Fwd: Re: Merge join and index scan strangeness

> Can't reproduce it here, either in HEAD or 8.4. Sure you have a clean
> build with no local modifications? The outright-incorrect last plan

Sure, just checkout'ed sources. And it's reproduced on current HEAD right now.

More info:

postgresql.conf changes:
shared_buffers=128MB
temp_buffers=16MB
work_mem=16MB
maintenance_work_mem=256MB
effective_cache_size=1024MB
autovacuum=on
log_destination=syslog

% pg_config --configure
'--enable-depend' '--enable-cassert' '--enable-debug' '--with-perl' 'CFLAGS=-O0'

% gcc -v
Using built-in specs.
Target: i386-undermydesk-freebsd
Configured with: FreeBSD/i386 system compiler
Thread model: posix
gcc version 4.2.1 20070719 [FreeBSD]

% uname -a
FreeBSD XXX.XXX 8.0-RELEASE-p1 FreeBSD 8.0-RELEASE-p1 #1: Fri Dec 11 19:03:49
MSK 2009 teodor(at)XXX(dot)XXX:/usr/obj/usr/src/sys/XOR i386

With gcc version 4.4.3 bug is reproduces too.

Could you point me a starting point of investigation?
--
Teodor Sigaev E-mail: teodor(at)sigaev(dot)ru
WWW: http://www.sigaev.ru/