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 |   500024
      10 |    66102
       9 |    65175
      11 |    62219
       8 |    58187
      12 |    55670
      13 |    50080
      19 |    46715
       7 |    46578
      18 |    46341
      20 |    45233
      14 |    45168
      17 |    44947
      15 |    43764
      16 |    43731
      21 |    42363
      22 |    38100
       6 |    32773
      23 |    32660
      24 |    26796
      25 |    21257
       5 |    19528
      26 |    16120
      27 |    11688
       4 |     9896
      28 |     8235
      29 |     5710
       3 |     3975
      30 |     3710
      31 |     2358
      32 |     1482
       2 |     1212
      33 |      858
      34 |      509
      35 |      295
       1 |      231
      36 |      143
      37 |       77
      38 |       46
      39 |       19
      40 |       11
      41 |        6
      42 |        3
      43 |        2
      46 |        1
      45 |        1
      44 |        1
(47 rows)

COMMIT;
COMMIT