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-rw-r--r--doc/src/sgml/ref/drop_statistics.sgml14
1 files changed, 13 insertions, 1 deletions
diff --git a/doc/src/sgml/ref/drop_statistics.sgml b/doc/src/sgml/ref/drop_statistics.sgml
index f58c3d6d221..1532ca95847 100644
--- a/doc/src/sgml/ref/drop_statistics.sgml
+++ b/doc/src/sgml/ref/drop_statistics.sgml
@@ -21,7 +21,7 @@ PostgreSQL documentation
<refsynopsisdiv>
<synopsis>
-DROP STATISTICS [ IF EXISTS ] <replaceable class="parameter">name</replaceable> [, ...]
+DROP STATISTICS [ IF EXISTS ] <replaceable class="parameter">name</replaceable> [, ...] [ CASCADE | RESTRICT ]
</synopsis>
</refsynopsisdiv>
@@ -59,6 +59,18 @@ DROP STATISTICS [ IF EXISTS ] <replaceable class="parameter">name</replaceable>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><literal>CASCADE</literal></term>
+ <term><literal>RESTRICT</literal></term>
+
+ <listitem>
+ <para>
+ These key words do not have any effect, since there are no dependencies
+ on statistics.
+ </para>
+ </listitem>
+ </varlistentry>
+
</variablelist>
</refsect1>