connection node_2;
connection node_1;
connection node_2;
CREATE TABLE t1(a int not null primary key auto_increment,b int) engine=InnoDB;
insert into t1 values (NULL,1);
connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2;
connection node_2a;
begin;
update t1 set a = 5;
connection node_2;
select * from t1;
a	b
2	1
disconnect node_2a;
connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2;
connection node_2a;
begin;
update t1 set a =5;
connection node_2;
select * from t1;
a	b
2	1
disconnect node_2a;
connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2;
connection node_2a;
begin;
update t1 set a =5, b=2;
connection node_2;
ALTER TABLE t1 ADD UNIQUE KEY b1(b);
ALTER TABLE t1 DROP KEY b1;
select * from t1;
a	b
2	1
disconnect node_2a;
connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2;
connection node_2a;
begin;
update t1 set a =5, b=2;
connect node_2b, 127.0.0.1, root, , test, $NODE_MYPORT_2;
connection node_2b;
begin;
update t1 set a =6, b=7;
connection node_2;
ALTER TABLE t1 ADD UNIQUE KEY b2(b);
ALTER TABLE t1 DROP KEY b2;
select * from t1;
a	b
2	1
disconnect node_2a;
disconnect node_2b;
connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2;
connection node_2a;
SET SESSION wsrep_on=OFF;
begin;
update t1 set a =5, b=2;
connection node_2;
ALTER TABLE t1 ADD UNIQUE KEY b3(b);
select * from t1;
a	b
2	1
disconnect node_2a;
connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2;
connection node_2a;
SET SESSION wsrep_on=OFF;
begin;
update t1 set a =5, b=2;
connection node_2;
select * from t1;
a	b
2	1
disconnect node_2a;
connection node_1;
drop table t1;