diff --git a/metacat/db/dbobjects2.py b/metacat/db/dbobjects2.py
index eb3fea7..23e4733 100755
--- a/metacat/db/dbobjects2.py
+++ b/metacat/db/dbobjects2.py
@@ -244,8 +244,8 @@ def sql_for_basic_query(db, basic_file_query, include_retired=False):
         limit = basic_file_query.Limit
         limit = "" if limit is None else f"limit {limit}"
         offset = "" if not basic_file_query.Skip else f"offset {basic_file_query.Skip}"
-        #order = f"order by {f}.id" if basic_file_query.Skip or basic_file_query.Limit or basic_file_query.Ordered else ""
-        order = f"order by {f}.id" if basic_file_query.Ordered else ""
+        #order = f"order by {f}.created_timestamp,{f}.id" if basic_file_query.Skip or basic_file_query.Limit or basic_file_query.Ordered else ""
+        order = f"order by {f}.created_timestamp,{f}.id" if basic_file_query.Ordered else ""
         
         debug("sql_for_basic_query: offset:", offset)
 
diff --git a/metacat/db/schema.sql b/metacat/db/schema.sql
index 5bd8be3..289318f 100755
--- a/metacat/db/schema.sql
+++ b/metacat/db/schema.sql
@@ -74,6 +74,9 @@ create index files_creator on files(creator);
 create index files_created_timestamp on files(created_timestamp);
 create index files_size on files(size);
 create index files_name on files(name) include (namespace, id);
+create index files_ns_create on files using btree  (namespace , created_timestamp);
+
+
 
 create table parent_child
 (