es - elasticsearch - aggs - metrics - geo

世界上并没有完美的程序，但是我们并不因此而沮丧，因为写程序就是一个不断追求完美的过程。

问：geo_bounds有什么特点？
答：

问：geo_bounds如何使用？
答：

DELETE /geo_bounds_test

PUT /geo_bounds_test
{
  "mappings": {
    "properties": {
      "geo_point": {"type": "geo_point"}
    }
  }
}

POST /geo_bounds_test/_bulk
{"index": {"_id": 1}}
{"geo_point": [23, 45]}
{"index": {"_id": 2}}
{"geo_point": [58, 47]}
{"index": {"_id": 3}}
{"geo_point": [77, 44]}
{"index": {"_id": 4}}
{"geo_point": [66, 55]}


GET /geo_bounds_test/_search?size=0
{
  "aggs": {
    "geo_bounds_aggs": {
      "geo_bounds": {
        "field": "geo_point"
      }
    }
  }
}

# 结果
{
  "took" : 640,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 4,
      "relation" : "eq"
    },
    "max_score" : null,
    "hits" : [ ]
  },
  "aggregations" : {
    "geo_bounds_aggs" : {
      "bounds" : {
        "top_left" : {
          "lat" : 54.999999990686774,
          "lon" : 22.999999970197678
        },
        "bottom_right" : {
          "lat" : 43.99999997578561,
          "lon" : 76.99999993667006
        }
      }
    }
  }
}