Re: Statistics Import and Export

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Jeff Davis <pgsql(at)j-davis(dot)com>
Cc: Bruce Momjian <bruce(at)momjian(dot)us>, Corey Huinker <corey(dot)huinker(at)gmail(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Stephen Frost <sfrost(at)snowman(dot)net>, Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>, Matthias van de Meent <boekewurm+postgres(at)gmail(dot)com>, Peter Smith <smithpb2250(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>
Subject: Re: Statistics Import and Export
Date: 2024-04-01 17:56:13
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Jeff Davis <pgsql(at)j-davis(dot)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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