Hi,<br> I find that Union of 2 polygon shape files is not what is expected from other FOSS GIS like GRASS etc. I can send two small shape files with a few polygons and the anticipated result. Pl let me know to whom I should mail it for help, such that UNION with PostGIS can be used after necessary modifications.<br> <br> This will clear a roadblock for me in a exercise on Mineral prognastication using FOSS GIS.<br> Ravi Kumar<br> <p>
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