Re: When is a record NULL? - Mailing list pgsql-hackers

"David E. Wheeler" <david@kineticode.com> writes:
> How can a record be neither NULL or NOT NULL?

This is per SQL standard.  IS NULL is true if *all* the record's
fields are null; IS NOT NULL is true if *none* of them are.

Yeah, it's a bit dubious, but that's what they said.
        regards, tom lane