Re: [Virtuoso-users] SPARQL Construct with optionals behavior in Virtuoso

Hi Manuel, I have tested the query you provided against empty default Virtuoso 6.1.3 and 6.1.2 databases, and do get results returned: @prefix rdfs: . @prefix owl: . owl:Thing rdfs:label "Thing" . owl:Class

[Virtuoso-users] SPARQL Construct with optionals behavior in Virtuoso

Hi, I am running OpenLink Virtuoso version 06.01.3127, on Linux (x86_64). My question is the following. I have a SPARQL construct query with complex optionals that returns no results. It looks like ... CONSTRUCT { ?s ?o } WHERE { ?s