diff --git a/tests/system-test/7-tmq/TD-17699.py b/tests/system-test/7-tmq/TD-17699.py
new file mode 100644
index 0000000000000000000000000000000000000000..87b11f6f83846bd5b90d73e610e59c75acaf5fc9
--- /dev/null
+++ b/tests/system-test/7-tmq/TD-17699.py
@@ -0,0 +1,129 @@
+import sys
+import time
+import socket
+import os
+import threading
+
+import taos
+from util.log import *
+from util.sql import *
+from util.cases import *
+from util.dnodes import *
+from util.common import *
+sys.path.append("./7-tmq")
+from tmqCommon import *
+
+class TDTestCase:
+    paraDict = {'dbName':     'db1',
+                'dropFlag':   1,
+                'event':      '',
+                'vgroups':    2,
+                'stbName':    'stb0',
+                'colPrefix':  'c',
+                'tagPrefix':  't',
+                'colSchema':   [{'type': 'INT', 'count':2}, {'type': 'binary', 'len':16, 'count':1}, {'type': 'timestamp','count':1}],
+                'tagSchema':   [{'type': 'INT', 'count':1}, {'type': 'binary', 'len':20, 'count':1}],
+                'ctbPrefix':  'ctb',
+                'ctbStartIdx': 0,
+                'ctbNum':     100,
+                'rowsPerTbl': 1000,
+                'batchNum':   1000,
+                'startTs':    1640966400000,  # 2022-01-01 00:00:00.000
+                'pollDelay':  20,
+                'showMsg':    1,
+                'showRow':    1}
+
+    cdbName = 'cdb'
+    # some parameter to consumer processor
+    consumerId = 0
+    expectrowcnt = 0
+    topicList = ''
+    ifcheckdata = 0
+    ifManualCommit = 1
+    groupId = 'group.id:cgrp1'
+    autoCommit = 'enable.auto.commit:false'
+    autoCommitInterval = 'auto.commit.interval.ms:1000'
+    autoOffset = 'auto.offset.reset:earliest'
+
+    pollDelay = 20
+    showMsg   = 1
+    showRow   = 1  
+
+    hostname = socket.gethostname()
+
+    def init(self, conn, logSql):
+        tdLog.debug(f"start to excute {__file__}")
+        logSql = False
+        tdSql.init(conn.cursor(), logSql)
+
+    def tmqCase1(self):
+        tdLog.printNoPrefix("======== test case 1: ")
+        tdLog.info("step 1: create database, stb, ctb and insert data")
+        
+        tmqCom.initConsumerTable(self.cdbName)
+
+        tdCom.create_database(tdSql,self.paraDict["dbName"],self.paraDict["dropFlag"])
+
+        self.paraDict["stbName"] = 'stb1'
+        tdCom.create_stable(tdSql,dbname=self.paraDict["dbName"],stbname=self.paraDict["stbName"],column_elm_list=self.paraDict["colSchema"],tag_elm_list=self.paraDict["tagSchema"],count=1, default_stbname_prefix=self.paraDict["stbName"])
+        tdCom.create_ctable(tdSql,dbname=self.paraDict["dbName"],stbname=self.paraDict["stbName"],tag_elm_list=self.paraDict['tagSchema'],count=self.paraDict["ctbNum"],default_ctbname_prefix=self.paraDict["ctbPrefix"])
+        tmqCom.insert_data_2(tdSql,self.paraDict["dbName"],self.paraDict["ctbPrefix"],self.paraDict["ctbNum"],self.paraDict["rowsPerTbl"],self.paraDict["batchNum"],self.paraDict["startTs"],self.paraDict["ctbStartIdx"])
+        # pThread1 = tmqCom.asyncInsertData(paraDict=self.paraDict)
+        
+        self.paraDict["stbName"] = 'stb2'
+        self.paraDict["ctbPrefix"] = 'newctb'
+        self.paraDict["batchNum"] = 1000
+        tdCom.create_stable(tdSql,dbname=self.paraDict["dbName"],stbname=self.paraDict["stbName"],column_elm_list=self.paraDict["colSchema"],tag_elm_list=self.paraDict["tagSchema"],count=1, default_stbname_prefix=self.paraDict["stbName"])
+        tdCom.create_ctable(tdSql,dbname=self.paraDict["dbName"],stbname=self.paraDict["stbName"],tag_elm_list=self.paraDict['tagSchema'],count=self.paraDict["ctbNum"],default_ctbname_prefix=self.paraDict["ctbPrefix"])
+        # tmqCom.insert_data_2(tdSql,self.paraDict["dbName"],self.paraDict["ctbPrefix"],self.paraDict["ctbNum"],self.paraDict["rowsPerTbl"],self.paraDict["batchNum"],self.paraDict["startTs"],self.paraDict["ctbStartIdx"])
+        pThread2 = tmqCom.asyncInsertData(paraDict=self.paraDict)        
+
+        tdLog.info("create topics from db")
+        topicName1 = 'UpperCasetopic_%s'%(self.paraDict['dbName'])        
+        tdSql.execute("create topic %s as database %s" %(topicName1, self.paraDict['dbName']))
+        
+        topicList = topicName1 + ',' +topicName1
+        keyList = '%s,%s,%s,%s'%(self.groupId,self.autoCommit,self.autoCommitInterval,self.autoOffset)
+        self.expectrowcnt = self.paraDict["rowsPerTbl"] * self.paraDict["ctbNum"] * 2
+        tmqCom.insertConsumerInfo(self.consumerId, self.expectrowcnt,topicList,keyList,self.ifcheckdata,self.ifManualCommit)
+        
+        tdLog.info("start consume processor")  
+        tmqCom.startTmqSimProcess(self.pollDelay,self.paraDict["dbName"],self.showMsg, self.showRow,self.cdbName)
+        
+        tmqCom.getStartConsumeNotifyFromTmqsim()  
+        tdLog.info("drop one stable")
+        self.paraDict["stbName"] = 'stb1'    
+        tdSql.execute("drop table %s.%s" %(self.paraDict['dbName'], self.paraDict['stbName']))        
+        tmqCom.drop_ctable(tdSql, dbname=self.paraDict['dbName'], count=self.paraDict["ctbNum"], default_ctbname_prefix=self.paraDict["ctbPrefix"])
+
+        # pThread2.join()
+    
+        tdLog.info("wait result from consumer, then check it")
+        expectRows = 1
+        resultList = tmqCom.selectConsumeResult(expectRows)
+
+        totalConsumeRows = 0
+        for i in range(expectRows):
+            totalConsumeRows += resultList[i]
+        
+        if not (totalConsumeRows >= self.expectrowcnt/2 and totalConsumeRows <= self.expectrowcnt):
+            tdLog.info("act consume rows: %d, expect consume rows: between %d and %d"%(totalConsumeRows, self.expectrowcnt/2, self.expectrowcnt))
+            tdLog.exit("tmq consume rows error!")
+
+        time.sleep(10)
+        tdSql.query("drop topic %s"%topicName1)
+
+        tdLog.printNoPrefix("======== test case 1 end ...... ")
+
+    def run(self):
+        tdSql.prepare()
+        self.tmqCase1()
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success(f"{__file__} successfully executed")
+
+event = threading.Event()
+
+tdCases.addLinux(__file__, TDTestCase())
+tdCases.addWindows(__file__, TDTestCase())