[GitHub] [spark] venkata91 commented on a change in pull request #23803: [SPARK-26894][SQL] Handle Alias as well in AggregateEstimation to propagate child stats

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venkata91 commented on a change in pull request #23803: [SPARK-26894][SQL] Handle Alias as well in AggregateEstimation to propagate child stats
URL: https://github.com/apache/spark/pull/23803#discussion_r267041245
 
 

 ##########
 File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/statsEstimation/EstimationUtils.scala
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 @@ -71,6 +71,18 @@ object EstimationUtils {
     AttributeMap(output.flatMap(a => inputMap.get(a).map(a -> _)))
   }
 
+  /**
+   * Returns the stats for aliases of child's attributes
+   */
+  def getAliasStats(
 
 Review comment:
   Yeah, already changed that as part of the PR.

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