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https://issues.apache.org/jira/browse/CALCITE-4012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17119881#comment-17119881
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Rui Wang commented on CALCITE-4012:
-----------------------------------
I probably will start from this one after trait propagation in project/filter
is done. This JIRA looks have no blocker.
> Implement trait propagation for EnumerableHashJoin and
> EnumerableNestedLoopJoin
> -------------------------------------------------------------------------------
>
> Key: CALCITE-4012
> URL: https://issues.apache.org/jira/browse/CALCITE-4012
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Haisheng Yuan
> Assignee: Rui Wang
> Priority: Major
> Fix For: 1.24.0
>
>
> The traitset can be derived from the outer relation of
> hashjoin/nestedloopjoin.
> They can also pass down parent trait request to their outer child.
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