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 |    65970
       9 |    65272
      11 |    62343
       8 |    58227
      12 |    55976
      13 |    49731
      19 |    46676
       7 |    46279
      18 |    46146
      20 |    45408
      14 |    45249
      17 |    45041
      15 |    43780
      16 |    43763
      21 |    42535
      22 |    37854
       6 |    32843
      23 |    32633
      24 |    26811
      25 |    21165
       5 |    19687
      26 |    16097
      27 |    11744
       4 |     9820
      28 |     8202
      29 |     5727
       3 |     4022
      30 |     3804
      31 |     2347
      32 |     1492
       2 |     1163
      33 |      870
      34 |      498
      35 |      274
       1 |      227
      36 |      143
      37 |       73
      38 |       35
      39 |       25
      40 |       16
      41 |        7
      43 |        3
      45 |        2
      44 |        1
      42 |        1
(46 rows)

COMMIT;
COMMIT