Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/4585#discussion_r142665388
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/runtime/stream/sql/SqlITCase.scala
---
@@ -92,6 +92,63 @@ class SqlITCase extends StreamingWithStateTestBase {
assertEquals(expected.sorted, StreamITCase.retractedResults.sorted)
}
+ @Test
+ def testUnboundedGroupByCollect(): Unit = {
+
+ val env = StreamExecutionEnvironment.getExecutionEnvironment
+ val tEnv = TableEnvironment.getTableEnvironment(env)
--- End diff --
add `env.setStateBackend(this.getStateBackend)` to enforce serialization
through the `MapView`.
---
