相关疑难解决方法(0)

我有一个具有以下结构的数据帧:

 |-- data: struct (nullable = true)
 |    |-- id: long (nullable = true)
 |    |-- keyNote: struct (nullable = true)
 |    |    |-- key: string (nullable = true)
 |    |    |-- note: string (nullable = true)
 |    |-- details: map (nullable = true)
 |    |    |-- key: string
 |    |    |-- value: string (valueContainsNull = true)

如何展平结构并创建新的数据框:

     |-- id: long (nullable = true)
     |-- keyNote: struct (nullable = true)
     |    |-- key: string (nullable = true)
     |    |-- note: …