Elasticsearch：对所有文档中的嵌套对象进行排序

Question

我正在尝试使用一个嵌套对象对所有文档进行排序，因为每个对象“action”都是列表中显示的行，用户希望通过“vouch”对列表进行排序。

以下是ES中的数据：

{
  "took": 3,
  "timed_out": false,
  "_shards": {
  "total": 2,
  "successful": 2,
  "failed": 0
  },
  "hits": {
  "total": 2,
  "max_score": 1,
  "hits": [
     {
        "_index": "qae-myobject1509618636",
        "_type": "myobject",
        "_id": "601708a8-684d-4321-910b-a6ac61f986a8",
        "_score": 1,
        "_source": {
        "id": "601708a8-684d-4321-910b-a6ac61f986a8",
        "actions": [
        {
              "id": "cc454d55-e49f-45d3-89a9-c898e8b05289",
              "vouch": "C",
              "notice": "0001-01-01T00:00:00+00:00"
        }
        ,
        {
              "id": "2f1f5964-f4e2-4df2-8895-7c6535d09255",
              "vouch": "B",
              "notice": "0001-01-01T00:00:00+00:00"
        }
     ]}
  }
  ,
  {
        "_index": "qae-myobject1509618636",
        "_type": "myobject",
        "_id": "c7d59a3b-5c86-42d0-809c-139a996a3c34",
        "_score": 1,
        "_source": {
        "id": "c7d59a3b-5c86-42d0-809c-139a996a3c34",
        "actions": [
        {
              "id": "255dfb74-2576-414d-8d2d-63981ee92e73",
              "vouch": "D",
              "notice": "0001-01-01T00:00:00+00:00"
        }
        ,
        {
              "id": "c26d56b8-144a-4bed-bbdc-7fdb2eca63b1",
              "vouch": "A",
              "notice": "0001-01-01T00:00:00+00:00"
        }
  ]}
  }
  ]
  }
  }

我需要按字母顺序按'保证'对所有'动作'（我的嵌套对象）进行排序。可悲的是，ES按文档排序“行动”。所以我有结果：

{B，C}，{A，D}代替{A，B，C，D}

如何对文档进行排序以获得一个响应，并且所有嵌套对象都已正确排序（而不是按文档排序）。

感谢您的帮助。