Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/572#discussion_r28696965
--- Diff:
flink-tests/src/test/java/org/apache/flink/test/javaApiOperators/JoinITCase.java
---
@@ -663,6 +663,39 @@ public void
testNonPojoToVerifyNestedTupleElementSelectionWithFirstKeyFieldGreat
"((3,2,Hello world),(3,2,Hello
world)),((3,2,Hello world),(3,2,Hello world))\n";
}
+ @Test
+ public void testJoinWithAtomicType1() throws Exception {
+ final ExecutionEnvironment env =
ExecutionEnvironment.getExecutionEnvironment();
+
+ DataSet<Tuple3<Integer, Long, String>> ds1 =
CollectionDataSets.getSmall3TupleDataSet(env);
+ DataSet<Integer> ds2 = env.fromElements(1, 2);
+
+ DataSet<Tuple2<Tuple3<Integer, Long, String>, Integer>> joinDs
= ds1.join(ds2).where(0).equalTo("*");
+
+ joinDs.writeAsCsv(resultPath);
+ env.setParallelism(1);
--- End diff --
Why parallelism == 1?
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