Geo query using elasticsearch - elasticsearch

Question

I have created and index the same as the example tutorials, in here...
https://www.elastic.co/guide/en/elasticsearch/reference/2.0/geo-point.html
in specific writing the following:
curl -PUT 'localhost:9200/my_index?pretty' -d '
{
"mappings": {
"my_type": {
"properties": {
"location": {
"type": "geo_point"
}
}
}
}
}'
I have also added two points as data
curl -PUT 'localhost:9200/my_index/my_type/1?pretty' -d'
{
"text": "first geo-point",
"location": {
"lat": 41.12,
"lon": -71.34
}
}'
curl -PUT 'localhost:9200/my_index/my_type/1?pretty' -d'
{
"text": "second geo-point",
"location": {
"lat": 41.13,
"lon": -71.35
}
}'
The example geo bounding box query on the page works (i.e):
curl -XGET 'localhost:9200/my_index/_search?pretty' -d'
{
"query": {
"geo_bounding_box": {
"location": {
"top_left": {
"lat": 42,
"lon": -72
},
"bottom_right": {
"lat": 40,
"lon": -74
}
}
}
}
}'
But the example from this page (https://www.elastic.co/guide/en/elasticsearch/reference/2.0/query-dsl-geo-bounding-box-query.html) doesn't work:
What I have tried looks like the following:
curl -XGET 'localhost:9200/my_index/_search?pretty' -d'
{
"bool" : {
"must" : {
"match_all" : {}
},
"filter" : {
"geo_bounding_box" : {
"my_type.location" : {
"top_left" : {
"lat" : 42,
"lon" : -72
},
"bottom_right" : {
"lat" : 40,
"lon" : -74
}
}
}
}
}
}'
The error I get is as follows:
"error" : {
"root_cause" : [ {
"type" : "search_parse_exception",
"reason" : "failed to parse search source. unknown search element [bool]",
"line" : 3,
"col" : 5
} ],
"type" : "search_phase_execution_exception",
"reason" : "all shards failed",
"phase" : "query",
"grouped" : true,
"failed_shards" : [ {
"shard" : 0,
"index" : "my_index",
"node" : "0qfvkynhTRyjHFRurBLJeQ",
"reason" : {
"type" : "search_parse_exception",
"reason" : "failed to parse search source. unknown search element [bool]",
"line" : 3,
"col" : 5
}
} ]
},
"status" : 400
}
I hope its just a simple error, so would like to know what am i doing wrong?

Answer 1

You need to specify that the whole thing is a query:
curl -XGET 'localhost:9200/my_index/_search?pretty' -d'
{
"query": {
"bool" : {
"must" : {
"match_all" : {}
},
"filter" : {
"geo_bounding_box" : {
"my_type.location" : {
"top_left" : {
"lat" : 42,
"lon" : -72
},
"bottom_right" : {
"lat" : 40,
"lon" : -74
}
}
}
}
}
}
}'
However as far as I understand using bool with must and filter is the old way of doing things. In previous versions, geo queries were thought of as "filters", so you had to first run a match_all query to return all the results, and then filter using the geo bounding box. In Elasticssearch 2.0+, there is no separation between filters and queries - everything is a query. So you can run the geo query directly:
curl -XGET 'localhost:9200/my_index/_search?pretty' -d'
{
"query": {
"geo_bounding_box": {
"location": {
"top_left": {
"lat": 42,
"lon": -72
},
"bottom_right": {
"lat": 40,
"lon": -74
}
}
}
}
}'