function getGroup($groname)
{
$this->clean($groname);
$sql = "\n\t\t\tSELECT s.usename FROM pg_catalog.pg_user s, pg_catalog.pg_group g\n\t\t\tWHERE g.groname='{$groname}' AND s.usesysid = ANY (g.grolist)\n\t\t\tORDER BY s.usename";
return $this->selectSet($sql);
}