Re: argument against using '() for null values? ([Chicken-users] DBI)

[Ozzi]

> Vectors are currently used in the Postgres egg to represent date-time
> values. Not saying it's good, but there it is. (BTW, a dbapi needs
> consistent date/time support too...)
>
> In Common Lisp, NIL is the same as '(), and both mean "false". In
> Scheme we have an explicit #f. For the same reasons we should have an
> explicit #<sql-null>. It is important that (sql-null? (sql-null)) is
> #t, and (sql-null? anything-else) is #f.
>
> >  Since SQL NULL values are common, I really like the simple null? test. It's 
> > intuitive.
>
> How is (sql-null?) harder or less intuitive?

It's not harder, but not being able to use null? to test for NULL is 
counterintuitive in my eyes.

Count me as on the fence I guess, between null void and sql-null.