1create table t1 (i int, f float) 2engine = innodb data directory = 'NEW_DATA_DIR'; 3insert into t1 values (1, 1.1), (2, 2.2), (3, 3.3); 4t1.ibd 5select * from t1; 6i f 71 1.1 82 2.2 93 3.3 10set session debug = "+d,ib_trunc_crash_drop_reinit_done_create_to_start"; 11truncate table t1; 12ERROR HY000: Lost connection to MySQL server during query 13select * from t1; 14i f 15t1.ibd 16insert into t1 values (1, 1.1), (2, 2.2), (3, 3.3); 17select * from t1; 18i f 191 1.1 202 2.2 213 3.3 22drop table t1; 23