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Posted to issues@calcite.apache.org by "Julian Hyde (JIRA)" <ji...@apache.org> on 2019/02/12 20:45:01 UTC

[jira] [Commented] (CALCITE-2840) Simplification may use narrower UnknownAs modes during AND/OR simplification

    [ https://issues.apache.org/jira/browse/CALCITE-2840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16766432#comment-16766432 ] 

Julian Hyde commented on CALCITE-2840:
--------------------------------------

Can you clarify "may"? The word is ambiguous. Do you mean that it sometimes uses narrower than it should, or it could be made narrower? I often find it useful to use "should" in a JIRA case title, to indicate what the desired behavior is.

Also, an example would be really useful. I don't understand "narrower".

> Simplification may use narrower UnknownAs modes during AND/OR simplification
> ----------------------------------------------------------------------------
>
>                 Key: CALCITE-2840
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2840
>             Project: Calcite
>          Issue Type: Improvement
>            Reporter: Zoltan Haindrich
>            Assignee: Zoltan Haindrich
>            Priority: Major
>
> Some parts of this was already working in 1.17 ; but 1.18 turned out to be a more conservative in this sense.



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