maintenance/updaters.inc

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup Maintenance
   5  */
   6
   7 if ( !defined( 'MEDIAWIKI' ) ) {
   8         echo "This file is not a valid entry point\n";
   9         exit( 1 );
  10 }
  11
  12 require_once 'convertLinks.inc';
  13 require_once 'userDupes.inc';
  14 # Extension updates
  15 require_once( "$IP/includes/Hooks.php" );
  16
  17 /**
  18  * @deprecated. Do not use, ever.
  19  */
  20 $wgUpdates = array();
  21
  22
  23 # For extensions only, should be populated via hooks
  24 # $wgDBtype should be checked to specifiy the proper file
  25 $wgExtNewTables = array(); // table, dir
  26 $wgExtNewFields = array(); // table, column, dir
  27 $wgExtPGNewFields = array(); // table, column, column attributes; for PostgreSQL
  28 $wgExtPGAlteredFields = array(); // table, column, new type, conversion method; for PostgreSQL
  29 $wgExtNewIndexes = array(); // table, index, dir
  30 $wgExtModifiedFields = array(); // table, index, dir
  31
  32 # Helper function: check if the given key is present in the updatelog table.
  33 # Obviously, only use this for updates that occur after the updatelog table was
  34 # created!
  35 function update_row_exists( $key ) {
  36         $dbr = wfGetDB( DB_SLAVE );
  37         $row = $dbr->selectRow(
  38                 'updatelog',
  39                 '1',
  40                 array( 'ul_key' => $key ),
  41                 __FUNCTION__
  42         );
  43         return (bool)$row;
  44 }
  45
  46 function rename_table( $from, $to, $patch ) {
  47         global $wgDatabase;
  48         if ( $wgDatabase->tableExists( $from ) ) {
  49                 if ( $wgDatabase->tableExists( $to ) ) {
  50                         wfOut( "...can't move table $from to $to, $to already exists.\n" );
  51                 } else {
  52                         wfOut( "Moving table $from to $to..." );
  53                         $wgDatabase->sourceFile( archive( $patch ) );
  54                         wfOut( "ok\n" );
  55                 }
  56         } else {
  57                 // Source table does not exist
  58                 // Renames are done before creations, so this is typical for a new installation
  59                 // Ignore silently
  60         }
  61 }
  62
  63 function add_table( $name, $patch, $fullpath = false ) {
  64         global $wgDatabase;
  65         if ( $wgDatabase->tableExists( $name ) ) {
  66                 wfOut( "...$name table already exists.\n" );
  67         } else {
  68                 wfOut( "Creating $name table..." );
  69                 if ( $fullpath ) {
  70                         $wgDatabase->sourceFile( $patch );
  71                 } else {
  72                         $wgDatabase->sourceFile( archive( $patch ) );
  73                 }
  74                 wfOut( "ok\n" );
  75         }
  76 }
  77
  78 function modify_field( $table, $field, $patch, $fullpath = false ) {
  79         global $wgDatabase;
  80         if ( !$wgDatabase->tableExists( $table ) ) {
  81                 wfOut( "...$table table does not exist, skipping modify field patch\n" );
  82         } elseif ( ! $wgDatabase->fieldExists( $table, $field ) ) {
  83                 wfOut( "...$field field does not exist in $table table, skipping modify field patch\n" );
  84         } else {
  85                 wfOut( "Modifying $field field of table $table..." );
  86                 if ( $fullpath ) {
  87                         $wgDatabase->sourceFile( $patch );
  88                 } else {
  89                         $wgDatabase->sourceFile( archive( $patch ) );
  90                 }
  91                 wfOut( "ok\n" );
  92         }
  93 }
  94
  95 function add_field( $table, $field, $patch, $fullpath = false ) {
  96         global $wgDatabase;
  97         if ( !$wgDatabase->tableExists( $table ) ) {
  98                 wfOut( "...$table table does not exist, skipping new field patch\n" );
  99         } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
 100                 wfOut( "...have $field field in $table table.\n" );
 101         } else {
 102                 wfOut( "Adding $field field to table $table..." );
 103                 if ( $fullpath ) {
 104                         $wgDatabase->sourceFile( $patch );
 105                 } else {
 106                         $wgDatabase->sourceFile( archive( $patch ) );
 107                 }
 108                 wfOut( "ok\n" );
 109         }
 110 }
 111
 112 function add_index( $table, $index, $patch, $fullpath = false ) {
 113         global $wgDatabase;
 114         if ( $wgDatabase->indexExists( $table, $index ) ) {
 115                 wfOut( "...$index key already set on $table table.\n" );
 116         } else {
 117                 wfOut( "Adding $index key to table $table... " );
 118                 if ( $fullpath ) {
 119                         $wgDatabase->sourceFile( $patch );
 120                 } else {
 121                         $wgDatabase->sourceFile( archive( $patch ) );
 122                 }
 123                 wfOut( "ok\n" );
 124         }
 125 }
 126
 127 function drop_index_if_exists( $table, $index, $patch, $fullpath = false ) {
 128         global $wgDatabase;
 129         if ( $wgDatabase->indexExists( $table, $index ) ) {
 130                 wfOut( "Dropping $index from table $table... " );
 131                 if ( $fullpath ) {
 132                         $wgDatabase->sourceFile( $patch );
 133                 } else {
 134                         $wgDatabase->sourceFile( archive( $patch ) );
 135                 }
 136                 wfOut( "ok\n" );
 137         } else {
 138                 wfOut( "...$index doesn't exist.\n" );
 139         }
 140 }
 141
 142 function do_interwiki_update() {
 143         # Check that interwiki table exists; if it doesn't source it
 144         global $wgDatabase, $IP;
 145         if ( $wgDatabase->tableExists( "interwiki" ) ) {
 146                 wfOut( "...already have interwiki table\n" );
 147                 return true;
 148         }
 149         wfOut( "Creating interwiki table: " );
 150         $wgDatabase->sourceFile( archive( "patch-interwiki.sql" ) );
 151         wfOut( "ok\n" );
 152         wfOut( "Adding default interwiki definitions: " );
 153         $wgDatabase->sourceFile( "$IP/maintenance/interwiki.sql" );
 154         wfOut( "ok\n" );
 155 }
 156
 157 function do_index_update() {
 158         # Check that proper indexes are in place
 159         global $wgDatabase;
 160         $meta = $wgDatabase->fieldInfo( "recentchanges", "rc_timestamp" );
 161         if ( !$meta->isMultipleKey() ) {
 162                 wfOut( "Updating indexes to 20031107: " );
 163                 $wgDatabase->sourceFile( archive( "patch-indexes.sql" ) );
 164                 wfOut( "ok\n" );
 165                 return true;
 166         }
 167         wfOut( "...indexes seem up to 20031107 standards\n" );
 168         return false;
 169 }
 170
 171 function do_image_index_update() {
 172         global $wgDatabase;
 173
 174         $meta = $wgDatabase->fieldInfo( "image", "img_major_mime" );
 175         if ( !$meta->isMultipleKey() ) {
 176                 wfOut( "Updating indexes to 20050912: " );
 177                 $wgDatabase->sourceFile( archive( "patch-mimesearch-indexes.sql" ) );
 178                 wfOut( "ok\n" );
 179                 return true;
 180         }
 181         wfOut( "...indexes seem up to 20050912 standards\n" );
 182         return false;
 183 }
 184
 185 function do_image_name_unique_update() {
 186         global $wgDatabase;
 187         if ( $wgDatabase->indexExists( 'image', 'PRIMARY' ) ) {
 188                 wfOut( "...image primary key already set.\n" );
 189         } else {
 190                 wfOut( "Making img_name the primary key... " );
 191                 $wgDatabase->sourceFile( archive( "patch-image_name_primary.sql" ) );
 192                 wfOut( "ok\n" );
 193         }
 194 }
 195
 196 function do_logging_timestamp_index() {
 197         global $wgDatabase;
 198         if ( $wgDatabase->indexExists( 'logging', 'times' ) ) {
 199                 wfOut( "...timestamp key on logging already exists.\n" );
 200         } else {
 201                 wfOut( "Adding timestamp key on logging table... " );
 202                 $wgDatabase->sourceFile( archive( "patch-logging-times-index.sql" ) );
 203                 wfOut( "ok\n" );
 204         }
 205 }
 206
 207 function do_archive_user_index() {
 208         global $wgDatabase;
 209         if ( $wgDatabase->indexExists( 'archive', 'usertext_timestamp' ) ) {
 210                 wfOut( "...usertext,timestamp key on archive already exists.\n" );
 211         } else {
 212                 wfOut( "Adding usertext,timestamp key on archive table... " );
 213                 $wgDatabase->sourceFile( archive( "patch-archive-user-index.sql" ) );
 214                 wfOut( "ok\n" );
 215         }
 216 }
 217
 218 function do_image_user_index() {
 219         global $wgDatabase;
 220         if ( $wgDatabase->indexExists( 'image', 'img_usertext_timestamp' ) ) {
 221                 wfOut( "...usertext,timestamp key on image already exists.\n" );
 222         } else {
 223                 wfOut( "Adding usertext,timestamp key on image table... " );
 224                 $wgDatabase->sourceFile( archive( "patch-image-user-index.sql" ) );
 225                 wfOut( "ok\n" );
 226         }
 227 }
 228
 229 function do_oldimage_user_index() {
 230         global $wgDatabase;
 231         if ( $wgDatabase->indexExists( 'oldimage', 'oi_usertext_timestamp' ) ) {
 232                 wfOut( "...usertext,timestamp key on oldimage already exists.\n" );
 233         } else {
 234                 wfOut( "Adding usertext,timestamp key on oldimage table... " );
 235                 $wgDatabase->sourceFile( archive( "patch-oldimage-user-index.sql" ) );
 236                 wfOut( "ok\n" );
 237         }
 238 }
 239
 240 function do_watchlist_update() {
 241         global $wgDatabase;
 242         $fname = 'do_watchlist_update';
 243         if ( $wgDatabase->fieldExists( 'watchlist', 'wl_notificationtimestamp' ) ) {
 244                 wfOut( "...the watchlist table is already set up for email notification.\n" );
 245         } else {
 246                 wfOut( "Adding wl_notificationtimestamp field for email notification management." );
 247                 /* ALTER TABLE watchlist ADD (wl_notificationtimestamp varchar(14) binary NOT NULL default '0'); */
 248                 $wgDatabase->sourceFile( archive( 'patch-email-notification.sql' ) );
 249                 wfOut( "ok\n" );
 250         }
 251         # Check if we need to add talk page rows to the watchlist
 252         $talk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', $fname );
 253         $nontalk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', $fname );
 254         if ( $talk != $nontalk ) {
 255                 wfOut( "Adding missing watchlist talk page rows... " );
 256                 flush();
 257
 258                 $wgDatabase->insertSelect( 'watchlist', 'watchlist',
 259                         array(
 260                                 'wl_user' => 'wl_user',
 261                                 'wl_namespace' => 'wl_namespace | 1',
 262                                 'wl_title' => 'wl_title',
 263                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 264                         ), array( 'NOT (wl_namespace & 1)' ), $fname, 'IGNORE' );
 265                 wfOut( "ok\n" );
 266         } else {
 267                 wfOut( "...watchlist talk page rows already present\n" );
 268         }
 269 }
 270
 271 function do_copy_newtalk_to_watchlist() {
 272         global $wgDatabase;
 273
 274         $res = $wgDatabase->safeQuery( 'SELECT user_id, user_ip FROM !',
 275                 $wgDatabase->tableName( 'user_newtalk' ) );
 276         $num_newtalks = $wgDatabase->numRows( $res );
 277         wfOut( "Now converting $num_newtalks user_newtalk entries to watchlist table entries ... \n" );
 278
 279         $user = new User();
 280         for ( $i = 1; $i <= $num_newtalks; $i++ ) {
 281                 $wluser = $wgDatabase->fetchObject( $res );
 282                 if ( $wluser->user_id == 0 ) { # anonymous users ... have IP numbers as "names"
 283                         if ( $user->isIP( $wluser->user_ip ) ) { # do only if it really looks like an IP number (double checked)
 284                                 $wgDatabase->replace( 'watchlist',
 285                                         array( array( 'wl_user', 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ) ),
 286                                         array( 'wl_user' => 0,
 287                                                 'wl_namespace' => NS_USER_TALK,
 288                                                 'wl_title' => $wluser->user_ip,
 289                                                 'wl_notificationtimestamp' => '19700101000000'
 290                                                 ), 'updaters.inc::do_watchlist_update2'
 291                                         );
 292                         }
 293                 } else { # normal users ... have user_ids
 294                         $user->setID( $wluser->user_id );
 295                         $wgDatabase->replace( 'watchlist',
 296                                 array( array( 'wl_user', 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ) ),
 297                                 array( 'wl_user' => $user->getID(),
 298                                         'wl_namespace' => NS_USER_TALK,
 299                                         'wl_title' => $user->getName(),
 300                                         'wl_notificationtimestamp' => '19700101000000'
 301                                         ), 'updaters.inc::do_watchlist_update3'
 302                                 );
 303                 }
 304         }
 305         wfOut( "Done.\n" );
 306 }
 307
 308 function do_user_update() {
 309         global $wgDatabase;
 310         if ( $wgDatabase->fieldExists( 'user', 'user_emailauthenticationtimestamp' ) ) {
 311                 wfOut( "User table contains old email authentication field. Dropping... " );
 312                 $wgDatabase->sourceFile( archive( 'patch-email-authentication.sql' ) );
 313                 wfOut( "ok\n" );
 314         } else {
 315                 wfOut( "...user table does not contain old email authentication field.\n" );
 316         }
 317 }
 318
 319 /**
 320  * 1.4 betas were missing the 'binary' marker from logging.log_title,
 321  * which causes a collation mismatch error on joins in MySQL 4.1.
 322  */
 323 function check_bin( $table, $field, $patchFile ) {
 324         global $wgDatabase, $wgDBtype;
 325         if ( $wgDBtype != 'mysql' )
 326                 return;
 327         $tableName = $wgDatabase->tableName( $table );
 328         $res = $wgDatabase->query( "SELECT $field FROM $tableName LIMIT 0" );
 329         $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 330
 331         if ( in_array( 'binary', $flags ) ) {
 332                 wfOut( "...$table table has correct $field encoding.\n" );
 333         } else {
 334                 wfOut( "Fixing $field encoding on $table table... " );
 335                 $wgDatabase->sourceFile( archive( $patchFile ) );
 336                 wfOut( "ok\n" );
 337         }
 338 }
 339
 340 function do_schema_restructuring() {
 341         global $wgDatabase;
 342         $fname = "do_schema_restructuring";
 343         if ( $wgDatabase->tableExists( 'page' ) ) {
 344                 wfOut( "...page table already exists.\n" );
 345         } else {
 346                 wfOut( "...converting from cur/old to page/revision/text DB structure.\n" );
 347                 wfOut( wfTimestamp( TS_DB ) );
 348                 wfOut( "......checking for duplicate entries.\n" );
 349
 350                 list ( $cur, $old, $page, $revision, $text ) = $wgDatabase->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 351
 352                 $rows = $wgDatabase->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 353                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", $fname );
 354
 355                 if ( $wgDatabase->numRows( $rows ) > 0 ) {
 356                         wfOut( wfTimestamp( TS_DB ) );
 357                         wfOut( "......<b>Found duplicate entries</b>\n" );
 358                         wfOut( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 359                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 360                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 361                                         $duplicate[$row->cur_namespace] = array();
 362                                 }
 363                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 364                                 wfOut( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 365                         }
 366                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 367                         $firstCond = true;
 368                         foreach ( $duplicate as $ns => $titles ) {
 369                                 if ( $firstCond ) {
 370                                         $firstCond = false;
 371                                 } else {
 372                                         $sql .= ' OR ';
 373                                 }
 374                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 375                                 $first = true;
 376                                 foreach ( $titles as $t ) {
 377                                         if ( $first ) {
 378                                                 $sql .= $wgDatabase->addQuotes( $t );
 379                                                 $first = false;
 380                                         } else {
 381                                                 $sql .= ', ' . $wgDatabase->addQuotes( $t );
 382                                         }
 383                                 }
 384                                 $sql .= ") ) \n";
 385                         }
 386                         # By sorting descending, the most recent entry will be the first in the list.
 387                         # All following entries will be deleted by the next while-loop.
 388                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 389
 390                         $rows = $wgDatabase->query( $sql, $fname );
 391
 392                         $prev_title = $prev_namespace = false;
 393                         $deleteId = array();
 394
 395                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 396                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 397                                         $deleteId[] = $row->cur_id;
 398                                 }
 399                                 $prev_title     = $row->cur_title;
 400                                 $prev_namespace = $row->cur_namespace;
 401                         }
 402                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 403                         $rows = $wgDatabase->query( $sql, $fname );
 404                         wfOut( wfTimestamp( TS_DB ) );
 405                         wfOut( "......<b>Deleted</b> " . $wgDatabase->affectedRows() . " records.\n" );
 406                 }
 407
 408
 409                 wfOut( wfTimestamp( TS_DB ) );
 410                 wfOut( "......Creating tables.\n" );
 411                 $wgDatabase->query( "CREATE TABLE $page (
 412                         page_id int(8) unsigned NOT NULL auto_increment,
 413                         page_namespace int NOT NULL,
 414                         page_title varchar(255) binary NOT NULL,
 415                         page_restrictions tinyblob NOT NULL,
 416                         page_counter bigint(20) unsigned NOT NULL default '0',
 417                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 418                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 419                         page_random real unsigned NOT NULL,
 420                         page_touched char(14) binary NOT NULL default '',
 421                         page_latest int(8) unsigned NOT NULL,
 422                         page_len int(8) unsigned NOT NULL,
 423
 424                         PRIMARY KEY page_id (page_id),
 425                         UNIQUE INDEX name_title (page_namespace,page_title),
 426                         INDEX (page_random),
 427                         INDEX (page_len)
 428                         ) ENGINE=InnoDB", $fname );
 429                 $wgDatabase->query( "CREATE TABLE $revision (
 430                         rev_id int(8) unsigned NOT NULL auto_increment,
 431                         rev_page int(8) unsigned NOT NULL,
 432                         rev_comment tinyblob NOT NULL,
 433                         rev_user int(5) unsigned NOT NULL default '0',
 434                         rev_user_text varchar(255) binary NOT NULL default '',
 435                         rev_timestamp char(14) binary NOT NULL default '',
 436                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 437                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 438                         rev_len int(8) unsigned,
 439                         rev_parent_id int(8) unsigned default NULL,
 440                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 441                         UNIQUE INDEX rev_id (rev_id),
 442                         INDEX rev_timestamp (rev_timestamp),
 443                         INDEX page_timestamp (rev_page,rev_timestamp),
 444                         INDEX user_timestamp (rev_user,rev_timestamp),
 445                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 446                         ) ENGINE=InnoDB", $fname );
 447
 448                 wfOut( wfTimestamp( TS_DB ) );
 449                 wfOut( "......Locking tables.\n" );
 450                 $wgDatabase->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", $fname );
 451
 452                 $maxold = intval( $wgDatabase->selectField( 'old', 'max(old_id)', '', $fname ) );
 453                 wfOut( wfTimestamp( TS_DB ) );
 454                 wfOut( "......maxold is {$maxold}\n" );
 455
 456                 wfOut( wfTimestamp( TS_DB ) );
 457                 global $wgLegacySchemaConversion;
 458                 if ( $wgLegacySchemaConversion ) {
 459                         // Create HistoryBlobCurStub entries.
 460                         // Text will be pulled from the leftover 'cur' table at runtime.
 461                         wfOut( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 462                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 463                         $cur_flags = "'object'";
 464                 } else {
 465                         // Copy all cur text in immediately: this may take longer but avoids
 466                         // having to keep an extra table around.
 467                         wfOut( "......Moving text from cur.\n" );
 468                         $cur_text = 'cur_text';
 469                         $cur_flags = "''";
 470                 }
 471                 $wgDatabase->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 472                                         old_timestamp, old_minor_edit, old_flags)
 473                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 474                         FROM $cur", $fname );
 475
 476                 wfOut( wfTimestamp( TS_DB ) );
 477                 wfOut( "......Setting up revision table.\n" );
 478                 $wgDatabase->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 479                                 rev_minor_edit)
 480                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 481                                 old_timestamp, old_minor_edit
 482                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", $fname );
 483
 484                 wfOut( wfTimestamp( TS_DB ) );
 485                 wfOut( "......Setting up page table.\n" );
 486                 $wgDatabase->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 487                         page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 488                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 489                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 490                         FROM $cur,$revision
 491                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", $fname );
 492
 493                 wfOut( wfTimestamp( TS_DB ) );
 494                 wfOut( "......Unlocking tables.\n" );
 495                 $wgDatabase->query( "UNLOCK TABLES", $fname );
 496
 497                 wfOut( wfTimestamp( TS_DB ) );
 498                 wfOut( "......Renaming old.\n" );
 499                 $wgDatabase->query( "ALTER TABLE $old RENAME TO $text", $fname );
 500
 501                 wfOut( wfTimestamp( TS_DB ) );
 502                 wfOut( "...done.\n" );
 503         }
 504 }
 505
 506 function do_inverse_timestamp() {
 507         global $wgDatabase;
 508         if ( $wgDatabase->fieldExists( 'revision', 'inverse_timestamp' ) ) {
 509                 wfOut( "Removing revision.inverse_timestamp and fixing indexes... " );
 510                 $wgDatabase->sourceFile( archive( 'patch-inverse_timestamp.sql' ) );
 511                 wfOut( "ok\n" );
 512         } else {
 513                 wfOut( "...revision timestamp indexes already up to 2005-03-13\n" );
 514         }
 515 }
 516
 517 function do_text_id() {
 518         global $wgDatabase;
 519         if ( $wgDatabase->fieldExists( 'revision', 'rev_text_id' ) ) {
 520                 wfOut( "...rev_text_id already in place.\n" );
 521         } else {
 522                 wfOut( "Adding rev_text_id field... " );
 523                 $wgDatabase->sourceFile( archive( 'patch-rev_text_id.sql' ) );
 524                 wfOut( "ok\n" );
 525         }
 526 }
 527
 528 function do_namespace_size() {
 529         $tables = array(
 530                 'page'          => 'page',
 531                 'archive'       => 'ar',
 532                 'recentchanges' => 'rc',
 533                 'watchlist'     => 'wl',
 534                 'querycache'    => 'qc',
 535                 'logging'       => 'log',
 536         );
 537         foreach ( $tables as $table => $prefix ) {
 538                 do_namespace_size_on( $table, $prefix );
 539                 flush();
 540         }
 541 }
 542
 543 function do_namespace_size_on( $table, $prefix ) {
 544         global $wgDatabase, $wgDBtype;
 545         if ( $wgDBtype != 'mysql' )
 546                 return;
 547         $field = $prefix . '_namespace';
 548
 549         $tablename = $wgDatabase->tableName( $table );
 550         $result = $wgDatabase->query( "SHOW COLUMNS FROM $tablename LIKE '$field'" );
 551         $info = $wgDatabase->fetchObject( $result );
 552
 553         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 554                 wfOut( "...$field is already a full int ($info->Type).\n" );
 555         } else {
 556                 wfOut( "Promoting $field from $info->Type to int... " );
 557
 558                 $sql = "ALTER TABLE $tablename MODIFY $field int NOT NULL";
 559                 $wgDatabase->query( $sql );
 560
 561                 wfOut( "ok\n" );
 562         }
 563 }
 564
 565 function do_pagelinks_update() {
 566         global $wgDatabase;
 567         if ( $wgDatabase->tableExists( 'pagelinks' ) ) {
 568                 wfOut( "...already have pagelinks table.\n" );
 569         } else {
 570                 wfOut( "Converting links and brokenlinks tables to pagelinks... " );
 571                 $wgDatabase->sourceFile( archive( 'patch-pagelinks.sql' ) );
 572                 wfOut( "ok\n" );
 573                 flush();
 574
 575                 global $wgCanonicalNamespaceNames;
 576                 foreach ( $wgCanonicalNamespaceNames as $ns => $name ) {
 577                         if ( $ns != 0 ) {
 578                                 do_pagelinks_namespace( $ns );
 579                         }
 580                 }
 581         }
 582 }
 583
 584 function do_pagelinks_namespace( $namespace ) {
 585         global $wgDatabase, $wgContLang;
 586
 587         $ns = intval( $namespace );
 588         wfOut( "Cleaning up broken links for namespace $ns... " );
 589
 590         $pagelinks = $wgDatabase->tableName( 'pagelinks' );
 591         $name = $wgContLang->getNsText( $ns );
 592         $prefix = $wgDatabase->strencode( $name );
 593         $likeprefix = str_replace( '_', '\\_', $prefix );
 594
 595         $sql = "UPDATE $pagelinks
 596                    SET pl_namespace=$ns,
 597                        pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 598                  WHERE pl_namespace=0
 599                    AND pl_title LIKE '$likeprefix:%'";
 600
 601         $wgDatabase->query( $sql, 'do_pagelinks_namespace' );
 602         wfOut( "ok\n" );
 603 }
 604
 605 function do_drop_img_type() {
 606         global $wgDatabase;
 607
 608         if ( $wgDatabase->fieldExists( 'image', 'img_type' ) ) {
 609                 wfOut( "Dropping unused img_type field in image table... " );
 610                 $wgDatabase->sourceFile( archive( 'patch-drop_img_type.sql' ) );
 611                 wfOut( "ok\n" );
 612         } else {
 613                 wfOut( "...no img_type field in image table; Good.\n" );
 614         }
 615 }
 616
 617 function do_old_links_update() {
 618         global $wgDatabase;
 619         if ( $wgDatabase->tableExists( 'pagelinks' ) ) {
 620                 wfOut( "...have pagelinks; skipping old links table updates.\n" );
 621         } else {
 622                 convertLinks(); flush();
 623         }
 624 }
 625
 626 function fix_ancient_imagelinks() {
 627         global $wgDatabase;
 628         $info = $wgDatabase->fieldInfo( 'imagelinks', 'il_from' );
 629         if ( $info && $info->type() === 'string' ) {
 630                 wfOut( "Fixing ancient broken imagelinks table.\n" );
 631                 wfOut( "NOTE: you will have to run maintenance/refreshLinks.php after this.\n" );
 632                 $wgDatabase->sourceFile( archive( 'patch-fix-il_from.sql' ) );
 633                 wfOut( "ok\n" );
 634         } else {
 635                 wfOut( "...il_from OK\n" );
 636         }
 637 }
 638
 639 function do_user_unique_update() {
 640         global $wgDatabase;
 641         $duper = new UserDupes( $wgDatabase );
 642         if ( $duper->hasUniqueIndex() ) {
 643                 wfOut( "...already have unique user_name index.\n" );
 644         } else {
 645                 if ( !$duper->clearDupes() ) {
 646                         wfOut( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 647                 }
 648                 wfOut( "Adding unique index on user_name... " );
 649                 $wgDatabase->sourceFile( archive( 'patch-user_nameindex.sql' ) );
 650                 wfOut( "ok\n" );
 651         }
 652 }
 653
 654 function do_user_groups_update() {
 655         $fname = 'do_user_groups_update';
 656         global $wgDatabase;
 657
 658         if ( $wgDatabase->tableExists( 'user_groups' ) ) {
 659                 wfOut( "...user_groups table already exists.\n" );
 660                 return do_user_groups_reformat();
 661         }
 662
 663         wfOut( "Adding user_groups table... " );
 664         $wgDatabase->sourceFile( archive( 'patch-user_groups.sql' ) );
 665         wfOut( "ok\n" );
 666
 667         if ( !$wgDatabase->tableExists( 'user_rights' ) ) {
 668                 if ( $wgDatabase->fieldExists( 'user', 'user_rights' ) ) {
 669                         wfOut( "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion..." );
 670                         $wgDatabase->sourceFile( archive( 'patch-user_rights.sql' ) );
 671                         wfOut( "ok\n" );
 672                 } else {
 673                         wfOut( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 674                         wfOut( "*** You may need to manually configure some sysops by manipulating\n" );
 675                         wfOut( "*** the user_groups table.\n" );
 676                         return;
 677                 }
 678         }
 679
 680         wfOut( "Converting user_rights table to user_groups... " );
 681         $result = $wgDatabase->select( 'user_rights',
 682                 array( 'ur_user', 'ur_rights' ),
 683                 array( "ur_rights != ''" ),
 684                 $fname );
 685
 686         while ( $row = $wgDatabase->fetchObject( $result ) ) {
 687                 $groups = array_unique(
 688                         array_map( 'trim',
 689                                 explode( ',', $row->ur_rights ) ) );
 690
 691                 foreach ( $groups as $group ) {
 692                         $wgDatabase->insert( 'user_groups',
 693                                 array(
 694                                         'ug_user'  => $row->ur_user,
 695                                         'ug_group' => $group ),
 696                                 $fname );
 697                 }
 698         }
 699         wfOut( "ok\n" );
 700 }
 701
 702 function do_user_groups_reformat() {
 703         # Check for bogus formats from previous 1.5 alpha code.
 704         global $wgDatabase;
 705         $info = $wgDatabase->fieldInfo( 'user_groups', 'ug_group' );
 706
 707         if ( $info->type() == 'int' ) {
 708                 $oldug = $wgDatabase->tableName( 'user_groups' );
 709                 $newug = $wgDatabase->tableName( 'user_groups_bogus' );
 710                 wfOut( "user_groups is in bogus intermediate format. Renaming to $newug... " );
 711                 $wgDatabase->query( "ALTER TABLE $oldug RENAME TO $newug" );
 712                 wfOut( "ok\n" );
 713
 714                 wfOut( "Re-adding fresh user_groups table... " );
 715                 $wgDatabase->sourceFile( archive( 'patch-user_groups.sql' ) );
 716                 wfOut( "ok\n" );
 717
 718                 wfOut( "***\n" );
 719                 wfOut( "*** WARNING: You will need to manually fix up user permissions in the user_groups\n" );
 720                 wfOut( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 721                 wfOut( "***\n" );
 722         } else {
 723                 wfOut( "...user_groups is in current format.\n" );
 724         }
 725
 726 }
 727
 728 function do_watchlist_null() {
 729         # Make sure wl_notificationtimestamp can be NULL,
 730         # and update old broken items.
 731         global $wgDatabase;
 732         $info = $wgDatabase->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 733
 734         if ( !$info->nullable() ) {
 735                 wfOut( "Making wl_notificationtimestamp nullable... " );
 736                 $wgDatabase->sourceFile( archive( 'patch-watchlist-null.sql' ) );
 737                 wfOut( "ok\n" );
 738         } else {
 739                 wfOut( "...wl_notificationtimestamp is already nullable.\n" );
 740         }
 741
 742 }
 743
 744 /**
 745  * @bug 3946
 746  */
 747 function do_page_random_update() {
 748         global $wgDatabase;
 749
 750         wfOut( "Setting page_random to a random value on rows where it equals 0..." );
 751
 752         $page = $wgDatabase->tableName( 'page' );
 753         $wgDatabase->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", 'do_page_random_update' );
 754         $rows = $wgDatabase->affectedRows();
 755
 756         wfOut( "changed $rows rows\n" );
 757 }
 758
 759 function do_templatelinks_update() {
 760         global $wgDatabase;
 761         $fname = 'do_templatelinks_update';
 762
 763         if ( $wgDatabase->tableExists( 'templatelinks' ) ) {
 764                 wfOut( "...templatelinks table already exists\n" );
 765                 return;
 766         }
 767         wfOut( "Creating templatelinks table...\n" );
 768         $wgDatabase->sourceFile( archive( 'patch-templatelinks.sql' ) );
 769         wfOut( "Populating...\n" );
 770         if ( wfGetLB()->getServerCount() > 1 ) {
 771                 // Slow, replication-friendly update
 772                 $res = $wgDatabase->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 773                         array( 'pl_namespace' => NS_TEMPLATE ), $fname );
 774                 $count = 0;
 775                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
 776                         $count = ( $count + 1 ) % 100;
 777                         if ( $count == 0 ) {
 778                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
 779                                         wfWaitForSlaves( 10 );
 780                                 } else {
 781                                         sleep( 1 );
 782                                 }
 783                         }
 784                         $wgDatabase->insert( 'templatelinks',
 785                                 array(
 786                                         'tl_from' => $row->pl_from,
 787                                         'tl_namespace' => $row->pl_namespace,
 788                                         'tl_title' => $row->pl_title,
 789                                 ), $fname
 790                         );
 791
 792                 }
 793         } else {
 794                 // Fast update
 795                 $wgDatabase->insertSelect( 'templatelinks', 'pagelinks',
 796                         array(
 797                                 'tl_from' => 'pl_from',
 798                                 'tl_namespace' => 'pl_namespace',
 799                                 'tl_title' => 'pl_title'
 800                         ), array(
 801                                 'pl_namespace' => 10
 802                         ), $fname
 803                 );
 804         }
 805         wfOut( "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n" );
 806 }
 807
 808 // Add index on ( rc_namespace, rc_user_text ) [Jul. 2006]
 809 // Add index on ( rc_user_text, rc_timestamp ) [Nov. 2006]
 810 function do_rc_indices_update() {
 811         global $wgDatabase;
 812         wfOut( "Checking for additional recent changes indices...\n" );
 813
 814         $indexes = array(
 815                 'rc_ns_usertext' => 'patch-recentchanges-utindex.sql',
 816                 'rc_user_text' => 'patch-rc_user_text-index.sql',
 817         );
 818
 819         foreach ( $indexes as $index => $patch ) {
 820                 $info = $wgDatabase->indexInfo( 'recentchanges', $index, __METHOD__ );
 821                 if ( !$info ) {
 822                         wfOut( "...index `{$index}` not found; adding..." );
 823                         $wgDatabase->sourceFile( archive( $patch ) );
 824                         wfOut( "done.\n" );
 825                 } else {
 826                         wfOut( "...index `{$index}` seems ok.\n" );
 827                 }
 828         }
 829 }
 830
 831 function index_has_field( $table, $index, $field ) {
 832         global $wgDatabase;
 833         wfOut( "Checking if $table index $index includes field $field...\n" );
 834         $info = $wgDatabase->indexInfo( $table, $index, __METHOD__ );
 835         if ( $info ) {
 836                 foreach ( $info as $row ) {
 837                         if ( $row->Column_name == $field ) {
 838                                 wfOut( "...index $index on table $table seems to be ok\n" );
 839                                 return true;
 840                         }
 841                 }
 842         }
 843         wfOut( "...index $index on table $table has no field $field; adding\n" );
 844         return false;
 845 }
 846
 847 function do_backlinking_indices_update() {
 848         global $wgDatabase;
 849         wfOut( "Checking for backlinking indices...\n" );
 850         if ( !index_has_field( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 851                 !index_has_field( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 852                 !index_has_field( 'imagelinks', 'il_to', 'il_from' ) )
 853         {
 854                 $wgDatabase->sourceFile( archive( 'patch-backlinkindexes.sql' ) );
 855                 wfOut( "...backlinking indices updated\n" );
 856         }
 857 }
 858
 859 function do_categorylinks_indices_update() {
 860         global $wgDatabase;
 861         wfOut( "Checking for categorylinks indices...\n" );
 862         if ( !index_has_field( 'categorylinks', 'cl_sortkey', 'cl_from' ) )
 863         {
 864                 $wgDatabase->sourceFile( archive( 'patch-categorylinksindex.sql' ) );
 865                 wfOut( "...categorylinks indices updated\n" );
 866         }
 867 }
 868
 869 function do_filearchive_indices_update() {
 870         global $wgDatabase;
 871         wfOut( "Checking filearchive indices...\n" );
 872         $info = $wgDatabase->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 873         if ( !$info )
 874         {
 875                 $wgDatabase->sourceFile( archive( 'patch-filearchive-user-index.sql' ) );
 876                 wfOut( "...filearchive indices updated\n" );
 877         }
 878 }
 879
 880 function maybe_do_profiling_memory_update() {
 881         global $wgDatabase;
 882         if ( !$wgDatabase->tableExists( 'profiling' ) ) {
 883                 // Simply ignore
 884         } elseif ( $wgDatabase->fieldExists( 'profiling', 'pf_memory' ) ) {
 885                 wfOut( "...profiling table has pf_memory field.\n" );
 886         } else {
 887                 wfOut( "Adding pf_memory field to table profiling..." );
 888                 $wgDatabase->sourceFile( archive( 'patch-profiling-memory.sql' ) );
 889                 wfOut( "ok\n" );
 890         }
 891 }
 892
 893 function do_stats_init() {
 894         // Sometimes site_stats table is not properly populated.
 895         global $wgDatabase;
 896         wfOut( "Checking site_stats row..." );
 897         $row = $wgDatabase->selectRow( 'site_stats', '*', array( 'ss_row_id' => 1 ), __METHOD__ );
 898         if ( $row === false ) {
 899                 wfOut( "data is missing! rebuilding...\n" );
 900         } elseif ( isset( $row->site_stats ) && $row->ss_total_pages == -1 ) {
 901                 wfOut( "missing ss_total_pages, rebuilding...\n" );
 902         } else {
 903                 wfOut( "ok.\n" );
 904                 return;
 905         }
 906         SiteStatsInit::doAllAndCommit( false );
 907 }
 908
 909 function do_active_users_init() {
 910         global $wgDatabase;
 911         $activeUsers = $wgDatabase->selectField( 'site_stats', 'ss_active_users', false, __METHOD__ );
 912         if ( $activeUsers == -1 ) {
 913                 $activeUsers = $wgDatabase->selectField( 'recentchanges',
 914                         'COUNT( DISTINCT rc_user_text )',
 915                         array( 'rc_user != 0', 'rc_bot' => 0, "rc_log_type != 'newusers'" ), __METHOD__
 916                 );
 917                 $wgDatabase->update( 'site_stats',
 918                         array( 'ss_active_users' => intval( $activeUsers ) ),
 919                         array( 'ss_row_id' => 1 ), __METHOD__, array( 'LIMIT' => 1 )
 920                 );
 921         }
 922         wfOut( "...ss_active_users user count set...\n" );
 923 }
 924
 925 function purge_cache() {
 926         global $wgDatabase;
 927         # We can't guarantee that the user will be able to use TRUNCATE,
 928         # but we know that DELETE is available to us
 929         wfOut( "Purging caches..." );
 930         $wgDatabase->delete( 'objectcache', '*', __METHOD__ );
 931         wfOut( "done.\n" );
 932 }
 933
 934 function do_all_updates( $shared = false, $purge = true ) {
 935         global $wgSharedDB, $wgSharedTables, $wgDatabase, $wgDBtype;
 936
 937         $updater = DatabaseUpdater::newForDb( $wgDatabase, $shared );
 938
 939         wfRunHooks( 'LoadExtensionSchemaUpdates', array( &$updater ) );
 940
 941         $updater->doUpdates();
 942
 943         if ( $wgDBtype === 'postgres' ) {
 944                 return;
 945         }
 946
 947         wfOut( "Deleting old default messages (this may take a long time!)..." );
 948         if ( !defined( 'MW_NO_SETUP' ) ) {
 949                 define( 'MW_NO_SETUP', true );
 950         }
 951         require_once 'deleteDefaultMessages.php';
 952         DeleteDefaultMessages::reallyExecute();
 953         wfOut( "Done\n" );
 954
 955         do_stats_init();
 956
 957         if ( $purge ) {
 958                 purge_cache();
 959         }
 960 }
 961
 962 function archive( $name ) {
 963         global $wgDBtype, $IP;
 964         if ( file_exists( "$IP/maintenance/$wgDBtype/archives/$name" ) ) {
 965                 return "$IP/maintenance/$wgDBtype/archives/$name";
 966         } else {
 967                 return "$IP/maintenance/archives/$name";
 968         }
 969 }
 970
 971 function do_restrictions_update() {
 972         # Adding page_restrictions table, obsoleting page.page_restrictions.
 973         #  Migrating old restrictions to new table
 974         # -- Andrew Garrett, January 2007.
 975
 976         global $wgDatabase;
 977
 978         $name = 'page_restrictions';
 979         $patch = 'patch-page_restrictions.sql';
 980         $patch2 = 'patch-page_restrictions_sortkey.sql';
 981
 982         if ( $wgDatabase->tableExists( $name ) ) {
 983                 wfOut( "...$name table already exists.\n" );
 984         } else {
 985                 wfOut( "Creating $name table..." );
 986                 $wgDatabase->sourceFile( archive( $patch ) );
 987                 $wgDatabase->sourceFile( archive( $patch2 ) );
 988                 wfOut( "ok\n" );
 989
 990                 wfOut( "Migrating old restrictions to new table..." );
 991
 992                 $res = $wgDatabase->select( 'page', array( 'page_id', 'page_restrictions' ), array( "page_restrictions!=''", "page_restrictions!='edit=:move='" ), __METHOD__ );
 993
 994                 $count = 0;
 995
 996                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
 997                         $count = ( $count + 1 ) % 100;
 998
 999                         if ( $count == 0 ) {
1000                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
1001                                         wfWaitForSlaves( 10 );
1002                                 } else {
1003                                         sleep( 1 );
1004                                 }
1005                         }
1006
1007                         # Figure out what the restrictions are..
1008                         $id = $row->page_id;
1009                         $flatrestrictions = explode( ':', $row->page_restrictions );
1010
1011                         $restrictions = array ();
1012                         foreach ( $flatrestrictions as $restriction ) {
1013                                 $thisrestriction = explode( '=', $restriction, 2 );
1014                                 if ( count( $thisrestriction ) == 1 ) {
1015                                         // Compatibility with old protections from before
1016                                         // separate move protection was added.
1017                                         list( $level ) = $thisrestriction;
1018                                         if ( $level ) {
1019                                                 $restrictions['edit'] = $level;
1020                                                 $restrictions['move'] = $level;
1021                                         }
1022                                 } else {
1023                                         list( $type, $level ) = $thisrestriction;
1024                                         if ( $level ) {
1025                                                 $restrictions[$type] = $level;
1026                                         }
1027                                 }
1028
1029                         $wgDatabase->update( 'page', array ( 'page_restrictions' => '' ), array( 'page_id' => $id ), __METHOD__ );
1030
1031                         }
1032
1033                         foreach ( $restrictions as $type => $level ) {
1034                                 $wgDatabase->insert( 'page_restrictions', array ( 'pr_page' => $id,
1035                                                                                         'pr_type' => $type,
1036                                                                                         'pr_level' => $level,
1037                                                                                         'pr_cascade' => 0,
1038                                                                                         'pr_expiry' => 'infinity' ),
1039                                                                                         __METHOD__ );
1040                         }
1041                 }
1042                 wfOut( "ok\n" );
1043         }
1044 }
1045
1046 function do_category_population() {
1047         if ( update_row_exists( 'populate category' ) ) {
1048                 wfOut( "...category table already populated.\n" );
1049                 return;
1050         }
1051         require_once( 'populateCategory.php' );
1052         wfOut(
1053                 "Populating category table, printing progress markers. " .
1054                 "For large databases, you\n" .
1055                 "may want to hit Ctrl-C and do this manually with maintenance/\n" .
1056                 "populateCategory.php.\n"
1057         );
1058         $task = new PopulateCategory();
1059         $task->execute();
1060         wfOut( "Done populating category table.\n" );
1061 }
1062
1063 function do_populate_parent_id() {
1064         if ( update_row_exists( 'populate rev_parent_id' ) ) {
1065                 wfOut( "...rev_parent_id column already populated.\n" );
1066                 return;
1067         }
1068         require_once( 'populateParentId.php' );
1069         $task = new PopulateParentId();
1070         $task->execute();
1071 }
1072
1073 function do_populate_rev_len() {
1074         if ( update_row_exists( 'populate rev_len' ) ) {
1075                 wfOut( "...rev_len column already populated.\n" );
1076                 return;
1077         }
1078         require_once( 'populateRevisionLength.php' );
1079         $task = new PopulateRevisionLength();
1080         $task->execute();
1081 }
1082
1083 function do_collation_update() {
1084         global $wgDatabase, $wgCollationVersion;
1085         if ( $wgDatabase->selectField(
1086                 'categorylinks',
1087                 'COUNT(*)',
1088                 'cl_collation != ' . $wgDatabase->addQuotes( $wgCollationVersion ),
1089                 __FUNCTION__
1090         ) == 0 ) {
1091                 wfOut( "...collations up-to-date.\n" );
1092                 return;
1093         }
1094         require_once( 'updateCollation.php' );
1095         $task = new UpdateCollation();
1096         $task->execute();
1097 }
1098
1099 function sqlite_initial_indexes() {
1100         global $wgDatabase;
1101         // initial-indexes.sql fails if the indexes are already present, so we perform a quick check if our database is newer.
1102         if ( update_row_exists( 'initial_indexes' ) || $wgDatabase->indexExists( 'user', 'user_name' ) ) {
1103                 wfOut( "...have initial indexes\n" );
1104                 return;
1105         }
1106         wfOut( "Adding initial indexes..." );
1107         $wgDatabase->sourceFile( archive( 'initial-indexes.sql' ) );
1108         wfOut( "done\n" );
1109 }
1110
1111 function sqlite_setup_searchindex() {
1112         global $wgDatabase;
1113         $module = $wgDatabase->getFulltextSearchModule();
1114         $fts3tTable = update_row_exists( 'fts3' );
1115         if ( $fts3tTable &&  !$module ) {
1116                 wfOut( '...PHP is missing FTS3 support, downgrading tables...' );
1117                 $wgDatabase->sourceFile( archive( 'searchindex-no-fts.sql' ) );
1118                 wfOut( "done\n" );
1119         } elseif ( !$fts3tTable && $module == 'FTS3' ) {
1120                 wfOut( '...adding FTS3 search capabilities...' );
1121                 $wgDatabase->sourceFile( archive( 'searchindex-fts3.sql' ) );
1122                 wfOut( "done\n" );
1123         } else {
1124                 wfOut( "...fulltext search table appears to be in order.\n" );
1125         }
1126 }
1127
1128 function do_unique_pl_tl_il() {
1129         global $wgDatabase;
1130         $info = $wgDatabase->indexInfo( 'pagelinks', 'pl_namespace' );
1131         if ( is_array( $info ) && !$info[0]->Non_unique ) {
1132                 wfOut( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
1133         } else {
1134                 wfOut( "Making pl_namespace, tl_namespace and il_to indices UNIQUE... " );
1135                 $wgDatabase->sourceFile( archive( 'patch-pl-tl-il-unique.sql' ) );
1136                 wfOut( "ok\n" );
1137         }
1138 }
1139
1140 function do_log_search_population() {
1141         if ( update_row_exists( 'populate log_search' ) ) {
1142                 wfOut( "...log_search table already populated.\n" );
1143                 return;
1144         }
1145         require_once( 'populateLogSearch.php' );
1146         wfOut(
1147 "Populating log_search table, printing progress markers. For large\n" .
1148 "databases, you may want to hit Ctrl-C and do this manually with\n" .
1149 "maintenance/populateLogSearch.php.\n" );
1150         $task = new PopulateLogSearch();
1151         $task->execute();
1152         wfOut( "Done populating log_search table.\n" );
1153 }
1154
1155 function rename_eu_wiki_id() {
1156         global $wgDatabase;
1157         if ( $wgDatabase->fieldExists( 'external_user', 'eu_local_id' ) ) {
1158                 wfOut( "...eu_wiki_id already renamed to eu_local_id.\n" );
1159                 return;
1160         }
1161         wfOut( "Renaming eu_wiki_id -> eu_local_id... " );
1162         $wgDatabase->sourceFile( archive( 'patch-eu_local_id.sql' ) );
1163         wfOut( "ok\n" );
1164 }
1165
1166 function do_update_transcache_field() {
1167         global $wgDatabase;
1168         if ( update_row_exists( 'convert transcache field' ) ) {
1169                 wfOut( "...transcache tc_time already converted.\n" );
1170                 return;
1171         } else {
1172                 wfOut( "Converting tc_time from UNIX epoch to MediaWiki timestamp... " );
1173                 $wgDatabase->sourceFile( archive( 'patch-tc-timestamp.sql' ) );
1174                 wfOut( "ok\n" );
1175         }
1176 }
1177
1178 function do_update_mime_minor_field() {
1179         if ( update_row_exists( 'mime_minor_length' ) ) {
1180                 wfOut( "...*_mime_minor fields are already long enough.\n" );
1181         } else {
1182                 global $wgDatabase;
1183                 wfOut( "Altering all *_mime_minor fields to 100 bytes in size ... " );
1184                 $wgDatabase->sourceFile( archive( 'patch-mime_minor_length.sql' ) );
1185                 wfOut( "ok\n" );
1186         }
1187 }
1188
1189 /***********************************************************************
1190  * Start PG stuff
1191  * TODO: merge with above
1192  ***********************************************************************/
1193
1194 function pg_describe_table( $table ) {
1195         global $wgDatabase, $wgDBmwschema;
1196         $q = <<<END
1197 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
1198         WHERE pg_class.relnamespace = pg_namespace.oid
1199           AND attrelid=pg_class.oid AND attnum > 0
1200           AND relname=%s AND nspname=%s
1201 END;
1202         $res = $wgDatabase->query( sprintf( $q,
1203                         $wgDatabase->addQuotes( $table ),
1204                         $wgDatabase->addQuotes( $wgDBmwschema ) ) );
1205         if ( !$res ) {
1206                 return null;
1207         }
1208
1209         $cols = array();
1210         while ( $r = $wgDatabase->fetchRow( $res ) ) {
1211                 $cols[] = array(
1212                                 "name" => $r[0],
1213                                 "ord" => $r[1],
1214                         );
1215         }
1216         return $cols;
1217 }
1218
1219 function pg_describe_index( $idx ) {
1220         global $wgDatabase, $wgDBmwschema;
1221
1222         // first fetch the key (which is a list of columns ords) and
1223         // the table the index applies to (an oid)
1224         $q = <<<END
1225 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
1226         WHERE nspname=%s
1227           AND pg_class.relnamespace = pg_namespace.oid
1228           AND relname=%s
1229           AND indexrelid=pg_class.oid
1230 END;
1231         $res = $wgDatabase->query( sprintf( $q,
1232                         $wgDatabase->addQuotes( $wgDBmwschema ),
1233                         $wgDatabase->addQuotes( $idx ) ) );
1234         if ( !$res ) {
1235                 return null;
1236         }
1237         if ( !( $r = $wgDatabase->fetchRow( $res ) ) ) {
1238                 return null;
1239         }
1240
1241         $indkey = $r[0];
1242         $relid = intval( $r[1] );
1243         $indkeys = explode( " ", $indkey );
1244
1245         $colnames = array();
1246         foreach ( $indkeys as $rid ) {
1247                 $query = <<<END
1248 SELECT attname FROM pg_class, pg_attribute
1249         WHERE attrelid=$relid
1250           AND attnum=%d
1251           AND attrelid=pg_class.oid
1252 END;
1253                 $r2 = $wgDatabase->query( sprintf( $query, $rid ) );
1254                 if ( !$r2 ) {
1255                         return null;
1256                 }
1257                 if ( !( $row2 = $wgDatabase->fetchRow( $r2 ) ) ) {
1258                         return null;
1259                 }
1260                 $colnames[] = $row2[0];
1261         }
1262
1263         return $colnames;
1264 }
1265
1266 function pg_index_exists( $table, $index ) {
1267         global $wgDatabase, $wgDBmwschema;
1268         $exists = $wgDatabase->selectField( "pg_indexes", "indexname",
1269                         array(  "indexname" => $index,
1270                                 "tablename" => $table,
1271                                 "schemaname" => $wgDBmwschema ) );
1272         return $exists === $index;
1273 }
1274
1275 function pg_fkey_deltype( $fkey ) {
1276         global $wgDatabase, $wgDBmwschema;
1277         $q = <<<END
1278 SELECT confdeltype FROM pg_constraint, pg_namespace
1279         WHERE connamespace=pg_namespace.oid
1280           AND nspname=%s
1281           AND conname=%s;
1282 END;
1283         $r = $wgDatabase->query( sprintf( $q,
1284                 $wgDatabase->addQuotes( $wgDBmwschema ),
1285                 $wgDatabase->addQuotes( $fkey ) ) );
1286         if ( !( $row = $wgDatabase->fetchRow( $r ) ) ) {
1287                 return null;
1288         }
1289         return $row[0];
1290 }
1291
1292 function pg_rule_def( $table, $rule ) {
1293         global $wgDatabase, $wgDBmwschema;
1294         $q = <<<END
1295 SELECT definition FROM pg_rules
1296         WHERE schemaname = %s
1297           AND tablename = %s
1298           AND rulename = %s
1299 END;
1300         $r = $wgDatabase->query( sprintf( $q,
1301                         $wgDatabase->addQuotes( $wgDBmwschema ),
1302                         $wgDatabase->addQuotes( $table ),
1303                         $wgDatabase->addQuotes( $rule ) ) );
1304         $row = $wgDatabase->fetchRow( $r );
1305         if ( !$row ) {
1306                 return null;
1307         }
1308         $d = $row[0];
1309         return $d;
1310 }
1311
1312 function do_postgres_updates() {
1313         global $wgDatabase, $wgDBmwschema, $wgDBts2schema, $wgShowExceptionDetails, $wgDBuser;
1314
1315         # # Gather version numbers in case we need them
1316         $version = $wgDatabase->getServerVersion(); # # long string
1317         $numver = $wgDatabase->numeric_version; # # X.Y e.g. 8.3
1318
1319         $wgShowExceptionDetails = 1;
1320
1321         # Just in case their LocalSettings.php does not have this:
1322         if ( !isset( $wgDBmwschema ) ) {
1323                 $wgDBmwschema = 'mediawiki';
1324         }
1325
1326         # Verify that this user is configured correctly
1327         $safeuser = $wgDatabase->addQuotes( $wgDBuser );
1328         $SQL = "SELECT array_to_string(useconfig,'*') FROM pg_catalog.pg_user WHERE usename = $safeuser";
1329         $config = pg_fetch_result( $wgDatabase->doQuery( $SQL ), 0, 0 );
1330         $conf = array();
1331         foreach ( explode( '*', $config ) as $c ) {
1332                 list( $x, $y ) = explode( '=', $c );
1333                 $conf[$x] = $y;
1334         }
1335         if ( !array_key_exists( 'search_path', $conf ) ) {
1336                 $search_path = '';
1337         } else {
1338                 $search_path = $conf['search_path'];
1339         }
1340         if ( strpos( $search_path, $wgDBmwschema ) === false ) {
1341                 wfOut( "Adding in schema \"$wgDBmwschema\" to search_path for user \"$wgDBuser\"\n" );
1342                 $search_path = "$wgDBmwschema, $search_path";
1343         }
1344         if ( strpos( $search_path, $wgDBts2schema ) === false ) {
1345                 wfOut( "Adding in schema \"$wgDBts2schema\" to search_path for user \"$wgDBuser\"\n" );
1346                 $search_path = "$search_path, $wgDBts2schema";
1347         }
1348         $search_path = str_replace( ', ,', ',', $search_path );
1349         if ( array_key_exists( 'search_path', $conf ) === false || $search_path != $conf['search_path'] ) {
1350                 $wgDatabase->doQuery( "ALTER USER $wgDBuser SET search_path = $search_path" );
1351                 $wgDatabase->doQuery( "SET search_path = $search_path" );
1352         } else {
1353                 $path = $conf['search_path'];
1354                 wfOut( "... search_path for user \"$wgDBuser\" looks correct ($path)\n" );
1355         }
1356         $goodconf = array(
1357                 'client_min_messages' => 'error',
1358                 'DateStyle'           => 'ISO, YMD',
1359                 'TimeZone'            => 'GMT'
1360         );
1361         foreach ( array_keys( $goodconf ) AS $key ) {
1362                 $value = $goodconf[$key];
1363                 if ( !array_key_exists( $key, $conf ) or $conf[$key] !== $value ) {
1364                         wfOut( "Setting $key to '$value' for user \"$wgDBuser\"\n" );
1365                         $wgDatabase->doQuery( "ALTER USER $wgDBuser SET $key = '$value'" );
1366                         $wgDatabase->doQuery( "SET $key = '$value'" );
1367                 } else {
1368                         wfOut( "... default value of \"$key\" is correctly set to \"$value\" for user \"$wgDBuser\"\n" );
1369                 }
1370         }
1371
1372         $newsequences = array(
1373                 "logging_log_id_seq",
1374                 "page_restrictions_pr_id_seq",
1375         );
1376
1377         $renamed_sequences = array(
1378                 array('ipblocks_ipb_id_val', 'ipblocks_ipb_id_seq'),
1379                 array('rev_rev_id_val', 'revision_rev_id_seq'),
1380                 array('text_old_id_val', 'text_old_id_seq'),
1381                 array('category_id_seq', 'category_cat_id_seq'),
1382                 array('rc_rc_id_seq', 'recentchanges_rc_id_seq'),
1383                 array('log_log_id_seq', 'logging_log_id_seq'),
1384                 array('pr_id_val', 'page_restrictions_pr_id_seq'),
1385         );
1386
1387         $newtables = array(
1388                 array( "category",          "patch-category.sql" ),
1389                 array( "mwuser",            "patch-mwuser.sql" ),
1390                 array( "pagecontent",       "patch-pagecontent.sql" ),
1391                 array( "querycachetwo",     "patch-querycachetwo.sql" ),
1392                 array( "page_props",        "patch-page_props.sql" ),
1393                 array( "page_restrictions", "patch-page_restrictions.sql" ),
1394                 array( "profiling",         "patch-profiling.sql" ),
1395                 array( "protected_titles",  "patch-protected_titles.sql" ),
1396                 array( "redirect",          "patch-redirect.sql" ),
1397                 array( "updatelog",         "patch-updatelog.sql" ),
1398                 array( 'change_tag',        'patch-change_tag.sql' ),
1399                 array( 'tag_summary',       'patch-change_tag.sql' ),
1400                 array( 'valid_tag',         'patch-change_tag.sql' ),
1401                 array( 'user_properties',   'patch-user_properties.sql' ),
1402                 array( 'log_search',        'patch-log_search.sql' ),
1403                 array( 'l10n_cache',        'patch-l10n_cache.sql' ),
1404                 array( 'iwlinks',           'patch-iwlinks.sql' ),
1405         );
1406
1407         $newcols = array(
1408                 array( "archive",       "ar_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1409                 array( "archive",       "ar_len",               "INTEGER" ),
1410                 array( "archive",       "ar_page_id",           "INTEGER" ),
1411                 array( "archive",       "ar_parent_id",         "INTEGER" ),
1412                 array( "image",         "img_sha1",             "TEXT NOT NULL DEFAULT ''" ),
1413                 array( "ipblocks",      "ipb_allow_usertalk",   "SMALLINT NOT NULL DEFAULT 0" ),
1414                 array( "ipblocks",      "ipb_anon_only",        "SMALLINT NOT NULL DEFAULT 0" ),
1415                 array( "ipblocks",      "ipb_by_text",          "TEXT NOT NULL DEFAULT ''" ),
1416                 array( "ipblocks",      "ipb_block_email",      "SMALLINT NOT NULL DEFAULT 0" ),
1417                 array( "ipblocks",      "ipb_create_account",   "SMALLINT NOT NULL DEFAULT 1" ),
1418                 array( "ipblocks",      "ipb_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
1419                 array( "ipblocks",      "ipb_enable_autoblock", "SMALLINT NOT NULL DEFAULT 1" ),
1420                 array( "filearchive",   "fa_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1421                 array( "logging",       "log_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
1422                 array( "logging",       "log_id",               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ),
1423                 array( "logging",       "log_params",           "TEXT" ),
1424                 array( "mwuser",        "user_editcount",       "INTEGER" ),
1425                 array( "mwuser",        "user_hidden",          "SMALLINT NOT NULL DEFAULT 0" ),
1426                 array( "mwuser",        "user_newpass_time",    "TIMESTAMPTZ" ),
1427                 array( "oldimage",      "oi_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1428                 array( "oldimage",      "oi_major_mime",        "TEXT NOT NULL DEFAULT 'unknown'" ),
1429                 array( "oldimage",      "oi_media_type",        "TEXT" ),
1430                 array( "oldimage",      "oi_metadata",          "BYTEA NOT NULL DEFAULT ''" ),
1431                 array( "oldimage",      "oi_minor_mime",        "TEXT NOT NULL DEFAULT 'unknown'" ),
1432                 array( "oldimage",      "oi_sha1",              "TEXT NOT NULL DEFAULT ''" ),
1433                 array( "page_restrictions", "pr_id",            "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_val')" ),
1434                 array( "profiling",     "pf_memory",            "NUMERIC(18,10) NOT NULL DEFAULT 0" ),
1435                 array( "recentchanges", "rc_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1436                 array( "recentchanges", "rc_log_action",        "TEXT" ),
1437                 array( "recentchanges", "rc_log_type",          "TEXT" ),
1438                 array( "recentchanges", "rc_logid",             "INTEGER NOT NULL DEFAULT 0" ),
1439                 array( "recentchanges", "rc_new_len",           "INTEGER" ),
1440                 array( "recentchanges", "rc_old_len",           "INTEGER" ),
1441                 array( "recentchanges", "rc_params",            "TEXT" ),
1442                 array( "redirect",      "rd_interwiki",         "TEXT NULL" ),
1443                 array( "redirect",      "rd_fragment",          "TEXT NULL" ),
1444                 array( "revision",      "rev_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
1445                 array( "revision",      "rev_len",              "INTEGER" ),
1446                 array( "revision",      "rev_parent_id",        "INTEGER DEFAULT NULL" ),
1447                 array( "site_stats",    "ss_active_users",      "INTEGER DEFAULT '-1'" ),
1448                 array( "user_newtalk",  "user_last_timestamp",  "TIMESTAMPTZ" ),
1449                 array( "logging",       "log_user_text",        "TEXT NOT NULL DEFAULT ''" ),
1450                 array( "logging",       "log_page",             "INTEGER" ),
1451                 array( "interwiki",     "iw_api",               "TEXT NOT NULL DEFAULT ''"),
1452                 array( "interwiki",     "iw_wikiid",            "TEXT NOT NULL DEFAULT ''"),
1453         );
1454
1455
1456         # table, column, desired type, USING clause if needed (with new default if needed)
1457         $typechanges = array(
1458                 array( "archive",      "ar_deleted",      "smallint", "" ),
1459                 array( "archive",      "ar_minor_edit",   "smallint", "ar_minor_edit::smallint DEFAULT 0" ),
1460                 array( "filearchive",  "fa_deleted",      "smallint", "" ),
1461                 array( "filearchive",  "fa_height",       "integer",  "" ),
1462                 array( "filearchive",  "fa_metadata",     "bytea",    "decode(fa_metadata,'escape')" ),
1463                 array( "filearchive",  "fa_size",         "integer",  "" ),
1464                 array( "filearchive",  "fa_width",        "integer",  "" ),
1465                 array( "filearchive",  "fa_storage_group", "text",     "" ),
1466                 array( "filearchive",  "fa_storage_key",  "text",     "" ),
1467                 array( "image",        "img_metadata",    "bytea",    "decode(img_metadata,'escape')" ),
1468                 array( "image",        "img_size",        "integer",  "" ),
1469                 array( "image",        "img_width",       "integer",  "" ),
1470                 array( "image",        "img_height",      "integer",  "" ),
1471                 array( "interwiki",    "iw_local",        "smallint", "iw_local::smallint DEFAULT 0" ),
1472                 array( "interwiki",    "iw_trans",        "smallint", "iw_trans::smallint DEFAULT 0" ),
1473                 array( "ipblocks",     "ipb_auto",        "smallint", "ipb_auto::smallint DEFAULT 0" ),
1474                 array( "ipblocks",     "ipb_anon_only",   "smallint", "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ),
1475                 array( "ipblocks",     "ipb_create_account", "smallint", "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ),
1476                 array( "ipblocks",     "ipb_enable_autoblock", "smallint", "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ),
1477                 array( "ipblocks",     "ipb_block_email", "smallint", "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ),
1478                 array( "ipblocks",     "ipb_address",     "text",     "ipb_address::text" ),
1479                 array( "ipblocks",     "ipb_deleted",     "smallint", "ipb_deleted::smallint DEFAULT 0" ),
1480                 array( "math",         "math_inputhash",  "bytea",    "decode(math_inputhash,'escape')" ),
1481                 array( "math",         "math_outputhash", "bytea",    "decode(math_outputhash,'escape')" ),
1482                 array( "mwuser",       "user_token",      "text",     "" ),
1483                 array( "mwuser",       "user_email_token", "text",     "" ),
1484                 array( "objectcache",  "keyname",         "text",     "" ),
1485                 array( "oldimage",     "oi_height",       "integer",  "" ),
1486                 array( "oldimage",     "oi_metadata",     "bytea",    "decode(img_metadata,'escape')" ),
1487                 array( "oldimage",     "oi_size",         "integer",  "" ),
1488                 array( "oldimage",     "oi_width",        "integer",  "" ),
1489                 array( "page",         "page_is_redirect", "smallint", "page_is_redirect::smallint DEFAULT 0" ),
1490                 array( "page",         "page_is_new",     "smallint", "page_is_new::smallint DEFAULT 0" ),
1491                 array( "querycache",   "qc_value",        "integer",  "" ),
1492                 array( "querycachetwo", "qcc_value",       "integer",  "" ),
1493                 array( "recentchanges", "rc_bot",          "smallint", "rc_bot::smallint DEFAULT 0" ),
1494                 array( "recentchanges", "rc_deleted",      "smallint", "" ),
1495                 array( "recentchanges", "rc_minor",        "smallint", "rc_minor::smallint DEFAULT 0" ),
1496                 array( "recentchanges", "rc_new",          "smallint", "rc_new::smallint DEFAULT 0" ),
1497                 array( "recentchanges", "rc_type",         "smallint", "rc_type::smallint DEFAULT 0" ),
1498                 array( "recentchanges", "rc_patrolled",    "smallint", "rc_patrolled::smallint DEFAULT 0" ),
1499                 array( "revision",     "rev_deleted",     "smallint", "rev_deleted::smallint DEFAULT 0" ),
1500                 array( "revision",     "rev_minor_edit",  "smallint", "rev_minor_edit::smallint DEFAULT 0" ),
1501                 array( "templatelinks", "tl_namespace",    "smallint", "tl_namespace::smallint" ),
1502                 array( "user_newtalk", "user_ip",         "text",     "host(user_ip)" ),
1503         );
1504
1505         # table, column, nullability
1506         $nullchanges = array(
1507                 array( "oldimage", "oi_bits",       "NULL" ),
1508                 array( "oldimage", "oi_timestamp",  "NULL" ),
1509                 array( "oldimage", "oi_major_mime", "NULL" ),
1510                 array( "oldimage", "oi_minor_mime", "NULL" ),
1511         );
1512
1513         $newindexes = array(
1514                 array( "archive",       "archive_user_text",      "(ar_user_text)" ),
1515                 array( "image",         "img_sha1",               "(img_sha1)" ),
1516                 array( "oldimage",      "oi_sha1",                "(oi_sha1)" ),
1517                 array( "page",          "page_mediawiki_title",   "(page_title) WHERE page_namespace = 8" ),
1518                 array( "revision",      "rev_text_id_idx",        "(rev_text_id)" ),
1519                 array( "recentchanges", "rc_timestamp_bot",       "(rc_timestamp) WHERE rc_bot = 0" ),
1520                 array( "templatelinks", "templatelinks_from",     "(tl_from)" ),
1521                 array( "watchlist",     "wl_user",                "(wl_user)" ),
1522                 array( "logging",       "logging_user_type_time", "(log_user, log_type, log_timestamp)" ),
1523                 array( "logging",       "logging_page_id_time",   "(log_page,log_timestamp)" ),
1524                 array( "iwlinks",       "iwl_prefix_title_from",  "(iwl_prefix, iwl_title, iwl_from)" ),
1525         );
1526
1527         $newrules = array(
1528         );
1529
1530         # # All FK columns should be deferred
1531         $deferredcols = array(
1532                 array( "archive",          "ar_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1533                 array( "categorylinks",    "cl_from",         "page(page_id) ON DELETE CASCADE" ),
1534                 array( "externallinks",    "el_from",         "page(page_id) ON DELETE CASCADE" ),
1535                 array( "filearchive",      "fa_deleted_user", "mwuser(user_id) ON DELETE SET NULL" ),
1536                 array( "filearchive",      "fa_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1537                 array( "image",            "img_user",        "mwuser(user_id) ON DELETE SET NULL" ),
1538                 array( "imagelinks",       "il_from",         "page(page_id) ON DELETE CASCADE" ),
1539                 array( "ipblocks",         "ipb_by",          "mwuser(user_id) ON DELETE CASCADE" ),
1540                 array( "ipblocks",         "ipb_user",        "mwuser(user_id) ON DELETE SET NULL" ),
1541                 array( "langlinks",        "ll_from",         "page(page_id) ON DELETE CASCADE" ),
1542                 array( "logging",          "log_user",        "mwuser(user_id) ON DELETE SET NULL" ),
1543                 array( "oldimage",         "oi_name",         "image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" ),
1544                 array( "oldimage",         "oi_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1545                 array( "pagelinks",        "pl_from",         "page(page_id) ON DELETE CASCADE" ),
1546                 array( "page_props",       "pp_page",         "page (page_id) ON DELETE CASCADE" ),
1547                 array( "page_restrictions", "pr_page",         "page(page_id) ON DELETE CASCADE" ),
1548                 array( "protected_titles", "pt_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1549                 array( "recentchanges",    "rc_cur_id",       "page(page_id) ON DELETE SET NULL" ),
1550                 array( "recentchanges",    "rc_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1551                 array( "redirect",         "rd_from",         "page(page_id) ON DELETE CASCADE" ),
1552                 array( "revision",         "rev_page",        "page (page_id) ON DELETE CASCADE" ),
1553                 array( "revision",         "rev_user",        "mwuser(user_id) ON DELETE RESTRICT" ),
1554                 array( "templatelinks",    "tl_from",         "page(page_id) ON DELETE CASCADE" ),
1555                 array( "trackbacks",       "tb_page",         "page(page_id) ON DELETE CASCADE" ),
1556                 array( "user_groups",      "ug_user",         "mwuser(user_id) ON DELETE CASCADE" ),
1557                 array( "user_newtalk",     "user_id",         "mwuser(user_id) ON DELETE CASCADE" ),
1558                 array( "user_properties",  "up_user",         "mwuser(user_id) ON DELETE CASCADE" ),
1559                 array( "watchlist",        "wl_user",         "mwuser(user_id) ON DELETE CASCADE" ),
1560         );
1561
1562         # Create new sequences
1563         foreach ( $newsequences as $ns ) {
1564                 if ( ! $wgDatabase->sequenceExists( $ns ) ) {
1565                         wfOut( "Creating sequence $ns\n" );
1566                         $wgDatabase->query( "CREATE SEQUENCE $ns" );
1567                 }
1568         }
1569
1570         # Rename sequences
1571         foreach ( $renamed_sequences as $ren ) {
1572                 if ( $wgDatabase->sequenceExists( $ren[0] ) ) {
1573                         wfOut( "Renaming sequence $ren[0] to $ren[1]\n" );
1574                         $wgDatabase->query( "ALTER SEQUENCE $ren[0] RENAME TO $ren[1]" );
1575                 }
1576         }
1577
1578         # Create new tables
1579         foreach ( $newtables as $nt ) {
1580                 if ( $wgDatabase->tableExists( $nt[0] ) ) {
1581                         wfOut( "... table \"$nt[0]\" already exists\n" );
1582                         continue;
1583                 }
1584
1585                 wfOut( "Creating table \"$nt[0]\"\n" );
1586                 $wgDatabase->sourceFile( archive( $nt[1] ) );
1587         }
1588
1589         # Needed before newcols
1590         if ( $wgDatabase->tableExists( "archive2" ) ) {
1591                 wfOut( "Converting \"archive2\" back to normal archive table\n" );
1592                 if ( $wgDatabase->ruleExists( "archive", "archive_insert" ) ) {
1593                         wfOut( "Dropping rule \"archive_insert\"\n" );
1594                         $wgDatabase->query( "DROP RULE archive_insert ON archive" );
1595                 }
1596                 if ( $wgDatabase->ruleExists( "archive", "archive_delete" ) ) {
1597                         wfOut( "Dropping rule \"archive_delete\"\n" );
1598                         $wgDatabase->query( "DROP RULE archive_delete ON archive" );
1599                 }
1600                 $wgDatabase->sourceFile( archive( "patch-remove-archive2.sql" ) );
1601         }
1602         else
1603                 wfOut( "... obsolete table \"archive2\" does not exist\n" );
1604
1605         foreach ( $newcols as $nc ) {
1606                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1607                 if ( !is_null( $fi ) ) {
1608                         wfOut( "... column \"$nc[0].$nc[1]\" already exists\n" );
1609                         continue;
1610                 }
1611
1612                 wfOut( "Adding column \"$nc[0].$nc[1]\"\n" );
1613                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1614         }
1615
1616         foreach ( $typechanges as $tc ) {
1617                 $fi = $wgDatabase->fieldInfo( $tc[0], $tc[1] );
1618                 if ( is_null( $fi ) ) {
1619                         wfOut( "... error: expected column $tc[0].$tc[1] to exist\n" );
1620                         exit( 1 );
1621                 }
1622
1623                 if ( $fi->type() === $tc[2] )
1624                         wfOut( "... column \"$tc[0].$tc[1]\" is already of type \"$tc[2]\"\n" );
1625                 else {
1626                         wfOut( "Changing column type of \"$tc[0].$tc[1]\" from \"{$fi->type()}\" to \"$tc[2]\"\n" );
1627                         $sql = "ALTER TABLE $tc[0] ALTER $tc[1] TYPE $tc[2]";
1628                         if ( strlen( $tc[3] ) ) {
1629                                 $default = array();
1630                                 if ( preg_match( '/DEFAULT (.+)/', $tc[3], $default ) ) {
1631                                         $sqldef = "ALTER TABLE $tc[0] ALTER $tc[1] SET DEFAULT $default[1]";
1632                                         $wgDatabase->query( $sqldef );
1633                                         $tc[3] = preg_replace( '/\s*DEFAULT .+/', '', $tc[3] );
1634                                 }
1635                                 $sql .= " USING $tc[3]";
1636                         }
1637                         $sql .= ";\nCOMMIT;\n";
1638                         $wgDatabase->query( $sql );
1639                 }
1640         }
1641
1642         foreach ( $nullchanges as $nc ) {
1643                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1644                 if ( is_null( $fi ) ) {
1645                         wfOut( "... error: expected column $nc[0].$nc[1] to exist\n" );
1646                         exit( 1 );
1647                 }
1648                 if ( $fi->nullable() ) {
1649                         # # It's NULL - does it need to be NOT NULL?
1650                         if ( 'NOT NULL' === $nc[2] ) {
1651                                 wfOut( "Changing \"$nc[0].$nc[1]\" to not allow NULLs\n" );
1652                                 $wgDatabase->query( "ALTER TABLE $nc[0] ALTER $nc[1] SET NOT NULL" );
1653                         } else {
1654                                 wfOut( "... column \"$nc[0].$nc[1]\" is already set as NULL\n" );
1655                         }
1656                 } else {
1657                         # # It's NOT NULL - does it need to be NULL?
1658                         if ( 'NULL' === $nc[2] ) {
1659                                 wfOut( "Changing \"$nc[0].$nc[1]\" to allow NULLs\n" );
1660                                 $wgDatabase->query( "ALTER TABLE $nc[0] ALTER $nc[1] DROP NOT NULL" );
1661                         }
1662                         else {
1663                                 wfOut( "... column \"$nc[0].$nc[1]\" is already set as NOT NULL\n" );
1664                         }
1665                 }
1666         }
1667
1668         if ( $wgDatabase->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) {
1669                 wfOut( "Changing \"oldimage.oi_deleted\" to type \"smallint\"\n" );
1670                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
1671                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
1672                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
1673         } else {
1674                 wfOut( "... column \"oldimage.oi_deleted\" is already of type \"smallint\"\n" );
1675         }
1676
1677         foreach ( $newindexes as $ni ) {
1678                 if ( pg_index_exists( $ni[0], $ni[1] ) ) {
1679                         wfOut( "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n" );
1680                         continue;
1681                 }
1682                 wfOut( "Creating index \"$ni[1]\" on table \"$ni[0]\" $ni[2]\n" );
1683                 $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
1684         }
1685
1686         foreach ( $newrules as $nr ) {
1687                 if ( $wgDatabase->ruleExists( $nr[0], $nr[1] ) ) {
1688                         wfOut( "... rule \"$nr[1]\" on table \"$nr[0]\" already exists\n" );
1689                         continue;
1690                 }
1691                 wfOut( "Adding rule \"$nr[1]\" to table \"$nr[0]\"\n" );
1692                 $wgDatabase->sourceFile( archive( $nr[2] ) );
1693         }
1694
1695         if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
1696                 wfOut( "... table \"oldimage\" has correct cascading delete/update foreign key to image\n" );
1697         } else {
1698                 if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey" ) ) {
1699                         $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
1700                 }
1701                 if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
1702                         $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
1703                 }
1704                 wfOut( "Making foreign key on table \"oldimage\" (to image) a cascade delete/update\n" );
1705                 $wgDatabase->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
1706                         "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" );
1707         }
1708
1709         if ( !$wgDatabase->triggerExists( "page", "page_deleted" ) ) {
1710                 wfOut( "Adding function and trigger \"page_deleted\" to table \"page\"\n" );
1711                 $wgDatabase->sourceFile( archive( 'patch-page_deleted.sql' ) );
1712         } else {
1713                 wfOut( "... table \"page\" has \"page_deleted\" trigger\n" );
1714         }
1715
1716         $fi = $wgDatabase->fieldInfo( "recentchanges", "rc_cur_id" );
1717         if ( !$fi->nullable() ) {
1718                 wfOut( "Removing NOT NULL constraint from \"recentchanges.rc_cur_id\"\n" );
1719                 $wgDatabase->sourceFile( archive( 'patch-rc_cur_id-not-null.sql' ) );
1720         } else {
1721                 wfOut( "... column \"recentchanges.rc_cur_id\" has a NOT NULL constraint\n" );
1722         }
1723
1724         $pu = pg_describe_index( "pagelink_unique" );
1725         if ( !is_null( $pu ) && ( $pu[0] != "pl_from" || $pu[1] != "pl_namespace" || $pu[2] != "pl_title" ) ) {
1726                 wfOut( "Dropping obsolete version of index \"pagelink_unique index\"\n" );
1727                 $wgDatabase->query( "DROP INDEX pagelink_unique" );
1728                 $pu = null;
1729         } else {
1730                 wfOut( "... obsolete version of index \"pagelink_unique index\" does not exist\n" );
1731         }
1732
1733         if ( is_null( $pu ) ) {
1734                 wfOut( "Creating index \"pagelink_unique index\"\n" );
1735                 $wgDatabase->query( "CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)" );
1736         } else {
1737                 wfOut( "... index \"pagelink_unique_index\" already exists\n" );
1738         }
1739
1740         if ( pg_fkey_deltype( "revision_rev_user_fkey" ) == 'r' ) {
1741                 wfOut( "... constraint \"revision_rev_user_fkey\" is ON DELETE RESTRICT\n" );
1742         } else {
1743                 wfOut( "Changing constraint \"revision_rev_user_fkey\" to ON DELETE RESTRICT\n" );
1744                 $wgDatabase->sourceFile( archive( 'patch-revision_rev_user_fkey.sql' ) );
1745         }
1746
1747         # Fix ipb_address index
1748         if ( pg_index_exists( 'ipblocks', 'ipb_address' ) ) {
1749                 wfOut( "Removing deprecated index 'ipb_address'...\n" );
1750                 $wgDatabase->query( 'DROP INDEX ipb_address' );
1751         }
1752         if ( pg_index_exists( 'ipblocks', 'ipb_address_unique' ) ) {
1753                 wfOut( "... have ipb_address_unique\n" );
1754         } else {
1755                 wfOut( "Adding ipb_address_unique index\n" );
1756                 $wgDatabase->sourceFile( archive( 'patch-ipb_address_unique.sql' ) );
1757         }
1758
1759         # Fix iwlinks index
1760         if ( pg_index_exists( 'iwlinks', 'iwl_prefix' ) ) {
1761                 wfOut( "Replacing index 'iwl_prefix' with 'iwl_prefix_from_title'...\n" );
1762                 $wgDatabase->sourceFile( archive( 'patch-rename-iwl_prefix.sql' ) );
1763         }
1764
1765         global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
1766         # Add missing extension tables
1767         foreach ( $wgExtNewTables as $nt ) {
1768                 if ( $wgDatabase->tableExists( $nt[0] ) ) {
1769                         wfOut( "... table \"$nt[0]\" already exists\n" );
1770                         continue;
1771                 }
1772                 wfOut( "Creating table \"$nt[0]\"\n" );
1773                 $wgDatabase->sourceFile( $nt[1] );
1774         }
1775         # Add missing extension fields
1776         foreach ( $wgExtPGNewFields as $nc ) {
1777                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1778                 if ( !is_null( $fi ) ) {
1779                         wfOut( "... column \"$nc[0].$nc[1]\" already exists\n" );
1780                         continue;
1781                 }
1782                 wfOut( "Adding column \"$nc[0].$nc[1]\"\n" );
1783                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1784         }
1785         # Change altered columns
1786         foreach ( $wgExtPGAlteredFields as $nc ) {
1787                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1788                 if ( is_null( $fi ) ) {
1789                         wfOut( "WARNING! Column \"$nc[0].$nc[1]\" does not exist but had an alter request! Please report this.\n" );
1790                         continue;
1791                 }
1792                 $oldtype = $fi->type();
1793                 $newtype = strtolower( $nc[2] );
1794                 if ( $oldtype === $newtype ) {
1795                         wfOut( "... column \"$nc[0].$nc[1]\" has correct type of \"$newtype\"\n" );
1796                         continue;
1797                 }
1798                 $command = "ALTER TABLE $nc[0] ALTER $nc[1] TYPE $nc[2]";
1799                 if ( isset( $nc[3] ) ) {
1800                         $command .= " USING $nc[3]";
1801                 }
1802                 wfOut( "Altering column \"$nc[0].$nc[1]\" from type \"$oldtype\" to \"$newtype\"\n" );
1803                 $wgDatabase->query( $command );
1804         }
1805         # Add missing extension indexes
1806         foreach ( $wgExtNewIndexes as $ni ) {
1807                 if ( pg_index_exists( $ni[0], $ni[1] ) ) {
1808                         wfOut( "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n" );
1809                         continue;
1810                 }
1811                 wfOut( "Creating index \"$ni[1]\" on table \"$ni[0]\"\n" );
1812                 if ( preg_match( '/^\(/', $ni[2] ) ) {
1813                         $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
1814                 }
1815                 else {
1816                         $wgDatabase->sourceFile( $ni[2] );
1817                 }
1818         }
1819
1820         foreach ( $deferredcols AS $dc ) {
1821                 $fi = $wgDatabase->fieldInfo( $dc[0], $dc[1] );
1822                 if ( is_null( $fi ) ) {
1823                         wfOut( "WARNING! Column \"$dc[0].$dc[1]\" does not exist but it should! Please report this.\n" );
1824                         continue;
1825                 }
1826                 if ( $fi->is_deferred() && $fi->is_deferrable() ) {
1827                         continue;
1828                 }
1829                 wfOut( "Altering column \"$dc[0].$dc[1]\" to be DEFERRABLE INITIALLY DEFERRED\n" );
1830                 $conname = $fi->conname();
1831                 $clause = $dc[2];
1832                 $command = "ALTER TABLE $dc[0] DROP CONSTRAINT $conname";
1833                 $wgDatabase->query( $command );
1834                 $command = "ALTER TABLE $dc[0] ADD CONSTRAINT $conname FOREIGN KEY ($dc[1]) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
1835                 $wgDatabase->query( $command );
1836         }
1837
1838         # Tweak the page_title tsearch2 trigger to filter out slashes
1839         # This is create or replace, so harmless to call if not needed
1840         $wgDatabase->sourceFile( archive( 'patch-ts2pagetitle.sql' ) );
1841
1842         # # If the server is 8.3 or higher, rewrite the tsearch2 triggers
1843         # # in case they have the old 'default' versions
1844         if ( $numver >= 8.3 ) {
1845                 $wgDatabase->sourceFile( archive( 'patch-tsearch2funcs.sql' ) );
1846         }
1847         return;
1848 }