Sean Chittenden <sean@chittenden.org> writes:
> ... That said, if things are working correctly in CVS, would you still
> recommend a trigger over a rule?
Yes I would. I don't think you've thought carefully enough about the
implications of the statement that rules are macros... the perennial
problem with macros is multiple evaluations of an argument, and if the
argument has side-effects (like nextval()) you *will* get bit.
regards, tom lane