Github user fhueske commented on the issue:
https://github.com/apache/flink/pull/3110
Thanks @gallenvara, the changes look good to me but we would also need a
few tests.
@aljoscha, what do you think about this change? Should we add it to be
consistent with the Java API or do you think it would bloat the API too much?
IIRC, there have been some discussions about the built-in aggregation functions.
Best, Fabian
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