> So, how can I do to execute it as if it was the first
> time again?
Reboot.
As Lew pointed out, that might not actually be a good idea, because caching
means that most queries will most of the time not run with that "first time"
performance.
--
Scott Ribe
scott_ribe(at)killerbytes(dot)com
http://www.killerbytes.com/
(303) 722-0567 voice