Re: Introduce a new view for checkpointer related stats

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, "Drouvot, Bertrand" <bertranddrouvot(dot)pg(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Introduce a new view for checkpointer related stats
Date: 2022-11-28 17:58:48
Message-ID: CA+TgmobHNXBq5Z0T3P_FbQ6MncqwKr19L9-Z90WEb879d4-oMA@mail.gmail.com
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On Tue, Nov 22, 2022 at 3:53 PM Andres Freund <andres(at)anarazel(dot)de> wrote:
> I think we should consider deprecating the pg_stat_bgwriter columns but
> leaving them in place for a few years. New stuff should only be added to
> pg_stat_checkpointer, but we don't need to break old monitoring queries.

I vote to just remove them. I think that most people won't update
their queries until they are forced to do so. I don't think it
matters very much when we force them to do that.

Our track record in following through on deprecations is pretty bad
too, which is another consideration.

--
Robert Haas
EDB: http://www.enterprisedb.com

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