Manual:ip_changes table

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Manual:Contents MediaWiki database layout ip_changes table
MediaWiki version:
1.30

Every time an edit by a logged out user is saved, a row is created in the ip_changes table. This stores the IP as a hex representation so that we can more easily find edits within an IP range. One of the primary purposes of the table is to support IP range queries at Special:Contributions. This table was introduced in Gerrit change 370946.

FieldsEdit

ipc_rev_idEdit

Foreign key to the revision table, also serves as the unique primary key.

ipc_rev_timestampEdit

The timestamp of the revision.

ipc_hexEdit

Hex representation of the IP address, as returned by IP::toHex().

  • For IPv4 it will resemble: ABCD1234
  • For IPv6: v6-ABCD1234000000000000000000000000

BETWEEN is then used to identify revisions within a given range.

Schema summaryEdit

MediaWiki version:
1.36

DESCRIBE ip_changes;

+-------------------+------------------+------+-----+---------+-------+
| Field             | Type             | Null | Key | Default | Extra |
+-------------------+------------------+------+-----+---------+-------+
| ipc_rev_id        | int(10) unsigned | NO   | PRI | 0       |       |
| ipc_rev_timestamp | binary(14)       | NO   | MUL | NULL    |       |
| ipc_hex           | varbinary(35)    | NO   | MUL |         |       |
+-------------------+------------------+------+-----+---------+-------+
MediaWiki versions:
1.30 – 1.35

DESCRIBE ip_changes;

+-------------------+------------------+------+-----+----------------+-------+
| Field             | Type             | Null | Key | Default        | Extra |
+-------------------+------------------+------+-----+----------------+-------+
| ipc_rev_id        | int(10) unsigned | NO   | PRI | 0              |       |
| ipc_rev_timestamp | binary(14)       | NO   | MUL |                |       |
| ipc_hex           | varbinary(35)    | NO   | MUL |                |       |
+-------------------+------------------+------+-----+----------------+-------+