Re: [PATCHES] Re: BUG #4070: Join more then ~15 tables let postgreSQL produces wrong data

From: John R Pierce <pierce(at)hogranch(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-patches <pgsql-patches(at)postgresql(dot)org>, "Ceschia, Marcello" <Marcello(dot)Ceschia(at)medizin(dot)uni-leipzig(dot)de>, PostgreSQL Bugs <pgsql-bugs(at)postgresql(dot)org>
Subject: Re: [PATCHES] Re: BUG #4070: Join more then ~15 tables let postgreSQL produces wrong data
Date: 2008-04-03 17:54:10
Message-ID: 47F519C2.1090602@hogranch.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-bugs pgsql-patches

Tom Lane wrote:
> That's what I meant. Heikki is quoting himself from a message that
> hasn't appeared anywhere public, and he must have had at least one
> message from the OP that hasn't appeared either. So the rest of us
> are still mostly in the dark about the problem.
>

I got this one, which appears to be the head of this thread...

-------- Original Message --------
Subject: [BUGS] BUG #4070: Join more then ~15 tables let postgreSQL
produces wrong data
Date: Mon, 31 Mar 2008 12:26:54 GMT
From: Marcello Ceschia <Marcello(dot)Ceschia(at)medizin(dot)uni-leipzig(dot)de>
To: pgsql-bugs(at)postgresql(dot)org

The following bug has been logged online:

Bug reference: 4070
Logged by: Marcello Ceschia
Email address: Marcello(dot)Ceschia(at)medizin(dot)uni-leipzig(dot)de
PostgreSQL version: 8.2.5 and 8.3.0
Operating system: Windows XP
Description: Join more then ~15 tables let postgreSQL produces wrong
data
Details:

We have an situation where we must join ~30 tables to get a general table.
Don't ask why we do this this way.

After an unknown number of columns the joind values are not correct. We get
only the value from column 1.
If I separete the query and generate an temporary table with the first 20
tables and join them later with the rest one, all works fine.
All values in the result table are correct.

If you need more information, contact me I can send some example data.

In response to

Browse pgsql-bugs by date

  From Date Subject
Next Message Heikki Linnakangas 2008-04-03 18:22:29 Re: [PATCHES] Re: BUG #4070: Join more then ~15 tables let postgreSQL produces wrong data
Previous Message Tom Lane 2008-04-03 17:41:30 Re: [PATCHES] Re: BUG #4070: Join more then ~15 tables let postgreSQL produces wrong data

Browse pgsql-patches by date

  From Date Subject
Next Message Bruce Momjian 2008-04-03 18:18:08 Re: postgresql-icu patch status
Previous Message Tom Lane 2008-04-03 17:41:30 Re: [PATCHES] Re: BUG #4070: Join more then ~15 tables let postgreSQL produces wrong data