Re: ERROR: posting list tuple with 20 items cannot be split at offset 168

From: Herman verschooten <herman(at)verschooten(dot)net>
To: Peter Geoghegan <pg(at)bowt(dot)ie>
Cc: PostgreSQL mailing lists <pgsql-bugs(at)lists(dot)postgresql(dot)org>, Christl Nagels <christel(dot)nagels(at)tranna(dot)be>
Subject: Re: ERROR: posting list tuple with 20 items cannot be split at offset 168
Date: 2021-10-27 05:28:25
Message-ID: 5503FC86-E84A-410B-9D25-1A5AE9DBD1BC@verschooten.net
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Peter,

No we just noticed that we were unable to update that 1 record, and only that Boolean field. We did not search for other records that might have been affected.

I did as yet not run VACUUM, I’ll look into that later today.

Herman

Verstuurd vanaf mijn iPad

> Op 27 okt. 2021 om 03:45 heeft Peter Geoghegan <pg(at)bowt(dot)ie> het volgende geschreven:
>
> On Mon, Oct 25, 2021 at 10:35 PM Herman verschooten
> <Herman(at)verschooten(dot)net> wrote:
>> I can confirm that after dropping and recreating the 6 indexes everything is working fine.
>
> Did you also run VACUUM?
>
> You said that not all rows seem to be affected. Is there any pattern
> that you notice about the rows that are affected?
>
> I understand (from your remarks onSlack) that you found that the
> problem seemed to go away once you dropped the index named
> index_freights_on_cmr_received. But once you recreated the index from
> scratch, the problem came back.
>
> In other words, rebuilding the index didn't seem to make the "posting
> list tuple with 20 items cannot be split at offset 168" error go away,
> but dropping the index appeared to *temporarily* resolve the issue?
> Suggesting that the problem was either in the table, or in the code
> that builds a new index structure by scanning the table?
>
>> Thanks for all the help, both here and on slack,
>
> Thanks for the report!
>
> --
> Peter Geoghegan

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