geo_point 的幾種型別 首先將經緯度的值賦給新的變數 geoip.location，然後將其轉化為float型別，要注意的是【經度，緯度】，陣列格式經度在前。

mutate {
        add_field => ["[geoip][latitude]", "%{[lat]}"]
        add_field => ["[geoip][longitude]", "%{[lon]}"]
        add_field => ["[geoip][location]", "%{[lon]}"]
        add_field => ["[geoip][location]", "%{[lat]}"]
}



mutate {
        convert => ["[geoip][latitude]", "float"]
}
mutate {
        convert => ["[geoip][longitude]", "float"]
}
mutate {
        convert => ["[geoip][location]", "float"]
}