Re: Possible planner bug/regression introduced in 8.2.5

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Jakub Ouhrabka <kuba(at)comgate(dot)cz>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: Possible planner bug/regression introduced in 8.2.5
Date: 2007-10-24 13:27:14
Message-ID: 1549.1193232434@sss.pgh.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-bugs

Jakub Ouhrabka <kuba(at)comgate(dot)cz> writes:
> I tried to simplify the query even more and now I have query which on
> 8.2.4 is planned instantly and on 8.2.5 takes cca 8 seconds.

Are you sure you were using the same planner parameters (particularly
join_collapse_limit and the geqo threshold) in both cases?

regards, tom lane

In response to

Responses

Browse pgsql-bugs by date

  From Date Subject
Next Message Jakub Ouhrabka 2007-10-24 13:46:38 Re: Possible planner bug/regression introduced in 8.2.5
Previous Message Bill Moran 2007-10-24 12:47:25 Re: BUG #3692: Conflicting create table statements throw unexpected error