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7ae0be25a6
MDEV-16210 original case was wrongly allowed versioned DELETE from referenced table where reference is by non-primary key. InnoDB UPDATE has optimization for new rows not changing its clustered index position. In this case InnoDB doesn't update all secondary indexes and misses the one holding the referenced key. The fix was to disable this optimization for versioned DELETE. In case of versioned DELETE we forcely update all secondary indexes and therefore check them for constraints. But the above fix raised another problem with versioned DELETE on foreign table side. In case when there was no corresponding record in referenced table (illegal foreign reference can be done with "set foreign_key_checks=off") there was spurious constraint check (because versioned DELETE is actually UPDATE) and hence the operation failed with constraint error. MDEV-16210 tried to fix the above problem by checking foreign table instead of referenced table and that at least was illegal. Constraint check is done by row_ins_check_foreign_constraint() no matter what kind of table is checked, referenced or foreign (controlled by check_ref argument). Referenced table is checked by row_upd_check_references_constraints(). Foreign table is checked by row_ins_check_foreign_constraints(). Current fix rolls back the wrong fix for the above problem and disables referenced table check for DELETE on foreign side by introducing `check_foreign` argument which when set to *false* skips row_ins_check_foreign_constraints() call.
430 lines
15 KiB
Plaintext
430 lines
15 KiB
Plaintext
#################
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# Test RESTRICT #
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#################
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create table parent(
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id int,
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KEY_TYPE (id)
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) engine innodb;
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create table child(
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parent_id int,
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sys_start SYS_DATATYPE as row start invisible,
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sys_end SYS_DATATYPE as row end invisible,
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period for system_time(sys_start, sys_end),
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foreign key(parent_id) references parent(id)
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on delete restrict
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on update restrict
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) engine innodb with system versioning;
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insert into parent values(1);
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insert into child values(1);
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delete from parent where id = 1;
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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`))
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delete from child where parent_id = 1;
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delete from parent where id = 1;
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insert into parent values(1);
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insert into child values(1);
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update parent set id=id+1;
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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`))
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delete from child;
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update parent set id=id+1;
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select * from child for system_time all;
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parent_id
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1
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1
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drop table child;
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drop table parent;
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##############################################
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# Test when clustered index is a foreign key #
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##############################################
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create table parent(
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id int(10) unsigned,
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KEY_TYPE (id)
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) engine innodb;
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create table child(
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parent_id int(10) unsigned primary key,
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sys_start SYS_DATATYPE as row start invisible,
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sys_end SYS_DATATYPE as row end invisible,
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period for system_time(sys_start, sys_end),
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foreign key(parent_id) references parent(id)
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) engine innodb with system versioning;
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insert into parent values(1);
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insert into child values(1);
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delete from parent where id = 1;
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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`))
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drop table child;
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drop table parent;
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################
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# Test CASCADE #
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################
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create table parent(
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id int,
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KEY_TYPE (id)
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) engine innodb;
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create table child(
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parent_id int,
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sys_start SYS_DATATYPE as row start invisible,
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sys_end SYS_DATATYPE as row end invisible,
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period for system_time(sys_start, sys_end),
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foreign key(parent_id) references parent(id)
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on delete cascade
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on update cascade
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) engine innodb with system versioning;
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insert into parent values(1);
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insert into child values(1);
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delete from parent where id = 1;
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select * from child;
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parent_id
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select * from child for system_time all;
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parent_id
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1
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insert into parent values(1);
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insert into child values(1);
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update parent set id = id + 1;
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select * from child;
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parent_id
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2
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select * from child for system_time all;
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parent_id
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1
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1
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2
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drop table child;
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drop table parent;
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create or replace table parent (
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id int,
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KEY_TYPE(id),
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sys_start SYS_DATATYPE as row start invisible,
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sys_end SYS_DATATYPE as row end invisible,
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period for system_time(sys_start, sys_end)
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) with system versioning
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engine innodb;
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create or replace table child (
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x int,
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parent_id int not null,
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constraint `parent-fk`
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foreign key (parent_id) references parent (id)
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on delete cascade
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on update restrict
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)
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engine innodb;
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insert into parent (id) values (2);
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insert into child (x, parent_id) values (2, 2);
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delete from parent;
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select * from child;
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x parent_id
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drop table child;
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drop table parent;
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create or replace table parent (
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id int,
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KEY_TYPE(id)
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)
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engine innodb;
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create or replace table child (
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id int primary key,
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parent_id int not null,
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row_start SYS_DATATYPE as row start invisible,
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row_end SYS_DATATYPE as row end invisible,
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period for system_time(row_start, row_end),
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constraint `parent-fk`
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foreign key (parent_id) references parent (id)
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on delete cascade
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on update restrict
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) with system versioning
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engine innodb;
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insert into parent (id) values (3);
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insert into child (id, parent_id) values (3, 3);
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delete from parent;
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select * from child;
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id parent_id
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select *, check_row(row_start, row_end) from child for system_time all;
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id parent_id check_row(row_start, row_end)
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3 3 HISTORICAL ROW
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drop table child;
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drop table parent;
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#################
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# Test SET NULL #
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#################
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create table parent(
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id int,
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KEY_TYPE (id)
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) engine innodb;
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create or replace table child(
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parent_id int,
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sys_start SYS_DATATYPE as row start invisible,
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sys_end SYS_DATATYPE as row end invisible,
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period for system_time(sys_start, sys_end),
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foreign key(parent_id) references parent(id)
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on delete set null
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on update set null
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) engine innodb with system versioning;
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insert into parent values(1);
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insert into child values(1);
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delete from child;
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insert into child values(1);
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delete from parent where id = 1;
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select * from child;
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parent_id
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NULL
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select *, current_row(sys_end) as current_row from child for system_time all order by sys_end;
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parent_id current_row
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1 0
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1 0
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NULL 1
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delete from child;
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insert into parent values(1);
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insert into child values(1);
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update parent set id= id + 1;
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select * from child;
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parent_id
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NULL
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select *, current_row(sys_end) as current_row from child for system_time all order by sys_end;
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parent_id current_row
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1 0
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1 0
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NULL 0
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1 0
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NULL 1
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drop table child;
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drop table parent;
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###########################
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# Parent table is foreign #
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###########################
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create or replace table parent(
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id int,
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KEY_TYPE (id),
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sys_start SYS_DATATYPE as row start invisible,
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sys_end SYS_DATATYPE as row end invisible,
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period for system_time(sys_start, sys_end)
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) engine innodb with system versioning;
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create or replace table child(
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parent_id int,
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foreign key(parent_id) references parent(id)
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) engine innodb;
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insert into parent values(1);
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insert into child values(1);
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delete from parent;
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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`))
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update parent set id=2;
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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`))
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delete from child;
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delete from parent;
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insert into child values(1);
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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`))
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insert into parent values(1);
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insert into child values(1);
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delete from parent;
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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`))
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update parent set id=2;
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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`))
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drop table child;
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drop table parent;
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###################
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# crash on DELETE #
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###################
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create or replace table a (
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cola int(10),
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KEY_TYPE (cola),
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v_cola int(10) as (cola mod 10) virtual,
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sys_start SYS_DATATYPE as row start invisible,
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sys_end SYS_DATATYPE as row end invisible,
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period for system_time(sys_start, sys_end)
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) engine=innodb with system versioning;
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create index v_cola on a (v_cola);
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create or replace table b(
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cola int(10),
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v_cola int(10),
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sys_start SYS_DATATYPE as row start invisible,
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sys_end SYS_DATATYPE as row end invisible,
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period for system_time(sys_start, sys_end)
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) engine=innodb with system versioning;
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alter table b add constraint `v_cola_fk`
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foreign key (v_cola) references a (v_cola);
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insert into a(cola) values (12);
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insert into b(cola, v_cola) values (10,2);
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delete from a;
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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`))
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drop table b, a;
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###############################################
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# CASCADE UPDATE foreign not system versioned #
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###############################################
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create or replace table parent (
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id smallint unsigned not null auto_increment,
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value int unsigned not null,
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primary key (id, value)
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) engine = innodb;
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create or replace table child (
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id mediumint unsigned not null auto_increment primary key,
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parent_id smallint unsigned not null,
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parent_value int unsigned not null,
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sys_start SYS_DATATYPE as row start invisible,
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sys_end SYS_DATATYPE as row end invisible,
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period for system_time(sys_start, sys_end),
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constraint `fk_child_parent`
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foreign key (parent_id, parent_value) references parent (id, value)
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on delete cascade
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on update cascade
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) engine = innodb with system versioning;
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create or replace table subchild (
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id int not null auto_increment primary key,
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parent_id smallint unsigned not null,
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parent_value int unsigned not null,
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constraint `fk_subchild_child_parent`
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foreign key (parent_id, parent_value) references child (parent_id, parent_value)
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on delete cascade
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on update cascade
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) engine=innodb;
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insert into parent (value) values (23);
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select id, value from parent into @id, @value;
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insert into child values (default, @id, @value);
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insert into subchild values (default, @id, @value);
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select parent_id from subchild;
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parent_id
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1
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update parent set id = 11, value = value + 1;
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select parent_id from subchild;
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parent_id
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11
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select * from child;
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id parent_id parent_value
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1 11 24
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delete from parent;
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select count(*) from child;
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count(*)
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0
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select * from child for system_time all;
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id parent_id parent_value
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1 1 23
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1 11 24
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select count(*) from subchild;
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count(*)
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0
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drop table subchild, child, parent;
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#
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# MDEV-18057 Assertion `(node->state == 5) || (node->state == 6)' failed in row_upd_sec_step upon DELETE after UPDATE failed due to FK violation
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#
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create or replace table t1 (f1 int, key(f1)) engine=innodb;
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create or replace table t2 (f2 int, foreign key (f2) references t1 (f1)) engine=innodb with system versioning;
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set foreign_key_checks= off;
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insert ignore into t2 values (1);
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set foreign_key_checks= on;
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update t2 set f2= 2;
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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`))
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delete from t2;
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drop table t2, t1;
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#
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# MDEV-18879 Corrupted record inserted by FOREIGN KEY operation
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#
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SET timestamp = 1;
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SET time_zone='+02:00';
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SELECT now();
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now()
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1970-01-01 02:00:01
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CREATE TABLE t1 (
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pk INT UNSIGNED PRIMARY KEY,
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f1 varchar(255) CHARACTER SET ucs2,
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f2 longtext CHARACTER SET ucs2,
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f3 varchar(255),
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f4 char(255),
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f5 longtext CHARACTER SET ucs2,
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f6 INT UNSIGNED,
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f7 INT UNSIGNED,
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f8 INT UNSIGNED,
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f9 INT UNSIGNED,
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f10 INT UNSIGNED,
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f11 INT UNSIGNED,
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f12 varchar(255) CHARACTER SET ucs2,
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f13 char(255) CHARACTER SET ucs2,
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f14 char(255) CHARACTER SET ucs2,
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f15 varchar(255),
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f16 longtext,
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f17 char(255)
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) ENGINE=InnoDB WITH SYSTEM VERSIONING;
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INSERT INTO t1 VALUES
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(1, 'a', 'e', 'f', 'a', 'generate', 1, 2, 3, 4, 5, 6, 'main', 'against', 'b', 'u', 'explode', 'tomorrow'),
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(2, REPEAT('a',127), 'f', 'k', 'game', 'g', 2, 3, 4, 5, 6, 7, REPEAT('o',222), 'oven', 'flower', REPEAT('r',120), 'l', 'g'),
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(3, 'weekly', 'x', 'v', 'r', 'c', 3, 4, 5, 6, 7, 8, 'validity', 'y', 'h', 'oxygen', 'venture', 'uncertainty'),
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(4, 'r', 't', REPEAT('b',153), 'modern', 'h', 4, 5, 6, 7, 8, 9, REPEAT('g',128), 'a', 'w', 'f', 'b', 'b'),
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(5, 'h', 'y', REPEAT('v',107), 'knife', 'profession', 5, 6, 7, 8, 9, 0, 'infection', 'u', 'likelihood', REPEAT('n',149), 'folk', 'd'),
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(6, 'g', 'violent', REPEAT('o',28), 'capital', 'p', 6, 7, 8, 9, 0, 1, 'w', 'patron', 'd', 'y', 'originally', 'k'),
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(7, 'k', 'uncomfortable', REPEAT('v',248), 'y', 'link', 7, 8, 9, 0, 1, 2, REPEAT('j',204), 'j', 'statute', 'emphasis', 'u', 'water'),
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(8, 'preparation', 'water', 'suck', 'silver', 'a', 8, 9, 0, 1, 2, 3, 'h', 'q', 'o', 't', 'k', 'y'),
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(9, 'y', 'f', 'e', 'a', 'dawn', 9, 0, 1, 2, 3, 4, 'peak', 'parking', 'b', 't', 'timber', 'c'),
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(10, REPEAT('h',78), 'apologize', 'direct', 'u', 'frankly', 0, 1, 2, 3, 4, 5, 'h', 'exhibit', 'f', 'd', 'effective', 'c'),
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(11, 'i', 'h', 'a', 'y', 'u', 1, 2, 3, 4, 5, 6, 'l', 'b', 'm', 'respond', 'ideological', 'credibility');
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CREATE TABLE t2 (
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pk int primary key,
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f char(255) CHARACTER SET ucs2,
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key(f)
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) ENGINE=InnoDB;
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INSERT INTO t2 VALUES (1,'against'),(2,'q');
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SET SQL_MODE= '';
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SET timestamp = 2;
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SELECT * FROM t1 INTO OUTFILE 't1.data';
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SET timestamp = 3;
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UPDATE t1 SET f13 = 'q';
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SET timestamp = 4;
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LOAD DATA INFILE 't1.data' REPLACE INTO TABLE t1;
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Warnings:
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Warning 1265 Data truncated for column 'f12' at row 2
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Warning 1265 Data truncated for column 'f12' at row 4
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Warning 1265 Data truncated for column 'f12' at row 7
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SELECT * FROM t1 INTO OUTFILE 't1.data.2' ;
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SET timestamp = 5;
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LOAD DATA INFILE 't1.data.2' REPLACE INTO TABLE t1;
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Warnings:
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Warning 1265 Data truncated for column 'f1' at row 2
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Warning 1265 Data truncated for column 'f12' at row 2
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Warning 1265 Data truncated for column 'f12' at row 4
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Warning 1265 Data truncated for column 'f12' at row 7
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Warning 1265 Data truncated for column 'f1' at row 10
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SELECT * FROM t2 INTO OUTFILE 't2.data';
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SET timestamp = 6;
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LOAD DATA INFILE 't2.data' REPLACE INTO TABLE t2;
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SET FOREIGN_KEY_CHECKS = OFF;
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ALTER TABLE t1 ADD FOREIGN KEY (f13) REFERENCES t2 (f) ON DELETE SET NULL;
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SET timestamp = 7;
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LOAD DATA INFILE 't1.data' REPLACE INTO TABLE t1;
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Warnings:
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Warning 1265 Data truncated for column 'f12' at row 2
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Warning 1265 Data truncated for column 'f12' at row 4
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Warning 1265 Data truncated for column 'f12' at row 7
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SET FOREIGN_KEY_CHECKS = ON;
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SET SESSION SQL_MODE= 'NO_BACKSLASH_ESCAPES';
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SET timestamp = 8;
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LOAD DATA INFILE 't1.data' REPLACE INTO TABLE t1;
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Warnings:
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Warning 1265 Data truncated for column 'f12' at row 2
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Warning 1265 Data truncated for column 'f12' at row 4
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Warning 1265 Data truncated for column 'f12' at row 7
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SET timestamp = 9;
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REPLACE INTO t2 SELECT * FROM t2;
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DROP TABLE t1, t2;
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#
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# MDEV-16210 FK constraints on versioned tables use historical rows, which may cause constraint violation
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#
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create or replace table t1 (a int, key(a)) engine innodb with system versioning;
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create or replace table t2 (b int, foreign key (b) references t1(a)) engine innodb;
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insert into t1 values (1),(2);
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insert into t2 values (1);
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# DELETE from referenced table is not allowed
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delete from t1 where a = 1;
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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`))
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drop tables t2, t1;
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#
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# MDEV-20812 Unexpected ER_ROW_IS_REFERENCED_2 or server crash in row_ins_foreign_report_err upon DELETE from versioned table with FK
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#
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create or replace table t1 (x int primary key) engine innodb;
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create or replace table t2 (x int, foreign key (x) references t1(x)) engine innodb with system versioning;
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set foreign_key_checks= off;
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insert into t2 values (1), (1);
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set foreign_key_checks= on;
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# DELETE from foreign table is allowed
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delete from t2;
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drop tables t2, t1;
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create or replace table t1 (a int, key(a)) engine innodb;
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insert into t1 values (1);
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create or replace table t2 (b int, foreign key (b) references t1(a)) engine innodb with system versioning;
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insert into t2 values (1), (1);
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# DELETE from foreign table is allowed
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delete from t2;
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drop tables t2, t1;
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