maintenance/updaters.inc

   1 <?php
   2 /**
   3  * @addtogroup Maintenance
   4  */
   5
   6  /** */
   7
   8 if ( !defined( 'MEDIAWIKI' ) ) {
   9         echo "This file is not a valid entry point\n";
  10         exit( 1 );
  11 }
  12
  13 require_once 'convertLinks.inc';
  14 require_once 'userDupes.inc';
  15 require_once 'deleteDefaultMessages.php';
  16 # Extension updates
  17 require_once( "$IP/includes/Hooks.php" );
  18
  19 /**
  20  * List of update functions to call on a MySQL-based MediaWiki installation,
  21  * in sequence. First item is function name, rest are parameters to pass.
  22  */
  23 $wgMysqlUpdates = array(
  24         // 1.2
  25         // update_passwords obsolete
  26         array( 'add_field', 'ipblocks',      'ipb_id',           'patch-ipblocks.sql' ),
  27         array( 'add_field', 'ipblocks',      'ipb_expiry',       'patch-ipb_expiry.sql' ),
  28         array( 'do_interwiki_update' ),
  29         array( 'do_index_update' ),
  30         // do_linkscc_update obsolete
  31         array( 'add_table', 'hitcounter',                        'patch-hitcounter.sql' ),
  32         array( 'add_field', 'recentchanges', 'rc_type',          'patch-rc_type.sql' ),
  33
  34         // 1.3
  35         array( 'add_field', 'user',          'user_real_name',   'patch-user-realname.sql' ),
  36         array( 'add_table', 'querycache',                        'patch-querycache.sql' ),
  37         array( 'add_table', 'objectcache',                       'patch-objectcache.sql' ),
  38         array( 'add_table', 'categorylinks',                     'patch-categorylinks.sql' ),
  39         // do_linkscc_1_3_update obsolete
  40         array( 'do_old_links_update' ),
  41         array( 'add_field', 'recentchanges', 'rc_ip',            'patch-rc_ip.sql' ),
  42
  43         // 1.4
  44         array( 'do_image_name_unique_update' ),
  45         array( 'add_field', 'recentchanges', 'rc_id',            'patch-rc_id.sql' ),
  46         array( 'add_field', 'recentchanges', 'rc_patrolled',     'patch-rc-patrol.sql' ),
  47         array( 'add_table', 'logging',                           'patch-logging.sql' ),
  48         // do_user_rights_update obsolete
  49         array( 'add_field', 'user',          'user_token',       'patch-user_token.sql' ),
  50         // old, old_articleid, patch-remove-old-title-namespace.sql obsolete
  51         // user_groups, patch-userlevels.sql obsolete
  52         // do_group_update() obsolete
  53         array( 'do_watchlist_update' ),
  54         array( 'do_user_update' ),
  55         // do_copy_newtalk_to_watchlist obsolete
  56
  57         // 1.5
  58         array( 'do_schema_restructuring' ),
  59         array( 'add_field', 'logging',       'log_params',       'patch-log_params.sql' ),
  60         array( 'do_logging_encoding' ),
  61         array( 'add_field', 'archive',       'ar_rev_id',        'patch-archive-rev_id.sql' ),
  62         array( 'add_field', 'page',          'page_len',         'patch-page_len.sql' ),
  63         array( 'do_inverse_timestamp' ),
  64         array( 'do_text_id' ),
  65         array( 'add_field', 'revision',      'rev_deleted',      'patch-rev_deleted.sql' ),
  66         array( 'add_field', 'image',         'img_width',        'patch-img_width.sql' ),
  67         array( 'add_field', 'image',         'img_metadata',     'patch-img_metadata.sql' ),
  68         array( 'add_field', 'user',          'user_email_token', 'patch-user_email_token.sql' ),
  69         array( 'add_field', 'archive',       'ar_text_id',       'patch-archive-text_id.sql' ),
  70         array( 'do_namespace_size' ),
  71         array( 'add_field', 'image',         'img_media_type',   'patch-img_media_type.sql' ),
  72         array( 'do_pagelinks_update' ),
  73         array( 'do_drop_img_type' ),
  74         array( 'do_user_unique_update' ),
  75         array( 'do_user_groups_update' ),
  76         array( 'add_field', 'site_stats',    'ss_total_pages',   'patch-ss_total_articles.sql' ),
  77         array( 'add_table', 'user_newtalk',                      'patch-usernewtalk2.sql' ),
  78         array( 'add_table', 'transcache',                        'patch-transcache.sql' ),
  79         array( 'add_field', 'interwiki',     'iw_trans',         'patch-interwiki-trans.sql' ),
  80         array( 'add_table', 'trackbacks',                        'patch-trackbacks.sql' ),
  81
  82         // 1.6
  83         array( 'do_watchlist_null' ),
  84         // do_image_index_update obsolete
  85         array( 'do_logging_timestamp_index' ),
  86         array( 'add_field', 'ipblocks',        'ipb_range_start',  'patch-ipb_range_start.sql' ),
  87         array( 'do_page_random_update' ),
  88         array( 'add_field', 'user',            'user_registration','patch-user_registration.sql' ),
  89         array( 'do_templatelinks_update' ),
  90         array( 'add_table', 'externallinks',                       'patch-externallinks.sql' ),
  91         array( 'add_table', 'job',                                 'patch-job.sql' ),
  92         array( 'add_field', 'site_stats',      'ss_images',        'patch-ss_images.sql' ),
  93         array( 'add_table', 'langlinks',                           'patch-langlinks.sql' ),
  94         array( 'add_table', 'querycache_info',                     'patch-querycacheinfo.sql' ),
  95         array( 'add_table', 'filearchive',                         'patch-filearchive.sql' ),
  96         array( 'add_field', 'ipblocks',        'ipb_anon_only',    'patch-ipb_anon_only.sql' ),
  97         array( 'do_rc_indices_update' ),
  98
  99         // 1.9
 100         array( 'add_field', 'user',          'user_newpass_time', 'patch-user_newpass_time.sql' ),
 101         array( 'add_table', 'redirect',                           'patch-redirect.sql' ),
 102         array( 'add_table', 'querycachetwo', 'patch-querycachetwo.sql' ),
 103         array( 'add_field', 'ipblocks',      'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ),
 104         array( 'do_backlinking_indices_update' ),
 105         array( 'add_field', 'recentchanges', 'rc_old_len',        'patch-rc_len.sql' ),
 106         array( 'add_field', 'user',          'user_editcount',    'patch-user_editcount.sql' ),
 107
 108         // 1.10
 109         array( 'do_restrictions_update' ),
 110         array( 'add_field', 'logging',       'log_id',           'patch-log_id.sql' ),
 111         array( 'add_field', 'revision',      'rev_parent_id',    'patch-rev_parent_id.sql' ),
 112         array( 'add_field', 'page_restrictions', 'pr_id',        'patch-page_restrictions_sortkey.sql' ),
 113         array( 'add_field', 'revision',      'rev_len',          'patch-rev_len.sql' ),
 114         array( 'add_field', 'recentchanges', 'rc_deleted',       'patch-rc_deleted.sql' ),
 115         array( 'add_field', 'logging',       'log_deleted',      'patch-log_deleted.sql' ),
 116         array( 'add_field', 'archive',       'ar_deleted',       'patch-ar_deleted.sql' ),
 117         array( 'add_field', 'ipblocks',      'ipb_deleted',      'patch-ipb_deleted.sql' ),
 118         array( 'add_field', 'filearchive',   'fa_deleted',       'patch-fa_deleted.sql' ),
 119         array( 'add_field', 'archive',       'ar_len',           'patch-ar_len.sql' ),
 120
 121         // 1.11
 122         array( 'add_field', 'ipblocks',      'ipb_block_email',  'patch-ipb_emailban.sql' ),
 123         array( 'do_categorylinks_indices_update' ),
 124         array( 'add_field', 'oldimage',      'oi_metadata',      'patch-oi_metadata.sql'),
 125         array( 'do_archive_user_index' ),
 126         array( 'do_image_user_index' ),
 127         array( 'do_oldimage_user_index' ),
 128         array( 'add_field', 'archive',       'ar_page_id',       'patch-archive-page_id.sql'),
 129         array( 'add_field', 'image',         'img_sha1',         'patch-img_sha1.sql' ),
 130
 131         // 1.12
 132         array( 'add_table', 'protected_titles',                  'patch-protected_titles.sql' ),
 133
 134         // 1.13
 135         array( 'add_field', 'ipblocks',      'ipb_by_text',      'patch-ipb_by_text.sql' ),
 136         array( 'add_table', 'page_props',                        'patch-page_props.sql' ),
 137         array( 'add_table', 'updatelog',                         'patch-updatelog.sql' ),
 138         array( 'add_table', 'category',                          'patch-category.sql' ),
 139         array( 'do_category_population' ),
 140         array( 'do_populate_parent_id' ),
 141 );
 142
 143
 144 # For extensions only, should be populated via hooks
 145 # $wgDBtype should be checked to specifiy the proper file
 146 $wgExtNewTables = array(); // table, dir
 147 $wgExtNewFields = array(); // table, column, dir
 148 $wgExtPGNewFields = array(); // table, column attributes; for PostgreSQL
 149 $wgExtNewIndexes = array(); // table, index, dir
 150
 151 # Helper function: check if the given key is present in the updatelog table.
 152 # Obviously, only use this for updates that occur after the updatelog table was
 153 # created!
 154 function update_row_exists( $key ) {
 155         $dbr = wfGetDB( DB_SLAVE );
 156         $row = $dbr->selectRow(
 157                 'updatelog',
 158                 '1',
 159                 array( 'ul_key' => $key ),
 160                 __FUNCTION__
 161         );
 162         return (bool)$row;
 163 }
 164
 165 function rename_table( $from, $to, $patch ) {
 166         global $wgDatabase;
 167         if ( $wgDatabase->tableExists( $from ) ) {
 168                 if ( $wgDatabase->tableExists( $to ) ) {
 169                         echo "...can't move table $from to $to, $to already exists.\n";
 170                 } else {
 171                         echo "Moving table $from to $to...";
 172                         dbsource( archive($patch), $wgDatabase );
 173                         echo "ok\n";
 174                 }
 175         } else {
 176                 // Source table does not exist
 177                 // Renames are done before creations, so this is typical for a new installation
 178                 // Ignore silently
 179         }
 180 }
 181
 182 function add_table( $name, $patch, $fullpath=false ) {
 183         global $wgDatabase;
 184         if ( $wgDatabase->tableExists( $name ) ) {
 185                 echo "...$name table already exists.\n";
 186         } else {
 187                 echo "Creating $name table...";
 188                 if( $fullpath ) {
 189                         dbsource( $patch, $wgDatabase );
 190                 } else {
 191                         dbsource( archive($patch), $wgDatabase );
 192                 }
 193                 echo "ok\n";
 194         }
 195 }
 196
 197 function add_field( $table, $field, $patch, $fullpath=false ) {
 198         global $wgDatabase;
 199         if ( !$wgDatabase->tableExists( $table ) ) {
 200                 echo "...$table table does not exist, skipping new field patch\n";
 201         } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
 202                 echo "...have $field field in $table table.\n";
 203         } else {
 204                 echo "Adding $field field to table $table...";
 205                 if( $fullpath ) {
 206                         dbsource( $patch, $wgDatabase );
 207                 } else {
 208                         dbsource( archive($patch), $wgDatabase );
 209                 }
 210                 echo "ok\n";
 211         }
 212 }
 213
 214 function add_index( $table, $index, $patch, $fullpath=false ) {
 215         global $wgDatabase;
 216         if( $wgDatabase->indexExists( $table, $index ) ) {
 217                 echo "...$index key already set on $table table.\n";
 218         } else {
 219                 echo "Adding $index key to table $table... ";
 220                 if( $fullpath ) {
 221                         dbsource( $patch, $wgDatabase );
 222                 } else {
 223                         dbsource( archive($patch), $wgDatabase );
 224                 }
 225                 echo "ok\n";
 226         }
 227 }
 228
 229 function do_revision_updates() {
 230         global $wgSoftwareRevision;
 231         if ( $wgSoftwareRevision < 1001 ) {
 232                 update_passwords();
 233         }
 234 }
 235
 236 function update_passwords() {
 237         wfDebugDieBacktrace( "This function needs to be updated or removed.\n" );
 238
 239         global $wgDatabase;
 240         $fname = "Update script: update_passwords()";
 241         print "\nIt appears that you need to update the user passwords in your\n" .
 242           "database. If you have already done this (if you've run this update\n" .
 243           "script once before, for example), doing so again will make all your\n" .
 244           "user accounts inaccessible, so be sure you only do this once.\n" .
 245           "Update user passwords? (yes/no)";
 246
 247         $resp = readconsole();
 248     if ( ! ( "Y" == $resp{0} || "y" == $resp{0} ) ) { return; }
 249
 250         $sql = "SELECT user_id,user_password FROM user";
 251         $source = $wgDatabase->query( $sql, $fname );
 252
 253         while ( $row = $wgDatabase->fetchObject( $source ) ) {
 254                 $id = $row->user_id;
 255                 $oldpass = $row->user_password;
 256                 $newpass = md5( "{$id}-{$oldpass}" );
 257
 258                 $sql = "UPDATE user SET user_password='{$newpass}' " .
 259                   "WHERE user_id={$id}";
 260                 $wgDatabase->query( $sql, $fname );
 261         }
 262 }
 263
 264 function do_interwiki_update() {
 265         # Check that interwiki table exists; if it doesn't source it
 266         global $wgDatabase, $IP;
 267         if( $wgDatabase->tableExists( "interwiki" ) ) {
 268                 echo "...already have interwiki table\n";
 269                 return true;
 270         }
 271         echo "Creating interwiki table: ";
 272         dbsource( archive("patch-interwiki.sql") );
 273         echo "ok\n";
 274         echo "Adding default interwiki definitions: ";
 275         dbsource( "$IP/maintenance/interwiki.sql" );
 276         echo "ok\n";
 277 }
 278
 279 function do_index_update() {
 280         # Check that proper indexes are in place
 281         global $wgDatabase;
 282         $meta = $wgDatabase->fieldInfo( "recentchanges", "rc_timestamp" );
 283         if( !$meta->isMultipleKey() ) {
 284                 echo "Updating indexes to 20031107: ";
 285                 dbsource( archive("patch-indexes.sql") );
 286                 echo "ok\n";
 287                 return true;
 288         }
 289         echo "...indexes seem up to 20031107 standards\n";
 290         return false;
 291 }
 292
 293 function do_image_index_update() {
 294         global $wgDatabase;
 295
 296         $meta = $wgDatabase->fieldInfo( "image", "img_major_mime" );
 297         if( !$meta->isMultipleKey() ) {
 298                 echo "Updating indexes to 20050912: ";
 299                 dbsource( archive("patch-mimesearch-indexes.sql") );
 300                 echo "ok\n";
 301                 return true;
 302         }
 303         echo "...indexes seem up to 20050912 standards\n";
 304         return false;
 305 }
 306
 307 function do_image_name_unique_update() {
 308         global $wgDatabase;
 309         if( $wgDatabase->indexExists( 'image', 'PRIMARY' ) ) {
 310                 echo "...image primary key already set.\n";
 311         } else {
 312                 echo "Making img_name the primary key... ";
 313                 dbsource( archive("patch-image_name_primary.sql"), $wgDatabase );
 314                 echo "ok\n";
 315         }
 316 }
 317
 318 function do_logging_timestamp_index() {
 319         global $wgDatabase;
 320         if( $wgDatabase->indexExists( 'logging', 'times' ) ) {
 321                 echo "...timestamp key on logging already exists.\n";
 322         } else {
 323                 echo "Adding timestamp key on logging table... ";
 324                 dbsource( archive("patch-logging-times-index.sql"), $wgDatabase );
 325                 echo "ok\n";
 326         }
 327 }
 328
 329 function do_archive_user_index() {
 330         global $wgDatabase;
 331         if( $wgDatabase->indexExists( 'archive', 'usertext_timestamp' ) ) {
 332                 echo "...usertext,timestamp key on archive already exists.\n";
 333         } else {
 334                 echo "Adding usertext,timestamp key on archive table... ";
 335                 dbsource( archive("patch-archive-user-index.sql"), $wgDatabase );
 336                 echo "ok\n";
 337         }
 338 }
 339
 340 function do_image_user_index() {
 341         global $wgDatabase;
 342         if( $wgDatabase->indexExists( 'image', 'img_usertext_timestamp' ) ) {
 343                 echo "...usertext,timestamp key on image already exists.\n";
 344         } else {
 345                 echo "Adding usertext,timestamp key on image table... ";
 346                 dbsource( archive("patch-image-user-index.sql"), $wgDatabase );
 347                 echo "ok\n";
 348         }
 349 }
 350
 351 function do_oldimage_user_index() {
 352         global $wgDatabase;
 353         if( $wgDatabase->indexExists( 'oldimage', 'oi_usertext_timestamp' ) ) {
 354                 echo "...usertext,timestamp key on oldimage already exists.\n";
 355         } else {
 356                 echo "Adding usertext,timestamp key on oldimage table... ";
 357                 dbsource( archive("patch-oldimage-user-index.sql"), $wgDatabase );
 358                 echo "ok\n";
 359         }
 360 }
 361
 362 function do_watchlist_update() {
 363         global $wgDatabase;
 364         $fname = 'do_watchlist_update';
 365         if( $wgDatabase->fieldExists( 'watchlist', 'wl_notificationtimestamp' ) ) {
 366                 echo "The watchlist table is already set up for email notification.\n";
 367         } else {
 368                 echo "Adding wl_notificationtimestamp field for email notification management.";
 369                 /* ALTER TABLE watchlist ADD (wl_notificationtimestamp varchar(14) binary NOT NULL default '0'); */
 370                 dbsource( archive( 'patch-email-notification.sql' ), $wgDatabase );
 371                 echo "ok\n";
 372         }
 373         # Check if we need to add talk page rows to the watchlist
 374         $talk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', $fname );
 375         $nontalk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', $fname );
 376         if ( $talk != $nontalk ) {
 377                 echo "Adding missing watchlist talk page rows... ";
 378                 flush();
 379
 380                 $wgDatabase->insertSelect( 'watchlist', 'watchlist',
 381                         array(
 382                                 'wl_user' => 'wl_user',
 383                                 'wl_namespace' => 'wl_namespace | 1',
 384                                 'wl_title' => 'wl_title',
 385                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 386                         ), array( 'NOT (wl_namespace & 1)' ), $fname, 'IGNORE' );
 387                 echo "ok\n";
 388         } else {
 389                 echo "...watchlist talk page rows already present\n";
 390         }
 391 }
 392
 393 function do_copy_newtalk_to_watchlist() {
 394         global $wgDatabase;
 395         global $wgCommandLineMode;      # this needs to be saved while getID() and getName() are called
 396
 397         $res = $wgDatabase->safeQuery( 'SELECT user_id, user_ip FROM !',
 398                 $wgDatabase->tableName( 'user_newtalk' ) );
 399         $num_newtalks=$wgDatabase->numRows($res);
 400         echo "Now converting ".$num_newtalks." user_newtalk entries to watchlist table entries ... \n";
 401
 402         $user = new User();
 403         for ( $i = 1; $i <= $num_newtalks; $i++ ) {
 404                 $wluser = $wgDatabase->fetchObject( $res );
 405                 if ($wluser->user_id == 0) { # anonymous users ... have IP numbers as "names"
 406                         if ($user->isIP($wluser->user_ip)) { # do only if it really looks like an IP number (double checked)
 407                                 $wgDatabase->replace( 'watchlist',
 408                                         array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
 409                                           array('wl_user'                       => 0,
 410                                                 'wl_namespace'                  => NS_USER_TALK,
 411                                                 'wl_title'                      => $wluser->user_ip,
 412                                                 'wl_notificationtimestamp'      => '19700101000000'
 413                                                 ), 'updaters.inc::do_watchlist_update2'
 414                                         );
 415                         }
 416                 } else { # normal users ... have user_ids
 417                         $user->setID($wluser->user_id);
 418                         $wgDatabase->replace( 'watchlist',
 419                                 array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
 420                                   array('wl_user'                       => $user->getID(),
 421                                         'wl_namespace'                  => NS_USER_TALK,
 422                                         'wl_title'                      => $user->getName(),
 423                                         'wl_notificationtimestamp'      => '19700101000000'
 424                                         ), 'updaters.inc::do_watchlist_update3'
 425                                 );
 426                 }
 427         }
 428         echo "Done.\n";
 429 }
 430
 431
 432 function do_user_update() {
 433         global $wgDatabase;
 434         if( $wgDatabase->fieldExists( 'user', 'user_emailauthenticationtimestamp' ) ) {
 435                 echo "User table contains old email authentication field. Dropping... ";
 436                 dbsource( archive( 'patch-email-authentication.sql' ), $wgDatabase );
 437                 echo "ok\n";
 438         } else {
 439                 echo "...user table does not contain old email authentication field.\n";
 440         }
 441 }
 442
 443 /**
 444  * 1.4 betas were missing the 'binary' marker from logging.log_title,
 445  * which causes a collation mismatch error on joins in MySQL 4.1.
 446  */
 447 function do_logging_encoding() {
 448         global $wgDatabase, $wgDBtype;
 449         if ($wgDBtype != 'mysql')
 450                 return;
 451         $logging = $wgDatabase->tableName( 'logging' );
 452         $res = $wgDatabase->query( "SELECT log_title FROM $logging LIMIT 0" );
 453         $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 454         $wgDatabase->freeResult( $res );
 455
 456         if( in_array( 'binary', $flags ) ) {
 457                 echo "Logging table has correct title encoding.\n";
 458         } else {
 459                 echo "Fixing title encoding on logging table... ";
 460                 dbsource( archive( 'patch-logging-title.sql' ), $wgDatabase );
 461                 echo "ok\n";
 462         }
 463 }
 464
 465 function do_schema_restructuring() {
 466         global $wgDatabase;
 467         $fname="do_schema_restructuring";
 468         if ( $wgDatabase->tableExists( 'page' ) ) {
 469                 echo "...page table already exists.\n";
 470         } else {
 471                 echo "...converting from cur/old to page/revision/text DB structure.\n"; flush();
 472                 echo wfTimestamp( TS_DB );
 473                 echo "......checking for duplicate entries.\n"; flush();
 474
 475                 list ($cur, $old, $page, $revision, $text) = $wgDatabase->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 476
 477                 $rows = $wgDatabase->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 478                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", $fname );
 479
 480                 if ( $wgDatabase->numRows( $rows ) > 0 ) {
 481                         echo wfTimestamp( TS_DB );
 482                         echo "......<b>Found duplicate entries</b>\n";
 483                         echo ( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 484                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 485                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 486                                         $duplicate[$row->cur_namespace] = array();
 487                                 }
 488                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 489                                 echo ( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 490                         }
 491                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 492                         $firstCond = true;
 493                         foreach ( $duplicate as $ns => $titles ) {
 494                                 if ( $firstCond ) {
 495                                         $firstCond = false;
 496                                 } else {
 497                                         $sql .= ' OR ';
 498                                 }
 499                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 500                                 $first = true;
 501                                 foreach ( $titles as $t ) {
 502                                         if ( $first ) {
 503                                                 $sql .= $wgDatabase->addQuotes( $t );
 504                                                 $first = false;
 505                                         } else {
 506                                                 $sql .= ', ' . $wgDatabase->addQuotes( $t );
 507                                         }
 508                                 }
 509                                 $sql .= ") ) \n";
 510                         }
 511                         # By sorting descending, the most recent entry will be the first in the list.
 512                         # All following entries will be deleted by the next while-loop.
 513                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 514
 515                         $rows = $wgDatabase->query( $sql, $fname );
 516
 517                         $prev_title = $prev_namespace = false;
 518                         $deleteId = array();
 519
 520                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 521                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 522                                         $deleteId[] = $row->cur_id;
 523                                 }
 524                                 $prev_title     = $row->cur_title;
 525                                 $prev_namespace = $row->cur_namespace;
 526                         }
 527                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 528                         $rows = $wgDatabase->query( $sql, $fname );
 529                         echo wfTimestamp( TS_DB );
 530                         echo "......<b>Deleted</b> ".$wgDatabase->affectedRows()." records.\n";
 531                 }
 532
 533
 534                 echo wfTimestamp( TS_DB );
 535                 echo "......Creating tables.\n";
 536                 $wgDatabase->query("CREATE TABLE $page (
 537                         page_id int(8) unsigned NOT NULL auto_increment,
 538                         page_namespace int NOT NULL,
 539                         page_title varchar(255) binary NOT NULL,
 540                         page_restrictions tinyblob NOT NULL,
 541                         page_counter bigint(20) unsigned NOT NULL default '0',
 542                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 543                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 544                         page_random real unsigned NOT NULL,
 545                         page_touched char(14) binary NOT NULL default '',
 546                         page_latest int(8) unsigned NOT NULL,
 547                         page_len int(8) unsigned NOT NULL,
 548
 549                         PRIMARY KEY page_id (page_id),
 550                         UNIQUE INDEX name_title (page_namespace,page_title),
 551                         INDEX (page_random),
 552                         INDEX (page_len)
 553                         ) TYPE=InnoDB", $fname );
 554                 $wgDatabase->query("CREATE TABLE $revision (
 555                         rev_id int(8) unsigned NOT NULL auto_increment,
 556                         rev_page int(8) unsigned NOT NULL,
 557                         rev_comment tinyblob NOT NULL,
 558                         rev_user int(5) unsigned NOT NULL default '0',
 559                         rev_user_text varchar(255) binary NOT NULL default '',
 560                         rev_timestamp char(14) binary NOT NULL default '',
 561                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 562                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 563                         rev_len int(8) unsigned,
 564                         rev_parent_id int(8) unsigned default NULL,
 565                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 566                         UNIQUE INDEX rev_id (rev_id),
 567                         INDEX rev_timestamp (rev_timestamp),
 568                         INDEX page_timestamp (rev_page,rev_timestamp),
 569                         INDEX user_timestamp (rev_user,rev_timestamp),
 570                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 571                         ) TYPE=InnoDB", $fname );
 572
 573                 echo wfTimestamp( TS_DB );
 574                 echo "......Locking tables.\n";
 575                 $wgDatabase->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", $fname );
 576
 577                 $maxold = intval( $wgDatabase->selectField( 'old', 'max(old_id)', '', $fname ) );
 578                 echo wfTimestamp( TS_DB );
 579                 echo "......maxold is {$maxold}\n";
 580
 581                 echo wfTimestamp( TS_DB );
 582                 global $wgLegacySchemaConversion;
 583                 if( $wgLegacySchemaConversion ) {
 584                         // Create HistoryBlobCurStub entries.
 585                         // Text will be pulled from the leftover 'cur' table at runtime.
 586                         echo "......Moving metadata from cur; using blob references to text in cur table.\n";
 587                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 588                         $cur_flags = "'object'";
 589                 } else {
 590                         // Copy all cur text in immediately: this may take longer but avoids
 591                         // having to keep an extra table around.
 592                         echo "......Moving text from cur.\n";
 593                         $cur_text = 'cur_text';
 594                         $cur_flags = "''";
 595                 }
 596                 $wgDatabase->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 597                                 old_timestamp, old_minor_edit, old_flags)
 598                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 599                         FROM $cur", $fname );
 600
 601                 echo wfTimestamp( TS_DB );
 602                 echo "......Setting up revision table.\n";
 603                 $wgDatabase->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 604                                 rev_minor_edit)
 605                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 606                                 old_timestamp, old_minor_edit
 607                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", $fname );
 608
 609                 echo wfTimestamp( TS_DB );
 610                 echo "......Setting up page table.\n";
 611                 $wgDatabase->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 612                                 page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 613                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 614                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 615                         FROM $cur,$revision
 616                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", $fname );
 617
 618                 echo wfTimestamp( TS_DB );
 619                 echo "......Unlocking tables.\n";
 620                 $wgDatabase->query( "UNLOCK TABLES", $fname );
 621
 622                 echo wfTimestamp( TS_DB );
 623                 echo "......Renaming old.\n";
 624                 $wgDatabase->query( "ALTER TABLE $old RENAME TO $text", $fname );
 625
 626                 echo wfTimestamp( TS_DB );
 627                 echo "...done.\n";
 628         }
 629 }
 630
 631 function do_inverse_timestamp() {
 632         global $wgDatabase;
 633         if( $wgDatabase->fieldExists( 'revision', 'inverse_timestamp' ) ) {
 634                 echo "Removing revision.inverse_timestamp and fixing indexes... ";
 635                 dbsource( archive( 'patch-inverse_timestamp.sql' ), $wgDatabase );
 636                 echo "ok\n";
 637         } else {
 638                 echo "revision timestamp indexes already up to 2005-03-13\n";
 639         }
 640 }
 641
 642 function do_text_id() {
 643         global $wgDatabase;
 644         if( $wgDatabase->fieldExists( 'revision', 'rev_text_id' ) ) {
 645                 echo "...rev_text_id already in place.\n";
 646         } else {
 647                 echo "Adding rev_text_id field... ";
 648                 dbsource( archive( 'patch-rev_text_id.sql' ), $wgDatabase );
 649                 echo "ok\n";
 650         }
 651 }
 652
 653 function do_namespace_size() {
 654         $tables = array(
 655                 'page'          => 'page',
 656                 'archive'       => 'ar',
 657                 'recentchanges' => 'rc',
 658                 'watchlist'     => 'wl',
 659                 'querycache'    => 'qc',
 660                 'logging'       => 'log',
 661         );
 662         foreach( $tables as $table => $prefix ) {
 663                 do_namespace_size_on( $table, $prefix );
 664                 flush();
 665         }
 666 }
 667
 668 function do_namespace_size_on( $table, $prefix ) {
 669         global $wgDatabase, $wgDBtype;
 670         if ($wgDBtype != 'mysql')
 671                 return;
 672         $field = $prefix . '_namespace';
 673
 674         $tablename = $wgDatabase->tableName( $table );
 675         $result = $wgDatabase->query( "SHOW COLUMNS FROM $tablename LIKE '$field'" );
 676         $info = $wgDatabase->fetchObject( $result );
 677         $wgDatabase->freeResult( $result );
 678
 679         if( substr( $info->Type, 0, 3 ) == 'int' ) {
 680                 echo "...$field is already a full int ($info->Type).\n";
 681         } else {
 682                 echo "Promoting $field from $info->Type to int... ";
 683
 684                 $sql = "ALTER TABLE $tablename MODIFY $field int NOT NULL";
 685                 $wgDatabase->query( $sql );
 686
 687                 echo "ok\n";
 688         }
 689 }
 690
 691 function do_pagelinks_update() {
 692         global $wgDatabase;
 693         if( $wgDatabase->tableExists( 'pagelinks' ) ) {
 694                 echo "...already have pagelinks table.\n";
 695         } else {
 696                 echo "Converting links and brokenlinks tables to pagelinks... ";
 697                 dbsource( archive( 'patch-pagelinks.sql' ), $wgDatabase );
 698                 echo "ok\n";
 699                 flush();
 700
 701                 global $wgCanonicalNamespaceNames;
 702                 foreach( $wgCanonicalNamespaceNames as $ns => $name ) {
 703                         if( $ns != 0 ) {
 704                                 do_pagelinks_namespace( $ns );
 705                         }
 706                 }
 707         }
 708 }
 709
 710 function do_pagelinks_namespace( $namespace ) {
 711         global $wgDatabase, $wgContLang;
 712
 713         $ns = intval( $namespace );
 714         echo "Cleaning up broken links for namespace $ns... ";
 715
 716         $pagelinks = $wgDatabase->tableName( 'pagelinks' );
 717         $name = $wgContLang->getNsText( $ns );
 718         $prefix = $wgDatabase->strencode( $name );
 719         $likeprefix = str_replace( '_', '\\_', $prefix);
 720
 721         $sql = "UPDATE $pagelinks
 722                    SET pl_namespace=$ns,
 723                        pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 724                  WHERE pl_namespace=0
 725                    AND pl_title LIKE '$likeprefix:%'";
 726
 727         $wgDatabase->query( $sql, 'do_pagelinks_namespace' );
 728         echo "ok\n";
 729 }
 730
 731 function do_drop_img_type() {
 732         global $wgDatabase;
 733
 734         if( $wgDatabase->fieldExists( 'image', 'img_type' ) ) {
 735                 echo "Dropping unused img_type field in image table... ";
 736                 dbsource( archive( 'patch-drop_img_type.sql' ), $wgDatabase );
 737                 echo "ok\n";
 738         } else {
 739                 echo "No img_type field in image table; Good.\n";
 740         }
 741 }
 742
 743 function do_old_links_update() {
 744         global $wgDatabase;
 745         if( $wgDatabase->tableExists( 'pagelinks' ) ) {
 746                 echo "Already have pagelinks; skipping old links table updates.\n";
 747         } else {
 748                 convertLinks(); flush();
 749         }
 750 }
 751
 752 function do_user_unique_update() {
 753         global $wgDatabase;
 754         $duper = new UserDupes( $wgDatabase );
 755         if( $duper->hasUniqueIndex() ) {
 756                 echo "Already have unique user_name index.\n";
 757         } else {
 758                 if( !$duper->clearDupes() ) {
 759                         echo "WARNING: This next step will probably fail due to unfixed duplicates...\n";
 760                 }
 761                 echo "Adding unique index on user_name... ";
 762                 dbsource( archive( 'patch-user_nameindex.sql' ), $wgDatabase );
 763                 echo "ok\n";
 764         }
 765 }
 766
 767 function do_user_groups_update() {
 768         $fname = 'do_user_groups_update';
 769         global $wgDatabase;
 770
 771         if( $wgDatabase->tableExists( 'user_groups' ) ) {
 772                 echo "...user_groups table already exists.\n";
 773                 return do_user_groups_reformat();
 774         }
 775
 776         echo "Adding user_groups table... ";
 777         dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
 778         echo "ok\n";
 779
 780         if( !$wgDatabase->tableExists( 'user_rights' ) ) {
 781                 if( $wgDatabase->fieldExists( 'user', 'user_rights' ) ) {
 782                         echo "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion...";
 783                         dbsource( archive( 'patch-user_rights.sql' ), $wgDatabase );
 784                         echo "ok\n";
 785                 } else {
 786                         echo "*** WARNING: couldn't locate user_rights table or field for upgrade.\n";
 787                         echo "*** You may need to manually configure some sysops by manipulating\n";
 788                         echo "*** the user_groups table.\n";
 789                         return;
 790                 }
 791         }
 792
 793         echo "Converting user_rights table to user_groups... ";
 794         $result = $wgDatabase->select( 'user_rights',
 795                 array( 'ur_user', 'ur_rights' ),
 796                 array( "ur_rights != ''" ),
 797                 $fname );
 798
 799         while( $row = $wgDatabase->fetchObject( $result ) ) {
 800                 $groups = array_unique(
 801                         array_map( 'trim',
 802                                 explode( ',', $row->ur_rights ) ) );
 803
 804                 foreach( $groups as $group ) {
 805                         $wgDatabase->insert( 'user_groups',
 806                                 array(
 807                                         'ug_user'  => $row->ur_user,
 808                                         'ug_group' => $group ),
 809                                 $fname );
 810                 }
 811         }
 812         $wgDatabase->freeResult( $result );
 813         echo "ok\n";
 814 }
 815
 816 function do_user_groups_reformat() {
 817         # Check for bogus formats from previous 1.5 alpha code.
 818         global $wgDatabase;
 819         $info = $wgDatabase->fieldInfo( 'user_groups', 'ug_group' );
 820
 821         if( $info->type() == 'int' ) {
 822                 $oldug = $wgDatabase->tableName( 'user_groups' );
 823                 $newug = $wgDatabase->tableName( 'user_groups_bogus' );
 824                 echo "user_groups is in bogus intermediate format. Renaming to $newug... ";
 825                 $wgDatabase->query( "ALTER TABLE $oldug RENAME TO $newug" );
 826                 echo "ok\n";
 827
 828                 echo "Re-adding fresh user_groups table... ";
 829                 dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
 830                 echo "ok\n";
 831
 832                 echo "***\n";
 833                 echo "*** WARNING: You will need to manually fix up user permissions in the user_groups\n";
 834                 echo "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n";
 835                 echo "***\n";
 836         } else {
 837                 echo "...user_groups is in current format.\n";
 838         }
 839
 840 }
 841
 842 function do_watchlist_null() {
 843         # Make sure wl_notificationtimestamp can be NULL,
 844         # and update old broken items.
 845         global $wgDatabase;
 846         $info = $wgDatabase->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 847
 848         if( !$info->nullable() ) {
 849                 echo "Making wl_notificationtimestamp nullable... ";
 850                 dbsource( archive( 'patch-watchlist-null.sql' ), $wgDatabase );
 851                 echo "ok\n";
 852         } else {
 853                 echo "...wl_notificationtimestamp is already nullable.\n";
 854         }
 855
 856 }
 857
 858 /**
 859  * @bug 3946
 860  */
 861 function do_page_random_update() {
 862         global $wgDatabase;
 863
 864         echo "Setting page_random to a random value on rows where it equals 0...";
 865
 866         $page = $wgDatabase->tableName( 'page' );
 867         $wgDatabase->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", 'do_page_random_update' );
 868         $rows = $wgDatabase->affectedRows();
 869
 870         echo "changed $rows rows\n";
 871 }
 872
 873 function do_templatelinks_update() {
 874         global $wgDatabase, $wgLoadBalancer;
 875         $fname = 'do_templatelinks_update';
 876
 877         if ( $wgDatabase->tableExists( 'templatelinks' ) ) {
 878                 echo "...templatelinks table already exists\n";
 879                 return;
 880         }
 881         echo "Creating templatelinks table...\n";
 882         dbsource( archive('patch-templatelinks.sql'), $wgDatabase );
 883         echo "Populating...\n";
 884         if ( isset( $wgLoadBalancer ) && $wgLoadBalancer->getServerCount() > 1 ) {
 885                 // Slow, replication-friendly update
 886                 $res = $wgDatabase->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 887                         array( 'pl_namespace' => NS_TEMPLATE ), $fname );
 888                 $count = 0;
 889                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
 890                         $count = ($count + 1) % 100;
 891                         if ( $count == 0 ) {
 892                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
 893                                         wfWaitForSlaves( 10 );
 894                                 } else {
 895                                         sleep( 1 );
 896                                 }
 897                         }
 898                         $wgDatabase->insert( 'templatelinks',
 899                                 array(
 900                                         'tl_from' => $row->pl_from,
 901                                         'tl_namespace' => $row->pl_namespace,
 902                                         'tl_title' => $row->pl_title,
 903                                 ), $fname
 904                         );
 905
 906                 }
 907                 $wgDatabase->freeResult( $res );
 908         } else {
 909                 // Fast update
 910                 $wgDatabase->insertSelect( 'templatelinks', 'pagelinks',
 911                         array(
 912                                 'tl_from' => 'pl_from',
 913                                 'tl_namespace' => 'pl_namespace',
 914                                 'tl_title' => 'pl_title'
 915                         ), array(
 916                                 'pl_namespace' => 10
 917                         ), $fname
 918                 );
 919         }
 920         echo "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n";
 921 }
 922
 923 // Add index on ( rc_namespace, rc_user_text ) [Jul. 2006]
 924 // Add index on ( rc_user_text, rc_timestamp ) [Nov. 2006]
 925 function do_rc_indices_update() {
 926         global $wgDatabase;
 927         echo( "Checking for additional recent changes indices...\n" );
 928
 929         $indexes = array(
 930                 'rc_ns_usertext' => 'patch-recentchanges-utindex.sql',
 931                 'rc_user_text' => 'patch-rc_user_text-index.sql',
 932         );
 933
 934         foreach( $indexes as $index => $patch ) {
 935                 $info = $wgDatabase->indexInfo( 'recentchanges', $index, __METHOD__ );
 936                 if( !$info ) {
 937                         echo( "...index `{$index}` not found; adding..." );
 938                         dbsource( archive( $patch ) );
 939                         echo( "done.\n" );
 940                 } else {
 941                         echo( "...index `{$index}` seems ok.\n" );
 942                 }
 943         }
 944 }
 945
 946 function index_has_field($table, $index, $field) {
 947         global $wgDatabase;
 948         echo( "Checking if $table index $index includes field $field...\n" );
 949         $info = $wgDatabase->indexInfo( $table, $index, __METHOD__ );
 950         if( $info ) {
 951                 foreach($info as $row) {
 952                         if($row->Column_name == $field) {
 953                                 echo( "...index $index on table $table seems to be ok\n" );
 954                                 return true;
 955                         }
 956                 }
 957         }
 958         echo( "...index $index on table $table has no field $field; adding\n" );
 959         return false;
 960 }
 961
 962 function do_backlinking_indices_update() {
 963         echo( "Checking for backlinking indices...\n" );
 964         if (!index_has_field('pagelinks', 'pl_namespace', 'pl_from') ||
 965                 !index_has_field('templatelinks', 'tl_namespace', 'tl_from') ||
 966                 !index_has_field('imagelinks', 'il_to', 'il_from'))
 967         {
 968                 dbsource( archive( 'patch-backlinkindexes.sql' ) );
 969         }
 970 }
 971
 972 function do_categorylinks_indices_update() {
 973         echo( "Checking for categorylinks indices...\n" );
 974         if (!index_has_field('categorylinks', 'cl_sortkey', 'cl_from'))
 975         {
 976                 dbsource( archive( 'patch-categorylinksindex.sql' ) );
 977         }
 978 }
 979
 980 function do_stats_init() {
 981         // Sometimes site_stats table is not properly populated.
 982         global $wgDatabase;
 983         echo "Checking site_stats row...";
 984         $row = $wgDatabase->selectRow( 'site_stats', '*', array( 'ss_row_id' => 1 ), __METHOD__ );
 985         if( $row === false ) {
 986                 echo "data is missing! rebuilding...\n";
 987
 988                 global $IP;
 989                 require_once "$IP/maintenance/initStats.inc";
 990                 wfInitStats();
 991         } else {
 992                 echo "ok.\n";
 993         }
 994 }
 995
 996 function purge_cache() {
 997         global $wgDatabase;
 998         # We can't guarantee that the user will be able to use TRUNCATE,
 999         # but we know that DELETE is available to us
1000         echo( "Purging caches..." );
1001         $wgDatabase->delete( 'objectcache', '*', __METHOD__ );
1002         echo( "done.\n" );
1003 }
1004
1005 function do_all_updates( $shared = false, $purge = true ) {
1006         global $wgNewTables, $wgNewFields, $wgRenamedTables, $wgSharedDB, $wgDatabase, $wgDBtype, $IP;
1007
1008         wfRunHooks('LoadExtensionSchemaUpdates');
1009
1010         $doUser = !$wgSharedDB || $shared;
1011
1012         if ($wgDBtype === 'postgres') {
1013                 do_postgres_updates();
1014                 return;
1015         }
1016
1017         # Run core updates in sequence...
1018         global $wgMysqlUpdates;
1019         foreach( $wgMysqlUpdates as $params ) {
1020                 $func = array_shift( $params );
1021                 call_user_func_array( $func, $params );
1022                 flush();
1023         }
1024
1025         /// @fixme clean up this mess too!
1026         global $wgExtNewTables, $wgExtNewFields, $wgExtNewIndexes;
1027         # Add missing extension tables
1028         foreach ( $wgExtNewTables as $tableRecord ) {
1029                 add_table( $tableRecord[0], $tableRecord[1], true );
1030                 flush();
1031         }
1032         # Add missing extension fields
1033         foreach ( $wgExtNewFields as $fieldRecord ) {
1034                 if ( $fieldRecord[0] != 'user' || $doUser ) {
1035                         add_field( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1036                 }
1037                 flush();
1038         }
1039         # Add missing extension indexes
1040         foreach ( $wgExtNewIndexes as $fieldRecord ) {
1041                 add_index( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1042                 flush();
1043         }
1044
1045
1046         echo "Deleting old default messages (this may take a long time!)..."; flush();
1047         deleteDefaultMessages();
1048         echo "Done\n"; flush();
1049
1050         do_stats_init(); flush();
1051
1052         if( $purge ) {
1053                 purge_cache();
1054                 flush();
1055         }
1056 }
1057
1058 function archive($name) {
1059         global $wgDBtype, $IP;
1060         switch ($wgDBtype) {
1061         case "postgres":
1062                 return "$IP/maintenance/postgres/archives/$name";
1063         default:
1064                 return "$IP/maintenance/archives/$name";
1065         }
1066 }
1067
1068 function do_restrictions_update() {
1069         # Adding page_restrictions table, obsoleting page.page_restrictions.
1070         #  Migrating old restrictions to new table
1071         # -- Andrew Garrett, January 2007.
1072
1073         global $wgDatabase;
1074
1075         $name = 'page_restrictions';
1076         $patch = 'patch-page_restrictions.sql';
1077         $patch2 = 'patch-page_restrictions_sortkey.sql';
1078
1079         if ( $wgDatabase->tableExists( $name ) ) {
1080                 echo "...$name table already exists.\n";
1081         } else {
1082                 echo "Creating $name table...";
1083                 dbsource( archive($patch), $wgDatabase );
1084                 dbsource( archive($patch2), $wgDatabase );
1085                 echo "ok\n";
1086
1087                 echo "Migrating old restrictions to new table...";
1088
1089                 $res = $wgDatabase->select( 'page', array( 'page_id', 'page_restrictions' ), array("page_restrictions!=''", "page_restrictions!='edit=:move='"), __METHOD__ );
1090
1091                 $count = 0;
1092
1093                 while ($row = $wgDatabase->fetchObject($res) ) {
1094                         $count = ($count + 1) % 100;
1095
1096                         if ($count == 0) {
1097                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
1098                                         wfWaitForSlaves( 10 );
1099                                 } else {
1100                                         sleep( 1 );
1101                                 }
1102                         }
1103
1104                         # Figure out what the restrictions are..
1105                         $id = $row->page_id;
1106                         $flatrestrictions = explode( ':', $row->page_restrictions );
1107
1108                         $restrictions = array ();
1109                         foreach( $flatrestrictions as $restriction ) {
1110                                 $thisrestriction = explode( '=', $restriction, 2 );
1111                                 if( count( $thisrestriction ) == 1 ) {
1112                                         // Compatibility with old protections from before
1113                                         // separate move protection was added.
1114                                         list( $level ) = $thisrestriction;
1115                                         if( $level ) {
1116                                                 $restrictions['edit'] = $level;
1117                                                 $restrictions['move'] = $level;
1118                                         }
1119                                 } else {
1120                                         list( $type, $level ) = $thisrestriction;
1121                                         if( $level ) {
1122                                                 $restrictions[$type] = $level;
1123                                         }
1124                                 }
1125
1126                         $wgDatabase->update( 'page', array ( 'page_restrictions' => ''), array( 'page_id' => $id ), __METHOD__ );
1127
1128                         }
1129
1130                         foreach( $restrictions as $type => $level ) {
1131                                 $wgDatabase->insert( 'page_restrictions', array ( 'pr_page' => $id,
1132                                                                                         'pr_type' => $type,
1133                                                                                         'pr_level' => $level,
1134                                                                                         'pr_cascade' => 0,
1135                                                                                         'pr_expiry' => 'infinity' ),
1136                                                                                         __METHOD__ );
1137                         }
1138                 }
1139                 print "ok\n";
1140         }
1141 }
1142
1143 function do_category_population() {
1144         if( update_row_exists( 'populate category' ) ) {
1145                 echo "...category table already populated.\n";
1146                 return;
1147         }
1148         require_once( 'populateCategory.inc' );
1149         echo "Populating category table, printing progress markers.  ".
1150 "For large databases, you\n".
1151 "may want to hit Ctrl-C and do this manually with maintenance/\n".
1152 "populateCategory.php.\n";
1153         populateCategory( '', 10, 0, true );
1154         echo "Done populating category table.\n";
1155 }
1156
1157 function do_populate_parent_id() {
1158         if( update_row_exists( 'populate rev_parent_id' ) ) {
1159                 echo "...rev_parent_id column already populated.\n";
1160                 return;
1161         }
1162         require_once( 'populateParentId.php' );
1163 }
1164
1165 function
1166 pg_describe_table($table)
1167 {
1168 global  $wgDatabase, $wgDBmwschema;
1169         $q = <<<END
1170 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
1171         WHERE pg_class.relnamespace = pg_namespace.oid
1172           AND attrelid=pg_class.oid AND attnum > 0
1173           AND relname=%s AND nspname=%s
1174 END;
1175         $res = $wgDatabase->query(sprintf($q,
1176                         $wgDatabase->addQuotes($table),
1177                         $wgDatabase->addQuotes($wgDBmwschema)));
1178         if (!$res)
1179                 return null;
1180
1181         $cols = array();
1182         while ($r = $wgDatabase->fetchRow($res)) {
1183                 $cols[] = array(
1184                                 "name" => $r[0],
1185                                 "ord" => $r[1],
1186                         );
1187         }
1188         return $cols;
1189 }
1190
1191 function
1192 pg_describe_index($idx)
1193 {
1194 global  $wgDatabase, $wgDBmwschema;
1195
1196         // first fetch the key (which is a list of columns ords) and
1197         // the table the index applies to (an oid)
1198         $q = <<<END
1199 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
1200         WHERE nspname=%s
1201           AND pg_class.relnamespace = pg_namespace.oid
1202           AND relname=%s
1203           AND indexrelid=pg_class.oid
1204 END;
1205         $res = $wgDatabase->query(sprintf($q,
1206                         $wgDatabase->addQuotes($wgDBmwschema),
1207                         $wgDatabase->addQuotes($idx)));
1208         if (!$res)
1209                 return null;
1210         if (!($r = $wgDatabase->fetchRow($res))) {
1211                 $wgDatabase->freeResult($res);
1212                 return null;
1213         }
1214
1215         $indkey = $r[0];
1216         $relid = intval($r[1]);
1217         $indkeys = explode(" ", $indkey);
1218         $wgDatabase->freeResult($res);
1219
1220         $colnames = array();
1221         foreach ($indkeys as $rid) {
1222                 $query = <<<END
1223 SELECT attname FROM pg_class, pg_attribute
1224         WHERE attrelid=$relid
1225           AND attnum=%d
1226           AND attrelid=pg_class.oid
1227 END;
1228                 $r2 = $wgDatabase->query(sprintf($query, $rid));
1229                 if (!$r2)
1230                         return null;
1231                 if (!($row2 = $wgDatabase->fetchRow($r2))) {
1232                         $wgDatabase->freeResult($r2);
1233                         return null;
1234                 }
1235                 $colnames[] = $row2[0];
1236                 $wgDatabase->freeResult($r2);
1237         }
1238
1239         return $colnames;
1240 }
1241
1242 function
1243 pg_index_exists($table, $index)
1244 {
1245 global  $wgDatabase, $wgDBmwschema;
1246         $exists = $wgDatabase->selectField("pg_indexes", "indexname",
1247                         array(  "indexname" => $index,
1248                                 "tablename" => $table,
1249                                 "schemaname" => $wgDBmwschema));
1250         return $exists === $index;
1251 }
1252
1253 function
1254 pg_fkey_deltype($fkey)
1255 {
1256 global  $wgDatabase, $wgDBmwschema;
1257         $q = <<<END
1258 SELECT confdeltype FROM pg_constraint, pg_namespace
1259         WHERE connamespace=pg_namespace.oid
1260           AND nspname=%s
1261           AND conname=%s;
1262 END;
1263         $r = $wgDatabase->query(sprintf($q,
1264                 $wgDatabase->addQuotes($wgDBmwschema),
1265                 $wgDatabase->addQuotes($fkey)));
1266         if (!($row = $wgDatabase->fetchRow($r)))
1267                 return null;
1268         return $row[0];
1269 }
1270
1271 function
1272 pg_rule_def($table, $rule)
1273 {
1274 global  $wgDatabase, $wgDBmwschema;
1275         $q = <<<END
1276 SELECT definition FROM pg_rules
1277         WHERE schemaname = %s
1278           AND tablename = %s
1279           AND rulename = %s
1280 END;
1281         $r = $wgDatabase->query(sprintf($q,
1282                         $wgDatabase->addQuotes($wgDBmwschema),
1283                         $wgDatabase->addQuotes($table),
1284                         $wgDatabase->addQuotes($rule)));
1285         $row = $wgDatabase->fetchRow($r);
1286         if (!$row)
1287                 return null;
1288         $d = $row[0];
1289         $wgDatabase->freeResult($r);
1290         return $d;
1291 }
1292
1293 function do_postgres_updates() {
1294         global $wgDatabase, $wgVersion, $wgDBmwschema, $wgDBts2schema, $wgShowExceptionDetails, $wgDBuser;
1295
1296         ## Gather version numbers in case we need them
1297         $version = $wgDatabase->getServerVersion(); ## long string
1298         $numver = $wgDatabase->numeric_version; ## X.Y e.g. 8.3
1299
1300         $wgShowExceptionDetails = 1;
1301
1302         # Just in case their LocalSettings.php does not have this:
1303         if ( !isset( $wgDBmwschema ))
1304                 $wgDBmwschema = 'mediawiki';
1305
1306         # Verify that this user is configured correctly
1307         $safeuser = $wgDatabase->addQuotes($wgDBuser);
1308         $SQL = "SELECT array_to_string(useconfig,'*') FROM pg_catalog.pg_user WHERE usename = $safeuser";
1309         $config = pg_fetch_result( $wgDatabase->doQuery( $SQL ), 0, 0 );
1310         $conf = array();
1311         foreach( explode( '*', $config ) as $c ) {
1312                 list( $x,$y ) = explode( '=', $c );
1313                 $conf[$x] = $y;
1314         }
1315         if( !array_key_exists( 'search_path', $conf ) ) {
1316                 $search_path = '';
1317         }
1318         else {
1319                 $search_path = $conf['search_path'];
1320         }
1321         if( strpos( $search_path, $wgDBmwschema ) === false ) {
1322                 echo "Adding in schema \"$wgDBmwschema\" to search_path for user \"$wgDBuser\"\n";
1323                 $search_path = "$wgDBmwschema, $search_path";
1324         }
1325         if( strpos( $search_path, $wgDBts2schema ) === false ) {
1326                 echo "Adding in schema \"$wgDBts2schema\" to search_path for user \"$wgDBuser\"\n";
1327                 $search_path = "$search_path, $wgDBts2schema";
1328         }
1329         if( array_key_exists( 'search_path', $conf ) === false || $search_path != $conf['search_path'] ) {
1330                 $wgDatabase->doQuery( "ALTER USER $wgDBuser SET search_path = $search_path" );
1331                 $wgDatabase->doQuery( "SET search_path = $search_path" );
1332         }
1333         else {
1334                 $path = $conf['search_path'];
1335                 echo "... search_path for user \"$wgDBuser\" looks correct ($path)\n";
1336         }
1337         $goodconf = array(
1338                 'client_min_messages' => 'error',
1339                 'DateStyle'           => 'ISO, YMD',
1340                 'TimeZone'            => 'GMT'
1341         );
1342         foreach( array_keys( $goodconf ) AS $key ) {
1343                 $value = $goodconf[$key];
1344                 if( !array_key_exists( $key, $conf ) or $conf[$key] !== $value ) {
1345                         echo "Setting $key to '$value' for user \"$wgDBuser\"\n";
1346                         $wgDatabase->doQuery( "ALTER USER $wgDBuser SET $key = '$value'" );
1347                         $wgDatabase->doQuery( "SET $key = '$value'" );
1348                 }
1349                 else {
1350                         echo "... default value of \"$key\" is correctly set to \"$value\" for user \"$wgDBuser\"\n";
1351                 }
1352         }
1353
1354         $newsequences = array(
1355                 "log_log_id_seq",
1356                 "pr_id_val",
1357         );
1358
1359         $newtables = array(
1360                 array("category",          "patch-category.sql"),
1361                 array("mediawiki_version", "patch-mediawiki_version.sql"),
1362                 array("mwuser",            "patch-mwuser.sql"),
1363                 array("pagecontent",       "patch-pagecontent.sql"),
1364                 array("querycachetwo",     "patch-querycachetwo.sql"),
1365                 array("page_props",        "patch-page_props.sql"),
1366                 array("page_restrictions", "patch-page_restrictions.sql"),
1367                 array("profiling",         "patch-profiling.sql"),
1368                 array("protected_titles",  "patch-protected_titles.sql"),
1369                 array("redirect",          "patch-redirect.sql"),
1370                 array("updatelog",         "patch-updatelog.sql"),
1371         );
1372
1373         $newcols = array(
1374                 array("archive",       "ar_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1375                 array("archive",       "ar_len",               "INTEGER"),
1376                 array("archive",       "ar_page_id",           "INTEGER"),
1377                 array("image",         "img_sha1",             "TEXT NOT NULL DEFAULT ''"),
1378                 array("ipblocks",      "ipb_anon_only",        "CHAR NOT NULL DEFAULT '0'"),
1379                 array("ipblocks",      "ipb_by_text",          "TEXT NOT NULL DEFAULT ''"),
1380                 array("ipblocks",      "ipb_block_email",      "CHAR NOT NULL DEFAULT '0'"),
1381                 array("ipblocks",      "ipb_create_account",   "CHAR NOT NULL DEFAULT '1'"),
1382                 array("ipblocks",      "ipb_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1383                 array("ipblocks",      "ipb_enable_autoblock", "CHAR NOT NULL DEFAULT '1'"),
1384                 array("filearchive",   "fa_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1385                 array("logging",       "log_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1386                 array("logging",       "log_id",               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('log_log_id_seq')"),
1387                 array("logging",       "log_params",           "TEXT"),
1388                 array("mwuser",        "user_editcount",       "INTEGER"),
1389                 array("mwuser",        "user_newpass_time",    "TIMESTAMPTZ"),
1390                 array("oldimage",      "oi_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1391                 array("oldimage",      "oi_metadata",          "BYTEA NOT NULL DEFAULT ''"),
1392                 array("oldimage",      "oi_media_type",        "TEXT"),
1393                 array("oldimage",      "oi_major_mime",        "TEXT NOT NULL DEFAULT 'unknown'"),
1394                 array("oldimage",      "oi_minor_mime",        "TEXT NOT NULL DEFAULT 'unknown'"),
1395                 array("oldimage",      "oi_sha1",              "TEXT NOT NULL DEFAULT ''"),
1396                 array("page_restrictions", "pr_id",            "INTEGER NOT NULL UNIQUE DEFAULT nextval('pr_id_val')"),
1397                 array("recentchanges", "rc_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1398                 array("recentchanges", "rc_log_action",        "TEXT"),
1399         array("recentchanges", "rc_log_type",          "TEXT"),
1400         array("recentchanges", "rc_logid",             "INTEGER NOT NULL DEFAULT 0"),
1401                 array("recentchanges", "rc_new_len",           "INTEGER"),
1402                 array("recentchanges", "rc_old_len",           "INTEGER"),
1403                 array("recentchanges", "rc_params",            "TEXT"),
1404                 array("revision",      "rev_len",              "INTEGER"),
1405                 array("revision",      "rev_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1406         );
1407
1408
1409         # table, column, desired type, USING clause if needed (with new default if needed)
1410         $typechanges = array(
1411                 array("archive",      "ar_deleted",      "smallint", ""),
1412                 array("archive",      "ar_minor_edit",   "smallint", "ar_minor_edit::smallint DEFAULT 0"),
1413                 array("filearchive",  "fa_deleted",      "smallint", ""),
1414                 array("filearchive",  "fa_height",       "integer",  ""),
1415                 array("filearchive",  "fa_metadata",     "bytea",    "decode(fa_metadata,'escape')"),
1416                 array("filearchive",  "fa_size",         "integer",  ""),
1417                 array("filearchive",  "fa_width",        "integer",  ""),
1418                 array("filearchive",  "fa_storage_group","text",     ""),
1419                 array("filearchive",  "fa_storage_key",  "text",     ""),
1420                 array("image",        "img_metadata",    "bytea",    "decode(img_metadata,'escape')"),
1421                 array("image",        "img_size",        "integer",  ""),
1422                 array("image",        "img_width",       "integer",  ""),
1423                 array("image",        "img_height",      "integer",  ""),
1424                 array("interwiki",    "iw_local",        "smallint", "iw_local::smallint DEFAULT 0"),
1425                 array("interwiki",    "iw_trans",        "smallint", "iw_trans::smallint DEFAULT 0"),
1426                 array("ipblocks",     "ipb_auto",        "smallint", "ipb_auto::smallint DEFAULT 0"),
1427                 array("ipblocks",     "ipb_anon_only",   "smallint", "ipb_anon_only::smallint DEFAULT 0"),
1428                 array("ipblocks",     "ipb_create_account", "smallint", "ipb_create_account::smallint DEFAULT 1"),
1429                 array("ipblocks",     "ipb_enable_autoblock", "smallint", "ipb_enable_autoblock::smallint DEFAULT 1"),
1430                 array("ipblocks",     "ipb_block_email", "smallint", "ipb_block_email::smallint DEFAULT 0"),
1431                 array("ipblocks",     "ipb_address",     "text",     "ipb_address::text"),
1432                 array("ipblocks",     "ipb_deleted",     "smallint", "ipb_deleted::smallint"),
1433                 array("math",         "math_inputhash",  "bytea",    "decode(math_inputhash,'escape')"),
1434                 array("math",         "math_outputhash", "bytea",    "decode(math_outputhash,'escape')"),
1435                 array("mwuser",       "user_token",      "text",     ""),
1436                 array("mwuser",       "user_email_token","text",     ""),
1437                 array("objectcache",  "keyname",         "text",     ""),
1438                 array("oldimage",     "oi_height",       "integer",  ""),
1439                 array("oldimage",     "oi_size",         "integer",  ""),
1440                 array("oldimage",     "oi_width",        "integer",  ""),
1441                 array("page",         "page_is_redirect","smallint", "page_is_redirect::smallint DEFAULT 0"),
1442                 array("page",         "page_is_new",     "smallint", "page_is_new::smallint DEFAULT 0"),
1443                 array("querycache",   "qc_value",        "integer",  ""),
1444                 array("querycachetwo","qcc_value",       "integer",  ""),
1445                 array("recentchanges","rc_bot",          "smallint", "rc_bot::smallint DEFAULT 0"),
1446                 array("recentchanges","rc_deleted",      "smallint", ""),
1447                 array("recentchanges","rc_minor",        "smallint", "rc_minor::smallint DEFAULT 0"),
1448                 array("recentchanges","rc_new",          "smallint", "rc_new::smallint DEFAULT 0"),
1449                 array("recentchanges","rc_type",         "smallint", "rc_type::smallint DEFAULT 0"),
1450                 array("recentchanges","rc_patrolled",    "smallint", "rc_patrolled::smallint DEFAULT 0"),
1451                 array("revision",     "rev_minor_edit",  "smallint", "rev_minor_edit::smallint DEFAULT 0"),
1452                 array("templatelinks","tl_namespace",    "smallint", "tl_namespace::smallint"),
1453                 array("user_newtalk", "user_ip",         "text",     "host(user_ip)"),
1454         );
1455
1456         $newindexes = array(
1457                 array("archive",       "archive_user_text", "(ar_user_text)"),
1458                 array("image",         "img_sha1",          "(img_sha1)"),
1459                 array("oldimage",      "oi_sha1",           "(oi_sha1)"),
1460                 array("revision",      "rev_text_id_idx",   "(rev_text_id)"),
1461         );
1462
1463         $newrules = array(
1464         );
1465
1466         foreach ($newsequences as $ns) {
1467                 if ($wgDatabase->sequenceExists($ns)) {
1468                         echo "... sequence \"$ns\" already exists\n";
1469                         continue;
1470                 }
1471
1472                 echo "Creating sequence \"$ns\"\n";
1473                 $wgDatabase->query("CREATE SEQUENCE $ns");
1474         }
1475
1476         foreach ($newtables as $nt) {
1477                 if ($wgDatabase->tableExists($nt[0])) {
1478                         echo "... table \"$nt[0]\" already exists\n";
1479                         continue;
1480                 }
1481
1482                 echo "Creating table \"$nt[0]\"\n";
1483                 dbsource(archive($nt[1]));
1484         }
1485
1486         ## Needed before newcols
1487         if ($wgDatabase->tableExists("archive2")) {
1488                 echo "Converting \"archive2\" back to normal archive table\n";
1489                 if ($wgDatabase->ruleExists("archive", "archive_insert")) {
1490                         echo "Dropping rule \"archive_insert\"\n";
1491                         $wgDatabase->query("DROP RULE archive_insert ON archive");
1492                 }
1493                 if ($wgDatabase->ruleExists("archive", "archive_delete")) {
1494                         echo "Dropping rule \"archive_delete\"\n";
1495                         $wgDatabase->query("DROP RULE archive_delete ON archive");
1496                 }
1497                 dbsource(archive("patch-remove-archive2.sql"));
1498         }
1499         else
1500                 echo "... obsolete table \"archive2\" does not exist\n";
1501
1502         foreach ($newcols as $nc) {
1503                 $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
1504                 if (!is_null($fi)) {
1505                         echo "... column \"$nc[0].$nc[1]\" already exists\n";
1506                         continue;
1507                 }
1508
1509                 echo "Adding column \"$nc[0].$nc[1]\"\n";
1510                 $wgDatabase->query("ALTER TABLE $nc[0] ADD $nc[1] $nc[2]");
1511         }
1512
1513         foreach ($typechanges as $tc) {
1514                 $fi = $wgDatabase->fieldInfo($tc[0], $tc[1]);
1515                 if (is_null($fi)) {
1516                         echo "... error: expected column $tc[0].$tc[1] to exist\n";
1517                         exit(1);
1518                 }
1519
1520                 if ($fi->type() === $tc[2])
1521                         echo "... column \"$tc[0].$tc[1]\" is already of type \"$tc[2]\"\n";
1522                 else {
1523                         echo "Changing column type of \"$tc[0].$tc[1]\" from \"{$fi->type()}\" to \"$tc[2]\"\n";
1524                         $sql = "ALTER TABLE $tc[0] ALTER $tc[1] TYPE $tc[2]";
1525                         if (strlen($tc[3])) {
1526                                 $default = array();
1527                                 if (preg_match( '/DEFAULT (.+)/', $tc[3], $default)) {
1528                                         $sqldef = "ALTER TABLE $tc[0] ALTER $tc[1] SET DEFAULT $default[1]";
1529                                         $wgDatabase->query($sqldef);
1530                                         $tc[3] = preg_replace( '/\s*DEFAULT .+/', '', $tc[3]);
1531                                 }
1532                                 $sql .= " USING $tc[3]";
1533                         }
1534                         $sql .= ";\nCOMMIT;\n";
1535                         $wgDatabase->query($sql);
1536                 }
1537         }
1538
1539         if ($wgDatabase->fieldInfo('oldimage','oi_deleted')->type() !== 'smallint') {
1540                 echo "Changing \"oldimage.oi_deleted\" to type \"smallint\"\n";
1541                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
1542                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
1543                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
1544         }
1545         else
1546                 echo "... column \"oldimage.oi_deleted\" is already of type \"smallint\"\n";
1547
1548
1549         foreach ($newindexes as $ni) {
1550                 if (pg_index_exists($ni[0], $ni[1])) {
1551                         echo "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n";
1552                         continue;
1553                 }
1554                 echo "Creating index \"$ni[1]\" on table \"$ni[0]\" $ni[2]\n";
1555                 $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
1556         }
1557
1558         foreach ($newrules as $nr) {
1559                 if ($wgDatabase->ruleExists($nr[0], $nr[1])) {
1560                         echo "... rule \"$nr[1]\" on table \"$nr[0]\" already exists\n";
1561                         continue;
1562                 }
1563                 echo "Adding rule \"$nr[1]\" to table \"$nr[0]\"\n";
1564                 dbsource(archive($nr[2]));
1565         }
1566
1567         if ($wgDatabase->hasConstraint("oldimage_oi_name_fkey")) {
1568                 echo "Making foriegn key on table \"oldimage\" (to image) a cascade delete\n";
1569                 $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
1570                 $wgDatabase->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascade ".
1571                         "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE" );
1572         }
1573         else
1574                 echo "... table \"oldimage\" has correct cascade delete foreign key to image\n";
1575
1576         if (!$wgDatabase->triggerExists("page", "page_deleted")) {
1577                 echo "Adding function and trigger \"page_deleted\" to table \"page\"\n";
1578                 dbsource(archive('patch-page_deleted.sql'));
1579         }
1580         else
1581                 echo "... table \"page\" has \"page_deleted\" trigger\n";
1582
1583         $fi = $wgDatabase->fieldInfo("recentchanges", "rc_cur_id");
1584         if (!$fi->nullable()) {
1585                 echo "Removing NOT NULL constraint from \"recentchanges.rc_cur_id\"\n";
1586                 dbsource(archive('patch-rc_cur_id-not-null.sql'));
1587         }
1588         else
1589                 echo "... column \"recentchanges.rc_cur_id\" has a NOT NULL constraint\n";
1590
1591         $pu = pg_describe_index("pagelink_unique");
1592         if (!is_null($pu) && ($pu[0] != "pl_from" || $pu[1] != "pl_namespace" || $pu[2] != "pl_title")) {
1593                 echo "Dropping obsolete version of index \"pagelink_unique index\"\n";
1594                 $wgDatabase->query("DROP INDEX pagelink_unique");
1595                 $pu = null;
1596         }
1597         else
1598                 echo "... obsolete version of index \"pagelink_unique index\" does not exist\n";
1599
1600         if (is_null($pu)) {
1601                 echo "Creating index \"pagelink_unique index\"\n";
1602                 $wgDatabase->query("CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)");
1603         }
1604         else
1605                 echo "... index \"pagelink_unique_index\" aready exists\n";
1606
1607         if (pg_fkey_deltype("revision_rev_user_fkey") == 'r') {
1608                 echo "... constraint \"revision_rev_user_fkey\" is ON DELETE RESTRICT\n";
1609         }
1610         else {
1611                 echo "Changing constraint \"revision_rev_user_fkey\" to ON DELETE RESTRICT\n";
1612                 dbsource(archive('patch-revision_rev_user_fkey.sql'));
1613         }
1614
1615         global $wgExtNewTables, $wgExtPGNewFields, $wgExtNewIndexes;
1616         # Add missing extension tables
1617         foreach ( $wgExtNewTables as $nt ) {
1618                 if ($wgDatabase->tableExists($nt[0])) {
1619                         echo "... table \"$nt[0]\" already exists\n";
1620                         continue;
1621                 }
1622                 echo "Creating table \"$nt[0]\"\n";
1623                 dbsource($nt[1]);
1624         }
1625         # Add missing extension fields
1626         foreach ( $wgExtPGNewFields as $nc ) {
1627                 $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
1628                 if (!is_null($fi)) {
1629                         echo "... column \"$nc[0].$nc[1]\" already exists\n";
1630                         continue;
1631                 }
1632                 echo "Adding column \"$nc[0].$nc[1]\"\n";
1633                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1634         }
1635         # Add missing extension indexes
1636         foreach ( $wgExtNewIndexes as $ni ) {
1637                 if (pg_index_exists($ni[0], $ni[1])) {
1638                         echo "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n";
1639                         continue;
1640                 }
1641                 echo "Creating index \"$ni[1]\" on table \"$ni[0]\"\n";
1642                 dbsource($ni[2]);
1643         }
1644
1645         # Tweak the page_title tsearch2 trigger to filter out slashes
1646         # This is create or replace, so harmless to call if not needed
1647         dbsource(archive('patch-ts2pagetitle.sql'));
1648
1649         ## If the server is 8.3 or higher, rewrite teh tsearch2 triggers
1650         ## in case they have the old 'default' versions
1651         if ( $numver >= 8.3 )
1652                 dbsource(archive('patch-tsearch2funcs.sql'));
1653
1654         return;
1655 }