mariadb/mysql-test/suite/innodb/t/foreign_null.test

--source include/have_innodb.inc
call mtr.add_suppression("InnoDB: In ALTER TABLE .* has or is referenced in foreign key constraints which are not compatible with the new table definition.");

let $MYSQLD_DATADIR= `select @@datadir`;
let $algorithm=`select regexp_replace('$MTR_COMBINATIONS', 'innodb,\|,innodb', '')`;

--echo # modify child column NOT NULL on UPDATE CASCADE..parent column NULL
CREATE TABLE t1(f1 INT, f2 INT, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT, FOREIGN KEY(f1) REFERENCES t1(f2) ON UPDATE CASCADE)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
--error ER_FK_COLUMN_NOT_NULL
eval ALTER TABLE t2 MODIFY COLUMN f1 INT NOT NULL,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify child column NOT NULL ON DELETE CASCADE..parent column NULL
CREATE TABLE t1(f1 INT, f2 INT, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT, FOREIGN KEY(f1) REFERENCES t1(f2) ON DELETE CASCADE)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t2 MODIFY COLUMN f1 INT NOT NULL,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify child column NOT NULL ON UPDATE SET NULL
CREATE TABLE t1(f1 INT, f2 INT, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT, f2 INT, FOREIGN KEY(f1) REFERENCES t1(f1) ON UPDATE SET NULL)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
--error ER_FK_COLUMN_NOT_NULL
eval ALTER TABLE t2 MODIFY COLUMN f1 INT NOT NULL,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify child column NOT NULL ON DELETE SET NULL
CREATE TABLE t1(f1 INT, f2 INT, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT, f2 INT, FOREIGN KEY (f2) REFERENCES t1(f2) ON DELETE SET NULL)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
--error ER_FK_COLUMN_NOT_NULL
eval ALTER TABLE t2 MODIFY COLUMN f2 INT NOT NULL,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify child column NOT NULL ON UPDATE RESTRICT..parent column NULL
CREATE TABLE t1(f1 INT, f2 INT, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT, f2 INT, FOREIGN KEY (f2) REFERENCES t1(f2) ON UPDATE RESTRICT)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t2 MODIFY COLUMN f2 INT NOT NULL,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify child column NOT NULL ON DELETE RESTRICT..parent column NULL
CREATE TABLE t1(f1 INT, f2 INT, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT, f2 INT, FOREIGN KEY (f2) REFERENCES t1(f2) ON DELETE RESTRICT)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t2 MODIFY COLUMN f2 INT NOT NULL,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify child column NOT NULL ON UPDATE NO ACTION..PARENT COLUMN NULL
CREATE TABLE t1(f1 INT, f2 INT, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT, f2 INT, FOREIGN KEY (f2) REFERENCES t1(f2) ON UPDATE NO ACTION)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t2 MODIFY COLUMN f2 INT NOT NULL,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify child column NOT NULL ON DELETE NO ACTION..PARENT COLUMN NULL
CREATE TABLE t1(f1 INT, f2 INT, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT, f2 INT, FOREIGN KEY (f2) REFERENCES t1(f2) ON DELETE NO ACTION)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t2 MODIFY COLUMN f2 INT NOT NULL,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify parent column NULL ON UPDATE CASCADE child column NOT NULL
CREATE TABLE `t#1`(f1 INT, f2 INT NOT NULL, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE `t#2`(f1 INT NOT NULL,
		   FOREIGN KEY(f1) REFERENCES `t#1`(f2)
		   ON UPDATE CASCADE)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
--error ER_FK_COLUMN_CANNOT_CHANGE_CHILD
eval ALTER TABLE `t#1` MODIFY COLUMN f2 INT,ALGORITHM=$algorithm;
DROP TABLE `t#2`, `t#1`;

--echo # modify parent column NULL ON DELETE CASCADE child column NOT NULL
CREATE TABLE t1(f1 INT, f2 INT NOT NULL, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT NOT NULL, FOREIGN KEY(f1) REFERENCES t1(f2) ON DELETE CASCADE)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t1 MODIFY COLUMN f2 INT,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify parent column NULL ON UPDATE SET NULL child column NOT NULL
CREATE TABLE t1(f1 INT, f2 INT NOT NULL, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
--error ER_CANT_CREATE_TABLE
CREATE TABLE t2(f1 INT NOT NULL, FOREIGN KEY(f1) REFERENCES t1(f2) ON UPDATE SET NULL)ENGINE=InnoDB;
DROP TABLE t1;

--echo # modify parent column NULL ON DELETE SET NULL child NOT NULL
CREATE TABLE t1(f1 INT, f2 INT NOT NULL, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
--error ER_CANT_CREATE_TABLE
CREATE TABLE t2(f1 INT NOT NULL, FOREIGN KEY(f1) REFERENCES t1(f2) ON DELETE SET NULL)ENGINE=InnoDB;
DROP TABLE t1;

--echo # modify parent column NULL ON UPDATE RESTRICT child column NOT NULL
CREATE TABLE t1(f1 INT, f2 INT NOT NULL, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT NOT NULL, FOREIGN KEY(f1) REFERENCES t1(f2) ON UPDATE RESTRICT)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t1 MODIFY COLUMN f2 INT,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify parent column NULL ON DELETE RESTRICT child column NOT NULL
CREATE TABLE t1(f1 INT, f2 INT NOT NULL, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT NOT NULL, FOREIGN KEY(f1) REFERENCES t1(f2) ON UPDATE RESTRICT)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t1 MODIFY COLUMN f2 INT,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify parent column NULL ON UPDATE NO ACTION child column NOT NULL
CREATE TABLE t1(f1 INT, f2 INT NOT NULL, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT NOT NULL, FOREIGN KEY(f1) REFERENCES t1(f2) ON UPDATE NO ACTION)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t1 MODIFY COLUMN f2 INT,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify parent column NULL ON DELETE NO ACTION child column NOT NULL
CREATE TABLE t1(f1 INT, f2 INT NOT NULL, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT NOT NULL, FOREIGN KEY(f1) REFERENCES t1(f2) ON DELETE NO ACTION)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t1 MODIFY COLUMN f2 INT,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # foreign key constraint for multiple columns
--echo # modify parent column NULL ON UPDATE CASCADE child column NOT NULL
CREATE TABLE t1(f1 INT NOT NULL, f2 INT NOT NULL,
		INDEX(f1, f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT NOT NULL, f2 INT NOT NULL,
		INDEX(f1, f2),
		FOREIGN KEY(f1, f2) REFERENCES t1(f1, f2) ON
		UPDATE CASCADE)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
--error ER_FK_COLUMN_CANNOT_CHANGE_CHILD
eval ALTER TABLE t1 MODIFY COLUMN f1 INT,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # modify child column NOT NULL ON UPDATE CASCADE parent column NULL
CREATE TABLE t1(f1 INT, f2 INT, INDEX(f1, f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT, f2 INT, INDEX(f1, f2),
		FOREIGN KEY(f1, f2) REFERENCES t1(f1, f2) ON
		UPDATE CASCADE)ENGINE=InnoDB;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
--error ER_FK_COLUMN_NOT_NULL
eval ALTER TABLE t2 MODIFY COLUMN f2 INT NOT NULL,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # allow foreign key constraints when parent table created later
SET FOREIGN_KEY_CHECKS=0;
CREATE TABLE t2(f1 INT, FOREIGN KEY(f1) REFERENCES t1(f2) ON UPDATE CASCADE)ENGINE=InnoDB;
SET FOREIGN_KEY_CHECKS=1;
ALTER TABLE t2 MODIFY COLUMN f1 INT NOT NULL;
CREATE TABLE t1(f1 INT, f2 INT, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
INSERT INTO t1 VALUES(1, 1);
INSERT INTO t2 VALUES(1);
--error ER_ROW_IS_REFERENCED_2
UPDATE t1 SET f2= NULL;
SELECT * FROM t2;
SET FOREIGN_KEY_CHECKS=0;
UPDATE t1 SET f2= NULL;
SELECT * FROM t2;
DROP TABLE t2, t1;

--echo # Modify column + Drop column & Drop foreign key constraint
CREATE TABLE t1(f1 INT, f2 INT, KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT, f2 INT, f3 INT,
                FOREIGN KEY fdx(f2) REFERENCES t1(f1),
                FOREIGN KEY fdx2(f3) REFERENCES t1(f2))ENGINE=InnoDB;

replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t2 MODIFY f2 INT NOT NULL, DROP FOREIGN KEY fdx,ALGORITHM=$algorithm;

replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t2 ADD FOREIGN KEY fdx (f2) REFERENCES t1(f1),ALGORITHM=$algorithm;

replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t2 DROP COLUMN f2, DROP FOREIGN KEY fdx,ALGORITHM=$algorithm;
DROP TABLE t2, t1;

--echo # Drop foreign index & modify column
CREATE TABLE `t#1`(f1 INT, f2 INT NOT NULL, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE `t#2`(f1 INT NOT NULL, FOREIGN KEY(f1) REFERENCES `t#1`(f2) ON UPDATE CASCADE)ENGINE=InnoDB;

SET FOREIGN_KEY_CHECKS=0;
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE `t#2` DROP INDEX f1,ALGORITHM=$algorithm;
SET FOREIGN_KEY_CHECKS=1;

let $error_code=0;
if ($algorithm == "COPY")
{
  let $error_code= ER_ERROR_ON_RENAME;
}

--replace_regex /#sql-alter-[0-9a-f_\-]*/#sql-alter/
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '' $MYSQLD_DATADIR ./;
--error $error_code
eval ALTER TABLE `t#1` MODIFY COLUMN f2 INT,ALGORITHM=$algorithm;
DROP TABLE `t#2`, `t#1`;

--echo # Drop referenced index and modify column
CREATE TABLE `t#1`(f1 INT, f2 INT, PRIMARY KEY(f1), KEY(f2))ENGINE=InnoDB;
CREATE TABLE `t#2`(f1 INT, FOREIGN KEY(f1) REFERENCES `t#1`(f2) ON UPDATE CASCADE)ENGINE=InnoDB;
SET FOREIGN_KEY_CHECKS=0;

replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE `t#1` DROP INDEX f2,ALGORITHM=$algorithm;
SET FOREIGN_KEY_CHECKS=1;

--replace_regex /#sql-alter-[0-9a-f_\-]*/#sql-alter/
replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '' $MYSQLD_DATADIR ./;
--error $error_code
eval ALTER TABLE `t#2` MODIFY COLUMN f1 INT NOT NULL,ALGORITHM=$algorithm;
DROP TABLE `t#2`, `t#1`;

--echo # Self referential modifying column
CREATE TABLE t1(f1 INT, f2 INT, index(f2), foreign key(f1) references t1(f2) ON UPDATE CASCADE)engine=innodb;

replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t1 MODIFY COLUMN f2 INT NOT NULL,ALGORITHM=$algorithm;

replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t1 MODIFY COLUMN f1 INT NOT NULL,ALGORITHM=$algorithm;

replace_result ,ALGORITHM=COPY '' ,ALGORITHM=INPLACE '';
eval ALTER TABLE t1 MODIFY COLUMN f1 INT,ALGORITHM=$algorithm;
DROP TABLE t1;