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https://issues.apache.org/jira/browse/KYLIN-3360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16473383#comment-16473383
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Zhong Yanghong edited comment on KYLIN-3360 at 5/13/18 6:11 AM:
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Here, for simplification, the column can only be from root fact tables.
Otherwise, the result is the same as count().
was (Author: yaho):
Here, for simplification, the column can only be from root fact tables.
Otherwise, the result is the same as count(*).
> Support count(column)
> ---------------------
>
> Key: KYLIN-3360
> URL: https://issues.apache.org/jira/browse/KYLIN-3360
> Project: Kylin
> Issue Type: Sub-task
> Reporter: Zhong Yanghong
> Assignee: Zhong Yanghong
> Priority: Major
>
> If the value of the column is null, the related row should not be counted.
> count(column) can be explained as sum(case when column is not null then 1
> else 0), which can be will be supported by [KYLIN-3359]
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