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 |    66111
       9 |    65275
      11 |    62345
       8 |    58505
      12 |    55598
      13 |    49956
      19 |    46714
      18 |    46444
       7 |    46383
      14 |    45409
      20 |    45164
      17 |    44982
      16 |    43991
      15 |    43530
      21 |    42297
      22 |    38090
       6 |    32939
      23 |    32343
      24 |    26700
      25 |    21162
       5 |    19708
      26 |    15993
      27 |    11705
       4 |     9927
      28 |     8207
      29 |     5628
       3 |     4024
      30 |     3674
      31 |     2304
      32 |     1474
       2 |     1205
      33 |      862
      34 |      503
      35 |      301
       1 |      233
      36 |      131
      37 |       69
      38 |       50
      39 |       16
      40 |       13
      42 |        4
      41 |        4
      45 |        2
      43 |        2
      44 |        1
(46 rows)

COMMIT;
COMMIT