diff --git a/tests/pytest/functions/queryTestCases.py b/tests/pytest/functions/queryTestCases.py
index b254908c42ec8f267fa947b5c759101b16b066a9..e5213d9f7253d1a82e84584c87b66291daf01f25 100644
--- a/tests/pytest/functions/queryTestCases.py
+++ b/tests/pytest/functions/queryTestCases.py
@@ -418,10 +418,14 @@ class TDTestCase:
         tdSql.execute("use db")
         tdSql.execute("create stable db.stb1 (ts timestamp, c1 int) tags(t1 int)")
 
+        nowtime = int(round(time.time() * 1000))
         for i in range(1000):
             tdSql.execute(f"create table db.t1{i} using db.stb1 tags({i})")
+            sql = f"insert into db.t1{i} values"
             for j in range(260):
-                tdSql.execute(f"insert into db.t1{i} values (now-100d, {i+j})")
+                sql += f"({nowtime-1000*i-j}, {i+j})"
+                # tdSql.execute(f"insert into db.t1{i} values (now-100d, {i+j})")
+            tdSql.execute(sql)
 
         # tdDnodes.stop(dnode_index)
         # tdDnodes.start(dnode_index)
@@ -465,7 +469,7 @@ class TDTestCase:
         # tdSql.execute("insert into db.t1 values ('2021-07-01 08:00:04.000', 1001.51, 1001.52, 1001.53, 1001.54)")
 
         # for i in range(1000000):
-        for i in range(1000000):
+        for i in range(10000):
             random1 = random.uniform(1000,1001)
             random2 = random.uniform(1000,1001)
             random3 = random.uniform(1000,1001)