Re: pg_stat_statements locking

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Andrey Borodin <x4mmm(at)yandex-team(dot)ru>
Cc: Julien Rouhaud <rjuju123(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: pg_stat_statements locking
Date: 2022-09-12 18:01:23
Message-ID: 1744580.1663005683@sss.pgh.pa.us
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Andrey Borodin <x4mmm(at)yandex-team(dot)ru> writes:
>> On 12 Sep 2022, at 18:18, Julien Rouhaud <rjuju123(at)gmail(dot)com> wrote:
>> That being
>> said I don't know if adding a timeout would be too expensive for the lwlock
>> infrastructure.

I want to object fiercely to loading down LWLock with anything like
timeouts. It's supposed to be "lightweight". If we get away from
that we're just going to find ourselves needing another lighter-weight
lock mechanism.

regards, tom lane

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