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 |    66279
       9 |    65365
      11 |    62075
       8 |    58383
      12 |    55705
      13 |    49903
      18 |    46522
      19 |    46458
       7 |    46406
      20 |    45365
      14 |    45361
      17 |    44893
      16 |    43995
      15 |    43664
      21 |    42333
      22 |    37900
       6 |    32848
      23 |    32507
      24 |    26796
      25 |    21144
       5 |    19813
      26 |    15850
      27 |    11749
       4 |     9965
      28 |     8145
      29 |     5670
       3 |     4020
      30 |     3742
      31 |     2289
      32 |     1474
       2 |     1196
      33 |      871
      34 |      491
      35 |      275
       1 |      233
      36 |      130
      37 |       78
      38 |       39
      39 |       24
      40 |       11
      41 |        6
      42 |        5
      44 |        2
      45 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT