Right, if you have direct access to the tree it's possible and not really inefficient at all (a modified B+Tree would be my first pick, but I digress). Part of

Right, if you have direct access to the tree it's possible and not really inefficient at all (a modified B+Tree would be my first pick, but I digress). Part of my problem was I was trying to offload as much of the work to SQLite as possible. I think if I were to go back and try again, I would make it a bit further :)