On Tue, Feb 14, 2023 at 2:21 PM Tom Lane <t...@sss.pgh.pa.us> wrote: > This made me wonder if this could be a usable solution at all, but > after thinking for awhile, I don't see how the claim about foreign key > constraints is anything but FUD. pg_dump/pg_restore have sufficient > dependency logic to prevent that from happening. I think we can just > drop the "or perhaps ..." clause here, and tolerate the possible > inefficiency as better than failing.
Right, but isn't that dependency logic based around the fact that the inserts are targeting the original partition? Like, suppose partition A has a foreign key that is not present on partition B. A row that is originally in partition B gets rerouted into partition A. It must now satisfy the foreign key constraint when, previously, that was unnecessary. -- Robert Haas EDB: http://www.enterprisedb.com
