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In this FLIP, we propose two main enhancements. Firstly, we propose enabling DataStream to directly transform into a PartitionWindowedStream. The PartitionWindowedStream represents collecting all records of each subtask separately into a full window. Secondly, we propose supporting four APIs on PartitionWindowedStream, including mapPartition, sortPartition, aggregate and and reduce.
Public Interfaces
1. We introduce the fullWindowPartition
method to the DataStream class.
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