Manual:block table

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MediaWiki database layout

block table

Blocks against user accounts, IP addresses and IP ranges.

Fields

bl_id

Primary key.

bl_target

The block target. Foreign key to block_target.bt_id.

bl_by_actor

Actor who made the block.

bl_reason_id

Key to comment_id. Text comment made by blocker.

bl_timestamp

Creation (or refresh) date in standard YMDHMS form. IP blocks expire automatically.

bl_anon_only

If set to 1, block applies only to logged-out users and temporary users.

bl_create_account

Block prevents account creation from matching IP addresses

bl_enable_autoblock

Block triggers autoblocks

bl_expiry

Time at which the block will expire. May be "infinity"

bl_deleted

If true, this block causes the username to be hidden, and the expiry must be infinite. This is denormalized into rev_deleted and the other deleted bitfields (T346716).

bl_block_email

Block prevents user from accessing Special:Emailuser

bl_allow_usertalk

Block allows user to edit their own talk page

bl_parent_block_id

ID of the block that caused this block to exist. Autoblocks set this to the original block so that the original block being deleted also deletes the autoblocks.

bl_sitewide

Block user from editing any page on the site (other than their own user talk page).

Schema summary

MediaWiki version:

≥ 1.42

DESCRIBE block;

+---------------------+---------------------+------+-----+---------+----------------+
| Field               | Type                | Null | Key | Default | Extra          |
+---------------------+---------------------+------+-----+---------+----------------+
| bl_id               | int(10) unsigned    | NO   | PRI | NULL    | auto_increment |
| bl_target           | int(10) unsigned    | NO   | MUL | NULL    |                |
| bl_by_actor         | bigint(20) unsigned | NO   |     | NULL    |                |
| bl_reason_id        | bigint(20) unsigned | NO   |     | NULL    |                |
| bl_timestamp        | binary(14)          | NO   | MUL | NULL    |                |
| bl_anon_only        | tinyint(1)          | NO   |     | 0       |                |
| bl_create_account   | tinyint(1)          | NO   |     | 1       |                |
| bl_enable_autoblock | tinyint(1)          | NO   |     | 1       |                |
| bl_expiry           | varbinary(14)       | NO   | MUL | NULL    |                |
| bl_deleted          | tinyint(1)          | NO   |     | 0       |                |
| bl_block_email      | tinyint(1)          | NO   |     | 0       |                |
| bl_allow_usertalk   | tinyint(1)          | NO   |     | 0       |                |
| bl_parent_block_id  | int(10) unsigned    | YES  | MUL | NULL    |                |
| bl_sitewide         | tinyint(1)          | NO   |     | 1       |                |
+---------------------+---------------------+------+-----+---------+----------------+

Indexes

MediaWiki version:

≥ 1.42

SHOW INDEX IN block;

+-------+------------+--------------------+--------------+--------------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| Table | Non_unique | Key_name           | Seq_in_index | Column_name        | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
+-------+------------+--------------------+--------------+--------------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| block |          0 | PRIMARY            |            1 | bl_id              | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| block |          1 | bl_timestamp       |            1 | bl_timestamp       | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| block |          1 | bl_target          |            1 | bl_target          | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| block |          1 | bl_expiry          |            1 | bl_expiry          | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
| block |          1 | bl_parent_block_id |            1 | bl_parent_block_id | A         |           0 |     NULL | NULL   | YES  | BTREE      |         |               |
+-------+------------+--------------------+--------------+--------------------+-----------+-------------+----------+--------+------+------------+---------+---------------+