[jira] [Created] (CALCITE-4699) Support expand UNIQUE sub-queries into joins

[duan xiong (Jira)]

duan xiong created CALCITE-4699:
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             Summary: Support expand UNIQUE sub-queries into joins
                 Key: CALCITE-4699
                 URL: https://issues.apache.org/jira/browse/CALCITE-4699
             Project: Calcite
          Issue Type: Improvement
            Reporter: duan xiong






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