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Posted to dev@flink.apache.org by "Hequn Cheng (JIRA)" <ji...@apache.org> on 2018/12/04 12:11:00 UTC

[jira] [Created] (FLINK-11070) Add stream-stream non-window cross join

Hequn Cheng created FLINK-11070:
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             Summary: Add stream-stream non-window cross join
                 Key: FLINK-11070
                 URL: https://issues.apache.org/jira/browse/FLINK-11070
             Project: Flink
          Issue Type: New Feature
          Components: Table API &amp; SQL
            Reporter: Hequn Cheng
            Assignee: Hequn Cheng


Currently, stream-stream non-window cross join has not been supported. It would be nice to support it on streaming. We can start from a simple version, for example, call forceNonParallel() for connectOperator in `DataStreamJoin` when it is a cross join. Optimizations can be done later, such as broadcasting the smaller side, etc.
Any suggestions are greatly appreciated.



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