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 '%express%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 |   500017
      10 |    65905
       9 |    65311
      11 |    62474
       8 |    58284
      12 |    55702
      13 |    49901
       7 |    46616
      19 |    46611
      18 |    46117
      14 |    45464
      20 |    45380
      17 |    45136
      16 |    43729
      15 |    43670
      21 |    42555
      22 |    37886
       6 |    32992
      23 |    32567
      24 |    26705
      25 |    21107
       5 |    19605
      26 |    15914
      27 |    11612
       4 |    10032
      28 |     8155
      29 |     5660
       3 |     3979
      30 |     3711
      31 |     2350
      32 |     1511
       2 |     1186
      33 |      861
      34 |      478
      35 |      269
       1 |      237
      36 |      143
      37 |       87
      38 |       32
      39 |       22
      40 |       14
      41 |        5
      42 |        3
      45 |        2
      43 |        2
      44 |        1
(46 rows)

COMMIT;
COMMIT