diff --git a/sql/upgrade/1.3.3_schema/postgresql/dolphinscheduler_ddl.sql b/sql/upgrade/1.3.3_schema/postgresql/dolphinscheduler_ddl.sql
index 3351cac88c..477cb3bf60 100644
--- a/sql/upgrade/1.3.3_schema/postgresql/dolphinscheduler_ddl.sql
+++ b/sql/upgrade/1.3.3_schema/postgresql/dolphinscheduler_ddl.sql
@@ -91,7 +91,7 @@ DROP FUNCTION IF EXISTS uc_dolphin_T_t_ds_task_instance_A_var_pool();
 delimiter d//
 CREATE OR REPLACE FUNCTION ct_dolphin_T_t_ds_process_definition_version() RETURNS void AS $$
 BEGIN
-CREATE TABLE t_ds_process_definition_version (
+CREATE TABLE IF NOT EXISTS t_ds_process_definition_version (
                                                  id int NOT NULL  ,
                                                  process_definition_id int NOT NULL  ,
                                                  version int DEFAULT NULL ,
@@ -140,5 +140,3 @@ DROP FUNCTION IF EXISTS uc_dolphin_T_t_ds_resources_un();
 
 
 
-
-