drop_aggregate(7) [redhat man page]

DROP 
AGGREGATE(7)						   SQL Commands 						 DROP AGGREGATE(7)

NAME

       DROP AGGREGATE - remove a user-defined aggregate function

SYNOPSIS

       DROP AGGREGATE name ( type ) [ CASCADE | RESTRICT ]

   INPUTS
       name   The name (optionally schema-qualified) of an existing aggregate function.

       type   The  input  data type of the aggregate function, or * if the function accepts any input type.  (Refer to the PostgreSQL User's Guide
	      for further information about data types.)  [Comment: This should become a cross-reference rather than a hard-coded chapter number]

       CASCADE
	      Automatically drop objects that depend on the aggregate.

       RESTRICT
	      Refuse to drop the aggregate if there are any dependent objects.	This is the default.

   OUTPUTS
       DROP AGGREGATE
	      Message returned if the command is successful.

       ERROR: RemoveAggregate: aggregate 'name' for type type does not exist
	      This message occurs if the aggregate function specified does not exist in the database.

DESCRIPTION

       DROP AGGREGATE will delete an existing aggregate definition. To execute this command the current user must be the owner of the aggregate.

   NOTES
       Use CREATE AGGREGATE [create_aggregate(7)] to create aggregate functions.

USAGE

       To remove the myavg aggregate for type int4:

       DROP AGGREGATE myavg(int4);

COMPATIBILITY

   SQL92
       There is no DROP AGGREGATE statement in SQL92; the statement is a PostgreSQL language extension.

SQL - Language Statements					    2002-11-22							 DROP AGGREGATE(7)

ALTER 
AGGREGATE(7)					  PostgreSQL 9.2.7 Documentation					ALTER AGGREGATE(7)

NAME

       ALTER_AGGREGATE - change the definition of an aggregate function

SYNOPSIS

       ALTER AGGREGATE name ( argtype [ , ... ] ) RENAME TO new_name
       ALTER AGGREGATE name ( argtype [ , ... ] ) OWNER TO new_owner
       ALTER AGGREGATE name ( argtype [ , ... ] ) SET SCHEMA new_schema

DESCRIPTION

       ALTER AGGREGATE changes the definition of an aggregate function.

       You must own the aggregate function to use ALTER AGGREGATE. To change the schema of an aggregate function, you must also have CREATE
       privilege on the new schema. To alter the owner, you must also be a direct or indirect member of the new owning role, and that role must
       have CREATE privilege on the aggregate function's schema. (These restrictions enforce that altering the owner doesn't do anything you
       couldn't do by dropping and recreating the aggregate function. However, a superuser can alter ownership of any aggregate function anyway.)

PARAMETERS

       name
	   The name (optionally schema-qualified) of an existing aggregate function.

       argtype
	   An input data type on which the aggregate function operates. To reference a zero-argument aggregate function, write * in place of the
	   list of input data types.

       new_name
	   The new name of the aggregate function.

       new_owner
	   The new owner of the aggregate function.

       new_schema
	   The new schema for the aggregate function.

EXAMPLES

       To rename the aggregate function myavg for type integer to my_average:

	   ALTER AGGREGATE myavg(integer) RENAME TO my_average;

       To change the owner of the aggregate function myavg for type integer to joe:

	   ALTER AGGREGATE myavg(integer) OWNER TO joe;

       To move the aggregate function myavg for type integer into schema myschema:

	   ALTER AGGREGATE myavg(integer) SET SCHEMA myschema;

COMPATIBILITY

       There is no ALTER AGGREGATE statement in the SQL standard.

SEE ALSO

       CREATE AGGREGATE (CREATE_AGGREGATE(7)), DROP AGGREGATE (DROP_AGGREGATE(7))

PostgreSQL 9.2.7						    2014-02-17							ALTER AGGREGATE(7)