| From: | Michael Paquier <michael(at)paquier(dot)xyz> |
|---|---|
| To: | Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com> |
| Cc: | florisvannee(at)optiver(dot)com, andres(at)anarazel(dot)de, bertranddrouvot(dot)pg(at)gmail(dot)com, tgl(at)sss(dot)pgh(dot)pa(dot)us, pgsql-bugs(at)lists(dot)postgresql(dot)org |
| Subject: | Re: error "can only drop stats once" brings down database |
| Date: | 2024-06-25 04:00:39 |
| Message-ID: | ZnpA5zqSgW2FfqYF@paquier.xyz |
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| Lists: | pgsql-bugs |
On Tue, Jun 25, 2024 at 09:22:48AM +0900, Kyotaro Horiguchi wrote:
> Is it something like this? I forgot the reason why this was excluded
> from the vinal version, though.
>
> https://www.postgresql.org/message-id/20201001.090722.322196928507744460.horikyota.ntt%40gmail.com
That's a bit different than the gc_count presented in 0004, because
there is no relationship to autovacuum with the cleanup of the
entries, still there is some overlap in the thought process: this
suggestion just makes sure that any backend holding local references
to a shared entry with a different age does not attempt to manipulate
it after switching locally to a dropped state.
--
Michael
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