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https://issues.apache.org/jira/browse/CALCITE-5149?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chunwei Lei resolved CALCITE-5149.
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Fix Version/s: 1.31.0
Resolution: Fixed
Fixed in
https://github.com/apache/calcite/commit/c5d45cb094407658f5f933240bc4492b6239e45e.
> Refine RelMdColumnUniqueness for Aggregate by considering intersect keys
> between target keys and group keys
> ------------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-5149
> URL: https://issues.apache.org/jira/browse/CALCITE-5149
> Project: Calcite
> Issue Type: Improvement
> Reporter: Chunwei Lei
> Assignee: Chunwei Lei
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.31.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> For instance,
> columns: [0, 1]
> group keys: [0, 2]
> If [0] is unique, then [0, 1] is unique too.
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