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https://issues.apache.org/jira/browse/FLINK-3234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15133894#comment-15133894
]
ASF GitHub Bot commented on FLINK-3234:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1585#discussion_r51993427
--- Diff:
flink-tests/src/test/java/org/apache/flink/test/javaApiOperators/SortPartitionITCase.java
---
@@ -197,6 +198,58 @@ public void testSortPartitionParallelismChange()
throws Exception {
compareResultAsText(result, expected);
}
+ @Test
+ public void testSortPartitionWithKeySelector1() throws Exception {
+ /*
+ * Test sort partition on an extracted key
+ */
+
+ final ExecutionEnvironment env =
ExecutionEnvironment.getExecutionEnvironment();
+ env.setParallelism(4);
+
+ DataSet<Tuple3<Integer, Long, String>> ds =
CollectionDataSets.get3TupleDataSet(env);
+ List<Tuple1<Boolean>> result = ds
+ .map(new IdMapper<Tuple3<Integer, Long,
String>>()).setParallelism(4) // parallelize input
+ .sortPartition(new KeySelector<Tuple3<Integer, Long,
String>, Integer>() {
+ @Override
+ public Integer getKey(Tuple3<Integer, Long,
String> value) throws Exception {
+ return value.f0;
--- End diff --
return some other field than `f0`.
> SortPartition does not support KeySelectorFunctions
> ---------------------------------------------------
>
> Key: FLINK-3234
> URL: https://issues.apache.org/jira/browse/FLINK-3234
> Project: Flink
> Issue Type: Improvement
> Components: DataSet API
> Affects Versions: 1.0.0, 0.10.1
> Reporter: Fabian Hueske
> Assignee: Chiwan Park
> Fix For: 1.0.0
>
>
> The following is not supported by the DataSet API:
> {code}
> DataSet<MyObject> data = ...
> DataSet<MyObject> data.sortPartition(
> new KeySelector<MyObject, Long>() {
> public Long getKey(MyObject v) {
> ...
> }
> },
> Order.ASCENDING);
> {code}
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