Let's say we have a bunch of documents in an ElasticSearch index. Each documents has multiple locations in an array, like this:
{ "name": "foobar", "locations": [ { "lat": 40.708519, "lon": -74.003212 }, { "lat": 39.752609, "lon": -104.998100 }, { "lat": 51.506321, "lon": -0.127140 } ] }
According to the ElasticSearch reference guide
the geo_distance filter can work with multiple locations / points per document. Once a single location / point matches the filter, the document will be included in the filter.
So, is it possible to create a geo distance filter which checks all the locations in the array?
This doesn't seem to work, unfortunately:
{ "filter": { "geo_distance": { "distance": "100 km", "locations": "40, -105" } } }
throws "QueryParsingException[[myIndex] failed to find geo_point field [locations]" since locations is not a single geo_point but an array of geo_points.
Did you specify a geo_point mapping for your document?
curl -XDELETE 'http://localhost:9200/twitter/' curl -XPUT 'http://localhost:9200/twitter/' curl -XPUT 'http://localhost:9200/twitter/tweet/_mapping' -d ' { "tweet" : { "properties" : { "locations" : {"type" : "geo_point"} } } }' curl -XPUT 'http://localhost:9200/twitter/tweet/1' -d ' { "user": "kimchy", "postDate": "2009-11-15T13:12:00", "message": "Trying out Elastic Search, so far so good?", "locations" : [{ "lat" : 50.00, "lon" : 10.00 }, { "lat" : 40.00, "lon" : 9.00 }] }' curl -XPUT 'http://localhost:9200/twitter/tweet/2' -d ' { "user": "kimchy", "postDate": "2009-11-15T13:12:00", "message": "Trying out Elastic Search, so far so good?", "locations" : [{ "lat" : 30.00, "lon" : 8.00 }, { "lat" : 20.00, "lon" : 7.00 }] }' curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d '{ "query": { "filtered" : { "query" : { "match_all" : {} }, "filter" : { "geo_distance" : { "distance" : "20km", "tweet.locations" : { "lat" : 40.00, "lon" : 9.00 } } } } } }'
For Elasticsearch version 5.1, for same above index, query will go like this,
curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d ' { "query": { "bool": { "must": { "match_all": {} }, "filter": { "geo_distance": { "distance": "200km", "locations": { "lat": 40.00, "lon": 9.00 } } } } } }'
翻译