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 -- rev_deleted for archives
387 ar_deleted
tinyint(1) unsigned
NOT NULL default '0',
389 KEY name_title_timestamp (ar_namespace
,ar_title
,ar_timestamp
)
391 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
395 -- Track page-to-page hyperlinks within the wiki.
397 CREATE TABLE /*$wgDBprefix*/pagelinks (
398 -- Key to the page_id of the page containing the link.
399 pl_from
int(8) unsigned
NOT NULL default '0',
401 -- Key to page_namespace/page_title of the target page.
402 -- The target page may or may not exist, and due to renames
403 -- and deletions may refer to different page records as time
405 pl_namespace
int NOT NULL default '0',
406 pl_title
varchar(255) binary NOT NULL default '',
408 UNIQUE KEY pl_from (pl_from
,pl_namespace
,pl_title
),
409 KEY (pl_namespace
,pl_title
,pl_from
)
411 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
415 -- Track template inclusions.
417 CREATE TABLE /*$wgDBprefix*/templatelinks (
418 -- Key to the page_id of the page containing the link.
419 tl_from
int(8) unsigned
NOT NULL default '0',
421 -- Key to page_namespace/page_title of the target page.
422 -- The target page may or may not exist, and due to renames
423 -- and deletions may refer to different page records as time
425 tl_namespace
int NOT NULL default '0',
426 tl_title
varchar(255) binary NOT NULL default '',
428 UNIQUE KEY tl_from (tl_from
,tl_namespace
,tl_title
),
429 KEY (tl_namespace
,tl_title
,tl_from
)
431 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
434 -- Track links to images *used inline*
435 -- We don't distinguish live from broken links here, so
436 -- they do not need to be changed on upload/removal.
438 CREATE TABLE /*$wgDBprefix*/imagelinks (
439 -- Key to page_id of the page containing the image / media link.
440 il_from
int(8) unsigned
NOT NULL default '0',
442 -- Filename of target image.
443 -- This is also the page_title of the file's description page;
444 -- all such pages are in namespace 6 (NS_IMAGE).
445 il_to
varchar(255) binary NOT NULL default '',
447 UNIQUE KEY il_from (il_from
,il_to
),
450 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
453 -- Track category inclusions *used inline*
454 -- This tracks a single level of category membership
455 -- (folksonomic tagging, really).
457 CREATE TABLE /*$wgDBprefix*/categorylinks (
458 -- Key to page_id of the page defined as a category member.
459 cl_from
int(8) unsigned
NOT NULL default '0',
461 -- Name of the category.
462 -- This is also the page_title of the category's description page;
463 -- all such pages are in namespace 14 (NS_CATEGORY).
464 cl_to
varchar(255) binary NOT NULL default '',
466 -- The title of the linking page, or an optional override
467 -- to determine sort order. Sorting is by binary order, which
468 -- isn't always ideal, but collations seem to be an exciting
469 -- and dangerous new world in MySQL... The sortkey is updated
470 -- if no override exists and cl_from is renamed.
472 -- For MySQL 4.1+ with charset set to utf8, the sort key *index*
473 -- needs cut to be smaller than 1024 bytes (at 3 bytes per char).
474 -- To sort properly on the shorter key, this field needs to be
475 -- the same shortness.
476 cl_sortkey
varchar(86) binary NOT NULL default '',
478 -- This isn't really used at present. Provided for an optional
479 -- sorting method by approximate addition time.
480 cl_timestamp
timestamp NOT NULL,
482 UNIQUE KEY cl_from (cl_from
,cl_to
),
484 -- We always sort within a given category...
485 KEY cl_sortkey (cl_to
,cl_sortkey
),
488 KEY cl_timestamp (cl_to
,cl_timestamp
)
490 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
493 -- Track links to external URLs
495 CREATE TABLE /*$wgDBprefix*/externallinks (
496 -- page_id of the referring page
497 el_from
int(8) unsigned
NOT NULL default '0',
502 -- In the case of HTTP URLs, this is the URL with any username or password
503 -- removed, and with the labels in the hostname reversed and converted to
504 -- lower case. An extra dot is added to allow for matching of either
505 -- example.com or *.example.com in a single scan.
507 -- http://user:password@sub.example.com/page.html
509 -- http://com.example.sub./page.html
510 -- which allows for fast searching for all pages under example.com with the
512 -- WHERE el_index LIKE 'http://com.example.%'
513 el_index
blob NOT NULL,
515 KEY (el_from
, el_to(40)),
516 KEY (el_to(60), el_from
),
518 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
521 -- Track interlanguage links
523 CREATE TABLE /*$wgDBprefix*/langlinks (
524 -- page_id of the referring page
525 ll_from
int(8) unsigned
NOT NULL default '0',
527 -- Language code of the target
528 ll_lang
varchar(10) binary NOT NULL default '',
530 -- Title of the target, including namespace
531 ll_title
varchar(255) binary NOT NULL default '',
533 UNIQUE KEY (ll_from
, ll_lang
),
534 KEY (ll_lang
, ll_title
)
535 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
538 -- Contains a single row with some aggregate info
539 -- on the state of the site.
541 CREATE TABLE /*$wgDBprefix*/site_stats (
542 -- The single row should contain 1 here.
543 ss_row_id
int(8) unsigned
NOT NULL,
545 -- Total number of page views, if hit counters are enabled.
546 ss_total_views
bigint(20) unsigned
default '0',
548 -- Total number of edits performed.
549 ss_total_edits
bigint(20) unsigned
default '0',
551 -- An approximate count of pages matching the following criteria:
554 -- * contains the text '[['
555 -- See Article::isCountable() in includes/Article.php
556 ss_good_articles
bigint(20) unsigned
default '0',
558 -- Total pages, theoretically equal to SELECT COUNT(*) FROM page; except faster
559 ss_total_pages
bigint(20) default '-1',
561 -- Number of users, theoretically equal to SELECT COUNT(*) FROM user;
562 ss_users
bigint(20) default '-1',
564 -- Deprecated, no longer updated as of 1.5
565 ss_admins
int(10) default '-1',
567 -- Number of images, equivalent to SELECT COUNT(*) FROM image
568 ss_images
int(10) default '0',
570 UNIQUE KEY ss_row_id (ss_row_id
)
575 -- Stores an ID for every time any article is visited;
576 -- depending on $wgHitcounterUpdateFreq, it is
577 -- periodically cleared and the page_counter column
578 -- in the page table updated for the all articles
579 -- that have been visited.)
581 CREATE TABLE /*$wgDBprefix*/hitcounter (
582 hc_id
int unsigned
NOT NULL
583 ) ENGINE
=HEAP MAX_ROWS
=25000;
587 -- The internet is full of jerks, alas. Sometimes it's handy
588 -- to block a vandal or troll account.
590 CREATE TABLE /*$wgDBprefix*/ipblocks (
591 -- Primary key, introduced for privacy.
592 ipb_id
int(8) NOT NULL auto_increment
,
594 -- Blocked IP address in dotted-quad form or user name.
595 ipb_address tinyblob
NOT NULL,
597 -- Blocked user ID or 0 for IP blocks.
598 ipb_user
int(8) unsigned
NOT NULL default '0',
600 -- User ID who made the block.
601 ipb_by
int(8) unsigned
NOT NULL default '0',
603 -- Text comment made by blocker.
604 ipb_reason tinyblob
NOT NULL,
606 -- Creation (or refresh) date in standard YMDHMS form.
607 -- IP blocks expire automatically.
608 ipb_timestamp
char(14) binary NOT NULL default '',
610 -- Indicates that the IP address was banned because a banned
611 -- user accessed a page through it. If this is 1, ipb_address
612 -- will be hidden, and the block identified by block ID number.
613 ipb_auto bool
NOT NULL default 0,
615 -- If set to 1, block applies only to logged-out users
616 ipb_anon_only bool
NOT NULL default 0,
618 -- Block prevents account creation from matching IP addresses
619 ipb_create_account bool
NOT NULL default 1,
621 -- Block triggers autoblocks
622 ipb_enable_autoblock bool
NOT NULL default '1',
624 -- Time at which the block will expire.
625 ipb_expiry
char(14) binary NOT NULL default '',
627 -- Start and end of an address range, in hexadecimal
628 -- Size chosen to allow IPv6
629 ipb_range_start tinyblob
NOT NULL,
630 ipb_range_end tinyblob
NOT NULL,
631 -- Flag for entries hidden from users and Sysops
632 ipb_deleted bool
NOT NULL default 0,
634 PRIMARY KEY ipb_id (ipb_id
),
636 -- Unique index to support "user already blocked" messages
637 -- Any new options which prevent collisions should be included
638 UNIQUE INDEX ipb_address (ipb_address(255), ipb_user
, ipb_auto
, ipb_anon_only
),
640 INDEX ipb_user (ipb_user
),
641 INDEX ipb_range (ipb_range_start(8), ipb_range_end(8)),
642 INDEX ipb_timestamp (ipb_timestamp
),
643 INDEX ipb_expiry (ipb_expiry
)
645 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
649 -- Uploaded images and other files.
651 CREATE TABLE /*$wgDBprefix*/image (
653 -- This is also the title of the associated description page,
654 -- which will be in namespace 6 (NS_IMAGE).
655 img_name
varchar(255) binary NOT NULL default '',
657 -- File size in bytes.
658 img_size
int(8) unsigned
NOT NULL default '0',
660 -- For images, size in pixels.
661 img_width
int(5) NOT NULL default '0',
662 img_height
int(5) NOT NULL default '0',
664 -- Extracted EXIF metadata stored as a serialized PHP array.
665 img_metadata mediumblob
NOT NULL,
667 -- For images, bits per pixel if known.
668 img_bits
int(3) NOT NULL default '0',
670 -- Media type as defined by the MEDIATYPE_xxx constants
671 img_media_type
ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,
673 -- major part of a MIME media type as defined by IANA
674 -- see http://www.iana.org/assignments/media-types/
675 img_major_mime
ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") NOT NULL default "unknown",
677 -- minor part of a MIME media type as defined by IANA
678 -- the minor parts are not required to adher to any standard
679 -- but should be consistent throughout the database
680 -- see http://www.iana.org/assignments/media-types/
681 img_minor_mime
varchar(32) NOT NULL default "unknown",
683 -- Description field as entered by the uploader.
684 -- This is displayed in image upload history and logs.
685 img_description tinyblob
NOT NULL,
687 -- user_id and user_name of uploader.
688 img_user
int(5) unsigned
NOT NULL default '0',
689 img_user_text
varchar(255) binary NOT NULL,
691 -- Time of the upload.
692 img_timestamp
char(14) binary NOT NULL default '',
694 PRIMARY KEY img_name (img_name
),
696 -- Used by Special:Imagelist for sort-by-size
697 INDEX img_size (img_size
),
699 -- Used by Special:Newimages and Special:Imagelist
700 INDEX img_timestamp (img_timestamp
)
702 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
705 -- Previous revisions of uploaded files.
706 -- Awkwardly, image rows have to be moved into
707 -- this table at re-upload time.
709 CREATE TABLE /*$wgDBprefix*/oldimage (
710 -- Base filename: key to image.img_name
711 oi_name
varchar(255) binary NOT NULL default '',
713 -- Filename of the archived file.
714 -- This is generally a timestamp and '!' prepended to the base name.
715 oi_archive_name
varchar(255) binary NOT NULL default '',
717 -- Other fields as in image...
718 oi_size
int(8) unsigned
NOT NULL default 0,
719 oi_width
int(5) NOT NULL default 0,
720 oi_height
int(5) NOT NULL default 0,
721 oi_bits
int(3) NOT NULL default 0,
722 oi_description tinyblob
NOT NULL,
723 oi_user
int(5) unsigned
NOT NULL default '0',
724 oi_user_text
varchar(255) binary NOT NULL,
725 oi_timestamp
char(14) binary NOT NULL default '',
727 INDEX oi_name (oi_name(10))
729 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
732 -- Record of deleted file data
734 CREATE TABLE /*$wgDBprefix*/filearchive (
736 fa_id
int NOT NULL auto_increment
,
738 -- Original base filename; key to image.img_name, page.page_title, etc
739 fa_name
varchar(255) binary NOT NULL default '',
741 -- Filename of archived file, if an old revision
742 fa_archive_name
varchar(255) binary default '',
744 -- Which storage bin (directory tree or object store) the file data
745 -- is stored in. Should be 'deleted' for files that have been deleted;
746 -- any other bin is not yet in use.
747 fa_storage_group
varchar(16),
749 -- SHA-1 of the file contents plus extension, used as a key for storage.
750 -- eg 8f8a562add37052a1848ff7771a2c515db94baa9.jpg
752 -- If NULL, the file was missing at deletion time or has been purged
753 -- from the archival storage.
754 fa_storage_key
varchar(64) binary default '',
756 -- Deletion information, if this file is deleted.
758 fa_deleted_timestamp
char(14) binary default '',
759 fa_deleted_reason
text,
761 -- Visibility of deleted revisions, bitfield
762 fa_deleted
tinyint(1) unsigned
NOT NULL default '0',
764 -- Duped fields from image
765 fa_size
int(8) unsigned
default '0',
766 fa_width
int(5) default '0',
767 fa_height
int(5) default '0',
768 fa_metadata mediumblob
,
769 fa_bits
int(3) default '0',
770 fa_media_type
ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,
771 fa_major_mime
ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") default "unknown",
772 fa_minor_mime
varchar(32) default "unknown",
773 fa_description tinyblob
,
774 fa_user
int(5) unsigned
default '0',
775 fa_user_text
varchar(255) binary,
776 fa_timestamp
char(14) binary default '',
779 INDEX (fa_name
, fa_timestamp
), -- pick out by image name
780 INDEX (fa_storage_group
, fa_storage_key
), -- pick out dupe files
781 INDEX (fa_deleted_timestamp
), -- sort by deletion time
782 INDEX (fa_deleted_user
) -- sort by deleter
784 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
787 -- Primarily a summary table for Special:Recentchanges,
788 -- this table contains some additional info on edits from
789 -- the last few days, see Article::editUpdates()
791 CREATE TABLE /*$wgDBprefix*/recentchanges (
792 rc_id
int(8) NOT NULL auto_increment
,
793 rc_timestamp
varchar(14) binary NOT NULL default '',
794 rc_cur_time
varchar(14) binary NOT NULL default '',
797 rc_user
int(10) unsigned
NOT NULL default '0',
798 rc_user_text
varchar(255) binary NOT NULL,
800 -- When pages are renamed, their RC entries do _not_ change.
801 rc_namespace
int NOT NULL default '0',
802 rc_title
varchar(255) binary NOT NULL default '',
805 rc_comment
varchar(255) binary NOT NULL default '',
806 rc_minor
tinyint(3) unsigned
NOT NULL default '0',
808 -- Edits by user accounts with the 'bot' rights key are
809 -- marked with a 1 here, and will be hidden from the
811 rc_bot
tinyint(3) unsigned
NOT NULL default '0',
813 rc_new
tinyint(3) unsigned
NOT NULL default '0',
815 -- Key to page_id (was cur_id prior to 1.5).
816 -- This will keep links working after moves while
817 -- retaining the at-the-time name in the changes list.
818 rc_cur_id
int(10) unsigned
NOT NULL default '0',
820 -- rev_id of the given revision
821 rc_this_oldid
int(10) unsigned
NOT NULL default '0',
823 -- rev_id of the prior revision, for generating diff links.
824 rc_last_oldid
int(10) unsigned
NOT NULL default '0',
826 -- These may no longer be used, with the new move log.
827 rc_type
tinyint(3) unsigned
NOT NULL default '0',
828 rc_moved_to_ns
tinyint(3) unsigned
NOT NULL default '0',
829 rc_moved_to_title
varchar(255) binary NOT NULL default '',
831 -- If the Recent Changes Patrol option is enabled,
832 -- users may mark edits as having been reviewed to
833 -- remove a warning flag on the RC list.
834 -- A value of 1 indicates the page has been reviewed.
835 rc_patrolled
tinyint(3) unsigned
NOT NULL default '0',
837 -- Recorded IP address the edit was made from, if the
838 -- $wgPutIPinRC option is enabled.
839 rc_ip
char(15) NOT NULL default '',
841 -- Text length in characters before
842 -- and after the edit
846 -- Visibility of deleted revisions, bitfield
847 rc_deleted
tinyint(1) unsigned
NOT NULL default '0',
849 -- Value corresonding to log_id, specific log entries
850 rc_logid
int(10) unsigned
NOT NULL default '0',
851 -- Store log type info here, or null
852 rc_log_type
varchar(255) binary NULL default NULL,
853 -- Store log action or null
854 rc_log_action
varchar(255) binary NULL default NULL,
856 rc_params
blob NOT NULL default '',
858 PRIMARY KEY rc_id (rc_id
),
859 INDEX rc_timestamp (rc_timestamp
),
860 INDEX rc_namespace_title (rc_namespace
, rc_title
),
861 INDEX rc_cur_id (rc_cur_id
),
862 INDEX new_name_timestamp (rc_new
,rc_namespace
,rc_timestamp
),
864 INDEX rc_ns_usertext (rc_namespace
, rc_user_text
),
865 INDEX rc_user_text (rc_user_text
, rc_timestamp
)
867 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
869 CREATE TABLE /*$wgDBprefix*/watchlist (
870 -- Key to user.user_id
871 wl_user
int(5) unsigned
NOT NULL,
873 -- Key to page_namespace/page_title
874 -- Note that users may watch pages which do not exist yet,
875 -- or existed in the past but have been deleted.
876 wl_namespace
int NOT NULL default '0',
877 wl_title
varchar(255) binary NOT NULL default '',
879 -- Timestamp when user was last sent a notification e-mail;
880 -- cleared when the user visits the page.
881 wl_notificationtimestamp
varchar(14) binary,
883 UNIQUE KEY (wl_user
, wl_namespace
, wl_title
),
884 KEY namespace_title (wl_namespace
, wl_title
)
886 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
890 -- Used by the math module to keep track
891 -- of previously-rendered items.
893 CREATE TABLE /*$wgDBprefix*/math (
894 -- Binary MD5 hash of the latex fragment, used as an identifier key.
895 math_inputhash
varbinary(16) NOT NULL,
897 -- Not sure what this is, exactly...
898 math_outputhash
varbinary(16) NOT NULL,
900 -- texvc reports how well it thinks the HTML conversion worked;
901 -- if it's a low level the PNG rendering may be preferred.
902 math_html_conservativeness
tinyint(1) NOT NULL,
904 -- HTML output from texvc, if any
907 -- MathML output from texvc, if any
910 UNIQUE KEY math_inputhash (math_inputhash
)
912 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
915 -- When using the default MySQL search backend, page titles
916 -- and text are munged to strip markup, do Unicode case folding,
917 -- and prepare the result for MySQL's fulltext index.
919 -- This table must be MyISAM; InnoDB does not support the needed
922 CREATE TABLE /*$wgDBprefix*/searchindex (
924 si_page
int(8) unsigned
NOT NULL,
926 -- Munged version of title
927 si_title
varchar(255) NOT NULL default '',
929 -- Munged version of body text
930 si_text mediumtext
NOT NULL,
932 UNIQUE KEY (si_page
),
933 FULLTEXT
si_title (si_title
),
934 FULLTEXT
si_text (si_text
)
936 ) ENGINE
=MyISAM
, DEFAULT CHARSET
=utf8
;
939 -- Recognized interwiki link prefixes
941 CREATE TABLE /*$wgDBprefix*/interwiki (
942 -- The interwiki prefix, (e.g. "Meatball", or the language prefix "de")
943 iw_prefix
char(32) NOT NULL,
945 -- The URL of the wiki, with "$1" as a placeholder for an article name.
946 -- Any spaces in the name will be transformed to underscores before
948 iw_url
char(127) NOT NULL,
950 -- A boolean value indicating whether the wiki is in this project
951 -- (used, for example, to detect redirect loops)
952 iw_local bool
NOT NULL,
954 -- Boolean value indicating whether interwiki transclusions are allowed.
955 iw_trans
tinyint(1) NOT NULL default 0,
957 UNIQUE KEY iw_prefix (iw_prefix
)
959 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
962 -- Used for caching expensive grouped queries
964 CREATE TABLE /*$wgDBprefix*/querycache (
965 -- A key name, generally the base name of of the special page.
966 qc_type
char(32) NOT NULL,
968 -- Some sort of stored value. Sizes, counts...
969 qc_value
int(5) unsigned
NOT NULL default '0',
971 -- Target namespace+title
972 qc_namespace
int NOT NULL default '0',
973 qc_title
char(255) binary NOT NULL default '',
975 KEY (qc_type
,qc_value
)
977 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
980 -- For a few generic cache operations if not using Memcached
982 CREATE TABLE /*$wgDBprefix*/objectcache (
983 keyname
char(255) binary NOT NULL default '',
986 UNIQUE KEY (keyname
),
989 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
992 -- Cache of interwiki transclusion
994 CREATE TABLE /*$wgDBprefix*/transcache (
995 tc_url
varchar(255) NOT NULL,
997 tc_time
int NOT NULL,
998 UNIQUE INDEX tc_url_idx (tc_url
)
999 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
1001 CREATE TABLE /*$wgDBprefix*/logging (
1002 -- Symbolic keys for the general log type and the action type
1003 -- within the log. The output format will be controlled by the
1004 -- action field, but only the type controls categorization.
1005 log_type
char(10) NOT NULL default '',
1006 log_action
char(10) NOT NULL default '',
1009 log_timestamp
char(14) NOT NULL default '19700101000000',
1011 -- The user who performed this action; key to user_id
1012 log_user
int unsigned
NOT NULL default 0,
1014 -- Key to the page affected. Where a user is the target,
1015 -- this will point to the user page.
1016 log_namespace
int NOT NULL default 0,
1017 log_title
varchar(255) binary NOT NULL default '',
1019 -- Freeform text. Interpreted as edit history comments.
1020 log_comment
varchar(255) NOT NULL default '',
1022 -- LF separated list of miscellaneous parameters
1023 log_params
blob NOT NULL,
1025 KEY type_time (log_type
, log_timestamp
),
1026 KEY user_time (log_user
, log_timestamp
),
1027 KEY page_time (log_namespace
, log_title
, log_timestamp
),
1028 KEY times (log_timestamp
)
1030 -- rev_deleted for logs
1031 log_deleted
tinyint(1) unsigned
NOT NULL default '0',
1033 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
1035 CREATE TABLE /*$wgDBprefix*/trackbacks (
1036 tb_id
int auto_increment
,
1037 tb_page
int REFERENCES page(page_id
) ON DELETE CASCADE,
1038 tb_title
varchar(255) NOT NULL,
1039 tb_url
varchar(255) NOT NULL,
1041 tb_name
varchar(255),
1043 PRIMARY KEY (tb_id
),
1045 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
1048 -- Jobs performed by parallel apache threads or a command-line daemon
1049 CREATE TABLE /*$wgDBprefix*/job (
1050 job_id
int(9) unsigned
NOT NULL auto_increment
,
1052 -- Command name, currently only refreshLinks is defined
1053 job_cmd
varchar(255) NOT NULL default '',
1055 -- Namespace and title to act on
1056 -- Should be 0 and '' if the command does not operate on a title
1057 job_namespace
int NOT NULL,
1058 job_title
varchar(255) binary NOT NULL,
1060 -- Any other parameters to the command
1061 -- Presently unused, format undefined
1062 job_params
blob NOT NULL,
1064 PRIMARY KEY job_id (job_id
),
1065 KEY (job_cmd
, job_namespace
, job_title
)
1066 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
1069 -- Details of updates to cached special pages
1070 CREATE TABLE /*$wgDBprefix*/querycache_info (
1072 -- Special page name
1073 -- Corresponds to a qc_type value
1074 qci_type
varchar(32) NOT NULL default '',
1076 -- Timestamp of last update
1077 qci_timestamp
char(14) NOT NULL default '19700101000000',
1079 UNIQUE KEY ( qci_type
)
1083 -- For each redirect, this table contains exactly one row defining its target
1084 CREATE TABLE /*$wgDBprefix*/redirect (
1085 -- Key to the page_id of the redirect page
1086 rd_from
int(8) unsigned
NOT NULL default '0',
1088 -- Key to page_namespace/page_title of the target page.
1089 -- The target page may or may not exist, and due to renames
1090 -- and deletions may refer to different page records as time
1092 rd_namespace
int NOT NULL default '0',
1093 rd_title
varchar(255) binary NOT NULL default '',
1095 PRIMARY KEY rd_from (rd_from
),
1096 KEY rd_ns_title (rd_namespace
,rd_title
,rd_from
)
1097 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
1099 -- Used for caching expensive grouped queries that need two links (for example double-redirects)
1100 CREATE TABLE /*$wgDBprefix*/querycachetwo (
1101 -- A key name, generally the base name of of the special page.
1102 qcc_type
char(32) NOT NULL,
1104 -- Some sort of stored value. Sizes, counts...
1105 qcc_value
int(5) unsigned
NOT NULL default '0',
1107 -- Target namespace+title
1108 qcc_namespace
int NOT NULL default '0',
1109 qcc_title
char(255) binary NOT NULL default '',
1111 -- Target namespace+title2
1112 qcc_namespacetwo
int NOT NULL default '0',
1113 qcc_titletwo
char(255) binary NOT NULL default '',
1115 KEY qcc_type (qcc_type
,qcc_value
),
1116 KEY qcc_title (qcc_type
,qcc_namespace
,qcc_title
),
1117 KEY qcc_titletwo (qcc_type
,qcc_namespacetwo
,qcc_titletwo
)
1119 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;
1121 --- Used for storing page restrictions (i.e. protection levels)
1122 CREATE TABLE /*$wgDBprefix*/page_restrictions (
1123 -- Page to apply restrictions to (Foreign Key to page).
1124 pr_page
int(8) NOT NULL,
1125 -- The protection type (edit, move, etc)
1126 pr_type
varchar(255) NOT NULL,
1127 -- The protection level (Sysop, autoconfirmed, etc)
1128 pr_level
varchar(255) NOT NULL,
1129 -- Whether or not to cascade the protection down to pages transcluded.
1130 pr_cascade
tinyint(4) NOT NULL,
1131 -- Field for future support of per-user restriction.
1132 pr_user
int(8) NULL,
1133 -- Field for time-limited protection.
1134 pr_expiry
char(14) binary NULL,
1136 PRIMARY KEY pr_pagetype (pr_page
,pr_type
),
1138 KEY pr_page (pr_page
),
1139 KEY pr_typelevel (pr_type
,pr_level
),
1140 KEY pr_level (pr_level
),
1141 KEY pr_cascade (pr_cascade
)
1142 ) ENGINE
=InnoDB
, DEFAULT CHARSET
=utf8
;