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%packages%'
		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 |   500020
      10 |    66071
       9 |    65313
      11 |    62162
       8 |    58345
      12 |    55803
      13 |    49939
      19 |    46920
       7 |    46572
      18 |    46233
      14 |    45436
      20 |    45112
      17 |    44846
      16 |    43802
      15 |    43679
      21 |    42386
      22 |    38054
       6 |    33021
      23 |    32536
      24 |    26711
      25 |    21152
       5 |    19579
      26 |    15966
      27 |    11575
       4 |    10011
      28 |     8196
      29 |     5624
       3 |     4021
      30 |     3714
      31 |     2372
      32 |     1492
       2 |     1191
      33 |      850
      34 |      480
      35 |      297
       1 |      223
      36 |      132
      37 |       74
      38 |       41
      39 |       25
      40 |        9
      41 |        7
      42 |        4
      44 |        2
      45 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT