doc: Re-order Table 28.35 "Per-Backend Statistics Functions"

The overall order is alphabetic, but there were a few additions that
didn't observe this.

Author: Peter Smith <peter.b.smith@fujitsu.com>
Reviewed-by: David G. Johnston <david.g.johnston@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CAHut+Pv8Oa7v06hJb3+HzCtM2u-3oHWMdvXVHhvi7ofB83pNbg@mail.gmail.com

Author: petere

doc/src/sgml/monitoring.sgml

@@ -5565,19 +5565,6 @@ FROM pg_stat_get_backend_idset() AS backendid;
      </thead>
 
      <tbody>
-      <row>
-       <entry role="func_table_entry"><para role="func_signature">
-        <indexterm>
-         <primary>pg_stat_get_backend_idset</primary>
-        </indexterm>
-        <function>pg_stat_get_backend_idset</function> ()
-        <returnvalue>setof integer</returnvalue>
-       </para>
-       <para>
-        Returns the set of currently active backend ID numbers.
-       </para></entry>
-      </row>
-
       <row>
        <entry role="func_table_entry"><para role="func_signature">
         <indexterm>
@@ -5643,6 +5630,19 @@ FROM pg_stat_get_backend_idset() AS backendid;
        </para></entry>
       </row>
 
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_stat_get_backend_idset</primary>
+        </indexterm>
+        <function>pg_stat_get_backend_idset</function> ()
+        <returnvalue>setof integer</returnvalue>
+       </para>
+       <para>
+        Returns the set of currently active backend ID numbers.
+       </para></entry>
+      </row>
+
       <row>
        <entry role="func_table_entry"><para role="func_signature">
         <indexterm>
@@ -5685,29 +5685,29 @@ FROM pg_stat_get_backend_idset() AS backendid;
       <row>
        <entry role="func_table_entry"><para role="func_signature">
         <indexterm>
-         <primary>pg_stat_get_backend_wait_event_type</primary>
+         <primary>pg_stat_get_backend_wait_event</primary>
         </indexterm>
-        <function>pg_stat_get_backend_wait_event_type</function> ( <type>integer</type> )
+        <function>pg_stat_get_backend_wait_event</function> ( <type>integer</type> )
         <returnvalue>text</returnvalue>
        </para>
        <para>
-        Returns the wait event type name if this backend is currently waiting,
-        otherwise NULL.  See <xref linkend="wait-event-table"/> for details.
+        Returns the wait event name if this backend is currently waiting,
+        otherwise NULL. See <xref linkend="wait-event-activity-table"/> through
+        <xref linkend="wait-event-timeout-table"/>.
        </para></entry>
       </row>
 
       <row>
        <entry role="func_table_entry"><para role="func_signature">
         <indexterm>
-         <primary>pg_stat_get_backend_wait_event</primary>
+         <primary>pg_stat_get_backend_wait_event_type</primary>
         </indexterm>
-        <function>pg_stat_get_backend_wait_event</function> ( <type>integer</type> )
+        <function>pg_stat_get_backend_wait_event_type</function> ( <type>integer</type> )
         <returnvalue>text</returnvalue>
        </para>
        <para>
-        Returns the wait event name if this backend is currently waiting,
-        otherwise NULL. See <xref linkend="wait-event-activity-table"/> through
-        <xref linkend="wait-event-timeout-table"/>.
+        Returns the wait event type name if this backend is currently waiting,
+        otherwise NULL.  See <xref linkend="wait-event-table"/> for details.
        </para></entry>
       </row>