I have this error from time to time writing queries: Variable '_::trans_subj_11_6' is used in subexpressions of the query but not assigned
Often it "goes away" unchecking the "Strict checking of void variables" option and so not appear calling the sparql endpoint via rest. In this case the error show up when using 2 optional with a recursive property path in each of them. Removing a recursion or an optional the error does not occour anymore. Here the query PREFIX schema: <http://schema.org/> CONSTRUCT { <http://sapienzadigitallibrary.example.it/identifier/RMSDIGILAB_ARCHIVICOMPUTER> schema:name ?elValue . <http://sapienzadigitallibrary.example.it/identifier/RMSDIGILAB_ARCHIVICOMPUTER> schema:name ?subjectComplexTopic. } WHERE { OPTIONAL { <http://sapienzadigitallibrary.example.it/identifier/RMSDIGILAB_ARCHIVICOMPUTER> rdf:rest*/rdf:first ?elValue . } OPTIONAL { <http://sapienzadigitallibrary.example.it/identifier/RMSDIGILAB_ARCHIVICOMPUTER> (rdf:rest/rdf:first)* ?subjectComplexTopic. } } Here the url on the query on dbpedia (no expected result): http://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&query=PREFIX+schema%3A+%3Chttp%3A%2F%2Fschema.org%2F%3E%0D%0ACONSTRUCT+{%0D%0A%3Chttp%3A%2F%2Fsapienzadigitallibrary.uniroma1.it%2Fidentifier%2FRMSDIGILAB_ARCHIVICOMPUTER%3E+schema%3Aname+%3FelValue+.%0D%0A%3Chttp%3A%2F%2Fsapienzadigitallibrary.uniroma1.it%2Fidentifier%2FRMSDIGILAB_ARCHIVICOMPUTER%3E+schema%3Aname+%3FsubjectComplexTopic.%0D%0A}%0D%0AWHERE+{%0D%0AOPTIONAL%0D%0A{%0D%0A+%3Chttp%3A%2F%2Fsapienzadigitallibrary.uniroma1.it%2Fidentifier%2FRMSDIGILAB_ARCHIVICOMPUTER%3E+rdf%3Arest*%2Frdf%3Afirst+%3FelValue+.%0D%0A}%0D%0AOPTIONAL%0D%0A{%0D%0A%3Chttp%3A%2F%2Fsapienzadigitallibrary.uniroma1.it%2Fidentifier%2FRMSDIGILAB_ARCHIVICOMPUTER%3E+%28rdf%3Arest%2Frdf%3Afirst%29*+%3FsubjectComplexTopic.%0D%0A}+%0D%0A}%0D%0A%0D%0A%0D%0A&format=text%2Fx-html%2Bul&timeout=30000&debug=on Thanks Nicola ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
