maintenance/updaters.inc

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup Maintenance
   5  */
   6
   7 if ( !defined( 'MEDIAWIKI' ) ) {
   8         echo "This file is not a valid entry point\n";
   9         exit( 1 );
  10 }
  11
  12 require_once 'convertLinks.inc';
  13 require_once 'userDupes.inc';
  14 # Extension updates
  15 require_once( "$IP/includes/Hooks.php" );
  16
  17 /**
  18  * List of update functions to call for each DB type, in sequence. First item
  19  * is function name, rest are parameters to pass.
  20  */
  21 $wgUpdates = array(
  22         'mysql' => array(
  23                 // 1.2
  24                 // update_passwords obsolete
  25                 array( 'add_field', 'ipblocks',      'ipb_id',           'patch-ipblocks.sql' ),
  26                 array( 'add_field', 'ipblocks',      'ipb_expiry',       'patch-ipb_expiry.sql' ),
  27                 array( 'do_interwiki_update' ),
  28                 array( 'do_index_update' ),
  29                 // do_linkscc_update obsolete
  30                 array( 'add_table', 'hitcounter',                        'patch-hitcounter.sql' ),
  31                 array( 'add_field', 'recentchanges', 'rc_type',          'patch-rc_type.sql' ),
  32
  33                 // 1.3
  34                 array( 'add_field', 'user',          'user_real_name',   'patch-user-realname.sql' ),
  35                 array( 'add_table', 'querycache',                        'patch-querycache.sql' ),
  36                 array( 'add_table', 'objectcache',                       'patch-objectcache.sql' ),
  37                 array( 'add_table', 'categorylinks',                     'patch-categorylinks.sql' ),
  38                 // do_linkscc_1_3_update obsolete
  39                 array( 'do_old_links_update' ),
  40                 array( 'fix_ancient_imagelinks' ),
  41                 array( 'add_field', 'recentchanges', 'rc_ip',            'patch-rc_ip.sql' ),
  42
  43                 // 1.4
  44                 array( 'do_image_name_unique_update' ),
  45                 array( 'add_field', 'recentchanges', 'rc_id',            'patch-rc_id.sql' ),
  46                 array( 'add_field', 'recentchanges', 'rc_patrolled',     'patch-rc-patrol.sql' ),
  47                 array( 'add_table', 'logging',                           'patch-logging.sql' ),
  48                 // do_user_rights_update obsolete
  49                 array( 'add_field', 'user',          'user_token',       'patch-user_token.sql' ),
  50                 // old, old_articleid, patch-remove-old-title-namespace.sql obsolete
  51                 // user_groups, patch-userlevels.sql obsolete
  52                 // do_group_update() obsolete
  53                 array( 'do_watchlist_update' ),
  54                 array( 'do_user_update' ),
  55                 // do_copy_newtalk_to_watchlist obsolete
  56
  57                 // 1.5
  58                 array( 'do_schema_restructuring' ),
  59                 array( 'add_field', 'logging',       'log_params',       'patch-log_params.sql' ),
  60                 array( 'check_bin', 'logging',       'log_title',        'patch-logging-title.sql', ),
  61                 array( 'add_field', 'archive',       'ar_rev_id',        'patch-archive-rev_id.sql' ),
  62                 array( 'add_field', 'page',          'page_len',         'patch-page_len.sql' ),
  63                 array( 'do_inverse_timestamp' ),
  64                 array( 'do_text_id' ),
  65                 array( 'add_field', 'revision',      'rev_deleted',      'patch-rev_deleted.sql' ),
  66                 array( 'add_field', 'image',         'img_width',        'patch-img_width.sql' ),
  67                 array( 'add_field', 'image',         'img_metadata',     'patch-img_metadata.sql' ),
  68                 array( 'add_field', 'user',          'user_email_token', 'patch-user_email_token.sql' ),
  69                 array( 'add_field', 'archive',       'ar_text_id',       'patch-archive-text_id.sql' ),
  70                 array( 'do_namespace_size' ),
  71                 array( 'add_field', 'image',         'img_media_type',   'patch-img_media_type.sql' ),
  72                 array( 'do_pagelinks_update' ),
  73                 array( 'do_drop_img_type' ),
  74                 array( 'do_user_unique_update' ),
  75                 array( 'do_user_groups_update' ),
  76                 array( 'add_field', 'site_stats',    'ss_total_pages',   'patch-ss_total_articles.sql' ),
  77                 array( 'add_table', 'user_newtalk',                      'patch-usernewtalk2.sql' ),
  78                 array( 'add_table', 'transcache',                        'patch-transcache.sql' ),
  79                 array( 'add_field', 'interwiki',     'iw_trans',         'patch-interwiki-trans.sql' ),
  80                 array( 'add_table', 'trackbacks',                        'patch-trackbacks.sql' ),
  81
  82                 // 1.6
  83                 array( 'do_watchlist_null' ),
  84                 // do_image_index_update obsolete
  85                 array( 'do_logging_timestamp_index' ),
  86                 array( 'add_field', 'ipblocks',        'ipb_range_start',  'patch-ipb_range_start.sql' ),
  87                 array( 'do_page_random_update' ),
  88                 array( 'add_field', 'user',            'user_registration', 'patch-user_registration.sql' ),
  89                 array( 'do_templatelinks_update' ),
  90                 array( 'add_table', 'externallinks',                       'patch-externallinks.sql' ),
  91                 array( 'add_table', 'job',                                 'patch-job.sql' ),
  92                 array( 'add_field', 'site_stats',      'ss_images',        'patch-ss_images.sql' ),
  93                 array( 'add_table', 'langlinks',                           'patch-langlinks.sql' ),
  94                 array( 'add_table', 'querycache_info',                     'patch-querycacheinfo.sql' ),
  95                 array( 'add_table', 'filearchive',                         'patch-filearchive.sql' ),
  96                 array( 'add_field', 'ipblocks',        'ipb_anon_only',    'patch-ipb_anon_only.sql' ),
  97                 array( 'do_rc_indices_update' ),
  98
  99                 // 1.9
 100                 array( 'add_field', 'user',          'user_newpass_time', 'patch-user_newpass_time.sql' ),
 101                 array( 'add_table', 'redirect',                           'patch-redirect.sql' ),
 102                 array( 'add_table', 'querycachetwo',                      'patch-querycachetwo.sql' ),
 103                 array( 'add_field', 'ipblocks',      'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ),
 104                 array( 'do_backlinking_indices_update' ),
 105                 array( 'add_field', 'recentchanges', 'rc_old_len',        'patch-rc_len.sql' ),
 106                 array( 'add_field', 'user',          'user_editcount',    'patch-user_editcount.sql' ),
 107
 108                 // 1.10
 109                 array( 'do_restrictions_update' ),
 110                 array( 'add_field', 'logging',       'log_id',           'patch-log_id.sql' ),
 111                 array( 'add_field', 'revision',      'rev_parent_id',    'patch-rev_parent_id.sql' ),
 112                 array( 'add_field', 'page_restrictions', 'pr_id',        'patch-page_restrictions_sortkey.sql' ),
 113                 array( 'add_field', 'revision',      'rev_len',          'patch-rev_len.sql' ),
 114                 array( 'add_field', 'recentchanges', 'rc_deleted',       'patch-rc_deleted.sql' ),
 115                 array( 'add_field', 'logging',       'log_deleted',      'patch-log_deleted.sql' ),
 116                 array( 'add_field', 'archive',       'ar_deleted',       'patch-ar_deleted.sql' ),
 117                 array( 'add_field', 'ipblocks',      'ipb_deleted',      'patch-ipb_deleted.sql' ),
 118                 array( 'add_field', 'filearchive',   'fa_deleted',       'patch-fa_deleted.sql' ),
 119                 array( 'add_field', 'archive',       'ar_len',           'patch-ar_len.sql' ),
 120
 121                 // 1.11
 122                 array( 'add_field', 'ipblocks',      'ipb_block_email',  'patch-ipb_emailban.sql' ),
 123                 array( 'do_categorylinks_indices_update' ),
 124                 array( 'add_field', 'oldimage',      'oi_metadata',      'patch-oi_metadata.sql' ),
 125                 array( 'do_archive_user_index' ),
 126                 array( 'do_image_user_index' ),
 127                 array( 'do_oldimage_user_index' ),
 128                 array( 'add_field', 'archive',       'ar_page_id',       'patch-archive-page_id.sql' ),
 129                 array( 'add_field', 'image',         'img_sha1',         'patch-img_sha1.sql' ),
 130
 131                 // 1.12
 132                 array( 'add_table', 'protected_titles',                  'patch-protected_titles.sql' ),
 133
 134                 // 1.13
 135                 array( 'add_field', 'ipblocks',      'ipb_by_text',      'patch-ipb_by_text.sql' ),
 136                 array( 'add_table', 'page_props',                        'patch-page_props.sql' ),
 137                 array( 'add_table', 'updatelog',                         'patch-updatelog.sql' ),
 138                 array( 'add_table', 'category',                          'patch-category.sql' ),
 139                 array( 'do_category_population' ),
 140                 array( 'add_field', 'archive',       'ar_parent_id',     'patch-ar_parent_id.sql' ),
 141                 array( 'add_field', 'user_newtalk',  'user_last_timestamp', 'patch-user_last_timestamp.sql' ),
 142                 array( 'do_populate_parent_id' ),
 143                 array( 'check_bin', 'protected_titles', 'pt_title',      'patch-pt_title-encoding.sql', ),
 144                 array( 'maybe_do_profiling_memory_update' ),
 145                 array( 'do_filearchive_indices_update' ),
 146
 147                 // 1.14
 148                 array( 'add_field', 'site_stats',    'ss_active_users',  'patch-ss_active_users.sql' ),
 149                 array( 'do_active_users_init' ),
 150                 array( 'add_field', 'ipblocks',      'ipb_allow_usertalk', 'patch-ipb_allow_usertalk.sql' ),
 151
 152                 // 1.15
 153                 array( 'do_unique_pl_tl_il' ),
 154                 array( 'add_table', 'change_tag',                        'patch-change_tag.sql' ),
 155                 array( 'add_table', 'tag_summary',                       'patch-change_tag.sql' ),
 156                 array( 'add_table', 'valid_tag',                         'patch-change_tag.sql' ),
 157
 158                 // 1.16
 159                 array( 'add_table', 'user_properties',                   'patch-user_properties.sql' ),
 160                 array( 'add_table', 'log_search',                        'patch-log_search.sql' ),
 161                 array( 'do_log_search_population' ),
 162                 array( 'add_field', 'logging',       'log_user_text',    'patch-log_user_text.sql' ),
 163                 array( 'add_table', 'l10n_cache',                        'patch-l10n_cache.sql' ),
 164                 array( 'add_table', 'external_user',                     'patch-external_user.sql' ),
 165                 array( 'add_index', 'log_search',    'ls_field_val',     'patch-log_search-rename-index.sql' ),
 166                 array( 'add_index', 'change_tag',    'change_tag_rc_tag', 'patch-change_tag-indexes.sql' ),
 167                 array( 'add_field', 'redirect',      'rd_interwiki',     'patch-rd_interwiki.sql' ),
 168                 array( 'do_update_transcache_field' ),
 169                 // A field changed name mid-release cycle, so fix it for anyone using
 170                 // trunk
 171                 array( 'rename_eu_wiki_id' ),
 172                 array( 'do_update_mime_minor_field' ),
 173                 // Should've done this back in 1.10, but better late than never:
 174                 array( 'do_populate_rev_len' ),
 175
 176                 // 1.17
 177                 array( 'add_table', 'iwlinks',                           'patch-iwlinks.sql' ),
 178                 array( 'add_index', 'iwlinks', 'iwl_prefix_from_title',  'patch-rename-iwl_prefix.sql' ),
 179                 array( 'add_field', 'updatelog', 'ul_value',              'patch-ul_value.sql' ),
 180         ),
 181
 182         'sqlite' => array(
 183                 // 1.14
 184                 array( 'add_field', 'site_stats',    'ss_active_users',  'patch-ss_active_users.sql' ),
 185                 array( 'do_active_users_init' ),
 186                 array( 'add_field', 'ipblocks',      'ipb_allow_usertalk', 'patch-ipb_allow_usertalk.sql' ),
 187                 array( 'sqlite_initial_indexes' ),
 188
 189                 // 1.15
 190                 array( 'add_table', 'change_tag',                        'patch-change_tag.sql' ),
 191                 array( 'add_table', 'tag_summary',                       'patch-change_tag.sql' ),
 192                 array( 'add_table', 'valid_tag',                         'patch-change_tag.sql' ),
 193
 194                 // 1.16
 195                 array( 'add_table', 'user_properties',                   'patch-user_properties.sql' ),
 196                 array( 'add_table', 'log_search',                        'patch-log_search.sql' ),
 197                 array( 'do_log_search_population' ),
 198                 array( 'add_field', 'logging',       'log_user_text',    'patch-log_user_text.sql' ),
 199                 array( 'add_table', 'l10n_cache',                        'patch-l10n_cache.sql' ),
 200                 array( 'add_table', 'external_user',                     'patch-external_user.sql' ),
 201                 array( 'add_index', 'log_search',    'ls_field_val',     'patch-log_search-rename-index.sql' ),
 202                 array( 'add_index', 'change_tag',    'change_tag_rc_tag', 'patch-change_tag-indexes.sql' ),
 203                 array( 'add_field', 'redirect',      'rd_interwiki',     'patch-rd_interwiki.sql' ),
 204                 array( 'do_update_transcache_field' ),
 205                 // version-independent searchindex setup, added in 1.16
 206                 array( 'sqlite_setup_searchindex' ),
 207
 208                 // 1.17
 209                 array( 'add_table', 'iwlinks',                            'patch-iwlinks.sql' ),
 210                 array( 'add_index', 'iwlinks',   'iwl_prefix_from_title', 'patch-rename-iwl_prefix.sql' ),
 211                 array( 'add_field', 'updatelog', 'ul_value',              'patch-ul_value.sql' ),
 212         ),
 213 );
 214
 215
 216 # For extensions only, should be populated via hooks
 217 # $wgDBtype should be checked to specifiy the proper file
 218 $wgExtNewTables = array(); // table, dir
 219 $wgExtNewFields = array(); // table, column, dir
 220 $wgExtPGNewFields = array(); // table, column, column attributes; for PostgreSQL
 221 $wgExtPGAlteredFields = array(); // table, column, new type, conversion method; for PostgreSQL
 222 $wgExtNewIndexes = array(); // table, index, dir
 223 $wgExtModifiedFields = array(); // table, index, dir
 224
 225 # Helper function: check if the given key is present in the updatelog table.
 226 # Obviously, only use this for updates that occur after the updatelog table was
 227 # created!
 228 function update_row_exists( $key ) {
 229         $dbr = wfGetDB( DB_SLAVE );
 230         $row = $dbr->selectRow(
 231                 'updatelog',
 232                 '1',
 233                 array( 'ul_key' => $key ),
 234                 __FUNCTION__
 235         );
 236         return (bool)$row;
 237 }
 238
 239 function rename_table( $from, $to, $patch ) {
 240         global $wgDatabase;
 241         if ( $wgDatabase->tableExists( $from ) ) {
 242                 if ( $wgDatabase->tableExists( $to ) ) {
 243                         wfOut( "...can't move table $from to $to, $to already exists.\n" );
 244                 } else {
 245                         wfOut( "Moving table $from to $to..." );
 246                         $wgDatabase->sourceFile( archive( $patch ) );
 247                         wfOut( "ok\n" );
 248                 }
 249         } else {
 250                 // Source table does not exist
 251                 // Renames are done before creations, so this is typical for a new installation
 252                 // Ignore silently
 253         }
 254 }
 255
 256 function add_table( $name, $patch, $fullpath = false ) {
 257         global $wgDatabase;
 258         if ( $wgDatabase->tableExists( $name ) ) {
 259                 wfOut( "...$name table already exists.\n" );
 260         } else {
 261                 wfOut( "Creating $name table..." );
 262                 if ( $fullpath ) {
 263                         $wgDatabase->sourceFile( $patch );
 264                 } else {
 265                         $wgDatabase->sourceFile( archive( $patch ) );
 266                 }
 267                 wfOut( "ok\n" );
 268         }
 269 }
 270
 271 function modify_field( $table, $field, $patch, $fullpath = false ) {
 272         global $wgDatabase;
 273         if ( !$wgDatabase->tableExists( $table ) ) {
 274                 wfOut( "...$table table does not exist, skipping modify field patch\n" );
 275         } elseif ( ! $wgDatabase->fieldExists( $table, $field ) ) {
 276                 wfOut( "...$field field does not exist in $table table, skipping modify field patch\n" );
 277         } else {
 278                 wfOut( "Modifying $field field of table $table..." );
 279                 if ( $fullpath ) {
 280                         $wgDatabase->sourceFile( $patch );
 281                 } else {
 282                         $wgDatabase->sourceFile( archive( $patch ) );
 283                 }
 284                 wfOut( "ok\n" );
 285         }
 286 }
 287
 288 function add_field( $table, $field, $patch, $fullpath = false ) {
 289         global $wgDatabase;
 290         if ( !$wgDatabase->tableExists( $table ) ) {
 291                 wfOut( "...$table table does not exist, skipping new field patch\n" );
 292         } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
 293                 wfOut( "...have $field field in $table table.\n" );
 294         } else {
 295                 wfOut( "Adding $field field to table $table..." );
 296                 if ( $fullpath ) {
 297                         $wgDatabase->sourceFile( $patch );
 298                 } else {
 299                         $wgDatabase->sourceFile( archive( $patch ) );
 300                 }
 301                 wfOut( "ok\n" );
 302         }
 303 }
 304
 305 function add_index( $table, $index, $patch, $fullpath = false ) {
 306         global $wgDatabase;
 307         if ( $wgDatabase->indexExists( $table, $index ) ) {
 308                 wfOut( "...$index key already set on $table table.\n" );
 309         } else {
 310                 wfOut( "Adding $index key to table $table... " );
 311                 if ( $fullpath ) {
 312                         $wgDatabase->sourceFile( $patch );
 313                 } else {
 314                         $wgDatabase->sourceFile( archive( $patch ) );
 315                 }
 316                 wfOut( "ok\n" );
 317         }
 318 }
 319
 320 function drop_index_if_exists( $table, $index, $patch, $fullpath = false ) {
 321         global $wgDatabase;
 322         if ( $wgDatabase->indexExists( $table, $index ) ) {
 323                 wfOut( "Dropping $index from table $table... " );
 324                 if ( $fullpath ) {
 325                         $wgDatabase->sourceFile( $patch );
 326                 } else {
 327                         $wgDatabase->sourceFile( archive( $patch ) );
 328                 }
 329                 wfOut( "ok\n" );
 330         } else {
 331                 wfOut( "...$index doesn't exist.\n" );
 332         }
 333 }
 334
 335 function do_interwiki_update() {
 336         # Check that interwiki table exists; if it doesn't source it
 337         global $wgDatabase, $IP;
 338         if ( $wgDatabase->tableExists( "interwiki" ) ) {
 339                 wfOut( "...already have interwiki table\n" );
 340                 return true;
 341         }
 342         wfOut( "Creating interwiki table: " );
 343         $wgDatabase->sourceFile( archive( "patch-interwiki.sql" ) );
 344         wfOut( "ok\n" );
 345         wfOut( "Adding default interwiki definitions: " );
 346         $wgDatabase->sourceFile( "$IP/maintenance/interwiki.sql" );
 347         wfOut( "ok\n" );
 348 }
 349
 350 function do_index_update() {
 351         # Check that proper indexes are in place
 352         global $wgDatabase;
 353         $meta = $wgDatabase->fieldInfo( "recentchanges", "rc_timestamp" );
 354         if ( !$meta->isMultipleKey() ) {
 355                 wfOut( "Updating indexes to 20031107: " );
 356                 $wgDatabase->sourceFile( archive( "patch-indexes.sql" ) );
 357                 wfOut( "ok\n" );
 358                 return true;
 359         }
 360         wfOut( "...indexes seem up to 20031107 standards\n" );
 361         return false;
 362 }
 363
 364 function do_image_index_update() {
 365         global $wgDatabase;
 366
 367         $meta = $wgDatabase->fieldInfo( "image", "img_major_mime" );
 368         if ( !$meta->isMultipleKey() ) {
 369                 wfOut( "Updating indexes to 20050912: " );
 370                 $wgDatabase->sourceFile( archive( "patch-mimesearch-indexes.sql" ) );
 371                 wfOut( "ok\n" );
 372                 return true;
 373         }
 374         wfOut( "...indexes seem up to 20050912 standards\n" );
 375         return false;
 376 }
 377
 378 function do_image_name_unique_update() {
 379         global $wgDatabase;
 380         if ( $wgDatabase->indexExists( 'image', 'PRIMARY' ) ) {
 381                 wfOut( "...image primary key already set.\n" );
 382         } else {
 383                 wfOut( "Making img_name the primary key... " );
 384                 $wgDatabase->sourceFile( archive( "patch-image_name_primary.sql" ) );
 385                 wfOut( "ok\n" );
 386         }
 387 }
 388
 389 function do_logging_timestamp_index() {
 390         global $wgDatabase;
 391         if ( $wgDatabase->indexExists( 'logging', 'times' ) ) {
 392                 wfOut( "...timestamp key on logging already exists.\n" );
 393         } else {
 394                 wfOut( "Adding timestamp key on logging table... " );
 395                 $wgDatabase->sourceFile( archive( "patch-logging-times-index.sql" ) );
 396                 wfOut( "ok\n" );
 397         }
 398 }
 399
 400 function do_archive_user_index() {
 401         global $wgDatabase;
 402         if ( $wgDatabase->indexExists( 'archive', 'usertext_timestamp' ) ) {
 403                 wfOut( "...usertext,timestamp key on archive already exists.\n" );
 404         } else {
 405                 wfOut( "Adding usertext,timestamp key on archive table... " );
 406                 $wgDatabase->sourceFile( archive( "patch-archive-user-index.sql" ) );
 407                 wfOut( "ok\n" );
 408         }
 409 }
 410
 411 function do_image_user_index() {
 412         global $wgDatabase;
 413         if ( $wgDatabase->indexExists( 'image', 'img_usertext_timestamp' ) ) {
 414                 wfOut( "...usertext,timestamp key on image already exists.\n" );
 415         } else {
 416                 wfOut( "Adding usertext,timestamp key on image table... " );
 417                 $wgDatabase->sourceFile( archive( "patch-image-user-index.sql" ) );
 418                 wfOut( "ok\n" );
 419         }
 420 }
 421
 422 function do_oldimage_user_index() {
 423         global $wgDatabase;
 424         if ( $wgDatabase->indexExists( 'oldimage', 'oi_usertext_timestamp' ) ) {
 425                 wfOut( "...usertext,timestamp key on oldimage already exists.\n" );
 426         } else {
 427                 wfOut( "Adding usertext,timestamp key on oldimage table... " );
 428                 $wgDatabase->sourceFile( archive( "patch-oldimage-user-index.sql" ) );
 429                 wfOut( "ok\n" );
 430         }
 431 }
 432
 433 function do_watchlist_update() {
 434         global $wgDatabase;
 435         $fname = 'do_watchlist_update';
 436         if ( $wgDatabase->fieldExists( 'watchlist', 'wl_notificationtimestamp' ) ) {
 437                 wfOut( "...the watchlist table is already set up for email notification.\n" );
 438         } else {
 439                 wfOut( "Adding wl_notificationtimestamp field for email notification management." );
 440                 /* ALTER TABLE watchlist ADD (wl_notificationtimestamp varchar(14) binary NOT NULL default '0'); */
 441                 $wgDatabase->sourceFile( archive( 'patch-email-notification.sql' ) );
 442                 wfOut( "ok\n" );
 443         }
 444         # Check if we need to add talk page rows to the watchlist
 445         $talk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', $fname );
 446         $nontalk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', $fname );
 447         if ( $talk != $nontalk ) {
 448                 wfOut( "Adding missing watchlist talk page rows... " );
 449                 flush();
 450
 451                 $wgDatabase->insertSelect( 'watchlist', 'watchlist',
 452                         array(
 453                                 'wl_user' => 'wl_user',
 454                                 'wl_namespace' => 'wl_namespace | 1',
 455                                 'wl_title' => 'wl_title',
 456                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 457                         ), array( 'NOT (wl_namespace & 1)' ), $fname, 'IGNORE' );
 458                 wfOut( "ok\n" );
 459         } else {
 460                 wfOut( "...watchlist talk page rows already present\n" );
 461         }
 462 }
 463
 464 function do_copy_newtalk_to_watchlist() {
 465         global $wgDatabase;
 466         global $wgCommandLineMode; # this needs to be saved while getID() and getName() are called
 467
 468         $res = $wgDatabase->safeQuery( 'SELECT user_id, user_ip FROM !',
 469                 $wgDatabase->tableName( 'user_newtalk' ) );
 470         $num_newtalks = $wgDatabase->numRows( $res );
 471         wfOut( "Now converting $num_newtalks user_newtalk entries to watchlist table entries ... \n" );
 472
 473         $user = new User();
 474         for ( $i = 1; $i <= $num_newtalks; $i++ ) {
 475                 $wluser = $wgDatabase->fetchObject( $res );
 476                 if ( $wluser->user_id == 0 ) { # anonymous users ... have IP numbers as "names"
 477                         if ( $user->isIP( $wluser->user_ip ) ) { # do only if it really looks like an IP number (double checked)
 478                                 $wgDatabase->replace( 'watchlist',
 479                                         array( array( 'wl_user', 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ) ),
 480                                         array( 'wl_user' => 0,
 481                                                 'wl_namespace' => NS_USER_TALK,
 482                                                 'wl_title' => $wluser->user_ip,
 483                                                 'wl_notificationtimestamp' => '19700101000000'
 484                                                 ), 'updaters.inc::do_watchlist_update2'
 485                                         );
 486                         }
 487                 } else { # normal users ... have user_ids
 488                         $user->setID( $wluser->user_id );
 489                         $wgDatabase->replace( 'watchlist',
 490                                 array( array( 'wl_user', 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ) ),
 491                                 array( 'wl_user' => $user->getID(),
 492                                         'wl_namespace' => NS_USER_TALK,
 493                                         'wl_title' => $user->getName(),
 494                                         'wl_notificationtimestamp' => '19700101000000'
 495                                         ), 'updaters.inc::do_watchlist_update3'
 496                                 );
 497                 }
 498         }
 499         wfOut( "Done.\n" );
 500 }
 501
 502 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( "...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         wfOut( "Deleting old default messages (this may take a long time!)..." );
1180         if ( !defined( 'MW_NO_SETUP' ) ) {
1181                 define( 'MW_NO_SETUP', true );
1182         }
1183         require_once 'deleteDefaultMessages.php';
1184         DeleteDefaultMessages::reallyExecute();
1185         wfOut( "Done\n" );
1186
1187         do_stats_init();
1188
1189         if ( $purge ) {
1190                 purge_cache();
1191         }
1192 }
1193
1194 function archive( $name ) {
1195         global $wgDBtype, $IP;
1196         if ( file_exists( "$IP/maintenance/$wgDBtype/archives/$name" ) ) {
1197                 return "$IP/maintenance/$wgDBtype/archives/$name";
1198         } else {
1199                 return "$IP/maintenance/archives/$name";
1200         }
1201 }
1202
1203 function do_restrictions_update() {
1204         # Adding page_restrictions table, obsoleting page.page_restrictions.
1205         #  Migrating old restrictions to new table
1206         # -- Andrew Garrett, January 2007.
1207
1208         global $wgDatabase;
1209
1210         $name = 'page_restrictions';
1211         $patch = 'patch-page_restrictions.sql';
1212         $patch2 = 'patch-page_restrictions_sortkey.sql';
1213
1214         if ( $wgDatabase->tableExists( $name ) ) {
1215                 wfOut( "...$name table already exists.\n" );
1216         } else {
1217                 wfOut( "Creating $name table..." );
1218                 $wgDatabase->sourceFile( archive( $patch ) );
1219                 $wgDatabase->sourceFile( archive( $patch2 ) );
1220                 wfOut( "ok\n" );
1221
1222                 wfOut( "Migrating old restrictions to new table..." );
1223
1224                 $res = $wgDatabase->select( 'page', array( 'page_id', 'page_restrictions' ), array( "page_restrictions!=''", "page_restrictions!='edit=:move='" ), __METHOD__ );
1225
1226                 $count = 0;
1227
1228                 while ( $row = $wgDatabase->fetchObject( $res ) ) {
1229                         $count = ( $count + 1 ) % 100;
1230
1231                         if ( $count == 0 ) {
1232                                 if ( function_exists( 'wfWaitForSlaves' ) ) {
1233                                         wfWaitForSlaves( 10 );
1234                                 } else {
1235                                         sleep( 1 );
1236                                 }
1237                         }
1238
1239                         # Figure out what the restrictions are..
1240                         $id = $row->page_id;
1241                         $flatrestrictions = explode( ':', $row->page_restrictions );
1242
1243                         $restrictions = array ();
1244                         foreach ( $flatrestrictions as $restriction ) {
1245                                 $thisrestriction = explode( '=', $restriction, 2 );
1246                                 if ( count( $thisrestriction ) == 1 ) {
1247                                         // Compatibility with old protections from before
1248                                         // separate move protection was added.
1249                                         list( $level ) = $thisrestriction;
1250                                         if ( $level ) {
1251                                                 $restrictions['edit'] = $level;
1252                                                 $restrictions['move'] = $level;
1253                                         }
1254                                 } else {
1255                                         list( $type, $level ) = $thisrestriction;
1256                                         if ( $level ) {
1257                                                 $restrictions[$type] = $level;
1258                                         }
1259                                 }
1260
1261                         $wgDatabase->update( 'page', array ( 'page_restrictions' => '' ), array( 'page_id' => $id ), __METHOD__ );
1262
1263                         }
1264
1265                         foreach ( $restrictions as $type => $level ) {
1266                                 $wgDatabase->insert( 'page_restrictions', array ( 'pr_page' => $id,
1267                                                                                         'pr_type' => $type,
1268                                                                                         'pr_level' => $level,
1269                                                                                         'pr_cascade' => 0,
1270                                                                                         'pr_expiry' => 'infinity' ),
1271                                                                                         __METHOD__ );
1272                         }
1273                 }
1274                 wfOut( "ok\n" );
1275         }
1276 }
1277
1278 function do_category_population() {
1279         if ( update_row_exists( 'populate category' ) ) {
1280                 wfOut( "...category table already populated.\n" );
1281                 return;
1282         }
1283         require_once( 'populateCategory.php' );
1284         wfOut(
1285                 "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         );
1290         $task = new PopulateCategory();
1291         $task->execute();
1292         wfOut( "Done populating category table.\n" );
1293 }
1294
1295 function do_populate_parent_id() {
1296         if ( update_row_exists( 'populate rev_parent_id' ) ) {
1297                 wfOut( "...rev_parent_id column already populated.\n" );
1298                 return;
1299         }
1300         require_once( 'populateParentId.php' );
1301         $task = new PopulateParentId();
1302         $task->execute();
1303 }
1304
1305 function do_populate_rev_len() {
1306         if ( update_row_exists( 'populate rev_len' ) ) {
1307                 wfOut( "...rev_len column already populated.\n" );
1308                 return;
1309         }
1310         require_once( 'populateRevisionLength.php' );
1311         $task = new PopulateRevisionLength();
1312         $task->execute();
1313 }
1314
1315 function sqlite_initial_indexes() {
1316         global $wgDatabase;
1317         // initial-indexes.sql fails if the indexes are already present, so we perform a quick check if our database is newer.
1318         if ( update_row_exists( 'initial_indexes' ) || $wgDatabase->indexExists( 'user', 'user_name' ) ) {
1319                 wfOut( "...have initial indexes\n" );
1320                 return;
1321         }
1322         wfOut( "Adding initial indexes..." );
1323         $wgDatabase->sourceFile( archive( 'initial-indexes.sql' ) );
1324         wfOut( "done\n" );
1325 }
1326
1327 function sqlite_setup_searchindex() {
1328         global $wgDatabase;
1329         $module = $wgDatabase->getFulltextSearchModule();
1330         $fts3tTable = update_row_exists( 'fts3' );
1331         if ( $fts3tTable &&  !$module ) {
1332                 wfOut( '...PHP is missing FTS3 support, downgrading tables...' );
1333                 $wgDatabase->sourceFile( archive( 'searchindex-no-fts.sql' ) );
1334                 wfOut( "done\n" );
1335         } elseif ( !$fts3tTable && $module == 'FTS3' ) {
1336                 wfOut( '...adding FTS3 search capabilities...' );
1337                 $wgDatabase->sourceFile( archive( 'searchindex-fts3.sql' ) );
1338                 wfOut( "done\n" );
1339         } else {
1340                 wfOut( "...fulltext search table appears to be in order.\n" );
1341         }
1342 }
1343
1344 function do_unique_pl_tl_il() {
1345         global $wgDatabase;
1346         $info = $wgDatabase->indexInfo( 'pagelinks', 'pl_namespace' );
1347         if ( is_array( $info ) && !$info[0]->Non_unique ) {
1348                 wfOut( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
1349         } else {
1350                 wfOut( "Making pl_namespace, tl_namespace and il_to indices UNIQUE... " );
1351                 $wgDatabase->sourceFile( archive( 'patch-pl-tl-il-unique.sql' ) );
1352                 wfOut( "ok\n" );
1353         }
1354 }
1355
1356 function do_log_search_population() {
1357         global $wgDatabase;
1358         if ( update_row_exists( 'populate log_search' ) ) {
1359                 wfOut( "...log_search table already populated.\n" );
1360                 return;
1361         }
1362         require_once( 'populateLogSearch.php' );
1363         wfOut(
1364 "Populating log_search table, printing progress markers. For large\n" .
1365 "databases, you may want to hit Ctrl-C and do this manually with\n" .
1366 "maintenance/populateLogSearch.php.\n" );
1367         $task = new PopulateLogSearch();
1368         $task->execute();
1369         wfOut( "Done populating log_search table.\n" );
1370 }
1371
1372 function rename_eu_wiki_id() {
1373         global $wgDatabase;
1374         if ( $wgDatabase->fieldExists( 'external_user', 'eu_local_id' ) ) {
1375                 wfOut( "...eu_wiki_id already renamed to eu_local_id.\n" );
1376                 return;
1377         }
1378         wfOut( "Renaming eu_wiki_id -> eu_local_id... " );
1379         $wgDatabase->sourceFile( archive( 'patch-eu_local_id.sql' ) );
1380         wfOut( "ok\n" );
1381 }
1382
1383 function do_update_transcache_field() {
1384         global $wgDatabase;
1385         if ( update_row_exists( 'convert transcache field' ) ) {
1386                 wfOut( "...transcache tc_time already converted.\n" );
1387                 return;
1388         } else {
1389                 wfOut( "Converting tc_time from UNIX epoch to MediaWiki timestamp... " );
1390                 $wgDatabase->sourceFile( archive( 'patch-tc-timestamp.sql' ) );
1391                 wfOut( "ok\n" );
1392         }
1393 }
1394
1395 function do_update_mime_minor_field() {
1396         if ( update_row_exists( 'mime_minor_length' ) ) {
1397                 wfOut( "...*_mime_minor fields are already long enough.\n" );
1398         } else {
1399                 global $wgDatabase;
1400                 wfOut( "Altering all *_mime_minor fields to 100 bytes in size ... " );
1401                 $wgDatabase->sourceFile( archive( 'patch-mime_minor_length.sql' ) );
1402                 wfOut( "ok\n" );
1403         }
1404 }
1405
1406 /***********************************************************************
1407  * Start PG stuff
1408  * TODO: merge with above
1409  ***********************************************************************/
1410
1411 function pg_describe_table( $table ) {
1412         global $wgDatabase, $wgDBmwschema;
1413         $q = <<<END
1414 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
1415         WHERE pg_class.relnamespace = pg_namespace.oid
1416           AND attrelid=pg_class.oid AND attnum > 0
1417           AND relname=%s AND nspname=%s
1418 END;
1419         $res = $wgDatabase->query( sprintf( $q,
1420                         $wgDatabase->addQuotes( $table ),
1421                         $wgDatabase->addQuotes( $wgDBmwschema ) ) );
1422         if ( !$res ) {
1423                 return null;
1424         }
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         }
1454         if ( !( $r = $wgDatabase->fetchRow( $res ) ) ) {
1455                 $wgDatabase->freeResult( $res );
1456                 return null;
1457         }
1458
1459         $indkey = $r[0];
1460         $relid = intval( $r[1] );
1461         $indkeys = explode( " ", $indkey );
1462         $wgDatabase->freeResult( $res );
1463
1464         $colnames = array();
1465         foreach ( $indkeys as $rid ) {
1466                 $query = <<<END
1467 SELECT attname FROM pg_class, pg_attribute
1468         WHERE attrelid=$relid
1469           AND attnum=%d
1470           AND attrelid=pg_class.oid
1471 END;
1472                 $r2 = $wgDatabase->query( sprintf( $query, $rid ) );
1473                 if ( !$r2 ) {
1474                         return null;
1475                 }
1476                 if ( !( $row2 = $wgDatabase->fetchRow( $r2 ) ) ) {
1477                         $wgDatabase->freeResult( $r2 );
1478                         return null;
1479                 }
1480                 $colnames[] = $row2[0];
1481                 $wgDatabase->freeResult( $r2 );
1482         }
1483
1484         return $colnames;
1485 }
1486
1487 function pg_index_exists( $table, $index ) {
1488         global $wgDatabase, $wgDBmwschema;
1489         $exists = $wgDatabase->selectField( "pg_indexes", "indexname",
1490                         array(  "indexname" => $index,
1491                                 "tablename" => $table,
1492                                 "schemaname" => $wgDBmwschema ) );
1493         return $exists === $index;
1494 }
1495
1496 function pg_fkey_deltype( $fkey ) {
1497         global $wgDatabase, $wgDBmwschema;
1498         $q = <<<END
1499 SELECT confdeltype FROM pg_constraint, pg_namespace
1500         WHERE connamespace=pg_namespace.oid
1501           AND nspname=%s
1502           AND conname=%s;
1503 END;
1504         $r = $wgDatabase->query( sprintf( $q,
1505                 $wgDatabase->addQuotes( $wgDBmwschema ),
1506                 $wgDatabase->addQuotes( $fkey ) ) );
1507         if ( !( $row = $wgDatabase->fetchRow( $r ) ) ) {
1508                 return null;
1509         }
1510         return $row[0];
1511 }
1512
1513 function pg_rule_def( $table, $rule ) {
1514         global $wgDatabase, $wgDBmwschema;
1515         $q = <<<END
1516 SELECT definition FROM pg_rules
1517         WHERE schemaname = %s
1518           AND tablename = %s
1519           AND rulename = %s
1520 END;
1521         $r = $wgDatabase->query( sprintf( $q,
1522                         $wgDatabase->addQuotes( $wgDBmwschema ),
1523                         $wgDatabase->addQuotes( $table ),
1524                         $wgDatabase->addQuotes( $rule ) ) );
1525         $row = $wgDatabase->fetchRow( $r );
1526         if ( !$row ) {
1527                 return null;
1528         }
1529         $d = $row[0];
1530         $wgDatabase->freeResult( $r );
1531         return $d;
1532 }
1533
1534 function do_postgres_updates() {
1535         global $wgDatabase, $wgVersion, $wgDBmwschema, $wgDBts2schema, $wgShowExceptionDetails, $wgDBuser;
1536
1537         # # Gather version numbers in case we need them
1538         $version = $wgDatabase->getServerVersion(); # # long string
1539         $numver = $wgDatabase->numeric_version; # # X.Y e.g. 8.3
1540
1541         $wgShowExceptionDetails = 1;
1542
1543         # Just in case their LocalSettings.php does not have this:
1544         if ( !isset( $wgDBmwschema ) ) {
1545                 $wgDBmwschema = 'mediawiki';
1546         }
1547
1548         # Verify that this user is configured correctly
1549         $safeuser = $wgDatabase->addQuotes( $wgDBuser );
1550         $SQL = "SELECT array_to_string(useconfig,'*') FROM pg_catalog.pg_user WHERE usename = $safeuser";
1551         $config = pg_fetch_result( $wgDatabase->doQuery( $SQL ), 0, 0 );
1552         $conf = array();
1553         foreach ( explode( '*', $config ) as $c ) {
1554                 list( $x, $y ) = explode( '=', $c );
1555                 $conf[$x] = $y;
1556         }
1557         if ( !array_key_exists( 'search_path', $conf ) ) {
1558                 $search_path = '';
1559         } else {
1560                 $search_path = $conf['search_path'];
1561         }
1562         if ( strpos( $search_path, $wgDBmwschema ) === false ) {
1563                 wfOut( "Adding in schema \"$wgDBmwschema\" to search_path for user \"$wgDBuser\"\n" );
1564                 $search_path = "$wgDBmwschema, $search_path";
1565         }
1566         if ( strpos( $search_path, $wgDBts2schema ) === false ) {
1567                 wfOut( "Adding in schema \"$wgDBts2schema\" to search_path for user \"$wgDBuser\"\n" );
1568                 $search_path = "$search_path, $wgDBts2schema";
1569         }
1570         $search_path = str_replace( ', ,', ',', $search_path );
1571         if ( array_key_exists( 'search_path', $conf ) === false || $search_path != $conf['search_path'] ) {
1572                 $wgDatabase->doQuery( "ALTER USER $wgDBuser SET search_path = $search_path" );
1573                 $wgDatabase->doQuery( "SET search_path = $search_path" );
1574         } else {
1575                 $path = $conf['search_path'];
1576                 wfOut( "... search_path for user \"$wgDBuser\" looks correct ($path)\n" );
1577         }
1578         $goodconf = array(
1579                 'client_min_messages' => 'error',
1580                 'DateStyle'           => 'ISO, YMD',
1581                 'TimeZone'            => 'GMT'
1582         );
1583         foreach ( array_keys( $goodconf ) AS $key ) {
1584                 $value = $goodconf[$key];
1585                 if ( !array_key_exists( $key, $conf ) or $conf[$key] !== $value ) {
1586                         wfOut( "Setting $key to '$value' for user \"$wgDBuser\"\n" );
1587                         $wgDatabase->doQuery( "ALTER USER $wgDBuser SET $key = '$value'" );
1588                         $wgDatabase->doQuery( "SET $key = '$value'" );
1589                 } else {
1590                         wfOut( "... default value of \"$key\" is correctly set to \"$value\" for user \"$wgDBuser\"\n" );
1591                 }
1592         }
1593
1594         $newsequences = array(
1595                 "logging_log_id_seq",
1596                 "page_restrictions_pr_id_seq",
1597         );
1598
1599         $newtables = array(
1600                 array( "category",          "patch-category.sql" ),
1601                 array( "mwuser",            "patch-mwuser.sql" ),
1602                 array( "pagecontent",       "patch-pagecontent.sql" ),
1603                 array( "querycachetwo",     "patch-querycachetwo.sql" ),
1604                 array( "page_props",        "patch-page_props.sql" ),
1605                 array( "page_restrictions", "patch-page_restrictions.sql" ),
1606                 array( "profiling",         "patch-profiling.sql" ),
1607                 array( "protected_titles",  "patch-protected_titles.sql" ),
1608                 array( "redirect",          "patch-redirect.sql" ),
1609                 array( "updatelog",         "patch-updatelog.sql" ),
1610                 array( 'change_tag',        'patch-change_tag.sql' ),
1611                 array( 'tag_summary',       'patch-change_tag.sql' ),
1612                 array( 'valid_tag',         'patch-change_tag.sql' ),
1613                 array( 'user_properties',   'patch-user_properties.sql' ),
1614                 array( 'log_search',        'patch-log_search.sql' ),
1615                 array( 'l10n_cache',        'patch-l10n_cache.sql' ),
1616                 array( 'iwlinks',           'patch-iwlinks.sql' ),
1617         );
1618
1619         $newcols = array(
1620                 array( "archive",       "ar_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1621                 array( "archive",       "ar_len",               "INTEGER" ),
1622                 array( "archive",       "ar_page_id",           "INTEGER" ),
1623                 array( "archive",       "ar_parent_id",         "INTEGER" ),
1624                 array( "image",         "img_sha1",             "TEXT NOT NULL DEFAULT ''" ),
1625                 array( "ipblocks",      "ipb_allow_usertalk",   "SMALLINT NOT NULL DEFAULT 0" ),
1626                 array( "ipblocks",      "ipb_anon_only",        "SMALLINT NOT NULL DEFAULT 0" ),
1627                 array( "ipblocks",      "ipb_by_text",          "TEXT NOT NULL DEFAULT ''" ),
1628                 array( "ipblocks",      "ipb_block_email",      "SMALLINT NOT NULL DEFAULT 0" ),
1629                 array( "ipblocks",      "ipb_create_account",   "SMALLINT NOT NULL DEFAULT 1" ),
1630                 array( "ipblocks",      "ipb_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
1631                 array( "ipblocks",      "ipb_enable_autoblock", "SMALLINT NOT NULL DEFAULT 1" ),
1632                 array( "filearchive",   "fa_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1633                 array( "logging",       "log_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
1634                 array( "logging",       "log_id",               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ),
1635                 array( "logging",       "log_params",           "TEXT" ),
1636                 array( "mwuser",        "user_editcount",       "INTEGER" ),
1637                 array( "mwuser",        "user_hidden",          "SMALLINT NOT NULL DEFAULT 0" ),
1638                 array( "mwuser",        "user_newpass_time",    "TIMESTAMPTZ" ),
1639                 array( "oldimage",      "oi_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1640                 array( "oldimage",      "oi_major_mime",        "TEXT NOT NULL DEFAULT 'unknown'" ),
1641                 array( "oldimage",      "oi_media_type",        "TEXT" ),
1642                 array( "oldimage",      "oi_metadata",          "BYTEA NOT NULL DEFAULT ''" ),
1643                 array( "oldimage",      "oi_minor_mime",        "TEXT NOT NULL DEFAULT 'unknown'" ),
1644                 array( "oldimage",      "oi_sha1",              "TEXT NOT NULL DEFAULT ''" ),
1645                 array( "page_restrictions", "pr_id",            "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_val')" ),
1646                 array( "profiling",     "pf_memory",            "NUMERIC(18,10) NOT NULL DEFAULT 0" ),
1647                 array( "recentchanges", "rc_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
1648                 array( "recentchanges", "rc_log_action",        "TEXT" ),
1649                 array( "recentchanges", "rc_log_type",          "TEXT" ),
1650                 array( "recentchanges", "rc_logid",             "INTEGER NOT NULL DEFAULT 0" ),
1651                 array( "recentchanges", "rc_new_len",           "INTEGER" ),
1652                 array( "recentchanges", "rc_old_len",           "INTEGER" ),
1653                 array( "recentchanges", "rc_params",            "TEXT" ),
1654                 array( "redirect",      "rd_interwiki",         "TEXT NULL" ),
1655                 array( "redirect",      "rd_fragment",          "TEXT NULL" ),
1656                 array( "revision",      "rev_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
1657                 array( "revision",      "rev_len",              "INTEGER" ),
1658                 array( "revision",      "rev_parent_id",        "INTEGER DEFAULT NULL" ),
1659                 array( "site_stats",    "ss_active_users",      "INTEGER DEFAULT '-1'" ),
1660                 array( "user_newtalk",  "user_last_timestamp",  "TIMESTAMPTZ" ),
1661                 array( "logging",       "log_user_text",        "TEXT NOT NULL DEFAULT ''" ),
1662                 array( "logging",       "log_page",             "INTEGER" ),
1663         );
1664
1665
1666         # table, column, desired type, USING clause if needed (with new default if needed)
1667         $typechanges = array(
1668                 array( "archive",      "ar_deleted",      "smallint", "" ),
1669                 array( "archive",      "ar_minor_edit",   "smallint", "ar_minor_edit::smallint DEFAULT 0" ),
1670                 array( "filearchive",  "fa_deleted",      "smallint", "" ),
1671                 array( "filearchive",  "fa_height",       "integer",  "" ),
1672                 array( "filearchive",  "fa_metadata",     "bytea",    "decode(fa_metadata,'escape')" ),
1673                 array( "filearchive",  "fa_size",         "integer",  "" ),
1674                 array( "filearchive",  "fa_width",        "integer",  "" ),
1675                 array( "filearchive",  "fa_storage_group", "text",     "" ),
1676                 array( "filearchive",  "fa_storage_key",  "text",     "" ),
1677                 array( "image",        "img_metadata",    "bytea",    "decode(img_metadata,'escape')" ),
1678                 array( "image",        "img_size",        "integer",  "" ),
1679                 array( "image",        "img_width",       "integer",  "" ),
1680                 array( "image",        "img_height",      "integer",  "" ),
1681                 array( "interwiki",    "iw_local",        "smallint", "iw_local::smallint DEFAULT 0" ),
1682                 array( "interwiki",    "iw_trans",        "smallint", "iw_trans::smallint DEFAULT 0" ),
1683                 array( "ipblocks",     "ipb_auto",        "smallint", "ipb_auto::smallint DEFAULT 0" ),
1684                 array( "ipblocks",     "ipb_anon_only",   "smallint", "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ),
1685                 array( "ipblocks",     "ipb_create_account", "smallint", "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ),
1686                 array( "ipblocks",     "ipb_enable_autoblock", "smallint", "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ),
1687                 array( "ipblocks",     "ipb_block_email", "smallint", "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ),
1688                 array( "ipblocks",     "ipb_address",     "text",     "ipb_address::text" ),
1689                 array( "ipblocks",     "ipb_deleted",     "smallint", "ipb_deleted::smallint DEFAULT 0" ),
1690                 array( "math",         "math_inputhash",  "bytea",    "decode(math_inputhash,'escape')" ),
1691                 array( "math",         "math_outputhash", "bytea",    "decode(math_outputhash,'escape')" ),
1692                 array( "mwuser",       "user_token",      "text",     "" ),
1693                 array( "mwuser",       "user_email_token", "text",     "" ),
1694                 array( "objectcache",  "keyname",         "text",     "" ),
1695                 array( "oldimage",     "oi_height",       "integer",  "" ),
1696                 array( "oldimage",     "oi_metadata",     "bytea",    "decode(img_metadata,'escape')" ),
1697                 array( "oldimage",     "oi_size",         "integer",  "" ),
1698                 array( "oldimage",     "oi_width",        "integer",  "" ),
1699                 array( "page",         "page_is_redirect", "smallint", "page_is_redirect::smallint DEFAULT 0" ),
1700                 array( "page",         "page_is_new",     "smallint", "page_is_new::smallint DEFAULT 0" ),
1701                 array( "querycache",   "qc_value",        "integer",  "" ),
1702                 array( "querycachetwo", "qcc_value",       "integer",  "" ),
1703                 array( "recentchanges", "rc_bot",          "smallint", "rc_bot::smallint DEFAULT 0" ),
1704                 array( "recentchanges", "rc_deleted",      "smallint", "" ),
1705                 array( "recentchanges", "rc_minor",        "smallint", "rc_minor::smallint DEFAULT 0" ),
1706                 array( "recentchanges", "rc_new",          "smallint", "rc_new::smallint DEFAULT 0" ),
1707                 array( "recentchanges", "rc_type",         "smallint", "rc_type::smallint DEFAULT 0" ),
1708                 array( "recentchanges", "rc_patrolled",    "smallint", "rc_patrolled::smallint DEFAULT 0" ),
1709                 array( "revision",     "rev_deleted",     "smallint", "rev_deleted::smallint DEFAULT 0" ),
1710                 array( "revision",     "rev_minor_edit",  "smallint", "rev_minor_edit::smallint DEFAULT 0" ),
1711                 array( "templatelinks", "tl_namespace",    "smallint", "tl_namespace::smallint" ),
1712                 array( "user_newtalk", "user_ip",         "text",     "host(user_ip)" ),
1713         );
1714
1715         # table, column, nullability
1716         $nullchanges = array(
1717                 array( "oldimage", "oi_bits",       "NULL" ),
1718                 array( "oldimage", "oi_timestamp",  "NULL" ),
1719                 array( "oldimage", "oi_major_mime", "NULL" ),
1720                 array( "oldimage", "oi_minor_mime", "NULL" ),
1721         );
1722
1723         $newindexes = array(
1724                 array( "archive",       "archive_user_text",  "(ar_user_text)" ),
1725                 array( "image",         "img_sha1",           "(img_sha1)" ),
1726                 array( "oldimage",      "oi_sha1",            "(oi_sha1)" ),
1727                 array( "revision",      "rev_text_id_idx",    "(rev_text_id)" ),
1728                 array( "recentchanges", "rc_timestamp_bot",   "(rc_timestamp) WHERE rc_bot = 0" ),
1729                 array( "templatelinks", "templatelinks_from", "(tl_from)" ),
1730                 array( "watchlist",     "wl_user",            "(wl_user)" ),
1731                 array( "logging",       "logging_user_type_time", "(log_user, log_type, log_timestamp)" ),
1732                 array( "logging",       "logging_page_id_time",   "(log_page,log_timestamp)" ),
1733         );
1734
1735         $newrules = array(
1736         );
1737
1738         # # All FK columns should be deferred
1739         $deferredcols = array(
1740                 array( "archive",          "ar_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1741                 array( "categorylinks",    "cl_from",         "page(page_id) ON DELETE CASCADE" ),
1742                 array( "externallinks",    "el_from",         "page(page_id) ON DELETE CASCADE" ),
1743                 array( "filearchive",      "fa_deleted_user", "mwuser(user_id) ON DELETE SET NULL" ),
1744                 array( "filearchive",      "fa_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1745                 array( "image",            "img_user",        "mwuser(user_id) ON DELETE SET NULL" ),
1746                 array( "imagelinks",       "il_from",         "page(page_id) ON DELETE CASCADE" ),
1747                 array( "ipblocks",         "ipb_by",          "mwuser(user_id) ON DELETE CASCADE" ),
1748                 array( "ipblocks",         "ipb_user",        "mwuser(user_id) ON DELETE SET NULL" ),
1749                 array( "langlinks",        "ll_from",         "page(page_id) ON DELETE CASCADE" ),
1750                 array( "logging",          "log_user",        "mwuser(user_id) ON DELETE SET NULL" ),
1751                 array( "oldimage",         "oi_name",         "image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" ),
1752                 array( "oldimage",         "oi_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1753                 array( "pagelinks",        "pl_from",         "page(page_id) ON DELETE CASCADE" ),
1754                 array( "page_props",       "pp_page",         "page (page_id) ON DELETE CASCADE" ),
1755                 array( "page_restrictions", "pr_page",         "page(page_id) ON DELETE CASCADE" ),
1756                 array( "protected_titles", "pt_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1757                 array( "recentchanges",    "rc_cur_id",       "page(page_id) ON DELETE SET NULL" ),
1758                 array( "recentchanges",    "rc_user",         "mwuser(user_id) ON DELETE SET NULL" ),
1759                 array( "redirect",         "rd_from",         "page(page_id) ON DELETE CASCADE" ),
1760                 array( "revision",         "rev_page",        "page (page_id) ON DELETE CASCADE" ),
1761                 array( "revision",         "rev_user",        "mwuser(user_id) ON DELETE RESTRICT" ),
1762                 array( "templatelinks",    "tl_from",         "page(page_id) ON DELETE CASCADE" ),
1763                 array( "trackbacks",       "tb_page",         "page(page_id) ON DELETE CASCADE" ),
1764                 array( "user_groups",      "ug_user",         "mwuser(user_id) ON DELETE CASCADE" ),
1765                 array( "user_newtalk",     "user_id",         "mwuser(user_id) ON DELETE CASCADE" ),
1766                 array( "user_properties",  "up_user",         "mwuser(user_id) ON DELETE CASCADE" ),
1767                 array( "watchlist",        "wl_user",         "mwuser(user_id) ON DELETE CASCADE" ),
1768         );
1769
1770         # Check new sequences, rename if needed
1771         foreach ( $newsequences as $ns ) {
1772                 if ( $wgDatabase->sequenceExists( 'pr_id_val' ) ) {
1773                         wfOut( "Updating sequence names\n" );
1774                         $wgDatabase->sourceFile( archive( 'patch-update_sequences.sql' ) );
1775                         continue;
1776                 } elseif ( $wgDatabase->sequenceExists( 'page_restrictions_pr_id_seq' ) ) {
1777                         wfOut( "... sequences already updated\n" );
1778                         continue;
1779                 } else {
1780                         wfOut( "Creating sequence \"$ns\"\n" );
1781                         $wgDatabase->query( "CREATE SEQUENCE $ns" );
1782                 }
1783         }
1784
1785         foreach ( $newtables as $nt ) {
1786                 if ( $wgDatabase->tableExists( $nt[0] ) ) {
1787                         wfOut( "... table \"$nt[0]\" already exists\n" );
1788                         continue;
1789                 }
1790
1791                 wfOut( "Creating table \"$nt[0]\"\n" );
1792                 $wgDatabase->sourceFile( archive( $nt[1] ) );
1793         }
1794
1795         # # Needed before newcols
1796         if ( $wgDatabase->tableExists( "archive2" ) ) {
1797                 wfOut( "Converting \"archive2\" back to normal archive table\n" );
1798                 if ( $wgDatabase->ruleExists( "archive", "archive_insert" ) ) {
1799                         wfOut( "Dropping rule \"archive_insert\"\n" );
1800                         $wgDatabase->query( "DROP RULE archive_insert ON archive" );
1801                 }
1802                 if ( $wgDatabase->ruleExists( "archive", "archive_delete" ) ) {
1803                         wfOut( "Dropping rule \"archive_delete\"\n" );
1804                         $wgDatabase->query( "DROP RULE archive_delete ON archive" );
1805                 }
1806                 $wgDatabase->sourceFile( archive( "patch-remove-archive2.sql" ) );
1807         }
1808         else
1809                 wfOut( "... obsolete table \"archive2\" does not exist\n" );
1810
1811         foreach ( $newcols as $nc ) {
1812                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1813                 if ( !is_null( $fi ) ) {
1814                         wfOut( "... column \"$nc[0].$nc[1]\" already exists\n" );
1815                         continue;
1816                 }
1817
1818                 wfOut( "Adding column \"$nc[0].$nc[1]\"\n" );
1819                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1820         }
1821
1822         foreach ( $typechanges as $tc ) {
1823                 $fi = $wgDatabase->fieldInfo( $tc[0], $tc[1] );
1824                 if ( is_null( $fi ) ) {
1825                         wfOut( "... error: expected column $tc[0].$tc[1] to exist\n" );
1826                         exit( 1 );
1827                 }
1828
1829                 if ( $fi->type() === $tc[2] )
1830                         wfOut( "... column \"$tc[0].$tc[1]\" is already of type \"$tc[2]\"\n" );
1831                 else {
1832                         wfOut( "Changing column type of \"$tc[0].$tc[1]\" from \"{$fi->type()}\" to \"$tc[2]\"\n" );
1833                         $sql = "ALTER TABLE $tc[0] ALTER $tc[1] TYPE $tc[2]";
1834                         if ( strlen( $tc[3] ) ) {
1835                                 $default = array();
1836                                 if ( preg_match( '/DEFAULT (.+)/', $tc[3], $default ) ) {
1837                                         $sqldef = "ALTER TABLE $tc[0] ALTER $tc[1] SET DEFAULT $default[1]";
1838                                         $wgDatabase->query( $sqldef );
1839                                         $tc[3] = preg_replace( '/\s*DEFAULT .+/', '', $tc[3] );
1840                                 }
1841                                 $sql .= " USING $tc[3]";
1842                         }
1843                         $sql .= ";\nCOMMIT;\n";
1844                         $wgDatabase->query( $sql );
1845                 }
1846         }
1847
1848         foreach ( $nullchanges as $nc ) {
1849                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1850                 if ( is_null( $fi ) ) {
1851                         wfOut( "... error: expected column $nc[0].$nc[1] to exist\n" );
1852                         exit( 1 );
1853                 }
1854                 if ( $fi->nullable() ) {
1855                         # # It's NULL - does it need to be NOT NULL?
1856                         if ( 'NOT NULL' === $nc[2] ) {
1857                                 wfOut( "Changing \"$nc[0].$nc[1]\" to not allow NULLs\n" );
1858                                 $wgDatabase->query( "ALTER TABLE $nc[0] ALTER $nc[1] SET NOT NULL" );
1859                         } else {
1860                                 wfOut( "... column \"$nc[0].$nc[1]\" is already set as NULL\n" );
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         } else {
1880                 wfOut( "... column \"oldimage.oi_deleted\" is already of type \"smallint\"\n" );
1881         }
1882
1883         foreach ( $newindexes as $ni ) {
1884                 if ( pg_index_exists( $ni[0], $ni[1] ) ) {
1885                         wfOut( "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n" );
1886                         continue;
1887                 }
1888                 wfOut( "Creating index \"$ni[1]\" on table \"$ni[0]\" $ni[2]\n" );
1889                 $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
1890         }
1891
1892         foreach ( $newrules as $nr ) {
1893                 if ( $wgDatabase->ruleExists( $nr[0], $nr[1] ) ) {
1894                         wfOut( "... rule \"$nr[1]\" on table \"$nr[0]\" already exists\n" );
1895                         continue;
1896                 }
1897                 wfOut( "Adding rule \"$nr[1]\" to table \"$nr[0]\"\n" );
1898                 $wgDatabase->sourceFile( archive( $nr[2] ) );
1899         }
1900
1901         if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
1902                 wfOut( "... table \"oldimage\" has correct cascading delete/update foreign key to image\n" );
1903         } else {
1904                 if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey" ) ) {
1905                         $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
1906                 }
1907                 if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
1908                         $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
1909                 }
1910                 wfOut( "Making foreign key on table \"oldimage\" (to image) a cascade delete/update\n" );
1911                 $wgDatabase->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
1912                         "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" );
1913         }
1914
1915         if ( !$wgDatabase->triggerExists( "page", "page_deleted" ) ) {
1916                 wfOut( "Adding function and trigger \"page_deleted\" to table \"page\"\n" );
1917                 $wgDatabase->sourceFile( archive( 'patch-page_deleted.sql' ) );
1918         } else {
1919                 wfOut( "... table \"page\" has \"page_deleted\" trigger\n" );
1920         }
1921
1922         $fi = $wgDatabase->fieldInfo( "recentchanges", "rc_cur_id" );
1923         if ( !$fi->nullable() ) {
1924                 wfOut( "Removing NOT NULL constraint from \"recentchanges.rc_cur_id\"\n" );
1925                 $wgDatabase->sourceFile( archive( 'patch-rc_cur_id-not-null.sql' ) );
1926         } else {
1927                 wfOut( "... column \"recentchanges.rc_cur_id\" has a NOT NULL constraint\n" );
1928         }
1929
1930         $pu = pg_describe_index( "pagelink_unique" );
1931         if ( !is_null( $pu ) && ( $pu[0] != "pl_from" || $pu[1] != "pl_namespace" || $pu[2] != "pl_title" ) ) {
1932                 wfOut( "Dropping obsolete version of index \"pagelink_unique index\"\n" );
1933                 $wgDatabase->query( "DROP INDEX pagelink_unique" );
1934                 $pu = null;
1935         } else {
1936                 wfOut( "... obsolete version of index \"pagelink_unique index\" does not exist\n" );
1937         }
1938
1939         if ( is_null( $pu ) ) {
1940                 wfOut( "Creating index \"pagelink_unique index\"\n" );
1941                 $wgDatabase->query( "CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)" );
1942         } else {
1943                 wfOut( "... index \"pagelink_unique_index\" already exists\n" );
1944         }
1945
1946         if ( pg_fkey_deltype( "revision_rev_user_fkey" ) == 'r' ) {
1947                 wfOut( "... constraint \"revision_rev_user_fkey\" is ON DELETE RESTRICT\n" );
1948         } else {
1949                 wfOut( "Changing constraint \"revision_rev_user_fkey\" to ON DELETE RESTRICT\n" );
1950                 $wgDatabase->sourceFile( archive( 'patch-revision_rev_user_fkey.sql' ) );
1951         }
1952
1953         # Fix ipb_address index
1954         if ( pg_index_exists( 'ipblocks', 'ipb_address' ) ) {
1955                 wfOut( "Removing deprecated index 'ipb_address'...\n" );
1956                 $wgDatabase->query( 'DROP INDEX ipb_address' );
1957         }
1958         if ( pg_index_exists( 'ipblocks', 'ipb_address_unique' ) ) {
1959                 wfOut( "... have ipb_address_unique\n" );
1960         } else {
1961                 wfOut( "Adding ipb_address_unique index\n" );
1962                 $wgDatabase->sourceFile( archive( 'patch-ipb_address_unique.sql' ) );
1963         }
1964
1965         # Fix iwlinks index
1966         if ( pg_index_exists( 'iwlinks', 'iwl_prefix' ) ) {
1967                 wfOut( "Replacing index 'iwl_prefix' with 'iwl_prefix_from_title'...\n" );
1968                 $wgDatabase->sourceFile( archive( 'patch-rename-iwl_prefix.sql' ) );
1969         }
1970
1971         global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
1972         # Add missing extension tables
1973         foreach ( $wgExtNewTables as $nt ) {
1974                 if ( $wgDatabase->tableExists( $nt[0] ) ) {
1975                         wfOut( "... table \"$nt[0]\" already exists\n" );
1976                         continue;
1977                 }
1978                 wfOut( "Creating table \"$nt[0]\"\n" );
1979                 $wgDatabase->sourceFile( $nt[1] );
1980         }
1981         # Add missing extension fields
1982         foreach ( $wgExtPGNewFields as $nc ) {
1983                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1984                 if ( !is_null( $fi ) ) {
1985                         wfOut( "... column \"$nc[0].$nc[1]\" already exists\n" );
1986                         continue;
1987                 }
1988                 wfOut( "Adding column \"$nc[0].$nc[1]\"\n" );
1989                 $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
1990         }
1991         # Change altered columns
1992         foreach ( $wgExtPGAlteredFields as $nc ) {
1993                 $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
1994                 if ( is_null( $fi ) ) {
1995                         wfOut( "WARNING! Column \"$nc[0].$nc[1]\" does not exist but had an alter request! Please report this.\n" );
1996                         continue;
1997                 }
1998                 $oldtype = $fi->type();
1999                 $newtype = strtolower( $nc[2] );
2000                 if ( $oldtype === $newtype ) {
2001                         wfOut( "... column \"$nc[0].$nc[1]\" has correct type of \"$newtype\"\n" );
2002                         continue;
2003                 }
2004                 $command = "ALTER TABLE $nc[0] ALTER $nc[1] TYPE $nc[2]";
2005                 if ( isset( $nc[3] ) ) {
2006                         $command .= " USING $nc[3]";
2007                 }
2008                 wfOut( "Altering column \"$nc[0].$nc[1]\" from type \"$oldtype\" to \"$newtype\"\n" );
2009                 $wgDatabase->query( $command );
2010         }
2011         # Add missing extension indexes
2012         foreach ( $wgExtNewIndexes as $ni ) {
2013                 if ( pg_index_exists( $ni[0], $ni[1] ) ) {
2014                         wfOut( "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n" );
2015                         continue;
2016                 }
2017                 wfOut( "Creating index \"$ni[1]\" on table \"$ni[0]\"\n" );
2018                 if ( preg_match( '/^\(/', $ni[2] ) ) {
2019                         $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
2020                 }
2021                 else {
2022                         $wgDatabase->sourceFile( $ni[2] );
2023                 }
2024         }
2025
2026         foreach ( $deferredcols AS $dc ) {
2027                 $fi = $wgDatabase->fieldInfo( $dc[0], $dc[1] );
2028                 if ( is_null( $fi ) ) {
2029                         wfOut( "WARNING! Column \"$dc[0].$dc[1]\" does not exist but it should! Please report this.\n" );
2030                         continue;
2031                 }
2032                 if ( $fi->is_deferred() && $fi->is_deferrable() ) {
2033                         continue;
2034                 }
2035                 wfOut( "Altering column \"$dc[0].$dc[1]\" to be DEFERRABLE INITIALLY DEFERRED\n" );
2036                 $conname = $fi->conname();
2037                 $clause = $dc[2];
2038                 $command = "ALTER TABLE $dc[0] DROP CONSTRAINT $conname";
2039                 $wgDatabase->query( $command );
2040                 $command = "ALTER TABLE $dc[0] ADD CONSTRAINT $conname FOREIGN KEY ($dc[1]) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
2041                 $wgDatabase->query( $command );
2042         }
2043
2044         # Tweak the page_title tsearch2 trigger to filter out slashes
2045         # This is create or replace, so harmless to call if not needed
2046         $wgDatabase->sourceFile( archive( 'patch-ts2pagetitle.sql' ) );
2047
2048         # # If the server is 8.3 or higher, rewrite the tsearch2 triggers
2049         # # in case they have the old 'default' versions
2050         if ( $numver >= 8.3 ) {
2051                 $wgDatabase->sourceFile( archive( 'patch-tsearch2funcs.sql' ) );
2052         }
2053         return;
2054 }