Re: General semantics
From: Tegiri Nenashi <tegirinenashi_at_gmail.com>
Date: Wed, 19 May 2010 18:46:06 -0700 (PDT)
Message-ID: <46cedb10-c514-4755-a7e3-116b9994b736_at_u20g2000pru.googlegroups.com>
Date: Wed, 19 May 2010 18:46:06 -0700 (PDT)
Message-ID: <46cedb10-c514-4755-a7e3-116b9994b736_at_u20g2000pru.googlegroups.com>
On May 19, 4:58 pm, paul c <toledobythe..._at_oohay.ac> wrote:
> Tegiri Nenashi wrote:
> > ...
> > "relations aren't domains" sounds like some dogma. In my system
> > domains are unary relations (or predicates if the term "relation" is
> > reserved for finite sets of tuples).
>
> In that case, unary relations have more operators than other relations,
> not a complication I'd like to deal with.
I assume by "operators" you mean something other than relational algebra operations. Something like arithmetic plus. I'd suggest the later is actually a relation and one may benefit from making this idea explicit:
http://vadimtropashko.wordpress.com/relational-programming-with-qbql/ Received on Thu May 20 2010 - 03:46:06 CEST