[postgis-users] Compare SQL Server 2008 Spatial, PostGIS, MySQL functionality

Norman Vine nhv at cape.com
Thu Jul 17 21:42:54 PDT 2008

Paul Ramsey writes
> I'm not that any of the databases use the hipparchus mesh.
> IBM Informix Geodetic might, but I think someone told me they
> *didn't*, as it wasn't "all that".
> IBM Informix Spatial has an R-Tree
> IBM DB2 Spatial I think uses a quadtree
> IBM DB2 Geodetic I think *does* use the hipparchus mesh


DB2 Geodetic uses Spherical Voronoi Tessalation
 eg Hipparcus 'mesh'



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