If you use slony to replicate, you CAN have 9.2 on the master and 9.4 on the slave.
On Tue, Sep 6, 2016 at 6:43 PM, John R Pierce <pie...@hogranch.com> wrote: > On 9/6/2016 3:27 PM, Rich Shepard wrote: > > On Wed, 7 Sep 2016, Patrick B wrote: > > 2 - I've never done a Postgres upgrade before, can you give some guide > here? Is usually a easy thing? How long can it take? Is a downtime needed? > > > > I suggest the place to start is 'man pg_upgrade.' It is helpful. > > > pg_upgrade would require both 9.2 (with your existing database directory) > and 9.4 be installed on the same server. > > the easiest way to do this upgrade depends heavily on how large the > database is. 'pg_dumpall -h oldserver | psql -h newserver' might be > simplest for modest data sizes, but way too slow for larger data sets. > > > -- > john r pierce, recycling bits in santa cruz > > If you use slony to replicate, you CAN have 9.2 on the master and 9.4 on the slave. -- *Melvin Davidson* I reserve the right to fantasize. Whether or not you wish to share my fantasy is entirely up to you.