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 |    66268
       9 |    65107
      11 |    62076
       8 |    58305
      12 |    55957
      13 |    49684
      19 |    46700
       7 |    46362
      18 |    46303
      17 |    45162
      14 |    45100
      20 |    45064
      15 |    43918
      16 |    43832
      21 |    42353
      22 |    37985
       6 |    32810
      23 |    32670
      24 |    26874
      25 |    21112
       5 |    19748
      26 |    16092
      27 |    11795
       4 |     9769
      28 |     8295
      29 |     5636
       3 |     4070
      30 |     3688
      31 |     2396
      32 |     1539
       2 |     1153
      33 |      866
      34 |      477
      35 |      286
       1 |      228
      36 |      140
      37 |       72
      38 |       41
      39 |       22
      40 |       13
      42 |        5
      41 |        4
      44 |        3
      43 |        1
(45 rows)

COMMIT;
COMMIT