`contact`.`addr`, `contact`.`url` AS profile_url FROM `profile`
LEFT JOIN `user` ON `user`.`uid` = `profile`.`uid`
LEFT JOIN `contact` ON `contact`.`uid` = `user`.`uid`
`contact`.`addr`, `contact`.`url` AS profile_url FROM `profile`
LEFT JOIN `user` ON `user`.`uid` = `profile`.`uid`
LEFT JOIN `contact` ON `contact`.`uid` = `user`.`uid`