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Zhong Yanghong commented on KYLIN-3392: --------------------------------------- Hi [~wangrupeng], I applied the patch to 3.1.0 and it works well. Could you try it? > Support NULL value in Sum, Max, Min Aggregation > ----------------------------------------------- > > Key: KYLIN-3392 > URL: https://issues.apache.org/jira/browse/KYLIN-3392 > Project: Kylin > Issue Type: Bug > Reporter: Yifei Wu > Assignee: Yifei Wu > Priority: Major > Fix For: Future > > Attachments: KYLIN-3392-2.png, KYLIN-3392.png, kylin-3.0.0-alpha2.png > > > It is treated as 0 when confronted with NULL value in KYLIN's basic aggregate > measure (like sum, max, min). However, to distinguish the NULL value with 0 > is very necessary. > It should be like this > *sum(null, null) = null* > *sum(null, 1) = 1* > *max(null, null) = null* > *max(null, -1) = -1* > *min(null, -1)= -1* > in accordance with Hive and SparkSQL -- This message was sent by Atlassian Jira (v8.3.4#803005)