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https://issues.apache.org/jira/browse/CALCITE-931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14969265#comment-14969265
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Jesus Camacho Rodriguez commented on CALCITE-931:
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[~maryannxue], the change makes sense; I just checked the Sort operator
constructor and we enforce (via assertion) that the traits contain the given
collation, so I'm wondering why we didn't catch this?
> Wrong collation trait in SortJoinTransposeRule for right joins.
> ---------------------------------------------------------------
>
> Key: CALCITE-931
> URL: https://issues.apache.org/jira/browse/CALCITE-931
> Project: Calcite
> Issue Type: Bug
> Reporter: Maryann Xue
> Assignee: Maryann Xue
> Priority: Minor
> Attachments: CALCITE-931.patch
>
>
> The traitSet of the new Sort for Join's right child should be replaced with
> rightCollation.
> {code}
> newRightInput = sort.copy(sort.getTraitSet(), join.getRight(),
> rightCollation,
> sort.offset, sort.fetch);
> {code}
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