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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