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#
# MDEV-31086 MODIFY COLUMN can break FK constraints, and
# lead to unrestorable dumps
#
CREATE TABLE t1(
id SERIAL,
msg VARCHAR(100) CHARACTER SET utf8mb3,
KEY(msg))ENGINE=InnoDB;
CREATE TABLE t2(
id SERIAL,
msg varchar(100) CHARACTER SET utf8mb4,
CONSTRAINT fk_t1 FOREIGN KEY (msg) REFERENCES t1 (msg))ENGINE=InnoDB;
ERROR HY000: Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
CREATE TABLE t2(
id SERIAL,
msg varchar(100) CHARACTER SET utf8mb3,
msg_1 varchar(100) CHARACTER SET utf8mb3,
INDEX (msg_1),
INDEX (msg),
CONSTRAINT fk_t1 FOREIGN KEY (msg) REFERENCES t1 (msg)
ON DELETE CASCADE)ENGINE=InnoDB;
SET FOREIGN_KEY_CHECKS=1;
ALTER TABLE t2 MODIFY COLUMN msg VARCHAR(200) character set utf8mb3, ALGORITHM=COPY;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'fk_t1'
ALTER TABLE t2 MODIFY COLUMN msg VARCHAR(200) character set utf8mb3, ALGORITHM=INPLACE;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'test/fk_t1'
SET FOREIGN_KEY_CHECKS=0;
ALTER TABLE t2 MODIFY COLUMN msg VARCHAR(200) character set utf8mb3, ALGORITHM=COPY;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'fk_t1'
ALTER TABLE t2 MODIFY COLUMN msg VARCHAR(400) character set utf8mb3, ALGORITHM=INPLACE;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'test/fk_t1'
SET FOREIGN_KEY_CHECKS=1;
ALTER TABLE t2 MODIFY COLUMN msg VARCHAR(100) CHARACTER SET utf8mb4, ALGORITHM=COPY;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'fk_t1'
ALTER TABLE t2 MODIFY COLUMN msg VARCHAR(100) CHARACTER SET utf8mb4, ALGORITHM=INPLACE;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'test/fk_t1'
SET FOREIGN_KEY_CHECKS=0;
ALTER TABLE t2 MODIFY COLUMN msg VARCHAR(100) CHARACTER SET utf8mb4,ALGORITHM=COPY;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'fk_t1'
ALTER TABLE t2 MODIFY COLUMN msg VARCHAR(100) CHARACTER SET utf8mb4,ALGORITHM=INPLACE;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'test/fk_t1'
SET FOREIGN_KEY_CHECKS=1;
ALTER TABLE t2 ADD CONSTRAINT FOREIGN KEY(msg_1) REFERENCES t1(msg),MODIFY COLUMN msg_1 VARCHAR(100) CHARACTER SET utf8mb4, ALGORITHM=COPY;
ERROR HY000: Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
ALTER TABLE t2 ADD CONSTRAINT FOREIGN KEY(msg_1) REFERENCES t1(msg),MODIFY COLUMN msg_1 VARCHAR(100) CHARACTER SET utf8mb4, ALGORITHM=INPLACE;
ERROR 0A000: ALGORITHM=INPLACE is not supported. Reason: Adding foreign keys needs foreign_key_checks=OFF. Try ALGORITHM=COPY
SET FOREIGN_KEY_CHECKS=0;
ALTER TABLE t2 ADD CONSTRAINT FOREIGN KEY(msg_1) REFERENCES t1(msg),MODIFY COLUMN msg_1 VARCHAR(100) CHARACTER SET utf8mb4, ALGORITHM=COPY;
ERROR HY000: Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
ALTER TABLE t2 ADD CONSTRAINT FOREIGN KEY(msg_1) REFERENCES t1(msg),MODIFY COLUMN msg_1 VARCHAR(100) CHARACTER SET utf8mb4, ALGORITHM=INPLACE;
ERROR HY000: Cannot change column 'msg_1': used in a foreign key constraint 'test/t2_ibfk_0'
ALTER TABLE t2 ADD CONSTRAINT FOREIGN KEY(msg_1) REFERENCES t1(msg),MODIFY COLUMN msg_1 VARCHAR(200) CHARACTER SET utf8mb3, ALGORITHM=INPLACE;
ERROR HY000: Cannot change column 'msg_1': used in a foreign key constraint 'test/t2_ibfk_0'
SET FOREIGN_KEY_CHECKS=1;
ALTER TABLE t1 MODIFY msg VARCHAR(200) CHARSET utf8mb3, ALGORITHM=COPY;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'fk_t1' of table 'test.t2'
ALTER TABLE t1 MODIFY msg VARCHAR(200) CHARSET utf8mb3, ALGORITHM=INPLACE;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'test/fk_t1' of table 'test/t2'
ALTER TABLE t1 MODIFY msg VARCHAR(200) CHARSET utf8mb4, ALGORITHM=COPY;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'fk_t1' of table 'test.t2'
ALTER TABLE t1 MODIFY msg VARCHAR(200) CHARSET utf8mb4, ALGORITHM=INPLACE;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'test/fk_t1' of table 'test/t2'
SET FOREIGN_KEY_CHECKS=0;
ALTER TABLE t1 MODIFY msg VARCHAR(200) CHARSET utf8mb3, ALGORITHM=COPY;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'fk_t1' of table 'test.t2'
ALTER TABLE t1 MODIFY msg VARCHAR(400) CHARSET utf8mb3, ALGORITHM=INPLACE;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'test/fk_t1' of table 'test/t2'
ALTER TABLE t1 MODIFY msg VARCHAR(200) CHARSET utf8mb4, ALGORITHM=COPY;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'fk_t1' of table 'test.t2'
ALTER TABLE t1 MODIFY msg VARCHAR(200) CHARSET utf8mb4, ALGORITHM=INPLACE;
ERROR HY000: Cannot change column 'msg': used in a foreign key constraint 'test/fk_t1' of table 'test/t2'
SET FOREIGN_KEY_CHECKS=0;
ALTER TABLE t2 DROP FOREIGN KEY fk_t1, MODIFY msg VARCHAR(200) CHARSET utf8mb4, ALGORITHM=COPY;
ALTER TABLE t1 MODIFY msg VARCHAR(200) CHARSET utf8mb4, ALGORITHM=COPY;
ALTER TABLE t2 ADD CONSTRAINT FOREIGN KEY (msg) REFERENCES t1(msg), aLGORITHM=INPLACE;
SET FOREIGN_KEY_CHECKS=1;
DROP TABLE t2, t1;
#
# MDEV-31869 Server aborts when table does drop column
#
CREATE TABLE t (a VARCHAR(40), b INT, C INT) ENGINE=InnoDB;
ALTER TABLE t MODIFY a VARCHAR(50), DROP b;
DROP TABLE t;
#
# MDEV-32060 Server aborts when table doesn't
# have referenced index
#
SET SESSION FOREIGN_KEY_CHECKS = OFF;
CREATE TABLE t1 (a VARCHAR(16) KEY, FOREIGN KEY(a) REFERENCES t2(b)) ENGINE=InnoDB;
CREATE TABLE t2 (b VARCHAR(8)) ENGINE=InnoDB;
SET SESSION FOREIGN_KEY_CHECKS = ON;
ALTER TABLE t2 MODIFY b VARCHAR(16), ADD KEY(b);
DROP TABLE t1, t2;
#
# MDEV-32337 Assertion `pos < table->n_def' failed
# in dict_table_get_nth_col
#
CREATE TABLE t (a INT, va INT AS (a), b INT, vb INT AS (b),
c INT, vc INT AS (c), vf VARCHAR(16) AS (f),
f VARCHAR(4)) ENGINE=InnoDB;
ALTER TABLE t MODIFY f VARCHAR(8);
ALTER TABLE t MODIFY vf VARCHAR(18);
ERROR HY000: This is not yet supported for generated columns
DROP TABLE t;
#
# MDEV-32527 Server aborts during alter operation
# when table doesn't have foreign index
#
CREATE TABLE t1 (f1 INT NOT NULL, INDEX(f1)) ENGINE=InnoDB;
CREATE TABLE t2(f1 INT NOT NULL, f2 VARCHAR(100) DEFAULT NULL,
INDEX idx(f1, f2),
FOREIGN KEY(f1) REFERENCES t1(f1))ENGINE=INNODB;
SET SESSION FOREIGN_KEY_CHECKS = OFF;
ALTER TABLE t2 DROP INDEX idx;
ALTER TABLE t2 MODIFY f2 VARCHAR(1023);
SET SESSION FOREIGN_KEY_CHECKS = ON;
DROP TABLE t2, t1;
# End of 10.4 tests
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