DROP SCHEMA IF EXISTS bug52750;
CREATE SCHEMA bug52750 CHARSET utf8;
USE bug52750;

CREATE TABLE t(i INTEGER, j INTEGER) ENGINE=INNODB;

CREATE TABLE tab(i INTEGER, j INTEGER) ENGINE=INNODB;

DELIMITER §
CREATE TRIGGER trigger_t
BEFORE INSERT ON t
FOR EACH ROW
BEGIN
SET NEW.j=NEW.i + 5;
END§

DELIMITER ;