BEGIN;
BEGIN
select
	c_count,
	count(*) as custdist
from
	(
		select
			c_custkey,
			count(o_orderkey)
		from
			customer left outer join orders on
				c_custkey = o_custkey
				and o_comment not like '%unusual%requests%'
		group by
			c_custkey
	) as c_orders (c_custkey, c_count)
group by
	c_count
order by
	custdist desc,
	c_count desc;
 c_count | custdist 
---------+----------
       0 |   500018
      10 |    66279
       9 |    65326
      11 |    62031
       8 |    58395
      12 |    55849
      13 |    49931
      18 |    46669
       7 |    46381
      19 |    46308
      20 |    45515
      14 |    45198
      17 |    44805
      16 |    44207
      15 |    43589
      21 |    42303
      22 |    37780
       6 |    32916
      23 |    32597
      24 |    26741
      25 |    21007
       5 |    19797
      26 |    15965
      27 |    11752
       4 |     9906
      28 |     8167
      29 |     5672
       3 |     4054
      30 |     3736
      31 |     2300
      32 |     1469
       2 |     1189
      33 |      865
      34 |      491
      35 |      272
       1 |      226
      36 |      135
      37 |       67
      38 |       43
      39 |       20
      40 |       15
      42 |        5
      41 |        5
      44 |        2
      45 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT