mariadb/mysql-test/suite/innodb/t/innodb_bug57255.test

--source include/have_innodb.inc
# Test Bug #57255. Cascade deletes that affect different rows should not
# result in DB_FOREIGN_EXCEED_MAX_CASCADE error


create table A(id int not null primary key) engine=innodb;

create table B(id int not null auto_increment primary key, f1 int not null, foreign key(f1) references A(id) on delete cascade) engine=innodb;

create table C(id int not null auto_increment primary key, f1 int not null, foreign key(f1) references B(id) on delete cascade) engine=innodb;

insert into A values(1), (2);

--disable_query_log
begin;
let $i=257;
while ($i)
{
insert into B(f1) values(1);
dec $i;
}
let $i=486;
while ($i)
{
insert into C(f1) values(2);
dec $i;
}
commit;
--enable_query_log

# Following Deletes should not report error
DELETE FROM A where id = 1;
DELETE FROM C where f1 = 2;
DELETE FROM A where id = 1;

DROP TABLE C;
DROP TABLE B;
DROP TABLE A;