使用Jolt变换转换JsonArray以将关键字转移到内部JsonArray中

我在使用Jolt变换获得所需输出时遇到了麻烦.

我的输入JsonArray看起来像这样:

[
  {
    "from": [
      {
        "area1": 1
      },
      {
        "area2": 1
      },
      {
        "area3": 1
      }
    ],
    "id": 111,
    "to": "destination1"
  },
  {
    "from": [
      {
        "area1": 2
      },
      {
        "area2": 2
      },
      {
        "area3": 2
      }
    ],
    "id": 222,
    "to": "destination2"
  }
]

我正在使用Jolt Spec为JsonArray中的每个JsonObject创建一个JsonArray "from"，并希望包含where "id"和"to"键:

[
  {
    "operation": "shift",
    "spec": {
      "*": {
        "from": {
          "*": {
            "@": "[&]",
            "@(2,id)": "[&].id",
            "@(2,to)": "[&].to"
          }
        }
      }
    }
  }
]

这是输出:

[
  [
    {
      "area1": 1,
      "id": 111,
      "to": "destination1"
    },
    {
      "area1": 2
    }
  ],
  [
    {
      "area2": 1,
      "id": 111,
      "to": "destination1"
    },
    {
      "area2": 2
    }
  ],
  [
    {
      "area3": 1,
      "id": 111,
      "to": "destination1"
    },
    {
      "area3": 2
    }
  ]
]

我想要的输出应该是这样的:

[
  {
    "area1": 1,
    "id": 111,
    "to": "destination1"
  },
  {
    "area1": 2,
    "id": 222,
    "to": "destination2"
  },
  {
    "area2": 1,
    "id": 111,
    "to": "destination1"
  },
  {
    "area2": 2,
    "id": 222,
    "to": "destination2"
  },
  {
    "area3": 1,
    "id": 111,
    "to": "destination1"
  },
  {
    "area3": 2,
    "id": 222,
    "to": "destination2"
  }
]

我不知道为什么输入的第二个JSON Object中没有包含"id"和"to"键. 有没有人知道如何修复Jolt以获得所需的输出？