Zhong Yanghong created KYLIN-3359:
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Summary: Support sum(expression) if possible
Key: KYLIN-3359
URL: https://issues.apache.org/jira/browse/KYLIN-3359
Project: Kylin
Issue Type: Sub-task
Reporter: Zhong Yanghong
Assignee: Zhong Yanghong
The expression can be as follows:
# a ~1~*col ~1~ + a ~2~*col ~2~ + ... + a ~n~*col ~n~ + b, if sum(col
~1~),sum(col ~2~),...sum(col ~n~) are defined
# case when {{filter}} ~1~ then expr ~1~
when {{filter}} ~2~ then expr ~2~
...
else expr ~N~
end, if {{filter}} ~1~,{{filter}} ~2~, ... {{filter}} ~N-1~, and expr ~1~,expr
~2~,...expr ~N~ are supported
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