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Ошибка

SQL-запрос :

--
--
CREATE TABLE `webchat_lines` (

`id` INT( 10 ) UNSIGNED NOT NULL AUTO_INCREMENT ,
`author` VARCHAR( 16 ) NOT NULL ,
`gravatar` VARCHAR( 32 ) NOT NULL ,
`text` VARCHAR( 255 ) NOT NULL ,
`ts` TIMESTAMP NOT NULL DEFAULTCURRENT_TIMESTAMP,
PRIMARY KEY ( `id` ) ,
KEY `ts` ( `ts` )
)ENGINE = MYISAM DEFAULT CHARSET = utf8
Ответ MySQL:
#1064 - You have an error in your SQL syntax near 'CURRENT_TIMESTAMP,
PRIMARY KEY (`id`),
KEY `ts` (`ts`)
) ENGINE=MyISAM ' at line 9