使用jq按最新时间戳对数组中的对象数组进行排序,然后按每个数组的第一个对象的时间戳对外部数组进行排序

使用以下命令按最新时间戳对数组中的对象数组进行排序,然后按每个数组的第一个对象的时间戳对外部数组进行排序 jq .

这是JSON数据的一个例子,在 jq 我被卡住的管道。

[
  [
    {
      "created_at": "2020-09-26T14:48:46.000Z",
      "conversation_id": "1309867515456237571",
      "id": "1309867515456237571",
      "text": "example1"
    }
  ],
  [
    {
      "created_at": "2020-09-26T14:48:47.000Z",
      "conversation_id": "1309867518455156736",
      "id": "1309867518455156736",
      "text": "example2"
    },
    {
      "created_at": "2020-09-26T14:48:47.000Z",
      "conversation_id": "1309867518455156736",
      "id": "1309867517846810625",
      "text": "example3"
    },
    {
      "created_at": "2020-09-26T14:48:46.000Z",
      "conversation_id": "1309867518455156736",
      "id": "1309867516659937284",
      "text": "example4"
    }
  ],
  [
    {
      "created_at": "2020-09-26T14:48:48.000Z",
      "conversation_id": "1309867524473999364",
      "id": "1309867524473999364",
      "text": "example5"
    },
    {
      "created_at": "2020-09-26T14:48:47.000Z",
      "conversation_id": "1309867524473999364",
      "id": "1309867520468291586",
      "text": "example6"
    },
    {
      "created_at": "2020-09-26T14:48:47.000Z",
      "conversation_id": "1309867524473999364",
      "id": "1309867520153845760",
      "text": "example7"
    }
  ],
  [
    {
      "created_at": "2020-09-26T14:48:48.000Z",
      "conversation_id": "1309867524750749705",
      "id": "1309867524750749705",
      "text": "example8"
    }
  ]
]

我所尝试的一切最终都会出现这样的错误,

jq: error (at <stdin>:8): Cannot index string with string "created_at"