title: Correct datatype for latitude and longitude? (in activerecord)
body: <p>Should I store latitude and longitude as strings or floats (or something else)?</p>
  
  <p>(I'm using activerecord / ruby on rails, if that matters).</p>
  
  <p>Update:</p>
  
  <p>Mysql in development and postgresql in production (why does it matter?)</p>