Manual:Image table/zh

The image table describes images and other uploaded files. However, the image description pages are stored like other pages. See also: Image Administration. Many of the fields in this table are analogous to those in the table. Some of this information was adapted from  in the MediaWiki   directory.

The path for the actual image is not stored in this table: see.

img_name
使用下划线的文件名.

img_size
文件大小（以字节为单位）.

img_width
寬度，單位為像素

img_height
高度，單位為像素

img_metadata
Serialized file's properties, as PHP array serialization or as JSON. The json array can contain an address in the text table or external storage. ,  or blank if the extractor fail. T155741

img_bits
Bit-depth of GIF/PNG palette-based images (up to 8-bit). Non-palette images (JPEG/PNG/TIFF/SVG) are 0, 8, or 16. All other files default to 0.

img_media_type
Possibilities are: UNKNOWN, BITMAP, DRAWING, AUDIO, VIDEO, MULTIMEDIA, OFFICE, TEXT, EXECUTABLE, ARCHIVE, 3D

img_major_mime
Possibilities are: unknown, application, audio, chemical, image, message, model, multipart, text, video

img_minor_mime
例如： jpeg, gif, png, svg+xml, tiff, ogg, pdf	vnd.djvu, webm, wav, mpeg, x-flac, midi, x-xcf, sla, webp, etc.

img_description
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.


 * of the image_comment_temp table and the comment table should be used instead!

img_description_id
This is a foreign key to in the  table.

img_user
User ID of the user who uploaded the file.

While is being done, and depending on the configuration setting, this field may be empty and the actor performing the edit can be stored in the img_actor field instead.

img_user_text
User name of the user who uploaded the file.

While is being done, and depending on the configuration setting, this field may be empty and the actor performing the edit can be stored in the img_actor field instead.

img_actor
This is a foreign key to in the  table and specifies the actor who uploaded the most recent version of the image.

img_timestamp
Timestamp of when upload took place. Not necessarily the same timestamp as.

Except for image revisions imported from another wiki, the timestamp uniquely identifies the file revision. If two uploads of the same file happen in the same second, the latter one is delayed until it gets a different timestamp.

img_sha1
The SHA-1 hash of the file contents in base 36 format. is used to convert from base 16 (hexadecimal) to base 36 and then pad the result to 31 characters.

img_type


架构摘要
 ++-+--+-+-+---+ ++-+--+-+-+---+ ++-+--+-+-+---+
 * Field             | Type                                                                                                        | Null | Key | Default | Extra |
 * img_name          | varbinary(255)                                                                                              | NO   | PRI |         |       |
 * img_size          | int(10) unsigned                                                                                            | NO   | MUL | 0       |       |
 * img_width         | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_height        | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_metadata      | mediumblob                                                                                                  | NO   |     | NULL    |       |
 * img_bits          | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_media_type    | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE','3D') | YES  | MUL | NULL    |       |
 * img_major_mime    | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')       | NO   |     | unknown |       |
 * img_minor_mime    | varbinary(100)                                                                                              | NO   |     | unknown |       |
 * img_description_id | bigint(20) unsigned                                                                                        | NO   |     | NULL    |       |
 * img_actor         | bigint(20) unsigned                                                                                         | NO   | MUL | NULL    |       |
 * img_timestamp     | binary(14)                                                                                                  | NO   | MUL | NULL    |       |
 * img_sha1          | varbinary(32)                                                                                               | NO   | MUL |         |       |

 ++-+--+-+-+---+ ++-+--+-+-+---+ ++-+--+-+-+---+
 * Field             | Type                                                                                                        | Null | Key | Default | Extra |
 * img_name          | varbinary(255)                                                                                              | NO   | PRI |         |       |
 * img_size          | int(10) unsigned                                                                                            | NO   | MUL | 0       |       |
 * img_width         | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_height        | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_metadata      | mediumblob                                                                                                  | NO   |     | NULL    |       |
 * img_bits          | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_media_type    | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE','3D') | YES  | MUL | NULL    |       |
 * img_major_mime    | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')       | NO   |     | unknown |       |
 * img_minor_mime    | varbinary(100)                                                                                              | NO   |     | unknown |       |
 * img_description_id | bigint(20) unsigned                                                                                        | NO   |     | NULL    |       |
 * img_actor         | bigint(20) unsigned                                                                                         | NO   | MUL | NULL    |       |
 * img_timestamp     | varbinary(14)                                                                                               | NO   | MUL |         |       |
 * img_sha1          | varbinary(32)                                                                                               | NO   | MUL |         |       |

 ++-+--+-+-+---+ ++-+--+-+-+---+ ++-+--+-+-+---+
 * Field             | Type                                                                                                        | Null | Key | Default | Extra |
 * img_name          | varbinary(255)                                                                                              | NO   | PRI |         |       |
 * img_size          | int(10) unsigned                                                                                            | NO   | MUL | 0       |       |
 * img_width         | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_height        | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_metadata      | mediumblob                                                                                                  | NO   |     | NULL    |       |
 * img_bits          | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_media_type    | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE','3D') | YES  | MUL | NULL    |       |
 * img_major_mime    | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')       | NO   |     | unknown |       |
 * img_minor_mime    | varbinary(100)                                                                                              | NO   |     | unknown |       |
 * img_description_id | bigint(20) unsigned                                                                                        | NO   |     | NULL    |       |
 * img_user          | int(10) unsigned                                                                                            | NO   | MUL | 0       |       |
 * img_user_text     | varbinary(255)                                                                                              | NO   | MUL |         |       |
 * img_actor         | bigint(20) unsigned                                                                                         | NO   | MUL | 0       |       |
 * img_timestamp     | varbinary(14)                                                                                               | NO   | MUL |         |       |
 * img_sha1          | varbinary(32)                                                                                               | NO   | MUL |         |       |

 ++-+--+-+-+---+ ++-+--+-+-+---+ ++-+--+-+-+---+
 * Field             | Type                                                                                                        | Null | Key | Default | Extra |
 * img_name          | varbinary(255)                                                                                              | NO   | PRI |         |       |
 * img_size          | int(10) unsigned                                                                                            | NO   | MUL | 0       |       |
 * img_width         | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_height        | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_metadata      | mediumblob                                                                                                  | NO   |     | NULL    |       |
 * img_bits          | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_media_type    | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE','3D') | YES  | MUL | NULL    |       |
 * img_major_mime    | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')       | NO   |     | unknown |       |
 * img_minor_mime    | varbinary(100)                                                                                              | NO   |     | unknown |       |
 * img_description   | varbinary(767)                                                                                              | NO   |     |         |       |
 * img_description_id | bigint(20) unsigned                                                                                        | NO   |     | 0       |       |
 * img_user          | int(10) unsigned                                                                                            | NO   | MUL | 0       |       |
 * img_user_text     | varbinary(255)                                                                                              | NO   | MUL |         |       |
 * img_actor         | bigint(20) unsigned                                                                                         | NO   | MUL | 0       |       |
 * img_timestamp     | varbinary(14)                                                                                               | NO   | MUL |         |       |
 * img_sha1          | varbinary(32)                                                                                               | NO   | MUL |         |       |

 +-+-+--+-+-+---+ +-+-+--+-+-+---+ +-+-+--+-+-+---+
 * Field          | Type                                                                                                        | Null | Key | Default | Extra |
 * img_name       | varbinary(255)                                                                                              | NO   | PRI |         |       |
 * img_size       | int(10) unsigned                                                                                            | NO   | MUL | 0       |       |
 * img_width      | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_height     | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_metadata   | mediumblob                                                                                                  | NO   |     | NULL    |       |
 * img_bits       | int(11)                                                                                                     | NO   |     | 0       |       |
 * img_media_type | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE','3D') | YES  | MUL | NULL    |       |
 * img_major_mime | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')       | NO   |     | unknown |       |
 * img_minor_mime | varbinary(100)                                                                                              | NO   |     | unknown |       |
 * img_description | varbinary(767)                                                                                             | NO   |     |         |       |
 * img_user       | int(10) unsigned                                                                                            | NO   | MUL | 0       |       |
 * img_user_text  | varbinary(255)                                                                                              | NO   | MUL | NULL    |       |
 * img_timestamp  | varbinary(14)                                                                                               | NO   | MUL |         |       |
 * img_sha1       | varbinary(32)                                                                                               | NO   | MUL |         |       |

 +-++--+-+-+---+ +-++--+-+-+---+ +-++--+-+-+---+
 * Field          | Type                                                                                                   | Null | Key | Default | Extra |
 * img_name       | varbinary(255)                                                                                         | NO   | PRI |         |       |
 * img_size       | int(10) unsigned                                                                                       | NO   | MUL | 0       |       |
 * img_width      | int(11)                                                                                                | NO   |     | 0       |       |
 * img_height     | int(11)                                                                                                | NO   |     | 0       |       |
 * img_metadata   | mediumblob                                                                                             | NO   |     | NULL    |       |
 * img_bits       | int(11)                                                                                                | NO   |     | 0       |       |
 * img_media_type | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE') | YES  | MUL | NULL    |       |
 * img_major_mime | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')  | NO   |     | unknown |       |
 * img_minor_mime | varbinary(100)                                                                                         | NO   |     | unknown |       |
 * img_description | varbinary(767)                                                                                        | NO   |     | NULL    |       |
 * img_user       | int(10) unsigned                                                                                       | NO   | MUL | 0       |       |
 * img_user_text  | varbinary(255)                                                                                         | NO   | MUL | NULL    |       |
 * img_timestamp  | varbinary(14)                                                                                          | NO   | MUL |         |       |
 * img_sha1       | varbinary(32)                                                                                          | NO   | MUL |         |       |

 +-++--+-+-+---+ +-++--+-+-+---+ +-++--+-+-+---+
 * Field          | Type                                                                                                   | Null | Key | Default | Extra |
 * img_name       | varbinary(255)                                                                                         | NO   | PRI | NULL    |       |
 * img_size       | int(8) unsigned                                                                                        | NO   | MUL | 0       |       |
 * img_width      | int(5)                                                                                                 | NO   |     | 0       |       |
 * img_height     | int(5)                                                                                                 | NO   |     | 0       |       |
 * img_metadata   | mediumblob                                                                                             | NO   |     | NULL    |       |
 * img_bits       | int(3)                                                                                                 | NO   |     | 0       |       |
 * img_media_type | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE') | YES  |     | NULL    |       |
 * img_major_mime | enum('unknown','application','audio','image','text','video','message','model','multipart','chemical')  | NO   |     | unknown |       |
 * img_minor_mime | varbinary(100)                                                                                         | NO   |     | unknown |       |
 * img_description | tinyblob                                                                                              | NO   |     | NULL    |       |
 * img_user       | int(5) unsigned                                                                                        | NO   |     | 0       |       |
 * img_user_text  | varchar(255) binary                                                                                    | NO   |     | NULL    |       |
 * img_timestamp  | varbinary(14)                                                                                          | NO   | MUL | NULL    |       |
 * img_sha1       | varbinary(32)                                                                                          | NO   |     | NULL    |       |

 +-++--+-+-+---+ +-++--+-+-+---+ +-++--+-+-+---+
 * Field          | Type                                                                                                   | Null | Key | Default | Extra |
 * img_name       | varbinary(255)                                                                                         | NO   | PRI | NULL    |       |
 * img_size       | int(8) unsigned                                                                                        | NO   | MUL | 0       |       |
 * img_width      | int(5)                                                                                                 | NO   |     | 0       |       |
 * img_height     | int(5)                                                                                                 | NO   |     | 0       |       |
 * img_metadata   | mediumblob                                                                                             | NO   |     | NULL    |       |
 * img_bits       | int(3)                                                                                                 | NO   |     | 0       |       |
 * img_media_type | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE') | YES  |     | NULL    |       |
 * img_major_mime | enum('unknown','application','audio','image','text','video','message','model','multipart')             | NO   |     | unknown |       |
 * img_minor_mime | varbinary(100)                                                                                         | NO   |     | unknown |       |
 * img_description | tinyblob                                                                                              | NO   |     | NULL    |       |
 * img_user       | int(5) unsigned                                                                                        | NO   |     | 0       |       |
 * img_user_text  | varchar(255) binary                                                                                    | NO   |     | NULL    |       |
 * img_timestamp  | varbinary(14)                                                                                          | NO   | MUL | NULL    |       |
 * img_sha1       | varbinary(32)                                                                                          | NO   |     | NULL    |       |

 +-++--+-+-+---+ +-++--+-+-+---+ +-++--+-+-+---+
 * Field          | Type                                                                                                   | Null | Key | Default | Extra |
 * img_name       | varbinary(255)                                                                                         | NO   | PRI | NULL    |       |
 * img_size       | int(8) unsigned                                                                                        | NO   | MUL | 0       |       |
 * img_width      | int(5)                                                                                                 | NO   |     | 0       |       |
 * img_height     | int(5)                                                                                                 | NO   |     | 0       |       |
 * img_metadata   | mediumblob                                                                                             | NO   |     | NULL    |       |
 * img_bits       | int(3)                                                                                                 | NO   |     | 0       |       |
 * img_media_type | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE') | YES  |     | NULL    |       |
 * img_major_mime | enum('unknown','application','audio','image','text','video','message','model','multipart')             | NO   |     | unknown |       |
 * img_minor_mime | varbinary(32)                                                                                          | NO   |     | unknown |       |
 * img_description | tinyblob                                                                                              | NO   |     | NULL    |       |
 * img_user       | int(5) unsigned                                                                                        | NO   |     | 0       |       |
 * img_user_text  | varchar(255) binary                                                                                    | NO   |     | NULL    |       |
 * img_timestamp  | varbinary(14)                                                                                          | NO   | MUL | NULL    |       |
 * img_sha1       | varbinary(32)                                                                                          | NO   |     | NULL    |       |

 +-++--+-+-+---+ +-++--+-+-+---+ +-++--+-+-+---+
 * Field          | Type                                                                                                   | Null | Key | Default | Extra |
 * img_name       | varbinary(255)                                                                                         | NO   | PRI | NULL    |       |
 * img_size       | int(8) unsigned                                                                                        | NO   | MUL | 0       |       |
 * img_width      | int(5)                                                                                                 | NO   |     | 0       |       |
 * img_height     | int(5)                                                                                                 | NO   |     | 0       |       |
 * img_metadata   | mediumblob                                                                                             | NO   |     | NULL    |       |
 * img_bits       | int(3)                                                                                                 | NO   |     | 0       |       |
 * img_media_type | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE') | YES  |     | NULL    |       |
 * img_major_mime | enum('unknown','application','audio','image','text','video','message','model','multipart')             | NO   |     | unknown |       |
 * img_minor_mime | varbinary(32)                                                                                          | NO   |     | unknown |       |
 * img_description | tinyblob                                                                                              | NO   |     | NULL    |       |
 * img_user       | int(5) unsigned                                                                                        | NO   |     | 0       |       |
 * img_user_text  | varchar(255) binary                                                                                    | NO   |     | NULL    |       |
 * img_timestamp  | varbinary(14)                                                                                          | NO   | MUL | NULL    |       |

 +-++--+-+-+---+ +-++--+-+-+---+ +-++--+-+-+---+
 * Field          | Type                                                                                                   | Null | Key | Default | Extra |
 * img_name       | varchar(255) binary                                                                                    | NO   | PRI | NULL    |       |
 * img_size       | int(8) unsigned                                                                                        | NO   | MUL | 0       |       |
 * img_width      | int(5)                                                                                                 | NO   |     | 0       |       |
 * img_height     | int(5)                                                                                                 | NO   |     | 0       |       |
 * img_metadata   | mediumblob                                                                                             | NO   |     | NULL    |       |
 * img_bits       | int(3)                                                                                                 | NO   |     | 0       |       |
 * img_media_type | enum('UNKNOWN','BITMAP','DRAWING','AUDIO','VIDEO','MULTIMEDIA','OFFICE','TEXT','EXECUTABLE','ARCHIVE') | YES  |     | NULL    |       |
 * img_major_mime | enum('unknown','application','audio','image','text','video','message','model','multipart')             | NO   |     | unknown |       |
 * img_minor_mime | varchar(32) binary                                                                                     | NO   |     | unknown |       |
 * img_description | tinyblob                                                                                              | NO   |     | NULL    |       |
 * img_user       | int(5) unsigned                                                                                        | NO   |     | 0       |       |
 * img_user_text  | varchar(255) binary                                                                                    | NO   |     | NULL    |       |
 * img_timestamp  | char(14) binary                                                                                        | NO   | MUL | NULL    |       |

 +-+-+--+-+-+---+ +-+-+--+-+-+---+ +-+-+--+-+-+---+
 * Field          | Type                | Null | Key | Default | Extra |
 * img_name       | varchar(255) binary | NO   | MUL | NULL    |       |
 * img_size       | int(8) unsigned     | NO   | MUL | 0       |       |
 * img_description | tinyblob           | NO   |     | NULL    |       |
 * img_user       | int(5) unsigned     | NO   |     | 0       |       |
 * img_user_text  | varchar(255) binary | NO   |     | NULL    |       |
 * img_timestamp  | char(14) binary     | NO   | MUL | NULL    |       |

索引
 +---++-+--++---+-+--++--++-+---+ +---++-+--++---+-+--++--++-+---+ +---++-+--++---+-+--++--++-+---+
 * Table | Non_unique | Key_name           | Seq_in_index | Column_name    | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
 * image |         0 | PRIMARY             |            1 | img_name       | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
 * image |         1 | img_actor_timestamp |            1 | img_actor      | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
 * image |         1 | img_actor_timestamp |            2 | img_timestamp  | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
 * image |         1 | img_size            |            1 | img_size       | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
 * image |         1 | img_timestamp       |            1 | img_timestamp  | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
 * image |         1 | img_sha1            |            1 | img_sha1       | A         |           0 |       10 | NULL   |      | BTREE      |         |               |
 * image |         1 | img_media_mime      |            1 | img_media_type | A         |           0 |     NULL | NULL   | YES  | BTREE      |         |               |
 * image |         1 | img_media_mime      |            2 | img_major_mime | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
 * image |         1 | img_media_mime      |            3 | img_minor_mime | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |