On 2016-01-03 15:40:01 +0000, Simon Riggs wrote: > I'm happy with this being a simple patch now, not least because I would > like to backpatch this to 9.4 where catalog scans became MVCC. > > A backpatch is warranted because it is a severe performance issue with > replication and we can fix that before 9.5 hits the streets. > > I'll be doing some more testing and checking, so not in a rush.
This seems like a might subtle thing to backpatch. If we really want to go there, ISTM that the relevant code should stew in an unreleased branch for a while, before being backpatched. Andres -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers