path: root/mysql-test/suite/versioning/t/foreign.test

--source suite/versioning/key_type.inc
--source suite/versioning/common.inc

--echo #################
--echo # Test RESTRICT #
--echo #################

--replace_result "$KEY_TYPE" KEY_TYPE
eval create table parent(
  id int,
  $KEY_TYPE (id)
) engine innodb;

--replace_result $sys_datatype_expl SYS_DATATYPE
eval create table child(
  parent_id int,
  sys_start $sys_datatype_expl as row start invisible,
  sys_end $sys_datatype_expl 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);

-- error ER_ROW_IS_REFERENCED_2
delete from parent where id = 1;
delete from child where parent_id = 1;
delete from parent where id = 1;

insert into parent values(1);
insert into child values(1);
-- error ER_ROW_IS_REFERENCED_2
update parent set id=id+1;
delete from child;
update parent set id=id+1;
select * from child for system_time all;

drop table child;
drop table parent;

--echo ##############################################
--echo # Test when clustered index is a foreign key #
--echo ##############################################

--replace_result "$KEY_TYPE" KEY_TYPE
eval create table parent(
  id int(10) unsigned,
  $KEY_TYPE (id)
) engine innodb;

--replace_result $sys_datatype_expl SYS_DATATYPE
eval create table child(
  parent_id int(10) unsigned primary key,
  sys_start $sys_datatype_expl as row start invisible,
  sys_end $sys_datatype_expl 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);

-- error ER_ROW_IS_REFERENCED_2
delete from parent where id = 1;

drop table child;
drop table parent;

--echo ################
--echo # Test CASCADE #
--echo ################

--replace_result "$KEY_TYPE" KEY_TYPE
eval create table parent(
  id int,
  $KEY_TYPE (id)
) engine innodb;

--replace_result $sys_datatype_expl SYS_DATATYPE
eval create table child(
  parent_id int,
  sys_start $sys_datatype_expl as row start invisible,
  sys_end $sys_datatype_expl 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;
select * from child for system_time all;

insert into parent values(1);
insert into child values(1);
update parent set id = id + 1;
select * from child;
select * from child for system_time all;

drop table child;
drop table parent;

--replace_result $sys_datatype_expl SYS_DATATYPE "$KEY_TYPE" KEY_TYPE
eval create or replace table parent (
  id int,
  $KEY_TYPE(id),
  sys_start $sys_datatype_expl as row start invisible,
  sys_end $sys_datatype_expl 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;

drop table child;
drop table parent;

--replace_result "$KEY_TYPE" KEY_TYPE
eval create or replace table parent (
  id int,
  $KEY_TYPE(id)
)
engine innodb;

--replace_result $sys_datatype_expl SYS_DATATYPE
eval create or replace table child (
  id int primary key,
  parent_id int not null,
  row_start $sys_datatype_expl as row start invisible,
  row_end $sys_datatype_expl 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;
select *, check_row(row_start, row_end) from child for system_time all;

drop table child;
drop table parent;

--echo #################
--echo # Test SET NULL #
--echo #################

--replace_result "$KEY_TYPE" KEY_TYPE
eval create table parent(
  id int,
  $KEY_TYPE (id)
) engine innodb;

--replace_result $sys_datatype_expl SYS_DATATYPE
eval create or replace table child(
  parent_id int,
  sys_start $sys_datatype_expl as row start invisible,
  sys_end $sys_datatype_expl 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;
select *, current_row(sys_end) as current_row from child for system_time all order by sys_end;
delete from child;

insert into parent values(1);
insert into child values(1);
update parent set id= id + 1;
select * from child;
select *, current_row(sys_end) as current_row from child for system_time all order by sys_end;

drop table child;
drop table parent;

--echo ###########################
--echo # Parent table is foreign #
--echo ###########################

--replace_result $sys_datatype_expl SYS_DATATYPE "$KEY_TYPE" KEY_TYPE
eval create or replace table parent(
  id int,
  $KEY_TYPE (id),
  sys_start $sys_datatype_expl as row start invisible,
  sys_end $sys_datatype_expl 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);
-- error ER_ROW_IS_REFERENCED_2
delete from parent;
-- error ER_ROW_IS_REFERENCED_2
update parent set id=2;

delete from child;
delete from parent;

-- error ER_NO_REFERENCED_ROW_2
insert into child values(1);

insert into parent values(1);
insert into child values(1);
-- error ER_ROW_IS_REFERENCED_2
delete from parent;
-- error ER_ROW_IS_REFERENCED_2
update parent set id=2;

drop table child;
drop table parent;

--echo ###################
--echo # crash on DELETE #
--echo ###################

--replace_result $sys_datatype_expl SYS_DATATYPE "$KEY_TYPE" KEY_TYPE
eval create or replace table a (
  cola int(10),
  $KEY_TYPE (cola),
  v_cola int(10) as (cola mod 10) virtual,
  sys_start $sys_datatype_expl as row start invisible,
  sys_end $sys_datatype_expl 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);

--replace_result $sys_datatype_expl SYS_DATATYPE
eval create or replace table b(
  cola int(10),
  v_cola int(10),
  sys_start $sys_datatype_expl as row start invisible,
  sys_end $sys_datatype_expl 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);
--error ER_ROW_IS_REFERENCED_2
delete from a;

drop table b, a;

--echo ###############################################
--echo # CASCADE UPDATE foreign not system versioned #
--echo ###############################################
create or replace table parent (
	id smallint unsigned not null auto_increment,
	value int unsigned not null,
	primary key (id, value)
) engine = innodb;

--replace_result $sys_datatype_expl SYS_DATATYPE
eval 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_expl as row start invisible,
  sys_end $sys_datatype_expl 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);
--enable_prepare_warnings
select id, value from parent into @id, @value;
--disable_prepare_warnings
insert into child values (default, @id, @value);
insert into subchild values (default, @id, @value);

select parent_id from subchild;
update parent set id = 11, value = value + 1;
select parent_id from subchild;
select * from child;

delete from parent;
select count(*) from child;
select * from child for system_time all;
select count(*) from subchild;

drop table subchild, child, parent;

--echo #
--echo # MDEV-18057 Assertion `(node->state == 5) || (node->state == 6)' failed in row_upd_sec_step upon DELETE after UPDATE failed due to FK violation
--echo #
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;
--error ER_NO_REFERENCED_ROW_2
update t2 set f2= 2;
delete from t2;

drop table t2, t1;

--echo #
--echo # MDEV-18879 Corrupted record inserted by FOREIGN KEY operation
--echo #
SET timestamp = 1;
SET time_zone='+02:00';
SELECT now();
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;
SELECT * INTO OUTFILE 't1.data.2' FROM t1;
SET timestamp = 5;
LOAD DATA INFILE 't1.data.2' REPLACE INTO TABLE t1;
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;
SET FOREIGN_KEY_CHECKS = ON;

SET SESSION SQL_MODE= 'NO_BACKSLASH_ESCAPES';
SET timestamp = 8;
LOAD DATA INFILE 't1.data' REPLACE INTO TABLE t1;
SET timestamp = 9;
REPLACE INTO t2 SELECT * FROM t2;

# Cleanup
DROP TABLE t1, t2;
set timestamp= default;
set time_zone='+00:00';
--let $datadir= `select @@datadir`
--remove_file $datadir/test/t1.data
--remove_file $datadir/test/t1.data.2
--remove_file $datadir/test/t2.data

--echo #
--echo # MDEV-16210 FK constraints on versioned tables use historical rows, which may cause constraint violation
--echo #
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);
--echo # DELETE from referenced table is not allowed
--error ER_ROW_IS_REFERENCED_2
delete from t1 where a = 1;
drop tables t2, t1;

--echo #
--echo # MDEV-20812 Unexpected ER_ROW_IS_REFERENCED_2 or server crash in row_ins_foreign_report_err upon DELETE from versioned table with FK
--echo #
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;
--echo # 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);
--echo # DELETE from foreign table is allowed
delete from t2;
drop tables t2, t1;

--echo #
--echo # MDEV-23644 Assertion on evaluating foreign referential action for self-reference in system versioned table
--echo #
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;

# cleanup
drop table t1;

--echo # 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;
drop tables t1;

--echo # 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;
drop tables t1;

--echo # 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;
drop tables t1;

--echo #
--echo # MDEV-21555 Assertion secondary index is out of sync on delete from versioned table
--echo #
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;

# cleanup
drop table t1;

--echo #
--echo # MDEV-20729 Fix REFERENCES constraint in column definition
--echo #
create or replace table t1(
  id int
);
--echo # system fields can't be foreign keys:
--replace_result $sys_datatype_expl SYS_DATATYPE
--error ER_PARSE_ERROR,ER_PARSE_ERROR
eval create or replace table t2(
  x int,
  sys_start $sys_datatype_expl as row start references t1(id),
  sys_end $sys_datatype_expl as row end,
  period for system_time(sys_start, sys_end)
) engine innodb with system versioning;
--replace_result $sys_datatype_expl SYS_DATATYPE
--error ER_PARSE_ERROR,ER_PARSE_ERROR
eval create or replace table t2(
  x int,
  sys_start $sys_datatype_expl as row start,
  sys_end $sys_datatype_expl as row end references t1(id),
  period for system_time(sys_start, sys_end)
) engine innodb with system versioning;
--replace_result $sys_datatype_expl SYS_DATATYPE
--error ER_CANT_CREATE_TABLE
eval create or replace table t2(
  x int,
  sys_start $sys_datatype_expl as row start,
  sys_end $sys_datatype_expl as row end,
  period for system_time(sys_start, sys_end),
  foreign key (sys_start) references t1(id)
) engine innodb with system versioning;
--replace_result $sys_datatype_expl SYS_DATATYPE
--error ER_CANT_CREATE_TABLE
eval create or replace table t2(
  x int,
  sys_start $sys_datatype_expl as row start,
  sys_end $sys_datatype_expl as row end,
  period for system_time(sys_start, sys_end),
  foreign key (sys_end) references t1(id)
) engine innodb with system versioning;
drop table t1;

--source suite/versioning/common_finish.inc