Github user fhueske commented on a diff in the pull request:
https://github.com/apache/incubator-flink/pull/244#discussion_r21091152
--- Diff: flink-java/src/main/java/org/apache/flink/api/java/DataSet.java
---
@@ -348,45 +360,75 @@ public ExecutionEnvironment getExecutionEnvironment()
{
}
/**
- * Applies a special case of a reduce transformation (minBy) on a
non-grouped {@link DataSet}.<br/>
- * The transformation consecutively calls a {@link ReduceFunction}
- * until only a single element remains which is the result of the
transformation.
- * A ReduceFunction combines two elements into one new element of the
same type.
- *
- * @param fields Keys taken into account for finding the minimum.
- * @return A {@link ReduceOperator} representing the minimum.
+ * Selects an element with minimum value.
+ * <p>
+ * The maximum is computed over the specified fields in lexicographical
order.
--- End diff --
maximum -> minimum
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