嵌套聚合 Elasticsearch答案

【问题标题】：Nested Aggregation Elasticsearch嵌套聚合 Elasticsearch
【发布时间】：2015-11-18 19:29:43
【问题描述】：

我正在尝试在 elasticsearch 中构建嵌套聚合，但它一直出错。它说“找不到 agg 类型标签”。我该如何解决。感谢您的帮助。顺便说一句，我没有嵌套文档，我有一个包含 180 个字段的文档。我可以应用这个聚合吗？这是我的代码：

{
  "aggs": {
     "comments": { 
      "nested": {
        "path": "comments"
      },
     "aggs" : {
    "red_products": {
      "filter": {
        "not": {
          "terms": {
            "text": [
              "06melihgokcek",
              "t.co","??","????","???"
            ]
          }
        }
      },
      "aggs": {
        "top_docs": {
          "terms": {
            "field": "text",
            "size": 50
          }
        },

      "aggs" : {
            "tags" : {
            "terms" : {
                "field" : "text",
                "include" : ".*avni.*",
                "exclude" : "fuat_.*"
            }
        }
    }
      }


    }
  }
}}}

【问题讨论】：

标签： elasticsearch filter nested aggregation

【解决方案1】：

你最里面的aggs（底部叫tags）放错了位置，应该是top_docs的子元素。

{
  "aggs": {
    "comments": {
      "nested": {
        "path": "comments"
      },
      "aggs": {
        "red_products": {
          "filter": {
            "not": {
              "terms": {
                "text": [
                  "06melihgokcek",
                  "t.co",
                  "??",
                  "????",
                  "???"
                ]
              }
            }
          },
          "aggs": {
            "top_docs": {
              "terms": {
                "field": "text",
                "size": 50
              },
              "aggs": {                   <---- this was the misplaced aggs
                "tags": {
                  "terms": {
                    "field": "text",
                    "include": ".*avni.*",
                    "exclude": "fuat_.*"
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}

【讨论】：