# connection default
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
CREATE TABLE t1
(
id SMALLINT NOT NULL,
PRIMARY KEY (id)
) ENGINE=innodb
PARTITION BY RANGE (id)
(
PARTITION p1 VALUES LESS THAN (2),
PARTITION p2 VALUES LESS THAN (4),
PARTITION p3 VALUES LESS THAN (10)
);
INSERT INTO t1 VALUES (1),(2),(3);
# Test READ COMMITTED -> REPEATABLE READ
FLUSH TABLES;
SET TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
SELECT * FROM t1;
id
1
2
3
#connection con1
SET TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
INSERT INTO t1 VALUES(7);
COMMIT;
# connection default
COMMIT;
FLUSH TABLES;
# Test REPEATABLE READ -> READ COMMITTED
SET TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
SELECT * FROM t1;
id
1
2
3
7
# connection con1
SET TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
INSERT INTO t1 VALUES(9);
ERROR HY000: Cannot execute statement: impossible to write to binary log since BINLOG_FORMAT = STATEMENT and at least one table uses a storage engine limited to row-based logging. InnoDB is limited to row-logging when transaction isolation level is READ COMMITTED or READ UNCOMMITTED.
COMMIT;
COMMIT;
DROP TABLE t1;