| From: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
|---|---|
| To: | Julien Rouhaud <rjuju123(at)gmail(dot)com> |
| Cc: | "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Subject: | Re: [PoC] pg_upgrade: allow to upgrade publisher node |
| Date: | 2023-05-03 10:40:34 |
| Message-ID: | 20230503104034.bhi5tlxscx2wcqj3@alvherre.pgsql |
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| Thread: | |
| Lists: | pgsql-hackers |
On 2023-May-02, Julien Rouhaud wrote:
> On Tue, May 02, 2023 at 12:55:18PM +0200, Alvaro Herrera wrote:
> > A point on preserving physical replication slots: because we change WAL
> > format from one major version to the next (adding new messages or
> > changing format for other messages), we can't currently rely on physical
> > slots working across different major versions.
>
> I don't think anyone suggested to do physical replication over different major
> versions.
They didn't, but a man can dream. (Anyway, we agree on it not working
for various reasons.)
--
Álvaro Herrera PostgreSQL Developer — https://www.EnterpriseDB.com/
"No es bueno caminar con un hombre muerto"
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