| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Corey Huinker <corey(dot)huinker(at)gmail(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Jeff Davis <pgsql(at)j-davis(dot)com>, 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 17:33:28 |
| Message-ID: | Zgrv6HLdDvoxdpiO@momjian.us |
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| Lists: | pgsql-hackers |
On Sun, Mar 31, 2024 at 07:04:47PM -0400, Tom Lane wrote:
> Corey Huinker <corey(dot)huinker(at)gmail(dot)com> writes:
> >> I can't quibble with that view of what has priority. I'm just
> >> suggesting that redesigning what pg_upgrade does in this area
> >> should come later than doing something about extended stats.
>
> > I mostly agree, with the caveat that pg_upgrade's existing message saying
> > that optimizer stats were not carried over wouldn't be 100% true anymore.
>
> I think we can tweak the message wording. I just don't want to be
> doing major redesign of the behavior, nor adding fundamentally new
> monitoring capabilities.
I think pg_upgrade could check for the existence of extended statistics
in any database and adjust the analyze recommdnation wording
accordingly.
--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com
Only you can decide what is important to you.
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