config root man

-- source include/have_ndb.inc

create table parent (
  a int primary key,
  b int not null,
  c int not null,
  unique(b) using hash,
  index(c)) engine = ndb;

create table child (
  a int primary key,
  b int not null,
  c int not null,
  unique(b) using hash,
  index(c)) engine = ndb;

###
# Test that you can't create a FK that violates constraint to start off
#
# NOTE: these tests use ndb_tools to create/drop FK
#       as doing it by alter table, would currently mean an offline alter
#       which doesnt test the same code path
#
insert into parent values (1,2,3);
insert into child values (3,4,5);

--let ukname=b\$unique
--let oiname=c

--error 1452
alter table child algorithm=inplace, add constraint fkname foreign key (a) references parent(a);

--error 1452
alter table child algorithm=inplace, add constraint fkname foreign key(b) references parent(a);
--error 1452
alter table child algorithm=inplace, add constraint fkname foreign key(c) references parent(a);

--error 1452
alter table child algorithm=inplace, add constraint fkname foreign key(a) references parent(b);
--error 1452
alter table child algorithm=inplace, add constraint fkname foreign key(b) references parent(b);
--error 1452
alter table child algorithm=inplace, add constraint fkname foreign key(c) references parent(b);

#
# Now it should work...
#
insert into parent values (2,3,4);
insert into parent values (3,4,5);
insert into parent values (4,5,6);
insert into parent values (5,6,7);

alter table child algorithm=inplace, add constraint fk1 foreign key(a) references parent(a);
alter table child algorithm=inplace, add constraint fk2 foreign key(b) references parent(a);
alter table child algorithm=inplace, add constraint fk3 foreign key(c) references parent(a);
alter table child algorithm=inplace, add constraint fk4 foreign key(a) references parent(b);
alter table child algorithm=inplace, add constraint fk5 foreign key(b) references parent(b);
alter table child algorithm=inplace, add constraint fk6 foreign key(c) references parent(b);

alter table child algorithm=inplace,
drop foreign key fk1,
drop foreign key fk2,
drop foreign key fk3,
drop foreign key fk4,
drop foreign key fk5,
drop foreign key fk6;

drop table parent, child;