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[Robert Woodcock]

On Thu, Dec 06, 2007 at 09:15:04PM -0800, Rob Smith wrote:
> A lot of webapps transparently 'upgrade' the database scheme on first
> run after a update. It's not always so simple to roll back from a db
> that is now upgraded.
>
> Also, if the software doesn't upgrade the db, you might end up with a
> non-working app because it requires manual updates to the db.

That's the case regardless of whether you are using a package or not,
however it's very often the package maintainers who take the initiative to
write those schema upgrade/downgrade scripts.

If a schema downgrade script doesn't exist, then you either write one, make
the changes manually, or restore your database from backup. If you pick the
latter option, hopefully you've made the decision to downgrade before too
many important changes have been made.

If you don't want your Keystone Koworkers to errantly update a particular
package, put it on hold.
-- 
Robert Woodcock - rcw at blarg.net
"Learn more about paranoids - follow them around."
	-- seen on slashdot