Alvaro Herrera <[EMAIL PROTECTED]> writes: > On Fri, Jul 30, 2004 at 05:53:02AM +0100, Mamta Singh wrote: >> I went thru the site >> http://www.postgresql.org/docs/7.4/static/wal-benefits-later.html
> I see that most of this document is obsolete. Yeah, I was planning to remove that section or at least edit it severely... > I'm pretty sure there's people that don't want UNDO to be implemented. I think the general consensus is that it doesn't offer us anything we need, and the downsides are significant. (Oracle DBAs are well aware of the hazards of having to rely on the transaction log for UNDO --- it does not play well at all with long-running transactions.) regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly