[jira] [Created] (SPARK-29096) The exact math method should be called only when there is a corresponding function in Math

["Gengliang Wang (Jira)" <ji...@apache.org>]

Gengliang Wang created SPARK-29096:
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             Summary: The exact math method should be called only when there is a corresponding function in Math
                 Key: SPARK-29096
                 URL: https://issues.apache.org/jira/browse/SPARK-29096
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: Gengliang Wang
            Assignee: Gengliang Wang


After https://github.com/apache/spark/pull/21599, if the option "spark.sql.failOnIntegralTypeOverflow" is enabled, all the Binary Arithmetic operator will used the exact version function. 
However, only `Add`/`Substract`/`Multiply` has a corresponding exact function in java.lang.Math . When the option "spark.sql.failOnIntegralTypeOverflow" is enabled, a runtime exception "BinaryArithmetics must override either exactMathMethod or genCode" is thrown if the other Binary Arithmetic operators are used, such as "Divide", "Remainder".

The exact math method should be called only when there is a corresponding function in Math



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