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https://issues.apache.org/jira/browse/CALCITE-4013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17816248#comment-17816248
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TJ Banghart commented on CALCITE-4013:
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Hey [~Aron.tao] any update on this? If not I'd be happy to give it a go. That
is, if the ticket is still relevant.
> Remove traitset derivation when creating logical operators
> ----------------------------------------------------------
>
> Key: CALCITE-4013
> URL: https://issues.apache.org/jira/browse/CALCITE-4013
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Haisheng Yuan
> Assignee: Jiatao Tao
> Priority: Major
> Attachments: image-2020-06-12-08-46-26-846.png
>
>
> Profiler shows traitset derivation accounts for 65% of the total runtime of
> LoigcalProject.create(). Anyway, EnumerableProject will do it again.
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