text: 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;
  
  SELECT last_statement_duration_us / 1000000.0 last_statement_duration_seconds
  FROM current_session;