rel.core.AggregateCall> aggCalls,
 AggPrelBase.OperatorPhase phase)
            throws org.apache.calcite.rel.InvalidRelException

Throws:

org.apache.calcite.rel.InvalidRelException

Method Details

getOperatorPhase

public AggPrelBase.OperatorPhase getOperatorPhase()

getKeys

public List<NamedExpression> getKeys()

getAggExprs

public List<NamedExpression> getAggExprs()

getPhase2AggCalls

public List<org.apache.calcite.rel.core.AggregateCall> getPhase2AggCalls()

createKeysAndExprs

protected void createKeysAndExprs()

toDrill

protected LogicalExpression toDrill(org.apache.calcite.rel.core.AggregateCall call,
 List<String> fn)

iterator

public Iterator<Prel> iterator()

Specified by:

iterator in interface Iterable<Prel>

accept

public <T,
X,
E extends Throwable> T accept(PrelVisitor<T,X,E> logicalVisitor,
 X value)
                                   throws E

Specified by:

accept in interface Prel

Throws:

E extends Throwable

needsFinalColumnReordering

public boolean needsFinalColumnReordering()

Specified by:

needsFinalColumnReordering in interface Prel

prepareForLateralUnnestPipeline

public Prel prepareForLateralUnnestPipeline(List<org.apache.calcite.rel.RelNode> children)

Description copied from interface: Prel

If the operator is in Lateral/Unnest pipeline, then it generates a new operator which knows how to process the rows accordingly during execution. eg: TopNPrel -> SortPrel and LimitPrel Other operators like FilterPrel, ProjectPrel etc will add an implicit row id to the output.

Specified by:

prepareForLateralUnnestPipeline in interface Prel