SYNOPSIS
DROP AGGREGATE [ IF EXISTS ] name ( argtype [ , ... ] ) [ CASCADE | RESTRICT ]
DESCRIPTION
-
Note
The following description applies both to Postgres-XC and PostgreSQL if not described explicitly.
DROP AGGREGATE removes an existing aggregate function. To execute this command the current user must be the owner of the aggregate function.
PARAMETERS
-
Note
The following description applies both to Postgres-XC and PostgreSQL if not described explicitly.
IF EXISTS
- Do not throw an error if the aggregate does not exist. A notice is issued in this case.
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.
CASCADE
- Automatically drop objects that depend on the aggregate function.
RESTRICT
- Refuse to drop the aggregate function if any objects depend on it. This is the default.
EXAMPLES
-
Note
The following description applies both to Postgres-XC and PostgreSQL if not described explicitly.
To remove the aggregate function myavg for type integer:
-
DROP AGGREGATE myavg(integer);
COMPATIBILITY
There is no DROP AGGREGATE statement in the SQL standard.