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