Manual:Linktarget table/hu
↑ Kézikönyv:Tartalom | MediaWiki-adatbázis elrendezése | linktarget táblázat |
MediaWiki-verzió: | ≥ 1.38 |
This table stores a page namespace-title tuples, each one with a unique integer ID. This table is used for referenced page titles in tables that track links to pages: templatelinks , pagelinks tables.
This table contains immutable rows, which means only new rows are inserted, and never deleted or updated during normal wiki operation. However, the pruneUnusedLinkTargetRows.php maintenance script can be run to delete unused entries.
Access to this table from code is handled by instances of the class MediaWiki\Linker\LinkTargetLookup interface.
During schema migration, this table is filled using the migrateLinksTable.php maintenance script.
$wgTemplateLinksSchemaMigrationStage
controls whether data is read/written to this table.
Mezők
lt_id
Elsődleges kulcs.
lt_namespace
A hivatkozás céljának névtere.
lt_title
A hivatkozás céljának szöveges része a névtér kivételével.
Séma összefoglalója
MediaWiki-verzió: | ≥ 1.38 |
DESCRIBE linktarget;
+--------------+---------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +--------------+---------------------+------+-----+---------+----------------+ | lt_id | bigint(20) unsigned | NO | PRI | NULL | auto_increment | | lt_namespace | int(11) | NO | MUL | NULL | | | lt_title | varbinary(255) | NO | | NULL | | +--------------+---------------------+------+-----+---------+----------------+
Indexek
MediaWiki-verzió: | ≥ 1.38 Gerrit change 754989 |
SHOW INDEX IN linktarget;
+------------+------------+--------------------+--------------+--------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | +------------+------------+--------------------+--------------+--------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | linktarget | 0 | PRIMARY | 1 | lt_id | A | 0 | NULL | NULL | | BTREE | | | | linktarget | 0 | lt_namespace_title | 1 | lt_namespace | A | 0 | NULL | NULL | | BTREE | | | | linktarget | 0 | lt_namespace_title | 2 | lt_title | A | 0 | NULL | NULL | | BTREE | | | +------------+------------+--------------------+--------------+--------------+-----------+-------------+----------+--------+------+------------+---------+---------------+