diff --git a/clear_up.py.template b/clear_up.py.template
index 66d8b89..f3391f8 100644
--- a/clear_up.py.template
+++ b/clear_up.py.template
@@ -19,8 +19,11 @@ serverid = tuple((str(i) for i in df['serverid'].to_list()))
 sql = f"""select `#account_id`, `#event_time`, `#event_name`,`#os`,`svrindex`, count() as n
 from {db}.event
 where
+`#event_time`>addDays(now('UTC'),-3) and (
     lower(`#os`) = 'windows'
    or svrindex not in {serverid}
+   or svrindex is null )
+   
 group by `#account_id`, `#event_time`, `#event_name`,`#os`,`svrindex`
 having n = 1 limit 2000"""