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https://issues.apache.org/jira/browse/CALCITE-4143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17166240#comment-17166240
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Jiatao Tao commented on CALCITE-4143:
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[~julianhyde] I know RelFieldTrimmer, but it only used before the volcano phase
as I first mentioned. Is there any change we can do it again after the volcano
phase?
> Trim fields after XXProjectTransposeRule
> ----------------------------------------
>
> Key: CALCITE-4143
> URL: https://issues.apache.org/jira/browse/CALCITE-4143
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Jiatao Tao
> Assignee: Jiatao Tao
> Priority: Major
>
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