Re: TPC-R benchmarks

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От Oleg Lebedev
Тема Re: TPC-R benchmarks
Дата
Msg-id 993DBE5B4D02194382EC8DF8554A52731D7618@postoffice.waterford.org
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Ответ на TPC-R benchmarks  (Oleg Lebedev <oleg.lebedev@waterford.org>)
Список pgsql-performance
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:josh@agliodbs.com]
Sent: Wednesday, October 01, 2003 11:42 AM
To: Oleg Lebedev; scott.marlowe
Cc: pgsql-performance@postgresql.org
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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