Fix XML id to match containing page

This was apparently a typo when this part of the documentation was
first added.

doc/src/sgml/logical-replication.sgml

@@ -133,7 +133,7 @@
    fallback if no other solution is possible.  If a replica identity other
    than <quote>full</quote> is set on the publisher side, a replica identity
    comprising the same or fewer columns must also be set on the subscriber
-   side.  See <xref linkend="sql-createtable-replica-identity"/> for details on
+   side.  See <xref linkend="sql-altertable-replica-identity"/> for details on
    how to set the replica identity.  If a table without a replica identity is
    added to a publication that replicates <command>UPDATE</command>
    or <command>DELETE</command> operations then

doc/src/sgml/logicaldecoding.sgml

@@ -24,7 +24,7 @@
    by <command>INSERT</command> and the new row version created
    by <command>UPDATE</command>.  Availability of old row versions for
    <command>UPDATE</command> and <command>DELETE</command> depends on
-   the configured replica identity (see <xref linkend="sql-createtable-replica-identity"/>).
+   the configured replica identity (see <xref linkend="sql-altertable-replica-identity"/>).
   </para>
 
   <para>

doc/src/sgml/ref/alter_table.sgml

@@ -811,7 +811,7 @@ WITH ( MODULUS <replaceable class="parameter">numeric_literal</replaceable>, REM
     </listitem>
    </varlistentry>
 
-   <varlistentry id="sql-createtable-replica-identity">
+   <varlistentry id="sql-altertable-replica-identity">
     <term><literal>REPLICA IDENTITY</literal></term>
     <listitem>
      <para>

doc/src/sgml/ref/psql-ref.sgml

@@ -1182,7 +1182,7 @@ testdb=>
         more information is displayed: any comments associated with the
         columns of the table are shown, as is the presence of OIDs in the
         table, the view definition if the relation is a view, a non-default
-        <link linkend="sql-createtable-replica-identity">replica
+        <link linkend="sql-altertable-replica-identity">replica
          identity</link> setting and the
         <link linkend="sql-create-access-method">access method</link> name
         if the relation has an access method.