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 |    66161
       9 |    65305
      11 |    62278
       8 |    58528
      12 |    55543
      13 |    49947
      19 |    46692
      18 |    46436
       7 |    46353
      14 |    45443
      20 |    45155
      17 |    45008
      16 |    43898
      15 |    43604
      21 |    42338
      22 |    38057
       6 |    32925
      23 |    32366
      24 |    26736
      25 |    21187
       5 |    19703
      26 |    15967
      27 |    11694
       4 |     9965
      28 |     8192
      29 |     5623
       3 |     4012
      30 |     3686
      31 |     2306
      32 |     1476
       2 |     1204
      33 |      853
      34 |      505
      35 |      302
       1 |      236
      36 |      132
      37 |       71
      38 |       49
      39 |       17
      40 |       12
      42 |        5
      41 |        3
      45 |        2
      43 |        2
      44 |        1
(46 rows)

COMMIT;
COMMIT