diff --git a/tests/script/general/parser/udf_dll_stable.sim b/tests/script/general/parser/udf_dll_stable.sim
index dbde20516e79cc67e0ea42beafce95779a45725a..cd1dbc8b5374779d13decde5bf8a0fce48d90f0a 100644
--- a/tests/script/general/parser/udf_dll_stable.sim
+++ b/tests/script/general/parser/udf_dll_stable.sim
@@ -1216,8 +1216,11 @@ sql_error select add_one(f1),sub_one(f1) from tb1;
 
 sql create table taaa (ts timestamp, f1 bigint);
 sql insert into taaa values (now, 1);
+sleep 100
 sql insert into taaa values (now, 10);
+sleep 100
 sql insert into taaa values (now, 1000);
+sleep 100
 sql insert into taaa values (now, 100);
 
 sql select add_one_64232(f1) from taaa;