On Wed, 2008-06-04 at 11:37 -0400, Tom Lane wrote:
> This thread is getting out of hand, actually.
Agreed. We should start new threads for specific things. Please.
> However, since by definition pg_control doesn't change in a minor
> upgrade, there isn't any easy way to enforce a rule like "slaves must be
> same or newer minor version as the master". I'm not sure that we
> actually *want* to enforce such a rule, though.
Definitely don't want to prevent minor version mismatches. We want to be
able to upgrade a standby, have it catch up with the master then
switchover to the new version. Otherwise we'd have to take whole
replicated system down to do minor upgrades/backouts. Ugh!
-- Simon Riggs www.2ndQuadrant.comPostgreSQL Training, Services and Support
