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 |   500021
      10 |    66132
       9 |    65172
      11 |    61947
       8 |    58333
      12 |    56098
      13 |    49824
      19 |    46878
      18 |    46456
       7 |    46350
      14 |    45300
      20 |    45056
      17 |    44753
      15 |    43836
      16 |    43599
      21 |    42604
      22 |    37915
       6 |    32831
      23 |    32607
      24 |    26924
      25 |    21101
       5 |    19616
      26 |    16092
      27 |    11692
       4 |     9841
      28 |     8350
      29 |     5669
       3 |     4040
      30 |     3750
      31 |     2354
      32 |     1523
       2 |     1175
      33 |      849
      34 |      507
      35 |      296
       1 |      215
      36 |      132
      37 |       66
      38 |       45
      39 |       25
      40 |       12
      41 |        6
      42 |        3
      44 |        2
      43 |        2
      45 |        1
(46 rows)

COMMIT;
COMMIT