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 |    65952
       9 |    65381
      11 |    62301
       8 |    58283
      12 |    55974
      13 |    49728
      19 |    46625
       7 |    46487
      18 |    46163
      20 |    45335
      14 |    45264
      17 |    45260
      15 |    43819
      16 |    43813
      21 |    42512
      22 |    37806
       6 |    32944
      23 |    32513
      24 |    26716
      25 |    20992
       5 |    19851
      26 |    16037
      27 |    11618
       4 |     9846
      28 |     8225
      29 |     5615
       3 |     4045
      30 |     3756
      31 |     2339
      32 |     1496
       2 |     1162
      33 |      832
      34 |      493
      35 |      273
       1 |      228
      36 |      138
      37 |       70
      38 |       36
      39 |       23
      40 |       17
      41 |        7
      44 |        2
      43 |        2
      42 |        2
      45 |        1
(46 rows)

COMMIT;
COMMIT