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			128 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			128 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
connect  con1,localhost,root,,;
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connect  con2,localhost,root,,;
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drop table if exists t1,t2;
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connection con1;
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create table t1 (id integer, x integer) engine = InnoDB;
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insert into t1 values(0, 0);
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set autocommit=0;
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SELECT * from t1 where id = 0 FOR UPDATE;
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id	x
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0	0
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connection con2;
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set autocommit=0;
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update t1 set x=2 where id = 0;
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connection con1;
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update t1 set x=1 where id = 0;
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select * from t1;
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id	x
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0	1
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commit;
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connection con2;
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commit;
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connection con1;
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select * from t1;
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id	x
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0	2
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commit;
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drop table t1;
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connection con1;
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create table t1 (id integer, x integer) engine = InnoDB;
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create table t2 (b integer, a integer) engine = InnoDB;
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insert into t1 values(0, 0), (300, 300);
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insert into t2 values(0, 10), (1, 20), (2, 30);
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commit;
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set autocommit=0;
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select * from t2;
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b	a
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0	10
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1	20
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2	30
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update t2 set a=100 where b=(SELECT x from t1 where id = b FOR UPDATE);
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select * from t2;
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b	a
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0	100
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1	20
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2	30
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select * from t1;
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id	x
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0	0
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300	300
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connection con2;
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set autocommit=0;
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update t1 set x=2 where id = 0;
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connection con1;
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update t1 set x=1 where id = 0;
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select * from t1;
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id	x
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0	1
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300	300
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commit;
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connection con2;
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commit;
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connection con1;
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select * from t1;
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id	x
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0	2
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300	300
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commit;
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drop table t1, t2;
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create table t1 (id integer, x integer) engine = InnoDB;
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create table t2 (b integer, a integer) engine = InnoDB;
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insert into t1 values(0, 0), (300, 300);
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insert into t2 values(0, 0), (1, 20), (2, 30);
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commit;
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connection con1;
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select a,b from t2 UNION SELECT id, x from t1 FOR UPDATE;
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a	b
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0	0
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20	1
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30	2
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300	300
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select * from t2;
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b	a
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0	0
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1	20
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2	30
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select * from t1;
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id	x
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0	0
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300	300
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connection con2;
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update t2 set a=2 where b = 0;
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select * from t2;
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b	a
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0	2
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1	20
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2	30
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update t1 set x=2 where id = 0;
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connection con1;
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update t1 set x=1 where id = 0;
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select * from t1;
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id	x
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0	1
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300	300
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commit;
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connection con2;
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commit;
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connection con1;
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select * from t1;
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id	x
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0	2
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300	300
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commit;
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connection default;
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disconnect con1;
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disconnect con2;
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drop table t1, t2;
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End of 4.1 tests
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set storage_engine=innodb;
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drop table if exists a;
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drop table if exists A;
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create table A (c int);
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insert into A (c) values (0);
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create table a as select * from A;
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drop table A;
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drop table if exists a;
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set storage_engine=default;
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End of 5.0 tests.
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