Prevent multiple queries in a single string into a single transaction

when autocommit is off, and document grouping when autocommit is on.

doc/src/sgml/libpq.sgml

@@ -1,5 +1,5 @@
 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/libpq.sgml,v 1.114 2003/03/22 03:29:05 momjian Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/libpq.sgml,v 1.115 2003/03/24 18:33:52 momjian Exp $
 -->
 
  <chapter id="libpq">
@@ -857,11 +857,8 @@ returned by the server.
 maintain the <structname>PGresult</structname> abstraction.  Use the accessor functions below to get
 at the contents of <structname>PGresult</structname>.  Avoid directly referencing the fields of the
 <structname>PGresult</structname> structure because they are subject to change in the future.
-(Beginning in <productname>PostgreSQL</productname> 6.4, the
-definition of <type>struct</> behind <structname>PGresult</> is not even provided in <filename>libpq-fe.h</>.  If you
-have old code that accesses <structname>PGresult</structname> fields directly, you can keep using it
-by including <filename>libpq-int.h</filename> too, but you are encouraged to fix the code
-soon.)
+If <quote>autocommit</quote> is on, multiple queries sent in a single
+function call are processed in a single transaction.
 </para>
 
 <variablelist>

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

@@ -1,5 +1,5 @@
 <!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/psql-ref.sgml,v 1.86 2003/03/24 14:32:51 petere Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/psql-ref.sgml,v 1.87 2003/03/24 18:33:52 momjian Exp $
 PostgreSQL documentation
 -->
 
@@ -86,6 +86,11 @@ PostgreSQL documentation
       meta-commands. To achieve that, you could pipe the string into
       <application>psql</application>, like this: <literal>echo "\x \\
       select * from foo;" | psql</literal>.
+      </para>
+      <para>
+      If <quote>autocommit</quote> is on, multiple queries in a single
+      string are processed in a single transaction.
+
       </para>
       </listitem>
     </varlistentry>