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 |    66365
       9 |    65045
      11 |    62047
       8 |    58370
      12 |    55935
      13 |    49655
      19 |    46706
       7 |    46351
      18 |    46293
      17 |    45184
      14 |    45151
      20 |    45053
      15 |    43911
      16 |    43791
      21 |    42406
      22 |    37928
       6 |    32780
      23 |    32710
      24 |    26862
      25 |    21120
       5 |    19743
      26 |    16042
      27 |    11830
       4 |     9766
      28 |     8288
      29 |     5642
       3 |     4070
      30 |     3697
      31 |     2394
      32 |     1532
       2 |     1157
      33 |      858
      34 |      493
      35 |      275
       1 |      227
      36 |      146
      37 |       68
      38 |       45
      39 |       19
      40 |       14
      42 |        4
      44 |        3
      41 |        3
      43 |        2
(45 rows)

COMMIT;
COMMIT