[Versa] Versa issue: subgraph primitives?

[Uche Ogbuji]

On Mon, 2005-09-05 at 12:31 -0600, Michael Olson wrote:
> >
> >> As for the context-switching syntax, I'm also trying to imagine how
> >> that would work.  It would definately (if all the kinks are ironed
> >> out) be a incredible performance tuning tool for context-aware RDF
> >> datastores.  I would be inclined to move this to a seperate host
> >> language as well, as long as it was as concise and accessible enough
> >> so I wouldn't have to do what I had been doing before (rely heavily on
> >> scope and scoped-subquery) to do that kind of thing.
> >
> > I'm fine with that.  I don't like the proposed { context } query,
> > because I think it's a bit of a hacked special case.  I'd prefer to be
> > sure we have a more general solution, or just leave it out of Versa
> > altogether.
> >
> 
> By a more general solution do you mean be able to extends it to  
> eventually do more then just scoping sub graphs?
> 
> @prefix foo=foo.com
> @variable bar= some query
> @subgraph some query that will scope the next query
> @logging = on
> @some an extension declaration possible?
> and lastly the query
> 
> 
> Is this what you had in mind?

Yes, as I suggested earlier in the thread.

Chime's { context-query } query examples have made me a little more
receptive to that idea, though.


-- 
Uche Ogbuji                               Fourthought, Inc.
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