Multi-table DELETE + RETURNING = parse error

DELETE [LOW_PRIORITY] [QUICK] [IGNORE]

    tbl_name[.*] [, tbl_name[.*]] ...

    FROM table_references

    [WHERE where_condition]

    [RETURNING select_expr [, select_expr ...]]

MariaDB [test]> DELETE post FROM blog INNER JOIN post WHERE blog.id = post.blog_id RETURNING post.title;

ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'RETURNING post.title' at line 1