[GitHub] flink pull request: FLINK-3650 Add maxBy/minBy to Scala DataSet AP...

[ramkrish86 <gi...@git.apache.org>]

Github user ramkrish86 commented on a diff in the pull request:

    https://github.com/apache/flink/pull/1856#discussion_r61769474
  
    --- Diff: flink-java/src/main/java/org/apache/flink/api/java/functions/SelectByMinFunction.java ---
    @@ -72,8 +73,8 @@ public T reduce(T value1, T value2) throws Exception {
     		for (int position : fields) {
     			// Save position of compared key
     			// Get both values - both implement comparable
    -			Comparable comparable1 = value1.getFieldNotNull(position);
    -			Comparable comparable2 = value2.getFieldNotNull(position);
    +			Comparable comparable1 = ((Tuple)value1).getFieldNotNull(position);
    --- End diff --
    
    I have a doubt here. Previously also this SelectByMaxFunction was extending T extends Tuple. So TupleTypeInfo was actually allowed here. So even now we are allowing TypeInformation<T> which is the super class of TupleTypeInfo. So it should work the same way as it was earlier?


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