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 |    66317
       9 |    65072
      11 |    62138
       8 |    58650
      12 |    55789
      13 |    49860
      19 |    46707
       7 |    46394
      18 |    46278
      20 |    45379
      14 |    45308
      17 |    45210
      16 |    43801
      15 |    43660
      21 |    42174
      22 |    37939
       6 |    32815
      23 |    32566
      24 |    26739
      25 |    21186
       5 |    19770
      26 |    15899
      27 |    11692
       4 |     9955
      28 |     8117
      29 |     5596
       3 |     4026
      30 |     3805
      31 |     2281
      32 |     1519
       2 |     1197
      33 |      836
      34 |      513
      35 |      279
       1 |      228
      36 |      129
      37 |       72
      38 |       38
      39 |       25
      40 |       12
      41 |        6
      42 |        4
      45 |        1
      44 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT