Re: [Virtuoso-users] query about sparql optional semantics

2008-11-25 Thread Ivan Mikhailov
Peter, The bug is fixed and the fix will appear in the next release of Virtuoso Open Source. For your convenience, the patch for this particlular bug is in the attachment. The patch is for VOS 5.0.9 and not tested on previous versions, including release candidates of VOS 5.0.9 Best Regards, Ivan

Re: [Virtuoso-users] query about sparql optional semantics

2008-11-24 Thread Peter Ansell
Thanks! Peter - Original Message > From: Ivan Mikhailov > To: Peter Ansell > Cc: Virtuoso Users List > Sent: Tuesday, 25 November, 2008 2:36:55 AM > Subject: Re: [Virtuoso-users] query about sparql optional semantics > > Hello Peter, > > Yes this is

Re: [Virtuoso-users] query about sparql optional semantics

2008-11-24 Thread Ivan Mikhailov
Hello Peter, Yes this is a bug and I hope to fix it soon. Best Regards, Ivan Mikhailov OpenLink Software http://virtuoso.openlinksw.com On Sun, 2008-11-23 at 21:06 -0800, Peter Ansell wrote: > Hi all, > > I am not an expert of the semantics of how OPTIONAL works in SPARQL but I am > a little

[Virtuoso-users] query about sparql optional semantics

2008-11-24 Thread Peter Ansell
Hi all, I am not an expert of the semantics of how OPTIONAL works in SPARQL but I am a little surprised at some results I am getting. I am executing the following queries on a copy of the database which is normally at http://go.bio2rdf.org/sparql although it is down at the moment. No results q