ES常用聚合命令

Count聚合（统计个数）

GET /subscribe_content_manage/content_manage_info/_search
{
    "query" : {
      "range": {
        "createTime": {
          "gte": "now-10d"

        }
      }},
   "size" : 0,
   "aggs": {
      "grades_contentState": {
        "value_count": {
          "field": "contentState"
        }
      }
   }
}

return:

{
  "took": 2,
  "timed_out": false,
  "_shards": {
    "total": 6,
    "successful": 6,
    "failed": 0
  },
  "hits": {
    "total": 200,
    "max_score": 0,
    "hits": []
  },
  "aggregations": {
    "grades_contentState": {
      "value": 200
    }
  }
}

Avg Aggregations

GET /subscribe_content_manage/content_manage_info/_search
{
    "query" : {
      "range": {
        "createTime": {
          "gte": "now-10d"

        }
      }},
   "size" : 0,
   "aggs": {
      "grades_contentState": {
        "avg": {
          "field": "contentState"
        }
      }
   }
}

return:
{
  "took": 2,
  "timed_out": false,
  "_shards": {
    "total": 6,
    "successful": 6,
    "failed": 0
  },
  "hits": {
    "total": 200,
    "max_score": 0,
    "hits": []
  },
  "aggregations": {
    "grades_contentState": {
      "value": 2.965
    }
  }
}

sum aggregation(求和)

GET /subscribe_content_manage/content_manage_info/_search
{
    "query" : {
      "range": {
        "createTime": {
          "gte": "now-1d"

        }
      }},
   "size" : 0,
   "aggs": {
      "grades_contentState": {
        "value_count": {
          "field": "contentState"
        }
      }
   }
}

{
  "took": 3,
  "timed_out": false,
  "_shards": {
    "total": 6,
    "successful": 6,
    "failed": 0
  },
  "hits": {
    "total": 36,
    "max_score": 0,
    "hits": []
  },
  "aggregations": {
    "grades_contentState": {
      "value": 36
    }
  }
}