elasticsearch filter简单介绍

filter 没有排序 和score 但是有缓存，性能更高，先过滤，后查询排序

GET /blank/_search
{
  "from": 0,
  "size": 0,
  "query": {
    "bool": {
      "filter": {
        "range": {
          "age": {
            "gte": 10,
            "lte": 40
          }
        }
      }
    }
  },
  "aggs": {
    "single_avg_price": {
      "avg": {
        "field": "age"
      }
    }
  }
}