Github user jackylk commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/1694#discussion_r159032692
--- Diff: integration/spark2/src/main/scala/org/apache/spark/sql/execution/command/preaaggregate/PreAggregateUtil.scala ---
@@ -156,137 +203,189 @@ object PreAggregateUtil {
* and other of sum of that column to support rollup
*
* @param carbonTable
+ * parent carbon table
--- End diff --
move to previous line
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