> You would need to wrap the function creation calls into some automation to generate and store those diffs, comparing it back, etc, but that may be doable. I would also generate new diffs right after major version updates of the database (a before and after of the output of pg_get_functiondef, applied to the stored diff?). I wonder whether that would tie the sanity check to a particular PG version. I mean, pg_get_functiondef output being a server runtime artifact it might well change between server versions, no ? Best, Karsten
