maintenance/mssql/tables.sql

   1 -- Experimental table definitions for Microsoft SQL Server with
   2 -- content-holding fields switched to explicit BINARY charset.
   3 -- ------------------------------------------------------------
   4
   5 -- SQL to create the initial tables for the MediaWiki database.
   6 -- This is read and executed by the install script; you should
   7 -- not have to run it by itself unless doing a manual install.
   8
   9 --
  10 -- General notes:
  11 --
  12 -- The comments in this and other files are
  13 -- replaced with the defined table prefix by the installer
  14 -- and updater scripts. If you are installing or running
  15 -- updates manually, you will need to manually insert the
  16 -- table prefix if any when running these scripts.
  17 --
  18
  19
  20 --
  21 -- The user table contains basic account information,
  22 -- authentication keys, etc.
  23 --
  24 -- Some multi-wiki sites may share a single central user table
  25 -- between separate wikis using the $wgSharedDB setting.
  26 --
  27 -- Note that when a external authentication plugin is used,
  28 -- user table entries still need to be created to store
  29 -- preferences and to key tracking information in the other
  30 -- tables.
  31
  32 -- LINE:53
  33 CREATE TABLE /*_*/mwuser (
  34    user_id           INT           NOT NULL  PRIMARY KEY IDENTITY(0,1),
  35    user_name         NVARCHAR(255)  NOT NULL UNIQUE DEFAULT '',
  36    user_real_name    NVARCHAR(255)  NOT NULL DEFAULT '',
  37    user_password     NVARCHAR(255)  NOT NULL DEFAULT '',
  38    user_newpassword  NVARCHAR(255)  NOT NULL DEFAULT '',
  39    user_newpass_time varchar(14) NULL DEFAULT NULL,
  40    user_email        NVARCHAR(255)  NOT NULL DEFAULT '',
  41    user_options      NVARCHAR(MAX) NOT NULL DEFAULT '',
  42    user_touched      varchar(14)      NOT NULL DEFAULT '',
  43    user_token        NCHAR(32)      NOT NULL DEFAULT '',
  44    user_email_authenticated varchar(14) DEFAULT NULL,
  45    user_email_token  NCHAR(32) DEFAULT '',
  46    user_email_token_expires varchar(14) DEFAULT NULL,
  47    user_registration varchar(14) DEFAULT NULL,
  48    user_editcount    INT NULL DEFAULT NULL,
  49    user_password_expires varchar(14) DEFAULT NULL
  50 );
  51 CREATE UNIQUE INDEX /*i*/user_name ON /*_*/mwuser (user_name);
  52 CREATE INDEX /*i*/user_email_token ON /*_*/mwuser (user_email_token);
  53 CREATE INDEX /*i*/user_email ON /*_*/mwuser (user_email);
  54
  55 -- Insert a dummy user to represent anons
  56 INSERT INTO /*_*/mwuser (user_name) VALUES ('##Anonymous##');
  57
  58 --
  59 -- User permissions have been broken out to a separate table;
  60 -- this allows sites with a shared user table to have different
  61 -- permissions assigned to a user in each project.
  62 --
  63 -- This table replaces the old user_rights field which used a
  64 -- comma-separated nvarchar(max).
  65 CREATE TABLE /*_*/user_groups (
  66    ug_user  INT     NOT NULL REFERENCES /*_*/mwuser(user_id) ON DELETE CASCADE,
  67    ug_group NVARCHAR(255) NOT NULL DEFAULT '',
  68 );
  69 CREATE UNIQUE clustered INDEX /*i*/ug_user_group ON /*_*/user_groups (ug_user, ug_group);
  70 CREATE INDEX /*i*/ug_group ON /*_*/user_groups(ug_group);
  71
  72 -- Stores the groups the user has once belonged to.
  73 -- The user may still belong to these groups (check user_groups).
  74 -- Users are not autopromoted to groups from which they were removed.
  75 CREATE TABLE /*_*/user_former_groups (
  76   ufg_user INT NOT NULL REFERENCES /*_*/mwuser(user_id) ON DELETE CASCADE,
  77   ufg_group nvarchar(255) NOT NULL default ''
  78 );
  79 CREATE UNIQUE INDEX /*i*/ufg_user_group ON /*_*/user_former_groups (ufg_user,ufg_group);
  80
  81 -- Stores notifications of user talk page changes, for the display
  82 -- of the "you have new messages" box
  83 -- Changed user_id column to user_id to avoid clashing with user_id function
  84 CREATE TABLE /*_*/user_newtalk (
  85    user_id INT         NOT NULL REFERENCES /*_*/mwuser(user_id) ON DELETE CASCADE,
  86    user_ip NVARCHAR(40) NOT NULL DEFAULT '',
  87    user_last_timestamp varchar(14) DEFAULT NULL,
  88 );
  89 CREATE INDEX /*i*/un_user_id ON /*_*/user_newtalk (user_id);
  90 CREATE INDEX /*i*/un_user_ip ON /*_*/user_newtalk (user_ip);
  91
  92 --
  93 -- User preferences and other fun stuff
  94 -- replaces old user.user_options nvarchar(max)
  95 --
  96 CREATE TABLE /*_*/user_properties (
  97         up_user INT NOT NULL REFERENCES /*_*/mwuser(user_id) ON DELETE CASCADE,
  98         up_property NVARCHAR(255) NOT NULL,
  99         up_value NVARCHAR(MAX),
 100 );
 101 CREATE UNIQUE CLUSTERED INDEX /*i*/user_properties_user_property ON /*_*/user_properties (up_user,up_property);
 102 CREATE INDEX /*i*/user_properties_property ON /*_*/user_properties (up_property);
 103
 104
 105 --
 106 -- Core of the wiki: each page has an entry here which identifies
 107 -- it by title and contains some essential metadata.
 108 --
 109 CREATE TABLE /*_*/page (
 110    page_id        INT          NOT NULL  PRIMARY KEY IDENTITY(0,1),
 111    page_namespace INT          NOT NULL,
 112    page_title     NVARCHAR(255)  NOT NULL,
 113    page_restrictions NVARCHAR(255) NOT NULL,
 114    page_counter BIGINT            NOT NULL DEFAULT 0,
 115    page_is_redirect BIT           NOT NULL DEFAULT 0,
 116    page_is_new BIT                NOT NULL DEFAULT 0,
 117    page_random real     NOT NULL DEFAULT RAND(),
 118    page_touched varchar(14) NOT NULL default '',
 119    page_links_updated varchar(14) DEFAULT NULL,
 120    page_latest INT, -- FK inserted later
 121    page_len INT NOT NULL,
 122    page_content_model nvarchar(32) default null,
 123    page_lang VARBINARY(35) DEFAULT NULL
 124 );
 125 CREATE UNIQUE INDEX /*i*/name_title ON /*_*/page (page_namespace,page_title);
 126 CREATE INDEX /*i*/page_random ON /*_*/page (page_random);
 127 CREATE INDEX /*i*/page_len ON /*_*/page (page_len);
 128 CREATE INDEX /*i*/page_redirect_namespace_len ON /*_*/page (page_is_redirect, page_namespace, page_len);
 129
 130 -- insert a dummy page
 131 INSERT INTO /*_*/page (page_namespace, page_title, page_restrictions, page_latest, page_len) VALUES (-1,'','',0,0);
 132
 133 --
 134 -- Every edit of a page creates also a revision row.
 135 -- This stores metadata about the revision, and a reference
 136 -- to the TEXT storage backend.
 137 --
 138 CREATE TABLE /*_*/revision (
 139    rev_id INT NOT NULL UNIQUE IDENTITY(0,1),
 140    rev_page INT NOT NULL REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
 141    rev_text_id INT  NOT NULL, -- FK added later
 142    rev_comment NVARCHAR(255) NOT NULL,
 143    rev_user INT REFERENCES /*_*/mwuser(user_id) ON DELETE SET NULL,
 144    rev_user_text NVARCHAR(255) NOT NULL DEFAULT '',
 145    rev_timestamp varchar(14) NOT NULL default '',
 146    rev_minor_edit BIT NOT NULL DEFAULT 0,
 147    rev_deleted TINYINT  NOT NULL DEFAULT 0,
 148    rev_len INT,
 149    rev_parent_id INT DEFAULT NULL REFERENCES /*_*/revision(rev_id),
 150    rev_sha1 nvarchar(32) not null default '',
 151    rev_content_model nvarchar(32) default null,
 152    rev_content_format nvarchar(64) default null
 153 );
 154 CREATE UNIQUE CLUSTERED INDEX /*i*/rev_page_id ON /*_*/revision (rev_page, rev_id);
 155 CREATE INDEX /*i*/rev_timestamp ON /*_*/revision (rev_timestamp);
 156 CREATE INDEX /*i*/page_timestamp ON /*_*/revision (rev_page,rev_timestamp);
 157 CREATE INDEX /*i*/user_timestamp ON /*_*/revision (rev_user,rev_timestamp);
 158 CREATE INDEX /*i*/usertext_timestamp ON /*_*/revision (rev_user_text,rev_timestamp);
 159 CREATE INDEX /*i*/page_user_timestamp ON /*_*/revision (rev_page,rev_user,rev_timestamp);
 160
 161 -- insert a dummy revision
 162 INSERT INTO /*_*/revision (rev_page,rev_text_id,rev_comment,rev_user,rev_len) VALUES (0,0,'',0,0);
 163
 164 ALTER TABLE /*_*/page ADD CONSTRAINT FK_page_latest_page_id FOREIGN KEY (page_latest) REFERENCES /*_*/revision(rev_id);
 165
 166 --
 167 -- Holds TEXT of individual page revisions.
 168 --
 169 -- Field names are a holdover from the 'old' revisions table in
 170 -- MediaWiki 1.4 and earlier: an upgrade will transform that
 171 -- table INTo the 'text' table to minimize unnecessary churning
 172 -- and downtime. If upgrading, the other fields will be left unused.
 173 CREATE TABLE /*_*/text (
 174    old_id INT NOT NULL  PRIMARY KEY IDENTITY(0,1),
 175    old_text nvarchar(max) NOT NULL,
 176    old_flags NVARCHAR(255) NOT NULL,
 177 );
 178
 179 -- insert a dummy text
 180 INSERT INTO /*_*/text (old_text,old_flags) VALUES ('','');
 181
 182 ALTER TABLE /*_*/revision ADD CONSTRAINT FK_rev_text_id_old_id FOREIGN KEY (rev_text_id) REFERENCES /*_*/text(old_id) ON DELETE CASCADE;
 183
 184 --
 185 -- Holding area for deleted articles, which may be viewed
 186 -- or restored by admins through the Special:Undelete interface.
 187 -- The fields generally correspond to the page, revision, and text
 188 -- fields, with several caveats.
 189 -- Cannot reasonably create views on this table, due to the presence of TEXT
 190 -- columns.
 191 CREATE TABLE /*_*/archive (
 192    ar_id int NOT NULL PRIMARY KEY IDENTITY,
 193    ar_namespace SMALLINT NOT NULL DEFAULT 0,
 194    ar_title NVARCHAR(255) NOT NULL DEFAULT '',
 195    ar_text NVARCHAR(MAX) NOT NULL,
 196    ar_comment NVARCHAR(255) NOT NULL,
 197    ar_user INT REFERENCES /*_*/mwuser(user_id) ON DELETE SET NULL,
 198    ar_user_text NVARCHAR(255) NOT NULL,
 199    ar_timestamp varchar(14) NOT NULL default '',
 200    ar_minor_edit BIT NOT NULL DEFAULT 0,
 201    ar_flags NVARCHAR(255) NOT NULL,
 202    ar_rev_id INT NULL, -- NOT a FK, the row gets deleted from revision and moved here
 203    ar_text_id INT REFERENCES /*_*/text(old_id) ON DELETE CASCADE,
 204    ar_deleted TINYINT NOT NULL DEFAULT 0,
 205    ar_len INT,
 206    ar_page_id INT NULL, -- NOT a FK, the row gets deleted from page and moved here
 207    ar_parent_id INT NULL REFERENCES /*_*/revision(rev_id),
 208    ar_sha1 nvarchar(32) default null,
 209    ar_content_model nvarchar(32) DEFAULT NULL,
 210   ar_content_format nvarchar(64) DEFAULT NULL
 211 );
 212 CREATE INDEX /*i*/name_title_timestamp ON /*_*/archive (ar_namespace,ar_title,ar_timestamp);
 213 CREATE INDEX /*i*/ar_usertext_timestamp ON /*_*/archive (ar_user_text,ar_timestamp);
 214 CREATE INDEX /*i*/ar_revid ON /*_*/archive (ar_rev_id);
 215
 216
 217 --
 218 -- Track page-to-page hyperlinks within the wiki.
 219 --
 220 CREATE TABLE /*_*/pagelinks (
 221    pl_from INT NOT NULL REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
 222    pl_namespace INT NOT NULL DEFAULT 0,
 223    pl_title NVARCHAR(255) NOT NULL DEFAULT '',
 224 );
 225 CREATE UNIQUE INDEX /*i*/pl_from ON /*_*/pagelinks (pl_from,pl_namespace,pl_title);
 226 CREATE UNIQUE INDEX /*i*/pl_namespace ON /*_*/pagelinks (pl_namespace,pl_title,pl_from);
 227
 228
 229 --
 230 -- Track template inclusions.
 231 --
 232 CREATE TABLE /*_*/templatelinks (
 233   tl_from int NOT NULL REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
 234   tl_namespace int NOT NULL default 0,
 235   tl_title nvarchar(255) NOT NULL default ''
 236 );
 237
 238 CREATE UNIQUE INDEX /*i*/tl_from ON /*_*/templatelinks (tl_from,tl_namespace,tl_title);
 239 CREATE UNIQUE INDEX /*i*/tl_namespace ON /*_*/templatelinks (tl_namespace,tl_title,tl_from);
 240
 241
 242 --
 243 -- Track links to images *used inline*
 244 -- We don't distinguish live from broken links here, so
 245 -- they do not need to be changed on upload/removal.
 246 --
 247 CREATE TABLE /*_*/imagelinks (
 248   -- Key to page_id of the page containing the image / media link.
 249   il_from int NOT NULL REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
 250
 251   -- Filename of target image.
 252   -- This is also the page_title of the file's description page;
 253   -- all such pages are in namespace 6 (NS_FILE).
 254   il_to nvarchar(255) NOT NULL default ''
 255 );
 256
 257 CREATE UNIQUE INDEX /*i*/il_from ON /*_*/imagelinks (il_from,il_to);
 258 CREATE UNIQUE INDEX /*i*/il_to ON /*_*/imagelinks (il_to,il_from);
 259
 260 --
 261 -- Track category inclusions *used inline*
 262 -- This tracks a single level of category membership
 263 --
 264 CREATE TABLE /*_*/categorylinks (
 265   -- Key to page_id of the page defined as a category member.
 266   cl_from int NOT NULL REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
 267
 268   -- Name of the category.
 269   -- This is also the page_title of the category's description page;
 270   -- all such pages are in namespace 14 (NS_CATEGORY).
 271   cl_to nvarchar(255) NOT NULL default '',
 272
 273   -- A binary string obtained by applying a sortkey generation algorithm
 274   -- (Collation::getSortKey()) to page_title, or cl_sortkey_prefix . "\n"
 275   -- . page_title if cl_sortkey_prefix is nonempty.
 276   cl_sortkey varbinary(230) NOT NULL default 0x,
 277
 278   -- A prefix for the raw sortkey manually specified by the user, either via
 279   -- [[Category:Foo|prefix]] or {{defaultsort:prefix}}.  If nonempty, it's
 280   -- concatenated with a line break followed by the page title before the sortkey
 281   -- conversion algorithm is run.  We store this so that we can update
 282   -- collations without reparsing all pages.
 283   -- Note: If you change the length of this field, you also need to change
 284   -- code in LinksUpdate.php. See bug 25254.
 285   cl_sortkey_prefix varbinary(255) NOT NULL default 0x,
 286
 287   -- This isn't really used at present. Provided for an optional
 288   -- sorting method by approximate addition time.
 289   cl_timestamp varchar(14) NOT NULL,
 290
 291   -- Stores $wgCategoryCollation at the time cl_sortkey was generated.  This
 292   -- can be used to install new collation versions, tracking which rows are not
 293   -- yet updated.  '' means no collation, this is a legacy row that needs to be
 294   -- updated by updateCollation.php.  In the future, it might be possible to
 295   -- specify different collations per category.
 296   cl_collation nvarchar(32) NOT NULL default '',
 297
 298   -- Stores whether cl_from is a category, file, or other page, so we can
 299   -- paginate the three categories separately.  This never has to be updated
 300   -- after the page is created, since none of these page types can be moved to
 301   -- any other.
 302   -- SQL server doesn't have enums, so we approximate with this
 303   cl_type varchar(10) NOT NULL default 'page' CHECK (cl_type IN('page', 'subcat', 'file'))
 304 );
 305
 306 CREATE UNIQUE INDEX /*i*/cl_from ON /*_*/categorylinks (cl_from,cl_to);
 307
 308 -- We always sort within a given category, and within a given type.  FIXME:
 309 -- Formerly this index didn't cover cl_type (since that didn't exist), so old
 310 -- callers won't be using an index: fix this?
 311 CREATE INDEX /*i*/cl_sortkey ON /*_*/categorylinks (cl_to,cl_type,cl_sortkey,cl_from);
 312
 313 -- Used by the API (and some extensions)
 314 CREATE INDEX /*i*/cl_timestamp ON /*_*/categorylinks (cl_to,cl_timestamp);
 315
 316 -- FIXME: Not used, delete this
 317 CREATE INDEX /*i*/cl_collation ON /*_*/categorylinks (cl_collation);
 318
 319 --
 320 -- Track all existing categories.  Something is a category if 1) it has an en-
 321 -- try somewhere in categorylinks, or 2) it once did.  Categories might not
 322 -- have corresponding pages, so they need to be tracked separately.
 323 --
 324 CREATE TABLE /*_*/category (
 325   -- Primary key
 326   cat_id int NOT NULL PRIMARY KEY IDENTITY,
 327
 328   -- Name of the category, in the same form as page_title (with underscores).
 329   -- If there is a category page corresponding to this category, by definition,
 330   -- it has this name (in the Category namespace).
 331   cat_title nvarchar(255) NOT NULL,
 332
 333   -- The numbers of member pages (including categories and media), subcatego-
 334   -- ries, and Image: namespace members, respectively.  These are signed to
 335   -- make underflow more obvious.  We make the first number include the second
 336   -- two for better sorting: subtracting for display is easy, adding for order-
 337   -- ing is not.
 338   cat_pages int NOT NULL default 0,
 339   cat_subcats int NOT NULL default 0,
 340   cat_files int NOT NULL default 0
 341 );
 342
 343 CREATE UNIQUE INDEX /*i*/cat_title ON /*_*/category (cat_title);
 344
 345 -- For Special:Mostlinkedcategories
 346 CREATE INDEX /*i*/cat_pages ON /*_*/category (cat_pages);
 347
 348
 349 --
 350 -- Track links to external URLs
 351 --
 352 CREATE TABLE /*_*/externallinks (
 353   -- Primary key
 354   el_id int NOT NULL PRIMARY KEY IDENTITY,
 355
 356   -- page_id of the referring page
 357   el_from int NOT NULL REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
 358
 359   -- The URL
 360   el_to nvarchar(max) NOT NULL,
 361
 362   -- In the case of HTTP URLs, this is the URL with any username or password
 363   -- removed, and with the labels in the hostname reversed and converted to
 364   -- lower case. An extra dot is added to allow for matching of either
 365   -- example.com or *.example.com in a single scan.
 366   -- Example:
 367   --      http://user:password@sub.example.com/page.html
 368   --   becomes
 369   --      http://com.example.sub./page.html
 370   -- which allows for fast searching for all pages under example.com with the
 371   -- clause:
 372   --      WHERE el_index LIKE 'http://com.example.%'
 373   el_index nvarchar(450) NOT NULL
 374 );
 375
 376 CREATE INDEX /*i*/el_from ON /*_*/externallinks (el_from);
 377 CREATE INDEX /*i*/el_index ON /*_*/externallinks (el_index);
 378
 379 --
 380 -- Track interlanguage links
 381 --
 382 CREATE TABLE /*_*/langlinks (
 383   -- page_id of the referring page
 384   ll_from int NOT NULL REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
 385
 386   -- Language code of the target
 387   ll_lang nvarchar(20) NOT NULL default '',
 388
 389   -- Title of the target, including namespace
 390   ll_title nvarchar(255) NOT NULL default ''
 391 );
 392
 393 CREATE UNIQUE INDEX /*i*/ll_from ON /*_*/langlinks (ll_from, ll_lang);
 394 CREATE INDEX /*i*/ll_lang ON /*_*/langlinks (ll_lang, ll_title);
 395
 396
 397 --
 398 -- Track inline interwiki links
 399 --
 400 CREATE TABLE /*_*/iwlinks (
 401   -- page_id of the referring page
 402   iwl_from int NOT NULL REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
 403
 404   -- Interwiki prefix code of the target
 405   iwl_prefix nvarchar(20) NOT NULL default '',
 406
 407   -- Title of the target, including namespace
 408   iwl_title nvarchar(255) NOT NULL default ''
 409 );
 410
 411 CREATE UNIQUE INDEX /*i*/iwl_from ON /*_*/iwlinks (iwl_from, iwl_prefix, iwl_title);
 412 CREATE INDEX /*i*/iwl_prefix_title_from ON /*_*/iwlinks (iwl_prefix, iwl_title, iwl_from);
 413 CREATE INDEX /*i*/iwl_prefix_from_title ON /*_*/iwlinks (iwl_prefix, iwl_from, iwl_title);
 414
 415
 416 --
 417 -- Contains a single row with some aggregate info
 418 -- on the state of the site.
 419 --
 420 CREATE TABLE /*_*/site_stats (
 421   -- The single row should contain 1 here.
 422   ss_row_id int NOT NULL,
 423
 424   -- Total number of page views, if hit counters are enabled.
 425   ss_total_views bigint default 0,
 426
 427   -- Total number of edits performed.
 428   ss_total_edits bigint default 0,
 429
 430   -- An approximate count of pages matching the following criteria:
 431   -- * in namespace 0
 432   -- * not a redirect
 433   -- * contains the text '[['
 434   -- See Article::isCountable() in includes/Article.php
 435   ss_good_articles bigint default 0,
 436
 437   -- Total pages, theoretically equal to SELECT COUNT(*) FROM page; except faster
 438   ss_total_pages bigint default '-1',
 439
 440   -- Number of users, theoretically equal to SELECT COUNT(*) FROM user;
 441   ss_users bigint default '-1',
 442
 443   -- Number of users that still edit
 444   ss_active_users bigint default '-1',
 445
 446   -- Number of images, equivalent to SELECT COUNT(*) FROM image
 447   ss_images int default 0
 448 );
 449
 450 -- Pointless index to assuage developer superstitions
 451 CREATE UNIQUE INDEX /*i*/ss_row_id ON /*_*/site_stats (ss_row_id);
 452
 453
 454 --
 455 -- Stores an ID for every time any article is visited;
 456 -- depending on $wgHitcounterUpdateFreq, it is
 457 -- periodically cleared and the page_counter column
 458 -- in the page table updated for all the articles
 459 -- that have been visited.)
 460 --
 461 CREATE TABLE /*_*/hitcounter (
 462   hc_id int NOT NULL
 463 );
 464
 465
 466 --
 467 -- The internet is full of jerks, alas. Sometimes it's handy
 468 -- to block a vandal or troll account.
 469 --
 470 CREATE TABLE /*_*/ipblocks (
 471   -- Primary key, introduced for privacy.
 472   ipb_id int NOT NULL PRIMARY KEY IDENTITY,
 473
 474   -- Blocked IP address in dotted-quad form or user name.
 475   ipb_address nvarchar(255) NOT NULL,
 476
 477   -- Blocked user ID or 0 for IP blocks.
 478   ipb_user int REFERENCES /*_*/mwuser(user_id),
 479
 480   -- User ID who made the block.
 481   ipb_by int REFERENCES /*_*/mwuser(user_id) ON DELETE CASCADE,
 482
 483   -- User name of blocker
 484   ipb_by_text nvarchar(255) NOT NULL default '',
 485
 486   -- Text comment made by blocker.
 487   ipb_reason nvarchar(255) NOT NULL,
 488
 489   -- Creation (or refresh) date in standard YMDHMS form.
 490   -- IP blocks expire automatically.
 491   ipb_timestamp varchar(14) NOT NULL default '',
 492
 493   -- Indicates that the IP address was banned because a banned
 494   -- user accessed a page through it. If this is 1, ipb_address
 495   -- will be hidden, and the block identified by block ID number.
 496   ipb_auto bit NOT NULL default 0,
 497
 498   -- If set to 1, block applies only to logged-out users
 499   ipb_anon_only bit NOT NULL default 0,
 500
 501   -- Block prevents account creation from matching IP addresses
 502   ipb_create_account bit NOT NULL default 1,
 503
 504   -- Block triggers autoblocks
 505   ipb_enable_autoblock bit NOT NULL default 1,
 506
 507   -- Time at which the block will expire.
 508   -- May be "infinity"
 509   ipb_expiry varchar(14) NOT NULL,
 510
 511   -- Start and end of an address range, in hexadecimal
 512   -- Size chosen to allow IPv6
 513   -- FIXME: these fields were originally blank for single-IP blocks,
 514   -- but now they are populated. No migration was ever done. They
 515   -- should be fixed to be blank again for such blocks (bug 49504).
 516   ipb_range_start varchar(255) NOT NULL,
 517   ipb_range_end varchar(255) NOT NULL,
 518
 519   -- Flag for entries hidden from users and Sysops
 520   ipb_deleted bit NOT NULL default 0,
 521
 522   -- Block prevents user from accessing Special:Emailuser
 523   ipb_block_email bit NOT NULL default 0,
 524
 525   -- Block allows user to edit their own talk page
 526   ipb_allow_usertalk bit NOT NULL default 0,
 527
 528   -- ID of the block that caused this block to exist
 529   -- Autoblocks set this to the original block
 530   -- so that the original block being deleted also
 531   -- deletes the autoblocks
 532   ipb_parent_block_id int default NULL REFERENCES /*_*/ipblocks(ipb_id)
 533
 534 );
 535
 536 -- Unique index to support "user already blocked" messages
 537 -- Any new options which prevent collisions should be included
 538 CREATE UNIQUE INDEX /*i*/ipb_address ON /*_*/ipblocks (ipb_address, ipb_user, ipb_auto, ipb_anon_only);
 539
 540 CREATE INDEX /*i*/ipb_user ON /*_*/ipblocks (ipb_user);
 541 CREATE INDEX /*i*/ipb_range ON /*_*/ipblocks (ipb_range_start, ipb_range_end);
 542 CREATE INDEX /*i*/ipb_timestamp ON /*_*/ipblocks (ipb_timestamp);
 543 CREATE INDEX /*i*/ipb_expiry ON /*_*/ipblocks (ipb_expiry);
 544 CREATE INDEX /*i*/ipb_parent_block_id ON /*_*/ipblocks (ipb_parent_block_id);
 545
 546
 547 --
 548 -- Uploaded images and other files.
 549 --
 550 CREATE TABLE /*_*/image (
 551   -- Filename.
 552   -- This is also the title of the associated description page,
 553   -- which will be in namespace 6 (NS_FILE).
 554   img_name varbinary(255) NOT NULL default 0x PRIMARY KEY,
 555
 556   -- File size in bytes.
 557   img_size int NOT NULL default 0,
 558
 559   -- For images, size in pixels.
 560   img_width int NOT NULL default 0,
 561   img_height int NOT NULL default 0,
 562
 563   -- Extracted Exif metadata stored as a serialized PHP array.
 564   img_metadata varbinary(max) NOT NULL,
 565
 566   -- For images, bits per pixel if known.
 567   img_bits int NOT NULL default 0,
 568
 569   -- Media type as defined by the MEDIATYPE_xxx constants
 570   img_media_type varchar(16) default null check (img_media_type in('UNKNOWN', 'BITMAP', 'DRAWING', 'AUDIO', 'VIDEO', 'MULTIMEDIA', 'OFFICE', 'TEXT', 'EXECUTABLE', 'ARCHIVE')),
 571
 572   -- major part of a MIME media type as defined by IANA
 573   -- see http://www.iana.org/assignments/media-types/
 574   img_major_mime varchar(16) not null default 'unknown' check (img_major_mime IN('unknown', 'application', 'audio', 'image', 'text', 'video', 'message', 'model', 'multipart')),
 575
 576   -- minor part of a MIME media type as defined by IANA
 577   -- the minor parts are not required to adher to any standard
 578   -- but should be consistent throughout the database
 579   -- see http://www.iana.org/assignments/media-types/
 580   img_minor_mime nvarchar(100) NOT NULL default 'unknown',
 581
 582   -- Description field as entered by the uploader.
 583   -- This is displayed in image upload history and logs.
 584   img_description nvarchar(255) NOT NULL,
 585
 586   -- user_id and user_name of uploader.
 587   img_user int REFERENCES /*_*/mwuser(user_id) ON DELETE SET NULL,
 588   img_user_text nvarchar(255) NOT NULL,
 589
 590   -- Time of the upload.
 591   img_timestamp nvarchar(14) NOT NULL default '',
 592
 593   -- SHA-1 content hash in base-36
 594   img_sha1 nvarchar(32) NOT NULL default ''
 595 );
 596
 597 CREATE INDEX /*i*/img_usertext_timestamp ON /*_*/image (img_user_text,img_timestamp);
 598 -- Used by Special:ListFiles for sort-by-size
 599 CREATE INDEX /*i*/img_size ON /*_*/image (img_size);
 600 -- Used by Special:Newimages and Special:ListFiles
 601 CREATE INDEX /*i*/img_timestamp ON /*_*/image (img_timestamp);
 602 -- Used in API and duplicate search
 603 CREATE INDEX /*i*/img_sha1 ON /*_*/image (img_sha1);
 604 -- Used to get media of one type
 605 CREATE INDEX /*i*/img_media_mime ON /*_*/image (img_media_type,img_major_mime,img_minor_mime);
 606
 607
 608 --
 609 -- Previous revisions of uploaded files.
 610 -- Awkwardly, image rows have to be moved into
 611 -- this table at re-upload time.
 612 --
 613 CREATE TABLE /*_*/oldimage (
 614   -- Base filename: key to image.img_name
 615   oi_name varbinary(255) NOT NULL default 0x REFERENCES /*_*/image(img_name) ON DELETE CASCADE ON UPDATE CASCADE,
 616
 617   -- Filename of the archived file.
 618   -- This is generally a timestamp and '!' prepended to the base name.
 619   oi_archive_name varbinary(255) NOT NULL default 0x,
 620
 621   -- Other fields as in image...
 622   oi_size int NOT NULL default 0,
 623   oi_width int NOT NULL default 0,
 624   oi_height int NOT NULL default 0,
 625   oi_bits int NOT NULL default 0,
 626   oi_description nvarchar(255) NOT NULL,
 627   oi_user int REFERENCES /*_*/mwuser(user_id),
 628   oi_user_text nvarchar(255) NOT NULL,
 629   oi_timestamp varchar(14) NOT NULL default '',
 630
 631   oi_metadata nvarchar(max) NOT NULL,
 632   oi_media_type varchar(16) default null check (oi_media_type IN('UNKNOWN', 'BITMAP', 'DRAWING', 'AUDIO', 'VIDEO', 'MULTIMEDIA', 'OFFICE', 'TEXT', 'EXECUTABLE', 'ARCHIVE')),
 633   oi_major_mime varchar(16) not null default 'unknown' check (oi_major_mime IN('unknown', 'application', 'audio', 'image', 'text', 'video', 'message', 'model', 'multipart')),
 634   oi_minor_mime nvarchar(100) NOT NULL default 'unknown',
 635   oi_deleted tinyint NOT NULL default 0,
 636   oi_sha1 nvarchar(32) NOT NULL default ''
 637 );
 638
 639 CREATE INDEX /*i*/oi_usertext_timestamp ON /*_*/oldimage (oi_user_text,oi_timestamp);
 640 CREATE INDEX /*i*/oi_name_timestamp ON /*_*/oldimage (oi_name,oi_timestamp);
 641 -- oi_archive_name truncated to 14 to avoid key length overflow
 642 CREATE INDEX /*i*/oi_name_archive_name ON /*_*/oldimage (oi_name,oi_archive_name);
 643 CREATE INDEX /*i*/oi_sha1 ON /*_*/oldimage (oi_sha1);
 644
 645
 646 --
 647 -- Record of deleted file data
 648 --
 649 CREATE TABLE /*_*/filearchive (
 650   -- Unique row id
 651   fa_id int NOT NULL PRIMARY KEY IDENTITY,
 652
 653   -- Original base filename; key to image.img_name, page.page_title, etc
 654   fa_name nvarchar(255) NOT NULL default '',
 655
 656   -- Filename of archived file, if an old revision
 657   fa_archive_name nvarchar(255) default '',
 658
 659   -- Which storage bin (directory tree or object store) the file data
 660   -- is stored in. Should be 'deleted' for files that have been deleted;
 661   -- any other bin is not yet in use.
 662   fa_storage_group nvarchar(16),
 663
 664   -- SHA-1 of the file contents plus extension, used as a key for storage.
 665   -- eg 8f8a562add37052a1848ff7771a2c515db94baa9.jpg
 666   --
 667   -- If NULL, the file was missing at deletion time or has been purged
 668   -- from the archival storage.
 669   fa_storage_key nvarchar(64) default '',
 670
 671   -- Deletion information, if this file is deleted.
 672   fa_deleted_user int,
 673   fa_deleted_timestamp varchar(14) default '',
 674   fa_deleted_reason nvarchar(max),
 675
 676   -- Duped fields from image
 677   fa_size int default 0,
 678   fa_width int default 0,
 679   fa_height int default 0,
 680   fa_metadata nvarchar(max),
 681   fa_bits int default 0,
 682   fa_media_type varchar(16) default null check (fa_media_type in('UNKNOWN', 'BITMAP', 'DRAWING', 'AUDIO', 'VIDEO', 'MULTIMEDIA', 'OFFICE', 'TEXT', 'EXECUTABLE', 'ARCHIVE')),
 683   fa_major_mime varchar(16) not null default 'unknown' check (fa_major_mime in('unknown', 'application', 'audio', 'image', 'text', 'video', 'message', 'model', 'multipart')),
 684   fa_minor_mime nvarchar(100) default 'unknown',
 685   fa_description nvarchar(255),
 686   fa_user int default 0 REFERENCES /*_*/mwuser(user_id) ON DELETE SET NULL,
 687   fa_user_text nvarchar(255),
 688   fa_timestamp varchar(14) default '',
 689
 690   -- Visibility of deleted revisions, bitfield
 691   fa_deleted tinyint NOT NULL default 0,
 692
 693   -- sha1 hash of file content
 694   fa_sha1 nvarchar(32) NOT NULL default ''
 695 );
 696
 697 -- pick out by image name
 698 CREATE INDEX /*i*/fa_name ON /*_*/filearchive (fa_name, fa_timestamp);
 699 -- pick out dupe files
 700 CREATE INDEX /*i*/fa_storage_group ON /*_*/filearchive (fa_storage_group, fa_storage_key);
 701 -- sort by deletion time
 702 CREATE INDEX /*i*/fa_deleted_timestamp ON /*_*/filearchive (fa_deleted_timestamp);
 703 -- sort by uploader
 704 CREATE INDEX /*i*/fa_user_timestamp ON /*_*/filearchive (fa_user_text,fa_timestamp);
 705 -- find file by sha1, 10 bytes will be enough for hashes to be indexed
 706 CREATE INDEX /*i*/fa_sha1 ON /*_*/filearchive (fa_sha1);
 707
 708
 709 --
 710 -- Store information about newly uploaded files before they're
 711 -- moved into the actual filestore
 712 --
 713 CREATE TABLE /*_*/uploadstash (
 714   us_id int NOT NULL PRIMARY KEY IDENTITY,
 715
 716   -- the user who uploaded the file.
 717   us_user int REFERENCES /*_*/mwuser(user_id) ON DELETE SET NULL,
 718
 719   -- file key. this is how applications actually search for the file.
 720   -- this might go away, or become the primary key.
 721   us_key nvarchar(255) NOT NULL,
 722
 723   -- the original path
 724   us_orig_path nvarchar(255) NOT NULL,
 725
 726   -- the temporary path at which the file is actually stored
 727   us_path nvarchar(255) NOT NULL,
 728
 729   -- which type of upload the file came from (sometimes)
 730   us_source_type nvarchar(50),
 731
 732   -- the date/time on which the file was added
 733   us_timestamp varchar(14) NOT NULL,
 734
 735   us_status nvarchar(50) NOT NULL,
 736
 737   -- chunk counter starts at 0, current offset is stored in us_size
 738   us_chunk_inx int NULL,
 739
 740   -- Serialized file properties from FSFile::getProps()
 741   us_props nvarchar(max),
 742
 743   -- file size in bytes
 744   us_size int NOT NULL,
 745   -- this hash comes from FSFile::getSha1Base36(), and is 31 characters
 746   us_sha1 nvarchar(31) NOT NULL,
 747   us_mime nvarchar(255),
 748   -- Media type as defined by the MEDIATYPE_xxx constants, should duplicate definition in the image table
 749   us_media_type varchar(16) default null check (us_media_type in('UNKNOWN', 'BITMAP', 'DRAWING', 'AUDIO', 'VIDEO', 'MULTIMEDIA', 'OFFICE', 'TEXT', 'EXECUTABLE', 'ARCHIVE')),
 750   -- image-specific properties
 751   us_image_width int,
 752   us_image_height int,
 753   us_image_bits smallint
 754
 755 );
 756
 757 -- sometimes there's a delete for all of a user's stuff.
 758 CREATE INDEX /*i*/us_user ON /*_*/uploadstash (us_user);
 759 -- pick out files by key, enforce key uniqueness
 760 CREATE UNIQUE INDEX /*i*/us_key ON /*_*/uploadstash (us_key);
 761 -- the abandoned upload cleanup script needs this
 762 CREATE INDEX /*i*/us_timestamp ON /*_*/uploadstash (us_timestamp);
 763
 764
 765 --
 766 -- Primarily a summary table for Special:Recentchanges,
 767 -- this table contains some additional info on edits from
 768 -- the last few days, see Article::editUpdates()
 769 --
 770 CREATE TABLE /*_*/recentchanges (
 771   rc_id int NOT NULL PRIMARY KEY IDENTITY,
 772   rc_timestamp varchar(14) not null default '',
 773
 774   -- This is no longer used
 775   -- Field kept in database for downgrades
 776   -- @todo: add drop patch with 1.24
 777   rc_cur_time varchar(14) NOT NULL default '',
 778
 779   -- As in revision
 780   rc_user int NOT NULL default 0 REFERENCES /*_*/mwuser(user_id),
 781   rc_user_text nvarchar(255) NOT NULL,
 782
 783   -- When pages are renamed, their RC entries do _not_ change.
 784   rc_namespace int NOT NULL default 0,
 785   rc_title nvarchar(255) NOT NULL default '',
 786
 787   -- as in revision...
 788   rc_comment nvarchar(255) NOT NULL default '',
 789   rc_minor bit NOT NULL default 0,
 790
 791   -- Edits by user accounts with the 'bot' rights key are
 792   -- marked with a 1 here, and will be hidden from the
 793   -- default view.
 794   rc_bot bit NOT NULL default 0,
 795
 796   -- Set if this change corresponds to a page creation
 797   rc_new bit NOT NULL default 0,
 798
 799   -- Key to page_id (was cur_id prior to 1.5).
 800   -- This will keep links working after moves while
 801   -- retaining the at-the-time name in the changes list.
 802   rc_cur_id int REFERENCES /*_*/page(page_id),
 803
 804   -- rev_id of the given revision
 805   rc_this_oldid int REFERENCES /*_*/revision(rev_id),
 806
 807   -- rev_id of the prior revision, for generating diff links.
 808   rc_last_oldid int REFERENCES /*_*/revision(rev_id),
 809
 810   -- The type of change entry (RC_EDIT,RC_NEW,RC_LOG,RC_EXTERNAL)
 811   rc_type tinyint NOT NULL default 0,
 812
 813   -- The source of the change entry (replaces rc_type)
 814   -- default of '' is temporary, needed for initial migration
 815   rc_source nvarchar(16) not null default '',
 816
 817   -- If the Recent Changes Patrol option is enabled,
 818   -- users may mark edits as having been reviewed to
 819   -- remove a warning flag on the RC list.
 820   -- A value of 1 indicates the page has been reviewed.
 821   rc_patrolled bit NOT NULL default 0,
 822
 823   -- Recorded IP address the edit was made from, if the
 824   -- $wgPutIPinRC option is enabled.
 825   rc_ip nvarchar(40) NOT NULL default '',
 826
 827   -- Text length in characters before
 828   -- and after the edit
 829   rc_old_len int,
 830   rc_new_len int,
 831
 832   -- Visibility of recent changes items, bitfield
 833   rc_deleted tinyint NOT NULL default 0,
 834
 835   -- Value corresponding to log_id, specific log entries
 836   rc_logid int, -- FK added later
 837   -- Store log type info here, or null
 838   rc_log_type nvarchar(255) NULL default NULL,
 839   -- Store log action or null
 840   rc_log_action nvarchar(255) NULL default NULL,
 841   -- Log params
 842   rc_params nvarchar(max) NULL
 843 );
 844
 845 CREATE INDEX /*i*/rc_timestamp ON /*_*/recentchanges (rc_timestamp);
 846 CREATE INDEX /*i*/rc_namespace_title ON /*_*/recentchanges (rc_namespace, rc_title);
 847 CREATE INDEX /*i*/rc_cur_id ON /*_*/recentchanges (rc_cur_id);
 848 CREATE INDEX /*i*/new_name_timestamp ON /*_*/recentchanges (rc_new,rc_namespace,rc_timestamp);
 849 CREATE INDEX /*i*/rc_ip ON /*_*/recentchanges (rc_ip);
 850 CREATE INDEX /*i*/rc_ns_usertext ON /*_*/recentchanges (rc_namespace, rc_user_text);
 851 CREATE INDEX /*i*/rc_user_text ON /*_*/recentchanges (rc_user_text, rc_timestamp);
 852
 853
 854 CREATE TABLE /*_*/watchlist (
 855   -- Key to user.user_id
 856   wl_user int NOT NULL REFERENCES /*_*/mwuser(user_id) ON DELETE CASCADE,
 857
 858   -- Key to page_namespace/page_title
 859   -- Note that users may watch pages which do not exist yet,
 860   -- or existed in the past but have been deleted.
 861   wl_namespace int NOT NULL default 0,
 862   wl_title nvarchar(255) NOT NULL default '',
 863
 864   -- Timestamp used to send notification e-mails and show "updated since last visit" markers on
 865   -- history and recent changes / watchlist. Set to NULL when the user visits the latest revision
 866   -- of the page, which means that they should be sent an e-mail on the next change.
 867   wl_notificationtimestamp varchar(14)
 868
 869 );
 870
 871 CREATE UNIQUE INDEX /*i*/wl_user ON /*_*/watchlist (wl_user, wl_namespace, wl_title);
 872 CREATE INDEX /*i*/namespace_title ON /*_*/watchlist (wl_namespace, wl_title);
 873
 874
 875 --
 876 -- Our search index for the builtin MediaWiki search
 877 --
 878 CREATE TABLE /*_*/searchindex (
 879   -- Key to page_id
 880   si_page int NOT NULL REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
 881
 882   -- Munged version of title
 883   si_title nvarchar(255) NOT NULL default '',
 884
 885   -- Munged version of body text
 886   si_text nvarchar(max) NOT NULL
 887 );
 888
 889 CREATE UNIQUE INDEX /*i*/si_page ON /*_*/searchindex (si_page);
 890 -- Fulltext index is defined in MssqlInstaller.php
 891
 892 --
 893 -- Recognized interwiki link prefixes
 894 --
 895 CREATE TABLE /*_*/interwiki (
 896   -- The interwiki prefix, (e.g. "Meatball", or the language prefix "de")
 897   iw_prefix nvarchar(32) NOT NULL,
 898
 899   -- The URL of the wiki, with "$1" as a placeholder for an article name.
 900   -- Any spaces in the name will be transformed to underscores before
 901   -- insertion.
 902   iw_url nvarchar(max) NOT NULL,
 903
 904   -- The URL of the file api.php
 905   iw_api nvarchar(max) NOT NULL,
 906
 907   -- The name of the database (for a connection to be established with wfGetLB( 'wikiid' ))
 908   iw_wikiid nvarchar(64) NOT NULL,
 909
 910   -- A boolean value indicating whether the wiki is in this project
 911   -- (used, for example, to detect redirect loops)
 912   iw_local bit NOT NULL,
 913
 914   -- Boolean value indicating whether interwiki transclusions are allowed.
 915   iw_trans bit NOT NULL default 0
 916 );
 917
 918 CREATE UNIQUE INDEX /*i*/iw_prefix ON /*_*/interwiki (iw_prefix);
 919
 920
 921 --
 922 -- Used for caching expensive grouped queries
 923 --
 924 CREATE TABLE /*_*/querycache (
 925   -- A key name, generally the base name of of the special page.
 926   qc_type nvarchar(32) NOT NULL,
 927
 928   -- Some sort of stored value. Sizes, counts...
 929   qc_value int NOT NULL default 0,
 930
 931   -- Target namespace+title
 932   qc_namespace int NOT NULL default 0,
 933   qc_title nvarchar(255) NOT NULL default ''
 934 );
 935
 936 CREATE INDEX /*i*/qc_type ON /*_*/querycache (qc_type,qc_value);
 937
 938
 939 --
 940 -- For a few generic cache operations if not using Memcached
 941 --
 942 CREATE TABLE /*_*/objectcache (
 943   keyname nvarchar(255) NOT NULL default '' PRIMARY KEY,
 944   value varbinary(max),
 945   exptime varchar(14)
 946 );
 947 CREATE INDEX /*i*/exptime ON /*_*/objectcache (exptime);
 948
 949
 950 --
 951 -- Cache of interwiki transclusion
 952 --
 953 CREATE TABLE /*_*/transcache (
 954   tc_url nvarchar(255) NOT NULL,
 955   tc_contents nvarchar(max),
 956   tc_time varchar(14) NOT NULL
 957 );
 958
 959 CREATE UNIQUE INDEX /*i*/tc_url_idx ON /*_*/transcache (tc_url);
 960
 961
 962 CREATE TABLE /*_*/logging (
 963   -- Log ID, for referring to this specific log entry, probably for deletion and such.
 964   log_id int NOT NULL PRIMARY KEY IDENTITY(0,1),
 965
 966   -- Symbolic keys for the general log type and the action type
 967   -- within the log. The output format will be controlled by the
 968   -- action field, but only the type controls categorization.
 969   log_type nvarchar(32) NOT NULL default '',
 970   log_action nvarchar(32) NOT NULL default '',
 971
 972   -- Timestamp. Duh.
 973   log_timestamp varchar(14) NOT NULL default '',
 974
 975   -- The user who performed this action; key to user_id
 976   log_user int REFERENCES /*_*/mwuser(user_id) ON DELETE SET NULL,
 977
 978   -- Name of the user who performed this action
 979   log_user_text nvarchar(255) NOT NULL default '',
 980
 981   -- Key to the page affected. Where a user is the target,
 982   -- this will point to the user page.
 983   log_namespace int NOT NULL default 0,
 984   log_title nvarchar(255) NOT NULL default '',
 985   log_page int NULL REFERENCES /*_*/page(page_id) ON DELETE SET NULL,
 986
 987   -- Freeform text. Interpreted as edit history comments.
 988   log_comment nvarchar(255) NOT NULL default '',
 989
 990   -- miscellaneous parameters:
 991   -- LF separated list (old system) or serialized PHP array (new system)
 992   log_params nvarchar(max) NOT NULL,
 993
 994   -- rev_deleted for logs
 995   log_deleted tinyint NOT NULL default 0
 996 );
 997
 998 CREATE INDEX /*i*/type_time ON /*_*/logging (log_type, log_timestamp);
 999 CREATE INDEX /*i*/user_time ON /*_*/logging (log_user, log_timestamp);
1000 CREATE INDEX /*i*/page_time ON /*_*/logging (log_namespace, log_title, log_timestamp);
1001 CREATE INDEX /*i*/times ON /*_*/logging (log_timestamp);
1002 CREATE INDEX /*i*/log_user_type_time ON /*_*/logging (log_user, log_type, log_timestamp);
1003 CREATE INDEX /*i*/log_page_id_time ON /*_*/logging (log_page,log_timestamp);
1004 CREATE INDEX /*i*/type_action ON /*_*/logging (log_type, log_action, log_timestamp);
1005 CREATE INDEX /*i*/log_user_text_type_time ON /*_*/logging (log_user_text, log_type, log_timestamp);
1006 CREATE INDEX /*i*/log_user_text_time ON /*_*/logging (log_user_text, log_timestamp);
1007
1008 INSERT INTO /*_*/logging (log_user,log_page,log_params) VALUES(0,0,'');
1009
1010 ALTER TABLE /*_*/recentchanges ADD CONSTRAINT FK_rc_logid_log_id FOREIGN KEY (rc_logid) REFERENCES /*_*/logging(log_id) ON DELETE CASCADE;
1011
1012 CREATE TABLE /*_*/log_search (
1013   -- The type of ID (rev ID, log ID, rev timestamp, username)
1014   ls_field nvarchar(32) NOT NULL,
1015   -- The value of the ID
1016   ls_value nvarchar(255) NOT NULL,
1017   -- Key to log_id
1018   ls_log_id int REFERENCES /*_*/logging(log_id) ON DELETE CASCADE
1019 );
1020 CREATE UNIQUE INDEX /*i*/ls_field_val ON /*_*/log_search (ls_field,ls_value,ls_log_id);
1021 CREATE INDEX /*i*/ls_log_id ON /*_*/log_search (ls_log_id);
1022
1023
1024 -- Jobs performed by parallel apache threads or a command-line daemon
1025 CREATE TABLE /*_*/job (
1026   job_id int NOT NULL PRIMARY KEY IDENTITY,
1027
1028   -- Command name
1029   -- Limited to 60 to prevent key length overflow
1030   job_cmd nvarchar(60) NOT NULL default '',
1031
1032   -- Namespace and title to act on
1033   -- Should be 0 and '' if the command does not operate on a title
1034   job_namespace int NOT NULL,
1035   job_title nvarchar(255) NOT NULL,
1036
1037   -- Timestamp of when the job was inserted
1038   -- NULL for jobs added before addition of the timestamp
1039   job_timestamp nvarchar(14) NULL default NULL,
1040
1041   -- Any other parameters to the command
1042   -- Stored as a PHP serialized array, or an empty string if there are no parameters
1043   job_params nvarchar(max) NOT NULL,
1044
1045   -- Random, non-unique, number used for job acquisition (for lock concurrency)
1046   job_random int NOT NULL default 0,
1047
1048   -- The number of times this job has been locked
1049   job_attempts int NOT NULL default 0,
1050
1051   -- Field that conveys process locks on rows via process UUIDs
1052   job_token nvarchar(32) NOT NULL default '',
1053
1054   -- Timestamp when the job was locked
1055   job_token_timestamp varchar(14) NULL default NULL,
1056
1057   -- Base 36 SHA1 of the job parameters relevant to detecting duplicates
1058   job_sha1 nvarchar(32) NOT NULL default ''
1059 );
1060
1061 CREATE INDEX /*i*/job_sha1 ON /*_*/job (job_sha1);
1062 CREATE INDEX /*i*/job_cmd_token ON /*_*/job (job_cmd,job_token,job_random);
1063 CREATE INDEX /*i*/job_cmd_token_id ON /*_*/job (job_cmd,job_token,job_id);
1064 CREATE INDEX /*i*/job_cmd ON /*_*/job (job_cmd, job_namespace, job_title);
1065 CREATE INDEX /*i*/job_timestamp ON /*_*/job (job_timestamp);
1066
1067
1068 -- Details of updates to cached special pages
1069 CREATE TABLE /*_*/querycache_info (
1070   -- Special page name
1071   -- Corresponds to a qc_type value
1072   qci_type nvarchar(32) NOT NULL default '',
1073
1074   -- Timestamp of last update
1075   qci_timestamp varchar(14) NOT NULL default ''
1076 );
1077
1078 CREATE UNIQUE INDEX /*i*/qci_type ON /*_*/querycache_info (qci_type);
1079
1080
1081 -- For each redirect, this table contains exactly one row defining its target
1082 CREATE TABLE /*_*/redirect (
1083   -- Key to the page_id of the redirect page
1084   rd_from int NOT NULL REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
1085
1086   -- Key to page_namespace/page_title of the target page.
1087   -- The target page may or may not exist, and due to renames
1088   -- and deletions may refer to different page records as time
1089   -- goes by.
1090   rd_namespace int NOT NULL default 0,
1091   rd_title nvarchar(255) NOT NULL default '',
1092   rd_interwiki nvarchar(32) default NULL,
1093   rd_fragment nvarchar(255) default NULL
1094 );
1095
1096 CREATE INDEX /*i*/rd_ns_title ON /*_*/redirect (rd_namespace,rd_title,rd_from);
1097
1098
1099 -- Used for caching expensive grouped queries that need two links (for example double-redirects)
1100 CREATE TABLE /*_*/querycachetwo (
1101   -- A key name, generally the base name of of the special page.
1102   qcc_type nvarchar(32) NOT NULL,
1103
1104   -- Some sort of stored value. Sizes, counts...
1105   qcc_value int NOT NULL default 0,
1106
1107   -- Target namespace+title
1108   qcc_namespace int NOT NULL default 0,
1109   qcc_title nvarchar(255) NOT NULL default '',
1110
1111   -- Target namespace+title2
1112   qcc_namespacetwo int NOT NULL default 0,
1113   qcc_titletwo nvarchar(255) NOT NULL default ''
1114 );
1115
1116 CREATE INDEX /*i*/qcc_type ON /*_*/querycachetwo (qcc_type,qcc_value);
1117 CREATE INDEX /*i*/qcc_title ON /*_*/querycachetwo (qcc_type,qcc_namespace,qcc_title);
1118 CREATE INDEX /*i*/qcc_titletwo ON /*_*/querycachetwo (qcc_type,qcc_namespacetwo,qcc_titletwo);
1119
1120
1121 -- Used for storing page restrictions (i.e. protection levels)
1122 CREATE TABLE /*_*/page_restrictions (
1123   -- Field for an ID for this restrictions row (sort-key for Special:ProtectedPages)
1124   pr_id int NOT NULL PRIMARY KEY IDENTITY,
1125   -- Page to apply restrictions to (Foreign Key to page).
1126   pr_page int NOT NULL REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
1127   -- The protection type (edit, move, etc)
1128   pr_type nvarchar(60) NOT NULL,
1129   -- The protection level (Sysop, autoconfirmed, etc)
1130   pr_level nvarchar(60) NOT NULL,
1131   -- Whether or not to cascade the protection down to pages transcluded.
1132   pr_cascade bit NOT NULL,
1133   -- Field for future support of per-user restriction.
1134   pr_user int NULL,
1135   -- Field for time-limited protection.
1136   pr_expiry varchar(14) NULL
1137 );
1138
1139 CREATE UNIQUE INDEX /*i*/pr_pagetype ON /*_*/page_restrictions (pr_page,pr_type);
1140 CREATE INDEX /*i*/pr_typelevel ON /*_*/page_restrictions (pr_type,pr_level);
1141 CREATE INDEX /*i*/pr_level ON /*_*/page_restrictions (pr_level);
1142 CREATE INDEX /*i*/pr_cascade ON /*_*/page_restrictions (pr_cascade);
1143
1144
1145 -- Protected titles - nonexistent pages that have been protected
1146 CREATE TABLE /*_*/protected_titles (
1147   pt_namespace int NOT NULL,
1148   pt_title nvarchar(255) NOT NULL,
1149   pt_user int REFERENCES /*_*/mwuser(user_id) ON DELETE SET NULL,
1150   pt_reason nvarchar(255),
1151   pt_timestamp varchar(14) NOT NULL,
1152   pt_expiry varchar(14) NOT NULL,
1153   pt_create_perm nvarchar(60) NOT NULL
1154 );
1155
1156 CREATE UNIQUE INDEX /*i*/pt_namespace_title ON /*_*/protected_titles (pt_namespace,pt_title);
1157 CREATE INDEX /*i*/pt_timestamp ON /*_*/protected_titles (pt_timestamp);
1158
1159
1160 -- Name/value pairs indexed by page_id
1161 CREATE TABLE /*_*/page_props (
1162   pp_page int NOT NULL REFERENCES /*_*/page(page_id) ON DELETE CASCADE,
1163   pp_propname nvarchar(60) NOT NULL,
1164   pp_value nvarchar(max) NOT NULL
1165 );
1166
1167 CREATE UNIQUE INDEX /*i*/pp_page_propname ON /*_*/page_props (pp_page,pp_propname);
1168 CREATE UNIQUE INDEX /*i*/pp_propname_page ON /*_*/page_props (pp_propname,pp_page);
1169
1170
1171 -- A table to log updates, one text key row per update.
1172 CREATE TABLE /*_*/updatelog (
1173   ul_key nvarchar(255) NOT NULL PRIMARY KEY,
1174   ul_value nvarchar(max)
1175 );
1176
1177
1178 -- A table to track tags for revisions, logs and recent changes.
1179 CREATE TABLE /*_*/change_tag (
1180   -- RCID for the change
1181   ct_rc_id int NULL REFERENCES /*_*/recentchanges(rc_id),
1182   -- LOGID for the change
1183   ct_log_id int NULL REFERENCES /*_*/logging(log_id),
1184   -- REVID for the change
1185   ct_rev_id int NULL REFERENCES /*_*/revision(rev_id),
1186   -- Tag applied
1187   ct_tag nvarchar(255) NOT NULL,
1188   -- Parameters for the tag, presently unused
1189   ct_params nvarchar(max) NULL
1190 );
1191
1192 CREATE UNIQUE INDEX /*i*/change_tag_rc_tag ON /*_*/change_tag (ct_rc_id,ct_tag);
1193 CREATE UNIQUE INDEX /*i*/change_tag_log_tag ON /*_*/change_tag (ct_log_id,ct_tag);
1194 CREATE UNIQUE INDEX /*i*/change_tag_rev_tag ON /*_*/change_tag (ct_rev_id,ct_tag);
1195 -- Covering index, so we can pull all the info only out of the index.
1196 CREATE INDEX /*i*/change_tag_tag_id ON /*_*/change_tag (ct_tag,ct_rc_id,ct_rev_id,ct_log_id);
1197
1198
1199 -- Rollup table to pull a LIST of tags simply without ugly GROUP_CONCAT
1200 -- that only works on MySQL 4.1+
1201 CREATE TABLE /*_*/tag_summary (
1202   -- RCID for the change
1203   ts_rc_id int NULL REFERENCES /*_*/recentchanges(rc_id),
1204   -- LOGID for the change
1205   ts_log_id int NULL REFERENCES /*_*/logging(log_id),
1206   -- REVID for the change
1207   ts_rev_id int NULL REFERENCES /*_*/revision(rev_id),
1208   -- Comma-separated list of tags
1209   ts_tags nvarchar(max) NOT NULL
1210 );
1211
1212 CREATE UNIQUE INDEX /*i*/tag_summary_rc_id ON /*_*/tag_summary (ts_rc_id);
1213 CREATE UNIQUE INDEX /*i*/tag_summary_log_id ON /*_*/tag_summary (ts_log_id);
1214 CREATE UNIQUE INDEX /*i*/tag_summary_rev_id ON /*_*/tag_summary (ts_rev_id);
1215
1216
1217 CREATE TABLE /*_*/valid_tag (
1218   vt_tag nvarchar(255) NOT NULL PRIMARY KEY
1219 );
1220
1221 -- Table for storing localisation data
1222 CREATE TABLE /*_*/l10n_cache (
1223   -- Language code
1224   lc_lang nvarchar(32) NOT NULL,
1225   -- Cache key
1226   lc_key nvarchar(255) NOT NULL,
1227   -- Value
1228   lc_value varbinary(max) NOT NULL
1229 );
1230 CREATE INDEX /*i*/lc_lang_key ON /*_*/l10n_cache (lc_lang, lc_key);
1231
1232 -- Table for caching JSON message texts for the resource loader
1233 CREATE TABLE /*_*/msg_resource (
1234   -- Resource name
1235   mr_resource nvarchar(255) NOT NULL,
1236   -- Language code
1237   mr_lang nvarchar(32) NOT NULL,
1238   -- JSON blob
1239   mr_blob varbinary(max) NOT NULL,
1240   -- Timestamp of last update
1241   mr_timestamp varchar(14) NOT NULL
1242 );
1243 CREATE UNIQUE INDEX /*i*/mr_resource_lang ON /*_*/msg_resource (mr_resource, mr_lang);
1244
1245 -- Table for administering which message is contained in which resource
1246 CREATE TABLE /*_*/msg_resource_links (
1247   mrl_resource varbinary(255) NOT NULL,
1248   -- Message key
1249   mrl_message varbinary(255) NOT NULL
1250 );
1251 CREATE UNIQUE INDEX /*i*/mrl_message_resource ON /*_*/msg_resource_links (mrl_message, mrl_resource);
1252
1253 -- Table caching which local files a module depends on that aren't
1254 -- registered directly, used for fast retrieval of file dependency.
1255 -- Currently only used for tracking images that CSS depends on
1256 CREATE TABLE /*_*/module_deps (
1257   -- Module name
1258   md_module nvarchar(255) NOT NULL,
1259   -- Skin name
1260   md_skin nvarchar(32) NOT NULL,
1261   -- JSON nvarchar(max) with file dependencies
1262   md_deps nvarchar(max) NOT NULL
1263 );
1264 CREATE UNIQUE INDEX /*i*/md_module_skin ON /*_*/module_deps (md_module, md_skin);
1265
1266 -- Holds all the sites known to the wiki.
1267 CREATE TABLE /*_*/sites (
1268   -- Numeric id of the site
1269   site_id                    int        NOT NULL PRIMARY KEY IDENTITY,
1270
1271   -- Global identifier for the site, ie 'enwiktionary'
1272   site_global_key            nvarchar(32)       NOT NULL,
1273
1274   -- Type of the site, ie 'mediawiki'
1275   site_type                  nvarchar(32)       NOT NULL,
1276
1277   -- Group of the site, ie 'wikipedia'
1278   site_group                 nvarchar(32)       NOT NULL,
1279
1280   -- Source of the site data, ie 'local', 'wikidata', 'my-magical-repo'
1281   site_source                nvarchar(32)       NOT NULL,
1282
1283   -- Language code of the sites primary language.
1284   site_language              nvarchar(32)       NOT NULL,
1285
1286   -- Protocol of the site, ie 'http://', 'irc://', '//'
1287   -- This field is an index for lookups and is build from type specific data in site_data.
1288   site_protocol              nvarchar(32)       NOT NULL,
1289
1290   -- Domain of the site in reverse order, ie 'org.mediawiki.www.'
1291   -- This field is an index for lookups and is build from type specific data in site_data.
1292   site_domain                NVARCHAR(255)        NOT NULL,
1293
1294   -- Type dependent site data.
1295   site_data                  nvarchar(max)                NOT NULL,
1296
1297   -- If site.tld/path/key:pageTitle should forward users to  the page on
1298   -- the actual site, where "key" is the local identifier.
1299   site_forward              bit                NOT NULL,
1300
1301   -- Type dependent site config.
1302   -- For instance if template transclusion should be allowed if it's a MediaWiki.
1303   site_config               nvarchar(max)                NOT NULL
1304 );
1305
1306 CREATE UNIQUE INDEX /*i*/sites_global_key ON /*_*/sites (site_global_key);
1307 CREATE INDEX /*i*/sites_type ON /*_*/sites (site_type);
1308 CREATE INDEX /*i*/sites_group ON /*_*/sites (site_group);
1309 CREATE INDEX /*i*/sites_source ON /*_*/sites (site_source);
1310 CREATE INDEX /*i*/sites_language ON /*_*/sites (site_language);
1311 CREATE INDEX /*i*/sites_protocol ON /*_*/sites (site_protocol);
1312 CREATE INDEX /*i*/sites_domain ON /*_*/sites (site_domain);
1313 CREATE INDEX /*i*/sites_forward ON /*_*/sites (site_forward);
1314
1315 -- Links local site identifiers to their corresponding site.
1316 CREATE TABLE /*_*/site_identifiers (
1317   -- Key on site.site_id
1318   si_site                    int        NOT NULL REFERENCES /*_*/sites(site_id) ON DELETE CASCADE,
1319
1320   -- local key type, ie 'interwiki' or 'langlink'
1321   si_type                    nvarchar(32)       NOT NULL,
1322
1323   -- local key value, ie 'en' or 'wiktionary'
1324   si_key                     nvarchar(32)       NOT NULL
1325 );
1326
1327 CREATE UNIQUE INDEX /*i*/site_ids_type ON /*_*/site_identifiers (si_type, si_key);
1328 CREATE INDEX /*i*/site_ids_site ON /*_*/site_identifiers (si_site);
1329 CREATE INDEX /*i*/site_ids_key ON /*_*/site_identifiers (si_key);