On 10/12/23 19:15, Michael Paquier wrote:
On Thu, Oct 12, 2023 at 10:41:39AM -0400, David Steele wrote:
After some more thought, I think we could massage the "pg_control in
backup_label" method into something that could be back patched, with more
advanced features (e.g. error on backup_label and pg_control both present on
initial cluster start) saved for HEAD.
I doubt that anything changed in this area would be in the
backpatchable zone, particularly as it would involve protocol changes
within the replication commands, so I'd recommend to focus on HEAD.
I can't see why there would be any protocol changes, but perhaps I am
missing something?
One thing that does have to change, however, is the ordering of
backup_label in the base tar file. Right now it is at the beginning but
we need it to be at the end like pg_control is now.
I'm working up a POC patch now and hope to have something today or
tomorrow. I think it makes sense to at least have a look at an
alternative solution before going forward.
Regards,
-David
