org.apache.spark.sql.catalyst.expressions.GenericRowWithSchema cannot be cast to scala.Tuple2

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本文链接： https://blog.csdn.net/helloworld0906/article/details/102716347

https://blog.csdn.net/gg584741/article/details/77884060

https://stackoverflow.com/questions/37553059/extracting-seqstring-string-string-from-spark-dataframe

http://apache-spark-developers-list.1001551.n3.nabble.com/ClassCastException-when-extracting-and-collecting-DF-array-column-type-td17057.html

https://blog.csdn.net/Code_LT/article/details/87719115

https://juejin.im/post/5cf9ca9651882575f333f5de