On Saturday, October 13, 2018, Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> On Sat, Oct 13, 2018 at 12:25:38PM +0300, KES wrote:
> > >or NULL if any of the comparisons result in unknown
> > result in unknown??
>
> Well, SQL has a three-valued logic, and UNKOWN values are treated like
> NULL. For me they have always been the same, and I would like to avoid
> "unknown" in this context, if possible.
>
>
I was just trying to avoid using the word null twice in the same sentence
but it’s not a strong aversion.
David J.