Index: branches/version-2_5-dev/html/install/sql/create_table_mysql.sql
===================================================================
--- branches/version-2_5-dev/html/install/sql/create_table_mysql.sql	(revision 18882)
+++ branches/version-2_5-dev/html/install/sql/create_table_mysql.sql	(revision 18916)
@@ -308,5 +308,5 @@
     product_id int NOT NULL,
     class_combination_id int,
-    product_type_id smallint NOT NULL,
+    product_type_id smallint NOT NULL DEFAULT 0,
     product_code text,
     stock numeric,
Index: branches/version-2_5-dev/html/install/sql/create_table_pgsql.sql
===================================================================
--- branches/version-2_5-dev/html/install/sql/create_table_pgsql.sql	(revision 18882)
+++ branches/version-2_5-dev/html/install/sql/create_table_pgsql.sql	(revision 18916)
@@ -308,5 +308,5 @@
     product_id int NOT NULL,
     class_combination_id int,
-    product_type_id int NOT NULL,
+    product_type_id int NOT NULL DEFAULT 0,
     product_code text,
     stock numeric,