[TD-4376] adding test case

tests/pytest/fulltest.sh

@@ -332,5 +332,5 @@ python3 ./test.py -f tag_lite/alter_tag.py
 
 python3 test.py -f tools/taosdemoAllTest/taosdemoTestInsertWithJson.py 
 python3 test.py -f tools/taosdemoAllTest/taosdemoTestQueryWithJson.py
-
+python3 ./test.py -f tag_lite/drop_auto_create.py
 #======================p4-end===============

tests/pytest/tag_lite/drop_auto_create.py

@@ -0,0 +1,47 @@
+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+from util.log import *
+from util.cases import *
+from util.sql import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+
+        tdSql.execute('create table m1(ts timestamp, k int) tags(a binary(12), b int, c double);')
+        tdSql.execute('insert into tm0 using m1(b,c) tags(1, 99) values(now, 1);')
+        tdSql.execute('insert into tm1 using m1(b,c) tags(2, 100) values(now, 2);')
+        tdLog.info("2 rows inserted")
+        tdSql.query('select * from m1;')
+        tdSql.checkRows(2)
+        tdSql.execute('select *,tbname from m1;')
+        tdSql.execute("drop table tm0; ")
+        tdSql.query('select * from m1')
+        tdSql.checkRows(1)
+
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())