Elasticsearch sum_bucket，从结果中剥离中间聚合 [英] Elasticsearch sum_bucket, strip intermediary aggregation from result

问题描述

我有以下查询，其中

• 我执行第一项聚合，返回大量存储桶
• 然后在此存储桶上执行指标汇总(此示例中的平均值例子)
• 最后是sum_bucket聚合

当我运行此查询时，输出包含所有中间my_huge_bucket.my_huge_bucket_metric结果，但我只对sum_bucket指标感兴趣.

When I run this query, the output contains all the intermediary my_huge_bucket.my_huge_bucket_metric results but I am only interested by the sum_bucket metric.

是否可以从结果中剥离中间聚合?

Is there a way to strip the intermediary aggregation from the result?

{
  "size": 0,
  "aggs": {
    "my_sum_bucket": {
      "sum_bucket": {
        "buckets_path": "my_huge_bucket.my_huge_bucket_metric"
      }
    },
    "my_huge_bucket": {
      "terms": {
        "field": "some_field",
        "size": 0
      },
      "aggs": {
        "my_huge_bucket_metric": {
          "avg": {
            "field": "some_field"
          }
        }
      }
    }
  }

}

推荐答案

刚刚发现关于filter_path选项的信息正是我想要的

Just found out about the filter_path options that does exactly what I am looking for

https://www.elastic.co/guide/zh-CN/elasticsearch/reference/2.3/common-options.html#_response_filtering

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