diff --git a/tests/system-test/2-query/abs.py b/tests/system-test/2-query/abs.py
index ea653962c2..3ce29c3049 100644
--- a/tests/system-test/2-query/abs.py
+++ b/tests/system-test/2-query/abs.py
@@ -10,7 +10,7 @@ from util.cases import *
 
 
 class TDTestCase:
-
+    updatecfgDict = {'debugFlag': 143}
     def init(self, conn, logSql):
         tdLog.debug(f"start to excute {__file__}")
         tdSql.init(conn.cursor())
diff --git a/tests/system-test/2-query/ceil.py b/tests/system-test/2-query/ceil.py
index 77833e085c..7874a3a626 100644
--- a/tests/system-test/2-query/ceil.py
+++ b/tests/system-test/2-query/ceil.py
@@ -9,6 +9,7 @@ from util.sql import *
 from util.cases import *
 
 class TDTestCase:
+    updatecfgDict = {'debugFlag': 143}
 
     def init(self, conn, logSql):
         tdLog.debug(f"start to excute {__file__}")
diff --git a/tests/system-test/2-query/floor.py b/tests/system-test/2-query/floor.py
index 51b33afedf..a7518f8f14 100644
--- a/tests/system-test/2-query/floor.py
+++ b/tests/system-test/2-query/floor.py
@@ -9,6 +9,7 @@ from util.sql import *
 from util.cases import *
 
 class TDTestCase:
+    updatecfgDict = {'debugFlag': 143}
 
     def init(self, conn, logSql):
         tdLog.debug(f"start to excute {__file__}")
diff --git a/tests/system-test/2-query/round.py b/tests/system-test/2-query/round.py
index 43895b8768..6aab4895a9 100644
--- a/tests/system-test/2-query/round.py
+++ b/tests/system-test/2-query/round.py
@@ -8,6 +8,7 @@ from util.sql import *
 from util.cases import *
 
 class TDTestCase:
+    updatecfgDict = {'debugFlag': 143}
 
     def init(self, conn, logSql):
         tdLog.debug(f"start to excute {__file__}")