[
https://issues.apache.org/jira/browse/HIVE-5992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13853484#comment-13853484
]
Prasad Mujumdar commented on HIVE-5992:
---------------------------------------
+1
> Hive inconsistently converts timestamp in AVG and SUM UDAF's
> ------------------------------------------------------------
>
> Key: HIVE-5992
> URL: https://issues.apache.org/jira/browse/HIVE-5992
> Project: Hive
> Issue Type: Bug
> Components: UDF
> Affects Versions: 0.12.0
> Reporter: Xuefu Zhang
> Assignee: Xuefu Zhang
> Attachments: HIVE-5992.patch
>
>
> {code}
> hive> select t, sum(t), count(*), sum(t)/count(*), avg(t) from ts group by t;
> ...
> OK
> 1977-03-15 12:34:22.345678 227306062 1 227306062
> 2.27306062345678E8
> {code}
> As it can be seen, timestamp value (1977-03-15 12:34:22.345678) is converted
> with fractional part ignored in sum, while preserved in avg. As a further
> result, sum()/count() is not equivalent to avg.
--
This message was sent by Atlassian JIRA
(v6.1.4#6159)
