When u export db tables using phpmyadmin, u will notice this:
SQL export compatibility:
from where u can choose for what type of DB server do u want to export, I create a table with one field, just like yours and tried to export it for more type of mysql vers, this is what its been returned:
For mysql 3.23:
CREATE TABLE `de_sters` (
`time` timestamp NULL
) TYPE=MyISAM;
For mysql 4.0, because is a big difference between 4.0 and 4.1:
CREATE TABLE `de_sters` (
`time` timestamp NULL
) TYPE=MyISAM;
For mysql 4.4.2 and I think its working from mysql 4.1 and above:
CREATE TABLE `de_sters` (
`time` timestamp NULL default CURRENT_TIMESTAMP
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
So that syntax is working only from mysql 4.1 above ...