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 '%unusual%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 |   500018
      10 |    66224
       9 |    65283
      11 |    62075
       8 |    58237
      12 |    55836
      13 |    49963
      18 |    46601
      19 |    46298
       7 |    46278
      20 |    45509
      14 |    45205
      17 |    44779
      16 |    44082
      15 |    43556
      21 |    42351
      22 |    37901
       6 |    32764
      23 |    32647
      24 |    26890
      25 |    21119
       5 |    19712
      26 |    16063
      27 |    11844
       4 |     9851
      28 |     8229
      29 |     5727
       3 |     4016
      30 |     3771
      31 |     2323
      32 |     1487
       2 |     1179
      33 |      879
      34 |      502
      35 |      275
       1 |      226
      36 |      139
      37 |       67
      38 |       42
      39 |       23
      40 |       15
      42 |        5
      41 |        5
      44 |        2
      45 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT