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https://issues.apache.org/jira/browse/CALCITE-3462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16989657#comment-16989657
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Stamatis Zampetakis commented on CALCITE-3462:
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Hey [~julianhyde], I updated the PR adopting your suggestions. I used a new
Resource exception to indicate the failure but I am wondering if it is the
right approach since some parts of the builder are throwing
IllegalArgumentException and some others Resource based.
> Add projectExcept method in RelBuilder for projecting out expressions
> ---------------------------------------------------------------------
>
> Key: CALCITE-3462
> URL: https://issues.apache.org/jira/browse/CALCITE-3462
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.21.0
> Reporter: Stamatis Zampetakis
> Assignee: Stamatis Zampetakis
> Priority: Trivial
> Labels: pull-request-available
> Fix For: 1.22.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Add a new method in RelBuilder (i.e., {{RelBuilder.projectMinus}}) to
> facilitate the task of projecting out certain expressions from the top of the
> plan.
> The proposed method is purely for convenience and is the dual of the existing
> {{RelBuilder.projectPlus}}.
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