Jürgen,
I have updated the SQL module in the git repository. First and foremost I have renamed ResultValue to SqliteResultValue to better illustrate that it's only required by the SQLite provider. Secondly, I've added documentation to the sql.apl library.
This integrates neatly with the new documentation features I'm building for the Emacs mode.
Please grab the code to integrate into master before releasing 1.4.
Regards,
Elias