Handbuch:site_identifiers-Tabelle

This page is a translated version of the page Manual:Site identifiers table and the translation is 60% complete.
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Handbuch:Inhaltsübersicht MediaWiki-Datenbank-Layout site_identifiers-Tabelle
MediaWiki Version:
1.21

Die site_identifiers-Tabelle enthält:

Felder

si_site

Id of site record in sites table.

si_type

Eine von zwei Werten:

  • interwiki: the key is an interwiki link identifier such as en, tr, simple
  • equivalent: the key is a navigation id used in e.g. the "language links" section

In most cases these entries are both present and are identical for Wikimedia sites. Some sites have only an interwiki entry, for example commons, mediawiki, meta.

si_key

A language code or other link code, such as en, tr, simple, commons, plwikimedia, identifying a site's type for purposes of links between sites in a wiki farm.

Schematische Übersicht

MediaWiki Version:
1.35

DESCRIBE site_identifiers;

+---------+------------------+------+-----+---------+-------+
| Field   | Type             | Null | Key | Default | Extra |
+---------+------------------+------+-----+---------+-------+
| si_type | varbinary(32)    | NO   | PRI | NULL    |       |
| si_key  | varbinary(32)    | NO   | PRI | NULL    |       |
| si_site | int(10) unsigned | NO   | MUL | NULL    |       |
+---------+------------------+------+-----+---------+-------+
MediaWiki Versions:
1.21 – 1.34

DESCRIBE site_identifiers;

+---------+------------------+------+-----+---------+-------+
| Field   | Type             | Null | Key | Default | Extra |
+---------+------------------+------+-----+---------+-------+
| si_site | int(10) unsigned | NO   | MUL | NULL    |       |
| si_type | varbinary(32)    | NO   | PRI | NULL    |       |
| si_key  | varbinary(32)    | NO   | PRI | NULL    |       |
+---------+------------------+------+-----+---------+-------+

Indexe

MediaWiki Version:
1.36

SHOW INDEX IN site_identifiers;

+------------------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| Table            | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
+------------------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| site_identifiers |          0 | PRIMARY  |            1 | si_type     | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| site_identifiers |          0 | PRIMARY  |            2 | si_key      | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| site_identifiers |          1 | si_site  |            1 | si_site     | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| site_identifiers |          1 | si_key   |            1 | si_key      | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
+------------------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+