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 |    66142
       9 |    65126
      11 |    62033
       8 |    58355
      12 |    56115
      13 |    49680
      19 |    46793
      18 |    46364
       7 |    46351
      14 |    45361
      20 |    45171
      17 |    44906
      15 |    43814
      16 |    43568
      21 |    42552
      22 |    37962
       6 |    32810
      23 |    32586
      24 |    26960
      25 |    21090
       5 |    19658
      26 |    16043
      27 |    11713
       4 |     9809
      28 |     8382
      29 |     5634
       3 |     4038
      30 |     3772
      31 |     2335
      32 |     1519
       2 |     1172
      33 |      857
      34 |      502
      35 |      294
       1 |      216
      36 |      132
      37 |       70
      38 |       43
      39 |       25
      40 |       12
      41 |        6
      44 |        3
      42 |        3
      43 |        2
(45 rows)

COMMIT;
COMMIT