Manual:Links table/zh

The links table stored all the links to existing articles. This was good for a variety of functions, from link caching in the output functions to the "what links here" page. It was the "good twin" of the table.

'''从MediaWiki 1.5版本开始，该表不再使用，并可以安全删除. ''' 内容已在更新期间合并至. Regenerating the pagelinks table always is possible using the maintenance script.

l_from
l_from is the cur_id of the article that contains the link. (This is a change from 1.2, wherein the title of the article was stored. This was not very wise, and has now been fixed.)

l_to
l_to is the cur_id of the "target" article.

Schema summary
++-+--+-+-+---+ ++-+--+-+-+---+ ++-+--+-+-+---+
 * Field | Type            | Null | Key | Default | Extra |
 * l_from | int(8) unsigned | NO  | PRI | 0       |       |
 * l_to  | int(8) unsigned | NO   | PRI | 0       |       |

++-+--+-+-+---+ ++-+--+-+-+---+ ++-+--+-+-+---+
 * Field | Type            | Null | Key | Default | Extra |
 * l_from | varchar(255)   | NO   | PRI |         |       |
 * l_to  | int(8) unsigned | NO   | PRI | 0       |       |

++-+--+-+-+---+ ++-+--+-+-+---+ ++-+--+-+-+---+
 * Field | Type            | Null | Key | Default | Extra |
 * l_from | varchar(255)   | NO   |     |         |       |
 * l_to  | int(8) unsigned | NO   |     | 0       |       |

Indexes
 ++-+--+-+-+---+ ++-+--+-+-+---+ ++-+--+-+-+---+
 * Field | Type            | Null | Key | Default | Extra |
 * l_from | int(8) unsigned | NO  | PRI | 0       |       |
 * l_to  | int(8) unsigned | NO   | PRI | 0       |       |