On Mon, Jan 23, 2012 at 10:21 AM, Andreas Hasenack <panlinux@xxxxxxxxx> wrote: > On Fri, Jan 20, 2012 at 16:45, Nicholson, Brad (Toronto, ON, CA) > <bnicholson@xxxxxx> wrote: >> In the past I've used Slony to upgrade much larger database clusters than yours with minimal down time (I'm talking seconds for the actual master switch). You set up a new replica on the new version and then move the master from old to new. No need to explicitly resync afterwards. > > Would that work to upgrade from, say, 8.4 to 9.1? Using slony? It should. As long as both can support the same version of slony you're good to go. -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin