| ↑ Manual:Contents | MediaWiki database layout | oldimage table | 
The oldimage table holds information about old revisions of files. It will be filled when one uploads a new version of an existing file to the wiki. These files are moved to the folder /image/archive. Information on deleted images however will not be stored in the oldimage table; on deletion information is moved to the filearchive instead.
See also: Manual:Filearchive table
Fields
oi_name
Name of the image (file and article, seems to be the same). Comparable to img_name.
oi_archive_name
Name of the image, prefixed by a timestamp of the time where it became an old revision
oi_size
File size in bytes. Comparable to img_size.
oi_width
| MediaWiki version: | ≥ 1.5 | 
Image width, in pixels. Comparable to img_width.
oi_height
| MediaWiki version: | ≥ 1.5 | 
Image height, in pixels. Comparable to img_height.
oi_bits
| MediaWiki version: | ≥ 1.5 | 
Bit-depth of GIF/PNG palette-based images (up to 16-bit). Non-palette images (JPEG/PNG/TIFF/SVG) are 0 or 8. All other files default to 0. Comparable to img_bits.
oi_description
| MediaWiki version: | ≤ 1.32 | 
Description field given during upload. It's not the description page (associated File: wiki page), but the "summary" provided by the user in case of reupload. Comparable to img_description.
(deprecated in 1.30) oi_description_id and the comment table should be used instead!
oi_description_id
| MediaWiki version: | ≥ 1.30 | 
This is a foreign key to comment_id in the comment table.
oi_user
| MediaWiki version: | ≤ 1.33 | 
{{ll|Manual:User_table#user_id|User ID}} of the user who uploaded the file. Comparable to img_user.
(deprecated in 1.31)
 While Actor migration is being done, and depending on the configuration setting $wgActorTableSchemaMigrationStage, this field may be empty and the actor performing the edit can be stored in the oi_actor field instead.
oi_user_text
| MediaWiki version: | ≤ 1.33 | 
Name of original uploader. Comparable to img_user_text.
(deprecated in 1.31)
 While Actor migration is being done, and depending on the configuration setting $wgActorTableSchemaMigrationStage, this field may be empty and the actor performing the edit can be stored in the oi_actor field instead.
oi_actor
| MediaWiki version: | ≥ 1.31 | 
This is a foreign key to actor_id in the actor table. Comparable to img_actor.
 Replaces oi_user and oi_user_text when the Actor migration is done (and enabled with the configuration setting $wgActorTableSchemaMigrationStage in versions 1.31–1.33).
oi_timestamp
Timestamp of original file upload. Comparable to img_timestamp.
oi_metadata
| MediaWiki version: | ≥ 1.11 | 
Serialized PHP array of the file's properties. Comparable to img_metadata.
oi_media_type
| MediaWiki version: | ≥ 1.11 | 
Possibilities are: UNKNOWN, BITMAP, DRAWING, AUDIO, VIDEO, MULTIMEDIA, OFFICE, TEXT, EXECUTABLE, ARCHIVE
Comparable to img_media_type.
oi_major_mime
| MediaWiki version: | ≥ 1.11 | 
Possibilities are: unknown, application, audio, chemical, image, message, model, multipart, text, video
Comparable to img_major_mime.
oi_minor_mime
| MediaWiki version: | ≥ 1.11 | 
E.g. jpeg, gif, png, etc.
Comparable to img_minor_mime.
oi_deleted
| MediaWiki version: | ≥ 1.11 | 
Set when the image revision was deleted.
oi_sha1
| MediaWiki version: | ≥ 1.11 | 
The SHA-1 hash of the file contents in base 36 format. includes/GlobalFunctions.php's wfBaseConvert is used to convert from base 16 (hexadecimal) to base 36 and then pad the result to 31 characters. Comparable to img_sha1.
Schema summary
| MediaWiki version: | ≥ 1.36 | 
DESCRIBE oldimage;
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+---------+-------+
| Field             | Type                                                                                                        | Null | Key | Default | Extra |
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+---------+-------+
| oi_name           | varbinary(255)                                                                                              | NO   | MUL |         |       |
| oi_archive_name   | varbinary(255)                                                                                              | NO   |     |         |       |
| oi_size           | int(10) unsigned                                                                                            | NO   |     | 0       |       |
| oi_width          | int(11)                                                                                                     | NO   |     | 0       |       |
| oi_height         | int(11)                                                                                                     | NO   |     | 0       |       |
| oi_bits           | int(11)                                                                                                     | NO   |     | 0       |       |
| oi_description_id | bigint(20) unsigned                                                                                         | NO   |     | NULL    |       |
| oi_actor          | bigint(20) unsigned                                                                                         | NO   | MUL | NULL    |       |
| oi_timestamp      | binary(14)                                                                                                  | NO   |     | NULL    |       |
| oi_metadata       | mediumblob                                                                                                  | NO   |     | NULL    |       |
| oi_media_type     | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE','3D') | YES  |     | NULL    |       |
| oi_major_mime     | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')       | NO   |     | unknown |       |
| oi_minor_mime     | varbinary(100)                                                                                              | NO   |     | unknown |       |
| oi_deleted        | tinyint(3) unsigned                                                                                         | NO   |     | 0       |       |
| oi_sha1           | varbinary(32)                                                                                               | NO   | MUL |         |       |
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+---------+-------+
| MediaWiki versions: |  1.34 – 1.35 | 
DESCRIBE oldimage;
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| Field             | Type                                                                                                        | Null | Key | Default        | Extra |
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| oi_name           | varbinary(255)                                                                                              | NO   | MUL |                |       |
| oi_archive_name   | varbinary(255)                                                                                              | NO   |     |                |       |
| oi_size           | int(10) unsigned                                                                                            | NO   |     | 0              |       |
| oi_width          | int(11)                                                                                                     | NO   |     | 0              |       |
| oi_height         | int(11)                                                                                                     | NO   |     | 0              |       |
| oi_bits           | int(11)                                                                                                     | NO   |     | 0              |       |
| oi_description_id | bigint(20) unsigned                                                                                         | NO   |     | NULL           |       |
| oi_actor          | bigint(20) unsigned                                                                                         | NO   | MUL | NULL           |       |
| oi_timestamp      | binary(14)                                                                                                  | NO   |     |                |       |
| oi_metadata       | mediumblob                                                                                                  | NO   |     | NULL           |       |
| oi_media_type     | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE','3D') | YES  |     | NULL           |       |
| oi_major_mime     | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')       | NO   |     | unknown        |       |
| oi_minor_mime     | varbinary(100)                                                                                              | NO   |     | unknown        |       |
| oi_deleted        | tinyint(3) unsigned                                                                                         | NO   |     | 0              |       |
| oi_sha1           | varbinary(32)                                                                                               | NO   | MUL |                |       |
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| MediaWiki version: |  1.33 | 
DESCRIBE oldimage;
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| Field             | Type                                                                                                        | Null | Key | Default        | Extra |
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| oi_name           | varbinary(255)                                                                                              | NO   | MUL |                |       |
| oi_archive_name   | varbinary(255)                                                                                              | NO   |     |                |       |
| oi_size           | int(10) unsigned                                                                                            | NO   |     | 0              |       |
| oi_width          | int(11)                                                                                                     | NO   |     | 0              |       |
| oi_height         | int(11)                                                                                                     | NO   |     | 0              |       |
| oi_bits           | int(11)                                                                                                     | NO   |     | 0              |       |
| oi_description_id | bigint(20) unsigned                                                                                         | NO   |     | NULL           |       |
| oi_user           | int(10) unsigned                                                                                            | NO   |     | 0              |       |
| oi_user_text      | varbinary(255)                                                                                              | NO   | MUL |                |       |
| oi_actor          | bigint(20) unsigned                                                                                         | NO   | MUL | 0              |       |
| oi_timestamp      | binary(14)                                                                                                  | NO   |     |                |       |
| oi_metadata       | mediumblob                                                                                                  | NO   |     | NULL           |       |
| oi_media_type     | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE','3D') | YES  |     | NULL           |       |
| oi_major_mime     | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')       | NO   |     | unknown        |       |
| oi_minor_mime     | varbinary(100)                                                                                              | NO   |     | unknown        |       |
| oi_deleted        | tinyint(3) unsigned                                                                                         | NO   |     | 0              |       |
| oi_sha1           | varbinary(32)                                                                                               | NO   | MUL |                |       |
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| MediaWiki versions: |  1.31 – 1.32 | 
DESCRIBE oldimage;
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| Field             | Type                                                                                                        | Null | Key | Default        | Extra |
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| oi_name           | varbinary(255)                                                                                              | NO   | MUL |                |       |
| oi_archive_name   | varbinary(255)                                                                                              | NO   |     |                |       |
| oi_size           | int(10) unsigned                                                                                            | NO   |     | 0              |       |
| oi_width          | int(11)                                                                                                     | NO   |     | 0              |       |
| oi_height         | int(11)                                                                                                     | NO   |     | 0              |       |
| oi_bits           | int(11)                                                                                                     | NO   |     | 0              |       |
| oi_description    | varbinary(767)                                                                                              | NO   |     |                |       |
| oi_description_id | bigint(20) unsigned                                                                                         | NO   |     | 0              |       |
| oi_user           | int(10) unsigned                                                                                            | NO   |     | 0              |       |
| oi_user_text      | varbinary(255)                                                                                              | NO   | MUL |                |       |
| oi_actor          | bigint(20) unsigned                                                                                         | NO   | MUL | 0              |       |
| oi_timestamp      | binary(14)                                                                                                  | NO   |     |                |       |
| oi_metadata       | mediumblob                                                                                                  | NO   |     | NULL           |       |
| oi_media_type     | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE','3D') | YES  |     | NULL           |       |
| oi_major_mime     | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')       | NO   |     | unknown        |       |
| oi_minor_mime     | varbinary(100)                                                                                              | NO   |     | unknown        |       |
| oi_deleted        | tinyint(3) unsigned                                                                                         | NO   |     | 0              |       |
| oi_sha1           | varbinary(32)                                                                                               | NO   | MUL |                |       |
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| MediaWiki version: |  1.30 | 
DESCRIBE oldimage;
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| Field             | Type                                                                                                        | Null | Key | Default        | Extra |
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| oi_name           | varbinary(255)                                                                                              | NO   | MUL |                |       |
| oi_archive_name   | varbinary(255)                                                                                              | NO   |     |                |       |
| oi_size           | int(10) unsigned                                                                                            | NO   |     | 0              |       |
| oi_width          | int(11)                                                                                                     | NO   |     | 0              |       |
| oi_height         | int(11)                                                                                                     | NO   |     | 0              |       |
| oi_bits           | int(11)                                                                                                     | NO   |     | 0              |       |
| oi_description    | varbinary(767)                                                                                              | NO   |     |                |       |
| oi_description_id | bigint(20) unsigned                                                                                         | NO   |     | 0              |       |
| oi_user           | int(10) unsigned                                                                                            | NO   |     | 0              |       |
| oi_user_text      | varbinary(255)                                                                                              | NO   | MUL | NULL           |       |
| oi_timestamp      | binary(14)                                                                                                  | NO   |     |                |       |
| oi_metadata       | mediumblob                                                                                                  | NO   |     | NULL           |       |
| oi_media_type     | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE','3D') | YES  |     | NULL           |       |
| oi_major_mime     | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')       | NO   |     | unknown        |       |
| oi_minor_mime     | varbinary(100)                                                                                              | NO   |     | unknown        |       |
| oi_deleted        | tinyint(3) unsigned                                                                                         | NO   |     | 0              |       |
| oi_sha1           | varbinary(32)                                                                                               | NO   | MUL |                |       |
+-------------------+-------------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| MediaWiki versions: |  1.25 – 1.29 | 
DESCRIBE oldimage;
+-----------------+--------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| Field           | Type                                                                                                   | Null | Key | Default        | Extra |
+-----------------+--------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| oi_name         | varbinary(255)                                                                                         | NO   | MUL |                |       |
| oi_archive_name | varbinary(255)                                                                                         | NO   |     |                |       |
| oi_size         | int(10) unsigned                                                                                       | NO   |     | 0              |       |
| oi_width        | int(11)                                                                                                | NO   |     | 0              |       |
| oi_height       | int(11)                                                                                                | NO   |     | 0              |       |
| oi_bits         | int(11)                                                                                                | NO   |     | 0              |       |
| oi_description  | varbinary(767)                                                                                         | NO   |     | NULL           |       |
| oi_user         | int(10) unsigned                                                                                       | NO   |     | 0              |       |
| oi_user_text    | varbinary(255)                                                                                         | NO   | MUL | NULL           |       |
| oi_timestamp    | binary(14)                                                                                             | NO   |     |                |       |
| oi_metadata     | mediumblob                                                                                             | NO   |     | NULL           |       |
| oi_media_type   | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE') | YES  |     | NULL           |       |
| oi_major_mime   | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')  | NO   |     | unknown        |       |
| oi_minor_mime   | varbinary(100)                                                                                         | NO   |     | unknown        |       |
| oi_deleted      | tinyint(3) unsigned                                                                                    | NO   |     | 0              |       |
| oi_sha1         | varbinary(32)                                                                                          | NO   | MUL |                |       |
+-----------------+--------------------------------------------------------------------------------------------------------+------+-----+----------------+-------+
| MediaWiki version: |  1.24 | 
DESCRIBE oldimage;
 +-----------------+--------------------------------------------------------------------------------------------------------+------+-----+---------+-------+
 | Field           | Type                                                                                                   | Null | Key | Default | Extra |
 +-----------------+--------------------------------------------------------------------------------------------------------+------+-----+---------+-------+
 | oi_name         | varchar(255) binary                                                                                    | NO   | MUL | NULL    |       |
 | oi_archive_name | varchar(255) binary                                                                                    | NO   |     | NULL    |       |
 | oi_size         | int(8) unsigned                                                                                        | NO   |     | 0       |       |
 | oi_width        | int(5)                                                                                                 | NO   |     | 0       |       |
 | oi_height       | int(5)                                                                                                 | NO   |     | 0       |       |
 | oi_bits         | int(3)                                                                                                 | NO   |     | 0       |       |
 | oi_description  | tinyblob                                                                                               | NO   |     | NULL    |       |
 | oi_user         | int(5) unsigned                                                                                        | NO   |     | 0       |       |
 | oi_user_text    | varchar(255) binary                                                                                    | NO   | MUL | NULL    |       |
 | oi_timestamp    | binary(14)                                                                                             | NO   |     | NULL    |       |
 | oi_metadata     | mediumblob                                                                                             | NO   |     | NULL    |       |
 | oi_media_type   | ENUM('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE') | YES  |     | NULL    |       |
 | oi_major_mime   | ENUM('unknown','application','audio','image','text','video','message','model','multipart','chemical')  | NO   |     | unknown |       |
 | oi_minor_mime   | varbinary(100)                                                                                         | NO   |     | unknown |       |
 | oi_deleted      | tinyint(3) unsigned                                                                                    | NO   |     | 0       |       |
 | oi_sha1         | varbinary(32)                                                                                          | NO   | MUL | NULL    |       |
 +-----------------+--------------------------------------------------------------------------------------------------------+------+-----+---------+-------+
| MediaWiki versions: |  1.16 – 1.23 | 
DESCRIBE oldimage;
 +-----------------+--------------------------------------------------------------------------------------------------------+------+-----+---------+-------+
 | Field           | Type                                                                                                   | Null | Key | Default | Extra |
 +-----------------+--------------------------------------------------------------------------------------------------------+------+-----+---------+-------+
 | oi_name         | varchar(255) binary                                                                                    | NO   | MUL | NULL    |       |
 | oi_archive_name | varchar(255) binary                                                                                    | NO   |     | NULL    |       |
 | oi_size         | int(8) unsigned                                                                                        | NO   |     | 0       |       |
 | oi_width        | int(5)                                                                                                 | NO   |     | 0       |       |
 | oi_height       | int(5)                                                                                                 | NO   |     | 0       |       |
 | oi_bits         | int(3)                                                                                                 | NO   |     | 0       |       |
 | oi_description  | tinyblob                                                                                               | NO   |     | NULL    |       |
 | oi_user         | int(5) unsigned                                                                                        | NO   |     | 0       |       |
 | oi_user_text    | varchar(255) binary                                                                                    | NO   | MUL | NULL    |       |
 | oi_timestamp    | binary(14)                                                                                             | NO   |     | NULL    |       |
 | oi_metadata     | mediumblob                                                                                             | NO   |     | NULL    |       |
 | oi_media_type   | ENUM('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE') | YES  |     | NULL    |       |
 | oi_major_mime   | ENUM('unknown','application','audio','image','text','video','message','model','multipart')             | NO   |     | unknown |       |
 | oi_minor_mime   | varbinary(100)                                                                                         | NO   |     | unknown |       |
 | oi_deleted      | tinyint(3) unsigned                                                                                    | NO   |     | 0       |       |
 | oi_sha1         | varbinary(32)                                                                                          | NO   | MUL | NULL    |       |
 +-----------------+--------------------------------------------------------------------------------------------------------+------+-----+---------+-------+
| MediaWiki versions: |  1.11 – 1.15 | 
DESCRIBE oldimage;
 +-----------------+--------------------------------------------------------------------------------------------------------+------+-----+---------+-------+
 | Field           | Type                                                                                                   | Null | Key | Default | Extra |
 +-----------------+--------------------------------------------------------------------------------------------------------+------+-----+---------+-------+
 | oi_name         | varchar(255) binary                                                                                    | NO   | MUL | NULL    |       |
 | oi_archive_name | varchar(255) binary                                                                                    | NO   |     | NULL    |       |
 | oi_size         | int(8) unsigned                                                                                        | NO   |     | 0       |       |
 | oi_width        | int(5)                                                                                                 | NO   |     | 0       |       |
 | oi_height       | int(5)                                                                                                 | NO   |     | 0       |       |
 | oi_bits         | int(3)                                                                                                 | NO   |     | 0       |       |
 | oi_description  | tinyblob                                                                                               | NO   |     | NULL    |       |
 | oi_user         | int(5) unsigned                                                                                        | NO   |     | 0       |       |
 | oi_user_text    | varchar(255) binary                                                                                    | NO   | MUL | NULL    |       |
 | oi_timestamp    | binary(14)                                                                                             | NO   |     | NULL    |       |
 | oi_metadata     | mediumblob                                                                                             | NO   |     | NULL    |       |
 | oi_media_type   | ENUM('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE') | YES  |     | NULL    |       |
 | oi_major_mime   | ENUM('unknown','application','audio','image','text','video','message','model','multipart')             | NO   |     | unknown |       |
 | oi_minor_mime   | varbinary(32)                                                                                          | NO   |     | unknown |       |
 | oi_deleted      | tinyint(3) unsigned                                                                                    | NO   |     | 0       |       |
 | oi_sha1         | varbinary(32)                                                                                          | NO   | MUL | NULL    |       |
 +-----------------+--------------------------------------------------------------------------------------------------------+------+-----+---------+-------+
| MediaWiki version: |  1.10 | 
DESCRIBE oldimage;
+-----------------+---------------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-----------------+---------------------+------+-----+---------+-------+ | oi_name | varchar(255) binary | NO | MUL | NULL | | | oi_archive_name | varchar(255) binary | NO | | NULL | | | oi_size | int(8) unsigned | NO | | 0 | | | oi_width | int(5) | NO | | 0 | | | oi_height | int(5) | NO | | 0 | | | oi_bits | int(3) | NO | | 0 | | | oi_description | tinyblob | NO | | NULL | | | oi_user | int(5) unsigned | NO | | 0 | | | oi_user_text | varchar(255) binary | NO | | NULL | | | oi_timestamp | binary(14) | NO | | NULL | | +-----------------+---------------------+------+-----+---------+-------+
| MediaWiki versions: |  1.5 – 1.9 | 
DESCRIBE oldimage;
+-----------------+---------------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-----------------+---------------------+------+-----+---------+-------+ | oi_name | varchar(255) binary | NO | MUL | NULL | | | oi_archive_name | varchar(255) binary | NO | | NULL | | | oi_size | int(8) unsigned | NO | | 0 | | | oi_width | int(5) | NO | | 0 | | | oi_height | int(5) | NO | | 0 | | | oi_bits | int(3) | NO | | 0 | | | oi_description | tinyblob | NO | | NULL | | | oi_user | int(5) unsigned | NO | | 0 | | | oi_user_text | varchar(255) binary | NO | | NULL | | | oi_timestamp | char(14) binary | NO | | NULL | | +-----------------+---------------------+------+-----+---------+-------+
| MediaWiki versions: |  1.1 – 1.4 | 
DESCRIBE oldimage;
+-----------------+---------------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-----------------+---------------------+------+-----+---------+-------+ | oi_name | varchar(255) binary | NO | MUL | NULL | | | oi_archive_name | varchar(255) binary | NO | | NULL | | | oi_size | int(8) unsigned | NO | | 0 | | | oi_description | tinyblob | NO | | NULL | | | oi_user | int(5) unsigned | NO | | 0 | | | oi_user_text | varchar(255) binary | NO | | NULL | | | oi_timestamp | char(14) binary | NO | | NULL | | +-----------------+---------------------+------+-----+---------+-------+
Indexes
| MediaWiki version: | ≥ 1.34 | 
SHOW INDEX IN oldimage;
+----------+------------+----------------------+--------------+-----------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment | +----------+------------+----------------------+--------------+-----------------+-----------+-------------+----------+--------+------+------------+---------+---------------+ | oldimage | 1 | oi_actor_timestamp | 1 | oi_actor | A | 0 | NULL | NULL | | BTREE | | | | oldimage | 1 | oi_actor_timestamp | 2 | oi_timestamp | A | 0 | NULL | NULL | | BTREE | | | | oldimage | 1 | oi_name_timestamp | 1 | oi_name | A | 0 | NULL | NULL | | BTREE | | | | oldimage | 1 | oi_name_timestamp | 2 | oi_timestamp | A | 0 | NULL | NULL | | BTREE | | | | oldimage | 1 | oi_name_archive_name | 1 | oi_name | A | 0 | NULL | NULL | | BTREE | | | | oldimage | 1 | oi_name_archive_name | 2 | oi_archive_name | A | 0 | 14 | NULL | | BTREE | | | | oldimage | 1 | oi_sha1 | 1 | oi_sha1 | A | 0 | 10 | NULL | | BTREE | | | | oldimage | 1 | oi_timestamp | 1 | oi_timestamp | A | 0 | NULL | NULL | | BTREE | | | +----------+------------+----------------------+--------------+-----------------+-----------+-------------+----------+--------+------+------------+---------+---------------+