#################
# Test RESTRICT #
#################
create table parent(
id int,
KEY_TYPE (id)
) engine innodb;
create table child(
parent_id int,
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time(sys_start, sys_end),
foreign key(parent_id) references parent(id)
on delete restrict
on update restrict
) engine innodb with system versioning;
insert into parent values(1);
insert into child values(1);
delete from parent where id = 1;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY (`parent_id`) REFERENCES `parent` (`id`))
delete from child where parent_id = 1;
delete from parent where id = 1;
insert into parent values(1);
insert into child values(1);
update parent set id=id+1;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY (`parent_id`) REFERENCES `parent` (`id`))
delete from child;
update parent set id=id+1;
select * from child for system_time all;
parent_id
1
1
drop table child;
drop table parent;
##############################################
# Test when clustered index is a foreign key #
##############################################
create table parent(
id int(10) unsigned,
KEY_TYPE (id)
) engine innodb;
create table child(
parent_id int(10) unsigned primary key,
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time(sys_start, sys_end),
foreign key(parent_id) references parent(id)
) engine innodb with system versioning;
insert into parent values(1);
insert into child values(1);
delete from parent where id = 1;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY (`parent_id`) REFERENCES `parent` (`id`))
drop table child;
drop table parent;
################
# Test CASCADE #
################
create table parent(
id int,
KEY_TYPE (id)
) engine innodb;
create table child(
parent_id int,
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time(sys_start, sys_end),
foreign key(parent_id) references parent(id)
on delete cascade
on update cascade
) engine innodb with system versioning;
insert into parent values(1);
insert into child values(1);
delete from parent where id = 1;
select * from child;
parent_id
select * from child for system_time all;
parent_id
1
insert into parent values(1);
insert into child values(1);
update parent set id = id + 1;
select * from child;
parent_id
2
select * from child for system_time all;
parent_id
1
1
2
drop table child;
drop table parent;
create or replace table parent (
id int,
KEY_TYPE(id),
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time(sys_start, sys_end)
) with system versioning
engine innodb;
create or replace table child (
x int,
parent_id int not null,
constraint `parent-fk`
  foreign key (parent_id) references parent (id)
on delete cascade
on update restrict
)
engine innodb;
insert into parent (id) values (2);
insert into child (x, parent_id) values (2, 2);
delete from parent;
select * from child;
x	parent_id
drop table child;
drop table parent;
create or replace table parent (
id int,
KEY_TYPE(id)
)
engine innodb;
create or replace table child (
id int primary key,
parent_id int not null,
row_start SYS_DATATYPE as row start invisible,
row_end SYS_DATATYPE as row end invisible,
period for system_time(row_start, row_end),
constraint `parent-fk`
  foreign key (parent_id) references parent (id)
on delete cascade
on update restrict
) with system versioning
engine innodb;
insert into parent (id) values (3);
insert into child (id, parent_id) values (3, 3);
delete from parent;
select * from child;
id	parent_id
select *, check_row(row_start, row_end) from child for system_time all;
id	parent_id	check_row(row_start, row_end)
3	3	HISTORICAL ROW
drop table child;
drop table parent;
#################
# Test SET NULL #
#################
create table parent(
id int,
KEY_TYPE (id)
) engine innodb;
create or replace table child(
parent_id int,
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time(sys_start, sys_end),
foreign key(parent_id) references parent(id)
on delete set null
on update set null
) engine innodb with system versioning;
insert into parent values(1);
insert into child values(1);
delete from child;
insert into child values(1);
delete from parent where id = 1;
select * from child;
parent_id
NULL
select *, current_row(sys_end) as current_row from child for system_time all order by sys_end;
parent_id	current_row
1	0
1	0
NULL	1
delete from child;
insert into parent values(1);
insert into child values(1);
update parent set id= id + 1;
select * from child;
parent_id
NULL
select *, current_row(sys_end) as current_row from child for system_time all order by sys_end;
parent_id	current_row
1	0
1	0
NULL	0
1	0
NULL	1
drop table child;
drop table parent;
###########################
# Parent table is foreign #
###########################
create or replace table parent(
id int,
KEY_TYPE (id),
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time(sys_start, sys_end)
) engine innodb with system versioning;
create or replace table child(
parent_id int,
foreign key(parent_id) references parent(id)
) engine innodb;
insert into parent values(1);
insert into child values(1);
delete from parent;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY (`parent_id`) REFERENCES `parent` (`id`))
update parent set id=2;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY (`parent_id`) REFERENCES `parent` (`id`))
delete from child;
delete from parent;
insert into child values(1);
ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY (`parent_id`) REFERENCES `parent` (`id`))
insert into parent values(1);
insert into child values(1);
delete from parent;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY (`parent_id`) REFERENCES `parent` (`id`))
update parent set id=2;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY (`parent_id`) REFERENCES `parent` (`id`))
drop table child;
drop table parent;
###################
# crash on DELETE #
###################
create or replace table a (
cola int(10),
KEY_TYPE (cola),
v_cola int(10) as (cola mod 10) virtual,
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time(sys_start, sys_end)
) engine=innodb with system versioning;
create index v_cola on a (v_cola);
create or replace table b(
cola int(10),
v_cola int(10),
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time(sys_start, sys_end)
) engine=innodb with system versioning;
alter table b add constraint `v_cola_fk`
foreign key (v_cola) references a (v_cola);
insert into a(cola) values (12);
insert into b(cola, v_cola) values (10,2);
delete from a;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`b`, CONSTRAINT `v_cola_fk` FOREIGN KEY (`v_cola`) REFERENCES `a` (`v_cola`))
drop table b, a;
###############################################
# CASCADE UPDATE foreign not system versioned #
###############################################
create or replace table parent (
id smallint unsigned not null auto_increment,
value int unsigned not null,
primary key (id, value)
) engine = innodb;
create or replace table child (
id mediumint unsigned not null auto_increment primary key,
parent_id smallint unsigned not null,
parent_value int unsigned not null,
sys_start SYS_DATATYPE as row start invisible,
sys_end SYS_DATATYPE as row end invisible,
period for system_time(sys_start, sys_end),
constraint `fk_child_parent`
    foreign key (parent_id, parent_value) references parent (id, value)
on delete cascade
on update cascade
) engine = innodb with system versioning;
create or replace table subchild (
id int not null auto_increment primary key,
parent_id smallint unsigned not null,
parent_value int unsigned not null,
constraint `fk_subchild_child_parent`
    foreign key (parent_id, parent_value) references child (parent_id, parent_value)
on delete cascade
on update cascade
) engine=innodb;
insert into parent (value) values (23);
select id, value from parent into @id, @value;
Warnings:
Warning	1287	'<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
insert into child values (default, @id, @value);
insert into subchild values (default, @id, @value);
select parent_id from subchild;
parent_id
1
update parent set id = 11, value = value + 1;
select parent_id from subchild;
parent_id
11
select * from child;
id	parent_id	parent_value
1	11	24
delete from parent;
select count(*) from child;
count(*)
0
select * from child for system_time all;
id	parent_id	parent_value
1	1	23
1	11	24
select count(*) from subchild;
count(*)
0
drop table subchild, child, parent;
#
# MDEV-18057 Assertion `(node->state == 5) || (node->state == 6)' failed in row_upd_sec_step upon DELETE after UPDATE failed due to FK violation
#
create or replace table t1 (f1 int, key(f1)) engine=innodb;
create or replace table t2 (f2 int, foreign key (f2) references t1 (f1)) engine=innodb with system versioning;
set foreign_key_checks= off;
insert ignore into t2 values (1);
set foreign_key_checks= on;
update t2 set f2= 2;
ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`f2`) REFERENCES `t1` (`f1`))
delete from t2;
drop table t2, t1;
#
# MDEV-18879 Corrupted record inserted by FOREIGN KEY operation
#
SET timestamp = 1;
SET time_zone='+02:00';
SELECT now();
now()
1970-01-01 02:00:01
CREATE TABLE t1 (
pk INT UNSIGNED PRIMARY KEY,
f1 varchar(255)  CHARACTER SET ucs2,
f2 longtext CHARACTER SET ucs2,
f3 varchar(255),
f4 char(255),
f5 longtext CHARACTER SET ucs2,
f6 INT UNSIGNED,
f7 INT UNSIGNED,
f8 INT UNSIGNED,
f9 INT UNSIGNED,
f10 INT UNSIGNED,
f11 INT UNSIGNED,
f12 varchar(255) CHARACTER SET ucs2,
f13 char(255)  CHARACTER SET ucs2,
f14 char(255) CHARACTER SET ucs2,
f15 varchar(255),
f16 longtext,
f17 char(255)
) ENGINE=InnoDB WITH SYSTEM VERSIONING;
INSERT INTO t1 VALUES
(1, 'a', 'e', 'f', 'a', 'generate', 1, 2, 3, 4, 5, 6, 'main', 'against', 'b', 'u', 'explode', 'tomorrow'),
(2, REPEAT('a',127), 'f', 'k', 'game', 'g', 2, 3, 4, 5, 6, 7, REPEAT('o',222), 'oven', 'flower', REPEAT('r',120), 'l', 'g'),
(3, 'weekly', 'x', 'v', 'r', 'c', 3, 4, 5, 6, 7, 8, 'validity', 'y', 'h', 'oxygen', 'venture', 'uncertainty'),
(4, 'r', 't', REPEAT('b',153), 'modern', 'h', 4, 5, 6, 7, 8, 9, REPEAT('g',128), 'a', 'w', 'f', 'b', 'b'),
(5, 'h', 'y', REPEAT('v',107), 'knife', 'profession', 5, 6, 7, 8, 9, 0, 'infection', 'u', 'likelihood', REPEAT('n',149), 'folk', 'd'),
(6, 'g', 'violent', REPEAT('o',28), 'capital', 'p', 6, 7, 8, 9, 0, 1, 'w', 'patron', 'd', 'y', 'originally', 'k'),
(7, 'k', 'uncomfortable', REPEAT('v',248), 'y', 'link', 7, 8, 9, 0, 1, 2, REPEAT('j',204), 'j', 'statute', 'emphasis', 'u', 'water'),
(8, 'preparation', 'water', 'suck', 'silver', 'a', 8, 9, 0, 1, 2, 3, 'h', 'q', 'o', 't', 'k', 'y'),
(9, 'y', 'f', 'e', 'a', 'dawn', 9, 0, 1, 2, 3, 4, 'peak', 'parking', 'b', 't', 'timber', 'c'),
(10, REPEAT('h',78), 'apologize', 'direct', 'u', 'frankly', 0, 1, 2, 3, 4, 5, 'h', 'exhibit', 'f', 'd', 'effective', 'c'),
(11, 'i', 'h', 'a', 'y', 'u', 1, 2, 3, 4, 5, 6, 'l', 'b', 'm', 'respond', 'ideological', 'credibility');
CREATE TABLE t2 (
pk int primary key,
f char(255) CHARACTER SET ucs2,
key(f)
) ENGINE=InnoDB;
INSERT INTO t2 VALUES (1,'against'),(2,'q');
SET SQL_MODE= '';
SET timestamp = 2;
SELECT * INTO OUTFILE 't1.data' FROM t1;
SET timestamp = 3;
UPDATE t1 SET f13 = 'q';
SET timestamp = 4;
LOAD DATA INFILE 't1.data' REPLACE INTO TABLE t1;
Warnings:
Warning	1265	Data truncated for column 'f12' at row 2
Warning	1265	Data truncated for column 'f12' at row 4
Warning	1265	Data truncated for column 'f12' at row 7
SELECT * INTO OUTFILE 't1.data.2' FROM t1;
SET timestamp = 5;
LOAD DATA INFILE 't1.data.2' REPLACE INTO TABLE t1;
Warnings:
Warning	1265	Data truncated for column 'f1' at row 2
Warning	1265	Data truncated for column 'f12' at row 2
Warning	1265	Data truncated for column 'f12' at row 4
Warning	1265	Data truncated for column 'f12' at row 7
Warning	1265	Data truncated for column 'f1' at row 10
SELECT * INTO OUTFILE 't2.data' FROM t2;
SET timestamp = 6;
LOAD DATA INFILE 't2.data' REPLACE INTO TABLE t2;
SET FOREIGN_KEY_CHECKS = OFF;
ALTER TABLE t1 ADD FOREIGN KEY (f13) REFERENCES t2 (f) ON DELETE SET NULL;
SET timestamp = 7;
LOAD DATA INFILE 't1.data' REPLACE INTO TABLE t1;
Warnings:
Warning	1265	Data truncated for column 'f12' at row 2
Warning	1265	Data truncated for column 'f12' at row 4
Warning	1265	Data truncated for column 'f12' at row 7
SET FOREIGN_KEY_CHECKS = ON;
SET SESSION SQL_MODE= 'NO_BACKSLASH_ESCAPES';
SET timestamp = 8;
LOAD DATA INFILE 't1.data' REPLACE INTO TABLE t1;
Warnings:
Warning	1265	Data truncated for column 'f12' at row 2
Warning	1265	Data truncated for column 'f12' at row 4
Warning	1265	Data truncated for column 'f12' at row 7
SET timestamp = 9;
REPLACE INTO t2 SELECT * FROM t2;
DROP TABLE t1, t2;
set timestamp= default;
set time_zone='+00:00';
#
# MDEV-16210 FK constraints on versioned tables use historical rows, which may cause constraint violation
#
create or replace table t1 (a int, key(a)) engine innodb with system versioning;
create or replace table t2 (b int, foreign key (b) references t1(a)) engine innodb;
insert into t1 values (1),(2);
insert into t2 values (1);
# DELETE from referenced table is not allowed
delete from t1 where a = 1;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `t2_ibfk_1` FOREIGN KEY (`b`) REFERENCES `t1` (`a`))
drop tables t2, t1;
#
# MDEV-20812 Unexpected ER_ROW_IS_REFERENCED_2 or server crash in row_ins_foreign_report_err upon DELETE from versioned table with FK
#
create or replace table t1 (x int primary key) engine innodb;
create or replace table t2 (x int, foreign key (x) references t1(x)) engine innodb with system versioning;
set foreign_key_checks= off;
insert into t2 values (1), (1);
set foreign_key_checks= on;
# DELETE from foreign table is allowed
delete from t2;
drop tables t2, t1;
create or replace table t1 (a int, key(a)) engine innodb;
insert into t1 values (1);
create or replace table t2 (b int, foreign key (b) references t1(a)) engine innodb with system versioning;
insert into t2 values (1), (1);
# DELETE from foreign table is allowed
delete from t2;
drop tables t2, t1;
#
# MDEV-23644 Assertion on evaluating foreign referential action for self-reference in system versioned table
#
create table t1 (pk int primary key, f1 int,f2 int, f3 text,
key(f1), fulltext(f3), key(f3(10)),
foreign key (f2) references t1 (f1) on delete set null
) engine=innodb with system versioning;
insert into t1 values (1, 8, 8, 'SHORT'), (2, 8, 8, repeat('LONG', 8071));
delete from t1;
select pk, f1, f2, left(f3, 4), check_row_ts(row_start, row_end) from t1 for system_time all order by pk;
pk	f1	f2	left(f3, 4)	check_row_ts(row_start, row_end)
1	8	8	SHOR	HISTORICAL ROW
2	8	8	LONG	HISTORICAL ROW
drop table t1;
# Shorter case for clustered index (MDEV-25004)
create table t1 (
y int primary key, r int, f int, key (r),
foreign key (f) references t1 (r) on delete set null)
with system versioning engine innodb;
insert into t1 values (1, 6, 6), (2, 6, 6);
delete from t1;
select *, check_row_ts(row_start, row_end) from t1 for system_time all;
y	r	f	check_row_ts(row_start, row_end)
1	6	6	HISTORICAL ROW
2	6	6	HISTORICAL ROW
drop tables t1;
# Secondary unique index
create table t1 (
y int unique null, r int, f int, key (r),
foreign key (f) references t1 (r) on delete set null)
with system versioning engine innodb;
insert into t1 values (1, 6, 6), (2, 6, 6);
delete from t1;
select *, check_row_ts(row_start, row_end) from t1 for system_time all;
y	r	f	check_row_ts(row_start, row_end)
1	6	6	HISTORICAL ROW
2	6	6	HISTORICAL ROW
drop tables t1;
# Non-unique index cannot be fixed because it does not trigger duplicate error
create table t1 (
y int, r int, f int, key (y), key (r),
foreign key (f) references t1 (r) on delete set null)
with system versioning engine innodb;
insert into t1 values (1, 6, 6), (2, 6, 6);
delete from t1;
select *, check_row_ts(row_start, row_end) from t1 for system_time all;
y	r	f	check_row_ts(row_start, row_end)
1	6	6	HISTORICAL ROW
2	6	NULL	ERROR: row_end == row_start
2	6	6	HISTORICAL ROW
drop tables t1;
#
# MDEV-21555 Assertion secondary index is out of sync on delete from versioned table
#
create table t1 (a int, b int as (a + 1) virtual, key(a)) engine=innodb with system versioning;
set foreign_key_checks= off;
insert into t1 (a) values (1), (2);
alter table t1 add foreign key (b) references t1 (a), algorithm=copy;
update t1 set a= null where a = 1;
delete from t1 where a is null;
set foreign_key_checks= on;
delete history from t1;
delete from t1;
drop table t1;
#
# MDEV-30378 Versioned REPLACE succeeds with ON DELETE RESTRICT
# constraint
#
create table t0 (pk integer primary key) with system versioning engine=innodb;
create table t1 (pk integer primary key,
foreign key(pk) references t0(pk)
on delete restrict on update cascade) engine=innodb;
create table t2 (pk integer);
insert into t0 (pk) values (1);
insert into t1 (pk) values (1);
insert into t2 (pk) values (1);
delete from t0;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t1`, CONSTRAINT `t1_ibfk_1` FOREIGN KEY (`pk`) REFERENCES `t0` (`pk`) ON UPDATE CASCADE)
replace t0 values (1);
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t1`, CONSTRAINT `t1_ibfk_1` FOREIGN KEY (`pk`) REFERENCES `t0` (`pk`) ON UPDATE CASCADE)
select * into outfile 'load_t0' from t0 ;
load data infile 'load_t0' replace into table t0;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t1`, CONSTRAINT `t1_ibfk_1` FOREIGN KEY (`pk`) REFERENCES `t0` (`pk`) ON UPDATE CASCADE)
delete t0, t2 from t0 join t2;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t1`, CONSTRAINT `t1_ibfk_1` FOREIGN KEY (`pk`) REFERENCES `t0` (`pk`) ON UPDATE CASCADE)
select pk from t0;
pk
1
# Cleanup
drop table t1, t0, t2;
# create_select for a temporary table didn't set up pos_in_locked_tables.
create table t (a int unique) engine=innodb
replace select 1 as a, 2 as b union select 1 as a, 3 as c;
select * from t;
a	b
1	3
drop table t;
create temporary table t (a int unique) engine=innodb
replace select 1 as a, 2 as b union select 1 as a, 3 as c;
select * from t;
a	b
1	3
drop table t;
#
# MDEV-20729 Fix REFERENCES constraint in column definition
#
create table t1(id int);
# system fields can't be foreign keys:
create or replace table t2(
x int,
sys_start SYS_DATATYPE as row start references t1(id),
sys_end SYS_DATATYPE as row end,
period for system_time(sys_start, sys_end)
) engine innodb with system versioning;
Got one of the listed errors
create or replace table t2(
x int,
sys_start SYS_DATATYPE as row start,
sys_end SYS_DATATYPE as row end references t1(id),
period for system_time(sys_start, sys_end)
) engine innodb with system versioning;
Got one of the listed errors
create or replace table t2(
x int,
sys_start SYS_DATATYPE as row start,
sys_end SYS_DATATYPE as row end,
period for system_time(sys_start, sys_end),
foreign key (sys_start) references t1(id)
) engine innodb with system versioning;
ERROR HY000: Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
create or replace table t2(
x int,
sys_start SYS_DATATYPE as row start,
sys_end SYS_DATATYPE as row end,
period for system_time(sys_start, sys_end),
foreign key (sys_end) references t1(id)
) engine innodb with system versioning;
ERROR HY000: Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
drop table t1;
# End of 10.5 tests