Peter Eisentraut wrote: > > Tom Lane writes: > > > mlw <[EMAIL PROTECTED]> writes: > > > (1) const or constant > > > (2) cacheable > > > (3) volatile > > > > I was wondering about "const" for case 1, also. I think there is some > > precedent for using "const" with this meaning in other programming > > languages. > > I think the meaning of "const" tends to be "cannot change the result" -- > which may actually make sense in SQL in a future life if you can pass > around table descriptors or cursor references.
A function, such as sin(x) could be considered constant for the result based on value 'x' ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
