[
https://issues.apache.org/jira/browse/CALCITE-889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14847348#comment-14847348
]
Jacques Nadeau commented on CALCITE-889:
----------------------------------------
I haven't looked at the patch here. However, I'm not quite clear how this a
valid transformation in logical land. What reason is there to assume a union
maintains collation?
> 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
> Attachments: CALCITE-889.01.patch
>
>
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
