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 '%special%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 |   500016
      10 |    66358
       9 |    64929
      11 |    62278
       8 |    58515
      12 |    55498
      13 |    49960
      19 |    46783
       7 |    46273
      18 |    46216
      14 |    45438
      20 |    45184
      17 |    44954
      16 |    43797
      15 |    43586
      21 |    42396
      22 |    38018
       6 |    32715
      23 |    32690
      24 |    26813
      25 |    21415
       5 |    19623
      26 |    15962
      27 |    11764
       4 |     9975
      28 |     8169
      29 |     5636
       3 |     3973
      30 |     3821
      31 |     2326
      32 |     1543
       2 |     1186
      33 |      866
      34 |      509
      35 |      275
       1 |      233
      36 |      141
      37 |       80
      38 |       34
      39 |       27
      41 |        9
      40 |        9
      42 |        4
      45 |        1
      44 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT