[GitHub] flink pull request #4471: [FLINK-6094] [table] Implement stream-stream proct...

[hequn8128]

Github user hequn8128 commented on a diff in the pull request:

    https://github.com/apache/flink/pull/4471#discussion_r158489047
  
    --- Diff: 
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/util/UpdatingPlanChecker.scala
 ---
    @@ -116,14 +135,100 @@ object UpdatingPlanChecker {
               val windowStartEnd = w.getWindowProperties.map(_.name)
    --- End diff --
    
    Window can only output start or end field, right ?


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