diff --git a/script/sql/update/postgres/update_5.5.0-5.5.1.sql b/script/sql/update/postgres/update_5.5.0-5.5.1.sql
index 8fa28c007..f1449f0f6 100644
--- a/script/sql/update/postgres/update_5.5.0-5.5.1.sql
+++ b/script/sql/update/postgres/update_5.5.0-5.5.1.sql
@@ -1,25 +1,25 @@
-ALTER TABLE flow_definition ADD create_by VARCHAR2(64) DEFAULT '' NOT NULL;
-ALTER TABLE flow_definition ADD update_by VARCHAR2(64) DEFAULT '' NOT NULL;
+ALTER TABLE flow_definition ADD create_by VARCHAR(64) DEFAULT '' NOT NULL;
+ALTER TABLE flow_definition ADD update_by VARCHAR(64) DEFAULT '' NOT NULL;
 COMMENT ON COLUMN flow_definition.create_by IS '创建人';
 COMMENT ON COLUMN flow_definition.update_by IS '更新人';
 
-ALTER TABLE flow_node ADD create_by VARCHAR2(64) DEFAULT '' NOT NULL;
-ALTER TABLE flow_node ADD update_by VARCHAR2(64) DEFAULT '' NOT NULL;
+ALTER TABLE flow_node ADD create_by VARCHAR(64) DEFAULT '' NOT NULL;
+ALTER TABLE flow_node ADD update_by VARCHAR(64) DEFAULT '' NOT NULL;
 COMMENT ON COLUMN flow_node.create_by IS '创建人';
 COMMENT ON COLUMN flow_node.update_by IS '更新人';
 
-ALTER TABLE flow_skip ADD create_by VARCHAR2(64) DEFAULT '' NOT NULL;
-ALTER TABLE flow_skip ADD update_by VARCHAR2(64) DEFAULT '' NOT NULL;
+ALTER TABLE flow_skip ADD create_by VARCHAR(64) DEFAULT '' NOT NULL;
+ALTER TABLE flow_skip ADD update_by VARCHAR(64) DEFAULT '' NOT NULL;
 COMMENT ON COLUMN flow_skip.create_by IS '创建人';
 COMMENT ON COLUMN flow_skip.update_by IS '更新人';
 
-ALTER TABLE flow_instance ADD update_by VARCHAR2(64) DEFAULT '' NOT NULL;
+ALTER TABLE flow_instance ADD update_by VARCHAR(64) DEFAULT '' NOT NULL;
 COMMENT ON COLUMN flow_instance.update_by IS '更新人';
 
-ALTER TABLE flow_task ADD create_by VARCHAR2(64) DEFAULT '' NOT NULL;
-ALTER TABLE flow_task ADD update_by VARCHAR2(64) DEFAULT '' NOT NULL;
+ALTER TABLE flow_task ADD create_by VARCHAR(64) DEFAULT '' NOT NULL;
+ALTER TABLE flow_task ADD update_by VARCHAR(64) DEFAULT '' NOT NULL;
 COMMENT ON COLUMN flow_task.create_by IS '创建人';
 COMMENT ON COLUMN flow_task.update_by IS '更新人';
 
-ALTER TABLE flow_user ADD update_by VARCHAR2(64) DEFAULT '' NOT NULL;
+ALTER TABLE flow_user ADD update_by VARCHAR(64) DEFAULT '' NOT NULL;
 COMMENT ON COLUMN flow_user.update_by IS '更新人';