Zhong Yanghong created KYLIN-3364:
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Summary: 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
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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