Charlie ,
neither of those polygons are valid
repeating points, self intersecting and the second one is not a closed
linestring
C.
Charlie Savage wrote:
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))')))
"GEOMETRYCOLLECTION EMPTY"
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).
Charlie
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