手册：Change_tag表

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MediaWiki数据库布局

change_tag表

MediaWiki版本：

≥ 1.15

change_tag表格跟踪标签的修订、日志和最近的更改。 另请参阅tag_summary 和valid_tag 表。

字段

ct_id

MediaWiki版本：

≥ 1.28

表结构：主键

ct_rc_id

rc_id 为了这一变化。

ct_log_id

log_id 为了这一变化。

ct_rev_id

rev_id 为了这一变化。 请注意，这将是唯一的：对于应用于更改的每个标记，都会添加一个不同的行。

ct_tag

MediaWiki版本：

1.15 – 1.32

与应用于更改的一个tag相对应的字符串。

ct_tag_id

MediaWiki版本：

≥ 1.32

change_tag_def 表(change_tag_def.ctd_id)的主键的外键。 填充后，ct_tag就过时了。

ct_params

标记的参数。 例如：Extension:ContentTranslation 中的gerrit:139881.

架构摘要

MediaWiki版本：

≥ 1.43

DESCRIBE change_tag;

+-----------+---------------------+------+-----+---------+----------------+
| Field     | Type                | Null | Key | Default | Extra          |
+-----------+---------------------+------+-----+---------+----------------+
| ct_id     | int(10) unsigned    | NO   | PRI | NULL    | auto_increment |
| ct_rc_id  | bigint(20) unsigned | YES  | MUL | NULL    |                |
| ct_log_id | int(10) unsigned    | YES  | MUL | NULL    |                |
| ct_rev_id | int(10) unsigned    | YES  | MUL | NULL    |                |
| ct_params | blob                | YES  |     | NULL    |                |
| ct_tag_id | int(10) unsigned    | NO   | MUL | NULL    |                |
+-----------+---------------------+------+-----+---------+----------------+

MediaWiki版本：

1.36 – 1.42

DESCRIBE change_tag;

+-----------+------------------+------+-----+---------+----------------+
| Field     | Type             | Null | Key | Default | Extra          |
+-----------+------------------+------+-----+---------+----------------+
| ct_id     | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
| ct_rc_id  | int(10) unsigned | YES  | MUL | NULL    |                |
| ct_log_id | int(10) unsigned | YES  | MUL | NULL    |                |
| ct_rev_id | int(10) unsigned | YES  | MUL | NULL    |                |
| ct_params | blob             | YES  |     | NULL    |                |
| ct_tag_id | int(10) unsigned | NO   | MUL | NULL    |                |
+-----------+------------------+------+-----+---------+----------------+

MediaWiki版本：

1.33 – 1.35

DESCRIBE change_tag;

+-----------+------------------+------+-----+---------+----------------+
| Field     | Type             | Null | Key | Default | Extra          |
+-----------+------------------+------+-----+---------+----------------+
| ct_id     | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
| ct_rc_id  | int(11)          | YES  | MUL | NULL    |                |
| ct_log_id | int(10) unsigned | YES  | MUL | NULL    |                |
| ct_rev_id | int(10) unsigned | YES  | MUL | NULL    |                |
| ct_params | blob             | YES  |     | NULL    |                |
| ct_tag_id | int(10) unsigned | NO   | MUL | NULL    |                |
+-----------+------------------+------+-----+---------+----------------+

MediaWiki版本：

1.32

DESCRIBE change_tag;

+-----------+------------------+------+-----+---------+----------------+
| Field     | Type             | Null | Key | Default | Extra          |
+-----------+------------------+------+-----+---------+----------------+
| ct_id     | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
| ct_rc_id  | int(11)          | YES  | MUL | NULL    |                |
| ct_log_id | int(10) unsigned | YES  | MUL | NULL    |                |
| ct_rev_id | int(10) unsigned | YES  | MUL | NULL    |                |
| ct_tag    | varbinary(255)   | NO   | MUL |         |                |
| ct_params | blob             | YES  |     | NULL    |                |
| ct_tag_id | int(10) unsigned | YES  | MUL | NULL    |                |
+-----------+------------------+------+-----+---------+----------------+

MediaWiki版本：

1.30 – 1.31

DESCRIBE change_tag;

+-----------+------------------+------+-----+---------+----------------+
| Field     | Type             | Null | Key | Default | Extra          |
+-----------+------------------+------+-----+---------+----------------+
| ct_id     | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
| ct_rc_id  | int(11)          | YES  | MUL | NULL    |                |
| ct_log_id | int(10) unsigned | YES  | MUL | NULL    |                |
| ct_rev_id | int(10) unsigned | YES  | MUL | NULL    |                |
| ct_tag    | varbinary(255)   | NO   | MUL | NULL    |                |
| ct_params | blob             | YES  |     | NULL    |                |
+-----------+------------------+------+-----+---------+----------------+

MediaWiki版本：

1.28 – 1.29

DESCRIBE change_tag;

+-----------+------------------+------+-----+---------+----------------+
| Field     | Type             | Null | Key | Default | Extra          |
+-----------+------------------+------+-----+---------+----------------+
| ct_id     | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
| ct_rc_id  | int(11)          | YES  | MUL | NULL    |                |
| ct_log_id | int(11)          | YES  | MUL | NULL    |                |
| ct_rev_id | int(11)          | YES  | MUL | NULL    |                |
| ct_tag    | varbinary(255)   | NO   | MUL | NULL    |                |
| ct_params | blob             | YES  |     | NULL    |                |
+-----------+------------------+------+-----+---------+----------------+

MediaWiki版本：

1.15 – 1.27

DESCRIBE change_tag;

+-----------+----------------+------+-----+---------+-------+
| Field     | Type           | Null | Key | Default | Extra |
+-----------+----------------+------+-----+---------+-------+
| ct_rc_id  | int(11)        | YES  | MUL | NULL    |       |
| ct_log_id | int(11)        | YES  | MUL | NULL    |       |
| ct_rev_id | int(11)        | YES  | MUL | NULL    |       |
| ct_tag    | varbinary(255) | NO   | MUL | NULL    |       |
| ct_params | blob           | YES  |     | NULL    |       |
+-----------+----------------+------+-----+---------+-------+

索引

MediaWiki版本：

≥ 1.37

SHOW INDEX IN change_tag;

+------------+------------+---------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| Table      | Non_unique | Key_name      | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
+------------+------------+---------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| change_tag |          0 | PRIMARY       |            1 | ct_id       | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| change_tag |          0 | ct_rc_tag_id  |            1 | ct_rc_id    | A         |           0 |     NULL | NULL   | YES  | BTREE      |         |               |
| change_tag |          0 | ct_rc_tag_id  |            2 | ct_tag_id   | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| change_tag |          0 | ct_log_tag_id |            1 | ct_log_id   | A         |           0 |     NULL | NULL   | YES  | BTREE      |         |               |
| change_tag |          0 | ct_log_tag_id |            2 | ct_tag_id   | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| change_tag |          0 | ct_rev_tag_id |            1 | ct_rev_id   | A         |           0 |     NULL | NULL   | YES  | BTREE      |         |               |
| change_tag |          0 | ct_rev_tag_id |            2 | ct_tag_id   | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| change_tag |          1 | ct_tag_id_id  |            1 | ct_tag_id   | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| change_tag |          1 | ct_tag_id_id  |            2 | ct_rc_id    | A         |           0 |     NULL | NULL   | YES  | BTREE      |         |               |
| change_tag |          1 | ct_tag_id_id  |            3 | ct_rev_id   | A         |           0 |     NULL | NULL   | YES  | BTREE      |         |               |
| change_tag |          1 | ct_tag_id_id  |            4 | ct_log_id   | A         |           0 |     NULL | NULL   | YES  | BTREE      |         |               |
+------------+------------+---------------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+