Hello all,
I found that kylin not support count if/cast when sql which mysql supported, 
like this:
select count(if(A='a1',true,null)) as a1, count(if(A='a2',true,null)) as a2 
from table
select count(case when A='a1' then true else null end) a1,  count(case when 
A='a2' then true else null end) a2 from table
Some of our users use "union" replace this function which lead to a very long 
sql. So I want to ask, if kylin will support this sql in the near future?

2017-12-04


skyyws 

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