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https://issues.apache.org/jira/browse/HIVE-6027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13847071#comment-13847071
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Ashutosh Chauhan commented on HIVE-6027:
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+1
> 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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