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