redhat man page for create_group

CREATE 
GROUP(7) 						   SQL Commands 						   CREATE GROUP(7)

NAME
       CREATE GROUP - define a new user group

SYNOPSIS
       CREATE GROUP name [ [ WITH ] option [ ... ] ]

       where option can be:

	    SYSID gid
	  | USER  username [, ...]

   INPUTS
       name   The name of the group.

       gid    The SYSID clause can be used to choose the PostgreSQL group id of the new group. It is not necessary to do so, however.

	      If this is not specified, the highest assigned group id plus one, starting at 1, will be used as default.

       username
	      A list of users to include in the group. The users must already exist.

   OUTPUTS
       CREATE GROUP
	      Message returned if the command completes successfully.

DESCRIPTION
       CREATE  GROUP  will create a new group in the database installation.  Refer to the Administrator's Guide for information about using groups
       for authentication.  You must be a database superuser to use this command.

       Use ALTER GROUP [alter_group(7)] to change a group's membership, and DROP GROUP [drop_group(7)] to remove a group.

USAGE
       Create an empty group:

       CREATE GROUP staff;

       Create a group with members:

       CREATE GROUP marketing WITH USER jonathan, david;

COMPATIBILITY
   SQL92
       There is no CREATE GROUP statement in SQL92.  Roles are similar in concept to groups.

SQL - Language Statements					    2002-11-22							   CREATE GROUP(7)