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https://issues.apache.org/jira/browse/CALCITE-4017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17114903#comment-17114903
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Rui Wang commented on CALCITE-4017:
-----------------------------------
Agreed. We can continue on this Jira. Meanwhile, I have logged
https://issues.apache.org/jira/browse/CALCITE-4021 to track the change in
EnumerableUnion.
I will try to address comments in https://github.com/apache/calcite/pull/1985
soon to make it merge fater, such than following work can be unblocked (since
#1985 changes a lot on testing code).
> Implement trait propagation for Enumerable Setop
> -------------------------------------------------
>
> Key: CALCITE-4017
> URL: https://issues.apache.org/jira/browse/CALCITE-4017
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Haisheng Yuan
> Priority: Major
>
> Mainly for Union operator, not sure about Minus and Intersect. I haven't
> check how is Enumerable Minus, Intersect's executor implemented.
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