[geos-devel] GeomUnion Bug?

Charlie Savage cfis at savagexi.com
Fri Sep 7 01:28:57 EDT 2007

This makes sense to me:

SELECT astext(GeomUnion(GeomFromText('POINT(-104 40)'),
  	                GeomFromText('POINT(-105 40)')))

"MULTIPOINT(-105 40,-104 40)"

But this not so much:

SELECT astext(GeomUnion(GeomFromText('POLYGON((-104 40,-104 40,-104 

                                                  40,-104 40,-104 40))'),
                         GeomFromText('POLYGON((-105 40,-105 40,-105
                                                  40,-105 40,-105 0))')))


Is this a bug?  Or is it supposed work this way?  It used to be 
different with Geos 2.2.1 (I assume this is a geos issue so I included 
that mailing list).


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