I noticed that the word "procedure" appears in at least a few places
in the v11 docs as a not-quite-apt synonym of "function". For example,
https://www.postgresql.org/docs/11/static/plpgsql-trigger.html talks
about "PL/pgSQL Trigger Procedures" which are actually all functions
in practice.
I think that this has the potential to confuse users, since, of
course, a function is a distinct variety of object to a procedure in
v11. Tightening up the wording seems like a good idea. I'm not sure if
this was discussed already, but didn't find anything during a quick
search.
--
Peter Geoghegan