Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1255#discussion_r43953917
--- Diff:
flink-tests/src/test/java/org/apache/flink/test/javaApiOperators/PartitionITCase.java
---
@@ -71,6 +71,30 @@ public void testHashPartitionByKeyField() throws
Exception {
}
@Test
+ public void testRangePartitionByKeyField() throws Exception {
+ /*
+ * Test hash partition by key field
+ */
+
+ final ExecutionEnvironment env =
ExecutionEnvironment.getExecutionEnvironment();
+
+ DataSet<Tuple3<Integer, Long, String>> ds =
CollectionDataSets.get3TupleDataSet(env);
+ DataSet<Long> uniqLongs = ds
+ .partitionByRange(1)
+ .mapPartition(new UniqueLongMapper());
+ List<Long> result = uniqLongs.collect();
+
+ String expected = "1\n" +
+ "2\n" +
+ "3\n" +
+ "4\n" +
+ "5\n" +
+ "6\n";
+
+ compareResultAsText(result, expected);
+ }
+
--- End diff --
Please add another test with composite partition keys
(`.partitionByRange(0,2)`).
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