计算子聚合返回的存储桶

您可以利用“
统计数据桶聚合”来获取存储桶数。

以下是查询的方式。

汇总查询：

POST visitor_carts/_search{  "size": 0,  "aggs": {    "visitors": {      "terms": {        "field" : "visitor_id"      },      "aggs": {        "one_purchase": {          "bucket_selector": { "buckets_path": {   "nb_purchases": "_count" }, "script": "params.nb_purchases == 3"          }        }      }    },    "mybucketcount":{      "stats_bucket": {        "buckets_path":"visitors._count"      }    }  }}

汇总结果：

{  "took": 1,  "timed_out": false,  "_shards": {    "total": 5,    "successful": 5,    "failed": 0  },  "hits": {    "total": 8,    "max_score": 0,    "hits": []  },  "aggregations": {    "visitors": {      "doc_count_error_upper_bound": 0,      "sum_other_doc_count": 0,      "buckets": [        {          "key": "2",          "doc_count": 3        },        {          "key": "3",          "doc_count": 3        }      ]    },    "mybucketcount": {      "count": 2,   <---- This is the count you are looking for      "min": 3,      "max": 3,      "avg": 3,      "sum": 6    }  }}

让我知道是否有帮助！