[ 
https://issues.apache.org/jira/browse/HIVE-16311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Pengcheng Xiong updated HIVE-16311:
-----------------------------------
    Fix Version/s:     (was: 2.2.0)
                   3.0.0

> Improve the performance for FastHiveDecimalImpl.fastDivide
> ----------------------------------------------------------
>
>                 Key: HIVE-16311
>                 URL: https://issues.apache.org/jira/browse/HIVE-16311
>             Project: Hive
>          Issue Type: Improvement
>    Affects Versions: 2.2.0
>            Reporter: Colin Ma
>            Assignee: Colin Ma
>             Fix For: 3.0.0
>
>         Attachments: HIVE-16311.001.patch
>
>
> FastHiveDecimalImpl.fastDivide is poor performance when evaluate the 
> expression as 12345.67/123.45
> There are 2 points can be improved:
> 1. Don't always use HiveDecimal.MAX_SCALE as scale when do the 
> BigDecimal.divide.
> 2. Get the precision for BigInteger in a fast way if possible.



--
This message was sent by Atlassian JIRA
(v6.3.15#6346)

Reply via email to