MediaWiki 1.7.1 wiederhergestellt

1 files changed, 1009 insertions, 0 deletions

diff --git a/maintenance/mysql5/tables.sql b/maintenance/mysql5/tables.sql
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+-- Experimental table definitions for MySQL 4.1 and 5.0 with
+-- explicit character set support. Not fully tested, may have
+-- surprises!
+--
+-- TODO: Test various fields
+-- TODO: Anything else need to be moved to VARBINARY and BLOB?
+-- TODO: UCS-2 better than UTF-8?
+-- TODO: Find out how to get 4-byte UTF-8 chars into MySQL...
+--       An alternate UCS-2 that does UTF-16 conversion would work.
+-- TODO: Work on collation usage
+
+-- ------------------------------------------------------------
+
+-- 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 /*$wgDBprefix*/ipblocks (
+  -- Primary key, introduced for privacy.
+  ipb_id int(8) NOT NULL auto_increment,
+  
+  -- Blocked IP address in dotted-quad form or user name.
+  ipb_address varchar(40) binary NOT NULL default '',
+  
+  -- Blocked user ID or 0 for IP blocks.
+  ipb_user int(8) unsigned NOT NULL default '0',
+  
+  -- User ID who made the block.
+  ipb_by int(8) unsigned NOT NULL default '0',
+  
+  -- Text comment made by blocker.
+  ipb_reason tinyblob NOT NULL default '',
+  
+  -- Creation (or refresh) date in standard YMDHMS form.
+  -- IP blocks expire automatically.
+  ipb_timestamp char(14) binary NOT NULL default '',
+  
+  -- Indicates that the IP address was banned because a banned
+  -- user accessed a page through it. If this is 1, ipb_address
+  -- will be hidden, and the block identified by block ID number.
+  ipb_auto tinyint(1) NOT NULL default '0',
+  
+  -- Time at which the block will expire.
+  ipb_expiry char(14) binary NOT NULL default '',
+  
+  -- Start and end of an address range, in hexadecimal
+  -- Size chosen to allow IPv6
+  ipb_range_start varchar(32) NOT NULL default '',
+  ipb_range_end varchar(32) NOT NULL default '',
+
+  PRIMARY KEY ipb_id (ipb_id),
+  INDEX ipb_address (ipb_address),
+  INDEX ipb_user (ipb_user),
+  INDEX ipb_range (ipb_range_start(8), ipb_range_end(8))
+
+) TYPE=InnoDB, DEFAULT CHARSET=utf8;
+
+
+--
+-- Uploaded images and other files.
+--
+CREATE TABLE /*$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
+  -- $wgPutIPinRC option is enabled.
+  rc_ip char(15) NOT NULL default '',
+  
+  PRIMARY KEY rc_id (rc_id),
+  INDEX rc_timestamp (rc_timestamp),
+  INDEX rc_namespace_title (rc_namespace, rc_title),
+  INDEX rc_cur_id (rc_cur_id),
+  INDEX new_name_timestamp(rc_new,rc_namespace,rc_timestamp),
+  INDEX rc_ip (rc_ip)
+
+) TYPE=InnoDB, DEFAULT CHARSET=utf8;
+
+CREATE TABLE /*$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;
\ No newline at end of file