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https://issues.apache.org/jira/browse/CALCITE-527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14244986#comment-14244986
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Julian Hyde commented on CALCITE-527:
-------------------------------------

Yes, but make sure that the creator of the calc can set the output field names 
that they want. Meaningful field names make it a lot easier to understand plans 
and to debug.

> Drop rowType field and constructor/copy argument of Calc and Project
> --------------------------------------------------------------------
>
>                 Key: CALCITE-527
>                 URL: https://issues.apache.org/jira/browse/CALCITE-527
>             Project: Calcite
>          Issue Type: Bug
>    Affects Versions: 1.0.0-incubating
>            Reporter: Vladimir Sitnikov
>            Assignee: Julian Hyde
>              Labels: newbie
>
> rowType can always be derived from the program.
> It does not make sense to have it as additional argument.



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