The [`LargeObjects`](http://hackage.haskell.org/packages/archive/postgresql-simple/0.1/doc/html/Database-PostgreSQL-Simple-LargeObjects.html), [`Notifications`](http://hackage.haskell.org/packages/archive/postgresql-simple/0.1/doc/html/Database-PostgreSQL-Simple-Notification.html), and [`Ok`](http://hackage.haskell.org/packages/archive/postgresql-simple/0.1/doc/html/Database-PostgreSQL-Simple-Ok.html) modules need some documentation.
