Hi,
I have this function which swaps primary keys for cabin_types (so that
id_cabin_type ordering reflects natural data ordering):
CREATE OR REPLACE FUNCTION swap_cabin_types(id1 integer, id2 integer) RETURNS integer AS $$declare tmp
integer;begin tmp := nextval('cabin_type_id_cabin_type_seq'); update cabin_type set id_cabin_type=tmp where
id_cabin_type=id1; update cabin_type set id_cabin_type=id1 where id_cabin_type=id2; update cabin_type set
id_cabin_type=id2where id_cabin_type=tmp; return tmp;end;$$LANGUAGE plpgsql;
'id_cabin_type' is a foreign key for two other tables, 'cabin_category'
and 'alert_cabin_type', which have an "on update cascade" clause.
When I run that function it seems the foreign keys are not properly
updated and the data ends up in a mess.
Did I forget something?
Thanks,
