This table stores a page namespace-title tuples, each one with a unique integer ID.This table is used for referenced page titles in the following tables that track links to pages:templatelinks,pagelinks,categorylinks.

This table contains immutable rows, which means only new rows are inserted, and never deleted or updated during normal wiki operation.However, thepruneUnusedLinkTargetRows.php maintenance script can be run to delete unused entries.

Access to this table from code is handled by instances of the classMediaWiki\Linker\LinkTargetLookup interface.

During schema migration, this table is filled using themigrateLinksTable.php maintenance script.$wgTemplateLinksSchemaMigrationStage controls whether data is read/written to this table.

Primary key.

Namespace of the link target.

Text part of link target excluding namespace.

DESCRIBElinktarget;

+--------------+---------------------+------+-----+---------+----------------+| 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    |                |+--------------+---------------------+------+-----+---------+----------------+

SHOWINDEXINlinktarget;

+------------+------------+--------------------+--------------+--------------+-----------+-------------+----------+--------+------+------------+---------+---------------+| 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      |         |               |+------------+------------+--------------------+--------------+--------------+-----------+-------------+----------+--------+------+------------+---------+---------------+

• MediaWiki database tables