如何在`painless`脚本中访问`matched_queries`来创建存储桶

Question

我正在使用AWS上的Elasticsearch 5.3.3

我在搜索查询中有多个过滤器，每个过滤器都有一个_name。这些名称在结果中反映为matched_queries。我想将这些结果分组到不同的桶中，其中每个桶的选择标准是matched_queries中存在一个或多个过滤器名称。

以下是一个示例请求：

GET my_index/_search
{
  "query": {
    "bool": {
      "must": [
        { "terms": { "bed": [0, 1, 2] } },
        { "terms": { "contract": ["none", "good", "tight"] } }
      ],
      "should": [
        { 
          "terms": { 
            "bed": ["0", "1"],
            "_name": "exact_beds"
          }
        },
        {
          "term": {
            "bed": {
              "value": 2,
              "_name": "increased_beds"
            }
          }
        },
        {
          "terms": {
            "contract": ["good", "tight"],
            "_name": "money"
          }
        },
        {
          "term": {
            "contract": {
              "value": "none",
              "_name": "no_money"
            }
          }
        }
      ]
    }
  }
}

它将输出类似

的内容

{
  "took": 19,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "failed": 0
  },
  "hits": {
    "total": 297256,
    "max_score": 5.8605247,
    "hits": [
      {
        "_index": "my_index",
        "_type": "listing",
        "_id": "49932563",
        "_score": 5.8605247,
        "_source": {
          "bed": 1,
          "contract": "good",
        },
        "matched_queries": [
          "money",
          "exact_beds"
        ]
      }
    ]
  }
}

我想在我的请求中添加这样的内容

"aggs": {
  "E1": {
    "filter": {
      "script": {
        "script": {
          "lang": "painless",
          "inline": "matched_queries.contains('exact_beds') && matched_queries.contains('money')"
        }
      }
    }
  }

但我收到错误"Variable [matched_queries] is not defined."。有没有办法访问matched_queries？