Doc: add note about --buffer-usage-limit being v16 onwards

Other vacuumdb options seem to have notes about which version they're available from, so let's follow this trend for the newly added --buffer-usage-limit option.
2 years ago · e9f451accb
parent c0235013c1
commit e9f451accb
1 changed files with 6 additions and 0 deletions
--- a/doc/src/sgml/ref/vacuumdb.sgml
+++ b/doc/src/sgml/ref/vacuumdb.sgml
@ -131,6 +131,12 @@ PostgreSQL documentation
        This size is used to calculate the number of shared buffers which will
        be reused as part of this strategy.  See <xref linkend="sql-vacuum"/>.
       </para>
+       <note>
+        <para>
+         This option is only available for servers running
+         <productname>PostgreSQL</productname> 16 and later.
+        </para>
+       </note>
      </listitem>
     </varlistentry>