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https://issues.apache.org/jira/browse/CALCITE-3473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Haisheng Yuan resolved CALCITE-3473.
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Fix Version/s: 1.22.0
Resolution: Fixed
Fixed in
https://github.com/apache/calcite/commit/ed181a4671b9941f2852c581daa043d8a2d6dec2.
Thanks for the PR, [~yanlin-Lynn]!
> Getting unique result for 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
> Assignee: Wang Yanlin
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.22.0
>
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> 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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