I don't think a limit modifier will work to provide the 'most recently added' records in this instance since the location of the new rows is not guaranteed to be at the bottom of the table.

I imagine (and may well be corrected on this) that MySQL adds new rows to any 'previously deleted' row locations, and if there are none, MySQL then adds them to the end of the table. If you're very lucky and rows are added to the table and never deleted, your method may work correctly, but I don't believe that it's a 'production ready' method.

--t. alex

"Nyahhh (munch, munch) What's up, Doc?" --Bugs Bunny