Patrick, On Friday, September 13, 2013, Patrick Dung wrote: > > >What? That's absolutely *not* required for pg_upgrade to work. In > >general, I would recommend that you make a copy of the database, but > >it's certainly not required. > > I mean the old version and new version would need to take up disk space on > the server. > Thus roughly doubled the disk space used. >
And I'm telling you that pg_upgrade does NOT require that. It has a mode which allows an in-place upgrade (using hard links) that only requires a bit of extra disk space- certainly no where near double on a database of any size. Thanks, Stephen
