A Quick Overview of Relational SPARQL

I've put a quick overview of the relational SPARQL operations that I developed in JRDF onto the Google Code Wiki, called Relational SPARQL Operations. This is just a reworking of what I've done in my thesis in hopefully a more digestable way. I hope I'll have time to expand it and the JRDF Wiki generally to include more documentation on things like the other features of JRDF.