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 '%special%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 |   500019
      10 |    66333
       9 |    65178
      11 |    62055
       8 |    58371
      12 |    55917
      13 |    49722
      19 |    46685
       7 |    46531
      18 |    46392
      17 |    45263
      20 |    45078
      14 |    45074
      15 |    43981
      16 |    43845
      21 |    42248
      22 |    37907
       6 |    32920
      23 |    32546
      24 |    26806
      25 |    20989
       5 |    19881
      26 |    16005
      27 |    11672
       4 |     9807
      28 |     8240
      29 |     5615
       3 |     4103
      30 |     3644
      31 |     2362
      32 |     1521
       2 |     1164
      33 |      845
      34 |      469
      35 |      284
       1 |      230
      36 |      139
      37 |       73
      38 |       38
      39 |       23
      40 |       12
      42 |        5
      41 |        4
      44 |        3
      43 |        1
(45 rows)

COMMIT;
COMMIT