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 |    66214
       9 |    65120
      11 |    62197
       8 |    58322
      12 |    55809
      13 |    49857
      19 |    46692
      18 |    46341
       7 |    46299
      20 |    45380
      14 |    45244
      17 |    44985
      16 |    43870
      15 |    43638
      21 |    42196
      22 |    38005
       6 |    32758
      23 |    32664
      24 |    26897
      25 |    21296
       5 |    19725
      26 |    16000
      27 |    11756
       4 |     9850
      28 |     8216
      29 |     5634
       3 |     4000
      30 |     3782
      31 |     2371
      32 |     1529
       2 |     1170
      33 |      859
      34 |      495
      35 |      292
       1 |      228
      36 |      127
      37 |       78
      38 |       35
      39 |       26
      40 |       13
      41 |        7
      42 |        5
      45 |        1
      44 |        1
(45 rows)

COMMIT;
COMMIT