ALTER USER
Name
ALTER USER -- change a database role
Synopsis
ALTER USER name [ [ WITH ] option [ ... ] ]
where option can be:
      SUPERUSER | NOSUPERUSER
    | CREATEDB | NOCREATEDB
    | CREATEROLE | NOCREATEROLE
    | CREATEUSER | NOCREATEUSER
    | INHERIT | NOINHERIT
    | LOGIN | NOLOGIN
    | REPLICATION | NOREPLICATION
    | CONNECTION LIMIT connlimit
    | [ ENCRYPTED | UNENCRYPTED ] PASSWORD 'password'
    | VALID UNTIL 'timestamp'
ALTER USER name RENAME TO new_name
ALTER USER name SET configuration_parameter { TO | = } { value | DEFAULT }
ALTER USER name SET configuration_parameter FROM CURRENT
ALTER USER name RESET configuration_parameter
ALTER USER name RESET ALLDescription
   ALTER USER is now an alias for
   ALTER ROLE.
  
Compatibility
   The ALTER USER statement is a
   PostgreSQL extension.  The SQL standard
   leaves the definition of users to the implementation.