--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;

#
# 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 # End of 10.2 tests

--source include/wait_until_count_sessions.inc