Sorry to say I've spend countless hours trying the XOG back in a query without any modifications
(see NSQL_SYNTAX_ERROR_TEXT_EMPTY )
The XOG client - which has been referred as quite user friendly - just doesn't do it.
No such problem with XOG Bridge: That could do it with the first attempt.
The problem is that in some environments you not allowed to install anything and limited to what you can access in the web.