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

bmomjian · bmomjian · commit ac298d3cb56b · 2023-05-21T23:39:50.000-04:00
Improve description of "Allow logical decoding on standbys".
diff --git 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>
 
