--source include/have_innodb.inc create table t1(f1 int not null, f2 int not null, f3 int not null)engine=innodb; insert into t1 values(1, 2, 3),(4, 5, 6); alter table t1 drop column f2, algorithm=instant; select * from t1; insert into t1 values(1,2); select * from t1; alter table t1 add column f4 int not null default 5, algorithm=instant; select * from t1; alter table t1 drop column f1, algorithm=instant; select * from t1; insert into t1 values(7, 9); select * from t1; alter table t1 add column f5 blob default repeat('aaa', 950), drop column f4, algorithm=instant; select * from t1; select f3 from t1; update t1 set f3 = 10 where f3 > 2; select * from t1; delete from t1 where f3 = 10; show create table t1; select f3 from t1; update t1 set f5 = 'world'; select * from t1; drop table t1; create table t1(f1 int, f2 int not null, index idx(f2))engine=innodb; insert into t1 values(1, 2); alter table t1 drop column f1, add column f3 varchar(100) default 'thiru', algorithm=instant; select * from t1 force index (idx); alter table t1 drop column f3, algorithm=instant; select * from t1; begin; insert into t1 values(10); select * from t1; update t1 set f2 = 100; select * from t1; delete from t1 where f2 = 100; select * from t1; rollback; select * from t1; show create table t1; drop table t1; create table t1(f1 int, f2 int not null)engine=innodb; insert into t1 values(1, 2); alter table t1 drop column f2, algorithm=instant; insert into t1 values(NULL); select * from t1; drop table t1; create table t1(f1 int not null, f2 int not null)engine=innodb; insert into t1 values(1, 2); alter table t1 add column f5 int default 10, algorithm=instant; alter table t1 add column f3 int not null default 100, algorithm=instant; alter table t1 add column f4 int default 100, drop column f3, algorithm=instant; insert into t1 values(2, 3, 20, 100); select * from t1; drop table t1; create table t1(f1 int not null, f2 int not null) engine=innodb; insert into t1 values(1, 1); alter table t1 drop column f2, add column f3 int default 3, algorithm=instant; select * from t1; update t1 set f3 = 19; select * from t1; alter table t1 drop column f1, add column f5 tinyint default 10 first, algorithm=instant; insert into t1 values(4, 10); select * from t1; create table t2(f1 int, f2 int not null) engine=innodb; insert into t2(f1, f2) values(1, 2); alter table t2 drop column f2, add column f4 varchar(100) default repeat('a', 20), add column f5 int default 10, algorithm=instant; select * from t2; show create table t2; alter table t2 add column f6 char(100) default repeat('a', 99), algorithm=instant; create table t3(f1 int, f2 int not null)engine=innodb; insert into t3 values(1, 2); alter table t3 drop column f2, add column f3 int default 1, add column f4 int default 4, algorithm=instant; create table t4(a varchar(1), b int, c int, primary key(a,b))engine=innodb; insert into t4 values('4',5,6); alter table t4 drop column c; --source include/restart_mysqld.inc select * from t1; alter table t1 add column f6 int default 9,drop column f5, algorithm = instant; insert into t1 values(4, 9); alter table t1 force, algorithm=inplace; select * from t1; select * from t2; alter table t2 force, algorithm=inplace; select * from t2; show create table t2; select * from t3; alter table t3 add column f5 char(100) default repeat('a', 99), algorithm=instant; select * from t4; alter table t4 add column d varchar(5) default 'fubar'; insert into t4 values('',0,'snafu'); --source include/restart_mysqld.inc select * from t3; select * from t4; drop table t1,t2,t3,t4;