On Fri, 31 Oct 2008, Gregory Stark wrote:

Tom Lane <[EMAIL PROTECTED]> writes:

Jeff Frost <[EMAIL PROTECTED]> writes:
Tom Lane wrote:
Huh.  That does sound like it's a version-to-version difference.
There's nothing in the CVS log that seems related though.  Are you
willing to post your test case?

It's a customer DB, so I'll contact them and see if we can boil it down
to a test case with no sensitive data.

Well, if there was a change it seems to have been in the right direction
;-) so this is mostly just idle curiosity.  Don't jump through hoops to
get a test case.

Assuming it's not a bug...

Well, after boiling down my test case to the bare essentials, I was unable to reproduce the different behavior between 8.3.3 and 8.3.4. Now, I've gone back to the original script and can't reproduce the behavior I previously saw on 8.3.4 and my screen session doesn't have enough scrollback to look at what happened previously. I was thinking perhaps I had inadvertently committed the transaction, but then the act would have been dropped as it's a temp table created with ON COMMIT DROP. But, I've tested 3 times in a row and every time 8.3.4 uses the seq scan just like 8.3.3 now, so I must've done something differently to get that result as Tom had originally suggested. I just can't think what it might have been. Perhaps it's time to buy some glasses. :-/

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Jeff Frost, Owner       <[EMAIL PROTECTED]>
Frost Consulting, LLC   http://www.frostconsultingllc.com/
Phone: 916-647-6411     FAX: 916-405-4032

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