From: | Teodor Sigaev <teodor(at)sigaev(dot)ru> |
---|---|
To: | Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Fwd: Re: Merge join and index scan strangeness |
Date: | 2010-02-19 15:10:01 |
Message-ID: | 4B7EA9C9.8000603@sigaev.ru |
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Lists: | pgsql-hackers |
> 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/
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