[Mulgara-general] Using Lucene from SPARQL

[Giulio Paci]

Hi to all!
     I've just started doing some experiments using Lucene with Mulgara, 
but I only managed to get partial success. My goal is to get both the 
search results and their score using SPARQL.

The following TQL query is working as expected:
"select $uri $score from <rmi://my#lucene>
where
$uri <http://mulgara.org/mulgara#search> $q in <rmi://my#lucene>
and $q <http://my/my.owl#hasDescription> 'querystring' in <rmi://my#lucene>
and $q <http://mulgara.org/mulgara#score> $score in <rmi://my#lucene>"

Nevertheless it is not possible to remove any of the "in 
<rmi://my#lucene>" or the query won't give any result, even with the 
default graph set to "<rmi://my#lucene>".

I'm trying the following SPARQL query without success:
"select ?uri ?score
  from <rmi://my#lucene>
  where
  {
   graph <rmi://my#lucene>
   {
    ?uri <http://mulgara.org/mulgara#search> ?q
    . ?q <http://my/my.owl#hasDescription> 'querystring'
    . ?q <http://mulgara.org/mulgara#:score> ?score
   }
  }"

Does anyone knows how can I solve this issue? Am I doing something wrong?

The following query is working:
"select ?uri
  from <rmi://my#lucene>
  where
  {
   graph <rmi://my#lucene>
   {
    ?uri <http://my/my.owl#hasDescription> 'querystring'
   }
  }"


Any help is appreciated.
Bests,
     Giulio.