Alvaro Herrera <alvhe...@2ndquadrant.com> writes: > On 2019-Feb-09, Tom Lane wrote: >> Well, the question that's begged here is exactly why it's okay to remove >> the trigger and dependency link despite the fact that the constraint needs >> it. I suppose the answer is that we'll subsequently insert a new trigger >> implementing the same constraint (and internally-linked to it)? That >> information is what I'd like to have in the comment.
> Well, the answer is that the trigger is no longer needed. This is an > action trigger, i.e. it's attached to the referenced relation; and the > action is making an independent table become a partition. Since the > partition is reachable by the action trigger that goes through the > parent table, we no longer need the action trigger that goes directly to > the partition. Oh ... then why don't we go ahead and get rid of the constraint entry, too? regards, tom lane