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 |    66039
       9 |    65250
      11 |    62306
       8 |    58192
      12 |    55864
      13 |    49840
      19 |    46614
      18 |    46517
       7 |    46338
      20 |    45252
      14 |    45184
      17 |    44981
      16 |    43870
      15 |    43680
      21 |    42294
      22 |    37931
       6 |    32868
      23 |    32659
      24 |    26885
      25 |    21137
       5 |    19678
      26 |    16129
      27 |    11768
       4 |     9758
      28 |     8308
      29 |     5675
       3 |     4044
      30 |     3689
      31 |     2370
      32 |     1493
       2 |     1180
      33 |      853
      34 |      512
      35 |      297
       1 |      223
      36 |      142
      37 |       65
      38 |       43
      39 |       24
      40 |       11
      41 |        7
      42 |        3
      45 |        2
      43 |        2
      44 |        1
(46 rows)

COMMIT;
COMMIT