Manual:querycachetwo table

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querycachetwo table

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

Fields

qcc_type

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

qcc_value

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

qcc_namespace

Target namespace. Used in conjunction with qcc_title.

qcc_title

Target title. Used in conjunction with qcc_namespace.

qcc_namespacetwo

Target namespace2. Used in conjunction with qcc_titletwo.

qcc_titletwo

Target title2. Used in conjunction with qcc_namespacetwo.

Schema summary

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        | varchar(255) binary | NO   |     | NULL    |       |
| qcc_namespacetwo | int(11)             | NO   |     | 0       |       |
| qcc_titletwo     | varchar(255) binary | NO   |     | NULL    |       |
+------------------+---------------------+------+-----+---------+-------+

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

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