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https://issues.apache.org/jira/browse/FLINK-4575?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gabor Gevay reassigned FLINK-4575:
----------------------------------

    Assignee: Gabor Gevay

> DataSet aggregate methods should support POJOs
> ----------------------------------------------
>
>                 Key: FLINK-4575
>                 URL: https://issues.apache.org/jira/browse/FLINK-4575
>             Project: Flink
>          Issue Type: Improvement
>          Components: DataSet API
>            Reporter: Gabor Gevay
>            Assignee: Gabor Gevay
>            Priority: Minor
>              Labels: starter
>
> The aggregate methods of DataSets (aggregate, sum, min, max) currently only 
> support Tuples, with the fields specified by indices. With 
> https://issues.apache.org/jira/browse/FLINK-3702 resolved, adding support for 
> POJOs and field expressions would be easy: {{AggregateOperator}} would create 
> {{FieldAccessors}} instead of just storing field positions, and 
> {{AggregateOperator.AggregatingUdf}} would use these {{FieldAccessors}} 
> instead of the Tuple field access methods.



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