load 'auto_explain';
LOAD
set auto_explain.log_min_duration to 0;
SET
set auto_explain.log_analyze to on;
SET
set auto_explain.log_wal to on;
SET
set auto_explain.log_timing to on;
SET
set auto_explain.log_level to notice;
SET
BEGIN;
BEGIN
select
	l_shipmode,
	sum(case
		when o_orderpriority = '1-URGENT'
			or o_orderpriority = '2-HIGH'
			then 1
		else 0
	end) as high_line_count,
	sum(case
		when o_orderpriority <> '1-URGENT'
			and o_orderpriority <> '2-HIGH'
			then 1
		else 0
	end) as low_line_count
from
	orders,
	lineitem
where
	o_orderkey = l_orderkey
	and l_shipmode in ('AIR', 'SHIP')
	and l_commitdate < l_receiptdate
	and l_shipdate < l_commitdate
	and l_receiptdate >= date '1996-01-01'
	and l_receiptdate < date '1996-01-01' + interval '1 year'
group by
	l_shipmode
order by
	l_shipmode;
NOTICE:  duration: 21098.217 ms  plan:
Query Text: select
	l_shipmode,
	sum(case
		when o_orderpriority = '1-URGENT'
			or o_orderpriority = '2-HIGH'
			then 1
		else 0
	end) as high_line_count,
	sum(case
		when o_orderpriority <> '1-URGENT'
			and o_orderpriority <> '2-HIGH'
			then 1
		else 0
	end) as low_line_count
from
	orders,
	lineitem
where
	o_orderkey = l_orderkey
	and l_shipmode in ('AIR', 'SHIP')
	and l_commitdate < l_receiptdate
	and l_shipdate < l_commitdate
	and l_receiptdate >= date '1996-01-01'
	and l_receiptdate < date '1996-01-01' + interval '1 year'
group by
	l_shipmode
order by
	l_shipmode;
Finalize GroupAggregate  (cost=2223642.12..2226046.62 rows=7 width=27) (actual time=20673.616..21098.198 rows=2 loops=1)
  Group Key: lineitem.l_shipmode
  ->  Gather Merge  (cost=2223642.12..2226046.44 rows=14 width=27) (actual time=20608.955..21098.180 rows=6 loops=1)
        Workers Planned: 2
        Workers Launched: 2
        ->  Partial GroupAggregate  (cost=2222642.09..2225044.80 rows=7 width=27) (actual time=20571.151..20630.952 rows=2 loops=3)
              Group Key: lineitem.l_shipmode
              ->  Sort  (cost=2222642.09..2222942.42 rows=120132 width=27) (actual time=20485.030..20525.112 rows=104150 loops=3)
                    Sort Key: lineitem.l_shipmode
                    Sort Method: external merge  Disk: 3576kB
                    Worker 0:  Sort Method: external merge  Disk: 4120kB
                    Worker 1:  Sort Method: external merge  Disk: 3664kB
                    ->  Parallel Hash Join  (cost=447062.90..2209629.40 rows=120132 width=27) (actual time=18893.932..20399.170 rows=104150 loops=3)
                          Hash Cond: (lineitem.l_orderkey = orders.o_orderkey)
                          ->  Parallel Seq Scan on lineitem  (cost=0.00..1724079.15 rows=120132 width=19) (actual time=0.136..13864.453 rows=104150 loops=3)
                                Filter: ((l_shipmode = ANY ('{AIR,SHIP}'::bpchar[])) AND (l_commitdate < l_receiptdate) AND (l_shipdate < l_commitdate) AND (l_receiptdate >= '1996-01-01'::date) AND (l_receiptdate < '1997-01-01 00:00:00'::timestamp without time zone))
                                Rows Removed by Filter: 19891111
                          ->  Parallel Hash  (cost=331869.51..331869.51 rows=6274351 width=24) (actual time=4793.292..4793.293 rows=5000000 loops=3)
                                Buckets: 65536  Batches: 256  Memory Usage: 3808kB
                                ->  Parallel Seq Scan on orders  (cost=0.00..331869.51 rows=6274351 width=24) (actual time=0.043..2062.869 rows=5000000 loops=3)
 l_shipmode | high_line_count | low_line_count 
------------+-----------------+----------------
 AIR        |           62347 |          94021
 SHIP       |           62226 |          93855
(2 rows)

COMMIT;
COMMIT