搜索+聚合
    过滤+聚合

    1. GET /tvs/_search 
    2. {
    3.   "size": 0,
    4.   "query": {
    5.     "constant_score": {
    6.       "filter": {
    7.         "range": {
    8.           "price": {
    9.             "gte": 1200
    10.           }
    11.         }
    12.       }
    13.     }
    14.   },
    15.   "aggs": {
    16.     "avg_price": {
    17.       "avg": {
    18.         "field": "price"
    19.       }
    20.     }
    21.   }
    22. }
    {
  "took": 41,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "failed": 0
  },
  "hits": {
    "total": 7,
    "max_score": 0,
    "hits": []
  },
  "aggregations": {
    "avg_price": {
      "value": 2885.714285714286
    }
  }
}