ElasticSearch : GeoLocation distance search across types - search

Question

As shown below, there are two types in my city index - zoo and hotel. How do I find all zoos having a hotel in 1KM radius? Here is the mapping of my index :
GET /city/_mapping
{
"city": {
"mappings": {
"hotel": {
"properties": {
"location": {
"type": "geo_point"
},
"name": {
"type": "string"
}
}
},
"zoo": {
"properties": {
"location": {
"type": "geo_point"
},
"name": {
"type": "string"
}
}
}
}
}
}

Answer 1

You can do it with a geo-distance filter for the whole index (just don't specify a type).
As I quick test I created an index like this:
PUT /test_index/
{
"mappings": {
"hotel": {
"properties": {
"location": {
"type": "geo_point"
},
"name": {
"type": "string"
}
}
},
"zoo": {
"properties": {
"location": {
"type": "geo_point"
},
"name": {
"type": "string"
}
}
}
}
}
Added a couple of documents
POST /test_index/_bulk
{"index":{"_type":"hotel","_id":1}}
{"name":"hotel1","location":{"lat" : 40.001, "lon" : -70.001}}
{"index":{"_type":"zoo","_id":1}}
{"name":"zoo1","location":{"lat" : 40.002, "lon" : -70.002}}
And then I can search like this. This query returns the one document:
POST /test_index/_search
{
"query": {
"filtered": {
"filter": {
"geo_distance": {
"distance": 200,
"distance_unit": "km",
"location": {
"lat": 40,
"lon": -70
}
}
}
}
}
}
...
{
"took": 2,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 1,
"hits": [
{
"_index": "test_index",
"_type": "hotel",
"_id": "1",
"_score": 1,
"_source": {
"name": "hotel1",
"location": {
"lat": 40.001,
"lon": -70.001
}
}
}
]
}
}
And this query returns both:
POST /test_index/_search
{
"query": {
"filtered": {
"filter": {
"geo_distance": {
"distance": 300,
"distance_unit": "km",
"location": {
"lat": 40,
"lon": -70
}
}
}
}
}
}
...
{
"took": 5,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"failed": 0
},
"hits": {
"total": 2,
"max_score": 1,
"hits": [
{
"_index": "test_index",
"_type": "hotel",
"_id": "1",
"_score": 1,
"_source": {
"name": "hotel1",
"location": {
"lat": 40.001,
"lon": -70.001
}
}
},
{
"_index": "test_index",
"_type": "zoo",
"_id": "1",
"_score": 1,
"_source": {
"name": "zoo1",
"location": {
"lat": 40.002,
"lon": -70.002
}
}
}
]
}
}
Here's the code I used to test it:
http://sense.qbox.io/gist/948d23a5327cf5f22dd368146f37d09e30765fee