blackfox1983 commented on issue #5270:
URL: 
https://github.com/apache/incubator-doris/issues/5270#issuecomment-764199935


   Great features。
   
   There is another scenario. For example, when using bitmap to calculate UV, 
it is only cumulative at present. For example, if 100 people have paid the 
order, UV should be equal to 100. But if 10 people cancel the order, UV should 
be equal to 90. In this case, bitmap needs to support the reset operation of a 
bit. This kind of scenario can be considered later to design.
   
   


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