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From: Bertrand Drouvot <[email protected]>
To: Greg Sabino Mullane <[email protected]>
Cc: [email protected]
Subject: Re: Adding locks statistics
Date: Wed, 13 Aug 2025 03:20:26 +0000
Message-ID: <aJwEeoQvXRSZ/[email protected]> (raw)
In-Reply-To: <CAKAnmmJ+WW8=28dvQGvPvGh1APh0FxDbdTkdahoatN35y2cgxw@mail.gmail.com>
References: <[email protected]>
	<CAKAnmm+USTr5MeKuyrAvbCjHqbSFbZ+czJsV7fPYt9nECQkf-A@mail.gmail.com>
	<[email protected]>
	<CAKAnmmJ+WW8=28dvQGvPvGh1APh0FxDbdTkdahoatN35y2cgxw@mail.gmail.com>

Hi,

On Tue, Aug 12, 2025 at 08:54:07AM -0400, Greg Sabino Mullane wrote:
> On Tue, Aug 12, 2025 at 5:32 AM Bertrand Drouvot <
> [email protected]> wrote:
> 
> > Docs: seem good. Needs a section on how to reset via
> > > SELECT pg_stat_reset_shared('lock');
> >
> 
> I meant something closer to the actual description of the view.  Having it
> buried in the pg_stat_reset_shared section is not intuitive for people
> looking up the view in the docs.

I agree that we could add this extra information in the view documentation.

But none of pg_stat_archiver, pg_stat_bgwriter, pg_stat_checkpointer, pg_stat_io,
pg_stat_slru and pg_stat_wal have done so. The only exception is pg_stat_recovery_prefetch
and for a good reason as not all of its fields are reset. 

While I think that's probably a good idea, I think it's worth a dedicated
thread (so that the discussion takes into account the other views mentioned
above).

Regards,

-- 
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com





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