1 -- SQL to create the initial tables for the MediaWiki database.
2 -- This is read and executed by the install script; you should
3 -- not have to run it by itself unless doing a manual install.
5 -- This is a shared schema file used for both MySQL and SQLite installs.
10 -- If possible, create tables as InnoDB to benefit from the
11 -- superior resiliency against crashes and ability to read
12 -- during writes (and write during reads!)
14 -- Only the 'searchindex' table requires MyISAM due to the
15 -- requirement for fulltext index support, which is missing
19 -- The MySQL table backend for MediaWiki currently uses
20 -- 14-character BINARY or VARBINARY fields to store timestamps.
21 -- The format is YYYYMMDDHHMMSS, which is derived from the
22 -- text format of MySQL's TIMESTAMP fields.
24 -- Historically TIMESTAMP fields were used, but abandoned
25 -- in early 2002 after a lot of trouble with the fields
28 -- The Postgres backend uses DATETIME fields for timestamps,
29 -- and we will migrate the MySQL definitions at some point as
33 -- The /*_*/ comments in this and other files are
34 -- replaced with the defined table prefix by the installer
35 -- and updater scripts. If you are installing or running
36 -- updates manually, you will need to manually insert the
37 -- table prefix if any when running these scripts.
42 -- The user table contains basic account information,
43 -- authentication keys, etc.
45 -- Some multi-wiki sites may share a single central user table
46 -- between separate wikis using the $wgSharedDB setting.
48 -- Note that when a external authentication plugin is used,
49 -- user table entries still need to be created to store
50 -- preferences and to key tracking information in the other
53 CREATE TABLE /*_*/user (
54 user_id
int unsigned
NOT NULL PRIMARY KEY AUTO_INCREMENT
,
56 -- Usernames must be unique, must not be in the form of
57 -- an IP address. _Shouldn't_ allow slashes or case
58 -- conflicts. Spaces are allowed, and are _not_ converted
59 -- to underscores like titles. See the User::newFromName() for
60 -- the specific tests that usernames have to pass.
61 user_name
varchar(255) binary NOT NULL default '',
63 -- Optional 'real name' to be displayed in credit listings
64 user_real_name
varchar(255) binary NOT NULL default '',
66 -- Password hashes, normally hashed like so:
67 -- MD5(CONCAT(user_id,'-',MD5(plaintext_password))), see
68 -- wfEncryptPassword() in GlobalFunctions.php
69 user_password tinyblob
NOT NULL,
71 -- When using 'mail me a new password', a random
72 -- password is generated and the hash stored here.
73 -- The previous password is left in place until
74 -- someone actually logs in with the new password,
75 -- at which point the hash is moved to user_password
76 -- and the old password is invalidated.
77 user_newpassword tinyblob
NOT NULL,
79 -- Timestamp of the last time when a new password was
80 -- sent, for throttling purposes
81 user_newpass_time
binary(14),
83 -- Note: email should be restricted, not public info.
84 -- Same with passwords.
85 user_email tinytext
NOT NULL,
87 -- Newline-separated list of name=value defining the user
89 -- Now obsolete in favour of user_properties table;
90 -- old values will be migrated from here transparently.
91 user_options
blob NOT NULL,
93 -- This is a timestamp which is updated when a user
94 -- logs in, logs out, changes preferences, or performs
95 -- some other action requiring HTML cache invalidation
96 -- to ensure that the UI is updated.
97 user_touched
binary(14) NOT NULL default '',
99 -- A pseudorandomly generated value that is stored in
100 -- a cookie when the "remember password" feature is
101 -- used (previously, a hash of the password was used, but
102 -- this was vulnerable to cookie-stealing attacks)
103 user_token
binary(32) NOT NULL default '',
105 -- Initially NULL; when a user's e-mail address has been
106 -- validated by returning with a mailed token, this is
107 -- set to the current timestamp.
108 user_email_authenticated
binary(14),
110 -- Randomly generated token created when the e-mail address
111 -- is set and a confirmation test mail sent.
112 user_email_token
binary(32),
114 -- Expiration date for the user_email_token
115 user_email_token_expires
binary(14),
117 -- Timestamp of account registration.
118 -- Accounts predating this schema addition may contain NULL.
119 user_registration
binary(14),
121 -- Count of edits and edit-like actions.
123 -- *NOT* intended to be an accurate copy of COUNT(*) WHERE rev_user=user_id
124 -- May contain NULL for old accounts if batch-update scripts haven't been
125 -- run, as well as listing deleted edits and other myriad ways it could be
128 -- Meant primarily for heuristic checks to give an impression of whether
129 -- the account has been used much.
132 ) /*$wgDBTableOptions*/;
134 CREATE UNIQUE INDEX /*i*/user_name
ON /*_*/user (user_name
);
135 CREATE INDEX /*i*/user_email_token
ON /*_*/user (user_email_token
);
139 -- User permissions have been broken out to a separate table;
140 -- this allows sites with a shared user table to have different
141 -- permissions assigned to a user in each project.
143 -- This table replaces the old user_rights field which used a
144 -- comma-separated blob.
146 CREATE TABLE /*_*/user_groups (
148 ug_user
int unsigned
NOT NULL default 0,
150 -- Group names are short symbolic string keys.
151 -- The set of group names is open-ended, though in practice
152 -- only some predefined ones are likely to be used.
154 -- At runtime $wgGroupPermissions will associate group keys
155 -- with particular permissions. A user will have the combined
156 -- permissions of any group they're explicitly in, plus
157 -- the implicit '*' and 'user' groups.
158 ug_group
varbinary(16) NOT NULL default ''
159 ) /*$wgDBTableOptions*/;
161 CREATE UNIQUE INDEX /*i*/ug_user_group
ON /*_*/user_groups (ug_user
,ug_group
);
162 CREATE INDEX /*i*/ug_group
ON /*_*/user_groups (ug_group
);
166 -- Stores notifications of user talk page changes, for the display
167 -- of the "you have new messages" box
169 CREATE TABLE /*_*/user_newtalk (
170 -- Key to user.user_id
171 user_id
int NOT NULL default 0,
172 -- If the user is an anonymous user their IP address is stored here
173 -- since the user_id of 0 is ambiguous
174 user_ip
varbinary(40) NOT NULL default '',
175 -- The highest timestamp of revisions of the talk page viewed
177 user_last_timestamp
binary(14) NOT NULL default ''
178 ) /*$wgDBTableOptions*/;
180 -- Indexes renamed for SQLite in 1.14
181 CREATE INDEX /*i*/un_user_id
ON /*_*/user_newtalk (user_id
);
182 CREATE INDEX /*i*/un_user_ip
ON /*_*/user_newtalk (user_ip
);
186 -- User preferences and perhaps other fun stuff. :)
187 -- Replaces the old user.user_options blob, with a couple nice properties:
189 -- 1) We only store non-default settings, so changes to the defauls
190 -- are now reflected for everybody, not just new accounts.
191 -- 2) We can more easily do bulk lookups, statistics, or modifications of
192 -- saved options since it's a sane table structure.
194 CREATE TABLE /*_*/user_properties (
195 -- Foreign key to user.user_id
196 up_user
int NOT NULL,
198 -- Name of the option being saved. This is indexed for bulk lookup.
199 up_property
varbinary(32) NOT NULL,
201 -- Property value as a string.
203 ) /*$wgDBTableOptions*/;
205 CREATE UNIQUE INDEX /*i*/user_properties_user_property
ON /*_*/user_properties (up_user
,up_property
);
206 CREATE INDEX /*i*/user_properties_property
ON /*_*/user_properties (up_property
);
209 -- Core of the wiki: each page has an entry here which identifies
210 -- it by title and contains some essential metadata.
212 CREATE TABLE /*_*/page (
213 -- Unique identifier number. The page_id will be preserved across
214 -- edits and rename operations, but not deletions and recreations.
215 page_id
int unsigned
NOT NULL PRIMARY KEY AUTO_INCREMENT
,
217 -- A page name is broken into a namespace and a title.
218 -- The namespace keys are UI-language-independent constants,
219 -- defined in includes/Defines.php
220 page_namespace
int NOT NULL,
222 -- The rest of the title, as text.
223 -- Spaces are transformed into underscores in title storage.
224 page_title
varchar(255) binary NOT NULL,
226 -- Comma-separated set of permission keys indicating who
227 -- can move or edit the page.
228 page_restrictions tinyblob
NOT NULL,
230 -- Number of times this page has been viewed.
231 page_counter
bigint unsigned
NOT NULL default 0,
233 -- 1 indicates the article is a redirect.
234 page_is_redirect tinyint unsigned
NOT NULL default 0,
236 -- 1 indicates this is a new entry, with only one edit.
237 -- Not all pages with one edit are new pages.
238 page_is_new tinyint unsigned
NOT NULL default 0,
240 -- Random value between 0 and 1, used for Special:Randompage
241 page_random
real unsigned
NOT NULL,
243 -- This timestamp is updated whenever the page changes in
244 -- a way requiring it to be re-rendered, invalidating caches.
245 -- Aside from editing this includes permission changes,
246 -- creation or deletion of linked pages, and alteration
247 -- of contained templates.
248 page_touched
binary(14) NOT NULL default '',
250 -- Handy key to revision.rev_id of the current revision.
251 -- This may be 0 during page creation, but that shouldn't
252 -- happen outside of a transaction... hopefully.
253 page_latest
int unsigned
NOT NULL,
255 -- Uncompressed length in bytes of the page's current source text.
256 page_len
int unsigned
NOT NULL
257 ) /*$wgDBTableOptions*/;
259 CREATE UNIQUE INDEX /*i*/name_title
ON /*_*/page (page_namespace
,page_title
);
260 CREATE INDEX /*i*/page_random
ON /*_*/page (page_random
);
261 CREATE INDEX /*i*/page_len
ON /*_*/page (page_len
);
265 -- Every edit of a page creates also a revision row.
266 -- This stores metadata about the revision, and a reference
267 -- to the text storage backend.
269 CREATE TABLE /*_*/revision (
270 rev_id
int unsigned
NOT NULL PRIMARY KEY AUTO_INCREMENT
,
272 -- Key to page_id. This should _never_ be invalid.
273 rev_page
int unsigned
NOT NULL,
275 -- Key to text.old_id, where the actual bulk text is stored.
276 -- It's possible for multiple revisions to use the same text,
277 -- for instance revisions where only metadata is altered
278 -- or a rollback to a previous version.
279 rev_text_id
int unsigned
NOT NULL,
281 -- Text comment summarizing the change.
282 -- This text is shown in the history and other changes lists,
283 -- rendered in a subset of wiki markup by Linker::formatComment()
284 rev_comment tinyblob
NOT NULL,
286 -- Key to user.user_id of the user who made this edit.
287 -- Stores 0 for anonymous edits and for some mass imports.
288 rev_user
int unsigned
NOT NULL default 0,
290 -- Text username or IP address of the editor.
291 rev_user_text
varchar(255) binary NOT NULL default '',
294 rev_timestamp
binary(14) NOT NULL default '',
296 -- Records whether the user marked the 'minor edit' checkbox.
297 -- Many automated edits are marked as minor.
298 rev_minor_edit tinyint unsigned
NOT NULL default 0,
300 -- Not yet used; reserved for future changes to the deletion system.
301 rev_deleted tinyint unsigned
NOT NULL default 0,
303 -- Length of this revision in bytes
304 rev_len
int unsigned
,
306 -- Key to revision.rev_id
307 -- This field is used to add support for a tree structure (The Adjacency List Model)
308 rev_parent_id
int unsigned
default NULL
310 ) /*$wgDBTableOptions*/ MAX_ROWS
=10000000 AVG_ROW_LENGTH
=1024;
311 -- In case tables are created as MyISAM, use row hints for MySQL <5.0 to avoid 4GB limit
313 CREATE UNIQUE INDEX /*i*/rev_page_id
ON /*_*/revision (rev_page
, rev_id
);
314 CREATE INDEX /*i*/rev_timestamp
ON /*_*/revision (rev_timestamp
);
315 CREATE INDEX /*i*/page_timestamp
ON /*_*/revision (rev_page
,rev_timestamp
);
316 CREATE INDEX /*i*/user_timestamp
ON /*_*/revision (rev_user
,rev_timestamp
);
317 CREATE INDEX /*i*/usertext_timestamp
ON /*_*/revision (rev_user_text
,rev_timestamp
);
320 -- Holds text of individual page revisions.
322 -- Field names are a holdover from the 'old' revisions table in
323 -- MediaWiki 1.4 and earlier: an upgrade will transform that
324 -- table into the 'text' table to minimize unnecessary churning
325 -- and downtime. If upgrading, the other fields will be left unused.
327 CREATE TABLE /*_*/text (
328 -- Unique text storage key number.
329 -- Note that the 'oldid' parameter used in URLs does *not*
330 -- refer to this number anymore, but to rev_id.
332 -- revision.rev_text_id is a key to this column
333 old_id
int unsigned
NOT NULL PRIMARY KEY AUTO_INCREMENT
,
335 -- Depending on the contents of the old_flags field, the text
336 -- may be convenient plain text, or it may be funkily encoded.
337 old_text mediumblob
NOT NULL,
339 -- Comma-separated list of flags:
340 -- gzip: text is compressed with PHP's gzdeflate() function.
341 -- utf8: text was stored as UTF-8.
342 -- If $wgLegacyEncoding option is on, rows *without* this flag
343 -- will be converted to UTF-8 transparently at load time.
344 -- object: text field contained a serialized PHP object.
345 -- The object either contains multiple versions compressed
346 -- together to achieve a better compression ratio, or it refers
347 -- to another row where the text can be found.
348 old_flags tinyblob
NOT NULL
349 ) /*$wgDBTableOptions*/ MAX_ROWS
=10000000 AVG_ROW_LENGTH
=10240;
350 -- In case tables are created as MyISAM, use row hints for MySQL <5.0 to avoid 4GB limit
354 -- Holding area for deleted articles, which may be viewed
355 -- or restored by admins through the Special:Undelete interface.
356 -- The fields generally correspond to the page, revision, and text
357 -- fields, with several caveats.
359 CREATE TABLE /*_*/archive (
360 ar_namespace
int NOT NULL default 0,
361 ar_title
varchar(255) binary NOT NULL default '',
363 -- Newly deleted pages will not store text in this table,
364 -- but will reference the separately existing text rows.
365 -- This field is retained for backwards compatibility,
366 -- so old archived pages will remain accessible after
367 -- upgrading from 1.4 to 1.5.
368 -- Text may be gzipped or otherwise funky.
369 ar_text mediumblob
NOT NULL,
371 -- Basic revision stuff...
372 ar_comment tinyblob
NOT NULL,
373 ar_user
int unsigned
NOT NULL default 0,
374 ar_user_text
varchar(255) binary NOT NULL,
375 ar_timestamp
binary(14) NOT NULL default '',
376 ar_minor_edit tinyint
NOT NULL default 0,
379 ar_flags tinyblob
NOT NULL,
381 -- When revisions are deleted, their unique rev_id is stored
382 -- here so it can be retained after undeletion. This is necessary
383 -- to retain permalinks to given revisions after accidental delete
384 -- cycles or messy operations like history merges.
386 -- Old entries from 1.4 will be NULL here, and a new rev_id will
387 -- be created on undeletion for those revisions.
388 ar_rev_id
int unsigned
,
390 -- For newly deleted revisions, this is the text.old_id key to the
391 -- actual stored text. To avoid breaking the block-compression scheme
392 -- and otherwise making storage changes harder, the actual text is
393 -- *not* deleted from the text table, merely hidden by removal of the
394 -- page and revision entries.
396 -- Old entries deleted under 1.2-1.4 will have NULL here, and their
397 -- ar_text and ar_flags fields will be used to create a new text
398 -- row upon undeletion.
399 ar_text_id
int unsigned
,
401 -- rev_deleted for archives
402 ar_deleted tinyint unsigned
NOT NULL default 0,
404 -- Length of this revision in bytes
407 -- Reference to page_id. Useful for sysadmin fixing of large pages
408 -- merged together in the archives, or for cleanly restoring a page
409 -- at its original ID number if possible.
411 -- Will be NULL for pages deleted prior to 1.11.
412 ar_page_id
int unsigned
,
414 -- Original previous revision
415 ar_parent_id
int unsigned
default NULL
416 ) /*$wgDBTableOptions*/;
418 CREATE INDEX /*i*/name_title_timestamp
ON /*_*/archive (ar_namespace
,ar_title
,ar_timestamp
);
419 CREATE INDEX /*i*/ar_usertext_timestamp
ON /*_*/archive (ar_user_text
,ar_timestamp
);
420 CREATE INDEX /*i*/ar_page_revid
ON /*_*/archive (ar_namespace
, ar_title
, ar_rev_id
);
424 -- Track page-to-page hyperlinks within the wiki.
426 CREATE TABLE /*_*/pagelinks (
427 -- Key to the page_id of the page containing the link.
428 pl_from
int unsigned
NOT NULL default 0,
430 -- Key to page_namespace/page_title of the target page.
431 -- The target page may or may not exist, and due to renames
432 -- and deletions may refer to different page records as time
434 pl_namespace
int NOT NULL default 0,
435 pl_title
varchar(255) binary NOT NULL default ''
436 ) /*$wgDBTableOptions*/;
438 CREATE UNIQUE INDEX /*i*/pl_from
ON /*_*/pagelinks (pl_from
,pl_namespace
,pl_title
);
439 CREATE UNIQUE INDEX /*i*/pl_namespace
ON /*_*/pagelinks (pl_namespace
,pl_title
,pl_from
);
443 -- Track template inclusions.
445 CREATE TABLE /*_*/templatelinks (
446 -- Key to the page_id of the page containing the link.
447 tl_from
int unsigned
NOT NULL default 0,
449 -- Key to page_namespace/page_title of the target page.
450 -- The target page may or may not exist, and due to renames
451 -- and deletions may refer to different page records as time
453 tl_namespace
int NOT NULL default 0,
454 tl_title
varchar(255) binary NOT NULL default ''
455 ) /*$wgDBTableOptions*/;
457 CREATE UNIQUE INDEX /*i*/tl_from
ON /*_*/templatelinks (tl_from
,tl_namespace
,tl_title
);
458 CREATE UNIQUE INDEX /*i*/tl_namespace
ON /*_*/templatelinks (tl_namespace
,tl_title
,tl_from
);
462 -- Track links to images *used inline*
463 -- We don't distinguish live from broken links here, so
464 -- they do not need to be changed on upload/removal.
466 CREATE TABLE /*_*/imagelinks (
467 -- Key to page_id of the page containing the image / media link.
468 il_from
int unsigned
NOT NULL default 0,
470 -- Filename of target image.
471 -- This is also the page_title of the file's description page;
472 -- all such pages are in namespace 6 (NS_FILE).
473 il_to
varchar(255) binary NOT NULL default ''
474 ) /*$wgDBTableOptions*/;
476 CREATE UNIQUE INDEX /*i*/il_from
ON /*_*/imagelinks (il_from
,il_to
);
477 CREATE UNIQUE INDEX /*i*/il_to
ON /*_*/imagelinks (il_to
,il_from
);
481 -- Track category inclusions *used inline*
482 -- This tracks a single level of category membership
484 CREATE TABLE /*_*/categorylinks (
485 -- Key to page_id of the page defined as a category member.
486 cl_from
int unsigned
NOT NULL default 0,
488 -- Name of the category.
489 -- This is also the page_title of the category's description page;
490 -- all such pages are in namespace 14 (NS_CATEGORY).
491 cl_to
varchar(255) binary NOT NULL default '',
493 -- A binary string obtained by applying a sortkey generation algorithm
494 -- (Language::convertToSortkey()) to page_title, or cl_sortkey_prefix . "\0"
495 -- . page_title if cl_sortkey_prefix is nonempty.
497 -- Truncate so that the cl_sortkey key fits in 1000 bytes (MyISAM 5 with
498 -- server_character_set=utf8). FIXME: this truncation probably makes no
499 -- sense anymore; we should be using varbinary for this, utf8 will break
501 cl_sortkey
varchar(70) binary NOT NULL default '',
503 -- A prefix for the raw sortkey manually specified by the user, either via
504 -- [[Category:Foo|prefix]] or {{defaultsort:prefix}}. If nonempty, it's
505 -- concatenated with a null followed by the page title before the sortkey
506 -- conversion algorithm is run. We store this so that we can update
507 -- collations without reparsing all pages.
508 cl_sortkey_prefix
varchar(255) binary NOT NULL default '',
510 -- This isn't really used at present. Provided for an optional
511 -- sorting method by approximate addition time.
512 cl_timestamp
timestamp NOT NULL,
514 -- Stores $wgCollationVersion at the time cl_sortkey was generated. This can
515 -- be used to install new collation versions, tracking which rows are not yet
516 -- updated. 0 means no collation, this is a legacy row that needs to be
517 -- updated by updateCollation.php. In the future, it might be possible to
518 -- specify different collations per category.
519 cl_collation tinyint
NOT NULL default 0,
521 -- Stores whether cl_from is a category, file, or other page, so we can
522 -- paginate the three categories separately. This never has to be updated
523 -- after the page is created, since none of these page types can be moved to
525 cl_type
ENUM('page', 'subcat', 'file') NOT NULL default 'page'
526 ) /*$wgDBTableOptions*/;
528 CREATE UNIQUE INDEX /*i*/cl_from
ON /*_*/categorylinks (cl_from
,cl_to
);
530 -- We always sort within a given category, and within a given type. FIXME:
531 -- Formerly this index didn't cover cl_type (since that didn't exist), so old
532 -- callers won't be using an index: fix this?
533 CREATE INDEX /*i*/cl_sortkey
ON /*_*/categorylinks (cl_to
,cl_type
,cl_sortkey
,cl_from
);
536 CREATE INDEX /*i*/cl_timestamp
ON /*_*/categorylinks (cl_to
,cl_timestamp
);
538 -- For finding rows with outdated collation
539 CREATE INDEX /*i*/cl_collation
ON /*_*/categorylinks (cl_collation
);
542 -- Track all existing categories. Something is a category if 1) it has an en-
543 -- try somewhere in categorylinks, or 2) it once did. Categories might not
544 -- have corresponding pages, so they need to be tracked separately.
546 CREATE TABLE /*_*/category (
548 cat_id
int unsigned
NOT NULL PRIMARY KEY AUTO_INCREMENT
,
550 -- Name of the category, in the same form as page_title (with underscores).
551 -- If there is a category page corresponding to this category, by definition,
552 -- it has this name (in the Category namespace).
553 cat_title
varchar(255) binary NOT NULL,
555 -- The numbers of member pages (including categories and media), subcatego-
556 -- ries, and Image: namespace members, respectively. These are signed to
557 -- make underflow more obvious. We make the first number include the second
558 -- two for better sorting: subtracting for display is easy, adding for order-
560 cat_pages
int signed
NOT NULL default 0,
561 cat_subcats
int signed
NOT NULL default 0,
562 cat_files
int signed
NOT NULL default 0,
564 -- Reserved for future use
565 cat_hidden tinyint unsigned
NOT NULL default 0
566 ) /*$wgDBTableOptions*/;
568 CREATE UNIQUE INDEX /*i*/cat_title
ON /*_*/category (cat_title
);
570 -- For Special:Mostlinkedcategories
571 CREATE INDEX /*i*/cat_pages
ON /*_*/category (cat_pages
);
575 -- Track links to external URLs
577 CREATE TABLE /*_*/externallinks (
578 -- page_id of the referring page
579 el_from
int unsigned
NOT NULL default 0,
584 -- In the case of HTTP URLs, this is the URL with any username or password
585 -- removed, and with the labels in the hostname reversed and converted to
586 -- lower case. An extra dot is added to allow for matching of either
587 -- example.com or *.example.com in a single scan.
589 -- http://user:password@sub.example.com/page.html
591 -- http://com.example.sub./page.html
592 -- which allows for fast searching for all pages under example.com with the
594 -- WHERE el_index LIKE 'http://com.example.%'
595 el_index
blob NOT NULL
596 ) /*$wgDBTableOptions*/;
598 CREATE INDEX /*i*/el_from
ON /*_*/externallinks (el_from
, el_to(40));
599 CREATE INDEX /*i*/el_to
ON /*_*/externallinks (el_to(60), el_from
);
600 CREATE INDEX /*i*/el_index
ON /*_*/externallinks (el_index(60));
604 -- Track external user accounts, if ExternalAuth is used
606 CREATE TABLE /*_*/external_user (
607 -- Foreign key to user_id
608 eu_local_id
int unsigned
NOT NULL PRIMARY KEY,
610 -- Some opaque identifier provided by the external database
611 eu_external_id
varchar(255) binary NOT NULL
612 ) /*$wgDBTableOptions*/;
614 CREATE UNIQUE INDEX /*i*/eu_external_id
ON /*_*/external_user (eu_external_id
);
618 -- Track interlanguage links
620 CREATE TABLE /*_*/langlinks (
621 -- page_id of the referring page
622 ll_from
int unsigned
NOT NULL default 0,
624 -- Language code of the target
625 ll_lang
varbinary(20) NOT NULL default '',
627 -- Title of the target, including namespace
628 ll_title
varchar(255) binary NOT NULL default ''
629 ) /*$wgDBTableOptions*/;
631 CREATE UNIQUE INDEX /*i*/ll_from
ON /*_*/langlinks (ll_from
, ll_lang
);
632 CREATE INDEX /*i*/ll_lang
ON /*_*/langlinks (ll_lang
, ll_title
);
636 -- Track inline interwiki links
638 CREATE TABLE /*_*/iwlinks (
639 -- page_id of the referring page
640 iwl_from
int unsigned
NOT NULL default 0,
642 -- Interwiki prefix code of the target
643 iwl_prefix
varbinary(20) NOT NULL default '',
645 -- Title of the target, including namespace
646 iwl_title
varchar(255) binary NOT NULL default ''
647 ) /*$wgDBTableOptions*/;
649 CREATE UNIQUE INDEX /*i*/iwl_from
ON /*_*/iwlinks (iwl_from
, iwl_prefix
, iwl_title
);
650 CREATE UNIQUE INDEX /*i*/iwl_prefix_title_from
ON /*_*/iwlinks (iwl_prefix
, iwl_title
, iwl_from
);
654 -- Contains a single row with some aggregate info
655 -- on the state of the site.
657 CREATE TABLE /*_*/site_stats (
658 -- The single row should contain 1 here.
659 ss_row_id
int unsigned
NOT NULL,
661 -- Total number of page views, if hit counters are enabled.
662 ss_total_views
bigint unsigned
default 0,
664 -- Total number of edits performed.
665 ss_total_edits
bigint unsigned
default 0,
667 -- An approximate count of pages matching the following criteria:
670 -- * contains the text '[['
671 -- See Article::isCountable() in includes/Article.php
672 ss_good_articles
bigint unsigned
default 0,
674 -- Total pages, theoretically equal to SELECT COUNT(*) FROM page; except faster
675 ss_total_pages
bigint default '-1',
677 -- Number of users, theoretically equal to SELECT COUNT(*) FROM user;
678 ss_users
bigint default '-1',
680 -- Number of users that still edit
681 ss_active_users
bigint default '-1',
683 -- Deprecated, no longer updated as of 1.5
684 ss_admins
int default '-1',
686 -- Number of images, equivalent to SELECT COUNT(*) FROM image
687 ss_images
int default 0
688 ) /*$wgDBTableOptions*/;
690 -- Pointless index to assuage developer superstitions
691 CREATE UNIQUE INDEX /*i*/ss_row_id
ON /*_*/site_stats (ss_row_id
);
695 -- Stores an ID for every time any article is visited;
696 -- depending on $wgHitcounterUpdateFreq, it is
697 -- periodically cleared and the page_counter column
698 -- in the page table updated for all the articles
699 -- that have been visited.)
701 CREATE TABLE /*_*/hitcounter (
702 hc_id
int unsigned
NOT NULL
703 ) ENGINE
=HEAP MAX_ROWS
=25000;
707 -- The internet is full of jerks, alas. Sometimes it's handy
708 -- to block a vandal or troll account.
710 CREATE TABLE /*_*/ipblocks (
711 -- Primary key, introduced for privacy.
712 ipb_id
int NOT NULL PRIMARY KEY AUTO_INCREMENT
,
714 -- Blocked IP address in dotted-quad form or user name.
715 ipb_address tinyblob
NOT NULL,
717 -- Blocked user ID or 0 for IP blocks.
718 ipb_user
int unsigned
NOT NULL default 0,
720 -- User ID who made the block.
721 ipb_by
int unsigned
NOT NULL default 0,
723 -- User name of blocker
724 ipb_by_text
varchar(255) binary NOT NULL default '',
726 -- Text comment made by blocker.
727 ipb_reason tinyblob
NOT NULL,
729 -- Creation (or refresh) date in standard YMDHMS form.
730 -- IP blocks expire automatically.
731 ipb_timestamp
binary(14) NOT NULL default '',
733 -- Indicates that the IP address was banned because a banned
734 -- user accessed a page through it. If this is 1, ipb_address
735 -- will be hidden, and the block identified by block ID number.
736 ipb_auto bool
NOT NULL default 0,
738 -- If set to 1, block applies only to logged-out users
739 ipb_anon_only bool
NOT NULL default 0,
741 -- Block prevents account creation from matching IP addresses
742 ipb_create_account bool
NOT NULL default 1,
744 -- Block triggers autoblocks
745 ipb_enable_autoblock bool
NOT NULL default '1',
747 -- Time at which the block will expire.
749 ipb_expiry
varbinary(14) NOT NULL default '',
751 -- Start and end of an address range, in hexadecimal
752 -- Size chosen to allow IPv6
753 ipb_range_start tinyblob
NOT NULL,
754 ipb_range_end tinyblob
NOT NULL,
756 -- Flag for entries hidden from users and Sysops
757 ipb_deleted bool
NOT NULL default 0,
759 -- Block prevents user from accessing Special:Emailuser
760 ipb_block_email bool
NOT NULL default 0,
762 -- Block allows user to edit their own talk page
763 ipb_allow_usertalk bool
NOT NULL default 0
765 ) /*$wgDBTableOptions*/;
767 -- Unique index to support "user already blocked" messages
768 -- Any new options which prevent collisions should be included
769 CREATE UNIQUE INDEX /*i*/ipb_address
ON /*_*/ipblocks (ipb_address(255), ipb_user
, ipb_auto
, ipb_anon_only
);
771 CREATE INDEX /*i*/ipb_user
ON /*_*/ipblocks (ipb_user
);
772 CREATE INDEX /*i*/ipb_range
ON /*_*/ipblocks (ipb_range_start(8), ipb_range_end(8));
773 CREATE INDEX /*i*/ipb_timestamp
ON /*_*/ipblocks (ipb_timestamp
);
774 CREATE INDEX /*i*/ipb_expiry
ON /*_*/ipblocks (ipb_expiry
);
778 -- Uploaded images and other files.
780 CREATE TABLE /*_*/image (
782 -- This is also the title of the associated description page,
783 -- which will be in namespace 6 (NS_FILE).
784 img_name
varchar(255) binary NOT NULL default '' PRIMARY KEY,
786 -- File size in bytes.
787 img_size
int unsigned
NOT NULL default 0,
789 -- For images, size in pixels.
790 img_width
int NOT NULL default 0,
791 img_height
int NOT NULL default 0,
793 -- Extracted EXIF metadata stored as a serialized PHP array.
794 img_metadata mediumblob
NOT NULL,
796 -- For images, bits per pixel if known.
797 img_bits
int NOT NULL default 0,
799 -- Media type as defined by the MEDIATYPE_xxx constants
800 img_media_type
ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,
802 -- major part of a MIME media type as defined by IANA
803 -- see http://www.iana.org/assignments/media-types/
804 img_major_mime
ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") NOT NULL default "unknown",
806 -- minor part of a MIME media type as defined by IANA
807 -- the minor parts are not required to adher to any standard
808 -- but should be consistent throughout the database
809 -- see http://www.iana.org/assignments/media-types/
810 img_minor_mime
varbinary(100) NOT NULL default "unknown",
812 -- Description field as entered by the uploader.
813 -- This is displayed in image upload history and logs.
814 img_description tinyblob
NOT NULL,
816 -- user_id and user_name of uploader.
817 img_user
int unsigned
NOT NULL default 0,
818 img_user_text
varchar(255) binary NOT NULL,
820 -- Time of the upload.
821 img_timestamp
varbinary(14) NOT NULL default '',
823 -- SHA-1 content hash in base-36
824 img_sha1
varbinary(32) NOT NULL default ''
825 ) /*$wgDBTableOptions*/;
827 CREATE INDEX /*i*/img_usertext_timestamp
ON /*_*/image (img_user_text
,img_timestamp
);
828 -- Used by Special:ListFiles for sort-by-size
829 CREATE INDEX /*i*/img_size
ON /*_*/image (img_size
);
830 -- Used by Special:Newimages and Special:ListFiles
831 CREATE INDEX /*i*/img_timestamp
ON /*_*/image (img_timestamp
);
832 -- Used in API and duplicate search
833 CREATE INDEX /*i*/img_sha1
ON /*_*/image (img_sha1
);
837 -- Previous revisions of uploaded files.
838 -- Awkwardly, image rows have to be moved into
839 -- this table at re-upload time.
841 CREATE TABLE /*_*/oldimage (
842 -- Base filename: key to image.img_name
843 oi_name
varchar(255) binary NOT NULL default '',
845 -- Filename of the archived file.
846 -- This is generally a timestamp and '!' prepended to the base name.
847 oi_archive_name
varchar(255) binary NOT NULL default '',
849 -- Other fields as in image...
850 oi_size
int unsigned
NOT NULL default 0,
851 oi_width
int NOT NULL default 0,
852 oi_height
int NOT NULL default 0,
853 oi_bits
int NOT NULL default 0,
854 oi_description tinyblob
NOT NULL,
855 oi_user
int unsigned
NOT NULL default 0,
856 oi_user_text
varchar(255) binary NOT NULL,
857 oi_timestamp
binary(14) NOT NULL default '',
859 oi_metadata mediumblob
NOT NULL,
860 oi_media_type
ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,
861 oi_major_mime
ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") NOT NULL default "unknown",
862 oi_minor_mime
varbinary(100) NOT NULL default "unknown",
863 oi_deleted tinyint unsigned
NOT NULL default 0,
864 oi_sha1
varbinary(32) NOT NULL default ''
865 ) /*$wgDBTableOptions*/;
867 CREATE INDEX /*i*/oi_usertext_timestamp
ON /*_*/oldimage (oi_user_text
,oi_timestamp
);
868 CREATE INDEX /*i*/oi_name_timestamp
ON /*_*/oldimage (oi_name
,oi_timestamp
);
869 -- oi_archive_name truncated to 14 to avoid key length overflow
870 CREATE INDEX /*i*/oi_name_archive_name
ON /*_*/oldimage (oi_name
,oi_archive_name(14));
871 CREATE INDEX /*i*/oi_sha1
ON /*_*/oldimage (oi_sha1
);
875 -- Record of deleted file data
877 CREATE TABLE /*_*/filearchive (
879 fa_id
int NOT NULL PRIMARY KEY AUTO_INCREMENT
,
881 -- Original base filename; key to image.img_name, page.page_title, etc
882 fa_name
varchar(255) binary NOT NULL default '',
884 -- Filename of archived file, if an old revision
885 fa_archive_name
varchar(255) binary default '',
887 -- Which storage bin (directory tree or object store) the file data
888 -- is stored in. Should be 'deleted' for files that have been deleted;
889 -- any other bin is not yet in use.
890 fa_storage_group
varbinary(16),
892 -- SHA-1 of the file contents plus extension, used as a key for storage.
893 -- eg 8f8a562add37052a1848ff7771a2c515db94baa9.jpg
895 -- If NULL, the file was missing at deletion time or has been purged
896 -- from the archival storage.
897 fa_storage_key
varbinary(64) default '',
899 -- Deletion information, if this file is deleted.
901 fa_deleted_timestamp
binary(14) default '',
902 fa_deleted_reason
text,
904 -- Duped fields from image
905 fa_size
int unsigned
default 0,
906 fa_width
int default 0,
907 fa_height
int default 0,
908 fa_metadata mediumblob
,
909 fa_bits
int default 0,
910 fa_media_type
ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,
911 fa_major_mime
ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") default "unknown",
912 fa_minor_mime
varbinary(100) default "unknown",
913 fa_description tinyblob
,
914 fa_user
int unsigned
default 0,
915 fa_user_text
varchar(255) binary,
916 fa_timestamp
binary(14) default '',
918 -- Visibility of deleted revisions, bitfield
919 fa_deleted tinyint unsigned
NOT NULL default 0
920 ) /*$wgDBTableOptions*/;
922 -- pick out by image name
923 CREATE INDEX /*i*/fa_name
ON /*_*/filearchive (fa_name
, fa_timestamp
);
924 -- pick out dupe files
925 CREATE INDEX /*i*/fa_storage_group
ON /*_*/filearchive (fa_storage_group
, fa_storage_key
);
926 -- sort by deletion time
927 CREATE INDEX /*i*/fa_deleted_timestamp
ON /*_*/filearchive (fa_deleted_timestamp
);
929 CREATE INDEX /*i*/fa_user_timestamp
ON /*_*/filearchive (fa_user_text
,fa_timestamp
);
933 -- Primarily a summary table for Special:Recentchanges,
934 -- this table contains some additional info on edits from
935 -- the last few days, see Article::editUpdates()
937 CREATE TABLE /*_*/recentchanges (
938 rc_id
int NOT NULL PRIMARY KEY AUTO_INCREMENT
,
939 rc_timestamp
varbinary(14) NOT NULL default '',
940 rc_cur_time
varbinary(14) NOT NULL default '',
943 rc_user
int unsigned
NOT NULL default 0,
944 rc_user_text
varchar(255) binary NOT NULL,
946 -- When pages are renamed, their RC entries do _not_ change.
947 rc_namespace
int NOT NULL default 0,
948 rc_title
varchar(255) binary NOT NULL default '',
951 rc_comment
varchar(255) binary NOT NULL default '',
952 rc_minor tinyint unsigned
NOT NULL default 0,
954 -- Edits by user accounts with the 'bot' rights key are
955 -- marked with a 1 here, and will be hidden from the
957 rc_bot tinyint unsigned
NOT NULL default 0,
959 rc_new tinyint unsigned
NOT NULL default 0,
961 -- Key to page_id (was cur_id prior to 1.5).
962 -- This will keep links working after moves while
963 -- retaining the at-the-time name in the changes list.
964 rc_cur_id
int unsigned
NOT NULL default 0,
966 -- rev_id of the given revision
967 rc_this_oldid
int unsigned
NOT NULL default 0,
969 -- rev_id of the prior revision, for generating diff links.
970 rc_last_oldid
int unsigned
NOT NULL default 0,
972 -- These may no longer be used, with the new move log.
973 rc_type tinyint unsigned
NOT NULL default 0,
974 rc_moved_to_ns tinyint unsigned
NOT NULL default 0,
975 rc_moved_to_title
varchar(255) binary NOT NULL default '',
977 -- If the Recent Changes Patrol option is enabled,
978 -- users may mark edits as having been reviewed to
979 -- remove a warning flag on the RC list.
980 -- A value of 1 indicates the page has been reviewed.
981 rc_patrolled tinyint unsigned
NOT NULL default 0,
983 -- Recorded IP address the edit was made from, if the
984 -- $wgPutIPinRC option is enabled.
985 rc_ip
varbinary(40) NOT NULL default '',
987 -- Text length in characters before
988 -- and after the edit
992 -- Visibility of recent changes items, bitfield
993 rc_deleted tinyint unsigned
NOT NULL default 0,
995 -- Value corresonding to log_id, specific log entries
996 rc_logid
int unsigned
NOT NULL default 0,
997 -- Store log type info here, or null
998 rc_log_type
varbinary(255) NULL default NULL,
999 -- Store log action or null
1000 rc_log_action
varbinary(255) NULL default NULL,
1003 ) /*$wgDBTableOptions*/;
1005 CREATE INDEX /*i*/rc_timestamp
ON /*_*/recentchanges (rc_timestamp
);
1006 CREATE INDEX /*i*/rc_namespace_title
ON /*_*/recentchanges (rc_namespace
, rc_title
);
1007 CREATE INDEX /*i*/rc_cur_id
ON /*_*/recentchanges (rc_cur_id
);
1008 CREATE INDEX /*i*/new_name_timestamp
ON /*_*/recentchanges (rc_new
,rc_namespace
,rc_timestamp
);
1009 CREATE INDEX /*i*/rc_ip
ON /*_*/recentchanges (rc_ip
);
1010 CREATE INDEX /*i*/rc_ns_usertext
ON /*_*/recentchanges (rc_namespace
, rc_user_text
);
1011 CREATE INDEX /*i*/rc_user_text
ON /*_*/recentchanges (rc_user_text
, rc_timestamp
);
1014 CREATE TABLE /*_*/watchlist (
1015 -- Key to user.user_id
1016 wl_user
int unsigned
NOT NULL,
1018 -- Key to page_namespace/page_title
1019 -- Note that users may watch pages which do not exist yet,
1020 -- or existed in the past but have been deleted.
1021 wl_namespace
int NOT NULL default 0,
1022 wl_title
varchar(255) binary NOT NULL default '',
1024 -- Timestamp when user was last sent a notification e-mail;
1025 -- cleared when the user visits the page.
1026 wl_notificationtimestamp
varbinary(14)
1028 ) /*$wgDBTableOptions*/;
1030 CREATE UNIQUE INDEX /*i*/wl_user
ON /*_*/watchlist (wl_user
, wl_namespace
, wl_title
);
1031 CREATE INDEX /*i*/namespace_title
ON /*_*/watchlist (wl_namespace
, wl_title
);
1035 -- Used by the math module to keep track
1036 -- of previously-rendered items.
1038 CREATE TABLE /*_*/math (
1039 -- Binary MD5 hash of the latex fragment, used as an identifier key.
1040 math_inputhash
varbinary(16) NOT NULL,
1042 -- Not sure what this is, exactly...
1043 math_outputhash
varbinary(16) NOT NULL,
1045 -- texvc reports how well it thinks the HTML conversion worked;
1046 -- if it's a low level the PNG rendering may be preferred.
1047 math_html_conservativeness tinyint
NOT NULL,
1049 -- HTML output from texvc, if any
1052 -- MathML output from texvc, if any
1054 ) /*$wgDBTableOptions*/;
1056 CREATE UNIQUE INDEX /*i*/math_inputhash
ON /*_*/math (math_inputhash
);
1060 -- When using the default MySQL search backend, page titles
1061 -- and text are munged to strip markup, do Unicode case folding,
1062 -- and prepare the result for MySQL's fulltext index.
1064 -- This table must be MyISAM; InnoDB does not support the needed
1067 CREATE TABLE /*_*/searchindex (
1069 si_page
int unsigned
NOT NULL,
1071 -- Munged version of title
1072 si_title
varchar(255) NOT NULL default '',
1074 -- Munged version of body text
1075 si_text mediumtext
NOT NULL
1078 CREATE UNIQUE INDEX /*i*/si_page
ON /*_*/searchindex (si_page
);
1079 CREATE FULLTEXT
INDEX /*i*/si_title
ON /*_*/searchindex (si_title
);
1080 CREATE FULLTEXT
INDEX /*i*/si_text
ON /*_*/searchindex (si_text
);
1084 -- Recognized interwiki link prefixes
1086 CREATE TABLE /*_*/interwiki (
1087 -- The interwiki prefix, (e.g. "Meatball", or the language prefix "de")
1088 iw_prefix
varchar(32) NOT NULL,
1090 -- The URL of the wiki, with "$1" as a placeholder for an article name.
1091 -- Any spaces in the name will be transformed to underscores before
1093 iw_url
blob NOT NULL,
1095 -- The URL of the file api.php
1096 iw_api
blob NOT NULL,
1098 -- The name of the database (for a connection to be established with wfGetLB( 'wikiid' ))
1099 iw_wikiid
varchar(64) NOT NULL,
1101 -- A boolean value indicating whether the wiki is in this project
1102 -- (used, for example, to detect redirect loops)
1103 iw_local bool
NOT NULL,
1105 -- Boolean value indicating whether interwiki transclusions are allowed.
1106 iw_trans tinyint
NOT NULL default 0
1107 ) /*$wgDBTableOptions*/;
1109 CREATE UNIQUE INDEX /*i*/iw_prefix
ON /*_*/interwiki (iw_prefix
);
1113 -- Used for caching expensive grouped queries
1115 CREATE TABLE /*_*/querycache (
1116 -- A key name, generally the base name of of the special page.
1117 qc_type
varbinary(32) NOT NULL,
1119 -- Some sort of stored value. Sizes, counts...
1120 qc_value
int unsigned
NOT NULL default 0,
1122 -- Target namespace+title
1123 qc_namespace
int NOT NULL default 0,
1124 qc_title
varchar(255) binary NOT NULL default ''
1125 ) /*$wgDBTableOptions*/;
1127 CREATE INDEX /*i*/qc_type
ON /*_*/querycache (qc_type
,qc_value
);
1131 -- For a few generic cache operations if not using Memcached
1133 CREATE TABLE /*_*/objectcache (
1134 keyname
varbinary(255) NOT NULL default '' PRIMARY KEY,
1137 ) /*$wgDBTableOptions*/;
1138 CREATE INDEX /*i*/exptime
ON /*_*/objectcache (exptime
);
1142 -- Cache of interwiki transclusion
1144 CREATE TABLE /*_*/transcache (
1145 tc_url
varbinary(255) NOT NULL,
1147 tc_time
binary(14) NOT NULL
1148 ) /*$wgDBTableOptions*/;
1150 CREATE UNIQUE INDEX /*i*/tc_url_idx
ON /*_*/transcache (tc_url
);
1153 CREATE TABLE /*_*/logging (
1154 -- Log ID, for referring to this specific log entry, probably for deletion and such.
1155 log_id
int unsigned
NOT NULL PRIMARY KEY AUTO_INCREMENT
,
1157 -- Symbolic keys for the general log type and the action type
1158 -- within the log. The output format will be controlled by the
1159 -- action field, but only the type controls categorization.
1160 log_type
varbinary(32) NOT NULL default '',
1161 log_action
varbinary(32) NOT NULL default '',
1164 log_timestamp
binary(14) NOT NULL default '19700101000000',
1166 -- The user who performed this action; key to user_id
1167 log_user
int unsigned
NOT NULL default 0,
1169 -- Name of the user who performed this action
1170 log_user_text
varchar(255) binary NOT NULL default '',
1172 -- Key to the page affected. Where a user is the target,
1173 -- this will point to the user page.
1174 log_namespace
int NOT NULL default 0,
1175 log_title
varchar(255) binary NOT NULL default '',
1176 log_page
int unsigned
NULL,
1178 -- Freeform text. Interpreted as edit history comments.
1179 log_comment
varchar(255) NOT NULL default '',
1181 -- LF separated list of miscellaneous parameters
1182 log_params
blob NOT NULL,
1184 -- rev_deleted for logs
1185 log_deleted tinyint unsigned
NOT NULL default 0
1186 ) /*$wgDBTableOptions*/;
1188 CREATE INDEX /*i*/type_time
ON /*_*/logging (log_type
, log_timestamp
);
1189 CREATE INDEX /*i*/user_time
ON /*_*/logging (log_user
, log_timestamp
);
1190 CREATE INDEX /*i*/page_time
ON /*_*/logging (log_namespace
, log_title
, log_timestamp
);
1191 CREATE INDEX /*i*/times
ON /*_*/logging (log_timestamp
);
1192 CREATE INDEX /*i*/log_user_type_time
ON /*_*/logging (log_user
, log_type
, log_timestamp
);
1193 CREATE INDEX /*i*/log_page_id_time
ON /*_*/logging (log_page
,log_timestamp
);
1196 CREATE TABLE /*_*/log_search (
1197 -- The type of ID (rev ID, log ID, rev timestamp, username)
1198 ls_field
varbinary(32) NOT NULL,
1199 -- The value of the ID
1200 ls_value
varchar(255) NOT NULL,
1202 ls_log_id
int unsigned
NOT NULL default 0
1203 ) /*$wgDBTableOptions*/;
1204 CREATE UNIQUE INDEX /*i*/ls_field_val
ON /*_*/log_search (ls_field
,ls_value
,ls_log_id
);
1205 CREATE INDEX /*i*/ls_log_id
ON /*_*/log_search (ls_log_id
);
1208 CREATE TABLE /*_*/trackbacks (
1209 tb_id
int PRIMARY KEY AUTO_INCREMENT
,
1210 tb_page
int REFERENCES /*_*/page(page_id
) ON DELETE CASCADE,
1211 tb_title
varchar(255) NOT NULL,
1212 tb_url
blob NOT NULL,
1214 tb_name
varchar(255)
1215 ) /*$wgDBTableOptions*/;
1216 CREATE INDEX /*i*/tb_page
ON /*_*/trackbacks (tb_page
);
1219 -- Jobs performed by parallel apache threads or a command-line daemon
1220 CREATE TABLE /*_*/job (
1221 job_id
int unsigned
NOT NULL PRIMARY KEY AUTO_INCREMENT
,
1224 -- Limited to 60 to prevent key length overflow
1225 job_cmd
varbinary(60) NOT NULL default '',
1227 -- Namespace and title to act on
1228 -- Should be 0 and '' if the command does not operate on a title
1229 job_namespace
int NOT NULL,
1230 job_title
varchar(255) binary NOT NULL,
1232 -- Any other parameters to the command
1233 -- Stored as a PHP serialized array, or an empty string if there are no parameters
1234 job_params
blob NOT NULL
1235 ) /*$wgDBTableOptions*/;
1237 CREATE INDEX /*i*/job_cmd
ON /*_*/job (job_cmd
, job_namespace
, job_title
, job_params(128));
1240 -- Details of updates to cached special pages
1241 CREATE TABLE /*_*/querycache_info (
1242 -- Special page name
1243 -- Corresponds to a qc_type value
1244 qci_type
varbinary(32) NOT NULL default '',
1246 -- Timestamp of last update
1247 qci_timestamp
binary(14) NOT NULL default '19700101000000'
1248 ) /*$wgDBTableOptions*/;
1250 CREATE UNIQUE INDEX /*i*/qci_type
ON /*_*/querycache_info (qci_type
);
1253 -- For each redirect, this table contains exactly one row defining its target
1254 CREATE TABLE /*_*/redirect (
1255 -- Key to the page_id of the redirect page
1256 rd_from
int unsigned
NOT NULL default 0 PRIMARY KEY,
1258 -- Key to page_namespace/page_title of the target page.
1259 -- The target page may or may not exist, and due to renames
1260 -- and deletions may refer to different page records as time
1262 rd_namespace
int NOT NULL default 0,
1263 rd_title
varchar(255) binary NOT NULL default '',
1264 rd_interwiki
varchar(32) default NULL,
1265 rd_fragment
varchar(255) binary default NULL
1266 ) /*$wgDBTableOptions*/;
1268 CREATE INDEX /*i*/rd_ns_title
ON /*_*/redirect (rd_namespace
,rd_title
,rd_from
);
1271 -- Used for caching expensive grouped queries that need two links (for example double-redirects)
1272 CREATE TABLE /*_*/querycachetwo (
1273 -- A key name, generally the base name of of the special page.
1274 qcc_type
varbinary(32) NOT NULL,
1276 -- Some sort of stored value. Sizes, counts...
1277 qcc_value
int unsigned
NOT NULL default 0,
1279 -- Target namespace+title
1280 qcc_namespace
int NOT NULL default 0,
1281 qcc_title
varchar(255) binary NOT NULL default '',
1283 -- Target namespace+title2
1284 qcc_namespacetwo
int NOT NULL default 0,
1285 qcc_titletwo
varchar(255) binary NOT NULL default ''
1286 ) /*$wgDBTableOptions*/;
1288 CREATE INDEX /*i*/qcc_type
ON /*_*/querycachetwo (qcc_type
,qcc_value
);
1289 CREATE INDEX /*i*/qcc_title
ON /*_*/querycachetwo (qcc_type
,qcc_namespace
,qcc_title
);
1290 CREATE INDEX /*i*/qcc_titletwo
ON /*_*/querycachetwo (qcc_type
,qcc_namespacetwo
,qcc_titletwo
);
1293 -- Used for storing page restrictions (i.e. protection levels)
1294 CREATE TABLE /*_*/page_restrictions (
1295 -- Page to apply restrictions to (Foreign Key to page).
1296 pr_page
int NOT NULL,
1297 -- The protection type (edit, move, etc)
1298 pr_type
varbinary(60) NOT NULL,
1299 -- The protection level (Sysop, autoconfirmed, etc)
1300 pr_level
varbinary(60) NOT NULL,
1301 -- Whether or not to cascade the protection down to pages transcluded.
1302 pr_cascade tinyint
NOT NULL,
1303 -- Field for future support of per-user restriction.
1305 -- Field for time-limited protection.
1306 pr_expiry
varbinary(14) NULL,
1307 -- Field for an ID for this restrictions row (sort-key for Special:ProtectedPages)
1308 pr_id
int unsigned
NOT NULL PRIMARY KEY AUTO_INCREMENT
1309 ) /*$wgDBTableOptions*/;
1311 CREATE UNIQUE INDEX /*i*/pr_pagetype
ON /*_*/page_restrictions (pr_page
,pr_type
);
1312 CREATE INDEX /*i*/pr_typelevel
ON /*_*/page_restrictions (pr_type
,pr_level
);
1313 CREATE INDEX /*i*/pr_level
ON /*_*/page_restrictions (pr_level
);
1314 CREATE INDEX /*i*/pr_cascade
ON /*_*/page_restrictions (pr_cascade
);
1317 -- Protected titles - nonexistent pages that have been protected
1318 CREATE TABLE /*_*/protected_titles (
1319 pt_namespace
int NOT NULL,
1320 pt_title
varchar(255) binary NOT NULL,
1321 pt_user
int unsigned
NOT NULL,
1323 pt_timestamp
binary(14) NOT NULL,
1324 pt_expiry
varbinary(14) NOT NULL default '',
1325 pt_create_perm
varbinary(60) NOT NULL
1326 ) /*$wgDBTableOptions*/;
1328 CREATE UNIQUE INDEX /*i*/pt_namespace_title
ON /*_*/protected_titles (pt_namespace
,pt_title
);
1329 CREATE INDEX /*i*/pt_timestamp
ON /*_*/protected_titles (pt_timestamp
);
1332 -- Name/value pairs indexed by page_id
1333 CREATE TABLE /*_*/page_props (
1334 pp_page
int NOT NULL,
1335 pp_propname
varbinary(60) NOT NULL,
1336 pp_value
blob NOT NULL
1337 ) /*$wgDBTableOptions*/;
1339 CREATE UNIQUE INDEX /*i*/pp_page_propname
ON /*_*/page_props (pp_page
,pp_propname
);
1342 -- A table to log updates, one text key row per update.
1343 CREATE TABLE /*_*/updatelog (
1344 ul_key
varchar(255) NOT NULL PRIMARY KEY,
1346 ) /*$wgDBTableOptions*/;
1349 -- A table to track tags for revisions, logs and recent changes.
1350 CREATE TABLE /*_*/change_tag (
1351 -- RCID for the change
1353 -- LOGID for the change
1355 -- REVID for the change
1358 ct_tag
varchar(255) NOT NULL,
1359 -- Parameters for the tag, presently unused
1361 ) /*$wgDBTableOptions*/;
1363 CREATE UNIQUE INDEX /*i*/change_tag_rc_tag
ON /*_*/change_tag (ct_rc_id
,ct_tag
);
1364 CREATE UNIQUE INDEX /*i*/change_tag_log_tag
ON /*_*/change_tag (ct_log_id
,ct_tag
);
1365 CREATE UNIQUE INDEX /*i*/change_tag_rev_tag
ON /*_*/change_tag (ct_rev_id
,ct_tag
);
1366 -- Covering index, so we can pull all the info only out of the index.
1367 CREATE INDEX /*i*/change_tag_tag_id
ON /*_*/change_tag (ct_tag
,ct_rc_id
,ct_rev_id
,ct_log_id
);
1370 -- Rollup table to pull a LIST of tags simply without ugly GROUP_CONCAT
1371 -- that only works on MySQL 4.1+
1372 CREATE TABLE /*_*/tag_summary (
1373 -- RCID for the change
1375 -- LOGID for the change
1377 -- REVID for the change
1379 -- Comma-separated list of tags
1380 ts_tags
blob NOT NULL
1381 ) /*$wgDBTableOptions*/;
1383 CREATE UNIQUE INDEX /*i*/tag_summary_rc_id
ON /*_*/tag_summary (ts_rc_id
);
1384 CREATE UNIQUE INDEX /*i*/tag_summary_log_id
ON /*_*/tag_summary (ts_log_id
);
1385 CREATE UNIQUE INDEX /*i*/tag_summary_rev_id
ON /*_*/tag_summary (ts_rev_id
);
1388 CREATE TABLE /*_*/valid_tag (
1389 vt_tag
varchar(255) NOT NULL PRIMARY KEY
1390 ) /*$wgDBTableOptions*/;
1392 -- Table for storing localisation data
1393 CREATE TABLE /*_*/l10n_cache (
1395 lc_lang
varbinary(32) NOT NULL,
1397 lc_key
varchar(255) NOT NULL,
1399 lc_value mediumblob
NOT NULL
1400 ) /*$wgDBTableOptions*/;
1401 CREATE INDEX /*i*/lc_lang_key
ON /*_*/l10n_cache (lc_lang
, lc_key
);
1403 -- vim: sw=2 sts=2 et