config root man

SET @save_session_debug= @@SESSION.debug;
SET @@SESSION.debug = "+d,transaction_write_set_savepoint_level";
CREATE TABLE t1 (c1 INT NOT NULL PRIMARY KEY);
CREATE TABLE t2 (c1 INT NOT NULL PRIMARY KEY);
CREATE TABLE t3 (c1 INT NOT NULL PRIMARY KEY);
CREATE TABLE t4 (c1 INT NOT NULL PRIMARY KEY);
CREATE TRIGGER t1_tr1 BEFORE INSERT ON t1 FOR EACH ROW
BEGIN
SAVEPOINT S1;
INSERT INTO t2 VALUES (NEW.c1);
END|
CREATE FUNCTION f1(x INT) RETURNS INT
BEGIN
INSERT INTO t2 VALUES (x);
SAVEPOINT S1;
INSERT INTO t1 VALUES (100);
ROLLBACK TO S1;
RETURN (1);
END|
BEGIN;
SAVEPOINT S1;
INSERT INTO t1 VALUES (1);
ROLLBACK TO S1;
SELECT f1(102);
f1(102)
1
SET @@SESSION.debug = "+d,transaction_write_set_size_2";
SELECT f1(101);
f1(101)
1
COMMIT;
SET @@SESSION.debug= @save_session_debug;
CREATE TRIGGER t3_tr1 AFTER INSERT ON t3 FOR EACH ROW
BEGIN
DECLARE EXIT HANDLER FOR SQLEXCEPTION
BEGIN
ROLLBACK TO SAVEPOINT inside_trigger;
INSERT INTO t4 VALUES (NEW.c1*20);
END;
SAVEPOINT inside_trigger;
INSERT INTO t4 VALUES (NEW.c1);
RELEASE SAVEPOINT inside_trigger;
END|
INSERT INTO t3 values (1);
INSERT INTO t4 values (2);
INSERT INTO t3 values (2);
SELECT * FROM t1;
SELECT * FROM t2;
c1	101
c1	102
SELECT * FROM t3;
c1	1
c1	2
SELECT * FROM t4;
c1	1
c1	2
c1	40
include/assert.inc ['There are no values in table t1']
include/assert.inc ['There are 2 values in table t2']
include/assert.inc ['There are 2 values in table t3']
include/assert.inc ['There are 3 values in table t4']
DROP FUNCTION f1;
DROP TABLE t1;
DROP TABLE t2;
DROP TABLE t3;
DROP TABLE t4;