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+-- 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;
+
+--
+-- 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 $wgGroupPermissions will associate group keys
+ -- with particular permissions. A user will have the combined
+ -- permissions of any group they're explicitly in, plus
+ -- the implicit '*' and 'user' groups.
+ ug_group char(16) NOT NULL default '',
+
+ PRIMARY KEY (ug_user,ug_group),
+ KEY (ug_group)
+) TYPE=InnoDB;
+
+-- Stores notifications of user talk page changes, for the display
+-- of the "you have new messages" box
+CREATE TABLE /*$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)
+);
+
+
+--
+-- 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;
+
+--
+-- 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;
+
+
+--
+-- 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 $wgLegacyEncoding option is on, rows *without* this flag
+ -- will be converted to UTF-8 transparently at load time.
+ -- object: text field contained a serialized PHP object.
+ -- The object either contains multiple versions compressed
+ -- together to achieve a better compression ratio, or it refers
+ -- to another row where the text can be found.
+ old_flags tinyblob NOT NULL default '',
+
+ PRIMARY KEY old_id (old_id)
+
+) TYPE=InnoDB;
+
+--
+-- Holding area for deleted articles, which may be viewed
+-- or restored by admins through the Special:Undelete interface.
+-- The fields generally correspond to the page, revision, and text
+-- fields, with several caveats.
+--
+CREATE TABLE /*$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;
+
+
+--
+-- Track page-to-page hyperlinks within the wiki.
+--
+CREATE TABLE /*$wgDBprefix*/pagelinks (
+ -- Key to the page_id of the page containing the link.
+ pl_from int(8) unsigned NOT NULL default '0',
+
+ -- Key to page_namespace/page_title of the target page.
+ -- The target page may or may not exist, and due to renames
+ -- and deletions may refer to different page records as time
+ -- goes by.
+ pl_namespace int NOT NULL default '0',
+ pl_title varchar(255) binary NOT NULL default '',
+
+ UNIQUE KEY pl_from(pl_from,pl_namespace,pl_title),
+ KEY (pl_namespace,pl_title)
+
+) TYPE=InnoDB;
+
+
+--
+-- Track template inclusions.
+--
+CREATE TABLE /*$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;
+
+--
+-- 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 /*$wgDBprefix*/imagelinks (
+ -- Key to page_id of the page containing the image / media link.
+ il_from int(8) unsigned NOT NULL default '0',
+
+ -- Filename of target image.
+ -- This is also the page_title of the file's description page;
+ -- all such pages are in namespace 6 (NS_IMAGE).
+ il_to varchar(255) binary NOT NULL default '',
+
+ UNIQUE KEY il_from(il_from,il_to),
+ KEY (il_to)
+
+) TYPE=InnoDB;
+
+--
+-- Track category inclusions *used inline*
+-- This tracks a single level of category membership
+-- (folksonomic tagging, really).
+--
+CREATE TABLE /*$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... The sortkey is updated
+ -- if no override exists and cl_from is renamed.
+ --
+ -- 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;
+
+--
+-- Track links to external URLs
+--
+CREATE TABLE /*$wgDBprefix*/externallinks (
+ -- page_id of the referring page
+ el_from int(8) unsigned NOT NULL default '0',
+
+ -- The URL
+ el_to blob NOT NULL default '',
+
+ -- In the case of HTTP URLs, this is the URL with any username or password
+ -- removed, and with the labels in the hostname reversed and converted to
+ -- lower case. An extra dot is added to allow for matching of either
+ -- example.com or *.example.com in a single scan.
+ -- Example:
+ -- http://user:password@sub.example.com/page.html
+ -- becomes
+ -- http://com.example.sub./page.html
+ -- which allows for fast searching for all pages under example.com with the
+ -- clause:
+ -- WHERE el_index LIKE 'http://com.example.%'
+ el_index blob NOT NULL default '',
+
+ KEY (el_from, el_to(40)),
+ KEY (el_to(60), el_from),
+ KEY (el_index(60))
+) TYPE=InnoDB;
+
+--
+-- Track interlanguage links
+--
+CREATE TABLE /*$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)
+) TYPE=InnoDB;
+
+--
+-- 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 /*$wgDBprefix*/ipblocks (
+ -- Primary key, introduced for privacy.
+ ipb_id int(8) NOT NULL auto_increment,
+
+ -- Blocked IP address in dotted-quad form or user name.
+ ipb_address varchar(40) binary NOT NULL default '',
+
+ -- Blocked user ID or 0 for IP blocks.
+ ipb_user int(8) unsigned NOT NULL default '0',
+
+ -- User ID who made the block.
+ ipb_by int(8) unsigned NOT NULL default '0',
+
+ -- Text comment made by blocker.
+ ipb_reason tinyblob NOT NULL default '',
+
+ -- Creation (or refresh) date in standard YMDHMS form.
+ -- IP blocks expire automatically.
+ ipb_timestamp char(14) binary NOT NULL default '',
+
+ -- Indicates that the IP address was banned because a banned
+ -- user accessed a page through it. If this is 1, ipb_address
+ -- will be hidden, and the block identified by block ID number.
+ ipb_auto tinyint(1) NOT NULL default '0',
+
+ -- Time at which the block will expire.
+ ipb_expiry char(14) binary NOT NULL default '',
+
+ -- Start and end of an address range, in hexadecimal
+ -- Size chosen to allow IPv6
+ ipb_range_start varchar(32) NOT NULL default '',
+ ipb_range_end varchar(32) NOT NULL default '',
+
+ PRIMARY KEY ipb_id (ipb_id),
+ INDEX ipb_address (ipb_address),
+ INDEX ipb_user (ipb_user),
+ INDEX ipb_range (ipb_range_start(8), ipb_range_end(8))
+
+) TYPE=InnoDB;
+
+
+--
+-- Uploaded images and other files.
+--
+CREATE TABLE /*$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;
+
+--
+-- Previous revisions of uploaded files.
+-- Awkwardly, image rows have to be moved into
+-- this table at re-upload time.
+--
+CREATE TABLE /*$wgDBprefix*/oldimage (
+ -- Base filename: key to image.img_name
+ oi_name varchar(255) binary NOT NULL default '',
+
+ -- Filename of the archived file.
+ -- This is generally a timestamp and '!' prepended to the base name.
+ oi_archive_name varchar(255) binary NOT NULL default '',
+
+ -- Other fields as in image...
+ oi_size int(8) unsigned NOT NULL default 0,
+ oi_width int(5) NOT NULL default 0,
+ oi_height int(5) NOT NULL default 0,
+ oi_bits int(3) NOT NULL default 0,
+ oi_description tinyblob NOT NULL default '',
+ oi_user int(5) unsigned NOT NULL default '0',
+ oi_user_text varchar(255) binary NOT NULL default '',
+ oi_timestamp char(14) binary NOT NULL default '',
+
+ INDEX oi_name (oi_name(10))
+
+) TYPE=InnoDB;
+
+--
+-- Record of deleted file data
+--
+CREATE TABLE /*$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;
+
+--
+-- 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
+ -- $wgPutIPinRC option is enabled.
+ rc_ip char(15) NOT NULL default '',
+
+ PRIMARY KEY rc_id (rc_id),
+ INDEX rc_timestamp (rc_timestamp),
+ INDEX rc_namespace_title (rc_namespace, rc_title),
+ INDEX rc_cur_id (rc_cur_id),
+ INDEX new_name_timestamp(rc_new,rc_namespace,rc_timestamp),
+ INDEX rc_ip (rc_ip)
+
+) TYPE=InnoDB;
+
+CREATE TABLE /*$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;
+
+
+--
+-- Used by the math module to keep track
+-- of previously-rendered items.
+--
+CREATE TABLE /*$wgDBprefix*/math (
+ -- Binary MD5 hash of the latex fragment, used as an identifier key.
+ math_inputhash varchar(16) NOT NULL,
+
+ -- Not sure what this is, exactly...
+ math_outputhash varchar(16) NOT NULL,
+
+ -- texvc reports how well it thinks the HTML conversion worked;
+ -- if it's a low level the PNG rendering may be preferred.
+ math_html_conservativeness tinyint(1) NOT NULL,
+
+ -- HTML output from texvc, if any
+ math_html text,
+
+ -- MathML output from texvc, if any
+ math_mathml text,
+
+ UNIQUE KEY math_inputhash (math_inputhash)
+
+) TYPE=InnoDB;
+
+--
+-- When using the default MySQL search backend, page titles
+-- and text are munged to strip markup, do Unicode case folding,
+-- and prepare the result for MySQL's fulltext index.
+--
+-- This table must be MyISAM; InnoDB does not support the needed
+-- fulltext index.
+--
+CREATE TABLE /*$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;
+
+--
+-- 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 "$1" as a placeholder for an article name.
+ -- Any spaces in the name will be transformed to underscores before
+ -- insertion.
+ iw_url char(127) NOT NULL,
+
+ -- A boolean value indicating whether the wiki is in this project
+ -- (used, for example, to detect redirect loops)
+ iw_local BOOL NOT NULL,
+
+ -- Boolean value indicating whether interwiki transclusions are allowed.
+ iw_trans TINYINT(1) NOT NULL DEFAULT 0,
+
+ UNIQUE KEY iw_prefix (iw_prefix)
+
+) TYPE=InnoDB;
+
+--
+-- Used for caching expensive grouped queries
+--
+CREATE TABLE /*$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;
+
+--
+-- For a few generic cache operations if not using Memcached
+--
+CREATE TABLE /*$wgDBprefix*/objectcache (
+ keyname char(255) binary not null default '',
+ value mediumblob,
+ exptime datetime,
+ unique key (keyname),
+ key (exptime)
+
+) TYPE=InnoDB;
+
+--
+-- Cache of interwiki transclusion
+--
+CREATE TABLE /*$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;
+
+CREATE TABLE /*$wgDBprefix*/logging (
+ -- Symbolic keys for the general log type and the action type
+ -- within the log. The output format will be controlled by the
+ -- action field, but only the type controls categorization.
+ log_type char(10) NOT NULL default '',
+ log_action char(10) NOT NULL default '',
+
+ -- Timestamp. Duh.
+ log_timestamp char(14) NOT NULL default '19700101000000',
+
+ -- The user who performed this action; key to user_id
+ log_user int unsigned NOT NULL default 0,
+
+ -- Key to the page affected. Where a user is the target,
+ -- this will point to the user page.
+ log_namespace int NOT NULL default 0,
+ log_title varchar(255) binary NOT NULL default '',
+
+ -- Freeform text. Interpreted as edit history comments.
+ log_comment varchar(255) NOT NULL default '',
+
+ -- LF separated list of miscellaneous parameters
+ log_params blob NOT NULL default '',
+
+ KEY type_time (log_type, log_timestamp),
+ KEY user_time (log_user, log_timestamp),
+ KEY page_time (log_namespace, log_title, log_timestamp),
+ KEY times (log_timestamp)
+
+) TYPE=InnoDB;
+
+CREATE TABLE /*$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;
+
+
+-- Jobs performed by parallel apache threads or a command-line daemon
+CREATE TABLE /*$wgDBprefix*/job (
+ job_id int(9) unsigned NOT NULL auto_increment,
+
+ -- Command name, currently only refreshLinks is defined
+ job_cmd varchar(255) NOT NULL default '',
+
+ -- Namespace and title to act on
+ -- Should be 0 and '' if the command does not operate on a title
+ job_namespace int NOT NULL,
+ job_title varchar(255) binary NOT NULL,
+
+ -- Any other parameters to the command
+ -- Presently unused, format undefined
+ job_params blob NOT NULL default '',
+
+ PRIMARY KEY job_id (job_id),
+ KEY (job_cmd, job_namespace, job_title)
+) TYPE=InnoDB;
+
+
+-- Details of updates to cached special pages
+CREATE TABLE /*$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;