| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Justin Pryzby <pryzby(at)telsasoft(dot)com>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Andres Freund <andres(at)anarazel(dot)de>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>, David Steele <david(at)pgmasters(dot)net>, Ildus Kurbangaliev <i(dot)kurbangaliev(at)gmail(dot)com>, Dmitry Dolgov <9erthalion6(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: [HACKERS] Custom compression methods |
| Date: | 2021-03-25 16:13:44 |
| Message-ID: | CA+TgmoZMV2jy3tCwjNG7GC2_xyL_ZExd=NPOu3KgeiXj3BY3rQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Mar 24, 2021 at 2:15 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> But let's ignore the case of pg_upgrade and just consider a dump/restore.
> I'd still say that unless you give --no-toast-compression then I would
> expect the dump/restore to preserve the tables' old compression behavior.
> Robert's argument that the pre-v14 database had no particular compression
> behavior seems nonsensical to me. We know exactly which compression
> behavior it has.
I said that it didn't have a state, not that it didn't have a
behavior. That's not exactly the same thing. But I don't want to argue
about it, either. It's a judgement call what's best here, and I don't
pretend to have all the answers. If you're sure you've got it right
... great!
--
Robert Haas
EDB: http://www.enterprisedb.com
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