update mat view

repository/statistics/click_statistics.go

@@ -40,7 +40,7 @@ SELECT
 FROM (SELECT
             event_time, ctxsession, ctxquizid, ctxquestionid, ctxidint, message, keyos,
             ctxuserip, ctxuserport, keydomain, keypath, ctxquiz, ctxreferrer,
-            row_number() OVER (PARTITION BY ctxsession ORDER BY create_time DESC) as row_num
+            row_number() OVER (PARTITION BY ctxsession ORDER BY event_time DESC) as row_num
         FROM statistics
         WHERE message IN ('InfoQuizOpen', 'InfoAnswer', 'InfoResult') AND event_level = 'info') AS sorted
 WHERE row_num = 1;