maintenance/updaters.inc

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup Maintenance
   5  */
   6
   7 if ( !defined( 'MEDIAWIKI' ) ) {
   8         echo "This file is not a valid entry point\n";
   9         exit( 1 );
  10 }
  11
  12 require_once 'convertLinks.inc';
  13 require_once 'userDupes.inc';
  14 # Extension updates
  15 require_once( "$IP/includes/Hooks.php" );
  16
  17 /**
  18  * List of update functions to call for each DB type, in sequence. First item
  19  * is function name, rest are parameters to pass.
  20  */
  21 $wgUpdates = array(
  22         'mysql' => array(
  23                 // 1.2
  24                 // update_passwords obsolete
  25                 array( 'add_field', 'ipblocks',      'ipb_id',           'patch-ipblocks.sql' ),
  26                 array( 'add_field', 'ipblocks',      'ipb_expiry',       'patch-ipb_expiry.sql' ),
  27                 array( 'do_interwiki_update' ),
  28                 array( 'do_index_update' ),
  29                 // do_linkscc_update obsolete
  30                 array( 'add_table', 'hitcounter',                        'patch-hitcounter.sql' ),
  31                 array( 'add_field', 'recentchanges', 'rc_type',          'patch-rc_type.sql' ),
  32
  33                 // 1.3
  34                 array( 'add_field', 'user',          'user_real_name',   'patch-user-realname.sql' ),
  35                 array( 'add_table', 'querycache',                        'patch-querycache.sql' ),
  36                 array( 'add_table', 'objectcache',                       'patch-objectcache.sql' ),
  37                 array( 'add_table', 'categorylinks',                     'patch-categorylinks.sql' ),
  38                 // do_linkscc_1_3_update obsolete
  39                 array( 'do_old_links_update' ),
  40                 array( 'fix_ancient_imagelinks' ),
  41                 array( 'add_field', 'recentchanges', 'rc_ip',            'patch-rc_ip.sql' ),
  42
  43                 // 1.4
  44                 array( 'do_image_name_unique_update' ),
  45                 array( 'add_field', 'recentchanges', 'rc_id',            'patch-rc_id.sql' ),
  46                 array( 'add_field', 'recentchanges', 'rc_patrolled',     'patch-rc-patrol.sql' ),
  47                 array( 'add_table', 'logging',                           'patch-logging.sql' ),
  48                 // do_user_rights_update obsolete
  49                 array( 'add_field', 'user',          'user_token',       'patch-user_token.sql' ),
  50                 // old, old_articleid, patch-remove-old-title-namespace.sql obsolete
  51                 // user_groups, patch-userlevels.sql obsolete
  52                 // do_group_update() obsolete
  53                 array( 'do_watchlist_update' ),
  54                 array( 'do_user_update' ),
  55                 // do_copy_newtalk_to_watchlist obsolete
  56
  57                 // 1.5
  58                 array( 'do_schema_restructuring' ),
  59                 array( 'add_field', 'logging',       'log_params',       'patch-log_params.sql' ),
  60                 array( 'check_bin', 'logging',       'log_title',        'patch-logging-title.sql', ),
  61                 array( 'add_field', 'archive',       'ar_rev_id',        'patch-archive-rev_id.sql' ),
  62                 array( 'add_field', 'page',          'page_len',         'patch-page_len.sql' ),
  63                 array( 'do_inverse_timestamp' ),
  64                 array( 'do_text_id' ),
  65                 array( 'add_field', 'revision',      'rev_deleted',      'patch-rev_deleted.sql' ),
  66                 array( 'add_field', 'image',         'img_width',        'patch-img_width.sql' ),
  67                 array( 'add_field', 'image',         'img_metadata',     'patch-img_metadata.sql' ),
  68                 array( 'add_field', 'user',          'user_email_token', 'patch-user_email_token.sql' ),
  69                 array( 'add_field', 'archive',       'ar_text_id',       'patch-archive-text_id.sql' ),
  70                 array( 'do_namespace_size' ),
  71                 array( 'add_field', 'image',         'img_media_type',   'patch-img_media_type.sql' ),
  72                 array( 'do_pagelinks_update' ),
  73                 array( 'do_drop_img_type' ),
  74                 array( 'do_user_unique_update' ),
  75                 array( 'do_user_groups_update' ),
  76                 array( 'add_field', 'site_stats',    'ss_total_pages',   'patch-ss_total_articles.sql' ),
  77                 array( 'add_table', 'user_newtalk',                      'patch-usernewtalk2.sql' ),
  78                 array( 'add_table', 'transcache',                        'patch-transcache.sql' ),
  79                 array( 'add_field', 'interwiki',     'iw_trans',         'patch-interwiki-trans.sql' ),
  80                 array( 'add_table', 'trackbacks',                        'patch-trackbacks.sql' ),
  81
  82                 // 1.6
  83                 array( 'do_watchlist_null' ),
  84                 // do_image_index_update obsolete
  85                 array( 'do_logging_timestamp_index' ),
  86                 array( 'add_field', 'ipblocks',        'ipb_range_start',  'patch-ipb_range_start.sql' ),
  87                 array( 'do_page_random_update' ),
  88                 array( 'add_field', 'user',            'user_registration', 'patch-user_registration.sql' ),
  89                 array( 'do_templatelinks_update' ),
  90                 array( 'add_table', 'externallinks',                       'patch-externallinks.sql' ),
  91                 array( 'add_table', 'job',                                 'patch-job.sql' ),
  92                 array( 'add_field', 'site_stats',      'ss_images',        'patch-ss_images.sql' ),
  93                 array( 'add_table', 'langlinks',                           'patch-langlinks.sql' ),
  94                 array( 'add_table', 'querycache_info',                     'patch-querycacheinfo.sql' ),
  95                 array( 'add_table', 'filearchive',                         'patch-filearchive.sql' ),
  96                 array( 'add_field', 'ipblocks',        'ipb_anon_only',    'patch-ipb_anon_only.sql' ),
  97                 array( 'do_rc_indices_update' ),
  98
  99                 // 1.9
 100                 array( 'add_field', 'user',          'user_newpass_time', 'patch-user_newpass_time.sql' ),
 101                 array( 'add_table', 'redirect',                           'patch-redirect.sql' ),
 102                 array( 'add_table', 'querycachetwo',                      'patch-querycachetwo.sql' ),
 103                 array( 'add_field', 'ipblocks',      'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ),
 104                 array( 'do_backlinking_indices_update' ),
 105                 array( 'add_field', 'recentchanges', 'rc_old_len',        'patch-rc_len.sql' ),
 106                 array( 'add_field', 'user',          'user_editcount',    'patch-user_editcount.sql' ),
 107
 108                 // 1.10
 109                 array( 'do_restrictions_update' ),
 110                 array( 'add_field', 'logging',       'log_id',           'patch-log_id.sql' ),
 111                 array( 'add_field', 'revision',      'rev_parent_id',    'patch-rev_parent_id.sql' ),
 112                 array( 'add_field', 'page_restrictions', 'pr_id',        'patch-page_restrictions_sortkey.sql' ),
 113                 array( 'add_field', 'revision',      'rev_len',          'patch-rev_len.sql' ),
 114                 array( 'add_field', 'recentchanges', 'rc_deleted',       'patch-rc_deleted.sql' ),
 115                 array( 'add_field', 'logging',       'log_deleted',      'patch-log_deleted.sql' ),
 116                 array( 'add_field', 'archive',       'ar_deleted',       'patch-ar_deleted.sql' ),
 117                 array( 'add_field', 'ipblocks',      'ipb_deleted',      'patch-ipb_deleted.sql' ),
 118                 array( 'add_field', 'filearchive',   'fa_deleted',       'patch-fa_deleted.sql' ),
 119                 array( 'add_field', 'archive',       'ar_len',           'patch-ar_len.sql' ),
 120
 121                 // 1.11
 122                 array( 'add_field', 'ipblocks',      'ipb_block_email',  'patch-ipb_emailban.sql' ),
 123                 array( 'do_categorylinks_indices_update' ),
 124                 array( 'add_field', 'oldimage',      'oi_metadata',      'patch-oi_metadata.sql' ),
 125                 array( 'do_archive_user_index' ),
 126                 array( 'do_image_user_index' ),
 127                 array( 'do_oldimage_user_index' ),
 128                 array( 'add_field', 'archive',       'ar_page_id',       'patch-archive-page_id.sql' ),
 129                 array( 'add_field', 'image',         'img_sha1',         'patch-img_sha1.sql' ),
 130
 131                 // 1.12
 132                 array( 'add_table', 'protected_titles',                  'patch-protected_titles.sql' ),
 133
 134                 // 1.13
 135                 array( 'add_field', 'ipblocks',      'ipb_by_text',      'patch-ipb_by_text.sql' ),
 136                 array( 'add_table', 'page_props',                        'patch-page_props.sql' ),
 137                 array( 'add_table', 'updatelog',                         'patch-updatelog.sql' ),
 138                 array( 'add_table', 'category',                          'patch-category.sql' ),
 139                 array( 'do_category_population' ),
 140                 array( 'add_field', 'archive',       'ar_parent_id',     'patch-ar_parent_id.sql' ),
 141                 array( 'add_field', 'user_newtalk',  'user_last_timestamp', 'patch-user_last_timestamp.sql' ),
 142                 array( 'do_populate_parent_id' ),
 143                 array( 'check_bin', 'protected_titles', 'pt_title',      'patch-pt_title-encoding.sql', ),
 144                 array( 'maybe_do_profiling_memory_update' ),
 145                 array( 'do_filearchive_indices_update' ),
 146
 147                 // 1.14
 148                 array( 'add_field', 'site_stats',    'ss_active_users',  'patch-ss_active_users.sql' ),
 149                 array( 'do_active_users_init' ),
 150                 array( 'add_field', 'ipblocks',      'ipb_allow_usertalk', 'patch-ipb_allow_usertalk.sql' ),
 151
 152                 // 1.15
 153                 array( 'do_unique_pl_tl_il' ),
 154                 array( 'add_table', 'change_tag',                        'patch-change_tag.sql' ),
 155                 array( 'add_table', 'tag_summary',                       'patch-change_tag.sql' ),
 156                 array( 'add_table', 'valid_tag',                         'patch-change_tag.sql' ),
 157
 158                 // 1.16
 159                 array( 'add_table', 'user_properties',                   'patch-user_properties.sql' ),
 160                 array( 'add_table', 'log_search',                        'patch-log_search.sql' ),
 161                 array( 'do_log_search_population' ),
 162                 array( 'add_field', 'logging',       'log_user_text',    'patch-log_user_text.sql' ),
 163                 array( 'add_table', 'l10n_cache',                        'patch-l10n_cache.sql' ),
 164                 array( 'add_table', 'external_user',                     'patch-external_user.sql' ),
 165                 array( 'add_index', 'log_search',    'ls_field_val',     'patch-log_search-rename-index.sql' ),
 166                 array( 'add_index', 'change_tag',    'change_tag_rc_tag', 'patch-change_tag-indexes.sql' ),
 167                 array( 'add_field', 'redirect',      'rd_interwiki',     'patch-rd_interwiki.sql' ),
 168                 array( 'do_update_transcache_field' ),
 169                 // A field changed name mid-release cycle, so fix it for anyone using
 170                 // trunk
 171                 array( 'rename_eu_wiki_id' ),
 172                 array( 'do_update_mime_minor_field' ),
 173                 // Should've done this back in 1.10, but better late than never:
 174                 array( 'do_populate_rev_len' ),
 175
 176                 // 1.17
 177                 array( 'add_table', 'iwlinks',                           'patch-iwlinks.sql' ),
 178                 array( 'add_index', 'iwlinks', 'iwl_prefix_from_title',  'patch-rename-iwl_prefix.sql' ),
 179         ),
 180
 181         'sqlite' => array(
 182                 // 1.14
 183                 array( 'add_field', 'site_stats',    'ss_active_users',  'patch-ss_active_users.sql' ),
 184                 array( 'do_active_users_init' ),
 185                 array( 'add_field', 'ipblocks',      'ipb_allow_usertalk', 'patch-ipb_allow_usertalk.sql' ),
 186                 array( 'sqlite_initial_indexes' ),
 187
 188                 // 1.15
 189                 array( 'add_table', 'change_tag',                        'patch-change_tag.sql' ),
 190                 array( 'add_table', 'tag_summary',                       'patch-change_tag.sql' ),
 191                 array( 'add_table', 'valid_tag',                         'patch-change_tag.sql' ),
 192
 193                 // 1.16
 194                 array( 'add_table', 'user_properties',                   'patch-user_properties.sql' ),
 195                 array( 'add_table', 'log_search',                        'patch-log_search.sql' ),
 196                 array( 'do_log_search_population' ),
 197                 array( 'add_field', 'logging',       'log_user_text',    'patch-log_user_text.sql' ),
 198                 array( 'add_table', 'l10n_cache',                        'patch-l10n_cache.sql' ),
 199                 array( 'add_table', 'external_user',                     'patch-external_user.sql' ),
 200                 array( 'add_index', 'log_search',    'ls_field_val',     'patch-log_search-rename-index.sql' ),
 201                 array( 'add_index', 'change_tag',    'change_tag_rc_tag', 'patch-change_tag-indexes.sql' ),
 202                 array( 'add_field', 'redirect',      'rd_interwiki',     'patch-rd_interwiki.sql' ),
 203                 array( 'do_update_transcache_field' ),
 204                 // version-independent searchindex setup, added in 1.16
 205                 array( 'sqlite_setup_searchindex' ),
 206
 207                 // 1.17
 208                 array( 'add_table', 'iwlinks',                           'patch-iwlinks.sql' ),
 209                 array( 'add_index', 'iwlinks', 'iwl_prefix_from_title',  'patch-rename-iwl_prefix.sql' ),
 210         ),
 211 );
 212
 213
 214 # For extensions only, should be populated via hooks
 215 # $wgDBtype should be checked to specifiy the proper file
 216 $wgExtNewTables = array(); // table, dir
 217 $wgExtNewFields = array(); // table, column, dir
 218 $wgExtPGNewFields = array(); // table, column, column attributes; for PostgreSQL
 219 $wgExtPGAlteredFields = array(); // table, column, new type, conversion method; for PostgreSQL
 220 $wgExtNewIndexes = array(); // table, index, dir
 221 $wgExtModifiedFields = array(); // table, index, dir
 222
 223 # Helper function: check if the given key is present in the updatelog table.
 224 # Obviously, only use this for updates that occur after the updatelog table was
 225 # created!
 226 function update_row_exists( $key ) {
 227         $dbr = wfGetDB( DB_SLAVE );
 228         $row = $dbr->selectRow(
 229                 'updatelog',
 230                 '1',
 231                 array( 'ul_key' => $key ),
 232                 __FUNCTION__
 233         );
 234         return (bool)$row;
 235 }
 236
 237 function rename_table( $from, $to, $patch ) {
 238         global $wgDatabase;
 239         if ( $wgDatabase->tableExists( $from ) ) {
 240                 if ( $wgDatabase->tableExists( $to ) ) {
 241                         wfOut( "...can't move table $from to $to, $to already exists.\n" );
 242                 } else {
 243                         wfOut( "Moving table $from to $to..." );
 244                         $wgDatabase->sourceFile( archive( $patch ) );
 245                         wfOut( "ok\n" );
 246                 }
 247         } else {
 248                 // Source table does not exist
 249                 // Renames are done before creations, so this is typical for a new installation
 250                 // Ignore silently
 251         }
 252 }
 253
 254 function add_table( $name, $patch, $fullpath = false ) {
 255         global $wgDatabase;
 256         if ( $wgDatabase->tableExists( $name ) ) {
 257                 wfOut( "...$name table already exists.\n" );
 258         } else {
 259                 wfOut( "Creating $name table..." );
 260                 if ( $fullpath ) {
 261                         $wgDatabase->sourceFile( $patch );
 262                 } else {
 263                         $wgDatabase->sourceFile( archive( $patch ) );
 264                 }
 265                 wfOut( "ok\n" );
 266         }
 267 }
 268
 269 function modify_field( $table, $field, $patch, $fullpath = false ) {
 270         global $wgDatabase;
 271         if ( !$wgDatabase->tableExists( $table ) ) {
 272                 wfOut( "...$table table does not exist, skipping modify field patch\n" );
 273         } elseif ( ! $wgDatabase->fieldExists( $table, $field ) ) {
 274                 wfOut( "...$field field does not exist in $table table, skipping modify field patch\n" );
 275         } else {
 276                 wfOut( "Modifying $field field of table $table..." );
 277                 if ( $fullpath ) {
 278                         $wgDatabase->sourceFile( $patch );
 279                 } else {
 280                         $wgDatabase->sourceFile( archive( $patch ) );
 281                 }
 282                 wfOut( "ok\n" );
 283         }
 284 }
 285
 286
 287
 288 function add_field( $table, $field, $patch, $fullpath = false ) {
 289         global $wgDatabase;
 290         if ( !$wgDatabase->tableExists( $table ) ) {
 291                 wfOut( "...$table table does not exist, skipping new field patch\n" );
 292         } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
 293                 wfOut( "...have $field field in $table table.\n" );
 294         } else {
 295                 wfOut( "Adding $field field to table $table..." );
 296                 if ( $fullpath ) {
 297                         $wgDatabase->sourceFile( $patch );
 298                 } else {
 299                         $wgDatabase->sourceFile( archive( $patch ) );
 300                 }
 301                 wfOut( "ok\n" );
 302         }
 303 }
 304
 305 function add_index( $table, $index, $patch, $fullpath = false ) {
 306         global $wgDatabase;
 307         if ( $wgDatabase->indexExists( $table, $index ) ) {
 308                 wfOut( "...$index key already set on $table table.\n" );
 309         } else {
 310                 wfOut( "Adding $index key to table $table... " );
 311                 if ( $fullpath ) {
 312                         $wgDatabase->sourceFile( $patch );
 313                 } else {
 314                         $wgDatabase->sourceFile( archive( $patch ) );
 315                 }
 316                 wfOut( "ok\n" );
 317         }
 318 }
 319
 320 function drop_index_if_exists( $table, $index, $patch, $fullpath = false ) {
 321         global $wgDatabase;
 322         if ( $wgDatabase->indexExists( $table, $index ) ) {
 323                 wfOut( "Dropping $index from table $table... " );
 324                 if ( $fullpath ) {
 325                         $wgDatabase->sourceFile( $patch );
 326                 } else {
 327                         $wgDatabase->sourceFile( archive( $patch ) );
 328                 }
 329                 wfOut( "ok\n" );
 330         } else {
 331                 wfOut( "...$index doesn't exist.\n" );
 332         }
 333 }
 334
 335 function do_interwiki_update() {
 336         # Check that interwiki table exists; if it doesn't source it
 337         global $wgDatabase, $IP;
 338         if ( $wgDatabase->tableExists( "interwiki" ) ) {
 339                 wfOut( "...already have interwiki table\n" );
 340                 return true;
 341         }
 342         wfOut( "Creating interwiki table: " );
 343         $wgDatabase->sourceFile( archive( "patch-interwiki.sql" ) );
 344         wfOut( "ok\n" );
 345         wfOut( "Adding default interwiki definitions: " );
 346         $wgDatabase->sourceFile( "$IP/maintenance/interwiki.sql" );
 347         wfOut( "ok\n" );
 348 }
 349
 350 function do_index_update() {
 351         # Check that proper indexes are in place
 352         global $wgDatabase;
 353         $meta = $wgDatabase->fieldInfo( "recentchanges", "rc_timestamp" );
 354         if ( !$meta->isMultipleKey() ) {
 355                 wfOut( "Updating indexes to 20031107: " );
 356                 $wgDatabase->sourceFile( archive( "patch-indexes.sql" ) );
 357                 wfOut( "ok\n" );
 358                 return true;
 359         }
 360         wfOut( "...indexes seem up to 20031107 standards\n" );
 361         return false;
 362 }
 363
 364 function do_image_index_update() {
 365         global $wgDatabase;
 366
 367         $meta = $wgDatabase->fieldInfo( "image", "img_major_mime" );
 368         if ( !$meta->isMultipleKey() ) {
 369                 wfOut( "Updating indexes to 20050912: " );
 370                 $wgDatabase->sourceFile( archive( "patch-mimesearch-indexes.sql" ) );
 371                 wfOut( "ok\n" );
 372                 return true;
 373         }
 374         wfOut( "...indexes seem up to 20050912 standards\n" );
 375         return false;
 376 }
 377
 378 function do_image_name_unique_update() {
 379         global $wgDatabase;
 380         if ( $wgDatabase->indexExists( 'image', 'PRIMARY' ) ) {
 381                 wfOut( "...image primary key already set.\n" );
 382         } else {
 383                 wfOut( "Making img_name the primary key... " );
 384                 $wgDatabase->sourceFile( archive( "patch-image_name_primary.sql" ) );
 385                 wfOut( "ok\n" );
 386         }
 387 }
 388
 389 function do_logging_timestamp_index() {
 390         global $wgDatabase;
 391         if ( $wgDatabase->indexExists( 'logging', 'times' ) ) {
 392                 wfOut( "...timestamp key on logging already exists.\n" );
 393         } else {
 394                 wfOut( "Adding timestamp key on logging table... " );
 395                 $wgDatabase->sourceFile( archive( "patch-logging-times-index.sql" ) );
 396                 wfOut( "ok\n" );
 397         }
 398 }
 399
 400 function do_archive_user_index() {
 401         global $wgDatabase;
 402         if ( $wgDatabase->indexExists( 'archive', 'usertext_timestamp' ) ) {
 403                 wfOut( "...usertext,timestamp key on archive already exists.\n" );
 404         } else {
 405                 wfOut( "Adding usertext,timestamp key on archive table... " );
 406                 $wgDatabase->sourceFile( archive( "patch-archive-user-index.sql" ) );
 407                 wfOut( "ok\n" );
 408         }
 409 }
 410
 411 function do_image_user_index() {
 412         global $wgDatabase;
 413         if ( $wgDatabase->indexExists( 'image', 'img_usertext_timestamp' ) ) {
 414                 wfOut( "...usertext,timestamp key on image already exists.\n" );
 415         } else {
 416                 wfOut( "Adding usertext,timestamp key on image table... " );
 417                 $wgDatabase->sourceFile( archive( "patch-image-user-index.sql" ) );
 418                 wfOut( "ok\n" );
 419         }
 420 }
 421
 422 function do_oldimage_user_index() {
 423         global $wgDatabase;
 424         if ( $wgDatabase->indexExists( 'oldimage', 'oi_usertext_timestamp' ) ) {
 425                 wfOut( "...usertext,timestamp key on oldimage already exists.\n" );
 426         } else {
 427                 wfOut( "Adding usertext,timestamp key on oldimage table... " );
 428                 $wgDatabase->sourceFile( archive( "patch-oldimage-user-index.sql" ) );
 429                 wfOut( "ok\n" );
 430         }
 431 }
 432
 433 function do_watchlist_update() {
 434         global $wgDatabase;
 435         $fname = 'do_watchlist_update';
 436         if ( $wgDatabase->fieldExists( 'watchlist', 'wl_notificationtimestamp' ) ) {
 437                 wfOut( "The watchlist table is already set up for email notification.\n" );
 438         } else {
 439                 wfOut( "Adding wl_notificationtimestamp field for email notification management." );
 440                 /* ALTER TABLE watchlist ADD (wl_notificationtimestamp varchar(14) binary NOT NULL default '0'); */
 441                 $wgDatabase->sourceFile( archive( 'patch-email-notification.sql' ) );
 442                 wfOut( "ok\n" );
 443         }
 444         # Check if we need to add talk page rows to the watchlist
 445         $talk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', $fname );
 446         $nontalk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', $fname );
 447         if ( $talk != $nontalk ) {
 448                 wfOut( "Adding missing watchlist talk page rows... " );
 449                 flush();
 450
 451                 $wgDatabase->insertSelect( 'watchlist', 'watchlist',
 452                         array(
 453                                 'wl_user' => 'wl_user',
 454                                 'wl_namespace' => 'wl_namespace | 1',
 455                                 'wl_title' => 'wl_title',
 456                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 457                         ), array( 'NOT (wl_namespace & 1)' ), $fname, 'IGNORE' );
 458                 wfOut( "ok\n" );
 459         } else {
 460                 wfOut( "...watchlist talk page rows already present\n" );
 461         }
 462 }
 463
 464 function do_copy_newtalk_to_watchlist() {
 465         global $wgDatabase;
 466         global $wgCommandLineMode; # this needs to be saved while getID() and getName() are called
 467
 468         $res = $wgDatabase->safeQuery( 'SELECT user_id, user_ip FROM !',
 469                 $wgDatabase->tableName( 'user_newtalk' ) );
 470         $num_newtalks = $wgDatabase->numRows( $res );
 471         wfOut( "Now converting $num_newtalks user_newtalk entries to watchlist table entries ... \n" );
 472
 473         $user = new User();
 474         for ( $i = 1; $i <= $num_newtalks; $i++ ) {
 475                 $wluser = $wgDatabase->fetchObject( $res );
 476                 if ( $wluser->user_id == 0 ) { # anonymous users ... have IP numbers as "names"
 477                         if ( $user->isIP( $wluser->user_ip ) ) { # do only if it really looks like an IP number (double checked)
 478                                 $wgDatabase->replace( 'watchlist',
 479                                         array( array( 'wl_user', 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ) ),
 480                                         array( 'wl_user' => 0,
 481                                                 'wl_namespace' => NS_USER_TALK,
 482                                                 'wl_title' => $wluser->user_ip,
 483                                                 'wl_notificationtimestamp' => '19700101000000'
 484                                                 ), 'updaters.inc::do_watchlist_update2'
 485                                         );
 486                         }
 487                 } else { # normal users ... have user_ids
 488                         $user->setID( $wluser->user_id );
 489                         $wgDatabase->replace( 'watchlist',
 490                                 array( array( 'wl_user', 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ) ),
 491                                 array( 'wl_user' => $user->getID(),
 492                                         'wl_namespace' => NS_USER_TALK,
 493                                         'wl_title' => $user->getName(),
 494                                         'wl_notificationtimestamp' => '19700101000000'
 495                                         ), 'updaters.inc::do_watchlist_update3'
 496                                 );
 497                 }
 498         }
 499         wfOut( "Done.\n" );
 500 }
 501
 502
 503 function do_user_update() {
 504         global $wgDatabase;
 505         if ( $wgDatabase->fieldExists( 'user', 'user_emailauthenticationtimestamp' ) ) {
 506                 wfOut( "User table contains old email authentication field. Dropping... " );
 507                 $wgDatabase->sourceFile( archive( 'patch-email-authentication.sql' ) );
 508                 wfOut( "ok\n" );
 509         } else {
 510                 wfOut( "...user table does not contain old email authentication field.\n" );
 511         }
 512 }
 513
 514 /**
 515  * 1.4 betas were missing the 'binary' marker from logging.log_title,
 516  * which causes a collation mismatch error on joins in MySQL 4.1.
 517  */
 518 function check_bin( $table, $field, $patchFile ) {
 519         global $wgDatabase, $wgDBtype;
 520         if ( $wgDBtype != 'mysql' )
 521                 return;
 522         $tableName = $wgDatabase->tableName( $table );
 523         $res = $wgDatabase->query( "SELECT $field FROM $tableName LIMIT 0" );
 524         $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 525         $wgDatabase->freeResult( $res );
 526
 527         if ( in_array( 'binary', $flags ) ) {
 528                 wfOut( "$table table has correct $field encoding.\n" );
 529         } else {
 530                 wfOut( "Fixing $field encoding on $table table... " );
 531                 $wgDatabase->sourceFile( archive( $patchFile ) );
 532                 wfOut( "ok\n" );
 533         }
 534 }
 535
 536 function do_schema_restructuring() {
 537         global $wgDatabase;
 538         $fname = "do_schema_restructuring";
 539         if ( $wgDatabase->tableExists( 'page' ) ) {
 540                 wfOut( "...page table already exists.\n" );
 541         } else {
 542                 wfOut( "...converting from cur/old to page/revision/text DB structure.\n" );
 543                 wfOut( wfTimestamp( TS_DB ) );
 544                 wfOut( "......checking for duplicate entries.\n" );
 545
 546                 list ( $cur, $old, $page, $revision, $text ) = $wgDatabase->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 547
 548                 $rows = $wgDatabase->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 549                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", $fname );
 550
 551                 if ( $wgDatabase->numRows( $rows ) > 0 ) {
 552                         wfOut( wfTimestamp( TS_DB ) );
 553                         wfOut( "......<b>Found duplicate entries</b>\n" );
 554                         wfOut( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 555                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 556                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 557                                         $duplicate[$row->cur_namespace] = array();
 558                                 }
 559                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 560                                 wfOut( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 561                         }
 562                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 563                         $firstCond = true;
 564                         foreach ( $duplicate as $ns => $titles ) {
 565                                 if ( $firstCond ) {
 566                                         $firstCond = false;
 567                                 } else {
 568                                         $sql .= ' OR ';
 569                                 }
 570                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 571                                 $first = true;
 572                                 foreach ( $titles as $t ) {
 573                                         if ( $first ) {
 574                                                 $sql .= $wgDatabase->addQuotes( $t );
 575                                                 $first = false;
 576                                         } else {
 577                                                 $sql .= ', ' . $wgDatabase->addQuotes( $t );
 578                                         }
 579                                 }
 580                                 $sql .= ") ) \n";
 581                         }
 582                         # By sorting descending, the most recent entry will be the first in the list.
 583                         # All following entries will be deleted by the next while-loop.
 584                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 585
 586                         $rows = $wgDatabase->query( $sql, $fname );
 587
 588                         $prev_title = $prev_namespace = false;
 589                         $deleteId = array();
 590
 591                         while ( $row = $wgDatabase->fetchObject( $rows ) ) {
 592                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 593                                         $deleteId[] = $row->cur_id;
 594                                 }
 595                                 $prev_title     = $row->cur_title;
 596                                 $prev_namespace = $row->cur_namespace;
 597                         }
 598                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 599                         $rows = $wgDatabase->query( $sql, $fname );
 600                         wfOut( wfTimestamp( TS_DB ) );
 601                         wfOut( "......<b>Deleted</b> " . $wgDatabase->affectedRows() . " records.\n" );
 602                 }
 603
 604
 605                 wfOut( wfTimestamp( TS_DB ) );
 606                 wfOut( "......Creating tables.\n" );
 607                 $wgDatabase->query( "CREATE TABLE $page (
 608                         page_id int(8) unsigned NOT NULL auto_increment,
 609                         page_namespace int NOT NULL,
 610                         page_title varchar(255) binary NOT NULL,
 611                         page_restrictions tinyblob NOT NULL,
 612                         page_counter bigint(20) unsigned NOT NULL default '0',
 613                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 614                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 615                         page_random real unsigned NOT NULL,
 616                         page_touched char(14) binary NOT NULL default '',
 617                         page_latest int(8) unsigned NOT NULL,
 618                         page_len int(8) unsigned NOT NULL,
 619
 620                         PRIMARY KEY page_id (page_id),
 621                         UNIQUE INDEX name_title (page_namespace,page_title),
 622                         INDEX (page_random),
 623                         INDEX (page_len)
 624                         ) ENGINE=InnoDB", $fname );
 625                 $wgDatabase->query( "CREATE TABLE $revision (
 626                         rev_id int(8) unsigned NOT NULL auto_increment,
 627                         rev_page int(8) unsigned NOT NULL,
 628                         rev_comment tinyblob NOT NULL,
 629                         rev_user int(5) unsigned NOT NULL default '0',
 630                         rev_user_text varchar(255) binary NOT NULL default '',
 631                         rev_timestamp char(14) binary NOT NULL default '',
 632                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 633                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 634                         rev_len int(8) unsigned,
 635                         rev_parent_id int(8) unsigned default NULL,
 636                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 637                         UNIQUE INDEX rev_id (rev_id),
 638                         INDEX rev_timestamp (rev_timestamp),
 639                         INDEX page_timestamp (rev_page,rev_timestamp),
 640                         INDEX user_timestamp (rev_user,rev_timestamp),
 641                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 642                         ) ENGINE=InnoDB", $fname );
 643
 644                 wfOut( wfTimestamp( TS_DB ) );
 645                 wfOut( "......Locking tables.\n" );
 646                 $wgDatabase->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", $fname );
 647
 648                 $maxold = intval( $wgDatabase->selectField( 'old', 'max(old_id)', '', $fname ) );
 649                 wfOut( wfTimestamp( TS_DB ) );
 650                 wfOut( "......maxold is {$maxold}\n" );
 651
 652                 wfOut( wfTimestamp( TS_DB ) );
 653                 global $wgLegacySchemaConversion;
 654                 if ( $wgLegacySchemaConversion ) {
 655                         // Create HistoryBlobCurStub entries.
 656                         // Text will be pulled from the leftover 'cur' table at runtime.
 657                         wfOut( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 658                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 659                         $cur_flags = "'object'";
 660                 } else {
 661                         // Copy all cur text in immediately: this may take longer but avoids
 662                         // having to keep an extra table around.
 663                         wfOut( "......Moving text from cur.\n" );
 664                         $cur_text = 'cur_text';
 665                         $cur_flags = "''";
 666                 }
 667                 $wgDatabase->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 668                                         old_timestamp, old_minor_edit, old_flags)
 669                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 670                         FROM $cur", $fname );
 671
 672                 wfOut( wfTimestamp( TS_DB ) );
 673                 wfOut( "......Setting up revision table.\n" );
 674                 $wgDatabase->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 675                                 rev_minor_edit)
 676                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 677                                 old_timestamp, old_minor_edit
 678                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", $fname );
 679
 680                 wfOut( wfTimestamp( TS_DB ) );
 681                 wfOut( "......Setting up page table.\n" );
 682                 $wgDatabase->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 683                         page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 684                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 685                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 686                         FROM $cur,$revision
 687                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", $fname );
 688
 689                 wfOut( wfTimestamp( TS_DB ) );
 690                 wfOut( "......Unlocking tables.\n" );
 691                 $wgDatabase->query( "UNLOCK TABLES", $fname );
 692
 693                 wfOut( wfTimestamp( TS_DB ) );
 694                 wfOut( "......Renaming old.\n" );
 695                 $wgDatabase->query( "ALTER TABLE $old RENAME TO $text", $fname );
 696
 697                 wfOut( wfTimestamp( TS_DB ) );
 698                 wfOut( "...done.\n" );
 699         }
 700 }
 701
 702 function do_inverse_timestamp() {
 703         global $wgDatabase;
 704         if ( $wgDatabase->fieldExists( 'revision', 'inverse_timestamp' ) ) {
 705                 wfOut( "Removing revision.inverse_timestamp and fixing indexes... " );
 706                 $wgDatabase->sourceFile( archive( 'patch-inverse_timestamp.sql' ) );
 707                 wfOut( "ok\n" );
 708         } else {
 709                 wfOut( "revision timestamp indexes already up to 2005-03-13\n" );
 710         }
 711 }
 712
 713 function do_text_id() {
 714         global $wgDatabase;
 715         if ( $wgDatabase->fieldExists( 'revision', 'rev_text_id' ) ) {
 716                 wfOut( "...rev_text_id already in place.\n" );
 717         } else {
 718                 wfOut( "Adding rev_text_id field... " );
 719                 $wgDatabase->sourceFile( archive( 'patch-rev_text_id.sql' ) );
 720                 wfOut( "ok\n" );
 721         }
 722 }
 723
 724 function do_namespace_size() {
 725         $tables = array(
 726                 'page'          => 'page',
 727                 'archive'       => 'ar',
 728                 'recentchanges' => 'rc',
 729                 'watchlist'     => 'wl',
 730                 'querycache'    => 'qc',
 731                 'logging'       => 'log',
 732         );
 733         foreach ( $tables as $table => $prefix ) {
 734                 do_namespace_size_on( $table, $prefix );
 735                 flush();
 736         }
 737 }
 738
 739 function do_namespace_size_on( $table, $prefix ) {
 740         global $wgDatabase, $wgDBtype;
 741         if ( $wgDBtype != 'mysql' )
 742                 return;
 743         $field = $prefix . '_namespace';
 744
 745         $tablename = $wgDatabase->tableName( $table );
 746         $result = $wgDatabase->query( "SHOW COLUMNS FROM $tablename LIKE '$field'" );
 747         $info = $wgDatabase->fetchObject( $result );
 748         $wgDatabase->freeResult( $result );
 749
 750         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 751                 wfOut( "...$field is already a full int ($info->Type).\n" );
 752         } else {
 753                 wfOut( "Promoting $field from $info->Type to int... " );
 754
 755                 $sql = "ALTER TABLE $tablename MODIFY $field int NOT NULL";
 756                 $wgDatabase->query( $sql );
 757
 758                 wfOut( "ok\n" );
 759         }
 760 }
 761
 762 function do_pagelinks_update() {
 763         global $wgDatabase;
 764         if ( $wgDatabase->tableExists( 'pagelinks' ) ) {
 765                 wfOut( "...already have pagelinks table.\n" );
 766         } else {
 767                 wfOut( "Converting links and brokenlinks tables to pagelinks... " );
 768                 $wgDatabase->sourceFile( archive( 'patch-pagelinks.sql' ) );
 769                 wfOut( "ok\n" );
 770                 flush();
 771
 772                 global $wgCanonicalNamespaceNames;
 773                 foreach ( $wgCanonicalNamespaceNames as $ns => $name ) {
 774                         if ( $ns != 0 ) {
 775                                 do_pagelinks_namespace( $ns );
 776                         }
 777                 }
 778         }
 779 }
 780
 781 function do_pagelinks_namespace( $namespace ) {
 782         global $wgDatabase, $wgContLang;
 783
 784         $ns = intval( $namespace );
 785         wfOut( "Cleaning up broken links for namespace $ns... " );
 786
 787         $pagelinks = $wgDatabase->tableName( 'pagelinks' );
 788         $name = $wgContLang->getNsText( $ns );
 789         $prefix = $wgDatabase->strencode( $name );
 790         $likeprefix = str_replace( '_', '\\_', $prefix );
 791
 792         $sql = "UPDATE $pagelinks
 793                    SET pl_namespace=$ns,
 794                        pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 795                  WHERE pl_namespace=0
 796                    AND pl_title LIKE '$likeprefix:%'";
 797
 798         $wgDatabase->query( $sql, 'do_pagelinks_namespace' );
 799         wfOut( "ok\n" );
 800 }
 801
 802 function do_drop_img_type() {
 803         global $wgDatabase;
 804
 805         if ( $wgDatabase->fieldExists( 'image', 'img_type' ) ) {
 806                 wfOut( "Dropping unused img_type field in image table... " );
 807                 $wgDatabase->sourceFile( archive( 'patch-drop_img_type.sql' ) );
 808                 wfOut( "ok\n" );
 809         } else {
 810                 wfOut( "No img_type field in image table; Good.\n" );
 811         }
 812 }
 813
 814 function do_old_links_update() {
 815         global $wgDatabase;
 816         if ( $wgDatabase->tableExists( 'pagelinks' ) ) {
 817                 wfOut( "Already have pagelinks; skipping old links table updates.\n" );
 818         } else {
 819                 convertLinks(); flush();
 820         }
 821 }
 822
 823 function fix_ancient_imagelinks() {
 824         global $wgDatabase;
 825         $info = $wgDatabase->fieldInfo( 'imagelinks', 'il_from' );
 826         if ( $info && $info->type() === 'string' ) {
 827                 wfOut( "Fixing ancient broken imagelinks table.\n" );
 828                 wfOut( "NOTE: you will have to run maintenance/refreshLinks.php after this.\n" );
 829                 $wgDatabase->sourceFile( archive( 'patch-fix-il_from.sql' ) );
 830                 wfOut( "ok\n" );
 831         } else {
 832                 wfOut( "...il_from OK\n" );
 833         }
 834 }
 835
 836 function do_user_unique_update() {
 837         global $wgDatabase;
 838         $duper = new UserDupes( $wgDatabase );
 839         if ( $duper->hasUniqueIndex() ) {
 840                 wfOut( "Already have unique user_name index.\n" );
 841         } else {
 842                 if ( !$duper->clearDupes() ) {
 843                         wfOut( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 844                 }
 845                 wfOut( "Adding unique index on user_name... " );
 846                 $wgDatabase->sourceFile( archive( 'patch-user_nameindex.sql' ) );
 847                 wfOut( "ok\n" );
 848         }
 849 }
 850
 851 function do_user_groups_update() {
 852         $fname = 'do_user_groups_update';
 853         global $wgDatabase;
 854
 855         if ( $wgDatabase->tableExists( 'user_groups' ) ) {
 856                 wfOut( "...user_groups table already exists.\n" );
 857                 return do_user_groups_reformat();
 858         }
 859
 860         wfOut( "Adding user_groups table... " );
 861         $wgDatabase->sourceFile( archive( 'patch-user_groups.sql' ) );
 862         wfOut( "ok\n" );
 863
 864         if ( !$wgDatabase->tableExists( 'user_rights' ) ) {
 865                 if ( $wgDatabase->fieldExists( 'user', 'user_rights' ) ) {
 866                         wfOut( "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion..." );
 867                         $wgDatabase->sourceFile( archive( 'patch-user_rights.sql' ) );
 868                         wfOut( "ok\n" );
 869                 } else {
 870                         wfOut( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 871                         wfOut( "*** You may need to manually configure some sysops by manipulating\n" );
 872                         wfOut( "*** the user_groups table.\n" );
 873                         return;
 874                 }
 875         }
 876
 877         wfOut( "Converting user_rights table to user_groups... " );
 878         $result = $wgDatabase->select( 'user_rights',
 879                 array( 'ur_user', 'ur_rights' ),
 880                 array( "ur_rights != ''" ),
 881                 $fname );
 882
 883         while ( $row = $wgDatabase->fetchObject( $result ) ) {
 884                 $groups = array_unique(
 885                         array_map( 'trim',
 886                                 explode( ',', $row->ur_rights ) ) );
 887
 888                 foreach ( $groups as $group ) {
 889                         $wgDatabase->insert( 'user_groups',
 890                                 array(
 891                                         'ug_user'  => $row->ur_user,
 892                                         'ug_group' => $group ),
 893                                 $fname );
 894                 }
 895         }
 896         $wgDatabase->freeResult( $result );
 897         wfOut( "ok\n" );
 898 }
 899
 900 function do_user_groups_reformat() {
 901         # Check for bogus formats from previous 1.5 alpha code.
 902         global $wgDatabase;
 903         $info = $wgDatabase->fieldInfo( 'user_groups', 'ug_group' );
 904
 905         if ( $info->type() == 'int' ) {
 906                 $oldug = $wgDatabase->tableName( 'user_groups' );
 907                 $newug = $wgDatabase->tableName( 'user_groups_bogus' );
 908                 wfOut( "user_groups is in bogus intermediate format. Renaming to $newug... " );
 909                 $wgDatabase->query( "ALTER TABLE $oldug RENAME TO $newug" );
 910                 wfOut( "ok\n" );
 911
 912                 wfOut( "Re-adding fresh user_groups table... " );
 913                 $wgDatabase->sourceFile( archive( 'patch-user_groups.sql' ) );
 914                 wfOut( "ok\n" );
 915
 916                 wfOut( "***\n" );
 917                 wfOut( "*** WARNING: You will need to manually fix up user permissions in the user_groups\n" );
 918                 wfOut( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 919                 wfOut( "***\n" );
 920         } else {
 921                 wfOut( "...user_groups is in current format.\n" );
 922         }
 923
 924 }
 925
 926 function do_watchlist_null() {
 927         # Make sure wl_notificationtimestamp can be NULL,
 928         # and update old broken items.
 929         global $wgDatabase;
 930         $info = $wgDatabase->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 931
 932         if ( !$info->nullable() ) {
 933                 wfOut( "Making wl_notificationtimestamp nullable... " );
 934                 $wgDatabase->sourceFile( archive( 'patch-watchlist-null.sql' ) );
 935                 wfOut( "ok\n" );
 936         } else {
 937                 wfOut( "...wl_notificationtimestamp is already nullable.\n" );
 938         }
 939
 940 }
 941
 942 /**
 943  * @bug 3946
 944  */
 945 function do_page_random_update() {
 946         global $wgDatabase;
 947
 948         wfOut( "Setting page_random to a random value on rows where it equals 0..." );
 949
 950         $page = $wgDatabase->tableName( 'page' );
 951         $wgDatabase->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", 'do_page_random_update' );
 952         $rows = $wgDatabase->affectedRows();
 953
 954         wfOut( "changed $rows rows\n" );
 955 }
 956
 957 function do_templatelinks_update() {
 958         global $wgDatabase, $wgLoadBalancer;
 959         $fname = 'do_templatelinks_update';
 960
 961         if ( $wgDatabase->tableExists( 'templatelinks' ) ) {
 962                 wfOut( "...templatelinks table already exists\n" );
 963                 return;
 964         }
 965         wfOut( "Creating templatelinks table...\n" );
 966         $wgDatabase->sourceFile( archive( 'patch-templatelinks.sql' ) );
 967         wfOut( "Populating...\n" );
 968         if ( isset( $wgLoadBalancer ) && $wgLoadBalancer->getServerCount() > 1 ) {
 969                 // Slow, replication-friendly update
 970                 $res = $wgDatabase->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 971                         array( 'pl_namespace' => NS_TEMPLATE ), $fname );
 972                 $count = 0;
 973                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
 974                         $count = ( $count + 1 ) % 100;
 975                         if ( $count == 0 ) {
 976                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
 977                                         wfWaitForSlaves( 10 );
 978                                 } else {
 979                                         sleep( 1 );
 980                                 }
 981                         }
 982                         $wgDatabase->insert( 'templatelinks',
 983                                 array(
 984                                         'tl_from' => $row->pl_from,
 985                                         'tl_namespace' => $row->pl_namespace,
 986                                         'tl_title' => $row->pl_title,
 987                                 ), $fname
 988                         );
 989
 990                 }
 991                 $wgDatabase->freeResult( $res );
 992         } else {
 993                 // Fast update
 994                 $wgDatabase->insertSelect( 'templatelinks', 'pagelinks',
 995                         array(
 996                                 'tl_from' => 'pl_from',
 997                                 'tl_namespace' => 'pl_namespace',
 998                                 'tl_title' => 'pl_title'
 999                         ), array(
1000                                 'pl_namespace' => 10
1001                         ), $fname
1002                 );
1003         }
1004         wfOut( "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n" );
1005 }
1006
1007 // Add index on ( rc_namespace, rc_user_text ) [Jul. 2006]
1008 // Add index on ( rc_user_text, rc_timestamp ) [Nov. 2006]
1009 function do_rc_indices_update() {
1010         global $wgDatabase;
1011         wfOut( "Checking for additional recent changes indices...\n" );
1012
1013         $indexes = array(
1014                 'rc_ns_usertext' => 'patch-recentchanges-utindex.sql',
1015                 'rc_user_text' => 'patch-rc_user_text-index.sql',
1016         );
1017
1018         foreach ( $indexes as $index => $patch ) {
1019                 $info = $wgDatabase->indexInfo( 'recentchanges', $index, __METHOD__ );
1020                 if ( !$info ) {
1021                         wfOut( "...index `{$index}` not found; adding..." );
1022                         $wgDatabase->sourceFile( archive( $patch ) );
1023                         wfOut( "done.\n" );
1024                 } else {
1025                         wfOut( "...index `{$index}` seems ok.\n" );
1026                 }
1027         }
1028 }
1029
1030 function index_has_field( $table, $index, $field ) {
1031         global $wgDatabase;
1032         wfOut( "Checking if $table index $index includes field $field...\n" );
1033         $info = $wgDatabase->indexInfo( $table, $index, __METHOD__ );
1034         if ( $info ) {
1035                 foreach ( $info as $row ) {
1036                         if ( $row->Column_name == $field ) {
1037                                 wfOut( "...index $index on table $table seems to be ok\n" );
1038                                 return true;
1039                         }
1040                 }
1041         }
1042         wfOut( "...index $index on table $table has no field $field; adding\n" );
1043         return false;
1044 }
1045
1046 function do_backlinking_indices_update() {
1047         global $wgDatabase;
1048         wfOut( "Checking for backlinking indices...\n" );
1049         if ( !index_has_field( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
1050                 !index_has_field( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
1051                 !index_has_field( 'imagelinks', 'il_to', 'il_from' ) )
1052         {
1053                 $wgDatabase->sourceFile( archive( 'patch-backlinkindexes.sql' ) );
1054                 wfOut( "...backlinking indices updated\n" );
1055         }
1056 }
1057
1058 function do_categorylinks_indices_update() {
1059         global $wgDatabase;
1060         wfOut( "Checking for categorylinks indices...\n" );
1061         if ( !index_has_field( 'categorylinks', 'cl_sortkey', 'cl_from' ) )
1062         {
1063                 $wgDatabase->sourceFile( archive( 'patch-categorylinksindex.sql' ) );
1064                 wfOut( "...categorylinks indices updated\n" );
1065         }
1066 }
1067
1068 function do_filearchive_indices_update() {
1069         global $wgDatabase;
1070         wfOut( "Checking filearchive indices...\n" );
1071         $info = $wgDatabase->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
1072         if ( !$info )
1073         {
1074                 $wgDatabase->sourceFile( archive( 'patch-filearchive-user-index.sql' ) );
1075                 wfOut( "...filearchive indices updated\n" );
1076         }
1077 }
1078
1079 function maybe_do_profiling_memory_update() {
1080         global $wgDatabase;
1081         if ( !$wgDatabase->tableExists( 'profiling' ) ) {
1082                 // Simply ignore
1083         } elseif ( $wgDatabase->fieldExists( 'profiling', 'pf_memory' ) ) {
1084                 wfOut( "profiling table has pf_memory field.\n" );
1085         } else {
1086                 wfOut( "Adding pf_memory field to table profiling..." );
1087                 $wgDatabase->sourceFile( archive( 'patch-profiling-memory.sql' ) );
1088                 wfOut( "ok\n" );
1089         }
1090 }
1091
1092 function do_stats_init() {
1093         // Sometimes site_stats table is not properly populated.
1094         global $wgDatabase;
1095         wfOut( "Checking site_stats row..." );
1096         $row = $wgDatabase->selectRow( 'site_stats', '*', array( 'ss_row_id' => 1 ), __METHOD__ );
1097         if ( $row === false ) {
1098                 wfOut( "data is missing! rebuilding...\n" );
1099         } elseif ( isset( $row->site_stats ) && $row->ss_total_pages == -1 ) {
1100                 wfOut( "missing ss_total_pages, rebuilding...\n" );
1101         } else {
1102                 wfOut( "ok.\n" );
1103                 return;
1104         }
1105         SiteStatsInit::doAllAndCommit( false );
1106 }
1107
1108 function do_active_users_init() {
1109         global $wgDatabase;
1110         $activeUsers = $wgDatabase->selectField( 'site_stats', 'ss_active_users', false, __METHOD__ );
1111         if ( $activeUsers == -1 ) {
1112                 $activeUsers = $wgDatabase->selectField( 'recentchanges',
1113                         'COUNT( DISTINCT rc_user_text )',
1114                         array( 'rc_user != 0', 'rc_bot' => 0, "rc_log_type != 'newusers'" ), __METHOD__
1115                 );
1116                 $wgDatabase->update( 'site_stats',
1117                         array( 'ss_active_users' => intval( $activeUsers ) ),
1118                         array( 'ss_row_id' => 1 ), __METHOD__, array( 'LIMIT' => 1 )
1119                 );
1120         }
1121         wfOut( "...ss_active_users user count set...\n" );
1122 }
1123
1124 function purge_cache() {
1125         global $wgDatabase;
1126         # We can't guarantee that the user will be able to use TRUNCATE,
1127         # but we know that DELETE is available to us
1128         wfOut( "Purging caches..." );
1129         $wgDatabase->delete( 'objectcache', '*', __METHOD__ );
1130         wfOut( "done.\n" );
1131 }
1132
1133 function do_all_updates( $shared = false, $purge = true ) {
1134         global $wgNewTables, $wgExtModifiedFields, $wgNewFields, $wgRenamedTables, $wgSharedDB, $wgSharedTables, $wgDatabase, $wgDBtype, $IP;
1135
1136         wfRunHooks( 'LoadExtensionSchemaUpdates' );
1137
1138         $doUser = $shared ? $wgSharedDB && in_array( 'user', $wgSharedTables ) : !$wgSharedDB || !in_array( 'user', $wgSharedTables );
1139
1140         if ( $wgDBtype === 'postgres' ) {
1141                 do_postgres_updates();
1142                 return;
1143         }
1144
1145         # Run core updates in sequence...
1146         global $wgUpdates;
1147         if ( isset( $wgUpdates[$wgDBtype] ) ) {
1148                 foreach ( $wgUpdates[$wgDBtype] as $params ) {
1149                         $func = array_shift( $params );
1150                         call_user_func_array( $func, $params );
1151                         flush();
1152                 }
1153         }
1154
1155         // / @fixme clean up this mess too!
1156         global $wgExtNewTables, $wgExtNewFields, $wgExtNewIndexes;
1157         # Add missing extension tables
1158         foreach ( $wgExtNewTables as $tableRecord ) {
1159                 add_table( $tableRecord[0], $tableRecord[1], true );
1160                 flush();
1161         }
1162         # Add missing extension fields
1163         foreach ( $wgExtNewFields as $fieldRecord ) {
1164                 if ( $fieldRecord[0] != 'user' || $doUser ) {
1165                         add_field( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1166                 }
1167                 flush();
1168         }
1169         # Add missing extension indexes
1170         foreach ( $wgExtNewIndexes as $fieldRecord ) {
1171                 add_index( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1172                 flush();
1173         }
1174         # Add modified extension fields
1175         foreach ( $wgExtModifiedFields as $fieldRecord ) {
1176                 modify_field( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
1177                 flush();
1178         }
1179
1180
1181         wfOut( "Deleting old default messages (this may take a long time!)..." );
1182         if ( !defined( 'MW_NO_SETUP' ) ) {
1183                 define( 'MW_NO_SETUP', true );
1184         }
1185         require_once 'deleteDefaultMessages.php';
1186         DeleteDefaultMessages::reallyExecute();
1187         wfOut( "Done\n" );
1188
1189         do_stats_init();
1190
1191         if ( $purge ) {
1192                 purge_cache();
1193         }
1194 }
1195
1196 function archive( $name ) {
1197         global $wgDBtype, $IP;
1198         if ( file_exists( "$IP/maintenance/$wgDBtype/archives/$name" ) ) {
1199                 return "$IP/maintenance/$wgDBtype/archives/$name";
1200         } else {
1201                 return "$IP/maintenance/archives/$name";
1202         }
1203 }
1204
1205 function do_restrictions_update() {
1206         # Adding page_restrictions table, obsoleting page.page_restrictions.
1207         #  Migrating old restrictions to new table
1208         # -- Andrew Garrett, January 2007.
1209
1210         global $wgDatabase;
1211
1212         $name = 'page_restrictions';
1213         $patch = 'patch-page_restrictions.sql';
1214         $patch2 = 'patch-page_restrictions_sortkey.sql';
1215
1216         if ( $wgDatabase->tableExists( $name ) ) {
1217                 wfOut( "...$name table already exists.\n" );
1218         } else {
1219                 wfOut( "Creating $name table..." );
1220                 $wgDatabase->sourceFile( archive( $patch ) );
1221                 $wgDatabase->sourceFile( archive( $patch2 ) );
1222                 wfOut( "ok\n" );
1223
1224                 wfOut( "Migrating old restrictions to new table..." );
1225
1226                 $res = $wgDatabase->select( 'page', array( 'page_id', 'page_restrictions' ), array( "page_restrictions!=''", "page_restrictions!='edit=:move='" ), __METHOD__ );
1227
1228                 $count = 0;
1229
1230                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
1231                         $count = ( $count + 1 ) % 100;
1232
1233                         if ( $count == 0 ) {
1234                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
1235                                         wfWaitForSlaves( 10 );
1236                                 } else {
1237                                         sleep( 1 );
1238                                 }
1239                         }
1240
1241                         # Figure out what the restrictions are..
1242                         $id = $row->page_id;
1243                         $flatrestrictions = explode( ':', $row->page_restrictions );
1244
1245                         $restrictions = array ();
1246                         foreach ( $flatrestrictions as $restriction ) {
1247                                 $thisrestriction = explode( '=', $restriction, 2 );
1248                                 if ( count( $thisrestriction ) == 1 ) {
1249                                         // Compatibility with old protections from before
1250                                         // separate move protection was added.
1251                                         list( $level ) = $thisrestriction;
1252                                         if ( $level ) {
1253                                                 $restrictions['edit'] = $level;
1254                                                 $restrictions['move'] = $level;
1255                                         }
1256                                 } else {
1257                                         list( $type, $level ) = $thisrestriction;
1258                                         if ( $level ) {
1259                                                 $restrictions[$type] = $level;
1260                                         }
1261                                 }
1262
1263                         $wgDatabase->update( 'page', array ( 'page_restrictions' => '' ), array( 'page_id' => $id ), __METHOD__ );
1264
1265                         }
1266
1267                         foreach ( $restrictions as $type => $level ) {
1268                                 $wgDatabase->insert( 'page_restrictions', array ( 'pr_page' => $id,
1269                                                                                         'pr_type' => $type,
1270                                                                                         'pr_level' => $level,
1271                                                                                         'pr_cascade' => 0,
1272                                                                                         'pr_expiry' => 'infinity' ),
1273                                                                                         __METHOD__ );
1274                         }
1275                 }
1276                 wfOut( "ok\n" );
1277         }
1278 }
1279
1280 function do_category_population() {
1281         if ( update_row_exists( 'populate category' ) ) {
1282                 wfOut( "...category table already populated.\n" );
1283                 return;
1284         }
1285         require_once( 'populateCategory.php' );
1286         wfOut( "Populating category table, printing progress markers.  " ) .
1287 "For large databases, you\n" .
1288 "may want to hit Ctrl-C and do this manually with maintenance/\n" .
1289 "populateCategory.php.\n";
1290         $task = new PopulateCategory();
1291         $task->execute();
1292         wfOut( "Done populating category table.\n" );
1293 }
1294
1295 function do_populate_parent_id() {
1296         if ( update_row_exists( 'populate rev_parent_id' ) ) {
1297                 wfOut( "...rev_parent_id column already populated.\n" );
1298                 return;
1299         }
1300         require_once( 'populateParentId.php' );
1301         $task = new PopulateParentId();
1302         $task->execute();
1303 }
1304
1305 function do_populate_rev_len() {
1306         if ( update_row_exists( 'populate rev_len' ) ) {
1307                 wfOut( "...rev_len column already populated.\n" );
1308                 return;
1309         }
1310         require_once( 'populateRevisionLength.php' );
1311         $task = new PopulateRevisionLength();
1312         $task->execute();
1313 }
1314
1315 function sqlite_initial_indexes() {
1316         global $wgDatabase;
1317         // initial-indexes.sql fails if the indexes are already present, so we perform a quick check if our database is newer.
1318         if ( update_row_exists( 'initial_indexes' ) || $wgDatabase->indexExists( 'user', 'user_name' ) ) {
1319                 wfOut( "...have initial indexes\n" );
1320                 return;
1321         }
1322         wfOut( "Adding initial indexes..." );
1323         $wgDatabase->sourceFile( archive( 'initial-indexes.sql' ) );
1324         wfOut( "done\n" );
1325 }
1326
1327 function sqlite_setup_searchindex() {
1328         global $wgDatabase;
1329         $module = $wgDatabase->getFulltextSearchModule();
1330         $fts3tTable = update_row_exists( 'fts3' );
1331         if ( $fts3tTable &&  !$module ) {
1332                 wfOut( '...PHP is missing FTS3 support, downgrading tables...' );
1333                 $wgDatabase->sourceFile( archive( 'searchindex-no-fts.sql' ) );
1334                 wfOut( "done\n" );
1335         } elseif ( !$fts3tTable && $module == 'FTS3' ) {
1336                 wfOut( '...adding FTS3 search capabilities...' );
1337                 $wgDatabase->sourceFile( archive( 'searchindex-fts3.sql' ) );
1338                 wfOut( "done\n" );
1339         } else {
1340                 wfOut( "...fulltext search table appears to be in order.\n" );
1341         }
1342 }
1343
1344 function do_unique_pl_tl_il() {
1345         global $wgDatabase;
1346         $info = $wgDatabase->indexInfo( 'pagelinks', 'pl_namespace' );
1347         if ( is_array( $info ) && !$info[0]->Non_unique ) {
1348                 wfOut( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
1349         } else {
1350                 wfOut( "Making pl_namespace, tl_namespace and il_to indices UNIQUE... " );
1351                 $wgDatabase->sourceFile( archive( 'patch-pl-tl-il-unique.sql' ) );
1352                 wfOut( "ok\n" );
1353         }
1354 }
1355
1356 function do_log_search_population() {
1357         global $wgDatabase;
1358         if ( update_row_exists( 'populate log_search' ) ) {
1359                 wfOut( "...log_search table already populated.\n" );
1360                 return;
1361         }
1362         require_once( 'populateLogSearch.php' );
1363         wfOut(
1364 "Populating log_search table, printing progress markers. For large\n" .
1365 "databases, you may want to hit Ctrl-C and do this manually with\n" .
1366 "maintenance/populateLogSearch.php.\n" );
1367         $task = new PopulateLogSearch();
1368         $task->execute();
1369         wfOut( "Done populating log_search table.\n" );
1370 }
1371
1372 function rename_eu_wiki_id() {
1373         global $wgDatabase;
1374         wfOut( "Renaming eu_wiki_id -> eu_local_id... " );
1375         if ( $wgDatabase->fieldExists( 'external_user', 'eu_local_id' ) ) {
1376                 wfOut( "already done.\n" );
1377                 return;
1378         }
1379         $wgDatabase->sourceFile( archive( 'patch-eu_local_id.sql' ) );
1380         wfOut( "ok\n" );
1381 }
1382
1383 function do_update_transcache_field() {
1384         global $wgDatabase;
1385         if ( update_row_exists( 'convert transcache field' ) ) {
1386                 wfOut( "...transcache tc_time already converted.\n" );
1387                 return;
1388         } else {
1389                 wfOut( "Converting tc_time from UNIX epoch to MediaWiki timestamp... " );
1390                 $wgDatabase->sourceFile( archive( 'patch-tc-timestamp.sql' ) );
1391                 wfOut( "ok\n" );
1392         }
1393 }
1394
1395 function do_update_mime_minor_field() {
1396         if ( update_row_exists( 'mime_minor_length' ) ) {
1397                 wfOut( "*_mime_minor fields are already long enough.\n" );
1398         } else {
1399                 global $wgDatabase;
1400                 wfOut( "Altering all *_mime_minor fields to 100 bytes in size ... " );
1401                 $wgDatabase->sourceFile( archive( 'patch-mime_minor_length.sql' ) );
1402                 wfOut( "ok\n" );
1403         }
1404 }
1405
1406
1407
1408 /***********************************************************************
1409  * Start PG stuff
1410  * TODO: merge with above
1411  ***********************************************************************/
1412
1413 function pg_describe_table( $table ) {
1414         global $wgDatabase, $wgDBmwschema;
1415         $q = <<<END
1416 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
1417         WHERE pg_class.relnamespace = pg_namespace.oid
1418           AND attrelid=pg_class.oid AND attnum > 0
1419           AND relname=%s AND nspname=%s
1420 END;
1421         $res = $wgDatabase->query( sprintf( $q,
1422                         $wgDatabase->addQuotes( $table ),
1423                         $wgDatabase->addQuotes( $wgDBmwschema ) ) );
1424         if ( !$res )
1425                 return null;
1426
1427         $cols = array();
1428         while ( $r = $wgDatabase->fetchRow( $res ) ) {
1429                 $cols[] = array(
1430                                 "name" => $r[0],
1431                                 "ord" => $r[1],
1432                         );
1433         }
1434         return $cols;
1435 }
1436
1437 function pg_describe_index( $idx ) {
1438         global $wgDatabase, $wgDBmwschema;
1439
1440         // first fetch the key (which is a list of columns ords) and
1441         // the table the index applies to (an oid)
1442         $q = <<<END
1443 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
1444         WHERE nspname=%s
1445           AND pg_class.relnamespace = pg_namespace.oid
1446           AND relname=%s
1447           AND indexrelid=pg_class.oid
1448 END;
1449         $res = $wgDatabase->query( sprintf( $q,
1450                         $wgDatabase->addQuotes( $wgDBmwschema ),
1451                         $wgDatabase->addQuotes( $idx ) ) );
1452         if ( !$res )
1453                 return null;
1454         if ( !( $r = $wgDatabase->fetchRow( $res ) ) ) {
1455                 $wgDatabase->freeResult( $res );
1456                 return null;
1457         }
1458
1459         $indkey = $r[0];
1460         $relid = intval( $r[1] );
1461         $indkeys = explode( " ", $indkey );
1462         $wgDatabase->freeResult( $res );
1463
1464         $colnames = array();
1465         foreach ( $indkeys as $rid ) {
1466                 $query = <<<END
1467 SELECT attname FROM pg_class, pg_attribute
1468         WHERE attrelid=$relid
1469           AND attnum=%d
1470           AND attrelid=pg_class.oid
1471 END;
1472                 $r2 = $wgDatabase->query( sprintf( $query, $rid ) );
1473                 if ( !$r2 )
1474                         return null;
1475                 if ( !( $row2 = $wgDatabase->fetchRow( $r2 ) ) ) {
1476                         $wgDatabase->freeResult( $r2 );
1477                         return null;
1478                 }
1479                 $colnames[] = $row2[0];
1480                 $wgDatabase->freeResult( $r2 );
1481         }
1482
1483         return $colnames;
1484 }
1485
1486 function pg_index_exists( $table, $index ) {
1487         global $wgDatabase, $wgDBmwschema;
1488         $exists = $wgDatabase->selectField( "pg_indexes", "indexname",
1489                         array(  "indexname" => $index,
1490                                 "tablename" => $table,
1491                                 "schemaname" => $wgDBmwschema ) );
1492         return $exists === $index;
1493 }
1494
1495 function pg_fkey_deltype( $fkey ) {
1496         global $wgDatabase, $wgDBmwschema;
1497         $q = <<<END
1498 SELECT confdeltype FROM pg_constraint, pg_namespace
1499         WHERE connamespace=pg_namespace.oid
1500           AND nspname=%s
1501           AND conname=%s;
1502 END;
1503         $r = $wgDatabase->query( sprintf( $q,
1504                 $wgDatabase->addQuotes( $wgDBmwschema ),
1505                 $wgDatabase->addQuotes( $fkey ) ) );
1506         if ( !( $row = $wgDatabase->fetchRow( $r ) ) )
1507                 return null;
1508         return $row[0];
1509 }
1510
1511 function pg_rule_def( $table, $rule ) {
1512         global $wgDatabase, $wgDBmwschema;
1513         $q = <<<END
1514 SELECT definition FROM pg_rules
1515         WHERE schemaname = %s
1516           AND tablename = %s
1517           AND rulename = %s
1518 END;
1519         $r = $wgDatabase->query( sprintf( $q,
1520                         $wgDatabase->addQuotes( $wgDBmwschema ),
1521                         $wgDatabase->addQuotes( $table ),
1522                         $wgDatabase->addQuotes( $rule ) ) );
1523         $row = $wgDatabase->fetchRow( $r );
1524         if ( !$row )
1525                 return null;
1526         $d = $row[0];
1527         $wgDatabase->freeResult( $r );
1528         return $d;
1529 }
1530
1531 function do_postgres_updates() {
1532         global $wgDatabase, $wgVersion, $wgDBmwschema, $wgDBts2schema, $wgShowExceptionDetails, $wgDBuser;
1533
1534         # # Gather version numbers in case we need them
1535         $version = $wgDatabase->getServerVersion(); # # long string
1536         $numver = $wgDatabase->numeric_version; # # X.Y e.g. 8.3
1537
1538         $wgShowExceptionDetails = 1;
1539
1540         # Just in case their LocalSettings.php does not have this:
1541         if ( !isset( $wgDBmwschema ) )
1542                 $wgDBmwschema = 'mediawiki';
1543
1544         # Verify that this user is configured correctly
1545         $safeuser = $wgDatabase->addQuotes( $wgDBuser );
1546         $SQL = "SELECT array_to_string(useconfig,'*') FROM pg_catalog.pg_user WHERE usename = $safeuser";
1547         $config = pg_fetch_result( $wgDatabase->doQuery( $SQL ), 0, 0 );
1548         $conf = array();
1549         foreach ( explode( '*', $config ) as $c ) {
1550                 list( $x, $y ) = explode( '=', $c );
1551                 $conf[$x] = $y;
1552         }
1553         if ( !array_key_exists( 'search_path', $conf ) ) {
1554                 $search_path = '';
1555         }
1556         else {
1557                 $search_path = $conf['search_path'];
1558         }
1559         if ( strpos( $search_path, $wgDBmwschema ) === false ) {
1560                 wfOut( "Adding in schema \"$wgDBmwschema\" to search_path for user \"$wgDBuser\"\n" );
1561                 $search_path = "$wgDBmwschema, $search_path";
1562         }
1563         if ( strpos( $search_path, $wgDBts2schema ) === false ) {
1564                 wfOut( "Adding in schema \"$wgDBts2schema\" to search_path for user \"$wgDBuser\"\n" );
1565                 $search_path = "$search_path, $wgDBts2schema";
1566         }
1567         $search_path = str_replace( ', ,', ',', $search_path );
1568         if ( array_key_exists( 'search_path', $conf ) === false || $search_path != $conf['search_path'] ) {
1569                 $wgDatabase->doQuery( "ALTER USER $wgDBuser SET search_path = $search_path" );
1570                 $wgDatabase->doQuery( "SET search_path = $search_path" );
1571         }
1572         else {
1573                 $path = $conf['search_path'];
1574                 wfOut( "... search_path for user \"$wgDBuser\" looks correct ($path)\n" );
1575         }
1576         $goodconf = array(
1577                 'client_min_messages' => 'error',
1578                 'DateStyle'           => 'ISO, YMD',
1579                 'TimeZone'            => 'GMT'
1580         );
1581         foreach ( array_keys( $goodconf ) AS $key ) {
1582                 $value = $goodconf[$key];
1583                 if ( !array_key_exists( $key, $conf ) or $conf[$key] !== $value ) {
1584                         wfOut( "Setting $key to '$value' for user \"$wgDBuser\"\n" );
1585                         $wgDatabase->doQuery( "ALTER USER $wgDBuser SET $key = '$value'" );
1586                         $wgDatabase->doQuery( "SET $key = '$value'" );
1587                 }
1588                 else {
1589                         wfOut( "... default value of \"$key\" is correctly set to \"$value\" for user \"$wgDBuser\"\n" );
1590                 }
1591         }
1592
1593         $newsequences = array(
1594                 "logging_log_id_seq",
1595                 "page_restrictions_pr_id_seq",
1596         );
1597
1598         $newtables = array(
1599                 array( "category",          "patch-category.sql" ),
1600                 array( "mwuser",            "patch-mwuser.sql" ),
1601                 array( "pagecontent",       "patch-pagecontent.sql" ),
1602                 array( "querycachetwo",     "patch-querycachetwo.sql" ),
1603                 array( "page_props",        "patch-page_props.sql" ),
1604                 array( "page_restrictions", "patch-page_restrictions.sql" ),
1605                 array( "profiling",         "patch-profiling.sql" ),
1606                 array( "protected_titles",  "patch-protected_titles.sql" ),
1607                 array( "redirect",          "patch-redirect.sql" ),
1608                 array( "updatelog",         "patch-updatelog.sql" ),
1609                 array( 'change_tag',        'patch-change_tag.sql' ),
1610                 array( 'tag_summary',       'patch-change_tag.sql' ),
1611                 array( 'valid_tag',         'patch-change_tag.sql' ),
1612                 array( 'user_properties',   'patch-user_properties.sql' ),
1613                 array( 'log_search',        'patch-log_search.sql' ),
1614                 array( 'l10n_cache',        'patch-l10n_cache.sql' ),
1615                 array( 'iwlinks',           'patch-iwlinks.sql' ),
1616         );
1617
1618         $newcols = array(
1619                 array( "archive",       "ar_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1620                 array( "archive",       "ar_len",               "INTEGER" ),
1621                 array( "archive",       "ar_page_id",           "INTEGER" ),
1622                 array( "archive",       "ar_parent_id",         "INTEGER" ),
1623                 array( "image",         "img_sha1",             "TEXT NOT NULL DEFAULT ''" ),
1624                 array( "ipblocks",      "ipb_allow_usertalk",   "SMALLINT NOT NULL DEFAULT 0" ),
1625                 array( "ipblocks",      "ipb_anon_only",        "SMALLINT NOT NULL DEFAULT 0" ),
1626                 array( "ipblocks",      "ipb_by_text",          "TEXT NOT NULL DEFAULT ''" ),
1627                 array( "ipblocks",      "ipb_block_email",      "SMALLINT NOT NULL DEFAULT 0" ),
1628                 array( "ipblocks",      "ipb_create_account",   "SMALLINT NOT NULL DEFAULT 1" ),
1629                 array( "ipblocks",      "ipb_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
1630                 array( "ipblocks",      "ipb_enable_autoblock", "SMALLINT NOT NULL DEFAULT 1" ),
1631                 array( "filearchive",   "fa_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1632                 array( "logging",       "log_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
1633                 array( "logging",       "log_id",               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ),
1634                 array( "logging",       "log_params",           "TEXT" ),
1635                 array( "mwuser",        "user_editcount",       "INTEGER" ),
1636                 array( "mwuser",        "user_hidden",          "SMALLINT NOT NULL DEFAULT 0" ),
1637                 array( "mwuser",        "user_newpass_time",    "TIMESTAMPTZ" ),
1638                 array( "oldimage",      "oi_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1639                 array( "oldimage",      "oi_major_mime",        "TEXT NOT NULL DEFAULT 'unknown'" ),
1640                 array( "oldimage",      "oi_media_type",        "TEXT" ),
1641                 array( "oldimage",      "oi_metadata",          "BYTEA NOT NULL DEFAULT ''" ),
1642                 array( "oldimage",      "oi_minor_mime",        "TEXT NOT NULL DEFAULT 'unknown'" ),
1643                 array( "oldimage",      "oi_sha1",              "TEXT NOT NULL DEFAULT ''" ),
1644                 array( "page_restrictions", "pr_id",            "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_val')" ),
1645                 array( "profiling",     "pf_memory",            "NUMERIC(18,10) NOT NULL DEFAULT 0" ),
1646                 array( "recentchanges", "rc_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1647                 array( "recentchanges", "rc_log_action",        "TEXT" ),
1648                 array( "recentchanges", "rc_log_type",          "TEXT" ),
1649                 array( "recentchanges", "rc_logid",             "INTEGER NOT NULL DEFAULT 0" ),
1650                 array( "recentchanges", "rc_new_len",           "INTEGER" ),
1651                 array( "recentchanges", "rc_old_len",           "INTEGER" ),
1652                 array( "recentchanges", "rc_params",            "TEXT" ),
1653                 array( "redirect",      "rd_interwiki",         "TEXT NULL" ),
1654                 array( "redirect",      "rd_fragment",          "TEXT NULL" ),
1655                 array( "revision",      "rev_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
1656                 array( "revision",      "rev_len",              "INTEGER" ),
1657                 array( "revision",      "rev_parent_id",        "INTEGER DEFAULT NULL" ),
1658                 array( "site_stats",    "ss_active_users",      "INTEGER DEFAULT '-1'" ),
1659                 array( "user_newtalk",  "user_last_timestamp",  "TIMESTAMPTZ" ),
1660                 array( "logging",       "log_user_text",        "TEXT NOT NULL DEFAULT ''" ),
1661                 array( "logging",       "log_page",             "INTEGER" ),
1662         );
1663
1664
1665         # table, column, desired type, USING clause if needed (with new default if needed)
1666         $typechanges = array(
1667                 array( "archive",      "ar_deleted",      "smallint", "" ),
1668                 array( "archive",      "ar_minor_edit",   "smallint", "ar_minor_edit::smallint DEFAULT 0" ),
1669                 array( "filearchive",  "fa_deleted",      "smallint", "" ),
1670                 array( "filearchive",  "fa_height",       "integer",  "" ),
1671                 array( "filearchive",  "fa_metadata",     "bytea",    "decode(fa_metadata,'escape')" ),
1672                 array( "filearchive",  "fa_size",         "integer",  "" ),
1673                 array( "filearchive",  "fa_width",        "integer",  "" ),
1674                 array( "filearchive",  "fa_storage_group", "text",     "" ),
1675                 array( "filearchive",  "fa_storage_key",  "text",     "" ),
1676                 array( "image",        "img_metadata",    "bytea",    "decode(img_metadata,'escape')" ),
1677                 array( "image",        "img_size",        "integer",  "" ),
1678                 array( "image",        "img_width",       "integer",  "" ),
1679                 array( "image",        "img_height",      "integer",  "" ),
1680                 array( "interwiki",    "iw_local",        "smallint", "iw_local::smallint DEFAULT 0" ),
1681                 array( "interwiki",    "iw_trans",        "smallint", "iw_trans::smallint DEFAULT 0" ),
1682                 array( "ipblocks",     "ipb_auto",        "smallint", "ipb_auto::smallint DEFAULT 0" ),
1683                 array( "ipblocks",     "ipb_anon_only",   "smallint", "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ),
1684                 array( "ipblocks",     "ipb_create_account", "smallint", "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ),
1685                 array( "ipblocks",     "ipb_enable_autoblock", "smallint", "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ),
1686                 array( "ipblocks",     "ipb_block_email", "smallint", "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ),
1687                 array( "ipblocks",     "ipb_address",     "text",     "ipb_address::text" ),
1688                 array( "ipblocks",     "ipb_deleted",     "smallint", "ipb_deleted::smallint DEFAULT 0" ),
1689                 array( "math",         "math_inputhash",  "bytea",    "decode(math_inputhash,'escape')" ),
1690                 array( "math",         "math_outputhash", "bytea",    "decode(math_outputhash,'escape')" ),
1691                 array( "mwuser",       "user_token",      "text",     "" ),
1692                 array( "mwuser",       "user_email_token", "text",     "" ),
1693                 array( "objectcache",  "keyname",         "text",     "" ),
1694                 array( "oldimage",     "oi_height",       "integer",  "" ),
1695                 array( "oldimage",     "oi_metadata",     "bytea",    "decode(img_metadata,'escape')" ),
1696                 array( "oldimage",     "oi_size",         "integer",  "" ),
1697                 array( "oldimage",     "oi_width",        "integer",  "" ),
1698                 array( "page",         "page_is_redirect", "smallint", "page_is_redirect::smallint DEFAULT 0" ),
1699                 array( "page",         "page_is_new",     "smallint", "page_is_new::smallint DEFAULT 0" ),
1700                 array( "querycache",   "qc_value",        "integer",  "" ),
1701                 array( "querycachetwo", "qcc_value",       "integer",  "" ),
1702                 array( "recentchanges", "rc_bot",          "smallint", "rc_bot::smallint DEFAULT 0" ),
1703                 array( "recentchanges", "rc_deleted",      "smallint", "" ),
1704                 array( "recentchanges", "rc_minor",        "smallint", "rc_minor::smallint DEFAULT 0" ),
1705                 array( "recentchanges", "rc_new",          "smallint", "rc_new::smallint DEFAULT 0" ),
1706                 array( "recentchanges", "rc_type",         "smallint", "rc_type::smallint DEFAULT 0" ),
1707                 array( "recentchanges", "rc_patrolled",    "smallint", "rc_patrolled::smallint DEFAULT 0" ),
1708                 array( "revision",     "rev_deleted",     "smallint", "rev_deleted::smallint DEFAULT 0" ),
1709                 array( "revision",     "rev_minor_edit",  "smallint", "rev_minor_edit::smallint DEFAULT 0" ),
1710                 array( "templatelinks", "tl_namespace",    "smallint", "tl_namespace::smallint" ),
1711                 array( "user_newtalk", "user_ip",         "text",     "host(user_ip)" ),
1712         );
1713
1714         # table, column, nullability
1715         $nullchanges = array(
1716                 array( "oldimage", "oi_bits",       "NULL" ),
1717                 array( "oldimage", "oi_timestamp",  "NULL" ),
1718                 array( "oldimage", "oi_major_mime", "NULL" ),
1719                 array( "oldimage", "oi_minor_mime", "NULL" ),
1720         );
1721
1722         $newindexes = array(
1723                 array( "archive",       "archive_user_text",  "(ar_user_text)" ),
1724                 array( "image",         "img_sha1",           "(img_sha1)" ),
1725                 array( "oldimage",      "oi_sha1",            "(oi_sha1)" ),
1726                 array( "revision",      "rev_text_id_idx",    "(rev_text_id)" ),
1727                 array( "recentchanges", "rc_timestamp_bot",   "(rc_timestamp) WHERE rc_bot = 0" ),
1728                 array( "templatelinks", "templatelinks_from", "(tl_from)" ),
1729                 array( "watchlist",     "wl_user",            "(wl_user)" ),
1730                 array( "logging",       "logging_user_type_time", "(log_user, log_type, log_timestamp)" ),
1731                 array( "logging",       "logging_page_id_time",   "(log_page,log_timestamp)" ),
1732         );
1733
1734         $newrules = array(
1735         );
1736
1737         # # All FK columns should be deferred
1738         $deferredcols = array(
1739                 array( "archive",          "ar_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1740                 array( "categorylinks",    "cl_from",         "page(page_id) ON DELETE CASCADE" ),
1741                 array( "externallinks",    "el_from",         "page(page_id) ON DELETE CASCADE" ),
1742                 array( "filearchive",      "fa_deleted_user", "mwuser(user_id) ON DELETE SET NULL" ),
1743                 array( "filearchive",      "fa_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1744                 array( "image",            "img_user",        "mwuser(user_id) ON DELETE SET NULL" ),
1745                 array( "imagelinks",       "il_from",         "page(page_id) ON DELETE CASCADE" ),
1746                 array( "ipblocks",         "ipb_by",          "mwuser(user_id) ON DELETE CASCADE" ),
1747                 array( "ipblocks",         "ipb_user",        "mwuser(user_id) ON DELETE SET NULL" ),
1748                 array( "langlinks",        "ll_from",         "page(page_id) ON DELETE CASCADE" ),
1749                 array( "logging",          "log_user",        "mwuser(user_id) ON DELETE SET NULL" ),
1750                 array( "oldimage",         "oi_name",         "image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" ),
1751                 array( "oldimage",         "oi_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1752                 array( "pagelinks",        "pl_from",         "page(page_id) ON DELETE CASCADE" ),
1753                 array( "page_props",       "pp_page",         "page (page_id) ON DELETE CASCADE" ),
1754                 array( "page_restrictions", "pr_page",         "page(page_id) ON DELETE CASCADE" ),
1755                 array( "protected_titles", "pt_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1756                 array( "recentchanges",    "rc_cur_id",       "page(page_id) ON DELETE SET NULL" ),
1757                 array( "recentchanges",    "rc_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1758                 array( "redirect",         "rd_from",         "page(page_id) ON DELETE CASCADE" ),
1759                 array( "revision",         "rev_page",        "page (page_id) ON DELETE CASCADE" ),
1760                 array( "revision",         "rev_user",        "mwuser(user_id) ON DELETE RESTRICT" ),
1761                 array( "templatelinks",    "tl_from",         "page(page_id) ON DELETE CASCADE" ),
1762                 array( "trackbacks",       "tb_page",         "page(page_id) ON DELETE CASCADE" ),
1763                 array( "user_groups",      "ug_user",         "mwuser(user_id) ON DELETE CASCADE" ),
1764                 array( "user_newtalk",     "user_id",         "mwuser(user_id) ON DELETE CASCADE" ),
1765                 array( "user_properties",  "up_user",         "mwuser(user_id) ON DELETE CASCADE" ),
1766                 array( "watchlist",        "wl_user",         "mwuser(user_id) ON DELETE CASCADE" ),
1767         );
1768
1769         # Check new sequences, rename if needed
1770         foreach ( $newsequences as $ns ) {
1771                 if ( $wgDatabase->sequenceExists( 'pr_id_val' ) ) {
1772                         wfOut( "Updating sequence names\n" );
1773                         $wgDatabase->sourceFile( archive( 'patch-update_sequences.sql' ) );
1774                         continue;
1775                 } elseif ( $wgDatabase->sequenceExists( 'page_restrictions_pr_id_seq' ) ) {
1776                         wfOut( "... sequences already updated\n" );
1777                         continue;
1778                 } else {
1779                         wfOut( "Creating sequence \"$ns\"\n" );
1780                         $wgDatabase->query( "CREATE SEQUENCE $ns" );
1781                 }
1782         }
1783
1784         foreach ( $newtables as $nt ) {
1785                 if ( $wgDatabase->tableExists( $nt[0] ) ) {
1786                         wfOut( "... table \"$nt[0]\" already exists\n" );
1787                         continue;
1788                 }
1789
1790                 wfOut( "Creating table \"$nt[0]\"\n" );
1791                 $wgDatabase->sourceFile( archive( $nt[1] ) );
1792         }
1793
1794         # # Needed before newcols
1795         if ( $wgDatabase->tableExists( "archive2" ) ) {
1796                 wfOut( "Converting \"archive2\" back to normal archive table\n" );
1797                 if ( $wgDatabase->ruleExists( "archive", "archive_insert" ) ) {
1798                         wfOut( "Dropping rule \"archive_insert\"\n" );
1799                         $wgDatabase->query( "DROP RULE archive_insert ON archive" );
1800                 }
1801                 if ( $wgDatabase->ruleExists( "archive", "archive_delete" ) ) {
1802                         wfOut( "Dropping rule \"archive_delete\"\n" );
1803                         $wgDatabase->query( "DROP RULE archive_delete ON archive" );
1804                 }
1805                 $wgDatabase->sourceFile( archive( "patch-remove-archive2.sql" ) );
1806         }
1807         else
1808                 wfOut( "... obsolete table \"archive2\" does not exist\n" );
1809
1810         foreach ( $newcols as $nc ) {
1811                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1812                 if ( !is_null( $fi ) ) {
1813                         wfOut( "... column \"$nc[0].$nc[1]\" already exists\n" );
1814                         continue;
1815                 }
1816
1817                 wfOut( "Adding column \"$nc[0].$nc[1]\"\n" );
1818                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1819         }
1820
1821         foreach ( $typechanges as $tc ) {
1822                 $fi = $wgDatabase->fieldInfo( $tc[0], $tc[1] );
1823                 if ( is_null( $fi ) ) {
1824                         wfOut( "... error: expected column $tc[0].$tc[1] to exist\n" );
1825                         exit( 1 );
1826                 }
1827
1828                 if ( $fi->type() === $tc[2] )
1829                         wfOut( "... column \"$tc[0].$tc[1]\" is already of type \"$tc[2]\"\n" );
1830                 else {
1831                         wfOut( "Changing column type of \"$tc[0].$tc[1]\" from \"{$fi->type()}\" to \"$tc[2]\"\n" );
1832                         $sql = "ALTER TABLE $tc[0] ALTER $tc[1] TYPE $tc[2]";
1833                         if ( strlen( $tc[3] ) ) {
1834                                 $default = array();
1835                                 if ( preg_match( '/DEFAULT (.+)/', $tc[3], $default ) ) {
1836                                         $sqldef = "ALTER TABLE $tc[0] ALTER $tc[1] SET DEFAULT $default[1]";
1837                                         $wgDatabase->query( $sqldef );
1838                                         $tc[3] = preg_replace( '/\s*DEFAULT .+/', '', $tc[3] );
1839                                 }
1840                                 $sql .= " USING $tc[3]";
1841                         }
1842                         $sql .= ";\nCOMMIT;\n";
1843                         $wgDatabase->query( $sql );
1844                 }
1845         }
1846
1847         foreach ( $nullchanges as $nc ) {
1848                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1849                 if ( is_null( $fi ) ) {
1850                         wfOut( "... error: expected column $nc[0].$nc[1] to exist\n" );
1851                         exit( 1 );
1852                 }
1853                 if ( $fi->nullable() ) {
1854                         # # It's NULL - does it need to be NOT NULL?
1855                         if ( 'NOT NULL' === $nc[2] ) {
1856                                 wfOut( "Changing \"$nc[0].$nc[1]\" to not allow NULLs\n" );
1857                                 $wgDatabase->query( "ALTER TABLE $nc[0] ALTER $nc[1] SET NOT NULL" );
1858                         }
1859                         else {
1860                                 wfOut( "... column \"$nc[0].$nc[1]\" is already set as NULL\n" );
1861                         }
1862                 }
1863                 else {
1864                         # # It's NOT NULL - does it need to be NULL?
1865                         if ( 'NULL' === $nc[2] ) {
1866                                 wfOut( "Changing \"$nc[0].$nc[1]\" to allow NULLs\n" );
1867                                 $wgDatabase->query( "ALTER TABLE $nc[0] ALTER $nc[1] DROP NOT NULL" );
1868                         }
1869                         else {
1870                                 wfOut( "... column \"$nc[0].$nc[1]\" is already set as NOT NULL\n" );
1871                         }
1872                 }
1873         }
1874
1875         if ( $wgDatabase->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) {
1876                 wfOut( "Changing \"oldimage.oi_deleted\" to type \"smallint\"\n" );
1877                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
1878                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
1879                 $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
1880         }
1881         else
1882                 wfOut( "... column \"oldimage.oi_deleted\" is already of type \"smallint\"\n" );
1883
1884
1885         foreach ( $newindexes as $ni ) {
1886                 if ( pg_index_exists( $ni[0], $ni[1] ) ) {
1887                         wfOut( "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n" );
1888                         continue;
1889                 }
1890                 wfOut( "Creating index \"$ni[1]\" on table \"$ni[0]\" $ni[2]\n" );
1891                 $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
1892         }
1893
1894         foreach ( $newrules as $nr ) {
1895                 if ( $wgDatabase->ruleExists( $nr[0], $nr[1] ) ) {
1896                         wfOut( "... rule \"$nr[1]\" on table \"$nr[0]\" already exists\n" );
1897                         continue;
1898                 }
1899                 wfOut( "Adding rule \"$nr[1]\" to table \"$nr[0]\"\n" );
1900                 $wgDatabase->sourceFile( archive( $nr[2] ) );
1901         }
1902
1903         if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
1904                 wfOut( "... table \"oldimage\" has correct cascading delete/update foreign key to image\n" );
1905         }
1906         else {
1907                 if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey" ) ) {
1908                         $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
1909                 }
1910                 if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
1911                         $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
1912                 }
1913                 wfOut( "Making foreign key on table \"oldimage\" (to image) a cascade delete/update\n" );
1914                 $wgDatabase->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
1915                         "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" );
1916         }
1917
1918         if ( !$wgDatabase->triggerExists( "page", "page_deleted" ) ) {
1919                 wfOut( "Adding function and trigger \"page_deleted\" to table \"page\"\n" );
1920                 $wgDatabase->sourceFile( archive( 'patch-page_deleted.sql' ) );
1921         }
1922         else
1923                 wfOut( "... table \"page\" has \"page_deleted\" trigger\n" );
1924
1925         $fi = $wgDatabase->fieldInfo( "recentchanges", "rc_cur_id" );
1926         if ( !$fi->nullable() ) {
1927                 wfOut( "Removing NOT NULL constraint from \"recentchanges.rc_cur_id\"\n" );
1928                 $wgDatabase->sourceFile( archive( 'patch-rc_cur_id-not-null.sql' ) );
1929         }
1930         else
1931                 wfOut( "... column \"recentchanges.rc_cur_id\" has a NOT NULL constraint\n" );
1932
1933         $pu = pg_describe_index( "pagelink_unique" );
1934         if ( !is_null( $pu ) && ( $pu[0] != "pl_from" || $pu[1] != "pl_namespace" || $pu[2] != "pl_title" ) ) {
1935                 wfOut( "Dropping obsolete version of index \"pagelink_unique index\"\n" );
1936                 $wgDatabase->query( "DROP INDEX pagelink_unique" );
1937                 $pu = null;
1938         }
1939         else
1940                 wfOut( "... obsolete version of index \"pagelink_unique index\" does not exist\n" );
1941
1942         if ( is_null( $pu ) ) {
1943                 wfOut( "Creating index \"pagelink_unique index\"\n" );
1944                 $wgDatabase->query( "CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)" );
1945         }
1946         else
1947                 wfOut( "... index \"pagelink_unique_index\" already exists\n" );
1948
1949         if ( pg_fkey_deltype( "revision_rev_user_fkey" ) == 'r' ) {
1950                 wfOut( "... constraint \"revision_rev_user_fkey\" is ON DELETE RESTRICT\n" );
1951         }
1952         else {
1953                 wfOut( "Changing constraint \"revision_rev_user_fkey\" to ON DELETE RESTRICT\n" );
1954                 $wgDatabase->sourceFile( archive( 'patch-revision_rev_user_fkey.sql' ) );
1955         }
1956
1957         # Fix ipb_address index
1958         if ( pg_index_exists( 'ipblocks', 'ipb_address' ) ) {
1959                 wfOut( "Removing deprecated index 'ipb_address'...\n" );
1960                 $wgDatabase->query( 'DROP INDEX ipb_address' );
1961         }
1962         if ( pg_index_exists( 'ipblocks', 'ipb_address_unique' ) ) {
1963                 wfOut( "... have ipb_address_unique\n" );
1964         }
1965         else {
1966                 wfOut( "Adding ipb_address_unique index\n" );
1967                 $wgDatabase->sourceFile( archive( 'patch-ipb_address_unique.sql' ) );
1968         }
1969
1970         # Fix iwlinks index
1971         if ( pg_index_exists( 'iwlinks', 'iwl_prefix' ) ) {
1972                 wfOut( "Replacing index 'iwl_prefix' with 'iwl_prefix_from_title'...\n" );
1973                 $wgDatabase->sourceFile( archive( 'patch-ipb_address_unique.sql' ) );
1974         }
1975
1976         global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
1977         # Add missing extension tables
1978         foreach ( $wgExtNewTables as $nt ) {
1979                 if ( $wgDatabase->tableExists( $nt[0] ) ) {
1980                         wfOut( "... table \"$nt[0]\" already exists\n" );
1981                         continue;
1982                 }
1983                 wfOut( "Creating table \"$nt[0]\"\n" );
1984                 $wgDatabase->sourceFile( $nt[1] );
1985         }
1986         # Add missing extension fields
1987         foreach ( $wgExtPGNewFields as $nc ) {
1988                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1989                 if ( !is_null( $fi ) ) {
1990                         wfOut( "... column \"$nc[0].$nc[1]\" already exists\n" );
1991                         continue;
1992                 }
1993                 wfOut( "Adding column \"$nc[0].$nc[1]\"\n" );
1994                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1995         }
1996         # Change altered columns
1997         foreach ( $wgExtPGAlteredFields as $nc ) {
1998                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1999                 if ( is_null( $fi ) ) {
2000                         wfOut( "WARNING! Column \"$nc[0].$nc[1]\" does not exist but had an alter request! Please report this.\n" );
2001                         continue;
2002                 }
2003                 $oldtype = $fi->type();
2004                 $newtype = strtolower( $nc[2] );
2005                 if ( $oldtype === $newtype ) {
2006                         wfOut( "... column \"$nc[0].$nc[1]\" has correct type of \"$newtype\"\n" );
2007                         continue;
2008                 }
2009                 $command = "ALTER TABLE $nc[0] ALTER $nc[1] TYPE $nc[2]";
2010                 if ( isset( $nc[3] ) ) {
2011                         $command .= " USING $nc[3]";
2012                 }
2013                 wfOut( "Altering column \"$nc[0].$nc[1]\" from type \"$oldtype\" to \"$newtype\"\n" );
2014                 $wgDatabase->query( $command );
2015         }
2016         # Add missing extension indexes
2017         foreach ( $wgExtNewIndexes as $ni ) {
2018                 if ( pg_index_exists( $ni[0], $ni[1] ) ) {
2019                         wfOut( "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n" );
2020                         continue;
2021                 }
2022                 wfOut( "Creating index \"$ni[1]\" on table \"$ni[0]\"\n" );
2023                 if ( preg_match( '/^\(/', $ni[2] ) ) {
2024                         $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
2025                 }
2026                 else {
2027                         $wgDatabase->sourceFile( $ni[2] );
2028                 }
2029         }
2030
2031         foreach ( $deferredcols AS $dc ) {
2032                 $fi = $wgDatabase->fieldInfo( $dc[0], $dc[1] );
2033                 if ( is_null( $fi ) ) {
2034                         wfOut( "WARNING! Column \"$dc[0].$dc[1]\" does not exist but it should! Please report this.\n" );
2035                         continue;
2036                 }
2037                 if ( $fi->is_deferred() && $fi->is_deferrable() ) {
2038                         continue;
2039                 }
2040                 wfOut( "Altering column \"$dc[0].$dc[1]\" to be DEFERRABLE INITTALLY DEFERRED\n" );
2041                 $conname = $fi->conname();
2042                 $clause = $dc[2];
2043                 $command = "ALTER TABLE $dc[0] DROP CONSTRAINT $conname";
2044                 $wgDatabase->query( $command );
2045                 $command = "ALTER TABLE $dc[0] ADD CONSTRAINT $conname FOREIGN KEY ($dc[1]) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
2046                 $wgDatabase->query( $command );
2047         }
2048
2049         # Tweak the page_title tsearch2 trigger to filter out slashes
2050         # This is create or replace, so harmless to call if not needed
2051         $wgDatabase->sourceFile( archive( 'patch-ts2pagetitle.sql' ) );
2052
2053         # # If the server is 8.3 or higher, rewrite the tsearch2 triggers
2054         # # in case they have the old 'default' versions
2055         if ( $numver >= 8.3 )
2056                 $wgDatabase->sourceFile( archive( 'patch-tsearch2funcs.sql' ) );
2057         return;
2058 }