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 require_once 'deleteDefaultMessages.php';
  15 # Extension updates
  16 require_once( "$IP/includes/Hooks.php" );
  17
  18 /**
  19  * List of update functions to call on a MySQL-based MediaWiki installation,
  20  * in sequence. First item is function name, rest are parameters to pass.
  21  */
  22 $wgMysqlUpdates = array(
  23         // 1.2
  24         // update_passwords obsolete
  25         array( 'add_field', 'ipblocks',      'ipb_id',           'patch-ipblocks.sql' ),
  26         array( 'add_field', 'ipblocks',      'ipb_expiry',       'patch-ipb_expiry.sql' ),
  27         array( 'do_interwiki_update' ),
  28         array( 'do_index_update' ),
  29         // do_linkscc_update obsolete
  30         array( 'add_table', 'hitcounter',                        'patch-hitcounter.sql' ),
  31         array( 'add_field', 'recentchanges', 'rc_type',          'patch-rc_type.sql' ),
  32
  33         // 1.3
  34         array( 'add_field', 'user',          'user_real_name',   'patch-user-realname.sql' ),
  35         array( 'add_table', 'querycache',                        'patch-querycache.sql' ),
  36         array( 'add_table', 'objectcache',                       'patch-objectcache.sql' ),
  37         array( 'add_table', 'categorylinks',                     'patch-categorylinks.sql' ),
  38         // do_linkscc_1_3_update obsolete
  39         array( 'do_old_links_update' ),
  40         array( 'add_field', 'recentchanges', 'rc_ip',            'patch-rc_ip.sql' ),
  41
  42         // 1.4
  43         array( 'do_image_name_unique_update' ),
  44         array( 'add_field', 'recentchanges', 'rc_id',            'patch-rc_id.sql' ),
  45         array( 'add_field', 'recentchanges', 'rc_patrolled',     'patch-rc-patrol.sql' ),
  46         array( 'add_table', 'logging',                           'patch-logging.sql' ),
  47         // do_user_rights_update obsolete
  48         array( 'add_field', 'user',          'user_token',       'patch-user_token.sql' ),
  49         // old, old_articleid, patch-remove-old-title-namespace.sql obsolete
  50         // user_groups, patch-userlevels.sql obsolete
  51         // do_group_update() obsolete
  52         array( 'do_watchlist_update' ),
  53         array( 'do_user_update' ),
  54         // do_copy_newtalk_to_watchlist obsolete
  55
  56         // 1.5
  57         array( 'do_schema_restructuring' ),
  58         array( 'add_field', 'logging',       'log_params',       'patch-log_params.sql' ),
  59         array( 'check_bin', 'logging',       'log_title',        'patch-logging-title.sql', ),
  60         array( 'add_field', 'archive',       'ar_rev_id',        'patch-archive-rev_id.sql' ),
  61         array( 'add_field', 'page',          'page_len',         'patch-page_len.sql' ),
  62         array( 'do_inverse_timestamp' ),
  63         array( 'do_text_id' ),
  64         array( 'add_field', 'revision',      'rev_deleted',      'patch-rev_deleted.sql' ),
  65         array( 'add_field', 'image',         'img_width',        'patch-img_width.sql' ),
  66         array( 'add_field', 'image',         'img_metadata',     'patch-img_metadata.sql' ),
  67         array( 'add_field', 'user',          'user_email_token', 'patch-user_email_token.sql' ),
  68         array( 'add_field', 'archive',       'ar_text_id',       'patch-archive-text_id.sql' ),
  69         array( 'do_namespace_size' ),
  70         array( 'add_field', 'image',         'img_media_type',   'patch-img_media_type.sql' ),
  71         array( 'do_pagelinks_update' ),
  72         array( 'do_drop_img_type' ),
  73         array( 'do_user_unique_update' ),
  74         array( 'do_user_groups_update' ),
  75         array( 'add_field', 'site_stats',    'ss_total_pages',   'patch-ss_total_articles.sql' ),
  76         array( 'add_table', 'user_newtalk',                      'patch-usernewtalk2.sql' ),
  77         array( 'add_table', 'transcache',                        'patch-transcache.sql' ),
  78         array( 'add_field', 'interwiki',     'iw_trans',         'patch-interwiki-trans.sql' ),
  79         array( 'add_table', 'trackbacks',                        'patch-trackbacks.sql' ),
  80
  81         // 1.6
  82         array( 'do_watchlist_null' ),
  83         // do_image_index_update obsolete
  84         array( 'do_logging_timestamp_index' ),
  85         array( 'add_field', 'ipblocks',        'ipb_range_start',  'patch-ipb_range_start.sql' ),
  86         array( 'do_page_random_update' ),
  87         array( 'add_field', 'user',            'user_registration','patch-user_registration.sql' ),
  88         array( 'do_templatelinks_update' ),
  89         array( 'add_table', 'externallinks',                       'patch-externallinks.sql' ),
  90         array( 'add_table', 'job',                                 'patch-job.sql' ),
  91         array( 'add_field', 'site_stats',      'ss_images',        'patch-ss_images.sql' ),
  92         array( 'add_table', 'langlinks',                           'patch-langlinks.sql' ),
  93         array( 'add_table', 'querycache_info',                     'patch-querycacheinfo.sql' ),
  94         array( 'add_table', 'filearchive',                         'patch-filearchive.sql' ),
  95         array( 'add_field', 'ipblocks',        'ipb_anon_only',    'patch-ipb_anon_only.sql' ),
  96         array( 'do_rc_indices_update' ),
  97
  98         // 1.9
  99         array( 'add_field', 'user',          'user_newpass_time', 'patch-user_newpass_time.sql' ),
 100         array( 'add_table', 'redirect',                           'patch-redirect.sql' ),
 101         array( 'add_table', 'querycachetwo', 'patch-querycachetwo.sql' ),
 102         array( 'add_field', 'ipblocks',      'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ),
 103         array( 'do_backlinking_indices_update' ),
 104         array( 'add_field', 'recentchanges', 'rc_old_len',        'patch-rc_len.sql' ),
 105         array( 'add_field', 'user',          'user_editcount',    'patch-user_editcount.sql' ),
 106
 107         // 1.10
 108         array( 'do_restrictions_update' ),
 109         array( 'add_field', 'logging',       'log_id',           'patch-log_id.sql' ),
 110         array( 'add_field', 'revision',      'rev_parent_id',    'patch-rev_parent_id.sql' ),
 111         array( 'add_field', 'page_restrictions', 'pr_id',        'patch-page_restrictions_sortkey.sql' ),
 112         array( 'add_field', 'revision',      'rev_len',          'patch-rev_len.sql' ),
 113         array( 'add_field', 'recentchanges', 'rc_deleted',       'patch-rc_deleted.sql' ),
 114         array( 'add_field', 'logging',       'log_deleted',      'patch-log_deleted.sql' ),
 115         array( 'add_field', 'archive',       'ar_deleted',       'patch-ar_deleted.sql' ),
 116         array( 'add_field', 'ipblocks',      'ipb_deleted',      'patch-ipb_deleted.sql' ),
 117         array( 'add_field', 'filearchive',   'fa_deleted',       'patch-fa_deleted.sql' ),
 118         array( 'add_field', 'archive',       'ar_len',           'patch-ar_len.sql' ),
 119
 120         // 1.11
 121         array( 'add_field', 'ipblocks',      'ipb_block_email',  'patch-ipb_emailban.sql' ),
 122         array( 'do_categorylinks_indices_update' ),
 123         array( 'add_field', 'oldimage',      'oi_metadata',      'patch-oi_metadata.sql'),
 124         array( 'do_archive_user_index' ),
 125         array( 'do_image_user_index' ),
 126         array( 'do_oldimage_user_index' ),
 127         array( 'add_field', 'archive',       'ar_page_id',       'patch-archive-page_id.sql'),
 128         array( 'add_field', 'image',         'img_sha1',         'patch-img_sha1.sql' ),
 129
 130         // 1.12
 131         array( 'add_table', 'protected_titles',                  'patch-protected_titles.sql' ),
 132
 133         // 1.13
 134         array( 'add_field', 'ipblocks',      'ipb_by_text',      'patch-ipb_by_text.sql' ),
 135         array( 'add_table', 'page_props',                        'patch-page_props.sql' ),
 136         array( 'add_table', 'updatelog',                         'patch-updatelog.sql' ),
 137         array( 'add_table', 'category',                          'patch-category.sql' ),
 138         array( 'do_category_population' ),
 139         array( 'add_field', 'archive',       'ar_parent_id',     'patch-ar_parent_id.sql'),
 140         array( 'add_field', 'user_newtalk',  'user_last_timestamp', 'patch-user_last_timestamp.sql'),
 141         array( 'do_populate_parent_id' ),
 142         array( 'check_bin', 'protected_titles', 'pt_title',      'patch-pt_title-encoding.sql', ),
 143         array( 'maybe_do_profiling_memory_update' ),
 144         array( 'do_filearchive_indices_update' ),
 145         array( 'update_password_format' ),
 146
 147         // 1.14
 148         array( 'add_field', 'site_stats',     'ss_active_users',  'patch-ss_active_users.sql' ),
 149         array( 'do_active_users_init' )
 150 );
 151
 152
 153 # For extensions only, should be populated via hooks
 154 # $wgDBtype should be checked to specifiy the proper file
 155 $wgExtNewTables = array(); // table, dir
 156 $wgExtNewFields = array(); // table, column, dir
 157 $wgExtPGNewFields = array(); // table, column attributes; for PostgreSQL
 158 $wgExtNewIndexes = array(); // table, index, dir
 159
 160 # Helper function: check if the given key is present in the updatelog table.
 161 # Obviously, only use this for updates that occur after the updatelog table was
 162 # created!
 163 function update_row_exists( $key ) {
 164         $dbr = wfGetDB( DB_SLAVE );
 165         $row = $dbr->selectRow(
 166                 'updatelog',
 167                 '1',
 168                 array( 'ul_key' => $key ),
 169                 __FUNCTION__
 170         );
 171         return (bool)$row;
 172 }
 173
 174 function rename_table( $from, $to, $patch ) {
 175         global $wgDatabase;
 176         if ( $wgDatabase->tableExists( $from ) ) {
 177                 if ( $wgDatabase->tableExists( $to ) ) {
 178                         echo "...can't move table $from to $to, $to already exists.\n";
 179                 } else {
 180                         echo "Moving table $from to $to...";
 181                         dbsource( archive($patch), $wgDatabase );
 182                         echo "ok\n";
 183                 }
 184         } else {
 185                 // Source table does not exist
 186                 // Renames are done before creations, so this is typical for a new installation
 187                 // Ignore silently
 188         }
 189 }
 190
 191 function add_table( $name, $patch, $fullpath=false ) {
 192         global $wgDatabase;
 193         if ( $wgDatabase->tableExists( $name ) ) {
 194                 echo "...$name table already exists.\n";
 195         } else {
 196                 echo "Creating $name table...";
 197                 if( $fullpath ) {
 198                         dbsource( $patch, $wgDatabase );
 199                 } else {
 200                         dbsource( archive($patch), $wgDatabase );
 201                 }
 202                 echo "ok\n";
 203         }
 204 }
 205
 206 function add_field( $table, $field, $patch, $fullpath=false ) {
 207         global $wgDatabase;
 208         if ( !$wgDatabase->tableExists( $table ) ) {
 209                 echo "...$table table does not exist, skipping new field patch\n";
 210         } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
 211                 echo "...have $field field in $table table.\n";
 212         } else {
 213                 echo "Adding $field field to table $table...";
 214                 if( $fullpath ) {
 215                         dbsource( $patch, $wgDatabase );
 216                 } else {
 217                         dbsource( archive($patch), $wgDatabase );
 218                 }
 219                 echo "ok\n";
 220         }
 221 }
 222
 223 function add_index( $table, $index, $patch, $fullpath=false ) {
 224         global $wgDatabase;
 225         if( $wgDatabase->indexExists( $table, $index ) ) {
 226                 echo "...$index key already set on $table table.\n";
 227         } else {
 228                 echo "Adding $index key to table $table... ";
 229                 if( $fullpath ) {
 230                         dbsource( $patch, $wgDatabase );
 231                 } else {
 232                         dbsource( archive($patch), $wgDatabase );
 233                 }
 234                 echo "ok\n";
 235         }
 236 }
 237
 238 function do_revision_updates() {
 239         global $wgSoftwareRevision;
 240         if ( $wgSoftwareRevision < 1001 ) {
 241                 update_passwords();
 242         }
 243 }
 244
 245 function update_passwords() {
 246         wfDebugDieBacktrace( "This function needs to be updated or removed.\n" );
 247
 248         global $wgDatabase;
 249         $fname = "Update script: update_passwords()";
 250         print "\nIt appears that you need to update the user passwords in your\n" .
 251           "database. If you have already done this (if you've run this update\n" .
 252           "script once before, for example), doing so again will make all your\n" .
 253           "user accounts inaccessible, so be sure you only do this once.\n" .
 254           "Update user passwords? (yes/no)";
 255
 256         $resp = readconsole();
 257     if ( ! ( "Y" == $resp{0} || "y" == $resp{0} ) ) { return; }
 258
 259         $sql = "SELECT user_id,user_password FROM user";
 260         $source = $wgDatabase->query( $sql, $fname );
 261
 262         while ( $row = $wgDatabase->fetchObject( $source ) ) {
 263                 $id = $row->user_id;
 264                 $oldpass = $row->user_password;
 265                 $newpass = md5( "{$id}-{$oldpass}" );
 266
 267                 $sql = "UPDATE user SET user_password='{$newpass}' " .
 268                   "WHERE user_id={$id}";
 269                 $wgDatabase->query( $sql, $fname );
 270         }
 271 }
 272
 273 function do_interwiki_update() {
 274         # Check that interwiki table exists; if it doesn't source it
 275         global $wgDatabase, $IP;
 276         if( $wgDatabase->tableExists( "interwiki" ) ) {
 277                 echo "...already have interwiki table\n";
 278                 return true;
 279         }
 280         echo "Creating interwiki table: ";
 281         dbsource( archive("patch-interwiki.sql") );
 282         echo "ok\n";
 283         echo "Adding default interwiki definitions: ";
 284         dbsource( "$IP/maintenance/interwiki.sql" );
 285         echo "ok\n";
 286 }
 287
 288 function do_index_update() {
 289         # Check that proper indexes are in place
 290         global $wgDatabase;
 291         $meta = $wgDatabase->fieldInfo( "recentchanges", "rc_timestamp" );
 292         if( !$meta->isMultipleKey() ) {
 293                 echo "Updating indexes to 20031107: ";
 294                 dbsource( archive("patch-indexes.sql") );
 295                 echo "ok\n";
 296                 return true;
 297         }
 298         echo "...indexes seem up to 20031107 standards\n";
 299         return false;
 300 }
 301
 302 function do_image_index_update() {
 303         global $wgDatabase;
 304
 305         $meta = $wgDatabase->fieldInfo( "image", "img_major_mime" );
 306         if( !$meta->isMultipleKey() ) {
 307                 echo "Updating indexes to 20050912: ";
 308                 dbsource( archive("patch-mimesearch-indexes.sql") );
 309                 echo "ok\n";
 310                 return true;
 311         }
 312         echo "...indexes seem up to 20050912 standards\n";
 313         return false;
 314 }
 315
 316 function do_image_name_unique_update() {
 317         global $wgDatabase;
 318         if( $wgDatabase->indexExists( 'image', 'PRIMARY' ) ) {
 319                 echo "...image primary key already set.\n";
 320         } else {
 321                 echo "Making img_name the primary key... ";
 322                 dbsource( archive("patch-image_name_primary.sql"), $wgDatabase );
 323                 echo "ok\n";
 324         }
 325 }
 326
 327 function do_logging_timestamp_index() {
 328         global $wgDatabase;
 329         if( $wgDatabase->indexExists( 'logging', 'times' ) ) {
 330                 echo "...timestamp key on logging already exists.\n";
 331         } else {
 332                 echo "Adding timestamp key on logging table... ";
 333                 dbsource( archive("patch-logging-times-index.sql"), $wgDatabase );
 334                 echo "ok\n";
 335         }
 336 }
 337
 338 function do_archive_user_index() {
 339         global $wgDatabase;
 340         if( $wgDatabase->indexExists( 'archive', 'usertext_timestamp' ) ) {
 341                 echo "...usertext,timestamp key on archive already exists.\n";
 342         } else {
 343                 echo "Adding usertext,timestamp key on archive table... ";
 344                 dbsource( archive("patch-archive-user-index.sql"), $wgDatabase );
 345                 echo "ok\n";
 346         }
 347 }
 348
 349 function do_image_user_index() {
 350         global $wgDatabase;
 351         if( $wgDatabase->indexExists( 'image', 'img_usertext_timestamp' ) ) {
 352                 echo "...usertext,timestamp key on image already exists.\n";
 353         } else {
 354                 echo "Adding usertext,timestamp key on image table... ";
 355                 dbsource( archive("patch-image-user-index.sql"), $wgDatabase );
 356                 echo "ok\n";
 357         }
 358 }
 359
 360 function do_oldimage_user_index() {
 361         global $wgDatabase;
 362         if( $wgDatabase->indexExists( 'oldimage', 'oi_usertext_timestamp' ) ) {
 363                 echo "...usertext,timestamp key on oldimage already exists.\n";
 364         } else {
 365                 echo "Adding usertext,timestamp key on oldimage table... ";
 366                 dbsource( archive("patch-oldimage-user-index.sql"), $wgDatabase );
 367                 echo "ok\n";
 368         }
 369 }
 370
 371 function do_watchlist_update() {
 372         global $wgDatabase;
 373         $fname = 'do_watchlist_update';
 374         if( $wgDatabase->fieldExists( 'watchlist', 'wl_notificationtimestamp' ) ) {
 375                 echo "The watchlist table is already set up for email notification.\n";
 376         } else {
 377                 echo "Adding wl_notificationtimestamp field for email notification management.";
 378                 /* ALTER TABLE watchlist ADD (wl_notificationtimestamp varchar(14) binary NOT NULL default '0'); */
 379                 dbsource( archive( 'patch-email-notification.sql' ), $wgDatabase );
 380                 echo "ok\n";
 381         }
 382         # Check if we need to add talk page rows to the watchlist
 383         $talk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', $fname );
 384         $nontalk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', $fname );
 385         if ( $talk != $nontalk ) {
 386                 echo "Adding missing watchlist talk page rows... ";
 387                 flush();
 388
 389                 $wgDatabase->insertSelect( 'watchlist', 'watchlist',
 390                         array(
 391                                 'wl_user' => 'wl_user',
 392                                 'wl_namespace' => 'wl_namespace | 1',
 393                                 'wl_title' => 'wl_title',
 394                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 395                         ), array( 'NOT (wl_namespace & 1)' ), $fname, 'IGNORE' );
 396                 echo "ok\n";
 397         } else {
 398                 echo "...watchlist talk page rows already present\n";
 399         }
 400 }
 401
 402 function do_copy_newtalk_to_watchlist() {
 403         global $wgDatabase;
 404         global $wgCommandLineMode;      # this needs to be saved while getID() and getName() are called
 405
 406         $res = $wgDatabase->safeQuery( 'SELECT user_id, user_ip FROM !',
 407                 $wgDatabase->tableName( 'user_newtalk' ) );
 408         $num_newtalks=$wgDatabase->numRows($res);
 409         echo "Now converting ".$num_newtalks." user_newtalk entries to watchlist table entries ... \n";
 410
 411         $user = new User();
 412         for ( $i = 1; $i <= $num_newtalks; $i++ ) {
 413                 $wluser = $wgDatabase->fetchObject( $res );
 414                 if ($wluser->user_id == 0) { # anonymous users ... have IP numbers as "names"
 415                         if ($user->isIP($wluser->user_ip)) { # do only if it really looks like an IP number (double checked)
 416                                 $wgDatabase->replace( 'watchlist',
 417                                         array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
 418                                           array('wl_user'                       => 0,
 419                                                 'wl_namespace'                  => NS_USER_TALK,
 420                                                 'wl_title'                      => $wluser->user_ip,
 421                                                 'wl_notificationtimestamp'      => '19700101000000'
 422                                                 ), 'updaters.inc::do_watchlist_update2'
 423                                         );
 424                         }
 425                 } else { # normal users ... have user_ids
 426                         $user->setID($wluser->user_id);
 427                         $wgDatabase->replace( 'watchlist',
 428                                 array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
 429                                   array('wl_user'                       => $user->getID(),
 430                                         'wl_namespace'                  => NS_USER_TALK,
 431                                         'wl_title'                      => $user->getName(),
 432                                         'wl_notificationtimestamp'      => '19700101000000'
 433                                         ), 'updaters.inc::do_watchlist_update3'
 434                                 );
 435                 }
 436         }
 437         echo "Done.\n";
 438 }
 439
 440
 441 function do_user_update() {
 442         global $wgDatabase;
 443         if( $wgDatabase->fieldExists( 'user', 'user_emailauthenticationtimestamp' ) ) {
 444                 echo "User table contains old email authentication field. Dropping... ";
 445                 dbsource( archive( 'patch-email-authentication.sql' ), $wgDatabase );
 446                 echo "ok\n";
 447         } else {
 448                 echo "...user table does not contain old email authentication field.\n";
 449         }
 450 }
 451
 452 /**
 453  * 1.4 betas were missing the 'binary' marker from logging.log_title,
 454  * which causes a collation mismatch error on joins in MySQL 4.1.
 455  */
 456 function check_bin( $table, $field, $patchFile ) {
 457         global $wgDatabase, $wgDBtype;
 458         if ($wgDBtype != 'mysql')
 459                 return;
 460         $tableName = $wgDatabase->tableName( $table );
 461         $res = $wgDatabase->query( "SELECT $field FROM $tableName LIMIT 0" );
 462         $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 463         $wgDatabase->freeResult( $res );
 464
 465         if( in_array( 'binary', $flags ) ) {
 466                 echo "$table table has correct $field encoding.\n";
 467         } else {
 468                 echo "Fixing $field encoding on $table table... ";
 469                 dbsource( archive( $patchFile ), $wgDatabase );
 470                 echo "ok\n";
 471         }
 472 }
 473
 474 function do_schema_restructuring() {
 475         global $wgDatabase;
 476         $fname="do_schema_restructuring";
 477         if ( $wgDatabase->tableExists( 'page' ) ) {
 478                 echo "...page table already exists.\n";
 479         } else {
 480                 echo "...converting from cur/old to page/revision/text DB structure.\n"; flush();
 481                 echo wfTimestamp( TS_DB );
 482                 echo "......checking for duplicate entries.\n"; flush();
 483
 484                 list ($cur, $old, $page, $revision, $text) = $wgDatabase->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 485
 486                 $rows = $wgDatabase->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 487                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", $fname );
 488
 489                 if ( $wgDatabase->numRows( $rows ) > 0 ) {
 490                         echo wfTimestamp( TS_DB );
 491                         echo "......<b>Found duplicate entries</b>\n";
 492                         echo ( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 493                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 494                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 495                                         $duplicate[$row->cur_namespace] = array();
 496                                 }
 497                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 498                                 echo ( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 499                         }
 500                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 501                         $firstCond = true;
 502                         foreach ( $duplicate as $ns => $titles ) {
 503                                 if ( $firstCond ) {
 504                                         $firstCond = false;
 505                                 } else {
 506                                         $sql .= ' OR ';
 507                                 }
 508                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 509                                 $first = true;
 510                                 foreach ( $titles as $t ) {
 511                                         if ( $first ) {
 512                                                 $sql .= $wgDatabase->addQuotes( $t );
 513                                                 $first = false;
 514                                         } else {
 515                                                 $sql .= ', ' . $wgDatabase->addQuotes( $t );
 516                                         }
 517                                 }
 518                                 $sql .= ") ) \n";
 519                         }
 520                         # By sorting descending, the most recent entry will be the first in the list.
 521                         # All following entries will be deleted by the next while-loop.
 522                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 523
 524                         $rows = $wgDatabase->query( $sql, $fname );
 525
 526                         $prev_title = $prev_namespace = false;
 527                         $deleteId = array();
 528
 529                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 530                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 531                                         $deleteId[] = $row->cur_id;
 532                                 }
 533                                 $prev_title     = $row->cur_title;
 534                                 $prev_namespace = $row->cur_namespace;
 535                         }
 536                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 537                         $rows = $wgDatabase->query( $sql, $fname );
 538                         echo wfTimestamp( TS_DB );
 539                         echo "......<b>Deleted</b> ".$wgDatabase->affectedRows()." records.\n";
 540                 }
 541
 542
 543                 echo wfTimestamp( TS_DB );
 544                 echo "......Creating tables.\n";
 545                 $wgDatabase->query("CREATE TABLE $page (
 546                         page_id int(8) unsigned NOT NULL auto_increment,
 547                         page_namespace int NOT NULL,
 548                         page_title varchar(255) binary NOT NULL,
 549                         page_restrictions tinyblob NOT NULL,
 550                         page_counter bigint(20) unsigned NOT NULL default '0',
 551                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 552                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 553                         page_random real unsigned NOT NULL,
 554                         page_touched char(14) binary NOT NULL default '',
 555                         page_latest int(8) unsigned NOT NULL,
 556                         page_len int(8) unsigned NOT NULL,
 557
 558                         PRIMARY KEY page_id (page_id),
 559                         UNIQUE INDEX name_title (page_namespace,page_title),
 560                         INDEX (page_random),
 561                         INDEX (page_len)
 562                         ) ENGINE=InnoDB", $fname );
 563                 $wgDatabase->query("CREATE TABLE $revision (
 564                         rev_id int(8) unsigned NOT NULL auto_increment,
 565                         rev_page int(8) unsigned NOT NULL,
 566                         rev_comment tinyblob NOT NULL,
 567                         rev_user int(5) unsigned NOT NULL default '0',
 568                         rev_user_text varchar(255) binary NOT NULL default '',
 569                         rev_timestamp char(14) binary NOT NULL default '',
 570                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 571                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 572                         rev_len int(8) unsigned,
 573                         rev_parent_id int(8) unsigned default NULL,
 574                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 575                         UNIQUE INDEX rev_id (rev_id),
 576                         INDEX rev_timestamp (rev_timestamp),
 577                         INDEX page_timestamp (rev_page,rev_timestamp),
 578                         INDEX user_timestamp (rev_user,rev_timestamp),
 579                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 580                         ) ENGINE=InnoDB", $fname );
 581
 582                 echo wfTimestamp( TS_DB );
 583                 echo "......Locking tables.\n";
 584                 $wgDatabase->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", $fname );
 585
 586                 $maxold = intval( $wgDatabase->selectField( 'old', 'max(old_id)', '', $fname ) );
 587                 echo wfTimestamp( TS_DB );
 588                 echo "......maxold is {$maxold}\n";
 589
 590                 echo wfTimestamp( TS_DB );
 591                 global $wgLegacySchemaConversion;
 592                 if( $wgLegacySchemaConversion ) {
 593                         // Create HistoryBlobCurStub entries.
 594                         // Text will be pulled from the leftover 'cur' table at runtime.
 595                         echo "......Moving metadata from cur; using blob references to text in cur table.\n";
 596                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 597                         $cur_flags = "'object'";
 598                 } else {
 599                         // Copy all cur text in immediately: this may take longer but avoids
 600                         // having to keep an extra table around.
 601                         echo "......Moving text from cur.\n";
 602                         $cur_text = 'cur_text';
 603                         $cur_flags = "''";
 604                 }
 605                 $wgDatabase->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 606                                 old_timestamp, old_minor_edit, old_flags)
 607                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 608                         FROM $cur", $fname );
 609
 610                 echo wfTimestamp( TS_DB );
 611                 echo "......Setting up revision table.\n";
 612                 $wgDatabase->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 613                                 rev_minor_edit)
 614                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 615                                 old_timestamp, old_minor_edit
 616                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", $fname );
 617
 618                 echo wfTimestamp( TS_DB );
 619                 echo "......Setting up page table.\n";
 620                 $wgDatabase->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 621                                 page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 622                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 623                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 624                         FROM $cur,$revision
 625                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", $fname );
 626
 627                 echo wfTimestamp( TS_DB );
 628                 echo "......Unlocking tables.\n";
 629                 $wgDatabase->query( "UNLOCK TABLES", $fname );
 630
 631                 echo wfTimestamp( TS_DB );
 632                 echo "......Renaming old.\n";
 633                 $wgDatabase->query( "ALTER TABLE $old RENAME TO $text", $fname );
 634
 635                 echo wfTimestamp( TS_DB );
 636                 echo "...done.\n";
 637         }
 638 }
 639
 640 function do_inverse_timestamp() {
 641         global $wgDatabase;
 642         if( $wgDatabase->fieldExists( 'revision', 'inverse_timestamp' ) ) {
 643                 echo "Removing revision.inverse_timestamp and fixing indexes... ";
 644                 dbsource( archive( 'patch-inverse_timestamp.sql' ), $wgDatabase );
 645                 echo "ok\n";
 646         } else {
 647                 echo "revision timestamp indexes already up to 2005-03-13\n";
 648         }
 649 }
 650
 651 function do_text_id() {
 652         global $wgDatabase;
 653         if( $wgDatabase->fieldExists( 'revision', 'rev_text_id' ) ) {
 654                 echo "...rev_text_id already in place.\n";
 655         } else {
 656                 echo "Adding rev_text_id field... ";
 657                 dbsource( archive( 'patch-rev_text_id.sql' ), $wgDatabase );
 658                 echo "ok\n";
 659         }
 660 }
 661
 662 function do_namespace_size() {
 663         $tables = array(
 664                 'page'          => 'page',
 665                 'archive'       => 'ar',
 666                 'recentchanges' => 'rc',
 667                 'watchlist'     => 'wl',
 668                 'querycache'    => 'qc',
 669                 'logging'       => 'log',
 670         );
 671         foreach( $tables as $table => $prefix ) {
 672                 do_namespace_size_on( $table, $prefix );
 673                 flush();
 674         }
 675 }
 676
 677 function do_namespace_size_on( $table, $prefix ) {
 678         global $wgDatabase, $wgDBtype;
 679         if ($wgDBtype != 'mysql')
 680                 return;
 681         $field = $prefix . '_namespace';
 682
 683         $tablename = $wgDatabase->tableName( $table );
 684         $result = $wgDatabase->query( "SHOW COLUMNS FROM $tablename LIKE '$field'" );
 685         $info = $wgDatabase->fetchObject( $result );
 686         $wgDatabase->freeResult( $result );
 687
 688         if( substr( $info->Type, 0, 3 ) == 'int' ) {
 689                 echo "...$field is already a full int ($info->Type).\n";
 690         } else {
 691                 echo "Promoting $field from $info->Type to int... ";
 692
 693                 $sql = "ALTER TABLE $tablename MODIFY $field int NOT NULL";
 694                 $wgDatabase->query( $sql );
 695
 696                 echo "ok\n";
 697         }
 698 }
 699
 700 function do_pagelinks_update() {
 701         global $wgDatabase;
 702         if( $wgDatabase->tableExists( 'pagelinks' ) ) {
 703                 echo "...already have pagelinks table.\n";
 704         } else {
 705                 echo "Converting links and brokenlinks tables to pagelinks... ";
 706                 dbsource( archive( 'patch-pagelinks.sql' ), $wgDatabase );
 707                 echo "ok\n";
 708                 flush();
 709
 710                 global $wgCanonicalNamespaceNames;
 711                 foreach( $wgCanonicalNamespaceNames as $ns => $name ) {
 712                         if( $ns != 0 ) {
 713                                 do_pagelinks_namespace( $ns );
 714                         }
 715                 }
 716         }
 717 }
 718
 719 function do_pagelinks_namespace( $namespace ) {
 720         global $wgDatabase, $wgContLang;
 721
 722         $ns = intval( $namespace );
 723         echo "Cleaning up broken links for namespace $ns... ";
 724
 725         $pagelinks = $wgDatabase->tableName( 'pagelinks' );
 726         $name = $wgContLang->getNsText( $ns );
 727         $prefix = $wgDatabase->strencode( $name );
 728         $likeprefix = str_replace( '_', '\\_', $prefix);
 729
 730         $sql = "UPDATE $pagelinks
 731                    SET pl_namespace=$ns,
 732                        pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 733                  WHERE pl_namespace=0
 734                    AND pl_title LIKE '$likeprefix:%'";
 735
 736         $wgDatabase->query( $sql, 'do_pagelinks_namespace' );
 737         echo "ok\n";
 738 }
 739
 740 function do_drop_img_type() {
 741         global $wgDatabase;
 742
 743         if( $wgDatabase->fieldExists( 'image', 'img_type' ) ) {
 744                 echo "Dropping unused img_type field in image table... ";
 745                 dbsource( archive( 'patch-drop_img_type.sql' ), $wgDatabase );
 746                 echo "ok\n";
 747         } else {
 748                 echo "No img_type field in image table; Good.\n";
 749         }
 750 }
 751
 752 function do_old_links_update() {
 753         global $wgDatabase;
 754         if( $wgDatabase->tableExists( 'pagelinks' ) ) {
 755                 echo "Already have pagelinks; skipping old links table updates.\n";
 756         } else {
 757                 convertLinks(); flush();
 758         }
 759 }
 760
 761 function do_user_unique_update() {
 762         global $wgDatabase;
 763         $duper = new UserDupes( $wgDatabase );
 764         if( $duper->hasUniqueIndex() ) {
 765                 echo "Already have unique user_name index.\n";
 766         } else {
 767                 if( !$duper->clearDupes() ) {
 768                         echo "WARNING: This next step will probably fail due to unfixed duplicates...\n";
 769                 }
 770                 echo "Adding unique index on user_name... ";
 771                 dbsource( archive( 'patch-user_nameindex.sql' ), $wgDatabase );
 772                 echo "ok\n";
 773         }
 774 }
 775
 776 function do_user_groups_update() {
 777         $fname = 'do_user_groups_update';
 778         global $wgDatabase;
 779
 780         if( $wgDatabase->tableExists( 'user_groups' ) ) {
 781                 echo "...user_groups table already exists.\n";
 782                 return do_user_groups_reformat();
 783         }
 784
 785         echo "Adding user_groups table... ";
 786         dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
 787         echo "ok\n";
 788
 789         if( !$wgDatabase->tableExists( 'user_rights' ) ) {
 790                 if( $wgDatabase->fieldExists( 'user', 'user_rights' ) ) {
 791                         echo "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion...";
 792                         dbsource( archive( 'patch-user_rights.sql' ), $wgDatabase );
 793                         echo "ok\n";
 794                 } else {
 795                         echo "*** WARNING: couldn't locate user_rights table or field for upgrade.\n";
 796                         echo "*** You may need to manually configure some sysops by manipulating\n";
 797                         echo "*** the user_groups table.\n";
 798                         return;
 799                 }
 800         }
 801
 802         echo "Converting user_rights table to user_groups... ";
 803         $result = $wgDatabase->select( 'user_rights',
 804                 array( 'ur_user', 'ur_rights' ),
 805                 array( "ur_rights != ''" ),
 806                 $fname );
 807
 808         while( $row = $wgDatabase->fetchObject( $result ) ) {
 809                 $groups = array_unique(
 810                         array_map( 'trim',
 811                                 explode( ',', $row->ur_rights ) ) );
 812
 813                 foreach( $groups as $group ) {
 814                         $wgDatabase->insert( 'user_groups',
 815                                 array(
 816                                         'ug_user'  => $row->ur_user,
 817                                         'ug_group' => $group ),
 818                                 $fname );
 819                 }
 820         }
 821         $wgDatabase->freeResult( $result );
 822         echo "ok\n";
 823 }
 824
 825 function do_user_groups_reformat() {
 826         # Check for bogus formats from previous 1.5 alpha code.
 827         global $wgDatabase;
 828         $info = $wgDatabase->fieldInfo( 'user_groups', 'ug_group' );
 829
 830         if( $info->type() == 'int' ) {
 831                 $oldug = $wgDatabase->tableName( 'user_groups' );
 832                 $newug = $wgDatabase->tableName( 'user_groups_bogus' );
 833                 echo "user_groups is in bogus intermediate format. Renaming to $newug... ";
 834                 $wgDatabase->query( "ALTER TABLE $oldug RENAME TO $newug" );
 835                 echo "ok\n";
 836
 837                 echo "Re-adding fresh user_groups table... ";
 838                 dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
 839                 echo "ok\n";
 840
 841                 echo "***\n";
 842                 echo "*** WARNING: You will need to manually fix up user permissions in the user_groups\n";
 843                 echo "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n";
 844                 echo "***\n";
 845         } else {
 846                 echo "...user_groups is in current format.\n";
 847         }
 848
 849 }
 850
 851 function do_watchlist_null() {
 852         # Make sure wl_notificationtimestamp can be NULL,
 853         # and update old broken items.
 854         global $wgDatabase;
 855         $info = $wgDatabase->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 856
 857         if( !$info->nullable() ) {
 858                 echo "Making wl_notificationtimestamp nullable... ";
 859                 dbsource( archive( 'patch-watchlist-null.sql' ), $wgDatabase );
 860                 echo "ok\n";
 861         } else {
 862                 echo "...wl_notificationtimestamp is already nullable.\n";
 863         }
 864
 865 }
 866
 867 /**
 868  * @bug 3946
 869  */
 870 function do_page_random_update() {
 871         global $wgDatabase;
 872
 873         echo "Setting page_random to a random value on rows where it equals 0...";
 874
 875         $page = $wgDatabase->tableName( 'page' );
 876         $wgDatabase->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", 'do_page_random_update' );
 877         $rows = $wgDatabase->affectedRows();
 878
 879         echo "changed $rows rows\n";
 880 }
 881
 882 function do_templatelinks_update() {
 883         global $wgDatabase, $wgLoadBalancer;
 884         $fname = 'do_templatelinks_update';
 885
 886         if ( $wgDatabase->tableExists( 'templatelinks' ) ) {
 887                 echo "...templatelinks table already exists\n";
 888                 return;
 889         }
 890         echo "Creating templatelinks table...\n";
 891         dbsource( archive('patch-templatelinks.sql'), $wgDatabase );
 892         echo "Populating...\n";
 893         if ( isset( $wgLoadBalancer ) && $wgLoadBalancer->getServerCount() > 1 ) {
 894                 // Slow, replication-friendly update
 895                 $res = $wgDatabase->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 896                         array( 'pl_namespace' => NS_TEMPLATE ), $fname );
 897                 $count = 0;
 898                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
 899                         $count = ($count + 1) % 100;
 900                         if ( $count == 0 ) {
 901                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
 902                                         wfWaitForSlaves( 10 );
 903                                 } else {
 904                                         sleep( 1 );
 905                                 }
 906                         }
 907                         $wgDatabase->insert( 'templatelinks',
 908                                 array(
 909                                         'tl_from' => $row->pl_from,
 910                                         'tl_namespace' => $row->pl_namespace,
 911                                         'tl_title' => $row->pl_title,
 912                                 ), $fname
 913                         );
 914
 915                 }
 916                 $wgDatabase->freeResult( $res );
 917         } else {
 918                 // Fast update
 919                 $wgDatabase->insertSelect( 'templatelinks', 'pagelinks',
 920                         array(
 921                                 'tl_from' => 'pl_from',
 922                                 'tl_namespace' => 'pl_namespace',
 923                                 'tl_title' => 'pl_title'
 924                         ), array(
 925                                 'pl_namespace' => 10
 926                         ), $fname
 927                 );
 928         }
 929         echo "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n";
 930 }
 931
 932 // Add index on ( rc_namespace, rc_user_text ) [Jul. 2006]
 933 // Add index on ( rc_user_text, rc_timestamp ) [Nov. 2006]
 934 function do_rc_indices_update() {
 935         global $wgDatabase;
 936         echo( "Checking for additional recent changes indices...\n" );
 937
 938         $indexes = array(
 939                 'rc_ns_usertext' => 'patch-recentchanges-utindex.sql',
 940                 'rc_user_text' => 'patch-rc_user_text-index.sql',
 941         );
 942
 943         foreach( $indexes as $index => $patch ) {
 944                 $info = $wgDatabase->indexInfo( 'recentchanges', $index, __METHOD__ );
 945                 if( !$info ) {
 946                         echo( "...index `{$index}` not found; adding..." );
 947                         dbsource( archive( $patch ) );
 948                         echo( "done.\n" );
 949                 } else {
 950                         echo( "...index `{$index}` seems ok.\n" );
 951                 }
 952         }
 953 }
 954
 955 function index_has_field($table, $index, $field) {
 956         global $wgDatabase;
 957         echo( "Checking if $table index $index includes field $field...\n" );
 958         $info = $wgDatabase->indexInfo( $table, $index, __METHOD__ );
 959         if( $info ) {
 960                 foreach($info as $row) {
 961                         if($row->Column_name == $field) {
 962                                 echo( "...index $index on table $table seems to be ok\n" );
 963                                 return true;
 964                         }
 965                 }
 966         }
 967         echo( "...index $index on table $table has no field $field; adding\n" );
 968         return false;
 969 }
 970
 971 function do_backlinking_indices_update() {
 972         echo( "Checking for backlinking indices...\n" );
 973         if (!index_has_field('pagelinks', 'pl_namespace', 'pl_from') ||
 974                 !index_has_field('templatelinks', 'tl_namespace', 'tl_from') ||
 975                 !index_has_field('imagelinks', 'il_to', 'il_from'))
 976         {
 977                 dbsource( archive( 'patch-backlinkindexes.sql' ) );
 978                 echo( "...backlinking indices updated\n" );
 979         }
 980 }
 981
 982 function do_categorylinks_indices_update() {
 983         echo( "Checking for categorylinks indices...\n" );
 984         if (!index_has_field('categorylinks', 'cl_sortkey', 'cl_from'))
 985         {
 986                 dbsource( archive( 'patch-categorylinksindex.sql' ) );
 987                 echo( "...categorylinks indices updated\n" );
 988         }
 989 }
 990
 991 function do_filearchive_indices_update() {
 992         global $wgDatabase;
 993         echo( "Checking filearchive indices...\n" );
 994         $info = $wgDatabase->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 995         if ( !$info )
 996         {
 997                 dbsource( archive( 'patch-filearhive-user-index.sql' ) );
 998                 echo( "...filearchive indices updated\n" );
 999         }
1000 }
1001
1002 function maybe_do_profiling_memory_update() {
1003         global $wgDatabase;
1004         if ( !$wgDatabase->tableExists( 'profiling' ) ) {
1005                 // Simply ignore
1006         } elseif ( $wgDatabase->fieldExists( 'profiling', 'pf_memory' ) ) {
1007                 echo "profiling table has pf_memory field.\n";
1008         } else {
1009                 echo "Adding pf_memory field to table profiling...";
1010                 dbsource( archive( 'patch-profiling-memory.sql' ), $wgDatabase );
1011                 echo "ok\n";
1012         }
1013 }
1014
1015 function do_stats_init() {
1016         // Sometimes site_stats table is not properly populated.
1017         global $wgDatabase;
1018         echo "Checking site_stats row...";
1019         $row = $wgDatabase->selectRow( 'site_stats', '*', array( 'ss_row_id' => 1 ), __METHOD__ );
1020         if( $row === false ) {
1021                 echo "data is missing! rebuilding...\n";
1022
1023                 global $IP;
1024                 require_once "$IP/maintenance/initStats.inc";
1025                 wfInitStats();
1026         } else {
1027                 echo "ok.\n";
1028         }
1029 }
1030
1031 function do_active_users_init() {
1032         global $wgDatabase;
1033         $activeUsers = $wgDatabase->selectField( 'site_stats', 'ss_active_users', false, __METHOD__ );
1034         if( $activeUsers == -1 ) {
1035                 $activeUsers = $wgDatabase->selectField( 'recentchanges',
1036                         'COUNT( DISTINCT rc_user_text )',
1037                         array( 'rc_user != 0', 'rc_bot' => 0, "rc_log_type != 'newusers'" ), __METHOD__
1038                 );
1039                 $wgDatabase->update( 'site_stats',
1040                         array( 'ss_active_users' => intval($activeUsers) ),
1041                         array( 'ss_row_id' => 1 ), __METHOD__, array( 'LIMIT' => 1 )
1042                 );
1043         }
1044         echo( "...ss_active_users user count set...\n" );
1045 }
1046
1047 function purge_cache() {
1048         global $wgDatabase;
1049         # We can't guarantee that the user will be able to use TRUNCATE,
1050         # but we know that DELETE is available to us
1051         echo( "Purging caches..." );
1052         $wgDatabase->delete( 'objectcache', '*', __METHOD__ );
1053         echo( "done.\n" );
1054 }
1055
1056 function do_all_updates( $shared = false, $purge = true ) {
1057         global $wgNewTables, $wgNewFields, $wgRenamedTables, $wgSharedDB, $wgSharedTables, $wgDatabase, $wgDBtype, $IP;
1058
1059         wfRunHooks('LoadExtensionSchemaUpdates');
1060
1061         $doUser = $shared ? $wgSharedDB && in_array('user', $wgSharedTables) : !$wgSharedDB || !in_array('user', $wgSharedTables);
1062
1063         if ($wgDBtype === 'postgres') {
1064                 do_postgres_updates();
1065                 return;
1066         }
1067
1068         # Run core updates in sequence...
1069         global $wgMysqlUpdates;
1070         foreach( $wgMysqlUpdates as $params ) {
1071                 $func = array_shift( $params );
1072                 call_user_func_array( $func, $params );
1073                 flush();
1074         }
1075
1076         /// @fixme clean up this mess too!
1077         global $wgExtNewTables, $wgExtNewFields, $wgExtNewIndexes;
1078         # Add missing extension tables
1079         foreach ( $wgExtNewTables as $tableRecord ) {
1080                 add_table( $tableRecord[0], $tableRecord[1], true );
1081                 flush();
1082         }
1083         # Add missing extension fields
1084         foreach ( $wgExtNewFields as $fieldRecord ) {
1085                 if ( $fieldRecord[0] != 'user' || $doUser ) {
1086                         add_field( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1087                 }
1088                 flush();
1089         }
1090         # Add missing extension indexes
1091         foreach ( $wgExtNewIndexes as $fieldRecord ) {
1092                 add_index( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1093                 flush();
1094         }
1095
1096
1097         echo "Deleting old default messages (this may take a long time!)..."; flush();
1098         deleteDefaultMessages();
1099         echo "Done\n"; flush();
1100
1101         do_stats_init(); flush();
1102
1103         if( $purge ) {
1104                 purge_cache();
1105                 flush();
1106         }
1107 }
1108
1109 function archive($name) {
1110         global $wgDBtype, $IP;
1111         switch ($wgDBtype) {
1112         case "postgres":
1113                 return "$IP/maintenance/postgres/archives/$name";
1114         default:
1115                 return "$IP/maintenance/archives/$name";
1116         }
1117 }
1118
1119 function do_restrictions_update() {
1120         # Adding page_restrictions table, obsoleting page.page_restrictions.
1121         #  Migrating old restrictions to new table
1122         # -- Andrew Garrett, January 2007.
1123
1124         global $wgDatabase;
1125
1126         $name = 'page_restrictions';
1127         $patch = 'patch-page_restrictions.sql';
1128         $patch2 = 'patch-page_restrictions_sortkey.sql';
1129
1130         if ( $wgDatabase->tableExists( $name ) ) {
1131                 echo "...$name table already exists.\n";
1132         } else {
1133                 echo "Creating $name table...";
1134                 dbsource( archive($patch), $wgDatabase );
1135                 dbsource( archive($patch2), $wgDatabase );
1136                 echo "ok\n";
1137
1138                 echo "Migrating old restrictions to new table...";
1139
1140                 $res = $wgDatabase->select( 'page', array( 'page_id', 'page_restrictions' ), array("page_restrictions!=''", "page_restrictions!='edit=:move='"), __METHOD__ );
1141
1142                 $count = 0;
1143
1144                 while ($row = $wgDatabase->fetchObject($res) ) {
1145                         $count = ($count + 1) % 100;
1146
1147                         if ($count == 0) {
1148                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
1149                                         wfWaitForSlaves( 10 );
1150                                 } else {
1151                                         sleep( 1 );
1152                                 }
1153                         }
1154
1155                         # Figure out what the restrictions are..
1156                         $id = $row->page_id;
1157                         $flatrestrictions = explode( ':', $row->page_restrictions );
1158
1159                         $restrictions = array ();
1160                         foreach( $flatrestrictions as $restriction ) {
1161                                 $thisrestriction = explode( '=', $restriction, 2 );
1162                                 if( count( $thisrestriction ) == 1 ) {
1163                                         // Compatibility with old protections from before
1164                                         // separate move protection was added.
1165                                         list( $level ) = $thisrestriction;
1166                                         if( $level ) {
1167                                                 $restrictions['edit'] = $level;
1168                                                 $restrictions['move'] = $level;
1169                                         }
1170                                 } else {
1171                                         list( $type, $level ) = $thisrestriction;
1172                                         if( $level ) {
1173                                                 $restrictions[$type] = $level;
1174                                         }
1175                                 }
1176
1177                         $wgDatabase->update( 'page', array ( 'page_restrictions' => ''), array( 'page_id' => $id ), __METHOD__ );
1178
1179                         }
1180
1181                         foreach( $restrictions as $type => $level ) {
1182                                 $wgDatabase->insert( 'page_restrictions', array ( 'pr_page' => $id,
1183                                                                                         'pr_type' => $type,
1184                                                                                         'pr_level' => $level,
1185                                                                                         'pr_cascade' => 0,
1186                                                                                         'pr_expiry' => 'infinity' ),
1187                                                                                         __METHOD__ );
1188                         }
1189                 }
1190                 print "ok\n";
1191         }
1192 }
1193
1194 function do_category_population() {
1195         if( update_row_exists( 'populate category' ) ) {
1196                 echo "...category table already populated.\n";
1197                 return;
1198         }
1199         require_once( 'populateCategory.inc' );
1200         echo "Populating category table, printing progress markers.  ".
1201 "For large databases, you\n".
1202 "may want to hit Ctrl-C and do this manually with maintenance/\n".
1203 "populateCategory.php.\n";
1204         populateCategory( '', 10, 0, true );
1205         echo "Done populating category table.\n";
1206 }
1207
1208 function do_populate_parent_id() {
1209         if( update_row_exists( 'populate rev_parent_id' ) ) {
1210                 echo "...rev_parent_id column already populated.\n";
1211                 return;
1212         }
1213         require_once( 'populateParentId.inc' );
1214
1215         global $wgDatabase;
1216         populate_rev_parent_id( $wgDatabase );
1217 }
1218
1219 function update_password_format() {
1220         if ( update_row_exists( 'password format' ) ) {
1221                 echo "...password hash format already changed\n";
1222                 return;
1223         }
1224
1225         echo "Updating password hash format...";
1226
1227         global $wgDatabase, $wgPasswordSalt;
1228         $user = $wgDatabase->tableName( 'user' );
1229         if ( $wgPasswordSalt ) {
1230                 $sql = "UPDATE $user SET user_password=CONCAT(':B:', user_id, ':', user_password) " .
1231                         "WHERE user_password NOT LIKE ':%'";
1232         } else {
1233                 $sql = "UPDATE $user SET user_password=CONCAT(':A:', user_password) " .
1234                         "WHERE user_password NOT LIKE ':%'";
1235         }
1236         $wgDatabase->query( $sql, __METHOD__ );
1237         $wgDatabase->insert( 'updatelog', array( 'ul_key' => 'password format' ), __METHOD__ );
1238
1239         echo "done\n";
1240 }
1241
1242 function
1243 pg_describe_table($table)
1244 {
1245 global  $wgDatabase, $wgDBmwschema;
1246         $q = <<<END
1247 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
1248         WHERE pg_class.relnamespace = pg_namespace.oid
1249           AND attrelid=pg_class.oid AND attnum > 0
1250           AND relname=%s AND nspname=%s
1251 END;
1252         $res = $wgDatabase->query(sprintf($q,
1253                         $wgDatabase->addQuotes($table),
1254                         $wgDatabase->addQuotes($wgDBmwschema)));
1255         if (!$res)
1256                 return null;
1257
1258         $cols = array();
1259         while ($r = $wgDatabase->fetchRow($res)) {
1260                 $cols[] = array(
1261                                 "name" => $r[0],
1262                                 "ord" => $r[1],
1263                         );
1264         }
1265         return $cols;
1266 }
1267
1268 function
1269 pg_describe_index($idx)
1270 {
1271 global  $wgDatabase, $wgDBmwschema;
1272
1273         // first fetch the key (which is a list of columns ords) and
1274         // the table the index applies to (an oid)
1275         $q = <<<END
1276 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
1277         WHERE nspname=%s
1278           AND pg_class.relnamespace = pg_namespace.oid
1279           AND relname=%s
1280           AND indexrelid=pg_class.oid
1281 END;
1282         $res = $wgDatabase->query(sprintf($q,
1283                         $wgDatabase->addQuotes($wgDBmwschema),
1284                         $wgDatabase->addQuotes($idx)));
1285         if (!$res)
1286                 return null;
1287         if (!($r = $wgDatabase->fetchRow($res))) {
1288                 $wgDatabase->freeResult($res);
1289                 return null;
1290         }
1291
1292         $indkey = $r[0];
1293         $relid = intval($r[1]);
1294         $indkeys = explode(" ", $indkey);
1295         $wgDatabase->freeResult($res);
1296
1297         $colnames = array();
1298         foreach ($indkeys as $rid) {
1299                 $query = <<<END
1300 SELECT attname FROM pg_class, pg_attribute
1301         WHERE attrelid=$relid
1302           AND attnum=%d
1303           AND attrelid=pg_class.oid
1304 END;
1305                 $r2 = $wgDatabase->query(sprintf($query, $rid));
1306                 if (!$r2)
1307                         return null;
1308                 if (!($row2 = $wgDatabase->fetchRow($r2))) {
1309                         $wgDatabase->freeResult($r2);
1310                         return null;
1311                 }
1312                 $colnames[] = $row2[0];
1313                 $wgDatabase->freeResult($r2);
1314         }
1315
1316         return $colnames;
1317 }
1318
1319 function
1320 pg_index_exists($table, $index)
1321 {
1322 global  $wgDatabase, $wgDBmwschema;
1323         $exists = $wgDatabase->selectField("pg_indexes", "indexname",
1324                         array(  "indexname" => $index,
1325                                 "tablename" => $table,
1326                                 "schemaname" => $wgDBmwschema));
1327         return $exists === $index;
1328 }
1329
1330 function
1331 pg_fkey_deltype($fkey)
1332 {
1333 global  $wgDatabase, $wgDBmwschema;
1334         $q = <<<END
1335 SELECT confdeltype FROM pg_constraint, pg_namespace
1336         WHERE connamespace=pg_namespace.oid
1337           AND nspname=%s
1338           AND conname=%s;
1339 END;
1340         $r = $wgDatabase->query(sprintf($q,
1341                 $wgDatabase->addQuotes($wgDBmwschema),
1342                 $wgDatabase->addQuotes($fkey)));
1343         if (!($row = $wgDatabase->fetchRow($r)))
1344                 return null;
1345         return $row[0];
1346 }
1347
1348 function
1349 pg_rule_def($table, $rule)
1350 {
1351 global  $wgDatabase, $wgDBmwschema;
1352         $q = <<<END
1353 SELECT definition FROM pg_rules
1354         WHERE schemaname = %s
1355           AND tablename = %s
1356           AND rulename = %s
1357 END;
1358         $r = $wgDatabase->query(sprintf($q,
1359                         $wgDatabase->addQuotes($wgDBmwschema),
1360                         $wgDatabase->addQuotes($table),
1361                         $wgDatabase->addQuotes($rule)));
1362         $row = $wgDatabase->fetchRow($r);
1363         if (!$row)
1364                 return null;
1365         $d = $row[0];
1366         $wgDatabase->freeResult($r);
1367         return $d;
1368 }
1369
1370 function do_postgres_updates() {
1371         global $wgDatabase, $wgVersion, $wgDBmwschema, $wgDBts2schema, $wgShowExceptionDetails, $wgDBuser;
1372
1373         ## Gather version numbers in case we need them
1374         $version = $wgDatabase->getServerVersion(); ## long string
1375         $numver = $wgDatabase->numeric_version; ## X.Y e.g. 8.3
1376
1377         $wgShowExceptionDetails = 1;
1378
1379         # Just in case their LocalSettings.php does not have this:
1380         if ( !isset( $wgDBmwschema ))
1381                 $wgDBmwschema = 'mediawiki';
1382
1383         # Verify that this user is configured correctly
1384         $safeuser = $wgDatabase->addQuotes($wgDBuser);
1385         $SQL = "SELECT array_to_string(useconfig,'*') FROM pg_catalog.pg_user WHERE usename = $safeuser";
1386         $config = pg_fetch_result( $wgDatabase->doQuery( $SQL ), 0, 0 );
1387         $conf = array();
1388         foreach( explode( '*', $config ) as $c ) {
1389                 list( $x,$y ) = explode( '=', $c );
1390                 $conf[$x] = $y;
1391         }
1392         if( !array_key_exists( 'search_path', $conf ) ) {
1393                 $search_path = '';
1394         }
1395         else {
1396                 $search_path = $conf['search_path'];
1397         }
1398         if( strpos( $search_path, $wgDBmwschema ) === false ) {
1399                 echo "Adding in schema \"$wgDBmwschema\" to search_path for user \"$wgDBuser\"\n";
1400                 $search_path = "$wgDBmwschema, $search_path";
1401         }
1402         if( strpos( $search_path, $wgDBts2schema ) === false ) {
1403                 echo "Adding in schema \"$wgDBts2schema\" to search_path for user \"$wgDBuser\"\n";
1404                 $search_path = "$search_path, $wgDBts2schema";
1405         }
1406         if( array_key_exists( 'search_path', $conf ) === false || $search_path != $conf['search_path'] ) {
1407                 $wgDatabase->doQuery( "ALTER USER $wgDBuser SET search_path = $search_path" );
1408                 $wgDatabase->doQuery( "SET search_path = $search_path" );
1409         }
1410         else {
1411                 $path = $conf['search_path'];
1412                 echo "... search_path for user \"$wgDBuser\" looks correct ($path)\n";
1413         }
1414         $goodconf = array(
1415                 'client_min_messages' => 'error',
1416                 'DateStyle'           => 'ISO, YMD',
1417                 'TimeZone'            => 'GMT'
1418         );
1419         foreach( array_keys( $goodconf ) AS $key ) {
1420                 $value = $goodconf[$key];
1421                 if( !array_key_exists( $key, $conf ) or $conf[$key] !== $value ) {
1422                         echo "Setting $key to '$value' for user \"$wgDBuser\"\n";
1423                         $wgDatabase->doQuery( "ALTER USER $wgDBuser SET $key = '$value'" );
1424                         $wgDatabase->doQuery( "SET $key = '$value'" );
1425                 }
1426                 else {
1427                         echo "... default value of \"$key\" is correctly set to \"$value\" for user \"$wgDBuser\"\n";
1428                 }
1429         }
1430
1431         $newsequences = array(
1432                 "log_log_id_seq",
1433                 "pr_id_val",
1434         );
1435
1436         $newtables = array(
1437                 array("category",          "patch-category.sql"),
1438                 array("mediawiki_version", "patch-mediawiki_version.sql"),
1439                 array("mwuser",            "patch-mwuser.sql"),
1440                 array("pagecontent",       "patch-pagecontent.sql"),
1441                 array("querycachetwo",     "patch-querycachetwo.sql"),
1442                 array("page_props",        "patch-page_props.sql"),
1443                 array("page_restrictions", "patch-page_restrictions.sql"),
1444                 array("profiling",         "patch-profiling.sql"),
1445                 array("protected_titles",  "patch-protected_titles.sql"),
1446                 array("redirect",          "patch-redirect.sql"),
1447                 array("updatelog",         "patch-updatelog.sql"),
1448         );
1449
1450         $newcols = array(
1451                 array("archive",       "ar_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1452                 array("archive",       "ar_len",               "INTEGER"),
1453                 array("archive",       "ar_page_id",           "INTEGER"),
1454                 array("archive",       "ar_parent_id",         "INTEGER"),
1455                 array("image",         "img_sha1",             "TEXT NOT NULL DEFAULT ''"),
1456                 array("ipblocks",      "ipb_anon_only",        "SMALLINT NOT NULL DEFAULT '0'"),
1457                 array("ipblocks",      "ipb_by_text",          "TEXT NOT NULL DEFAULT ''"),
1458                 array("ipblocks",      "ipb_block_email",      "SMALLINT NOT NULL DEFAULT '0'"),
1459                 array("ipblocks",      "ipb_create_account",   "SMALLINT NOT NULL DEFAULT '1'"),
1460                 array("ipblocks",      "ipb_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1461                 array("ipblocks",      "ipb_enable_autoblock", "SMALLINT NOT NULL DEFAULT '1'"),
1462                 array("filearchive",   "fa_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1463                 array("logging",       "log_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1464                 array("logging",       "log_id",               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('log_log_id_seq')"),
1465                 array("logging",       "log_params",           "TEXT"),
1466                 array("mwuser",        "user_editcount",       "INTEGER"),
1467                 array("mwuser",        "user_newpass_time",    "TIMESTAMPTZ"),
1468                 array("oldimage",      "oi_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1469                 array("oldimage",      "oi_metadata",          "BYTEA NOT NULL DEFAULT ''"),
1470                 array("oldimage",      "oi_media_type",        "TEXT"),
1471                 array("oldimage",      "oi_major_mime",        "TEXT NOT NULL DEFAULT 'unknown'"),
1472                 array("oldimage",      "oi_minor_mime",        "TEXT NOT NULL DEFAULT 'unknown'"),
1473                 array("oldimage",      "oi_sha1",              "TEXT NOT NULL DEFAULT ''"),
1474                 array("page_restrictions", "pr_id",            "INTEGER NOT NULL UNIQUE DEFAULT nextval('pr_id_val')"),
1475                 array("profiling",     "pf_memory",            "NUMERIC(18,10) NOT NULL DEFAULT 0"),
1476                 array("recentchanges", "rc_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1477                 array("recentchanges", "rc_log_action",        "TEXT"),
1478         array("recentchanges", "rc_log_type",          "TEXT"),
1479         array("recentchanges", "rc_logid",             "INTEGER NOT NULL DEFAULT 0"),
1480                 array("recentchanges", "rc_new_len",           "INTEGER"),
1481                 array("recentchanges", "rc_old_len",           "INTEGER"),
1482                 array("recentchanges", "rc_params",            "TEXT"),
1483                 array("revision",      "rev_len",              "INTEGER"),
1484                 array("revision",      "rev_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1485                 array("user_newtalk",  "user_last_timestamp",  "TIMESTAMPTZ"),
1486                 array("site_stats",    "ss_active_users",      "INTEGER DEFAULT '-1'"),
1487                 array("revision",      "rev_parent_id",        "INTEGER DEFAULT NULL"),
1488         );
1489
1490
1491         # table, column, desired type, USING clause if needed (with new default if needed)
1492         $typechanges = array(
1493                 array("archive",      "ar_deleted",      "smallint", ""),
1494                 array("archive",      "ar_minor_edit",   "smallint", "ar_minor_edit::smallint DEFAULT 0"),
1495                 array("filearchive",  "fa_deleted",      "smallint", ""),
1496                 array("filearchive",  "fa_height",       "integer",  ""),
1497                 array("filearchive",  "fa_metadata",     "bytea",    "decode(fa_metadata,'escape')"),
1498                 array("filearchive",  "fa_size",         "integer",  ""),
1499                 array("filearchive",  "fa_width",        "integer",  ""),
1500                 array("filearchive",  "fa_storage_group","text",     ""),
1501                 array("filearchive",  "fa_storage_key",  "text",     ""),
1502                 array("image",        "img_metadata",    "bytea",    "decode(img_metadata,'escape')"),
1503                 array("image",        "img_size",        "integer",  ""),
1504                 array("image",        "img_width",       "integer",  ""),
1505                 array("image",        "img_height",      "integer",  ""),
1506                 array("interwiki",    "iw_local",        "smallint", "iw_local::smallint DEFAULT 0"),
1507                 array("interwiki",    "iw_trans",        "smallint", "iw_trans::smallint DEFAULT 0"),
1508                 array("ipblocks",     "ipb_auto",        "smallint", "ipb_auto::smallint DEFAULT 0"),
1509                 array("ipblocks",     "ipb_anon_only",   "smallint", "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0"),
1510                 array("ipblocks",     "ipb_create_account", "smallint", "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1"),
1511                 array("ipblocks",     "ipb_enable_autoblock", "smallint", "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1"),
1512                 array("ipblocks",     "ipb_block_email", "smallint", "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0"),
1513                 array("ipblocks",     "ipb_address",     "text",     "ipb_address::text"),
1514                 array("ipblocks",     "ipb_deleted",     "smallint", "ipb_deleted::smallint"),
1515                 array("math",         "math_inputhash",  "bytea",    "decode(math_inputhash,'escape')"),
1516                 array("math",         "math_outputhash", "bytea",    "decode(math_outputhash,'escape')"),
1517                 array("mwuser",       "user_token",      "text",     ""),
1518                 array("mwuser",       "user_email_token","text",     ""),
1519                 array("objectcache",  "keyname",         "text",     ""),
1520                 array("oldimage",     "oi_height",       "integer",  ""),
1521                 array("oldimage",     "oi_size",         "integer",  ""),
1522                 array("oldimage",     "oi_width",        "integer",  ""),
1523                 array("page",         "page_is_redirect","smallint", "page_is_redirect::smallint DEFAULT 0"),
1524                 array("page",         "page_is_new",     "smallint", "page_is_new::smallint DEFAULT 0"),
1525                 array("querycache",   "qc_value",        "integer",  ""),
1526                 array("querycachetwo","qcc_value",       "integer",  ""),
1527                 array("recentchanges","rc_bot",          "smallint", "rc_bot::smallint DEFAULT 0"),
1528                 array("recentchanges","rc_deleted",      "smallint", ""),
1529                 array("recentchanges","rc_minor",        "smallint", "rc_minor::smallint DEFAULT 0"),
1530                 array("recentchanges","rc_new",          "smallint", "rc_new::smallint DEFAULT 0"),
1531                 array("recentchanges","rc_type",         "smallint", "rc_type::smallint DEFAULT 0"),
1532                 array("recentchanges","rc_patrolled",    "smallint", "rc_patrolled::smallint DEFAULT 0"),
1533                 array("revision",     "rev_deleted",     "smallint", "rev_deleted::smallint DEFAULT 0"),
1534                 array("revision",     "rev_minor_edit",  "smallint", "rev_minor_edit::smallint DEFAULT 0"),
1535                 array("templatelinks","tl_namespace",    "smallint", "tl_namespace::smallint"),
1536                 array("user_newtalk", "user_ip",         "text",     "host(user_ip)"),
1537         );
1538
1539         $newindexes = array(
1540                 array("archive",       "archive_user_text",  "(ar_user_text)"),
1541                 array("image",         "img_sha1",           "(img_sha1)"),
1542                 array("oldimage",      "oi_sha1",            "(oi_sha1)"),
1543                 array("revision",      "rev_text_id_idx",    "(rev_text_id)"),
1544                 array("recentchanges", "rc_timestamp_nobot", "(rc_timestamp) WHERE rc_bot = 0"),
1545                 array("watchlist",     "wl_user",            "(wl_user)"),
1546         );
1547
1548         $newrules = array(
1549         );
1550
1551         foreach ($newsequences as $ns) {
1552                 if ($wgDatabase->sequenceExists($ns)) {
1553                         echo "... sequence \"$ns\" already exists\n";
1554                         continue;
1555                 }
1556
1557                 echo "Creating sequence \"$ns\"\n";
1558                 $wgDatabase->query("CREATE SEQUENCE $ns");
1559         }
1560
1561         foreach ($newtables as $nt) {
1562                 if ($wgDatabase->tableExists($nt[0])) {
1563                         echo "... table \"$nt[0]\" already exists\n";
1564                         continue;
1565                 }
1566
1567                 echo "Creating table \"$nt[0]\"\n";
1568                 dbsource(archive($nt[1]));
1569         }
1570
1571         ## Needed before newcols
1572         if ($wgDatabase->tableExists("archive2")) {
1573                 echo "Converting \"archive2\" back to normal archive table\n";
1574                 if ($wgDatabase->ruleExists("archive", "archive_insert")) {
1575                         echo "Dropping rule \"archive_insert\"\n";
1576                         $wgDatabase->query("DROP RULE archive_insert ON archive");
1577                 }
1578                 if ($wgDatabase->ruleExists("archive", "archive_delete")) {
1579                         echo "Dropping rule \"archive_delete\"\n";
1580                         $wgDatabase->query("DROP RULE archive_delete ON archive");
1581                 }
1582                 dbsource(archive("patch-remove-archive2.sql"));
1583         }
1584         else
1585                 echo "... obsolete table \"archive2\" does not exist\n";
1586
1587         foreach ($newcols as $nc) {
1588                 $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
1589                 if (!is_null($fi)) {
1590                         echo "... column \"$nc[0].$nc[1]\" already exists\n";
1591                         continue;
1592                 }
1593
1594                 echo "Adding column \"$nc[0].$nc[1]\"\n";
1595                 $wgDatabase->query("ALTER TABLE $nc[0] ADD $nc[1] $nc[2]");
1596         }
1597
1598         foreach ($typechanges as $tc) {
1599                 $fi = $wgDatabase->fieldInfo($tc[0], $tc[1]);
1600                 if (is_null($fi)) {
1601                         echo "... error: expected column $tc[0].$tc[1] to exist\n";
1602                         exit(1);
1603                 }
1604
1605                 if ($fi->type() === $tc[2])
1606                         echo "... column \"$tc[0].$tc[1]\" is already of type \"$tc[2]\"\n";
1607                 else {
1608                         echo "Changing column type of \"$tc[0].$tc[1]\" from \"{$fi->type()}\" to \"$tc[2]\"\n";
1609                         $sql = "ALTER TABLE $tc[0] ALTER $tc[1] TYPE $tc[2]";
1610                         if (strlen($tc[3])) {
1611                                 $default = array();
1612                                 if (preg_match( '/DEFAULT (.+)/', $tc[3], $default)) {
1613                                         $sqldef = "ALTER TABLE $tc[0] ALTER $tc[1] SET DEFAULT $default[1]";
1614                                         $wgDatabase->query($sqldef);
1615                                         $tc[3] = preg_replace( '/\s*DEFAULT .+/', '', $tc[3]);
1616                                 }
1617                                 $sql .= " USING $tc[3]";
1618                         }
1619                         $sql .= ";\nCOMMIT;\n";
1620                         $wgDatabase->query($sql);
1621                 }
1622         }
1623
1624         if ($wgDatabase->fieldInfo('oldimage','oi_deleted')->type() !== 'smallint') {
1625                 echo "Changing \"oldimage.oi_deleted\" to type \"smallint\"\n";
1626                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
1627                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
1628                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
1629         }
1630         else
1631                 echo "... column \"oldimage.oi_deleted\" is already of type \"smallint\"\n";
1632
1633
1634         foreach ($newindexes as $ni) {
1635                 if (pg_index_exists($ni[0], $ni[1])) {
1636                         echo "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n";
1637                         continue;
1638                 }
1639                 echo "Creating index \"$ni[1]\" on table \"$ni[0]\" $ni[2]\n";
1640                 $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
1641         }
1642
1643         foreach ($newrules as $nr) {
1644                 if ($wgDatabase->ruleExists($nr[0], $nr[1])) {
1645                         echo "... rule \"$nr[1]\" on table \"$nr[0]\" already exists\n";
1646                         continue;
1647                 }
1648                 echo "Adding rule \"$nr[1]\" to table \"$nr[0]\"\n";
1649                 dbsource(archive($nr[2]));
1650         }
1651
1652         if ($wgDatabase->hasConstraint("oldimage_oi_name_fkey")) {
1653                 echo "Making foriegn key on table \"oldimage\" (to image) a cascade delete\n";
1654                 $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
1655                 $wgDatabase->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascade ".
1656                         "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE" );
1657         }
1658         else
1659                 echo "... table \"oldimage\" has correct cascade delete foreign key to image\n";
1660
1661         if (!$wgDatabase->triggerExists("page", "page_deleted")) {
1662                 echo "Adding function and trigger \"page_deleted\" to table \"page\"\n";
1663                 dbsource(archive('patch-page_deleted.sql'));
1664         }
1665         else
1666                 echo "... table \"page\" has \"page_deleted\" trigger\n";
1667
1668         $fi = $wgDatabase->fieldInfo("recentchanges", "rc_cur_id");
1669         if (!$fi->nullable()) {
1670                 echo "Removing NOT NULL constraint from \"recentchanges.rc_cur_id\"\n";
1671                 dbsource(archive('patch-rc_cur_id-not-null.sql'));
1672         }
1673         else
1674                 echo "... column \"recentchanges.rc_cur_id\" has a NOT NULL constraint\n";
1675
1676         $pu = pg_describe_index("pagelink_unique");
1677         if (!is_null($pu) && ($pu[0] != "pl_from" || $pu[1] != "pl_namespace" || $pu[2] != "pl_title")) {
1678                 echo "Dropping obsolete version of index \"pagelink_unique index\"\n";
1679                 $wgDatabase->query("DROP INDEX pagelink_unique");
1680                 $pu = null;
1681         }
1682         else
1683                 echo "... obsolete version of index \"pagelink_unique index\" does not exist\n";
1684
1685         if (is_null($pu)) {
1686                 echo "Creating index \"pagelink_unique index\"\n";
1687                 $wgDatabase->query("CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)");
1688         }
1689         else
1690                 echo "... index \"pagelink_unique_index\" already exists\n";
1691
1692         if (pg_fkey_deltype("revision_rev_user_fkey") == 'r') {
1693                 echo "... constraint \"revision_rev_user_fkey\" is ON DELETE RESTRICT\n";
1694         }
1695         else {
1696                 echo "Changing constraint \"revision_rev_user_fkey\" to ON DELETE RESTRICT\n";
1697                 dbsource(archive('patch-revision_rev_user_fkey.sql'));
1698         }
1699
1700         # Fix ipb_address index
1701         if (pg_index_exists('ipblocks', 'ipb_address_unique' )) {
1702                 echo "... have ipb_address_unique\n";
1703         } else {
1704                 echo "Adding ipb_address_unique index\n";
1705                 dbsource(archive('patch-ipb_address_unique.sql'));
1706         }
1707
1708         global $wgExtNewTables, $wgExtPGNewFields, $wgExtNewIndexes;
1709         # Add missing extension tables
1710         foreach ( $wgExtNewTables as $nt ) {
1711                 if ($wgDatabase->tableExists($nt[0])) {
1712                         echo "... table \"$nt[0]\" already exists\n";
1713                         continue;
1714                 }
1715                 echo "Creating table \"$nt[0]\"\n";
1716                 dbsource($nt[1]);
1717         }
1718         # Add missing extension fields
1719         foreach ( $wgExtPGNewFields as $nc ) {
1720                 $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
1721                 if (!is_null($fi)) {
1722                         echo "... column \"$nc[0].$nc[1]\" already exists\n";
1723                         continue;
1724                 }
1725                 echo "Adding column \"$nc[0].$nc[1]\"\n";
1726                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1727         }
1728         # Add missing extension indexes
1729         foreach ( $wgExtNewIndexes as $ni ) {
1730                 if (pg_index_exists($ni[0], $ni[1])) {
1731                         echo "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n";
1732                         continue;
1733                 }
1734                 echo "Creating index \"$ni[1]\" on table \"$ni[0]\"\n";
1735                 dbsource($ni[2]);
1736         }
1737
1738         # Tweak the page_title tsearch2 trigger to filter out slashes
1739         # This is create or replace, so harmless to call if not needed
1740         dbsource(archive('patch-ts2pagetitle.sql'));
1741
1742         ## If the server is 8.3 or higher, rewrite teh tsearch2 triggers
1743         ## in case they have the old 'default' versions
1744         if ( $numver >= 8.3 )
1745                 dbsource(archive('patch-tsearch2funcs.sql'));
1746
1747         return;
1748 }
1749