akashrn5 commented on a change in pull request #3129: [CARBONDATA-3295] Fix that MV datamap throw exception because its rewrite algorithm when query SQL has multiply subquery
URL:
https://github.com/apache/carbondata/pull/3129#discussion_r257600892
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File path: datamap/mv/plan/src/main/scala/org/apache/carbondata/mv/plans/modular/basicOperators.scala
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@@ -39,6 +39,21 @@ case class GroupBy(
flagSpec: Seq[Seq[Any]],
dataMapTableRelation: Option[ModularPlan] = None) extends UnaryNode with Matchable {
override def output: Seq[Attribute] = outputList.map(_.toAttribute)
+
Review comment:
please add comments, same applicable for next one more method also
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