Re: WIP partial replication patch
| От | Andres Freund |
|---|---|
| Тема | Re: WIP partial replication patch |
| Дата | |
| Msg-id | 20100813194227.GA2856@anarazel.de обсуждение исходный текст |
| Ответ на | Re: WIP partial replication patch (Boszormenyi Zoltan <zb@cybertec.at>) |
| Ответы |
Re: WIP partial replication patch
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| Список | pgsql-hackers |
On Fri, Aug 13, 2010 at 09:36:00PM +0200, Boszormenyi Zoltan wrote: > Tom Lane írta: > > Boszormenyi Zoltan <zb@cybertec.at> writes: > > > >> attached is a WIP patch that will eventually implement > >> partial replication, with the following syntax: > > This fundamentally cannot work, as it relies on system catalogs to be > > valid during recovery. > Just like Hot Standby, no? What is the difference here? > Sorry for being ignorant. In HS you can only connect after youve found a restartpoint - only after that you know that you have reached a consistent point for the system. I think this is fixable by keeping more wal on the standby's but I need to think more about it. Andres
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