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%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 |   500019
      10 |    66346
       9 |    65188
      11 |    62080
       8 |    58499
      12 |    55899
      13 |    49634
      19 |    46766
       7 |    46455
      18 |    46237
      17 |    45270
      20 |    45150
      14 |    45129
      15 |    43980
      16 |    43875
      21 |    42367
      22 |    37735
       6 |    32872
      23 |    32586
      24 |    26773
      25 |    21030
       5 |    19851
      26 |    15901
      27 |    11794
       4 |     9831
      28 |     8180
      29 |     5611
       3 |     4100
      30 |     3680
      31 |     2325
      32 |     1528
       2 |     1175
      33 |      850
      34 |      490
      35 |      272
       1 |      228
      36 |      134
      37 |       71
      38 |       43
      39 |       21
      40 |       13
      42 |        4
      44 |        3
      41 |        3
      43 |        2
(45 rows)

COMMIT;
COMMIT