Extension:AbuseFilter/abuse filter history table

afh_id
Primary key

afh_filter
ID of the filter.

afh_user
User ID of the modifier.

afh_user_text
User name of the modifier.

afh_timestamp
Typical MediaWiki of the filter edit.

afh_pattern
The rules of this version of the filter.

afh_comments
The notes of this version of the filter.

afh_flags
A comma-imploded list of flags of this version of the filter. Example: enabled,hidden

afh_public_comments
The public name of this version of the filter.

afh_actions
A serialized array with the actions and their parameters relative to this action of the filter.

afh_deleted
Whether this version of the filter is deleted.   if it is,   otherwise.

afh_changed_fields
A comma-imploded list of fields changed in this version. Each one can be either "actions" or one of the following columns from the abuse_filter table: af_public_comments, af_pattern, af_comments, af_deleted, af_enabled, af_hidden, af_global, af_group

afh_group
The group this version of the filter belongs to, as defined in  .

Schema
mysql> describe abuse_filter_history; +-+-+--+-+-++ +-+-+--+-+-++ +-+-+--+-+-++
 * Field              | Type                | Null | Key | Default | Extra          |
 * afh_id             | bigint(20) unsigned | NO   | PRI | NULL    | auto_increment |
 * afh_filter         | bigint(20) unsigned | NO   | MUL | NULL    |                |
 * afh_user           | bigint(20) unsigned | NO   | MUL | NULL    |                |
 * afh_user_text      | varbinary(255)      | NO   | MUL | NULL    |                |
 * afh_timestamp      | binary(14)          | NO   | MUL | NULL    |                |
 * afh_pattern        | blob                | NO   |     | NULL    |                |
 * afh_comments       | blob                | NO   |     | NULL    |                |
 * afh_flags          | tinyblob            | NO   |     | NULL    |                |
 * afh_public_comments | tinyblob           | YES  |     | NULL    |                |
 * afh_actions        | blob                | YES  |     | NULL    |                |
 * afh_deleted        | tinyint(1)          | NO   |     | 0       |                |
 * afh_changed_fields | varbinary(255)      | NO   |     |         |                |
 * afh_group          | varbinary(64)       | YES  |     | NULL    |                |

Indexes
+--++---+--+---+---+-+--++--++-+---+ +--++---+--+---+---+-+--++--++-+---+ +--++---+--+---+---+-+--++--++-+---+
 * Table               | Non_unique | Key_name      | Seq_in_index | Column_name   | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
 * abuse_filter_history |         0 | PRIMARY       |            1 | afh_id        | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
 * abuse_filter_history |         1 | afh_filter    |            1 | afh_filter    | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
 * abuse_filter_history |         1 | afh_user      |            1 | afh_user      | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
 * abuse_filter_history |         1 | afh_user_text |            1 | afh_user_text | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
 * abuse_filter_history |         1 | afh_timestamp |            1 | afh_timestamp | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |