maintenance/updaters.inc

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup Maintenance
   5  */
   6
   7 if ( !defined( 'MEDIAWIKI' ) ) {
   8         echo "This file is not a valid entry point\n";
   9         exit( 1 );
  10 }
  11
  12 require_once 'convertLinks.inc';
  13 require_once 'userDupes.inc';
  14 require_once 'deleteDefaultMessages.php';
  15 # Extension updates
  16 require_once( "$IP/includes/Hooks.php" );
  17
  18 /**
  19  * List of update functions to call on a MySQL-based MediaWiki installation,
  20  * in sequence. First item is function name, rest are parameters to pass.
  21  */
  22 $wgMysqlUpdates = array(
  23         // 1.2
  24         // update_passwords obsolete
  25         array( 'add_field', 'ipblocks',      'ipb_id',           'patch-ipblocks.sql' ),
  26         array( 'add_field', 'ipblocks',      'ipb_expiry',       'patch-ipb_expiry.sql' ),
  27         array( 'do_interwiki_update' ),
  28         array( 'do_index_update' ),
  29         // do_linkscc_update obsolete
  30         array( 'add_table', 'hitcounter',                        'patch-hitcounter.sql' ),
  31         array( 'add_field', 'recentchanges', 'rc_type',          'patch-rc_type.sql' ),
  32
  33         // 1.3
  34         array( 'add_field', 'user',          'user_real_name',   'patch-user-realname.sql' ),
  35         array( 'add_table', 'querycache',                        'patch-querycache.sql' ),
  36         array( 'add_table', 'objectcache',                       'patch-objectcache.sql' ),
  37         array( 'add_table', 'categorylinks',                     'patch-categorylinks.sql' ),
  38         // do_linkscc_1_3_update obsolete
  39         array( 'do_old_links_update' ),
  40         array( 'add_field', 'recentchanges', 'rc_ip',            'patch-rc_ip.sql' ),
  41
  42         // 1.4
  43         array( 'do_image_name_unique_update' ),
  44         array( 'add_field', 'recentchanges', 'rc_id',            'patch-rc_id.sql' ),
  45         array( 'add_field', 'recentchanges', 'rc_patrolled',     'patch-rc-patrol.sql' ),
  46         array( 'add_table', 'logging',                           'patch-logging.sql' ),
  47         // do_user_rights_update obsolete
  48         array( 'add_field', 'user',          'user_token',       'patch-user_token.sql' ),
  49         // old, old_articleid, patch-remove-old-title-namespace.sql obsolete
  50         // user_groups, patch-userlevels.sql obsolete
  51         // do_group_update() obsolete
  52         array( 'do_watchlist_update' ),
  53         array( 'do_user_update' ),
  54         // do_copy_newtalk_to_watchlist obsolete
  55
  56         // 1.5
  57         array( 'do_schema_restructuring' ),
  58         array( 'add_field', 'logging',       'log_params',       'patch-log_params.sql' ),
  59         array( 'check_bin', 'logging',       'log_title',        'patch-logging-title.sql', ),
  60         array( 'add_field', 'archive',       'ar_rev_id',        'patch-archive-rev_id.sql' ),
  61         array( 'add_field', 'page',          'page_len',         'patch-page_len.sql' ),
  62         array( 'do_inverse_timestamp' ),
  63         array( 'do_text_id' ),
  64         array( 'add_field', 'revision',      'rev_deleted',      'patch-rev_deleted.sql' ),
  65         array( 'add_field', 'image',         'img_width',        'patch-img_width.sql' ),
  66         array( 'add_field', 'image',         'img_metadata',     'patch-img_metadata.sql' ),
  67         array( 'add_field', 'user',          'user_email_token', 'patch-user_email_token.sql' ),
  68         array( 'add_field', 'archive',       'ar_text_id',       'patch-archive-text_id.sql' ),
  69         array( 'do_namespace_size' ),
  70         array( 'add_field', 'image',         'img_media_type',   'patch-img_media_type.sql' ),
  71         array( 'do_pagelinks_update' ),
  72         array( 'do_drop_img_type' ),
  73         array( 'do_user_unique_update' ),
  74         array( 'do_user_groups_update' ),
  75         array( 'add_field', 'site_stats',    'ss_total_pages',   'patch-ss_total_articles.sql' ),
  76         array( 'add_table', 'user_newtalk',                      'patch-usernewtalk2.sql' ),
  77         array( 'add_table', 'transcache',                        'patch-transcache.sql' ),
  78         array( 'add_field', 'interwiki',     'iw_trans',         'patch-interwiki-trans.sql' ),
  79         array( 'add_table', 'trackbacks',                        'patch-trackbacks.sql' ),
  80
  81         // 1.6
  82         array( 'do_watchlist_null' ),
  83         // do_image_index_update obsolete
  84         array( 'do_logging_timestamp_index' ),
  85         array( 'add_field', 'ipblocks',        'ipb_range_start',  'patch-ipb_range_start.sql' ),
  86         array( 'do_page_random_update' ),
  87         array( 'add_field', 'user',            'user_registration','patch-user_registration.sql' ),
  88         array( 'do_templatelinks_update' ),
  89         array( 'add_table', 'externallinks',                       'patch-externallinks.sql' ),
  90         array( 'add_table', 'job',                                 'patch-job.sql' ),
  91         array( 'add_field', 'site_stats',      'ss_images',        'patch-ss_images.sql' ),
  92         array( 'add_table', 'langlinks',                           'patch-langlinks.sql' ),
  93         array( 'add_table', 'querycache_info',                     'patch-querycacheinfo.sql' ),
  94         array( 'add_table', 'filearchive',                         'patch-filearchive.sql' ),
  95         array( 'add_field', 'ipblocks',        'ipb_anon_only',    'patch-ipb_anon_only.sql' ),
  96         array( 'do_rc_indices_update' ),
  97
  98         // 1.9
  99         array( 'add_field', 'user',          'user_newpass_time', 'patch-user_newpass_time.sql' ),
 100         array( 'add_table', 'redirect',                           'patch-redirect.sql' ),
 101         array( 'add_table', 'querycachetwo', 'patch-querycachetwo.sql' ),
 102         array( 'add_field', 'ipblocks',      'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ),
 103         array( 'do_backlinking_indices_update' ),
 104         array( 'add_field', 'recentchanges', 'rc_old_len',        'patch-rc_len.sql' ),
 105         array( 'add_field', 'user',          'user_editcount',    'patch-user_editcount.sql' ),
 106
 107         // 1.10
 108         array( 'do_restrictions_update' ),
 109         array( 'add_field', 'logging',       'log_id',           'patch-log_id.sql' ),
 110         array( 'add_field', 'revision',      'rev_parent_id',    'patch-rev_parent_id.sql' ),
 111         array( 'add_field', 'page_restrictions', 'pr_id',        'patch-page_restrictions_sortkey.sql' ),
 112         array( 'add_field', 'revision',      'rev_len',          'patch-rev_len.sql' ),
 113         array( 'add_field', 'recentchanges', 'rc_deleted',       'patch-rc_deleted.sql' ),
 114         array( 'add_field', 'logging',       'log_deleted',      'patch-log_deleted.sql' ),
 115         array( 'add_field', 'archive',       'ar_deleted',       'patch-ar_deleted.sql' ),
 116         array( 'add_field', 'ipblocks',      'ipb_deleted',      'patch-ipb_deleted.sql' ),
 117         array( 'add_field', 'filearchive',   'fa_deleted',       'patch-fa_deleted.sql' ),
 118         array( 'add_field', 'archive',       'ar_len',           'patch-ar_len.sql' ),
 119
 120         // 1.11
 121         array( 'add_field', 'ipblocks',      'ipb_block_email',  'patch-ipb_emailban.sql' ),
 122         array( 'do_categorylinks_indices_update' ),
 123         array( 'add_field', 'oldimage',      'oi_metadata',      'patch-oi_metadata.sql'),
 124         array( 'do_archive_user_index' ),
 125         array( 'do_image_user_index' ),
 126         array( 'do_oldimage_user_index' ),
 127         array( 'add_field', 'archive',       'ar_page_id',       'patch-archive-page_id.sql'),
 128         array( 'add_field', 'image',         'img_sha1',         'patch-img_sha1.sql' ),
 129
 130         // 1.12
 131         array( 'add_table', 'protected_titles',                  'patch-protected_titles.sql' ),
 132
 133         // 1.13
 134         array( 'add_field', 'ipblocks',      'ipb_by_text',      'patch-ipb_by_text.sql' ),
 135         array( 'add_table', 'page_props',                        'patch-page_props.sql' ),
 136         array( 'add_table', 'updatelog',                         'patch-updatelog.sql' ),
 137         array( 'add_table', 'category',                          'patch-category.sql' ),
 138         array( 'do_category_population' ),
 139         array( 'add_field', 'archive',       'ar_parent_id',     'patch-ar_parent_id.sql'),
 140         array( 'add_field', 'user_newtalk',  'user_last_timestamp', 'patch-user_last_timestamp.sql'),
 141         array( 'do_populate_parent_id' ),
 142         array( 'check_bin', 'protected_titles', 'pt_title',      'patch-pt_title-encoding.sql', ),
 143         array( 'maybe_do_profiling_memory_update' ),
 144         array( 'do_filearchive_indices_update' ),
 145         array( 'update_password_format' ),
 146         array( 'add_index', 'image',      'img_mime',      'patch-index-img_mime.sql' ),
 147 );
 148
 149
 150 # For extensions only, should be populated via hooks
 151 # $wgDBtype should be checked to specifiy the proper file
 152 $wgExtNewTables = array(); // table, dir
 153 $wgExtNewFields = array(); // table, column, dir
 154 $wgExtPGNewFields = array(); // table, column attributes; for PostgreSQL
 155 $wgExtNewIndexes = array(); // table, index, dir
 156
 157 # Helper function: check if the given key is present in the updatelog table.
 158 # Obviously, only use this for updates that occur after the updatelog table was
 159 # created!
 160 function update_row_exists( $key ) {
 161         $dbr = wfGetDB( DB_SLAVE );
 162         $row = $dbr->selectRow(
 163                 'updatelog',
 164                 '1',
 165                 array( 'ul_key' => $key ),
 166                 __FUNCTION__
 167         );
 168         return (bool)$row;
 169 }
 170
 171 function rename_table( $from, $to, $patch ) {
 172         global $wgDatabase;
 173         if ( $wgDatabase->tableExists( $from ) ) {
 174                 if ( $wgDatabase->tableExists( $to ) ) {
 175                         echo "...can't move table $from to $to, $to already exists.\n";
 176                 } else {
 177                         echo "Moving table $from to $to...";
 178                         dbsource( archive($patch), $wgDatabase );
 179                         echo "ok\n";
 180                 }
 181         } else {
 182                 // Source table does not exist
 183                 // Renames are done before creations, so this is typical for a new installation
 184                 // Ignore silently
 185         }
 186 }
 187
 188 function add_table( $name, $patch, $fullpath=false ) {
 189         global $wgDatabase;
 190         if ( $wgDatabase->tableExists( $name ) ) {
 191                 echo "...$name table already exists.\n";
 192         } else {
 193                 echo "Creating $name table...";
 194                 if( $fullpath ) {
 195                         dbsource( $patch, $wgDatabase );
 196                 } else {
 197                         dbsource( archive($patch), $wgDatabase );
 198                 }
 199                 echo "ok\n";
 200         }
 201 }
 202
 203 function add_field( $table, $field, $patch, $fullpath=false ) {
 204         global $wgDatabase;
 205         if ( !$wgDatabase->tableExists( $table ) ) {
 206                 echo "...$table table does not exist, skipping new field patch\n";
 207         } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
 208                 echo "...have $field field in $table table.\n";
 209         } else {
 210                 echo "Adding $field field to table $table...";
 211                 if( $fullpath ) {
 212                         dbsource( $patch, $wgDatabase );
 213                 } else {
 214                         dbsource( archive($patch), $wgDatabase );
 215                 }
 216                 echo "ok\n";
 217         }
 218 }
 219
 220 function add_index( $table, $index, $patch, $fullpath=false ) {
 221         global $wgDatabase;
 222         if( $wgDatabase->indexExists( $table, $index ) ) {
 223                 echo "...$index key already set on $table table.\n";
 224         } else {
 225                 echo "Adding $index key to table $table... ";
 226                 if( $fullpath ) {
 227                         dbsource( $patch, $wgDatabase );
 228                 } else {
 229                         dbsource( archive($patch), $wgDatabase );
 230                 }
 231                 echo "ok\n";
 232         }
 233 }
 234
 235 function do_revision_updates() {
 236         global $wgSoftwareRevision;
 237         if ( $wgSoftwareRevision < 1001 ) {
 238                 update_passwords();
 239         }
 240 }
 241
 242 function update_passwords() {
 243         wfDebugDieBacktrace( "This function needs to be updated or removed.\n" );
 244
 245         global $wgDatabase;
 246         $fname = "Update script: update_passwords()";
 247         print "\nIt appears that you need to update the user passwords in your\n" .
 248           "database. If you have already done this (if you've run this update\n" .
 249           "script once before, for example), doing so again will make all your\n" .
 250           "user accounts inaccessible, so be sure you only do this once.\n" .
 251           "Update user passwords? (yes/no)";
 252
 253         $resp = readconsole();
 254     if ( ! ( "Y" == $resp{0} || "y" == $resp{0} ) ) { return; }
 255
 256         $sql = "SELECT user_id,user_password FROM user";
 257         $source = $wgDatabase->query( $sql, $fname );
 258
 259         while ( $row = $wgDatabase->fetchObject( $source ) ) {
 260                 $id = $row->user_id;
 261                 $oldpass = $row->user_password;
 262                 $newpass = md5( "{$id}-{$oldpass}" );
 263
 264                 $sql = "UPDATE user SET user_password='{$newpass}' " .
 265                   "WHERE user_id={$id}";
 266                 $wgDatabase->query( $sql, $fname );
 267         }
 268 }
 269
 270 function do_interwiki_update() {
 271         # Check that interwiki table exists; if it doesn't source it
 272         global $wgDatabase, $IP;
 273         if( $wgDatabase->tableExists( "interwiki" ) ) {
 274                 echo "...already have interwiki table\n";
 275                 return true;
 276         }
 277         echo "Creating interwiki table: ";
 278         dbsource( archive("patch-interwiki.sql") );
 279         echo "ok\n";
 280         echo "Adding default interwiki definitions: ";
 281         dbsource( "$IP/maintenance/interwiki.sql" );
 282         echo "ok\n";
 283 }
 284
 285 function do_index_update() {
 286         # Check that proper indexes are in place
 287         global $wgDatabase;
 288         $meta = $wgDatabase->fieldInfo( "recentchanges", "rc_timestamp" );
 289         if( !$meta->isMultipleKey() ) {
 290                 echo "Updating indexes to 20031107: ";
 291                 dbsource( archive("patch-indexes.sql") );
 292                 echo "ok\n";
 293                 return true;
 294         }
 295         echo "...indexes seem up to 20031107 standards\n";
 296         return false;
 297 }
 298
 299 function do_image_index_update() {
 300         global $wgDatabase;
 301
 302         $meta = $wgDatabase->fieldInfo( "image", "img_major_mime" );
 303         if( !$meta->isMultipleKey() ) {
 304                 echo "Updating indexes to 20050912: ";
 305                 dbsource( archive("patch-mimesearch-indexes.sql") );
 306                 echo "ok\n";
 307                 return true;
 308         }
 309         echo "...indexes seem up to 20050912 standards\n";
 310         return false;
 311 }
 312
 313 function do_image_name_unique_update() {
 314         global $wgDatabase;
 315         if( $wgDatabase->indexExists( 'image', 'PRIMARY' ) ) {
 316                 echo "...image primary key already set.\n";
 317         } else {
 318                 echo "Making img_name the primary key... ";
 319                 dbsource( archive("patch-image_name_primary.sql"), $wgDatabase );
 320                 echo "ok\n";
 321         }
 322 }
 323
 324 function do_logging_timestamp_index() {
 325         global $wgDatabase;
 326         if( $wgDatabase->indexExists( 'logging', 'times' ) ) {
 327                 echo "...timestamp key on logging already exists.\n";
 328         } else {
 329                 echo "Adding timestamp key on logging table... ";
 330                 dbsource( archive("patch-logging-times-index.sql"), $wgDatabase );
 331                 echo "ok\n";
 332         }
 333 }
 334
 335 function do_archive_user_index() {
 336         global $wgDatabase;
 337         if( $wgDatabase->indexExists( 'archive', 'usertext_timestamp' ) ) {
 338                 echo "...usertext,timestamp key on archive already exists.\n";
 339         } else {
 340                 echo "Adding usertext,timestamp key on archive table... ";
 341                 dbsource( archive("patch-archive-user-index.sql"), $wgDatabase );
 342                 echo "ok\n";
 343         }
 344 }
 345
 346 function do_image_user_index() {
 347         global $wgDatabase;
 348         if( $wgDatabase->indexExists( 'image', 'img_usertext_timestamp' ) ) {
 349                 echo "...usertext,timestamp key on image already exists.\n";
 350         } else {
 351                 echo "Adding usertext,timestamp key on image table... ";
 352                 dbsource( archive("patch-image-user-index.sql"), $wgDatabase );
 353                 echo "ok\n";
 354         }
 355 }
 356
 357 function do_oldimage_user_index() {
 358         global $wgDatabase;
 359         if( $wgDatabase->indexExists( 'oldimage', 'oi_usertext_timestamp' ) ) {
 360                 echo "...usertext,timestamp key on oldimage already exists.\n";
 361         } else {
 362                 echo "Adding usertext,timestamp key on oldimage table... ";
 363                 dbsource( archive("patch-oldimage-user-index.sql"), $wgDatabase );
 364                 echo "ok\n";
 365         }
 366 }
 367
 368 function do_watchlist_update() {
 369         global $wgDatabase;
 370         $fname = 'do_watchlist_update';
 371         if( $wgDatabase->fieldExists( 'watchlist', 'wl_notificationtimestamp' ) ) {
 372                 echo "The watchlist table is already set up for email notification.\n";
 373         } else {
 374                 echo "Adding wl_notificationtimestamp field for email notification management.";
 375                 /* ALTER TABLE watchlist ADD (wl_notificationtimestamp varchar(14) binary NOT NULL default '0'); */
 376                 dbsource( archive( 'patch-email-notification.sql' ), $wgDatabase );
 377                 echo "ok\n";
 378         }
 379         # Check if we need to add talk page rows to the watchlist
 380         $talk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', $fname );
 381         $nontalk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', $fname );
 382         if ( $talk != $nontalk ) {
 383                 echo "Adding missing watchlist talk page rows... ";
 384                 flush();
 385
 386                 $wgDatabase->insertSelect( 'watchlist', 'watchlist',
 387                         array(
 388                                 'wl_user' => 'wl_user',
 389                                 'wl_namespace' => 'wl_namespace | 1',
 390                                 'wl_title' => 'wl_title',
 391                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 392                         ), array( 'NOT (wl_namespace & 1)' ), $fname, 'IGNORE' );
 393                 echo "ok\n";
 394         } else {
 395                 echo "...watchlist talk page rows already present\n";
 396         }
 397 }
 398
 399 function do_copy_newtalk_to_watchlist() {
 400         global $wgDatabase;
 401         global $wgCommandLineMode;      # this needs to be saved while getID() and getName() are called
 402
 403         $res = $wgDatabase->safeQuery( 'SELECT user_id, user_ip FROM !',
 404                 $wgDatabase->tableName( 'user_newtalk' ) );
 405         $num_newtalks=$wgDatabase->numRows($res);
 406         echo "Now converting ".$num_newtalks." user_newtalk entries to watchlist table entries ... \n";
 407
 408         $user = new User();
 409         for ( $i = 1; $i <= $num_newtalks; $i++ ) {
 410                 $wluser = $wgDatabase->fetchObject( $res );
 411                 if ($wluser->user_id == 0) { # anonymous users ... have IP numbers as "names"
 412                         if ($user->isIP($wluser->user_ip)) { # do only if it really looks like an IP number (double checked)
 413                                 $wgDatabase->replace( 'watchlist',
 414                                         array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
 415                                           array('wl_user'                       => 0,
 416                                                 'wl_namespace'                  => NS_USER_TALK,
 417                                                 'wl_title'                      => $wluser->user_ip,
 418                                                 'wl_notificationtimestamp'      => '19700101000000'
 419                                                 ), 'updaters.inc::do_watchlist_update2'
 420                                         );
 421                         }
 422                 } else { # normal users ... have user_ids
 423                         $user->setID($wluser->user_id);
 424                         $wgDatabase->replace( 'watchlist',
 425                                 array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
 426                                   array('wl_user'                       => $user->getID(),
 427                                         'wl_namespace'                  => NS_USER_TALK,
 428                                         'wl_title'                      => $user->getName(),
 429                                         'wl_notificationtimestamp'      => '19700101000000'
 430                                         ), 'updaters.inc::do_watchlist_update3'
 431                                 );
 432                 }
 433         }
 434         echo "Done.\n";
 435 }
 436
 437
 438 function do_user_update() {
 439         global $wgDatabase;
 440         if( $wgDatabase->fieldExists( 'user', 'user_emailauthenticationtimestamp' ) ) {
 441                 echo "User table contains old email authentication field. Dropping... ";
 442                 dbsource( archive( 'patch-email-authentication.sql' ), $wgDatabase );
 443                 echo "ok\n";
 444         } else {
 445                 echo "...user table does not contain old email authentication field.\n";
 446         }
 447 }
 448
 449 /**
 450  * 1.4 betas were missing the 'binary' marker from logging.log_title,
 451  * which causes a collation mismatch error on joins in MySQL 4.1.
 452  */
 453 function check_bin( $table, $field, $patchFile ) {
 454         global $wgDatabase, $wgDBtype;
 455         if ($wgDBtype != 'mysql')
 456                 return;
 457         $tableName = $wgDatabase->tableName( $table );
 458         $res = $wgDatabase->query( "SELECT $field FROM $tableName LIMIT 0" );
 459         $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 460         $wgDatabase->freeResult( $res );
 461
 462         if( in_array( 'binary', $flags ) ) {
 463                 echo "$table table has correct $field encoding.\n";
 464         } else {
 465                 echo "Fixing $field encoding on $table table... ";
 466                 dbsource( archive( $patchFile ), $wgDatabase );
 467                 echo "ok\n";
 468         }
 469 }
 470
 471 function do_schema_restructuring() {
 472         global $wgDatabase;
 473         $fname="do_schema_restructuring";
 474         if ( $wgDatabase->tableExists( 'page' ) ) {
 475                 echo "...page table already exists.\n";
 476         } else {
 477                 echo "...converting from cur/old to page/revision/text DB structure.\n"; flush();
 478                 echo wfTimestamp( TS_DB );
 479                 echo "......checking for duplicate entries.\n"; flush();
 480
 481                 list ($cur, $old, $page, $revision, $text) = $wgDatabase->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 482
 483                 $rows = $wgDatabase->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 484                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", $fname );
 485
 486                 if ( $wgDatabase->numRows( $rows ) > 0 ) {
 487                         echo wfTimestamp( TS_DB );
 488                         echo "......<b>Found duplicate entries</b>\n";
 489                         echo ( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 490                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 491                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 492                                         $duplicate[$row->cur_namespace] = array();
 493                                 }
 494                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 495                                 echo ( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 496                         }
 497                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 498                         $firstCond = true;
 499                         foreach ( $duplicate as $ns => $titles ) {
 500                                 if ( $firstCond ) {
 501                                         $firstCond = false;
 502                                 } else {
 503                                         $sql .= ' OR ';
 504                                 }
 505                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 506                                 $first = true;
 507                                 foreach ( $titles as $t ) {
 508                                         if ( $first ) {
 509                                                 $sql .= $wgDatabase->addQuotes( $t );
 510                                                 $first = false;
 511                                         } else {
 512                                                 $sql .= ', ' . $wgDatabase->addQuotes( $t );
 513                                         }
 514                                 }
 515                                 $sql .= ") ) \n";
 516                         }
 517                         # By sorting descending, the most recent entry will be the first in the list.
 518                         # All following entries will be deleted by the next while-loop.
 519                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 520
 521                         $rows = $wgDatabase->query( $sql, $fname );
 522
 523                         $prev_title = $prev_namespace = false;
 524                         $deleteId = array();
 525
 526                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 527                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 528                                         $deleteId[] = $row->cur_id;
 529                                 }
 530                                 $prev_title     = $row->cur_title;
 531                                 $prev_namespace = $row->cur_namespace;
 532                         }
 533                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 534                         $rows = $wgDatabase->query( $sql, $fname );
 535                         echo wfTimestamp( TS_DB );
 536                         echo "......<b>Deleted</b> ".$wgDatabase->affectedRows()." records.\n";
 537                 }
 538
 539
 540                 echo wfTimestamp( TS_DB );
 541                 echo "......Creating tables.\n";
 542                 $wgDatabase->query("CREATE TABLE $page (
 543                         page_id int(8) unsigned NOT NULL auto_increment,
 544                         page_namespace int NOT NULL,
 545                         page_title varchar(255) binary NOT NULL,
 546                         page_restrictions tinyblob NOT NULL,
 547                         page_counter bigint(20) unsigned NOT NULL default '0',
 548                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 549                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 550                         page_random real unsigned NOT NULL,
 551                         page_touched char(14) binary NOT NULL default '',
 552                         page_latest int(8) unsigned NOT NULL,
 553                         page_len int(8) unsigned NOT NULL,
 554
 555                         PRIMARY KEY page_id (page_id),
 556                         UNIQUE INDEX name_title (page_namespace,page_title),
 557                         INDEX (page_random),
 558                         INDEX (page_len)
 559                         ) TYPE=InnoDB", $fname );
 560                 $wgDatabase->query("CREATE TABLE $revision (
 561                         rev_id int(8) unsigned NOT NULL auto_increment,
 562                         rev_page int(8) unsigned NOT NULL,
 563                         rev_comment tinyblob NOT NULL,
 564                         rev_user int(5) unsigned NOT NULL default '0',
 565                         rev_user_text varchar(255) binary NOT NULL default '',
 566                         rev_timestamp char(14) binary NOT NULL default '',
 567                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 568                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 569                         rev_len int(8) unsigned,
 570                         rev_parent_id int(8) unsigned default NULL,
 571                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 572                         UNIQUE INDEX rev_id (rev_id),
 573                         INDEX rev_timestamp (rev_timestamp),
 574                         INDEX page_timestamp (rev_page,rev_timestamp),
 575                         INDEX user_timestamp (rev_user,rev_timestamp),
 576                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 577                         ) TYPE=InnoDB", $fname );
 578
 579                 echo wfTimestamp( TS_DB );
 580                 echo "......Locking tables.\n";
 581                 $wgDatabase->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", $fname );
 582
 583                 $maxold = intval( $wgDatabase->selectField( 'old', 'max(old_id)', '', $fname ) );
 584                 echo wfTimestamp( TS_DB );
 585                 echo "......maxold is {$maxold}\n";
 586
 587                 echo wfTimestamp( TS_DB );
 588                 global $wgLegacySchemaConversion;
 589                 if( $wgLegacySchemaConversion ) {
 590                         // Create HistoryBlobCurStub entries.
 591                         // Text will be pulled from the leftover 'cur' table at runtime.
 592                         echo "......Moving metadata from cur; using blob references to text in cur table.\n";
 593                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 594                         $cur_flags = "'object'";
 595                 } else {
 596                         // Copy all cur text in immediately: this may take longer but avoids
 597                         // having to keep an extra table around.
 598                         echo "......Moving text from cur.\n";
 599                         $cur_text = 'cur_text';
 600                         $cur_flags = "''";
 601                 }
 602                 $wgDatabase->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 603                                 old_timestamp, old_minor_edit, old_flags)
 604                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 605                         FROM $cur", $fname );
 606
 607                 echo wfTimestamp( TS_DB );
 608                 echo "......Setting up revision table.\n";
 609                 $wgDatabase->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 610                                 rev_minor_edit)
 611                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 612                                 old_timestamp, old_minor_edit
 613                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", $fname );
 614
 615                 echo wfTimestamp( TS_DB );
 616                 echo "......Setting up page table.\n";
 617                 $wgDatabase->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 618                                 page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 619                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 620                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 621                         FROM $cur,$revision
 622                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", $fname );
 623
 624                 echo wfTimestamp( TS_DB );
 625                 echo "......Unlocking tables.\n";
 626                 $wgDatabase->query( "UNLOCK TABLES", $fname );
 627
 628                 echo wfTimestamp( TS_DB );
 629                 echo "......Renaming old.\n";
 630                 $wgDatabase->query( "ALTER TABLE $old RENAME TO $text", $fname );
 631
 632                 echo wfTimestamp( TS_DB );
 633                 echo "...done.\n";
 634         }
 635 }
 636
 637 function do_inverse_timestamp() {
 638         global $wgDatabase;
 639         if( $wgDatabase->fieldExists( 'revision', 'inverse_timestamp' ) ) {
 640                 echo "Removing revision.inverse_timestamp and fixing indexes... ";
 641                 dbsource( archive( 'patch-inverse_timestamp.sql' ), $wgDatabase );
 642                 echo "ok\n";
 643         } else {
 644                 echo "revision timestamp indexes already up to 2005-03-13\n";
 645         }
 646 }
 647
 648 function do_text_id() {
 649         global $wgDatabase;
 650         if( $wgDatabase->fieldExists( 'revision', 'rev_text_id' ) ) {
 651                 echo "...rev_text_id already in place.\n";
 652         } else {
 653                 echo "Adding rev_text_id field... ";
 654                 dbsource( archive( 'patch-rev_text_id.sql' ), $wgDatabase );
 655                 echo "ok\n";
 656         }
 657 }
 658
 659 function do_namespace_size() {
 660         $tables = array(
 661                 'page'          => 'page',
 662                 'archive'       => 'ar',
 663                 'recentchanges' => 'rc',
 664                 'watchlist'     => 'wl',
 665                 'querycache'    => 'qc',
 666                 'logging'       => 'log',
 667         );
 668         foreach( $tables as $table => $prefix ) {
 669                 do_namespace_size_on( $table, $prefix );
 670                 flush();
 671         }
 672 }
 673
 674 function do_namespace_size_on( $table, $prefix ) {
 675         global $wgDatabase, $wgDBtype;
 676         if ($wgDBtype != 'mysql')
 677                 return;
 678         $field = $prefix . '_namespace';
 679
 680         $tablename = $wgDatabase->tableName( $table );
 681         $result = $wgDatabase->query( "SHOW COLUMNS FROM $tablename LIKE '$field'" );
 682         $info = $wgDatabase->fetchObject( $result );
 683         $wgDatabase->freeResult( $result );
 684
 685         if( substr( $info->Type, 0, 3 ) == 'int' ) {
 686                 echo "...$field is already a full int ($info->Type).\n";
 687         } else {
 688                 echo "Promoting $field from $info->Type to int... ";
 689
 690                 $sql = "ALTER TABLE $tablename MODIFY $field int NOT NULL";
 691                 $wgDatabase->query( $sql );
 692
 693                 echo "ok\n";
 694         }
 695 }
 696
 697 function do_pagelinks_update() {
 698         global $wgDatabase;
 699         if( $wgDatabase->tableExists( 'pagelinks' ) ) {
 700                 echo "...already have pagelinks table.\n";
 701         } else {
 702                 echo "Converting links and brokenlinks tables to pagelinks... ";
 703                 dbsource( archive( 'patch-pagelinks.sql' ), $wgDatabase );
 704                 echo "ok\n";
 705                 flush();
 706
 707                 global $wgCanonicalNamespaceNames;
 708                 foreach( $wgCanonicalNamespaceNames as $ns => $name ) {
 709                         if( $ns != 0 ) {
 710                                 do_pagelinks_namespace( $ns );
 711                         }
 712                 }
 713         }
 714 }
 715
 716 function do_pagelinks_namespace( $namespace ) {
 717         global $wgDatabase, $wgContLang;
 718
 719         $ns = intval( $namespace );
 720         echo "Cleaning up broken links for namespace $ns... ";
 721
 722         $pagelinks = $wgDatabase->tableName( 'pagelinks' );
 723         $name = $wgContLang->getNsText( $ns );
 724         $prefix = $wgDatabase->strencode( $name );
 725         $likeprefix = str_replace( '_', '\\_', $prefix);
 726
 727         $sql = "UPDATE $pagelinks
 728                    SET pl_namespace=$ns,
 729                        pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 730                  WHERE pl_namespace=0
 731                    AND pl_title LIKE '$likeprefix:%'";
 732
 733         $wgDatabase->query( $sql, 'do_pagelinks_namespace' );
 734         echo "ok\n";
 735 }
 736
 737 function do_drop_img_type() {
 738         global $wgDatabase;
 739
 740         if( $wgDatabase->fieldExists( 'image', 'img_type' ) ) {
 741                 echo "Dropping unused img_type field in image table... ";
 742                 dbsource( archive( 'patch-drop_img_type.sql' ), $wgDatabase );
 743                 echo "ok\n";
 744         } else {
 745                 echo "No img_type field in image table; Good.\n";
 746         }
 747 }
 748
 749 function do_old_links_update() {
 750         global $wgDatabase;
 751         if( $wgDatabase->tableExists( 'pagelinks' ) ) {
 752                 echo "Already have pagelinks; skipping old links table updates.\n";
 753         } else {
 754                 convertLinks(); flush();
 755         }
 756 }
 757
 758 function do_user_unique_update() {
 759         global $wgDatabase;
 760         $duper = new UserDupes( $wgDatabase );
 761         if( $duper->hasUniqueIndex() ) {
 762                 echo "Already have unique user_name index.\n";
 763         } else {
 764                 if( !$duper->clearDupes() ) {
 765                         echo "WARNING: This next step will probably fail due to unfixed duplicates...\n";
 766                 }
 767                 echo "Adding unique index on user_name... ";
 768                 dbsource( archive( 'patch-user_nameindex.sql' ), $wgDatabase );
 769                 echo "ok\n";
 770         }
 771 }
 772
 773 function do_user_groups_update() {
 774         $fname = 'do_user_groups_update';
 775         global $wgDatabase;
 776
 777         if( $wgDatabase->tableExists( 'user_groups' ) ) {
 778                 echo "...user_groups table already exists.\n";
 779                 return do_user_groups_reformat();
 780         }
 781
 782         echo "Adding user_groups table... ";
 783         dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
 784         echo "ok\n";
 785
 786         if( !$wgDatabase->tableExists( 'user_rights' ) ) {
 787                 if( $wgDatabase->fieldExists( 'user', 'user_rights' ) ) {
 788                         echo "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion...";
 789                         dbsource( archive( 'patch-user_rights.sql' ), $wgDatabase );
 790                         echo "ok\n";
 791                 } else {
 792                         echo "*** WARNING: couldn't locate user_rights table or field for upgrade.\n";
 793                         echo "*** You may need to manually configure some sysops by manipulating\n";
 794                         echo "*** the user_groups table.\n";
 795                         return;
 796                 }
 797         }
 798
 799         echo "Converting user_rights table to user_groups... ";
 800         $result = $wgDatabase->select( 'user_rights',
 801                 array( 'ur_user', 'ur_rights' ),
 802                 array( "ur_rights != ''" ),
 803                 $fname );
 804
 805         while( $row = $wgDatabase->fetchObject( $result ) ) {
 806                 $groups = array_unique(
 807                         array_map( 'trim',
 808                                 explode( ',', $row->ur_rights ) ) );
 809
 810                 foreach( $groups as $group ) {
 811                         $wgDatabase->insert( 'user_groups',
 812                                 array(
 813                                         'ug_user'  => $row->ur_user,
 814                                         'ug_group' => $group ),
 815                                 $fname );
 816                 }
 817         }
 818         $wgDatabase->freeResult( $result );
 819         echo "ok\n";
 820 }
 821
 822 function do_user_groups_reformat() {
 823         # Check for bogus formats from previous 1.5 alpha code.
 824         global $wgDatabase;
 825         $info = $wgDatabase->fieldInfo( 'user_groups', 'ug_group' );
 826
 827         if( $info->type() == 'int' ) {
 828                 $oldug = $wgDatabase->tableName( 'user_groups' );
 829                 $newug = $wgDatabase->tableName( 'user_groups_bogus' );
 830                 echo "user_groups is in bogus intermediate format. Renaming to $newug... ";
 831                 $wgDatabase->query( "ALTER TABLE $oldug RENAME TO $newug" );
 832                 echo "ok\n";
 833
 834                 echo "Re-adding fresh user_groups table... ";
 835                 dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
 836                 echo "ok\n";
 837
 838                 echo "***\n";
 839                 echo "*** WARNING: You will need to manually fix up user permissions in the user_groups\n";
 840                 echo "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n";
 841                 echo "***\n";
 842         } else {
 843                 echo "...user_groups is in current format.\n";
 844         }
 845
 846 }
 847
 848 function do_watchlist_null() {
 849         # Make sure wl_notificationtimestamp can be NULL,
 850         # and update old broken items.
 851         global $wgDatabase;
 852         $info = $wgDatabase->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 853
 854         if( !$info->nullable() ) {
 855                 echo "Making wl_notificationtimestamp nullable... ";
 856                 dbsource( archive( 'patch-watchlist-null.sql' ), $wgDatabase );
 857                 echo "ok\n";
 858         } else {
 859                 echo "...wl_notificationtimestamp is already nullable.\n";
 860         }
 861
 862 }
 863
 864 /**
 865  * @bug 3946
 866  */
 867 function do_page_random_update() {
 868         global $wgDatabase;
 869
 870         echo "Setting page_random to a random value on rows where it equals 0...";
 871
 872         $page = $wgDatabase->tableName( 'page' );
 873         $wgDatabase->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", 'do_page_random_update' );
 874         $rows = $wgDatabase->affectedRows();
 875
 876         echo "changed $rows rows\n";
 877 }
 878
 879 function do_templatelinks_update() {
 880         global $wgDatabase, $wgLoadBalancer;
 881         $fname = 'do_templatelinks_update';
 882
 883         if ( $wgDatabase->tableExists( 'templatelinks' ) ) {
 884                 echo "...templatelinks table already exists\n";
 885                 return;
 886         }
 887         echo "Creating templatelinks table...\n";
 888         dbsource( archive('patch-templatelinks.sql'), $wgDatabase );
 889         echo "Populating...\n";
 890         if ( isset( $wgLoadBalancer ) && $wgLoadBalancer->getServerCount() > 1 ) {
 891                 // Slow, replication-friendly update
 892                 $res = $wgDatabase->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 893                         array( 'pl_namespace' => NS_TEMPLATE ), $fname );
 894                 $count = 0;
 895                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
 896                         $count = ($count + 1) % 100;
 897                         if ( $count == 0 ) {
 898                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
 899                                         wfWaitForSlaves( 10 );
 900                                 } else {
 901                                         sleep( 1 );
 902                                 }
 903                         }
 904                         $wgDatabase->insert( 'templatelinks',
 905                                 array(
 906                                         'tl_from' => $row->pl_from,
 907                                         'tl_namespace' => $row->pl_namespace,
 908                                         'tl_title' => $row->pl_title,
 909                                 ), $fname
 910                         );
 911
 912                 }
 913                 $wgDatabase->freeResult( $res );
 914         } else {
 915                 // Fast update
 916                 $wgDatabase->insertSelect( 'templatelinks', 'pagelinks',
 917                         array(
 918                                 'tl_from' => 'pl_from',
 919                                 'tl_namespace' => 'pl_namespace',
 920                                 'tl_title' => 'pl_title'
 921                         ), array(
 922                                 'pl_namespace' => 10
 923                         ), $fname
 924                 );
 925         }
 926         echo "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n";
 927 }
 928
 929 // Add index on ( rc_namespace, rc_user_text ) [Jul. 2006]
 930 // Add index on ( rc_user_text, rc_timestamp ) [Nov. 2006]
 931 function do_rc_indices_update() {
 932         global $wgDatabase;
 933         echo( "Checking for additional recent changes indices...\n" );
 934
 935         $indexes = array(
 936                 'rc_ns_usertext' => 'patch-recentchanges-utindex.sql',
 937                 'rc_user_text' => 'patch-rc_user_text-index.sql',
 938         );
 939
 940         foreach( $indexes as $index => $patch ) {
 941                 $info = $wgDatabase->indexInfo( 'recentchanges', $index, __METHOD__ );
 942                 if( !$info ) {
 943                         echo( "...index `{$index}` not found; adding..." );
 944                         dbsource( archive( $patch ) );
 945                         echo( "done.\n" );
 946                 } else {
 947                         echo( "...index `{$index}` seems ok.\n" );
 948                 }
 949         }
 950 }
 951
 952 function index_has_field($table, $index, $field) {
 953         global $wgDatabase;
 954         echo( "Checking if $table index $index includes field $field...\n" );
 955         $info = $wgDatabase->indexInfo( $table, $index, __METHOD__ );
 956         if( $info ) {
 957                 foreach($info as $row) {
 958                         if($row->Column_name == $field) {
 959                                 echo( "...index $index on table $table seems to be ok\n" );
 960                                 return true;
 961                         }
 962                 }
 963         }
 964         echo( "...index $index on table $table has no field $field; adding\n" );
 965         return false;
 966 }
 967
 968 function do_backlinking_indices_update() {
 969         echo( "Checking for backlinking indices...\n" );
 970         if (!index_has_field('pagelinks', 'pl_namespace', 'pl_from') ||
 971                 !index_has_field('templatelinks', 'tl_namespace', 'tl_from') ||
 972                 !index_has_field('imagelinks', 'il_to', 'il_from'))
 973         {
 974                 dbsource( archive( 'patch-backlinkindexes.sql' ) );
 975                 echo( "...backlinking indices updated\n" );
 976         }
 977 }
 978
 979 function do_categorylinks_indices_update() {
 980         echo( "Checking for categorylinks indices...\n" );
 981         if (!index_has_field('categorylinks', 'cl_sortkey', 'cl_from'))
 982         {
 983                 dbsource( archive( 'patch-categorylinksindex.sql' ) );
 984                 echo( "...categorylinks indices updated\n" );
 985         }
 986 }
 987
 988 function do_filearchive_indices_update() {
 989         global $wgDatabase;
 990         echo( "Checking filearchive indices...\n" );
 991         $info = $wgDatabase->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 992         if ( !$info )
 993         {
 994                 dbsource( archive( 'patch-filearhive-user-index.sql' ) );
 995                 echo( "...filearchive indices updated\n" );
 996         }
 997 }
 998
 999 function maybe_do_profiling_memory_update() {
1000         global $wgDatabase;
1001         if ( !$wgDatabase->tableExists( 'profiling' ) ) {
1002                 // Simply ignore
1003         } elseif ( $wgDatabase->fieldExists( 'profiling', 'pf_memory' ) ) {
1004                 echo "profiling table has pf_memory field.\n";
1005         } else {
1006                 echo "Adding pf_memory field to table profiling...";
1007                 dbsource( archive( 'patch-profiling-memory.sql' ), $wgDatabase );
1008                 echo "ok\n";
1009         }
1010 }
1011
1012 function do_stats_init() {
1013         // Sometimes site_stats table is not properly populated.
1014         global $wgDatabase;
1015         echo "Checking site_stats row...";
1016         $row = $wgDatabase->selectRow( 'site_stats', '*', array( 'ss_row_id' => 1 ), __METHOD__ );
1017         if( $row === false ) {
1018                 echo "data is missing! rebuilding...\n";
1019
1020                 global $IP;
1021                 require_once "$IP/maintenance/initStats.inc";
1022                 wfInitStats();
1023         } else {
1024                 echo "ok.\n";
1025         }
1026 }
1027
1028 function purge_cache() {
1029         global $wgDatabase;
1030         # We can't guarantee that the user will be able to use TRUNCATE,
1031         # but we know that DELETE is available to us
1032         echo( "Purging caches..." );
1033         $wgDatabase->delete( 'objectcache', '*', __METHOD__ );
1034         echo( "done.\n" );
1035 }
1036
1037 function do_all_updates( $shared = false, $purge = true ) {
1038         global $wgNewTables, $wgNewFields, $wgRenamedTables, $wgSharedDB, $wgDatabase, $wgDBtype, $IP;
1039
1040         wfRunHooks('LoadExtensionSchemaUpdates');
1041
1042         $doUser = !$wgSharedDB || $shared;
1043
1044         if ($wgDBtype === 'postgres') {
1045                 do_postgres_updates();
1046                 return;
1047         }
1048
1049         # Run core updates in sequence...
1050         global $wgMysqlUpdates;
1051         foreach( $wgMysqlUpdates as $params ) {
1052                 $func = array_shift( $params );
1053                 call_user_func_array( $func, $params );
1054                 flush();
1055         }
1056
1057         /// @fixme clean up this mess too!
1058         global $wgExtNewTables, $wgExtNewFields, $wgExtNewIndexes;
1059         # Add missing extension tables
1060         foreach ( $wgExtNewTables as $tableRecord ) {
1061                 add_table( $tableRecord[0], $tableRecord[1], true );
1062                 flush();
1063         }
1064         # Add missing extension fields
1065         foreach ( $wgExtNewFields as $fieldRecord ) {
1066                 if ( $fieldRecord[0] != 'user' || $doUser ) {
1067                         add_field( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1068                 }
1069                 flush();
1070         }
1071         # Add missing extension indexes
1072         foreach ( $wgExtNewIndexes as $fieldRecord ) {
1073                 add_index( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1074                 flush();
1075         }
1076
1077
1078         echo "Deleting old default messages (this may take a long time!)..."; flush();
1079         deleteDefaultMessages();
1080         echo "Done\n"; flush();
1081
1082         do_stats_init(); flush();
1083
1084         if( $purge ) {
1085                 purge_cache();
1086                 flush();
1087         }
1088 }
1089
1090 function archive($name) {
1091         global $wgDBtype, $IP;
1092         switch ($wgDBtype) {
1093         case "postgres":
1094                 return "$IP/maintenance/postgres/archives/$name";
1095         default:
1096                 return "$IP/maintenance/archives/$name";
1097         }
1098 }
1099
1100 function do_restrictions_update() {
1101         # Adding page_restrictions table, obsoleting page.page_restrictions.
1102         #  Migrating old restrictions to new table
1103         # -- Andrew Garrett, January 2007.
1104
1105         global $wgDatabase;
1106
1107         $name = 'page_restrictions';
1108         $patch = 'patch-page_restrictions.sql';
1109         $patch2 = 'patch-page_restrictions_sortkey.sql';
1110
1111         if ( $wgDatabase->tableExists( $name ) ) {
1112                 echo "...$name table already exists.\n";
1113         } else {
1114                 echo "Creating $name table...";
1115                 dbsource( archive($patch), $wgDatabase );
1116                 dbsource( archive($patch2), $wgDatabase );
1117                 echo "ok\n";
1118
1119                 echo "Migrating old restrictions to new table...";
1120
1121                 $res = $wgDatabase->select( 'page', array( 'page_id', 'page_restrictions' ), array("page_restrictions!=''", "page_restrictions!='edit=:move='"), __METHOD__ );
1122
1123                 $count = 0;
1124
1125                 while ($row = $wgDatabase->fetchObject($res) ) {
1126                         $count = ($count + 1) % 100;
1127
1128                         if ($count == 0) {
1129                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
1130                                         wfWaitForSlaves( 10 );
1131                                 } else {
1132                                         sleep( 1 );
1133                                 }
1134                         }
1135
1136                         # Figure out what the restrictions are..
1137                         $id = $row->page_id;
1138                         $flatrestrictions = explode( ':', $row->page_restrictions );
1139
1140                         $restrictions = array ();
1141                         foreach( $flatrestrictions as $restriction ) {
1142                                 $thisrestriction = explode( '=', $restriction, 2 );
1143                                 if( count( $thisrestriction ) == 1 ) {
1144                                         // Compatibility with old protections from before
1145                                         // separate move protection was added.
1146                                         list( $level ) = $thisrestriction;
1147                                         if( $level ) {
1148                                                 $restrictions['edit'] = $level;
1149                                                 $restrictions['move'] = $level;
1150                                         }
1151                                 } else {
1152                                         list( $type, $level ) = $thisrestriction;
1153                                         if( $level ) {
1154                                                 $restrictions[$type] = $level;
1155                                         }
1156                                 }
1157
1158                         $wgDatabase->update( 'page', array ( 'page_restrictions' => ''), array( 'page_id' => $id ), __METHOD__ );
1159
1160                         }
1161
1162                         foreach( $restrictions as $type => $level ) {
1163                                 $wgDatabase->insert( 'page_restrictions', array ( 'pr_page' => $id,
1164                                                                                         'pr_type' => $type,
1165                                                                                         'pr_level' => $level,
1166                                                                                         'pr_cascade' => 0,
1167                                                                                         'pr_expiry' => 'infinity' ),
1168                                                                                         __METHOD__ );
1169                         }
1170                 }
1171                 print "ok\n";
1172         }
1173 }
1174
1175 function do_category_population() {
1176         if( update_row_exists( 'populate category' ) ) {
1177                 echo "...category table already populated.\n";
1178                 return;
1179         }
1180         require_once( 'populateCategory.inc' );
1181         echo "Populating category table, printing progress markers.  ".
1182 "For large databases, you\n".
1183 "may want to hit Ctrl-C and do this manually with maintenance/\n".
1184 "populateCategory.php.\n";
1185         populateCategory( '', 10, 0, true );
1186         echo "Done populating category table.\n";
1187 }
1188
1189 function do_populate_parent_id() {
1190         if( update_row_exists( 'populate rev_parent_id' ) ) {
1191                 echo "...rev_parent_id column already populated.\n";
1192                 return;
1193         }
1194         require_once( 'populateParentId.inc' );
1195
1196         global $wgDatabase;
1197         populate_rev_parent_id( $wgDatabase );
1198 }
1199
1200 function update_password_format() {
1201         if ( update_row_exists( 'password format' ) ) {
1202                 echo "...password hash format already changed\n";
1203                 return;
1204         }
1205
1206         echo "Updating password hash format...";
1207
1208         global $wgDatabase, $wgPasswordSalt;
1209         $user = $wgDatabase->tableName( 'user' );
1210         if ( $wgPasswordSalt ) {
1211                 $sql = "UPDATE $user SET user_password=CONCAT(':B:', user_id, ':', user_password) " .
1212                         "WHERE user_password NOT LIKE ':%'";
1213         } else {
1214                 $sql = "UPDATE $user SET user_password=CONCAT(':A:', user_password) " .
1215                         "WHERE user_password NOT LIKE ':%'";
1216         }
1217         $wgDatabase->query( $sql, __METHOD__ );
1218         $wgDatabase->insert( 'updatelog', array( 'ul_key' => 'password format' ), __METHOD__ );
1219
1220         echo "done\n";
1221 }
1222
1223 function
1224 pg_describe_table($table)
1225 {
1226 global  $wgDatabase, $wgDBmwschema;
1227         $q = <<<END
1228 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
1229         WHERE pg_class.relnamespace = pg_namespace.oid
1230           AND attrelid=pg_class.oid AND attnum > 0
1231           AND relname=%s AND nspname=%s
1232 END;
1233         $res = $wgDatabase->query(sprintf($q,
1234                         $wgDatabase->addQuotes($table),
1235                         $wgDatabase->addQuotes($wgDBmwschema)));
1236         if (!$res)
1237                 return null;
1238
1239         $cols = array();
1240         while ($r = $wgDatabase->fetchRow($res)) {
1241                 $cols[] = array(
1242                                 "name" => $r[0],
1243                                 "ord" => $r[1],
1244                         );
1245         }
1246         return $cols;
1247 }
1248
1249 function
1250 pg_describe_index($idx)
1251 {
1252 global  $wgDatabase, $wgDBmwschema;
1253
1254         // first fetch the key (which is a list of columns ords) and
1255         // the table the index applies to (an oid)
1256         $q = <<<END
1257 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
1258         WHERE nspname=%s
1259           AND pg_class.relnamespace = pg_namespace.oid
1260           AND relname=%s
1261           AND indexrelid=pg_class.oid
1262 END;
1263         $res = $wgDatabase->query(sprintf($q,
1264                         $wgDatabase->addQuotes($wgDBmwschema),
1265                         $wgDatabase->addQuotes($idx)));
1266         if (!$res)
1267                 return null;
1268         if (!($r = $wgDatabase->fetchRow($res))) {
1269                 $wgDatabase->freeResult($res);
1270                 return null;
1271         }
1272
1273         $indkey = $r[0];
1274         $relid = intval($r[1]);
1275         $indkeys = explode(" ", $indkey);
1276         $wgDatabase->freeResult($res);
1277
1278         $colnames = array();
1279         foreach ($indkeys as $rid) {
1280                 $query = <<<END
1281 SELECT attname FROM pg_class, pg_attribute
1282         WHERE attrelid=$relid
1283           AND attnum=%d
1284           AND attrelid=pg_class.oid
1285 END;
1286                 $r2 = $wgDatabase->query(sprintf($query, $rid));
1287                 if (!$r2)
1288                         return null;
1289                 if (!($row2 = $wgDatabase->fetchRow($r2))) {
1290                         $wgDatabase->freeResult($r2);
1291                         return null;
1292                 }
1293                 $colnames[] = $row2[0];
1294                 $wgDatabase->freeResult($r2);
1295         }
1296
1297         return $colnames;
1298 }
1299
1300 function
1301 pg_index_exists($table, $index)
1302 {
1303 global  $wgDatabase, $wgDBmwschema;
1304         $exists = $wgDatabase->selectField("pg_indexes", "indexname",
1305                         array(  "indexname" => $index,
1306                                 "tablename" => $table,
1307                                 "schemaname" => $wgDBmwschema));
1308         return $exists === $index;
1309 }
1310
1311 function
1312 pg_fkey_deltype($fkey)
1313 {
1314 global  $wgDatabase, $wgDBmwschema;
1315         $q = <<<END
1316 SELECT confdeltype FROM pg_constraint, pg_namespace
1317         WHERE connamespace=pg_namespace.oid
1318           AND nspname=%s
1319           AND conname=%s;
1320 END;
1321         $r = $wgDatabase->query(sprintf($q,
1322                 $wgDatabase->addQuotes($wgDBmwschema),
1323                 $wgDatabase->addQuotes($fkey)));
1324         if (!($row = $wgDatabase->fetchRow($r)))
1325                 return null;
1326         return $row[0];
1327 }
1328
1329 function
1330 pg_rule_def($table, $rule)
1331 {
1332 global  $wgDatabase, $wgDBmwschema;
1333         $q = <<<END
1334 SELECT definition FROM pg_rules
1335         WHERE schemaname = %s
1336           AND tablename = %s
1337           AND rulename = %s
1338 END;
1339         $r = $wgDatabase->query(sprintf($q,
1340                         $wgDatabase->addQuotes($wgDBmwschema),
1341                         $wgDatabase->addQuotes($table),
1342                         $wgDatabase->addQuotes($rule)));
1343         $row = $wgDatabase->fetchRow($r);
1344         if (!$row)
1345                 return null;
1346         $d = $row[0];
1347         $wgDatabase->freeResult($r);
1348         return $d;
1349 }
1350
1351 function do_postgres_updates() {
1352         global $wgDatabase, $wgVersion, $wgDBmwschema, $wgDBts2schema, $wgShowExceptionDetails, $wgDBuser;
1353
1354         ## Gather version numbers in case we need them
1355         $version = $wgDatabase->getServerVersion(); ## long string
1356         $numver = $wgDatabase->numeric_version; ## X.Y e.g. 8.3
1357
1358         $wgShowExceptionDetails = 1;
1359
1360         # Just in case their LocalSettings.php does not have this:
1361         if ( !isset( $wgDBmwschema ))
1362                 $wgDBmwschema = 'mediawiki';
1363
1364         # Verify that this user is configured correctly
1365         $safeuser = $wgDatabase->addQuotes($wgDBuser);
1366         $SQL = "SELECT array_to_string(useconfig,'*') FROM pg_catalog.pg_user WHERE usename = $safeuser";
1367         $config = pg_fetch_result( $wgDatabase->doQuery( $SQL ), 0, 0 );
1368         $conf = array();
1369         foreach( explode( '*', $config ) as $c ) {
1370                 list( $x,$y ) = explode( '=', $c );
1371                 $conf[$x] = $y;
1372         }
1373         if( !array_key_exists( 'search_path', $conf ) ) {
1374                 $search_path = '';
1375         }
1376         else {
1377                 $search_path = $conf['search_path'];
1378         }
1379         if( strpos( $search_path, $wgDBmwschema ) === false ) {
1380                 echo "Adding in schema \"$wgDBmwschema\" to search_path for user \"$wgDBuser\"\n";
1381                 $search_path = "$wgDBmwschema, $search_path";
1382         }
1383         if( strpos( $search_path, $wgDBts2schema ) === false ) {
1384                 echo "Adding in schema \"$wgDBts2schema\" to search_path for user \"$wgDBuser\"\n";
1385                 $search_path = "$search_path, $wgDBts2schema";
1386         }
1387         if( array_key_exists( 'search_path', $conf ) === false || $search_path != $conf['search_path'] ) {
1388                 $wgDatabase->doQuery( "ALTER USER $wgDBuser SET search_path = $search_path" );
1389                 $wgDatabase->doQuery( "SET search_path = $search_path" );
1390         }
1391         else {
1392                 $path = $conf['search_path'];
1393                 echo "... search_path for user \"$wgDBuser\" looks correct ($path)\n";
1394         }
1395         $goodconf = array(
1396                 'client_min_messages' => 'error',
1397                 'DateStyle'           => 'ISO, YMD',
1398                 'TimeZone'            => 'GMT'
1399         );
1400         foreach( array_keys( $goodconf ) AS $key ) {
1401                 $value = $goodconf[$key];
1402                 if( !array_key_exists( $key, $conf ) or $conf[$key] !== $value ) {
1403                         echo "Setting $key to '$value' for user \"$wgDBuser\"\n";
1404                         $wgDatabase->doQuery( "ALTER USER $wgDBuser SET $key = '$value'" );
1405                         $wgDatabase->doQuery( "SET $key = '$value'" );
1406                 }
1407                 else {
1408                         echo "... default value of \"$key\" is correctly set to \"$value\" for user \"$wgDBuser\"\n";
1409                 }
1410         }
1411
1412         $newsequences = array(
1413                 "log_log_id_seq",
1414                 "pr_id_val",
1415         );
1416
1417         $newtables = array(
1418                 array("category",          "patch-category.sql"),
1419                 array("mediawiki_version", "patch-mediawiki_version.sql"),
1420                 array("mwuser",            "patch-mwuser.sql"),
1421                 array("pagecontent",       "patch-pagecontent.sql"),
1422                 array("querycachetwo",     "patch-querycachetwo.sql"),
1423                 array("page_props",        "patch-page_props.sql"),
1424                 array("page_restrictions", "patch-page_restrictions.sql"),
1425                 array("profiling",         "patch-profiling.sql"),
1426                 array("protected_titles",  "patch-protected_titles.sql"),
1427                 array("redirect",          "patch-redirect.sql"),
1428                 array("updatelog",         "patch-updatelog.sql"),
1429         );
1430
1431         $newcols = array(
1432                 array("archive",       "ar_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1433                 array("archive",       "ar_len",               "INTEGER"),
1434                 array("archive",       "ar_page_id",           "INTEGER"),
1435                 array("archive",       "ar_parent_id",         "INTEGER"),
1436                 array("image",         "img_sha1",             "TEXT NOT NULL DEFAULT ''"),
1437                 array("ipblocks",      "ipb_anon_only",        "CHAR NOT NULL DEFAULT '0'"),
1438                 array("ipblocks",      "ipb_by_text",          "TEXT NOT NULL DEFAULT ''"),
1439                 array("ipblocks",      "ipb_block_email",      "CHAR NOT NULL DEFAULT '0'"),
1440                 array("ipblocks",      "ipb_create_account",   "CHAR NOT NULL DEFAULT '1'"),
1441                 array("ipblocks",      "ipb_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1442                 array("ipblocks",      "ipb_enable_autoblock", "CHAR NOT NULL DEFAULT '1'"),
1443                 array("filearchive",   "fa_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1444                 array("logging",       "log_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1445                 array("logging",       "log_id",               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('log_log_id_seq')"),
1446                 array("logging",       "log_params",           "TEXT"),
1447                 array("mwuser",        "user_editcount",       "INTEGER"),
1448                 array("mwuser",        "user_newpass_time",    "TIMESTAMPTZ"),
1449                 array("oldimage",      "oi_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1450                 array("oldimage",      "oi_metadata",          "BYTEA NOT NULL DEFAULT ''"),
1451                 array("oldimage",      "oi_media_type",        "TEXT"),
1452                 array("oldimage",      "oi_major_mime",        "TEXT NOT NULL DEFAULT 'unknown'"),
1453                 array("oldimage",      "oi_minor_mime",        "TEXT NOT NULL DEFAULT 'unknown'"),
1454                 array("oldimage",      "oi_sha1",              "TEXT NOT NULL DEFAULT ''"),
1455                 array("page_restrictions", "pr_id",            "INTEGER NOT NULL UNIQUE DEFAULT nextval('pr_id_val')"),
1456                 array("profiling",     "pf_memory",            "NUMERIC(18,10) NOT NULL DEFAULT 0"),
1457                 array("recentchanges", "rc_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1458                 array("recentchanges", "rc_log_action",        "TEXT"),
1459         array("recentchanges", "rc_log_type",          "TEXT"),
1460         array("recentchanges", "rc_logid",             "INTEGER NOT NULL DEFAULT 0"),
1461                 array("recentchanges", "rc_new_len",           "INTEGER"),
1462                 array("recentchanges", "rc_old_len",           "INTEGER"),
1463                 array("recentchanges", "rc_params",            "TEXT"),
1464                 array("revision",      "rev_len",              "INTEGER"),
1465                 array("revision",      "rev_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1466                 array("user_newtalk",  "user_last_timestamp",  "TIMESTAMPTZ"),
1467         );
1468
1469
1470         # table, column, desired type, USING clause if needed (with new default if needed)
1471         $typechanges = array(
1472                 array("archive",      "ar_deleted",      "smallint", ""),
1473                 array("archive",      "ar_minor_edit",   "smallint", "ar_minor_edit::smallint DEFAULT 0"),
1474                 array("filearchive",  "fa_deleted",      "smallint", ""),
1475                 array("filearchive",  "fa_height",       "integer",  ""),
1476                 array("filearchive",  "fa_metadata",     "bytea",    "decode(fa_metadata,'escape')"),
1477                 array("filearchive",  "fa_size",         "integer",  ""),
1478                 array("filearchive",  "fa_width",        "integer",  ""),
1479                 array("filearchive",  "fa_storage_group","text",     ""),
1480                 array("filearchive",  "fa_storage_key",  "text",     ""),
1481                 array("image",        "img_metadata",    "bytea",    "decode(img_metadata,'escape')"),
1482                 array("image",        "img_size",        "integer",  ""),
1483                 array("image",        "img_width",       "integer",  ""),
1484                 array("image",        "img_height",      "integer",  ""),
1485                 array("interwiki",    "iw_local",        "smallint", "iw_local::smallint DEFAULT 0"),
1486                 array("interwiki",    "iw_trans",        "smallint", "iw_trans::smallint DEFAULT 0"),
1487                 array("ipblocks",     "ipb_auto",        "smallint", "ipb_auto::smallint DEFAULT 0"),
1488                 array("ipblocks",     "ipb_anon_only",   "smallint", "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0"),
1489                 array("ipblocks",     "ipb_create_account", "smallint", "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1"),
1490                 array("ipblocks",     "ipb_enable_autoblock", "smallint", "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1"),
1491                 array("ipblocks",     "ipb_block_email", "smallint", "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0"),
1492                 array("ipblocks",     "ipb_address",     "text",     "ipb_address::text"),
1493                 array("ipblocks",     "ipb_deleted",     "smallint", "ipb_deleted::smallint"),
1494                 array("math",         "math_inputhash",  "bytea",    "decode(math_inputhash,'escape')"),
1495                 array("math",         "math_outputhash", "bytea",    "decode(math_outputhash,'escape')"),
1496                 array("mwuser",       "user_token",      "text",     ""),
1497                 array("mwuser",       "user_email_token","text",     ""),
1498                 array("objectcache",  "keyname",         "text",     ""),
1499                 array("oldimage",     "oi_height",       "integer",  ""),
1500                 array("oldimage",     "oi_size",         "integer",  ""),
1501                 array("oldimage",     "oi_width",        "integer",  ""),
1502                 array("page",         "page_is_redirect","smallint", "page_is_redirect::smallint DEFAULT 0"),
1503                 array("page",         "page_is_new",     "smallint", "page_is_new::smallint DEFAULT 0"),
1504                 array("querycache",   "qc_value",        "integer",  ""),
1505                 array("querycachetwo","qcc_value",       "integer",  ""),
1506                 array("recentchanges","rc_bot",          "smallint", "rc_bot::smallint DEFAULT 0"),
1507                 array("recentchanges","rc_deleted",      "smallint", ""),
1508                 array("recentchanges","rc_minor",        "smallint", "rc_minor::smallint DEFAULT 0"),
1509                 array("recentchanges","rc_new",          "smallint", "rc_new::smallint DEFAULT 0"),
1510                 array("recentchanges","rc_type",         "smallint", "rc_type::smallint DEFAULT 0"),
1511                 array("recentchanges","rc_patrolled",    "smallint", "rc_patrolled::smallint DEFAULT 0"),
1512                 array("revision",     "rev_deleted",     "smallint", "rev_deleted::smallint DEFAULT 0"),
1513                 array("revision",     "rev_minor_edit",  "smallint", "rev_minor_edit::smallint DEFAULT 0"),
1514                 array("templatelinks","tl_namespace",    "smallint", "tl_namespace::smallint"),
1515                 array("user_newtalk", "user_ip",         "text",     "host(user_ip)"),
1516         );
1517
1518         $newindexes = array(
1519                 array("archive",       "archive_user_text", "(ar_user_text)"),
1520                 array("image",         "img_sha1",          "(img_sha1)"),
1521                 array("oldimage",      "oi_sha1",           "(oi_sha1)"),
1522                 array("revision",      "rev_text_id_idx",   "(rev_text_id)"),
1523         );
1524
1525         $newrules = array(
1526         );
1527
1528         foreach ($newsequences as $ns) {
1529                 if ($wgDatabase->sequenceExists($ns)) {
1530                         echo "... sequence \"$ns\" already exists\n";
1531                         continue;
1532                 }
1533
1534                 echo "Creating sequence \"$ns\"\n";
1535                 $wgDatabase->query("CREATE SEQUENCE $ns");
1536         }
1537
1538         foreach ($newtables as $nt) {
1539                 if ($wgDatabase->tableExists($nt[0])) {
1540                         echo "... table \"$nt[0]\" already exists\n";
1541                         continue;
1542                 }
1543
1544                 echo "Creating table \"$nt[0]\"\n";
1545                 dbsource(archive($nt[1]));
1546         }
1547
1548         ## Needed before newcols
1549         if ($wgDatabase->tableExists("archive2")) {
1550                 echo "Converting \"archive2\" back to normal archive table\n";
1551                 if ($wgDatabase->ruleExists("archive", "archive_insert")) {
1552                         echo "Dropping rule \"archive_insert\"\n";
1553                         $wgDatabase->query("DROP RULE archive_insert ON archive");
1554                 }
1555                 if ($wgDatabase->ruleExists("archive", "archive_delete")) {
1556                         echo "Dropping rule \"archive_delete\"\n";
1557                         $wgDatabase->query("DROP RULE archive_delete ON archive");
1558                 }
1559                 dbsource(archive("patch-remove-archive2.sql"));
1560         }
1561         else
1562                 echo "... obsolete table \"archive2\" does not exist\n";
1563
1564         foreach ($newcols as $nc) {
1565                 $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
1566                 if (!is_null($fi)) {
1567                         echo "... column \"$nc[0].$nc[1]\" already exists\n";
1568                         continue;
1569                 }
1570
1571                 echo "Adding column \"$nc[0].$nc[1]\"\n";
1572                 $wgDatabase->query("ALTER TABLE $nc[0] ADD $nc[1] $nc[2]");
1573         }
1574
1575         foreach ($typechanges as $tc) {
1576                 $fi = $wgDatabase->fieldInfo($tc[0], $tc[1]);
1577                 if (is_null($fi)) {
1578                         echo "... error: expected column $tc[0].$tc[1] to exist\n";
1579                         exit(1);
1580                 }
1581
1582                 if ($fi->type() === $tc[2])
1583                         echo "... column \"$tc[0].$tc[1]\" is already of type \"$tc[2]\"\n";
1584                 else {
1585                         echo "Changing column type of \"$tc[0].$tc[1]\" from \"{$fi->type()}\" to \"$tc[2]\"\n";
1586                         $sql = "ALTER TABLE $tc[0] ALTER $tc[1] TYPE $tc[2]";
1587                         if (strlen($tc[3])) {
1588                                 $default = array();
1589                                 if (preg_match( '/DEFAULT (.+)/', $tc[3], $default)) {
1590                                         $sqldef = "ALTER TABLE $tc[0] ALTER $tc[1] SET DEFAULT $default[1]";
1591                                         $wgDatabase->query($sqldef);
1592                                         $tc[3] = preg_replace( '/\s*DEFAULT .+/', '', $tc[3]);
1593                                 }
1594                                 $sql .= " USING $tc[3]";
1595                         }
1596                         $sql .= ";\nCOMMIT;\n";
1597                         $wgDatabase->query($sql);
1598                 }
1599         }
1600
1601         if ($wgDatabase->fieldInfo('oldimage','oi_deleted')->type() !== 'smallint') {
1602                 echo "Changing \"oldimage.oi_deleted\" to type \"smallint\"\n";
1603                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
1604                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
1605                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
1606         }
1607         else
1608                 echo "... column \"oldimage.oi_deleted\" is already of type \"smallint\"\n";
1609
1610
1611         foreach ($newindexes as $ni) {
1612                 if (pg_index_exists($ni[0], $ni[1])) {
1613                         echo "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n";
1614                         continue;
1615                 }
1616                 echo "Creating index \"$ni[1]\" on table \"$ni[0]\" $ni[2]\n";
1617                 $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
1618         }
1619
1620         foreach ($newrules as $nr) {
1621                 if ($wgDatabase->ruleExists($nr[0], $nr[1])) {
1622                         echo "... rule \"$nr[1]\" on table \"$nr[0]\" already exists\n";
1623                         continue;
1624                 }
1625                 echo "Adding rule \"$nr[1]\" to table \"$nr[0]\"\n";
1626                 dbsource(archive($nr[2]));
1627         }
1628
1629         if ($wgDatabase->hasConstraint("oldimage_oi_name_fkey")) {
1630                 echo "Making foriegn key on table \"oldimage\" (to image) a cascade delete\n";
1631                 $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
1632                 $wgDatabase->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascade ".
1633                         "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE" );
1634         }
1635         else
1636                 echo "... table \"oldimage\" has correct cascade delete foreign key to image\n";
1637
1638         if (!$wgDatabase->triggerExists("page", "page_deleted")) {
1639                 echo "Adding function and trigger \"page_deleted\" to table \"page\"\n";
1640                 dbsource(archive('patch-page_deleted.sql'));
1641         }
1642         else
1643                 echo "... table \"page\" has \"page_deleted\" trigger\n";
1644
1645         $fi = $wgDatabase->fieldInfo("recentchanges", "rc_cur_id");
1646         if (!$fi->nullable()) {
1647                 echo "Removing NOT NULL constraint from \"recentchanges.rc_cur_id\"\n";
1648                 dbsource(archive('patch-rc_cur_id-not-null.sql'));
1649         }
1650         else
1651                 echo "... column \"recentchanges.rc_cur_id\" has a NOT NULL constraint\n";
1652
1653         $pu = pg_describe_index("pagelink_unique");
1654         if (!is_null($pu) && ($pu[0] != "pl_from" || $pu[1] != "pl_namespace" || $pu[2] != "pl_title")) {
1655                 echo "Dropping obsolete version of index \"pagelink_unique index\"\n";
1656                 $wgDatabase->query("DROP INDEX pagelink_unique");
1657                 $pu = null;
1658         }
1659         else
1660                 echo "... obsolete version of index \"pagelink_unique index\" does not exist\n";
1661
1662         if (is_null($pu)) {
1663                 echo "Creating index \"pagelink_unique index\"\n";
1664                 $wgDatabase->query("CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)");
1665         }
1666         else
1667                 echo "... index \"pagelink_unique_index\" aready exists\n";
1668
1669         if (pg_fkey_deltype("revision_rev_user_fkey") == 'r') {
1670                 echo "... constraint \"revision_rev_user_fkey\" is ON DELETE RESTRICT\n";
1671         }
1672         else {
1673                 echo "Changing constraint \"revision_rev_user_fkey\" to ON DELETE RESTRICT\n";
1674                 dbsource(archive('patch-revision_rev_user_fkey.sql'));
1675         }
1676
1677         global $wgExtNewTables, $wgExtPGNewFields, $wgExtNewIndexes;
1678         # Add missing extension tables
1679         foreach ( $wgExtNewTables as $nt ) {
1680                 if ($wgDatabase->tableExists($nt[0])) {
1681                         echo "... table \"$nt[0]\" already exists\n";
1682                         continue;
1683                 }
1684                 echo "Creating table \"$nt[0]\"\n";
1685                 dbsource($nt[1]);
1686         }
1687         # Add missing extension fields
1688         foreach ( $wgExtPGNewFields as $nc ) {
1689                 $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
1690                 if (!is_null($fi)) {
1691                         echo "... column \"$nc[0].$nc[1]\" already exists\n";
1692                         continue;
1693                 }
1694                 echo "Adding column \"$nc[0].$nc[1]\"\n";
1695                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1696         }
1697         # Add missing extension indexes
1698         foreach ( $wgExtNewIndexes as $ni ) {
1699                 if (pg_index_exists($ni[0], $ni[1])) {
1700                         echo "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n";
1701                         continue;
1702                 }
1703                 echo "Creating index \"$ni[1]\" on table \"$ni[0]\"\n";
1704                 dbsource($ni[2]);
1705         }
1706
1707         # Tweak the page_title tsearch2 trigger to filter out slashes
1708         # This is create or replace, so harmless to call if not needed
1709         dbsource(archive('patch-ts2pagetitle.sql'));
1710
1711         ## If the server is 8.3 or higher, rewrite teh tsearch2 triggers
1712         ## in case they have the old 'default' versions
1713         if ( $numver >= 8.3 )
1714                 dbsource(archive('patch-tsearch2funcs.sql'));
1715
1716         return;
1717 }
1718