Index: openacs-4/packages/notifications/sql/postgresql/upgrade/upgrade-5.1.0d2-5.1.0d3.sql
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/notifications/sql/postgresql/upgrade/upgrade-5.1.0d2-5.1.0d3.sql,v
diff -u -N -r1.2 -r1.3
--- openacs-4/packages/notifications/sql/postgresql/upgrade/upgrade-5.1.0d2-5.1.0d3.sql	24 Jul 2004 08:34:44 -0000	1.2
+++ openacs-4/packages/notifications/sql/postgresql/upgrade/upgrade-5.1.0d2-5.1.0d3.sql	30 Mar 2013 18:50:28 -0000	1.3
@@ -10,13 +10,21 @@
 -- see Bug http://openacs.org/bugtracker/openacs/bug?filter%2estatus=resolved&filter%2eactionby=6815&bug%5fnumber=260
 -- @author Peter Marklund
 
-create or replace function safe_drop_cosntraint(name, name)
-returns integer as '
-declare
-    p_table_name          alias for $1;
-    p_constraint_name     alias for $2;
+
+
+-- added
+select define_function_args('safe_drop_cosntraint','table_name,constraint_name');
+
+--
+-- procedure safe_drop_cosntraint/2
+--
+CREATE OR REPLACE FUNCTION safe_drop_cosntraint(
+   p_table_name name,
+   p_constraint_name name
+) RETURNS integer AS $$
+DECLARE
     v_constraint_p        integer;
-begin
+BEGIN
     select count(*)
     into   v_constraint_p
     from   pg_constraint con, pg_class c
@@ -25,11 +33,12 @@
     and    c.relname = p_table_name;
 
     if v_constraint_p > 0 then
-        execute ''alter table '' || p_table_name || '' drop constraint '' || p_constraint_name;
+        execute 'alter table ' || p_table_name || ' drop constraint ' || p_constraint_name;
     end if;
 
     return 0;
-end;' language 'plpgsql';
+END;
+$$ LANGUAGE plpgsql;
 
 -- Add on delete cascade to notifications.notif_notif_id_fk foreign key constraint