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108 lines
3.2 KiB
Text
108 lines
3.2 KiB
Text
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set @save_optimizer_use_stat_tables=@@optimizer_use_stat_tables;
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set optimizer_use_stat_tables='preferably';
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--disable_warnings
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DROP DATABASE IF EXISTS dbt3_s001;
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--enable_warnings
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CREATE DATABASE dbt3_s001;
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use dbt3_s001;
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--disable_query_log
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--disable_result_log
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--disable_warnings
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--source include/dbt3_s001.inc
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create index i_p_retailprice on part(p_retailprice);
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ANALYZE TABLE
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customer, lineitem, nation, orders, part, partsupp, region, supplier;
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FLUSH TABLES customer, lineitem, nation, orders, part, partsupp, region, supplier;
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--enable_warnings
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--enable_result_log
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--enable_query_log
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select * from mysql.table_stat;
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select * from mysql.index_stat;
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set @save_optimizer_switch=@@optimizer_switch;
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set optimizer_switch='index_condition_pushdown=off';
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let $Q5=
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select n_name, sum(l_extendedprice * (1 - l_discount)) as revenue
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from customer, orders, lineitem, supplier, nation, region
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where c_custkey = o_custkey and l_orderkey = o_orderkey
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and l_suppkey = s_suppkey and c_nationkey = s_nationkey
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and s_nationkey = n_nationkey and n_regionkey = r_regionkey
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and r_name = 'AMERICA' and o_orderdate >= date '1995-01-01'
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and o_orderdate < date '1995-01-01' + interval '1' year
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group by n_name
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order by revenue desc;
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eval EXPLAIN $Q5;
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eval $Q5;
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set optimizer_switch=@save_optimizer_switch;
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let $Q8=
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select o_year,
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sum(case when nation = 'UNITED STATES' then volume else 0 end) /
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sum(volume) as mkt_share
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from (select extract(year from o_orderdate) as o_year,
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l_extendedprice * (1-l_discount) as volume,
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n2.n_name as nation
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from part, supplier, lineitem, orders, customer,
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nation n1, nation n2, region
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where p_partkey = l_partkey and s_suppkey = l_suppkey
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and l_orderkey = o_orderkey and o_custkey = c_custkey
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and c_nationkey = n1.n_nationkey and n1.n_regionkey = r_regionkey
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and r_name = 'AMERICA' and s_nationkey = n2.n_nationkey
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and o_orderdate between date '1995-01-01' and date '1996-12-31'
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and p_type = 'STANDARD BRUSHED STEEL' ) as all_nations
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group by o_year
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order by o_year;
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eval EXPLAIN $Q8;
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eval $Q8;
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let $Q9=
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select nation, o_year, sum(amount) as sum_profit
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from (select n_name as nation,
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extract(year from o_orderdate) as o_year,
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l_extendedprice * (1 - l_discount) - ps_supplycost * l_quantity as amount
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from part, supplier, lineitem, partsupp, orders, nation
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where s_suppkey = l_suppkey and ps_suppkey = l_suppkey
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and ps_partkey = l_partkey and p_partkey = l_partkey
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and o_orderkey = l_orderkey and s_nationkey = n_nationkey
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and p_name like '%green%') as profit
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group by nation, o_year
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order by nation, o_year desc;
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eval EXPLAIN $Q9;
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eval $Q9;
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set @save_optimizer_switch=@@optimizer_switch;
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set optimizer_switch='extended_keys=on';
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let $QQ1=
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select o_orderkey, p_partkey
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from part, lineitem, orders
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where p_retailprice > 1100 and o_orderdate='1997-01-01'
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and o_orderkey=l_orderkey and p_partkey=l_partkey;
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eval EXPLAIN $QQ1;
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eval $QQ1;
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set optimizer_switch=@save_optimizer_switch;
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DROP DATABASE dbt3_s001;
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use test;
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set optimizer_use_stat_tables=@save_optimizer_use_stat_tables;
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