diff --git a/session/engine/dbengine.py b/session/engine/dbengine.py
index 3431ba4..ad27f00 100644
--- a/session/engine/dbengine.py
+++ b/session/engine/dbengine.py
@@ -54,7 +54,7 @@ class DatabaseEngine(object):
         'postgresql': 'postgresql+psycopg2://{0}:{1}@{2}:{3}/{4}',
         'oracle': 'oracle+cx_oracle://{0}:{1}@{2}:{3}/?service_name={4}'
     }
-
+    # 连接池容器名称,具体看ObjContainer对象
     attr = 'engines'
 
     def __init__(self, db_name, conf_path=DEFAULT_CONF_PATH):
diff --git a/session/session.py b/session/session.py
index 9cf2c3e..ef15731 100644
--- a/session/session.py
+++ b/session/session.py
@@ -91,6 +91,12 @@ class Sqlsession(object):
     def insert(self, sql):
         return self.executor.execute_update(sql)
 
+    def insert_batch(self, sql):
+        """
+        todo implement
+        """
+        pass
+
     def update(self, sql):
         return self.executor.execute_update(sql)