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List:       postgresql-general
Subject:    Re: [HACKERS] ERROR: unexpected data beyond EOF
From:       "Joshua D. Drake" <jd () commandprompt ! com>
Date:       2015-04-30 19:12:41
Message-ID: 55427EA9.6080208 () commandprompt ! com
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On 04/30/2015 12:09 PM, Alvaro Herrera wrote:
>
> Joshua D. Drake wrote:
>>
>> I take that back, it appears this table is heavily deleted from and also
>> uses the lo_manage() triggers.
>
> Well, if it's heavily deleted, then it's probably also heavily vacuumed
> and from time to time empty pages at the tail are removed by vacuum.  It
> might also be the case I was remembering, rather than regular TRUNCATE.
>
> I don't think the vacuumlo stuff would have much to do with it issue; I
> think it would only scan the table, then delete stuff from
> pg_largeobject.  It doesn't modify the table itself (unless I'm
> misremembering)
>
> Anyway, I don't remember that we reached any useful conclusion.  Andres
> suspected a PG bug, but we didn't find anything.

Well it certainly causes an outage unfortunately. Once the error occurs 
postgresql will stop accepting requests (which is correct but still).

JD


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