maintenance/updaters.inc

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup Maintenance
   5  */
   6
   7 if ( !defined( 'MEDIAWIKI' ) ) {
   8         echo "This file is not a valid entry point\n";
   9         exit( 1 );
  10 }
  11
  12 require_once 'convertLinks.inc';
  13 require_once 'userDupes.inc';
  14 require_once 'deleteDefaultMessages.php';
  15 # Extension updates
  16 require_once( "$IP/includes/Hooks.php" );
  17
  18 /**
  19  * List of update functions to call for each DB type, in sequence. First item
  20  * is function name, rest are parameters to pass.
  21  */
  22 $wgUpdates = array(
  23         'mysql' => array(
  24                 // 1.2
  25                 // update_passwords obsolete
  26                 array( 'add_field', 'ipblocks',      'ipb_id',           'patch-ipblocks.sql' ),
  27                 array( 'add_field', 'ipblocks',      'ipb_expiry',       'patch-ipb_expiry.sql' ),
  28                 array( 'do_interwiki_update' ),
  29                 array( 'do_index_update' ),
  30                 // do_linkscc_update obsolete
  31                 array( 'add_table', 'hitcounter',                        'patch-hitcounter.sql' ),
  32                 array( 'add_field', 'recentchanges', 'rc_type',          'patch-rc_type.sql' ),
  33
  34                 // 1.3
  35                 array( 'add_field', 'user',          'user_real_name',   'patch-user-realname.sql' ),
  36                 array( 'add_table', 'querycache',                        'patch-querycache.sql' ),
  37                 array( 'add_table', 'objectcache',                       'patch-objectcache.sql' ),
  38                 array( 'add_table', 'categorylinks',                     'patch-categorylinks.sql' ),
  39                 // do_linkscc_1_3_update obsolete
  40                 array( 'do_old_links_update' ),
  41                 array( 'fix_ancient_imagelinks' ),
  42                 array( 'add_field', 'recentchanges', 'rc_ip',            'patch-rc_ip.sql' ),
  43
  44                 // 1.4
  45                 array( 'do_image_name_unique_update' ),
  46                 array( 'add_field', 'recentchanges', 'rc_id',            'patch-rc_id.sql' ),
  47                 array( 'add_field', 'recentchanges', 'rc_patrolled',     'patch-rc-patrol.sql' ),
  48                 array( 'add_table', 'logging',                           'patch-logging.sql' ),
  49                 // do_user_rights_update obsolete
  50                 array( 'add_field', 'user',          'user_token',       'patch-user_token.sql' ),
  51                 // old, old_articleid, patch-remove-old-title-namespace.sql obsolete
  52                 // user_groups, patch-userlevels.sql obsolete
  53                 // do_group_update() obsolete
  54                 array( 'do_watchlist_update' ),
  55                 array( 'do_user_update' ),
  56                 // do_copy_newtalk_to_watchlist obsolete
  57
  58                 // 1.5
  59                 array( 'do_schema_restructuring' ),
  60                 array( 'add_field', 'logging',       'log_params',       'patch-log_params.sql' ),
  61                 array( 'check_bin', 'logging',       'log_title',        'patch-logging-title.sql', ),
  62                 array( 'add_field', 'archive',       'ar_rev_id',        'patch-archive-rev_id.sql' ),
  63                 array( 'add_field', 'page',          'page_len',         'patch-page_len.sql' ),
  64                 array( 'do_inverse_timestamp' ),
  65                 array( 'do_text_id' ),
  66                 array( 'add_field', 'revision',      'rev_deleted',      'patch-rev_deleted.sql' ),
  67                 array( 'add_field', 'image',         'img_width',        'patch-img_width.sql' ),
  68                 array( 'add_field', 'image',         'img_metadata',     'patch-img_metadata.sql' ),
  69                 array( 'add_field', 'user',          'user_email_token', 'patch-user_email_token.sql' ),
  70                 array( 'add_field', 'archive',       'ar_text_id',       'patch-archive-text_id.sql' ),
  71                 array( 'do_namespace_size' ),
  72                 array( 'add_field', 'image',         'img_media_type',   'patch-img_media_type.sql' ),
  73                 array( 'do_pagelinks_update' ),
  74                 array( 'do_drop_img_type' ),
  75                 array( 'do_user_unique_update' ),
  76                 array( 'do_user_groups_update' ),
  77                 array( 'add_field', 'site_stats',    'ss_total_pages',   'patch-ss_total_articles.sql' ),
  78                 array( 'add_table', 'user_newtalk',                      'patch-usernewtalk2.sql' ),
  79                 array( 'add_table', 'transcache',                        'patch-transcache.sql' ),
  80                 array( 'add_field', 'interwiki',     'iw_trans',         'patch-interwiki-trans.sql' ),
  81                 array( 'add_table', 'trackbacks',                        'patch-trackbacks.sql' ),
  82
  83                 // 1.6
  84                 array( 'do_watchlist_null' ),
  85                 // do_image_index_update obsolete
  86                 array( 'do_logging_timestamp_index' ),
  87                 array( 'add_field', 'ipblocks',        'ipb_range_start',  'patch-ipb_range_start.sql' ),
  88                 array( 'do_page_random_update' ),
  89                 array( 'add_field', 'user',            'user_registration','patch-user_registration.sql' ),
  90                 array( 'do_templatelinks_update' ),
  91                 array( 'add_table', 'externallinks',                       'patch-externallinks.sql' ),
  92                 array( 'add_table', 'job',                                 'patch-job.sql' ),
  93                 array( 'add_field', 'site_stats',      'ss_images',        'patch-ss_images.sql' ),
  94                 array( 'add_table', 'langlinks',                           'patch-langlinks.sql' ),
  95                 array( 'add_table', 'querycache_info',                     'patch-querycacheinfo.sql' ),
  96                 array( 'add_table', 'filearchive',                         'patch-filearchive.sql' ),
  97                 array( 'add_field', 'ipblocks',        'ipb_anon_only',    'patch-ipb_anon_only.sql' ),
  98                 array( 'do_rc_indices_update' ),
  99
 100                 // 1.9
 101                 array( 'add_field', 'user',          'user_newpass_time', 'patch-user_newpass_time.sql' ),
 102                 array( 'add_table', 'redirect',                           'patch-redirect.sql' ),
 103                 array( 'add_table', 'querycachetwo', 'patch-querycachetwo.sql' ),
 104                 array( 'add_field', 'ipblocks',      'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ),
 105                 array( 'do_backlinking_indices_update' ),
 106                 array( 'add_field', 'recentchanges', 'rc_old_len',        'patch-rc_len.sql' ),
 107                 array( 'add_field', 'user',          'user_editcount',    'patch-user_editcount.sql' ),
 108
 109                 // 1.10
 110                 array( 'do_restrictions_update' ),
 111                 array( 'add_field', 'logging',       'log_id',           'patch-log_id.sql' ),
 112                 array( 'add_field', 'revision',      'rev_parent_id',    'patch-rev_parent_id.sql' ),
 113                 array( 'add_field', 'page_restrictions', 'pr_id',        'patch-page_restrictions_sortkey.sql' ),
 114                 array( 'add_field', 'revision',      'rev_len',          'patch-rev_len.sql' ),
 115                 array( 'add_field', 'recentchanges', 'rc_deleted',       'patch-rc_deleted.sql' ),
 116                 array( 'add_field', 'logging',       'log_deleted',      'patch-log_deleted.sql' ),
 117                 array( 'add_field', 'archive',       'ar_deleted',       'patch-ar_deleted.sql' ),
 118                 array( 'add_field', 'ipblocks',      'ipb_deleted',      'patch-ipb_deleted.sql' ),
 119                 array( 'add_field', 'filearchive',   'fa_deleted',       'patch-fa_deleted.sql' ),
 120                 array( 'add_field', 'archive',       'ar_len',           'patch-ar_len.sql' ),
 121
 122                 // 1.11
 123                 array( 'add_field', 'ipblocks',      'ipb_block_email',  'patch-ipb_emailban.sql' ),
 124                 array( 'do_categorylinks_indices_update' ),
 125                 array( 'add_field', 'oldimage',      'oi_metadata',      'patch-oi_metadata.sql'),
 126                 array( 'do_archive_user_index' ),
 127                 array( 'do_image_user_index' ),
 128                 array( 'do_oldimage_user_index' ),
 129                 array( 'add_field', 'archive',       'ar_page_id',       'patch-archive-page_id.sql'),
 130                 array( 'add_field', 'image',         'img_sha1',         'patch-img_sha1.sql' ),
 131
 132                 // 1.12
 133                 array( 'add_table', 'protected_titles',                  'patch-protected_titles.sql' ),
 134
 135                 // 1.13
 136                 array( 'add_field', 'ipblocks',      'ipb_by_text',      'patch-ipb_by_text.sql' ),
 137                 array( 'add_table', 'page_props',                        'patch-page_props.sql' ),
 138                 array( 'add_table', 'updatelog',                         'patch-updatelog.sql' ),
 139                 array( 'add_table', 'category',                          'patch-category.sql' ),
 140                 array( 'do_category_population' ),
 141                 array( 'add_field', 'archive',       'ar_parent_id',     'patch-ar_parent_id.sql'),
 142                 array( 'add_field', 'user_newtalk',  'user_last_timestamp', 'patch-user_last_timestamp.sql'),
 143                 array( 'do_populate_parent_id' ),
 144                 array( 'check_bin', 'protected_titles', 'pt_title',      'patch-pt_title-encoding.sql', ),
 145                 array( 'maybe_do_profiling_memory_update' ),
 146                 array( 'do_filearchive_indices_update' ),
 147
 148                 // 1.14
 149                 array( 'add_field', 'site_stats',     'ss_active_users',  'patch-ss_active_users.sql' ),
 150                 array( 'do_active_users_init' ),
 151                 array( 'add_field', 'ipblocks',     'ipb_allow_usertalk',  'patch-ipb_allow_usertalk.sql' ),
 152
 153                 // 1.15
 154                 array( 'do_unique_pl_tl_il' ),
 155                 array( 'add_table', 'change_tag',                          'patch-change_tag.sql' ),
 156                 array( 'add_table', 'tag_summary',                         'patch-change_tag.sql' ),
 157                 array( 'add_table', 'valid_tag',                           'patch-change_tag.sql' ),
 158
 159                 // 1.16
 160                 array( 'add_table', 'user_properties',             'patch-user_properties.sql' ),
 161                 array( 'add_table', 'log_search',                          'patch-log_search.sql' ),
 162                 array( 'do_log_search_population' ),
 163                 array( 'add_field', 'logging',       'log_user_text',  'patch-log_user_text.sql' ),
 164                 array( 'add_table', 'l10n_cache',              'patch-l10n_cache.sql' ),
 165                 array( 'add_table', 'external_user', 'patch-external_user.sql' ),
 166         ),
 167
 168         'sqlite' => array(
 169                 // 1.14
 170                 array( 'add_field', 'site_stats',     'ss_active_users',  'patch-ss_active_users.sql' ),
 171                 array( 'do_active_users_init' ),
 172                 array( 'add_field', 'ipblocks',     'ipb_allow_usertalk',  'patch-ipb_allow_usertalk.sql' ),
 173                 array( 'sqlite_initial_indexes' ),
 174
 175                 // 1.15
 176                 array( 'add_table', 'change_tag',                          'patch-change_tag.sql' ),
 177                 array( 'add_table', 'tag_summary',                         'patch-change_tag.sql' ),
 178                 array( 'add_table', 'valid_tag',                           'patch-change_tag.sql' ),
 179
 180                 // 1.16
 181                 array( 'add_table', 'user_properties',             'patch-user_properties.sql' ),
 182                 array( 'add_table', 'log_search',                          'patch-log_search.sql' ),
 183                 array( 'do_log_search_population' ),
 184                 array( 'add_field', 'redirect', 'rd_interwiki', 'patch-rd_interwiki.sql' ),
 185                 array( 'add_table', 'l10n_cache',              'patch-l10n_cache.sql' ),
 186         ),
 187 );
 188
 189
 190 # For extensions only, should be populated via hooks
 191 # $wgDBtype should be checked to specifiy the proper file
 192 $wgExtNewTables = array(); // table, dir
 193 $wgExtNewFields = array(); // table, column, dir
 194 $wgExtPGNewFields = array(); // table, column, column attributes; for PostgreSQL
 195 $wgExtPGAlteredFields = array(); // table, column, new type, conversion method; for PostgreSQL
 196 $wgExtNewIndexes = array(); // table, index, dir
 197
 198 # Helper function: check if the given key is present in the updatelog table.
 199 # Obviously, only use this for updates that occur after the updatelog table was
 200 # created!
 201 function update_row_exists( $key ) {
 202         $dbr = wfGetDB( DB_SLAVE );
 203         $row = $dbr->selectRow(
 204                 'updatelog',
 205                 '1',
 206                 array( 'ul_key' => $key ),
 207                 __FUNCTION__
 208         );
 209         return (bool)$row;
 210 }
 211
 212 function rename_table( $from, $to, $patch ) {
 213         global $wgDatabase;
 214         if ( $wgDatabase->tableExists( $from ) ) {
 215                 if ( $wgDatabase->tableExists( $to ) ) {
 216                         wfOut( "...can't move table $from to $to, $to already exists.\n" );
 217                 } else {
 218                         wfOut( "Moving table $from to $to..." );
 219                         dbsource( archive($patch), $wgDatabase );
 220                         wfOut( "ok\n" );
 221                 }
 222         } else {
 223                 // Source table does not exist
 224                 // Renames are done before creations, so this is typical for a new installation
 225                 // Ignore silently
 226         }
 227 }
 228
 229 function add_table( $name, $patch, $fullpath=false ) {
 230         global $wgDatabase;
 231         if ( $wgDatabase->tableExists( $name ) ) {
 232                 wfOut( "...$name table already exists.\n" );
 233         } else {
 234                 wfOut( "Creating $name table..." );
 235                 if( $fullpath ) {
 236                         dbsource( $patch, $wgDatabase );
 237                 } else {
 238                         dbsource( archive($patch), $wgDatabase );
 239                 }
 240                 wfOut( "ok\n" );
 241         }
 242 }
 243
 244 function add_field( $table, $field, $patch, $fullpath=false ) {
 245         global $wgDatabase;
 246         if ( !$wgDatabase->tableExists( $table ) ) {
 247                 wfOut( "...$table table does not exist, skipping new field patch\n" );
 248         } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
 249                 wfOut( "...have $field field in $table table.\n" );
 250         } else {
 251                 wfOut( "Adding $field field to table $table..." );
 252                 if( $fullpath ) {
 253                         dbsource( $patch, $wgDatabase );
 254                 } else {
 255                         dbsource( archive($patch), $wgDatabase );
 256                 }
 257                 wfOut( "ok\n" );
 258         }
 259 }
 260
 261 function add_index( $table, $index, $patch, $fullpath=false ) {
 262         global $wgDatabase;
 263         if( $wgDatabase->indexExists( $table, $index ) ) {
 264                 wfOut( "...$index key already set on $table table.\n" );
 265         } else {
 266                 wfOut( "Adding $index key to table $table... " );
 267                 if( $fullpath ) {
 268                         dbsource( $patch, $wgDatabase );
 269                 } else {
 270                         dbsource( archive($patch), $wgDatabase );
 271                 }
 272                 wfOut( "ok\n" );
 273         }
 274 }
 275
 276 function do_interwiki_update() {
 277         # Check that interwiki table exists; if it doesn't source it
 278         global $wgDatabase, $IP;
 279         if( $wgDatabase->tableExists( "interwiki" ) ) {
 280                 wfOut( "...already have interwiki table\n" );
 281                 return true;
 282         }
 283         wfOut( "Creating interwiki table: " );
 284         dbsource( archive("patch-interwiki.sql") );
 285         wfOut( "ok\n" );
 286         wfOut( "Adding default interwiki definitions: " );
 287         dbsource( "$IP/maintenance/interwiki.sql" );
 288         wfOut( "ok\n" );
 289 }
 290
 291 function do_index_update() {
 292         # Check that proper indexes are in place
 293         global $wgDatabase;
 294         $meta = $wgDatabase->fieldInfo( "recentchanges", "rc_timestamp" );
 295         if( !$meta->isMultipleKey() ) {
 296                 wfOut( "Updating indexes to 20031107: " );
 297                 dbsource( archive("patch-indexes.sql") );
 298                 wfOut( "ok\n" );
 299                 return true;
 300         }
 301         wfOut( "...indexes seem up to 20031107 standards\n" );
 302         return false;
 303 }
 304
 305 function do_image_index_update() {
 306         global $wgDatabase;
 307
 308         $meta = $wgDatabase->fieldInfo( "image", "img_major_mime" );
 309         if( !$meta->isMultipleKey() ) {
 310                 wfOut( "Updating indexes to 20050912: " );
 311                 dbsource( archive("patch-mimesearch-indexes.sql") );
 312                 wfOut( "ok\n" );
 313                 return true;
 314         }
 315         wfOut( "...indexes seem up to 20050912 standards\n" );
 316         return false;
 317 }
 318
 319 function do_image_name_unique_update() {
 320         global $wgDatabase;
 321         if( $wgDatabase->indexExists( 'image', 'PRIMARY' ) ) {
 322                 wfOut( "...image primary key already set.\n" );
 323         } else {
 324                 wfOut( "Making img_name the primary key... " );
 325                 dbsource( archive("patch-image_name_primary.sql"), $wgDatabase );
 326                 wfOut( "ok\n" );
 327         }
 328 }
 329
 330 function do_logging_timestamp_index() {
 331         global $wgDatabase;
 332         if( $wgDatabase->indexExists( 'logging', 'times' ) ) {
 333                 wfOut( "...timestamp key on logging already exists.\n" );
 334         } else {
 335                 wfOut( "Adding timestamp key on logging table... " );
 336                 dbsource( archive("patch-logging-times-index.sql"), $wgDatabase );
 337                 wfOut( "ok\n" );
 338         }
 339 }
 340
 341 function do_archive_user_index() {
 342         global $wgDatabase;
 343         if( $wgDatabase->indexExists( 'archive', 'usertext_timestamp' ) ) {
 344                 wfOut( "...usertext,timestamp key on archive already exists.\n" );
 345         } else {
 346                 wfOut( "Adding usertext,timestamp key on archive table... " );
 347                 dbsource( archive("patch-archive-user-index.sql"), $wgDatabase );
 348                 wfOut( "ok\n" );
 349         }
 350 }
 351
 352 function do_image_user_index() {
 353         global $wgDatabase;
 354         if( $wgDatabase->indexExists( 'image', 'img_usertext_timestamp' ) ) {
 355                 wfOut( "...usertext,timestamp key on image already exists.\n" );
 356         } else {
 357                 wfOut( "Adding usertext,timestamp key on image table... " );
 358                 dbsource( archive("patch-image-user-index.sql"), $wgDatabase );
 359                 wfOut( "ok\n" );
 360         }
 361 }
 362
 363 function do_oldimage_user_index() {
 364         global $wgDatabase;
 365         if( $wgDatabase->indexExists( 'oldimage', 'oi_usertext_timestamp' ) ) {
 366                 wfOut( "...usertext,timestamp key on oldimage already exists.\n" );
 367         } else {
 368                 wfOut( "Adding usertext,timestamp key on oldimage table... " );
 369                 dbsource( archive("patch-oldimage-user-index.sql"), $wgDatabase );
 370                 wfOut( "ok\n" );
 371         }
 372 }
 373
 374 function do_watchlist_update() {
 375         global $wgDatabase;
 376         $fname = 'do_watchlist_update';
 377         if( $wgDatabase->fieldExists( 'watchlist', 'wl_notificationtimestamp' ) ) {
 378                 wfOut( "The watchlist table is already set up for email notification.\n" );
 379         } else {
 380                 wfOut( "Adding wl_notificationtimestamp field for email notification management." );
 381                 /* ALTER TABLE watchlist ADD (wl_notificationtimestamp varchar(14) binary NOT NULL default '0'); */
 382                 dbsource( archive( 'patch-email-notification.sql' ), $wgDatabase );
 383                 wfOut( "ok\n" );
 384         }
 385         # Check if we need to add talk page rows to the watchlist
 386         $talk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', $fname );
 387         $nontalk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', $fname );
 388         if ( $talk != $nontalk ) {
 389                 wfOut( "Adding missing watchlist talk page rows... " );
 390                 flush();
 391
 392                 $wgDatabase->insertSelect( 'watchlist', 'watchlist',
 393                         array(
 394                                 'wl_user' => 'wl_user',
 395                                 'wl_namespace' => 'wl_namespace | 1',
 396                                 'wl_title' => 'wl_title',
 397                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 398                         ), array( 'NOT (wl_namespace & 1)' ), $fname, 'IGNORE' );
 399                 wfOut( "ok\n" );
 400         } else {
 401                 wfOut( "...watchlist talk page rows already present\n" );
 402         }
 403 }
 404
 405 function do_copy_newtalk_to_watchlist() {
 406         global $wgDatabase;
 407         global $wgCommandLineMode;      # this needs to be saved while getID() and getName() are called
 408
 409         $res = $wgDatabase->safeQuery( 'SELECT user_id, user_ip FROM !',
 410                 $wgDatabase->tableName( 'user_newtalk' ) );
 411         $num_newtalks=$wgDatabase->numRows($res);
 412         wfOut( "Now converting $num_newtalks user_newtalk entries to watchlist table entries ... \n" );
 413
 414         $user = new User();
 415         for ( $i = 1; $i <= $num_newtalks; $i++ ) {
 416                 $wluser = $wgDatabase->fetchObject( $res );
 417                 if ($wluser->user_id == 0) { # anonymous users ... have IP numbers as "names"
 418                         if ($user->isIP($wluser->user_ip)) { # do only if it really looks like an IP number (double checked)
 419                                 $wgDatabase->replace( 'watchlist',
 420                                         array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
 421                                           array('wl_user'                       => 0,
 422                                                 'wl_namespace'                  => NS_USER_TALK,
 423                                                 'wl_title'                      => $wluser->user_ip,
 424                                                 'wl_notificationtimestamp'      => '19700101000000'
 425                                                 ), 'updaters.inc::do_watchlist_update2'
 426                                         );
 427                         }
 428                 } else { # normal users ... have user_ids
 429                         $user->setID($wluser->user_id);
 430                         $wgDatabase->replace( 'watchlist',
 431                                 array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
 432                                   array('wl_user'                       => $user->getID(),
 433                                         'wl_namespace'                  => NS_USER_TALK,
 434                                         'wl_title'                      => $user->getName(),
 435                                         'wl_notificationtimestamp'      => '19700101000000'
 436                                         ), 'updaters.inc::do_watchlist_update3'
 437                                 );
 438                 }
 439         }
 440         wfOut( "Done.\n" );
 441 }
 442
 443
 444 function do_user_update() {
 445         global $wgDatabase;
 446         if( $wgDatabase->fieldExists( 'user', 'user_emailauthenticationtimestamp' ) ) {
 447                 wfOut( "User table contains old email authentication field. Dropping... " );
 448                 dbsource( archive( 'patch-email-authentication.sql' ), $wgDatabase );
 449                 wfOut( "ok\n" );
 450         } else {
 451                 wfOut( "...user table does not contain old email authentication field.\n" );
 452         }
 453 }
 454
 455 /**
 456  * 1.4 betas were missing the 'binary' marker from logging.log_title,
 457  * which causes a collation mismatch error on joins in MySQL 4.1.
 458  */
 459 function check_bin( $table, $field, $patchFile ) {
 460         global $wgDatabase, $wgDBtype;
 461         if ($wgDBtype != 'mysql')
 462                 return;
 463         $tableName = $wgDatabase->tableName( $table );
 464         $res = $wgDatabase->query( "SELECT $field FROM $tableName LIMIT 0" );
 465         $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 466         $wgDatabase->freeResult( $res );
 467
 468         if( in_array( 'binary', $flags ) ) {
 469                 wfOut( "$table table has correct $field encoding.\n" );
 470         } else {
 471                 wfOut( "Fixing $field encoding on $table table... " );
 472                 dbsource( archive( $patchFile ), $wgDatabase );
 473                 wfOut( "ok\n" );
 474         }
 475 }
 476
 477 function do_schema_restructuring() {
 478         global $wgDatabase;
 479         $fname="do_schema_restructuring";
 480         if ( $wgDatabase->tableExists( 'page' ) ) {
 481                 wfOut( "...page table already exists.\n" );
 482         } else {
 483                 wfOut( "...converting from cur/old to page/revision/text DB structure.\n" );
 484                 wfOut( wfTimestamp( TS_DB ) );
 485                 wfOut( "......checking for duplicate entries.\n" );
 486
 487                 list ($cur, $old, $page, $revision, $text) = $wgDatabase->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 488
 489                 $rows = $wgDatabase->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 490                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", $fname );
 491
 492                 if ( $wgDatabase->numRows( $rows ) > 0 ) {
 493                         wfOut( wfTimestamp( TS_DB ) );
 494                         wfOut( "......<b>Found duplicate entries</b>\n" );
 495                         wfOut( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 496                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 497                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 498                                         $duplicate[$row->cur_namespace] = array();
 499                                 }
 500                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 501                                 wfOut( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 502                         }
 503                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 504                         $firstCond = true;
 505                         foreach ( $duplicate as $ns => $titles ) {
 506                                 if ( $firstCond ) {
 507                                         $firstCond = false;
 508                                 } else {
 509                                         $sql .= ' OR ';
 510                                 }
 511                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 512                                 $first = true;
 513                                 foreach ( $titles as $t ) {
 514                                         if ( $first ) {
 515                                                 $sql .= $wgDatabase->addQuotes( $t );
 516                                                 $first = false;
 517                                         } else {
 518                                                 $sql .= ', ' . $wgDatabase->addQuotes( $t );
 519                                         }
 520                                 }
 521                                 $sql .= ") ) \n";
 522                         }
 523                         # By sorting descending, the most recent entry will be the first in the list.
 524                         # All following entries will be deleted by the next while-loop.
 525                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 526
 527                         $rows = $wgDatabase->query( $sql, $fname );
 528
 529                         $prev_title = $prev_namespace = false;
 530                         $deleteId = array();
 531
 532                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 533                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 534                                         $deleteId[] = $row->cur_id;
 535                                 }
 536                                 $prev_title     = $row->cur_title;
 537                                 $prev_namespace = $row->cur_namespace;
 538                         }
 539                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 540                         $rows = $wgDatabase->query( $sql, $fname );
 541                         wfOut( wfTimestamp( TS_DB ) );
 542                         wfOut( "......<b>Deleted</b> ".$wgDatabase->affectedRows()." records.\n" );
 543                 }
 544
 545
 546                 wfOut( wfTimestamp( TS_DB ) );
 547                 wfOut( "......Creating tables.\n" );
 548                 $wgDatabase->query("CREATE TABLE $page (
 549                         page_id int(8) unsigned NOT NULL auto_increment,
 550                         page_namespace int NOT NULL,
 551                         page_title varchar(255) binary NOT NULL,
 552                         page_restrictions tinyblob NOT NULL,
 553                         page_counter bigint(20) unsigned NOT NULL default '0',
 554                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 555                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 556                         page_random real unsigned NOT NULL,
 557                         page_touched char(14) binary NOT NULL default '',
 558                         page_latest int(8) unsigned NOT NULL,
 559                         page_len int(8) unsigned NOT NULL,
 560
 561                         PRIMARY KEY page_id (page_id),
 562                         UNIQUE INDEX name_title (page_namespace,page_title),
 563                         INDEX (page_random),
 564                         INDEX (page_len)
 565                         ) ENGINE=InnoDB", $fname );
 566                 $wgDatabase->query("CREATE TABLE $revision (
 567                         rev_id int(8) unsigned NOT NULL auto_increment,
 568                         rev_page int(8) unsigned NOT NULL,
 569                         rev_comment tinyblob NOT NULL,
 570                         rev_user int(5) unsigned NOT NULL default '0',
 571                         rev_user_text varchar(255) binary NOT NULL default '',
 572                         rev_timestamp char(14) binary NOT NULL default '',
 573                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 574                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 575                         rev_len int(8) unsigned,
 576                         rev_parent_id int(8) unsigned default NULL,
 577                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 578                         UNIQUE INDEX rev_id (rev_id),
 579                         INDEX rev_timestamp (rev_timestamp),
 580                         INDEX page_timestamp (rev_page,rev_timestamp),
 581                         INDEX user_timestamp (rev_user,rev_timestamp),
 582                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 583                         ) ENGINE=InnoDB", $fname );
 584
 585                 wfOut( wfTimestamp( TS_DB ) );
 586                 wfOut( "......Locking tables.\n" );
 587                 $wgDatabase->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", $fname );
 588
 589                 $maxold = intval( $wgDatabase->selectField( 'old', 'max(old_id)', '', $fname ) );
 590                 wfOut( wfTimestamp( TS_DB ) );
 591                 wfOut( "......maxold is {$maxold}\n" );
 592
 593                 wfOut( wfTimestamp( TS_DB ) );
 594                 global $wgLegacySchemaConversion;
 595                 if( $wgLegacySchemaConversion ) {
 596                         // Create HistoryBlobCurStub entries.
 597                         // Text will be pulled from the leftover 'cur' table at runtime.
 598                         wfOut( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 599                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 600                         $cur_flags = "'object'";
 601                 } else {
 602                         // Copy all cur text in immediately: this may take longer but avoids
 603                         // having to keep an extra table around.
 604                         wfOut( "......Moving text from cur.\n" );
 605                         $cur_text = 'cur_text';
 606                         $cur_flags = "''";
 607                 }
 608                 $wgDatabase->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 609                                 old_timestamp, old_minor_edit, old_flags)
 610                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 611                         FROM $cur", $fname );
 612
 613                 wfOut( wfTimestamp( TS_DB ) );
 614                 wfOut( "......Setting up revision table.\n" );
 615                 $wgDatabase->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 616                                 rev_minor_edit)
 617                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 618                                 old_timestamp, old_minor_edit
 619                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", $fname );
 620
 621                 wfOut( wfTimestamp( TS_DB ) );
 622                 wfOut( "......Setting up page table.\n" );
 623                 $wgDatabase->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 624                                 page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 625                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 626                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 627                         FROM $cur,$revision
 628                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", $fname );
 629
 630                 wfOut( wfTimestamp( TS_DB ) );
 631                 wfOut( "......Unlocking tables.\n" );
 632                 $wgDatabase->query( "UNLOCK TABLES", $fname );
 633
 634                 wfOut( wfTimestamp( TS_DB ) );
 635                 wfOut( "......Renaming old.\n" );
 636                 $wgDatabase->query( "ALTER TABLE $old RENAME TO $text", $fname );
 637
 638                 wfOut( wfTimestamp( TS_DB ) );
 639                 wfOut( "...done.\n" );
 640         }
 641 }
 642
 643 function do_inverse_timestamp() {
 644         global $wgDatabase;
 645         if( $wgDatabase->fieldExists( 'revision', 'inverse_timestamp' ) ) {
 646                 wfOut( "Removing revision.inverse_timestamp and fixing indexes... " );
 647                 dbsource( archive( 'patch-inverse_timestamp.sql' ), $wgDatabase );
 648                 wfOut( "ok\n" );
 649         } else {
 650                 wfOut( "revision timestamp indexes already up to 2005-03-13\n" );
 651         }
 652 }
 653
 654 function do_text_id() {
 655         global $wgDatabase;
 656         if( $wgDatabase->fieldExists( 'revision', 'rev_text_id' ) ) {
 657                 wfOut( "...rev_text_id already in place.\n" );
 658         } else {
 659                 wfOut( "Adding rev_text_id field... " );
 660                 dbsource( archive( 'patch-rev_text_id.sql' ), $wgDatabase );
 661                 wfOut( "ok\n" );
 662         }
 663 }
 664
 665 function do_namespace_size() {
 666         $tables = array(
 667                 'page'          => 'page',
 668                 'archive'       => 'ar',
 669                 'recentchanges' => 'rc',
 670                 'watchlist'     => 'wl',
 671                 'querycache'    => 'qc',
 672                 'logging'       => 'log',
 673         );
 674         foreach( $tables as $table => $prefix ) {
 675                 do_namespace_size_on( $table, $prefix );
 676                 flush();
 677         }
 678 }
 679
 680 function do_namespace_size_on( $table, $prefix ) {
 681         global $wgDatabase, $wgDBtype;
 682         if ($wgDBtype != 'mysql')
 683                 return;
 684         $field = $prefix . '_namespace';
 685
 686         $tablename = $wgDatabase->tableName( $table );
 687         $result = $wgDatabase->query( "SHOW COLUMNS FROM $tablename LIKE '$field'" );
 688         $info = $wgDatabase->fetchObject( $result );
 689         $wgDatabase->freeResult( $result );
 690
 691         if( substr( $info->Type, 0, 3 ) == 'int' ) {
 692                 wfOut( "...$field is already a full int ($info->Type).\n" );
 693         } else {
 694                 wfOut( "Promoting $field from $info->Type to int... " );
 695
 696                 $sql = "ALTER TABLE $tablename MODIFY $field int NOT NULL";
 697                 $wgDatabase->query( $sql );
 698
 699                 wfOut( "ok\n" );
 700         }
 701 }
 702
 703 function do_pagelinks_update() {
 704         global $wgDatabase;
 705         if( $wgDatabase->tableExists( 'pagelinks' ) ) {
 706                 wfOut( "...already have pagelinks table.\n" );
 707         } else {
 708                 wfOut( "Converting links and brokenlinks tables to pagelinks... " );
 709                 dbsource( archive( 'patch-pagelinks.sql' ), $wgDatabase );
 710                 wfOut( "ok\n" );
 711                 flush();
 712
 713                 global $wgCanonicalNamespaceNames;
 714                 foreach( $wgCanonicalNamespaceNames as $ns => $name ) {
 715                         if( $ns != 0 ) {
 716                                 do_pagelinks_namespace( $ns );
 717                         }
 718                 }
 719         }
 720 }
 721
 722 function do_pagelinks_namespace( $namespace ) {
 723         global $wgDatabase, $wgContLang;
 724
 725         $ns = intval( $namespace );
 726         wfOut( "Cleaning up broken links for namespace $ns... " );
 727
 728         $pagelinks = $wgDatabase->tableName( 'pagelinks' );
 729         $name = $wgContLang->getNsText( $ns );
 730         $prefix = $wgDatabase->strencode( $name );
 731         $likeprefix = str_replace( '_', '\\_', $prefix);
 732
 733         $sql = "UPDATE $pagelinks
 734                    SET pl_namespace=$ns,
 735                        pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 736                  WHERE pl_namespace=0
 737                    AND pl_title LIKE '$likeprefix:%'";
 738
 739         $wgDatabase->query( $sql, 'do_pagelinks_namespace' );
 740         wfOut( "ok\n" );
 741 }
 742
 743 function do_drop_img_type() {
 744         global $wgDatabase;
 745
 746         if( $wgDatabase->fieldExists( 'image', 'img_type' ) ) {
 747                 wfOut( "Dropping unused img_type field in image table... " );
 748                 dbsource( archive( 'patch-drop_img_type.sql' ), $wgDatabase );
 749                 wfOut( "ok\n" );
 750         } else {
 751                 wfOut( "No img_type field in image table; Good.\n" );
 752         }
 753 }
 754
 755 function do_old_links_update() {
 756         global $wgDatabase;
 757         if( $wgDatabase->tableExists( 'pagelinks' ) ) {
 758                 wfOut( "Already have pagelinks; skipping old links table updates.\n" );
 759         } else {
 760                 convertLinks(); flush();
 761         }
 762 }
 763
 764 function fix_ancient_imagelinks() {
 765         global $wgDatabase;
 766         $info = $wgDatabase->fieldInfo( 'imagelinks', 'il_from' );
 767         if ( $info && $info->type() === 'string' ) {
 768                 wfOut( "Fixing ancient broken imagelinks table.\n" );
 769                 wfOut( "NOTE: you will have to run maintenance/refreshLinks.php after this.\n" );
 770                 dbsource( archive( 'patch-fix-il_from.sql' ) );
 771                 wfOut( "ok\n" );
 772         } else {
 773                 wfOut( "...il_from OK\n" );
 774         }
 775 }
 776
 777 function do_user_unique_update() {
 778         global $wgDatabase;
 779         $duper = new UserDupes( $wgDatabase );
 780         if( $duper->hasUniqueIndex() ) {
 781                 wfOut( "Already have unique user_name index.\n" );
 782         } else {
 783                 if( !$duper->clearDupes() ) {
 784                         wfOut( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 785                 }
 786                 wfOut( "Adding unique index on user_name... " );
 787                 dbsource( archive( 'patch-user_nameindex.sql' ), $wgDatabase );
 788                 wfOut( "ok\n" );
 789         }
 790 }
 791
 792 function do_user_groups_update() {
 793         $fname = 'do_user_groups_update';
 794         global $wgDatabase;
 795
 796         if( $wgDatabase->tableExists( 'user_groups' ) ) {
 797                 wfOut( "...user_groups table already exists.\n" );
 798                 return do_user_groups_reformat();
 799         }
 800
 801         wfOut( "Adding user_groups table... " );
 802         dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
 803         wfOut( "ok\n" );
 804
 805         if( !$wgDatabase->tableExists( 'user_rights' ) ) {
 806                 if( $wgDatabase->fieldExists( 'user', 'user_rights' ) ) {
 807                         wfOut( "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion..." );
 808                         dbsource( archive( 'patch-user_rights.sql' ), $wgDatabase );
 809                         wfOut( "ok\n" );
 810                 } else {
 811                         wfOut( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 812                         wfOut( "*** You may need to manually configure some sysops by manipulating\n" );
 813                         wfOut( "*** the user_groups table.\n" );
 814                         return;
 815                 }
 816         }
 817
 818         wfOut( "Converting user_rights table to user_groups... " );
 819         $result = $wgDatabase->select( 'user_rights',
 820                 array( 'ur_user', 'ur_rights' ),
 821                 array( "ur_rights != ''" ),
 822                 $fname );
 823
 824         while( $row = $wgDatabase->fetchObject( $result ) ) {
 825                 $groups = array_unique(
 826                         array_map( 'trim',
 827                                 explode( ',', $row->ur_rights ) ) );
 828
 829                 foreach( $groups as $group ) {
 830                         $wgDatabase->insert( 'user_groups',
 831                                 array(
 832                                         'ug_user'  => $row->ur_user,
 833                                         'ug_group' => $group ),
 834                                 $fname );
 835                 }
 836         }
 837         $wgDatabase->freeResult( $result );
 838         wfOut( "ok\n" );
 839 }
 840
 841 function do_user_groups_reformat() {
 842         # Check for bogus formats from previous 1.5 alpha code.
 843         global $wgDatabase;
 844         $info = $wgDatabase->fieldInfo( 'user_groups', 'ug_group' );
 845
 846         if( $info->type() == 'int' ) {
 847                 $oldug = $wgDatabase->tableName( 'user_groups' );
 848                 $newug = $wgDatabase->tableName( 'user_groups_bogus' );
 849                 wfOut( "user_groups is in bogus intermediate format. Renaming to $newug... " );
 850                 $wgDatabase->query( "ALTER TABLE $oldug RENAME TO $newug" );
 851                 wfOut( "ok\n" );
 852
 853                 wfOut( "Re-adding fresh user_groups table... " );
 854                 dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
 855                 wfOut( "ok\n" );
 856
 857                 wfOut( "***\n" );
 858                 wfOut( "*** WARNING: You will need to manually fix up user permissions in the user_groups\n" );
 859                 wfOut( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 860                 wfOut( "***\n" );
 861         } else {
 862                 wfOut( "...user_groups is in current format.\n" );
 863         }
 864
 865 }
 866
 867 function do_watchlist_null() {
 868         # Make sure wl_notificationtimestamp can be NULL,
 869         # and update old broken items.
 870         global $wgDatabase;
 871         $info = $wgDatabase->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 872
 873         if( !$info->nullable() ) {
 874                 wfOut( "Making wl_notificationtimestamp nullable... " );
 875                 dbsource( archive( 'patch-watchlist-null.sql' ), $wgDatabase );
 876                 wfOut( "ok\n" );
 877         } else {
 878                 wfOut( "...wl_notificationtimestamp is already nullable.\n" );
 879         }
 880
 881 }
 882
 883 /**
 884  * @bug 3946
 885  */
 886 function do_page_random_update() {
 887         global $wgDatabase;
 888
 889         wfOut( "Setting page_random to a random value on rows where it equals 0..." );
 890
 891         $page = $wgDatabase->tableName( 'page' );
 892         $wgDatabase->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", 'do_page_random_update' );
 893         $rows = $wgDatabase->affectedRows();
 894
 895         wfOut( "changed $rows rows\n" );
 896 }
 897
 898 function do_templatelinks_update() {
 899         global $wgDatabase, $wgLoadBalancer;
 900         $fname = 'do_templatelinks_update';
 901
 902         if ( $wgDatabase->tableExists( 'templatelinks' ) ) {
 903                 wfOut( "...templatelinks table already exists\n" );
 904                 return;
 905         }
 906         wfOut( "Creating templatelinks table...\n" );
 907         dbsource( archive('patch-templatelinks.sql'), $wgDatabase );
 908         wfOut( "Populating...\n" );
 909         if ( isset( $wgLoadBalancer ) && $wgLoadBalancer->getServerCount() > 1 ) {
 910                 // Slow, replication-friendly update
 911                 $res = $wgDatabase->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 912                         array( 'pl_namespace' => NS_TEMPLATE ), $fname );
 913                 $count = 0;
 914                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
 915                         $count = ($count + 1) % 100;
 916                         if ( $count == 0 ) {
 917                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
 918                                         wfWaitForSlaves( 10 );
 919                                 } else {
 920                                         sleep( 1 );
 921                                 }
 922                         }
 923                         $wgDatabase->insert( 'templatelinks',
 924                                 array(
 925                                         'tl_from' => $row->pl_from,
 926                                         'tl_namespace' => $row->pl_namespace,
 927                                         'tl_title' => $row->pl_title,
 928                                 ), $fname
 929                         );
 930
 931                 }
 932                 $wgDatabase->freeResult( $res );
 933         } else {
 934                 // Fast update
 935                 $wgDatabase->insertSelect( 'templatelinks', 'pagelinks',
 936                         array(
 937                                 'tl_from' => 'pl_from',
 938                                 'tl_namespace' => 'pl_namespace',
 939                                 'tl_title' => 'pl_title'
 940                         ), array(
 941                                 'pl_namespace' => 10
 942                         ), $fname
 943                 );
 944         }
 945         wfOut( "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n" );
 946 }
 947
 948 // Add index on ( rc_namespace, rc_user_text ) [Jul. 2006]
 949 // Add index on ( rc_user_text, rc_timestamp ) [Nov. 2006]
 950 function do_rc_indices_update() {
 951         global $wgDatabase;
 952         wfOut( "Checking for additional recent changes indices...\n" );
 953
 954         $indexes = array(
 955                 'rc_ns_usertext' => 'patch-recentchanges-utindex.sql',
 956                 'rc_user_text' => 'patch-rc_user_text-index.sql',
 957         );
 958
 959         foreach( $indexes as $index => $patch ) {
 960                 $info = $wgDatabase->indexInfo( 'recentchanges', $index, __METHOD__ );
 961                 if( !$info ) {
 962                         wfOut( "...index `{$index}` not found; adding..." );
 963                         dbsource( archive( $patch ) );
 964                         wfOut( "done.\n" );
 965                 } else {
 966                         wfOut( "...index `{$index}` seems ok.\n" );
 967                 }
 968         }
 969 }
 970
 971 function index_has_field($table, $index, $field) {
 972         global $wgDatabase;
 973         wfOut( "Checking if $table index $index includes field $field...\n" );
 974         $info = $wgDatabase->indexInfo( $table, $index, __METHOD__ );
 975         if( $info ) {
 976                 foreach($info as $row) {
 977                         if($row->Column_name == $field) {
 978                                 wfOut( "...index $index on table $table seems to be ok\n" );
 979                                 return true;
 980                         }
 981                 }
 982         }
 983         wfOut( "...index $index on table $table has no field $field; adding\n" );
 984         return false;
 985 }
 986
 987 function do_backlinking_indices_update() {
 988         wfOut( "Checking for backlinking indices...\n" );
 989         if (!index_has_field('pagelinks', 'pl_namespace', 'pl_from') ||
 990                 !index_has_field('templatelinks', 'tl_namespace', 'tl_from') ||
 991                 !index_has_field('imagelinks', 'il_to', 'il_from'))
 992         {
 993                 dbsource( archive( 'patch-backlinkindexes.sql' ) );
 994                 wfOut( "...backlinking indices updated\n" );
 995         }
 996 }
 997
 998 function do_categorylinks_indices_update() {
 999         wfOut( "Checking for categorylinks indices...\n" );
1000         if (!index_has_field('categorylinks', 'cl_sortkey', 'cl_from'))
1001         {
1002                 dbsource( archive( 'patch-categorylinksindex.sql' ) );
1003                 wfOut( "...categorylinks indices updated\n" );
1004         }
1005 }
1006
1007 function do_filearchive_indices_update() {
1008         global $wgDatabase;
1009         wfOut( "Checking filearchive indices...\n" );
1010         $info = $wgDatabase->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
1011         if ( !$info )
1012         {
1013                 dbsource( archive( 'patch-filearchive-user-index.sql' ) );
1014                 wfOut( "...filearchive indices updated\n" );
1015         }
1016 }
1017
1018 function maybe_do_profiling_memory_update() {
1019         global $wgDatabase;
1020         if ( !$wgDatabase->tableExists( 'profiling' ) ) {
1021                 // Simply ignore
1022         } elseif ( $wgDatabase->fieldExists( 'profiling', 'pf_memory' ) ) {
1023                 wfOut( "profiling table has pf_memory field.\n" );
1024         } else {
1025                 wfOut( "Adding pf_memory field to table profiling..." );
1026                 dbsource( archive( 'patch-profiling-memory.sql' ), $wgDatabase );
1027                 wfOut( "ok\n" );
1028         }
1029 }
1030
1031 function do_stats_init() {
1032         // Sometimes site_stats table is not properly populated.
1033         global $wgDatabase;
1034         wfOut( "Checking site_stats row..." );
1035         $row = $wgDatabase->selectRow( 'site_stats', '*', array( 'ss_row_id' => 1 ), __METHOD__ );
1036         if( $row === false ) {
1037                 wfOut( "data is missing! rebuilding...\n" );
1038         } elseif ( isset( $row->site_stats ) && $row->ss_total_pages == -1 ) {
1039                 wfOut( "missing ss_total_pages, rebuilding...\n" );
1040         } else {
1041                 wfOut( "ok.\n" );
1042                 return;
1043         }
1044
1045         global $IP;
1046         require_once "$IP/maintenance/initStats.inc";
1047         wfInitStats();
1048 }
1049
1050 function do_active_users_init() {
1051         global $wgDatabase;
1052         $activeUsers = $wgDatabase->selectField( 'site_stats', 'ss_active_users', false, __METHOD__ );
1053         if( $activeUsers == -1 ) {
1054                 $activeUsers = $wgDatabase->selectField( 'recentchanges',
1055                         'COUNT( DISTINCT rc_user_text )',
1056                         array( 'rc_user != 0', 'rc_bot' => 0, "rc_log_type != 'newusers'" ), __METHOD__
1057                 );
1058                 $wgDatabase->update( 'site_stats',
1059                         array( 'ss_active_users' => intval($activeUsers) ),
1060                         array( 'ss_row_id' => 1 ), __METHOD__, array( 'LIMIT' => 1 )
1061                 );
1062         }
1063         wfOut( "...ss_active_users user count set...\n" );
1064 }
1065
1066 function purge_cache() {
1067         global $wgDatabase;
1068         # We can't guarantee that the user will be able to use TRUNCATE,
1069         # but we know that DELETE is available to us
1070         wfOut( "Purging caches..." );
1071         $wgDatabase->delete( 'objectcache', '*', __METHOD__ );
1072         wfOut( "done.\n" );
1073 }
1074
1075 function do_all_updates( $shared = false, $purge = true ) {
1076         global $wgNewTables, $wgNewFields, $wgRenamedTables, $wgSharedDB, $wgSharedTables, $wgDatabase, $wgDBtype, $IP;
1077
1078         wfRunHooks('LoadExtensionSchemaUpdates');
1079
1080         $doUser = $shared ? $wgSharedDB && in_array('user', $wgSharedTables) : !$wgSharedDB || !in_array('user', $wgSharedTables);
1081
1082         if ($wgDBtype === 'postgres') {
1083                 do_postgres_updates();
1084                 return;
1085         }
1086
1087         # Run core updates in sequence...
1088         global $wgUpdates;
1089         if ( isset( $wgUpdates[$wgDBtype] ) ) {
1090                 foreach( $wgUpdates[$wgDBtype] as $params ) {
1091                         $func = array_shift( $params );
1092                         call_user_func_array( $func, $params );
1093                         flush();
1094                 }
1095         }
1096
1097         /// @fixme clean up this mess too!
1098         global $wgExtNewTables, $wgExtNewFields, $wgExtNewIndexes;
1099         # Add missing extension tables
1100         foreach ( $wgExtNewTables as $tableRecord ) {
1101                 add_table( $tableRecord[0], $tableRecord[1], true );
1102                 flush();
1103         }
1104         # Add missing extension fields
1105         foreach ( $wgExtNewFields as $fieldRecord ) {
1106                 if ( $fieldRecord[0] != 'user' || $doUser ) {
1107                         add_field( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1108                 }
1109                 flush();
1110         }
1111         # Add missing extension indexes
1112         foreach ( $wgExtNewIndexes as $fieldRecord ) {
1113                 add_index( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1114                 flush();
1115         }
1116
1117
1118         wfOut( "Deleting old default messages (this may take a long time!)..." );
1119         deleteDefaultMessages();
1120         wfOut( "Done\n" );
1121
1122         do_stats_init();
1123
1124         if( $purge ) {
1125                 purge_cache();
1126         }
1127 }
1128
1129 function archive($name) {
1130         global $wgDBtype, $IP;
1131         if ( file_exists( "$IP/maintenance/$wgDBtype/archives/$name" ) ) {
1132                 return "$IP/maintenance/$wgDBtype/archives/$name";
1133         } else {
1134                 return "$IP/maintenance/archives/$name";
1135         }
1136 }
1137
1138 function do_restrictions_update() {
1139         # Adding page_restrictions table, obsoleting page.page_restrictions.
1140         #  Migrating old restrictions to new table
1141         # -- Andrew Garrett, January 2007.
1142
1143         global $wgDatabase;
1144
1145         $name = 'page_restrictions';
1146         $patch = 'patch-page_restrictions.sql';
1147         $patch2 = 'patch-page_restrictions_sortkey.sql';
1148
1149         if ( $wgDatabase->tableExists( $name ) ) {
1150                 wfOut( "...$name table already exists.\n" );
1151         } else {
1152                 wfOut( "Creating $name table..." );
1153                 dbsource( archive($patch), $wgDatabase );
1154                 dbsource( archive($patch2), $wgDatabase );
1155                 wfOut( "ok\n" );
1156
1157                 wfOut( "Migrating old restrictions to new table..." );
1158
1159                 $res = $wgDatabase->select( 'page', array( 'page_id', 'page_restrictions' ), array("page_restrictions!=''", "page_restrictions!='edit=:move='"), __METHOD__ );
1160
1161                 $count = 0;
1162
1163                 while ($row = $wgDatabase->fetchObject($res) ) {
1164                         $count = ($count + 1) % 100;
1165
1166                         if ($count == 0) {
1167                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
1168                                         wfWaitForSlaves( 10 );
1169                                 } else {
1170                                         sleep( 1 );
1171                                 }
1172                         }
1173
1174                         # Figure out what the restrictions are..
1175                         $id = $row->page_id;
1176                         $flatrestrictions = explode( ':', $row->page_restrictions );
1177
1178                         $restrictions = array ();
1179                         foreach( $flatrestrictions as $restriction ) {
1180                                 $thisrestriction = explode( '=', $restriction, 2 );
1181                                 if( count( $thisrestriction ) == 1 ) {
1182                                         // Compatibility with old protections from before
1183                                         // separate move protection was added.
1184                                         list( $level ) = $thisrestriction;
1185                                         if( $level ) {
1186                                                 $restrictions['edit'] = $level;
1187                                                 $restrictions['move'] = $level;
1188                                         }
1189                                 } else {
1190                                         list( $type, $level ) = $thisrestriction;
1191                                         if( $level ) {
1192                                                 $restrictions[$type] = $level;
1193                                         }
1194                                 }
1195
1196                         $wgDatabase->update( 'page', array ( 'page_restrictions' => ''), array( 'page_id' => $id ), __METHOD__ );
1197
1198                         }
1199
1200                         foreach( $restrictions as $type => $level ) {
1201                                 $wgDatabase->insert( 'page_restrictions', array ( 'pr_page' => $id,
1202                                                                                         'pr_type' => $type,
1203                                                                                         'pr_level' => $level,
1204                                                                                         'pr_cascade' => 0,
1205                                                                                         'pr_expiry' => 'infinity' ),
1206                                                                                         __METHOD__ );
1207                         }
1208                 }
1209                 wfOut( "ok\n" );
1210         }
1211 }
1212
1213 function do_category_population() {
1214         if( update_row_exists( 'populate category' ) ) {
1215                 wfOut( "...category table already populated.\n" );
1216                 return;
1217         }
1218         require_once( 'populateCategory.inc' );
1219         wfOut( "Populating category table, printing progress markers.  " ).
1220 "For large databases, you\n".
1221 "may want to hit Ctrl-C and do this manually with maintenance/\n".
1222 "populateCategory.php.\n";
1223         populateCategory( '', 10, 0, true );
1224         wfOut( "Done populating category table.\n" );
1225 }
1226
1227 function do_populate_parent_id() {
1228         if( update_row_exists( 'populate rev_parent_id' ) ) {
1229                 wfOut( "...rev_parent_id column already populated.\n" );
1230                 return;
1231         }
1232         require_once( 'populateParentId.inc' );
1233
1234         global $wgDatabase;
1235         populate_rev_parent_id( $wgDatabase );
1236 }
1237
1238 function sqlite_initial_indexes() {
1239         global $wgDatabase;
1240         if ( update_row_exists( 'initial_indexes' ) ) {
1241                 wfOut( "...have initial indexes\n" );
1242                 return;
1243         }
1244         wfOut( "Adding initial indexes..." );
1245         $wgDatabase->sourceFile( archive( 'initial-indexes.sql' ) );
1246         wfOut( "done\n" );
1247 }
1248
1249 function do_unique_pl_tl_il() {
1250         global $wgDatabase;
1251         $info = $wgDatabase->indexInfo( 'pagelinks', 'pl_namespace' );
1252         if( is_array($info) && !$info[0]->Non_unique ) {
1253                 wfOut( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
1254         } else {
1255                 wfOut( "Making pl_namespace, tl_namespace and il_to indices UNIQUE... " );
1256                 dbsource( archive( 'patch-pl-tl-il-unique.sql' ), $wgDatabase );
1257                 wfOut( "ok\n" );
1258         }
1259 }
1260
1261 function do_log_search_population() {
1262         global $wgDatabase;
1263         if( update_row_exists( 'populate log_search' ) ) {
1264                 wfOut( "...log_search table already populated.\n" );
1265                 return;
1266         }
1267         require_once( 'populateLogSearch.inc' );
1268         wfOut(
1269 "Populating log_search table, printing progress markers. For large\n" .
1270 "databases, you may want to hit Ctrl-C and do this manually with\n" .
1271 "maintenance/populateLogSearch.php.\n" );
1272         migrate_log_params( $wgDatabase );
1273         wfOut( "Done populating log_search table.\n" );
1274 }
1275
1276 /***********************************************************************
1277  * Start PG crap
1278  * TODO: merge with above
1279  ***********************************************************************/
1280
1281 function
1282 pg_describe_table($table)
1283 {
1284 global  $wgDatabase, $wgDBmwschema;
1285         $q = <<<END
1286 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
1287         WHERE pg_class.relnamespace = pg_namespace.oid
1288           AND attrelid=pg_class.oid AND attnum > 0
1289           AND relname=%s AND nspname=%s
1290 END;
1291         $res = $wgDatabase->query(sprintf($q,
1292                         $wgDatabase->addQuotes($table),
1293                         $wgDatabase->addQuotes($wgDBmwschema)));
1294         if (!$res)
1295                 return null;
1296
1297         $cols = array();
1298         while ($r = $wgDatabase->fetchRow($res)) {
1299                 $cols[] = array(
1300                                 "name" => $r[0],
1301                                 "ord" => $r[1],
1302                         );
1303         }
1304         return $cols;
1305 }
1306
1307 function
1308 pg_describe_index($idx)
1309 {
1310 global  $wgDatabase, $wgDBmwschema;
1311
1312         // first fetch the key (which is a list of columns ords) and
1313         // the table the index applies to (an oid)
1314         $q = <<<END
1315 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
1316         WHERE nspname=%s
1317           AND pg_class.relnamespace = pg_namespace.oid
1318           AND relname=%s
1319           AND indexrelid=pg_class.oid
1320 END;
1321         $res = $wgDatabase->query(sprintf($q,
1322                         $wgDatabase->addQuotes($wgDBmwschema),
1323                         $wgDatabase->addQuotes($idx)));
1324         if (!$res)
1325                 return null;
1326         if (!($r = $wgDatabase->fetchRow($res))) {
1327                 $wgDatabase->freeResult($res);
1328                 return null;
1329         }
1330
1331         $indkey = $r[0];
1332         $relid = intval($r[1]);
1333         $indkeys = explode(" ", $indkey);
1334         $wgDatabase->freeResult($res);
1335
1336         $colnames = array();
1337         foreach ($indkeys as $rid) {
1338                 $query = <<<END
1339 SELECT attname FROM pg_class, pg_attribute
1340         WHERE attrelid=$relid
1341           AND attnum=%d
1342           AND attrelid=pg_class.oid
1343 END;
1344                 $r2 = $wgDatabase->query(sprintf($query, $rid));
1345                 if (!$r2)
1346                         return null;
1347                 if (!($row2 = $wgDatabase->fetchRow($r2))) {
1348                         $wgDatabase->freeResult($r2);
1349                         return null;
1350                 }
1351                 $colnames[] = $row2[0];
1352                 $wgDatabase->freeResult($r2);
1353         }
1354
1355         return $colnames;
1356 }
1357
1358 function
1359 pg_index_exists($table, $index)
1360 {
1361 global  $wgDatabase, $wgDBmwschema;
1362         $exists = $wgDatabase->selectField("pg_indexes", "indexname",
1363                         array(  "indexname" => $index,
1364                                 "tablename" => $table,
1365                                 "schemaname" => $wgDBmwschema));
1366         return $exists === $index;
1367 }
1368
1369 function
1370 pg_fkey_deltype($fkey)
1371 {
1372 global  $wgDatabase, $wgDBmwschema;
1373         $q = <<<END
1374 SELECT confdeltype FROM pg_constraint, pg_namespace
1375         WHERE connamespace=pg_namespace.oid
1376           AND nspname=%s
1377           AND conname=%s;
1378 END;
1379         $r = $wgDatabase->query(sprintf($q,
1380                 $wgDatabase->addQuotes($wgDBmwschema),
1381                 $wgDatabase->addQuotes($fkey)));
1382         if (!($row = $wgDatabase->fetchRow($r)))
1383                 return null;
1384         return $row[0];
1385 }
1386
1387 function
1388 pg_rule_def($table, $rule)
1389 {
1390 global  $wgDatabase, $wgDBmwschema;
1391         $q = <<<END
1392 SELECT definition FROM pg_rules
1393         WHERE schemaname = %s
1394           AND tablename = %s
1395           AND rulename = %s
1396 END;
1397         $r = $wgDatabase->query(sprintf($q,
1398                         $wgDatabase->addQuotes($wgDBmwschema),
1399                         $wgDatabase->addQuotes($table),
1400                         $wgDatabase->addQuotes($rule)));
1401         $row = $wgDatabase->fetchRow($r);
1402         if (!$row)
1403                 return null;
1404         $d = $row[0];
1405         $wgDatabase->freeResult($r);
1406         return $d;
1407 }
1408
1409 function do_postgres_updates() {
1410         global $wgDatabase, $wgVersion, $wgDBmwschema, $wgDBts2schema, $wgShowExceptionDetails, $wgDBuser;
1411
1412         ## Gather version numbers in case we need them
1413         $version = $wgDatabase->getServerVersion(); ## long string
1414         $numver = $wgDatabase->numeric_version; ## X.Y e.g. 8.3
1415
1416         $wgShowExceptionDetails = 1;
1417
1418         # Just in case their LocalSettings.php does not have this:
1419         if ( !isset( $wgDBmwschema ))
1420                 $wgDBmwschema = 'mediawiki';
1421
1422         # Verify that this user is configured correctly
1423         $safeuser = $wgDatabase->addQuotes($wgDBuser);
1424         $SQL = "SELECT array_to_string(useconfig,'*') FROM pg_catalog.pg_user WHERE usename = $safeuser";
1425         $config = pg_fetch_result( $wgDatabase->doQuery( $SQL ), 0, 0 );
1426         $conf = array();
1427         foreach( explode( '*', $config ) as $c ) {
1428                 list( $x,$y ) = explode( '=', $c );
1429                 $conf[$x] = $y;
1430         }
1431         if( !array_key_exists( 'search_path', $conf ) ) {
1432                 $search_path = '';
1433         }
1434         else {
1435                 $search_path = $conf['search_path'];
1436         }
1437         if( strpos( $search_path, $wgDBmwschema ) === false ) {
1438                 wfOut( "Adding in schema \"$wgDBmwschema\" to search_path for user \"$wgDBuser\"\n" );
1439                 $search_path = "$wgDBmwschema, $search_path";
1440         }
1441         if( strpos( $search_path, $wgDBts2schema ) === false ) {
1442                 wfOut( "Adding in schema \"$wgDBts2schema\" to search_path for user \"$wgDBuser\"\n" );
1443                 $search_path = "$search_path, $wgDBts2schema";
1444         }
1445         $search_path = str_replace( ', ,', ',', $search_path);
1446         if( array_key_exists( 'search_path', $conf ) === false || $search_path != $conf['search_path'] ) {
1447                 $wgDatabase->doQuery( "ALTER USER $wgDBuser SET search_path = $search_path" );
1448                 $wgDatabase->doQuery( "SET search_path = $search_path" );
1449         }
1450         else {
1451                 $path = $conf['search_path'];
1452                 wfOut( "... search_path for user \"$wgDBuser\" looks correct ($path)\n" );
1453         }
1454         $goodconf = array(
1455                 'client_min_messages' => 'error',
1456                 'DateStyle'           => 'ISO, YMD',
1457                 'TimeZone'            => 'GMT'
1458         );
1459         foreach( array_keys( $goodconf ) AS $key ) {
1460                 $value = $goodconf[$key];
1461                 if( !array_key_exists( $key, $conf ) or $conf[$key] !== $value ) {
1462                         wfOut( "Setting $key to '$value' for user \"$wgDBuser\"\n" );
1463                         $wgDatabase->doQuery( "ALTER USER $wgDBuser SET $key = '$value'" );
1464                         $wgDatabase->doQuery( "SET $key = '$value'" );
1465                 }
1466                 else {
1467                         wfOut( "... default value of \"$key\" is correctly set to \"$value\" for user \"$wgDBuser\"\n" );
1468                 }
1469         }
1470
1471         $newsequences = array(
1472                 "log_log_id_seq",
1473                 "pr_id_val",
1474         );
1475
1476         $newtables = array(
1477                 array("category",          "patch-category.sql"),
1478                 array("mediawiki_version", "patch-mediawiki_version.sql"),
1479                 array("mwuser",            "patch-mwuser.sql"),
1480                 array("pagecontent",       "patch-pagecontent.sql"),
1481                 array("querycachetwo",     "patch-querycachetwo.sql"),
1482                 array("page_props",        "patch-page_props.sql"),
1483                 array("page_restrictions", "patch-page_restrictions.sql"),
1484                 array("profiling",         "patch-profiling.sql"),
1485                 array("protected_titles",  "patch-protected_titles.sql"),
1486                 array("redirect",          "patch-redirect.sql"),
1487                 array("updatelog",         "patch-updatelog.sql"),
1488                 array('change_tag',        'patch-change_tag.sql'),
1489                 array('tag_summary',       'patch-change_tag.sql'),
1490                 array('valid_tag',         'patch-change_tag.sql'),
1491                 array('user_properties',   'patch-user_properties.sql'),
1492                 array('log_search',        'patch-log_search.sql'),
1493                 array('l10n_cache',        'patch-l10n_cache.sql'),
1494         );
1495
1496         $newcols = array(
1497                 array("archive",       "ar_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1498                 array("archive",       "ar_len",               "INTEGER"),
1499                 array("archive",       "ar_page_id",           "INTEGER"),
1500                 array("archive",       "ar_parent_id",         "INTEGER"),
1501                 array("image",         "img_sha1",             "TEXT NOT NULL DEFAULT ''"),
1502                 array("ipblocks",      "ipb_allow_usertalk",   "SMALLINT NOT NULL DEFAULT 0"),
1503                 array("ipblocks",      "ipb_anon_only",        "SMALLINT NOT NULL DEFAULT 0"),
1504                 array("ipblocks",      "ipb_by_text",          "TEXT NOT NULL DEFAULT ''"),
1505                 array("ipblocks",      "ipb_block_email",      "SMALLINT NOT NULL DEFAULT 0"),
1506                 array("ipblocks",      "ipb_create_account",   "SMALLINT NOT NULL DEFAULT 1"),
1507                 array("ipblocks",      "ipb_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1508                 array("ipblocks",      "ipb_enable_autoblock", "SMALLINT NOT NULL DEFAULT 1"),
1509                 array("filearchive",   "fa_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1510                 array("logging",       "log_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1511                 array("logging",       "log_id",               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('log_log_id_seq')"),
1512                 array("logging",       "log_params",           "TEXT"),
1513                 array("mwuser",        "user_editcount",       "INTEGER"),
1514                 array("mwuser",        "user_hidden",          "SMALLINT NOT NULL DEFAULT 0"),
1515                 array("mwuser",        "user_newpass_time",    "TIMESTAMPTZ"),
1516                 array("oldimage",      "oi_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1517                 array("oldimage",      "oi_major_mime",        "TEXT NOT NULL DEFAULT 'unknown'"),
1518                 array("oldimage",      "oi_media_type",        "TEXT"),
1519                 array("oldimage",      "oi_metadata",          "BYTEA NOT NULL DEFAULT ''"),
1520                 array("oldimage",      "oi_minor_mime",        "TEXT NOT NULL DEFAULT 'unknown'"),
1521                 array("oldimage",      "oi_sha1",              "TEXT NOT NULL DEFAULT ''"),
1522                 array("page_restrictions", "pr_id",            "INTEGER NOT NULL UNIQUE DEFAULT nextval('pr_id_val')"),
1523                 array("profiling",     "pf_memory",            "NUMERIC(18,10) NOT NULL DEFAULT 0"),
1524                 array("recentchanges", "rc_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
1525                 array("recentchanges", "rc_log_action",        "TEXT"),
1526         array("recentchanges", "rc_log_type",          "TEXT"),
1527         array("recentchanges", "rc_logid",             "INTEGER NOT NULL DEFAULT 0"),
1528                 array("recentchanges", "rc_new_len",           "INTEGER"),
1529                 array("recentchanges", "rc_old_len",           "INTEGER"),
1530                 array("recentchanges", "rc_params",            "TEXT"),
1531                 array("revision",      "rev_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
1532                 array("revision",      "rev_len",              "INTEGER"),
1533                 array("revision",      "rev_parent_id",        "INTEGER DEFAULT NULL"),
1534                 array("site_stats",    "ss_active_users",      "INTEGER DEFAULT '-1'"),
1535                 array("user_newtalk",  "user_last_timestamp",  "TIMESTAMPTZ"),
1536                 array("logging",       "log_user_text",        "TEXT NOT NULL DEFAULT ''"),
1537                 array("logging",       "log_page",             "INTEGER"),
1538         );
1539
1540
1541         # table, column, desired type, USING clause if needed (with new default if needed)
1542         $typechanges = array(
1543                 array("archive",      "ar_deleted",      "smallint", ""),
1544                 array("archive",      "ar_minor_edit",   "smallint", "ar_minor_edit::smallint DEFAULT 0"),
1545                 array("filearchive",  "fa_deleted",      "smallint", ""),
1546                 array("filearchive",  "fa_height",       "integer",  ""),
1547                 array("filearchive",  "fa_metadata",     "bytea",    "decode(fa_metadata,'escape')"),
1548                 array("filearchive",  "fa_size",         "integer",  ""),
1549                 array("filearchive",  "fa_width",        "integer",  ""),
1550                 array("filearchive",  "fa_storage_group","text",     ""),
1551                 array("filearchive",  "fa_storage_key",  "text",     ""),
1552                 array("image",        "img_metadata",    "bytea",    "decode(img_metadata,'escape')"),
1553                 array("image",        "img_size",        "integer",  ""),
1554                 array("image",        "img_width",       "integer",  ""),
1555                 array("image",        "img_height",      "integer",  ""),
1556                 array("interwiki",    "iw_local",        "smallint", "iw_local::smallint DEFAULT 0"),
1557                 array("interwiki",    "iw_trans",        "smallint", "iw_trans::smallint DEFAULT 0"),
1558                 array("ipblocks",     "ipb_auto",        "smallint", "ipb_auto::smallint DEFAULT 0"),
1559                 array("ipblocks",     "ipb_anon_only",   "smallint", "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0"),
1560                 array("ipblocks",     "ipb_create_account", "smallint", "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1"),
1561                 array("ipblocks",     "ipb_enable_autoblock", "smallint", "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1"),
1562                 array("ipblocks",     "ipb_block_email", "smallint", "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0"),
1563                 array("ipblocks",     "ipb_address",     "text",     "ipb_address::text"),
1564                 array("ipblocks",     "ipb_deleted",     "smallint", "ipb_deleted::smallint DEFAULT 0"),
1565                 array("math",         "math_inputhash",  "bytea",    "decode(math_inputhash,'escape')"),
1566                 array("math",         "math_outputhash", "bytea",    "decode(math_outputhash,'escape')"),
1567                 array("mwuser",       "user_token",      "text",     ""),
1568                 array("mwuser",       "user_email_token","text",     ""),
1569                 array("objectcache",  "keyname",         "text",     ""),
1570                 array("oldimage",     "oi_height",       "integer",  ""),
1571                 array("oldimage",     "oi_metadata",     "bytea",    "decode(img_metadata,'escape')"),
1572                 array("oldimage",     "oi_size",         "integer",  ""),
1573                 array("oldimage",     "oi_width",        "integer",  ""),
1574                 array("page",         "page_is_redirect","smallint", "page_is_redirect::smallint DEFAULT 0"),
1575                 array("page",         "page_is_new",     "smallint", "page_is_new::smallint DEFAULT 0"),
1576                 array("querycache",   "qc_value",        "integer",  ""),
1577                 array("querycachetwo","qcc_value",       "integer",  ""),
1578                 array("recentchanges","rc_bot",          "smallint", "rc_bot::smallint DEFAULT 0"),
1579                 array("recentchanges","rc_deleted",      "smallint", ""),
1580                 array("recentchanges","rc_minor",        "smallint", "rc_minor::smallint DEFAULT 0"),
1581                 array("recentchanges","rc_new",          "smallint", "rc_new::smallint DEFAULT 0"),
1582                 array("recentchanges","rc_type",         "smallint", "rc_type::smallint DEFAULT 0"),
1583                 array("recentchanges","rc_patrolled",    "smallint", "rc_patrolled::smallint DEFAULT 0"),
1584                 array("revision",     "rev_deleted",     "smallint", "rev_deleted::smallint DEFAULT 0"),
1585                 array("revision",     "rev_minor_edit",  "smallint", "rev_minor_edit::smallint DEFAULT 0"),
1586                 array("templatelinks","tl_namespace",    "smallint", "tl_namespace::smallint"),
1587                 array("user_newtalk", "user_ip",         "text",     "host(user_ip)"),
1588         );
1589
1590         # table, column, nullability
1591         $nullchanges = array(
1592                 array("oldimage", "oi_bits",       "NULL"),
1593                 array("oldimage", "oi_timestamp",  "NULL"),
1594                 array("oldimage", "oi_major_mime", "NULL"),
1595                 array("oldimage", "oi_minor_mime", "NULL"),
1596         );
1597
1598         $newindexes = array(
1599                 array("archive",       "archive_user_text",  "(ar_user_text)"),
1600                 array("image",         "img_sha1",           "(img_sha1)"),
1601                 array("oldimage",      "oi_sha1",            "(oi_sha1)"),
1602                 array("revision",      "rev_text_id_idx",    "(rev_text_id)"),
1603                 array("recentchanges", "rc_timestamp_bot",   "(rc_timestamp) WHERE rc_bot = 0"),
1604                 array("templatelinks", "templatelinks_from", "(tl_from)"),
1605                 array("watchlist",     "wl_user",            "(wl_user)"),
1606                 array("logging",       "logging_user_type_time", "(log_user, log_type, log_timestamp)"),
1607                 array("logging",       "logging_page_id_time",   "(log_page,log_timestamp)"),
1608         );
1609
1610         $newrules = array(
1611         );
1612
1613         foreach ($newsequences as $ns) {
1614                 if ($wgDatabase->sequenceExists($ns)) {
1615                         wfOut( "... sequence \"$ns\" already exists\n" );
1616                         continue;
1617                 }
1618
1619                 wfOut( "Creating sequence \"$ns\"\n" );
1620                 $wgDatabase->query("CREATE SEQUENCE $ns");
1621         }
1622
1623         foreach ($newtables as $nt) {
1624                 if ($wgDatabase->tableExists($nt[0])) {
1625                         wfOut( "... table \"$nt[0]\" already exists\n" );
1626                         continue;
1627                 }
1628
1629                 wfOut( "Creating table \"$nt[0]\"\n" );
1630                 dbsource(archive($nt[1]));
1631         }
1632
1633         ## Needed before newcols
1634         if ($wgDatabase->tableExists("archive2")) {
1635                 wfOut( "Converting \"archive2\" back to normal archive table\n" );
1636                 if ($wgDatabase->ruleExists("archive", "archive_insert")) {
1637                         wfOut( "Dropping rule \"archive_insert\"\n" );
1638                         $wgDatabase->query("DROP RULE archive_insert ON archive");
1639                 }
1640                 if ($wgDatabase->ruleExists("archive", "archive_delete")) {
1641                         wfOut( "Dropping rule \"archive_delete\"\n" );
1642                         $wgDatabase->query("DROP RULE archive_delete ON archive");
1643                 }
1644                 dbsource(archive("patch-remove-archive2.sql"));
1645         }
1646         else
1647                 wfOut( "... obsolete table \"archive2\" does not exist\n" );
1648
1649         foreach ($newcols as $nc) {
1650                 $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
1651                 if (!is_null($fi)) {
1652                         wfOut( "... column \"$nc[0].$nc[1]\" already exists\n" );
1653                         continue;
1654                 }
1655
1656                 wfOut( "Adding column \"$nc[0].$nc[1]\"\n" );
1657                 $wgDatabase->query("ALTER TABLE $nc[0] ADD $nc[1] $nc[2]");
1658         }
1659
1660         foreach ($typechanges as $tc) {
1661                 $fi = $wgDatabase->fieldInfo($tc[0], $tc[1]);
1662                 if (is_null($fi)) {
1663                         wfOut( "... error: expected column $tc[0].$tc[1] to exist\n" );
1664                         exit(1);
1665                 }
1666
1667                 if ($fi->type() === $tc[2])
1668                         wfOut( "... column \"$tc[0].$tc[1]\" is already of type \"$tc[2]\"\n" );
1669                 else {
1670                         wfOut( "Changing column type of \"$tc[0].$tc[1]\" from \"{$fi->type()}\" to \"$tc[2]\"\n" );
1671                         $sql = "ALTER TABLE $tc[0] ALTER $tc[1] TYPE $tc[2]";
1672                         if (strlen($tc[3])) {
1673                                 $default = array();
1674                                 if (preg_match( '/DEFAULT (.+)/', $tc[3], $default)) {
1675                                         $sqldef = "ALTER TABLE $tc[0] ALTER $tc[1] SET DEFAULT $default[1]";
1676                                         $wgDatabase->query($sqldef);
1677                                         $tc[3] = preg_replace( '/\s*DEFAULT .+/', '', $tc[3]);
1678                                 }
1679                                 $sql .= " USING $tc[3]";
1680                         }
1681                         $sql .= ";\nCOMMIT;\n";
1682                         $wgDatabase->query($sql);
1683                 }
1684         }
1685
1686         foreach ($nullchanges as $nc) {
1687                 $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
1688                 if (is_null($fi)) {
1689                         wfOut( "... error: expected column $nc[0].$nc[1] to exist\n" );
1690                         exit(1);
1691                 }
1692                 if ($fi->nullable()) {
1693                         ## It's NULL - does it need to be NOT NULL?
1694                         if ('NOT NULL' === $nc[2]) {
1695                                 wfOut( "Changing \"$nc[0].$nc[1]\" to not allow NULLs\n" );
1696                                 $wgDatabase->query( "ALTER TABLE $nc[0] ALTER $nc[1] SET NOT NULL" );
1697                         }
1698                         else {
1699                                 wfOut( "... column \"$nc[0].$nc[1]\" is already set as NULL\n" );
1700                         }
1701                 }
1702                 else {
1703                         ## It's NOT NULL - does it need to be NULL?
1704                         if ('NULL' === $nc[2]) {
1705                                 wfOut( "Changing \"$nc[0].$nc[1]\" to allow NULLs\n" );
1706                                 $wgDatabase->query( "ALTER TABLE $nc[0] ALTER $nc[1] DROP NOT NULL" );
1707                         }
1708                         else {
1709                                 wfOut( "... column \"$nc[0].$nc[1]\" is already set as NOT NULL\n" );
1710                         }
1711                 }
1712         }
1713
1714         if ($wgDatabase->fieldInfo('oldimage','oi_deleted')->type() !== 'smallint') {
1715                 wfOut( "Changing \"oldimage.oi_deleted\" to type \"smallint\"\n" );
1716                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
1717                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
1718                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
1719         }
1720         else
1721                 wfOut( "... column \"oldimage.oi_deleted\" is already of type \"smallint\"\n" );
1722
1723
1724         foreach ($newindexes as $ni) {
1725                 if (pg_index_exists($ni[0], $ni[1])) {
1726                         wfOut( "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n" );
1727                         continue;
1728                 }
1729                 wfOut( "Creating index \"$ni[1]\" on table \"$ni[0]\" $ni[2]\n" );
1730                 $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
1731         }
1732
1733         foreach ($newrules as $nr) {
1734                 if ($wgDatabase->ruleExists($nr[0], $nr[1])) {
1735                         wfOut( "... rule \"$nr[1]\" on table \"$nr[0]\" already exists\n" );
1736                         continue;
1737                 }
1738                 wfOut( "Adding rule \"$nr[1]\" to table \"$nr[0]\"\n" );
1739                 dbsource(archive($nr[2]));
1740         }
1741
1742         if ($wgDatabase->hasConstraint("oldimage_oi_name_fkey")) {
1743                 wfOut( "Making foreign key on table \"oldimage\" (to image) a cascade delete\n" );
1744                 $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
1745                 $wgDatabase->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascade ".
1746                         "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE" );
1747         }
1748         else
1749                 wfOut( "... table \"oldimage\" has correct cascade delete foreign key to image\n" );
1750
1751         if (!$wgDatabase->triggerExists("page", "page_deleted")) {
1752                 wfOut( "Adding function and trigger \"page_deleted\" to table \"page\"\n" );
1753                 dbsource(archive('patch-page_deleted.sql'));
1754         }
1755         else
1756                 wfOut( "... table \"page\" has \"page_deleted\" trigger\n" );
1757
1758         $fi = $wgDatabase->fieldInfo("recentchanges", "rc_cur_id");
1759         if (!$fi->nullable()) {
1760                 wfOut( "Removing NOT NULL constraint from \"recentchanges.rc_cur_id\"\n" );
1761                 dbsource(archive('patch-rc_cur_id-not-null.sql'));
1762         }
1763         else
1764                 wfOut( "... column \"recentchanges.rc_cur_id\" has a NOT NULL constraint\n" );
1765
1766         $pu = pg_describe_index("pagelink_unique");
1767         if (!is_null($pu) && ($pu[0] != "pl_from" || $pu[1] != "pl_namespace" || $pu[2] != "pl_title")) {
1768                 wfOut( "Dropping obsolete version of index \"pagelink_unique index\"\n" );
1769                 $wgDatabase->query("DROP INDEX pagelink_unique");
1770                 $pu = null;
1771         }
1772         else
1773                 wfOut( "... obsolete version of index \"pagelink_unique index\" does not exist\n" );
1774
1775         if (is_null($pu)) {
1776                 wfOut( "Creating index \"pagelink_unique index\"\n" );
1777                 $wgDatabase->query("CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)");
1778         }
1779         else
1780                 wfOut( "... index \"pagelink_unique_index\" already exists\n" );
1781
1782         if (pg_fkey_deltype("revision_rev_user_fkey") == 'r') {
1783                 wfOut( "... constraint \"revision_rev_user_fkey\" is ON DELETE RESTRICT\n" );
1784         }
1785         else {
1786                 wfOut( "Changing constraint \"revision_rev_user_fkey\" to ON DELETE RESTRICT\n" );
1787                 dbsource(archive('patch-revision_rev_user_fkey.sql'));
1788         }
1789
1790         # Fix ipb_address index
1791         if (pg_index_exists('ipblocks', 'ipb_address' )) {
1792                 wfOut( "Removing deprecated index 'ipb_address'...\n" );
1793                 $wgDatabase->query('DROP INDEX ipb_address');
1794         }
1795         if (pg_index_exists('ipblocks', 'ipb_address_unique' )) {
1796                 wfOut( "... have ipb_address_unique\n" );
1797         }
1798         else {
1799                 wfOut( "Adding ipb_address_unique index\n" );
1800                 dbsource(archive('patch-ipb_address_unique.sql'));
1801         }
1802
1803         global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
1804         # Add missing extension tables
1805         foreach ( $wgExtNewTables as $nt ) {
1806                 if ($wgDatabase->tableExists($nt[0])) {
1807                         wfOut( "... table \"$nt[0]\" already exists\n" );
1808                         continue;
1809                 }
1810                 wfOut( "Creating table \"$nt[0]\"\n" );
1811                 dbsource($nt[1]);
1812         }
1813         # Add missing extension fields
1814         foreach ( $wgExtPGNewFields as $nc ) {
1815                 $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
1816                 if (!is_null($fi)) {
1817                         wfOut( "... column \"$nc[0].$nc[1]\" already exists\n" );
1818                         continue;
1819                 }
1820                 wfOut( "Adding column \"$nc[0].$nc[1]\"\n" );
1821                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1822         }
1823         # Change altered columns
1824         foreach ( $wgExtPGAlteredFields as $nc ) {
1825                 $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
1826                 if (is_null($fi)) {
1827                         wfOut( "WARNING! Column \"$nc[0].$nc[1]\" does not exist but had an alter request! Please report this.\n" );
1828                         continue;
1829                 }
1830                 $oldtype = $fi->type();
1831                 $newtype = strtolower( $nc[2] );
1832                 if ($oldtype === $newtype) {
1833                         wfOut( "... column \"$nc[0].$nc[1]\" has correct type of \"$newtype\"\n" );
1834                         continue;
1835                 }
1836                 $command = "ALTER TABLE $nc[0] ALTER $nc[1] TYPE $nc[2]";
1837                 if ( isset( $nc[3] ) ) {
1838                         $command .= " USING $nc[3]";
1839                 }
1840                 wfOut( "Altering column \"$nc[0].$nc[1]\" from type \"$oldtype\" to \"$newtype\"\n" );
1841                 $wgDatabase->query( $command );
1842         }
1843         # Add missing extension indexes
1844         foreach ( $wgExtNewIndexes as $ni ) {
1845                 if (pg_index_exists($ni[0], $ni[1])) {
1846                         wfOut( "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n" );
1847                         continue;
1848                 }
1849                 wfOut( "Creating index \"$ni[1]\" on table \"$ni[0]\"\n" );
1850                 if ( preg_match( '/^\(/', $ni[2] ) ) {
1851                         $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
1852                 }
1853                 else {
1854                         dbsource($ni[2]);
1855                 }
1856         }
1857
1858         # Tweak the page_title tsearch2 trigger to filter out slashes
1859         # This is create or replace, so harmless to call if not needed
1860         dbsource(archive('patch-ts2pagetitle.sql'));
1861
1862         ## If the server is 8.3 or higher, rewrite the tsearch2 triggers
1863         ## in case they have the old 'default' versions
1864         if ( $numver >= 8.3 )
1865                 dbsource(archive('patch-tsearch2funcs.sql'));
1866
1867         ## Put a new row in the mediawiki_version table
1868         $wgDatabase->insert( 'mediawiki_version',
1869                 array(
1870                         'type' => 'Update',
1871                         'ctype' => 'U',
1872                         'mw_version' => $wgVersion,
1873                         'pg_version' => $version,
1874                         'sql_version' => '$LastChangedRevision$',
1875                         'sql_date' => '$LastChangedDate$',
1876                 ) );
1877         return;
1878 }