On Thu, May 28, 2015 at 08:47:07AM +0100, Simon Riggs wrote: > We could have pg_upgrade increment the timeline and allow for missing > history files, but that doesn't fix problems with non-pg_upgrade > upgrades, which also should never be sharing WAL files from previous > major versions. > > > Maybe, but I thought we had a high respect for backwards compatibility and we > clearly just broke quite a few things that didn't need to be broken.
I can't break something that was never intended to work, and mixing WAL from previous major versions was never designed to work. > Hmm, it looks like the change to TimeLine 1 is just a kludge anyway. The rule > that TimeLine 1 doesn't need a history file is itself a hack. > > What we should be saying is that the last timeline doesn't need a history > file. > Then no change is needed here. Yes, that would make a lot more sense than what we have now, but this had to be backpatched, so reverting to the 9.3 and earlier behavior seemed logical. -- Bruce Momjian <br...@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + Everyone has their own god. + -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
