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