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