Manual:user_autocreate_serial table

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MediaWiki database layout

user_autocreate_serial table

MediaWiki version:

≥ 1.39 Gerrit change 767617

The user_autocreate_serial tables is for sequential name generation for auto-created temporary users.

Fields

uas_shard

MediaWiki version:

≥ 1.39

The segment of ID space, ID mod N, referred to by this row.

uas_value

MediaWiki version:

≥ 1.39

The maximum allocated ID value.

uas_year

MediaWiki version:

≥ 1.42

The year to which this row belongs, if the temporary account format includes the year. For IDs that are not combined with a year, this is 0.

Schema summary

MediaWiki version:

≥ 1.42

DESCRIBE user_autocreate_serial;

+-----------+----------------------+------+-----+---------+-------+
| Field     | Type                 | Null | Key | Default | Extra |
+-----------+----------------------+------+-----+---------+-------+
| uas_shard | int(10) unsigned     | NO   | PRI | NULL    |       |
| uas_value | int(10) unsigned     | NO   |     | NULL    |       |
| uas_year  | smallint(5) unsigned | NO   | PRI | NULL    |       |
+-----------+----------------------+------+-----+---------+-------+

MediaWiki versions:

1.39 – 1.41

DESCRIBE user_autocreate_serial;

+-----------+------------------+------+-----+---------+-------+
| Field     | Type             | Null | Key | Default | Extra |
+-----------+------------------+------+-----+---------+-------+
| uas_shard | int(10) unsigned | NO   | PRI | NULL    |       |
| uas_value | int(10) unsigned | NO   |     | NULL    |       |
+-----------+------------------+------+-----+---------+-------+

Indexes

MediaWiki version:

≥ 1.42

SHOW INDEX IN user_autocreate_serial;

+------------------------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+---------+
| Table                  | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | Ignored |
+------------------------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+---------+
| user_autocreate_serial |          0 | PRIMARY  |            1 | uas_shard   | A         |           0 |     NULL | NULL   |      | BTREE      |         |               | NO      |
| user_autocreate_serial |          0 | PRIMARY  |            2 | uas_year    | A         |           0 |     NULL | NULL   |      | BTREE      |         |               | NO      |
+------------------------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+---------+