could someone please explain to me the mechanics of an UpDate:Cascade? Delete:Cascade I fully understand but not Update. I have 2 tables A and B. On B I have created a foreign key on user_id in both B and A for Update and Delete cascade. If I delete from A it deletes all from B. If I update A what happens in B?
many thanks
---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
