alter_role man page on Mandriva

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ALTER ROLE(7)			 SQL Commands			 ALTER ROLE(7)

NAME
       ALTER ROLE - change a database role

SYNOPSIS
       ALTER ROLE name [ [ WITH ] option [ ... ] ]

       where option can be:

	     SUPERUSER | NOSUPERUSER
	   | CREATEDB | NOCREATEDB
	   | CREATEROLE | NOCREATEROLE
	   | CREATEUSER | NOCREATEUSER
	   | INHERIT | NOINHERIT
	   | LOGIN | NOLOGIN
	   | CONNECTION LIMIT connlimit
	   | [ ENCRYPTED | UNENCRYPTED ] PASSWORD 'password'
	   | VALID UNTIL 'timestamp'

       ALTER ROLE name RENAME TO newname

       ALTER ROLE name SET configuration_parameter { TO | = } { value | DEFAULT }
       ALTER ROLE name SET configuration_parameter FROM CURRENT
       ALTER ROLE name RESET configuration_parameter
       ALTER ROLE name RESET ALL

DESCRIPTION
       ALTER ROLE changes the attributes of a PostgreSQL role.

       The  first  variant  of	this command listed in the synopsis can change
       many of the role attributes that can be specified in CREATE ROLE	 [cre‐
       ate_role(7)].   (All  the  possible attributes are covered, except that
       there are no options for adding	or  removing  memberships;  use	 GRANT
       [grant(7)]  and REVOKE [revoke(7)] for that.)  Attributes not mentioned
       in the command retain their previous settings.  Database superusers can
       change  any  of	these  settings for any role.  Roles having CREATEROLE
       privilege can change any of these settings, but only for	 non-superuser
       roles.  Ordinary roles can only change their own password.

       The  second  variant changes the name of the role.  Database superusers
       can rename any role.  Roles having CREATEROLE privilege can rename non-
       superuser roles.	 The current session user cannot be renamed.  (Connect
       as a different user if you need to  do  that.)	Because	 MD5-encrypted
       passwords  use  the  role  name	as cryptographic salt, renaming a role
       clears its password if the password is MD5-encrypted.

       The remaining variants change a role's session default for a  specified
       configuration  variable.	 Whenever  the	role subsequently starts a new
       session, the specified value becomes the	 session  default,  overriding
       whatever	 setting  is  present  in postgresql.conf or has been received
       from the postgres command line. This only happens  at  login  time,  so
       configuration  settings associated with a role to which you've SET ROLE
       [set_role(7)] will be ignored.  Superusers can change anyone's  session
       defaults.  Roles	 having	 CREATEROLE  privilege can change defaults for
       non-superuser roles. Certain variables cannot be set this way,  or  can
       only be set if a superuser issues the command.

PARAMETERS
       name   The name of the role whose attributes are to be altered.

       SUPERUSER

       NOSUPERUSER

       CREATEDB

       NOCREATEDB

       CREATEROLE

       NOCREATEROLE

       CREATEUSER

       NOCREATEUSER

       INHERIT

       NOINHERIT

       LOGIN

       NOLOGIN

       CONNECTION LIMIT connlimit

       PASSWORD password

       ENCRYPTED

       UNENCRYPTED

       VALID UNTIL 'timestamp'
	      These  clauses  alter  attributes	 originally set by CREATE ROLE
	      [create_role(7)]. For more information, see the CREATE ROLE ref‐
	      erence page.

       newname
	      The new name of the role.

       configuration_parameter

       value  Set  this role's session default for the specified configuration
	      parameter to the given value. If value is	 DEFAULT  or,  equiva‐
	      lently,  RESET  is  used,	 the role-specific variable setting is
	      removed, so the role will inherit the system-wide	 default  set‐
	      ting  in	new sessions. Use RESET ALL to clear all role-specific
	      settings.	 SET FROM CURRENT saves the session's current value of
	      the parameter as the role-specific value.

	      Role-specific  variable  setting	take effect only at login; SET
	      ROLE [set_role(7)] does not process role-specific variable  set‐
	      tings.

	      See  SET	[set(7)] and in the documentation for more information
	      about allowed parameter names and values.

NOTES
       Use CREATE ROLE [create_role(7)]	 to  add  new  roles,  and  DROP  ROLE
       [drop_role(7)] to remove a role.

       ALTER  ROLE  cannot  change a role's memberships.  Use GRANT [grant(7)]
       and REVOKE [revoke(7)] to do that.

       Caution must be exercised when specifying an unencrypted password  with
       this command. The password will be transmitted to the server in cleart‐
       ext, and it might also be logged in the client's command history or the
       server  log.  psql  [psql(1)]  contains a command \password that can be
       used to safely change a role's password.

       It is also possible to tie a session default  to	 a  specific  database
       rather  than  to a role; see ALTER DATABASE [alter_database(7)].	 Role-
       specific settings override database-specific ones if there  is  a  con‐
       flict.

EXAMPLES
       Change a role's password:

       ALTER ROLE davide WITH PASSWORD 'hu8jmn3';

       Remove a role's password:

       ALTER ROLE davide WITH PASSWORD NULL;

       Change  a password expiration date, specifying that the password should
       expire at midday on 4th May 2015 using the time zone which is one  hour
       ahead of UTC:

       ALTER ROLE chris VALID UNTIL 'May 4 12:00:00 2015 +1';

       Make a password valid forever:

       ALTER ROLE fred VALID UNTIL 'infinity';

       Give a role the ability to create other roles and new databases:

       ALTER ROLE miriam CREATEROLE CREATEDB;

       Give  a	role a non-default setting of the maintenance_work_mem parame‐
       ter:

       ALTER ROLE worker_bee SET maintenance_work_mem = 100000;

COMPATIBILITY
       The ALTER ROLE statement is a PostgreSQL extension.

SEE ALSO
       CREATE ROLE [create_role(7)], DROP ROLE [drop_role(7)], SET [set(7)]

SQL - Language Statements	  2010-10-01			 ALTER ROLE(7)
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