Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1517#discussion_r52458969
--- Diff:
flink-core/src/main/java/org/apache/flink/api/common/operators/base/ReduceOperatorBase.java
---
@@ -52,6 +52,30 @@
*/
public class ReduceOperatorBase<T, FT extends ReduceFunction<T>> extends
SingleInputOperator<T, T, FT> {
+ /**
+ * An enumeration of hints, optionally usable to tell the system
exactly how to execute the reduce.
+ */
+ public enum ReduceHint {
--- End diff --
Should be renamed to `CombineHint` and all corresponding methods and member
variables as well.
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