sql - Changing to join instead of sub query - 


    select          a.id, min(s.datetime),          max(s.datetime),          min(s.id)    asdt    inner join alm al on id = al.id,    sta s             a.id not in (select id alm distance <= a.radius )         group a.id

this query runs slow due subquery when checking distance against a.radius upper table.


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