connection node_2;
connection node_1;
CREATE TABLE t1 (f1 INTEGER PRIMARY KEY DEFAULT 0, f2 char(12));
connection node_1;
START TRANSACTION;
INSERT INTO t1 (f2) VALUES ('a'), ('b');
ERROR 23000: Duplicate entry '0' for key 'PRIMARY'
COMMIT;
SELECT COUNT(*) AS expect_0 FROM t1;
expect_0
0
connection node_2;
SELECT COUNT(*) AS expect_0 FROM t1;
expect_0
0
DROP TABLE t1;
CREATE TABLE t1 (f1 INTEGER PRIMARY KEY DEFAULT 0, f2 char(12));
connection node_1;
START TRANSACTION;
INSERT INTO t1 VALUES (1, 'a');
INSERT INTO t1 VALUES (2, 'b');
INSERT INTO t1 (f2) VALUES ('c'), ('d');
ERROR 23000: Duplicate entry '0' for key 'PRIMARY'
COMMIT;
expect (1,'a'), (2, 'b')
SELECT * FROM t1;
f1	f2
1	a
2	b
connection node_2;
expect (1,'a'), (2, 'b')
SELECT * FROM t1;
f1	f2
1	a
2	b
DROP TABLE t1;
CREATE TABLE t1 (f1 INTEGER PRIMARY KEY DEFAULT 0, f2 char(12));
connection node_1;
INSERT INTO t1 (f2) VALUES ('a'),('b');
ERROR 23000: Duplicate entry '0' for key 'PRIMARY'
SELECT COUNT(*) AS expect_0 FROM t1;
expect_0
0
connection node_2;
SELECT COUNT(*) AS expect_0 FROM t1;
expect_0
0
DROP TABLE t1;
connection node_1;
CREATE TABLE p(id int primary key, j int) ENGINE=InnoDB;
CREATE TABLE c(id int primary key, fk1 int) ENGINE=InnoDB;
ALTER TABLE c ADD FOREIGN KEY (fk1) references p(id);
INSERT INTO p VALUES(1, 0);
START TRANSACTION;
INSERT INTO c VALUES (3,1);
INSERT INTO c VALUES (1,1), (2,2);
ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`c`, CONSTRAINT `c_ibfk_1` FOREIGN KEY (`fk1`) REFERENCES `p` (`id`))
COMMIT;
SELECT * FROM p;
id	j
1	0
SELECT * FROM c;
id	fk1
3	1
connection node_2;
SELECT * FROM p;
id	j
1	0
SELECT * FROM c;
id	fk1
3	1
DROP TABLE c;
DROP TABLE p;