Amazon dynamodb 如何查询dynamo DB上的嵌套属性

我的数据结构如下所示。我想检索所有主题名为PHYSICS PAPER-I和标记为40的记录

是否可以查询这些记录？有没有其他库可以用来实现这一点

{
  "CID": "A1",
  "COL_ID": "HARISHFYSX",
  "district": "ADILABAD",
  "grandresult": "C",
  "grandtotal": "232",
  "stdntname": "JAMES",
  "subjects": [
    {
      "marksGained": "38",
      "outcome": "P",
      "passType": "*",
      "subjectName": "ENGLISH PAPER -I"
    },
    {
      "marksGained": "56",
      "outcome": "P",
      "passType": "*",
      "subjectName": "TELUGU PAPER-I"
    },
    {
      "marksGained": "42",
      "outcome": "P",
      "passType": "*",
      "subjectName": "BOTANY PAPER-I"
    },
    {
      "marksGained": "22",
      "outcome": "P",
      "passType": "*",
      "subjectName": "ZOOLOGY PAPER-I"
    },
    {
      "marksGained": "40",
      "outcome": "P",
      "passType": "*",
      "subjectName": "PHYSICS PAPER-I"
    },
    {
      "marksGained": "34",
      "outcome": "P",
      "passType": null,
      "subjectName": "CHEMISTRY PAPER-I"
    }
  ],
  "ticket": "1534343434",
  "UID": "A1_1534343434"
}

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不能对嵌套对象进行查询，这将是一次扫描。下面的论坛进行了详细讨论

希望能有帮助