bug修复

unify_api/modules/home_page/procedures/count_info_pds.py

@@ -206,8 +206,8 @@ async def real_time_load(cid, end_dt=None):
           f"AND ts>='{str(s_dt)}' AND ts <='{str(end_dt)}' group by tbname;"
     url = f"{SETTING.stb_url}db_electric?tz=Asia/Shanghai"
     is_succ, results = await get_td_engine_data(url, sql)
-    if not is_succ:
-        return ""
+    if not is_succ or not results:
+        return 0
     
     head = parse_td_columns(results)
     datas = []