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 |    66223
       9 |    65322
      11 |    62018
       8 |    58043
      12 |    55984
      13 |    49866
      18 |    46580
      19 |    46379
       7 |    46342
      20 |    45448
      14 |    45154
      17 |    44917
      16 |    43986
      15 |    43657
      21 |    42212
      22 |    37959
       6 |    32837
      23 |    32619
      24 |    26949
      25 |    21122
       5 |    19748
      26 |    16110
      27 |    11754
       4 |     9798
      28 |     8297
      29 |     5683
       3 |     4037
      30 |     3759
      31 |     2394
      32 |     1446
       2 |     1164
      33 |      890
      34 |      478
      35 |      276
       1 |      224
      36 |      142
      37 |       76
      38 |       36
      39 |       23
      40 |       14
      41 |        7
      42 |        5
      44 |        2
      45 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT