diff --git a/minode/sql.py b/minode/sql.py
index 00bdd0d..d69916a 100644
--- a/minode/sql.py
+++ b/minode/sql.py
@@ -41,14 +41,16 @@ class Inventory():
         cur.execute("INSERT INTO status VALUES ('lastvacuumtime', ?)", (now,))
         self._db.commit()
 
+    @staticmethod
+    def __object(cursor, row):
+        vector, expires, obj_type, version, stream, tag, data, offset = row
+        return structure.Object(
+            expires, obj_type, version, stream, data, offset,
+            tag=tag, vector=vector)
+
     def __objects(self, cur):
-        return (
-            structure.Object(
-                expires, obj_type, version, stream, data, offset,
-                tag=tag, vector=vector)
-            for (vector, expires, obj_type, version, stream, tag, data, offset)
-            in cur.fetchall()
-        )
+        cur.row_factory = self.__object
+        return cur
 
     def cleanup(self):
         with shared.objects_lock: