mariadb/mysql-test/suite/versioning/t/foreign.test

--source suite/versioning/common.inc

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

create table parent(
  id int unique key
) 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 ##############################################

create table parent(
  id int(10) unsigned unique key
) 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 ################

create table parent(
  id int unique key
) 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
eval create or replace table parent (
  id int 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)
) 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;

create or replace table parent (
  id int primary key
)
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 #################

create or replace table parent(
  id int unique key
) 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
eval create or replace table parent(
  id int unique 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)
) 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
eval create or replace table a (
  cola int(10) primary key,
  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);
select id, value from parent into @id, @value;
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;


--source suite/versioning/common_finish.inc