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Posted to issues@calcite.apache.org by "Wang Yanlin (Jira)" <ji...@apache.org> on 2019/11/04 08:25:00 UTC

[jira] [Created] (CALCITE-3473) Unique keys of table scan should contain key column(s)

Wang Yanlin created CALCITE-3473:
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             Summary: Unique keys of table scan should contain key column(s)
                 Key: CALCITE-3473
                 URL: https://issues.apache.org/jira/browse/CALCITE-3473
             Project: Calcite
          Issue Type: Improvement
            Reporter: Wang Yanlin


Currently,   *mq.getUniqueKeys()*  for  *TableScan* returns empty.

However, 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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