Disable FK constarints

[Prestation3.EXPLOITATION@xxxxxxxxxx]

Hi,

I try to load an entire database ( from Oracle via ora2pg )
create table is OK
there are some FK's  in the database

I did insert's with :
BEGIN TRANSACTION;
SET CONSTRAINTS ALL DEFERRED;
insert ...
END TRANSACTION;

I get:
ERROR:  insert or update on table "transactions" violates foreign key 
constraint


How can I get rid off the FK CONSTRAINTS during the load ???

Thanks in advance...