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https://issues.apache.org/jira/browse/CALCITE-3821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17044932#comment-17044932
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Julian Hyde commented on CALCITE-3821:
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* You changed the method names but not the comments. Very confusing.
* The constant {{B}} is now unused.
* Can you find out why {{B}} was introduced?
> RelOptUtil::containsMultisetOrWindowedAgg doesn't really check multiset
> -----------------------------------------------------------------------
>
> Key: CALCITE-3821
> URL: https://issues.apache.org/jira/browse/CALCITE-3821
> Project: Calcite
> Issue Type: Bug
> Reporter: Xiening Dai
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The check of containsMultiset() is shortcut by a "false" constant. Also what
> the function really does is to check rel node does *not* contain window aggs.
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