connection node_2; connection node_1; CREATE TABLE definer_root (f1 INTEGER, trigger_user VARCHAR(100)) ENGINE=InnoDB; CREATE TABLE definer_user (f1 INTEGER, trigger_user VARCHAR(100)) ENGINE=InnoDB; CREATE TABLE definer_current_user (f1 INTEGER, trigger_user VARCHAR(100)) ENGINE=InnoDB; CREATE TABLE definer_default (f1 INTEGER, trigger_user VARCHAR(100)) ENGINE=InnoDB; CREATE USER 'user1'; GRANT ALL ON test.* to 'user1'; CREATE DEFINER=root@localhost TRIGGER definer_root BEFORE INSERT ON definer_root FOR EACH ROW SET NEW.trigger_user = CURRENT_USER(); CREATE DEFINER=user1 TRIGGER definer_user BEFORE INSERT ON definer_user FOR EACH ROW SET NEW.trigger_user = CURRENT_USER(); CREATE DEFINER=current_user TRIGGER definer_current_user BEFORE INSERT ON definer_current_user FOR EACH ROW SET NEW.trigger_user = CURRENT_USER(); CREATE TRIGGER definer_default BEFORE INSERT ON definer_default FOR EACH ROW SET NEW.trigger_user = CURRENT_USER(); connection node_2; INSERT INTO definer_root (f1) VALUES (1); SELECT DEFINER = 'root@localhost' FROM INFORMATION_SCHEMA.TRIGGERS WHERE TRIGGER_NAME = 'definer_root'; DEFINER = 'root@localhost' 1 SELECT trigger_user = 'root@localhost' FROM definer_root; trigger_user = 'root@localhost' 1 INSERT INTO definer_user (f1) VALUES (1); SELECT DEFINER = 'user1@%' FROM INFORMATION_SCHEMA.TRIGGERS WHERE TRIGGER_NAME = 'definer_user'; DEFINER = 'user1@%' 1 SELECT trigger_user = 'user1@%' FROM definer_user; trigger_user = 'user1@%' 1 INSERT INTO definer_current_user (f1) VALUES (1); SELECT DEFINER = 'root@localhost' FROM INFORMATION_SCHEMA.TRIGGERS WHERE TRIGGER_NAME = 'definer_current_user'; DEFINER = 'root@localhost' 1 SELECT trigger_user = 'root@localhost' FROM definer_current_user; trigger_user = 'root@localhost' 1 INSERT INTO definer_default (f1) VALUES (1); SELECT DEFINER = 'root@localhost' FROM INFORMATION_SCHEMA.TRIGGERS WHERE TRIGGER_NAME = 'definer_default'; DEFINER = 'root@localhost' 1 SELECT trigger_user = 'root@localhost' FROM definer_default; trigger_user = 'root@localhost' 1 connection node_1; DROP TABLE definer_current_user; DROP TABLE definer_user; DROP TABLE definer_root; DROP TABLE definer_default; DROP USER 'user1';