SET STORAGE_ENGINE = 'tokudb'; DROP TABLE IF EXISTS test_bug; create table test_bug ( id INT NOT NULL PRIMARY KEY, foo CHAR(10) ) ENGINE=TokuDB; set session transaction isolation level read uncommitted; replace into test_bug (id, foo) VALUES (1, "bar"); insert ignore into test_bug (id, foo) VALUES (1, "bar"); insert into test_bug (id, foo) VALUES (1, "bar") ON DUPLICATE KEY UPDATE foo='baz'; set session transaction isolation level serializable; DROP TABLE test_bug;