NAME

       ALTER_PROCEDURE - change the definition of a procedure

SYNOPSIS

       ALTER PROCEDURE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ]
           action [ ... ] [ RESTRICT ]
       ALTER PROCEDURE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ]
           RENAME TO new_name
       ALTER PROCEDURE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ]
           OWNER TO { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER }
       ALTER PROCEDURE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ]
           SET SCHEMA new_schema
       ALTER PROCEDURE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ]
           [ NO ] DEPENDS ON EXTENSION extension_name

       where action is one of:

           [ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER
           SET configuration_parameter { TO | = } { value | DEFAULT }
           SET configuration_parameter FROM CURRENT
           RESET configuration_parameter
           RESET ALL

DESCRIPTION

       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 be able to
       SET ROLE to 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.)

PARAMETERS

       name
           The 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, OUT, INOUT, 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 used to determine the
           procedure's identity.

       argtype
           The data type(s) of the procedure's arguments (optionally schema-qualified), if any.
           See DROP PROCEDURE (DROP_PROCEDURE(7)) for the details of how the procedure is looked
           up using the argument data type(s).

       new_name
           The 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_schema
           The new schema for the procedure.

       extension_name
           This form marks the procedure as dependent on the extension, or no longer dependent on
           the extension if NO is specified. A procedure that's marked as dependent on an
           extension is dropped when the extension is dropped, even if cascade is not specified.
           A procedure can depend upon multiple extensions, and will be dropped when any one of
           those extensions is dropped.

       [ 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 (CREATE_PROCEDURE(7)) for more
           information about this capability.

       configuration_parameter
       value
           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(7) and Chapter 19 for more information about allowed parameter names and
           values.

       RESTRICT
           Ignored for conformance with the SQL standard.

EXAMPLES

       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.

COMPATIBILITY

       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.

SEE ALSO

       CREATE PROCEDURE (CREATE_PROCEDURE(7)), DROP PROCEDURE (DROP_PROCEDURE(7)), ALTER FUNCTION
       (ALTER_FUNCTION(7)), ALTER ROUTINE (ALTER_ROUTINE(7))