Manual:Linktarget table/fa
↑ Manual:فهرست | MediaWiki database layout | linktarget table |
نسخهٔ مدیاویکی: | ≥ 1.38 |
این جدول یک تپلر نام فضا-ناقب صفحه را ذخیره می کند، هر کدام با یک شناسه عدد کامل منحصر به فرد. 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.
Fields
lt_id
Primary key.
lt_namespace
Namespace of the link target.
lt_title
Text part of link target excluding namespace.
Schema summary
نسخهٔ مدیاویکی: | ≥ 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 | | +--------------+---------------------+------+-----+---------+----------------+
Indexes
نسخهٔ مدیاویکی: | ≥ 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 | | | +------------+------------+--------------------+--------------+--------------+-----------+-------------+----------+--------+------+------------+---------+---------------+