-- This is read and executed by the install script; you should
-- not have to run it by itself unless doing a manual install.
+-- This is a shared schema file used for both MySQL and SQLite installs.
+--
+-- For more documentation on the database schema, see
+-- https://www.mediawiki.org/wiki/Manual:Database_layout
--
-- General notes:
--
-- in early 2002 after a lot of trouble with the fields
-- auto-updating.
--
--- The Postgres backend uses DATETIME fields for timestamps,
+-- The Postgres backend uses TIMESTAMPTZ fields for timestamps,
-- and we will migrate the MySQL definitions at some point as
-- well.
--
--
--- The /*$wgDBprefix*/ comments in this and other files are
+-- The /*_*/ comments in this and other files are
-- replaced with the defined table prefix by the installer
-- and updater scripts. If you are installing or running
-- updates manually, you will need to manually insert the
-- preferences and to key tracking information in the other
-- tables.
--
-CREATE TABLE /*$wgDBprefix*/user (
- user_id int unsigned NOT NULL auto_increment,
-
+CREATE TABLE /*_*/user (
+ user_id int unsigned NOT NULL PRIMARY KEY 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
+
+ -- Password hashes, see User::crypt() and User::comparePasswords()
+ -- in User.php for the algorithm
user_password tinyblob NOT NULL,
-
+
-- 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
-- at which point the hash is moved to user_password
-- and the old password is invalidated.
user_newpassword tinyblob NOT NULL,
-
+
-- Timestamp of the last time when a new password was
- -- sent, for throttling purposes
+ -- sent, for throttling and expiring purposes
+ -- Emailed passwords will expire $wgNewPasswordExpiry
+ -- (a week) after being set. If user_newpass_time is NULL
+ -- (eg. created by mail) it doesn't expire.
user_newpass_time binary(14),
-- Note: email should be restricted, not public info.
-- Same with passwords.
user_email tinytext NOT NULL,
-
- -- Newline-separated list of name=value defining the user
- -- preferences
- user_options blob NOT NULL,
-
- -- 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.
+
+ -- If the browser sends an If-Modified-Since header, a 304 response is
+ -- suppressed if the value in this field for the current user is later than
+ -- the value in the IMS header. That is, this field is an invalidation timestamp
+ -- for the browser cache of logged-in users. Among other things, it is used
+ -- to prevent pages generated for a previously logged in user from being
+ -- displayed after a session expiry followed by a fresh login.
user_touched binary(14) 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 binary(32) 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 binary(14),
-
+
-- Randomly generated token created when the e-mail address
-- is set and a confirmation test mail sent.
user_email_token binary(32),
-
+
-- Expiration date for the user_email_token
user_email_token_expires binary(14),
-
+
-- Timestamp of account registration.
-- Accounts predating this schema addition may contain NULL.
user_registration binary(14),
-
+
-- Count of edits and edit-like actions.
--
-- *NOT* intended to be an accurate copy of COUNT(*) WHERE rev_user=user_id
--
user_editcount int,
- PRIMARY KEY user_id (user_id),
- UNIQUE INDEX user_name (user_name),
- INDEX (user_email_token)
+ -- Expiration date for user password.
+ user_password_expires varbinary(14) DEFAULT NULL
) /*$wgDBTableOptions*/;
+CREATE UNIQUE INDEX /*i*/user_name ON /*_*/user (user_name);
+CREATE INDEX /*i*/user_email_token ON /*_*/user (user_email_token);
+CREATE INDEX /*i*/user_email ON /*_*/user (user_email(50));
+
+
--
-- User permissions have been broken out to a separate table;
-- this allows sites with a shared user table to have different
-- This table replaces the old user_rights field which used a
-- comma-separated blob.
--
-CREATE TABLE /*$wgDBprefix*/user_groups (
+CREATE TABLE /*_*/user_groups (
-- Key to user_id
- ug_user int unsigned NOT NULL default '0',
-
+ ug_user int unsigned NOT NULL default 0,
+
-- Group names are short symbolic string keys.
-- The set of group names is open-ended, though in practice
-- only some predefined ones are likely to be used.
-- with particular permissions. A user will have the combined
-- permissions of any group they're explicitly in, plus
-- the implicit '*' and 'user' groups.
- ug_group varbinary(16) NOT NULL default '',
-
- PRIMARY KEY (ug_user,ug_group),
- KEY (ug_group)
+ ug_group varbinary(255) NOT NULL default '',
+
+ -- Time at which the user group membership will expire. Set to
+ -- NULL for a non-expiring (infinite) membership.
+ ug_expiry varbinary(14) NULL default NULL,
+
+ PRIMARY KEY (ug_user, ug_group)
) /*$wgDBTableOptions*/;
+CREATE INDEX /*i*/ug_group ON /*_*/user_groups (ug_group);
+CREATE INDEX /*i*/ug_expiry ON /*_*/user_groups (ug_expiry);
+
+-- Stores the groups the user has once belonged to.
+-- The user may still belong to these groups (check user_groups).
+-- Users are not autopromoted to groups from which they were removed.
+CREATE TABLE /*_*/user_former_groups (
+ -- Key to user_id
+ ufg_user int unsigned NOT NULL default 0,
+ ufg_group varbinary(255) NOT NULL default '',
+ PRIMARY KEY (ufg_user,ufg_group)
+) /*$wgDBTableOptions*/;
+
+--
-- Stores notifications of user talk page changes, for the display
-- of the "you have new messages" box
-CREATE TABLE /*$wgDBprefix*/user_newtalk (
+--
+CREATE TABLE /*_*/user_newtalk (
-- Key to user.user_id
- user_id int NOT NULL default '0',
+ user_id int unsigned NOT NULL default 0,
-- If the user is an anonymous user their IP address is stored here
-- since the user_id of 0 is ambiguous
user_ip varbinary(40) NOT NULL default '',
-- The highest timestamp of revisions of the talk page viewed
-- by this user
- user_last_timestamp binary(14) NOT NULL default '',
- INDEX user_id (user_id),
- INDEX user_ip (user_ip)
+ user_last_timestamp varbinary(14) NULL default NULL
+) /*$wgDBTableOptions*/;
+
+-- Indexes renamed for SQLite in 1.14
+CREATE INDEX /*i*/un_user_id ON /*_*/user_newtalk (user_id);
+CREATE INDEX /*i*/un_user_ip ON /*_*/user_newtalk (user_ip);
+
+--
+-- User preferences and perhaps other fun stuff. :)
+-- Replaces the old user.user_options blob, with a couple nice properties:
+--
+-- 1) We only store non-default settings, so changes to the defauls
+-- are now reflected for everybody, not just new accounts.
+-- 2) We can more easily do bulk lookups, statistics, or modifications of
+-- saved options since it's a sane table structure.
+--
+CREATE TABLE /*_*/user_properties (
+ -- Foreign key to user.user_id
+ up_user int unsigned NOT NULL,
+
+ -- Name of the option being saved. This is indexed for bulk lookup.
+ up_property varbinary(255) NOT NULL,
+
+ -- Property value as a string.
+ up_value blob,
+ PRIMARY KEY (up_user,up_property)
) /*$wgDBTableOptions*/;
+CREATE INDEX /*i*/user_properties_property ON /*_*/user_properties (up_property);
+
+--
+-- This table contains a user's bot passwords: passwords that allow access to
+-- the account via the API with limited rights.
+--
+CREATE TABLE /*_*/bot_passwords (
+ -- User ID obtained from CentralIdLookup.
+ bp_user int unsigned NOT NULL,
+
+ -- Application identifier
+ bp_app_id varbinary(32) NOT NULL,
+
+ -- Password hashes, like user.user_password
+ bp_password tinyblob NOT NULL,
+
+ -- Like user.user_token
+ bp_token binary(32) NOT NULL default '',
+
+ -- JSON blob for MWRestrictions
+ bp_restrictions blob NOT NULL,
+
+ -- Grants allowed to the account when authenticated with this bot-password
+ bp_grants blob NOT NULL,
+
+ PRIMARY KEY ( bp_user, bp_app_id )
+) /*$wgDBTableOptions*/;
--
-- Core of the wiki: each page has an entry here which identifies
-- it by title and contains some essential metadata.
--
-CREATE TABLE /*$wgDBprefix*/page (
+CREATE TABLE /*_*/page (
-- Unique identifier number. The page_id will be preserved across
-- edits and rename operations, but not deletions and recreations.
- page_id int unsigned NOT NULL auto_increment,
-
+ page_id int unsigned NOT NULL PRIMARY KEY 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,
-
- -- Number of times this page has been viewed.
- page_counter bigint unsigned NOT NULL default '0',
-
+
-- 1 indicates the article is a redirect.
- page_is_redirect tinyint unsigned NOT NULL default '0',
-
+ page_is_redirect tinyint 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 unsigned NOT NULL default '0',
-
+ page_is_new tinyint 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,
-- of contained templates.
page_touched binary(14) NOT NULL default '',
+ -- This timestamp is updated whenever a page is re-parsed and
+ -- it has all the link tracking tables updated for it. This is
+ -- useful for de-duplicating expensive backlink update jobs.
+ page_links_updated varbinary(14) NULL default NULL,
+
-- 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 unsigned NOT NULL,
-
+
-- Uncompressed length in bytes of the page's current source text.
page_len int 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)
+ -- content model, see CONTENT_MODEL_XXX constants
+ page_content_model varbinary(32) DEFAULT NULL,
+ -- Page content language
+ page_lang varbinary(35) DEFAULT NULL
) /*$wgDBTableOptions*/;
+-- The title index. Care must be taken to always specify a namespace when
+-- by title, so that the index is used. Even listing all known namespaces
+-- with IN() is better than omitting page_namespace from the WHERE clause.
+CREATE UNIQUE INDEX /*i*/name_title ON /*_*/page (page_namespace,page_title);
+
+-- The index for Special:Random
+CREATE INDEX /*i*/page_random ON /*_*/page (page_random);
+
+-- Questionable utility, used by ProofreadPage, possibly DynamicPageList.
+-- ApiQueryAllPages unconditionally filters on namespace and so hopefully does
+-- not use it.
+CREATE INDEX /*i*/page_len ON /*_*/page (page_len);
+
+-- The index for Special:Shortpages and Special:Longpages. Also SiteStats::articles()
+-- in 'comma' counting mode, MessageCache::loadFromDB().
+CREATE INDEX /*i*/page_redirect_namespace_len ON /*_*/page (page_is_redirect, page_namespace, page_len);
+
--
-- Every edit of a page creates also a revision row.
-- This stores metadata about the revision, and a reference
-- to the text storage backend.
--
-CREATE TABLE /*$wgDBprefix*/revision (
- rev_id int unsigned NOT NULL auto_increment,
-
+CREATE TABLE /*_*/revision (
+ -- Unique ID to identify each revision
+ rev_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
+
-- Key to page_id. This should _never_ be invalid.
rev_page int 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 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,
-
+
+ -- Text comment summarizing the change. Deprecated in favor of
+ -- revision_comment_temp.revcomment_comment_id.
+ rev_comment varbinary(767) 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 unsigned NOT NULL default '0',
-
+ rev_user int unsigned NOT NULL default 0,
+
-- Text username or IP address of the editor.
rev_user_text varchar(255) binary NOT NULL default '',
-
- -- Timestamp
+
+ -- Timestamp of when revision was created
rev_timestamp binary(14) NOT NULL default '',
-
+
-- Records whether the user marked the 'minor edit' checkbox.
-- Many automated edits are marked as minor.
- rev_minor_edit tinyint unsigned NOT NULL default '0',
-
- -- Not yet used; reserved for future changes to the deletion system.
- rev_deleted tinyint unsigned NOT NULL default '0',
-
+ rev_minor_edit tinyint unsigned NOT NULL default 0,
+
+ -- Restrictions on who can access this revision
+ rev_deleted tinyint unsigned NOT NULL default 0,
+
-- Length of this revision in bytes
rev_len int unsigned,
-- This field is used to add support for a tree structure (The Adjacency List Model)
rev_parent_id int unsigned default NULL,
- 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)
+ -- SHA-1 text content hash in base-36
+ rev_sha1 varbinary(32) NOT NULL default '',
+
+ -- content model, see CONTENT_MODEL_XXX constants
+ rev_content_model varbinary(32) DEFAULT NULL,
+
+ -- content format, see CONTENT_FORMAT_XXX constants
+ rev_content_format varbinary(64) DEFAULT NULL
) /*$wgDBTableOptions*/ MAX_ROWS=10000000 AVG_ROW_LENGTH=1024;
-- In case tables are created as MyISAM, use row hints for MySQL <5.0 to avoid 4GB limit
+-- The index is proposed for removal, do not use it in new code: T163532.
+-- Used for ordering revisions within a page by rev_id, which is usually
+-- incorrect, since rev_timestamp is normally the correct order. It can also
+-- be used by dumpBackup.php, if a page and rev_id range is specified.
+CREATE INDEX /*i*/rev_page_id ON /*_*/revision (rev_page, rev_id);
+
+-- Used by ApiQueryAllRevisions
+CREATE INDEX /*i*/rev_timestamp ON /*_*/revision (rev_timestamp);
+
+-- History index
+CREATE INDEX /*i*/page_timestamp ON /*_*/revision (rev_page,rev_timestamp);
+
+-- Logged-in user contributions index
+CREATE INDEX /*i*/user_timestamp ON /*_*/revision (rev_user,rev_timestamp);
+
+-- Anonymous user countributions index
+CREATE INDEX /*i*/usertext_timestamp ON /*_*/revision (rev_user_text,rev_timestamp);
+
+-- Credits index. This is scanned in order to compile credits lists for pages,
+-- in ApiQueryContributors. Also for ApiQueryRevisions if rvuser is specified
+-- and is a logged-in user.
+CREATE INDEX /*i*/page_user_timestamp ON /*_*/revision (rev_page,rev_user,rev_timestamp);
+
+--
+-- Temporary table to avoid blocking on an alter of revision.
+--
+-- On large wikis like the English Wikipedia, altering the revision table is a
+-- months-long process. This table is being created to avoid such an alter, and
+-- will be merged back into revision in the future.
+--
+CREATE TABLE /*_*/revision_comment_temp (
+ -- Key to rev_id
+ revcomment_rev int unsigned NOT NULL,
+ -- Key to comment_id
+ revcomment_comment_id bigint unsigned NOT NULL,
+ PRIMARY KEY (revcomment_rev, revcomment_comment_id)
+) /*$wgDBTableOptions*/;
+-- Ensure uniqueness
+CREATE UNIQUE INDEX /*i*/revcomment_rev ON /*_*/revision_comment_temp (revcomment_rev);
+
+--
+-- Every time an edit by a logged out user is saved,
+-- a row is created in ip_changes. This stores
+-- the IP as a hex representation so that we can more
+-- easily find edits within an IP range.
+--
+CREATE TABLE /*_*/ip_changes (
+ -- Foreign key to the revision table, also serves as the unique primary key
+ ipc_rev_id int unsigned NOT NULL PRIMARY KEY DEFAULT '0',
+
+ -- The timestamp of the revision
+ ipc_rev_timestamp binary(14) NOT NULL DEFAULT '',
+
+ -- Hex representation of the IP address, as returned by IP::toHex()
+ -- For IPv4 it will resemble: ABCD1234
+ -- For IPv6: v6-ABCD1234000000000000000000000000
+ -- BETWEEN is then used to identify revisions within a given range
+ ipc_hex varbinary(35) NOT NULL DEFAULT ''
+
+) /*$wgDBTableOptions*/;
+
+CREATE INDEX /*i*/ipc_rev_timestamp ON /*_*/ip_changes (ipc_rev_timestamp);
+CREATE INDEX /*i*/ipc_hex_time ON /*_*/ip_changes (ipc_hex,ipc_rev_timestamp);
+
--
-- Holds text of individual page revisions.
--
-- table into the 'text' table to minimize unnecessary churning
-- and downtime. If upgrading, the other fields will be left unused.
--
-CREATE TABLE /*$wgDBprefix*/text (
+CREATE TABLE /*_*/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 unsigned NOT NULL auto_increment,
-
+ old_id int unsigned NOT NULL PRIMARY KEY 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,
-
+
-- 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.
+ -- utf-8: text was stored as UTF-8.
+ -- If $wgLegacyEncoding option is on, rows *without* this flag
+ -- will be converted to UTF-8 transparently at load time. Note
+ -- that due to a bug in a maintenance script, this flag may
+ -- have been stored as 'utf8' in some cases (T18841).
-- object: text field contained a serialized PHP object.
-- The object either contains multiple versions compressed
-- together to achieve a better compression ratio, or it refers
-- to another row where the text can be found.
- old_flags tinyblob NOT NULL,
-
- PRIMARY KEY old_id (old_id)
-
+ -- external: text was stored in an external location specified by old_text.
+ -- Any additional flags apply to the data stored at that URL, not
+ -- the URL itself. The 'object' flag is *not* set for URLs of the
+ -- form 'DB://cluster/id/itemid', because the external storage
+ -- system itself decompresses these.
+ old_flags tinyblob NOT NULL
) /*$wgDBTableOptions*/ MAX_ROWS=10000000 AVG_ROW_LENGTH=10240;
-- In case tables are created as MyISAM, use row hints for MySQL <5.0 to avoid 4GB limit
+
+--
+-- Edits, blocks, and other actions typically have a textual comment describing
+-- the action. They are stored here to reduce the size of the main tables, and
+-- to allow for deduplication.
+--
+-- Deduplication is currently best-effort to avoid locking on inserts that
+-- would be required for strict deduplication. There MAY be multiple rows with
+-- the same comment_text and comment_data.
+--
+CREATE TABLE /*_*/comment (
+ -- Unique ID to identify each comment
+ comment_id bigint unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
+
+ -- Hash of comment_text and comment_data, for deduplication
+ comment_hash INT 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()
+ -- Size limits are enforced at the application level, and should
+ -- take care to crop UTF-8 strings appropriately.
+ comment_text BLOB NOT NULL,
+
+ -- JSON data, intended for localizing auto-generated comments.
+ -- This holds structured data that is intended to be used to provide
+ -- localized versions of automatically-generated comments. When not empty,
+ -- comment_text should be the generated comment localized using the wiki's
+ -- content language.
+ comment_data BLOB
+) /*$wgDBTableOptions*/;
+-- Index used for deduplication.
+CREATE INDEX /*i*/comment_hash ON /*_*/comment (comment_hash);
+
+
--
-- Holding area for deleted articles, which may be viewed
-- or restored by admins through the Special:Undelete interface.
-- The fields generally correspond to the page, revision, and text
-- fields, with several caveats.
--
-CREATE TABLE /*$wgDBprefix*/archive (
- ar_namespace int NOT NULL default '0',
+CREATE TABLE /*_*/archive (
+ -- Primary key
+ ar_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
+ 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,
-- upgrading from 1.4 to 1.5.
-- Text may be gzipped or otherwise funky.
ar_text mediumblob NOT NULL,
-
+
-- Basic revision stuff...
- ar_comment tinyblob NOT NULL,
- ar_user int unsigned NOT NULL default '0',
+ ar_comment varbinary(767) NOT NULL default '', -- Deprecated in favor of ar_comment_id
+ ar_comment_id bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that ar_comment should be used)
+ ar_user int unsigned NOT NULL default 0,
ar_user_text varchar(255) binary NOT NULL,
ar_timestamp binary(14) NOT NULL default '',
- ar_minor_edit tinyint NOT NULL default '0',
-
+ ar_minor_edit tinyint NOT NULL default 0,
+
-- See ar_text note.
ar_flags tinyblob NOT NULL,
-
+
-- 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 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
ar_text_id int unsigned,
-- rev_deleted for archives
- ar_deleted tinyint unsigned NOT NULL default '0',
+ ar_deleted tinyint unsigned NOT NULL default 0,
-- Length of this revision in bytes
ar_len int unsigned,
- -- Reference to page_id. Useful for sysadmin fixing of large pages
+ -- Reference to page_id. Useful for sysadmin fixing of large pages
-- merged together in the archives, or for cleanly restoring a page
-- at its original ID number if possible.
--
-- Will be NULL for pages deleted prior to 1.11.
ar_page_id int unsigned,
-
+
-- Original previous revision
ar_parent_id int unsigned default NULL,
-
- KEY name_title_timestamp (ar_namespace,ar_title,ar_timestamp),
- KEY usertext_timestamp (ar_user_text,ar_timestamp)
+ -- SHA-1 text content hash in base-36
+ ar_sha1 varbinary(32) NOT NULL default '',
+
+ -- content model, see CONTENT_MODEL_XXX constants
+ ar_content_model varbinary(32) DEFAULT NULL,
+
+ -- content format, see CONTENT_FORMAT_XXX constants
+ ar_content_format varbinary(64) DEFAULT NULL
) /*$wgDBTableOptions*/;
+-- Index for Special:Undelete to page through deleted revisions
+CREATE INDEX /*i*/name_title_timestamp ON /*_*/archive (ar_namespace,ar_title,ar_timestamp);
+
+-- Index for Special:DeletedContributions
+CREATE INDEX /*i*/ar_usertext_timestamp ON /*_*/archive (ar_user_text,ar_timestamp);
+
+-- Index for linking archive rows with tables that normally link with revision
+-- rows, such as change_tag.
+CREATE INDEX /*i*/ar_revid ON /*_*/archive (ar_rev_id);
+
--
-- Track page-to-page hyperlinks within the wiki.
--
-CREATE TABLE /*$wgDBprefix*/pagelinks (
+CREATE TABLE /*_*/pagelinks (
-- Key to the page_id of the page containing the link.
- pl_from int unsigned NOT NULL default '0',
-
+ pl_from int unsigned NOT NULL default 0,
+ -- Namespace for this page
+ pl_from_namespace int 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_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,pl_from)
-
+ PRIMARY KEY (pl_from,pl_namespace,pl_title)
) /*$wgDBTableOptions*/;
+-- Reverse index, for Special:Whatlinkshere
+CREATE INDEX /*i*/pl_namespace ON /*_*/pagelinks (pl_namespace,pl_title,pl_from);
+
+-- Index for Special:Whatlinkshere with namespace filter
+CREATE INDEX /*i*/pl_backlinks_namespace ON /*_*/pagelinks (pl_from_namespace,pl_namespace,pl_title,pl_from);
+
--
-- Track template inclusions.
--
-CREATE TABLE /*$wgDBprefix*/templatelinks (
+CREATE TABLE /*_*/templatelinks (
-- Key to the page_id of the page containing the link.
- tl_from int unsigned NOT NULL default '0',
-
+ tl_from int unsigned NOT NULL default 0,
+ -- Namespace for this page
+ tl_from_namespace int 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_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,tl_from)
-
+ PRIMARY KEY (tl_from,tl_namespace,tl_title)
) /*$wgDBTableOptions*/;
+-- Reverse index, for Special:Whatlinkshere
+CREATE INDEX /*i*/tl_namespace ON /*_*/templatelinks (tl_namespace,tl_title,tl_from);
+
+-- Index for Special:Whatlinkshere with namespace filter
+CREATE INDEX /*i*/tl_backlinks_namespace ON /*_*/templatelinks (tl_from_namespace,tl_namespace,tl_title,tl_from);
+
+
--
-- Track links to images *used inline*
-- We don't distinguish live from broken links here, so
-- they do not need to be changed on upload/removal.
--
-CREATE TABLE /*$wgDBprefix*/imagelinks (
+CREATE TABLE /*_*/imagelinks (
-- Key to page_id of the page containing the image / media link.
- il_from int unsigned NOT NULL default '0',
-
+ il_from int unsigned NOT NULL default 0,
+ -- Namespace for this page
+ il_from_namespace int 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_FILE).
il_to varchar(255) binary NOT NULL default '',
-
- UNIQUE KEY il_from (il_from,il_to),
- KEY (il_to,il_from)
-
+ PRIMARY KEY (il_from,il_to)
) /*$wgDBTableOptions*/;
+-- Reverse index, for Special:Whatlinkshere and file description page local usage
+CREATE INDEX /*i*/il_to ON /*_*/imagelinks (il_to,il_from);
+
+-- Index for Special:Whatlinkshere with namespace filter
+CREATE INDEX /*i*/il_backlinks_namespace ON /*_*/imagelinks (il_from_namespace,il_to,il_from);
+
+
--
-- Track category inclusions *used inline*
-- This tracks a single level of category membership
--- (folksonomic tagging, really).
--
-CREATE TABLE /*$wgDBprefix*/categorylinks (
+CREATE TABLE /*_*/categorylinks (
-- Key to page_id of the page defined as a category member.
- cl_from int unsigned NOT NULL default '0',
-
+ cl_from int 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.
- --
- -- Truncate so that the cl_sortkey key fits in 1000 bytes
- -- (MyISAM 5 with server_character_set=utf8)
- cl_sortkey varchar(70) binary NOT NULL default '',
-
+
+ -- A binary string obtained by applying a sortkey generation algorithm
+ -- (Collation::getSortKey()) to page_title, or cl_sortkey_prefix . "\n"
+ -- . page_title if cl_sortkey_prefix is nonempty.
+ cl_sortkey varbinary(230) NOT NULL default '',
+
+ -- A prefix for the raw sortkey manually specified by the user, either via
+ -- [[Category:Foo|prefix]] or {{defaultsort:prefix}}. If nonempty, it's
+ -- concatenated with a line break followed by the page title before the sortkey
+ -- conversion algorithm is run. We store this so that we can update
+ -- collations without reparsing all pages.
+ -- Note: If you change the length of this field, you also need to change
+ -- code in LinksUpdate.php. See T27254.
+ cl_sortkey_prefix varchar(255) 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,cl_from),
-
- -- Not really used?
- KEY cl_timestamp (cl_to,cl_timestamp)
+ -- Stores $wgCategoryCollation at the time cl_sortkey was generated. This
+ -- can be used to install new collation versions, tracking which rows are not
+ -- yet updated. '' means no collation, this is a legacy row that needs to be
+ -- updated by updateCollation.php. In the future, it might be possible to
+ -- specify different collations per category.
+ cl_collation varbinary(32) NOT NULL default '',
+
+ -- Stores whether cl_from is a category, file, or other page, so we can
+ -- paginate the three categories separately. This never has to be updated
+ -- after the page is created, since none of these page types can be moved to
+ -- any other.
+ cl_type ENUM('page', 'subcat', 'file') NOT NULL default 'page',
+ PRIMARY KEY (cl_from,cl_to)
) /*$wgDBTableOptions*/;
---
--- Track all existing categories. Something is a category if 1) it has an en-
--- try somewhere in categorylinks, or 2) it once did. Categories might not
--- have corresponding pages, so they need to be tracked separately.
+
+-- We always sort within a given category, and within a given type. FIXME:
+-- Formerly this index didn't cover cl_type (since that didn't exist), so old
+-- callers won't be using an index: fix this?
+CREATE INDEX /*i*/cl_sortkey ON /*_*/categorylinks (cl_to,cl_type,cl_sortkey,cl_from);
+
+-- Used by the API (and some extensions)
+CREATE INDEX /*i*/cl_timestamp ON /*_*/categorylinks (cl_to,cl_timestamp);
+
+-- Used when updating collation (e.g. updateCollation.php)
+CREATE INDEX /*i*/cl_collation_ext ON /*_*/categorylinks (cl_collation, cl_to, cl_type, cl_from);
+
+--
+-- Track all existing categories. Something is a category if 1) it has an entry
+-- somewhere in categorylinks, or 2) it has a description page. Categories
+-- might not have corresponding pages, so they need to be tracked separately.
--
-CREATE TABLE /*$wgDBprefix*/category (
+CREATE TABLE /*_*/category (
-- Primary key
- cat_id int unsigned NOT NULL auto_increment,
+ cat_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- Name of the category, in the same form as page_title (with underscores).
-- If there is a category page corresponding to this category, by definition,
-- ing is not.
cat_pages int signed NOT NULL default 0,
cat_subcats int signed NOT NULL default 0,
- cat_files int signed NOT NULL default 0,
+ cat_files int signed NOT NULL default 0
+) /*$wgDBTableOptions*/;
- -- Reserved for future use
- cat_hidden tinyint unsigned NOT NULL default 0,
-
- PRIMARY KEY (cat_id),
- UNIQUE KEY (cat_title),
+CREATE UNIQUE INDEX /*i*/cat_title ON /*_*/category (cat_title);
+
+-- For Special:Mostlinkedcategories
+CREATE INDEX /*i*/cat_pages ON /*_*/category (cat_pages);
- -- For Special:Mostlinkedcategories
- KEY (cat_pages)
-) /*$wgDBTableOptions*/;
--
-- Track links to external URLs
--
-CREATE TABLE /*$wgDBprefix*/externallinks (
+CREATE TABLE /*_*/externallinks (
+ -- Primary key
+ el_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
+
-- page_id of the referring page
- el_from int unsigned NOT NULL default '0',
+ el_from int unsigned NOT NULL default 0,
-- The URL
el_to blob NOT NULL,
-- 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
+ -- 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:
+ -- 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:
+ -- clause:
-- WHERE el_index LIKE 'http://com.example.%'
el_index blob NOT NULL,
-
- KEY (el_from, el_to(40)),
- KEY (el_to(60), el_from),
- KEY (el_index(60))
+
+ -- This is el_index truncated to 60 bytes to allow for sortable queries that
+ -- aren't supported by a partial index.
+ -- @todo Drop the default once this is deployed everywhere and code is populating it.
+ el_index_60 varbinary(60) NOT NULL default ''
) /*$wgDBTableOptions*/;
---
+-- Forward index, for page edit, save
+CREATE INDEX /*i*/el_from ON /*_*/externallinks (el_from, el_to(40));
+
+-- Index for Special:LinkSearch exact search
+CREATE INDEX /*i*/el_to ON /*_*/externallinks (el_to(60), el_from);
+
+-- For Special:LinkSearch wildcard search
+CREATE INDEX /*i*/el_index ON /*_*/externallinks (el_index(60));
+
+-- For Special:LinkSearch wildcard search with efficient paging by el_id
+CREATE INDEX /*i*/el_index_60 ON /*_*/externallinks (el_index_60, el_id);
+CREATE INDEX /*i*/el_from_index_60 ON /*_*/externallinks (el_from, el_index_60, el_id);
+
+--
-- Track interlanguage links
--
-CREATE TABLE /*$wgDBprefix*/langlinks (
+CREATE TABLE /*_*/langlinks (
-- page_id of the referring page
- ll_from int unsigned NOT NULL default '0',
-
+ ll_from int unsigned NOT NULL default 0,
+
-- Language code of the target
ll_lang varbinary(20) NOT NULL default '',
-- Title of the target, including namespace
ll_title varchar(255) binary NOT NULL default '',
+ PRIMARY KEY (ll_from,ll_lang)
+) /*$wgDBTableOptions*/;
+
+-- Index for ApiQueryLangbacklinks
+CREATE INDEX /*i*/ll_lang ON /*_*/langlinks (ll_lang, ll_title);
+
+
+--
+-- Track inline interwiki links
+--
+CREATE TABLE /*_*/iwlinks (
+ -- page_id of the referring page
+ iwl_from int unsigned NOT NULL default 0,
- UNIQUE KEY (ll_from, ll_lang),
- KEY (ll_lang, ll_title)
+ -- Interwiki prefix code of the target
+ iwl_prefix varbinary(20) NOT NULL default '',
+
+ -- Title of the target, including namespace
+ iwl_title varchar(255) binary NOT NULL default '',
+ PRIMARY KEY (iwl_from,iwl_prefix,iwl_title)
) /*$wgDBTableOptions*/;
+-- Index for ApiQueryIWBacklinks
+CREATE INDEX /*i*/iwl_prefix_title_from ON /*_*/iwlinks (iwl_prefix, iwl_title, iwl_from);
+
+-- Index for ApiQueryIWLinks
+CREATE INDEX /*i*/iwl_prefix_from_title ON /*_*/iwlinks (iwl_prefix, iwl_from, iwl_title);
+
+
--
-- Contains a single row with some aggregate info
-- on the state of the site.
--
-CREATE TABLE /*$wgDBprefix*/site_stats (
+CREATE TABLE /*_*/site_stats (
-- The single row should contain 1 here.
- ss_row_id int unsigned NOT NULL,
-
- -- Total number of page views, if hit counters are enabled.
- ss_total_views bigint unsigned default '0',
-
+ ss_row_id int unsigned NOT NULL PRIMARY KEY,
+
-- Total number of edits performed.
- ss_total_edits bigint unsigned default '0',
-
+ ss_total_edits bigint unsigned default 0,
+
-- An approximate count of pages matching the following criteria:
-- * in namespace 0
-- * not a redirect
-- * contains the text '[['
-- See Article::isCountable() in includes/Article.php
- ss_good_articles bigint unsigned default '0',
-
+ ss_good_articles bigint unsigned default 0,
+
-- Total pages, theoretically equal to SELECT COUNT(*) FROM page; except faster
ss_total_pages bigint default '-1',
-- Number of users, theoretically equal to SELECT COUNT(*) FROM user;
ss_users bigint default '-1',
-
+
-- Number of users that still edit
ss_active_users bigint default '-1',
- -- Deprecated, no longer updated as of 1.5
- ss_admins int default '-1',
-
-- Number of images, equivalent to SELECT COUNT(*) FROM image
- ss_images int default '0',
-
- UNIQUE KEY ss_row_id (ss_row_id)
-
+ ss_images int default 0
) /*$wgDBTableOptions*/;
---
--- 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 int unsigned NOT NULL
-) ENGINE=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 (
+CREATE TABLE /*_*/ipblocks (
-- Primary key, introduced for privacy.
- ipb_id int NOT NULL auto_increment,
-
+ ipb_id int NOT NULL PRIMARY KEY AUTO_INCREMENT,
+
-- Blocked IP address in dotted-quad form or user name.
ipb_address tinyblob NOT NULL,
-
+
-- Blocked user ID or 0 for IP blocks.
- ipb_user int unsigned NOT NULL default '0',
-
+ ipb_user int unsigned NOT NULL default 0,
+
-- User ID who made the block.
- ipb_by int unsigned NOT NULL default '0',
-
+ ipb_by int unsigned NOT NULL default 0,
+
-- User name of blocker
ipb_by_text varchar(255) binary NOT NULL default '',
-
- -- Text comment made by blocker.
- ipb_reason tinyblob NOT NULL,
-
+
+ -- Text comment made by blocker. Deprecated in favor of ipb_reason_id
+ ipb_reason varbinary(767) NOT NULL default '',
+
+ -- Key to comment_id. Text comment made by blocker.
+ -- ("DEFAULT 0" is temporary, signaling that ipb_reason should be used)
+ ipb_reason_id bigint unsigned NOT NULL DEFAULT 0,
+
-- Creation (or refresh) date in standard YMDHMS form.
-- IP blocks expire automatically.
ipb_timestamp binary(14) 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.
-- Block triggers autoblocks
ipb_enable_autoblock bool NOT NULL default '1',
-
+
-- Time at which the block will expire.
-- May be "infinity"
ipb_expiry varbinary(14) NOT NULL default '',
-
+
-- Start and end of an address range, in hexadecimal
-- Size chosen to allow IPv6
+ -- FIXME: these fields were originally blank for single-IP blocks,
+ -- but now they are populated. No migration was ever done. They
+ -- should be fixed to be blank again for such blocks (T51504).
ipb_range_start tinyblob NOT NULL,
ipb_range_end tinyblob NOT NULL,
-- Block prevents user from accessing Special:Emailuser
ipb_block_email bool NOT NULL default 0,
-
+
-- Block allows user to edit their own talk page
ipb_allow_usertalk bool NOT NULL default 0,
-
- 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)
+ -- ID of the block that caused this block to exist
+ -- Autoblocks set this to the original block
+ -- so that the original block being deleted also
+ -- deletes the autoblocks
+ ipb_parent_block_id int default NULL
) /*$wgDBTableOptions*/;
+-- Unique index to support "user already blocked" messages
+-- Any new options which prevent collisions should be included
+CREATE UNIQUE INDEX /*i*/ipb_address ON /*_*/ipblocks (ipb_address(255), ipb_user, ipb_auto, ipb_anon_only);
+
+-- For querying whether a logged-in user is blocked
+CREATE INDEX /*i*/ipb_user ON /*_*/ipblocks (ipb_user);
+
+-- For querying whether an IP address is in any range
+CREATE INDEX /*i*/ipb_range ON /*_*/ipblocks (ipb_range_start(8), ipb_range_end(8));
+
+-- Index for Special:BlockList
+CREATE INDEX /*i*/ipb_timestamp ON /*_*/ipblocks (ipb_timestamp);
+
+-- Index for table pruning
+CREATE INDEX /*i*/ipb_expiry ON /*_*/ipblocks (ipb_expiry);
+
+-- Index for removing autoblocks when a parent block is removed
+CREATE INDEX /*i*/ipb_parent_block_id ON /*_*/ipblocks (ipb_parent_block_id);
+
--
-- Uploaded images and other files.
--
-CREATE TABLE /*$wgDBprefix*/image (
+CREATE TABLE /*_*/image (
-- Filename.
-- This is also the title of the associated description page,
-- which will be in namespace 6 (NS_FILE).
- img_name varchar(255) binary NOT NULL default '',
-
+ img_name varchar(255) binary NOT NULL default '' PRIMARY KEY,
+
-- File size in bytes.
- img_size int unsigned NOT NULL default '0',
-
+ img_size int unsigned NOT NULL default 0,
+
-- For images, size in pixels.
- img_width int NOT NULL default '0',
- img_height int NOT NULL default '0',
-
- -- Extracted EXIF metadata stored as a serialized PHP array.
+ img_width int NOT NULL default 0,
+ img_height int 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 NOT NULL default '0',
-
+ img_bits int 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,
-
+ img_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE", "3D") 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",
-
+ -- see https://www.iana.org/assignments/media-types/
+ -- for "chemical" cf. http://dx.doi.org/10.1021/ci9803233 by the ACS
+ img_major_mime ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart", "chemical") 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 varbinary(32) NOT NULL default "unknown",
-
+ -- see https://www.iana.org/assignments/media-types/
+ img_minor_mime varbinary(100) 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,
-
+ -- Deprecated in favor of image_comment_temp.imgcomment_description_id.
+ img_description varbinary(767) NOT NULL default '',
+
-- user_id and user_name of uploader.
- img_user int unsigned NOT NULL default '0',
+ img_user int unsigned NOT NULL default 0,
img_user_text varchar(255) binary NOT NULL,
-
+
-- Time of the upload.
img_timestamp varbinary(14) NOT NULL default '',
-
- -- SHA-1 content hash in base-36
- img_sha1 varbinary(32) NOT NULL default '',
-
- PRIMARY KEY img_name (img_name),
-
- INDEX img_usertext_timestamp (img_user_text,img_timestamp),
- -- 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),
- -- Used in API and duplicate search
- INDEX img_sha1 (img_sha1)
+ -- SHA-1 content hash in base-36
+ img_sha1 varbinary(32) NOT NULL default ''
+) /*$wgDBTableOptions*/;
+-- Used by Special:Newimages and ApiQueryAllImages
+CREATE INDEX /*i*/img_user_timestamp ON /*_*/image (img_user,img_timestamp);
+CREATE INDEX /*i*/img_usertext_timestamp ON /*_*/image (img_user_text,img_timestamp);
+-- Used by Special:ListFiles for sort-by-size
+CREATE INDEX /*i*/img_size ON /*_*/image (img_size);
+-- Used by Special:Newimages and Special:ListFiles
+CREATE INDEX /*i*/img_timestamp ON /*_*/image (img_timestamp);
+-- Used in API and duplicate search
+CREATE INDEX /*i*/img_sha1 ON /*_*/image (img_sha1(10));
+-- Used to get media of one type
+CREATE INDEX /*i*/img_media_mime ON /*_*/image (img_media_type,img_major_mime,img_minor_mime);
+
+--
+-- Temporary table to avoid blocking on an alter of image.
+--
+-- On large wikis like Wikimedia Commons, altering the image table is a
+-- months-long process. This table is being created to avoid such an alter, and
+-- will be merged back into image in the future.
+--
+CREATE TABLE /*_*/image_comment_temp (
+ -- Key to img_name (ugh)
+ imgcomment_name varchar(255) binary NOT NULL,
+ -- Key to comment_id
+ imgcomment_description_id bigint unsigned NOT NULL,
+ PRIMARY KEY (imgcomment_name, imgcomment_description_id)
) /*$wgDBTableOptions*/;
+-- Ensure uniqueness
+CREATE UNIQUE INDEX /*i*/imgcomment_name ON /*_*/image_comment_temp (imgcomment_name);
+
--
-- Previous revisions of uploaded files.
-- Awkwardly, image rows have to be moved into
-- this table at re-upload time.
--
-CREATE TABLE /*$wgDBprefix*/oldimage (
+CREATE TABLE /*_*/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 unsigned NOT NULL default 0,
oi_width int NOT NULL default 0,
oi_height int NOT NULL default 0,
oi_bits int NOT NULL default 0,
- oi_description tinyblob NOT NULL,
- oi_user int unsigned NOT NULL default '0',
+ oi_description varbinary(767) NOT NULL default '', -- Deprecated.
+ oi_description_id bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that oi_description should be used)
+ oi_user int unsigned NOT NULL default 0,
oi_user_text varchar(255) binary NOT NULL,
oi_timestamp binary(14) NOT NULL default '',
oi_metadata mediumblob NOT NULL,
- oi_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,
- oi_major_mime ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") NOT NULL default "unknown",
- oi_minor_mime varbinary(32) NOT NULL default "unknown",
- oi_deleted tinyint unsigned NOT NULL default '0',
- oi_sha1 varbinary(32) NOT NULL default '',
-
- INDEX oi_usertext_timestamp (oi_user_text,oi_timestamp),
- INDEX oi_name_timestamp (oi_name,oi_timestamp),
- -- oi_archive_name truncated to 14 to avoid key length overflow
- INDEX oi_name_archive_name (oi_name,oi_archive_name(14)),
- INDEX oi_sha1 (oi_sha1)
-
+ oi_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE", "3D") default NULL,
+ oi_major_mime ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart", "chemical") NOT NULL default "unknown",
+ oi_minor_mime varbinary(100) NOT NULL default "unknown",
+ oi_deleted tinyint unsigned NOT NULL default 0,
+ oi_sha1 varbinary(32) NOT NULL default ''
) /*$wgDBTableOptions*/;
+CREATE INDEX /*i*/oi_usertext_timestamp ON /*_*/oldimage (oi_user_text,oi_timestamp);
+CREATE INDEX /*i*/oi_name_timestamp ON /*_*/oldimage (oi_name,oi_timestamp);
+-- oi_archive_name truncated to 14 to avoid key length overflow
+CREATE INDEX /*i*/oi_name_archive_name ON /*_*/oldimage (oi_name,oi_archive_name(14));
+CREATE INDEX /*i*/oi_sha1 ON /*_*/oldimage (oi_sha1(10));
+
+
--
-- Record of deleted file data
--
-CREATE TABLE /*$wgDBprefix*/filearchive (
+CREATE TABLE /*_*/filearchive (
-- Unique row id
- fa_id int NOT NULL auto_increment,
-
+ fa_id int NOT NULL PRIMARY KEY 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 varbinary(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 varbinary(64) default '',
-
+
-- Deletion information, if this file is deleted.
fa_deleted_user int,
fa_deleted_timestamp binary(14) default '',
- fa_deleted_reason text,
-
+ fa_deleted_reason varbinary(767) default '', -- Deprecated
+ fa_deleted_reason_id bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that fa_deleted_reason should be used)
+
-- Duped fields from image
- fa_size int unsigned default '0',
- fa_width int default '0',
- fa_height int default '0',
+ fa_size int unsigned default 0,
+ fa_width int default 0,
+ fa_height int default 0,
fa_metadata mediumblob,
- fa_bits int 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 varbinary(32) default "unknown",
- fa_description tinyblob,
- fa_user int unsigned default '0',
+ fa_bits int default 0,
+ fa_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE", "3D") default NULL,
+ fa_major_mime ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart", "chemical") default "unknown",
+ fa_minor_mime varbinary(100) default "unknown",
+ fa_description varbinary(767) default '', -- Deprecated
+ fa_description_id bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that fa_description should be used)
+ fa_user int unsigned default 0,
fa_user_text varchar(255) binary,
fa_timestamp binary(14) default '',
-- Visibility of deleted revisions, bitfield
- fa_deleted tinyint unsigned NOT NULL default '0',
-
- 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_user_timestamp (fa_user_text,fa_timestamp) -- sort by uploader
+ fa_deleted tinyint unsigned NOT NULL default 0,
+ -- sha1 hash of file content
+ fa_sha1 varbinary(32) NOT NULL default ''
) /*$wgDBTableOptions*/;
+-- pick out by image name
+CREATE INDEX /*i*/fa_name ON /*_*/filearchive (fa_name, fa_timestamp);
+-- pick out dupe files
+CREATE INDEX /*i*/fa_storage_group ON /*_*/filearchive (fa_storage_group, fa_storage_key);
+-- sort by deletion time
+CREATE INDEX /*i*/fa_deleted_timestamp ON /*_*/filearchive (fa_deleted_timestamp);
+-- sort by uploader
+CREATE INDEX /*i*/fa_user_timestamp ON /*_*/filearchive (fa_user_text,fa_timestamp);
+-- find file by sha1, 10 bytes will be enough for hashes to be indexed
+CREATE INDEX /*i*/fa_sha1 ON /*_*/filearchive (fa_sha1(10));
+
+
+--
+-- Store information about newly uploaded files before they're
+-- moved into the actual filestore
+--
+CREATE TABLE /*_*/uploadstash (
+ us_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
+
+ -- the user who uploaded the file.
+ us_user int unsigned NOT NULL,
+
+ -- file key. this is how applications actually search for the file.
+ -- this might go away, or become the primary key.
+ us_key varchar(255) NOT NULL,
+
+ -- the original path
+ us_orig_path varchar(255) NOT NULL,
+
+ -- the temporary path at which the file is actually stored
+ us_path varchar(255) NOT NULL,
+
+ -- which type of upload the file came from (sometimes)
+ us_source_type varchar(50),
+
+ -- the date/time on which the file was added
+ us_timestamp varbinary(14) NOT NULL,
+
+ us_status varchar(50) NOT NULL,
+
+ -- chunk counter starts at 0, current offset is stored in us_size
+ us_chunk_inx int unsigned NULL,
+
+ -- Serialized file properties from FSFile::getProps()
+ us_props blob,
+
+ -- file size in bytes
+ us_size int unsigned NOT NULL,
+ -- this hash comes from FSFile::getSha1Base36(), and is 31 characters
+ us_sha1 varchar(31) NOT NULL,
+ us_mime varchar(255),
+ -- Media type as defined by the MEDIATYPE_xxx constants, should duplicate definition in the image table
+ us_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE", "3D") default NULL,
+ -- image-specific properties
+ us_image_width int unsigned,
+ us_image_height int unsigned,
+ us_image_bits smallint unsigned
+
+) /*$wgDBTableOptions*/;
+
+-- sometimes there's a delete for all of a user's stuff.
+CREATE INDEX /*i*/us_user ON /*_*/uploadstash (us_user);
+-- pick out files by key, enforce key uniqueness
+CREATE UNIQUE INDEX /*i*/us_key ON /*_*/uploadstash (us_key);
+-- the abandoned upload cleanup script needs this
+CREATE INDEX /*i*/us_timestamp ON /*_*/uploadstash (us_timestamp);
+
+
--
-- 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 NOT NULL auto_increment,
+CREATE TABLE /*_*/recentchanges (
+ rc_id int NOT NULL PRIMARY KEY AUTO_INCREMENT,
rc_timestamp varbinary(14) NOT NULL default '',
- rc_cur_time varbinary(14) NOT NULL default '',
-
+
-- As in revision
- rc_user int unsigned NOT NULL default '0',
+ rc_user int unsigned NOT NULL default 0,
rc_user_text varchar(255) binary NOT NULL,
-
+
-- When pages are renamed, their RC entries do _not_ change.
- rc_namespace int NOT NULL default '0',
+ 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 unsigned NOT NULL default '0',
-
+ rc_comment varbinary(767) NOT NULL default '', -- Deprecated.
+ rc_comment_id bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that rc_comment should be used)
+ rc_minor tinyint 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 unsigned NOT NULL default '0',
-
- rc_new tinyint unsigned NOT NULL default '0',
-
+ rc_bot tinyint unsigned NOT NULL default 0,
+
+ -- Set if this change corresponds to a page creation
+ rc_new tinyint 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 unsigned NOT NULL default '0',
-
+ rc_cur_id int unsigned NOT NULL default 0,
+
-- rev_id of the given revision
- rc_this_oldid int unsigned NOT NULL default '0',
-
+ rc_this_oldid int unsigned NOT NULL default 0,
+
-- rev_id of the prior revision, for generating diff links.
- rc_last_oldid int unsigned NOT NULL default '0',
-
- -- These may no longer be used, with the new move log.
- rc_type tinyint unsigned NOT NULL default '0',
- rc_moved_to_ns tinyint unsigned NOT NULL default '0',
- rc_moved_to_title varchar(255) binary NOT NULL default '',
-
+ rc_last_oldid int unsigned NOT NULL default 0,
+
+ -- The type of change entry (RC_EDIT,RC_NEW,RC_LOG,RC_EXTERNAL)
+ rc_type tinyint unsigned NOT NULL default 0,
+
+ -- The source of the change entry (replaces rc_type)
+ -- default of '' is temporary, needed for initial migration
+ rc_source varchar(16) 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 unsigned NOT NULL default '0',
-
+ rc_patrolled tinyint unsigned NOT NULL default 0,
+
-- Recorded IP address the edit was made from, if the
-- $wgPutIPinRC option is enabled.
rc_ip varbinary(40) NOT NULL default '',
-
+
-- Text length in characters before
-- and after the edit
rc_old_len int,
rc_new_len int,
-- Visibility of recent changes items, bitfield
- rc_deleted tinyint unsigned NOT NULL default '0',
+ rc_deleted tinyint unsigned NOT NULL default 0,
- -- Value corresonding to log_id, specific log entries
- rc_logid int unsigned NOT NULL default '0',
+ -- Value corresponding to log_id, specific log entries
+ rc_logid int unsigned NOT NULL default 0,
-- Store log type info here, or null
rc_log_type varbinary(255) NULL default NULL,
-- Store log action or null
rc_log_action varbinary(255) NULL default NULL,
-- Log params
- rc_params blob NULL,
-
- PRIMARY KEY rc_id (rc_id),
- INDEX rc_timestamp (rc_timestamp),
- INDEX rc_namespace_title (rc_namespace, rc_title),
- INDEX rc_cur_id (rc_cur_id),
- INDEX new_name_timestamp (rc_new,rc_namespace,rc_timestamp),
- INDEX rc_ip (rc_ip),
- INDEX rc_ns_usertext (rc_namespace, rc_user_text),
- INDEX rc_user_text (rc_user_text, rc_timestamp)
-
+ rc_params blob NULL
) /*$wgDBTableOptions*/;
-CREATE TABLE /*$wgDBprefix*/watchlist (
+-- Special:Recentchanges
+CREATE INDEX /*i*/rc_timestamp ON /*_*/recentchanges (rc_timestamp);
+
+-- Special:Watchlist
+CREATE INDEX /*i*/rc_namespace_title ON /*_*/recentchanges (rc_namespace, rc_title);
+
+-- Special:Recentchangeslinked when finding changes in pages linked from a page
+CREATE INDEX /*i*/rc_cur_id ON /*_*/recentchanges (rc_cur_id);
+
+-- Special:Newpages
+CREATE INDEX /*i*/new_name_timestamp ON /*_*/recentchanges (rc_new,rc_namespace,rc_timestamp);
+
+-- Blank unless $wgPutIPinRC=true (false at WMF), possibly used by extensions,
+-- but mostly replaced by CheckUser.
+CREATE INDEX /*i*/rc_ip ON /*_*/recentchanges (rc_ip);
+
+-- Probably intended for Special:NewPages namespace filter
+CREATE INDEX /*i*/rc_ns_usertext ON /*_*/recentchanges (rc_namespace, rc_user_text);
+
+-- SiteStats active user count, Special:ActiveUsers, Special:NewPages user filter
+CREATE INDEX /*i*/rc_user_text ON /*_*/recentchanges (rc_user_text, rc_timestamp);
+
+-- ApiQueryRecentChanges (T140108)
+CREATE INDEX /*i*/rc_name_type_patrolled_timestamp ON /*_*/recentchanges (rc_namespace, rc_type, rc_patrolled, rc_timestamp);
+
+
+CREATE TABLE /*_*/watchlist (
+ wl_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- Key to user.user_id
wl_user int unsigned NOT NULL,
-
+
-- Key to page_namespace/page_title
-- Note that users may watch pages which do not exist yet,
-- or existed in the past but have been deleted.
- wl_namespace int NOT NULL default '0',
+ wl_namespace int NOT NULL default 0,
wl_title varchar(255) binary NOT NULL default '',
-
- -- Timestamp when user was last sent a notification e-mail;
- -- cleared when the user visits the page.
- wl_notificationtimestamp varbinary(14),
-
- UNIQUE KEY (wl_user, wl_namespace, wl_title),
- KEY namespace_title (wl_namespace, wl_title)
+
+ -- Timestamp used to send notification e-mails and show "updated since last visit" markers on
+ -- history and recent changes / watchlist. Set to NULL when the user visits the latest revision
+ -- of the page, which means that they should be sent an e-mail on the next change.
+ wl_notificationtimestamp varbinary(14)
) /*$wgDBTableOptions*/;
+-- Special:Watchlist
+CREATE UNIQUE INDEX /*i*/wl_user ON /*_*/watchlist (wl_user, wl_namespace, wl_title);
---
--- Used by the math module to keep track
--- of previously-rendered items.
---
-CREATE TABLE /*$wgDBprefix*/math (
- -- Binary MD5 hash of the latex fragment, used as an identifier key.
- math_inputhash varbinary(16) NOT NULL,
-
- -- Not sure what this is, exactly...
- math_outputhash varbinary(16) NOT NULL,
-
- -- texvc reports how well it thinks the HTML conversion worked;
- -- if it's a low level the PNG rendering may be preferred.
- math_html_conservativeness tinyint NOT NULL,
-
- -- HTML output from texvc, if any
- math_html text,
-
- -- MathML output from texvc, if any
- math_mathml text,
-
- UNIQUE KEY math_inputhash (math_inputhash)
+-- Special:Movepage (WatchedItemStore::duplicateEntry)
+CREATE INDEX /*i*/namespace_title ON /*_*/watchlist (wl_namespace, wl_title);
+
+-- ApiQueryWatchlistRaw changed filter
+CREATE INDEX /*i*/wl_user_notificationtimestamp ON /*_*/watchlist (wl_user, wl_notificationtimestamp);
-) /*$wgDBTableOptions*/;
--
-- When using the default MySQL search backend, page titles
-- This table must be MyISAM; InnoDB does not support the needed
-- fulltext index.
--
-CREATE TABLE /*$wgDBprefix*/searchindex (
+CREATE TABLE /*_*/searchindex (
-- Key to page_id
si_page int unsigned NOT NULL,
-
+
-- Munged version of title
si_title varchar(255) NOT NULL default '',
-
+
-- Munged version of body text
- si_text mediumtext NOT NULL,
-
- UNIQUE KEY (si_page),
- FULLTEXT si_title (si_title),
- FULLTEXT si_text (si_text)
+ si_text mediumtext NOT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
+
+CREATE UNIQUE INDEX /*i*/si_page ON /*_*/searchindex (si_page);
+CREATE FULLTEXT INDEX /*i*/si_title ON /*_*/searchindex (si_title);
+CREATE FULLTEXT INDEX /*i*/si_text ON /*_*/searchindex (si_text);
-) ENGINE=MyISAM;
--
-- Recognized interwiki link prefixes
--
-CREATE TABLE /*$wgDBprefix*/interwiki (
+CREATE TABLE /*_*/interwiki (
-- The interwiki prefix, (e.g. "Meatball", or the language prefix "de")
iw_prefix varchar(32) NOT NULL,
-
+
-- The URL of the wiki, with "$1" as a placeholder for an article name.
-- Any spaces in the name will be transformed to underscores before
-- insertion.
iw_url blob NOT NULL,
-
+
+ -- The URL of the file api.php
+ iw_api blob NOT NULL,
+
+ -- The name of the database (for a connection to be established with wfGetLB( 'wikiid' ))
+ iw_wikiid varchar(64) NOT NULL,
+
-- A boolean value indicating whether the wiki is in this project
-- (used, for example, to detect redirect loops)
iw_local bool NOT NULL,
-
- -- Boolean value indicating whether interwiki transclusions are allowed.
- iw_trans tinyint NOT NULL default 0,
-
- UNIQUE KEY iw_prefix (iw_prefix)
+ -- Boolean value indicating whether interwiki transclusions are allowed.
+ iw_trans tinyint NOT NULL default 0
) /*$wgDBTableOptions*/;
+CREATE UNIQUE INDEX /*i*/iw_prefix ON /*_*/interwiki (iw_prefix);
+
+
--
-- Used for caching expensive grouped queries
--
-CREATE TABLE /*$wgDBprefix*/querycache (
+CREATE TABLE /*_*/querycache (
-- A key name, generally the base name of of the special page.
qc_type varbinary(32) NOT NULL,
-
+
-- Some sort of stored value. Sizes, counts...
- qc_value int unsigned NOT NULL default '0',
-
- -- Target namespace+title
- qc_namespace int NOT NULL default '0',
- qc_title varchar(255) binary NOT NULL default '',
-
- KEY (qc_type,qc_value)
+ qc_value int unsigned NOT NULL default 0,
+ -- Target namespace+title
+ qc_namespace int NOT NULL default 0,
+ qc_title varchar(255) binary NOT NULL default ''
) /*$wgDBTableOptions*/;
+CREATE INDEX /*i*/qc_type ON /*_*/querycache (qc_type,qc_value);
+
+
--
-- For a few generic cache operations if not using Memcached
--
-CREATE TABLE /*$wgDBprefix*/objectcache (
- keyname varbinary(255) NOT NULL default '',
+CREATE TABLE /*_*/objectcache (
+ keyname varbinary(255) NOT NULL default '' PRIMARY KEY,
value mediumblob,
- exptime datetime,
- PRIMARY KEY (keyname),
- KEY (exptime)
-
+ exptime datetime
) /*$wgDBTableOptions*/;
+CREATE INDEX /*i*/exptime ON /*_*/objectcache (exptime);
+
--
-- Cache of interwiki transclusion
--
-CREATE TABLE /*$wgDBprefix*/transcache (
- tc_url varbinary(255) NOT NULL,
+CREATE TABLE /*_*/transcache (
+ tc_url varbinary(255) NOT NULL PRIMARY KEY,
tc_contents text,
- tc_time int NOT NULL,
- UNIQUE INDEX tc_url_idx (tc_url)
+ tc_time binary(14) NOT NULL
) /*$wgDBTableOptions*/;
-CREATE TABLE /*$wgDBprefix*/logging (
+
+CREATE TABLE /*_*/logging (
-- Log ID, for referring to this specific log entry, probably for deletion and such.
- log_id int unsigned NOT NULL auto_increment,
+ log_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- Symbolic keys for the general log type and the action type
-- within the log. The output format will be controlled by the
-- action field, but only the type controls categorization.
- log_type varbinary(10) NOT NULL default '',
- log_action varbinary(10) NOT NULL default '',
-
+ log_type varbinary(32) NOT NULL default '',
+ log_action varbinary(32) NOT NULL default '',
+
-- Timestamp. Duh.
log_timestamp binary(14) NOT NULL default '19700101000000',
-
+
-- The user who performed this action; key to user_id
log_user int unsigned NOT NULL default 0,
-
+
+ -- Name of the user who performed this action
+ log_user_text varchar(255) binary NOT NULL default '',
+
-- Key to the page affected. Where a user is the target,
-- this will point to the user page.
log_namespace int NOT NULL default 0,
log_title varchar(255) binary NOT NULL default '',
-
+ log_page int unsigned NULL,
+
-- Freeform text. Interpreted as edit history comments.
- log_comment varchar(255) NOT NULL default '',
-
- -- LF separated list of miscellaneous parameters
+ -- Deprecated in favor of log_comment_id.
+ log_comment varbinary(767) NOT NULL default '',
+
+ -- Key to comment_id. Comment summarizing the change.
+ -- ("DEFAULT 0" is temporary, signaling that log_comment should be used)
+ log_comment_id bigint unsigned NOT NULL DEFAULT 0,
+
+ -- miscellaneous parameters:
+ -- LF separated list (old system) or serialized PHP array (new system)
log_params blob NOT NULL,
-- rev_deleted for logs
- log_deleted tinyint unsigned NOT NULL default '0',
+ log_deleted tinyint unsigned NOT NULL default 0
+) /*$wgDBTableOptions*/;
- PRIMARY KEY log_id (log_id),
- 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)
+-- Special:Log type filter
+CREATE INDEX /*i*/type_time ON /*_*/logging (log_type, log_timestamp);
-) /*$wgDBTableOptions*/;
+-- Special:Log performer filter
+CREATE INDEX /*i*/user_time ON /*_*/logging (log_user, log_timestamp);
+
+-- Special:Log title filter, log extract
+CREATE INDEX /*i*/page_time ON /*_*/logging (log_namespace, log_title, log_timestamp);
+
+-- Special:Log unfiltered
+CREATE INDEX /*i*/times ON /*_*/logging (log_timestamp);
+
+-- Special:Log filter by performer and type
+CREATE INDEX /*i*/log_user_type_time ON /*_*/logging (log_user, log_type, log_timestamp);
+
+-- Apparently just used for a few maintenance pages (findMissingFiles.php, Flow).
+-- Could be removed?
+CREATE INDEX /*i*/log_page_id_time ON /*_*/logging (log_page,log_timestamp);
+
+-- Special:Log action filter
+CREATE INDEX /*i*/type_action ON /*_*/logging (log_type, log_action, log_timestamp);
+
+-- Special:Log filter by type and anonymous performer
+CREATE INDEX /*i*/log_user_text_type_time ON /*_*/logging (log_user_text, log_type, log_timestamp);
+
+-- Special:Log filter by anonymous performer
+CREATE INDEX /*i*/log_user_text_time ON /*_*/logging (log_user_text, log_timestamp);
-CREATE TABLE /*$wgDBprefix*/trackbacks (
- tb_id int auto_increment,
- tb_page int REFERENCES /*$wgDBprefix*/page(page_id) ON DELETE CASCADE,
- tb_title varchar(255) NOT NULL,
- tb_url blob NOT NULL,
- tb_ex text,
- tb_name varchar(255),
- PRIMARY KEY (tb_id),
- INDEX (tb_page)
+CREATE TABLE /*_*/log_search (
+ -- The type of ID (rev ID, log ID, rev timestamp, username)
+ ls_field varbinary(32) NOT NULL,
+ -- The value of the ID
+ ls_value varchar(255) NOT NULL,
+ -- Key to log_id
+ ls_log_id int unsigned NOT NULL default 0,
+ PRIMARY KEY (ls_field,ls_value,ls_log_id)
) /*$wgDBTableOptions*/;
+CREATE INDEX /*i*/ls_log_id ON /*_*/log_search (ls_log_id);
-- Jobs performed by parallel apache threads or a command-line daemon
-CREATE TABLE /*$wgDBprefix*/job (
- job_id int unsigned NOT NULL auto_increment,
-
+CREATE TABLE /*_*/job (
+ job_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
+
-- Command name
-- Limited to 60 to prevent key length overflow
job_cmd varbinary(60) NOT NULL default '',
job_namespace int NOT NULL,
job_title varchar(255) binary NOT NULL,
+ -- Timestamp of when the job was inserted
+ -- NULL for jobs added before addition of the timestamp
+ job_timestamp varbinary(14) NULL default NULL,
+
-- Any other parameters to the command
- -- Presently unused, format undefined
+ -- Stored as a PHP serialized array, or an empty string if there are no parameters
job_params blob NOT NULL,
- PRIMARY KEY job_id (job_id),
- KEY (job_cmd, job_namespace, job_title)
+ -- Random, non-unique, number used for job acquisition (for lock concurrency)
+ job_random integer unsigned NOT NULL default 0,
+
+ -- The number of times this job has been locked
+ job_attempts integer unsigned NOT NULL default 0,
+
+ -- Field that conveys process locks on rows via process UUIDs
+ job_token varbinary(32) NOT NULL default '',
+
+ -- Timestamp when the job was locked
+ job_token_timestamp varbinary(14) NULL default NULL,
+
+ -- Base 36 SHA1 of the job parameters relevant to detecting duplicates
+ job_sha1 varbinary(32) NOT NULL default ''
) /*$wgDBTableOptions*/;
+CREATE INDEX /*i*/job_sha1 ON /*_*/job (job_sha1);
+CREATE INDEX /*i*/job_cmd_token ON /*_*/job (job_cmd,job_token,job_random);
+CREATE INDEX /*i*/job_cmd_token_id ON /*_*/job (job_cmd,job_token,job_id);
+CREATE INDEX /*i*/job_cmd ON /*_*/job (job_cmd, job_namespace, job_title, job_params(128));
+CREATE INDEX /*i*/job_timestamp ON /*_*/job (job_timestamp);
--- Details of updates to cached special pages
-CREATE TABLE /*$wgDBprefix*/querycache_info (
+-- Details of updates to cached special pages
+CREATE TABLE /*_*/querycache_info (
-- Special page name
-- Corresponds to a qc_type value
- qci_type varbinary(32) NOT NULL default '',
+ qci_type varbinary(32) NOT NULL default '' PRIMARY KEY,
-- Timestamp of last update
- qci_timestamp binary(14) NOT NULL default '19700101000000',
-
- UNIQUE KEY ( qci_type )
-
+ qci_timestamp binary(14) NOT NULL default '19700101000000'
) /*$wgDBTableOptions*/;
+
-- For each redirect, this table contains exactly one row defining its target
-CREATE TABLE /*$wgDBprefix*/redirect (
+CREATE TABLE /*_*/redirect (
-- Key to the page_id of the redirect page
- rd_from int unsigned NOT NULL default '0',
+ rd_from int unsigned NOT NULL default 0 PRIMARY KEY,
-- Key to page_namespace/page_title of the target page.
-- The target page may or may not exist, and due to renames
-- and deletions may refer to different page records as time
-- goes by.
- rd_namespace int NOT NULL default '0',
+ rd_namespace int NOT NULL default 0,
rd_title varchar(255) binary NOT NULL default '',
-
- PRIMARY KEY rd_from (rd_from),
- KEY rd_ns_title (rd_namespace,rd_title,rd_from)
+ rd_interwiki varchar(32) default NULL,
+ rd_fragment varchar(255) binary default NULL
) /*$wgDBTableOptions*/;
+CREATE INDEX /*i*/rd_ns_title ON /*_*/redirect (rd_namespace,rd_title,rd_from);
+
+
-- Used for caching expensive grouped queries that need two links (for example double-redirects)
-CREATE TABLE /*$wgDBprefix*/querycachetwo (
+CREATE TABLE /*_*/querycachetwo (
-- A key name, generally the base name of of the special page.
qcc_type varbinary(32) NOT NULL,
-
+
-- Some sort of stored value. Sizes, counts...
- qcc_value int unsigned NOT NULL default '0',
-
+ qcc_value int unsigned NOT NULL default 0,
+
-- Target namespace+title
- qcc_namespace int NOT NULL default '0',
+ qcc_namespace int NOT NULL default 0,
qcc_title varchar(255) binary NOT NULL default '',
-
+
-- Target namespace+title2
- qcc_namespacetwo int NOT NULL default '0',
- qcc_titletwo varchar(255) binary NOT NULL default '',
+ qcc_namespacetwo int NOT NULL default 0,
+ qcc_titletwo varchar(255) binary NOT NULL default ''
+) /*$wgDBTableOptions*/;
- KEY qcc_type (qcc_type,qcc_value),
- KEY qcc_title (qcc_type,qcc_namespace,qcc_title),
- KEY qcc_titletwo (qcc_type,qcc_namespacetwo,qcc_titletwo)
+CREATE INDEX /*i*/qcc_type ON /*_*/querycachetwo (qcc_type,qcc_value);
+CREATE INDEX /*i*/qcc_title ON /*_*/querycachetwo (qcc_type,qcc_namespace,qcc_title);
+CREATE INDEX /*i*/qcc_titletwo ON /*_*/querycachetwo (qcc_type,qcc_namespacetwo,qcc_titletwo);
-) /*$wgDBTableOptions*/;
-- Used for storing page restrictions (i.e. protection levels)
-CREATE TABLE /*$wgDBprefix*/page_restrictions (
+CREATE TABLE /*_*/page_restrictions (
+ -- Field for an ID for this restrictions row (sort-key for Special:ProtectedPages)
+ pr_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- Page to apply restrictions to (Foreign Key to page).
pr_page int NOT NULL,
-- The protection type (edit, move, etc)
-- Whether or not to cascade the protection down to pages transcluded.
pr_cascade tinyint NOT NULL,
-- Field for future support of per-user restriction.
- pr_user int NULL,
+ pr_user int unsigned NULL,
-- Field for time-limited protection.
- pr_expiry varbinary(14) NULL,
- -- Field for an ID for this restrictions row (sort-key for Special:ProtectedPages)
- pr_id int unsigned NOT NULL auto_increment,
+ pr_expiry varbinary(14) NULL
+) /*$wgDBTableOptions*/;
- PRIMARY KEY pr_pagetype (pr_page,pr_type),
+CREATE UNIQUE INDEX /*i*/pr_pagetype ON /*_*/page_restrictions (pr_page,pr_type);
+CREATE INDEX /*i*/pr_typelevel ON /*_*/page_restrictions (pr_type,pr_level);
+CREATE INDEX /*i*/pr_level ON /*_*/page_restrictions (pr_level);
+CREATE INDEX /*i*/pr_cascade ON /*_*/page_restrictions (pr_cascade);
- UNIQUE KEY pr_id (pr_id),
- KEY pr_typelevel (pr_type,pr_level),
- KEY pr_level (pr_level),
- KEY pr_cascade (pr_cascade)
-) /*$wgDBTableOptions*/;
-- Protected titles - nonexistent pages that have been protected
-CREATE TABLE /*$wgDBprefix*/protected_titles (
+CREATE TABLE /*_*/protected_titles (
pt_namespace int NOT NULL,
pt_title varchar(255) binary NOT NULL,
pt_user int unsigned NOT NULL,
- pt_reason tinyblob,
+ pt_reason varbinary(767) default '', -- Deprecated.
+ pt_reason_id bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that pt_reason should be used)
pt_timestamp binary(14) NOT NULL,
pt_expiry varbinary(14) NOT NULL default '',
- pt_create_perm varbinary(60) NOT NULL,
- PRIMARY KEY (pt_namespace,pt_title),
- KEY pt_timestamp (pt_timestamp)
+ pt_create_perm varbinary(60) NOT NULL
) /*$wgDBTableOptions*/;
+CREATE UNIQUE INDEX /*i*/pt_namespace_title ON /*_*/protected_titles (pt_namespace,pt_title);
+CREATE INDEX /*i*/pt_timestamp ON /*_*/protected_titles (pt_timestamp);
+
+
-- Name/value pairs indexed by page_id
-CREATE TABLE /*$wgDBprefix*/page_props (
+CREATE TABLE /*_*/page_props (
pp_page int NOT NULL,
pp_propname varbinary(60) NOT NULL,
pp_value blob NOT NULL,
-
- PRIMARY KEY (pp_page,pp_propname)
+ pp_sortkey float DEFAULT NULL
) /*$wgDBTableOptions*/;
+CREATE UNIQUE INDEX /*i*/pp_page_propname ON /*_*/page_props (pp_page,pp_propname);
+CREATE UNIQUE INDEX /*i*/pp_propname_page ON /*_*/page_props (pp_propname,pp_page);
+CREATE UNIQUE INDEX /*i*/pp_propname_sortkey_page ON /*_*/page_props (pp_propname,pp_sortkey,pp_page);
+
-- A table to log updates, one text key row per update.
-CREATE TABLE /*$wgDBprefix*/updatelog (
- ul_key varchar(255) NOT NULL,
- PRIMARY KEY (ul_key)
+CREATE TABLE /*_*/updatelog (
+ ul_key varchar(255) NOT NULL PRIMARY KEY,
+ ul_value blob
+) /*$wgDBTableOptions*/;
+
+
+-- A table to track tags for revisions, logs and recent changes.
+CREATE TABLE /*_*/change_tag (
+ ct_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
+ -- RCID for the change
+ ct_rc_id int NULL,
+ -- LOGID for the change
+ ct_log_id int unsigned NULL,
+ -- REVID for the change
+ ct_rev_id int unsigned NULL,
+ -- Tag applied
+ ct_tag varchar(255) NOT NULL,
+ -- Parameters for the tag, presently unused
+ ct_params blob NULL
+) /*$wgDBTableOptions*/;
+
+CREATE UNIQUE INDEX /*i*/change_tag_rc_tag ON /*_*/change_tag (ct_rc_id,ct_tag);
+CREATE UNIQUE INDEX /*i*/change_tag_log_tag ON /*_*/change_tag (ct_log_id,ct_tag);
+CREATE UNIQUE INDEX /*i*/change_tag_rev_tag ON /*_*/change_tag (ct_rev_id,ct_tag);
+-- Covering index, so we can pull all the info only out of the index.
+CREATE INDEX /*i*/change_tag_tag_id ON /*_*/change_tag (ct_tag,ct_rc_id,ct_rev_id,ct_log_id);
+
+
+-- Rollup table to pull a LIST of tags simply without ugly GROUP_CONCAT
+-- that only works on MySQL 4.1+
+CREATE TABLE /*_*/tag_summary (
+ ts_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
+ -- RCID for the change
+ ts_rc_id int NULL,
+ -- LOGID for the change
+ ts_log_id int unsigned NULL,
+ -- REVID for the change
+ ts_rev_id int unsigned NULL,
+ -- Comma-separated list of tags
+ ts_tags blob NOT NULL
+) /*$wgDBTableOptions*/;
+
+CREATE UNIQUE INDEX /*i*/tag_summary_rc_id ON /*_*/tag_summary (ts_rc_id);
+CREATE UNIQUE INDEX /*i*/tag_summary_log_id ON /*_*/tag_summary (ts_log_id);
+CREATE UNIQUE INDEX /*i*/tag_summary_rev_id ON /*_*/tag_summary (ts_rev_id);
+
+
+CREATE TABLE /*_*/valid_tag (
+ vt_tag varchar(255) NOT NULL PRIMARY KEY
+) /*$wgDBTableOptions*/;
+
+-- Table for storing localisation data
+CREATE TABLE /*_*/l10n_cache (
+ -- Language code
+ lc_lang varbinary(32) NOT NULL,
+ -- Cache key
+ lc_key varchar(255) NOT NULL,
+ -- Value
+ lc_value mediumblob NOT NULL,
+ PRIMARY KEY (lc_lang, lc_key)
+) /*$wgDBTableOptions*/;
+
+-- Table caching which local files a module depends on that aren't
+-- registered directly, used for fast retrieval of file dependency.
+-- Currently only used for tracking images that CSS depends on
+CREATE TABLE /*_*/module_deps (
+ -- Module name
+ md_module varbinary(255) NOT NULL,
+ -- Module context vary (includes skin and language; called "md_skin" for legacy reasons)
+ md_skin varbinary(32) NOT NULL,
+ -- JSON blob with file dependencies
+ md_deps mediumblob NOT NULL,
+ PRIMARY KEY (md_module,md_skin)
+) /*$wgDBTableOptions*/;
+
+-- Holds all the sites known to the wiki.
+CREATE TABLE /*_*/sites (
+ -- Numeric id of the site
+ site_id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+
+ -- Global identifier for the site, ie 'enwiktionary'
+ site_global_key varbinary(32) NOT NULL,
+
+ -- Type of the site, ie 'mediawiki'
+ site_type varbinary(32) NOT NULL,
+
+ -- Group of the site, ie 'wikipedia'
+ site_group varbinary(32) NOT NULL,
+
+ -- Source of the site data, ie 'local', 'wikidata', 'my-magical-repo'
+ site_source varbinary(32) NOT NULL,
+
+ -- Language code of the sites primary language.
+ site_language varbinary(32) NOT NULL,
+
+ -- Protocol of the site, ie 'http://', 'irc://', '//'
+ -- This field is an index for lookups and is build from type specific data in site_data.
+ site_protocol varbinary(32) NOT NULL,
+
+ -- Domain of the site in reverse order, ie 'org.mediawiki.www.'
+ -- This field is an index for lookups and is build from type specific data in site_data.
+ site_domain VARCHAR(255) NOT NULL,
+
+ -- Type dependent site data.
+ site_data BLOB NOT NULL,
+
+ -- If site.tld/path/key:pageTitle should forward users to the page on
+ -- the actual site, where "key" is the local identifier.
+ site_forward bool NOT NULL,
+
+ -- Type dependent site config.
+ -- For instance if template transclusion should be allowed if it's a MediaWiki.
+ site_config BLOB NOT NULL
) /*$wgDBTableOptions*/;
+CREATE UNIQUE INDEX /*i*/sites_global_key ON /*_*/sites (site_global_key);
+CREATE INDEX /*i*/sites_type ON /*_*/sites (site_type);
+CREATE INDEX /*i*/sites_group ON /*_*/sites (site_group);
+CREATE INDEX /*i*/sites_source ON /*_*/sites (site_source);
+CREATE INDEX /*i*/sites_language ON /*_*/sites (site_language);
+CREATE INDEX /*i*/sites_protocol ON /*_*/sites (site_protocol);
+CREATE INDEX /*i*/sites_domain ON /*_*/sites (site_domain);
+CREATE INDEX /*i*/sites_forward ON /*_*/sites (site_forward);
+
+-- Links local site identifiers to their corresponding site.
+CREATE TABLE /*_*/site_identifiers (
+ -- Key on site.site_id
+ si_site INT UNSIGNED NOT NULL,
+
+ -- local key type, ie 'interwiki' or 'langlink'
+ si_type varbinary(32) NOT NULL,
+
+ -- local key value, ie 'en' or 'wiktionary'
+ si_key varbinary(32) NOT NULL
+) /*$wgDBTableOptions*/;
+
+CREATE UNIQUE INDEX /*i*/site_ids_type ON /*_*/site_identifiers (si_type, si_key);
+CREATE INDEX /*i*/site_ids_site ON /*_*/site_identifiers (si_site);
+CREATE INDEX /*i*/site_ids_key ON /*_*/site_identifiers (si_key);
+
-- vim: sw=2 sts=2 et
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff