ElasticSearch _Type with geolocation - elasticsearch

Question

I have set up an elastic Search index which includes different _type mapping for every country.
So there is a mapping for "us" "au" "uk" etc.
Each mapping includes a location mapping of type "geo_point"
prior to adding different _types
My query sort would look like:
"sort" : [
{
"_geo_distance" : {
"postcode.location" : [' . $mylocation_long . ',' . $mylocation_lat . '],
"order" : "asc",
"unit" : "km"
}
}
],
with adding _types to the data and mapping this no longer works, instead I specify it like:
"sort" : [
{
"_geo_distance" : {
"$country.location" : [' . $mylocation_long . ',' . $mylocation_lat . '],
"order" : "asc",
"unit" : "km"
}
}
],
this works fine.
However there are times when queries need to be done beyond a single country. So setting it to "us.location" isn't correct, and wont work.
In this case, how do I make this sorting work, when I don't know the country and I need to sort it by a mapped location.
Or is it a case of this can not be done and all docs must have the same _type in order for this to work?

Answer 1

Sorry if I am missing something obvious, but why cannot you just sort on "location". It seems to work just fine:
curl -XDELETE localhost:9200/test-idx/ && echo
curl -XPUT localhost:9200/test-idx/ -d '
{
"settings":{
"number_of_shards":1,
"number_of_replicas":0
},
"mappings": {
"us": {
"properties": {
"location": {
"type": "geo_point"
}
}
},
"uk": {
"properties": {
"location": {
"type": "geo_point"
}
}
},
"au": {
"properties": {
"location": {
"type": "geo_point"
}
}
}
}
}' && echo
curl -XPUT localhost:9200/test-idx/us/1 -d '
{
"location": "42.3606402,-71.0674569"
}
' && echo
curl -XPUT localhost:9200/test-idx/uk/2 -d '
{
"location": "51.5286416,-0.1017943"
}
' && echo
curl -XPUT localhost:9200/test-idx/au/3 -d '
{
"location": "-33.8471226,151.0594183"
}
' && echo
curl -XPOST localhost:9200/test-idx/_refresh && echo
curl "localhost:9200/test-idx/_search?pretty" -d '{
"query": {
"match_all": {}
},
"sort" : [
{
"_geo_distance" : {
"location" : "52.3712989,4.8937347",
"order" : "asc",
"unit" : "km"
}
}
]
}' && echo
output:
{"ok":true,"acknowledged":true}
{"ok":true,"acknowledged":true}
{"ok":true,"_index":"test-idx","_type":"us","_id":"1","_version":1}
{"ok":true,"_index":"test-idx","_type":"uk","_id":"2","_version":1}
{"ok":true,"_index":"test-idx","_type":"au","_id":"3","_version":1}
{"ok":true,"_shards":{"total":1,"successful":1,"failed":0}}
{
"took" : 3,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"failed" : 0
},
"hits" : {
"total" : 3,
"max_score" : null,
"hits" : [ {
"_index" : "test-idx",
"_type" : "uk",
"_id" : "2",
"_score" : null, "_source" : {"location": "51.5286416,-0.1017943"},
"sort" : [ 355.2735714686373 ]
}, {
"_index" : "test-idx",
"_type" : "us",
"_id" : "1",
"_score" : null, "_source" : {"location": "42.3606402,-71.0674569"},
"sort" : [ 5563.606078215864 ]
}, {
"_index" : "test-idx",
"_type" : "au",
"_id" : "3",
"_score" : null, "_source" : {"location": "-33.8471226,151.0594183"},
"sort" : [ 16650.926847312003 ]
} ]
}
}

Answer 2

What happens when you point the working query at /index/_search instead of /index/type/_search ?