Elasticsearch：如何过滤热门匹配的汇总结果

Question

我想使用bucket_selector过滤聚合结果，但是我想在top_hits结果上使用它。可能吗？

GET new-transactions-2/_search
{
  "size": 0,
  "aggs": {
    "aggs_name": {
      "nested": {
        "path": "items"
      },
      "aggs": {
        "products": {
          "terms": {
            "field": "items.product_id",
            "size": 10
          },
          "aggs": {
            "sum_amount": {
              "sum": {
                "field": "items.amount"
              }
            },
            "bucketSelector1": {
              "bucket_selector": {
                "buckets_path": {
                  "x" : "sum_amount"
                },
                "script": "params.x > 40000"
              }
            },
            "additionalFields": {
              "top_hits": {
                "_source": {"includes": ["items.amount", "items.title"]}, 
                "size": 1
              }
            }
          }
        }
      }
    }
  }
}

这是我想要实现的虚构代码。

"bucketSelector2": {
  "bucket_selector": {
    "buckets_path": {
      "x" : "additionalFields"
    },
    "script": "params.additionalFields.items.title.contains('Ayam')"
  }
}

运行此请求时收到警告。据说

buckets_path必须引用数字值或单个值数字度量聚合，得到：聚合[additionalFields]处的[InternalTopHits]

我很好奇是否还有另一种方法可以实现这种过滤器，请帮忙。