diff --git a/tests/pytest/stream/stream3.py b/tests/pytest/stream/stream3.py
new file mode 100644
index 0000000000000000000000000000000000000000..9a5c6c9aeca08bff1c94861255919255eef89100
--- /dev/null
+++ b/tests/pytest/stream/stream3.py
@@ -0,0 +1,108 @@
+###################################################################
+#           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
+import time
+import taos
+from util.log import tdLog
+from util.cases import tdCases
+from util.sql import tdSql
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)                
+
+    def run(self):        
+        ts = 1500000000000
+        tbNum = 10
+        rowNum = 20
+
+        tdSql.prepare()
+
+        tdLog.info("===== step1 =====")        
+        tdSql.execute(
+            "create table stb0(ts timestamp, col1 binary(20), col2 nchar(20)) tags(tgcol int)")
+        for i in range(tbNum):
+            tdSql.execute("create table tb%d using stb0 tags(%d)" % (i, i))
+            for j in range(rowNum):
+                tdSql.execute(
+                    "insert into tb%d values (%d, 'binary%d', 'nchar%d')" %
+                    (i, ts + 60000 * j, j, j))
+        tdSql.execute("insert into tb0 values(%d, null, null)" % (ts + 10000000))
+        time.sleep(0.1)
+
+        tdLog.info("===== step2 =====")
+        tdSql.query(
+            "select count(*), count(col1), count(col2) from stb0 interval(1d)")
+        tdSql.checkData(0, 1, rowNum * tbNum + 1)
+        tdSql.checkData(0, 2, rowNum * tbNum)
+        tdSql.checkData(0, 3, rowNum * tbNum)
+
+        tdSql.query("show tables")
+        tdSql.checkRows(tbNum)
+        tdSql.execute(
+            "create table s0 as select count(*), count(col1), count(col2) from stb0 interval(1d)")
+        tdSql.query("show tables")
+        tdSql.checkRows(tbNum + 1)
+
+        tdLog.info("===== step3 =====")
+        tdSql.waitedQuery("select * from s0", 1, 120)
+        try:
+            tdSql.checkData(0, 1, rowNum * tbNum + 1)
+            tdSql.checkData(0, 2, rowNum * tbNum)
+            tdSql.checkData(0, 3, rowNum * tbNum)
+        except Exception as e:
+            tdLog.info(repr(e))
+
+        tdLog.info("===== step4 =====")
+        tdSql.execute("drop table s0")
+        tdSql.query("show tables")
+        tdSql.checkRows(tbNum)
+
+        tdLog.info("===== step5 =====")
+        tdSql.error("select * from s0")
+
+        tdLog.info("===== step6 =====")
+        time.sleep(0.1)
+        tdSql.execute(
+            "create table s0 as select count(*), count(col1), count(col2) from tb0 interval(1d)")
+        tdSql.query("show tables")
+        tdSql.checkRows(tbNum + 1)
+
+        tdLog.info("===== step7 =====")
+        tdSql.waitedQuery("select * from s0", 1, 120)
+        try:
+            tdSql.checkData(0, 1, rowNum + 1)
+            tdSql.checkData(0, 2, rowNum)
+            tdSql.checkData(0, 3, rowNum)
+        except Exception as e:
+            tdLog.info(repr(e))
+
+        tdLog.info("===== step8 =====")
+        tdSql.query(
+            "select count(*), count(col1), count(col2) from stb0 interval(1d)")
+        tdSql.checkData(0, 1, rowNum * tbNum + 1)
+        tdSql.checkData(0, 2, rowNum * tbNum)
+        tdSql.checkData(0, 3, rowNum * tbNum)
+        tdSql.query("show tables")
+        tdSql.checkRows(tbNum + 1)    
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())