Github user shardul-cr7 commented on a diff in the pull request: https://github.com/apache/carbondata/pull/3045#discussion_r245516216 --- Diff: integration/spark2/src/main/scala/org/apache/spark/sql/execution/command/preaaggregate/PreAggregateTableHelper.scala --- @@ -110,7 +110,29 @@ case class PreAggregateTableHelper( // Datamap table name and columns are automatically added prefix with parent table name // in carbon. For convenient, users can type column names same as the ones in select statement // when config dmproperties, and here we update column names with prefix. - val longStringColumn = tableProperties.get(CarbonCommonConstants.LONG_STRING_COLUMNS) --- End diff -- This PR is for the scenario when user doesn't config the long_string_columns in dmprop then we take long_string_cols from the parent table.
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