From 45a62d2a12b30aefebdfc012af3c3098776a22f6 Mon Sep 17 00:00:00 2001
From: Xin Qiu <qiuxin2012@users.noreply.github.com>
Date: Fri, 10 Nov 2017 13:28:07 +0800
Subject: [PATCH] time counting for paralleltable's forward/backward (#1861)