It would be a boon to the community if someone were to put together a web/wiki page or mini-app that details this kind of information and, if considered accurate and relevant enough by the community, link to that more globally while also remove the random and incomplete references of this nature from the main documentation. As it stands the info is at least relevant, and its incompleteness doesn't cause enough grief, IMO, to warrant its outright removal absent there existing an alternative.
Oracle DOCs or MySQL DOCs or any other have these comparisons ? I don't think so, so why does Postgres have to mention it ?
All these places, and others I didn't find, I think it's correct to say Postgres' way of doing that, not what is different from Oracle.
