[Openstreetmap] major db refactoring and GPS data

[Immanuel Scholz]

Hi,

> I've noticed in the gps data table we have fields for:
>
> * horizontal dilution

use property "horizontal dilution=xxx"

> * vertical dilution

use property "vertical dilution=xxx"

> * number of visible satellites

use property "visible satellites=xxx"

> * quality

use property "quality=xxx"


(I think you get the point I want to make ;-)


Ciao, Imi.