CREATE USER
Name
CREATE USER -- define a new database role
Synopsis
CREATE USER 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' 
    | IN ROLE rolename [, ...]
    | IN GROUP rolename [, ...]
    | ROLE rolename [, ...]
    | ADMIN rolename [, ...]
    | USER rolename [, ...]
    | SYSID uid Description
   CREATE USER is now an alias for
   CREATE ROLE.
   The only difference is that when the command is spelled
   CREATE USER, LOGIN is assumed
   by default, whereas NOLOGIN is assumed when
   the command is spelled
   CREATE ROLE.
  
Compatibility
   The CREATE USER statement is a
   PostgreSQL extension.  The SQL standard
   leaves the definition of users to the implementation.