--source include/have_innodb.inc
--source include/count_sessions.inc
--source include/default_charset.inc

--echo #
--echo # Bug #19027905 ASSERT RET.SECOND DICT_CREATE_FOREIGN_CONSTRAINTS_LOW
--echo # DICT_CREATE_FOREIGN_CONSTR
--echo #

create table t1 (f1 int primary key) engine=InnoDB;
--error ER_CANT_CREATE_TABLE
create table t2 (f1 int primary key,
constraint c1 foreign key (f1) references t1(f1),
constraint c1 foreign key (f1) references t1(f1)) engine=InnoDB;
create table t2 (f1 int primary key,
   constraint c1 foreign key (f1) references t1(f1)) engine=innodb;

--error ER_CANT_CREATE_TABLE
alter table t2 add constraint c1 foreign key (f1) references t1(f1);

set foreign_key_checks = 0;
--error ER_DUP_CONSTRAINT_NAME
alter table t2 add constraint c1 foreign key (f1) references t1(f1);

drop table t2, t1;

--echo #
--echo # Bug #20031243 CREATE TABLE FAILS TO CHECK IF FOREIGN KEY COLUMN
--echo # NULL/NOT NULL MISMATCH
--echo #

set foreign_key_checks = 1;
show variables like 'foreign_key_checks';

CREATE TABLE t1
(a INT NOT NULL,
 b INT NOT NULL,
 INDEX idx(a)) ENGINE=InnoDB;

CREATE TABLE t2
(a INT KEY,
 b INT,
 INDEX ind(b),
 FOREIGN KEY (b) REFERENCES t1(a) ON DELETE CASCADE ON UPDATE CASCADE)
 ENGINE=InnoDB;

show create table t1;
show create table t2;

INSERT INTO t1 VALUES (1, 80);
INSERT INTO t1 VALUES (2, 81);
INSERT INTO t1 VALUES (3, 82);
INSERT INTO t1 VALUES (4, 83);
INSERT INTO t1 VALUES (5, 84);

INSERT INTO t2 VALUES (51, 1);
INSERT INTO t2 VALUES (52, 2);
INSERT INTO t2 VALUES (53, 3);
INSERT INTO t2 VALUES (54, 4);
INSERT INTO t2 VALUES (55, 5);

SELECT a, b FROM t1 ORDER BY a;
SELECT a, b FROM t2 ORDER BY a;

--error ER_NO_REFERENCED_ROW_2
INSERT INTO t2 VALUES (56, 6);

ALTER TABLE t1 CHANGE a id INT;

SELECT id, b FROM t1 ORDER BY id;
SELECT a, b FROM t2 ORDER BY a;

--echo # Operations on child table
--error ER_NO_REFERENCED_ROW_2
INSERT INTO t2 VALUES (56, 6);
--error ER_NO_REFERENCED_ROW_2
UPDATE t2 SET b = 99 WHERE a = 51;
DELETE FROM t2 WHERE a = 53;
SELECT id, b FROM t1 ORDER BY id;
SELECT a, b FROM t2 ORDER BY a;

--echo # Operations on parent table
DELETE FROM t1 WHERE id = 1;
UPDATE t1 SET id = 50 WHERE id = 5;
SELECT id, b FROM t1 ORDER BY id;
SELECT a, b FROM t2 ORDER BY a;

DROP TABLE t2, t1;

--echo #
--echo # bug#25126722 FOREIGN KEY CONSTRAINT NAME IS NULL AFTER RESTART
--echo # base bug#24818604 [GR]
--echo #

CREATE TABLE t1 (c1 INT PRIMARY KEY) ENGINE=InnoDB;
CREATE TABLE t2 (c1 INT PRIMARY KEY, FOREIGN KEY (c1) REFERENCES t1(c1))
ENGINE=InnoDB;

INSERT INTO t1 VALUES (1);
INSERT INTO t2 VALUES (1);

SELECT unique_constraint_name FROM information_schema.referential_constraints
WHERE table_name = 't2';

--source include/restart_mysqld.inc

SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;

SELECT unique_constraint_name FROM information_schema.referential_constraints
WHERE table_name = 't2';

SELECT * FROM t1;

SELECT unique_constraint_name FROM information_schema.referential_constraints
WHERE table_name = 't2';

DROP TABLE t2;
DROP TABLE t1;

#
# MDEV-12669 Circular foreign keys cause a loop and OOM upon LOCK TABLE
#
SET FOREIGN_KEY_CHECKS=0;
CREATE TABLE staff (
  staff_id TINYINT UNSIGNED NOT NULL AUTO_INCREMENT,
  store_id TINYINT UNSIGNED NOT NULL,
  PRIMARY KEY  (staff_id),
  KEY idx_fk_store_id (store_id),
  CONSTRAINT fk_staff_store FOREIGN KEY (store_id) REFERENCES store (store_id) ON DELETE RESTRICT ON UPDATE CASCADE
) ENGINE=InnoDB;
CREATE TABLE store (
  store_id TINYINT UNSIGNED NOT NULL AUTO_INCREMENT,
  manager_staff_id TINYINT UNSIGNED NOT NULL,
  PRIMARY KEY  (store_id),
  UNIQUE KEY idx_unique_manager (manager_staff_id),
  CONSTRAINT fk_store_staff FOREIGN KEY (manager_staff_id) REFERENCES staff (staff_id) ON DELETE RESTRICT ON UPDATE CASCADE
) ENGINE=InnoDB;

LOCK TABLE staff WRITE;
UNLOCK TABLES;
DROP TABLES staff, store;

SET FOREIGN_KEY_CHECKS=1;

--echo #
--echo # MDEV-17531 Crash in RENAME TABLE with FOREIGN KEY and FULLTEXT INDEX
--echo #

--disable_query_log
call mtr.add_suppression("InnoDB: Possible reasons:");
call mtr.add_suppression("InnoDB: \\([12]\\) Table ");
call mtr.add_suppression("InnoDB: If table `test`\\.`t2` is a temporary table");
call mtr.add_suppression("InnoDB: Cannot delete/update rows with cascading foreign key constraints that exceed max depth of 15\\.");
--enable_query_log

CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
CREATE DATABASE best default character set latin1;
CREATE TABLE t3 (a INT PRIMARY KEY,
CONSTRAINT t2_ibfk_1 FOREIGN KEY (a) REFERENCES t1(a)) ENGINE=InnoDB;
CREATE TABLE best.t2 (a INT PRIMARY KEY, b TEXT, FULLTEXT INDEX(b),
FOREIGN KEY (a) REFERENCES test.t1(a)) ENGINE=InnoDB;
--replace_regex /Table '.*t2'/Table 't2'/
--error ER_TABLE_EXISTS_ERROR
RENAME TABLE best.t2 TO test.t2;
SHOW CREATE TABLE best.t2;
DROP DATABASE best;

--echo #
--echo # MDEV-17541 KILL QUERY during lock wait in FOREIGN KEY check hangs
--echo #
connect (con1, localhost, root,,);
INSERT INTO t1 SET a=1;
BEGIN;
DELETE FROM t1;

connection default;
let $ID= `SELECT @id := CONNECTION_ID()`;
send INSERT INTO t3 SET a=1;

connection con1;
# Check that the above SELECT is blocked
let $wait_condition=
  select count(*) = 1 from information_schema.processlist
  where state = 'update' and info = 'INSERT INTO t3 SET a=1';
--source include/wait_condition.inc
let $ignore= `SELECT @id := $ID`;
kill query @id;

connection default;
--error ER_QUERY_INTERRUPTED
reap;

connection con1;
ROLLBACK;
connection default;
disconnect con1;

DROP TABLE t3,t1;

--echo #
--echo # MDEV-18222 InnoDB: Failing assertion: heap->magic_n == MEM_BLOCK_MAGIC_N
--echo # or ASAN heap-use-after-free in dict_foreign_remove_from_cache upon CHANGE COLUMN
--echo #
CREATE TABLE t1 (a INT, UNIQUE(a), KEY(a)) ENGINE=InnoDB;
ALTER TABLE t1 ADD FOREIGN KEY (a) REFERENCES t1 (a);
SET SESSION FOREIGN_KEY_CHECKS = OFF;
ALTER TABLE t1 CHANGE COLUMN a a TIME NOT NULL;
ALTER TABLE t1 ADD pk INT NOT NULL AUTO_INCREMENT PRIMARY KEY;
ALTER TABLE t1 CHANGE COLUMN a b TIME;
SET SESSION FOREIGN_KEY_CHECKS = ON;
DROP TABLE t1;

--echo #
--echo # MDEV-18256 InnoDB: Failing assertion: heap->magic_n == MEM_BLOCK_MAGIC_N
--echo # upon DROP FOREIGN KEY
--echo #
CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
CREATE TABLE t2 (b INT PRIMARY KEY, FOREIGN KEY fk1 (b) REFERENCES t1 (a))
ENGINE=InnoDB;
ALTER TABLE t2 DROP FOREIGN KEY fk1, DROP FOREIGN KEY fk1;
DROP TABLE t2, t1;

CREATE TABLE t1 (f VARCHAR(256)) ENGINE=InnoDB;
SET SESSION FOREIGN_KEY_CHECKS = OFF;
ALTER TABLE t1 ADD FOREIGN KEY (f) REFERENCES non_existing_table (x);
SET SESSION FOREIGN_KEY_CHECKS = ON;
ALTER TABLE t1 ADD FULLTEXT INDEX ft1 (f);
ALTER TABLE t1 ADD FULLTEXT INDEX ft2 (f);
DROP TABLE t1;

CREATE TABLE t1 (f VARCHAR(256), FTS_DOC_ID BIGINT UNSIGNED PRIMARY KEY)
ENGINE=InnoDB;
SET SESSION FOREIGN_KEY_CHECKS = OFF;
ALTER TABLE t1 ADD FOREIGN KEY (f) REFERENCES non_existing_table (x);
SET SESSION FOREIGN_KEY_CHECKS = ON;
ALTER TABLE t1 ADD FULLTEXT INDEX ft1 (f);
ALTER TABLE t1 ADD FULLTEXT INDEX ft2 (f);
DROP TABLE t1;

--echo #
--echo # MDEV-18630 Conditional jump or move depends on uninitialised value
--echo # in ib_push_warning / dict_create_foreign_constraints_low
--echo #
CREATE TABLE t1 (a INT) ENGINE=InnoDB;
--error ER_CANT_CREATE_TABLE
ALTER IGNORE TABLE t1 ADD FOREIGN KEY (a) REFERENCES t2 (b);
SHOW WARNINGS;
DROP TABLE t1;

--echo #
--echo # MDEV-18139 ALTER IGNORE ... ADD FOREIGN KEY causes bogus error
--echo #
CREATE TABLE t1 (f1 INT, f2 INT, f3 INT, KEY(f1)) ENGINE=InnoDB;
CREATE TABLE t2 (f INT, KEY(f)) ENGINE=InnoDB;
ALTER TABLE t1 ADD FOREIGN KEY (f2) REFERENCES t2 (f);
ALTER IGNORE TABLE t1 ADD FOREIGN KEY (f3) REFERENCES t1 (f1);
DROP TABLE t1, t2;

# MDEV-19092 Server crash when renaming the column when
# FOREIGN_KEY_CHECKS is disabled
CREATE TABLE t1 (a INT, b INT, KEY idx(a)) ENGINE=InnoDB;
SET FOREIGN_KEY_CHECKS= OFF;
ALTER TABLE t1 ADD FOREIGN KEY (a) REFERENCES tx(x);
ALTER TABLE t1 DROP KEY idx;
ALTER TABLE t1 CHANGE a c INT;
# Cleanup
DROP TABLE t1;

CREATE TABLE t1 (f1 INT, f2 INT, f3 INT, KEY idx(f1)) ENGINE=InnoDB;
ALTER TABLE t1 ADD FOREIGN KEY (f2) REFERENCES t1 (f1);
ALTER TABLE t1 ADD COLUMN f INT;
SET FOREIGN_KEY_CHECKS= OFF;
ALTER TABLE t1 DROP KEY idx;
ALTER TABLE t1 ADD KEY idx (f1);
SET FOREIGN_KEY_CHECKS= ON;
ALTER TABLE t1 DROP f3;
ALTER TABLE t1 CHANGE f f3 INT;
# Cleanup
DROP TABLE t1;

SET FOREIGN_KEY_CHECKS=1;

--echo #
--echo # Bug #19471516 SERVER CRASHES WHEN EXECUTING ALTER TABLE
--echo # ADD FOREIGN KEY
--echo #

CREATE TABLE `department` (`department_id` INT, `department_people_fk` INT,
PRIMARY KEY (`department_id`)) engine=innodb;

CREATE TABLE `title` (`title_id` INT, `title_manager_fk` INT,
`title_reporter_fk` INT, PRIMARY KEY (`title_id`)) engine=innodb;

CREATE TABLE `people` (`people_id` INT, PRIMARY KEY (`people_id`)) engine=innodb;

ALTER TABLE `department` ADD FOREIGN KEY (`department_people_fk`) REFERENCES
`people` (`people_id`);

ALTER TABLE `title` ADD FOREIGN KEY (`title_manager_fk`) REFERENCES `people`
(`people_id`);

ALTER TABLE `title` ADD FOREIGN KEY (`title_reporter_fk`) REFERENCES `people`
(`people_id`);

drop table title, department, people;

#
# FK and prelocking:
# child table accesses (reads and writes) wait for locks.
#
create table t1 (a int primary key, b int) engine=innodb;
create table t2 (c int primary key, d int,
  foreign key (d) references t1 (a) on update cascade) engine=innodb;
insert t1 values (1,1),(2,2),(3,3);
insert t2 values (4,1),(5,2),(6,3);
flush table t2 with read lock; # this takes MDL_SHARED_NO_WRITE
connect (con1,localhost,root);
--error ER_ROW_IS_REFERENCED_2
delete from t1 where a=2;
send update t1 set a=10 where a=1;
connection default;
let $wait_condition= select 1 from information_schema.processlist where state='Waiting for table metadata lock';
source include/wait_condition.inc;
unlock tables;
connection con1;
reap;
connection default;
lock table t2 write; # this takes MDL_SHARED_NO_READ_WRITE
connection con1;
send delete from t1 where a=2;
connection default;
let $wait_condition= select 1 from information_schema.processlist where state='Waiting for table metadata lock';
source include/wait_condition.inc;
unlock tables;
connection con1;
--error ER_ROW_IS_REFERENCED_2
reap;
connection default;
unlock tables;
disconnect con1;

# but privileges should not be checked
create user foo;
grant select,update on test.t1 to foo;
connect(foo,localhost,foo);
update t1 set a=30 where a=3;
disconnect foo;
connection default;
select * from t2;
drop table t2, t1;
drop user foo;

--echo #
--echo # MDEV-17595 - Server crashes in copy_data_between_tables or
--echo #              Assertion `thd->transaction.stmt.is_empty() ||
--echo #              (thd->state_flags & Open_tables_state::BACKUPS_AVAIL)'
--echo #              fails in close_tables_for_reopen upon concurrent
--echo #              ALTER TABLE and FLUSH
--echo #
CREATE TABLE t1 (a INT, KEY(a)) ENGINE=InnoDB;
INSERT INTO t1 VALUES(1),(2);
CREATE TABLE t2 (b INT, KEY(b)) ENGINE=InnoDB;
INSERT INTO t2 VALUES(2);
ALTER TABLE t2 ADD FOREIGN KEY(b) REFERENCES t1(a), LOCK=EXCLUSIVE;
DROP TABLE t2, t1;

#
# MDEV-22180 Planner opens unnecessary tables when updated table is referenced by foreign keys
#

create table t1 (pk int primary key, data int) engine=innodb;
insert t1 values (1,1),(2,2),(3,3);
create table t2 (t1_pk int, foreign key (t1_pk) references t1 (pk)) engine=innodb;
insert t2 values (1),(2);
error ER_NO_REFERENCED_ROW_2;
insert t2 values (10);
flush tables;
flush status;
# with ON UPDATE RESTRICT child tables are not opened
update t1 set data=10 where pk+1>10;
show status like '%opened_tab%';
flush tables;
flush status;
# neither are parent tables
update t2 set t1_pk=11 where t1_pk+1>10;
show status like '%opened_tab%';
# under LOCK TABLES
flush tables;
flush status;
lock tables t1 write;
show status like '%opened_tab%';
insert t1 values (4,4);
show status like '%opened_tab%';
unlock tables;
delimiter |;
create function foo() returns int
begin
  insert t1 values (5,5);
  return 5;
end|
delimiter ;|
flush tables;
flush status;
select foo();
show status like '%opened_tab%';
drop function foo;
drop table t2, t1;

CREATE TABLE t1 (pk INT, a INT, PRIMARY KEY (pk)) ENGINE=InnoDB;
XA START 'xid';
INSERT INTO t1 VALUES (1,2);
--error ER_XAER_RMFAIL
CREATE TABLE x AS SELECT * FROM t1;
--connect (con1,localhost,root,,test)
SET foreign_key_checks= OFF, innodb_lock_wait_timeout= 1;
SET lock_wait_timeout=5;
--error ER_LOCK_WAIT_TIMEOUT
ALTER TABLE t1 ADD FOREIGN KEY f (a) REFERENCES t1 (pk), LOCK=EXCLUSIVE;# Cleanup
--disconnect con1
--connection default
XA END 'xid';
XA ROLLBACK 'xid';
DROP TABLE t1;

CREATE TABLE t1 (pk INT PRIMARY KEY,
                 f1 VARCHAR(10), f2 VARCHAR(10),
		 f3 VARCHAR(10), f4 VARCHAR(10),
		 f5 VARCHAR(10), f6 VARCHAR(10),
		 f7 VARCHAR(10), f8 VARCHAR(10),
		 INDEX(f1), INDEX(f2), INDEX(f3), INDEX(f4),
		 INDEX(f5), INDEX(f6), INDEX(f7), INDEX(f8)) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1, 'mariadb', 'mariadb', 'mariadb', 'mariadb',
                       'mariadb', 'mariadb', 'mariadb', 'mariadb'),
                      (2, 'mariadb', 'mariadb', 'mariadb', 'mariadb',
                       'mariadb', 'mariadb', 'mariadb', 'mariadb'),
                      (3, 'innodb', 'innodb', 'innodb', 'innodb',
                       'innodb', 'innodb', 'innodb', 'innodb');
ALTER TABLE t1 ADD FOREIGN KEY (f1) REFERENCES t1 (f2) ON DELETE SET NULL;
START TRANSACTION;
DELETE FROM t1 where f1='mariadb';
SELECT * FROM t1;
ROLLBACK;

ALTER TABLE t1 ADD FOREIGN KEY (f3) REFERENCES t1 (f4) ON DELETE CASCADE;

START TRANSACTION;
DELETE FROM t1 where f3='mariadb';
SELECT * FROM t1;
ROLLBACK;

ALTER TABLE t1 ADD FOREIGN KEY (f5) REFERENCES t1 (f6) ON UPDATE SET NULL;
--error ER_ROW_IS_REFERENCED_2
UPDATE t1 SET f6='update';

ALTER TABLE t1 ADD FOREIGN KEY (f7) REFERENCES t1 (f8) ON UPDATE CASCADE;
--error ER_ROW_IS_REFERENCED_2
UPDATE t1 SET f6='cascade';
DROP TABLE t1;
#
# End of 10.1 tests
#

--echo # Start of 10.2 tests

--echo #
--echo # MDEV-13246 Stale rows despite ON DELETE CASCADE constraint
--echo #

CREATE TABLE users (
  id int unsigned AUTO_INCREMENT PRIMARY KEY,
  name varchar(32) NOT NULL DEFAULT ''
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE matchmaking_groups (
  id bigint unsigned AUTO_INCREMENT PRIMARY KEY,
  host_user_id int unsigned NOT NULL UNIQUE,
  CONSTRAINT FOREIGN KEY (host_user_id) REFERENCES users (id)
  ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE matchmaking_group_users (
  matchmaking_group_id bigint unsigned NOT NULL,
  user_id int unsigned NOT NULL,
  PRIMARY KEY (matchmaking_group_id,user_id),
  UNIQUE KEY user_id (user_id),
  CONSTRAINT FOREIGN KEY (matchmaking_group_id)
  REFERENCES matchmaking_groups (id) ON DELETE CASCADE ON UPDATE CASCADE,
  CONSTRAINT FOREIGN KEY (user_id)
  REFERENCES users (id) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE matchmaking_group_maps (
  matchmaking_group_id bigint unsigned NOT NULL,
  map_id tinyint unsigned NOT NULL,
  PRIMARY KEY (matchmaking_group_id,map_id),
  CONSTRAINT FOREIGN KEY (matchmaking_group_id)
  REFERENCES matchmaking_groups (id) ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

INSERT INTO users VALUES (NULL,'foo'),(NULL,'bar');
INSERT INTO matchmaking_groups VALUES (10,1),(11,2);
INSERT INTO matchmaking_group_users VALUES (10,1),(11,2);
INSERT INTO matchmaking_group_maps VALUES (10,55),(11,66);

BEGIN;
UPDATE users SET name = 'qux' WHERE id = 1;

connect (con1,localhost,root);
--connection con1
SET innodb_lock_wait_timeout= 1;
DELETE FROM matchmaking_groups WHERE id = 10;

--connection default
COMMIT;
--sorted_result
SELECT * FROM matchmaking_group_users WHERE matchmaking_group_id NOT IN (SELECT id FROM matchmaking_groups);
--sorted_result
SELECT * FROM matchmaking_group_maps WHERE matchmaking_group_id NOT IN (SELECT id FROM matchmaking_groups);
--sorted_result
SELECT * FROM users;

DROP TABLE
matchmaking_group_maps, matchmaking_group_users, matchmaking_groups, users;

--echo #
--echo # MDEV-13331 FK DELETE CASCADE does not honor innodb_lock_wait_timeout
--echo #

CREATE TABLE t1 (id INT NOT NULL PRIMARY KEY) ENGINE=InnoDB;

CREATE TABLE t2 (
  id INT NOT NULL PRIMARY KEY,
  ref_id INT NOT NULL DEFAULT 0,
  f INT NULL,
  FOREIGN KEY (ref_id) REFERENCES t1 (id) ON DELETE CASCADE
) ENGINE=InnoDB;

INSERT INTO t1 VALUES (1),(2);
INSERT INTO t2 VALUES (1,1,10),(2,2,20);

SHOW CREATE TABLE t2;

--connection con1
BEGIN;
UPDATE t2 SET f = 11 WHERE id = 1;

--connection default
SET innodb_lock_wait_timeout= 1;
--error ER_LOCK_WAIT_TIMEOUT
DELETE FROM t1 WHERE id = 1;

--connection con1
COMMIT;

--connection default
SELECT * FROM t2;
DELETE FROM t1 WHERE id = 1;
SELECT * FROM t2;
DROP TABLE t2, t1;

--echo #
--echo # MDEV-15199 Referential integrity broken in ON DELETE CASCADE
--echo #

CREATE TABLE member (id int AUTO_INCREMENT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO member VALUES (1);
CREATE TABLE address (
  id int AUTO_INCREMENT PRIMARY KEY,
  member_id int NOT NULL,
  KEY address_FI_1 (member_id),
  CONSTRAINT address_FK_1 FOREIGN KEY (member_id) REFERENCES member (id)
  ON DELETE CASCADE ON UPDATE CASCADE
) ENGINE=InnoDB;

INSERT INTO address VALUES (2,1);
CREATE TABLE payment_method (
  id int AUTO_INCREMENT PRIMARY KEY,
  member_id int NOT NULL,
  cardholder_address_id int DEFAULT NULL,
  KEY payment_method_FI_1 (member_id),
  KEY payment_method_FI_2 (cardholder_address_id),
  CONSTRAINT payment_method_FK_1 FOREIGN KEY (member_id) REFERENCES member (id) ON DELETE CASCADE ON UPDATE CASCADE,
  CONSTRAINT payment_method_FK_2 FOREIGN KEY (cardholder_address_id) REFERENCES address (id) ON DELETE SET NULL ON UPDATE CASCADE
) ENGINE=InnoDB;

INSERT INTO payment_method VALUES (3,1,2);

BEGIN;
UPDATE member SET id=42;
SELECT * FROM member;
SELECT * FROM address;
SELECT * FROM payment_method;
DELETE FROM member;
COMMIT;
SELECT * FROM member;
SELECT * FROM address;
SELECT * FROM payment_method;

DROP TABLE payment_method,address,member;

--echo #
--echo # Bug #26958695 INNODB NESTED STORED FIELD WITH CONSTRAINT KEY
--echo # PRODUCE BROKEN TABLE (no bug in MariaDB)
--echo #
create table t1(f1 int,f2 int, primary key(f1), key(f2, f1))engine=innodb;
create table t2(f1 int, f2 int as (2) stored, f3 int as (f2) stored,
                foreign key(f1) references t1(f2) on update set NULL)
engine=innodb;
insert into t1 values(1, 1);
insert into t2(f1) values(1);
drop table t2, t1;

#
# MDEV-12669 Circular foreign keys cause a loop and OOM upon LOCK TABLE
#
SET FOREIGN_KEY_CHECKS=0;
CREATE TABLE staff (
  staff_id TINYINT UNSIGNED NOT NULL AUTO_INCREMENT,
  store_id TINYINT UNSIGNED NOT NULL,
  PRIMARY KEY  (staff_id),
  KEY idx_fk_store_id (store_id),
  CONSTRAINT fk_staff_store FOREIGN KEY (store_id) REFERENCES store (store_id) ON DELETE RESTRICT ON UPDATE CASCADE
) ENGINE=InnoDB;
CREATE TABLE store (
  store_id TINYINT UNSIGNED NOT NULL AUTO_INCREMENT,
  manager_staff_id TINYINT UNSIGNED NOT NULL,
  PRIMARY KEY  (store_id),
  UNIQUE KEY idx_unique_manager (manager_staff_id),
  CONSTRAINT fk_store_staff FOREIGN KEY (manager_staff_id) REFERENCES staff (staff_id) ON DELETE RESTRICT ON UPDATE CASCADE
) ENGINE=InnoDB;

LOCK TABLE staff WRITE;
UNLOCK TABLES;
DROP TABLES staff, store;
SET FOREIGN_KEY_CHECKS=1;

--echo #
--echo # MDEV-17541 KILL QUERY during lock wait in FOREIGN KEY check hangs
--echo #

CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
CREATE TABLE t2 (a INT PRIMARY KEY, FOREIGN KEY (a) REFERENCES t1(a))
ENGINE=InnoDB;

connection con1;
INSERT INTO t1 SET a=1;
BEGIN;
DELETE FROM t1;

connection default;
let $ID= `SELECT @id := CONNECTION_ID()`;
send INSERT INTO t2 SET a=1;

connection con1;
let $wait_condition=
  select count(*) = 1 from information_schema.processlist
  where state = 'update' and info = 'INSERT INTO t2 SET a=1';
--source include/wait_condition.inc
let $ignore= `SELECT @id := $ID`;
kill query @id;

connection default;
--error ER_QUERY_INTERRUPTED
reap;

connection con1;
ROLLBACK;
connection default;

DROP TABLE t2,t1;

--echo #
--echo # MDEV-18272 InnoDB index corruption after failed DELETE CASCADE
--echo #
CREATE TABLE t1 (
  pk TINYINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
  a TINYINT UNSIGNED NOT NULL, b TINYINT UNSIGNED NOT NULL, KEY(b),
  CONSTRAINT FOREIGN KEY (a) REFERENCES t1 (b) ON DELETE CASCADE
) ENGINE=InnoDB;

INSERT INTO t1 (a,b) VALUES
(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),(0,0),
(0,1),(0,1),(1,0);
connection con1;
START TRANSACTION WITH CONSISTENT SNAPSHOT;

connection default;
DELETE IGNORE FROM t1 WHERE b = 1;

SELECT a FROM t1 FORCE INDEX(a);
# This would wrongly return the empty result if
# the "goto rollback_to_savept" in row_mysql_handle_errors() is reverted.
SELECT * FROM t1;
# Allow purge to continue by closing the read view.
disconnect con1;

# Wait for purge. With the fix reverted, the server would crash here.
--source include/wait_all_purged.inc
CHECK TABLE t1;
DROP TABLE t1;
SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;

--echo #
--echo # MDEV-17187 table doesn't exist in engine after ALTER other tables
--echo # with CONSTRAINTs
--echo #

call mtr.add_suppression("\\[Warning\\] InnoDB: In ALTER TABLE `test`\\.`t2` has or is referenced in foreign key constraints which are not compatible with the new table definition.");

set foreign_key_checks=on;
create table t1 (id int not null primary key) engine=innodb;
create table t2 (id int not null primary key, fid int not null,
CONSTRAINT fk_fid FOREIGN KEY (fid) REFERENCES t1 (id))engine=innodb;

insert into t1 values (1), (2), (3);
insert into t2 values (1, 1), (2, 1), (3, 2);

set foreign_key_checks=off;
alter table t2 drop index fk_fid;
set foreign_key_checks=on;

--error ER_ROW_IS_REFERENCED_2
delete from t1 where id=2;
--error ER_NO_REFERENCED_ROW_2
insert into t2 values(4, 99);

select * from t1;
select * from t2;

set foreign_key_checks=off;
delete from t1 where id=2;
insert into t2 values(4, 99);
set foreign_key_checks=on;

select * from t1;
select * from t2;

show create table t1;
show create table t2;

# Optional: test DROP TABLE without any prior ha_innobase::open().
# This was tested manually, but it would cause --embedded to skip the test,
# and the restart would significantly increase the running time.
# --source include/restart_mysqld.inc

--error ER_ROW_IS_REFERENCED_2
drop table t1,t2;
--error ER_BAD_TABLE_ERROR
drop table t1,t2;

--echo #
--echo # MDEV-22934 Table disappear after two alter table command
--echo #
CREATE TABLE t1(f1 INT NOT NULL AUTO_INCREMENT,
		f2 INT NOT NULL,
		PRIMARY KEY (f1), INDEX (f2))ENGINE=InnoDB;
CREATE TABLE t2(f1 INT NOT NULL,
		f2 INT NOT NULL, f3 INT NOT NULL,
		PRIMARY KEY(f1, f2), UNIQUE KEY(f2),
CONSTRAINT `t2_ibfk_1` FOREIGN KEY (f2) REFERENCES t1(f2) ON DELETE CASCADE,
CONSTRAINT `t2_ibfk_2` FOREIGN KEY (f1) REFERENCES t1(f1) ON DELETE CASCADE
) ENGINE=InnoDB;

SET FOREIGN_KEY_CHECKS=0;
ALTER TABLE t2 DROP PRIMARY KEY, ADD PRIMARY KEY(f3), ALGORITHM=INPLACE;
ALTER TABLE t2 DROP INDEX `f2`, ALGORITHM=COPY;
SHOW CREATE TABLE t2;
--error ER_TABLE_EXISTS_ERROR
CREATE TABLE t2 (f1 INT NOT NULL)ENGINE=InnoDB;
DROP TABLE t2, t1;

--echo #
--echo # MDEV-23685 SIGSEGV on ADD FOREIGN KEY after failed attempt
--echo # to create unique key on virtual column
--echo #
CREATE TABLE t1 (pk INT PRIMARY KEY, a INT, b INT AS (a)) ENGINE=InnODB;

INSERT INTO t1 (pk,a) VALUES (1,10),(2,10);
--error ER_DUP_ENTRY
ALTER TABLE t1 ADD UNIQUE INDEX ind9 (b), LOCK=SHARED;
SET FOREIGN_KEY_CHECKS= 0;
ALTER TABLE t1 ADD FOREIGN KEY (a) REFERENCES t1 (pk);
DROP TABLE t1;
SET FOREIGN_KEY_CHECKS= 1;

--echo #
--echo # MDEV-23455 Hangs + Sig11 in unknown location(s) due to single complex FK query
--echo #
let $constr_prefix= aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;
let $fk_ref=        xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx;
let $fk_field=      yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy;
let $constr_count= 200; # each 100 constrs is 1 sec of test execution
let $i= 0;

while ($i < $constr_count)
{
  let $p= $constr_prefix$i;
  let $constr= CONSTRAINT $p FOREIGN KEY ($fk_field) REFERENCES t1($fk_ref) ON UPDATE SET NULL;
  if ($i)
  {
    let $constrs= $constrs, $constr;
  }
  if (!$i)
  {
    let $constrs= $constr;
  }
  inc $i;
}
--disable_query_log
--echo Parsing foreign keys 1...
--error ER_CANT_CREATE_TABLE
eval create table t0($fk_field int, $constrs) engine innodb;
--echo Parsing foreign keys 2...
--error ER_CANT_CREATE_TABLE
eval create table t1($fk_field int, $constrs) engine innodb;
--echo Parsing foreign keys 3...
--error ER_CANT_CREATE_TABLE
eval create table t1($fk_ref int, $fk_field int, $constrs) engine innodb;
--echo Parsing foreign keys 4...
eval create table t1($fk_ref int primary key, $fk_field int, $constrs) engine innodb;
drop table t1;
--enable_query_log

--echo # End of 10.2 tests

--source include/wait_until_count_sessions.inc