Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/3364#discussion_r104722693
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/api/scala/batch/table/GroupWindowTest.scala
---
@@ -360,6 +360,19 @@ class GroupWindowTest extends TableTestBase {
.window(Session withGap 7.milli as 'w) // require on a time attribute
.groupBy('string, 'w)
.select('string, 'int.count)
+
+ val expected = unaryNode(
--- End diff --
Seems that I haven't seen the exception. Thanks.
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