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%requests%'
		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 |    66215
       9 |    65063
      11 |    62043
       8 |    58449
      12 |    55915
      13 |    49772
      19 |    46634
      18 |    46330
       7 |    46286
      14 |    45215
      20 |    45202
      17 |    44925
      15 |    43910
      16 |    43870
      21 |    42266
      22 |    38208
       6 |    32855
      23 |    32713
      24 |    26793
      25 |    21048
       5 |    19664
      26 |    16169
      27 |    11679
       4 |     9791
      28 |     8385
      29 |     5585
       3 |     4021
      30 |     3771
      31 |     2338
      32 |     1520
       2 |     1170
      33 |      867
      34 |      488
      35 |      311
       1 |      226
      36 |      125
      37 |       70
      38 |       34
      39 |       25
      40 |       16
      41 |        5
      42 |        4
      45 |        1
      44 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT