112 lines
1.9 KiB
Plaintext
112 lines
1.9 KiB
Plaintext
DROP TABLE IF EXISTS t1;
|
|
connect con1,localhost,root,,;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
connect con2,localhost,root,,;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
connection con1;
|
|
CREATE TABLE t1 (a INT, pk INT AUTO_INCREMENT PRIMARY KEY) ENGINE=xengine;
|
|
START TRANSACTION;
|
|
SELECT a FROM t1;
|
|
a
|
|
connection con2;
|
|
BEGIN;
|
|
INSERT INTO t1 (a) VALUES(1);
|
|
connection con1;
|
|
SELECT a FROM t1;
|
|
a
|
|
connection con2;
|
|
INSERT INTO t1 (a) VALUES (2);
|
|
connection con1;
|
|
SELECT a FROM t1;
|
|
a
|
|
INSERT INTO t1 (a) SELECT a+100 FROM t1;
|
|
SELECT a FROM t1;
|
|
a
|
|
connection con2;
|
|
SELECT a FROM t1;
|
|
a
|
|
1
|
|
2
|
|
COMMIT;
|
|
SELECT a FROM t1;
|
|
a
|
|
1
|
|
2
|
|
connection con1;
|
|
SELECT a FROM t1;
|
|
a
|
|
1
|
|
2
|
|
INSERT INTO t1 (a) SELECT a+200 FROM t1;
|
|
SELECT a FROM t1;
|
|
a
|
|
1
|
|
2
|
|
201
|
|
202
|
|
COMMIT;
|
|
SELECT a FROM t1;
|
|
a
|
|
1
|
|
2
|
|
201
|
|
202
|
|
connection con2;
|
|
SELECT a FROM t1;
|
|
a
|
|
1
|
|
2
|
|
201
|
|
202
|
|
connection default;
|
|
CREATE TABLE t2 (a INT PRIMARY KEY) ENGINE=xengine;
|
|
INSERT INTO t2 (a) VALUES (1);
|
|
COMMIT;
|
|
connection con1;
|
|
BEGIN;
|
|
SELECT a from t2;
|
|
a
|
|
1
|
|
INSERT INTO t2 (a) VALUES (1), (3);
|
|
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
|
|
connection con2;
|
|
INSERT INTO t2 (a) VALUES (2);
|
|
COMMIT;
|
|
connection con1;
|
|
SELECT a from t2;
|
|
a
|
|
1
|
|
2
|
|
COMMIT;
|
|
connection default;
|
|
disconnect con1;
|
|
disconnect con2;
|
|
DROP TABLE t1;
|
|
DROP TABLE t2;
|
|
CREATE TABLE t3 (
|
|
pk int unsigned PRIMARY KEY,
|
|
count int unsigned DEFAULT '0'
|
|
) ENGINE=XENGINE;
|
|
connect con1,localhost,root,,;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
connect con2,localhost,root,,;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
connection con1;
|
|
BEGIN;
|
|
SELECT * FROM t3;
|
|
pk count
|
|
connection con2;
|
|
BEGIN;
|
|
INSERT INTO t3 (pk) VALUES(1) ON DUPLICATE KEY UPDATE count=count+1;
|
|
COMMIT;
|
|
connection con1;
|
|
INSERT INTO t3 (pk) VALUES(1) ON DUPLICATE KEY UPDATE count=count+1;
|
|
COMMIT;
|
|
SELECT count FROM t3;
|
|
count
|
|
1
|
|
connection default;
|
|
disconnect con1;
|
|
disconnect con2;
|
|
DROP TABLE t3;
|