1 -- Experimental table definitions for MySQL 4.1 and 5.0 with
2 -- explicit character set support. Not fully tested, may have
5 -- TODO: Test various fields
6 -- TODO: Anything else need to be moved to VARBINARY and BLOB?
7 -- TODO: UCS-2 better than UTF-8?
8 -- TODO: Find out how to get 4-byte UTF-8 chars into MySQL...
9 -- An alternate UCS-2 that does UTF-16 conversion would work.
10 -- TODO: Work on collation usage
12 -- ------------------------------------------------------------
14 -- SQL to create the initial tables for the MediaWiki database.
15 -- This is read and executed by the install script; you should
16 -- not have to run it by itself unless doing a manual install.
21 -- If possible, create tables as InnoDB to benefit from the
22 -- superior resiliency against crashes and ability to read
23 -- during writes (and write during reads!)
25 -- Only the 'searchindex' table requires MyISAM due to the
26 -- requirement for fulltext index support, which is missing
30 -- The MySQL table backend for MediaWiki currently uses
31 -- 14-character CHAR or VARCHAR fields to store timestamps.
32 -- The format is YYYYMMDDHHMMSS, which is derived from the
33 -- text format of MySQL's TIMESTAMP fields.
35 -- Historically TIMESTAMP fields were used, but abandoned
36 -- in early 2002 after a lot of trouble with the fields
39 -- The Postgres backend uses DATETIME fields for timestamps,
40 -- and we will migrate the MySQL definitions at some point as
44 -- The /*$wgDBprefix*/ comments in this and other files are
45 -- replaced with the defined table prefix by the installer
46 -- and updater scripts. If you are installing or running
47 -- updates manually, you will need to manually insert the
48 -- table prefix if any when running these scripts.
53 -- The user table contains basic account information,
54 -- authentication keys, etc.
56 -- Some multi-wiki sites may share a single central user table
57 -- between separate wikis using the $wgSharedDB setting.
59 -- Note that when a external authentication plugin is used,
60 -- user table entries still need to be created to store
61 -- preferences and to key tracking information in the other
64 CREATE TABLE /*$wgDBprefix*/user (
65 user_id
int(5) unsigned
NOT NULL auto_increment
,
67 -- Usernames must be unique, must not be in the form of
68 -- an IP address. _Shouldn't_ allow slashes or case
69 -- conflicts. Spaces are allowed, and are _not_ converted
70 -- to underscores like titles. See the User::newFromName() for
71 -- the specific tests that usernames have to pass.
72 user_name
varchar(255) binary NOT NULL default '',
74 -- Optional 'real name' to be displayed in credit listings
75 user_real_name
varchar(255) binary NOT NULL default '',
77 -- Password hashes, normally hashed like so:
78 -- MD5(CONCAT(user_id,'-',MD5(plaintext_password))), see
79 -- wfEncryptPassword() in GlobalFunctions.php
80 user_password tinyblob
NOT NULL,
82 -- When using 'mail me a new password', a random
83 -- password is generated and the hash stored here.
84 -- The previous password is left in place until
85 -- someone actually logs in with the new password,
86 -- at which point the hash is moved to user_password
87 -- and the old password is invalidated.
88 user_newpassword tinyblob
NOT NULL,
90 -- Timestamp of the last time when a new password was
91 -- sent, for throttling purposes
92 user_newpass_time
char(14) binary,
94 -- Note: email should be restricted, not public info.
95 -- Same with passwords.
96 user_email tinytext
NOT NULL,
98 -- Newline-separated list of name=value defining the user
100 user_options
blob NOT NULL,
102 -- This is a timestamp which is updated when a user
103 -- logs in, logs out, changes preferences, or performs
104 -- some other action requiring HTML cache invalidation
105 -- to ensure that the UI is updated.
106 user_touched
char(14) binary NOT NULL default '',
108 -- A pseudorandomly generated value that is stored in
109 -- a cookie when the "remember password" feature is
110 -- used (previously, a hash of the password was used, but
111 -- this was vulnerable to cookie-stealing attacks)
112 user_token
char(32) binary NOT NULL default '',
114 -- Initially NULL; when a user's e-mail address has been
115 -- validated by returning with a mailed token, this is
116 -- set to the current timestamp.
117 user_email_authenticated
char(14) binary,
119 -- Randomly generated token created when the e-mail address
120 -- is set and a confirmation test mail sent.
121 user_email_token
char(32) binary,
123 -- Expiration date for the user_email_token
124 user_email_token_expires
char(14) binary,
126 -- Timestamp of account registration.
127 -- Accounts predating this schema addition may contain NULL.
128 user_registration
char(14) binary,
130 -- Count of edits and edit-like actions.
132 -- *NOT* intended to be an accurate copy of COUNT(*) WHERE rev_user=user_id
133 -- May contain NULL for old accounts if batch-update scripts haven't been
134 -- run, as well as listing deleted edits and other myriad ways it could be
137 -- Meant primarily for heuristic checks to give an impression of whether
138 -- the account has been used much.
142 PRIMARY KEY user_id (user_id
),
143 UNIQUE INDEX user_name (user_name
),
144 INDEX (user_email_token
)
146 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
149 -- User permissions have been broken out to a separate table;
150 -- this allows sites with a shared user table to have different
151 -- permissions assigned to a user in each project.
153 -- This table replaces the old user_rights field which used a
154 -- comma-separated blob.
156 CREATE TABLE /*$wgDBprefix*/user_groups (
158 ug_user
int(5) unsigned
NOT NULL default '0',
160 -- Group names are short symbolic string keys.
161 -- The set of group names is open-ended, though in practice
162 -- only some predefined ones are likely to be used.
164 -- At runtime $wgGroupPermissions will associate group keys
165 -- with particular permissions. A user will have the combined
166 -- permissions of any group they're explicitly in, plus
167 -- the implicit '*' and 'user' groups.
168 ug_group
char(16) NOT NULL default '',
170 PRIMARY KEY (ug_user
,ug_group
),
172 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
174 -- Stores notifications of user talk page changes, for the display
175 -- of the "you have new messages" box
176 CREATE TABLE /*$wgDBprefix*/user_newtalk (
177 -- Key to user.user_id
178 user_id
int(5) NOT NULL default '0',
179 -- If the user is an anonymous user hir IP address is stored here
180 -- since the user_id of 0 is ambiguous
181 user_ip
varchar(40) NOT NULL default '',
182 INDEX user_id (user_id
),
183 INDEX user_ip (user_ip
)
185 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
189 -- Core of the wiki: each page has an entry here which identifies
190 -- it by title and contains some essential metadata.
192 CREATE TABLE /*$wgDBprefix*/page (
193 -- Unique identifier number. The page_id will be preserved across
194 -- edits and rename operations, but not deletions and recreations.
195 page_id
int(8) unsigned
NOT NULL auto_increment
,
197 -- A page name is broken into a namespace and a title.
198 -- The namespace keys are UI-language-independent constants,
199 -- defined in includes/Defines.php
200 page_namespace
int NOT NULL,
202 -- The rest of the title, as text.
203 -- Spaces are transformed into underscores in title storage.
204 page_title
varchar(255) binary NOT NULL,
206 -- Comma-separated set of permission keys indicating who
207 -- can move or edit the page.
208 page_restrictions tinyblob
NOT NULL,
210 -- Number of times this page has been viewed.
211 page_counter
bigint(20) unsigned
NOT NULL default '0',
213 -- 1 indicates the article is a redirect.
214 page_is_redirect
tinyint(1) unsigned
NOT NULL default '0',
216 -- 1 indicates this is a new entry, with only one edit.
217 -- Not all pages with one edit are new pages.
218 page_is_new
tinyint(1) unsigned
NOT NULL default '0',
220 -- Random value between 0 and 1, used for Special:Randompage
221 page_random
real unsigned
NOT NULL,
223 -- This timestamp is updated whenever the page changes in
224 -- a way requiring it to be re-rendered, invalidating caches.
225 -- Aside from editing this includes permission changes,
226 -- creation or deletion of linked pages, and alteration
227 -- of contained templates.
228 page_touched
char(14) binary NOT NULL default '',
230 -- Handy key to revision.rev_id of the current revision.
231 -- This may be 0 during page creation, but that shouldn't
232 -- happen outside of a transaction... hopefully.
233 page_latest
int(8) unsigned
NOT NULL,
235 -- Uncompressed length in bytes of the page's current source text.
236 page_len
int(8) unsigned
NOT NULL,
238 PRIMARY KEY page_id (page_id
),
239 UNIQUE INDEX name_title (page_namespace
,page_title
),
241 -- Special-purpose indexes
245 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
248 -- Every edit of a page creates also a revision row.
249 -- This stores metadata about the revision, and a reference
250 -- to the text storage backend.
252 CREATE TABLE /*$wgDBprefix*/revision (
253 rev_id
int(8) unsigned
NOT NULL auto_increment
,
255 -- Key to page_id. This should _never_ be invalid.
256 rev_page
int(8) unsigned
NOT NULL,
258 -- Key to text.old_id, where the actual bulk text is stored.
259 -- It's possible for multiple revisions to use the same text,
260 -- for instance revisions where only metadata is altered
261 -- or a rollback to a previous version.
262 rev_text_id
int(8) unsigned
NOT NULL,
264 -- Text comment summarizing the change.
265 -- This text is shown in the history and other changes lists,
266 -- rendered in a subset of wiki markup by Linker::formatComment()
267 rev_comment tinyblob
NOT NULL,
269 -- Key to user.user_id of the user who made this edit.
270 -- Stores 0 for anonymous edits and for some mass imports.
271 rev_user
int(5) unsigned
NOT NULL default '0',
273 -- Text username or IP address of the editor.
274 rev_user_text
varchar(255) binary NOT NULL default '',
277 rev_timestamp
char(14) binary NOT NULL default '',
279 -- Records whether the user marked the 'minor edit' checkbox.
280 -- Many automated edits are marked as minor.
281 rev_minor_edit
tinyint(1) unsigned
NOT NULL default '0',
283 -- Not yet used; reserved for future changes to the deletion system.
284 rev_deleted
tinyint(1) unsigned
NOT NULL default '0',
286 -- Length of this revision in bytes
287 rev_len
int(8) unsigned
,
289 --Key to revision.rev_id
290 --This field is used to add support for a tree structure (The Adjacency List Model)
291 rev_parent_id
int(8) unsigned
default NULL,
293 PRIMARY KEY rev_page_id (rev_page
, rev_id
),
294 UNIQUE INDEX rev_id (rev_id
),
295 INDEX rev_timestamp (rev_timestamp
),
296 INDEX page_timestamp (rev_page
,rev_timestamp
),
297 INDEX user_timestamp (rev_user
,rev_timestamp
),
298 INDEX usertext_timestamp (rev_user_text
,rev_timestamp
)
300 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
304 -- Holds text of individual page revisions.
306 -- Field names are a holdover from the 'old' revisions table in
307 -- MediaWiki 1.4 and earlier: an upgrade will transform that
308 -- table into the 'text' table to minimize unnecessary churning
309 -- and downtime. If upgrading, the other fields will be left unused.
311 CREATE TABLE /*$wgDBprefix*/text (
312 -- Unique text storage key number.
313 -- Note that the 'oldid' parameter used in URLs does *not*
314 -- refer to this number anymore, but to rev_id.
316 -- revision.rev_text_id is a key to this column
317 old_id
int(8) unsigned
NOT NULL auto_increment
,
319 -- Depending on the contents of the old_flags field, the text
320 -- may be convenient plain text, or it may be funkily encoded.
321 old_text mediumblob
NOT NULL,
323 -- Comma-separated list of flags:
324 -- gzip: text is compressed with PHP's gzdeflate() function.
325 -- utf8: text was stored as UTF-8.
326 -- If $wgLegacyEncoding option is on, rows *without* this flag
327 -- will be converted to UTF-8 transparently at load time.
328 -- object: text field contained a serialized PHP object.
329 -- The object either contains multiple versions compressed
330 -- together to achieve a better compression ratio, or it refers
331 -- to another row where the text can be found.
332 old_flags tinyblob
NOT NULL,
334 PRIMARY KEY old_id (old_id
)
336 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
339 -- Holding area for deleted articles, which may be viewed
340 -- or restored by admins through the Special:Undelete interface.
341 -- The fields generally correspond to the page, revision, and text
342 -- fields, with several caveats.
344 CREATE TABLE /*$wgDBprefix*/archive (
345 ar_namespace
int NOT NULL default '0',
346 ar_title
varchar(255) binary NOT NULL default '',
348 -- Newly deleted pages will not store text in this table,
349 -- but will reference the separately existing text rows.
350 -- This field is retained for backwards compatibility,
351 -- so old archived pages will remain accessible after
352 -- upgrading from 1.4 to 1.5.
353 -- Text may be gzipped or otherwise funky.
354 ar_text mediumblob
NOT NULL,
356 -- Basic revision stuff...
357 ar_comment tinyblob
NOT NULL,
358 ar_user
int(5) unsigned
NOT NULL default '0',
359 ar_user_text
varchar(255) binary NOT NULL,
360 ar_timestamp
char(14) binary NOT NULL default '',
361 ar_minor_edit
tinyint(1) NOT NULL default '0',
364 ar_flags tinyblob
NOT NULL,
366 -- When revisions are deleted, their unique rev_id is stored
367 -- here so it can be retained after undeletion. This is necessary
368 -- to retain permalinks to given revisions after accidental delete
369 -- cycles or messy operations like history merges.
371 -- Old entries from 1.4 will be NULL here, and a new rev_id will
372 -- be created on undeletion for those revisions.
373 ar_rev_id
int(8) unsigned
,
375 -- For newly deleted revisions, this is the text.old_id key to the
376 -- actual stored text. To avoid breaking the block-compression scheme
377 -- and otherwise making storage changes harder, the actual text is
378 -- *not* deleted from the text table, merely hidden by removal of the
379 -- page and revision entries.
381 -- Old entries deleted under 1.2-1.4 will have NULL here, and their
382 -- ar_text and ar_flags fields will be used to create a new text
383 -- row upon undeletion.
384 ar_text_id
int(8) unsigned
,
386 KEY name_title_timestamp (ar_namespace
,ar_title
,ar_timestamp
)
388 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
392 -- Track page-to-page hyperlinks within the wiki.
394 CREATE TABLE /*$wgDBprefix*/pagelinks (
395 -- Key to the page_id of the page containing the link.
396 pl_from
int(8) unsigned
NOT NULL default '0',
398 -- Key to page_namespace/page_title of the target page.
399 -- The target page may or may not exist, and due to renames
400 -- and deletions may refer to different page records as time
402 pl_namespace
int NOT NULL default '0',
403 pl_title
varchar(255) binary NOT NULL default '',
405 UNIQUE KEY pl_from (pl_from
,pl_namespace
,pl_title
),
406 KEY (pl_namespace
,pl_title
,pl_from
)
408 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
412 -- Track template inclusions.
414 CREATE TABLE /*$wgDBprefix*/templatelinks (
415 -- Key to the page_id of the page containing the link.
416 tl_from
int(8) unsigned
NOT NULL default '0',
418 -- Key to page_namespace/page_title of the target page.
419 -- The target page may or may not exist, and due to renames
420 -- and deletions may refer to different page records as time
422 tl_namespace
int NOT NULL default '0',
423 tl_title
varchar(255) binary NOT NULL default '',
425 UNIQUE KEY tl_from (tl_from
,tl_namespace
,tl_title
),
426 KEY (tl_namespace
,tl_title
,tl_from
)
428 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
431 -- Track links to images *used inline*
432 -- We don't distinguish live from broken links here, so
433 -- they do not need to be changed on upload/removal.
435 CREATE TABLE /*$wgDBprefix*/imagelinks (
436 -- Key to page_id of the page containing the image / media link.
437 il_from
int(8) unsigned
NOT NULL default '0',
439 -- Filename of target image.
440 -- This is also the page_title of the file's description page;
441 -- all such pages are in namespace 6 (NS_IMAGE).
442 il_to
varchar(255) binary NOT NULL default '',
444 UNIQUE KEY il_from (il_from
,il_to
),
447 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
450 -- Track category inclusions *used inline*
451 -- This tracks a single level of category membership
452 -- (folksonomic tagging, really).
454 CREATE TABLE /*$wgDBprefix*/categorylinks (
455 -- Key to page_id of the page defined as a category member.
456 cl_from
int(8) unsigned
NOT NULL default '0',
458 -- Name of the category.
459 -- This is also the page_title of the category's description page;
460 -- all such pages are in namespace 14 (NS_CATEGORY).
461 cl_to
varchar(255) binary NOT NULL default '',
463 -- The title of the linking page, or an optional override
464 -- to determine sort order. Sorting is by binary order, which
465 -- isn't always ideal, but collations seem to be an exciting
466 -- and dangerous new world in MySQL... The sortkey is updated
467 -- if no override exists and cl_from is renamed.
469 -- For MySQL 4.1+ with charset set to utf8, the sort key *index*
470 -- needs cut to be smaller than 1024 bytes (at 3 bytes per char).
471 -- To sort properly on the shorter key, this field needs to be
472 -- the same shortness.
473 cl_sortkey
varchar(86) binary NOT NULL default '',
475 -- This isn't really used at present. Provided for an optional
476 -- sorting method by approximate addition time.
477 cl_timestamp
timestamp NOT NULL,
479 UNIQUE KEY cl_from (cl_from
,cl_to
),
481 -- We always sort within a given category...
482 KEY cl_sortkey (cl_to
,cl_sortkey
),
485 KEY cl_timestamp (cl_to
,cl_timestamp
)
487 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
490 -- Track links to external URLs
492 CREATE TABLE /*$wgDBprefix*/externallinks (
493 -- page_id of the referring page
494 el_from
int(8) unsigned
NOT NULL default '0',
499 -- In the case of HTTP URLs, this is the URL with any username or password
500 -- removed, and with the labels in the hostname reversed and converted to
501 -- lower case. An extra dot is added to allow for matching of either
502 -- example.com or *.example.com in a single scan.
504 -- http://user:password@sub.example.com/page.html
506 -- http://com.example.sub./page.html
507 -- which allows for fast searching for all pages under example.com with the
509 -- WHERE el_index LIKE 'http://com.example.%'
510 el_index
blob NOT NULL,
512 KEY (el_from
, el_to(40)),
513 KEY (el_to(60), el_from
),
515 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
518 -- Track interlanguage links
520 CREATE TABLE /*$wgDBprefix*/langlinks (
521 -- page_id of the referring page
522 ll_from
int(8) unsigned
NOT NULL default '0',
524 -- Language code of the target
525 ll_lang
varchar(10) binary NOT NULL default '',
527 -- Title of the target, including namespace
528 ll_title
varchar(255) binary NOT NULL default '',
530 UNIQUE KEY (ll_from
, ll_lang
),
531 KEY (ll_lang
, ll_title
)
532 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
535 -- Contains a single row with some aggregate info
536 -- on the state of the site.
538 CREATE TABLE /*$wgDBprefix*/site_stats (
539 -- The single row should contain 1 here.
540 ss_row_id
int(8) unsigned
NOT NULL,
542 -- Total number of page views, if hit counters are enabled.
543 ss_total_views
bigint(20) unsigned
default '0',
545 -- Total number of edits performed.
546 ss_total_edits
bigint(20) unsigned
default '0',
548 -- An approximate count of pages matching the following criteria:
551 -- * contains the text '[['
552 -- See Article::isCountable() in includes/Article.php
553 ss_good_articles
bigint(20) unsigned
default '0',
555 -- Total pages, theoretically equal to SELECT COUNT(*) FROM page; except faster
556 ss_total_pages
bigint(20) default '-1',
558 -- Number of users, theoretically equal to SELECT COUNT(*) FROM user;
559 ss_users
bigint(20) default '-1',
561 -- Deprecated, no longer updated as of 1.5
562 ss_admins
int(10) default '-1',
564 -- Number of images, equivalent to SELECT COUNT(*) FROM image
565 ss_images
int(10) default '0',
567 UNIQUE KEY ss_row_id (ss_row_id
)
572 -- Stores an ID for every time any article is visited;
573 -- depending on $wgHitcounterUpdateFreq, it is
574 -- periodically cleared and the page_counter column
575 -- in the page table updated for the all articles
576 -- that have been visited.)
578 CREATE TABLE /*$wgDBprefix*/hitcounter (
579 hc_id
int unsigned
NOT NULL
580 ) ENGINE
=HEAP MAX_ROWS
=25000;
584 -- The internet is full of jerks, alas. Sometimes it's handy
585 -- to block a vandal or troll account.
587 CREATE TABLE /*$wgDBprefix*/ipblocks (
588 -- Primary key, introduced for privacy.
589 ipb_id
int(8) NOT NULL auto_increment
,
591 -- Blocked IP address in dotted-quad form or user name.
592 ipb_address tinyblob
NOT NULL,
594 -- Blocked user ID or 0 for IP blocks.
595 ipb_user
int(8) unsigned
NOT NULL default '0',
597 -- User ID who made the block.
598 ipb_by
int(8) unsigned
NOT NULL default '0',
600 -- Text comment made by blocker.
601 ipb_reason tinyblob
NOT NULL,
603 -- Creation (or refresh) date in standard YMDHMS form.
604 -- IP blocks expire automatically.
605 ipb_timestamp
char(14) binary NOT NULL default '',
607 -- Indicates that the IP address was banned because a banned
608 -- user accessed a page through it. If this is 1, ipb_address
609 -- will be hidden, and the block identified by block ID number.
610 ipb_auto bool
NOT NULL default 0,
612 -- If set to 1, block applies only to logged-out users
613 ipb_anon_only bool
NOT NULL default 0,
615 -- Block prevents account creation from matching IP addresses
616 ipb_create_account bool
NOT NULL default 1,
618 -- Block triggers autoblocks
619 ipb_enable_autoblock bool
NOT NULL default '1',
621 -- Time at which the block will expire.
622 ipb_expiry
char(14) binary NOT NULL default '',
624 -- Start and end of an address range, in hexadecimal
625 -- Size chosen to allow IPv6
626 ipb_range_start tinyblob
NOT NULL,
627 ipb_range_end tinyblob
NOT NULL,
629 PRIMARY KEY ipb_id (ipb_id
),
631 -- Unique index to support "user already blocked" messages
632 -- Any new options which prevent collisions should be included
633 UNIQUE INDEX ipb_address (ipb_address(255), ipb_user
, ipb_auto
, ipb_anon_only
),
635 INDEX ipb_user (ipb_user
),
636 INDEX ipb_range (ipb_range_start(8), ipb_range_end(8)),
637 INDEX ipb_timestamp (ipb_timestamp
),
638 INDEX ipb_expiry (ipb_expiry
)
640 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
644 -- Uploaded images and other files.
646 CREATE TABLE /*$wgDBprefix*/image (
648 -- This is also the title of the associated description page,
649 -- which will be in namespace 6 (NS_IMAGE).
650 img_name
varchar(255) binary NOT NULL default '',
652 -- File size in bytes.
653 img_size
int(8) unsigned
NOT NULL default '0',
655 -- For images, size in pixels.
656 img_width
int(5) NOT NULL default '0',
657 img_height
int(5) NOT NULL default '0',
659 -- Extracted EXIF metadata stored as a serialized PHP array.
660 img_metadata mediumblob
NOT NULL,
662 -- For images, bits per pixel if known.
663 img_bits
int(3) NOT NULL default '0',
665 -- Media type as defined by the MEDIATYPE_xxx constants
666 img_media_type
ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,
668 -- major part of a MIME media type as defined by IANA
669 -- see http://www.iana.org/assignments/media-types/
670 img_major_mime
ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") NOT NULL default "unknown",
672 -- minor part of a MIME media type as defined by IANA
673 -- the minor parts are not required to adher to any standard
674 -- but should be consistent throughout the database
675 -- see http://www.iana.org/assignments/media-types/
676 img_minor_mime
varchar(32) NOT NULL default "unknown",
678 -- Description field as entered by the uploader.
679 -- This is displayed in image upload history and logs.
680 img_description tinyblob
NOT NULL,
682 -- user_id and user_name of uploader.
683 img_user
int(5) unsigned
NOT NULL default '0',
684 img_user_text
varchar(255) binary NOT NULL,
686 -- Time of the upload.
687 img_timestamp
char(14) binary NOT NULL default '',
689 PRIMARY KEY img_name (img_name
),
691 -- Used by Special:Imagelist for sort-by-size
692 INDEX img_size (img_size
),
694 -- Used by Special:Newimages and Special:Imagelist
695 INDEX img_timestamp (img_timestamp
)
697 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
700 -- Previous revisions of uploaded files.
701 -- Awkwardly, image rows have to be moved into
702 -- this table at re-upload time.
704 CREATE TABLE /*$wgDBprefix*/oldimage (
705 -- Base filename: key to image.img_name
706 oi_name
varchar(255) binary NOT NULL default '',
708 -- Filename of the archived file.
709 -- This is generally a timestamp and '!' prepended to the base name.
710 oi_archive_name
varchar(255) binary NOT NULL default '',
712 -- Other fields as in image...
713 oi_size
int(8) unsigned
NOT NULL default 0,
714 oi_width
int(5) NOT NULL default 0,
715 oi_height
int(5) NOT NULL default 0,
716 oi_bits
int(3) NOT NULL default 0,
717 oi_description tinyblob
NOT NULL,
718 oi_user
int(5) unsigned
NOT NULL default '0',
719 oi_user_text
varchar(255) binary NOT NULL,
720 oi_timestamp
char(14) binary NOT NULL default '',
722 INDEX oi_name (oi_name(10))
724 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
727 -- Record of deleted file data
729 CREATE TABLE /*$wgDBprefix*/filearchive (
731 fa_id
int NOT NULL auto_increment
,
733 -- Original base filename; key to image.img_name, page.page_title, etc
734 fa_name
varchar(255) binary NOT NULL default '',
736 -- Filename of archived file, if an old revision
737 fa_archive_name
varchar(255) binary default '',
739 -- Which storage bin (directory tree or object store) the file data
740 -- is stored in. Should be 'deleted' for files that have been deleted;
741 -- any other bin is not yet in use.
742 fa_storage_group
varchar(16),
744 -- SHA-1 of the file contents plus extension, used as a key for storage.
745 -- eg 8f8a562add37052a1848ff7771a2c515db94baa9.jpg
747 -- If NULL, the file was missing at deletion time or has been purged
748 -- from the archival storage.
749 fa_storage_key
varchar(64) binary default '',
751 -- Deletion information, if this file is deleted.
753 fa_deleted_timestamp
char(14) binary default '',
754 fa_deleted_reason
text,
756 -- Duped fields from image
757 fa_size
int(8) unsigned
default '0',
758 fa_width
int(5) default '0',
759 fa_height
int(5) default '0',
760 fa_metadata mediumblob
,
761 fa_bits
int(3) default '0',
762 fa_media_type
ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,
763 fa_major_mime
ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") default "unknown",
764 fa_minor_mime
varchar(32) default "unknown",
765 fa_description tinyblob
,
766 fa_user
int(5) unsigned
default '0',
767 fa_user_text
varchar(255) binary,
768 fa_timestamp
char(14) binary default '',
771 INDEX (fa_name
, fa_timestamp
), -- pick out by image name
772 INDEX (fa_storage_group
, fa_storage_key
), -- pick out dupe files
773 INDEX (fa_deleted_timestamp
), -- sort by deletion time
774 INDEX (fa_deleted_user
) -- sort by deleter
776 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
779 -- Primarily a summary table for Special:Recentchanges,
780 -- this table contains some additional info on edits from
781 -- the last few days, see Article::editUpdates()
783 CREATE TABLE /*$wgDBprefix*/recentchanges (
784 rc_id
int(8) NOT NULL auto_increment
,
785 rc_timestamp
varchar(14) binary NOT NULL default '',
786 rc_cur_time
varchar(14) binary NOT NULL default '',
789 rc_user
int(10) unsigned
NOT NULL default '0',
790 rc_user_text
varchar(255) binary NOT NULL,
792 -- When pages are renamed, their RC entries do _not_ change.
793 rc_namespace
int NOT NULL default '0',
794 rc_title
varchar(255) binary NOT NULL default '',
797 rc_comment
varchar(255) binary NOT NULL default '',
798 rc_minor
tinyint(3) unsigned
NOT NULL default '0',
800 -- Edits by user accounts with the 'bot' rights key are
801 -- marked with a 1 here, and will be hidden from the
803 rc_bot
tinyint(3) unsigned
NOT NULL default '0',
805 rc_new
tinyint(3) unsigned
NOT NULL default '0',
807 -- Key to page_id (was cur_id prior to 1.5).
808 -- This will keep links working after moves while
809 -- retaining the at-the-time name in the changes list.
810 rc_cur_id
int(10) unsigned
NOT NULL default '0',
812 -- rev_id of the given revision
813 rc_this_oldid
int(10) unsigned
NOT NULL default '0',
815 -- rev_id of the prior revision, for generating diff links.
816 rc_last_oldid
int(10) unsigned
NOT NULL default '0',
818 -- These may no longer be used, with the new move log.
819 rc_type
tinyint(3) unsigned
NOT NULL default '0',
820 rc_moved_to_ns
tinyint(3) unsigned
NOT NULL default '0',
821 rc_moved_to_title
varchar(255) binary NOT NULL default '',
823 -- If the Recent Changes Patrol option is enabled,
824 -- users may mark edits as having been reviewed to
825 -- remove a warning flag on the RC list.
826 -- A value of 1 indicates the page has been reviewed.
827 rc_patrolled
tinyint(3) unsigned
NOT NULL default '0',
829 -- Recorded IP address the edit was made from, if the
830 -- $wgPutIPinRC option is enabled.
831 rc_ip
char(15) NOT NULL default '',
833 -- Text length in characters before
834 -- and after the edit
838 PRIMARY KEY rc_id (rc_id
),
839 INDEX rc_timestamp (rc_timestamp
),
840 INDEX rc_namespace_title (rc_namespace
, rc_title
),
841 INDEX rc_cur_id (rc_cur_id
),
842 INDEX new_name_timestamp (rc_new
,rc_namespace
,rc_timestamp
),
844 INDEX rc_ns_usertext (rc_namespace
, rc_user_text
),
845 INDEX rc_user_text (rc_user_text
, rc_timestamp
)
847 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
849 CREATE TABLE /*$wgDBprefix*/watchlist (
850 -- Key to user.user_id
851 wl_user
int(5) unsigned
NOT NULL,
853 -- Key to page_namespace/page_title
854 -- Note that users may watch pages which do not exist yet,
855 -- or existed in the past but have been deleted.
856 wl_namespace
int NOT NULL default '0',
857 wl_title
varchar(255) binary NOT NULL default '',
859 -- Timestamp when user was last sent a notification e-mail;
860 -- cleared when the user visits the page.
861 wl_notificationtimestamp
varchar(14) binary,
863 UNIQUE KEY (wl_user
, wl_namespace
, wl_title
),
864 KEY namespace_title (wl_namespace
, wl_title
)
866 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
870 -- Used by the math module to keep track
871 -- of previously-rendered items.
873 CREATE TABLE /*$wgDBprefix*/math (
874 -- Binary MD5 hash of the latex fragment, used as an identifier key.
875 math_inputhash
varbinary(16) NOT NULL,
877 -- Not sure what this is, exactly...
878 math_outputhash
varbinary(16) NOT NULL,
880 -- texvc reports how well it thinks the HTML conversion worked;
881 -- if it's a low level the PNG rendering may be preferred.
882 math_html_conservativeness
tinyint(1) NOT NULL,
884 -- HTML output from texvc, if any
887 -- MathML output from texvc, if any
890 UNIQUE KEY math_inputhash (math_inputhash
)
892 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
895 -- When using the default MySQL search backend, page titles
896 -- and text are munged to strip markup, do Unicode case folding,
897 -- and prepare the result for MySQL's fulltext index.
899 -- This table must be MyISAM; InnoDB does not support the needed
902 CREATE TABLE /*$wgDBprefix*/searchindex (
904 si_page
int(8) unsigned
NOT NULL,
906 -- Munged version of title
907 si_title
varchar(255) NOT NULL default '',
909 -- Munged version of body text
910 si_text mediumtext
NOT NULL,
912 UNIQUE KEY (si_page
),
913 FULLTEXT
si_title (si_title
),
914 FULLTEXT
si_text (si_text
)
916 ) ENGINE
=MyISAM
, DEFAULT CHARSET
=utf8
;
919 -- Recognized interwiki link prefixes
921 CREATE TABLE /*$wgDBprefix*/interwiki (
922 -- The interwiki prefix, (e.g. "Meatball", or the language prefix "de")
923 iw_prefix
char(32) NOT NULL,
925 -- The URL of the wiki, with "$1" as a placeholder for an article name.
926 -- Any spaces in the name will be transformed to underscores before
928 iw_url
char(127) NOT NULL,
930 -- A boolean value indicating whether the wiki is in this project
931 -- (used, for example, to detect redirect loops)
932 iw_local bool
NOT NULL,
934 -- Boolean value indicating whether interwiki transclusions are allowed.
935 iw_trans
tinyint(1) NOT NULL default 0,
937 UNIQUE KEY iw_prefix (iw_prefix
)
939 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
942 -- Used for caching expensive grouped queries
944 CREATE TABLE /*$wgDBprefix*/querycache (
945 -- A key name, generally the base name of of the special page.
946 qc_type
char(32) NOT NULL,
948 -- Some sort of stored value. Sizes, counts...
949 qc_value
int(5) unsigned
NOT NULL default '0',
951 -- Target namespace+title
952 qc_namespace
int NOT NULL default '0',
953 qc_title
char(255) binary NOT NULL default '',
955 KEY (qc_type
,qc_value
)
957 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
960 -- For a few generic cache operations if not using Memcached
962 CREATE TABLE /*$wgDBprefix*/objectcache (
963 keyname
char(255) binary NOT NULL default '',
966 UNIQUE KEY (keyname
),
969 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
972 -- Cache of interwiki transclusion
974 CREATE TABLE /*$wgDBprefix*/transcache (
975 tc_url
varchar(255) NOT NULL,
977 tc_time
int NOT NULL,
978 UNIQUE INDEX tc_url_idx (tc_url
)
979 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
981 CREATE TABLE /*$wgDBprefix*/logging (
982 -- Symbolic keys for the general log type and the action type
983 -- within the log. The output format will be controlled by the
984 -- action field, but only the type controls categorization.
985 log_type
char(10) NOT NULL default '',
986 log_action
char(10) NOT NULL default '',
989 log_timestamp
char(14) NOT NULL default '19700101000000',
991 -- The user who performed this action; key to user_id
992 log_user
int unsigned
NOT NULL default 0,
994 -- Key to the page affected. Where a user is the target,
995 -- this will point to the user page.
996 log_namespace
int NOT NULL default 0,
997 log_title
varchar(255) binary NOT NULL default '',
999 -- Freeform text. Interpreted as edit history comments.
1000 log_comment
varchar(255) NOT NULL default '',
1002 -- LF separated list of miscellaneous parameters
1003 log_params
blob NOT NULL,
1005 KEY type_time (log_type
, log_timestamp
),
1006 KEY user_time (log_user
, log_timestamp
),
1007 KEY page_time (log_namespace
, log_title
, log_timestamp
),
1008 KEY times (log_timestamp
)
1010 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
1012 CREATE TABLE /*$wgDBprefix*/trackbacks (
1013 tb_id
int auto_increment
,
1014 tb_page
int REFERENCES page(page_id
) ON DELETE CASCADE,
1015 tb_title
varchar(255) NOT NULL,
1016 tb_url
varchar(255) NOT NULL,
1018 tb_name
varchar(255),
1020 PRIMARY KEY (tb_id
),
1022 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
1025 -- Jobs performed by parallel apache threads or a command-line daemon
1026 CREATE TABLE /*$wgDBprefix*/job (
1027 job_id
int(9) unsigned
NOT NULL auto_increment
,
1029 -- Command name, currently only refreshLinks is defined
1030 job_cmd
varchar(255) NOT NULL default '',
1032 -- Namespace and title to act on
1033 -- Should be 0 and '' if the command does not operate on a title
1034 job_namespace
int NOT NULL,
1035 job_title
varchar(255) binary NOT NULL,
1037 -- Any other parameters to the command
1038 -- Presently unused, format undefined
1039 job_params
blob NOT NULL,
1041 PRIMARY KEY job_id (job_id
),
1042 KEY (job_cmd
, job_namespace
, job_title
)
1043 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
1046 -- Details of updates to cached special pages
1047 CREATE TABLE /*$wgDBprefix*/querycache_info (
1049 -- Special page name
1050 -- Corresponds to a qc_type value
1051 qci_type
varchar(32) NOT NULL default '',
1053 -- Timestamp of last update
1054 qci_timestamp
char(14) NOT NULL default '19700101000000',
1056 UNIQUE KEY ( qci_type
)
1060 -- For each redirect, this table contains exactly one row defining its target
1061 CREATE TABLE /*$wgDBprefix*/redirect (
1062 -- Key to the page_id of the redirect page
1063 rd_from
int(8) unsigned
NOT NULL default '0',
1065 -- Key to page_namespace/page_title of the target page.
1066 -- The target page may or may not exist, and due to renames
1067 -- and deletions may refer to different page records as time
1069 rd_namespace
int NOT NULL default '0',
1070 rd_title
varchar(255) binary NOT NULL default '',
1072 PRIMARY KEY rd_from (rd_from
),
1073 KEY rd_ns_title (rd_namespace
,rd_title
,rd_from
)
1074 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
1076 -- Used for caching expensive grouped queries that need two links (for example double-redirects)
1077 CREATE TABLE /*$wgDBprefix*/querycachetwo (
1078 -- A key name, generally the base name of of the special page.
1079 qcc_type
char(32) NOT NULL,
1081 -- Some sort of stored value. Sizes, counts...
1082 qcc_value
int(5) unsigned
NOT NULL default '0',
1084 -- Target namespace+title
1085 qcc_namespace
int NOT NULL default '0',
1086 qcc_title
char(255) binary NOT NULL default '',
1088 -- Target namespace+title2
1089 qcc_namespacetwo
int NOT NULL default '0',
1090 qcc_titletwo
char(255) binary NOT NULL default '',
1092 KEY qcc_type (qcc_type
,qcc_value
),
1093 KEY qcc_title (qcc_type
,qcc_namespace
,qcc_title
),
1094 KEY qcc_titletwo (qcc_type
,qcc_namespacetwo
,qcc_titletwo
)
1096 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
1098 --- Used for storing page restrictions (i.e. protection levels)
1099 CREATE TABLE /*$wgDBprefix*/page_restrictions (
1100 -- Page to apply restrictions to (Foreign Key to page).
1101 pr_page
int(8) NOT NULL,
1102 -- The protection type (edit, move, etc)
1103 pr_type
varchar(255) NOT NULL,
1104 -- The protection level (Sysop, autoconfirmed, etc)
1105 pr_level
varchar(255) NOT NULL,
1106 -- Whether or not to cascade the protection down to pages transcluded.
1107 pr_cascade
tinyint(4) NOT NULL,
1108 -- Field for future support of per-user restriction.
1109 pr_user
int(8) NULL,
1110 -- Field for time-limited protection.
1111 pr_expiry
char(14) binary NULL,
1113 PRIMARY KEY pr_pagetype (pr_page
,pr_type
),
1115 KEY pr_page (pr_page
),
1116 KEY pr_typelevel (pr_type
,pr_level
),
1117 KEY pr_level (pr_level
),
1118 KEY pr_cascade (pr_cascade
)
1119 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;