maintenance/updaters.inc

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup Maintenance
   5  */
   6
   7 if ( !defined( 'MEDIAWIKI' ) ) {
   8         echo "This file is not a valid entry point\n";
   9         exit( 1 );
  10 }
  11
  12 require_once 'convertLinks.inc';
  13 require_once 'userDupes.inc';
  14 # Extension updates
  15 require_once( "$IP/includes/Hooks.php" );
  16
  17 /**
  18  * @deprecated. Do not use, ever.
  19  */
  20 $wgUpdates = array();
  21
  22
  23 # For extensions only, should be populated via hooks
  24 # $wgDBtype should be checked to specifiy the proper file
  25 $wgExtNewTables = array(); // table, dir
  26 $wgExtNewFields = array(); // table, column, dir
  27 $wgExtPGNewFields = array(); // table, column, column attributes; for PostgreSQL
  28 $wgExtPGAlteredFields = array(); // table, column, new type, conversion method; for PostgreSQL
  29 $wgExtNewIndexes = array(); // table, index, dir
  30 $wgExtModifiedFields = array(); // table, index, dir
  31
  32 # Helper function: check if the given key is present in the updatelog table.
  33 # Obviously, only use this for updates that occur after the updatelog table was
  34 # created!
  35 function update_row_exists( $key ) {
  36         $dbr = wfGetDB( DB_SLAVE );
  37         $row = $dbr->selectRow(
  38                 'updatelog',
  39                 '1',
  40                 array( 'ul_key' => $key ),
  41                 __FUNCTION__
  42         );
  43         return (bool)$row;
  44 }
  45
  46 function add_table( $name, $patch, $fullpath = false ) {
  47         global $wgDatabase;
  48         if ( $wgDatabase->tableExists( $name ) ) {
  49                 wfOut( "...$name table already exists.\n" );
  50         } else {
  51                 wfOut( "Creating $name table..." );
  52                 if ( $fullpath ) {
  53                         $wgDatabase->sourceFile( $patch );
  54                 } else {
  55                         $wgDatabase->sourceFile( archive( $patch ) );
  56                 }
  57                 wfOut( "ok\n" );
  58         }
  59 }
  60
  61 function modify_field( $table, $field, $patch, $fullpath = false ) {
  62         global $wgDatabase;
  63         if ( !$wgDatabase->tableExists( $table ) ) {
  64                 wfOut( "...$table table does not exist, skipping modify field patch\n" );
  65         } elseif ( ! $wgDatabase->fieldExists( $table, $field ) ) {
  66                 wfOut( "...$field field does not exist in $table table, skipping modify field patch\n" );
  67         } else {
  68                 wfOut( "Modifying $field field of table $table..." );
  69                 if ( $fullpath ) {
  70                         $wgDatabase->sourceFile( $patch );
  71                 } else {
  72                         $wgDatabase->sourceFile( archive( $patch ) );
  73                 }
  74                 wfOut( "ok\n" );
  75         }
  76 }
  77
  78 function add_field( $table, $field, $patch, $fullpath = false ) {
  79         global $wgDatabase;
  80         if ( !$wgDatabase->tableExists( $table ) ) {
  81                 wfOut( "...$table table does not exist, skipping new field patch\n" );
  82         } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
  83                 wfOut( "...have $field field in $table table.\n" );
  84         } else {
  85                 wfOut( "Adding $field field to table $table..." );
  86                 if ( $fullpath ) {
  87                         $wgDatabase->sourceFile( $patch );
  88                 } else {
  89                         $wgDatabase->sourceFile( archive( $patch ) );
  90                 }
  91                 wfOut( "ok\n" );
  92         }
  93 }
  94
  95 function add_index( $table, $index, $patch, $fullpath = false ) {
  96         global $wgDatabase;
  97         if ( $wgDatabase->indexExists( $table, $index ) ) {
  98                 wfOut( "...$index key already set on $table table.\n" );
  99         } else {
 100                 wfOut( "Adding $index key to table $table... " );
 101                 if ( $fullpath ) {
 102                         $wgDatabase->sourceFile( $patch );
 103                 } else {
 104                         $wgDatabase->sourceFile( archive( $patch ) );
 105                 }
 106                 wfOut( "ok\n" );
 107         }
 108 }
 109
 110 function drop_index_if_exists( $table, $index, $patch, $fullpath = false ) {
 111         global $wgDatabase;
 112         if ( $wgDatabase->indexExists( $table, $index ) ) {
 113                 wfOut( "Dropping $index from table $table... " );
 114                 if ( $fullpath ) {
 115                         $wgDatabase->sourceFile( $patch );
 116                 } else {
 117                         $wgDatabase->sourceFile( archive( $patch ) );
 118                 }
 119                 wfOut( "ok\n" );
 120         } else {
 121                 wfOut( "...$index doesn't exist.\n" );
 122         }
 123 }
 124
 125 function do_interwiki_update() {
 126         # Check that interwiki table exists; if it doesn't source it
 127         global $wgDatabase, $IP;
 128         if ( $wgDatabase->tableExists( "interwiki" ) ) {
 129                 wfOut( "...already have interwiki table\n" );
 130                 return true;
 131         }
 132         wfOut( "Creating interwiki table: " );
 133         $wgDatabase->sourceFile( archive( "patch-interwiki.sql" ) );
 134         wfOut( "ok\n" );
 135         wfOut( "Adding default interwiki definitions: " );
 136         $wgDatabase->sourceFile( "$IP/maintenance/interwiki.sql" );
 137         wfOut( "ok\n" );
 138 }
 139
 140 function do_index_update() {
 141         # Check that proper indexes are in place
 142         global $wgDatabase;
 143         $meta = $wgDatabase->fieldInfo( "recentchanges", "rc_timestamp" );
 144         if ( !$meta->isMultipleKey() ) {
 145                 wfOut( "Updating indexes to 20031107: " );
 146                 $wgDatabase->sourceFile( archive( "patch-indexes.sql" ) );
 147                 wfOut( "ok\n" );
 148                 return true;
 149         }
 150         wfOut( "...indexes seem up to 20031107 standards\n" );
 151         return false;
 152 }
 153
 154 function do_image_index_update() {
 155         global $wgDatabase;
 156
 157         $meta = $wgDatabase->fieldInfo( "image", "img_major_mime" );
 158         if ( !$meta->isMultipleKey() ) {
 159                 wfOut( "Updating indexes to 20050912: " );
 160                 $wgDatabase->sourceFile( archive( "patch-mimesearch-indexes.sql" ) );
 161                 wfOut( "ok\n" );
 162                 return true;
 163         }
 164         wfOut( "...indexes seem up to 20050912 standards\n" );
 165         return false;
 166 }
 167
 168 function do_image_name_unique_update() {
 169         global $wgDatabase;
 170         if ( $wgDatabase->indexExists( 'image', 'PRIMARY' ) ) {
 171                 wfOut( "...image primary key already set.\n" );
 172         } else {
 173                 wfOut( "Making img_name the primary key... " );
 174                 $wgDatabase->sourceFile( archive( "patch-image_name_primary.sql" ) );
 175                 wfOut( "ok\n" );
 176         }
 177 }
 178
 179 function do_logging_timestamp_index() {
 180         global $wgDatabase;
 181         if ( $wgDatabase->indexExists( 'logging', 'times' ) ) {
 182                 wfOut( "...timestamp key on logging already exists.\n" );
 183         } else {
 184                 wfOut( "Adding timestamp key on logging table... " );
 185                 $wgDatabase->sourceFile( archive( "patch-logging-times-index.sql" ) );
 186                 wfOut( "ok\n" );
 187         }
 188 }
 189
 190 function do_archive_user_index() {
 191         global $wgDatabase;
 192         if ( $wgDatabase->indexExists( 'archive', 'usertext_timestamp' ) ) {
 193                 wfOut( "...usertext,timestamp key on archive already exists.\n" );
 194         } else {
 195                 wfOut( "Adding usertext,timestamp key on archive table... " );
 196                 $wgDatabase->sourceFile( archive( "patch-archive-user-index.sql" ) );
 197                 wfOut( "ok\n" );
 198         }
 199 }
 200
 201 function do_image_user_index() {
 202         global $wgDatabase;
 203         if ( $wgDatabase->indexExists( 'image', 'img_usertext_timestamp' ) ) {
 204                 wfOut( "...usertext,timestamp key on image already exists.\n" );
 205         } else {
 206                 wfOut( "Adding usertext,timestamp key on image table... " );
 207                 $wgDatabase->sourceFile( archive( "patch-image-user-index.sql" ) );
 208                 wfOut( "ok\n" );
 209         }
 210 }
 211
 212 function do_oldimage_user_index() {
 213         global $wgDatabase;
 214         if ( $wgDatabase->indexExists( 'oldimage', 'oi_usertext_timestamp' ) ) {
 215                 wfOut( "...usertext,timestamp key on oldimage already exists.\n" );
 216         } else {
 217                 wfOut( "Adding usertext,timestamp key on oldimage table... " );
 218                 $wgDatabase->sourceFile( archive( "patch-oldimage-user-index.sql" ) );
 219                 wfOut( "ok\n" );
 220         }
 221 }
 222
 223 function do_watchlist_update() {
 224         global $wgDatabase;
 225         $fname = 'do_watchlist_update';
 226         if ( $wgDatabase->fieldExists( 'watchlist', 'wl_notificationtimestamp' ) ) {
 227                 wfOut( "...the watchlist table is already set up for email notification.\n" );
 228         } else {
 229                 wfOut( "Adding wl_notificationtimestamp field for email notification management." );
 230                 /* ALTER TABLE watchlist ADD (wl_notificationtimestamp varchar(14) binary NOT NULL default '0'); */
 231                 $wgDatabase->sourceFile( archive( 'patch-email-notification.sql' ) );
 232                 wfOut( "ok\n" );
 233         }
 234         # Check if we need to add talk page rows to the watchlist
 235         $talk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', $fname );
 236         $nontalk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', $fname );
 237         if ( $talk != $nontalk ) {
 238                 wfOut( "Adding missing watchlist talk page rows... " );
 239                 flush();
 240
 241                 $wgDatabase->insertSelect( 'watchlist', 'watchlist',
 242                         array(
 243                                 'wl_user' => 'wl_user',
 244                                 'wl_namespace' => 'wl_namespace | 1',
 245                                 'wl_title' => 'wl_title',
 246                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 247                         ), array( 'NOT (wl_namespace & 1)' ), $fname, 'IGNORE' );
 248                 wfOut( "ok\n" );
 249         } else {
 250                 wfOut( "...watchlist talk page rows already present\n" );
 251         }
 252 }
 253
 254 function do_copy_newtalk_to_watchlist() {
 255         global $wgDatabase;
 256
 257         $res = $wgDatabase->safeQuery( 'SELECT user_id, user_ip FROM !',
 258                 $wgDatabase->tableName( 'user_newtalk' ) );
 259         $num_newtalks = $wgDatabase->numRows( $res );
 260         wfOut( "Now converting $num_newtalks user_newtalk entries to watchlist table entries ... \n" );
 261
 262         $user = new User();
 263         for ( $i = 1; $i <= $num_newtalks; $i++ ) {
 264                 $wluser = $wgDatabase->fetchObject( $res );
 265                 if ( $wluser->user_id == 0 ) { # anonymous users ... have IP numbers as "names"
 266                         if ( $user->isIP( $wluser->user_ip ) ) { # do only if it really looks like an IP number (double checked)
 267                                 $wgDatabase->replace( 'watchlist',
 268                                         array( array( 'wl_user', 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ) ),
 269                                         array( 'wl_user' => 0,
 270                                                 'wl_namespace' => NS_USER_TALK,
 271                                                 'wl_title' => $wluser->user_ip,
 272                                                 'wl_notificationtimestamp' => '19700101000000'
 273                                                 ), 'updaters.inc::do_watchlist_update2'
 274                                         );
 275                         }
 276                 } else { # normal users ... have user_ids
 277                         $user->setID( $wluser->user_id );
 278                         $wgDatabase->replace( 'watchlist',
 279                                 array( array( 'wl_user', 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ) ),
 280                                 array( 'wl_user' => $user->getID(),
 281                                         'wl_namespace' => NS_USER_TALK,
 282                                         'wl_title' => $user->getName(),
 283                                         'wl_notificationtimestamp' => '19700101000000'
 284                                         ), 'updaters.inc::do_watchlist_update3'
 285                                 );
 286                 }
 287         }
 288         wfOut( "Done.\n" );
 289 }
 290
 291 function do_user_update() {
 292         global $wgDatabase;
 293         if ( $wgDatabase->fieldExists( 'user', 'user_emailauthenticationtimestamp' ) ) {
 294                 wfOut( "User table contains old email authentication field. Dropping... " );
 295                 $wgDatabase->sourceFile( archive( 'patch-email-authentication.sql' ) );
 296                 wfOut( "ok\n" );
 297         } else {
 298                 wfOut( "...user table does not contain old email authentication field.\n" );
 299         }
 300 }
 301
 302 /**
 303  * 1.4 betas were missing the 'binary' marker from logging.log_title,
 304  * which causes a collation mismatch error on joins in MySQL 4.1.
 305  */
 306 function check_bin( $table, $field, $patchFile ) {
 307         global $wgDatabase, $wgDBtype;
 308         if ( $wgDBtype != 'mysql' )
 309                 return;
 310         $tableName = $wgDatabase->tableName( $table );
 311         $res = $wgDatabase->query( "SELECT $field FROM $tableName LIMIT 0" );
 312         $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 313
 314         if ( in_array( 'binary', $flags ) ) {
 315                 wfOut( "...$table table has correct $field encoding.\n" );
 316         } else {
 317                 wfOut( "Fixing $field encoding on $table table... " );
 318                 $wgDatabase->sourceFile( archive( $patchFile ) );
 319                 wfOut( "ok\n" );
 320         }
 321 }
 322
 323 function do_schema_restructuring() {
 324         global $wgDatabase;
 325         $fname = "do_schema_restructuring";
 326         if ( $wgDatabase->tableExists( 'page' ) ) {
 327                 wfOut( "...page table already exists.\n" );
 328         } else {
 329                 wfOut( "...converting from cur/old to page/revision/text DB structure.\n" );
 330                 wfOut( wfTimestamp( TS_DB ) );
 331                 wfOut( "......checking for duplicate entries.\n" );
 332
 333                 list ( $cur, $old, $page, $revision, $text ) = $wgDatabase->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 334
 335                 $rows = $wgDatabase->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 336                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", $fname );
 337
 338                 if ( $wgDatabase->numRows( $rows ) > 0 ) {
 339                         wfOut( wfTimestamp( TS_DB ) );
 340                         wfOut( "......<b>Found duplicate entries</b>\n" );
 341                         wfOut( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 342                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 343                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 344                                         $duplicate[$row->cur_namespace] = array();
 345                                 }
 346                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 347                                 wfOut( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 348                         }
 349                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 350                         $firstCond = true;
 351                         foreach ( $duplicate as $ns => $titles ) {
 352                                 if ( $firstCond ) {
 353                                         $firstCond = false;
 354                                 } else {
 355                                         $sql .= ' OR ';
 356                                 }
 357                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 358                                 $first = true;
 359                                 foreach ( $titles as $t ) {
 360                                         if ( $first ) {
 361                                                 $sql .= $wgDatabase->addQuotes( $t );
 362                                                 $first = false;
 363                                         } else {
 364                                                 $sql .= ', ' . $wgDatabase->addQuotes( $t );
 365                                         }
 366                                 }
 367                                 $sql .= ") ) \n";
 368                         }
 369                         # By sorting descending, the most recent entry will be the first in the list.
 370                         # All following entries will be deleted by the next while-loop.
 371                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 372
 373                         $rows = $wgDatabase->query( $sql, $fname );
 374
 375                         $prev_title = $prev_namespace = false;
 376                         $deleteId = array();
 377
 378                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 379                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 380                                         $deleteId[] = $row->cur_id;
 381                                 }
 382                                 $prev_title     = $row->cur_title;
 383                                 $prev_namespace = $row->cur_namespace;
 384                         }
 385                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 386                         $rows = $wgDatabase->query( $sql, $fname );
 387                         wfOut( wfTimestamp( TS_DB ) );
 388                         wfOut( "......<b>Deleted</b> " . $wgDatabase->affectedRows() . " records.\n" );
 389                 }
 390
 391
 392                 wfOut( wfTimestamp( TS_DB ) );
 393                 wfOut( "......Creating tables.\n" );
 394                 $wgDatabase->query( "CREATE TABLE $page (
 395                         page_id int(8) unsigned NOT NULL auto_increment,
 396                         page_namespace int NOT NULL,
 397                         page_title varchar(255) binary NOT NULL,
 398                         page_restrictions tinyblob NOT NULL,
 399                         page_counter bigint(20) unsigned NOT NULL default '0',
 400                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 401                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 402                         page_random real unsigned NOT NULL,
 403                         page_touched char(14) binary NOT NULL default '',
 404                         page_latest int(8) unsigned NOT NULL,
 405                         page_len int(8) unsigned NOT NULL,
 406
 407                         PRIMARY KEY page_id (page_id),
 408                         UNIQUE INDEX name_title (page_namespace,page_title),
 409                         INDEX (page_random),
 410                         INDEX (page_len)
 411                         ) ENGINE=InnoDB", $fname );
 412                 $wgDatabase->query( "CREATE TABLE $revision (
 413                         rev_id int(8) unsigned NOT NULL auto_increment,
 414                         rev_page int(8) unsigned NOT NULL,
 415                         rev_comment tinyblob NOT NULL,
 416                         rev_user int(5) unsigned NOT NULL default '0',
 417                         rev_user_text varchar(255) binary NOT NULL default '',
 418                         rev_timestamp char(14) binary NOT NULL default '',
 419                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 420                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 421                         rev_len int(8) unsigned,
 422                         rev_parent_id int(8) unsigned default NULL,
 423                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 424                         UNIQUE INDEX rev_id (rev_id),
 425                         INDEX rev_timestamp (rev_timestamp),
 426                         INDEX page_timestamp (rev_page,rev_timestamp),
 427                         INDEX user_timestamp (rev_user,rev_timestamp),
 428                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 429                         ) ENGINE=InnoDB", $fname );
 430
 431                 wfOut( wfTimestamp( TS_DB ) );
 432                 wfOut( "......Locking tables.\n" );
 433                 $wgDatabase->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", $fname );
 434
 435                 $maxold = intval( $wgDatabase->selectField( 'old', 'max(old_id)', '', $fname ) );
 436                 wfOut( wfTimestamp( TS_DB ) );
 437                 wfOut( "......maxold is {$maxold}\n" );
 438
 439                 wfOut( wfTimestamp( TS_DB ) );
 440                 global $wgLegacySchemaConversion;
 441                 if ( $wgLegacySchemaConversion ) {
 442                         // Create HistoryBlobCurStub entries.
 443                         // Text will be pulled from the leftover 'cur' table at runtime.
 444                         wfOut( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 445                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 446                         $cur_flags = "'object'";
 447                 } else {
 448                         // Copy all cur text in immediately: this may take longer but avoids
 449                         // having to keep an extra table around.
 450                         wfOut( "......Moving text from cur.\n" );
 451                         $cur_text = 'cur_text';
 452                         $cur_flags = "''";
 453                 }
 454                 $wgDatabase->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 455                                         old_timestamp, old_minor_edit, old_flags)
 456                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 457                         FROM $cur", $fname );
 458
 459                 wfOut( wfTimestamp( TS_DB ) );
 460                 wfOut( "......Setting up revision table.\n" );
 461                 $wgDatabase->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 462                                 rev_minor_edit)
 463                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 464                                 old_timestamp, old_minor_edit
 465                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", $fname );
 466
 467                 wfOut( wfTimestamp( TS_DB ) );
 468                 wfOut( "......Setting up page table.\n" );
 469                 $wgDatabase->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 470                         page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 471                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 472                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 473                         FROM $cur,$revision
 474                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", $fname );
 475
 476                 wfOut( wfTimestamp( TS_DB ) );
 477                 wfOut( "......Unlocking tables.\n" );
 478                 $wgDatabase->query( "UNLOCK TABLES", $fname );
 479
 480                 wfOut( wfTimestamp( TS_DB ) );
 481                 wfOut( "......Renaming old.\n" );
 482                 $wgDatabase->query( "ALTER TABLE $old RENAME TO $text", $fname );
 483
 484                 wfOut( wfTimestamp( TS_DB ) );
 485                 wfOut( "...done.\n" );
 486         }
 487 }
 488
 489 function do_inverse_timestamp() {
 490         global $wgDatabase;
 491         if ( $wgDatabase->fieldExists( 'revision', 'inverse_timestamp' ) ) {
 492                 wfOut( "Removing revision.inverse_timestamp and fixing indexes... " );
 493                 $wgDatabase->sourceFile( archive( 'patch-inverse_timestamp.sql' ) );
 494                 wfOut( "ok\n" );
 495         } else {
 496                 wfOut( "...revision timestamp indexes already up to 2005-03-13\n" );
 497         }
 498 }
 499
 500 function do_text_id() {
 501         global $wgDatabase;
 502         if ( $wgDatabase->fieldExists( 'revision', 'rev_text_id' ) ) {
 503                 wfOut( "...rev_text_id already in place.\n" );
 504         } else {
 505                 wfOut( "Adding rev_text_id field... " );
 506                 $wgDatabase->sourceFile( archive( 'patch-rev_text_id.sql' ) );
 507                 wfOut( "ok\n" );
 508         }
 509 }
 510
 511 function do_namespace_size() {
 512         $tables = array(
 513                 'page'          => 'page',
 514                 'archive'       => 'ar',
 515                 'recentchanges' => 'rc',
 516                 'watchlist'     => 'wl',
 517                 'querycache'    => 'qc',
 518                 'logging'       => 'log',
 519         );
 520         foreach ( $tables as $table => $prefix ) {
 521                 do_namespace_size_on( $table, $prefix );
 522                 flush();
 523         }
 524 }
 525
 526 function do_namespace_size_on( $table, $prefix ) {
 527         global $wgDatabase, $wgDBtype;
 528         if ( $wgDBtype != 'mysql' )
 529                 return;
 530         $field = $prefix . '_namespace';
 531
 532         $tablename = $wgDatabase->tableName( $table );
 533         $result = $wgDatabase->query( "SHOW COLUMNS FROM $tablename LIKE '$field'" );
 534         $info = $wgDatabase->fetchObject( $result );
 535
 536         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 537                 wfOut( "...$field is already a full int ($info->Type).\n" );
 538         } else {
 539                 wfOut( "Promoting $field from $info->Type to int... " );
 540
 541                 $sql = "ALTER TABLE $tablename MODIFY $field int NOT NULL";
 542                 $wgDatabase->query( $sql );
 543
 544                 wfOut( "ok\n" );
 545         }
 546 }
 547
 548 function do_pagelinks_update() {
 549         global $wgDatabase;
 550         if ( $wgDatabase->tableExists( 'pagelinks' ) ) {
 551                 wfOut( "...already have pagelinks table.\n" );
 552         } else {
 553                 wfOut( "Converting links and brokenlinks tables to pagelinks... " );
 554                 $wgDatabase->sourceFile( archive( 'patch-pagelinks.sql' ) );
 555                 wfOut( "ok\n" );
 556                 flush();
 557
 558                 global $wgCanonicalNamespaceNames;
 559                 foreach ( $wgCanonicalNamespaceNames as $ns => $name ) {
 560                         if ( $ns != 0 ) {
 561                                 do_pagelinks_namespace( $ns );
 562                         }
 563                 }
 564         }
 565 }
 566
 567 function do_pagelinks_namespace( $namespace ) {
 568         global $wgDatabase, $wgContLang;
 569
 570         $ns = intval( $namespace );
 571         wfOut( "Cleaning up broken links for namespace $ns... " );
 572
 573         $pagelinks = $wgDatabase->tableName( 'pagelinks' );
 574         $name = $wgContLang->getNsText( $ns );
 575         $prefix = $wgDatabase->strencode( $name );
 576         $likeprefix = str_replace( '_', '\\_', $prefix );
 577
 578         $sql = "UPDATE $pagelinks
 579                    SET pl_namespace=$ns,
 580                        pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 581                  WHERE pl_namespace=0
 582                    AND pl_title LIKE '$likeprefix:%'";
 583
 584         $wgDatabase->query( $sql, 'do_pagelinks_namespace' );
 585         wfOut( "ok\n" );
 586 }
 587
 588 function do_drop_img_type() {
 589         global $wgDatabase;
 590
 591         if ( $wgDatabase->fieldExists( 'image', 'img_type' ) ) {
 592                 wfOut( "Dropping unused img_type field in image table... " );
 593                 $wgDatabase->sourceFile( archive( 'patch-drop_img_type.sql' ) );
 594                 wfOut( "ok\n" );
 595         } else {
 596                 wfOut( "...no img_type field in image table; Good.\n" );
 597         }
 598 }
 599
 600 function do_old_links_update() {
 601         global $wgDatabase;
 602         if ( $wgDatabase->tableExists( 'pagelinks' ) ) {
 603                 wfOut( "...have pagelinks; skipping old links table updates.\n" );
 604         } else {
 605                 convertLinks(); flush();
 606         }
 607 }
 608
 609 function fix_ancient_imagelinks() {
 610         global $wgDatabase;
 611         $info = $wgDatabase->fieldInfo( 'imagelinks', 'il_from' );
 612         if ( $info && $info->type() === 'string' ) {
 613                 wfOut( "Fixing ancient broken imagelinks table.\n" );
 614                 wfOut( "NOTE: you will have to run maintenance/refreshLinks.php after this.\n" );
 615                 $wgDatabase->sourceFile( archive( 'patch-fix-il_from.sql' ) );
 616                 wfOut( "ok\n" );
 617         } else {
 618                 wfOut( "...il_from OK\n" );
 619         }
 620 }
 621
 622 function do_user_unique_update() {
 623         global $wgDatabase;
 624         $duper = new UserDupes( $wgDatabase );
 625         if ( $duper->hasUniqueIndex() ) {
 626                 wfOut( "...already have unique user_name index.\n" );
 627         } else {
 628                 if ( !$duper->clearDupes() ) {
 629                         wfOut( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 630                 }
 631                 wfOut( "Adding unique index on user_name... " );
 632                 $wgDatabase->sourceFile( archive( 'patch-user_nameindex.sql' ) );
 633                 wfOut( "ok\n" );
 634         }
 635 }
 636
 637 function do_user_groups_update() {
 638         $fname = 'do_user_groups_update';
 639         global $wgDatabase;
 640
 641         if ( $wgDatabase->tableExists( 'user_groups' ) ) {
 642                 wfOut( "...user_groups table already exists.\n" );
 643                 return do_user_groups_reformat();
 644         }
 645
 646         wfOut( "Adding user_groups table... " );
 647         $wgDatabase->sourceFile( archive( 'patch-user_groups.sql' ) );
 648         wfOut( "ok\n" );
 649
 650         if ( !$wgDatabase->tableExists( 'user_rights' ) ) {
 651                 if ( $wgDatabase->fieldExists( 'user', 'user_rights' ) ) {
 652                         wfOut( "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion..." );
 653                         $wgDatabase->sourceFile( archive( 'patch-user_rights.sql' ) );
 654                         wfOut( "ok\n" );
 655                 } else {
 656                         wfOut( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 657                         wfOut( "*** You may need to manually configure some sysops by manipulating\n" );
 658                         wfOut( "*** the user_groups table.\n" );
 659                         return;
 660                 }
 661         }
 662
 663         wfOut( "Converting user_rights table to user_groups... " );
 664         $result = $wgDatabase->select( 'user_rights',
 665                 array( 'ur_user', 'ur_rights' ),
 666                 array( "ur_rights != ''" ),
 667                 $fname );
 668
 669         while ( $row = $wgDatabase->fetchObject( $result ) ) {
 670                 $groups = array_unique(
 671                         array_map( 'trim',
 672                                 explode( ',', $row->ur_rights ) ) );
 673
 674                 foreach ( $groups as $group ) {
 675                         $wgDatabase->insert( 'user_groups',
 676                                 array(
 677                                         'ug_user'  => $row->ur_user,
 678                                         'ug_group' => $group ),
 679                                 $fname );
 680                 }
 681         }
 682         wfOut( "ok\n" );
 683 }
 684
 685 function do_user_groups_reformat() {
 686         # Check for bogus formats from previous 1.5 alpha code.
 687         global $wgDatabase;
 688         $info = $wgDatabase->fieldInfo( 'user_groups', 'ug_group' );
 689
 690         if ( $info->type() == 'int' ) {
 691                 $oldug = $wgDatabase->tableName( 'user_groups' );
 692                 $newug = $wgDatabase->tableName( 'user_groups_bogus' );
 693                 wfOut( "user_groups is in bogus intermediate format. Renaming to $newug... " );
 694                 $wgDatabase->query( "ALTER TABLE $oldug RENAME TO $newug" );
 695                 wfOut( "ok\n" );
 696
 697                 wfOut( "Re-adding fresh user_groups table... " );
 698                 $wgDatabase->sourceFile( archive( 'patch-user_groups.sql' ) );
 699                 wfOut( "ok\n" );
 700
 701                 wfOut( "***\n" );
 702                 wfOut( "*** WARNING: You will need to manually fix up user permissions in the user_groups\n" );
 703                 wfOut( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 704                 wfOut( "***\n" );
 705         } else {
 706                 wfOut( "...user_groups is in current format.\n" );
 707         }
 708
 709 }
 710
 711 function do_watchlist_null() {
 712         # Make sure wl_notificationtimestamp can be NULL,
 713         # and update old broken items.
 714         global $wgDatabase;
 715         $info = $wgDatabase->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 716
 717         if ( !$info->nullable() ) {
 718                 wfOut( "Making wl_notificationtimestamp nullable... " );
 719                 $wgDatabase->sourceFile( archive( 'patch-watchlist-null.sql' ) );
 720                 wfOut( "ok\n" );
 721         } else {
 722                 wfOut( "...wl_notificationtimestamp is already nullable.\n" );
 723         }
 724
 725 }
 726
 727 /**
 728  * @bug 3946
 729  */
 730 function do_page_random_update() {
 731         global $wgDatabase;
 732
 733         wfOut( "Setting page_random to a random value on rows where it equals 0..." );
 734
 735         $page = $wgDatabase->tableName( 'page' );
 736         $wgDatabase->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", 'do_page_random_update' );
 737         $rows = $wgDatabase->affectedRows();
 738
 739         wfOut( "changed $rows rows\n" );
 740 }
 741
 742 function do_templatelinks_update() {
 743         global $wgDatabase;
 744         $fname = 'do_templatelinks_update';
 745
 746         if ( $wgDatabase->tableExists( 'templatelinks' ) ) {
 747                 wfOut( "...templatelinks table already exists\n" );
 748                 return;
 749         }
 750         wfOut( "Creating templatelinks table...\n" );
 751         $wgDatabase->sourceFile( archive( 'patch-templatelinks.sql' ) );
 752         wfOut( "Populating...\n" );
 753         if ( wfGetLB()->getServerCount() > 1 ) {
 754                 // Slow, replication-friendly update
 755                 $res = $wgDatabase->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 756                         array( 'pl_namespace' => NS_TEMPLATE ), $fname );
 757                 $count = 0;
 758                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
 759                         $count = ( $count + 1 ) % 100;
 760                         if ( $count == 0 ) {
 761                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
 762                                         wfWaitForSlaves( 10 );
 763                                 } else {
 764                                         sleep( 1 );
 765                                 }
 766                         }
 767                         $wgDatabase->insert( 'templatelinks',
 768                                 array(
 769                                         'tl_from' => $row->pl_from,
 770                                         'tl_namespace' => $row->pl_namespace,
 771                                         'tl_title' => $row->pl_title,
 772                                 ), $fname
 773                         );
 774
 775                 }
 776         } else {
 777                 // Fast update
 778                 $wgDatabase->insertSelect( 'templatelinks', 'pagelinks',
 779                         array(
 780                                 'tl_from' => 'pl_from',
 781                                 'tl_namespace' => 'pl_namespace',
 782                                 'tl_title' => 'pl_title'
 783                         ), array(
 784                                 'pl_namespace' => 10
 785                         ), $fname
 786                 );
 787         }
 788         wfOut( "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n" );
 789 }
 790
 791 // Add index on ( rc_namespace, rc_user_text ) [Jul. 2006]
 792 // Add index on ( rc_user_text, rc_timestamp ) [Nov. 2006]
 793 function do_rc_indices_update() {
 794         global $wgDatabase;
 795         wfOut( "Checking for additional recent changes indices...\n" );
 796
 797         $indexes = array(
 798                 'rc_ns_usertext' => 'patch-recentchanges-utindex.sql',
 799                 'rc_user_text' => 'patch-rc_user_text-index.sql',
 800         );
 801
 802         foreach ( $indexes as $index => $patch ) {
 803                 $info = $wgDatabase->indexInfo( 'recentchanges', $index, __METHOD__ );
 804                 if ( !$info ) {
 805                         wfOut( "...index `{$index}` not found; adding..." );
 806                         $wgDatabase->sourceFile( archive( $patch ) );
 807                         wfOut( "done.\n" );
 808                 } else {
 809                         wfOut( "...index `{$index}` seems ok.\n" );
 810                 }
 811         }
 812 }
 813
 814 function index_has_field( $table, $index, $field ) {
 815         global $wgDatabase;
 816         wfOut( "Checking if $table index $index includes field $field...\n" );
 817         $info = $wgDatabase->indexInfo( $table, $index, __METHOD__ );
 818         if ( $info ) {
 819                 foreach ( $info as $row ) {
 820                         if ( $row->Column_name == $field ) {
 821                                 wfOut( "...index $index on table $table seems to be ok\n" );
 822                                 return true;
 823                         }
 824                 }
 825         }
 826         wfOut( "...index $index on table $table has no field $field; adding\n" );
 827         return false;
 828 }
 829
 830 function do_backlinking_indices_update() {
 831         global $wgDatabase;
 832         wfOut( "Checking for backlinking indices...\n" );
 833         if ( !index_has_field( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 834                 !index_has_field( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 835                 !index_has_field( 'imagelinks', 'il_to', 'il_from' ) )
 836         {
 837                 $wgDatabase->sourceFile( archive( 'patch-backlinkindexes.sql' ) );
 838                 wfOut( "...backlinking indices updated\n" );
 839         }
 840 }
 841
 842 function do_categorylinks_indices_update() {
 843         global $wgDatabase;
 844         wfOut( "Checking for categorylinks indices...\n" );
 845         if ( !index_has_field( 'categorylinks', 'cl_sortkey', 'cl_from' ) )
 846         {
 847                 $wgDatabase->sourceFile( archive( 'patch-categorylinksindex.sql' ) );
 848                 wfOut( "...categorylinks indices updated\n" );
 849         }
 850 }
 851
 852 function do_filearchive_indices_update() {
 853         global $wgDatabase;
 854         wfOut( "Checking filearchive indices...\n" );
 855         $info = $wgDatabase->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 856         if ( !$info )
 857         {
 858                 $wgDatabase->sourceFile( archive( 'patch-filearchive-user-index.sql' ) );
 859                 wfOut( "...filearchive indices updated\n" );
 860         }
 861 }
 862
 863 function maybe_do_profiling_memory_update() {
 864         global $wgDatabase;
 865         if ( !$wgDatabase->tableExists( 'profiling' ) ) {
 866                 // Simply ignore
 867         } elseif ( $wgDatabase->fieldExists( 'profiling', 'pf_memory' ) ) {
 868                 wfOut( "...profiling table has pf_memory field.\n" );
 869         } else {
 870                 wfOut( "Adding pf_memory field to table profiling..." );
 871                 $wgDatabase->sourceFile( archive( 'patch-profiling-memory.sql' ) );
 872                 wfOut( "ok\n" );
 873         }
 874 }
 875
 876 function do_stats_init() {
 877         // Sometimes site_stats table is not properly populated.
 878         global $wgDatabase;
 879         wfOut( "Checking site_stats row..." );
 880         $row = $wgDatabase->selectRow( 'site_stats', '*', array( 'ss_row_id' => 1 ), __METHOD__ );
 881         if ( $row === false ) {
 882                 wfOut( "data is missing! rebuilding...\n" );
 883         } elseif ( isset( $row->site_stats ) && $row->ss_total_pages == -1 ) {
 884                 wfOut( "missing ss_total_pages, rebuilding...\n" );
 885         } else {
 886                 wfOut( "ok.\n" );
 887                 return;
 888         }
 889         SiteStatsInit::doAllAndCommit( false );
 890 }
 891
 892 function do_active_users_init() {
 893         global $wgDatabase;
 894         $activeUsers = $wgDatabase->selectField( 'site_stats', 'ss_active_users', false, __METHOD__ );
 895         if ( $activeUsers == -1 ) {
 896                 $activeUsers = $wgDatabase->selectField( 'recentchanges',
 897                         'COUNT( DISTINCT rc_user_text )',
 898                         array( 'rc_user != 0', 'rc_bot' => 0, "rc_log_type != 'newusers'" ), __METHOD__
 899                 );
 900                 $wgDatabase->update( 'site_stats',
 901                         array( 'ss_active_users' => intval( $activeUsers ) ),
 902                         array( 'ss_row_id' => 1 ), __METHOD__, array( 'LIMIT' => 1 )
 903                 );
 904         }
 905         wfOut( "...ss_active_users user count set...\n" );
 906 }
 907
 908 function purge_cache() {
 909         global $wgDatabase;
 910         # We can't guarantee that the user will be able to use TRUNCATE,
 911         # but we know that DELETE is available to us
 912         wfOut( "Purging caches..." );
 913         $wgDatabase->delete( 'objectcache', '*', __METHOD__ );
 914         wfOut( "done.\n" );
 915 }
 916
 917 function do_all_updates( $shared = false, $purge = true ) {
 918         global $wgSharedDB, $wgSharedTables, $wgDatabase, $wgDBtype;
 919
 920         $updater = DatabaseUpdater::newForDb( $wgDatabase, $shared );
 921
 922         wfRunHooks( 'LoadExtensionSchemaUpdates', array( &$updater ) );
 923
 924         $updater->doUpdates();
 925
 926         if ( $wgDBtype === 'postgres' ) {
 927                 return;
 928         }
 929
 930         wfOut( "Deleting old default messages (this may take a long time!)..." );
 931         if ( !defined( 'MW_NO_SETUP' ) ) {
 932                 define( 'MW_NO_SETUP', true );
 933         }
 934         require_once 'deleteDefaultMessages.php';
 935         DeleteDefaultMessages::reallyExecute();
 936         wfOut( "Done\n" );
 937
 938         do_stats_init();
 939
 940         if ( $purge ) {
 941                 purge_cache();
 942         }
 943 }
 944
 945 function archive( $name ) {
 946         global $wgDBtype, $IP;
 947         if ( file_exists( "$IP/maintenance/$wgDBtype/archives/$name" ) ) {
 948                 return "$IP/maintenance/$wgDBtype/archives/$name";
 949         } else {
 950                 return "$IP/maintenance/archives/$name";
 951         }
 952 }
 953
 954 function do_restrictions_update() {
 955         # Adding page_restrictions table, obsoleting page.page_restrictions.
 956         #  Migrating old restrictions to new table
 957         # -- Andrew Garrett, January 2007.
 958
 959         global $wgDatabase;
 960
 961         $name = 'page_restrictions';
 962         $patch = 'patch-page_restrictions.sql';
 963         $patch2 = 'patch-page_restrictions_sortkey.sql';
 964
 965         if ( $wgDatabase->tableExists( $name ) ) {
 966                 wfOut( "...$name table already exists.\n" );
 967         } else {
 968                 wfOut( "Creating $name table..." );
 969                 $wgDatabase->sourceFile( archive( $patch ) );
 970                 $wgDatabase->sourceFile( archive( $patch2 ) );
 971                 wfOut( "ok\n" );
 972
 973                 wfOut( "Migrating old restrictions to new table..." );
 974
 975                 $res = $wgDatabase->select( 'page', array( 'page_id', 'page_restrictions' ), array( "page_restrictions!=''", "page_restrictions!='edit=:move='" ), __METHOD__ );
 976
 977                 $count = 0;
 978
 979                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
 980                         $count = ( $count + 1 ) % 100;
 981
 982                         if ( $count == 0 ) {
 983                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
 984                                         wfWaitForSlaves( 10 );
 985                                 } else {
 986                                         sleep( 1 );
 987                                 }
 988                         }
 989
 990                         # Figure out what the restrictions are..
 991                         $id = $row->page_id;
 992                         $flatrestrictions = explode( ':', $row->page_restrictions );
 993
 994                         $restrictions = array ();
 995                         foreach ( $flatrestrictions as $restriction ) {
 996                                 $thisrestriction = explode( '=', $restriction, 2 );
 997                                 if ( count( $thisrestriction ) == 1 ) {
 998                                         // Compatibility with old protections from before
 999                                         // separate move protection was added.
1000                                         list( $level ) = $thisrestriction;
1001                                         if ( $level ) {
1002                                                 $restrictions['edit'] = $level;
1003                                                 $restrictions['move'] = $level;
1004                                         }
1005                                 } else {
1006                                         list( $type, $level ) = $thisrestriction;
1007                                         if ( $level ) {
1008                                                 $restrictions[$type] = $level;
1009                                         }
1010                                 }
1011
1012                         $wgDatabase->update( 'page', array ( 'page_restrictions' => '' ), array( 'page_id' => $id ), __METHOD__ );
1013
1014                         }
1015
1016                         foreach ( $restrictions as $type => $level ) {
1017                                 $wgDatabase->insert( 'page_restrictions', array ( 'pr_page' => $id,
1018                                                                                         'pr_type' => $type,
1019                                                                                         'pr_level' => $level,
1020                                                                                         'pr_cascade' => 0,
1021                                                                                         'pr_expiry' => 'infinity' ),
1022                                                                                         __METHOD__ );
1023                         }
1024                 }
1025                 wfOut( "ok\n" );
1026         }
1027 }
1028
1029 function do_category_population() {
1030         if ( update_row_exists( 'populate category' ) ) {
1031                 wfOut( "...category table already populated.\n" );
1032                 return;
1033         }
1034         require_once( 'populateCategory.php' );
1035         wfOut(
1036                 "Populating category table, printing progress markers. " .
1037                 "For large databases, you\n" .
1038                 "may want to hit Ctrl-C and do this manually with maintenance/\n" .
1039                 "populateCategory.php.\n"
1040         );
1041         $task = new PopulateCategory();
1042         $task->execute();
1043         wfOut( "Done populating category table.\n" );
1044 }
1045
1046 function do_populate_parent_id() {
1047         if ( update_row_exists( 'populate rev_parent_id' ) ) {
1048                 wfOut( "...rev_parent_id column already populated.\n" );
1049                 return;
1050         }
1051         require_once( 'populateParentId.php' );
1052         $task = new PopulateParentId();
1053         $task->execute();
1054 }
1055
1056 function do_populate_rev_len() {
1057         if ( update_row_exists( 'populate rev_len' ) ) {
1058                 wfOut( "...rev_len column already populated.\n" );
1059                 return;
1060         }
1061         require_once( 'populateRevisionLength.php' );
1062         $task = new PopulateRevisionLength();
1063         $task->execute();
1064 }
1065
1066 function do_collation_update() {
1067         global $wgDatabase, $wgCollationVersion;
1068         if ( $wgDatabase->selectField(
1069                 'categorylinks',
1070                 'COUNT(*)',
1071                 'cl_collation != ' . $wgDatabase->addQuotes( $wgCollationVersion ),
1072                 __FUNCTION__
1073         ) == 0 ) {
1074                 wfOut( "...collations up-to-date.\n" );
1075                 return;
1076         }
1077         require_once( 'updateCollation.php' );
1078         $task = new UpdateCollation();
1079         $task->execute();
1080 }
1081
1082 function sqlite_initial_indexes() {
1083         global $wgDatabase;
1084         // initial-indexes.sql fails if the indexes are already present, so we perform a quick check if our database is newer.
1085         if ( update_row_exists( 'initial_indexes' ) || $wgDatabase->indexExists( 'user', 'user_name' ) ) {
1086                 wfOut( "...have initial indexes\n" );
1087                 return;
1088         }
1089         wfOut( "Adding initial indexes..." );
1090         $wgDatabase->sourceFile( archive( 'initial-indexes.sql' ) );
1091         wfOut( "done\n" );
1092 }
1093
1094 function sqlite_setup_searchindex() {
1095         global $wgDatabase;
1096         $module = $wgDatabase->getFulltextSearchModule();
1097         $fts3tTable = update_row_exists( 'fts3' );
1098         if ( $fts3tTable &&  !$module ) {
1099                 wfOut( '...PHP is missing FTS3 support, downgrading tables...' );
1100                 $wgDatabase->sourceFile( archive( 'searchindex-no-fts.sql' ) );
1101                 wfOut( "done\n" );
1102         } elseif ( !$fts3tTable && $module == 'FTS3' ) {
1103                 wfOut( '...adding FTS3 search capabilities...' );
1104                 $wgDatabase->sourceFile( archive( 'searchindex-fts3.sql' ) );
1105                 wfOut( "done\n" );
1106         } else {
1107                 wfOut( "...fulltext search table appears to be in order.\n" );
1108         }
1109 }
1110
1111 function do_unique_pl_tl_il() {
1112         global $wgDatabase;
1113         $info = $wgDatabase->indexInfo( 'pagelinks', 'pl_namespace' );
1114         if ( is_array( $info ) && !$info[0]->Non_unique ) {
1115                 wfOut( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
1116         } else {
1117                 wfOut( "Making pl_namespace, tl_namespace and il_to indices UNIQUE... " );
1118                 $wgDatabase->sourceFile( archive( 'patch-pl-tl-il-unique.sql' ) );
1119                 wfOut( "ok\n" );
1120         }
1121 }
1122
1123 function do_log_search_population() {
1124         if ( update_row_exists( 'populate log_search' ) ) {
1125                 wfOut( "...log_search table already populated.\n" );
1126                 return;
1127         }
1128         require_once( 'populateLogSearch.php' );
1129         wfOut(
1130 "Populating log_search table, printing progress markers. For large\n" .
1131 "databases, you may want to hit Ctrl-C and do this manually with\n" .
1132 "maintenance/populateLogSearch.php.\n" );
1133         $task = new PopulateLogSearch();
1134         $task->execute();
1135         wfOut( "Done populating log_search table.\n" );
1136 }
1137
1138 function rename_eu_wiki_id() {
1139         global $wgDatabase;
1140         if ( $wgDatabase->fieldExists( 'external_user', 'eu_local_id' ) ) {
1141                 wfOut( "...eu_wiki_id already renamed to eu_local_id.\n" );
1142                 return;
1143         }
1144         wfOut( "Renaming eu_wiki_id -> eu_local_id... " );
1145         $wgDatabase->sourceFile( archive( 'patch-eu_local_id.sql' ) );
1146         wfOut( "ok\n" );
1147 }
1148
1149 function do_update_transcache_field() {
1150         global $wgDatabase;
1151         if ( update_row_exists( 'convert transcache field' ) ) {
1152                 wfOut( "...transcache tc_time already converted.\n" );
1153                 return;
1154         } else {
1155                 wfOut( "Converting tc_time from UNIX epoch to MediaWiki timestamp... " );
1156                 $wgDatabase->sourceFile( archive( 'patch-tc-timestamp.sql' ) );
1157                 wfOut( "ok\n" );
1158         }
1159 }
1160
1161 function do_update_mime_minor_field() {
1162         if ( update_row_exists( 'mime_minor_length' ) ) {
1163                 wfOut( "...*_mime_minor fields are already long enough.\n" );
1164         } else {
1165                 global $wgDatabase;
1166                 wfOut( "Altering all *_mime_minor fields to 100 bytes in size ... " );
1167                 $wgDatabase->sourceFile( archive( 'patch-mime_minor_length.sql' ) );
1168                 wfOut( "ok\n" );
1169         }
1170 }
1171
1172 /***********************************************************************
1173  * Start PG stuff
1174  * TODO: merge with above
1175  ***********************************************************************/
1176
1177 function pg_describe_table( $table ) {
1178         global $wgDatabase, $wgDBmwschema;
1179         $q = <<<END
1180 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
1181         WHERE pg_class.relnamespace = pg_namespace.oid
1182           AND attrelid=pg_class.oid AND attnum > 0
1183           AND relname=%s AND nspname=%s
1184 END;
1185         $res = $wgDatabase->query( sprintf( $q,
1186                         $wgDatabase->addQuotes( $table ),
1187                         $wgDatabase->addQuotes( $wgDBmwschema ) ) );
1188         if ( !$res ) {
1189                 return null;
1190         }
1191
1192         $cols = array();
1193         while ( $r = $wgDatabase->fetchRow( $res ) ) {
1194                 $cols[] = array(
1195                                 "name" => $r[0],
1196                                 "ord" => $r[1],
1197                         );
1198         }
1199         return $cols;
1200 }
1201
1202 function pg_describe_index( $idx ) {
1203         global $wgDatabase, $wgDBmwschema;
1204
1205         // first fetch the key (which is a list of columns ords) and
1206         // the table the index applies to (an oid)
1207         $q = <<<END
1208 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
1209         WHERE nspname=%s
1210           AND pg_class.relnamespace = pg_namespace.oid
1211           AND relname=%s
1212           AND indexrelid=pg_class.oid
1213 END;
1214         $res = $wgDatabase->query( sprintf( $q,
1215                         $wgDatabase->addQuotes( $wgDBmwschema ),
1216                         $wgDatabase->addQuotes( $idx ) ) );
1217         if ( !$res ) {
1218                 return null;
1219         }
1220         if ( !( $r = $wgDatabase->fetchRow( $res ) ) ) {
1221                 return null;
1222         }
1223
1224         $indkey = $r[0];
1225         $relid = intval( $r[1] );
1226         $indkeys = explode( " ", $indkey );
1227
1228         $colnames = array();
1229         foreach ( $indkeys as $rid ) {
1230                 $query = <<<END
1231 SELECT attname FROM pg_class, pg_attribute
1232         WHERE attrelid=$relid
1233           AND attnum=%d
1234           AND attrelid=pg_class.oid
1235 END;
1236                 $r2 = $wgDatabase->query( sprintf( $query, $rid ) );
1237                 if ( !$r2 ) {
1238                         return null;
1239                 }
1240                 if ( !( $row2 = $wgDatabase->fetchRow( $r2 ) ) ) {
1241                         return null;
1242                 }
1243                 $colnames[] = $row2[0];
1244         }
1245
1246         return $colnames;
1247 }
1248
1249 function pg_index_exists( $table, $index ) {
1250         global $wgDatabase, $wgDBmwschema;
1251         $exists = $wgDatabase->selectField( "pg_indexes", "indexname",
1252                         array(  "indexname" => $index,
1253                                 "tablename" => $table,
1254                                 "schemaname" => $wgDBmwschema ) );
1255         return $exists === $index;
1256 }
1257
1258 function pg_fkey_deltype( $fkey ) {
1259         global $wgDatabase, $wgDBmwschema;
1260         $q = <<<END
1261 SELECT confdeltype FROM pg_constraint, pg_namespace
1262         WHERE connamespace=pg_namespace.oid
1263           AND nspname=%s
1264           AND conname=%s;
1265 END;
1266         $r = $wgDatabase->query( sprintf( $q,
1267                 $wgDatabase->addQuotes( $wgDBmwschema ),
1268                 $wgDatabase->addQuotes( $fkey ) ) );
1269         if ( !( $row = $wgDatabase->fetchRow( $r ) ) ) {
1270                 return null;
1271         }
1272         return $row[0];
1273 }
1274
1275 function pg_rule_def( $table, $rule ) {
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         }
1291         $d = $row[0];
1292         return $d;
1293 }
1294
1295 function do_postgres_updates() {
1296         global $wgDatabase, $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         # Just in case their LocalSettings.php does not have this:
1303         if ( !isset( $wgDBmwschema ) ) {
1304                 $wgDBmwschema = 'mediawiki';
1305         }
1306
1307         # Verify that this user is configured correctly
1308         $safeuser = $wgDatabase->addQuotes( $wgDBuser );
1309         $SQL = "SELECT array_to_string(useconfig,'*') FROM pg_catalog.pg_user WHERE usename = $safeuser";
1310         $config = pg_fetch_result( $wgDatabase->doQuery( $SQL ), 0, 0 );
1311         $conf = array();
1312         foreach ( explode( '*', $config ) as $c ) {
1313                 list( $x, $y ) = explode( '=', $c );
1314                 $conf[$x] = $y;
1315         }
1316         if ( !array_key_exists( 'search_path', $conf ) ) {
1317                 $search_path = '';
1318         } else {
1319                 $search_path = $conf['search_path'];
1320         }
1321         if ( strpos( $search_path, $wgDBmwschema ) === false ) {
1322                 wfOut( "Adding in schema \"$wgDBmwschema\" to search_path for user \"$wgDBuser\"\n" );
1323                 $search_path = "$wgDBmwschema, $search_path";
1324         }
1325         if ( strpos( $search_path, $wgDBts2schema ) === false ) {
1326                 wfOut( "Adding in schema \"$wgDBts2schema\" to search_path for user \"$wgDBuser\"\n" );
1327                 $search_path = "$search_path, $wgDBts2schema";
1328         }
1329         $search_path = str_replace( ', ,', ',', $search_path );
1330         if ( array_key_exists( 'search_path', $conf ) === false || $search_path != $conf['search_path'] ) {
1331                 $wgDatabase->doQuery( "ALTER USER $wgDBuser SET search_path = $search_path" );
1332                 $wgDatabase->doQuery( "SET search_path = $search_path" );
1333         } else {
1334                 $path = $conf['search_path'];
1335                 wfOut( "... search_path for user \"$wgDBuser\" looks correct ($path)\n" );
1336         }
1337         $goodconf = array(
1338                 'client_min_messages' => 'error',
1339                 'DateStyle'           => 'ISO, YMD',
1340                 'TimeZone'            => 'GMT'
1341         );
1342         foreach ( array_keys( $goodconf ) AS $key ) {
1343                 $value = $goodconf[$key];
1344                 if ( !array_key_exists( $key, $conf ) or $conf[$key] !== $value ) {
1345                         wfOut( "Setting $key to '$value' for user \"$wgDBuser\"\n" );
1346                         $wgDatabase->doQuery( "ALTER USER $wgDBuser SET $key = '$value'" );
1347                         $wgDatabase->doQuery( "SET $key = '$value'" );
1348                 } else {
1349                         wfOut( "... default value of \"$key\" is correctly set to \"$value\" for user \"$wgDBuser\"\n" );
1350                 }
1351         }
1352
1353         $newsequences = array(
1354                 "logging_log_id_seq",
1355                 "page_restrictions_pr_id_seq",
1356         );
1357
1358         $renamed_sequences = array(
1359                 array('ipblocks_ipb_id_val', 'ipblocks_ipb_id_seq'),
1360                 array('rev_rev_id_val', 'revision_rev_id_seq'),
1361                 array('text_old_id_val', 'text_old_id_seq'),
1362                 array('category_id_seq', 'category_cat_id_seq'),
1363                 array('rc_rc_id_seq', 'recentchanges_rc_id_seq'),
1364                 array('log_log_id_seq', 'logging_log_id_seq'),
1365                 array('pr_id_val', 'page_restrictions_pr_id_seq'),
1366         );
1367
1368         $newtables = array(
1369                 array( "category",          "patch-category.sql" ),
1370                 array( "mwuser",            "patch-mwuser.sql" ),
1371                 array( "pagecontent",       "patch-pagecontent.sql" ),
1372                 array( "querycachetwo",     "patch-querycachetwo.sql" ),
1373                 array( "page_props",        "patch-page_props.sql" ),
1374                 array( "page_restrictions", "patch-page_restrictions.sql" ),
1375                 array( "profiling",         "patch-profiling.sql" ),
1376                 array( "protected_titles",  "patch-protected_titles.sql" ),
1377                 array( "redirect",          "patch-redirect.sql" ),
1378                 array( "updatelog",         "patch-updatelog.sql" ),
1379                 array( 'change_tag',        'patch-change_tag.sql' ),
1380                 array( 'tag_summary',       'patch-change_tag.sql' ),
1381                 array( 'valid_tag',         'patch-change_tag.sql' ),
1382                 array( 'user_properties',   'patch-user_properties.sql' ),
1383                 array( 'log_search',        'patch-log_search.sql' ),
1384                 array( 'l10n_cache',        'patch-l10n_cache.sql' ),
1385                 array( 'iwlinks',           'patch-iwlinks.sql' ),
1386         );
1387
1388         $newcols = array(
1389                 array( "archive",       "ar_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1390                 array( "archive",       "ar_len",               "INTEGER" ),
1391                 array( "archive",       "ar_page_id",           "INTEGER" ),
1392                 array( "archive",       "ar_parent_id",         "INTEGER" ),
1393                 array( "image",         "img_sha1",             "TEXT NOT NULL DEFAULT ''" ),
1394                 array( "ipblocks",      "ipb_allow_usertalk",   "SMALLINT NOT NULL DEFAULT 0" ),
1395                 array( "ipblocks",      "ipb_anon_only",        "SMALLINT NOT NULL DEFAULT 0" ),
1396                 array( "ipblocks",      "ipb_by_text",          "TEXT NOT NULL DEFAULT ''" ),
1397                 array( "ipblocks",      "ipb_block_email",      "SMALLINT NOT NULL DEFAULT 0" ),
1398                 array( "ipblocks",      "ipb_create_account",   "SMALLINT NOT NULL DEFAULT 1" ),
1399                 array( "ipblocks",      "ipb_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
1400                 array( "ipblocks",      "ipb_enable_autoblock", "SMALLINT NOT NULL DEFAULT 1" ),
1401                 array( "filearchive",   "fa_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1402                 array( "logging",       "log_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
1403                 array( "logging",       "log_id",               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ),
1404                 array( "logging",       "log_params",           "TEXT" ),
1405                 array( "mwuser",        "user_editcount",       "INTEGER" ),
1406                 array( "mwuser",        "user_hidden",          "SMALLINT NOT NULL DEFAULT 0" ),
1407                 array( "mwuser",        "user_newpass_time",    "TIMESTAMPTZ" ),
1408                 array( "oldimage",      "oi_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1409                 array( "oldimage",      "oi_major_mime",        "TEXT NOT NULL DEFAULT 'unknown'" ),
1410                 array( "oldimage",      "oi_media_type",        "TEXT" ),
1411                 array( "oldimage",      "oi_metadata",          "BYTEA NOT NULL DEFAULT ''" ),
1412                 array( "oldimage",      "oi_minor_mime",        "TEXT NOT NULL DEFAULT 'unknown'" ),
1413                 array( "oldimage",      "oi_sha1",              "TEXT NOT NULL DEFAULT ''" ),
1414                 array( "page_restrictions", "pr_id",            "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_val')" ),
1415                 array( "profiling",     "pf_memory",            "NUMERIC(18,10) NOT NULL DEFAULT 0" ),
1416                 array( "recentchanges", "rc_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1417                 array( "recentchanges", "rc_log_action",        "TEXT" ),
1418                 array( "recentchanges", "rc_log_type",          "TEXT" ),
1419                 array( "recentchanges", "rc_logid",             "INTEGER NOT NULL DEFAULT 0" ),
1420                 array( "recentchanges", "rc_new_len",           "INTEGER" ),
1421                 array( "recentchanges", "rc_old_len",           "INTEGER" ),
1422                 array( "recentchanges", "rc_params",            "TEXT" ),
1423                 array( "redirect",      "rd_interwiki",         "TEXT NULL" ),
1424                 array( "redirect",      "rd_fragment",          "TEXT NULL" ),
1425                 array( "revision",      "rev_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
1426                 array( "revision",      "rev_len",              "INTEGER" ),
1427                 array( "revision",      "rev_parent_id",        "INTEGER DEFAULT NULL" ),
1428                 array( "site_stats",    "ss_active_users",      "INTEGER DEFAULT '-1'" ),
1429                 array( "user_newtalk",  "user_last_timestamp",  "TIMESTAMPTZ" ),
1430                 array( "logging",       "log_user_text",        "TEXT NOT NULL DEFAULT ''" ),
1431                 array( "logging",       "log_page",             "INTEGER" ),
1432                 array( "interwiki",     "iw_api",               "TEXT NOT NULL DEFAULT ''"),
1433                 array( "interwiki",     "iw_wikiid",            "TEXT NOT NULL DEFAULT ''"),
1434         );
1435
1436
1437         # table, column, desired type, USING clause if needed (with new default if needed)
1438         $typechanges = array(
1439                 array( "archive",      "ar_deleted",      "smallint", "" ),
1440                 array( "archive",      "ar_minor_edit",   "smallint", "ar_minor_edit::smallint DEFAULT 0" ),
1441                 array( "filearchive",  "fa_deleted",      "smallint", "" ),
1442                 array( "filearchive",  "fa_height",       "integer",  "" ),
1443                 array( "filearchive",  "fa_metadata",     "bytea",    "decode(fa_metadata,'escape')" ),
1444                 array( "filearchive",  "fa_size",         "integer",  "" ),
1445                 array( "filearchive",  "fa_width",        "integer",  "" ),
1446                 array( "filearchive",  "fa_storage_group", "text",     "" ),
1447                 array( "filearchive",  "fa_storage_key",  "text",     "" ),
1448                 array( "image",        "img_metadata",    "bytea",    "decode(img_metadata,'escape')" ),
1449                 array( "image",        "img_size",        "integer",  "" ),
1450                 array( "image",        "img_width",       "integer",  "" ),
1451                 array( "image",        "img_height",      "integer",  "" ),
1452                 array( "interwiki",    "iw_local",        "smallint", "iw_local::smallint DEFAULT 0" ),
1453                 array( "interwiki",    "iw_trans",        "smallint", "iw_trans::smallint DEFAULT 0" ),
1454                 array( "ipblocks",     "ipb_auto",        "smallint", "ipb_auto::smallint DEFAULT 0" ),
1455                 array( "ipblocks",     "ipb_anon_only",   "smallint", "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ),
1456                 array( "ipblocks",     "ipb_create_account", "smallint", "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ),
1457                 array( "ipblocks",     "ipb_enable_autoblock", "smallint", "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ),
1458                 array( "ipblocks",     "ipb_block_email", "smallint", "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ),
1459                 array( "ipblocks",     "ipb_address",     "text",     "ipb_address::text" ),
1460                 array( "ipblocks",     "ipb_deleted",     "smallint", "ipb_deleted::smallint DEFAULT 0" ),
1461                 array( "math",         "math_inputhash",  "bytea",    "decode(math_inputhash,'escape')" ),
1462                 array( "math",         "math_outputhash", "bytea",    "decode(math_outputhash,'escape')" ),
1463                 array( "mwuser",       "user_token",      "text",     "" ),
1464                 array( "mwuser",       "user_email_token", "text",     "" ),
1465                 array( "objectcache",  "keyname",         "text",     "" ),
1466                 array( "oldimage",     "oi_height",       "integer",  "" ),
1467                 array( "oldimage",     "oi_metadata",     "bytea",    "decode(img_metadata,'escape')" ),
1468                 array( "oldimage",     "oi_size",         "integer",  "" ),
1469                 array( "oldimage",     "oi_width",        "integer",  "" ),
1470                 array( "page",         "page_is_redirect", "smallint", "page_is_redirect::smallint DEFAULT 0" ),
1471                 array( "page",         "page_is_new",     "smallint", "page_is_new::smallint DEFAULT 0" ),
1472                 array( "querycache",   "qc_value",        "integer",  "" ),
1473                 array( "querycachetwo", "qcc_value",       "integer",  "" ),
1474                 array( "recentchanges", "rc_bot",          "smallint", "rc_bot::smallint DEFAULT 0" ),
1475                 array( "recentchanges", "rc_deleted",      "smallint", "" ),
1476                 array( "recentchanges", "rc_minor",        "smallint", "rc_minor::smallint DEFAULT 0" ),
1477                 array( "recentchanges", "rc_new",          "smallint", "rc_new::smallint DEFAULT 0" ),
1478                 array( "recentchanges", "rc_type",         "smallint", "rc_type::smallint DEFAULT 0" ),
1479                 array( "recentchanges", "rc_patrolled",    "smallint", "rc_patrolled::smallint DEFAULT 0" ),
1480                 array( "revision",     "rev_deleted",     "smallint", "rev_deleted::smallint DEFAULT 0" ),
1481                 array( "revision",     "rev_minor_edit",  "smallint", "rev_minor_edit::smallint DEFAULT 0" ),
1482                 array( "templatelinks", "tl_namespace",    "smallint", "tl_namespace::smallint" ),
1483                 array( "user_newtalk", "user_ip",         "text",     "host(user_ip)" ),
1484         );
1485
1486         # table, column, nullability
1487         $nullchanges = array(
1488                 array( "oldimage", "oi_bits",       "NULL" ),
1489                 array( "oldimage", "oi_timestamp",  "NULL" ),
1490                 array( "oldimage", "oi_major_mime", "NULL" ),
1491                 array( "oldimage", "oi_minor_mime", "NULL" ),
1492         );
1493
1494         $newindexes = array(
1495                 array( "archive",       "archive_user_text",      "(ar_user_text)" ),
1496                 array( "image",         "img_sha1",               "(img_sha1)" ),
1497                 array( "oldimage",      "oi_sha1",                "(oi_sha1)" ),
1498                 array( "page",          "page_mediawiki_title",   "(page_title) WHERE page_namespace = 8" ),
1499                 array( "revision",      "rev_text_id_idx",        "(rev_text_id)" ),
1500                 array( "recentchanges", "rc_timestamp_bot",       "(rc_timestamp) WHERE rc_bot = 0" ),
1501                 array( "templatelinks", "templatelinks_from",     "(tl_from)" ),
1502                 array( "watchlist",     "wl_user",                "(wl_user)" ),
1503                 array( "logging",       "logging_user_type_time", "(log_user, log_type, log_timestamp)" ),
1504                 array( "logging",       "logging_page_id_time",   "(log_page,log_timestamp)" ),
1505                 array( "iwlinks",       "iwl_prefix_title_from",  "(iwl_prefix, iwl_title, iwl_from)" ),
1506         );
1507
1508         $newrules = array(
1509         );
1510
1511         # # All FK columns should be deferred
1512         $deferredcols = array(
1513                 array( "archive",          "ar_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1514                 array( "categorylinks",    "cl_from",         "page(page_id) ON DELETE CASCADE" ),
1515                 array( "externallinks",    "el_from",         "page(page_id) ON DELETE CASCADE" ),
1516                 array( "filearchive",      "fa_deleted_user", "mwuser(user_id) ON DELETE SET NULL" ),
1517                 array( "filearchive",      "fa_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1518                 array( "image",            "img_user",        "mwuser(user_id) ON DELETE SET NULL" ),
1519                 array( "imagelinks",       "il_from",         "page(page_id) ON DELETE CASCADE" ),
1520                 array( "ipblocks",         "ipb_by",          "mwuser(user_id) ON DELETE CASCADE" ),
1521                 array( "ipblocks",         "ipb_user",        "mwuser(user_id) ON DELETE SET NULL" ),
1522                 array( "langlinks",        "ll_from",         "page(page_id) ON DELETE CASCADE" ),
1523                 array( "logging",          "log_user",        "mwuser(user_id) ON DELETE SET NULL" ),
1524                 array( "oldimage",         "oi_name",         "image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" ),
1525                 array( "oldimage",         "oi_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1526                 array( "pagelinks",        "pl_from",         "page(page_id) ON DELETE CASCADE" ),
1527                 array( "page_props",       "pp_page",         "page (page_id) ON DELETE CASCADE" ),
1528                 array( "page_restrictions", "pr_page",         "page(page_id) ON DELETE CASCADE" ),
1529                 array( "protected_titles", "pt_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1530                 array( "recentchanges",    "rc_cur_id",       "page(page_id) ON DELETE SET NULL" ),
1531                 array( "recentchanges",    "rc_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1532                 array( "redirect",         "rd_from",         "page(page_id) ON DELETE CASCADE" ),
1533                 array( "revision",         "rev_page",        "page (page_id) ON DELETE CASCADE" ),
1534                 array( "revision",         "rev_user",        "mwuser(user_id) ON DELETE RESTRICT" ),
1535                 array( "templatelinks",    "tl_from",         "page(page_id) ON DELETE CASCADE" ),
1536                 array( "trackbacks",       "tb_page",         "page(page_id) ON DELETE CASCADE" ),
1537                 array( "user_groups",      "ug_user",         "mwuser(user_id) ON DELETE CASCADE" ),
1538                 array( "user_newtalk",     "user_id",         "mwuser(user_id) ON DELETE CASCADE" ),
1539                 array( "user_properties",  "up_user",         "mwuser(user_id) ON DELETE CASCADE" ),
1540                 array( "watchlist",        "wl_user",         "mwuser(user_id) ON DELETE CASCADE" ),
1541         );
1542
1543         # Create new sequences
1544         foreach ( $newsequences as $ns ) {
1545                 if ( ! $wgDatabase->sequenceExists( $ns ) ) {
1546                         wfOut( "Creating sequence $ns\n" );
1547                         $wgDatabase->query( "CREATE SEQUENCE $ns" );
1548                 }
1549         }
1550
1551         # Rename sequences
1552         foreach ( $renamed_sequences as $ren ) {
1553                 if ( $wgDatabase->sequenceExists( $ren[0] ) ) {
1554                         wfOut( "Renaming sequence $ren[0] to $ren[1]\n" );
1555                         $wgDatabase->query( "ALTER SEQUENCE $ren[0] RENAME TO $ren[1]" );
1556                 }
1557         }
1558
1559         # Create new tables
1560         foreach ( $newtables as $nt ) {
1561                 if ( $wgDatabase->tableExists( $nt[0] ) ) {
1562                         wfOut( "... table \"$nt[0]\" already exists\n" );
1563                         continue;
1564                 }
1565
1566                 wfOut( "Creating table \"$nt[0]\"\n" );
1567                 $wgDatabase->sourceFile( archive( $nt[1] ) );
1568         }
1569
1570         # Needed before newcols
1571         if ( $wgDatabase->tableExists( "archive2" ) ) {
1572                 wfOut( "Converting \"archive2\" back to normal archive table\n" );
1573                 if ( $wgDatabase->ruleExists( "archive", "archive_insert" ) ) {
1574                         wfOut( "Dropping rule \"archive_insert\"\n" );
1575                         $wgDatabase->query( "DROP RULE archive_insert ON archive" );
1576                 }
1577                 if ( $wgDatabase->ruleExists( "archive", "archive_delete" ) ) {
1578                         wfOut( "Dropping rule \"archive_delete\"\n" );
1579                         $wgDatabase->query( "DROP RULE archive_delete ON archive" );
1580                 }
1581                 $wgDatabase->sourceFile( archive( "patch-remove-archive2.sql" ) );
1582         }
1583         else
1584                 wfOut( "... obsolete table \"archive2\" does not exist\n" );
1585
1586         foreach ( $newcols as $nc ) {
1587                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1588                 if ( !is_null( $fi ) ) {
1589                         wfOut( "... column \"$nc[0].$nc[1]\" already exists\n" );
1590                         continue;
1591                 }
1592
1593                 wfOut( "Adding column \"$nc[0].$nc[1]\"\n" );
1594                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1595         }
1596
1597         foreach ( $typechanges as $tc ) {
1598                 $fi = $wgDatabase->fieldInfo( $tc[0], $tc[1] );
1599                 if ( is_null( $fi ) ) {
1600                         wfOut( "... error: expected column $tc[0].$tc[1] to exist\n" );
1601                         exit( 1 );
1602                 }
1603
1604                 if ( $fi->type() === $tc[2] )
1605                         wfOut( "... column \"$tc[0].$tc[1]\" is already of type \"$tc[2]\"\n" );
1606                 else {
1607                         wfOut( "Changing column type of \"$tc[0].$tc[1]\" from \"{$fi->type()}\" to \"$tc[2]\"\n" );
1608                         $sql = "ALTER TABLE $tc[0] ALTER $tc[1] TYPE $tc[2]";
1609                         if ( strlen( $tc[3] ) ) {
1610                                 $default = array();
1611                                 if ( preg_match( '/DEFAULT (.+)/', $tc[3], $default ) ) {
1612                                         $sqldef = "ALTER TABLE $tc[0] ALTER $tc[1] SET DEFAULT $default[1]";
1613                                         $wgDatabase->query( $sqldef );
1614                                         $tc[3] = preg_replace( '/\s*DEFAULT .+/', '', $tc[3] );
1615                                 }
1616                                 $sql .= " USING $tc[3]";
1617                         }
1618                         $sql .= ";\nCOMMIT;\n";
1619                         $wgDatabase->query( $sql );
1620                 }
1621         }
1622
1623         foreach ( $nullchanges as $nc ) {
1624                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1625                 if ( is_null( $fi ) ) {
1626                         wfOut( "... error: expected column $nc[0].$nc[1] to exist\n" );
1627                         exit( 1 );
1628                 }
1629                 if ( $fi->nullable() ) {
1630                         # # It's NULL - does it need to be NOT NULL?
1631                         if ( 'NOT NULL' === $nc[2] ) {
1632                                 wfOut( "Changing \"$nc[0].$nc[1]\" to not allow NULLs\n" );
1633                                 $wgDatabase->query( "ALTER TABLE $nc[0] ALTER $nc[1] SET NOT NULL" );
1634                         } else {
1635                                 wfOut( "... column \"$nc[0].$nc[1]\" is already set as NULL\n" );
1636                         }
1637                 } else {
1638                         # # It's NOT NULL - does it need to be NULL?
1639                         if ( 'NULL' === $nc[2] ) {
1640                                 wfOut( "Changing \"$nc[0].$nc[1]\" to allow NULLs\n" );
1641                                 $wgDatabase->query( "ALTER TABLE $nc[0] ALTER $nc[1] DROP NOT NULL" );
1642                         }
1643                         else {
1644                                 wfOut( "... column \"$nc[0].$nc[1]\" is already set as NOT NULL\n" );
1645                         }
1646                 }
1647         }
1648
1649         if ( $wgDatabase->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) {
1650                 wfOut( "Changing \"oldimage.oi_deleted\" to type \"smallint\"\n" );
1651                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
1652                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
1653                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
1654         } else {
1655                 wfOut( "... column \"oldimage.oi_deleted\" is already of type \"smallint\"\n" );
1656         }
1657
1658         foreach ( $newindexes as $ni ) {
1659                 if ( pg_index_exists( $ni[0], $ni[1] ) ) {
1660                         wfOut( "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n" );
1661                         continue;
1662                 }
1663                 wfOut( "Creating index \"$ni[1]\" on table \"$ni[0]\" $ni[2]\n" );
1664                 $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
1665         }
1666
1667         foreach ( $newrules as $nr ) {
1668                 if ( $wgDatabase->ruleExists( $nr[0], $nr[1] ) ) {
1669                         wfOut( "... rule \"$nr[1]\" on table \"$nr[0]\" already exists\n" );
1670                         continue;
1671                 }
1672                 wfOut( "Adding rule \"$nr[1]\" to table \"$nr[0]\"\n" );
1673                 $wgDatabase->sourceFile( archive( $nr[2] ) );
1674         }
1675
1676         if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
1677                 wfOut( "... table \"oldimage\" has correct cascading delete/update foreign key to image\n" );
1678         } else {
1679                 if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey" ) ) {
1680                         $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
1681                 }
1682                 if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
1683                         $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
1684                 }
1685                 wfOut( "Making foreign key on table \"oldimage\" (to image) a cascade delete/update\n" );
1686                 $wgDatabase->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
1687                         "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" );
1688         }
1689
1690         if ( !$wgDatabase->triggerExists( "page", "page_deleted" ) ) {
1691                 wfOut( "Adding function and trigger \"page_deleted\" to table \"page\"\n" );
1692                 $wgDatabase->sourceFile( archive( 'patch-page_deleted.sql' ) );
1693         } else {
1694                 wfOut( "... table \"page\" has \"page_deleted\" trigger\n" );
1695         }
1696
1697         $fi = $wgDatabase->fieldInfo( "recentchanges", "rc_cur_id" );
1698         if ( !$fi->nullable() ) {
1699                 wfOut( "Removing NOT NULL constraint from \"recentchanges.rc_cur_id\"\n" );
1700                 $wgDatabase->sourceFile( archive( 'patch-rc_cur_id-not-null.sql' ) );
1701         } else {
1702                 wfOut( "... column \"recentchanges.rc_cur_id\" has a NOT NULL constraint\n" );
1703         }
1704
1705         $pu = pg_describe_index( "pagelink_unique" );
1706         if ( !is_null( $pu ) && ( $pu[0] != "pl_from" || $pu[1] != "pl_namespace" || $pu[2] != "pl_title" ) ) {
1707                 wfOut( "Dropping obsolete version of index \"pagelink_unique index\"\n" );
1708                 $wgDatabase->query( "DROP INDEX pagelink_unique" );
1709                 $pu = null;
1710         } else {
1711                 wfOut( "... obsolete version of index \"pagelink_unique index\" does not exist\n" );
1712         }
1713
1714         if ( is_null( $pu ) ) {
1715                 wfOut( "Creating index \"pagelink_unique index\"\n" );
1716                 $wgDatabase->query( "CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)" );
1717         } else {
1718                 wfOut( "... index \"pagelink_unique_index\" already exists\n" );
1719         }
1720
1721         if ( pg_fkey_deltype( "revision_rev_user_fkey" ) == 'r' ) {
1722                 wfOut( "... constraint \"revision_rev_user_fkey\" is ON DELETE RESTRICT\n" );
1723         } else {
1724                 wfOut( "Changing constraint \"revision_rev_user_fkey\" to ON DELETE RESTRICT\n" );
1725                 $wgDatabase->sourceFile( archive( 'patch-revision_rev_user_fkey.sql' ) );
1726         }
1727
1728         # Fix ipb_address index
1729         if ( pg_index_exists( 'ipblocks', 'ipb_address' ) ) {
1730                 wfOut( "Removing deprecated index 'ipb_address'...\n" );
1731                 $wgDatabase->query( 'DROP INDEX ipb_address' );
1732         }
1733         if ( pg_index_exists( 'ipblocks', 'ipb_address_unique' ) ) {
1734                 wfOut( "... have ipb_address_unique\n" );
1735         } else {
1736                 wfOut( "Adding ipb_address_unique index\n" );
1737                 $wgDatabase->sourceFile( archive( 'patch-ipb_address_unique.sql' ) );
1738         }
1739
1740         # Fix iwlinks index
1741         if ( pg_index_exists( 'iwlinks', 'iwl_prefix' ) ) {
1742                 wfOut( "Replacing index 'iwl_prefix' with 'iwl_prefix_from_title'...\n" );
1743                 $wgDatabase->sourceFile( archive( 'patch-rename-iwl_prefix.sql' ) );
1744         }
1745
1746         global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
1747         # Add missing extension tables
1748         foreach ( $wgExtNewTables as $nt ) {
1749                 if ( $wgDatabase->tableExists( $nt[0] ) ) {
1750                         wfOut( "... table \"$nt[0]\" already exists\n" );
1751                         continue;
1752                 }
1753                 wfOut( "Creating table \"$nt[0]\"\n" );
1754                 $wgDatabase->sourceFile( $nt[1] );
1755         }
1756         # Add missing extension fields
1757         foreach ( $wgExtPGNewFields as $nc ) {
1758                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1759                 if ( !is_null( $fi ) ) {
1760                         wfOut( "... column \"$nc[0].$nc[1]\" already exists\n" );
1761                         continue;
1762                 }
1763                 wfOut( "Adding column \"$nc[0].$nc[1]\"\n" );
1764                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1765         }
1766         # Change altered columns
1767         foreach ( $wgExtPGAlteredFields as $nc ) {
1768                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1769                 if ( is_null( $fi ) ) {
1770                         wfOut( "WARNING! Column \"$nc[0].$nc[1]\" does not exist but had an alter request! Please report this.\n" );
1771                         continue;
1772                 }
1773                 $oldtype = $fi->type();
1774                 $newtype = strtolower( $nc[2] );
1775                 if ( $oldtype === $newtype ) {
1776                         wfOut( "... column \"$nc[0].$nc[1]\" has correct type of \"$newtype\"\n" );
1777                         continue;
1778                 }
1779                 $command = "ALTER TABLE $nc[0] ALTER $nc[1] TYPE $nc[2]";
1780                 if ( isset( $nc[3] ) ) {
1781                         $command .= " USING $nc[3]";
1782                 }
1783                 wfOut( "Altering column \"$nc[0].$nc[1]\" from type \"$oldtype\" to \"$newtype\"\n" );
1784                 $wgDatabase->query( $command );
1785         }
1786         # Add missing extension indexes
1787         foreach ( $wgExtNewIndexes as $ni ) {
1788                 if ( pg_index_exists( $ni[0], $ni[1] ) ) {
1789                         wfOut( "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n" );
1790                         continue;
1791                 }
1792                 wfOut( "Creating index \"$ni[1]\" on table \"$ni[0]\"\n" );
1793                 if ( preg_match( '/^\(/', $ni[2] ) ) {
1794                         $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
1795                 }
1796                 else {
1797                         $wgDatabase->sourceFile( $ni[2] );
1798                 }
1799         }
1800
1801         foreach ( $deferredcols AS $dc ) {
1802                 $fi = $wgDatabase->fieldInfo( $dc[0], $dc[1] );
1803                 if ( is_null( $fi ) ) {
1804                         wfOut( "WARNING! Column \"$dc[0].$dc[1]\" does not exist but it should! Please report this.\n" );
1805                         continue;
1806                 }
1807                 if ( $fi->is_deferred() && $fi->is_deferrable() ) {
1808                         continue;
1809                 }
1810                 wfOut( "Altering column \"$dc[0].$dc[1]\" to be DEFERRABLE INITIALLY DEFERRED\n" );
1811                 $conname = $fi->conname();
1812                 $clause = $dc[2];
1813                 $command = "ALTER TABLE $dc[0] DROP CONSTRAINT $conname";
1814                 $wgDatabase->query( $command );
1815                 $command = "ALTER TABLE $dc[0] ADD CONSTRAINT $conname FOREIGN KEY ($dc[1]) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
1816                 $wgDatabase->query( $command );
1817         }
1818
1819         # Tweak the page_title tsearch2 trigger to filter out slashes
1820         # This is create or replace, so harmless to call if not needed
1821         $wgDatabase->sourceFile( archive( 'patch-ts2pagetitle.sql' ) );
1822
1823         # # If the server is 8.3 or higher, rewrite the tsearch2 triggers
1824         # # in case they have the old 'default' versions
1825         if ( $numver >= 8.3 ) {
1826                 $wgDatabase->sourceFile( archive( 'patch-tsearch2funcs.sql' ) );
1827         }
1828         return;
1829 }