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-rw-r--r--doc/src/sgml/ref/vacuum.sgml4
1 files changed, 3 insertions, 1 deletions
diff --git a/doc/src/sgml/ref/vacuum.sgml b/doc/src/sgml/ref/vacuum.sgml
index eb71581dfd2..1e984734d93 100644
--- a/doc/src/sgml/ref/vacuum.sgml
+++ b/doc/src/sgml/ref/vacuum.sgml
@@ -102,7 +102,9 @@ VACUUM [ FULL ] [ FREEZE ] [ VERBOSE ] ANALYZE [ <replaceable class="PARAMETER">
Specifying <literal>FREEZE</literal> is equivalent to performing
<command>VACUUM</command> with the
<xref linkend="guc-vacuum-freeze-min-age"> parameter
- set to zero.
+ set to zero. Aggressive freezing is always performed when the
+ table is rewritten, so this option is redundant when <literal>FULL</>
+ is specified.
</para>
</listitem>
</varlistentry>