Re: shared-memory based stats collector - v67

From: Andres Freund <andres(at)anarazel(dot)de>
To: Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>
Cc: melanieplageman(at)gmail(dot)com, ibrar(dot)ahmad(at)gmail(dot)com, masao(dot)fujii(at)oss(dot)nttdata(dot)com, gkokolatos(at)protonmail(dot)com, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: shared-memory based stats collector - v67
Date: 2022-03-29 07:26:51
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On 2022-03-23 16:38:33 +0900, Kyotaro Horiguchi wrote:
> At Tue, 22 Mar 2022 11:56:40 +0900 (JST), Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com> wrote in
> > Docs.. Yeah I'll try it.
> This is the first cut, based on the earlier patchset.


> I didn't mention pgstat_force_next_flush() since I think it is a
> developer-only feature.

Yes, that makes sense.

Sorry for not yet getting back to looking at this.

One thing we definitely need to add documentation for is the
stats_fetch_consistency GUC. I think we should change its default to 'cache',
because that still gives the ability to "self-join", without the cost of the
current method.


Andres Freund

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