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Posted to issues@kylin.apache.org by "liyang (JIRA)" <ji...@apache.org> on 2018/06/10 01:12:00 UTC

[jira] [Commented] (KYLIN-3364) Make the behavior of BigDecimalSumAggregator consistent with hive

    [ https://issues.apache.org/jira/browse/KYLIN-3364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16507223#comment-16507223 ] 

liyang commented on KYLIN-3364:
-------------------------------

This is fine, given we are aware that all aggregators must have consistent behavior in the end.

> Make the behavior of BigDecimalSumAggregator consistent with hive
> -----------------------------------------------------------------
>
>                 Key: KYLIN-3364
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3364
>             Project: Kylin
>          Issue Type: Sub-task
>            Reporter: Zhong Yanghong
>            Assignee: Zhong Yanghong
>            Priority: Major
>             Fix For: v2.4.0
>
>         Attachments: KYLIN-3364.patch
>
>
> When aggregating on a sequence of BigDecimal values, if all values are null, the result should be null. Otherwise, null should be regarded as 0.



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