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MDEV-31313 SYSTEM VERSIONING and FOREIGN KEY CASCADE create orphan rows on replica

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Constraints processing row_ins_check_foreign_constraint() was not
called because row_upd_check_references_constraints() didn't see
update as delete: node->is_delete was false.

Since MDEV-30378 we check for TRG_EVENT_DELETE to detect versioned
delete in ha_innobase::update_row().

Now we can use TRG_EVENT_DELETE to set upd_node->is_delete, so
constraints processing is triggered correctly.
This commit is contained in:
Aleksey Midenkov
2023-07-20 14:13:59 +03:00
parent add0c01bae
commit fe618de691
5 changed files with 130 additions and 2 deletions
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53
mysql-test/suite/versioning/t/rpl.test
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@ -1,4 +1,5 @@
--source suite/versioning/engines.inc
--source suite/versioning/common.inc
--source include/have_partition.inc
--source include/master-slave.inc
@ -6,6 +7,7 @@
#Testing command counters -BEFORE.
#Storing the before counts of Slave
connection slave;
--source suite/versioning/common.inc
let $slave_com_commit_before= query_get_value(SHOW GLOBAL STATUS LIKE 'com_commit', Value, 1);
let $slave_com_insert_before= query_get_value(SHOW GLOBAL STATUS LIKE 'com_insert', Value, 1);
let $slave_com_delete_before= query_get_value(SHOW GLOBAL STATUS LIKE 'com_delete', Value, 1);
@ -167,4 +169,55 @@ sync_slave_with_master;
connection master;
drop table t1;
--echo #
--echo # MDEV-31313 SYSTEM VERSIONING and FOREIGN KEY CASCADE create orphan rows on replica
--echo #
create table parent (
id int(11) not null auto_increment,
processdate datetime default null,
primary key (id)
) engine=innodb with system versioning;
set timestamp= unix_timestamp('2000-01-01 00:00:00');
insert into parent values (1, now());
create table child (
id int(11) not null auto_increment,
ch_name varchar(30),
andreid int(11) default null,
primary key (id),
key andreid (andreid),
constraint fk_andreid foreign key (andreid) references parent (id) on delete cascade
) engine=innodb with system versioning;
set timestamp= unix_timestamp('2000-01-01 00:00:01');
insert into child values (null, 'vimtomar', 1);
set timestamp= unix_timestamp('2000-01-01 00:00:02');
delete from parent where id = 1;
select check_row(row_start, row_end) from parent for system_time all;
select check_row(row_start, row_end) from child for system_time all;
select * from child;
select * from parent;
sync_slave_with_master;
# Annoying tweaking of microseconds in slave row_end, so row_end can be <= row_start
select check_row_slave(row_start, row_end) from parent for system_time all;
select check_row_slave(row_start, row_end) from child for system_time all;
select * from child;
select * from parent;
# Cleanup
--source suite/versioning/common_finish.inc
--connection master
set timestamp= default;
drop table child;
drop table parent;
sync_slave_with_master;
connection master;
--source suite/versioning/common_finish.inc
--source include/rpl_end.inc