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 |   500023
      10 |    66076
       9 |    65004
      11 |    62270
       8 |    58393
      12 |    55592
      13 |    50064
       7 |    46521
      19 |    46435
      18 |    46248
      20 |    45382
      14 |    45251
      17 |    44967
      15 |    43803
      16 |    43796
      21 |    42263
      22 |    38417
       6 |    32826
      23 |    32625
      24 |    26756
      25 |    21329
       5 |    19501
      26 |    15901
      27 |    11788
       4 |     9898
      28 |     8190
      29 |     5725
       3 |     4002
      30 |     3721
      31 |     2333
      32 |     1522
       2 |     1186
      33 |      870
      34 |      505
      35 |      288
       1 |      233
      36 |      134
      37 |       73
      38 |       40
      39 |       25
      40 |       10
      41 |        9
      42 |        3
      46 |        1
      45 |        1
(45 rows)

COMMIT;
COMMIT