On Wed, 2010-12-15 at 12:17 +0100, Csaba Nagy wrote:
> But one problem would be when the replaced table is the _parent_ for a
> foreign key relationship. I don't think you can have that constraint
> pre-verified on the replacement table and simply replacing the content
> could leave the child relations with orphans.
Good point.
The only sensible way to handle this is by putting the FK checks into
check pending state (as discussed on a different thread).
We would probably need to disallow FKs with DELETE or UPDATE CASCADE
since it would be difficult to execute those.
-- Simon Riggs http://www.2ndQuadrant.com/books/PostgreSQL Development, 24x7 Support, Training and Services
