On Thu, 2009-09-17 at 10:21 -0400, Tom Lane wrote:
> Hannu Krosing <hannu@2ndQuadrant.com> writes:
> > On Wed, 2009-09-16 at 21:19 -0400, Tom Lane wrote:
> >> VACUUM FULL CONCURRENTLY is a contradiction in terms. Wishing it were
> >> possible doesn't make it so.
>
> > It depends on what do you mean by "VACUUM FULL"
>
> Anything that moves tuples is not acceptable as a hidden background
> operation,
I did not mean VACUUM FULL to be run as a hidden background operation.
just as something that does not need everything else to be shut down.
> because it will break applications that depend on CTID.
Do you know of any such applications out in the wild ?
> The utility Heikki is talking about is something that DBAs would
> invoke explicitly, presumably with an understanding of the side effects.
Like VACUUM FULL ?
--
Hannu Krosing http://www.2ndQuadrant.com
PostgreSQL Scalability and Availability Services, Consulting and Training