| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Jeff Davis <pgsql(at)j-davis(dot)com> |
| Cc: | Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>, Corey Huinker <corey(dot)huinker(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Michael Paquier <michael(at)paquier(dot)xyz>, 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>, Peter Smith <smithpb2250(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, jian he <jian(dot)universality(at)gmail(dot)com> |
| Subject: | Re: Statistics Import and Export: difference in statistics dumped |
| Date: | 2025-03-10 21:53:26 |
| Message-ID: | 1322262.1741643606@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
I wrote:
> I think what is happening is that the patch shut off CREATE
> INDEX's update of not only the table's stats but also the
> index's stats. This seems unhelpful: the index's empty
> stats can never be what's wanted.
I looked at this more closely and realized that it's a simple matter
of having made the tests in the wrong order. The whole stanza
should only apply when dealing with the table, not the index.
I verified that this change fixes the cross-version-upgrade
failure in local testing, and pushed it.
regards, tom lane
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