ALTER PROCEDURE — change the definition of a procedure
ALTER PROCEDUREname[ ( [ [argmode] [argname]argtype[, ...] ] ) ]action[ ... ] [ RESTRICT ] ALTER PROCEDUREname[ ( [ [argmode] [argname]argtype[, ...] ] ) ] RENAME TOnew_nameALTER PROCEDUREname[ ( [ [argmode] [argname]argtype[, ...] ] ) ] OWNER TO {new_owner| CURRENT_USER | SESSION_USER } ALTER PROCEDUREname[ ( [ [argmode] [argname]argtype[, ...] ] ) ] SET SCHEMAnew_schemaALTER PROCEDUREname[ ( [ [argmode] [argname]argtype[, ...] ] ) ] DEPENDS ON EXTENSIONextension_namewhereactionis one of: [ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER SETconfiguration_parameter{ TO | = } {value| DEFAULT } SETconfiguration_parameterFROM CURRENT RESETconfiguration_parameterRESET ALL
ALTER PROCEDURE changes the definition of a
procedure.
You must own the procedure to use ALTER PROCEDURE.
To change a procedure's schema, 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 procedure's schema. (These restrictions enforce that altering the owner
doesn't do anything you couldn't do by dropping and recreating the procedure.
However, a superuser can alter ownership of any procedure anyway.)
nameThe name (optionally schema-qualified) of an existing procedure. If no argument list is specified, the name must be unique in its schema.
argmode
The mode of an argument: IN or VARIADIC.
If omitted, the default is IN.
argname
The name of an argument.
Note that ALTER PROCEDURE does not actually pay
any attention to argument names, since only the argument data
types are needed to determine the procedure's identity.
argtypeThe data type(s) of the procedure's arguments (optionally schema-qualified), if any.
new_nameThe new name of the procedure.
new_owner
The new owner of the procedure. Note that if the procedure is
marked SECURITY DEFINER, it will subsequently
execute as the new owner.
new_schemaThe new schema for the procedure.
extension_nameThe name of the extension that the procedure is to depend on.
[ EXTERNAL ] SECURITY INVOKER[ EXTERNAL ] SECURITY DEFINER
Change whether the procedure is a security definer or not. The
key word EXTERNAL is ignored for SQL
conformance. See CREATE PROCEDURE for more information about
this capability.
configuration_parametervalue
Add or change the assignment to be made to a configuration parameter
when the procedure is called. If
value is DEFAULT
or, equivalently, RESET is used, the procedure-local
setting is removed, so that the procedure executes with the value
present in its environment. Use RESET
ALL to clear all procedure-local settings.
SET FROM CURRENT saves the value of the parameter that
is current when ALTER PROCEDURE is executed as the value
to be applied when the procedure is entered.
See SET and Chapter 19 for more information about allowed parameter names and values.
RESTRICTIgnored for conformance with the SQL standard.
To rename the procedure insert_data with two arguments
of type integer to insert_record:
ALTER PROCEDURE insert_data(integer, integer) RENAME TO insert_record;
To change the owner of the procedure insert_data with
two arguments of type integer to joe:
ALTER PROCEDURE insert_data(integer, integer) OWNER TO joe;
To change the schema of the procedure insert_data with
two arguments of type integer
to accounting:
ALTER PROCEDURE insert_data(integer, integer) SET SCHEMA accounting;
To mark the procedure insert_data(integer, integer) as
being dependent on the extension myext:
ALTER PROCEDURE insert_data(integer, integer) DEPENDS ON EXTENSION myext;
To adjust the search path that is automatically set for a procedure:
ALTER PROCEDURE check_password(text) SET search_path = admin, pg_temp;
To disable automatic setting of search_path for a procedure:
ALTER PROCEDURE check_password(text) RESET search_path;
The procedure will now execute with whatever search path is used by its caller.
This statement is partially compatible with the ALTER
PROCEDURE statement in the SQL standard. The standard allows more
properties of a procedure to be modified, but does not provide the
ability to rename a procedure, make a procedure a security definer,
attach configuration parameter values to a procedure,
or change the owner, schema, or volatility of a procedure. The standard also
requires the RESTRICT key word, which is optional in
PostgreSQL.