Extension:RelatedLinks/related links table

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 * Field              | Type                 | Null | Key | Default             | Extra          |
 * endex              | bigint(20)           | NO   | PRI | NULL                | auto_increment |
 * user_id            | int(10)              | NO   | MUL | 0                   |                |
 * links_id           | varchar(50)          | NO   | MUL |                     |                |
 * links_order        | tinyint(3)           | NO   |     | 0                   |                |
 * links_subject      | varchar(255)         | NO   |     |                     |                |
 * links_url          | varchar(255)         | NO   |     |                     |                |
 * links_enable       | enum('true','false') | NO   |     | true                |                |
 * links_datetime     | datetime             | NO   |     | 0000-00-00 00:00:00 |                |
 * links_import_domain | varchar(50)         | NO   |     |                     |                |