BTW why I needed it? Maybe you'd need too:

I have a conversion in progress and I have date/datetime fields which are empty on VFP side but NULL on SQLserver side. I created a code that does the upsizing + generates CA classes with code like this in AfterCursorFill:

replace myDate with {} for isnull(myDate)

rather than checking each place in application where some calculation is done with empty() - many date/datetime fields. It works just fine. But then a code something like this:

scan
endscan

takes ages to complete. It doesn't do anything but very sloooow (ie: measured as 14+ seconds on 5K records). Strangely a code like this:

replace all f1 with f1

takes only 0.001. Go figure:)
Cetin