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 |    66195
       9 |    65148
      11 |    62123
       8 |    58220
      12 |    55793
      13 |    49804
       7 |    46656
      19 |    46572
      18 |    46313
      14 |    45254
      20 |    45191
      17 |    45002
      15 |    43815
      16 |    43814
      21 |    42332
      22 |    38083
      23 |    32840
       6 |    32683
      24 |    26814
      25 |    21169
       5 |    19590
      26 |    15897
      27 |    11840
       4 |     9899
      28 |     8268
      29 |     5667
       3 |     4028
      30 |     3716
      31 |     2355
      32 |     1538
       2 |     1184
      33 |      868
      34 |      499
      35 |      263
       1 |      231
      36 |      149
      37 |       76
      38 |       49
      39 |       20
      40 |       11
      42 |        5
      41 |        3
      44 |        2
      45 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT