Manuel:table pagelinks

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Manuel:Contenu Schéma de base de données MédiaWiki table pagelinks
Version de MediaWiki :
1.5

The pagelinks table tracks all internal links in the wiki. Each entry contains the source page's ID and namespace (number), and the article name (in text) and namespace (number) that is being linked to from within that source page. There may be many instances of the source page's ID, as many as the internal links within it, but there can be only one entry per internal link for any page ID (or MySQL will yell out a fatal error).

Note that the target page may or may not exist, and due to renames and deletions may refer to different page records as time goes by.

The table was introduced in version 1.5. It is the result of merging the links table and the brokenlinks table of version 1.4. Regenerating the pagelinks table is always possible using the rebuildall.php maintenance script.

Fields

pl_from

page_id de la page contenant le lien.

pl_namespace

page_namespace de la page cible. The target page may or may not exist, and due to renames and deletions may refer to different page records as time goes by.

pl_title

Special:MyLanguage/Manual:Page title de la page cible. The target page may or may not exist, and due to renames and deletions may refer to different page records as time goes by. Spaces are converted to underscores, and the first letter may be automatically capitalized. So for example, a link to foo bar would have a pl_title of "Foo_bar" assuming $wgCapitalLinks = true; and no $wgCapitalLinkOverrides.

pl_from_namespace

Version de MediaWiki :
1.24

page_namespace de la page contenant le lien.

Schema summary

Version de MediaWiki :
1.36

DESCRIBE pagelinks;

+-------------------+------------------+------+-----+---------+-------+
| Field             | Type             | Null | Key | Default | Extra |
+-------------------+------------------+------+-----+---------+-------+
| pl_from           | int(10) unsigned | NO   | PRI | 0       |       |
| pl_namespace      | int(11)          | NO   | PRI | 0       |       |
| pl_title          | varbinary(255)   | NO   | PRI |         |       |
| pl_from_namespace | int(11)          | NO   | MUL | 0       |       |
+-------------------+------------------+------+-----+---------+-------+
Versions de MediaWiki :
1.26 – 1.35

DESCRIBE pagelinks;

+-------------------+------------------+------+-----+---------+-------+
| Field             | Type             | Null | Key | Default | Extra |
+-------------------+------------------+------+-----+---------+-------+
| pl_from           | int(10) unsigned | NO   | PRI | 0       |       |
| pl_from_namespace | int(11)          | NO   | MUL | 0       |       |
| pl_namespace      | int(11)          | NO   | PRI | 0       |       |
| pl_title          | varbinary(255)   | NO   | PRI |         |       |
+-------------------+------------------+------+-----+---------+-------+
Versions de MediaWiki :
1.24 – 1.25

DESCRIBE pagelinks;

+-------------------+------------------+------+-----+---------+-------+
| Field             | Type             | Null | Key | Default | Extra |
+-------------------+------------------+------+-----+---------+-------+
| pl_from           | int(10) unsigned | NO   | PRI | 0       |       |
| pl_from_namespace | int(11)          | NO   |     | 0       |       |
| pl_namespace      | int(11)          | NO   | PRI | 0       |       |
| pl_title          | varbinary(255)   | NO   | PRI |         |       |
+-------------------+------------------+------+-----+---------+-------+
Versions de MediaWiki :
1.10 – 1.23

DESCRIBE pagelinks;

+--------------+---------------------+------+-----+---------+-------+
| Field        | Type                | Null | Key | Default | Extra |
+--------------+---------------------+------+-----+---------+-------+
| pl_from      | int(10) unsigned    | NO   | PRI | 0       |       |
| pl_namespace | int(11)             | NO   | PRI | 0       |       |
| pl_title     | varchar(255) binary | NO   | PRI | NULL    |       |
+--------------+---------------------+------+-----+---------+-------+
Versions de MediaWiki :
1.5 – 1.9

DESCRIBE pagelinks;

+--------------+---------------------+------+-----+---------+-------+
| Field        | Type                | Null | Key | Default | Extra |
+--------------+---------------------+------+-----+---------+-------+
| pl_from      | int(8) unsigned     | NO   | PRI | 0       |       |
| pl_namespace | int(11)             | NO   | PRI | 0       |       |
| pl_title     | varchar(255) binary | NO   | PRI | NULL    |       |
+--------------+---------------------+------+-----+---------+-------+

Indexes

Version de MediaWiki :
1.30

SHOW INDEX IN pagelinks;

+-----------+------------+------------------------+--------------+-------------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| Table     | Non_unique | Key_name               | Seq_in_index | Column_name       | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
+-----------+------------+------------------------+--------------+-------------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| pagelinks |          0 | PRIMARY                |            1 | pl_from           | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| pagelinks |          0 | PRIMARY                |            2 | pl_namespace      | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| pagelinks |          0 | PRIMARY                |            3 | pl_title          | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| pagelinks |          1 | pl_namespace           |            1 | pl_namespace      | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| pagelinks |          1 | pl_namespace           |            2 | pl_title          | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| pagelinks |          1 | pl_namespace           |            3 | pl_from           | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| pagelinks |          1 | pl_backlinks_namespace |            1 | pl_from_namespace | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| pagelinks |          1 | pl_backlinks_namespace |            2 | pl_namespace      | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| pagelinks |          1 | pl_backlinks_namespace |            3 | pl_title          | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| pagelinks |          1 | pl_backlinks_namespace |            4 | pl_from           | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
+-----------+------------+------------------------+--------------+-------------------+-----------+-------------+----------+--------+------+------------+---------+---------------+