Manual:querycachetwo table

From MediaWiki.org
Jump to navigation Jump to search
Other languages:
English • ‎español • ‎polski • ‎日本語
Manual:Contents MediaWiki database layout querycachetwo table


MediaWiki version: 1.9

The querycachetwo table is a table used for caching expensive grouped queries that need two links (for example double-redirects).

Fields[edit]

qcc_type[edit]

A key name, generally the base name of the special page.

qcc_value[edit]

Some sort of stored value. Sizes, counts...

qcc_namespace[edit]

Target namespace. Used in conjunction with qcc_title.

qcc_title[edit]

Target title. Used in conjunction with qcc_namespace.

qcc_namespacetwo[edit]

Target namespace2. Used in conjunction with qcc_titletwo.

qcc_titletwo[edit]

Target title2. Used in conjunction with qcc_namespacetwo.

Schema summary[edit]

MediaWiki version: 1.11

DESCRIBE querycachetwo;

+------------------+------------------+------+-----+---------+-------+
| Field            | Type             | Null | Key | Default | Extra |
+------------------+------------------+------+-----+---------+-------+
| qcc_type         | varbinary(32)    | NO   | MUL | NULL    |       |
| qcc_value        | int(10) unsigned | NO   |     | 0       |       |
| qcc_namespace    | int(11)          | NO   |     | 0       |       |
| qcc_title        | varbinary(255)   | NO   |     |         |       |
| qcc_namespacetwo | int(11)          | NO   |     | 0       |       |
| qcc_titletwo     | varbinary(255)   | NO   |     |         |       |
+------------------+------------------+------+-----+---------+-------+
MediaWiki version: 1.10

DESCRIBE querycachetwo;

+------------------+------------------+------+-----+---------+-------+
| Field            | Type             | Null | Key | Default | Extra |
+------------------+------------------+------+-----+---------+-------+
| qcc_type         | varbinary(32)    | NO   | MUL | NULL    |       |
| qcc_value        | int(10) unsigned | NO   |     | 0       |       |
| qcc_namespace    | int(11)          | NO   |     | 0       |       |
| qcc_title        | char(255) binary | NO   |     | NULL    |       |
| qcc_namespacetwo | int(11)          | NO   |     | 0       |       |
| qcc_titletwo     | char(255) binary | NO   |     | NULL    |       |
+------------------+------------------+------+-----+---------+-------+
MediaWiki version: 1.9

DESCRIBE querycachetwo;

+------------------+------------------+------+-----+---------+-------+
| Field            | Type             | Null | Key | Default | Extra |
+------------------+------------------+------+-----+---------+-------+
| qcc_type         | char(32)         | NO   | MUL | NULL    |       |
| qcc_value        | int(5) unsigned  | NO   |     | 0       |       |
| qcc_namespace    | int(11)          | NO   |     | 0       |       |
| qcc_title        | char(255) binary | NO   |     | NULL    |       |
| qcc_namespacetwo | int(11)          | NO   |     | 0       |       |
| qcc_titletwo     | char(255) binary | NO   |     | NULL    |       |
+------------------+------------------+------+-----+---------+-------+