[postgis-devel] POINT EMPTY in WKB

[Paul Ramsey]

It's legal and it's a whole category of empty shit I am not handling
correctly. I only recognize the case of

MULTIPOINT EMPTY

and MULTIPOINT (...stuff...) is assumed to be real stuff.

GEOMETRYCOLLECTION(POINT EMPTY, POINT EMPTY) will be picked up though.

Oy vey.

P.

On Mon, Dec 6, 2010 at 2:56 PM, Paragon Corporation <lr at pcorp.us> wrote:
> I see the difference now.
>
>  SELECT Geometry::STGeomFromText('MULTIPOINT(EMPTY,  EMPTY)',0).STAsText();
>
>  SELECT Geometry::STGeomFromText('MULTIPOINT(EMPTY,
> EMPTY)',0).STNumGeometries();
> Yields --> 2 geometries
>
> A multipoint with 2 empty points
>
> Vs.
>
> An empty multipoint collection
>
>
>  SELECT Geometry::STGeomFromText('MULTIPOINT EMPTY',0).STAsText();
>
>  SELECT Geometry::STGeomFromText('MULTIPOINT EMPTY',0).STNumGeometries();
>
> 0 geometries.
>
>
> Is the first considered legal in ISO or is this purely a  Microsoft
> invention?
>
>
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