mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-05-30 00:27:08 +03:00
79 lines
2.9 KiB
Plaintext
79 lines
2.9 KiB
Plaintext
DROP DATABASE IF EXISTS unsigned_joins_db;
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CREATE DATABASE unsigned_joins_db;
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USE unsigned_joins_db;
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create table customer (
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c_custkey int,
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c_name varchar (25),
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c_address varchar (40),
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c_nationkey int,
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c_phone char (15),
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c_acctbal decimal(12,2),
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c_mktsegment char (10),
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c_comment varchar (117)
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) engine=columnstore;
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create table orders (
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o_orderkey int,
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o_custkey int,
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o_orderstatus char (1),
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o_totalprice decimal(12,2),
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o_orderdate date,
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o_orderpriority char (15),
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o_clerk char (15),
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o_shippriority int,
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o_comment varchar (79)
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) engine=columnstore;
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LOAD DATA LOCAL infile './suite/columnstore/std_data/1m_customer.tbl' INTO TABLE customer FIELDS TERMINATED BY '|';
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LOAD DATA LOCAL infile './suite/columnstore/std_data/1m_orders.tbl' INTO TABLE orders FIELDS TERMINATED BY '|';
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alter table customer add column u_custkey int unsigned;
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update customer set u_custkey=c_custkey;
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alter table orders add column u_custkey int unsigned;
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update orders set u_custkey=o_custkey;
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select count(*) as count1 from customer join orders on orders.u_custkey = customer.u_custkey;
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count1
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1500
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select count(*) as count2 from customer left join orders on orders.u_custkey = customer.u_custkey;
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count2
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1550
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select count(*) as count3 from customer right join orders on orders.u_custkey = customer.u_custkey;
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count3
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1500
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select count(*) as count4 from customer where exists (select u_custkey from orders where orders.u_custkey = customer.u_custkey);
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count4
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100
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select count(*) as count5 from customer where not exists (select u_custkey from orders where orders.u_custkey = customer.u_custkey);
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count5
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50
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select count(*) as count11 from customer join orders on orders.o_custkey = customer.u_custkey;
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count11
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1500
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select count(*) as count12 from customer left join orders on orders.o_custkey = customer.u_custkey;
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count12
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1550
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select count(*) as count13 from customer right join orders on orders.o_custkey = customer.u_custkey;
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count13
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1500
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select count(*) as count14 from customer where exists (select u_custkey from orders where orders.o_custkey = customer.u_custkey);
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count14
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100
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select count(*) as count15 from customer where not exists (select u_custkey from orders where orders.o_custkey = customer.u_custkey);
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count15
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50
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select count(*) as count11 from customer join orders on orders.u_custkey = customer.c_custkey;
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count11
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1500
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select count(*) as count12 from customer left join orders on orders.u_custkey = customer.c_custkey;
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count12
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1550
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select count(*) as count13 from customer right join orders on orders.u_custkey = customer.c_custkey;
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count13
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1500
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select count(*) as count14 from customer where exists (select u_custkey from orders where orders.u_custkey = customer.c_custkey);
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count14
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100
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select count(*) as count15 from customer where not exists (select u_custkey from orders where orders.u_custkey = customer.c_custkey);
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count15
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50
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alter table customer drop column u_custkey;
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alter table orders drop column u_custkey;
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DROP DATABASE unsigned_joins_db;
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