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Posted to issues@calcite.apache.org by "Jiatao Tao (Jira)" <ji...@apache.org> on 2020/11/26 08:49:00 UTC

[jira] [Commented] (CALCITE-4420) Some simple arithmetic operations can be simplified

    [ https://issues.apache.org/jira/browse/CALCITE-4420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17239124#comment-17239124 ] 

Jiatao Tao commented on CALCITE-4420:
-------------------------------------

+1

> Some simple arithmetic operations can be simplified
> ---------------------------------------------------
>
>                 Key: CALCITE-4420
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4420
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>            Reporter: Liya Fan
>            Assignee: Liya Fan
>            Priority: Major
>
> Some simple arithmetic operations can be simplified, for example:
> a + 0 = a
> a - 0 = a
> a * 1 = a
> a / 1 = a
> In our product, we found such scenarios are fairly frequently encountered. For example, some SQL programmers use a * 1.0 as a convenient way to cast {{a}} to floating point type. 



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