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Group By "logarithmic" Count In SQL

05.14.2005
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select dist, count(dist) 
from (select round(pow(10,ceil(log(10,distance+0.0001)))) 
           as dist from cust\_with\_dist) as foo
group by dist

This gives
 dist | count
------+-------
    0 |   142
   10 |   235
  100 |   111
 1000 |     7