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https://issues.apache.org/jira/browse/SPARK-28324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16881748#comment-16881748
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Yuming Wang commented on SPARK-28324:
-------------------------------------

PostgreSQL, Vertica, Teradata using 10 as the base. 
DB2, SQL Server, Hive and MySQL using E as the base.



> The LOG function using 10 as the base, but Spark using E
> --------------------------------------------------------
>
>                 Key: SPARK-28324
>                 URL: https://issues.apache.org/jira/browse/SPARK-28324
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Yuming Wang
>            Priority: Major
>
> Spark SQL:
> {code:sql}
> spark-sql> select log(10);
> 2.302585092994046
> {code}
> PostgreSQL:
> {code:sql}
> postgres=# select log(10);
>  log
> -----
>    1
> (1 row)
> {code}



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