[redland-dev] OPTIONAL strangeness

[Danny Ayers]

On 6/23/05, Dave Beckett <dave.beckett at bristol.ac.uk> wrote:
> On Thu, 2005-06-23 at 13:14 +0200, Danny Ayers wrote:
> > Either I still don't get OPTIONAL or there's something odd going on
> > (Rasqal 0.9.10). I'm in a rush to get something finished, haven't got
> > a test case, but here's an example of something I didn't expect:
> 
> Maybe I should say I don't entirely trust the query engine
> implementation of optional - others have reported similar things.
> 
> I will shortly be ripping out the core of the engine to do it a
> different way and in order to handle nested {}s and UNION (gack!).

Cool. (I don't envy you the job ;-)

> I tried it before lunch and could get this response.  But now, it just
> gives a python error.

Right, thanks - I've probably broken it again.

> > The query form/data I'm using is at http://pragmatron.org/query.html
> 
> I think I really need the data to debug this.

I'll see what I can do (I'm currently removing a load of old triples
using an incredibly slow script...).

Cheers,
Danny.

-- 

http://dannyayers.com