Google App Engine MySQL错误1064：语法错误

Question

我正在尝试运行此查询，但在Google App Engine（MySQL第2代v5.7）中不起作用。它向我显示语法错误。我不明白为什么它不起作用，因为在PHPMyAdmin（Mysql v5.7）中一切正常。

这是我的查询

SET @row_num := 0;
SELECT row_number
FROM (SELECT @row_num := @row_num + 1 as row_number, id FROM users ORDER BY id LIMIT 0, ?) result
WHERE result.id = ? LIMIT 1

错误：

Error 1064: 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 'SELECT row_number FROM (SELECT @row_num := @row_num + 1 as row_number, id FROM' at line 2