`contact-id` int unsigned NOT NULL DEFAULT 0 COMMENT '',
`suggest-cid` int unsigned COMMENT 'Suggested contact',
`knowyou` boolean NOT NULL DEFAULT '0' COMMENT '',
- `duplex` boolean NOT NULL DEFAULT '0' COMMENT '',
+ `duplex` boolean NOT NULL DEFAULT '0' COMMENT 'deprecated',
`note` text COMMENT '',
`hash` varchar(255) NOT NULL DEFAULT '' COMMENT '',
`datetime` datetime NOT NULL DEFAULT '0001-01-01 00:00:00' COMMENT '',