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 |   500019
      10 |    66326
       9 |    65100
      11 |    62080
       8 |    58365
      12 |    55990
      13 |    49556
      19 |    46700
       7 |    46358
      18 |    46203
      17 |    45245
      14 |    45166
      20 |    45124
      15 |    43898
      16 |    43802
      21 |    42426
      22 |    37863
       6 |    32730
      23 |    32714
      24 |    26878
      25 |    21135
       5 |    19748
      26 |    16006
      27 |    11883
       4 |     9782
      28 |     8250
      29 |     5660
       3 |     4060
      30 |     3707
      31 |     2363
      32 |     1527
       2 |     1165
      33 |      872
      34 |      494
      35 |      278
       1 |      227
      36 |      139
      37 |       71
      38 |       44
      39 |       21
      40 |       13
      42 |        4
      44 |        3
      41 |        3
      43 |        2
(45 rows)

COMMIT;
COMMIT