I would provide all the needed information if I only had them. The
thing is it happened on one of our client's machine and all he did was
reporting the problem without providing us the data folder. So I asked
the question just to know whether it is possible to read from a higher
block number than the highest physical number. Thank You for Your
attention.
2010/9/28 Kevin Grittner <Kevin.Grittner@wicourts.gov>:
> Lukasz Brodziak <lukasz.brodziak@gmail.com> wrote:
>
>> I got an error "Could not read block <no.> of relation...." it
>> appeared to be in pg_trigger
>
> If you'd pasted in the message as it appeared, we wouldn't need to
> guess whether you're right.
>
>> the block number was 110 and the file has only 67 pages. So the
>> question is how is it possible?
>
> That could be, if your reading of things is right, database
> corruption. Before you do anything else, shutdown the database
> server and make a copy of the data directory and all its
> subdirectories. (Don't try to pick one database or otherwise pick
> and choose files.) Save that backup until you've recovered from the
> problem and things have been stable for at least a few weeks.
>
> Next, read this page and repost with more information:
>
> http://wiki.postgresql.org/wiki/Guide_to_reporting_problems
>
> So far you haven't given us much to work with.
>
> -Kevin
>
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--
Łukasz Brodziak
II MU Bioinformatyka