Merlin Moncure <mmonc...@gmail.com> writes: > On Tue, Jun 12, 2012 at 7:42 AM, Robert Haas <robertmh...@gmail.com> wrote: >> Instead of trying to maintain MVCC semantics, maybe we should just >> have something like COPY (FROZEN) that just writes frozen tuples into >> the table and throws MVCC out the window. Seems like that would be a >> lot easier to implement and satisfy basically the same use cases.
> -1: The situation with hint bit i/o patterns on many workloads is > untenable but it's not safe to assume MVCC can be ditched in those > workloads. Also, COPY does nothing about deletes. Neither does the > proposal as stated but I think it's easier to generalize into 'I want > to put hint bits in now so I don't have to deal with them later'. Dunno, I think Robert's idea has a fair amount of merit: mainly because it will probably satisfy 90% of use cases for 1% of the work. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers