On Fri, Sep 12, 2014 at 12:02 PM, Robert Haas <robertmh...@gmail.com> wrote: > I think I've said a few times now that I really want to get this > additional data before forming an opinion. As a certain Mr. Doyle > writes, "It is a capital mistake to theorize before one has data. > Insensibly one begins to twist facts to suit theories, instead of > theories to suit facts." I can't say it any better than that.
Well, in the abbreviated key case we might know that with probability 0.99999 that the "memcmp() == 0" thing will work out. In the non-abbreviated tie-breaker case, we'll definitely know nothing. That seems like a pretty fundamental distinction, so I don't think it's premature to ask you to consider those two questions individually. Still, maybe it's easier to justify both cases in the same way, if we can. -- Peter Geoghegan -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
