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 |    66314
       9 |    65041
      11 |    62287
       8 |    58597
      12 |    55592
      13 |    49901
      19 |    46849
       7 |    46467
      18 |    46222
      14 |    45417
      20 |    45174
      17 |    45055
      16 |    43961
      15 |    43565
      21 |    42292
      22 |    37973
       6 |    32780
      23 |    32556
      24 |    26692
      25 |    21232
       5 |    19763
      26 |    15920
      27 |    11697
       4 |     9997
      28 |     8085
      29 |     5615
       3 |     4004
      30 |     3772
      31 |     2281
      32 |     1527
       2 |     1198
      33 |      845
      34 |      515
      35 |      265
       1 |      232
      36 |      139
      37 |       77
      38 |       34
      39 |       25
      40 |       13
      41 |        6
      42 |        4
      45 |        1
      44 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT