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 |    65927
       9 |    65303
      11 |    62521
       8 |    58343
      12 |    55656
      13 |    49883
      19 |    46725
       7 |    46518
      18 |    46039
      14 |    45528
      20 |    45390
      17 |    45181
      16 |    43733
      15 |    43606
      21 |    42424
      22 |    37880
       6 |    33022
      23 |    32541
      24 |    26696
      25 |    21191
       5 |    19646
      26 |    15932
      27 |    11608
       4 |     9990
      28 |     8135
      29 |     5615
       3 |     3986
      30 |     3766
      31 |     2368
      32 |     1476
       2 |     1188
      33 |      865
      34 |      490
      35 |      262
       1 |      237
      36 |      145
      37 |       84
      38 |       30
      39 |       25
      40 |       15
      41 |        5
      42 |        3
      45 |        2
      43 |        2
      44 |        1
(46 rows)

COMMIT;
COMMIT