title: Postgis 4326 geometry vs geography
body: <p>After looking through web and Postgis in action book I still don't get 4326 geometry vs geography idea.</p>
  <p>As I understand geometry is a projection of a map to a surface, and geography is 3d representation (WGS86 Model).</p>
  <p>If both of them are 4326, what are benefits of using one over the other and what would be such cases.</p>
  <p>I know that geometry is having more functions, and as they state , those functions can be much faster than geography, but then what is use for geography model if you can use 4326 geometry?</p>
  <p>Edit: When I speak about geometry, I only mean 4326, not other ones.</p>