+ "has-categories" => "EXISTS(SELECT `uri-id` FROM `post-category` WHERE `post-category`.`uri-id` = `post-user`.`uri-id` AND `post-category`.`uid` = `post-user`.`uid`)",
+ "has-media" => "EXISTS(SELECT `id` FROM `post-media` WHERE `post-media`.`uri-id` = `post-user`.`uri-id`)",
+ "has-categories" => "EXISTS(SELECT `uri-id` FROM `post-category` WHERE `post-category`.`uri-id` = `post-thread-user`.`uri-id` AND `post-category`.`uid` = `post-thread-user`.`uid`)",
+ "has-media" => "EXISTS(SELECT `id` FROM `post-media` WHERE `post-media`.`uri-id` = `post-thread-user`.`uri-id`)",