doc: PG 16 relnotes: move role INHERIT item and clarify it

Also split out new role ADMIN syntax entry.

Reported-by: Pavel Luzanov
Discussion: https://postgr.es/m/0ebcc8ea-7f5a-d014-d53f-e078622be35d@aklaver.com

Backpatch-through: 16 only

diff --git a/doc/src/sgml/release-16.sgml b/doc/src/sgml/release-16.sgml
index c9c4fc07ca3235240ec1da664e8d6b3e1685bcb0..c4ae566900c03988a3f51cb90898ea49607e7ed6 100644 (file)
--- a/doc/src/sgml/release-16.sgml
+++ b/doc/src/sgml/release-16.sgml
@@ -229,6 +229,24 @@ Collations and locales can vary between databases so having them as read-only se
 
 
 
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+Role inheritance now controls the default inheritance status of member roles added during GRANT (Robert Haas)
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+The role's default inheritance behavior can be overridden with the new GRANT ... WITH INHERIT clause.
+This allows inheritance of some roles and not others because the members' inheritance status is set at GRANT time.
+Previously the inheritance status of member roles was controlled only by the role's inheritance status, and
+changes to a role's inheritance status affected all previous and future member roles.
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