Yifei Wu created KYLIN-3392: ------------------------------- Summary: 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
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 (v7.6.3#76005)