diff --git a/tests/pytest/insert/insert_before_use_db.py b/tests/pytest/insert/insert_before_use_db.py
index 94ee83b6914df5b05fa2c8777441e6976cf37e4f..8cc02b3d4bde3fc6465c6011ade24fd8d15818be 100644
--- a/tests/pytest/insert/insert_before_use_db.py
+++ b/tests/pytest/insert/insert_before_use_db.py
@@ -24,6 +24,10 @@ class TDTestCase:
 
     def run(self):
         tdSql.error('insert into tb values (now + 10m, 10)')
+        tdSql.prepare()
+        tdSql.error('insert into tb values (now + 10m, 10)')
+        tdSql.execute('drop database db')
+        tdSql.error('insert into tb values (now + 10m, 10)')
         
 
     def stop(self):