[postgis-users] Extension to high dimensions

[strk at refractions.net]

On Fri, Mar 25, 2005 at 11:38:44PM -0600, Tiger Wings wrote:
> I have a large dataset with 2D, 3D(x, y, z) or 4D(+time).
> Does PostGIS have the ability to index those data and do the queries like:
> select * from table where point(x,y,z) @ cubes

Indexing is 2D only. You can nonetheless use
minz(box3d(geom)), maxz(box3d(geom)) to explicitly
check for range intersection.

--strk;