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			19 lines
		
	
	
	
		
			518 B
		
	
	
	
		
			Text
		
	
	
	
	
	
			
		
		
	
	
			19 lines
		
	
	
	
		
			518 B
		
	
	
	
		
			Text
		
	
	
	
	
	
| USE test;
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| create table p(v varchar(20), i int, primary key(v,i)) engine=innodb character set = utf8;
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| create table c(k int primary key, v varchar(20), i int, foreign key(v,i) references p(v,i)) engine=innodb character set = utf8;
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| insert into p values (_utf32 0x000004100000041100000412, 1);
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| insert into c values (1, _utf32 0x000004100000041100000412, 1);
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| SELECT * FROM test.p;
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| v	i
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| ???	1
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| SELECT * FROM test.c;
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| k	v	i
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| 1	???	1
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| SELECT * FROM test.p;
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| v	i
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| ???	1
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| SELECT * FROM test.c;
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| k	v	i
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| 1	???	1
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| DROP TABLE c;
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| DROP TABLE p;
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