akashrn5 commented on a change in pull request #4121:
URL: https://github.com/apache/carbondata/pull/4121#discussion_r620955519
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File path:
integration/spark/src/main/scala/org/apache/spark/sql/execution/command/schema/CarbonAlterTableDropColumnCommand.scala
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@@ -147,19 +143,30 @@ private[sql] case class CarbonAlterTableDropColumnCommand(
metastore.getThriftTableInfo(carbonTable)
// maintain the deleted columns for schema evolution history
Review comment:
please edit comment saying `deletedColumnSchema ` contains parent column
schema and child also in case of complex and `deletedTableColumns ` contains
only parent columns in case of complex to add in schemaEvolution entry
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