On 2019-Jul-05, Tom Lane wrote: > FWIW, I don't think there's a need for every catversion on the back branch > to look older than any catversion on HEAD. The requirement so far as the > core code is concerned is only for non-equality. Now, extension code does > often do something like "if catversion >= xxx", but in practice they're > only concerned about numbers used by released versions.
pg_upgrade also uses >= catversion comparison for a couple of things. I don't think it affects this case, but it's worth keeping in mind. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
