OK - in that same vain, I thought of something even better - using dynamic SQL instead. It sped things up right away! Thanks for putting me on the right track! ________________________________________ From: Scott Marlowe [scott.marlowe@xxxxxxxxx] Sent: Tuesday, December 18, 2007 12:02 PM To: Weber, Geoffrey M. Cc: Tom Lane; pgsql-general@xxxxxxxxxxxxxx Subject: Re: Problem with index not being chosen inside PL/PgSQL function... On Dec 18, 2007 10:54 AM, Weber, Geoffrey M. <Geoffrey.Weber@xxxxxxxxxxxxx> wrote: > Tom, > > Yes, the distribution must be what's doing it. I guess I knew that subconciously, but was looking for something like hints to force the planner to do what I wanted. Instead it looks like I'll have to do a bit of tweaking with my indexes. Probably a partial index on the 'not_displayed_id' column. It'll be very small and shouldn't cause much overhead. I was trying to keep my index count down, and have had a dual-column index on (replaced_by_id, not_displayed_id) to this point. Fix not with a hammer that which you can fix with a screwdriver. Fix not with a screwdriver that which you can fix with a knob Have you tried increasing the stats target of the guilty column and reanalyzing to see if that helps? ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ NOTICE: This electronic mail transmission may contain confidential information and is intended only for the person(s) named. Any use, copying or disclosure by any other person is strictly prohibited. If you have received this transmission in error, please notify the sender via e-mail. NOTICE: This electronic mail transmission may contain confidential information and is intended only for the person(s) named. Any use, copying, or disclosure by any other person is strictly prohibited. If you have received this transmission in error, please notify the sender via e-mail. ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to majordomo@xxxxxxxxxxxxxx so that your message can get through to the mailing list cleanly
