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From "Zhong Yanghong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KYLIN-3359) Support sum(expression) if possible
Date Wed, 02 May 2018 10:20:00 GMT
Zhong Yanghong created KYLIN-3359:
-------------------------------------

             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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