connection node_2;
connection node_1;
connection node_1;
CREATE SEQUENCE seq NOCACHE ENGINE=InnoDB;
SELECT NEXTVAL(seq) = 1;
NEXTVAL(seq) = 1
1
connection node_2;
SELECT NEXTVAL(seq) = 2;
NEXTVAL(seq) = 2
1
connection node_1;
SELECT NEXTVAL(seq) = 3;
NEXTVAL(seq) = 3
1
SELECT SETVAL(seq, 100);
SETVAL(seq, 100)
100
connection node_2;
SELECT NEXTVAL(seq) = 101;
NEXTVAL(seq) = 101
1
connection node_1;
SELECT NEXTVAL(seq) = 102;
NEXTVAL(seq) = 102
1
DROP SEQUENCE seq;
CREATE TABLE t1(f1 INT);
CREATE SEQUENCE seq_transaction NOCACHE ENGINE=InnoDB;
START TRANSACTION;
INSERT INTO t1 VALUES (0);
SELECT NEXTVAL(seq_transaction);
NEXTVAL(seq_transaction)
1
INSERT INTO t1 VALUES (NEXTVAL(seq_transaction));
COMMIT;
connection node_2;
SELECT COUNT(*) = 2 FROM t1;
COUNT(*) = 2
1
SELECT NEXTVAL(seq_transaction) = 3;
NEXTVAL(seq_transaction) = 3
1
connection node_1;
SELECT NEXTVAL(seq_transaction) = 4;
NEXTVAL(seq_transaction) = 4
1
DROP SEQUENCE seq_transaction;
DROP TABLE t1;