弹性搜索将doc_count的平均值从聚合条件中取出

Question

我在弹性搜索中使用了术语查询。

GET http://localhost:9200/adapters/request/_search 
{ 
    "query": { 
     "bool" : { 
      "must" : { 
       "match" : { "adapterName" : "EnginePushableAdapter" } 
      }, 
      "filter": { 
       "range" : { 
        "request.requestTime" : { 
         "gte" : 1492080226172, 
         "lte" : 1492080725964 
        } 
       } 
      } 
     } 
    }, 
    "aggs" : { 
     "call_count" : { 
      "terms" : { 
       "field" : "deviceId"   
      } 
     } 
    } 
} 

有没有办法来calcaulate doc_count的平均通过条款聚集回来了？这样

"avg_agg" : { 
     "avg": { "field": "call_count.doc_count" } 

    } 

换句话说，我想利用以前的聚合领域的平均水平。

Answer 1

我想你可能正在寻找平均桶聚合。

https://www.elastic.co/guide/en/elasticsearch/reference/5.3/search-aggregations-pipeline-avg-bucket-aggregation.html

试着这么做

... 
"my_count_avg": { 
    "avg_bucket": { 
    "buckets_path": "call_count>_count" 
    } 
}