[jira] [Created] (FLINK-1091) Allow joins with the solution set using key selectors

[Shang Yuanchun (Jira)]

Vasia Kalavri created FLINK-1091:
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             Summary: Allow joins with the solution set using key selectors
                 Key: FLINK-1091
                 URL: https://issues.apache.org/jira/browse/FLINK-1091
             Project: Flink
          Issue Type: Improvement
          Components: Iterations
            Reporter: Vasia Kalavri
            Priority: Minor


Currently, the solution set may only be joined with using tuple field positions.
A possible solution can be providing explicit functions "joinWithSolution" and "coGroupWithSolution" to make sure the keys used are valid.



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