At 06:38 2013-03-19, Jeff Johnson <jeff@san-dc.com> wrote:

>Lew: That is what I meant by doing the math, but it doesn't. I

>would expect date() - {//} to be = date(). It probably doesn't

>because it is an "empty"

>date and not a valid date. As I mentioned previously I don't intend

>to do math, I just want to be able to check for an empty datetime().

Since an empty date is not a valid date, why would you expect

date arithmetic on it to work?

[snip]

Sincerely,

Gene Wirchenko

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