[Nepomuk] Some issues on current master

[Marco Martin]

On Thursday 31 May 2012, Sebastian Trüg wrote:
> please see if this patch fixes the issue.
> 
> On 05/31/2012 10:24 AM, Marco Martin wrote:
> > On Thursday 31 May 2012, Marco Martin wrote:
> >> On Thursday 31 May 2012, Sebastian Trüg wrote:
> >>> which version of virtuoso are you using?
> >>> 
> >>> And, yes, the virtuoso branch needs to be merged in kdelibs indeed.
> >> 
> >> i tried on 2 different systems with 6.1.2 and 6.1.4, now i'm trying to
> >> install 6.1.5
> > 
> > with 6.1.5 apparently there is the same issue of parse error (syntax
> > error at exists)

now the query is actually executed, but a query like 

select distinct ?r ?reqProp1 where { { OPTIONAL { ?r 
<http://www.semanticdesktop.org/ontologies/2007/01/19/nie#url> ?reqProp1 . 
FILTER(bif:exists((select (1) where { ?r a [ 
<http://www.semanticdesktop.org/ontologies/2007/08/15/nao#userVisible> 
"true"^^<http://www.w3.org/2001/XMLSchema#boolean> ] . }))) . } }

(similar to what the query api tends to generate now)
just spikes the cpu usage of virtuoso and will never finish

-- 
Marco Martin