我尝试从https://mariadb.com/kb/en/sql-99/udt-example/运行此示例查询:
CREATE TYPE book_udt AS -- the UDT name will be book_udt
title CHAR(40), -- title is the first attribute
buying_price DECIMAL(9,2), -- buying_price is the second attribute
selling_price DECIMAL(9,2) -- selling_price is the third attribute
NOT FINAL -- this is a mandatory Finality Clause
METHOD profit( ) RETURNS DECIMAL(9,2); -- profit is a method, defined later
但是我收到语法错误。 MariaDB不支持像MySQL这样的超类型吗?根据文件,它确实...有人有超类型的经验,知道这里有什么问题吗?