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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Jeff Davis <pgsql@j-davis.com>
Cc: Bruce Momjian <bruce@momjian.us>
Cc: Corey Huinker <corey.huinker@gmail.com>
Cc: Magnus Hagander <magnus@hagander.net>
Cc: Stephen Frost <sfrost@snowman.net>
Cc: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
Cc: Matthias van de Meent <boekewurm+postgres@gmail.com>
Cc: Peter Smith <smithpb2250@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Cc: Tomas Vondra <tomas.vondra@enterprisedb.com>
Subject: Re: Statistics Import and Export
Date: Mon, 01 Apr 2024 13:56:13 -0400
Message-ID: <1140246.1711994173@sss.pgh.pa.us> (raw)
In-Reply-To: <42100b1cd67d2b690e5da611ba68de64ea09a62d.camel@j-davis.com>
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	<718fa933c2c58d0ecc61995ab5c7ca1fe78d6369.camel@j-davis.com>
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	<CADkLM=dTY5bkMB4WO0aTYEOP=re0_QjWfYyPd-A5-BvEQdn9cA@mail.gmail.com>
	<790773.1711910899@sss.pgh.pa.us>
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	<864345.1711932452@sss.pgh.pa.us>
	<CADkLM=dKC76yUJDWHnL61zEGRR2D6KOf0DM5r23m2M=WFGpZyA@mail.gmail.com>
	<1043793.1711984209@sss.pgh.pa.us>
	<Zgrqqm-sGxfl-TqC@momjian.us>
	<42100b1cd67d2b690e5da611ba68de64ea09a62d.camel@j-davis.com>

Jeff Davis <pgsql@j-davis.com> writes:
> On Mon, 2024-04-01 at 13:11 -0400, Bruce Momjian wrote:
>> Reality check --- are we still targeting this feature for PG 17?

> I see a few useful pieces here:

> 1. Support import of statistics (i.e.
> pg_set_{relation|attribute}_stats()).

> 2. Support pg_dump of stats

> 3. Support pg_upgrade with stats

> It's possible that not all of them make it, but let's not dismiss the
> entire feature yet.

The unresolved questions largely have to do with the interactions
between these pieces.  I think we would seriously regret setting
any one of them in stone before all three are ready to go.

			regards, tom lane





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  Cc: tgl@sss.pgh.pa.us, pgsql@j-davis.com, bruce@momjian.us, corey.huinker@gmail.com, magnus@hagander.net, sfrost@snowman.net, ashutosh.bapat.oss@gmail.com, boekewurm+postgres@gmail.com, smithpb2250@gmail.com, pgsql-hackers@lists.postgresql.org, tomas.vondra@enterprisedb.com
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