elasticsearch无痛组合聚合密钥及其嵌套聚合密钥

Question

处理elasticsearch查询结果的转换

{
   'key': factoryA,
   'buckets': [
       {
          'key': 'productX'
       }
    ]

},
{
   'key': factoryB,
   'buckets': [
       {
          'key': 'productX'
       },
       {
          'key': 'productY'
       }
    ]

}

我想要一个列表，其项目是工厂聚合和嵌套聚合产品的组合：

[
   {'factory': 'factoryA', 'product': 'productX'},
   {'factory': 'factoryB', 'product': 'productX'},
   {'factory': 'factoryB', 'product': 'productY'},
]

关于无痛脚本的任何建议？先感谢您。或者我可以在任何地方找到无痛的综合指南。没有Doc的无痛是完全痛苦的。

Answer 1

我认为以下查询是您正在寻找的：

询问

POST <your_index_name>/_search
{  
   "size":0,
   "aggs":{  
      "myagg":{  
         "terms":{  
            "script":{  
               "source":"'factory: ' + doc['factory.keyword'].value + params.param + 'product: ' + doc['product.keyword'].value",
               "lang":"painless",
               "params":{  
                  "param":", "
               }
            },
            "order":{  
               "_term":"asc"
            }
         }
      }
   }
}

查询响应

{
  "took": 6,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": 2,
    "max_score": 0,
    "hits": []
  },
  "aggregations": {
    "myagg": {
      "doc_count_error_upper_bound": 0,
      "sum_other_doc_count": 0,
      "buckets": [
        {
          "key": "factory: factory A, product: product A",
          "doc_count": 1
        },
        {
          "key": "factory: factory B, product: product B",
          "doc_count": 1
        }
      ]
    }
  }
}

注意，我假设factory和product这两个字段都是keyword类型

如果有帮助，请告诉我！