`first_attempt` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00' COMMENT 'First attempt',
`last_attempt` TIMESTAMP ON UPDATE CURRENT_TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT 'Last attempt',
`count` bigint(20) unsigned NOT NULL DEFAULT '0' COMMENT 'Counter',
`first_attempt` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00' COMMENT 'First attempt',
`last_attempt` TIMESTAMP ON UPDATE CURRENT_TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT 'Last attempt',
`count` bigint(20) unsigned NOT NULL DEFAULT '0' COMMENT 'Counter',