This gitlab issue where they disabled it on one of their tables helped me a lot with understanding and debugging the problem: https://gitlab.com/gitlab-com/gl-i

This gitlab issue where they disabled it on one of their tables helped me a lot with understanding and debugging the problem: https://gitlab.com/gitlab-com/gl-infra/production/-/issues/7840 https://gitlab.com/gitlab-com/gl-infra/production/-/issues/7... It’s not a super well-documented feature in postgres, so I also wound up doing some digging in the mailing lists, but I was really appreciative of all the detail in that GL issue and the associated links.