diff --git a/tests/db/__init__.py b/tests/db/__init__.py
index d9bcb227a3a51feececd247c28f4f12c271d2a29..9ac277d87883777a2f82af3751188d3d437aa840 100644
--- a/tests/db/__init__.py
+++ b/tests/db/__init__.py
@@ -22,7 +22,8 @@ class DataTestCase(unittest.TestCase):
     def setUp(self):
         self.session = Session()
         for table in reversed(Base.metadata.sorted_tables):
-            self.session.execute(table.delete())
+            if not table.name.startswith('batch.'):
+                self.session.execute(table.delete())
         self.session.commit()
 
     def tearDown(self):