I guess lighthouse is too full to find important tickets.
But as I see it, this is quite an important issue to fix. (so worth shouting on here about)
Notably with version 9.0.1 (the current stable version) of Postgres Rails incorrectly returns
supports_disable_referential_integrity? false
consequently test fixtures do not work when using foreign keys.
https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/5635-postgresql_adapter-doesnt-disable-referential-integrity-for-pg-90#ticket-5635-5 https://github.com/rails/rails/pull/122