Tom Lane wrote:
>> We already have system triggers -- the FK triggers. I don't think we've
>> had all that much trouble with them.
>>
>
> In the case of the FK triggers, it's intentional (and maybe even
> documented) that users should be able to place their own triggers before
> or after the FK triggers.
If it's documented I think it's well hidden ;-) ISTM that the fact that
we implement FK constraints via triggers is really an implementation
detail, not something the user should be encouraged to mess with.
> Is there a good reason why partitioning
> triggers should be different?
>
Probably not. ISTM that the scheme should turn tgisconstraint into a
multi-valued item (tgkind: 'u' = userland, 'c'= constraint, 'p' =
partition or some such).
cheers
andrew