[GitHub] [calcite] yanlin-Lynn opened a new pull request #1557: [CALCITE-3473] Result of getting unique result for table scan should contain key column(s)

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yanlin-Lynn opened a new pull request #1557: [CALCITE-3473] Result of getting unique result for table scan should contain key column(s)
URL: https://github.com/apache/calcite/pull/1557
 
 
   For table with key column(s) defined, we can refer uniqueness on key column(s),
   so the result should contain key column(s)

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