Should I store latitude and longitude as strings or floats (or something else)?
(I'm using activerecord / ruby on rails, if that matters).
Update:
Mysql in development and postgresql in production (why does it matter?)
This is what I use:
add_column :table_name, :lat, :decimal, {:precision=>10, :scale=>6}
add_column :table_name, :lng, :decimal, {:precision=>10, :scale=>6}