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#
# WL#9636: Rename tx_{read_only,isolation} variables to transaction_*
#
# Setup.
SET @session_transaction_isolation = @@SESSION.transaction_isolation;
SET @global_transaction_isolation = @@GLOBAL.transaction_isolation;
# Creating connections
connect con0,localhost,root,,;
connection con0;
SET SESSION AUTOCOMMIT = OFF;
connect con1, localhost, root,,;
connection con1;
SET SESSION AUTOCOMMIT = OFF;
connection default;
# Creating tables
CREATE TABLE t1 (a int PRIMARY KEY, b int) ENGINE=INNODB;
INSERT INTO t1 VALUES(2, 2);
INSERT INTO t1 VALUES(4, 4);
INSERT INTO t1 VALUES(6, 6);
INSERT INTO t1 VALUES(8, 8);
INSERT INTO t1 VALUES(16, 16);
INSERT INTO t1 VALUES(18, 18);
INSERT INTO t1 VALUES(20, 20);
INSERT INTO t1 VALUES(22, 22);
INSERT INTO t1 VALUES(24, 24);
# Testing for value READ-UNCOMMITTED
connection con0;
SET SESSION transaction_isolation = 'READ-UNCOMMITTED';
set binlog_format=mixed;
connection con1;
SET SESSION transaction_isolation = 'READ-UNCOMMITTED';
set binlog_format=mixed;
# Testing WHERE on keys using IN clause
connection con0;
START TRANSACTION;
SELECT * FROM t1 WHERE a IN (2,4,6,8) FOR UPDATE;
a b
2 2
4 4
6 6
8 8
UPDATE t1 SET b = 10 WHERE a IN (2,4,6,8);
connection con1;
START TRANSACTION;
SELECT * FROM t1;
a b
2 10
4 10
6 10
8 10
16 16
18 18
20 20
22 22
24 24
INSERT INTO t1 VALUES(1, 1);
INSERT INTO t1 VALUES(3, 3);
SELECT * FROM t1;
a b
1 1
2 10
3 3
4 10
6 10
8 10
16 16
18 18
20 20
22 22
24 24
COMMIT;
connection con0;
DELETE FROM t1 WHERE a = 1 OR a = 3;
COMMIT;
# Testing WHERE on keys using # on even rows
connection con0;
START TRANSACTION;
SELECT * FROM t1 WHERE a % 2 = 0 FOR UPDATE;
a b
2 10
4 10
6 10
8 10
16 16
18 18
20 20
22 22
24 24
UPDATE t1 SET b = 10 WHERE a % 2 = 0;
connection con1;
START TRANSACTION;
SELECT * FROM t1;
a b
2 10
4 10
6 10
8 10
16 10
18 10
20 10
22 10
24 10
INSERT INTO t1 VALUES(23, 23);
INSERT INTO t1 VALUES(25, 25);
SELECT * FROM t1;
a b
2 10
4 10
6 10
8 10
16 10
18 10
20 10
22 10
23 23
24 10
25 25
COMMIT;
connection con0;
COMMIT;
# Testing for value READ-COMMITTED
connection con0;
SET SESSION transaction_isolation = 'READ-COMMITTED';
connection con1;
SET SESSION transaction_isolation = 'READ-COMMITTED';
# Testing WHERE on keys using % on even rows
connection con0;
START TRANSACTION;
SELECT * FROM t1 WHERE a % 2 = 0 FOR UPDATE;
a b
2 10
4 10
6 10
8 10
16 10
18 10
20 10
22 10
24 10
UPDATE t1 SET b = 11 WHERE a % 2 = 0;
connection con1;
START TRANSACTION;
SELECT * FROM t1;
a b
2 10
4 10
6 10
8 10
16 10
18 10
20 10
22 10
23 23
24 10
25 25
INSERT INTO t1 VALUES(5, 5);
INSERT INTO t1 VALUES(7, 7);
SELECT * FROM t1;
a b
2 10
4 10
5 5
6 10
7 7
8 10
16 10
18 10
20 10
22 10
23 23
24 10
25 25
COMMIT;
connection con0;
COMMIT;
# Testing for value REPEATABLE-READ
connection con0;
SET SESSION transaction_isolation = 'REPEATABLE-READ';
connection con1;
SET SESSION transaction_isolation = 'REPEATABLE-READ';
# Testing WHERE on keys using % on even rows
connection con0;
START TRANSACTION;
SELECT * FROM t1 WHERE a % 2 = 0 FOR UPDATE;
a b
2 11
4 11
6 11
8 11
16 11
18 11
20 11
22 11
24 11
UPDATE t1 SET b = 12 WHERE a % 2 = 0;
connection con1;
START TRANSACTION;
SELECT * FROM t1;
a b
2 11
4 11
5 5
6 11
7 7
8 11
16 11
18 11
20 11
22 11
23 23
24 11
25 25
INSERT INTO t1 VALUES(9, 9);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
INSERT INTO t1 VALUES(13, 13);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
Expected error "Lock wait timeout"
SELECT * FROM t1;
a b
2 11
4 11
5 5
6 11
7 7
8 11
16 11
18 11
20 11
22 11
23 23
24 11
25 25
COMMIT;
connection con0;
COMMIT;
# Testing WHERE on keys using IN clause
connection con0;
START TRANSACTION;
SELECT * FROM t1 WHERE a IN (2,4,6,8,10,12,14,16,18,20,22,24,26) = 0 FOR UPDATE;
a b
5 5
7 7
23 23
25 25
UPDATE t1 SET b = 13 WHERE a IN (2,4,6,8,10,12,14,16,18,20,22,24,26) = 0;
connection con1;
START TRANSACTION;
SELECT * FROM t1;
a b
2 12
4 12
5 5
6 12
7 7
8 12
16 12
18 12
20 12
22 12
23 23
24 12
25 25
INSERT INTO t1 VALUES(9, 9);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
INSERT INTO t1 VALUES(13, 13);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
Expected error "Lock wait timeout"
SELECT * FROM t1;
a b
2 12
4 12
5 5
6 12
7 7
8 12
16 12
18 12
20 12
22 12
23 23
24 12
25 25
COMMIT;
connection con0;
COMMIT;
# Testing WHERE on keys using IN clause
connection con0;
START TRANSACTION;
SELECT * FROM t1 WHERE a IN (2,4,6,8) = 0 FOR UPDATE;
a b
5 13
7 13
16 12
18 12
20 12
22 12
23 13
24 12
25 13
UPDATE t1 SET b = 14 WHERE a IN (2,4,6,8) = 0;
connection con1;
START TRANSACTION;
SELECT * FROM t1;
a b
2 12
4 12
5 13
6 12
7 13
8 12
16 12
18 12
20 12
22 12
23 13
24 12
25 13
INSERT INTO t1 VALUES(9, 9);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
INSERT INTO t1 VALUES(13, 13);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
Expected error "Lock wait timeout"
SELECT * FROM t1;
a b
2 12
4 12
5 13
6 12
7 13
8 12
16 12
18 12
20 12
22 12
23 13
24 12
25 13
COMMIT;
connection con0;
COMMIT;
# Testing for value SERIALIZABLE
connection con0;
SET SESSION transaction_isolation = 'SERIALIZABLE';
connection con1;
SET SESSION transaction_isolation = 'SERIALIZABLE';
# Testing WHERE on keys using # on even rows
connection con0;
START TRANSACTION;
SELECT * FROM t1 WHERE a % 2 = 0 FOR UPDATE;
a b
2 12
4 12
6 12
8 12
16 14
18 14
20 14
22 14
24 14
UPDATE t1 SET b = 15 WHERE a % 2 = 0;
connection con1;
START TRANSACTION;
SELECT * FROM t1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
INSERT INTO t1 VALUES(15, 15);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
INSERT INTO t1 VALUES(17, 17);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SELECT * FROM t1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
COMMIT;
connection con0;
COMMIT;
# Session data integrity check & GLOBAL Value check
SET GLOBAL transaction_isolation = 'READ-UNCOMMITTED';
connect con_int1,localhost,root,,;
connection con_int1;
SELECT @@SESSION.transaction_isolation;
@@SESSION.transaction_isolation
READ-UNCOMMITTED
READ-UNCOMMITTED Expected
SET SESSION transaction_isolation = 'SERIALIZABLE';
connect con_int2,localhost,root,,;
connection con_int2;
SELECT @@SESSION.transaction_isolation;
@@SESSION.transaction_isolation
READ-UNCOMMITTED
READ-UNCOMMITTED Expected
SET SESSION transaction_isolation = 'REPEATABLE-READ';
connection con_int2;
SELECT @@SESSION.transaction_isolation;
@@SESSION.transaction_isolation
REPEATABLE-READ
REPEATABLE-READ Expected
connection con_int1;
SELECT @@SESSION.transaction_isolation;
@@SESSION.transaction_isolation
SERIALIZABLE
SERIALIZABLE Expected
SELECT @@GLOBAL.transaction_isolation;
@@GLOBAL.transaction_isolation
READ-UNCOMMITTED
READ-UNCOMMITTED Expected
connection default;
disconnect con_int1;
disconnect con_int2;
# Cleanup
SET @@SESSION.transaction_isolation = @session_transaction_isolation;
SET @@GLOBAL.transaction_isolation = @global_transaction_isolation;
connection default;
disconnect con0;
disconnect con1;
DROP TABLE t1;