> 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@xxxxxxxxxxxxxxx http://www.killerbytes.com/ (303) 722-0567 voice ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
