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