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 |    66072
       9 |    65218
      11 |    62016
       8 |    58195
      12 |    56060
      13 |    49860
      19 |    46672
      18 |    46469
       7 |    46460
      20 |    45267
      14 |    45196
      17 |    44857
      15 |    43945
      16 |    43537
      21 |    42443
      22 |    38021
       6 |    32793
      23 |    32571
      24 |    27006
      25 |    21065
       5 |    19716
      26 |    16037
      27 |    11732
       4 |     9780
      28 |     8340
      29 |     5639
       3 |     4041
      30 |     3775
      31 |     2343
      32 |     1525
       2 |     1161
      33 |      871
      34 |      486
      35 |      298
       1 |      218
      36 |      130
      37 |       71
      38 |       42
      39 |       25
      40 |       11
      41 |        8
      42 |        4
      44 |        3
      43 |        1
(45 rows)

COMMIT;
COMMIT