相关疑难解决方法(0)

我有一个类似于架构的数据框

root
 |-- state: struct (nullable = true)
 |    |-- fld: integer (nullable = true)

我想在state结构中添加列,即创建一个具有类似架构的数据帧

root
 |-- state: struct (nullable = true)
 |    |-- fld: integer (nullable = true)
 |    |-- a: integer (nullable = true)

但相反,我得到了

root
 |-- state: struct (nullable = true)
 |    |-- fld: integer (nullable = true)
 |-- state.a: integer (nullable = true)

这是尝试

df.withColumn('state.a', val)