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 |    66266
       9 |    65121
      11 |    62134
       8 |    58358
      12 |    55717
      13 |    49819
      19 |    46593
       7 |    46456
      18 |    46293
      14 |    45243
      20 |    45134
      17 |    45024
      16 |    43909
      15 |    43792
      21 |    42336
      22 |    38010
      23 |    32754
       6 |    32665
      24 |    26847
      25 |    21169
       5 |    19702
      26 |    16016
      27 |    11849
       4 |     9867
      28 |     8190
      29 |     5715
       3 |     4036
      30 |     3719
      31 |     2349
      32 |     1542
       2 |     1177
      33 |      876
      34 |      490
      35 |      270
       1 |      231
      36 |      142
      37 |       80
      38 |       43
      39 |       25
      40 |        9
      42 |        6
      41 |        3
      44 |        2
      45 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT