| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Jeff Davis <pgsql(at)j-davis(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Corey Huinker <corey(dot)huinker(at)gmail(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, jian he <jian(dot)universality(at)gmail(dot)com>, Nathan Bossart <nathandbossart(at)gmail(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Matthias van de Meent <boekewurm+postgres(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>, 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: Statistics Import and Export |
| Date: | 2025-02-26 21:44:20 |
| Message-ID: | 2228774.1740606260@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Jeff Davis <pgsql(at)j-davis(dot)com> writes:
> That would be a separate thread, but it's good to know that there is a
> general consensus that we don't want to use in-place updates for non-
> critical things like stats (and perhaps eliminate them entirely). In
> other words, the inconcistency likely won't last forever.
I'm quite sure that the original argument for using in-place updates
for this was not wanting a full-database VACUUM or ANALYZE to update
every tuple in pg_class. At the time that definitely did lead to
more-or-less 2x bloat. The new information we have now is that that's
no longer the case, and thus the decision can and should be revisited.
regards, tom lane
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