| From: | Alexander Lakhin <exclusion(at)gmail(dot)com> |
|---|---|
| To: | Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
| Cc: | Daniel Gustafsson <daniel(at)yesql(dot)se>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Mikhail Gribkov <youzhick(at)gmail(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Robert Haas <robertmhaas(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Greg Nancarrow <gregn4422(at)gmail(dot)com>, Ivan Panchenko <wao(at)mail(dot)ru>, Teodor Sigaev <teodor(at)sigaev(dot)ru>, Ibrar Ahmed <ibrar(dot)ahmad(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> |
| Subject: | Re: On login trigger: take three |
| Date: | 2024-02-05 17:00:01 |
| Message-ID: | 96b7fa75-a63a-1af1-6c41-3d9baadec238@gmail.com |
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| Lists: | pgsql-hackers |
Hello Alexander,
05.02.2024 02:51, Alexander Korotkov wrote:
> Usage of heap_inplace_update() seems appropriate for me here. It
> avoids trouble with both TOAST and row-level locks. Alexander, could
> you please recheck this fixes the problem.
I've re-tested the last problematic scenario and can confirm that the fix
works for it (though it still doesn't prevent the autovacuum issue (with
4b885d01 reverted)), but using heap_inplace_update() was considered risky
in a recent discussion:
https://www.postgresql.org/message-id/1596629.1698435146%40sss.pgh.pa.us
So maybe it's worth to postpone such a fix till that discussion is
finished or to look for another approach...
Best regards,
Alexander
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