查询以展平 couchbase 中的数组对象

Question

我有下面的 couchbase 文档，

 {
      "appId": "f1606a90-c96f-4db9-8e5f-9f0b6d2d2106",
      "attributes": [
         {
            "label": "Reviewed By",
            "name": "reviewedBy",
            "value": "QA.Praveen"
         },
         {
            "label": "Assigned To",
            "name": "assignedTo",
            "value": "Praveen"
         },
         {
            "label": "Completed Lines",
            "name": "completedLines",
            "value": "23"
         }
      ],
    "hasConversations": false,
    "id": "02efdb67-798f-4616-9750-c80c17c4c1ee",
    "status": "Completed",
    "task": {
        "details": {
            "hasAttachments": true,
            "importance": "normal",
            "subject": "very interesting"
        },
        "taskType": "mail"
    },
    "taskId": "02efdb67-798f-4616-9750-c80c17c4c1ee",
    "type": "task"
}

找到一个查询，我们可以从中获取展平文档而不是嵌套数组对象 我试过以下查询，

SELECT a.taskId, a.appId, ARRAY_FLATTEN( ARRAY_AGG ({ attr.name:attr.`value`}) ,0) as attr FROM workFlowDetails a UNNEST a.attributes attr WHERE a.type = "task" and a.taskId = '02efdb67-798f-4616-9750-c80c17c4c1ee' GROUP BY  a.taskId, a.appId;

但是这个查询没有按要求工作，

预期输出为：

{
    "appId": "f1606a90-c96f-4db9-8e5f-9f0b6d2d2106",
    "taskId": "02efdb67-798f-4616-9750-c80c17c4c1ee",
    "type": "task",
    "hasConversations": false,
    "id": "02efdb67-798f-4616-9750-c80c17c4c1ee",
    "status": "Completed",
    "reviewedBy": "QA.Praveen",
    "assignedTo": "Praveen",
    "completedLines": "23",
    "taskType": "mail",
    "hasAttachments": true,
    "importance": "normal",
    "subject": "very interesting"
}