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 |    66085
       9 |    65283
      11 |    62193
       8 |    58481
      12 |    55753
      13 |    49902
      19 |    46932
       7 |    46474
      18 |    46370
      14 |    45471
      20 |    45005
      17 |    44780
      16 |    43791
      15 |    43687
      21 |    42478
      22 |    38067
       6 |    32912
      23 |    32409
      24 |    26790
      25 |    21090
       5 |    19688
      26 |    15970
      27 |    11595
       4 |     9991
      28 |     8232
      29 |     5636
       3 |     4027
      30 |     3730
      31 |     2315
      32 |     1494
       2 |     1194
      33 |      860
      34 |      483
      35 |      293
       1 |      221
      36 |      131
      37 |       72
      38 |       45
      39 |       24
      40 |       11
      42 |        5
      41 |        5
      44 |        2
      45 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT