Re: Document NULL

On Wed, May 1, 2024 at 9:47 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> David Rowley <dgrowleyml(at)gmail(dot)com> writes:
> > Let's bash it into shape a bit more before going any further on actual
> wording.
>
> FWIW, I want to push back on the idea of making it a tutorial section.
> I too considered that, but in the end I think it's a better idea to
> put it into the "main" docs, for two reasons:
>
>
Version 2 attached. Still a draft, focused on topic picking and overall
structure. Examples and links planned plus the usual semantic markup stuff.

I chose to add a new sect1 in the user guide (The SQL Language) chapter,
"Data". Don't tell Robert.

The "Data Basics" sub-section lets us readily slide this Chapter into the
main flow and here the NULL discussion feels like a natural fit. In
hindsight, the lack of a Data chapter in a Database manual seems like an
oversight. One easily made because we assume if you are here you "know"
what data is, but there is still stuff to be discussed, if nothing else to
establish a common understanding between us and our users.

David J.