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A comment on Seldomly Used SQL: The Bool Aggregate Functions. Parent comment

Re:Seldomly Used SQL: The Bool Aggregate Functions by nickpeterson on Thursday May 05, 2016 @03:24PM (#11638995)
How about:

  CASE WHEN MIN(express_delivered) = 0 THEN 0 ELSE 1 END AS always_been_express_delivered
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