Aggregate Equivalent of Spark in Flink
Question
Is there any equivalent of Spark's RDD Aggregate for Flink's DataSet ?
After a few hours of searching it seems there is nothing.
Flink's DataSet API has an aggregate(agg: Aggregations, field: String): AggregateDataSet[T] but from its documentaion it seems its not similar to Spark.
Do I have to implement a custom Aggregations ?
1 answers
solution1
1 2018-07-13 07:19:08
它与Spark并不完全相同，但是您看过reduce了吗？
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