DROP AGGREGATE 7 SQL - Language Statements DROP AGGREGATE remove an aggregate function DROP AGGREGATE DROP AGGREGATE [ IF EXISTS ] name ( [ argmode ] [ arg_name ] arg_data_type [ , ... ] ) [ CASCADE | RESTRICT ] DROP AGGREGATE removes an existing aggregate function. To execute this command the current user must be the owner of the aggregate function. 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. argmode The mode of an argument: IN or VARIADIC. If omitted, the default is IN. arg_name The name of an argument. Note that DROP AGGREGATE does not actually pay any attention to argument names, since only the argument data types are needed to determine the aggregate function's identity. arg_data_type An input data type on which the aggregate function operates. To reference a zero-argument aggregate function, write * in place of the list of argument specifications. 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. To remove the aggregate function myavg for type integer: DROP AGGREGATE myavg(integer); There is no DROP AGGREGATE statement in the SQL standard.