On Wednesday, January 10, 2018, Marco Piovan <mpiovan(at)workwave(dot)com> wrote:
> The column is not marked as NOT NULL but a valid constraint "CHECK
> (column IS NOT NULL)" exists.
>
> I haven't found a way to use that specific constraint and avoid the table
> rescan.
>
It probably doesn't exist then, which is not that surprising; no one
foresaw people using a check constraint for not null when an explicit
specifier exists.
David J.