diff --git a/src/common/database/compatibility/__init__.py b/src/common/database/compatibility/__init__.py
index 248550f25..14e1902b4 100644
--- a/src/common/database/compatibility/__init__.py
+++ b/src/common/database/compatibility/__init__.py
@@ -3,6 +3,7 @@
 提供向后兼容的数据库API
 """
 
+from ..core import get_db_session, get_engine
 from .adapter import (
     MODEL_MAPPING,
     build_filters,
@@ -13,6 +14,10 @@ from .adapter import (
 )
 
 __all__ = [
+    # 从 core 重新导出的函数
+    "get_db_session",
+    "get_engine",
+    # 兼容层适配器
     "MODEL_MAPPING",
     "build_filters",
     "db_query",