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