maintenance/updaters.inc

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