Re: [sqlsmith] Crash in GetOldestSnapshot()

From: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
To: Andreas Seltenreich <seltenreich(at)gmx(dot)de>
Cc: PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [sqlsmith] Crash in GetOldestSnapshot()
Date: 2016-08-06 12:05:04
Message-ID: CAB7nPqTkYmEb68DpSuZN8=9v7byv1t1EbRZE004m8pOjer=U1Q@mail.gmail.com
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On Sat, Aug 6, 2016 at 6:32 PM, Andreas Seltenreich <seltenreich(at)gmx(dot)de> wrote:
> since updating master from c93d873..fc509cd, I see crashes in
> GetOldestSnapshot() on update/delete returning statements.
>
> I reduced the triggering statements down to this:
>
> update clstr_tst set d = d returning d;
>
> Backtrace below.

3e2f3c2e is likely to blame here.. I have moved the open item
"old_snapshot_threshold allows heap:toast disagreement" back to the
list of open items.
--
Michael

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