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 |    66334
       9 |    65341
      11 |    62018
       8 |    58275
      12 |    55656
      13 |    50078
       7 |    46532
      18 |    46500
      19 |    46428
      20 |    45386
      14 |    45256
      17 |    44887
      16 |    43976
      15 |    43701
      21 |    42307
      22 |    37957
       6 |    32927
      23 |    32575
      24 |    26695
      25 |    21204
       5 |    19696
      26 |    15833
      27 |    11725
       4 |     9998
      28 |     8170
      29 |     5601
       3 |     4006
      30 |     3770
      31 |     2312
      32 |     1467
       2 |     1198
      33 |      888
      34 |      482
      35 |      273
       1 |      233
      36 |      134
      37 |       73
      38 |       42
      39 |       22
      40 |       10
      41 |        8
      42 |        4
      44 |        2
      45 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT