Here you go:
Code:
calibre-debug -c "import cPickle, pprint; from calibre.library import db; db = db(); ans = [(d[0], cPickle.loads(bytes(d[1]))) for d in db.conn.get('SELECT id,data from conversion_options')]; print '\n\n'.join(['id: %s\n%s'%(id, d) for id, d in ans])"