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https://issues.apache.org/jira/browse/HIVE-6027?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Shelukhin updated HIVE-6027:
-----------------------------------

    Status: Patch Available  (was: Open)

> non-vectorized log10 has rounding issue
> ---------------------------------------
>
>                 Key: HIVE-6027
>                 URL: https://issues.apache.org/jira/browse/HIVE-6027
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Sergey Shelukhin
>            Assignee: Sergey Shelukhin
>            Priority: Trivial
>         Attachments: HIVE-6027.patch
>
>
> In HIVE-6010, I found that vectorized and non-vectorized log10 may produce 
> different results in the last digit of the mantissa (e.g. 7 vs 8). It turns 
> out that vectorized one uses Math.log10, but non-vectorized uses log/log(10). 
> Both should use Math.log10.



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