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Re: Rollback in Postgres

From: Lewis Cunningham <lewisc(at)rocketmail(dot)com>
To: pgsql-sql(at)postgresql(dot)org, Kaare Rasmussen <kaare(at)jasonic(dot)dk>
Subject: Re: Rollback in Postgres
Date: 2008-07-14 20:51:07
Message-ID: 787871.99753.qm@web35601.mail.mud.yahoo.com (view raw or flat)
Thread:
Lists: pgsql-sql
--- On Mon, 7/14/08, Kaare Rasmussen <kaare(at)jasonic(dot)dk> wrote:

> But yes, it has to be enabled, and yes it has to have a
> performance cost 
> somehow, but people are requesting it, and somehow I

AFAIK, It is built from undo so there is no ADDITIONAL overhead.  It just saves the undo that is created anyway for any DML anyway.  That undo is already on disk.  

Lewis R Cunningham

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