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https://issues.apache.org/jira/browse/CALCITE-3363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16933072#comment-16933072
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Wang Yanlin commented on CALCITE-3363:
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Can you give some more specific examples, I cannot see why it should not.
> JoinUnionTransposeRule.RIGHT_UNION should not match SEMI/ANTI Join
> ------------------------------------------------------------------
>
> Key: CALCITE-3363
> URL: https://issues.apache.org/jira/browse/CALCITE-3363
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: jin xing
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> JoinUnionTransposeRule works by pull up union from below to top of join. Thus
> it should not match semi/anti join by semantics.
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