Sure, below is the query. I attached the plan to this posting.
select
nation,
o_year,
sum(amount) as sum_profit
from
(
select
n_name as nation,
extract(year from o_orderdate) as o_year,
l_extendedprice * (1 - l_discount) -
ps_supplycost * l_quantity as amount
from
part,
supplier,
lineitem,
partsupp,
orders,
nation
where
s_suppkey = l_suppkey
and ps_suppkey = l_suppkey
and ps_partkey = l_partkey
and p_partkey = l_partkey
and o_orderkey = l_orderkey
and s_nationkey = n_nationkey
and p_name like '%green%'
) as profit
group by
nation,
o_year
order by
nation,
o_year desc;
-----Original Message-----
From: Josh Berkus [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 01, 2003 11:42 AM
To: Oleg Lebedev; scott.marlowe
Cc: [EMAIL PROTECTED]
Subject: Re: [PERFORM] TPC-R benchmarks
Oleg,
> The output of the query should contain about 200 rows. So, I guess the
> planer is off assuming that the query should return 1 row.
Oh, also did you post the query before? Can you re-post it with the
planner
results?
--
Josh Berkus
Aglio Database Solutions
San Francisco
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-> Sort (cost=54597.49..54597.50 rows=1 width=121)
Sort Key: nation.n_name, date_part('year'::text,orders.o_orderdate)
-> Aggregate (cost=54597.45..54597.48 rows=1 width=121)
-> Group (cost=54597.45..54597.47 rows=3 width=121)
-> Sort (cost=54597.45..54597.46 rows=3 width=121)
Sort Key: nation.n_name, date_part('year'::text, orders.o_orderdate)
-> Hash Join (cost=54596.00..54597.42 rows=3 width=121)
Hash Cond: ("outer".n_nationkey = "inner".s_nationkey)
-> Seq Scan on nation (cost=0.00..1.25 rows=25 width=33)
-> Hash (cost=54596.00..54596.00 rows=3 width=88)
-> Nested Loop (cost=0.00..54596.00 rows=3 width=88)
Join Filter: ("inner".s_suppkey = "outer".l_suppkey)
-> Nested Loop (cost=0.00..54586.18 rows=3 width=80)
-> Nested Loop (cost=0.00..54575.47 rows=4 width=68)
Join Filter: ("outer".p_partkey = "inner".ps_partkey)
-> Nested Loop (cost=0.00..22753.33 rows=9343 width=49)
-> Seq Scan on part (cost=0.00..7868.00 rows=320 width=4)
Filter: (p_name ~~ '%green%'::text)
-> Index Scan using i_l_partkey on lineitem (cost=0.00..46.15 rows=29 width=45)
Index
Cond: ("outer".p_partkey = lineitem.l_partkey)
-> Index Scan using pk_partsupp on partsupp (cost=0.00..3.39 rows=1 width=19)
Index Cond: ((partsupp.ps_partkey = "outer".l_partkey) AND (partsupp.ps_suppkey =
"outer".l_suppkey))
-> Index Scan using pk_orders on orders (cost=0.00..3.01 rows=1 width=12)
Index Cond: (orders.o_orderkey = "outer".l_orderkey)
-> Index Scan using pk_supplier on supplier (cost=0.00..3.01 rows=1 width=8)
Index Cond: ("outer".ps_suppkey = supplier.s_suppkey) (27 rows)
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