doc: PG 16 relnotes, improve description of standby log. decode

Improve description of "Allow logical decoding on standbys".

diff --git a/doc/src/sgml/release-16.sgml b/doc/src/sgml/release-16.sgml
index 1e1b67d01878b01ee2a25ebbc264b89e3f3ea4fa..6481076402a500393fcfbc021ad9ea6ebd3ec2bc 100644 (file)
--- a/doc/src/sgml/release-16.sgml
+++ b/doc/src/sgml/release-16.sgml
@@ -1305,8 +1305,8 @@ Allow logical decoding on standbys (Bertrand Drouvot, Andres Freund, Amit Khande
 
 <listitem>
 <para>
-New function pg_log_standby_snapshot() forces creation of WAL snapshots.
-Snapshots are required for logical slot creation so this function speeds their creation on standbys.
+Snapshot WAL records are required for logical slot creation but cannot be created on standbys.
+The new function pg_log_standby_snapshot() creates such records, which speeds logical slot creation on standbys.
 </para>
 </listitem>