On Wed, May 10, 2023 at 10:06:28PM -0700, Wells Oliver wrote: > As a follow up, I've selected max(common_key) from the table and > setval()'ed on the sequence to that +1 and I think that should make this go > away. Any reason why that's insane? If you're on pg 10 or newer, you can make the id to be "generated always as identity" which will make it impossible to provide id value from user, thus making the problem impossible to happen. Best regards, depesz