41 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
		
		
			
		
	
	
			41 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
|  | # ===== csv_alter_table.1 ===== | ||
|  | DROP TABLE IF EXISTS t1; | ||
|  | CREATE TABLE t1 (a int NOT NULL) ENGINE = CSV; | ||
|  | ALTER TABLE t1 ADD COLUMN b CHAR(5) NOT NULL; | ||
|  | DESC t1; | ||
|  | Field	Type	Null	Key	Default	Extra | ||
|  | a	int(11)	NO		NULL	 | ||
|  | b	char(5)	NO		NULL	 | ||
|  | ALTER TABLE t1 DROP COLUMN b; | ||
|  | DESC t1; | ||
|  | Field	Type	Null	Key	Default	Extra | ||
|  | a	int(11)	NO		NULL	 | ||
|  | ALTER TABLE t1 MODIFY a BIGINT NOT NULL; | ||
|  | DESC t1; | ||
|  | Field	Type	Null	Key	Default	Extra | ||
|  | a	bigint(20)	NO		NULL	 | ||
|  | ALTER TABLE t1 CHANGE a a INT NOT NULL; | ||
|  | DESC t1; | ||
|  | Field	Type	Null	Key	Default	Extra | ||
|  | a	int(11)	NO		NULL	 | ||
|  | DROP TABLE t1; | ||
|  | # ===== csv_alter_table.2 ===== | ||
|  | DROP TABLE IF EXISTS t1; | ||
|  | CREATE TABLE t1 (a int NOT NULL) ENGINE = CSV; | ||
|  | ALTER TABLE t1 ADD COLUMN b CHAR(5); | ||
|  | ERROR 42000: The storage engine for the table doesn't support nullable columns | ||
|  | DESC t1; | ||
|  | Field	Type	Null	Key	Default	Extra | ||
|  | a	int(11)	NO		NULL	 | ||
|  | ALTER TABLE t1 MODIFY a BIGINT; | ||
|  | ERROR 42000: The storage engine for the table doesn't support nullable columns | ||
|  | DESC t1; | ||
|  | Field	Type	Null	Key	Default	Extra | ||
|  | a	int(11)	NO		NULL	 | ||
|  | ALTER TABLE t1 CHANGE a a INT; | ||
|  | ERROR 42000: The storage engine for the table doesn't support nullable columns | ||
|  | DESC t1; | ||
|  | Field	Type	Null	Key	Default	Extra | ||
|  | a	int(11)	NO		NULL	 | ||
|  | DROP TABLE t1; |