Index: openacs-4/packages/news-aggregator/sql/postgresql/news-aggregator-tables-create.sql
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/news-aggregator/sql/postgresql/news-aggregator-tables-create.sql,v
diff -u -N -r1.3 -r1.4
--- openacs-4/packages/news-aggregator/sql/postgresql/news-aggregator-tables-create.sql	7 Jun 2016 09:49:05 -0000	1.3
+++ openacs-4/packages/news-aggregator/sql/postgresql/news-aggregator-tables-create.sql	4 Apr 2019 08:56:26 -0000	1.4
@@ -132,6 +132,7 @@
 
 create index na_items_guid_idx on na_items(guid);
 create index na_items_source_id_idx on na_items(source_id);
+ALTER TABLE na_items ADD CONSTRAINT na_items_unique_guid UNIQUE (guid,source_id);
 
 create table na_saved_items (
        item_id			    integer