DROP TABLE IF EXISTS t1,t2,t3,t4,t5,t6,t7;
create table t1 (x integer not null primary key, y varchar(32)) engine = ndb;
insert into t1 values (1,'one'), (2,'two');
select * from t1 order by x;
x	y
1	one
2	two
select * from t1 order by x;
x	y
1	one
2	two
start transaction;
insert into t1 values (3,'three');
select * from t1 order by x;
x	y
1	one
2	two
3	three
start transaction;
select * from t1 order by x;
x	y
1	one
2	two
commit;
select * from t1 order by x;
x	y
1	one
2	two
3	three
commit;
drop table t1;
create table t1 (pk integer not null primary key, u int not null, o int not null, 
unique(u), key(o)) engine = ndb;
insert into t1 values (1,1,1), (2,2,2), (3,3,3), (4,4,4), (5,5,5);
lock tables t1 write;
delete from t1 where pk = 1;
unlock tables;
select * from t1 order by pk;
pk	u	o
2	2	2
3	3	3
4	4	4
5	5	5
insert into t1 values (1,1,1);
lock tables t1 write;
delete from t1 where u = 1;
unlock tables;
select * from t1 order by pk;
pk	u	o
2	2	2
3	3	3
4	4	4
5	5	5
insert into t1 values (1,1,1);
lock tables t1 write;
delete from t1 where o = 1;
unlock tables;
select * from t1 order by pk;
pk	u	o
2	2	2
3	3	3
4	4	4
5	5	5
insert into t1 values (1,1,1);
drop table t1;