HeartSaVioR commented on a change in pull request #29256:
URL: https://github.com/apache/spark/pull/29256#discussion_r471945148
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File path:
sql/core/src/test/scala/org/apache/spark/sql/streaming/StreamingQuerySuite.scala
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@@ -1106,6 +1107,54 @@ class StreamingQuerySuite extends StreamTest with
BeforeAndAfter with Logging wi
}
}
+ test("union in streaming query of append mode without watermark") {
+ val inputData1 = MemoryStream[Int]
+ val inputData2 = MemoryStream[Int]
+ withTempView("s1", "s2") {
+ inputData1.toDF().createOrReplaceTempView("s1")
+ inputData2.toDF().createOrReplaceTempView("s2")
+ val unioned = spark.sql(
+ "select s1.value from s1 union select s2.value from s2")
+ checkExceptionMessage(unioned)
+ }
+ }
+
+ test("distinct in streaming query of append mode without watermark") {
+ val inputData = MemoryStream[Int]
+ withTempView("deduptest") {
+ inputData.toDF().toDF("value").createOrReplaceTempView("deduptest")
+ val distinct = spark.sql("select distinct value from deduptest")
+ checkExceptionMessage(distinct)
+ }
+ }
+
+ test("distinct in streaming query of complete mode") {
+ val inputData = MemoryStream[Int]
+ withTempView("deduptest") {
+ inputData.toDF().toDF("value").createOrReplaceTempView("deduptest")
+ val distinct = spark.sql("select distinct value from deduptest")
+
+ testStream(distinct, Complete)(
+ AddData(inputData, 1, 2, 3, 3, 4),
+ CheckAnswer(Row(1), Row(2), Row(3), Row(4))
Review comment:
What I am suggesting is that waiting and hearing the operations we have
been restricted on SS with the reasons, and if the reasons make sense then ban
them even with SQL statements. Not only distinct.
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