Zouxxyy commented on code in PR #9051:
URL: https://github.com/apache/hudi/pull/9051#discussion_r1241887907


##########
hudi-spark-datasource/hudi-spark-common/src/main/scala/org/apache/spark/sql/hudi/command/AlterHoodieTableChangeColumnCommand.scala:
##########
@@ -102,4 +104,8 @@ case class AlterHoodieTableChangeColumnCommand(
         ", origin table schema :" + tableSchema + ", base path :" + 
metaClient.getBasePath)
     }
   }
+
+  // Add the comment to a column, if comment is empty, return the original 
column.
+  private def addComment(column: StructField, comment: Option[String]): 
StructField =

Review Comment:
   > addComment -> columnWithComment
   
   I just copyed from spark 
https://github.com/apache/spark/blob/2f3e4e36017d16d67086fd4ecaf39636a2fb4b7c/sql/core/src/main/scala/org/apache/spark/sql/execution/command/ddl.scala#L363
   



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