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https://issues.apache.org/jira/browse/CALCITE-7348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18049051#comment-18049051
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xiong duan commented on CALCITE-7348:
-------------------------------------
Fixed in
[45e41e8|https://github.com/apache/calcite/commit/45e41e8db6f7da147b9981aba856243c6c4736c4].
Thanks for the review [~mbudiu] .
> Remove redundant extraction correlation variables when Trim Project Fields
> --------------------------------------------------------------------------
>
> Key: CALCITE-7348
> URL: https://issues.apache.org/jira/browse/CALCITE-7348
> Project: Calcite
> Issue Type: Bug
> Reporter: xiong duan
> Assignee: xiong duan
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.42.0
>
>
> In RelFieldTrimmer：
> {code:java}
> trimFields( Project project, ImmutableBitSet fieldsUsed,
> Set<RelDataTypeField> extraFields){code}
> The Project RelNode already has the corresponding correlation variables, so
> there is no need to extract them again from the Project.
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