lib/rom/sql/extensions/postgres/commands.rb in rom-sql-1.0.0.rc1 vs lib/rom/sql/extensions/postgres/commands.rb in rom-sql-1.0.0.rc2

@@ -93,10 +93,10 @@
           def execute(tuples)
             inserted_tuples = with_input_tuples(tuples) do |tuple|
               upsert(input[tuple], upsert_options)
             end
 
-            inserted_tuples.flatten
+            inserted_tuples.flatten(1)
           end
 
           # @api private
           def upsert_options
             @upsert_options ||= {