Date: Sun, 1 Jun 2008 18:22:52 -0700 (PDT)
On May 31, 6:59 pm, paul c <toledoby..._at_ac.ooyah> wrote:
> David BL wrote:
> ... [On a
> > side note - it seems to make sense to allow mathematically defined
> > relations as read only first class citizens so that selection is just
> > a join].
> > ...
> What else could it be?
It's a language issue. As an example, in tutorial D a selection may be written as
R WHERE x < 10
R JOIN x < 10
This gives me the impression that the relation x<10 isn't treated as a first class citizen. Received on Sun Jun 01 2008 - 20:22:52 CDT