mishmam3 commented on issue #8970:
URL: https://github.com/apache/druid/issues/8970#issuecomment-829615128


   Yes, it looks like only recent data is affected (most recent 10 minutes). 
One workaround is to use filtered aggregations for certain queries, but very 
strange that either using a virtual column or an expression in an aggregation 
doesn't return the correct results. We do rely on virtual columns for a bunch 
of queries though. 
   
   The results for virtual column aggregation queries seem to get updated every 
10 minutes. I was wondering if there is some background process running every 
10 minutes that updates something, seems unlikely though. 
   
   We tested this with caching disabled by setting `useCache` to false in the 
native query. 


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