[Nepomuk] Query Generator Problem

[Sebastian Trüg]

I tried this query. While it is of course pointless to have the
additional hasTag without a "FILTER(?v2!=?v3)" it does not seem to pose
a problem to virtuoso here.

What exactly do you mean by "screwing up"?

On 03/20/2012 08:25 PM, Vishesh Handa wrote:
> Hey Sebastian
> 
> If you get a chance please look at this -
> 
>  1.
>     nepomukqueryservice(21826)/nepomuk (query service)
>     Nepomuk::Query::SearchRunnable::run: "<?xml version="1.0"?><query
>     limit="6" offset="0" fullTextScoring="false"
>     fullTextScoringOrder="desc" flags=""><and><type
>     uri="http://www.semanticdesktop.org/ontologies/2007/08/15/nao#Tag"/><comparison
>     property="http://www.semanticdesktop.org/ontologies/2007/08/15/nao#hasTag"
>     comparator=":" inverted="true"/><comparison
>     property="http://www.semanticdesktop.org/ontologies/2007/08/15/nao#hasTag"
>     comparator=":" aggregate="count" sortWeight="1" sortOrder="desc"
>     inverted="true"/></and></query>
>  2.
>     " "select distinct ?r where { { ?r a
>     <http://www.semanticdesktop.org/ontologies/2007/08/15/nao#Tag> . ?v2
>     <http://www.semanticdesktop.org/ontologies/2007/08/15/nao#hasTag> ?r
>     . ?v3
>     <http://www.semanticdesktop.org/ontologies/2007/08/15/nao#hasTag> ?r
>     . } . ?r
>     <http://www.semanticdesktop.org/ontologies/2007/08/15/nao#userVisible>
>     ?v1 . FILTER(?v1>0) . } ORDER BY DESC ( count(?v3) ) LIMIT 6"
> 
> 
> The query has this twice, and it's screwing up virtuoso -
> 
> ?v2 <http://www.semanticdesktop.org/ontologies/2007/08/15/nao#hasTag> ?r .
> ?v3 <http://www.semanticdesktop.org/ontologies/2007/08/15/nao#hasTag> ?r .
> 
> Do you think you could update the Query Generator to handle cases like this?