org.apache.calcite.rel.core

Class AggregateCall

java.lang.Object

org.apache.calcite.rel.core.AggregateCall

public class AggregateCall
extends Object

Call to an aggregate function within an Aggregate.

Field Summary

Fields

Modifier and Type	Field and Description
RelCollation	collation
int	filterArg
String	name
RelDataType	type

Constructor Summary

Constructors

Constructor and Description
AggregateCall(SqlAggFunction aggFunction, boolean distinct, List<Integer> argList, RelDataType type, String name) Deprecated.

Method Summary

Modifier and Type	Method and Description
AggregateCall	adaptTo(RelNode input, List<Integer> argList, int filterArg, int oldGroupKeyCount, int newGroupKeyCount) Creates an equivalent AggregateCall that is adapted to a new input types and/or number of columns in GROUP BY.
AggregateCall	copy(List<Integer> args) Deprecated.
AggregateCall	copy(List<Integer> args, int filterArg) Deprecated.
AggregateCall	copy(List<Integer> args, int filterArg, RelCollation collation) Creates an equivalent AggregateCall with new argument ordinals.
static AggregateCall	create(SqlAggFunction aggFunction, boolean distinct, boolean approximate, boolean ignoreNulls, List<Integer> argList, int filterArg, RelCollation collation, int groupCount, RelNode input, RelDataType type, String name) Creates an AggregateCall, inferring its type if type is null.
static AggregateCall	create(SqlAggFunction aggFunction, boolean distinct, boolean approximate, boolean ignoreNulls, List<Integer> argList, int filterArg, RelCollation collation, RelDataType type, String name) Creates an AggregateCall.
static AggregateCall	create(SqlAggFunction aggFunction, boolean distinct, boolean approximate, List<Integer> argList, int filterArg, int groupCount, RelNode input, RelDataType type, String name) Deprecated.
static AggregateCall	create(SqlAggFunction aggFunction, boolean distinct, boolean approximate, List<Integer> argList, int filterArg, RelCollation collation, int groupCount, RelNode input, RelDataType type, String name) Deprecated.
static AggregateCall	create(SqlAggFunction aggFunction, boolean distinct, boolean approximate, List<Integer> argList, int filterArg, RelCollation collation, RelDataType type, String name) Deprecated.
static AggregateCall	create(SqlAggFunction aggFunction, boolean distinct, boolean approximate, List<Integer> argList, int filterArg, RelDataType type, String name) Deprecated.
static AggregateCall	create(SqlAggFunction aggFunction, boolean distinct, List<Integer> argList, int filterArg, int groupCount, RelNode input, RelDataType type, String name) Deprecated.
static AggregateCall	create(SqlAggFunction aggFunction, boolean distinct, List<Integer> argList, int filterArg, RelDataType type, String name) Deprecated.
static AggregateCall	create(SqlAggFunction aggFunction, boolean distinct, List<Integer> argList, int groupCount, RelNode input, RelDataType type, String name) Deprecated.
Aggregate.AggCallBinding	createBinding(Aggregate aggregateRelBase) Creates a binding of this call in the context of an LogicalAggregate, which can then be used to infer the return type.
boolean	equals(Object o)
SqlAggFunction	getAggregation() Returns the aggregate function.
List<Integer>	getArgList() Returns the ordinals of the arguments to this call.
RelCollation	getCollation() Returns the aggregate ordering definition (the WITHIN GROUP clause in SQL), or the empty list if not specified.
String	getName() Returns the name.
RelDataType	getType() Returns the result type.
boolean	hasFilter() Returns whether this AggregateCall has a filter argument.
int	hashCode()
boolean	ignoreNulls() Returns whether this AggregateCall ignores nulls.
boolean	isApproximate() Returns whether this AggregateCall is approximate, as in APPROX_COUNT_DISTINCT(empno).
boolean	isDistinct() Returns whether this AggregateCall is distinct, as in COUNT(DISTINCT empno).
AggregateCall	rename(String name) Creates an equivalent AggregateCall that has a new name.
String	toString()
AggregateCall	transform(Mappings.TargetMapping mapping) Creates a copy of this aggregate call, applying a mapping to its arguments.

Methods inherited from class java.lang.Object

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

Field Detail

type

public final RelDataType type

name

public final String name

filterArg

public final int filterArg

collation

public final RelCollation collation

Constructor Detail

AggregateCall

@Deprecated
public AggregateCall(SqlAggFunction aggFunction,
                                 boolean distinct,
                                 List<Integer> argList,
                                 RelDataType type,
                                 String name)

Deprecated.

Creates an AggregateCall.

Parameters:

aggFunction - Aggregate function

distinct - Whether distinct

argList - List of ordinals of arguments

type - Result type

name - Name (may be null)

Method Detail

create

@Deprecated
public static AggregateCall create(SqlAggFunction aggFunction,
                                               boolean distinct,
                                               List<Integer> argList,
                                               int groupCount,
                                               RelNode input,
                                               RelDataType type,
                                               String name)

Deprecated.

create

@Deprecated
public static AggregateCall create(SqlAggFunction aggFunction,
                                               boolean distinct,
                                               List<Integer> argList,
                                               int filterArg,
                                               int groupCount,
                                               RelNode input,
                                               RelDataType type,
                                               String name)

Deprecated.

create

@Deprecated
public static AggregateCall create(SqlAggFunction aggFunction,
                                               boolean distinct,
                                               boolean approximate,
                                               List<Integer> argList,
                                               int filterArg,
                                               int groupCount,
                                               RelNode input,
                                               RelDataType type,
                                               String name)

Deprecated.

create

@Deprecated
public static AggregateCall create(SqlAggFunction aggFunction,
                                               boolean distinct,
                                               boolean approximate,
                                               List<Integer> argList,
                                               int filterArg,
                                               RelCollation collation,
                                               int groupCount,
                                               RelNode input,
                                               RelDataType type,
                                               String name)

Deprecated.

create

public static AggregateCall create(SqlAggFunction aggFunction,
                                   boolean distinct,
                                   boolean approximate,
                                   boolean ignoreNulls,
                                   List<Integer> argList,
                                   int filterArg,
                                   RelCollation collation,
                                   int groupCount,
                                   RelNode input,
                                   RelDataType type,
                                   String name)

Creates an AggregateCall, inferring its type if type is null.

create

@Deprecated
public static AggregateCall create(SqlAggFunction aggFunction,
                                               boolean distinct,
                                               List<Integer> argList,
                                               int filterArg,
                                               RelDataType type,
                                               String name)

Deprecated.

create

@Deprecated
public static AggregateCall create(SqlAggFunction aggFunction,
                                               boolean distinct,
                                               boolean approximate,
                                               List<Integer> argList,
                                               int filterArg,
                                               RelDataType type,
                                               String name)

Deprecated.

create

@Deprecated
public static AggregateCall create(SqlAggFunction aggFunction,
                                               boolean distinct,
                                               boolean approximate,
                                               List<Integer> argList,
                                               int filterArg,
                                               RelCollation collation,
                                               RelDataType type,
                                               String name)

Deprecated.

create

public static AggregateCall create(SqlAggFunction aggFunction,
                                   boolean distinct,
                                   boolean approximate,
                                   boolean ignoreNulls,
                                   List<Integer> argList,
                                   int filterArg,
                                   RelCollation collation,
                                   RelDataType type,
                                   String name)

Creates an AggregateCall.

isDistinct

public final boolean isDistinct()

Returns whether this AggregateCall is distinct, as in COUNT(DISTINCT empno).

Returns:

whether distinct

isApproximate

public final boolean isApproximate()

Returns whether this AggregateCall is approximate, as in APPROX_COUNT_DISTINCT(empno).

Returns:

whether approximate

ignoreNulls

public final boolean ignoreNulls()

Returns whether this AggregateCall ignores nulls.

Returns:

whether ignore nulls

getAggregation

public final SqlAggFunction getAggregation()

Returns the aggregate function.

Returns:

aggregate function

getCollation

public RelCollation getCollation()

Returns the aggregate ordering definition (the WITHIN GROUP clause in SQL), or the empty list if not specified.

Returns:

ordering definition

getArgList

public final List<Integer> getArgList()

Returns the ordinals of the arguments to this call.

The list is immutable.

Returns:

list of argument ordinals

getType

public final RelDataType getType()

Returns the result type.

Returns:

result type

getName

public String getName()

Returns the name.

Returns:

name

rename

public AggregateCall rename(String name)

Creates an equivalent AggregateCall that has a new name.

Parameters:

name - New name (may be null)

toString

public String toString()

Overrides:

toString in class Object

hasFilter

public boolean hasFilter()

Returns whether this AggregateCall has a filter argument.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

createBinding

public Aggregate.AggCallBinding createBinding(Aggregate aggregateRelBase)

Creates a binding of this call in the context of an LogicalAggregate, which can then be used to infer the return type.

copy

public AggregateCall copy(List<Integer> args,
                          int filterArg,
                          RelCollation collation)

Creates an equivalent AggregateCall with new argument ordinals.

Parameters:

args - Arguments

Returns:

AggregateCall that suits new inputs and GROUP BY columns

See Also:

transform(Mappings.TargetMapping)

copy

@Deprecated
public AggregateCall copy(List<Integer> args,
                                      int filterArg)

Deprecated.

copy

@Deprecated
public AggregateCall copy(List<Integer> args)

Deprecated.

adaptTo

public AggregateCall adaptTo(RelNode input,
                             List<Integer> argList,
                             int filterArg,
                             int oldGroupKeyCount,
                             int newGroupKeyCount)

Creates an equivalent AggregateCall that is adapted to a new input types and/or number of columns in GROUP BY.

Parameters:

input - Relation that will be input of Aggregate

argList - Argument indices of the new call in the input

filterArg - Index of the filter, or -1

oldGroupKeyCount - number of columns in GROUP BY of old aggregate

newGroupKeyCount - number of columns in GROUP BY of new aggregate

Returns:

AggregateCall that suits new inputs and GROUP BY columns

transform

public AggregateCall transform(Mappings.TargetMapping mapping)

Creates a copy of this aggregate call, applying a mapping to its arguments.