Remove outdated comment about relation level autovacuum freeze limits.

anarazel · anarazel · commit e946cc601c7b · 2015-10-05T16:51:04.000+02:00
The documentation for the autovacuum_multixact_freeze_max_age and autovacuum_freeze_max_age relation level parameters contained: "Note that while you can set autovacuum_multixact_freeze_max_age very small, or even zero, this is usually unwise since it will force frequent vacuuming." which hasn't been true since these options were made relation options, instead of residing in the pg_autovacuum table (834a6da). Remove the outdated sentence. Even the lowered limits from 2596d70 are high enough that this doesn't warrant calling out the risk in the CREATE TABLE docs. Per discussion with Tom Lane and Alvaro Herrera Discussion: 26377.1443105453@sss.pgh.pa.us Backpatch: 9.0- (in parts)
diff --git a/doc/src/sgml/ref/create_table.sgml b/doc/src/sgml/ref/create_table.sgml
@@ -994,9 +994,7 @@ CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } | UNLOGGED ] TABLE [ IF NOT EXI
      Custom <xref linkend="guc-autovacuum-freeze-max-age"> parameter. Note that
      autovacuum will ignore attempts to set a per-table
      <literal>autovacuum_freeze_max_age</> larger than the system-wide setting
-     (it can only be set smaller). Note that while you can set
-     <literal>autovacuum_freeze_max_age</> very small, or even zero, this is
-     usually unwise since it will force frequent vacuuming.
+     (it can only be set smaller).
      </para>
     </listitem>
    </varlistentry>
@@ -1030,10 +1028,7 @@ CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } | UNLOGGED ] TABLE [ IF NOT EXI
       Custom <xref linkend="guc-autovacuum-multixact-freeze-max-age"> parameter. Note
       that autovacuum will ignore attempts to set a per-table
       <literal>autovacuum_multixact_freeze_max_age</> larger than the
-      system-wide setting (it can only be set smaller).  Note that while you
-      can set <literal>autovacuum_multixact_freeze_max_age</> very small,
-      or even zero, this is usually unwise since it will force frequent
-      vacuuming.
+      system-wide setting (it can only be set smaller).
      </para>
     </listitem>
    </varlistentry>
