diff --git a/script/sql/postgresql/update.sql b/script/sql/postgresql/update.sql
index c7e5af9..854029d 100644
--- a/script/sql/postgresql/update.sql
+++ b/script/sql/postgresql/update.sql
@@ -53,3 +53,24 @@ insert into sys_menu values('1621', '配置添加', '118', '6', '#', '', '', '1'
 insert into sys_menu values('1622', '配置编辑', '118', '6', '#', '', '', '1', '0', 'F', '0', '0', 'system:ossConfig:edit',   '#', 1, now(), null, null, '');
 insert into sys_menu values('1623', '配置删除', '118', '6', '#', '', '', '1', '0', 'F', '0', '0', 'system:ossConfig:remove', '#', 1, now(), null, null, '');
 
+--postgresql创建于与mysql等效的的find_in_set函数
+CREATE OR REPLACE FUNCTION find_in_set(
+		value anyelement,
+		string_list text)
+		RETURNS integer
+		LANGUAGE 'plpgsql'
+		COST 100
+		VOLATILE PARALLEL UNSAFE
+	AS $BODY$
+	DECLARE
+position INTEGER;
+BEGIN
+		IF string_list = '' THEN
+			RETURN 0;
+ELSE
+			position := array_position(string_to_array(string_list, ','), value::TEXT);
+RETURN position;
+END IF;
+END;
+$BODY$;
+