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Re: WAL feature

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: The Hermit Hacker <scrappy(at)hub(dot)org>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: WAL feature
Date: 2001-04-27 22:16:28
Message-ID: 200104272216.f3RMGTw29842@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
> On Fri, 27 Apr 2001, Bruce Momjian wrote:
> 
> >
> > WAL was a difficult feature to add to 7.1.  Currently, it is only used
> > as a performance benefit, but I expect it will be used in the future to
> > add new features like:
> >
> > 	Advanced Replication
> 
> How?

I guess other hosts could read the WAL to find out what changed.

> 
> > 	Point-in-time recovery
> 
> I thought that was understood from Vadim's explanations?

Yes, I am just reiterating that WAL may be related to future new
features.

> 
> > 	Row reuse without vacuum
> 
> How?  Didn't even see these as being related ...

It may be.  Not sure.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

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