diff --git a/tests/pytest/fulltest.sh b/tests/pytest/fulltest.sh
index b6f367c5ef5989add11015d69a5f0cb3afa9e730..3e6901a7156f2e660f91f64a4e59552e6daaf778 100755
--- a/tests/pytest/fulltest.sh
+++ b/tests/pytest/fulltest.sh
@@ -189,9 +189,12 @@ python3 test.py -f tools/taosdemoAllTest/NanoTestCase/taosdemoTestSupportNanosub
 python3 test.py -f tools/taosdemoAllTest/NanoTestCase/taosdemoTestInsertTime_step.py
 python3 test.py -f tools/taosdumpTestNanoSupport.py
 
-#
+# tsdb
+python3 ./test.py -f tsdb/insert.py
 # python3 ./test.py -f tsdb/tsdbComp.py
 
+
+
 # update
 python3 ./test.py -f update/allow_update.py
 python3 ./test.py -f update/allow_update-0.py
diff --git a/tests/pytest/tsdb/delete.py b/tests/pytest/tsdb/delete.py
new file mode 100644
index 0000000000000000000000000000000000000000..2a7ce4380893885fe82743723359fa6b82aaafb9
--- /dev/null
+++ b/tests/pytest/tsdb/delete.py
@@ -0,0 +1,127 @@
+###################################################################
+#           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 numpy.lib.function_base import insert
+import taos
+from util.log import *
+from util.cases import *
+from util.sql import *
+import numpy as np
+
+# constant define
+WAITS = 5 # wait seconds
+
+class TDTestCase:
+    #
+    # --------------- main frame -------------------
+    #
+    
+    def caseDescription(self):
+        '''
+        limit and offset keyword function test cases;
+        case1: limit offset base function test
+        case2: limit offset advance test
+        '''
+        return 
+
+    # init
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+        tdSql.prepare()
+        self.create_tables()
+        self.ts = 1500000000000
+
+
+    # run case  
+    def run(self):
+        # insert data
+        for i in range(100)
+          tbname = "t%d"%i
+          self.insert_data("t1", self.ts, (i+1)*10000, 20000);
+
+        tdLog.debug(" INSERT data 100 tables ....... [OK]")  
+
+        # test base case
+        self.test_case1()
+        tdLog.debug(" DELETE test_case1 ............ [OK]")
+        # test advance case
+        self.test_case2()
+        tdLog.debug(" DELETE test_case2 ............ [OK]")
+
+
+    # stop 
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+    #
+    # --------------- case  -------------------
+    #
+
+    # create table
+    def create_tables(self):
+        # super table
+        tdSql.execute("create table st(ts timestamp, i1 int) tags(area int)");
+        # child table
+        for i in rang(100)
+          sql = "create table t%d using st tags(%d)"%(i, i)
+          tdSql.execute(sql)
+        
+        return 
+
+    # insert data1
+    def insert_data(self, tbname, ts_start, count, batch_num):
+        pre_insert = "insert into %s values"%tbname
+        sql = pre_insert
+        tdLog.debug("doing insert table %s rows=%d ..."%(tbname, count))
+        for i in range(count):
+            sql += " (%d,%d)"%(ts_start + i*1000, i)
+            if i >0 and i%batch_num == 0:
+                tdSql.execute(sql)
+                sql = pre_insert
+        # end sql        
+        if sql != pre_insert:
+            tdSql.execute(sql)
+
+        tdLog.debug("INSERT TABLE DATA ............ [OK]")
+        return
+
+    # test case1 base 
+    def test_case1(self):
+        # 
+        # delete base function
+        #
+
+        # single table
+        sql = "select count(*) from t0"
+        tdSql.waitedQuery(sql, 1, WAITS)
+        tdSql.checkData(0, 0, 10000)
+        return 
+
+    # test advance 
+    def test_case2(self):
+        # 
+        # delete other special case
+        #
+        
+        # offset
+        sql = "select * from t1 limit 10 offset 72000"
+
+#
+# add case with filename
+#
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file