> Our old environment used per-user bayesian databases, but now we've
> decided to use one that is site-wide.
> The thing is that some users managed to train their bayes filters
> well and we don't want to loose it.
hope thay have the ham/spam mails still, in that case its possible to
relearn bayes from it
> So is it possible to configure spamassassin to use both global and
> per-user bayesian databases?
that will be a bug report for supporting it, bayes db is possible to
migrade from pr user to global, but from global to pr user is more
complicated bayes wide, here i have not tryed make a sa-learn --backup
and --restore on another user, it might miss --restore-merge to do what
you like to do
> Or is it possible to import one database to another _without_
> overwriting the second one?
yes bayes is pr user so 2 or more users can use the single id user in