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