ALTER ROUTINE ALTER ROUTINE 7 SQL - Language Statements ALTER ROUTINE change the definition of a routine ALTER ROUTINE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ] action [ ... ] [ RESTRICT ] ALTER ROUTINE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ] RENAME TO new_name ALTER ROUTINE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ] OWNER TO { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER } ALTER ROUTINE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ] SET SCHEMA new_schema ALTER ROUTINE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ] [ NO ] DEPENDS ON EXTENSION extension_name where action is one of: IMMUTABLE | STABLE | VOLATILE [ NOT ] LEAKPROOF [ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER PARALLEL { UNSAFE | RESTRICTED | SAFE } COST execution_cost ROWS result_rows SET configuration_parameter { TO | = } { value | DEFAULT } SET configuration_parameter FROM CURRENT RESET configuration_parameter RESET ALL ALTER ROUTINE changes the definition of a routine, which can be an aggregate function, a normal function, or a procedure. See under , , and for the description of the parameters, more examples, and further details. To rename the routine foo for type integer to foobar: ALTER ROUTINE foo(integer) RENAME TO foobar; This command will work independent of whether foo is an aggregate, function, or procedure. This statement is partially compatible with the ALTER ROUTINE statement in the SQL standard. See under and for more details. Allowing routine names to refer to aggregate functions is a PostgreSQL extension. Note that there is no CREATE ROUTINE command.