[SoLetsGO]

Quote:

Originally Posted by GoldenLion False. Only threaded queries have a callback. If you want to do a non-threaded query then you will need to save the cache and get the stuff from it then delete the cache and you won't need a callback, but it will freeze the server until it finishes that MySQL stuff, but if you use threaded queries then the server will keep going while that MySQL stuff is happening. You can make threaded queries look better by using y_inline though. Also in R40+ it's cache_get_value_name.

Since it's the advantage to use threaded queries in newer MySQL versions, it would make no sense to continue using the old stuff or you could just stay with r5.