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
+) /*$wgDBTableOptions*/;
+
+-- User IDs and names must be unique.
+CREATE UNIQUE INDEX /*i*/actor_user ON /*_*/actor (actor_user);
+CREATE UNIQUE INDEX /*i*/actor_name ON /*_*/actor (actor_name);
+
+
--
-- User permissions have been broken out to a separate table;
-- this allows sites with a shared user table to have different
-- It's possible for multiple revisions to use the same text,
-- for instance revisions where only metadata is altered
-- or a rollback to a previous version.
- rev_text_id int unsigned NOT NULL,
+ rev_text_id int unsigned NOT NULL default 0,
-- Text comment summarizing the change. Deprecated in favor of
-- revision_comment_temp.revcomment_comment_id.
-- Key to user.user_id of the user who made this edit.
-- Stores 0 for anonymous edits and for some mass imports.
+ -- Deprecated in favor of revision_actor_temp.revactor_actor.
rev_user int unsigned NOT NULL default 0,
-- Text username or IP address of the editor.
+ -- Deprecated in favor of revision_actor_temp.revactor_actor.
rev_user_text varchar(255) binary NOT NULL default '',
-- Timestamp of when revision was created
-- Ensure uniqueness
CREATE UNIQUE INDEX /*i*/revcomment_rev ON /*_*/revision_comment_temp (revcomment_rev);
+--
+-- Temporary table to avoid blocking on an alter of revision.
+--
+-- On large wikis like the English Wikipedia, altering the revision table is a
+-- months-long process. This table is being created to avoid such an alter, and
+-- will be merged back into revision in the future.
+--
+CREATE TABLE /*_*/revision_actor_temp (
+ -- Key to rev_id
+ revactor_rev int unsigned NOT NULL,
+ -- Key to actor_id
+ revactor_actor bigint unsigned NOT NULL,
+ -- Copy fields from revision for indexes
+ revactor_timestamp binary(14) NOT NULL default '',
+ revactor_page int unsigned NOT NULL,
+ PRIMARY KEY (revactor_rev, revactor_actor)
+) /*$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
-- Basic revision stuff...
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_user int unsigned NOT NULL default 0, -- Deprecated in favor of ar_actor
+ ar_user_text varchar(255) binary NOT NULL DEFAULT '', -- Deprecated in favor of ar_actor
+ ar_actor bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that ar_user/ar_user_text should be used)
ar_timestamp binary(14) NOT NULL default '',
ar_minor_edit tinyint NOT NULL default 0,
-- Index for Special:DeletedContributions
CREATE INDEX /*i*/ar_usertext_timestamp ON /*_*/archive (ar_user_text,ar_timestamp);
+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 INDEX /*i*/ar_revid 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
+ 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.
+ slot_origin bigint unsigned NOT NULL,
+
+ PRIMARY KEY ( slot_revision_id, slot_role_id )
+) /*$wgDBTableOptions*/;
+
+-- Index for finding revisions that modified a specific slot
+CREATE INDEX /*i*/slot_revision_origin_role ON /*_*/slots (slot_revision_id, slot_origin, slot_role_id);
+
+--
+-- The content table represents content objects. It's primary purpose is to provide the necessary
+-- meta-data for loading and interpreting a serialized data blob to create a content object.
+--
+CREATE TABLE /*_*/content (
+
+ -- ID of the content object
+ content_id bigint unsigned PRIMARY KEY AUTO_INCREMENT,
+
+ -- Nominal size of the content object (not necessarily of the serialized blob)
+ content_size int unsigned NOT NULL,
+
+ -- Nominal hash of the content object (not necessarily of the serialized blob)
+ content_sha1 varbinary(32) NOT NULL,
+
+ -- reference to model_id
+ content_model smallint unsigned NOT NULL,
+
+ -- URL-like address of the content blob
+ content_address varbinary(255) NOT NULL
+) /*$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.
ipb_user int unsigned NOT NULL default 0,
-- User ID who made the block.
- ipb_by int unsigned NOT NULL default 0,
+ ipb_by int unsigned NOT NULL default 0, -- Deprecated in favor of ipb_by_actor
-- User name of blocker
- ipb_by_text varchar(255) binary NOT NULL default '',
+ ipb_by_text varchar(255) binary NOT NULL default '', -- Deprecated in favor of ipb_by_actor
+
+ -- Actor who made the block.
+ ipb_by_actor bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that ipb_by/ipb_by_text should be used)
-- Text comment made by blocker. Deprecated in favor of ipb_reason_id
ipb_reason varbinary(767) NOT NULL default '',
img_description varbinary(767) NOT NULL default '',
-- user_id and user_name of uploader.
+ -- Deprecated in favor of img_actor.
img_user int unsigned NOT NULL default 0,
- img_user_text varchar(255) binary NOT NULL,
+ img_user_text varchar(255) binary NOT NULL DEFAULT '',
+
+ -- actor_id of the uploader.
+ -- ("DEFAULT 0" is temporary, signaling that img_user/img_user_text should be used)
+ img_actor bigint unsigned NOT NULL DEFAULT 0,
-- Time of the upload.
img_timestamp varbinary(14) NOT NULL default '',
-- 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);
+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
oi_bits int NOT NULL default 0,
oi_description varbinary(767) NOT NULL default '', -- Deprecated.
oi_description_id bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that oi_description should be used)
- oi_user int unsigned NOT NULL default 0,
- oi_user_text varchar(255) binary NOT NULL,
+ oi_user int unsigned NOT NULL default 0, -- Deprecated in favor of oi_actor
+ oi_user_text varchar(255) binary NOT NULL DEFAULT '', -- Deprecated in favor of oi_actor
+ oi_actor bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that oi_user/oi_user_text should be used)
oi_timestamp binary(14) NOT NULL default '',
oi_metadata mediumblob NOT NULL,
) /*$wgDBTableOptions*/;
CREATE INDEX /*i*/oi_usertext_timestamp ON /*_*/oldimage (oi_user_text,oi_timestamp);
+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));
fa_minor_mime varbinary(100) default "unknown",
fa_description varbinary(767) default '', -- Deprecated
fa_description_id bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that fa_description should be used)
- fa_user int unsigned default 0,
- fa_user_text varchar(255) binary,
+ fa_user int unsigned default 0, -- Deprecated in favor of fa_actor
+ fa_user_text varchar(255) binary DEFAULT '', -- Deprecated in favor of fa_actor
+ fa_actor bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that fa_user/fa_user_text should be used)
fa_timestamp binary(14) default '',
-- Visibility of deleted revisions, bitfield
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);
+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));
rc_timestamp varbinary(14) NOT NULL default '',
-- As in revision
- rc_user int unsigned NOT NULL default 0,
- rc_user_text varchar(255) binary NOT NULL,
+ rc_user int unsigned NOT NULL default 0, -- Deprecated in favor of rc_actor
+ rc_user_text varchar(255) binary NOT NULL DEFAULT '', -- Deprecated in favor of rc_actor
+ rc_actor bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that rc_user/rc_user_text should be used)
-- When pages are renamed, their RC entries do _not_ change.
rc_namespace int NOT NULL default 0,
-- Probably intended for Special:NewPages namespace filter
CREATE INDEX /*i*/rc_ns_usertext ON /*_*/recentchanges (rc_namespace, rc_user_text);
+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_user_text ON /*_*/recentchanges (rc_user_text, rc_timestamp);
+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);
log_timestamp binary(14) NOT NULL default '19700101000000',
-- The user who performed this action; key to user_id
- log_user int unsigned NOT NULL default 0,
+ log_user int unsigned NOT NULL default 0, -- Deprecated in favor of log_actor
-- Name of the user who performed this action
- log_user_text varchar(255) binary NOT NULL default '',
+ log_user_text varchar(255) binary NOT NULL default '', -- Deprecated in favor of log_actor
+
+ -- The actor who performed this action
+ log_actor bigint unsigned NOT NULL DEFAULT 0, -- ("DEFAULT 0" is temporary, signaling that log_user/log_user_text should be used)
-- Key to the page affected. Where a user is the target,
-- this will point to the user page.
-- Special:Log performer filter
CREATE INDEX /*i*/user_time ON /*_*/logging (log_user, log_timestamp);
+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 filter by performer and type
CREATE INDEX /*i*/log_user_type_time ON /*_*/logging (log_user, log_type, log_timestamp);
+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?
ct_rev_id int unsigned NULL,
-- Tag applied
ct_tag varchar(255) NOT NULL,
- -- Parameters for the tag, presently unused
+ -- Parameters for the tag; used by some extensions
ct_params blob NULL
) /*$wgDBTableOptions*/;