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			21 lines
		
	
	
		
			576 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			21 lines
		
	
	
		
			576 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| --source include/have_innodb.inc
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| 
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| --echo #
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| --echo # Bug #20762798 FK DDL: CRASH IN DICT_FOREIGN_REMOVE_FROM_CACHE
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| --echo #
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| 
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| create table t1(a int, b int, key(a),key(b))engine=innodb;
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| create table t2(a int, b int, key(a),key(b))engine=innodb;
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| 
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| alter table t2 add constraint b foreign key (b) references t1(a);
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| alter table t1 add constraint b1 foreign key (b) references t2(a);
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| 
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| --error ER_CANT_CREATE_TABLE
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| alter table t2 add constraint b1 foreign key (b) references t1(a);
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| 
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| alter table t2 drop foreign key b;
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| alter table t1 drop foreign key b1;
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| 
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| drop table t2;
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| drop table t1;
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