doc: Move ALTER TABLE IF EXISTS description to better place

It was previously mixed in with the description of ALTER TABLE
subcommands.  Move it to the Parameters section, which is where it is on
other reference pages.

pointed out by Amit Langote

diff --git a/doc/src/sgml/ref/alter_table.sgml b/doc/src/sgml/ref/alter_table.sgml
index 6a82730a4b4a6e8161a99589b6e1e50488ccde60..ff032bc283d4cadfc7828ebe41de20c82affee04 100644 (file)
--- a/doc/src/sgml/ref/alter_table.sgml
+++ b/doc/src/sgml/ref/alter_table.sgml
@@ -121,16 +121,6 @@ ALTER TABLE ALL IN TABLESPACE <replaceable class="PARAMETER">name</replaceable>
     </listitem>
    </varlistentry>
 
-   <varlistentry>
-    <term><literal>IF EXISTS</literal></term>
-    <listitem>
-     <para>
-      Do not throw an error if the table does not exist. A notice is issued
-      in this case.
-     </para>
-    </listitem>
-   </varlistentry>
-
    <varlistentry>
     <term><literal>SET DATA TYPE</literal></term>
     <listitem>
@@ -726,6 +716,16 @@ ALTER TABLE ALL IN TABLESPACE <replaceable class="PARAMETER">name</replaceable>
 
     <variablelist>
 
+     <varlistentry>
+      <term><literal>IF EXISTS</literal></term>
+      <listitem>
+       <para>
+        Do not throw an error if the table does not exist. A notice is issued
+        in this case.
+       </para>
+      </listitem>
+     </varlistentry>
+
      <varlistentry>
       <term><replaceable class="PARAMETER">name</replaceable></term>
       <listitem>