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Posted to issues@flink.apache.org by "Caizhi Weng (Jira)" <ji...@apache.org> on 2020/10/14 02:56:00 UTC

[jira] [Created] (FLINK-19621) Introduce Multi-input operator in Blink planner

Caizhi Weng created FLINK-19621:
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             Summary: Introduce Multi-input operator in Blink planner
                 Key: FLINK-19621
                 URL: https://issues.apache.org/jira/browse/FLINK-19621
             Project: Flink
          Issue Type: New Feature
          Components: Table SQL / Planner, Table SQL / Runtime
            Reporter: Caizhi Weng
             Fix For: 1.12.0


As runtime now supports multi-input tasks and source chaining, we're going to introduce multi-input operator in Blink planner to remove unnecessary shuffle, thus improve the performance for both batch and streaming.

Design doc: https://docs.google.com/document/d/1qKVohV12qn-bM51cBZ8Hcgp31ntwClxjoiNBUOqVHsI/edit



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