diff --git a/tests/system-test/7-tmq/db.py b/tests/system-test/7-tmq/db.py
index 0115686798..e2c6cc2e77 100644
--- a/tests/system-test/7-tmq/db.py
+++ b/tests/system-test/7-tmq/db.py
@@ -429,12 +429,6 @@ class TDTestCase:
 
         tdLog.printNoPrefix("======== test case 2 end ...... ")
 
-    def tmqCase3(self, cfgPath, buildPath):
-        tdLog.printNoPrefix("======== test case 3: ")      
-
-        tdLog.printNoPrefix("======== test case 3 end ...... ")
-
-
     def run(self):
         tdSql.prepare()
 
@@ -446,11 +440,8 @@ class TDTestCase:
         cfgPath = buildPath + "/../sim/psim/cfg"
         tdLog.info("cfgPath: %s" % cfgPath)
 
-        # self.tmqCase1(cfgPath, buildPath)
+        self.tmqCase1(cfgPath, buildPath)
         self.tmqCase2(cfgPath, buildPath) 
-        # self.tmqCase3(cfgPath, buildPath)
-        # self.tmqCase4(cfgPath, buildPath)
-        # self.tmqCase5(cfgPath, buildPath)
 
     def stop(self):
         tdSql.close()