doc: PG 16 relnotes, merge and adjust CREATEROLE items

Bruce Momjian <bruce@momjian.us>

Commit: 6e1d1c58488e685370de0becc5a81d6502a8e099
Author: Bruce Momjian <bruce@momjian.us>
Date: 2023-08-09T22:01:50Z
Releases: 16.0
doc: PG 16 relnotes, merge and adjust CREATEROLE items

Reported-by: Noah Misch

Discussion: https://postgr.es/m/20230805230847.GA1370050@rfd.leadboat.com

Backpatch-through: 16 only

Files

PathChange+/−
doc/src/sgml/release-16.sgml modified +18 −31

Documentation touched