mirror of
https://github.com/MariaDB/server.git
synced 2025-01-31 11:01:52 +01:00
74 lines
2.2 KiB
Text
74 lines
2.2 KiB
Text
--source include/have_innodb.inc
|
|
--source include/have_debug.inc
|
|
|
|
--enable_connect_log
|
|
|
|
--echo #
|
|
--echo # Bug #19471516 SERVER CRASHES WHEN EXECUTING ALTER TABLE
|
|
--echo # ADD FOREIGN KEY
|
|
--echo #
|
|
|
|
CREATE TABLE `department` (`department_id` INT, `department_people_fk` INT,
|
|
PRIMARY KEY (`department_id`)) engine=innodb;
|
|
|
|
CREATE TABLE `title` (`title_id` INT, `title_manager_fk` INT,
|
|
`title_reporter_fk` INT, PRIMARY KEY (`title_id`)) engine=innodb;
|
|
|
|
CREATE TABLE `people` (`people_id` INT, PRIMARY KEY (`people_id`)) engine=innodb;
|
|
|
|
ALTER TABLE `department` ADD FOREIGN KEY (`department_people_fk`) REFERENCES
|
|
`people` (`people_id`);
|
|
|
|
ALTER TABLE `title` ADD FOREIGN KEY (`title_manager_fk`) REFERENCES `people`
|
|
(`people_id`);
|
|
|
|
ALTER TABLE `title` ADD FOREIGN KEY (`title_reporter_fk`) REFERENCES `people`
|
|
(`people_id`);
|
|
|
|
drop table title, department, people;
|
|
|
|
#
|
|
# FK and prelocking:
|
|
# child table accesses (reads and writes) wait for locks.
|
|
#
|
|
create table t1 (a int primary key, b int) engine=innodb;
|
|
create table t2 (c int primary key, d int,
|
|
foreign key (d) references t1 (a) on update cascade) engine=innodb;
|
|
insert t1 values (1,1),(2,2),(3,3);
|
|
insert t2 values (4,1),(5,2),(6,3);
|
|
flush table t2 with read lock; # this takes MDL_SHARED_NO_WRITE
|
|
connect (con1,localhost,root);
|
|
--error ER_ROW_IS_REFERENCED_2
|
|
delete from t1 where a=2;
|
|
send update t1 set a=10 where a=1;
|
|
connection default;
|
|
let $wait_condition= select 1 from information_schema.processlist where state='Waiting for table metadata lock';
|
|
source include/wait_condition.inc;
|
|
unlock tables;
|
|
connection con1;
|
|
reap;
|
|
connection default;
|
|
lock table t2 write; # this takes MDL_SHARED_NO_READ_WRITE
|
|
connection con1;
|
|
send delete from t1 where a=2;
|
|
connection default;
|
|
let $wait_condition= select 1 from information_schema.processlist where state='Waiting for table metadata lock';
|
|
source include/wait_condition.inc;
|
|
unlock tables;
|
|
connection con1;
|
|
--error ER_ROW_IS_REFERENCED_2
|
|
reap;
|
|
connection default;
|
|
unlock tables;
|
|
disconnect con1;
|
|
|
|
# but privileges should not be checked
|
|
create user foo;
|
|
grant select,update on test.t1 to foo;
|
|
connect(foo,localhost,foo);
|
|
update t1 set a=30 where a=3;
|
|
disconnect foo;
|
|
connection default;
|
|
select * from t2;
|
|
drop table t2, t1;
|
|
drop user foo;
|