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https://issues.apache.org/jira/browse/CALCITE-4428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17246275#comment-17246275
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Jiatao Tao commented on CALCITE-4428:
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Hi[~julianhyde] , sorry to bother you, can you take a look at this, cuz it is a
performance issue, the fix is quite simple, just remove rel from
`mapRel2Subset.remove(rel);` when it has been outdated.
> Remove the equiv rel from mapRel2Subset when merging set
> --------------------------------------------------------
>
> Key: CALCITE-4428
> URL: https://issues.apache.org/jira/browse/CALCITE-4428
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Jiatao Tao
> Assignee: Jiatao Tao
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
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