| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Lewis Cunningham <lewisc(at)rocketmail(dot)com> |
| Cc: | pgsql-sql(at)postgresql(dot)org, Kaare Rasmussen <kaare(at)jasonic(dot)dk> |
| Subject: | Re: Rollback in Postgres |
| Date: | 2008-07-14 20:54:54 |
| Message-ID: | 20080714205454.GL4050@alvh.no-ip.org |
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| Thread: | |
| Lists: | pgsql-sql |
Lewis Cunningham wrote:
> --- 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.
Which means it doesn't work for us, because we don't have UNDO (we only
have REDO).
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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