From 3134b692a6f290e6aba822cc546b42684099c3d6 Mon Sep 17 00:00:00 2001
From: nanoric <nanoric@qq.com>
Date: Thu, 11 Apr 2019 05:28:05 -0400
Subject: [PATCH] [Add] added comment

---
 vnpy/trader/setting.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vnpy/trader/setting.py b/vnpy/trader/setting.py
index dc82fad7..b27dbf96 100644
--- a/vnpy/trader/setting.py
+++ b/vnpy/trader/setting.py
@@ -25,7 +25,7 @@ SETTINGS = {
     "rqdata.username": "",
     "rqdata.password": "",
     "database": {
-        "driver": "sqlite",
+        "driver": "sqlite",  # sqlite, mysql, postgresql
         "database": "{VNPY_TEMP}/database.db",  # for sqlite, use this as filepath
         "host": "localhost",
         "port": 3306,