On 11/04/2013 11:44 AM, Jason Long wrote:
I would like for corresponding records in t_a to be deleted when I delete a record from t_b. This deletes from t_b when I delete from t_a, but not the other way around. I am unable to create a foreign key constraint on t_a because this table holds records from several other tables. I added a simple script below that demonstrates my problem.
As I sent my previous post, it dawned on me what I think you where trying to say. That the id field has values that have relevance to tables other than t_b and would not be accepted by a FK to ta_b. In other words what you are looking for is a conditional FK relationship between t_a and t_b. AFAIK to get that you will have to roll your own trigger on t_b.
-- Adrian Klaver adrian.klaver@xxxxxxxxx -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
