| From: | Frédéric Yhuel <frederic(dot)yhuel(at)dalibo(dot)com> |
|---|---|
| To: | Nathan Bossart <nathandbossart(at)gmail(dot)com>, Corey Huinker <corey(dot)huinker(at)gmail(dot)com> |
| Cc: | John Naylor <johncnaylorls(at)gmail(dot)com>, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Jeff Davis <pgsql(at)j-davis(dot)com>, jian he <jian(dot)universality(at)gmail(dot)com>, Matthias van de Meent <boekewurm+postgres(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, 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>, Peter Smith <smithpb2250(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, alvherre(at)alvh(dot)no-ip(dot)org |
| Subject: | Re: vacuumdb changes for stats import/export |
| Date: | 2025-07-23 12:45:10 |
| Message-ID: | 4b94ca16-7a6d-4581-b2aa-4ea79dbc082a@dalibo.com |
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| Lists: | pgsql-hackers |
On 3/18/25 22:37, Nathan Bossart wrote:
> Committed with the following small changes:
Hi, I don't really understand this sentence in
doc/src/sgml/ref/vacuumdb.sgml:
> This option prevents vacuumdb from deleting existing statistics so
that the query optimizer's choices do not become transiently worse.
I thought that the point was to avoid unnecessary post-upgrade analyzes?
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