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Posted to issues@spark.apache.org by "Gengliang Wang (Jira)" <ji...@apache.org> on 2021/12/13 15:28:00 UTC
[jira] [Created] (SPARK-37631) Code clean up on promoting strings in math functions
Gengliang Wang created SPARK-37631:
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Summary: 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
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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