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name time1 time2 time3
a 2007-1-2 2007-1-3 null
b 2007-2-2 2007-2-3 null
b 2007-3-2 null 2007-1-3
b 2007-4-2 null null
c 2007-5-2 2007-1-4 null
c 2007-6-2 2007-1-5 null
a 2007-7-2 2007-1-6 null
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name count(time1) count(time2) count(time3)
a 1 1 0
b 3 1 2
c 1 1 0
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sum(if(time1 between '2009-10-01' and '2019-10-01',1,0)) as `count(time1)`,
sum(if(time2 between '2009-10-01' and '2019-10-01',1,0)) as `count(time
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