| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Richard Guo <rguo(at)postgresql(dot)org> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: pgsql: Ignore PlaceHolderVars when looking up statistics |
| Date: | 2026-01-02 20:46:13 |
| Message-ID: | CA+Tgmobgfvw4w9javDG_aR3EqQC9AYssWcuns7-m4qLx1AyG=w@mail.gmail.com |
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On Sun, Dec 28, 2025 at 9:45 PM Richard Guo <rguo(at)postgresql(dot)org> wrote:
> Ignore PlaceHolderVars when looking up statistics
>
> Back-patch to v18. Although this issue exists before that, changes in
> this version made it common enough to notice. Given the lack of field
> reports for older versions, I am not back-patching further.
Generally we don't back-patch fixes that could change plans, because
it tends to produce user complaints. It's maybe more justifiable in
this case because v18 is quite new and you didn't back-patch to older
releases, but are we sure that it's warranted even there?
--
Robert Haas
EDB: http://www.enterprisedb.com
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