GeneratedSQL from Ultrawrap

Hi everybody,

I updated the GeneratedSQL page [1] and showed what Ultrawrap does when it
translated SPARQL to SQL.

If wanted, I could explain this during our telcon.

I also quickly did the experiments on SQL Server that Richard showed last
time on MySQL. For the trivial subquery, SQL Server is smart, and treats
both queries exactly the same. For the example, SQL Server does not compile
out self joins either. However, the overhead is just 1.5 times slower. My
guess is that for other commercial databases, the results should be the
same. Conclusion: MySQL does not have good optimization (I think we all knew
that).

[1] http://www.w3.org/2001/sw/rdb2rdf/wiki/GeneratedSQL

Juan Sequeda
+1-575-SEQ-UEDA
www.juansequeda.com