=?ISO-8859-2?Q?pasman_pasma=F1ski?= <pasman.p@xxxxxxxxx> writes: > My english is not perfect, by accumulative i think about monotonically > increasing function. Oh, I see how that would work. I can't get real excited about it though. The use-case seems a bit narrow, and the amount of complexity added to the btree search mechanism (thereby slowing down all btree searches) would be significant. Furthermore, unless f() is pretty cheap to evaluate, you'd end up preferring an index on f(x) anyway, because that can be searched without any new evaluations of f(). regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
