mysql - CURRENT_DATE/CURDATE() 不能作为默认 DATE 值工作

Question

这里是一个非常直截了当的问题，我认为这应该有效，但它没有。为什么不呢？

CREATE TABLE INVOICE(
   INVOICEDATE DATE NOT NULL DEFAULT CURRENT_DATE
)

Answer 1

因为不支持所以不能用

The DEFAULT clause specifies a default value for a column. With one exception, the default value must be a constant; it cannot be a function or an expression. This means, for example, that you cannot set the default for a date column to be the value of a function such as NOW() or CURRENT_DATE. The exception is that you can specify CURRENT_TIMESTAMP as the default for a TIMESTAMP column

http://dev.mysql.com/doc/refman/5.5/en/create-table.html