Re: NULLs and stuff

[Ann W. Harrison]

> 
> The problem is that NULL values sort together with numeric zero. 

I may have been carried away with the compatibility issue and
missed something more important.  NULL is supposed to sort first -
meaning that nulls come before all values, not just before zero.
How does extending the zeros help the case where some of the
stored values are negative?

Best,

Ann