Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1585#discussion_r52281965
--- Diff: flink-java/src/main/java/org/apache/flink/api/java/DataSet.java
---
@@ -1377,6 +1377,24 @@ public long count() throws Exception {
return new SortPartitionOperator<>(this, field, order,
Utils.getCallLocationName());
}
+ /**
+ * Locally sorts the partitions of the DataSet on the an extracted key
in the specified order.
+ * DataSet can be sorted on multiple values by returning a tuple from
the KeySelector.
+ *
+ * Note that any key extraction methods cannot be chained with the
KeySelector. To sort the
--- End diff --
"Note that any key extraction methods cannot be ..." -> "Note that no
additional sort keys can be appended to a KeySelector."
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