Package org.apache.calcite.adapter.pig

Class PigAggregate

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Aggregate

org.apache.calcite.adapter.pig.PigAggregate

All Implemented Interfaces:

Cloneable, PigRel, RelOptNode, Hintable, RelNode

public class PigAggregate
extends Aggregate
implements PigRel

Implementation of Aggregate in Pig calling convention.

Nested Class Summary

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

Aggregate.AggCallBinding, Aggregate.Group, Aggregate.PercentileDiscAggCallBinding

Nested classes/interfaces inherited from interface org.apache.calcite.adapter.pig.PigRel

PigRel.Implementor

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

RelNode.Context

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DISTINCT_FIELD_SUFFIX

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.calcite.adapter.pig.PigRel

CONVENTION

Constructor Summary

Constructors

Constructor	Description
PigAggregate(RelOptCluster cluster, RelTraitSet traitSet, RelNode input, boolean indicator, ImmutableBitSet groupSet, List<ImmutableBitSet> groupSets, List<AggregateCall> aggCalls)	Deprecated.
PigAggregate(RelOptCluster cluster, RelTraitSet traitSet, RelNode input, ImmutableBitSet groupSet, List<ImmutableBitSet> groupSets, List<AggregateCall> aggCalls)	Creates a PigAggregate.

Method Summary

Modifier and Type	Method	Description
Aggregate	copy(RelTraitSet traitSet, RelNode input, ImmutableBitSet groupSet, List<ImmutableBitSet> groupSets, List<AggregateCall> aggCalls)	Creates a copy of this aggregate.
RelOptTable	getTable()	Override this method so it looks down the tree to find the table this node is acting on.
void	implement(PigRel.Implementor implementor)	Converts this node to a Pig Latin statement.

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

checkIndicator, computeSelfCost, containsDistinctCall, copy, copy, deriveRowType, deriveRowType, estimateRowCount, 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, 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 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, getVariablesSet, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput, stripped

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

getCluster, getDescription, getId, getTraitSet

Field Details

DISTINCT_FIELD_SUFFIX

public static final String DISTINCT_FIELD_SUFFIX

See Also:

• Constant Field Values

Constructor Details

PigAggregate

public PigAggregate(RelOptCluster cluster,
 RelTraitSet traitSet,
 RelNode input,
 ImmutableBitSet groupSet,
 List<ImmutableBitSet> groupSets,
 List<AggregateCall> aggCalls)

Creates a PigAggregate.

PigAggregate

@Deprecated
public PigAggregate(RelOptCluster cluster,
 RelTraitSet traitSet,
 RelNode input,
 boolean indicator,
 ImmutableBitSet groupSet,
 List<ImmutableBitSet> groupSets,
 List<AggregateCall> aggCalls)

Deprecated.

Method Details

copy

public Aggregate copy(RelTraitSet traitSet,
 RelNode input,
 ImmutableBitSet groupSet,
 List<ImmutableBitSet> groupSets,
 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

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 void implement(PigRel.Implementor implementor)

Description copied from interface: PigRel

Converts this node to a Pig Latin statement.

Specified by:

implement in interface PigRel

getTable

public RelOptTable getTable()

Override this method so it looks down the tree to find the table this node is acting on.

Specified by:

getTable in interface RelNode

Overrides:

getTable in class AbstractRelNode

Returns:

If this relational expression represents an access to a table, returns that table, otherwise returns null