fix:[TD-33504]add test case

tests/parallel_test/cases.task

@@ -329,6 +329,7 @@
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/dataFromTsdbNWal-multiCtb.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmq_taosx.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmq_ts5466.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmq_td33504.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmq_ts-5473.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/td-32187.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/td-33225.py

tests/system-test/7-tmq/tmq_td33504.py

@@ -0,0 +1,84 @@
+
+import taos
+import sys
+import time
+import socket
+import os
+import threading
+
+from util.log import *
+from util.sql import *
+from util.cases import *
+from util.dnodes import *
+from util.common import *
+from taos.tmq import *
+from taos import *
+
+sys.path.append("./7-tmq")
+from tmqCommon import *
+
+class TDTestCase:
+    def init(self, conn, logSql, replicaVar=1):
+        self.replicaVar = int(replicaVar)
+        tdLog.debug(f"start to excute {__file__}")
+        tdSql.init(conn.cursor())
+        #tdSql.init(conn.cursor(), logSql)  # output sql.txt file
+
+    def test(self):
+        tdSql.execute(f'create database if not exists db')
+        tdSql.execute(f'use db')
+        tdSql.execute(f'CREATE STABLE meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (location BINARY(64), groupId INT)')
+        tdSql.execute("INSERT INTO d1001 USING meters TAGS('California.SanFrancisco', 2) VALUES('2018-10-05 14:38:05.000',10.30000,219,0.31000)")
+        tdSql.execute("INSERT INTO d1002 USING meters TAGS('California.SanFrancisco', 2) VALUES('2018-10-05 14:38:05.000',10.30000,219,0.31000)")
+        tdSql.execute("INSERT INTO d1003 USING meters TAGS('California.SanFrancisco', 2) VALUES('2018-10-05 14:38:05.000',10.30000,219,0.31000)")
+        tdSql.execute("INSERT INTO d1004 USING meters TAGS('California.SanFrancisco', 2) VALUES('2018-10-05 14:38:05.000',10.30000,219,0.31000)")
+
+        tdSql.execute(f'create topic t0 as select * from meters')
+        tdSql.execute(f'create topic t1 as select * from meters')
+
+        consumer_dict = {
+            "group.id": "g1",
+            "td.connect.user": "root",
+            "td.connect.pass": "taosdata",
+            "auto.offset.reset": "earliest",
+        }
+        consumer = Consumer(consumer_dict)
+
+        try:
+            consumer.subscribe(["t0"])
+        except TmqError:
+            tdLog.exit(f"subscribe error")
+
+        try:
+            res = consumer.poll(1)
+            print(res)
+
+            consumer.unsubscribe()
+
+            try:
+                consumer.subscribe(["t1"])
+            except TmqError:
+                tdLog.exit(f"subscribe error")
+
+
+            res = consumer.poll(1)
+            print(res)
+            if res == None and taos_errno(None) != 0:
+                tdLog.exit(f"poll error %d" % taos_errno(None))
+
+        except TmqError:
+            tdLog.exit(f"poll error")
+        finally:
+            consumer.close()
+
+
+    def run(self):
+        self.test()
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success(f"{__file__} successfully executed")
+
+tdCases.addLinux(__file__, TDTestCase())
+tdCases.addWindows(__file__, TDTestCase())