Tom Lane writes: > The IMMUTABLE marker is a promise from you to the system that it is safe > to optimize away multiple calls to the function. It is not a promise > from the system to you that the system will expend unlimited amounts of > energy to detect duplicate calls.
Nicely put. Thanks! BTW, this explanation should go into the manual. Regards, Fernando. ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
