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Posted to issues@spark.apache.org by "Gengliang Wang (Jira)" <ji...@apache.org> on 2021/12/14 03:08:00 UTC

[jira] [Resolved] (SPARK-37631) Code clean up on promoting strings in math functions

     [ https://issues.apache.org/jira/browse/SPARK-37631?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gengliang Wang resolved SPARK-37631.
------------------------------------
    Fix Version/s: 3.3.0
       Resolution: Fixed

Issue resolved by pull request 34884
[https://github.com/apache/spark/pull/34884]

> Code clean up on promoting strings in math functions
> ----------------------------------------------------
>
>                 Key: SPARK-37631
>                 URL: https://issues.apache.org/jira/browse/SPARK-37631
>             Project: Spark
>          Issue Type: Task
>          Components: SQL
>    Affects Versions: 3.3.0
>            Reporter: Gengliang Wang
>            Assignee: Gengliang Wang
>            Priority: Trivial
>             Fix For: 3.3.0
>
>
> There is some similar logic in promoting string to double type in TypeCoercion and AnsiTypeCoercion.
> We can change the function Abs/UnaryMinus/UnaryPositive to extend 
> ImplicitCastInputTypes so that string will implicitly cast to Double type in the rule `ImplicitTypeCasts`.  We don't have to repeat the logic in rule `PromoteStrings` or `PromoteStringLiterals`



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