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 |    66182
       9 |    65225
      11 |    61962
       8 |    58473
      12 |    56065
      13 |    49770
      19 |    46865
       7 |    46457
      18 |    46449
      14 |    45310
      20 |    45148
      17 |    44888
      15 |    43888
      16 |    43670
      21 |    42511
      22 |    37816
       6 |    32968
      23 |    32501
      24 |    26822
      25 |    20980
       5 |    19733
      26 |    15959
      27 |    11625
       4 |     9881
      28 |     8304
      29 |     5582
       3 |     4069
      30 |     3739
      31 |     2316
      32 |     1508
       2 |     1184
      33 |      840
      34 |      493
      35 |      291
       1 |      216
      36 |      129
      37 |       67
      38 |       42
      39 |       25
      40 |       12
      41 |        6
      44 |        3
      42 |        3
      43 |        2
(45 rows)

COMMIT;
COMMIT