Most useful to you will be some number of "ALTER TABLE <foo> DISABLE TRIGGER ALL;" statements near the beginning of the file, and their "ALTER TABLE ... ENABLE TRIGGER ALL;" counterparts near the end of the file.
Have you just not heard of deferred constraints or is there some reason besides deferring constraints that you'd want to use alter table in transactional production code?
I mentioned bulk loading of data. Occasionally that's useful, even in a prod database.
