Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3386#discussion_r106625475
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/api/scala/stream/sql/SqlITCase.scala
---
@@ -317,4 +320,119 @@ class SqlITCase extends StreamingWithStateTestBase {
result.addSink(new StreamITCase.StringSink)
env.execute()
}
+
+ /** test sliding event-time unbounded window with partition by **/
+ @Test
+ def testUnboundedEventTimeRowWindowWithPartition(): Unit = {
+ val env = StreamExecutionEnvironment.getExecutionEnvironment
+ val tEnv = TableEnvironment.getTableEnvironment(env)
+ env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime)
+ env.setStateBackend(getStateBackend)
+ StreamITCase.testResults = mutable.MutableList()
+ env.setParallelism(1)
+
+ val sqlQuery = "SELECT a, b, c, " +
+ "SUM(a) over (" +
+ "partition by a order by rowtime() range between unbounded preceding
and current row), " +
+ "count(a) over (" +
+ "partition by a order by rowtime() range between unbounded preceding
and current row), " +
+ "avg(a) over (" +
--- End diff --
Computing `avg`, `max`, `min` on the partition key is not very meaningful.
Can you compute those on `b`?
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