[postgis-devel] POINT EMPTY in WKB

[Mateusz Loskot]

On 06/12/10 21:00, Paul Ramsey wrote:
> It's just POINT EMPTY. Everything else has a representation. In fact,
> I think Mats checked for me and SQLServer uses the same semantic as I
> am for empties in WKB, npoints=0 or ngeoms=0 or nrings=0 depending on
> the type being represented.
> 
> And I think for POINT EMPTY they transform to GEOMETRYCOLLECTION
> EMPTY. (which is what we do now, see
> 
>   SELECT AsText('POINT EMPTY'::geometry);

I think you're referring to this post and comments:

http://mateusz.loskot.net/2010/02/26/sqlgeometry-and-point-empty-in-wkb/

Regards,
-- 
Mateusz Loskot, http://mateusz.loskot.net
Charter Member of OSGeo, http://osgeo.org
Member of ACCU, http://accu.org