[GitHub] [spark] maropu commented on pull request #29010: [SPARK-32192][SQL] Print column name when throws ClassCastException

[GitBox <gi...@apache.org>]

maropu commented on pull request #29010:
URL: https://github.com/apache/spark/pull/29010#issuecomment-654219970


   Thanks for your contribution, @StefanXiepj ! btw, which Spark version you used? I think the current master does not accept the alter command;
   ```
   scala> sql("""alter table cast_exception_test change column c1 c1 string""")
   org.apache.spark.sql.AnalysisException: ALTER TABLE CHANGE COLUMN is not supported for changing column 'c1' with type 'IntegerType' to 'c1' with type 'StringType';
   ```


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