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 |   500021
      10 |    66087
       9 |    65195
      11 |    62139
       8 |    58174
      12 |    55811
      13 |    49841
       7 |    46747
      19 |    46547
      18 |    46292
      14 |    45202
      20 |    45198
      17 |    45121
      16 |    43807
      15 |    43791
      21 |    42397
      22 |    38034
      23 |    32820
       6 |    32650
      24 |    26753
      25 |    21200
       5 |    19594
      26 |    15970
      27 |    11820
       4 |     9872
      28 |     8260
      29 |     5655
       3 |     4038
      30 |     3724
      31 |     2343
      32 |     1525
       2 |     1186
      33 |      867
      34 |      509
      35 |      259
       1 |      232
      36 |      150
      37 |       77
      38 |       49
      39 |       19
      40 |       12
      42 |        4
      41 |        4
      45 |        2
      44 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT