From: | Qingqing Zhou <zhouqq(at)cs(dot)toronto(dot)edu> |
---|---|
To: | Harald Armin Massa <haraldarminmassa(at)gmail(dot)com> |
Cc: | pgsql-bugs(at)postgresql(dot)org |
Subject: | Re: strange disappearence of postgres file |
Date: | 2005-11-23 08:09:29 |
Message-ID: | Pine.LNX.4.58.0511230305190.26552@eon.cs |
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Lists: | pgsql-bugs |
On Wed, 23 Nov 2005, Harald Armin Massa wrote:
>
> no, it is definitely NOT a temp table. I know which table it is,
> because: that "could not open relation ..." error message was exactly
> provokable with "select * from repofeld", which is one of my tables in
> that database.
>
What is your file system, NTFS or FAT32? Is that table newly created?
So there is a valid record in pg_class but the representing data file is
lost ... a possible theory of what's happened could be:
1) create the table;
2) a checkpoint happens;
3) lost power;
[ restar the machine and database ]
4) file system recovery - unable to recovery your data file;
5) database recovery - don't play WAL and recreate your data file because
of the checkpoint;
Is that possible?
Regards,
Qingqing
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