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 |    66019
       9 |    65347
      11 |    62335
       8 |    58347
      12 |    55944
      13 |    49687
      19 |    46700
       7 |    46405
      18 |    46165
      20 |    45411
      14 |    45268
      17 |    45159
      16 |    43838
      15 |    43821
      21 |    42483
      22 |    37744
       6 |    32969
      23 |    32553
      24 |    26670
      25 |    21060
       5 |    19804
      26 |    15981
      27 |    11658
       4 |     9860
      28 |     8167
      29 |     5662
       3 |     4055
      30 |     3762
      31 |     2318
      32 |     1485
       2 |     1170
      33 |      846
      34 |      490
      35 |      270
       1 |      228
      36 |      142
      37 |       71
      38 |       33
      39 |       25
      40 |       16
      41 |        7
      43 |        3
      44 |        2
      45 |        1
      42 |        1
(46 rows)

COMMIT;
COMMIT