Re: BUG #5646: missing chunk number 0 for toast

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: "missing chunk number" <chand(dot)vizag(at)gmail(dot)com>, <pgsql-bugs(at)postgresql(dot)org>
Subject: Re: BUG #5646: missing chunk number 0 for toast
Date: 2010-09-07 15:56:32
Message-ID: 4C861A6002000025000352A3@gw.wicourts.gov
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"missing chunk number" <chand(dot)vizag(at)gmail(dot)com> wrote:

> when i run my table in editor i faced this below error.
> Ex: select * from ad_role
>
> ERROR: missing chunk number 0 for toast value 525559 in
> pg_toast_325765
>
> ********** Error **********
>
> ERROR: missing chunk number 0 for toast value 525559 in
> pg_toast_325765
> SQL state: XX000
>
>
> How can i solve this error.Can u guide me.

This is database corruption and extremely unlikely to be a bug in
the current maintenance release of 8.3. Please read the following
page and post with more information to the pgsql-general list:

http://wiki.postgresql.org/wiki/Guide_to_reporting_problems

Your first step, though, should be to stop the PostgreSQL service
and make a complete copy of the data directory and all its
subdirectories, and plan on keeping that until at least a few weeks
after the issue is resolved.

-Kevin

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