sql query
In version 3.23.49a when using an innodb table, "alter table" appears to
corrupt foreign key constraints. Try the following test case:
"
create table test_base (
base_id int not null,
primary key (base_id)
) type = innodb;
create table test_ref (
base_id int not null,
ref_id int not null,
primary key (base_id, ref_id),
foreign key (base_id) references test_base (base_id)
) type = innodb;
insert test_base (base_id) values (1);
insert test_ref (base_id, ref_id) values (1, 1);
alter table test_base add column value int not null;
insert test_ref (base_id, ref_id) values (1, 2);
"
The final insert fails with
"
mysql> insert test_ref (base_id, ref_id) values (1, 2);
ERROR 1216: Cannot add a child row: a foreign key constraint fails
"
which suggests that the foreign key constraint has become hosed?
Chuck
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