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#51'
	and p_container = 'LG CASE'
	and l_quantity < (
		select
			0.2 * avg(l_quantity)
		from
			lineitem
		where
			l_partkey = p_partkey
	);
                                                                                               QUERY PLAN                                                                                               
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Aggregate  (cost=347213.44..347213.45 rows=1 width=4) (actual time=716.327..716.327 rows=1 loops=1)
   Buffers: shared hit=60933 read=23053 dirtied=224 written=43
   ->  Nested Loop  (cost=130.19..347164.16 rows=19711 width=4) (actual time=0.663..715.385 rows=5484 loops=1)
         Buffers: shared hit=60933 read=23053 dirtied=224 written=43
         ->  Index Only Scan using part_p_container_p_brand_p_partkey_idx on part  (cost=0.43..7717.08 rows=1954 width=4) (actual time=0.144..16.255 rows=1995 loops=1)
               Index Cond: ((p_container = 'LG CASE'::bpchar) AND (p_brand = 'Brand#51'::bpchar))
               Heap Fetches: 1995
               Buffers: shared hit=1745 read=211
         ->  Index Scan using lineitem_l_partkey_l_quantity_l_shipmode_idx on lineitem  (cost=129.76..173.62 rows=10 width=12) (actual time=0.005..0.007 rows=3 loops=1995)
               Index Cond: ((l_partkey = part.p_partkey) AND (l_quantity < (SubPlan 1)))
               Buffers: shared hit=13504
               SubPlan 1
                 ->  Aggregate  (cost=129.19..129.20 rows=1 width=4) (actual time=0.340..0.341 rows=1 loops=1995)
                       Buffers: shared hit=45684 read=22842 dirtied=224 written=43
                       ->  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=0.038..0.333 rows=30 loops=1995)
                             Index Cond: (l_partkey = part.p_partkey)
                             Heap Fetches: 60261
                             Buffers: shared hit=45684 read=22842 dirtied=224 written=43
               SubPlan 1
                 ->  Aggregate  (cost=129.19..129.20 rows=1 width=4) (actual time=0.340..0.341 rows=1 loops=1995)
                       Buffers: shared hit=45684 read=22842 dirtied=224 written=43
                       ->  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=0.038..0.333 rows=30 loops=1995)
                             Index Cond: (l_partkey = part.p_partkey)
                             Heap Fetches: 60261
                             Buffers: shared hit=45684 read=22842 dirtied=224 written=43
 Planning time: 3.352 ms
 Execution time: 716.531 ms
(27 rows)

COMMIT;
COMMIT