Greetings all,
My st_intersection() of two multipolygons returns an empty geometry: no
problems, as it should. When I ask for its st_geometrytype() I am told
it is "ST_Geometry", and I can live with that. When I ask for its
st_astext() I get "GEOMETRYCOLLECTION EMPTY," and that by itself I can
also live with. However, in combination I find those answers
inconsistent and potentially confusing for writing geometry manipulation
code. And also, isn't the OGC standard SF99 demanding that geometry
collections always have at least one member geometry? Or am I missing
something here?
Rolf
International Institute for Geo-Information Science and Earth Observation (ITC)
Chamber of Commerce: 410 27 560
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