Doc: vacuum_multixact_failsafe_age is multixact-based.

petergeoghegan · petergeoghegan · commit e1cdf61726e8 · 2021-07-19T17:20:24.000-07:00
Oversight in commit 1e55e7d, which added a wraparound failsafe mechanism to VACUUM. Backpatch: 14-, where VACUUM failsafe was introduced.
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
@@ -8799,7 +8799,7 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
       </term>
       <listitem>
        <para>
-        Specifies the maximum age (in transactions) that a table's
+        Specifies the maximum age (in multixacts) that a table's
         <structname>pg_class</structname>.<structfield>relminmxid</structfield>
         field can attain before <command>VACUUM</command> takes
         extraordinary measures to avoid system-wide multixact ID
