| From: | Craig Ringer <craig(at)2ndquadrant(dot)com> |
|---|---|
| To: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Vik Fearing <vik(at)2ndquadrant(dot)fr>, Dave Page <dpage(at)pgadmin(dot)org>, Josh berkus <josh(at)agliodbs(dot)com>, pgsql-advocacy <pgsql-advocacy(at)postgresql(dot)org>, Petr Jelinek <petr(at)2ndquadrant(dot)com> |
| Subject: | Re: status/timeline of pglogical? |
| Date: | 2016-05-13 01:51:20 |
| Message-ID: | CAMsr+YEZfFOrqkE9z8N=CHO9T6Vi2F6V0YJ+DNWVELgM2OSsVA@mail.gmail.com |
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| Lists: | pgsql-advocacy |
On 13 May 2016 at 02:13, Joshua D. Drake <jd(at)commandprompt(dot)com> wrote:
> I am not arguing with you but... good luck.
>
>
Yeah.
While we could get away without replay of old-version WAL for in-place
upgrade we'd need versioned catalog tuples, so we could read a catalog
tuple in the old version, convert it on the fly and write it out in the new
version when we modified it. And that's just for starters. I think it'd be
great, but it's no small amount of work.
--
Craig Ringer http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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