-- 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.
--
-- Same with passwords.
user_email tinytext NOT NULL,
- -- Newline-separated list of name=value defining the user
- -- preferences
- -- Now obsolete in favour of user_properties table;
- -- old values will be migrated from here transparently.
- 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
-- Meant primarily for heuristic checks to give an impression of whether
-- the account has been used much.
--
- user_editcount int
+ user_editcount int,
+
+ -- Expiration date for user password.
+ user_password_expires varbinary(14) DEFAULT NULL
+
) /*$wgDBTableOptions*/;
CREATE UNIQUE INDEX /*i*/user_name ON /*_*/user (user_name);
CREATE INDEX /*i*/user_email_token ON /*_*/user (user_email_token);
+CREATE INDEX /*i*/user_email ON /*_*/user (user_email(50));
--
-- with particular permissions. A user will have the combined
-- permissions of any group they're explicitly in, plus
-- the implicit '*' and 'user' groups.
- ug_group varbinary(16) NOT NULL default ''
+ ug_group varbinary(255) NOT NULL default '',
+
+ -- Time at which the user group membership will expire. Set to
+ -- NULL for a non-expiring (infinite) membership.
+ ug_expiry varbinary(14) NULL default NULL,
+
+ PRIMARY KEY (ug_user, ug_group)
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/ug_user_group ON /*_*/user_groups (ug_user,ug_group);
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)
+) /*$wgDBTableOptions*/;
--
-- Stores notifications of user talk page changes, for the display
--
CREATE TABLE /*_*/user_newtalk (
-- Key to user.user_id
- user_id int NOT NULL default 0,
+ user_id int unsigned NOT NULL default 0,
-- If the user is an anonymous user their IP address is stored here
-- since the user_id of 0 is ambiguous
user_ip varbinary(40) NOT NULL default '',
-- The highest timestamp of revisions of the talk page viewed
-- by this user
- user_last_timestamp binary(14) NOT NULL default ''
+ user_last_timestamp varbinary(14) NULL default NULL
) /*$wgDBTableOptions*/;
-- Indexes renamed for SQLite in 1.14
--
CREATE TABLE /*_*/user_properties (
-- Foreign key to user.user_id
- up_user int NOT NULL,
+ up_user int unsigned NOT NULL,
-- Name of the option being saved. This is indexed for bulk lookup.
- up_property varbinary(32) NOT NULL,
+ up_property varbinary(255) NOT NULL,
-- Property value as a string.
- up_value blob
+ up_value blob,
+ PRIMARY KEY (up_user,up_property)
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/user_properties_user_property ON /*_*/user_properties (up_user,up_property);
CREATE INDEX /*i*/user_properties_property ON /*_*/user_properties (up_property);
+--
+-- This table contains a user's bot passwords: passwords that allow access to
+-- the account via the API with limited rights.
+--
+CREATE TABLE /*_*/bot_passwords (
+ -- User ID obtained from CentralIdLookup.
+ bp_user int unsigned NOT NULL,
+
+ -- Application identifier
+ bp_app_id varbinary(32) NOT NULL,
+
+ -- Password hashes, like user.user_password
+ bp_password tinyblob NOT NULL,
+
+ -- Like user.user_token
+ bp_token binary(32) NOT NULL default '',
+
+ -- JSON blob for MWRestrictions
+ bp_restrictions blob NOT NULL,
+
+ -- Grants allowed to the account when authenticated with this bot-password
+ bp_grants blob NOT NULL,
+
+ PRIMARY KEY ( bp_user, bp_app_id )
+) /*$wgDBTableOptions*/;
+
--
-- Core of the wiki: each page has an entry here which identifies
-- it by title and contains some essential metadata.
-- 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,
-- 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
+ 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.
-- 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.
-- 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.
-- 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.
+ -- Restrictions on who can access this revision
rev_deleted tinyint unsigned NOT NULL default 0,
-- Length of this revision in bytes
-- 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
+ 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
+ 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
-CREATE UNIQUE INDEX /*i*/rev_page_id ON /*_*/revision (rev_page, rev_id);
+-- 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.
--
-- 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 $wgLegacyEncoding option is on, rows *without* this flag
+ -- will be converted to UTF-8 transparently at load time. Note
+ -- that due to a bug in a maintenance script, this flag may
+ -- have been stored as 'utf8' in some cases (T18841).
-- object: text field contained a serialized PHP object.
-- The object either contains multiple versions compressed
-- together to achieve a better compression ratio, or it refers
-- to another row where the text can be found.
+ -- external: text was stored in an external location specified by old_text.
+ -- Any additional flags apply to the data stored at that URL, not
+ -- the URL itself. The 'object' flag is *not* set for URLs of the
+ -- form 'DB://cluster/id/itemid', because the external storage
+ -- system itself decompresses these.
old_flags tinyblob NOT NULL
) /*$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
+) /*$wgDBTableOptions*/;
+-- Index used for deduplication.
+CREATE INDEX /*i*/comment_hash ON /*_*/comment (comment_hash);
+
+
--
-- Holding area for deleted articles, which may be viewed
-- or restored by admins through the Special:Undelete interface.
-- fields, with several caveats.
--
CREATE TABLE /*_*/archive (
+ -- Primary key
+ ar_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
ar_namespace int NOT NULL default 0,
ar_title varchar(255) binary NOT NULL default '',
ar_text mediumblob NOT NULL,
-- Basic revision stuff...
- ar_comment tinyblob NOT NULL,
+ ar_comment varbinary(767) NOT NULL default '', -- Deprecated in favor of ar_comment_id
+ ar_comment_id bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that ar_comment should be used)
ar_user int unsigned NOT NULL default 0,
ar_user_text varchar(255) binary NOT NULL,
ar_timestamp binary(14) NOT NULL default '',
ar_page_id int unsigned,
-- Original previous revision
- ar_parent_id int unsigned default NULL
+ ar_parent_id int unsigned default NULL,
+
+ -- SHA-1 text content hash in base-36
+ ar_sha1 varbinary(32) NOT NULL default '',
+
+ -- content model, see CONTENT_MODEL_XXX constants
+ ar_content_model varbinary(32) DEFAULT NULL,
+
+ -- content format, see CONTENT_FORMAT_XXX constants
+ ar_content_format varbinary(64) DEFAULT NULL
) /*$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);
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 ''
+ pl_title varchar(255) binary NOT NULL default '',
+ PRIMARY KEY (pl_from,pl_namespace,pl_title)
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/pl_from ON /*_*/pagelinks (pl_from,pl_namespace,pl_title);
-CREATE UNIQUE INDEX /*i*/pl_namespace ON /*_*/pagelinks (pl_namespace,pl_title,pl_from);
+-- Reverse index, for Special:Whatlinkshere
+CREATE INDEX /*i*/pl_namespace ON /*_*/pagelinks (pl_namespace,pl_title,pl_from);
+
+-- Index for Special:Whatlinkshere with namespace filter
+CREATE INDEX /*i*/pl_backlinks_namespace ON /*_*/pagelinks (pl_from_namespace,pl_namespace,pl_title,pl_from);
--
CREATE TABLE /*_*/templatelinks (
-- Key to the page_id of the page containing the link.
tl_from int unsigned NOT NULL default 0,
+ -- Namespace for this page
+ tl_from_namespace int NOT NULL default 0,
-- Key to page_namespace/page_title of the target page.
-- The target page may or may not exist, and due to renames
-- and deletions may refer to different page records as time
-- goes by.
tl_namespace int NOT NULL default 0,
- tl_title varchar(255) binary NOT NULL default ''
+ tl_title varchar(255) binary NOT NULL default '',
+ PRIMARY KEY (tl_from,tl_namespace,tl_title)
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/tl_from ON /*_*/templatelinks (tl_from,tl_namespace,tl_title);
-CREATE UNIQUE INDEX /*i*/tl_namespace ON /*_*/templatelinks (tl_namespace,tl_title,tl_from);
+-- 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);
--
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 ''
+ il_to varchar(255) binary NOT NULL default '',
+ PRIMARY KEY (il_from,il_to)
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/il_from ON /*_*/imagelinks (il_from,il_to);
-CREATE UNIQUE INDEX /*i*/il_to ON /*_*/imagelinks (il_to,il_from);
+-- Reverse index, for Special:Whatlinkshere and file description page local usage
+CREATE INDEX /*i*/il_to ON /*_*/imagelinks (il_to,il_from);
+
+-- Index for Special:Whatlinkshere with namespace filter
+CREATE INDEX /*i*/il_backlinks_namespace ON /*_*/imagelinks (il_from_namespace,il_to,il_from);
--
-- concatenated with a line break followed by the page title before the sortkey
-- conversion algorithm is run. We store this so that we can update
-- collations without reparsing all pages.
+ -- Note: If you change the length of this field, you also need to change
+ -- code in LinksUpdate.php. See T27254.
cl_sortkey_prefix varchar(255) binary NOT NULL default '',
-- This isn't really used at present. Provided for an optional
-- paginate the three categories separately. This never has to be updated
-- after the page is created, since none of these page types can be moved to
-- any other.
- cl_type ENUM('page', 'subcat', 'file') NOT NULL default 'page'
+ cl_type ENUM('page', 'subcat', 'file') NOT NULL default 'page',
+ PRIMARY KEY (cl_from,cl_to)
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/cl_from ON /*_*/categorylinks (cl_from,cl_to);
-- 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);
--- Not really used?
+-- Used by the API (and some extensions)
CREATE INDEX /*i*/cl_timestamp ON /*_*/categorylinks (cl_to,cl_timestamp);
--- For finding rows with outdated collation
-CREATE INDEX /*i*/cl_collation ON /*_*/categorylinks (cl_collation);
+-- 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 en-
--- try somewhere in categorylinks, or 2) it once did. Categories might not
--- have corresponding pages, so they need to be tracked separately.
+-- 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
-- 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,
-
- -- Reserved for future use
- cat_hidden tinyint unsigned NOT NULL default 0
+ cat_files int signed NOT NULL default 0
) /*$wgDBTableOptions*/;
CREATE UNIQUE INDEX /*i*/cat_title ON /*_*/category (cat_title);
-- Track links to external URLs
--
CREATE TABLE /*_*/externallinks (
+ -- Primary key
+ el_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
+
-- page_id of the referring page
el_from int unsigned NOT NULL default 0,
-- which allows for fast searching for all pages under example.com with the
-- clause:
-- WHERE el_index LIKE 'http://com.example.%'
- el_index blob NOT NULL
+ el_index blob NOT NULL,
+
+ -- This is el_index truncated to 60 bytes to allow for sortable queries that
+ -- aren't supported by a partial index.
+ -- @todo Drop the default once this is deployed everywhere and code is populating it.
+ el_index_60 varbinary(60) NOT NULL default ''
) /*$wgDBTableOptions*/;
+-- Forward index, for page edit, save
CREATE INDEX /*i*/el_from ON /*_*/externallinks (el_from, el_to(40));
-CREATE INDEX /*i*/el_to ON /*_*/externallinks (el_to(60), el_from);
-CREATE INDEX /*i*/el_index ON /*_*/externallinks (el_index(60));
+-- Index for Special:LinkSearch exact search
+CREATE INDEX /*i*/el_to ON /*_*/externallinks (el_to(60), el_from);
---
--- Track external user accounts, if ExternalAuth is used
---
-CREATE TABLE /*_*/external_user (
- -- Foreign key to user_id
- eu_local_id int unsigned NOT NULL PRIMARY KEY,
-
- -- Some opaque identifier provided by the external database
- eu_external_id varchar(255) binary NOT NULL
-) /*$wgDBTableOptions*/;
-
-CREATE UNIQUE INDEX /*i*/eu_external_id ON /*_*/external_user (eu_external_id);
+-- For Special:LinkSearch wildcard search
+CREATE INDEX /*i*/el_index ON /*_*/externallinks (el_index(60));
+-- For Special:LinkSearch wildcard search with efficient paging by el_id
+CREATE INDEX /*i*/el_index_60 ON /*_*/externallinks (el_index_60, el_id);
+CREATE INDEX /*i*/el_from_index_60 ON /*_*/externallinks (el_from, el_index_60, el_id);
--
-- Track interlanguage links
ll_lang varbinary(20) NOT NULL default '',
-- Title of the target, including namespace
- ll_title varchar(255) binary NOT NULL default ''
+ ll_title varchar(255) binary NOT NULL default '',
+ PRIMARY KEY (ll_from,ll_lang)
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/ll_from ON /*_*/langlinks (ll_from, ll_lang);
+-- Index for ApiQueryLangbacklinks
CREATE INDEX /*i*/ll_lang ON /*_*/langlinks (ll_lang, ll_title);
iwl_prefix varbinary(20) NOT NULL default '',
-- Title of the target, including namespace
- iwl_title varchar(255) binary NOT NULL default ''
+ iwl_title varchar(255) binary NOT NULL default '',
+ PRIMARY KEY (iwl_from,iwl_prefix,iwl_title)
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/iwl_from ON /*_*/iwlinks (iwl_from, iwl_prefix, iwl_title);
-CREATE UNIQUE INDEX /*i*/iwl_prefix_title_from ON /*_*/iwlinks (iwl_prefix, iwl_title, iwl_from);
+-- Index for ApiQueryIWBacklinks
+CREATE INDEX /*i*/iwl_prefix_title_from ON /*_*/iwlinks (iwl_prefix, iwl_title, iwl_from);
+
+-- Index for ApiQueryIWLinks
+CREATE INDEX /*i*/iwl_prefix_from_title ON /*_*/iwlinks (iwl_prefix, iwl_from, iwl_title);
--
--
CREATE TABLE /*_*/site_stats (
-- The single row should contain 1 here.
- ss_row_id int unsigned NOT NULL,
-
- -- Total number of page views, if hit counters are enabled.
- ss_total_views bigint unsigned default 0,
+ ss_row_id int unsigned NOT NULL PRIMARY KEY,
-- Total number of edits performed.
ss_total_edits bigint unsigned default 0,
-- Number of users that still edit
ss_active_users bigint default '-1',
- -- Deprecated, no longer updated as of 1.5
- ss_admins int default '-1',
-
-- Number of images, equivalent to SELECT COUNT(*) FROM image
ss_images int default 0
) /*$wgDBTableOptions*/;
--- Pointless index to assuage developer superstitions
-CREATE UNIQUE INDEX /*i*/ss_row_id ON /*_*/site_stats (ss_row_id);
-
-
---
--- Stores an ID for every time any article is visited;
--- depending on $wgHitcounterUpdateFreq, it is
--- periodically cleared and the page_counter column
--- in the page table updated for all the articles
--- that have been visited.)
---
-CREATE TABLE /*_*/hitcounter (
- hc_id int unsigned NOT NULL
-) ENGINE=HEAP MAX_ROWS=25000;
-
-
--
-- The internet is full of jerks, alas. Sometimes it's handy
-- to block a vandal or troll account.
-- User name of blocker
ipb_by_text varchar(255) binary NOT NULL default '',
- -- Text comment made by blocker.
- ipb_reason tinyblob NOT NULL,
+ -- Text comment made by blocker. Deprecated in favor of ipb_reason_id
+ ipb_reason varbinary(767) NOT NULL default '',
+
+ -- Key to comment_id. Text comment made by blocker.
+ -- ("DEFAULT 0" is temporary, signaling that ipb_reason should be used)
+ ipb_reason_id bigint unsigned NOT NULL DEFAULT 0,
-- Creation (or refresh) date in standard YMDHMS form.
-- IP blocks expire automatically.
-- Start and end of an address range, in hexadecimal
-- Size chosen to allow IPv6
+ -- FIXME: these fields were originally blank for single-IP blocks,
+ -- but now they are populated. No migration was ever done. They
+ -- should be fixed to be blank again for such blocks (T51504).
ipb_range_start tinyblob NOT NULL,
ipb_range_end tinyblob NOT NULL,
ipb_block_email bool NOT NULL default 0,
-- Block allows user to edit their own talk page
- ipb_allow_usertalk bool NOT NULL default 0
+ ipb_allow_usertalk bool NOT NULL default 0,
+
+ -- ID of the block that caused this block to exist
+ -- Autoblocks set this to the original block
+ -- so that the original block being deleted also
+ -- deletes the autoblocks
+ ipb_parent_block_id int default NULL
) /*$wgDBTableOptions*/;
-- 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.
img_width int NOT NULL default 0,
img_height int NOT NULL default 0,
- -- Extracted EXIF metadata stored as a serialized PHP array.
+ -- 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") 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/
+ -- 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_sha1 varbinary(32) NOT NULL default ''
) /*$wgDBTableOptions*/;
+-- Used by Special:Newimages and ApiQueryAllImages
+CREATE INDEX /*i*/img_user_timestamp ON /*_*/image (img_user,img_timestamp);
CREATE INDEX /*i*/img_usertext_timestamp ON /*_*/image (img_user_text,img_timestamp);
-- Used by Special:ListFiles for sort-by-size
CREATE INDEX /*i*/img_size ON /*_*/image (img_size);
-- Used by Special:Newimages and Special:ListFiles
CREATE INDEX /*i*/img_timestamp ON /*_*/image (img_timestamp);
-- Used in API and duplicate search
-CREATE INDEX /*i*/img_sha1 ON /*_*/image (img_sha1);
+CREATE INDEX /*i*/img_sha1 ON /*_*/image (img_sha1(10));
+-- Used to get media of one type
+CREATE INDEX /*i*/img_media_mime ON /*_*/image (img_media_type,img_major_mime,img_minor_mime);
+
+--
+-- Temporary table to avoid blocking on an alter of image.
+--
+-- On large wikis like Wikimedia Commons, altering the image table is a
+-- months-long process. This table is being created to avoid such an alter, and
+-- will be merged back into image in the future.
+--
+CREATE TABLE /*_*/image_comment_temp (
+ -- Key to img_name (ugh)
+ imgcomment_name varchar(255) binary NOT NULL,
+ -- Key to comment_id
+ imgcomment_description_id bigint unsigned NOT NULL,
+ PRIMARY KEY (imgcomment_name, imgcomment_description_id)
+) /*$wgDBTableOptions*/;
+-- Ensure uniqueness
+CREATE UNIQUE INDEX /*i*/imgcomment_name ON /*_*/image_comment_temp (imgcomment_name);
--
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_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_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 ''
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);
+CREATE INDEX /*i*/oi_sha1 ON /*_*/oldimage (oi_sha1(10));
--
-- 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_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_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 tinyblob,
+ 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
+ fa_deleted tinyint unsigned NOT NULL default 0,
+
+ -- sha1 hash of file content
+ fa_sha1 varbinary(32) NOT NULL default ''
) /*$wgDBTableOptions*/;
-- pick out by image name
CREATE INDEX /*i*/fa_deleted_timestamp ON /*_*/filearchive (fa_deleted_timestamp);
-- sort by uploader
CREATE INDEX /*i*/fa_user_timestamp ON /*_*/filearchive (fa_user_text,fa_timestamp);
+-- find file by sha1, 10 bytes will be enough for hashes to be indexed
+CREATE INDEX /*i*/fa_sha1 ON /*_*/filearchive (fa_sha1(10));
+
+
+--
+-- Store information about newly uploaded files before they're
+-- moved into the actual filestore
+--
+CREATE TABLE /*_*/uploadstash (
+ us_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
+
+ -- the user who uploaded the file.
+ us_user int unsigned NOT NULL,
+
+ -- file key. this is how applications actually search for the file.
+ -- this might go away, or become the primary key.
+ us_key varchar(255) NOT NULL,
+
+ -- the original path
+ us_orig_path varchar(255) NOT NULL,
+
+ -- the temporary path at which the file is actually stored
+ us_path varchar(255) NOT NULL,
+
+ -- which type of upload the file came from (sometimes)
+ us_source_type varchar(50),
+
+ -- the date/time on which the file was added
+ us_timestamp varbinary(14) NOT NULL,
+
+ us_status varchar(50) NOT NULL,
+
+ -- chunk counter starts at 0, current offset is stored in us_size
+ us_chunk_inx int unsigned NULL,
+
+ -- Serialized file properties from FSFile::getProps()
+ us_props blob,
+
+ -- file size in bytes
+ us_size int unsigned NOT NULL,
+ -- this hash comes from FSFile::getSha1Base36(), and is 31 characters
+ us_sha1 varchar(31) NOT NULL,
+ us_mime varchar(255),
+ -- Media type as defined by the MEDIATYPE_xxx constants, should duplicate definition in the image table
+ us_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE", "3D") default NULL,
+ -- image-specific properties
+ us_image_width int unsigned,
+ us_image_height int unsigned,
+ us_image_bits smallint unsigned
+
+) /*$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);
--
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_title varchar(255) binary NOT NULL default '',
-- as in revision...
- rc_comment varchar(255) binary NOT NULL default '',
+ 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
-- 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).
-- 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.
+ -- The type of change entry (RC_EDIT,RC_NEW,RC_LOG,RC_EXTERNAL)
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 '',
+
+ -- 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
-- Visibility of recent changes items, bitfield
rc_deleted tinyint unsigned NOT NULL default 0,
- -- Value corresonding to log_id, specific log entries
+ -- 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,
rc_params blob NULL
) /*$wgDBTableOptions*/;
+-- 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 $wgPutIPinRC=true (false at WMF), possibly used by extensions,
+-- but mostly replaced by CheckUser.
CREATE INDEX /*i*/rc_ip ON /*_*/recentchanges (rc_ip);
+
+-- Probably intended for Special:NewPages namespace filter
CREATE INDEX /*i*/rc_ns_usertext ON /*_*/recentchanges (rc_namespace, rc_user_text);
+
+-- SiteStats active user count, Special:ActiveUsers, Special:NewPages user filter
CREATE INDEX /*i*/rc_user_text ON /*_*/recentchanges (rc_user_text, rc_timestamp);
+-- ApiQueryRecentChanges (T140108)
+CREATE INDEX /*i*/rc_name_type_patrolled_timestamp ON /*_*/recentchanges (rc_namespace, rc_type, rc_patrolled, rc_timestamp);
+
CREATE TABLE /*_*/watchlist (
+ wl_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- Key to user.user_id
wl_user int unsigned NOT NULL,
wl_namespace int NOT NULL default 0,
wl_title varchar(255) binary NOT NULL default '',
- -- Timestamp when user was last sent a notification e-mail;
- -- cleared when the user visits the page.
+ -- Timestamp used to send notification e-mails and show "updated since last visit" markers on
+ -- history and recent changes / watchlist. Set to NULL when the user visits the latest revision
+ -- of the page, which means that they should be sent an e-mail on the next change.
wl_notificationtimestamp varbinary(14)
) /*$wgDBTableOptions*/;
+-- Special:Watchlist
CREATE UNIQUE INDEX /*i*/wl_user ON /*_*/watchlist (wl_user, wl_namespace, wl_title);
-CREATE INDEX /*i*/namespace_title ON /*_*/watchlist (wl_namespace, wl_title);
+-- Special:Movepage (WatchedItemStore::duplicateEntry)
+CREATE INDEX /*i*/namespace_title ON /*_*/watchlist (wl_namespace, wl_title);
---
--- Used by the math module to keep track
--- of previously-rendered items.
---
-CREATE TABLE /*_*/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
-) /*$wgDBTableOptions*/;
-
-CREATE UNIQUE INDEX /*i*/math_inputhash ON /*_*/math (math_inputhash);
+-- ApiQueryWatchlistRaw changed filter
+CREATE INDEX /*i*/wl_user_notificationtimestamp ON /*_*/watchlist (wl_user, wl_notificationtimestamp);
--
-- Munged version of body text
si_text mediumtext NOT NULL
-) ENGINE=MyISAM;
+) ENGINE=MyISAM DEFAULT CHARSET=utf8;
CREATE UNIQUE INDEX /*i*/si_page ON /*_*/searchindex (si_page);
CREATE FULLTEXT INDEX /*i*/si_title ON /*_*/searchindex (si_title);
-- Cache of interwiki transclusion
--
CREATE TABLE /*_*/transcache (
- tc_url varbinary(255) NOT NULL,
+ tc_url varbinary(255) NOT NULL PRIMARY KEY,
tc_contents text,
tc_time binary(14) NOT NULL
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/tc_url_idx ON /*_*/transcache (tc_url);
-
CREATE TABLE /*_*/logging (
-- Log ID, for referring to this specific log entry, probably for deletion and such.
log_page int unsigned NULL,
-- Freeform text. Interpreted as edit history comments.
- log_comment varchar(255) NOT NULL default '',
+ -- 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,
- -- LF separated list of miscellaneous parameters
+ -- 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
) /*$wgDBTableOptions*/;
+-- Special:Log type filter
CREATE INDEX /*i*/type_time ON /*_*/logging (log_type, log_timestamp);
+
+-- Special:Log performer filter
CREATE INDEX /*i*/user_time ON /*_*/logging (log_user, log_timestamp);
+
+-- Special:Log title filter, log extract
CREATE INDEX /*i*/page_time ON /*_*/logging (log_namespace, log_title, log_timestamp);
+
+-- Special:Log unfiltered
CREATE INDEX /*i*/times ON /*_*/logging (log_timestamp);
+
+-- Special:Log filter by performer and type
CREATE INDEX /*i*/log_user_type_time ON /*_*/logging (log_user, log_type, log_timestamp);
+
+-- Apparently just used for a few maintenance pages (findMissingFiles.php, Flow).
+-- Could be removed?
CREATE INDEX /*i*/log_page_id_time ON /*_*/logging (log_page,log_timestamp);
+-- Special:Log action filter
+CREATE INDEX /*i*/type_action ON /*_*/logging (log_type, log_action, log_timestamp);
+
+-- Special:Log filter by type and anonymous performer
+CREATE INDEX /*i*/log_user_text_type_time ON /*_*/logging (log_user_text, log_type, log_timestamp);
+
+-- Special:Log filter by anonymous performer
+CREATE INDEX /*i*/log_user_text_time ON /*_*/logging (log_user_text, log_timestamp);
+
CREATE TABLE /*_*/log_search (
-- The type of ID (rev ID, log ID, rev timestamp, username)
-- The value of the ID
ls_value varchar(255) NOT NULL,
-- Key to log_id
- ls_log_id int unsigned NOT NULL default 0
+ ls_log_id int unsigned NOT NULL default 0,
+ PRIMARY KEY (ls_field,ls_value,ls_log_id)
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/ls_field_val ON /*_*/log_search (ls_field,ls_value,ls_log_id);
CREATE INDEX /*i*/ls_log_id ON /*_*/log_search (ls_log_id);
-CREATE TABLE /*_*/trackbacks (
- tb_id int PRIMARY KEY AUTO_INCREMENT,
- tb_page int REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
- tb_title varchar(255) NOT NULL,
- tb_url blob NOT NULL,
- tb_ex text,
- tb_name varchar(255)
-) /*$wgDBTableOptions*/;
-CREATE INDEX /*i*/tb_page ON /*_*/trackbacks (tb_page);
-
-
-- Jobs performed by parallel apache threads or a command-line daemon
CREATE TABLE /*_*/job (
job_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
job_namespace int NOT NULL,
job_title varchar(255) binary NOT NULL,
+ -- Timestamp of when the job was inserted
+ -- NULL for jobs added before addition of the timestamp
+ job_timestamp varbinary(14) NULL default NULL,
+
-- Any other parameters to the command
-- Stored as a PHP serialized array, or an empty string if there are no parameters
- job_params blob NOT NULL
+ job_params blob NOT NULL,
+
+ -- Random, non-unique, number used for job acquisition (for lock concurrency)
+ job_random integer unsigned NOT NULL default 0,
+
+ -- The number of times this job has been locked
+ job_attempts integer unsigned NOT NULL default 0,
+
+ -- Field that conveys process locks on rows via process UUIDs
+ job_token varbinary(32) NOT NULL default '',
+
+ -- Timestamp when the job was locked
+ job_token_timestamp varbinary(14) NULL default NULL,
+
+ -- Base 36 SHA1 of the job parameters relevant to detecting duplicates
+ job_sha1 varbinary(32) NOT NULL default ''
) /*$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 '',
+ qci_type varbinary(32) NOT NULL default '' PRIMARY KEY,
-- Timestamp of last update
qci_timestamp binary(14) NOT NULL default '19700101000000'
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/qci_type ON /*_*/querycache_info (qci_type);
-
-- For each redirect, this table contains exactly one row defining its target
CREATE TABLE /*_*/redirect (
-- Used for storing page restrictions (i.e. protection levels)
CREATE TABLE /*_*/page_restrictions (
+ -- Field for an ID for this restrictions row (sort-key for Special:ProtectedPages)
+ pr_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- Page to apply restrictions to (Foreign Key to page).
pr_page int NOT NULL,
-- The protection type (edit, move, etc)
-- Whether or not to cascade the protection down to pages transcluded.
pr_cascade tinyint NOT NULL,
-- Field for future support of per-user restriction.
- pr_user int NULL,
+ pr_user int unsigned NULL,
-- Field for time-limited protection.
- pr_expiry varbinary(14) NULL,
- -- Field for an ID for this restrictions row (sort-key for Special:ProtectedPages)
- pr_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT
+ pr_expiry varbinary(14) NULL
) /*$wgDBTableOptions*/;
CREATE UNIQUE INDEX /*i*/pr_pagetype ON /*_*/page_restrictions (pr_page,pr_type);
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
CREATE TABLE /*_*/page_props (
pp_page int NOT NULL,
pp_propname varbinary(60) NOT NULL,
- pp_value blob NOT NULL
+ pp_value blob NOT NULL,
+ pp_sortkey float DEFAULT NULL
) /*$wgDBTableOptions*/;
CREATE UNIQUE INDEX /*i*/pp_page_propname ON /*_*/page_props (pp_page,pp_propname);
-
+CREATE UNIQUE INDEX /*i*/pp_propname_page ON /*_*/page_props (pp_propname,pp_page);
+CREATE UNIQUE INDEX /*i*/pp_propname_sortkey_page ON /*_*/page_props (pp_propname,pp_sortkey,pp_page);
-- A table to log updates, one text key row per update.
CREATE TABLE /*_*/updatelog (
-- A table to track tags for revisions, logs and recent changes.
CREATE TABLE /*_*/change_tag (
+ ct_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- RCID for the change
ct_rc_id int NULL,
-- LOGID for the change
- ct_log_id int NULL,
+ ct_log_id int unsigned NULL,
-- REVID for the change
- ct_rev_id int NULL,
+ ct_rev_id int unsigned NULL,
-- Tag applied
ct_tag varchar(255) NOT NULL,
-- Parameters for the tag, presently unused
-- Rollup table to pull a LIST of tags simply without ugly GROUP_CONCAT
-- that only works on MySQL 4.1+
CREATE TABLE /*_*/tag_summary (
+ ts_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
-- RCID for the change
ts_rc_id int NULL,
-- LOGID for the change
- ts_log_id int NULL,
+ ts_log_id int unsigned NULL,
-- REVID for the change
- ts_rev_id int NULL,
+ ts_rev_id int unsigned NULL,
-- Comma-separated list of tags
ts_tags blob NOT NULL
) /*$wgDBTableOptions*/;
-- Cache key
lc_key varchar(255) NOT NULL,
-- Value
- lc_value mediumblob NOT NULL
-) /*$wgDBTableOptions*/;
-CREATE INDEX /*i*/lc_lang_key ON /*_*/l10n_cache (lc_lang, lc_key);
-
--- Table for storing JSON message blobs for the resource loader
-CREATE TABLE /*_*/msg_resource (
- -- Resource name
- mr_resource varbinary(255) NOT NULL,
- -- Language code
- mr_lang varbinary(32) NOT NULL,
- -- JSON blob
- mr_blob mediumblob NOT NULL,
- -- Timestamp of last update
- mr_timestamp binary(14) NOT NULL
+ lc_value mediumblob NOT NULL,
+ PRIMARY KEY (lc_lang, lc_key)
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/mr_resource_lang ON /*_*/msg_resource (mr_resource, mr_lang);
--- Table for administering which message is contained in which resource
-CREATE TABLE /*_*/msg_resource_links (
- mrl_resource varbinary(255) NOT NULL,
- -- Message key
- mrl_message varbinary(255) NOT NULL
-) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/mrl_message_resource ON /*_*/msg_resource_links (mrl_message, mrl_resource);
-
--- Table for tracking which local files a module depends on that aren't
--- registered directly.
+-- Table caching which local files a module depends on that aren't
+-- registered directly, used for fast retrieval of file dependency.
-- Currently only used for tracking images that CSS depends on
CREATE TABLE /*_*/module_deps (
-- Module name
md_module varbinary(255) NOT NULL,
- -- Skin name
+ -- Module context vary (includes skin and language; called "md_skin" for legacy reasons)
md_skin varbinary(32) NOT NULL,
-- JSON blob with file dependencies
- md_deps mediumblob NOT NULL
+ md_deps mediumblob NOT NULL,
+ PRIMARY KEY (md_module,md_skin)
+) /*$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
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/md_module_skin ON /*_*/module_deps (md_module, md_skin);
+
+CREATE UNIQUE INDEX /*i*/sites_global_key ON /*_*/sites (site_global_key);
+CREATE INDEX /*i*/sites_type ON /*_*/sites (site_type);
+CREATE INDEX /*i*/sites_group ON /*_*/sites (site_group);
+CREATE INDEX /*i*/sites_source ON /*_*/sites (site_source);
+CREATE INDEX /*i*/sites_language ON /*_*/sites (site_language);
+CREATE INDEX /*i*/sites_protocol ON /*_*/sites (site_protocol);
+CREATE INDEX /*i*/sites_domain ON /*_*/sites (site_domain);
+CREATE INDEX /*i*/sites_forward ON /*_*/sites (site_forward);
+
+-- Links local site identifiers to their corresponding site.
+CREATE TABLE /*_*/site_identifiers (
+ -- Key on site.site_id
+ si_site INT UNSIGNED NOT NULL,
+
+ -- local key type, ie 'interwiki' or 'langlink'
+ si_type varbinary(32) NOT NULL,
+
+ -- local key value, ie 'en' or 'wiktionary'
+ si_key varbinary(32) NOT NULL
+) /*$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