WiredTigerIndex :: insert：键太大而不能索引，失败1180

Question

我有一个mongoDB集合。

我正在尝试使用mongoose插入以下记录。

   {
     "employeeColumns": {
                "headCount": ["empId","designation","country","city","branch","vertical","client","process"],
                "headCountRatio": ["empId","designation","country","city","branch","vertical","client","process"],
                "genderRatio": ["empId","designation","country","city","branch","vertical","client","process","gender"],
                "averageCtc": ["empId","designation","country","city","branch","vertical","client","process","ctc"],
                "accuracy": ["empId","designation","country","city","branch","vertical","client","process","accuracy"],
                "productivity": ["empId","designation","country","city","branch","vertical","client","process","productivity"],
                "attrition": ["empId","designation","country","city","branch","vertical","client","process","employmentStatus"],
                "allowances": ["empId","designation","country","city","branch","vertical","client","process"]
            },
            "costColumns": {
                "branchCost": ["country","city","branch"],
                "clientCost": ["client"],
                "verticalCost": ["vertical"]
            },
            "revenueColumns": ["client"]
    }

当我尝试插入上述文档时，我收到以下错误

WiredTigerIndex :: insert: key too large to index, failing 1180

我没有插入一张巨大的唱片。只是上面的文件，我不知道为什么我得到这个错误。我是MongoDB的新手