MySQL 5.1.30和5.7.16之间的“删除”语法更改

Question

将MySQL数据库从 5.1.30 迁移到 5.7.16 之后，一些存储过程一直给我这样的错误：

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'A from Tab A
  where A.`Type` = _Type
    and A.`ID` '.

有问题的代码片段如下所示：

delete Tab A from Tab A
  where A.`Type` = _Type
    and A.`ID` = _ID;

根据我对DELETE syntax的MySQL参考手册条目的理解，这应该是一个有效的代码，但它仍然给我错误。

我通过将代码更改为：

来解决问题

delete from Tab
  where `Type` = _Type
    and `ID` = _ID;

但为什么它首先失败了？

我还尝试了根据手册允许的那两种变体，但未能执行：

delete from Tab A
  where A.`Type` = _Type
    and A.`ID` = _ID;

delete Tab as A from Tab as A
  where A.`Type` = _Type
    and A.`ID` = _ID;