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			28 lines
		
	
	
	
		
			695 B
		
	
	
	
		
			Text
		
	
	
	
	
	
			
		
		
	
	
			28 lines
		
	
	
	
		
			695 B
		
	
	
	
		
			Text
		
	
	
	
	
	
| #
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| # MDEV-371 Unique indexes for blobs
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| #
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| 
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| create table t1(a blob , unique(a) using hash);
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| --query_vertical show keys from t1;
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| drop table t1;
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| 
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| --error ER_TOO_LONG_KEY
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| create table t1(a blob , unique(a) using btree);
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| 
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| create table t1(a int , unique(a) using hash);
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| --query_vertical show keys from t1;
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| drop table t1;
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| 
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| create table t1(a int ,b int , c int,  unique(a, b, c) using hash);
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| show keys from t1;
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| insert into t1 values(1,1,1);
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| --error ER_DUP_ENTRY
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| insert into t1 values(1,1,1);
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| drop table t1;
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| 
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| create table t1(a int ,b int , c int,  unique(a, b, c) using hash) engine=memory;
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| show keys from t1;
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| insert into t1 values(1,1,1);
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| --error ER_DUP_ENTRY
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| insert into t1 values(1,1,1);
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| drop table t1;
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