Here are Felix ("fefe") von Leitner's comments http://translate.google.com/translate?js=n&sl=de&tl=en&u=htt...
Not that I would share his views, but he is a relatively well known German security expert and free software activist (dietlibc). He knows GnuPG pretty well and basically says: Werner, you don't deserve our donations, stop crying, get a day job and maintain GnuPG in your spare time.
If you're interested in query compilation, check out the HyPer DBMS prototype at [1]. It efficiently compiles SQL (SQL92++) to super-fast LLVM code (faster than Vitesse). It's not open source, but you can download a binary [4] or try it out online using the "WebInterface" link and read about the query compiler here [2]. It also has lots of other goodies, like SIMD-powered CSV parsing (about 4x faster than Postgres) [3].
Rumor has it that the prototype will be commercialized soon ;)
EDIT: It also has NUMA-aware multi-threaded query execution.