Re: Issue with point_ops and NaN

At Wed, 31 Mar 2021 09:26:00 +0900, Michael Paquier <michael@paquier.xyz> wrote in 
> On Tue, Mar 30, 2021 at 11:39:40PM +0800, Julien Rouhaud wrote:
> > On Tue, Mar 30, 2021 at 11:02:32AM -0400, Tom Lane wrote:
> >> Agreed --- one could make an argument for either 'false' or NULL
> >> result, but surely not 'true'.
> > 
> > I would think that it should return NULL since it's not inside nor outside the
> > polygon, but I'm fine with false.
> 
> Yeah, this is trying to make an undefined point fit into a box that
> has a  definition, so "false" does not make sense to me either here as
> it implies that the point exists?  NULL seems adapted here.

Sounds reasonable.  The function may return NULL for other cases so
it's easily changed to NULL.

# But it's bothersome to cover all parallels..

Does anyone oppose to make the case NULL?  If no one objects, I'll do
that.

regards.

-- 
Kyotaro Horiguchi
NTT Open Source Software Center