org.apache.kylin.query.relnode

Class OLAPAggregateRel

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Aggregate

org.apache.kylin.query.relnode.OLAPAggregateRel

All Implemented Interfaces:

Cloneable, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.RelNode, OLAPRel

public class OLAPAggregateRel
extends org.apache.calcite.rel.core.Aggregate
implements OLAPRel

Nested Class Summary

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

Nested classes/interfaces inherited from interface org.apache.kylin.query.relnode.OLAPRel

OLAPRel.JavaImplementor, OLAPRel.OLAPImplementor, OLAPRel.RewriteImplementor

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.core.Aggregate

aggCalls, groupSet, groupSets, indicator, IS_NOT_GRAND_TOTAL, IS_SIMPLE

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.kylin.query.relnode.OLAPRel

CONVENTION, logger

Constructor Summary

Constructors

Constructor and Description
OLAPAggregateRel(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traits, org.apache.calcite.rel.RelNode child, boolean indicator, org.apache.calcite.util.ImmutableBitSet groupSet, List<org.apache.calcite.util.ImmutableBitSet> groupSets, List<org.apache.calcite.rel.core.AggregateCall> aggCalls)

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.calcite.plan.RelOptCost	computeSelfCost(org.apache.calcite.plan.RelOptPlanner planner, org.apache.calcite.rel.metadata.RelMetadataQuery mq) Since the grouping aggregate will be expanded by AggregateMultipleExpandRule, made the cost of grouping aggregate more expensive to use the expanded aggregates
org.apache.calcite.rel.core.Aggregate	copy(org.apache.calcite.plan.RelTraitSet traitSet, org.apache.calcite.rel.RelNode input, boolean indicator, org.apache.calcite.util.ImmutableBitSet groupSet, List<org.apache.calcite.util.ImmutableBitSet> groupSets, List<org.apache.calcite.rel.core.AggregateCall> aggCalls)
org.apache.calcite.rel.RelWriter	explainTerms(org.apache.calcite.rel.RelWriter pw)
static String	getAggrFuncName(org.apache.calcite.rel.core.AggregateCall aggCall)
ColumnRowType	getColumnRowType() get the row type of ColumnDesc
OLAPContext	getContext() get olap context
List<org.apache.calcite.rel.core.AggregateCall>	getRewriteAggCalls()
boolean	hasSubQuery() whether has sub query
EnumerableRel	implementEnumerable(List<EnumerableRel> inputs)
void	implementOLAP(OLAPRel.OLAPImplementor implementor)
void	implementRewrite(OLAPRel.RewriteImplementor implementor)
boolean	needRewrite()
boolean	noPrecaculatedFieldsAvailable()
org.apache.calcite.plan.RelTraitSet	replaceTraitSet(org.apache.calcite.plan.RelTrait trait) replace RelTraitSet

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

containsDistinctCall, copy, deriveRowType, deriveRowType, estimateRowCount, getAggCallList, getGroupCount, getGroupSet, getGroupSets, getGroupType, getIndicatorCount, getNamedAggCalls, isValid

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, 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

OLAPAggregateRel

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

Throws:

org.apache.calcite.rel.InvalidRelException

Method Detail

getAggrFuncName

public static String getAggrFuncName(org.apache.calcite.rel.core.AggregateCall aggCall)

copy

public org.apache.calcite.rel.core.Aggregate copy(org.apache.calcite.plan.RelTraitSet traitSet,
                                         org.apache.calcite.rel.RelNode input,
                                         boolean indicator,
                                         org.apache.calcite.util.ImmutableBitSet groupSet,
                                         List<org.apache.calcite.util.ImmutableBitSet> groupSets,
                                         List<org.apache.calcite.rel.core.AggregateCall> aggCalls)

Specified by:

copy in class org.apache.calcite.rel.core.Aggregate

computeSelfCost

public org.apache.calcite.plan.RelOptCost computeSelfCost(org.apache.calcite.plan.RelOptPlanner planner,
                                                 org.apache.calcite.rel.metadata.RelMetadataQuery mq)

Since the grouping aggregate will be expanded by AggregateMultipleExpandRule, made the cost of grouping aggregate more expensive to use the expanded aggregates

Specified by:

computeSelfCost in interface org.apache.calcite.rel.RelNode

Overrides:

computeSelfCost in class org.apache.calcite.rel.core.Aggregate

implementOLAP

public void implementOLAP(OLAPRel.OLAPImplementor implementor)

Specified by:

implementOLAP in interface OLAPRel

needRewrite

public boolean needRewrite()

implementRewrite

public void implementRewrite(OLAPRel.RewriteImplementor implementor)

Specified by:

implementRewrite in interface OLAPRel

noPrecaculatedFieldsAvailable

public boolean noPrecaculatedFieldsAvailable()

implementEnumerable

public EnumerableRel implementEnumerable(List<EnumerableRel> inputs)

Specified by:

implementEnumerable in interface OLAPRel

getContext

public OLAPContext getContext()

Description copied from interface: OLAPRel

get olap context

Specified by:

getContext in interface OLAPRel

getColumnRowType

public ColumnRowType getColumnRowType()

Description copied from interface: OLAPRel

get the row type of ColumnDesc

Specified by:

getColumnRowType in interface OLAPRel

Returns:

hasSubQuery

public boolean hasSubQuery()

Description copied from interface: OLAPRel

whether has sub query

Specified by:

hasSubQuery in interface OLAPRel

replaceTraitSet

public org.apache.calcite.plan.RelTraitSet replaceTraitSet(org.apache.calcite.plan.RelTrait trait)

Description copied from interface: OLAPRel

replace RelTraitSet

Specified by:

replaceTraitSet in interface OLAPRel

getRewriteAggCalls

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

explainTerms

public org.apache.calcite.rel.RelWriter explainTerms(org.apache.calcite.rel.RelWriter pw)

Overrides:

explainTerms in class org.apache.calcite.rel.core.Aggregate