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Fabian Hueske commented on FLINK-4832: -------------------------------------- [~jark] is right. A zero count is only necessary for non-grouped aggregates. We should check the semantics of the remaining aggregations functions for this case as well. > Count/Sum 0 elements > -------------------- > > Key: FLINK-4832 > URL: https://issues.apache.org/jira/browse/FLINK-4832 > Project: Flink > Issue Type: Improvement > Components: Table API & SQL > Reporter: Timo Walther > > Currently, the Table API is unable to count or sum up 0 elements. We should > improve DataSet aggregations for this. Maybe by union the original DataSet > with a dummy record or by using a MapPartition function. Coming up with a > good design for this is also part of this issue. -- This message was sent by Atlassian JIRA (v6.3.4#6332)