I find the lambda trick not explicit and obvious enough. I fear I would do something stupid like trigger a side-effect without realising. Again taking an examp

I find the lambda trick not explicit and obvious enough. I fear I would do something stupid like trigger a side-effect without realising. Again taking an example from SQLAlchemy, you can explicitly make a subquery, and then reference it instead of the original Table. A binding more like SQLAlchemy can probably written for RethinkDB.