"Mikito Harakiri" <mikharakiri_at_ywho.com> wrote in message
news:PLo5b.12$eu1.111_at_news.oracle.com...
>
> "Christopher Browne" <cbbrowne_at_acm.org> wrote in message
> news:bj3q4j$eaohu$2_at_ID-125932.news.uni-berlin.de...
> > I don't see reason to consider it mandatory to apply reduction inside
> > the SQL expression for much the same reason that Common Lisp doesn't
> > assume that all expressions involve REDUCE.
>
> But Lisp is not a gospel. At least in the database world.
>
> If a complex multiargument function can be reduced to dyadic, that's a
very
> nice math property. It maybe worth keeping it at all cost, while trying to
> investigate what else maybe a problem.
MEDIAN would represent such a problem. Actually, any ordered partition would
represent such a problem.
Received on Wed Sep 03 2003 - 11:33:20 CDT
