Geo Overhaul (work with multiple locations)

[kimchy]

The current geo support does not work well when a document as multiple locations. For this reason, the structure of how geo information is indexed requires changing.

Note, sadly, this requires both reindexing of the data if geo features are used, and requires to predefine the geo_point type for geo location objects (where before, just an object with lat and lon fields were enough).

The geo_point has been changed. Now, a string representation (lat,lon) is always stored under the object name, for example:

{
    "pin" : {
        "location" : {
            "lat" : 40.12,
            "lon" : -71.34
        }
    }
}

Will cause a field called location with the "40.12,-71.34" value to be stored. lat/lon are not stored by default now, since they are not needed, geohash can still be enabled as well.

The new options for geo_point are:

• lat_lon: Set to true to also index a lat and lon fields.
• geohash: Set to true to also index a geohash (under pin.location.geohash in our example).
• geo_precision: The geohash precision. Defaults to 12.

When loading a geo point in a script using the doc[...] notion, a value (for example: doc['location'].value) returns a GeoPoint, which allows to access lat, lon, and geohash within the script (much simpler to be used in scripts compared to previously).

[kimchy]

Geo Overhaul (work with multiple locations), closed by 6314c24.