Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/5940#discussion_r186033401
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/runtime/stream/sql/SqlITCase.scala
---
@@ -52,6 +52,76 @@ class SqlITCase extends StreamingWithStateTestBase {
(8000L, "8", "Hello World"),
(20000L, "20", "Hello World"))
+ @Test
+ def testDistinctAggWithMergeOnEventTimeSessionGroupWindow(): Unit = {
+ // create a watermark with 10ms offset to delay the window emission by
10ms to verify merge
+ val sessionWindowTestdata = List(
+ (1L, 1, "Hello"),
--- End diff --
The test is not checking for DISTINCT semantics since all aggregated values
are distinct. We could do `COUNT(DISTINCT num)` (`int` has to be renamed to
`num` because its a SQL keyword).
---
