Re: DETACH PARTITION and FOR EACH ROW triggers on partitioned tables

Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> writes:
> Hmm. Let's agree to what behavior we want, and then we implement that.
> It seems to me there are two choices:

> 1. on detach, keep the trigger but make it independent of the trigger on
> parent. (This requires that the trigger is made dependent on the
> trigger on parent, if the table is attached as partition again;
> otherwise you'd end up with multiple copies of the trigger if you
> detach/attach multiple times).

> 2. on detach, remove the trigger from the partition.

> I think (2) is easier to implement, but (1) is the more convenient
> behavior.

I think that #1 would soon lead to needing all the same infrastructure
as we have for inherited columns and constraints, ie triggers would need
equivalents of attislocal and attinhcount. I don't really want to go
there, so I'd vote for #2.

regards, tom lane