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			12 lines
		
	
	
		
			416 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			12 lines
		
	
	
		
			416 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
drop table if exists t1;
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create table t1(objid BIGINT not null, tablename  varchar(64), oid BIGINT not null, test BIGINT,  PRIMARY KEY (objid), UNIQUE(tablename))  engine=BDB;
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insert into t1 values(1, 't1',4,9);
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insert into t1 values(2, 'metatable',1,9);
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insert into t1 values(3, 'metaindex',1,9 );
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select * from t1;
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objid	tablename	oid	test
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1	t1	4	9
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2	metatable	1	9
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3	metaindex	1	9
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alter table t1 drop column test;
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