Kézikönyv:querycache táblázat
↑ Kézikönyv:Tartalom | MediaWiki-adatbázis elrendezése | querycache táblázat |
MediaWiki-verzió: | ≥ 1.3 |
The querycache table is used for caching expensive grouped queries. This table is populated with the updateSpecialPages.php maintenance script.
Mezők
qc_type
Kulcsnév, általában a speciális lap alapneve.
qc_value
Valamilyen tárolt érték. Méretek, mennyiségek…
qc_namespace
A cél névtere. A qc_title változóval együtt használatos.
qc_title
A cél címe. A qc_namespace változóval együtt használatos.
Séma összefoglalója
MediaWiki-verzió: | ≥ 1.11 |
DESCRIBE querycache;
+--------------+------------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +--------------+------------------+------+-----+---------+-------+ | qc_type | varbinary(32) | NO | MUL | NULL | | | qc_value | int(10) unsigned | NO | | 0 | | | qc_namespace | int(11) | NO | | 0 | | | qc_title | varbinary(255) | NO | | | | +--------------+------------------+------+-----+---------+-------+
MediaWiki-verzió: | 1.10 |
DESCRIBE querycache;
+--------------+---------------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +--------------+---------------------+------+-----+---------+-------+ | qc_type | varbinary(32) | NO | MUL | NULL | | | qc_value | int(10) unsigned | NO | | 0 | | | qc_namespace | int(11) | NO | | 0 | | | qc_title | char(255) binary | NO | | NULL | | +--------------+---------------------+------+-----+---------+-------+
MediaWiki-verziók: | 1.5 – 1.9 |
DESCRIBE querycache;
+--------------+---------------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +--------------+---------------------+------+-----+---------+-------+ | qc_type | char(32) | NO | MUL | NULL | | | qc_value | int(5) unsigned | NO | | 0 | | | qc_namespace | int(11) | NO | | 0 | | | qc_title | char(255) binary | NO | | NULL | | +--------------+---------------------+------+-----+---------+-------+
MediaWiki-verziók: | 1.3 – 1.4 |
DESCRIBE querycache;
+--------------+---------------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +--------------+---------------------+------+-----+---------+-------+ | qc_type | char(32) | NO | MUL | NULL | | | qc_value | int(5) unsigned | NO | | 0 | | | qc_namespace | tinyint(2) unsigned | NO | | 0 | | | qc_title | char(255) binary | NO | | NULL | | +--------------+---------------------+------+-----+---------+-------+
Indexek
MediaWiki-verzió: | ≥ 1.5 |
SHOW INDEX IN querycache;
+------------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | +------------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | querycache | 1 | qc_type | 1 | qc_type | A | 0 | NULL | NULL | | BTREE | | | | querycache | 1 | qc_type | 2 | qc_value | A | 0 | NULL | NULL | | BTREE | | | +------------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+