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https://issues.apache.org/jira/browse/FLINK-3650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15292881#comment-15292881
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ASF GitHub Bot commented on FLINK-3650:
---------------------------------------
Github user ramkrish86 commented on a diff in the pull request:
https://github.com/apache/flink/pull/1856#discussion_r64000091
--- 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 --
@tillrohrmann - I have done the needful updates and now I can see maxBy
and minBy works with scala tuples. It took some time as was busy with other
things but some how could find time to complete this. In the process learnt
some scala too. Let me know what you think of this last commit.
> Add maxBy/minBy to Scala DataSet API
> ------------------------------------
>
> Key: FLINK-3650
> URL: https://issues.apache.org/jira/browse/FLINK-3650
> Project: Flink
> Issue Type: Improvement
> Components: Java API, Scala API
> Affects Versions: 1.1.0
> Reporter: Till Rohrmann
> Assignee: ramkrishna.s.vasudevan
>
> The stable Java DataSet API contains the API calls {{maxBy}} and {{minBy}}.
> These methods are not supported by the Scala DataSet API. These methods
> should be added in order to have a consistent API.
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