HeartSaVioR commented on a change in pull request #23576: [SPARK-26655] [SS]
Support multiple aggregates in append mode
URL: https://github.com/apache/spark/pull/23576#discussion_r248928746
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File path:
sql/core/src/test/scala/org/apache/spark/sql/streaming/EventTimeWatermarkSuite.scala
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@@ -302,6 +302,71 @@ class EventTimeWatermarkSuite extends StreamTest with
BeforeAndAfter with Matche
)
}
+ test("multiple aggregates in append mode") {
+ val inputData = MemoryStream[Int]
+
+ val windowedAggregation = inputData.toDF()
+ .withColumn("inputtime", $"value".cast("timestamp"))
+ .withWatermark("inputtime", "10 seconds")
+ .groupBy(window($"inputtime", "5 seconds") as 'window1,
$"inputtime").count()
+ .select($"window1.end".as("windowtime"), $"count".as("num"))
+ .withWatermark("windowtime", "5 seconds")
+ .groupBy(window($"windowtime", "5 seconds") as 'window2, $"num").count()
+ .select($"window2.start".cast("long").as[Long], $"num", $"count")
+
+ testStream(windowedAggregation)(
+ AddData(inputData, 10, 11, 11, 12, 12),
+ CheckNewAnswer(),
+ AddData(inputData, 25), // watermark -> group1 = 15, group2 = 10
Review comment:
Now I see you're adding current states in other test. It would be ideal we
have similar level of explanation here.
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