[[mw:]]>Krinkle |
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(No difference)
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Latest revision as of 18:21, 12 November 2022
-- 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.
-- 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:
--
-- 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 BINARY or VARBINARY 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 Postgres backend uses TIMESTAMPTZ fields for timestamps,
-- and we will migrate the MySQL definitions at some point as
-- well.
--
--
-- 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
-- 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 /*_*/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, 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
-- 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,
-- Timestamp of the last time when a new password was
-- 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,
-- 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
-- May contain NULL for old accounts if batch-update scripts haven't been
-- run, as well as listing deleted edits and other myriad ways it could be
-- out of sync.
--
-- Meant primarily for heuristic checks to give an impression of whether
-- the account has been used much.
--
user_editcount int,
-- 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));
--
-- The "actor" table associates user names or IP addresses with integers for
-- the benefit of other tables that need to refer to either logged-in or
-- logged-out users. If something can only ever be done by logged-in users, it
-- can refer to the user table directly.
--
CREATE TABLE /*_*/actor (
-- Unique ID to identify each actor
actor_id bigint unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- Key to user.user_id, or NULL for anonymous edits.
actor_user int unsigned,
-- Text username or IP address
actor_name varchar(255) binary NOT NULL
) /*$wgDBTableOptions*/;
-- User IDs and names must be unique.
CREATE UNIQUE INDEX /*i*/actor_user ON /*_*/actor (actor_user);
CREATE UNIQUE INDEX /*i*/actor_name ON /*_*/actor (actor_name);
--
-- 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 /*_*/user_groups (
-- Key to user_id
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.
--
-- At runtime $wgGroupPermissions will associate group keys
-- with particular permissions. A user will have the combined
-- permissions of any group they're explicitly in, plus
-- the implicit '*' and 'user' groups.
ug_group varbinary(255) NOT NULL default '',
-- Time at which the user group membership will expire. Set to
-- NULL for a non-expiring (infinite) membership.
ug_expiry varbinary(14) NULL default NULL,
PRIMARY KEY (ug_user, ug_group)
) /*$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)
) /*$wgDBTableOptions*/;
--
-- Stores notifications of user talk page changes, for the display
-- of the "you have new messages" box
--
CREATE TABLE /*_*/user_newtalk (
-- Key to user.user_id
user_id int unsigned NOT NULL default 0,
-- If the user is an anonymous user their IP address is stored here
-- since the user_id of 0 is ambiguous
user_ip varbinary(40) NOT NULL default '',
-- The highest timestamp of revisions of the talk page viewed
-- by this user
user_last_timestamp varbinary(14) NULL default NULL
) /*$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 defaults
-- 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 /*_*/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 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,
-- 1 indicates the article is a redirect.
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,
-- 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 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,
-- 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 /*_*/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.
-- @deprecated since 1.31. If rows in the slots table with slot_revision_id = rev_id
-- exist, this field should be ignored (and may be 0) in favor of the
-- corresponding data from the slots and content tables
rev_text_id int unsigned NOT NULL default 0,
-- 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.
-- Deprecated in favor of revision_actor_temp.revactor_actor.
rev_user int unsigned NOT NULL default 0,
-- Text username or IP address of the editor.
-- Deprecated in favor of revision_actor_temp.revactor_actor.
rev_user_text varchar(255) binary NOT NULL default '',
-- 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,
-- 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,
-- Key to revision.rev_id
-- This field is used to add support for a tree structure (The Adjacency List Model)
rev_parent_id int unsigned default NULL,
-- SHA-1 text content hash in base-36
rev_sha1 varbinary(32) NOT NULL default '',
-- content model, see CONTENT_MODEL_XXX constants
-- @deprecated since 1.31. If rows in the slots table with slot_revision_id = rev_id
-- exist, this field should be ignored (and may be NULL) in favor of the
-- corresponding data from the slots and content tables
rev_content_model varbinary(32) DEFAULT NULL,
-- content format, see CONTENT_FORMAT_XXX constants
-- @deprecated since 1.31. If rows in the slots table with slot_revision_id = rev_id
-- exist, this field should be ignored (and may be NULL).
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)
) /*$wgDBTableOptions*/;
-- Ensure uniqueness
CREATE UNIQUE INDEX /*i*/revcomment_rev ON /*_*/revision_comment_temp (revcomment_rev);
--
-- Temporary table to avoid blocking on an alter of revision.
--
-- On large wikis like the English Wikipedia, altering the revision table is a
-- months-long process. This table is being created to avoid such an alter, and
-- will be merged back into revision in the future.
--
CREATE TABLE /*_*/revision_actor_temp (
-- Key to rev_id
revactor_rev int unsigned NOT NULL,
-- Key to actor_id
revactor_actor bigint unsigned NOT NULL,
-- Copy fields from revision for indexes
revactor_timestamp binary(14) NOT NULL default '',
revactor_page int unsigned NOT NULL,
PRIMARY KEY (revactor_rev, revactor_actor)
) /*$wgDBTableOptions*/;
-- Ensure uniqueness
CREATE UNIQUE INDEX /*i*/revactor_rev ON /*_*/revision_actor_temp (revactor_rev);
-- Match future indexes on revision
CREATE INDEX /*i*/actor_timestamp ON /*_*/revision_actor_temp (revactor_actor,revactor_timestamp);
CREATE INDEX /*i*/page_actor_timestamp ON /*_*/revision_actor_temp (revactor_page,revactor_actor,revactor_timestamp);
--
-- 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.
--
-- 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 /*_*/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 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.
-- utf-8: text was stored as UTF-8.
-- If $wgLegacyEncoding option is on, rows *without* this flag
-- will be converted to UTF-8 transparently at load time. Note
-- that due to a bug in a maintenance script, this flag may
-- have been stored as 'utf8' in some cases (T18841).
-- object: text field contained a serialized PHP object.
-- The object either contains multiple versions compressed
-- together to achieve a better compression ratio, or it refers
-- to another row where the text can be found.
-- external: text was stored in an external location specified by old_text.
-- Any additional flags apply to the data stored at that URL, not
-- the URL itself. The 'object' flag is *not* set for URLs of the
-- form 'DB://cluster/id/itemid', because the external storage
-- system itself decompresses these.
old_flags tinyblob NOT NULL
) /*$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);
--
-- Archive area for deleted pages and their revisions.
-- These may be viewed (and restored) by admins through the Special:Undelete interface.
--
CREATE TABLE /*_*/archive (
-- Primary key
ar_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- Copied from page_namespace
ar_namespace int NOT NULL default 0,
-- Copied from page_title
ar_title varchar(255) binary NOT NULL default '',
-- Basic revision stuff...
ar_comment_id bigint unsigned NOT NULL,
ar_actor bigint unsigned NOT NULL,
ar_timestamp binary(14) NOT NULL default '',
ar_minor_edit tinyint NOT NULL default 0,
-- Copied from rev_id.
--
-- @since 1.5 Entries from 1.4 will be NULL here. When restoring
-- archive rows from before 1.5, a new rev_id is created.
ar_rev_id int unsigned NOT NULL,
-- Copied from rev_text_id, references text.old_id.
-- To avoid breaking the block-compression scheme and otherwise making
-- storage changes harder, the actual text is *not* deleted from the
-- text storage. Instead, it is merely hidden from public view, by removal
-- of the page and revision entries.
--
-- @deprecated since 1.31. If rows in the slots table with slot_revision_id = ar_rev_id
-- exist, this field should be ignored (and may be 0) in favor of the
-- corresponding data from the slots and content tables
ar_text_id int unsigned NOT NULL DEFAULT 0,
-- Copied from rev_deleted. Although this may be raised during deletion.
-- Users with the "suppressrevision" right may "archive" and "suppress"
-- content in a single action.
-- @since 1.10
ar_deleted tinyint unsigned NOT NULL default 0,
-- Copied from rev_len, length of this revision in bytes.
-- @since 1.10
ar_len int unsigned,
-- Copied from page_id. Restoration will attempt to use this as page ID if
-- no current page with the same name exists. Otherwise, the revisions will
-- be restored under the current page. Can be used for manual undeletion by
-- developers if multiple pages by the same name were archived.
--
-- @since 1.11 Older entries will have NULL.
ar_page_id int unsigned,
-- Copied from rev_parent_id.
-- @since 1.13
ar_parent_id int unsigned default NULL,
-- Copied from rev_sha1, SHA-1 text content hash in base-36
-- @since 1.19
ar_sha1 varbinary(32) NOT NULL default '',
-- Copied from rev_content_model, see CONTENT_MODEL_XXX constants
-- @since 1.21
-- @deprecated since 1.31. If rows in the slots table with slot_revision_id = ar_rev_id
-- exist, this field should be ignored (and may be NULL) in favor of the
-- corresponding data from the slots and content tables
ar_content_model varbinary(32) DEFAULT NULL,
-- Copied from rev_content_format, see CONTENT_FORMAT_XXX constants
-- @since 1.21
-- @deprecated since 1.31. If rows in the slots table with slot_revision_id = ar_rev_id
-- exist, this field should be ignored (and may be NULL).
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_actor_timestamp ON /*_*/archive (ar_actor,ar_timestamp);
-- Index for linking archive rows with tables that normally link with revision
-- rows, such as change_tag.
CREATE UNIQUE INDEX /*i*/ar_revid_uniq ON /*_*/archive (ar_rev_id);
--
-- Slots represent an n:m relation between revisions and content objects.
-- A content object can have a specific "role" in one or more revisions.
-- Each revision can have multiple content objects, each having a different role.
--
CREATE TABLE /*_*/slots (
-- reference to rev_id or ar_rev_id
slot_revision_id bigint unsigned NOT NULL,
-- reference to role_id
slot_role_id smallint unsigned NOT NULL,
-- reference to content_id
slot_content_id bigint unsigned NOT NULL,
-- The revision ID of the revision that originated the slot's content.
-- To find revisions that changed slots, look for slot_origin = slot_revision_id.
-- TODO: Is that actually true? Rollback seems to violate it by setting
-- slot_origin to an older rev_id. Undeletions could result in the same situation.
slot_origin bigint unsigned NOT NULL,
PRIMARY KEY ( slot_revision_id, slot_role_id )
) /*$wgDBTableOptions*/;
-- Index for finding revisions that modified a specific slot
CREATE INDEX /*i*/slot_revision_origin_role ON /*_*/slots (slot_revision_id, slot_origin, slot_role_id);
--
-- The content table represents content objects. It's primary purpose is to provide the necessary
-- meta-data for loading and interpreting a serialized data blob to create a content object.
--
CREATE TABLE /*_*/content (
-- ID of the content object
content_id bigint unsigned PRIMARY KEY AUTO_INCREMENT,
-- Nominal size of the content object (not necessarily of the serialized blob)
content_size int unsigned NOT NULL,
-- Nominal hash of the content object (not necessarily of the serialized blob)
content_sha1 varbinary(32) NOT NULL,
-- reference to model_id. Note the content format isn't specified; it should
-- be assumed to be in the default format for the model unless auto-detected
-- otherwise.
content_model smallint unsigned NOT NULL,
-- URL-like address of the content blob
content_address varbinary(255) NOT NULL
) /*$wgDBTableOptions*/;
--
-- Normalization table for role names
--
CREATE TABLE /*_*/slot_roles (
role_id smallint PRIMARY KEY AUTO_INCREMENT,
role_name varbinary(64) NOT NULL
) /*$wgDBTableOptions*/;
-- Index for looking of the internal ID of for a name
CREATE UNIQUE INDEX /*i*/role_name ON /*_*/slot_roles (role_name);
--
-- Normalization table for content model names
--
CREATE TABLE /*_*/content_models (
model_id smallint PRIMARY KEY AUTO_INCREMENT,
model_name varbinary(64) NOT NULL
) /*$wgDBTableOptions*/;
-- Index for looking of the internal ID of for a name
CREATE UNIQUE INDEX /*i*/model_name ON /*_*/content_models (model_name);
--
-- Track page-to-page hyperlinks within the wiki.
--
CREATE TABLE /*_*/pagelinks (
-- Key to the page_id of the page containing the link.
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_title varchar(255) binary NOT NULL default '',
PRIMARY KEY (pl_from,pl_namespace,pl_title)
) /*$wgDBTableOptions*/;
-- Reverse index, for Special:Whatlinkshere
CREATE INDEX /*i*/pl_namespace ON /*_*/pagelinks (pl_namespace,pl_title,pl_from);
-- Index for Special:Whatlinkshere with namespace filter
CREATE INDEX /*i*/pl_backlinks_namespace ON /*_*/pagelinks (pl_from_namespace,pl_namespace,pl_title,pl_from);
--
-- Track template inclusions.
--
CREATE TABLE /*_*/templatelinks (
-- Key to the page_id of the page containing the link.
tl_from int unsigned NOT NULL default 0,
-- Namespace for this page
tl_from_namespace int NOT NULL default 0,
-- Key to page_namespace/page_title of the target page.
-- The target page may or may not exist, and due to renames
-- and deletions may refer to different page records as time
-- goes by.
tl_namespace int NOT NULL default 0,
tl_title varchar(255) binary NOT NULL default '',
PRIMARY KEY (tl_from,tl_namespace,tl_title)
) /*$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 /*_*/imagelinks (
-- Key to page_id of the page containing the image / media link.
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 '',
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
--
CREATE TABLE /*_*/categorylinks (
-- Key to page_id of the page defined as a category member.
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 '',
-- 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,
-- 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*/;
-- 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 /*_*/category (
-- Primary key
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,
-- it has this name (in the Category namespace).
cat_title varchar(255) binary NOT NULL,
-- The numbers of member pages (including categories and media), subcatego-
-- ries, and Image: namespace members, respectively. These are signed to
-- make underflow more obvious. We make the first number include the second
-- two for better sorting: subtracting for display is easy, adding for order-
-- 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
) /*$wgDBTableOptions*/;
CREATE UNIQUE INDEX /*i*/cat_title ON /*_*/category (cat_title);
-- For Special:Mostlinkedcategories
CREATE INDEX /*i*/cat_pages ON /*_*/category (cat_pages);
--
-- Track links to external URLs
--
CREATE TABLE /*_*/externallinks (
-- Primary key
el_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- page_id of the referring page
el_from int unsigned NOT NULL default 0,
-- The URL
el_to blob NOT NULL,
-- In the case of HTTP URLs, this is the URL with any username or password
-- removed, and with the labels in the hostname reversed and converted to
-- lower case. An extra dot is added to allow for matching of either
-- example.com or *.example.com in a single scan.
-- Example:
-- http://user:password@sub.example.com/page.html
-- becomes
-- http://com.example.sub./page.html
-- which allows for fast searching for all pages under example.com with the
-- clause:
-- WHERE el_index LIKE 'http://com.example.%'
--
-- Note if you enable or disable PHP's intl extension, you'll need to run
-- maintenance/refreshExternallinksIndex.php to refresh this field.
el_index blob NOT NULL,
-- This is el_index truncated to 60 bytes to allow for sortable queries that
-- aren't supported by a partial index.
el_index_60 varbinary(60) NOT NULL
) /*$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 /*_*/langlinks (
-- page_id of the referring page
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)
) /*$wgDBTableOptions*/;
-- Index for ApiQueryLangbacklinks
CREATE INDEX /*i*/ll_lang ON /*_*/langlinks (ll_lang, ll_title);
--
-- Track inline interwiki links
--
CREATE TABLE /*_*/iwlinks (
-- page_id of the referring page
iwl_from int unsigned NOT NULL default 0,
-- Interwiki prefix code of the target
iwl_prefix varbinary(20) NOT NULL default '',
-- Title of the target, including namespace
iwl_title varchar(255) binary NOT NULL default '',
PRIMARY KEY (iwl_from,iwl_prefix,iwl_title)
) /*$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 /*_*/site_stats (
-- The single row should contain 1 here.
ss_row_id int unsigned NOT NULL PRIMARY KEY,
-- Total number of edits performed.
ss_total_edits bigint unsigned default NULL,
-- See SiteStatsInit::articles().
ss_good_articles bigint unsigned default NULL,
-- Total pages, theoretically equal to SELECT COUNT(*) FROM page.
ss_total_pages bigint unsigned default NULL,
-- Number of users, theoretically equal to SELECT COUNT(*) FROM user.
ss_users bigint unsigned default NULL,
-- Number of users that still edit.
ss_active_users bigint unsigned default NULL,
-- Number of images, equivalent to SELECT COUNT(*) FROM image.
ss_images bigint unsigned default NULL
) /*$wgDBTableOptions*/;
--
-- The internet is full of jerks, alas. Sometimes it's handy
-- to block a vandal or troll account.
--
CREATE TABLE /*_*/ipblocks (
-- Primary key, introduced for privacy.
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,
-- Actor who made the block.
ipb_by_actor bigint unsigned NOT NULL,
-- Key to comment_id. Text comment made by blocker.
ipb_reason_id bigint unsigned NOT NULL,
-- 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.
ipb_auto bool NOT NULL default 0,
-- If set to 1, block applies only to logged-out users
ipb_anon_only bool NOT NULL default 0,
-- Block prevents account creation from matching IP addresses
ipb_create_account bool NOT NULL default 1,
-- 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,
-- Flag for entries hidden from users and Sysops
ipb_deleted bool NOT NULL default 0,
-- 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,
-- 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,
-- Block user from editing any page on the site (other than their own user
-- talk page).
ipb_sitewide bool NOT NULL default 1
) /*$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);
--
-- Partial Block Restrictions
--
CREATE TABLE /*_*/ipblocks_restrictions (
-- The ipb_id from ipblocks
ir_ipb_id int NOT NULL,
-- The restriction type id.
ir_type tinyint(1) NOT NULL,
-- The restriction id that corrposponds to the type. Typically a Page ID or a
-- Namespace ID.
ir_value int NOT NULL,
PRIMARY KEY (ir_ipb_id, ir_type, ir_value)
) /*$wgDBTableOptions*/;
-- Index to query restrictions by the page or namespace.
CREATE INDEX /*i*/ir_type_value ON /*_*/ipblocks_restrictions (ir_type, ir_value);
--
-- Uploaded images and other files.
--
CREATE TABLE /*_*/image (
-- Filename.
-- This is also the title of the associated description page,
-- which will be in namespace 6 (NS_FILE).
img_name varchar(255) binary NOT NULL default '' PRIMARY KEY,
-- File size in bytes.
img_size int unsigned NOT NULL default 0,
-- For images, size in pixels.
img_width int NOT NULL default 0,
img_height int NOT NULL default 0,
-- Extracted Exif metadata stored as a serialized PHP array.
img_metadata mediumblob NOT NULL,
-- For images, bits per pixel if known.
img_bits int NOT NULL default 0,
-- Media type as defined by the MEDIATYPE_xxx constants
img_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE", "3D") default NULL,
-- major part of a MIME media type as defined by IANA
-- see https://www.iana.org/assignments/media-types/
-- for "chemical" cf. http://dx.doi.org/10.1021/ci9803233 by the ACS
img_major_mime ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart", "chemical") NOT NULL default "unknown",
-- minor part of a MIME media type as defined by IANA
-- the minor parts are not required to adher to any standard
-- but should be consistent throughout the database
-- see https://www.iana.org/assignments/media-types/
img_minor_mime varbinary(100) NOT NULL default "unknown",
-- Foreign key to comment table, which contains the description field as entered by the uploader.
-- This is displayed in image upload history and logs.
img_description_id bigint unsigned NOT NULL,
-- actor_id of the uploader.
img_actor bigint unsigned NOT NULL,
-- Time of the upload.
img_timestamp varbinary(14) NOT NULL default '',
-- SHA-1 content hash in base-36
img_sha1 varbinary(32) NOT NULL default ''
) /*$wgDBTableOptions*/;
-- Used by Special:Newimages and ApiQueryAllImages
CREATE INDEX /*i*/img_actor_timestamp ON /*_*/image (img_actor,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);
--
-- Previous revisions of uploaded files.
-- Awkwardly, image rows have to be moved into
-- this table at re-upload time.
--
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_id bigint unsigned NOT NULL,
oi_actor bigint unsigned 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", "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_actor_timestamp ON /*_*/oldimage (oi_actor,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 /*_*/filearchive (
-- Unique row id
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_id bigint unsigned NOT NULL,
-- Duped fields from image
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", "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_id bigint unsigned NOT NULL,
fa_actor bigint unsigned NOT NULL,
fa_timestamp binary(14) default '',
-- Visibility of deleted revisions, bitfield
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_actor_timestamp ON /*_*/filearchive (fa_actor,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 /*_*/recentchanges (
rc_id int NOT NULL PRIMARY KEY AUTO_INCREMENT,
rc_timestamp varbinary(14) NOT NULL default '',
-- As in revision
rc_actor bigint unsigned NOT NULL,
-- 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_id bigint unsigned NOT NULL,
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,
-- 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,
-- rev_id of the given revision
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,
-- 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,
-- Recorded IP address the edit was made from, if the
-- $wgPutIPinRC option is enabled.
rc_ip varbinary(40) NOT NULL default '',
-- Text length in characters before
-- and after the edit
rc_old_len int,
rc_new_len int,
-- Visibility of recent changes items, bitfield
rc_deleted tinyint unsigned NOT NULL default 0,
-- Value corresponding to log_id, specific log entries
rc_logid int unsigned NOT NULL default 0,
-- Store log type info here, or null
rc_log_type varbinary(255) NULL default NULL,
-- Store log action or null
rc_log_action varbinary(255) NULL default NULL,
-- Log params
rc_params blob NULL
) /*$wgDBTableOptions*/;
-- Special:Recentchanges
CREATE INDEX /*i*/rc_timestamp ON /*_*/recentchanges (rc_timestamp);
-- Special:Watchlist
CREATE INDEX /*i*/rc_namespace_title_timestamp ON /*_*/recentchanges (rc_namespace, rc_title, rc_timestamp);
-- 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 $wgPutIPinRC=true (false at WMF), possibly used by extensions,
-- but mostly replaced by CheckUser.
CREATE INDEX /*i*/rc_ip ON /*_*/recentchanges (rc_ip);
-- Probably intended for Special:NewPages namespace filter
CREATE INDEX /*i*/rc_ns_actor ON /*_*/recentchanges (rc_namespace, rc_actor);
-- SiteStats active user count, Special:ActiveUsers, Special:NewPages user filter
CREATE INDEX /*i*/rc_actor ON /*_*/recentchanges (rc_actor, rc_timestamp);
-- ApiQueryRecentChanges (T140108)
CREATE INDEX /*i*/rc_name_type_patrolled_timestamp ON /*_*/recentchanges (rc_namespace, rc_type, rc_patrolled, rc_timestamp);
-- Article.php and friends (T139012)
CREATE INDEX /*i*/rc_this_oldid ON /*_*/recentchanges (rc_this_oldid);
CREATE TABLE /*_*/watchlist (
wl_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- Key to user.user_id
wl_user int unsigned NOT NULL,
-- Key to page_namespace/page_title
-- Note that users may watch pages which do not exist yet,
-- or existed in the past but have been deleted.
wl_namespace int NOT NULL default 0,
wl_title varchar(255) binary NOT NULL default '',
-- Timestamp used to send notification e-mails and show "updated since last visit" markers on
-- history and recent changes / watchlist. Set to NULL when the user visits the latest revision
-- of the page, which means that they should be sent an e-mail on the next change.
wl_notificationtimestamp varbinary(14)
) /*$wgDBTableOptions*/;
-- Special:Watchlist
CREATE UNIQUE INDEX /*i*/wl_user ON /*_*/watchlist (wl_user, wl_namespace, wl_title);
-- 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);
--
-- 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 /*_*/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
) 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);
--
-- Recognized interwiki link prefixes
--
CREATE TABLE /*_*/interwiki (
-- The interwiki prefix, (e.g. "Meatball", or the language prefix "de")
iw_prefix varchar(32) NOT NULL PRIMARY KEY,
-- The URL of the wiki, with "$1" as a placeholder for an article name.
-- Any spaces in the name will be transformed to underscores before
-- insertion.
iw_url blob NOT NULL,
-- The URL of the file api.php
iw_api blob NOT NULL,
-- The name of the database (for a connection to be established with LBFactory::getMainLB( 'wikiid' ))
iw_wikiid varchar(64) NOT NULL,
-- A boolean value indicating whether the wiki is in this project
-- (used, for example, to detect redirect loops)
iw_local bool NOT NULL,
-- Boolean value indicating whether interwiki transclusions are allowed.
iw_trans tinyint NOT NULL default 0
) /*$wgDBTableOptions*/;
--
-- Used for caching expensive grouped queries
--
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 ''
) /*$wgDBTableOptions*/;
CREATE INDEX /*i*/qc_type ON /*_*/querycache (qc_type,qc_value);
--
-- For a few generic cache operations if not using Memcached
--
CREATE TABLE /*_*/objectcache (
keyname varbinary(255) NOT NULL default '' PRIMARY KEY,
value mediumblob,
exptime datetime
) /*$wgDBTableOptions*/;
CREATE INDEX /*i*/exptime ON /*_*/objectcache (exptime);
CREATE TABLE /*_*/logging (
-- Log ID, for referring to this specific log entry, probably for deletion and such.
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(32) NOT NULL default '',
log_action varbinary(32) NOT NULL default '',
-- Timestamp. Duh.
log_timestamp binary(14) NOT NULL default '19700101000000',
-- The actor who performed this action
log_actor bigint unsigned NOT NULL,
-- 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,
-- Key to comment_id. Comment summarizing the change.
log_comment_id bigint unsigned NOT NULL,
-- 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
) /*$wgDBTableOptions*/;
-- Special:Log type filter
CREATE INDEX /*i*/type_time ON /*_*/logging (log_type, log_timestamp);
-- Special:Log performer filter
CREATE INDEX /*i*/actor_time ON /*_*/logging (log_actor, log_timestamp);
-- Special:Log title filter, log extract
CREATE INDEX /*i*/page_time ON /*_*/logging (log_namespace, log_title, log_timestamp);
-- Special:Log unfiltered
CREATE INDEX /*i*/times ON /*_*/logging (log_timestamp);
-- Special:Log filter by performer and type
CREATE INDEX /*i*/log_actor_type_time ON /*_*/logging (log_actor, log_type, log_timestamp);
-- Apparently just used for a few maintenance pages (findMissingFiles.php, Flow).
-- Could be removed?
CREATE INDEX /*i*/log_page_id_time ON /*_*/logging (log_page,log_timestamp);
-- Special:Log action filter
CREATE INDEX /*i*/log_type_action ON /*_*/logging (log_type, log_action, log_timestamp);
CREATE TABLE /*_*/log_search (
-- The type of ID (rev ID, log ID, rev timestamp, username)
ls_field varbinary(32) NOT NULL,
-- The value of the ID
ls_value varchar(255) NOT NULL,
-- Key to log_id
ls_log_id int unsigned NOT NULL default 0,
PRIMARY KEY (ls_field,ls_value,ls_log_id)
) /*$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 /*_*/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 '',
-- 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,
-- 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
-- Stored as a PHP serialized array, or an empty string if there are no parameters
job_params mediumblob NOT NULL,
-- 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 ''
) /*$wgDBTableOptions*/;
CREATE INDEX /*i*/job_sha1 ON /*_*/job (job_sha1);
CREATE INDEX /*i*/job_cmd_token ON /*_*/job (job_cmd,job_token,job_random);
CREATE INDEX /*i*/job_cmd_token_id ON /*_*/job (job_cmd,job_token,job_id);
CREATE INDEX /*i*/job_cmd ON /*_*/job (job_cmd, job_namespace, job_title, job_params(128));
CREATE INDEX /*i*/job_timestamp ON /*_*/job (job_timestamp);
-- Details of updates to cached special pages
CREATE TABLE /*_*/querycache_info (
-- Special page name
-- Corresponds to a qc_type value
qci_type varbinary(32) NOT NULL default '' PRIMARY KEY,
-- Timestamp of last update
qci_timestamp binary(14) NOT NULL default '19700101000000'
) /*$wgDBTableOptions*/;
-- For each redirect, this table contains exactly one row defining its target
CREATE TABLE /*_*/redirect (
-- Key to the page_id of the redirect page
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_title varchar(255) binary NOT NULL default '',
rd_interwiki varchar(32) default NULL,
rd_fragment varchar(255) binary default NULL
) /*$wgDBTableOptions*/;
CREATE INDEX /*i*/rd_ns_title ON /*_*/redirect (rd_namespace,rd_title,rd_from);
-- Used for caching expensive grouped queries that need two links (for example double-redirects)
CREATE TABLE /*_*/querycachetwo (
-- A key name, generally the base name of of the special page.
qcc_type varbinary(32) NOT NULL,
-- Some sort of stored value. Sizes, counts...
qcc_value int unsigned NOT NULL default 0,
-- Target namespace+title
qcc_namespace int NOT NULL default 0,
qcc_title varchar(255) binary NOT NULL default '',
-- Target namespace+title2
qcc_namespacetwo int NOT NULL default 0,
qcc_titletwo varchar(255) binary NOT NULL default ''
) /*$wgDBTableOptions*/;
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);
-- Used for storing page restrictions (i.e. protection levels)
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)
pr_type varbinary(60) NOT NULL,
-- The protection level (Sysop, autoconfirmed, etc)
pr_level varbinary(60) NOT NULL,
-- 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 unsigned NULL,
-- Field for time-limited protection.
pr_expiry varbinary(14) NULL
) /*$wgDBTableOptions*/;
CREATE UNIQUE INDEX /*i*/pr_pagetype ON /*_*/page_restrictions (pr_page,pr_type);
CREATE INDEX /*i*/pr_typelevel ON /*_*/page_restrictions (pr_type,pr_level);
CREATE INDEX /*i*/pr_level ON /*_*/page_restrictions (pr_level);
CREATE INDEX /*i*/pr_cascade ON /*_*/page_restrictions (pr_cascade);
-- Protected titles - nonexistent pages that have been protected
CREATE TABLE /*_*/protected_titles (
pt_namespace int NOT NULL,
pt_title varchar(255) binary NOT NULL,
pt_user int unsigned NOT NULL,
pt_reason_id bigint unsigned NOT NULL,
pt_timestamp binary(14) NOT NULL,
pt_expiry varbinary(14) NOT NULL default '',
pt_create_perm varbinary(60) NOT NULL,
PRIMARY KEY (pt_namespace,pt_title)
) /*$wgDBTableOptions*/;
CREATE INDEX /*i*/pt_timestamp ON /*_*/protected_titles (pt_timestamp);
-- Name/value pairs indexed by page_id
CREATE TABLE /*_*/page_props (
pp_page int NOT NULL,
pp_propname varbinary(60) NOT NULL,
pp_value blob NOT NULL,
pp_sortkey float DEFAULT NULL,
PRIMARY KEY (pp_page,pp_propname)
) /*$wgDBTableOptions*/;
CREATE UNIQUE INDEX /*i*/pp_propname_page ON /*_*/page_props (pp_propname,pp_page);
CREATE UNIQUE INDEX /*i*/pp_propname_sortkey_page ON /*_*/page_props (pp_propname,pp_sortkey,pp_page);
-- A table to log updates, one text key row per update.
CREATE TABLE /*_*/updatelog (
ul_key varchar(255) NOT NULL PRIMARY KEY,
ul_value blob
) /*$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,
-- Parameters for the tag; used by some extensions
ct_params blob NULL,
-- Foreign key to change_tag_def row
ct_tag_id int unsigned NOT NULL
) /*$wgDBTableOptions*/;
CREATE UNIQUE INDEX /*i*/change_tag_rc_tag_id ON /*_*/change_tag (ct_rc_id,ct_tag_id);
CREATE UNIQUE INDEX /*i*/change_tag_log_tag_id ON /*_*/change_tag (ct_log_id,ct_tag_id);
CREATE UNIQUE INDEX /*i*/change_tag_rev_tag_id ON /*_*/change_tag (ct_rev_id,ct_tag_id);
-- Covering index, so we can pull all the info only out of the index.
CREATE INDEX /*i*/change_tag_tag_id_id ON /*_*/change_tag (ct_tag_id,ct_rc_id,ct_rev_id,ct_log_id);
-- Table for storing localisation data
CREATE TABLE /*_*/l10n_cache (
-- Language code
lc_lang varbinary(32) NOT NULL,
-- Cache key
lc_key varchar(255) NOT NULL,
-- Value
lc_value mediumblob NOT NULL,
PRIMARY KEY (lc_lang, lc_key)
) /*$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,
PRIMARY KEY (si_type, si_key)
) /*$wgDBTableOptions*/;
CREATE INDEX /*i*/site_ids_site ON /*_*/site_identifiers (si_site);
CREATE INDEX /*i*/site_ids_key ON /*_*/site_identifiers (si_key);
-- Table defining tag names for IDs. Also stores hit counts to avoid expensive queries on change_tag
CREATE TABLE /*_*/change_tag_def (
-- Numerical ID of the tag (ct_tag_id refers to this)
ctd_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- Symbolic name of the tag (what would previously be put in ct_tag)
ctd_name varbinary(255) NOT NULL,
-- Whether this tag was defined manually by a privileged user using Special:Tags
ctd_user_defined tinyint(1) NOT NULL,
-- Number of times this tag was used
ctd_count bigint unsigned NOT NULL default 0
) /*$wgDBTableOptions*/;
CREATE UNIQUE INDEX /*i*/ctd_name ON /*_*/change_tag_def (ctd_name);
CREATE INDEX /*i*/ctd_count ON /*_*/change_tag_def (ctd_count);
CREATE INDEX /*i*/ctd_user_defined ON /*_*/change_tag_def (ctd_user_defined);
-- vim: sw=2 sts=2 et
