| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Melanie Plageman <melanieplageman(at)gmail(dot)com> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, Kirill Reshke <reshkekirill(at)gmail(dot)com>, Andrey Borodin <x4mmm(at)yandex-team(dot)ru>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi> |
| Subject: | Re: eliminate xl_heap_visible to reduce WAL (and eventually set VM on-access) |
| Date: | 2025-09-08 16:41:00 |
| Message-ID: | CA+TgmoYPbvC+n=1sapSkGD3G+XzhShGJBOa-YaDFp=g0TD29sw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Sep 5, 2025 at 6:20 PM Melanie Plageman
<melanieplageman(at)gmail(dot)com> wrote:
> yikes, you are right about the "reason" member. Attached 0002 removes
> it, and I'll go ahead and fix it in the back branches too.
I think changing this in the back-branches is a super-bad idea. If you
want, you can add a comment in the back-branches saying "oops, we
shipped a field that isn't used for anything", but changing the struct
definition is very likely to make 0 people happy and >0 people
unhappy. On the other hand, changing this in master is a good idea and
you should go ahead and do that before this creates any more
confusion.
--
Robert Haas
EDB: http://www.enterprisedb.com
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