[Zope] atomic operations

Hi folks! I have a table it has an auto increment fields. How could i have the id id insert by my last query atomically? I know i could use last_insert_id() function with MySQL, but since my mysql handler is shared by many instances of Zope, i cannot garantee that no other query runs between the insert and the select last_insert_id queries. Any ideia ? -- There is only one thing in the world worse than being talked about, and that is not being talked about. -- Oscar Wilde