On Fri, Oct 3, 2008 at 8:56 AM, Rob Richardson
<Rob(dot)Richardson(at)rad-con(dot)com> wrote:
> No, because the application first saves the coils and then saves the
> charge. Setting up the foreign key constraint would prevent any coils
> from being saved because the charge record would never exist at the time
> the coil record was created.
You should be able to set your constraints to deferrable initially
deferred and get proper behaviour even with that update system.