The externallinks table is where MediaWiki stores and tracks external links. Note unless $wgRegisterInternalExternals is enabled (it is disabled by default), links to the same server are not recorded.
Up to version 1.41, protocol-relative links are stored twice in this table as per
r102951.
MediaWiki version:≥ 1.22
The primary key. Presently not used for anything, but will help with online schema changes.
The page id of the referring wiki page.
el_to_domain_index[edit] MediaWiki version:≥ 1.40
This is similar to el_index but only includes the protocol specification and domain in reverse, so http://en.wikipedia.org becomes http://org.wikipedia.en..
≥ 1.40
Only the path of el_to. Example: /wiki/Main_Page
The actual URL itself. It is passed to the browser.
This is the same URL as el_to search-optimized: username and password information is stripped, and the other components are reversed for faster searching, so http://user:password@sub.example.com/page.html becomes http://com.example.sub./page.html, which allows searches of the form 'Show all links pointing to *.example.com'.
This is el_index truncated to 60 bytes to allow for sortable queries that aren't supported by a partial index.
DESCRIBE externallinks;
+--------------------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +--------------------+------------------+------+-----+---------+----------------+ | el_id | int(10) unsigned | NO | PRI | NULL | auto_increment | | el_from | int(10) unsigned | NO | MUL | 0 | | | el_to_domain_index | varbinary(255) | NO | MUL | | | | el_to_path | blob | YES | | NULL | | +--------------------+------------------+------+-----+---------+----------------+
DESCRIBE externallinks;
+--------------------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +--------------------+------------------+------+-----+---------+----------------+ | el_id | int(10) unsigned | NO | PRI | NULL | auto_increment | | el_from | int(10) unsigned | NO | MUL | 0 | | | el_to | blob | NO | MUL | NULL | | | el_index | blob | NO | MUL | NULL | | | el_index_60 | varbinary(60) | NO | MUL | NULL | | | el_to_domain_index | varbinary(255) | NO | MUL | | | | el_to_path | blob | YES | | NULL | | +--------------------+------------------+------+-----+---------+----------------+MediaWiki versions:
1.30 – 1.39
DESCRIBE externallinks;
+-------------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-------------+------------------+------+-----+---------+----------------+ | el_id | int(10) unsigned | NO | PRI | NULL | auto_increment | | el_from | int(10) unsigned | NO | MUL | 0 | | | el_to | blob | NO | MUL | NULL | | | el_index | blob | NO | MUL | NULL | | | el_index_60 | varbinary(60) | NO | MUL | NULL | | +-------------+------------------+------+-----+---------+----------------+
DESCRIBE externallinks;
+-------------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-------------+------------------+------+-----+---------+----------------+ | el_id | int(10) unsigned | NO | PRI | NULL | auto_increment | | el_from | int(10) unsigned | NO | MUL | 0 | | | el_to | blob | NO | MUL | NULL | | | el_index | blob | NO | MUL | NULL | | | el_index_60 | varbinary(60) | NO | MUL | | | +-------------+------------------+------+-----+---------+----------------+MediaWiki versions:
1.22 – 1.28
DESCRIBE externallinks;
+----------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +----------+------------------+------+-----+---------+----------------+ | el_id | int(10) unsigned | NO | PRI | NULL | auto_increment | | el_from | int(10) unsigned | NO | MUL | 0 | | | el_to | blob | NO | MUL | NULL | | | el_index | blob | NO | MUL | NULL | | +----------+------------------+------+-----+---------+----------------+MediaWiki versions:
1.10 – 1.21
DESCRIBE externallinks;
+----------+------------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +----------+------------------+------+-----+---------+-------+ | el_from | int(10) unsigned | NO | MUL | 0 | | | el_to | blob | NO | MUL | NULL | | | el_index | blob | NO | MUL | NULL | | +----------+------------------+------+-----+---------+-------+MediaWiki versions:
1.6 – 1.9
DESCRIBE externallinks;
+----------+-----------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +----------+-----------------+------+-----+---------+-------+ | el_from | int(8) unsigned | NO | MUL | 0 | | | el_to | blob | NO | MUL | NULL | | | el_index | blob | NO | MUL | NULL | | +----------+-----------------+------+-----+---------+-------+MediaWiki version:
≥ 1.41
SHOW INDEX IN externallinks;
+---------------+------------+----------------------------+--------------+--------------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | +---------------+------------+----------------------------+--------------+--------------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | externallinks | 0 | PRIMARY | 1 | el_id | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_from | 1 | el_from | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_to_domain_index_to_path | 1 | el_to_domain_index | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_to_domain_index_to_path | 2 | el_to_path | A | 0 | 60 | NULL | YES | BTREE | | | +---------------+------------+----------------------------+--------------+--------------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
SHOW INDEX IN externallinks;
+---------------+------------+----------------------------+--------------+--------------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | +---------------+------------+----------------------------+--------------+--------------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | externallinks | 0 | PRIMARY | 1 | el_id | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_from | 1 | el_from | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_to | 1 | el_to | A | 0 | 60 | NULL | | BTREE | | | | externallinks | 1 | el_to | 2 | el_from | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_index | 1 | el_index | A | 0 | 60 | NULL | | BTREE | | | | externallinks | 1 | el_index_60 | 1 | el_index_60 | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_index_60 | 2 | el_id | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_from_index_60 | 1 | el_from | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_from_index_60 | 2 | el_index_60 | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_from_index_60 | 3 | el_id | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_to_domain_index_to_path | 1 | el_to_domain_index | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_to_domain_index_to_path | 2 | el_to_path | A | 0 | 60 | NULL | YES | BTREE | | | +---------------+------------+----------------------------+--------------+--------------------+-----------+-------------+----------+--------+------+------------+---------+---------------+MediaWiki versions:
1.30 – 1.39
SHOW INDEX IN externallinks;
+---------------+------------+------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | +---------------+------------+------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | externallinks | 0 | PRIMARY | 1 | el_id | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_from | 1 | el_from | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_from | 2 | el_to | A | 0 | 40 | NULL | | BTREE | | | | externallinks | 1 | el_to | 1 | el_to | A | 0 | 60 | NULL | | BTREE | | | | externallinks | 1 | el_to | 2 | el_from | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_index | 1 | el_index | A | 0 | 60 | NULL | | BTREE | | | | externallinks | 1 | el_index_60 | 1 | el_index_60 | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_index_60 | 2 | el_id | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_from_index_60 | 1 | el_from | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_from_index_60 | 2 | el_index_60 | A | 0 | NULL | NULL | | BTREE | | | | externallinks | 1 | el_from_index_60 | 3 | el_id | A | 0 | NULL | NULL | | BTREE | | | +---------------+------------+------------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4