Package org.apache.calcite.adapter.enumerable

Class EnumerableAggregate

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Aggregate

org.apache.calcite.adapter.enumerable.EnumerableAggregate

All Implemented Interfaces:

java.lang.Cloneable, EnumerableRel, RelOptNode, RelNode

public class EnumerableAggregate
extends Aggregate
implements EnumerableRel

Implementation of Aggregate in enumerable calling convention.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	EnumerableAggregate.AggContextImpl	An implementation of AggContext.

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

Aggregate.AggCallBinding, Aggregate.Group

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

EnumerableRel.Prefer, EnumerableRel.Result

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

RelNode.Context

Field Summary

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

aggCalls, groupSet, groupSets, 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.calcite.adapter.enumerable.EnumerableRel

FILTER_FACTORY, PROJECT_FACTORY

Constructor Summary

Constructors

Constructor	Description
EnumerableAggregate(RelOptCluster cluster, RelTraitSet traitSet, RelNode child, boolean indicator, ImmutableBitSet groupSet, java.util.List<ImmutableBitSet> groupSets, java.util.List<AggregateCall> aggCalls)

Method Summary

Modifier and Type	Method	Description
EnumerableAggregate	copy(RelTraitSet traitSet, RelNode input, boolean indicator, ImmutableBitSet groupSet, java.util.List<ImmutableBitSet> groupSets, java.util.List<AggregateCall> aggCalls)	Creates a copy of this aggregate.
private void	declareParentAccumulator(java.util.List<Expression> initExpressions, BlockBuilder initBlock, PhysType accPhysType)
private static boolean	hasOrderedCall(java.util.List<AggImpState> aggs)
EnumerableRel.Result	implement(EnumerableRelImplementor implementor, EnumerableRel.Prefer pref)	Creates a plan for this expression according to a calling convention.
private void	implementLambdaFactory(BlockBuilder builder, PhysType inputPhysType, java.util.List<AggImpState> aggs, Expression accumulatorInitializer, boolean hasOrderedCall, ParameterExpression lambdaFactory)	Implements the AggregateLambdaFactory.

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

computeSelfCost, containsDistinctCall, copy, deriveRowType, deriveRowType, estimateRowCount, explainTerms, getAggCallList, getGroupCount, getGroupSet, getGroupSets, getGroupType, 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, computeDigest, computeSelfCost, explain, getChildExps, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getQuery, getRelTypeName, getRows, getRowType, getTable, getTraitSet, getVariablesSet, getVariablesStopped, isDistinct, isKey, isValid, metadata, onRegister, recomputeDigest, register, sole, toString

Methods inherited from class java.lang.Object

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

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

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, computeSelfCost, copy, estimateRowCount, explain, getChildExps, getCollationList, getConvention, getCorrelVariable, getExpectedInputRowType, getInput, getInputs, getQuery, getRelTypeName, getRows, getRowType, getTable, getVariablesSet, getVariablesStopped, isDistinct, isKey, isValid, isValid, metadata, onRegister, recomputeDigest, register, replaceInput

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

getCluster, getDescription, getDigest, getId, getTraitSet

Constructor Detail

EnumerableAggregate

public EnumerableAggregate(RelOptCluster cluster,
                           RelTraitSet traitSet,
                           RelNode child,
                           boolean indicator,
                           ImmutableBitSet groupSet,
                           java.util.List<ImmutableBitSet> groupSets,
                           java.util.List<AggregateCall> aggCalls)
                    throws InvalidRelException

Throws:

InvalidRelException

Method Detail

copy

public EnumerableAggregate copy(RelTraitSet traitSet,
                                RelNode input,
                                boolean indicator,
                                ImmutableBitSet groupSet,
                                java.util.List<ImmutableBitSet> groupSets,
                                java.util.List<AggregateCall> aggCalls)

Description copied from class: Aggregate

Creates a copy of this aggregate.

Specified by:

copy in class Aggregate

Parameters:

traitSet - Traits

input - Input

indicator - Whether row type should include indicator fields to indicate which grouping set is active; must be true if aggregate is not simple

groupSet - Bit set of grouping fields

groupSets - List of all grouping sets; null for just groupSet

aggCalls - Collection of calls to aggregate functions

Returns:

New Aggregate if any parameter differs from the value of this Aggregate, or just this if all the parameters are the same

See Also:

Aggregate.copy(org.apache.calcite.plan.RelTraitSet, java.util.List)

implement

public EnumerableRel.Result implement(EnumerableRelImplementor implementor,
                                      EnumerableRel.Prefer pref)

Description copied from interface: EnumerableRel

Creates a plan for this expression according to a calling convention.

Specified by:

implement in interface EnumerableRel

Parameters:

implementor - Implementor

pref - Preferred representation for rows in result expression

Returns:

Plan for this expression according to a calling convention

hasOrderedCall

private static boolean hasOrderedCall(java.util.List<AggImpState> aggs)

declareParentAccumulator

private void declareParentAccumulator(java.util.List<Expression> initExpressions,
                                      BlockBuilder initBlock,
                                      PhysType accPhysType)

implementLambdaFactory

private void implementLambdaFactory(BlockBuilder builder,
                                    PhysType inputPhysType,
                                    java.util.List<AggImpState> aggs,
                                    Expression accumulatorInitializer,
                                    boolean hasOrderedCall,
                                    ParameterExpression lambdaFactory)

Implements the AggregateLambdaFactory.

Behavior depends upon ordering:

• hasOrderedCall == true means there is at least one aggregate call including sort spec. We use OrderedAggregateLambdaFactory implementation to implement sorted aggregates for that.
• hasOrderedCall == false indicates to use SequencedAdderAggregateLambdaFactory to implement a non-sort aggregate.