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 |    65919
       9 |    65317
      11 |    62318
       8 |    58126
      12 |    56007
      13 |    49715
      19 |    46672
       7 |    46367
      18 |    46119
      20 |    45354
      14 |    45260
      17 |    45110
      16 |    43822
      15 |    43727
      21 |    42516
      22 |    37906
       6 |    32822
      23 |    32622
      24 |    26876
      25 |    21075
       5 |    19763
      26 |    16127
      27 |    11738
       4 |     9778
      28 |     8265
      29 |     5659
       3 |     4023
      30 |     3793
      31 |     2363
      32 |     1520
       2 |     1150
      33 |      845
      34 |      499
      35 |      280
       1 |      227
      36 |      138
      37 |       73
      38 |       36
      39 |       23
      40 |       16
      41 |        9
      44 |        2
      43 |        2
      42 |        2
      45 |        1
(46 rows)

COMMIT;
COMMIT