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MySQL spatial refers to the Extensions for Spatial Data, that enable the generation, storage, and analysis of geographic features.

18 votes

Would PostGIS offer an advantage over MySQL for a produce farm application?

If only because you will have a lot more choice in third-party applications for generating maps of your information (mapserver, geoserver, etc, etc) loading data (ogr2ogr, fme, etc) PostGIS would make …
Paul Ramsey's user avatar
2 votes

Why I obtain different values calculating distance between two point in the space using this...

Google Earth is probably calculating distance over the earth as a spheroid, taking account for the not-quite-spherical nature of the earth. Also, your earth radius is probably a smidge big, try 6371 k …
Paul Ramsey's user avatar