On Fri, Mar 23, 2007 at 05:30:27PM -0500, Kevin Grittner wrote:
> I don't understand -- TRUE OR UNKNOWN evaluates to TRUE, so why would
> the IN need to continue? I'm not quite following the rest; could you
> elaborate or give an example? (Sorry if I'm lagging behind the rest
> of the class here.)
You're right, I'm getting confused with the interaction of NULL and NOT
IN.
The multiple evaluation thing still applies, but that's minor.
Have a nice day,
--
Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.