Manual:Links table/de

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.

''' Beginning with the MediaWiki 1.5 release this table is not used, and can be safely deleted. ''' The contents have been migrated to the table on update. 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       |       |