diff --git a/regression-test/suites/insert_overwrite_p0/insert_overwrite_table_list.groovy b/regression-test/suites/insert_overwrite_p0/insert_overwrite_table_list.groovy
index 3d55d8294b..fb684f33b2 100644
--- a/regression-test/suites/insert_overwrite_p0/insert_overwrite_table_list.groovy
+++ b/regression-test/suites/insert_overwrite_p0/insert_overwrite_table_list.groovy
@@ -16,7 +16,7 @@
 // under the License.
 
 suite("test_iot_list") {
-    def dbName = "test_iot_db";
+    def dbName = "test_iot_db_list";
     sql """drop database if exists ${dbName}"""
     sql """create database ${dbName}"""
     sql """use ${dbName}"""
@@ -156,7 +156,7 @@ suite("test_iot_list") {
 
         sql """ DROP TABLE IF EXISTS test_iot1 """
 
-        sql """ DROP DATABASE IF EXISTS test_iot_db """
+        sql """ DROP DATABASE IF EXISTS ${dbName} """
     }
 
 }
diff --git a/regression-test/suites/insert_overwrite_p0/insert_overwrite_table_range.groovy b/regression-test/suites/insert_overwrite_p0/insert_overwrite_table_range.groovy
index e00ce61684..591d5839c0 100644
--- a/regression-test/suites/insert_overwrite_p0/insert_overwrite_table_range.groovy
+++ b/regression-test/suites/insert_overwrite_p0/insert_overwrite_table_range.groovy
@@ -16,7 +16,7 @@
 // under the License.
 
 suite("test_iot_range") {
-    def dbName = "test_iot_db";
+    def dbName = "test_iot_db_range";
     sql """drop database if exists ${dbName}"""
     sql """create database ${dbName}"""
     sql """use ${dbName}"""
@@ -156,7 +156,7 @@ suite("test_iot_range") {
     } finally {
         sql """ DROP TABLE IF EXISTS test_iot """
         sql """ DROP TABLE IF EXISTS test_iot1 """
-        sql """ DROP DATABASE IF EXISTS test_iot_db """
+        sql """ DROP DATABASE IF EXISTS ${dbName} """
     }
 
 }