BEGIN;
BEGIN
EXPLAIN (ANALYZE, BUFFERS)
select
	sum(l_extendedprice) / 7.0 as avg_yearly
from
	lineitem,
	part
where
	p_partkey = l_partkey
	and p_brand = 'Brand#12'
	and p_container = 'WRAP CASE'
	and l_quantity < (
		select
			0.2 * avg(l_quantity)
		from
			lineitem
		where
			l_partkey = p_partkey
	);
                                                                                               QUERY PLAN                                                                                               
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Aggregate  (cost=367772.63..367772.65 rows=1 width=4) (actual time=736.942..736.942 rows=1 loops=1)
   Buffers: shared hit=46522 read=35480 dirtied=222
   ->  Nested Loop  (cost=130.19..367720.22 rows=20964 width=4) (actual time=0.851..736.027 rows=5238 loops=1)
         Buffers: shared hit=46522 read=35480 dirtied=222
         ->  Index Only Scan using part_p_container_p_brand_p_partkey_idx on part  (cost=0.43..8166.33 rows=2070 width=4) (actual time=0.122..27.898 rows=1945 loops=1)
               Index Cond: ((p_container = 'WRAP CASE'::bpchar) AND (p_brand = 'Brand#12'::bpchar))
               Heap Fetches: 1945
               Buffers: shared hit=291 read=1631
         ->  Index Scan using lineitem_l_partkey_l_quantity_l_shipmode_idx on lineitem  (cost=129.76..173.60 rows=10 width=12) (actual time=0.005..0.007 rows=3 loops=1945)
               Index Cond: ((l_partkey = part.p_partkey) AND (l_quantity < (SubPlan 1)))
               Buffers: shared hit=13059
               SubPlan 1
                 ->  Aggregate  (cost=129.19..129.20 rows=1 width=4) (actual time=0.354..0.354 rows=1 loops=1945)
                       Buffers: shared hit=33172 read=33849 dirtied=222
                       ->  Index Only Scan using lineitem_l_partkey_l_quantity_l_shipmode_idx on lineitem lineitem_1  (cost=0.56..129.11 rows=31 width=4) (actual time=0.034..0.345 rows=30 loops=1945)
                             Index Cond: (l_partkey = part.p_partkey)
                             Heap Fetches: 58979
                             Buffers: shared hit=33172 read=33849 dirtied=222
               SubPlan 1
                 ->  Aggregate  (cost=129.19..129.20 rows=1 width=4) (actual time=0.354..0.354 rows=1 loops=1945)
                       Buffers: shared hit=33172 read=33849 dirtied=222
                       ->  Index Only Scan using lineitem_l_partkey_l_quantity_l_shipmode_idx on lineitem lineitem_1  (cost=0.56..129.11 rows=31 width=4) (actual time=0.034..0.345 rows=30 loops=1945)
                             Index Cond: (l_partkey = part.p_partkey)
                             Heap Fetches: 58979
                             Buffers: shared hit=33172 read=33849 dirtied=222
 Planning time: 2.836 ms
 Execution time: 737.133 ms
(27 rows)

COMMIT;
COMMIT