diff --git a/tests/system-test/2-query/max.py b/tests/system-test/2-query/max.py
index 169b1c2c387c7158635483f8ce8868891e42e3c2..5cc9a2d9e888425763914c01baeababfeebc6166 100644
--- a/tests/system-test/2-query/max.py
+++ b/tests/system-test/2-query/max.py
@@ -38,18 +38,7 @@ class TDTestCase:
                 elif i>=9:
                     tdSql.checkData(0, 0, np.max(floatData))
 
-        tdSql.query(f"select max(now()) from {dbname}.stb_1")
-        tdSql.checkRows(1)
-
-        tdSql.query(f"select last(ts) from {dbname}.stb_1")
-        lastTs = tdSql.getData(0, 0)
-        tdSql.query(f"select max(ts) from {dbname}.stb_1")
-        tdSql.checkData(0, 0, lastTs)
-
-        tdSql.query(f"select last(ts) from {dbname}.stb")
-        lastTs = tdSql.getData(0, 0)
-        tdSql.query(f"select max(ts) from {dbname}.stb")
-        tdSql.checkData(0, 0, lastTs)
+        tdSql.error(f"select max(now()) from {dbname}.stb_1")
 
         tdSql.query(f"select max(col1) from {dbname}.stb_1 where col2<=5")
         tdSql.checkData(0,0,5)
@@ -78,13 +67,7 @@ class TDTestCase:
                 elif i>=9:
                     tdSql.checkData(0, 0, np.max(floatData))
 
-        tdSql.query(f"select max(now()) from {dbname}.ntb")
-        tdSql.checkRows(1)
-
-        tdSql.query(f"select last(ts) from {dbname}.ntb")
-        lastTs = tdSql.getData(0, 0)
-        tdSql.query(f"select max(ts) from {dbname}.ntb")
-        tdSql.checkData(0, 0, lastTs)
+        tdSql.error(f"select max(now()) from {dbname}.ntb")
 
         tdSql.query(f"select max(col1) from {dbname}.ntb where col2<=5")
         tdSql.checkData(0,0,5)
diff --git a/tests/system-test/2-query/min.py b/tests/system-test/2-query/min.py
index 3d46b7b2224f834360c17cdc311dbf1e0d5a4535..d97c4340f4022af6372134892dba25c371af1b51 100644
--- a/tests/system-test/2-query/min.py
+++ b/tests/system-test/2-query/min.py
@@ -37,6 +37,8 @@ class TDTestCase:
             floatData.append(i + 0.1)
 
         # max verifacation
+        tdSql.error(f"select min(now()) from {dbname}.stb_1")
+        tdSql.error(f"select min(ts) from {dbname}.stb_1")
         tdSql.error(f"select min(col7) from {dbname}.stb_1")
         tdSql.error(f"select min(col8) from {dbname}.stb_1")
         tdSql.error(f"select min(col9) from {dbname}.stb_1")
@@ -67,20 +69,9 @@ class TDTestCase:
         tdSql.query(f"select min(col1) from {dbname}.stb_1 where col2>=5")
         tdSql.checkData(0,0,5)
 
-        tdSql.query(f"select min(now()) from {dbname}.stb_1")
-        tdSql.checkRows(1)
-
-        tdSql.query(f"select first(ts) from {dbname}.stb_1")
-        firstTs = tdSql.getData(0, 0)
-        tdSql.query(f"select min(ts) from {dbname}.stb_1")
-        tdSql.checkData(0, 0, firstTs)
-
-        tdSql.query(f"select first(ts) from {dbname}.stb_1")
-        firstTs = tdSql.getData(0, 0)
-        tdSql.query(f"select min(ts) from {dbname}.stb_1")
-        tdSql.checkData(0, 0, firstTs)
-
 
+        tdSql.error(f"select min(now()) from {dbname}.stb_1")
+        tdSql.error(f"select min(ts) from {dbname}.stb_1")
         tdSql.error(f"select min(col7) from {dbname}.stb_1")
         tdSql.error(f"select min(col8) from {dbname}.stb_1")
         tdSql.error(f"select min(col9) from {dbname}.stb_1")
@@ -111,19 +102,8 @@ class TDTestCase:
         tdSql.query(f"select min(col1) from {dbname}.stb where col2>=5")
         tdSql.checkData(0,0,5)
 
-        tdSql.query(f"select min(now()) from {dbname}.stb_1")
-        tdSql.checkRows(1)
-
-        tdSql.query(f"select first(ts) from {dbname}.stb_1")
-        firstTs = tdSql.getData(0, 0)
-        tdSql.query(f"select min(ts) from {dbname}.stb_1")
-        tdSql.checkData(0, 0, firstTs)
-
-        tdSql.query(f"select first(ts) from {dbname}.stb_1")
-        firstTs = tdSql.getData(0, 0)
-        tdSql.query(f"select min(ts) from {dbname}.stb_1")
-        tdSql.checkData(0, 0, firstTs)
-
+        tdSql.error(f"select min(now()) from {dbname}.stb_1")
+        tdSql.error(f"select min(ts) from {dbname}.stb_1")
         tdSql.error(f"select min(col7) from {dbname}.ntb")
         tdSql.error(f"select min(col8) from {dbname}.ntb")
         tdSql.error(f"select min(col9) from {dbname}.ntb")
@@ -154,19 +134,6 @@ class TDTestCase:
         tdSql.query(f"select min(col1) from {dbname}.ntb where col2>=5")
         tdSql.checkData(0,0,5)
 
-        tdSql.query(f"select min(now()) from {dbname}.stb_1")
-        tdSql.checkRows(1)
-
-        tdSql.query(f"select first(ts) from {dbname}.stb_1")
-        firstTs = tdSql.getData(0, 0)
-        tdSql.query(f"select min(ts) from {dbname}.stb_1")
-        tdSql.checkData(0, 0, firstTs)
-
-        tdSql.query(f"select first(ts) from {dbname}.stb_1")
-        firstTs = tdSql.getData(0, 0)
-        tdSql.query(f"select min(ts) from {dbname}.stb_1")
-        tdSql.checkData(0, 0, firstTs)
-
 
     def stop(self):
         tdSql.close()