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 |   500018
      10 |    65965
       9 |    65344
      11 |    62358
       8 |    58404
      12 |    55928
      13 |    49729
      19 |    46624
       7 |    46403
      18 |    46196
      20 |    45468
      14 |    45332
      17 |    45126
      16 |    43830
      15 |    43746
      21 |    42415
      22 |    37832
       6 |    32967
      23 |    32502
      24 |    26744
      25 |    21016
       5 |    19774
      26 |    15984
      27 |    11677
       4 |     9875
      28 |     8135
      29 |     5681
       3 |     4050
      30 |     3762
      31 |     2300
      32 |     1495
       2 |     1179
      33 |      851
      34 |      492
      35 |      269
       1 |      227
      36 |      143
      37 |       71
      38 |       34
      39 |       24
      40 |       16
      41 |        7
      45 |        2
      43 |        2
      42 |        2
      44 |        1
(46 rows)

COMMIT;
COMMIT