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https://issues.apache.org/jira/browse/CALCITE-889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14967414#comment-14967414
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Julian Hyde commented on CALCITE-889:
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[~maryannxue], It would make sense to apply the rule in that case, yes.
You will still need to be careful if the Sort has an offset as well as a fetch.
I'm not sure what would be the right thing to do in that case.
> Implement SortUnionTransposeRule
> --------------------------------
>
> Key: CALCITE-889
> URL: https://issues.apache.org/jira/browse/CALCITE-889
> Project: Calcite
> Issue Type: Sub-task
> Reporter: Pengcheng Xiong
> Assignee: Julian Hyde
> Fix For: 1.5.0-incubating
>
> Attachments: CALCITE-889.01.patch, CALCITE-889.02.patch
>
>
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