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%accounts%'
		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 |   500018
      10 |    65913
       9 |    65378
      11 |    62470
       8 |    58331
      12 |    55786
      13 |    49787
      19 |    46631
       7 |    46473
      18 |    46186
      20 |    45451
      14 |    45401
      17 |    45065
      16 |    43883
      15 |    43700
      21 |    42424
      22 |    37917
       6 |    32925
      23 |    32381
      24 |    26794
      25 |    20989
       5 |    19795
      26 |    16028
      27 |    11664
       4 |     9885
      28 |     8137
      29 |     5663
       3 |     4034
      30 |     3758
      31 |     2314
      32 |     1479
       2 |     1177
      33 |      872
      34 |      487
      35 |      266
       1 |      232
      36 |      144
      37 |       75
      38 |       30
      39 |       29
      40 |       15
      41 |        6
      45 |        2
      43 |        2
      42 |        2
      44 |        1
(46 rows)

COMMIT;
COMMIT