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