[jira] [Created] (FLINK-4188) Support for outer joins on DataStream

[Shang Yuanchun (Jira)]

Ignacio N. Lucero Ascencio created FLINK-4188:
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             Summary: Support for outer joins on DataStream
                 Key: FLINK-4188
                 URL: https://issues.apache.org/jira/browse/FLINK-4188
             Project: Flink
          Issue Type: New Feature
          Components: DataStream API
            Reporter: Ignacio N. Lucero Ascencio
            Priority: Minor


It would be nice to have support for outer joins on DataStream. DataSet supports all the outer joins (left, right, full) but DataStream only provides the inner join.
It has been pointed out that an outer join can be achieved with a coGroup, but I am of the opinion that having first-class support for outer joins would be nicer.



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