Robert Haas wrote: > On Wed, Jul 20, 2011 at 3:29 PM, Bruce Momjian <br...@momjian.us> wrote: > > Robert Haas wrote: > >> On Wed, Jul 20, 2011 at 2:53 PM, Bruce Momjian <br...@momjian.us> wrote: > >> >> I am assuming that's a "yes" to both the directions: older -> newer , > >> >> and > >> >> newer -> older minor releases. > >> > > >> > Yes, I believe both directions would work unless we mentioned it the > >> > release notes, in which cases it might not work, or might work older to > >> > newer but newer to older. > >> > >> I don't see how this would get broken in a minor release. ?We'd have > >> to change the WAL format or the tuple format, which is definitely not > >> minor release material. > > > > If there was a bug in the xlog stream content we might not be able to > > fix it without breaking compatibility. ?Rare, but possible. > > OK, fair enough. But I think the likelihood is extremely low.
It would require a case where we couldn't distinguish a valid from an invalid WAL entry, or the streaming used by the old server was sufficiently broken that we didn't want to support it. -- Bruce Momjian <br...@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + It's impossible for everything to be true. + -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
