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%accounts%'
		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 |   500016
      10 |    66277
       9 |    65049
      11 |    62189
       8 |    58429
      12 |    55855
      13 |    49762
      19 |    46687
      18 |    46278
       7 |    46278
      20 |    45347
      14 |    45295
      17 |    45113
      16 |    43815
      15 |    43591
      21 |    42299
      22 |    37966
       6 |    32713
      23 |    32670
      24 |    26893
      25 |    21267
       5 |    19691
      26 |    16014
      27 |    11758
       4 |     9874
      28 |     8226
      29 |     5612
       3 |     3998
      30 |     3837
      31 |     2327
      32 |     1515
       2 |     1178
      33 |      864
      34 |      507
      35 |      291
       1 |      228
      36 |      127
      37 |       75
      38 |       37
      39 |       27
      40 |       12
      42 |        6
      41 |        5
      45 |        1
      44 |        1
(45 rows)

COMMIT;
COMMIT