Database dumps/database layout

'''This description is part of the Mediawiki software. Thus, it is GPL licensed, but not under CC by-sa 1.0.'''

---

-- SQL to create the initial tables for the MediaWiki database. -- This is read and executed by the install script; you should -- not have to run it by itself unless doing a manual install.

-- -- General notes: -- -- If possible, create tables as InnoDB to benefit from the -- superior resiliency against crashes and ability to read -- during writes (and write during reads!) -- -- Only the 'searchindex' table requires MyISAM due to the -- requirement for fulltext index support, which is missing -- from InnoDB. -- -- -- The MySQL table backend for MediaWiki currently uses -- 14-character CHAR or VARCHAR fields to store timestamps. -- The format is YYYYMMDDHHMMSS, which is derived from the -- text format of MySQL's TIMESTAMP fields. -- -- Historically TIMESTAMP fields were used, but abandoned -- in early 2002 after a lot of trouble with the fields -- auto-updating. -- -- The PostgreSQL backend uses DATETIME fields for timestamps, -- and we will migrate the MySQL definitions at some point as -- well. -- -- -- The /*$wgDBprefix*/ comments in this and other files are -- replaced with the defined table prefix by the installer -- and updater scripts. If you are installing or running -- updates manually, you will need to manually insert the -- table prefix if any when running these scripts. --

-- -- The user table contains basic account information, -- authentication keys, etc. -- -- Some multi-wiki sites may share a single central user table -- between separate wikis using the $wgSharedDB setting. -- -- Note that when a external authentication plugin is used, -- user table entries still need to be created to store -- preferences and to key tracking information in the other -- tables. -- CREATE TABLE /*$wgDBprefix*/user ( user_id int(5) unsigned NOT NULL auto_increment,

-- Usernames must be unique, must not be in the form of -- an IP address. _Shouldn't_ allow slashes or case -- conflicts. Spaces are allowed, and are _not_ converted -- to underscores like titles. See the User::newFromName for -- the specific tests that usernames have to pass. user_name varchar(255) binary NOT NULL default '',

-- Optional 'real name' to be displayed in credit listings user_real_name varchar(255) binary NOT NULL default '',

-- Password hashes, normally hashed like so: -- MD5(CONCAT(user_id,'-',MD5(plaintext_password))), see -- wfEncryptPassword in GlobalFunctions.php user_password tinyblob NOT NULL default '',

-- When using 'mail me a new password', a random -- password is generated and the hash stored here. -- The previous password is left in place until -- someone actually logs in with the new password, -- at which point the hash is moved to user_password -- and the old password is invalidated. user_newpassword tinyblob NOT NULL default '',

-- Note: email should be restricted, not public info. -- Same with passwords. user_email tinytext NOT NULL default '',

-- Newline-separated list of name=value defining the user -- preferences user_options blob NOT NULL default '',

-- This is a timestamp which is updated when a user -- logs in, logs out, changes preferences, or performs -- some other action requiring HTML cache invalidation -- to ensure that the UI is updated. user_touched char(14) binary NOT NULL default '',

-- A pseudorandomly generated value that is stored in -- a cookie when the "remember password" feature is  -- used (previously, a hash of the password was used, but  -- this was vulnerable to cookie-stealing attacks) user_token char(32) binary NOT NULL default '',

-- Initially NULL; when a user's e-mail address has been -- validated by returning with a mailed token, this is -- set to the current timestamp. user_email_authenticated CHAR(14) BINARY,

-- Randomly generated token created when the e-mail address -- is set and a confirmation test mail sent. user_email_token CHAR(32) BINARY,

-- Expiration date for the user_email_token user_email_token_expires CHAR(14) BINARY,

-- Timestamp of account registration. -- Accounts predating this schema addition may contain NULL. user_registration CHAR(14) BINARY,

PRIMARY KEY user_id (user_id), UNIQUE INDEX user_name (user_name), INDEX (user_email_token)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- User permissions have been broken out to a separate table; -- this allows sites with a shared user table to have different -- permissions assigned to a user in each project. -- -- This table replaces the old user_rights field which used a -- comma-separated blob. -- CREATE TABLE /*$wgDBprefix*/user_groups ( -- Key to user_id  ug_user int(5) unsigned NOT NULL default '0',

-- Group names are short symbolic string keys. -- The set of group names is open-ended, though in practice -- only some predefined ones are likely to be used. -- -- At runtime $wgGroupPermissions will associate group keys -- with particular permissions. A user will have the combined -- permissions of any group they're explicitly in, plus -- the implicit '*' and 'user' groups. ug_group char(16) NOT NULL default '',

PRIMARY KEY (ug_user,ug_group), KEY (ug_group) ) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- Stores notifications of user talk page changes, for the display -- of the "you have new messages" box CREATE TABLE /*$wgDBprefix*/user_newtalk ( -- Key to user.user_id  user_id int(5) NOT NULL default '0',  -- If the user is an anonymous user hir IP address is stored here  -- since the user_id of 0 is ambiguous  user_ip varchar(40) NOT NULL default '',  INDEX user_id (user_id),  INDEX user_ip (user_ip) ) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Core of the wiki: each page has an entry here which identifies -- it by title and contains some essential metadata. -- CREATE TABLE /*$wgDBprefix*/page ( -- Unique identifier number. The page_id will be preserved across  -- edits and rename operations, but not deletions and recreations.  page_id int(8) unsigned NOT NULL auto_increment,

-- A page name is broken into a namespace and a title. -- The namespace keys are UI-language-independent constants, -- defined in includes/Defines.php page_namespace int NOT NULL,

-- The rest of the title, as text. -- Spaces are transformed into underscores in title storage. page_title varchar(255) binary NOT NULL,

-- Comma-separated set of permission keys indicating who -- can move or edit the page. page_restrictions tinyblob NOT NULL default '',

-- Number of times this page has been viewed. page_counter bigint(20) unsigned NOT NULL default '0',

-- 1 indicates the article is a redirect. page_is_redirect tinyint(1) unsigned NOT NULL default '0',

-- 1 indicates this is a new entry, with only one edit. -- Not all pages with one edit are new pages. page_is_new tinyint(1) unsigned NOT NULL default '0',

-- Random value between 0 and 1, used for Special:Randompage page_random real unsigned NOT NULL,

-- This timestamp is updated whenever the page changes in -- a way requiring it to be re-rendered, invalidating caches. -- Aside from editing this includes permission changes, -- creation or deletion of linked pages, and alteration -- of contained templates. page_touched char(14) binary NOT NULL default '',

-- Handy key to revision.rev_id of the current revision. -- This may be 0 during page creation, but that shouldn't -- happen outside of a transaction... hopefully. page_latest int(8) unsigned NOT NULL,

-- Uncompressed length in bytes of the page's current source text. page_len int(8) unsigned NOT NULL,

PRIMARY KEY page_id (page_id), UNIQUE INDEX name_title (page_namespace,page_title),

-- Special-purpose indexes INDEX (page_random), INDEX (page_len)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Every edit of a page creates also a revision row. -- This stores metadata about the revision, and a reference -- to the text storage backend. -- CREATE TABLE /*$wgDBprefix*/revision ( rev_id int(8) unsigned NOT NULL auto_increment,

-- Key to page_id. This should _never_ be invalid. rev_page int(8) unsigned NOT NULL,

-- Key to text.old_id, where the actual bulk text is stored. -- It's possible for multiple revisions to use the same text, -- for instance revisions where only metadata is altered -- or a rollback to a previous version. rev_text_id int(8) unsigned NOT NULL,

-- Text comment summarizing the change. -- This text is shown in the history and other changes lists, -- rendered in a subset of wiki markup by Linker::formatComment rev_comment tinyblob NOT NULL default '',

-- Key to user.user_id of the user who made this edit. -- Stores 0 for anonymous edits and for some mass imports. rev_user int(5) unsigned NOT NULL default '0',

-- Text username or IP address of the editor. rev_user_text varchar(255) binary NOT NULL default '',

-- Timestamp rev_timestamp char(14) binary NOT NULL default '',

-- Records whether the user marked the 'minor edit' checkbox. -- Many automated edits are marked as minor. rev_minor_edit tinyint(1) unsigned NOT NULL default '0',

-- Not yet used; reserved for future changes to the deletion system. rev_deleted tinyint(1) unsigned NOT NULL default '0',

PRIMARY KEY rev_page_id (rev_page, rev_id), UNIQUE INDEX rev_id (rev_id), INDEX rev_timestamp (rev_timestamp), INDEX page_timestamp (rev_page,rev_timestamp), INDEX user_timestamp (rev_user,rev_timestamp), INDEX usertext_timestamp (rev_user_text,rev_timestamp)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Holds text of individual page revisions. -- -- Field names are a holdover from the 'old' revisions table in -- MediaWiki 1.4 and earlier: an upgrade will transform that -- table into the 'text' table to minimize unnecessary churning -- and downtime. If upgrading, the other fields will be left unused. -- CREATE TABLE /*$wgDBprefix*/text ( -- Unique text storage key number.  -- Note that the 'oldid' parameter used in URLs does *not*  -- refer to this number anymore, but to rev_id.  --  -- revision.rev_text_id is a key to this column  old_id int(8) unsigned NOT NULL auto_increment,

-- Depending on the contents of the old_flags field, the text -- may be convenient plain text, or it may be funkily encoded. old_text mediumblob NOT NULL default '',

-- Comma-separated list of flags: -- gzip: text is compressed with PHP's gzdeflate function. -- utf8: text was stored as UTF-8. --      If $wgLegacyEncoding option is on, rows *without* this flag --      will be converted to UTF-8 transparently at load time. -- object: text field contained a serialized PHP object. --        The object either contains multiple versions compressed --        together to achieve a better compression ratio, or it refers --        to another row where the text can be found. old_flags tinyblob NOT NULL default '',

PRIMARY KEY old_id (old_id)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Holding area for deleted articles, which may be viewed -- or restored by admins through the Special:Undelete interface. -- The fields generally correspond to the page, revision, and text -- fields, with several caveats. -- CREATE TABLE /*$wgDBprefix*/archive ( ar_namespace int NOT NULL default '0',  ar_title varchar(255) binary NOT NULL default '',

-- Newly deleted pages will not store text in this table, -- but will reference the separately existing text rows. -- This field is retained for backwards compatibility, -- so old archived pages will remain accessible after -- upgrading from 1.4 to 1.5. -- Text may be gzipped or otherwise funky. ar_text mediumblob NOT NULL default '',

-- Basic revision stuff... ar_comment tinyblob NOT NULL default '', ar_user int(5) unsigned NOT NULL default '0', ar_user_text varchar(255) binary NOT NULL, ar_timestamp char(14) binary NOT NULL default '', ar_minor_edit tinyint(1) NOT NULL default '0',

-- See ar_text note. ar_flags tinyblob NOT NULL default '',

-- When revisions are deleted, their unique rev_id is stored -- here so it can be retained after undeletion. This is necessary -- to retain permalinks to given revisions after accidental delete -- cycles or messy operations like history merges. -- -- Old entries from 1.4 will be NULL here, and a new rev_id will -- be created on undeletion for those revisions. ar_rev_id int(8) unsigned,

-- For newly deleted revisions, this is the text.old_id key to the -- actual stored text. To avoid breaking the block-compression scheme -- and otherwise making storage changes harder, the actual text is -- *not* deleted from the text table, merely hidden by removal of the -- page and revision entries. -- -- Old entries deleted under 1.2-1.4 will have NULL here, and their -- ar_text and ar_flags fields will be used to create a new text -- row upon undeletion. ar_text_id int(8) unsigned,

KEY name_title_timestamp (ar_namespace,ar_title,ar_timestamp)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Track page-to-page hyperlinks within the wiki. -- CREATE TABLE /*$wgDBprefix*/pagelinks ( -- Key to the page_id of the page containing the link.  pl_from int(8) unsigned NOT NULL default '0',

-- Key to page_namespace/page_title of the target page. -- The target page may or may not exist, and due to renames -- and deletions may refer to different page records as time -- goes by. pl_namespace int NOT NULL default '0', pl_title varchar(255) binary NOT NULL default '',

UNIQUE KEY pl_from(pl_from,pl_namespace,pl_title), KEY (pl_namespace,pl_title)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Track template inclusions. -- CREATE TABLE /*$wgDBprefix*/templatelinks ( -- Key to the page_id of the page containing the link.  tl_from int(8) unsigned NOT NULL default '0',

-- Key to page_namespace/page_title of the target page. -- The target page may or may not exist, and due to renames -- and deletions may refer to different page records as time -- goes by. tl_namespace int NOT NULL default '0', tl_title varchar(255) binary NOT NULL default '',

UNIQUE KEY tl_from(tl_from,tl_namespace,tl_title), KEY (tl_namespace,tl_title)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Track links to images *used inline* -- We don't distinguish live from broken links here, so -- they do not need to be changed on upload/removal. -- CREATE TABLE /*$wgDBprefix*/imagelinks ( -- Key to page_id of the page containing the image / media link.  il_from int(8) unsigned NOT NULL default '0',

-- Filename of target image. -- This is also the page_title of the file's description page; -- all such pages are in namespace 6 (NS_IMAGE). il_to varchar(255) binary NOT NULL default '',

UNIQUE KEY il_from(il_from,il_to), KEY (il_to)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Track category inclusions *used inline* -- This tracks a single level of category membership -- (folksonomic tagging, really). -- CREATE TABLE /*$wgDBprefix*/categorylinks ( -- Key to page_id of the page defined as a category member.  cl_from int(8) unsigned NOT NULL default '0',

-- Name of the category. -- This is also the page_title of the category's description page; -- all such pages are in namespace 14 (NS_CATEGORY). cl_to varchar(255) binary NOT NULL default '',

-- The title of the linking page, or an optional override -- to determine sort order. Sorting is by binary order, which -- isn't always ideal, but collations seem to be an exciting -- and dangerous new world in MySQL... -- -- For MySQL 4.1+ with charset set to utf8, the sort key *index* -- needs cut to be smaller than 1024 bytes (at 3 bytes per char). -- To sort properly on the shorter key, this field needs to be -- the same shortness. cl_sortkey varchar(86) binary NOT NULL default '',

-- This isn't really used at present. Provided for an optional -- sorting method by approximate addition time. cl_timestamp timestamp NOT NULL,

UNIQUE KEY cl_from(cl_from,cl_to),

-- We always sort within a given category... KEY cl_sortkey(cl_to,cl_sortkey),

-- Not really used? KEY cl_timestamp(cl_to,cl_timestamp)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Track links to external URLs -- CREATE TABLE /*$wgDBprefix*/externallinks ( -- page_id of the referring page  el_from int(8) unsigned NOT NULL default '0',

-- The URL el_to blob NOT NULL default '',

-- In the case of HTTP URLs, this is the URL with any username or password -- removed, and with the labels in the hostname reversed and converted to -- lower case. An extra dot is added to allow for matching of either -- example.com or *.example.com in a single scan. -- Example: --     http://user:password@sub.example.com/page.html --  becomes --     http://com.example.sub./page.html -- which allows for fast searching for all pages under example.com with the -- clause: --     WHERE el_index LIKE 'http://com.example.%' el_index blob NOT NULL default '',

KEY (el_from, el_to(40)), KEY (el_to(60), el_from), KEY (el_index(60)) ) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Track interlanguage links -- CREATE TABLE /*$wgDBprefix*/langlinks ( -- page_id of the referring page  ll_from int(8) unsigned NOT NULL default '0',

-- Language code of the target ll_lang varchar(10) binary NOT NULL default '',

-- Title of the target, including namespace ll_title varchar(255) binary NOT NULL default '',

UNIQUE KEY (ll_from, ll_lang), KEY (ll_lang, ll_title) ) ENGINE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Contains a single row with some aggregate info -- on the state of the site. -- CREATE TABLE /*$wgDBprefix*/site_stats ( -- The single row should contain 1 here.  ss_row_id int(8) unsigned NOT NULL,

-- Total number of page views, if hit counters are enabled. ss_total_views bigint(20) unsigned default '0',

-- Total number of edits performed. ss_total_edits bigint(20) unsigned default '0',

-- An approximate count of pages matching the following criteria: -- * in namespace 0 -- * not a redirect -- * contains the text '[[' -- See Article::isCountable in includes/Article.php  ss_good_articles bigint(20) unsigned default '0',

-- Total pages, theoretically equal to SELECT COUNT(*) FROM page; except faster ss_total_pages bigint(20) default '-1',

-- Number of users, theoretically equal to SELECT COUNT(*) FROM user; ss_users bigint(20) default '-1',

-- Deprecated, no longer updated as of 1.5 ss_admins int(10) default '-1',

-- Number of images, equivalent to SELECT COUNT(*) FROM image ss_images int(10) default '0',

UNIQUE KEY ss_row_id (ss_row_id)

) TYPE=InnoDB;

-- -- Stores an ID for every time any article is visited; -- depending on $wgHitcounterUpdateFreq, it is -- periodically cleared and the page_counter column -- in the page table updated for the all articles -- that have been visited.) -- CREATE TABLE /*$wgDBprefix*/hitcounter ( hc_id INTEGER UNSIGNED NOT NULL ) TYPE=HEAP MAX_ROWS=25000;

-- -- The internet is full of jerks, alas. Sometimes it's handy -- to block a vandal or troll account. -- CREATE TABLE /*$wgDBprefix*/ipblocks ( -- Primary key, introduced for privacy.  ipb_id int(8) NOT NULL auto_increment,

-- Blocked IP address in dotted-quad form or user name. ipb_address varchar(40) binary NOT NULL default '',

-- Blocked user ID or 0 for IP blocks. ipb_user int(8) unsigned NOT NULL default '0',

-- User ID who made the block. ipb_by int(8) unsigned NOT NULL default '0',

-- Text comment made by blocker. ipb_reason tinyblob NOT NULL default '',

-- Creation (or refresh) date in standard YMDHMS form. -- IP blocks expire automatically. ipb_timestamp char(14) binary NOT NULL default '',

-- Indicates that the IP address was banned because a banned -- user accessed a page through it. If this is 1, ipb_address -- will be hidden, and the block identified by block ID number. ipb_auto bool NOT NULL default '0',

-- If set to 1, block applies only to logged-out users ipb_anon_only bool NOT NULL default 0,

-- Block prevents account creation from matching IP addresses ipb_create_account bool NOT NULL default 1,

-- Time at which the block will expire. ipb_expiry char(14) binary NOT NULL default '',

-- Start and end of an address range, in hexadecimal -- Size chosen to allow IPv6 ipb_range_start varchar(32) NOT NULL default '', ipb_range_end varchar(32) NOT NULL default '',

PRIMARY KEY ipb_id (ipb_id),

-- Unique index to support "user already blocked" messages -- Any new options which prevent collisions should be included UNIQUE INDEX ipb_address (ipb_address(255), ipb_user, ipb_auto, ipb_anon_only),

INDEX ipb_user (ipb_user), INDEX ipb_range (ipb_range_start(8), ipb_range_end(8)), INDEX ipb_timestamp (ipb_timestamp), INDEX ipb_expiry (ipb_expiry)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Uploaded images and other files. -- CREATE TABLE /*$wgDBprefix*/image ( -- Filename.  -- This is also the title of the associated description page,  -- which will be in namespace 6 (NS_IMAGE).  img_name varchar(255) binary NOT NULL default '',

-- File size in bytes. img_size int(8) unsigned NOT NULL default '0',

-- For images, size in pixels. img_width int(5) NOT NULL default '0', img_height int(5) NOT NULL default '0',

-- Extracted EXIF metadata stored as a serialized PHP array. img_metadata mediumblob NOT NULL,

-- For images, bits per pixel if known. img_bits int(3) NOT NULL default '0',

-- Media type as defined by the MEDIATYPE_xxx constants img_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,

-- major part of a MIME media type as defined by IANA -- see http://www.iana.org/assignments/media-types/ img_major_mime ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") NOT NULL default "unknown",

-- minor part of a MIME media type as defined by IANA -- the minor parts are not required to adher to any standard -- but should be consistent throughout the database -- see http://www.iana.org/assignments/media-types/ img_minor_mime varchar(32) NOT NULL default "unknown",

-- Description field as entered by the uploader. -- This is displayed in image upload history and logs. img_description tinyblob NOT NULL default '',

-- user_id and user_name of uploader. img_user int(5) unsigned NOT NULL default '0', img_user_text varchar(255) binary NOT NULL default '',

-- Time of the upload. img_timestamp char(14) binary NOT NULL default '',

PRIMARY KEY img_name (img_name),

-- Used by Special:Imagelist for sort-by-size INDEX img_size (img_size),

-- Used by Special:Newimages and Special:Imagelist INDEX img_timestamp (img_timestamp)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Previous revisions of uploaded files. -- Awkwardly, image rows have to be moved into -- this table at re-upload time. -- CREATE TABLE /*$wgDBprefix*/oldimage ( -- Base filename: key to image.img_name  oi_name varchar(255) binary NOT NULL default '',

-- Filename of the archived file. -- This is generally a timestamp and '!' prepended to the base name. oi_archive_name varchar(255) binary NOT NULL default '',

-- Other fields as in image... oi_size int(8) unsigned NOT NULL default 0, oi_width int(5) NOT NULL default 0, oi_height int(5) NOT NULL default 0, oi_bits int(3) NOT NULL default 0, oi_description tinyblob NOT NULL default '', oi_user int(5) unsigned NOT NULL default '0', oi_user_text varchar(255) binary NOT NULL default '', oi_timestamp char(14) binary NOT NULL default '',

INDEX oi_name (oi_name(10))

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Record of deleted file data -- CREATE TABLE /*$wgDBprefix*/filearchive ( -- Unique row id  fa_id int not null auto_increment,

-- Original base filename; key to image.img_name, page.page_title, etc fa_name varchar(255) binary NOT NULL default '',

-- Filename of archived file, if an old revision fa_archive_name varchar(255) binary default '',

-- Which storage bin (directory tree or object store) the file data -- is stored in. Should be 'deleted' for files that have been deleted; -- any other bin is not yet in use. fa_storage_group varchar(16),

-- SHA-1 of the file contents plus extension, used as a key for storage. -- eg 8f8a562add37052a1848ff7771a2c515db94baa9.jpg -- -- If NULL, the file was missing at deletion time or has been purged -- from the archival storage. fa_storage_key varchar(64) binary default '',

-- Deletion information, if this file is deleted. fa_deleted_user int, fa_deleted_timestamp char(14) binary default '', fa_deleted_reason text,

-- Duped fields from image fa_size int(8) unsigned default '0', fa_width int(5) default '0', fa_height int(5) default '0', fa_metadata mediumblob, fa_bits int(3) default '0', fa_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL, fa_major_mime ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") default "unknown", fa_minor_mime varchar(32) default "unknown", fa_description tinyblob default '', fa_user int(5) unsigned default '0', fa_user_text varchar(255) binary default '', fa_timestamp char(14) binary default '',

PRIMARY KEY (fa_id), INDEX (fa_name, fa_timestamp),            -- pick out by image name INDEX (fa_storage_group, fa_storage_key), -- pick out dupe files INDEX (fa_deleted_timestamp),             -- sort by deletion time INDEX (fa_deleted_user)                   -- sort by deleter

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Primarily a summary table for Special:Recentchanges, -- this table contains some additional info on edits from -- the last few days, see Article::editUpdates -- CREATE TABLE /*$wgDBprefix*/recentchanges ( rc_id int(8) NOT NULL auto_increment,  rc_timestamp varchar(14) binary NOT NULL default ,  rc_cur_time varchar(14) binary NOT NULL default ,

-- As in revision rc_user int(10) unsigned NOT NULL default '0', rc_user_text varchar(255) binary NOT NULL default '',

-- When pages are renamed, their RC entries do _not_ change. rc_namespace int NOT NULL default '0', rc_title varchar(255) binary NOT NULL default '',

-- as in revision... rc_comment varchar(255) binary NOT NULL default '', rc_minor tinyint(3) unsigned NOT NULL default '0',

-- Edits by user accounts with the 'bot' rights key are -- marked with a 1 here, and will be hidden from the -- default view. rc_bot tinyint(3) unsigned NOT NULL default '0',

rc_new tinyint(3) unsigned NOT NULL default '0',

-- Key to page_id (was cur_id prior to 1.5). -- This will keep links working after moves while -- retaining the at-the-time name in the changes list. rc_cur_id int(10) unsigned NOT NULL default '0',

-- rev_id of the given revision rc_this_oldid int(10) unsigned NOT NULL default '0',

-- rev_id of the prior revision, for generating diff links. rc_last_oldid int(10) unsigned NOT NULL default '0',

-- These may no longer be used, with the new move log. rc_type tinyint(3) unsigned NOT NULL default '0', rc_moved_to_ns tinyint(3) unsigned NOT NULL default '0', rc_moved_to_title varchar(255) binary NOT NULL default '',

-- If the Recent Changes Patrol option is enabled, -- users may mark edits as having been reviewed to -- remove a warning flag on the RC list. -- A value of 1 indicates the page has been reviewed. rc_patrolled tinyint(3) unsigned NOT NULL default '0',

-- Recorded IP address the edit was made from, if the -- $wgPutIPinRC option is enabled. rc_ip char(15) NOT NULL default '',

PRIMARY KEY rc_id (rc_id), INDEX rc_timestamp (rc_timestamp), INDEX rc_namespace_title (rc_namespace, rc_title), INDEX rc_cur_id (rc_cur_id), INDEX new_name_timestamp(rc_new,rc_namespace,rc_timestamp), INDEX rc_ip (rc_ip), INDEX rc_ns_usertext ( rc_namespace, rc_user_text )

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

CREATE TABLE /*$wgDBprefix*/watchlist ( -- Key to user.user_id  wl_user int(5) unsigned NOT NULL,

-- Key to page_namespace/page_title -- Note that users may watch pages which do not exist yet, -- or existed in the past but have been deleted. wl_namespace int NOT NULL default '0', wl_title varchar(255) binary NOT NULL default '',

-- Timestamp when user was last sent a notification e-mail; -- cleared when the user visits the page. wl_notificationtimestamp varchar(14) binary,

UNIQUE KEY (wl_user, wl_namespace, wl_title), KEY namespace_title (wl_namespace,wl_title)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Used by the math module to keep track -- of previously-rendered items. -- CREATE TABLE /*$wgDBprefix*/math ( -- Binary MD5 hash of the latex fragment, used as an identifier key.  math_inputhash varbinary(16) NOT NULL,

-- Not sure what this is, exactly... math_outputhash varbinary(16) NOT NULL,

-- texvc reports how well it thinks the HTML conversion worked; -- if it's a low level the PNG rendering may be preferred. math_html_conservativeness tinyint(1) NOT NULL,

-- HTML output from texvc, if any math_html text,

-- MathML output from texvc, if any math_mathml text,

UNIQUE KEY math_inputhash (math_inputhash)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- When using the default MySQL search backend, page titles -- and text are munged to strip markup, do Unicode case folding, -- and prepare the result for MySQL's fulltext index. -- -- This table must be MyISAM; InnoDB does not support the needed -- fulltext index. -- CREATE TABLE /*$wgDBprefix*/searchindex ( -- Key to page_id  si_page int(8) unsigned NOT NULL,

-- Munged version of title si_title varchar(255) NOT NULL default '',

-- Munged version of body text si_text mediumtext NOT NULL default '',

UNIQUE KEY (si_page), FULLTEXT si_title (si_title), FULLTEXT si_text (si_text)

) TYPE=MyISAM, DEFAULT CHARSET=utf8;

-- -- Recognized interwiki link prefixes -- CREATE TABLE /*$wgDBprefix*/interwiki ( -- The interwiki prefix, (e.g. "Meatball", or the language prefix "de")  iw_prefix char(32) NOT NULL,

-- The URL of the wiki, with "$1" as a placeholder for an article name. -- Any spaces in the name will be transformed to underscores before -- insertion. iw_url char(127) NOT NULL,

-- A boolean value indicating whether the wiki is in this project -- (used, for example, to detect redirect loops) iw_local BOOL NOT NULL,

-- Boolean value indicating whether interwiki transclusions are allowed. iw_trans TINYINT(1) NOT NULL DEFAULT 0,

UNIQUE KEY iw_prefix (iw_prefix)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Used for caching expensive grouped queries -- CREATE TABLE /*$wgDBprefix*/querycache ( -- A key name, generally the base name of of the special page.  qc_type char(32) NOT NULL,

-- Some sort of stored value. Sizes, counts... qc_value int(5) unsigned NOT NULL default '0',

-- Target namespace+title qc_namespace int NOT NULL default '0', qc_title char(255) binary NOT NULL default '',

KEY (qc_type,qc_value)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- For a few generic cache operations if not using Memcached -- CREATE TABLE /*$wgDBprefix*/objectcache ( keyname char(255) binary not null default '',  value mediumblob,  exptime datetime,  unique key (keyname),  key (exptime)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- -- Cache of interwiki transclusion -- CREATE TABLE /*$wgDBprefix*/transcache (       tc_url          VARCHAR(255) NOT NULL,        tc_contents     TEXT,        tc_time         INT NOT NULL,        UNIQUE INDEX tc_url_idx(tc_url) ) TYPE=InnoDB, DEFAULT CHARSET=utf8;

CREATE TABLE /*$wgDBprefix*/logging ( -- Symbolic keys for the general log type and the action type  -- within the log. The output format will be controlled by the  -- action field, but only the type controls categorization.  log_type char(10) NOT NULL default ,  log_action char(10) NOT NULL default ,

-- Timestamp. Duh. log_timestamp char(14) NOT NULL default '19700101000000',

-- The user who performed this action; key to user_id log_user int unsigned NOT NULL default 0,

-- Key to the page affected. Where a user is the target, -- this will point to the user page. log_namespace int NOT NULL default 0, log_title varchar(255) binary NOT NULL default '',

-- Freeform text. Interpreted as edit history comments. log_comment varchar(255) NOT NULL default '',

-- LF separated list of miscellaneous parameters log_params blob NOT NULL default '',

KEY type_time (log_type, log_timestamp), KEY user_time (log_user, log_timestamp), KEY page_time (log_namespace, log_title, log_timestamp)

) TYPE=InnoDB, DEFAULT CHARSET=utf8;

CREATE TABLE /*$wgDBprefix*/trackbacks (       tb_id integer AUTO_INCREMENT PRIMARY KEY,        tb_page integer REFERENCES page(page_id) ON DELETE CASCADE,        tb_title varchar(255) NOT NULL,        tb_url  varchar(255) NOT NULL,        tb_ex text,        tb_name varchar(255),

INDEX (tb_page) ) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- Jobs performed by parallel apache threads or a command-line daemon CREATE TABLE /*$wgDBprefix*/job ( job_id int(9) unsigned NOT NULL auto_increment,

-- Command name, currently only refreshLinks is defined job_cmd varchar(255) NOT NULL default '',

-- Namespace and title to act on -- Should be 0 and '' if the command does not operate on a title job_namespace int NOT NULL, job_title varchar(255) binary NOT NULL,

-- Any other parameters to the command -- Presently unused, format undefined job_params blob NOT NULL default '',

PRIMARY KEY job_id (job_id), KEY (job_cmd, job_namespace, job_title) ) TYPE=InnoDB, DEFAULT CHARSET=utf8;

-- Details of updates to cached special pages CREATE TABLE /*$wgDBprefix*/querycache_info (

-- Special page name -- Corresponds to a qc_type value qci_type varchar(32) NOT NULL default '',

-- Timestamp of last update qci_timestamp char(14) NOT NULL default '19700101000000',

UNIQUE KEY ( qci_type )

) TYPE=InnoDB;