- From: Andy Seaborne <andy.seaborne@epimorphics.com>
- Date: Wed, 06 Oct 2010 09:01:20 +0100
- To: Axel Polleres <axel.polleres@deri.org>
- CC: SPARQL Working Group <public-rdf-dawg@w3.org>
On 05/10/10 21:59, Axel Polleres wrote:
> just to be clear... NOT is just syntactic sugar for !, yes? i.e.
Syntactically, no; functionally yes.
>
> FILTER (NOT EXISTS {P} ) = FILTER ( ! (EXISTS {P} ) ) , yes?
FILTER NOT EXISTS {P}
is legal - this is a syntax issue.
NOT EXISTS is a single token.
! EXISTS is two tokens.
> and likewise for NOT IN...
Same.
> is that observation correct?
http://lists.w3.org/Archives/Public/public-rdf-dawg/2010JulSep/0444.html
> Thanks for clarification,
>
> Axel
>
>
Received on Wednesday, 6 October 2010 08:01:58 UTC