Hi,
I will merge the following PRs if no more opinions are provided by 2019/10/18 14:00 (GMT+8), [IOTDB-199]Add a log tool https://github.com/apache/incubator-iotdb/pull/370 [IOTDB-165][TsFile] Delete a current version and add a number version and an exception. https://github.com/apache/incubator-iotdb/pull/409#pullrequestreview-303177831 [IOTDB-203]add "group by device" function for narrow table display https://github.com/apache/incubator-iotdb/pull/433#pullrequestreview-303186156 [IOTDB-244]fix bug when querying with duplicated columns https://github.com/apache/incubator-iotdb/pull/434 Please leave a message in this thread if you have new comments. Best, Tian Jiang
