On Oct 9, 2009, at 9:57 AM, Takeichi Kanzaki Cabrera wrote:
Hi everybody, I need your help. I have a hierarchy of tables, and other table that has a foreign key with the top table of the hierarchy, can I insert a value into the "other" table where the value it reference is not on the parent table? (it's in one of its child)
No, foreign key checks do not (yet) follow inheritance hierarchies. Here's the specific clause in the manual (http://www.postgresql.org/docs/8.4/interactive/ddl-inherit.html ) that covers this:
"All check constraints and not-null constraints on a parent table are automatically inherited by its children. Other types of constraints (unique, primary key, and foreign key constraints) are not inherited."
Erik Jones, Database Administrator Engine Yard Support, Scalability, Reliability 866.518.9273 x 260 Location: US/Pacific IRC: mage2k -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
