mirror of
https://github.com/MariaDB/server.git
synced 2025-07-04 01:23:45 +03:00
31c990ca57
Problem: Statements that write to tables with auto_increment columns
based on the selection from another table, may lead to master
and slave going out of sync, as the order in which the rows
are retrieved from the table may differ on master and slave.
Solution: We mark writing to a table with auto_increment table
based on the rows selected from another table as unsafe. This
will cause the execution of such statements to throw a warning
and forces the statement to be logged in ROW if the logging
format is mixed.
Changes:
1. All the statements that writes to a table with auto_increment
column(s) based on the rows fetched from another table, will now
be unsafe.
2. CREATE TABLE with SELECT will now be unsafe.
sql/share/errmsg-utf8.txt:
Added new warning messages.
sql/sql_base.cc:
-Created function to check statements that write to
tables with auto_increment column and has select.
-Marked all the statements that write to a table
with auto_increment column based on rows fetched
from other table(s) as unsafe.
sql/sql_table.cc:
mark CREATE TABLE[with auto_increment column] as unsafe.
196 lines
3.4 KiB
Plaintext
196 lines
3.4 KiB
Plaintext
include/master-slave.inc
|
|
[connection master]
|
|
call mtr.add_suppression('Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT.');
|
|
|
|
-------- Test for BUG#9361 --------
|
|
CREATE TABLE t1 (
|
|
a int unsigned not null auto_increment primary key,
|
|
b int unsigned
|
|
) ENGINE=MyISAM;
|
|
CREATE TABLE t2 (
|
|
a int unsigned not null auto_increment primary key,
|
|
b int unsigned
|
|
) ENGINE=MyISAM;
|
|
INSERT INTO t1 VALUES (NULL, 0);
|
|
INSERT INTO t1 SELECT NULL, 0 FROM t1;
|
|
INSERT INTO t2 VALUES (NULL, 0), (NULL,1);
|
|
SELECT * FROM t1 ORDER BY a;
|
|
a b
|
|
1 0
|
|
2 0
|
|
SELECT * FROM t2 ORDER BY a;
|
|
a b
|
|
1 0
|
|
2 1
|
|
UPDATE t2, (SELECT a FROM t1 ORDER BY a) AS t SET t2.b = t.a+5 ;
|
|
SELECT * FROM t1 ORDER BY a;
|
|
a b
|
|
1 0
|
|
2 0
|
|
SELECT * FROM t2 ORDER BY a;
|
|
a b
|
|
1 6
|
|
2 6
|
|
SELECT * FROM t1 ORDER BY a;
|
|
a b
|
|
1 0
|
|
2 0
|
|
SELECT * FROM t2 ORDER BY a;
|
|
a b
|
|
1 6
|
|
2 6
|
|
drop table t1,t2;
|
|
|
|
-------- Test 1 for BUG#9361 --------
|
|
DROP TABLE IF EXISTS t1;
|
|
DROP TABLE IF EXISTS t2;
|
|
CREATE TABLE t1 (
|
|
a1 char(30),
|
|
a2 int,
|
|
a3 int,
|
|
a4 char(30),
|
|
a5 char(30)
|
|
);
|
|
CREATE TABLE t2 (
|
|
b1 int,
|
|
b2 char(30)
|
|
);
|
|
INSERT INTO t1 VALUES ('Yes', 1, NULL, 'foo', 'bar');
|
|
INSERT INTO t2 VALUES (1, 'baz');
|
|
UPDATE t1 a, t2
|
|
SET a.a1 = 'No'
|
|
WHERE a.a2 =
|
|
(SELECT b1
|
|
FROM t2
|
|
WHERE b2 = 'baz')
|
|
AND a.a3 IS NULL
|
|
AND a.a4 = 'foo'
|
|
AND a.a5 = 'bar';
|
|
SELECT * FROM t1;
|
|
a1 a2 a3 a4 a5
|
|
No 1 NULL foo bar
|
|
SELECT * FROM t2;
|
|
b1 b2
|
|
1 baz
|
|
DROP TABLE t1, t2;
|
|
|
|
-------- Test 2 for BUG#9361 --------
|
|
DROP TABLE IF EXISTS t1;
|
|
DROP TABLE IF EXISTS t2;
|
|
DROP TABLE IF EXISTS t3;
|
|
CREATE TABLE t1 (
|
|
i INT,
|
|
j INT,
|
|
x INT,
|
|
y INT,
|
|
z INT
|
|
);
|
|
CREATE TABLE t2 (
|
|
i INT,
|
|
k INT,
|
|
x INT,
|
|
y INT,
|
|
z INT
|
|
);
|
|
CREATE TABLE t3 (
|
|
j INT,
|
|
k INT,
|
|
x INT,
|
|
y INT,
|
|
z INT
|
|
);
|
|
INSERT INTO t1 VALUES ( 1, 2,13,14,15);
|
|
INSERT INTO t2 VALUES ( 1, 3,23,24,25);
|
|
INSERT INTO t3 VALUES ( 2, 3, 1,34,35), ( 2, 3, 1,34,36);
|
|
UPDATE t1 AS a
|
|
INNER JOIN t2 AS b
|
|
ON a.i = b.i
|
|
INNER JOIN t3 AS c
|
|
ON a.j = c.j AND b.k = c.k
|
|
SET a.x = b.x,
|
|
a.y = b.y,
|
|
a.z = (
|
|
SELECT sum(z)
|
|
FROM t3
|
|
WHERE y = 34
|
|
)
|
|
WHERE b.x = 23;
|
|
SELECT * FROM t1;
|
|
i j x y z
|
|
1 2 23 24 71
|
|
DROP TABLE t1, t2, t3;
|
|
DROP TABLE IF EXISTS t1;
|
|
Warnings:
|
|
Note 1051 Unknown table 't1'
|
|
DROP TABLE IF EXISTS t2;
|
|
Warnings:
|
|
Note 1051 Unknown table 't2'
|
|
CREATE TABLE t1 (
|
|
idp int(11) NOT NULL default '0',
|
|
idpro int(11) default NULL,
|
|
price decimal(19,4) default NULL,
|
|
PRIMARY KEY (idp)
|
|
);
|
|
CREATE TABLE t2 (
|
|
idpro int(11) NOT NULL default '0',
|
|
price decimal(19,4) default NULL,
|
|
nbprice int(11) default NULL,
|
|
PRIMARY KEY (idpro)
|
|
);
|
|
INSERT INTO t1 VALUES
|
|
(1,1,'3.0000'),
|
|
(2,2,'1.0000'),
|
|
(3,1,'1.0000'),
|
|
(4,1,'4.0000'),
|
|
(5,3,'2.0000'),
|
|
(6,2,'4.0000');
|
|
INSERT INTO t2 VALUES
|
|
(1,'0.0000',0),
|
|
(2,'0.0000',0),
|
|
(3,'0.0000',0);
|
|
update
|
|
t2
|
|
join
|
|
( select idpro, min(price) as min_price, count(*) as nbr_price
|
|
from t1
|
|
where idpro>0 and price>0
|
|
group by idpro
|
|
) as table_price
|
|
on t2.idpro = table_price.idpro
|
|
set t2.price = table_price.min_price,
|
|
t2.nbprice = table_price.nbr_price;
|
|
select "-- MASTER AFTER JOIN --" as "";
|
|
|
|
-- MASTER AFTER JOIN --
|
|
select * from t1;
|
|
idp idpro price
|
|
1 1 3.0000
|
|
2 2 1.0000
|
|
3 1 1.0000
|
|
4 1 4.0000
|
|
5 3 2.0000
|
|
6 2 4.0000
|
|
select * from t2;
|
|
idpro price nbprice
|
|
1 1.0000 3
|
|
2 1.0000 2
|
|
3 2.0000 1
|
|
select "-- SLAVE AFTER JOIN --" as "";
|
|
|
|
-- SLAVE AFTER JOIN --
|
|
select * from t1;
|
|
idp idpro price
|
|
1 1 3.0000
|
|
2 2 1.0000
|
|
3 1 1.0000
|
|
4 1 4.0000
|
|
5 3 2.0000
|
|
6 2 4.0000
|
|
select * from t2;
|
|
idpro price nbprice
|
|
1 1.0000 3
|
|
2 1.0000 2
|
|
3 2.0000 1
|
|
DROP TABLE t1, t2;
|
|
include/rpl_end.inc
|