Re: user defined function

Yl Zhou  writes:
> But I have to use 7.3 due to some limitations. Can I do it in 7.3?

Probably, but I forget how (and I can guarantee that it will break
when you do move to 8.0 or later, because we changed the internal
representation of rowtype arguments).  You'd be *much* better off to
spend your time fixing whatever it is that's keeping you on 7.3.

			regards, tom lane