Alexander Korotkov <a.korot...@postgrespro.ru> writes: > For me, it's crucial point that pluggable storages should be able to have > different MVCC implementation, and correspondingly have full control over > its interactions with indexes. > Thus, it would be good if we would get consensus on that point. I'd like > other discussion participants to comment whether they agree/disagree and > why. > Any comments?
TBH, I think that's a good way of ensuring that nothing will ever get committed. You're trying to draw the storage layer boundary at a point that will take in most of the system. If we did build it like that, what we'd end up with would be very reminiscent of mysql's storage engines, complete with inconsistent behaviors and varying feature sets across engines. I don't much want to go there. regards, tom lane -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers