On Tue, Sep 20, 2016 at 3:21 PM, KGA Official <kga.official@xxxxxxxxx> wrote: > Regarding "are you really going to downgrade again"? > The upgraded postgres will be bundled along with product code changes and > other products. So, if someone finds product issues, they will roll back > everything together. > So, essentially, yes. One requirement of the roll out is that it be possible > to roll-back. Roll-out can be a complicated requirement knowing that sometimes minor releases can introduce new GUC parameters and those can generate WAL records. Though it is a rare fact, it is not impossible, and things are kept compatible as much as possible. Personally I find deploying a backup of PGDATA instead of reusing an existing PGDATA with older binaries after it has run with newer binaries a more iron-solid approach, and I've learnt to be careful with such things.. -- Michael -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general