diff --git a/tests/system-test/2-query/concat.py b/tests/system-test/2-query/concat.py
index 2185e381f3..044c59c8e4 100644
--- a/tests/system-test/2-query/concat.py
+++ b/tests/system-test/2-query/concat.py
@@ -271,13 +271,13 @@ class TDTestCase:
         tdLog.printNoPrefix("==========step3:all check")
         self.all_test()
 
-        # tdDnodes.stop(1)
-        # tdDnodes.start(1)
+        tdDnodes.stop(1)
+        tdDnodes.start(1)
 
-        # tdSql.execute("use db")
+        tdSql.execute("use db")
 
-        # tdLog.printNoPrefix("==========step4:after wal, all check again ")
-        # self.all_test()
+        tdLog.printNoPrefix("==========step4:after wal, all check again ")
+        self.all_test()
 
     def stop(self):
         tdSql.close()
diff --git a/tests/system-test/2-query/concat_ws.py b/tests/system-test/2-query/concat_ws.py
index 2aa3e33b40..7a7feb6245 100644
--- a/tests/system-test/2-query/concat_ws.py
+++ b/tests/system-test/2-query/concat_ws.py
@@ -271,13 +271,13 @@ class TDTestCase:
         tdLog.printNoPrefix("==========step3:all check")
         self.all_test()
 
-        # tdDnodes.stop(1)
-        # tdDnodes.start(1)
+        tdDnodes.stop(1)
+        tdDnodes.start(1)
 
-        # tdSql.execute("use db")
+        tdSql.execute("use db")
 
-        # tdLog.printNoPrefix("==========step4:after wal, all check again ")
-        # self.all_test()
+        tdLog.printNoPrefix("==========step4:after wal, all check again ")
+        self.all_test()
 
     def stop(self):
         tdSql.close()
diff --git a/tests/system-test/fulltest.sh b/tests/system-test/fulltest.sh
index 830f3a0cd4..c05eb8fc29 100755
--- a/tests/system-test/fulltest.sh
+++ b/tests/system-test/fulltest.sh
@@ -17,6 +17,8 @@ python3 ./test.py -f 2-query/length.py
 python3 ./test.py -f 2-query/char_length.py
 python3 ./test.py -f 2-query/upper.py
 python3 ./test.py -f 2-query/lower.py
+python3 ./test.py -f 2-query/concat.py
+python3 ./test.py -f 2-query/concat_ws.py
 
 python3 ./test.py -f 2-query/timezone.py
 python3 ./test.py -f 2-query/Now.py