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 |    66238
       9 |    65142
      11 |    62132
       8 |    58385
      12 |    55873
      13 |    49717
      19 |    46685
       7 |    46390
      18 |    46194
      20 |    45211
      14 |    45201
      17 |    45167
      16 |    43840
      15 |    43825
      21 |    42287
      22 |    37942
      23 |    32705
       6 |    32684
      24 |    26910
      25 |    21059
       5 |    19730
      26 |    16076
      27 |    11870
       4 |     9805
      28 |     8223
      29 |     5689
       3 |     4055
      30 |     3722
      31 |     2334
      32 |     1542
       2 |     1174
      33 |      861
      34 |      512
      35 |      269
       1 |      227
      36 |      142
      37 |       72
      38 |       45
      39 |       21
      40 |       13
      42 |        5
      41 |        3
      44 |        2
      45 |        1
      43 |        1
(46 rows)

COMMIT;
COMMIT