EVOLUTION-MANAGER

Edit File: locking_issues.result

-----------------------------------------------------------------------
- Locking issues case 1.1:
-   Locking rows that do not exist when using all primary key columns in
-   a WHERE clause
-   using REPEATABLE READ transaction isolation level
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(id1 INT, id2 INT, value INT, PRIMARY KEY(id1, id2));
INSERT INTO t0 VALUES (1,1,0), (3,3,0), (4,4,0), (6,6,0);
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
SELECT * FROM t0 WHERE id1=1 AND id2=5 FOR UPDATE;
id1	id2	value
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
INSERT INTO t0 VALUES (1,5,0);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SELECT * FROM t0 WHERE id1=1 AND id2=5 FOR UPDATE;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
connection con1;
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 1.1:
-   Locking rows that do not exist when using all primary key columns in
-   a WHERE clause
-   using READ COMMITTED transaction isolation level
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(id1 INT, id2 INT, value INT, PRIMARY KEY(id1, id2));
INSERT INTO t0 VALUES (1,1,0), (3,3,0), (4,4,0), (6,6,0);
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
SELECT * FROM t0 WHERE id1=1 AND id2=5 FOR UPDATE;
id1	id2	value
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
INSERT INTO t0 VALUES (1,5,0);
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SELECT * FROM t0 WHERE id1=1 AND id2=5 FOR UPDATE;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
connection con1;
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 1.2:
-   Locking rows that do not exist without using all primary key
-   columns in a WHERE clause
-   using REPEATABLE READ transaction isolation level
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(id1 INT, id2 INT, value INT, PRIMARY KEY(id1, id2));
INSERT INTO t0 VALUES (1,1,0), (3,3,0), (4,4,0), (6,6,0);
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
SELECT * FROM t0 WHERE id1=1 FOR UPDATE;
id1	id2	value
1	1	0
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
SELECT * FROM t0 WHERE id1=1 AND id2=4 FOR UPDATE;
id1	id2	value
INSERT INTO t0 VALUES (1,5,0);
connection con1;
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 1.2:
-   Locking rows that do not exist without using all primary key
-   columns in a WHERE clause
-   using READ COMMITTED transaction isolation level
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(id1 INT, id2 INT, value INT, PRIMARY KEY(id1, id2));
INSERT INTO t0 VALUES (1,1,0), (3,3,0), (4,4,0), (6,6,0);
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
SELECT * FROM t0 WHERE id1=1 FOR UPDATE;
id1	id2	value
1	1	0
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
SELECT * FROM t0 WHERE id1=1 AND id2=4 FOR UPDATE;
id1	id2	value
INSERT INTO t0 VALUES (1,5,0);
connection con1;
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 2:
-   Rows that are scanned but do not match the WHERE are not locked
-   using REPEATABLE READ transaction isolation level unless
-   rocksdb_lock_scanned_rows is on
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
SELECT @@global.rocksdb_lock_scanned_rows;
@@global.rocksdb_lock_scanned_rows
0
CREATE TABLE t0(id INT PRIMARY KEY, value INT);
INSERT INTO t0 VALUES (1,0), (2,1), (3,0), (4,0), (5,1);
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
connection con1;
SELECT * FROM t0 WHERE value > 0 FOR UPDATE;
id	value
2	1
5	1
connection con2;
UPDATE t0 SET VALUE=10 WHERE id=1;
UPDATE t0 SET VALUE=10 WHERE id=5;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
connection con1;
UPDATE t0 SET value=100 WHERE id in (4,5) and value>0;
connection con2;
SELECT * FROM t0 WHERE id=4 FOR UPDATE;
id	value
4	0
COMMIT;
SELECT * FROM t0;
id	value
1	10
2	1
3	0
4	0
5	1
connection con1;
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 2:
-   Rows that are scanned but do not match the WHERE are not locked
-   using READ COMMITTED transaction isolation level unless
-   rocksdb_lock_scanned_rows is on
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
SELECT @@global.rocksdb_lock_scanned_rows;
@@global.rocksdb_lock_scanned_rows
0
CREATE TABLE t0(id INT PRIMARY KEY, value INT);
INSERT INTO t0 VALUES (1,0), (2,1), (3,0), (4,0), (5,1);
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
connection con1;
SELECT * FROM t0 WHERE value > 0 FOR UPDATE;
id	value
2	1
5	1
connection con2;
UPDATE t0 SET VALUE=10 WHERE id=1;
UPDATE t0 SET VALUE=10 WHERE id=5;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
connection con1;
UPDATE t0 SET value=100 WHERE id in (4,5) and value>0;
connection con2;
SELECT * FROM t0 WHERE id=4 FOR UPDATE;
id	value
4	0
COMMIT;
SELECT * FROM t0;
id	value
1	10
2	1
3	0
4	0
5	1
connection con1;
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 2:
-   Rows that are scanned but do not match the WHERE are not locked
-   using REPEATABLE READ transaction isolation level unless
-   rocksdb_lock_scanned_rows is on
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
SELECT @@global.rocksdb_lock_scanned_rows;
@@global.rocksdb_lock_scanned_rows
0
SET GLOBAL rocksdb_lock_scanned_rows=ON;
CREATE TABLE t0(id INT PRIMARY KEY, value INT);
INSERT INTO t0 VALUES (1,0), (2,1), (3,0), (4,0), (5,1);
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
connection con1;
SELECT * FROM t0 WHERE value > 0 FOR UPDATE;
id	value
2	1
5	1
connection con2;
UPDATE t0 SET VALUE=10 WHERE id=1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
connection con1;
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;
SET GLOBAL rocksdb_lock_scanned_rows=0;

-----------------------------------------------------------------------
- Locking issues case 2:
-   Rows that are scanned but do not match the WHERE are not locked
-   using READ COMMITTED transaction isolation level unless
-   rocksdb_lock_scanned_rows is on
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
SELECT @@global.rocksdb_lock_scanned_rows;
@@global.rocksdb_lock_scanned_rows
0
SET GLOBAL rocksdb_lock_scanned_rows=ON;
CREATE TABLE t0(id INT PRIMARY KEY, value INT);
INSERT INTO t0 VALUES (1,0), (2,1), (3,0), (4,0), (5,1);
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
connection con1;
SELECT * FROM t0 WHERE value > 0 FOR UPDATE;
id	value
2	1
5	1
connection con2;
UPDATE t0 SET VALUE=10 WHERE id=1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
connection con1;
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;
SET GLOBAL rocksdb_lock_scanned_rows=0;

-----------------------------------------------------------------------
- Locking issues case 3:
-   After creating a snapshot, other clients updating rows
-   using REPEATABLE READ transaction isolation level
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(id INT AUTO_INCREMENT PRIMARY KEY, value INT);
Inserting 200,000 rows
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
SELECT * FROM t0 WHERE value > 0 FOR UPDATE;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
UPDATE t0 SET VALUE=VALUE+1 WHERE id=190000;
connection con1;
ERROR: 1213
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 3:
-   After creating a snapshot, other clients updating rows
-   using READ COMMITTED transaction isolation level
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(id INT AUTO_INCREMENT PRIMARY KEY, value INT);
Inserting 200,000 rows
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
SELECT * FROM t0 WHERE value > 0 FOR UPDATE;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
UPDATE t0 SET VALUE=VALUE+1 WHERE id=190000;
connection con1;
id	value
190000	1
ERROR: 0
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 4:
-   Phantom rows
-   using REPEATABLE READ transaction isolation level
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(id INT AUTO_INCREMENT PRIMARY KEY, value INT);
Inserting 200,000 rows
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
SELECT * FROM t0 WHERE value > 0 FOR UPDATE;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
INSERT INTO t0 VALUES(200001,1), (-1,1);
connection con1;
id	value
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 4:
-   Phantom rows
-   using READ COMMITTED transaction isolation level
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(id INT AUTO_INCREMENT PRIMARY KEY, value INT);
Inserting 200,000 rows
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
SELECT * FROM t0 WHERE value > 0 FOR UPDATE;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
INSERT INTO t0 VALUES(200001,1), (-1,1);
connection con1;
id	value
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 5:
-   Deleting primary key
-   using REPEATABLE READ transaction isolation level
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(id INT AUTO_INCREMENT PRIMARY KEY, value INT);
Inserting 200,000 rows
UPDATE t0 SET value=100 WHERE id=190000;
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
SELECT * FROM t0 WHERE value > 0 FOR UPDATE;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
DELETE FROM t0 WHERE id=190000;
COMMIT;
connection con1;
ERROR: 1213
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 5:
-   Deleting primary key
-   using READ COMMITTED transaction isolation level
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(id INT AUTO_INCREMENT PRIMARY KEY, value INT);
Inserting 200,000 rows
UPDATE t0 SET value=100 WHERE id=190000;
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
SELECT * FROM t0 WHERE value > 0 FOR UPDATE;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
DELETE FROM t0 WHERE id=190000;
COMMIT;
connection con1;
id	value
ERROR: 0
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 6:
-   Changing primary key
-   using REPEATABLE READ transaction isolation level
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(id INT AUTO_INCREMENT PRIMARY KEY, value INT);
Inserting 200,000 rows
UPDATE t0 SET value=100 WHERE id=190000;
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
SELECT * FROM t0 WHERE value > 0 FOR UPDATE;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
UPDATE t0 SET id=200001 WHERE id=190000;
COMMIT;
connection con1;
ERROR: 1213
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 6:
-   Changing primary key
-   using READ COMMITTED transaction isolation level
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(id INT AUTO_INCREMENT PRIMARY KEY, value INT);
Inserting 200,000 rows
UPDATE t0 SET value=100 WHERE id=190000;
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
SELECT * FROM t0 WHERE value > 0 FOR UPDATE;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
UPDATE t0 SET id=200001 WHERE id=190000;
COMMIT;
connection con1;
id	value
ERROR: 0
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t0;

-----------------------------------------------------------------------
- Locking issues case 7:
-   Rows that are scanned as part of a query but not in the table being
-   updated should not be locked unless rocksdb_lock_scanned_rows is on
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t1, t2;
SELECT @@global.rocksdb_lock_scanned_rows;
@@global.rocksdb_lock_scanned_rows
0
CREATE TABLE t1(id INT PRIMARY KEY, value INT);
CREATE TABLE t2(id INT PRIMARY KEY, value INT);
INSERT INTO t1 VALUES (1,1), (2,2), (3,3);
INSERT INTO t2 VALUES (1,1), (2,2), (3,3), (4,4), (5,5);
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
lock_scanned_rows is 0
connection con1;
UPDATE t1 JOIN t2 ON t1.id = t2.id SET t1.value=t1.value+100 WHERE t2.id=3;
connection con2;
UPDATE t2 SET value=value+100;
SELECT * FROM t2;
id	value
1	101
2	102
3	103
4	104
5	105
connection con1;
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t1;
DROP TABLE t2;

-----------------------------------------------------------------------
- Locking issues case 7:
-   Rows that are scanned as part of a query but not in the table being
-   updated should not be locked unless rocksdb_lock_scanned_rows is on
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t1, t2;
SELECT @@global.rocksdb_lock_scanned_rows;
@@global.rocksdb_lock_scanned_rows
0
CREATE TABLE t1(id INT PRIMARY KEY, value INT);
CREATE TABLE t2(id INT PRIMARY KEY, value INT);
INSERT INTO t1 VALUES (1,1), (2,2), (3,3);
INSERT INTO t2 VALUES (1,1), (2,2), (3,3), (4,4), (5,5);
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
lock_scanned_rows is 0
connection con1;
UPDATE t1 JOIN t2 ON t1.id = t2.id SET t1.value=t1.value+100 WHERE t2.id=3;
connection con2;
UPDATE t2 SET value=value+100;
SELECT * FROM t2;
id	value
1	101
2	102
3	103
4	104
5	105
connection con1;
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t1;
DROP TABLE t2;

-----------------------------------------------------------------------
- Locking issues case 7:
-   Rows that are scanned as part of a query but not in the table being
-   updated should not be locked unless rocksdb_lock_scanned_rows is on
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t1, t2;
SELECT @@global.rocksdb_lock_scanned_rows;
@@global.rocksdb_lock_scanned_rows
0
SET GLOBAL rocksdb_lock_scanned_rows=ON;
CREATE TABLE t1(id INT PRIMARY KEY, value INT);
CREATE TABLE t2(id INT PRIMARY KEY, value INT);
INSERT INTO t1 VALUES (1,1), (2,2), (3,3);
INSERT INTO t2 VALUES (1,1), (2,2), (3,3), (4,4), (5,5);
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
lock_scanned_rows is 1
connection con1;
UPDATE t1 JOIN t2 ON t1.id = t2.id SET t1.value=t1.value+100 WHERE t2.id=3;
connection con2;
UPDATE t2 SET value=value+100 WHERE id=3;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
UPDATE t2 SET value=value+100 WHERE id IN (1,2,4,5);
SELECT * FROM t2;
id	value
1	101
2	102
3	3
4	104
5	105
connection con1;
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t1;
DROP TABLE t2;
SET GLOBAL rocksdb_lock_scanned_rows=0;

-----------------------------------------------------------------------
- Locking issues case 7:
-   Rows that are scanned as part of a query but not in the table being
-   updated should not be locked unless rocksdb_lock_scanned_rows is on
-----------------------------------------------------------------------
DROP TABLE IF EXISTS t1, t2;
SELECT @@global.rocksdb_lock_scanned_rows;
@@global.rocksdb_lock_scanned_rows
0
SET GLOBAL rocksdb_lock_scanned_rows=ON;
CREATE TABLE t1(id INT PRIMARY KEY, value INT);
CREATE TABLE t2(id INT PRIMARY KEY, value INT);
INSERT INTO t1 VALUES (1,1), (2,2), (3,3);
INSERT INTO t2 VALUES (1,1), (2,2), (3,3), (4,4), (5,5);
connect  con1,localhost,root,,;
connect  con2,localhost,root,,;
connection con1;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
connection con2;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
lock_scanned_rows is 1
connection con1;
UPDATE t1 JOIN t2 ON t1.id = t2.id SET t1.value=t1.value+100 WHERE t2.id=3;
connection con2;
UPDATE t2 SET value=value+100 WHERE id=3;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
UPDATE t2 SET value=value+100 WHERE id IN (1,2,4,5);
SELECT * FROM t2;
id	value
1	101
2	102
3	3
4	104
5	105
connection con1;
COMMIT;
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t1;
DROP TABLE t2;
SET GLOBAL rocksdb_lock_scanned_rows=0;