Github user jackylk commented on a diff in the pull request: https://github.com/apache/carbondata/pull/1694#discussion_r158932405 --- Diff: integration/spark2/src/main/scala/org/apache/spark/sql/execution/command/preaaggregate/PreAggregateUtil.scala --- @@ -166,127 +208,160 @@ object PreAggregateUtil { aggFunctions: AggregateFunction, parentTableName: String, parentDatabaseName: String, - parentTableId: String) : scala.collection.mutable.ListBuffer[(Field, DataMapField)] = { + parentTableId: String, + newColumnName: String) : scala.collection.mutable.ListBuffer[(Field, DataMapField)] = { --- End diff -- what is this field? please add comment of this function
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