mysql 视图1449错误

这次直接导入数据表和生成视图，结果在生成视图后出现了1449的错误，原SQL语句如下：

CREATE ALGORITHM = UNDEFINED DEFINER = `skip-grants user`@`skip-grants host` SQL SECURITY DEFINER VIEW `sysusersauthorities` AS SELECT DISTINCT

`ur`.`userId` AS `userId`,
`a`.`authorityId` AS `authorityId`

FROM
(
(
`sysusersroles` `ur`
JOIN `sysrolesauthorities` `ra`
)
JOIN `sysauthorities` `a`
)

WHERE
(
(
`ur`.`roleId` = `ra`.`roleId`
)
AND (
`a`.`authorityPath` LIKE CONVERT (
concat(
'%-',
concat(`ra`.`authorityId`, ''),
'-%'
) USING gbk
)
)
)

在网上搜索过的方法尝试无效后，同事直接删除了ALGORITHM = UNDEFINED DEFINER = `skip-grants user`@`skip-grants host` SQL SECURITY DEFINER 这一句，结果视图就能正常使用了。原理不是很清楚，记一下。