[GitHub] [spark] cloud-fan commented on a change in pull request #28326: [SPARK-27340][SS] Alias on TimeWindow expression cause watermark metadata lost

cloud-fan commented on a change in pull request #28326: URL: https://github.com/apache/spark/pull/28326#discussion_r415859659 ## File path: sql/core/src/main/scala/org/apache/spark/sql/Column.scala ## @@ -1040,17 +1034,11 @@ class Column(val expr: Expression) extends Logging {

[GitHub] [spark] cloud-fan commented on a change in pull request #28326: [SPARK-27340][SS] Alias on TimeWindow expression cause watermark metadata lost

cloud-fan commented on a change in pull request #28326: URL: https://github.com/apache/spark/pull/28326#discussion_r415531970 ## File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala ## @@ -3262,10 +3262,21 @@ object CleanupAliases