Re: Proposal: vacuum and autovacuum parameters tocontrol freezing

On Sun, 2006-11-05 at 14:47 -0500, Gregory Stark wrote:
> "Simon Riggs" <simon(at)2ndquadrant(dot)com> writes:
>
> > vacuum_freeze_min The latest TransactionId that will be "frozen" during
> > a VACUUM is calculated by CurrentTransactionId - vacuum_freeze_min.
> >
> > vacuum_freeze_max
> > The maximum age, calculated as distance from CurrentTransactionId, that
> > will be allowed before a autovacuum will be forced for that database
> > object.
>
> I think it's clearer if "min" and "max" are considered adjectives and always
> have a subject they modify. Otherwise it's unclear what they refer to.
>
> So "vacuum_freeze_min_age" and "vacuum_freeze_max_age" instead.
>
> That way it's unambiguous which is which. Ie, that it's minimum and maximum
> age and not minimum and maximum transaction id which would be the other way
> around.

Sounds logical. Hadn't seen that you could take it both ways.

--
Simon Riggs
EnterpriseDB http://www.enterprisedb.com