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%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 |   500017
      10 |    65892
       9 |    65318
      11 |    62515
       8 |    58296
      12 |    55682
      13 |    49871
      19 |    46621
       7 |    46573
      18 |    46025
      14 |    45493
      20 |    45486
      17 |    45182
      16 |    43765
      15 |    43646
      21 |    42441
      22 |    37890
       6 |    33021
      23 |    32526
      24 |    26725
      25 |    21147
       5 |    19608
      26 |    15934
      27 |    11591
       4 |    10020
      28 |     8134
      29 |     5664
       3 |     3989
      30 |     3745
      31 |     2358
      32 |     1490
       2 |     1184
      33 |      858
      34 |      485
      35 |      262
       1 |      235
      36 |      145
      37 |       85
      38 |       29
      39 |       24
      40 |       15
      41 |        5
      42 |        3
      45 |        2
      43 |        2
      44 |        1
(46 rows)

COMMIT;
COMMIT