1. 2016-03-17 Re: [postgis-users] ST_Force3D and null/unknown altit postgis-u Sandro Santilli 2. 2016-03-17 Re: [postgis-users] ST_Force3D and null/unknown altit postgis-u Denis Rouzaud 3. 2016-03-17 Re: [postgis-users] ST_Force3D and null/unknown altit postgis-u Hugo Mercier 4. 2015-12-07 [postgis-users] ST_Force3D and null/unknown altitude postgis-u Denis Rouzaud