# # Test foreign keys if no PK is present # --source include/galera_cluster.inc --source include/have_innodb.inc CREATE TABLE parent ( id INT, KEY (id) ) ENGINE=InnoDB; CREATE TABLE child ( id INT, parent_id INT, FOREIGN KEY (parent_id) REFERENCES parent(id) ON UPDATE CASCADE ON DELETE CASCADE ) ENGINE=InnoDB; INSERT INTO parent VALUES (1), (1), (2), (2); INSERT INTO child VALUES (1,1), (2,2), (1,1), (2,2); --connection node_2 DELETE FROM parent WHERE id = 1; SELECT COUNT(*) = 0 FROM child WHERE id = 1; --connection node_1 UPDATE parent SET id = 3 WHERE id = 2; --connection node_2 SELECT COUNT(*) = 0 FROM child WHERE parent_id = 1; SELECT parent_id = 3 FROM child WHERE id = 2; DROP TABLE child; DROP TABLE parent;