text: set enable_global_stats = true;
  set current_schema = vector_engine;
  set enable_vector_engine=on;
  set enable_nestloop=off;
  explain (costs off) select
  	l_returnflag,
  	l_linestatus,
  	sum(l_quantity) as sum_qty,
  	sum(l_extendedprice) as sum_base_price,
  	sum(l_extendedprice * (1 - l_discount)) as sum_disc_price,
  	sum(l_extendedprice * (1 - l_discount) * (1 + l_tax)) as sum_charge,
  	avg(l_quantity) as avg_qty,
  	avg(l_extendedprice) as avg_price,
  	avg(l_discount) as avg_disc,
  	count(*) as count_order
  from
  	lineitem
  where
  	l_shipdate <= date '1998-12-01' - interval '3 day'
  group by
  	l_returnflag,
  	l_linestatus
  order by 
  	sum_qty;
  
  select
  	l_returnflag,
  	l_linestatus,
  	sum(l_quantity) as sum_qty,
  	sum(l_extendedprice) as sum_base_price,
  	sum(l_extendedprice * (1 - l_discount)) as sum_disc_price,
  	sum(l_extendedprice * (1 - l_discount) * (1 + l_tax)) as sum_charge,
  	avg(l_quantity) as avg_qty,
  	avg(l_extendedprice) as avg_price,
  	avg(l_discount) as avg_disc,
  	count(*) as count_order
  from
  	lineitem
  where
  	l_shipdate <= date '1998-12-01' - interval '3 day'
  group by
  	l_returnflag,
  	l_linestatus
  order by 
  	sum_qty;
  