Edit File: heap_auto_increment.result
drop table if exists t1; create table t1 (a int not null auto_increment,b int, primary key (a)) engine=heap auto_increment=3; insert into t1 values (1,1),(NULL,3),(NULL,4); delete from t1 where a=4; insert into t1 values (NULL,5),(NULL,6); select * from t1; a b 1 1 3 3 5 5 6 6 delete from t1 where a=6; replace t1 values (3,1); ALTER TABLE t1 add c int; replace t1 values (3,3,3); insert into t1 values (NULL,7,7); update t1 set a=8,b=b+1,c=c+1 where a=7; insert into t1 values (NULL,9,9); select * from t1; a b c 1 1 NULL 3 3 3 5 5 NULL 8 8 8 9 9 9 drop table t1; create table t1 ( skey tinyint unsigned NOT NULL auto_increment PRIMARY KEY, sval char(20) ) engine=heap; insert into t1 values (NULL, "hello"); insert into t1 values (NULL, "hey"); select * from t1; skey sval 1 hello 2 hey select _rowid,t1._rowid,skey,sval from t1; _rowid _rowid skey sval 1 1 1 hello 2 2 2 hey drop table t1;