Re: Re: Backup and Recovery

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От Bruce Momjian
Тема Re: Re: Backup and Recovery
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Msg-id 200107041504.f64F4uG05585@candle.pha.pa.us
обсуждение исходный текст
Ответ на Re: Re: Backup and Recovery  (ncm@zembu.com (Nathan Myers))
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> On Wed, Jul 04, 2001 at 10:37:57AM +0200, Zeugswetter Andreas SB wrote:
> > 
> > > I imagine a daemon extracting redo log entries from WAL segments, 
> > > asynchronously.  Mixing redo log entries into the WAL allows the WAL 
> > > to be the only synchronous disk writer in the system, a Good Thing.
> > 
> > This comes up periodically now. WAL currently already has all the info
> > that would be needed for redo (it actually has to). 
> 
> The WAL has the information needed to take a binary table image
> from the checkpoint state to the last committed transaction.
> IIUC, it is meaningless in relation to a pg_dump image.
> 

Also, I expect this will be completed for 7.2.

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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