[postgis-users] Geodetic support, 3D support, arc support.

[David Blasby]

> Both: Are datum transformations working correctly with current PostGIS
> release?

Yes - they have been since the original PROJ4 integration.  Do you know 
of any problems?

> And are spatial operations working correctly regarding the SRS, the
> included objects
> are assigned to?

No - postgis assumes things are planar.  There are a few functions for 
calculating lengths and simple distances on an ellipsoid.

dave