drop table if exists t1; create table t1 SELECT 1,"table 1"; repair table t1 use_frm; Table Op Msg_type Msg_text test.t1 repair warning Number of rows changed from 0 to 1 test.t1 repair status OK alter table t1 TYPE=HEAP; repair table t1 use_frm; Table Op Msg_type Msg_text test.t1 repair error The handler for the table doesn't support repair drop table t1; repair table t1 use_frm; Table Op Msg_type Msg_text test.t1 repair error Table 'test.t1' doesn't exist create table t1 type=myisam SELECT 1,"table 1";