[TD-1469]<test> add test case for alter table and insert

tests/pytest/fulltest.sh

@@ -17,6 +17,7 @@ python3 ./test.py -f insert/nchar-unicode.py
 python3 ./test.py -f insert/multi.py
 python3 ./test.py -f insert/randomNullCommit.py
 python3 insert/retentionpolicy.py
+python3 ./test.py -f insert/alterTableAndInsert.py
 
 python3 ./test.py -f table/column_name.py
 python3 ./test.py -f table/column_num.py

tests/pytest/insert/alterTableAndInsert.py

@@ -0,0 +1,40 @@
+###################################################################
+#           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 cars(ts timestamp, speed int) tags(id int)")
+        tdSql.execute("create table car0 using cars tags(0)")
+        tdSql.execute("insert into car0 values(now, 1)")
+        tdSql.execute("alter table cars add column c2 int")
+        tdSql.execute("insert into car0(ts, 'speed') values(now, 2)")
+        tdSql.checkAffectedRows(1)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())