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Posted to issues@calcite.apache.org by "Julian Hyde (Jira)" <ji...@apache.org> on 2020/07/27 18:40:00 UTC

[jira] [Commented] (CALCITE-4143) Trim fields after XXProjectTransposeRule

    [ https://issues.apache.org/jira/browse/CALCITE-4143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17165908#comment-17165908 ] 

Julian Hyde commented on CALCITE-4143:
--------------------------------------

I don't understand what you are proposing. A rule cannot trim fields, because it has to preserve row type. We have RelFieldTrimmer. You can use it.

> 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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