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# ===== 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 NO NULL
b char(5) NO NULL
ALTER TABLE t1 DROP COLUMN b;
DESC t1;
Field Type Null Key Default Extra
a int NO NULL
ALTER TABLE t1 MODIFY a BIGINT NOT NULL;
DESC t1;
Field Type Null Key Default Extra
a bigint NO NULL
ALTER TABLE t1 CHANGE a a INT NOT NULL;
DESC t1;
Field Type Null Key Default Extra
a int 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 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 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 NO NULL
DROP TABLE t1;
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