Index: openacs-4/packages/acs-kernel/sql/oracle/upgrade/upgrade-5.6.0d3-5.6.0d4.sql
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-kernel/sql/oracle/upgrade/upgrade-5.6.0d3-5.6.0d4.sql,v
diff -u -r1.3 -r1.4
--- openacs-4/packages/acs-kernel/sql/oracle/upgrade/upgrade-5.6.0d3-5.6.0d4.sql	6 Jan 2010 20:07:24 -0000	1.3
+++ openacs-4/packages/acs-kernel/sql/oracle/upgrade/upgrade-5.6.0d3-5.6.0d4.sql	10 Mar 2010 00:34:58 -0000	1.4
@@ -1,8 +1,4 @@
-alter table acs_data_links add relation_tag varchar2(100);
-
-create index acs_data_links_rel_tag_idx on acs_data_links (relation_tag);
-
-alter table acs_data_links drop constraint acs_data_links_un;
-
-alter table acs_data_links add constraint acs_data_links_un unique 
-(object_id_one, object_id_two, relation_tag);
\ No newline at end of file
+alter table apm_package_dependencies drop constraint apm_package_deps_type_ck;
+alter table apm_package_dependencies add
+  constraint apm_package_deps_type_ck
+  check (dependency_type in ('provides', 'requires', 'extends', 'embeds'));