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%accounts%'
		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 |   500022
      10 |    66209
       9 |    65166
      11 |    62279
       8 |    58396
      12 |    55514
      13 |    49979
      19 |    46683
      18 |    46364
       7 |    46254
      14 |    45431
      20 |    45202
      17 |    44914
      16 |    43815
      15 |    43609
      21 |    42358
      22 |    38127
       6 |    32799
      23 |    32494
      24 |    26829
      25 |    21332
       5 |    19585
      26 |    16055
      27 |    11774
       4 |     9927
      28 |     8251
      29 |     5677
       3 |     3976
      30 |     3737
      31 |     2334
      32 |     1503
       2 |     1195
      33 |      861
      34 |      508
      35 |      310
       1 |      234
      36 |      132
      37 |       73
      38 |       48
      39 |       18
      40 |       11
      42 |        5
      41 |        5
      45 |        2
      43 |        2
      44 |        1
(46 rows)

COMMIT;
COMMIT