This patch fixes a small error in the Porting PL/SQL to PL/pgSQL

section where a instr function parameter is mistyped as varchar. It
works properly when changed to integer.

Michael Glaesemann

doc/src/sgml/plpgsql.sgml

 <!--
-$PostgreSQL: pgsql/doc/src/sgml/plpgsql.sgml,v 1.40 2004/07/11 21:48:24 momjian Exp $
+$PostgreSQL: pgsql/doc/src/sgml/plpgsql.sgml,v 1.41 2004/07/11 23:26:51 momjian Exp $
 -->
 
 <chapter id="plpgsql"> 
@@ -2957,7 +2957,7 @@ END;
 $$ LANGUAGE plpgsql;
 
 
-CREATE FUNCTION instr(varchar, varchar, varchar) RETURNS integer AS $$
+CREATE FUNCTION instr(varchar, varchar, integer) RETURNS integer AS $$
 DECLARE
     string ALIAS FOR $1;
     string_to_search ALIAS FOR $2;