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NAMEALTER_PROCEDURE - change the definition of a procedure SYNOPSISALTER PROCEDURE name [ ( [ [ argmode ] [ argname ] argtype [, ...] ] ) ] DESCRIPTIONALTER 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.) PARAMETERSname 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
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
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.
EXAMPLESTo 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. COMPATIBILITYThis 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 ALSOCREATE PROCEDURE (CREATE_PROCEDURE(7)), DROP PROCEDURE (DROP_PROCEDURE(7)), ALTER FUNCTION (ALTER_FUNCTION(7)), ALTER ROUTINE (ALTER_ROUTINE(7))
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