Re: Calling the same function more than once with the same arguments

"Clodoaldo Pinto" <clodoaldo.pinto@gmail.com> writes:
> I'm building a function caller() in which a certain function called()
> will be called many times in from clauses with the same arguments and
> I'm wondering if is there a performance penalty for that or if the sql
> engine is smart enough to call called() only once.

No, it isn't.

            regards, tom lane