I’ve checked the discourse/INSTALL.md at main · discourse/discourse · GitHub documentation instead, as Cloud documentation doesn’t have server requirements at all.
We see “Postgres 13+” requirement here. May I be wrong by suggesting to your team to add a notice that Discourse supports 13.X versions only? Maybe, explicit notice of 14/15/… versions are not supported would be helpful too in such cases like ours.
You see, we had Version 14 for at least since December, and we had Stable version of Discourse installed since months earlier. Recently we moved back to tests-passed version, searched worked as expected. Today, we updated from 2.9.0.beta14 to 3.1.0.beta1 and now it’s broken.