includes/installer/MysqlUpdater.php

   1 <?php
   2 /**
   3  * MySQL-specific updater.
   4  *
   5  * @file
   6  * @ingroup Deployment
   7  */
   8
   9 /**
  10  * Mysql update list and mysql-specific update functions.
  11  *
  12  * @ingroup Deployment
  13  * @since 1.17
  14  */
  15 class MysqlUpdater extends DatabaseUpdater {
  16
  17         protected function getCoreUpdateList() {
  18                 return array(
  19                         // 1.2
  20                         array( 'addField', 'ipblocks',      'ipb_id',           'patch-ipblocks.sql' ),
  21                         array( 'addField', 'ipblocks',      'ipb_expiry',       'patch-ipb_expiry.sql' ),
  22                         array( 'doInterwikiUpdate' ),
  23                         array( 'doIndexUpdate' ),
  24                         array( 'addTable', 'hitcounter',                        'patch-hitcounter.sql' ),
  25                         array( 'addField', 'recentchanges', 'rc_type',          'patch-rc_type.sql' ),
  26
  27                         // 1.3
  28                         array( 'addField', 'user',          'user_real_name',   'patch-user-realname.sql' ),
  29                         array( 'addTable', 'querycache',                        'patch-querycache.sql' ),
  30                         array( 'addTable', 'objectcache',                       'patch-objectcache.sql' ),
  31                         array( 'addTable', 'categorylinks',                     'patch-categorylinks.sql' ),
  32                         array( 'doOldLinksUpdate' ),
  33                         array( 'doFixAncientImagelinks' ),
  34                         array( 'addField', 'recentchanges', 'rc_ip',            'patch-rc_ip.sql' ),
  35
  36                         // 1.4
  37                         array( 'addIndex', 'image',         'PRIMARY',          'patch-image_name_primary.sql' ),
  38                         array( 'addField', 'recentchanges', 'rc_id',            'patch-rc_id.sql' ),
  39                         array( 'addField', 'recentchanges', 'rc_patrolled',     'patch-rc-patrol.sql' ),
  40                         array( 'addTable', 'logging',                           'patch-logging.sql' ),
  41                         array( 'addField', 'user',          'user_token',       'patch-user_token.sql' ),
  42                         array( 'addField', 'watchlist',     'wl_notificationtimestamp', 'patch-email-notification.sql' ),
  43                         array( 'doWatchlistUpdate' ),
  44                         array( 'dropField', 'user',         'user_emailauthenticationtimestamp', 'patch-email-authentication.sql' ),
  45
  46                         // 1.5
  47                         array( 'doSchemaRestructuring' ),
  48                         array( 'addField', 'logging',       'log_params',       'patch-log_params.sql' ),
  49                         array( 'checkBin', 'logging',       'log_title',        'patch-logging-title.sql', ),
  50                         array( 'addField', 'archive',       'ar_rev_id',        'patch-archive-rev_id.sql' ),
  51                         array( 'addField', 'page',          'page_len',         'patch-page_len.sql' ),
  52                         array( 'dropField', 'revision',     'inverse_timestamp', 'patch-inverse_timestamp.sql' ),
  53                         array( 'addField', 'revision',      'rev_text_id',      'patch-rev_text_id.sql' ),
  54                         array( 'addField', 'revision',      'rev_deleted',      'patch-rev_deleted.sql' ),
  55                         array( 'addField', 'image',         'img_width',        'patch-img_width.sql' ),
  56                         array( 'addField', 'image',         'img_metadata',     'patch-img_metadata.sql' ),
  57                         array( 'addField', 'user',          'user_email_token', 'patch-user_email_token.sql' ),
  58                         array( 'addField', 'archive',       'ar_text_id',       'patch-archive-text_id.sql' ),
  59                         array( 'doNamespaceSize' ),
  60                         array( 'addField', 'image',         'img_media_type',   'patch-img_media_type.sql' ),
  61                         array( 'doPagelinksUpdate' ),
  62                         array( 'dropField', 'image',        'img_type',         'patch-drop_img_type.sql' ),
  63                         array( 'doUserUniqueUpdate' ),
  64                         array( 'doUserGroupsUpdate' ),
  65                         array( 'addField', 'site_stats',    'ss_total_pages',   'patch-ss_total_articles.sql' ),
  66                         array( 'addTable', 'user_newtalk',                      'patch-usernewtalk2.sql' ),
  67                         array( 'addTable', 'transcache',                        'patch-transcache.sql' ),
  68                         array( 'addField', 'interwiki',     'iw_trans',         'patch-interwiki-trans.sql' ),
  69
  70                         // 1.6
  71                         array( 'doWatchlistNull' ),
  72                         array( 'addIndex', 'logging',         'times',            'patch-logging-times-index.sql' ),
  73                         array( 'addField', 'ipblocks',        'ipb_range_start',  'patch-ipb_range_start.sql' ),
  74                         array( 'doPageRandomUpdate' ),
  75                         array( 'addField', 'user',            'user_registration', 'patch-user_registration.sql' ),
  76                         array( 'doTemplatelinksUpdate' ),
  77                         array( 'addTable', 'externallinks',                       'patch-externallinks.sql' ),
  78                         array( 'addTable', 'job',                                 'patch-job.sql' ),
  79                         array( 'addField', 'site_stats',      'ss_images',        'patch-ss_images.sql' ),
  80                         array( 'addTable', 'langlinks',                           'patch-langlinks.sql' ),
  81                         array( 'addTable', 'querycache_info',                     'patch-querycacheinfo.sql' ),
  82                         array( 'addTable', 'filearchive',                         'patch-filearchive.sql' ),
  83                         array( 'addField', 'ipblocks',        'ipb_anon_only',    'patch-ipb_anon_only.sql' ),
  84                         array( 'addIndex', 'recentchanges',   'rc_ns_usertext',   'patch-recentchanges-utindex.sql' ),
  85                         array( 'addIndex', 'recentchanges',   'rc_user_text',     'patch-rc_user_text-index.sql' ),
  86
  87                         // 1.9
  88                         array( 'addField', 'user',          'user_newpass_time', 'patch-user_newpass_time.sql' ),
  89                         array( 'addTable', 'redirect',                           'patch-redirect.sql' ),
  90                         array( 'addTable', 'querycachetwo',                      'patch-querycachetwo.sql' ),
  91                         array( 'addField', 'ipblocks',      'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ),
  92                         array( 'doBacklinkingIndicesUpdate' ),
  93                         array( 'addField', 'recentchanges', 'rc_old_len',        'patch-rc_len.sql' ),
  94                         array( 'addField', 'user',          'user_editcount',    'patch-user_editcount.sql' ),
  95
  96                         // 1.10
  97                         array( 'doRestrictionsUpdate' ),
  98                         array( 'addField', 'logging',       'log_id',           'patch-log_id.sql' ),
  99                         array( 'addField', 'revision',      'rev_parent_id',    'patch-rev_parent_id.sql' ),
 100                         array( 'addField', 'page_restrictions', 'pr_id',        'patch-page_restrictions_sortkey.sql' ),
 101                         array( 'addField', 'revision',      'rev_len',          'patch-rev_len.sql' ),
 102                         array( 'addField', 'recentchanges', 'rc_deleted',       'patch-rc_deleted.sql' ),
 103                         array( 'addField', 'logging',       'log_deleted',      'patch-log_deleted.sql' ),
 104                         array( 'addField', 'archive',       'ar_deleted',       'patch-ar_deleted.sql' ),
 105                         array( 'addField', 'ipblocks',      'ipb_deleted',      'patch-ipb_deleted.sql' ),
 106                         array( 'addField', 'filearchive',   'fa_deleted',       'patch-fa_deleted.sql' ),
 107                         array( 'addField', 'archive',       'ar_len',           'patch-ar_len.sql' ),
 108
 109                         // 1.11
 110                         array( 'addField', 'ipblocks',      'ipb_block_email',  'patch-ipb_emailban.sql' ),
 111                         array( 'doCategorylinksIndicesUpdate' ),
 112                         array( 'addField', 'oldimage',      'oi_metadata',      'patch-oi_metadata.sql' ),
 113                         array( 'addIndex', 'archive',       'usertext_timestamp', 'patch-archive-user-index.sql' ),
 114                         array( 'addIndex', 'image',         'img_usertext_timestamp', 'patch-image-user-index.sql' ),
 115                         array( 'addIndex', 'oldimage',      'oi_usertext_timestamp', 'patch-oldimage-user-index.sql' ),
 116                         array( 'addField', 'archive',       'ar_page_id',       'patch-archive-page_id.sql' ),
 117                         array( 'addField', 'image',         'img_sha1',         'patch-img_sha1.sql' ),
 118
 119                         // 1.12
 120                         array( 'addTable', 'protected_titles',                  'patch-protected_titles.sql' ),
 121
 122                         // 1.13
 123                         array( 'addField', 'ipblocks',      'ipb_by_text',      'patch-ipb_by_text.sql' ),
 124                         array( 'addTable', 'page_props',                        'patch-page_props.sql' ),
 125                         array( 'addTable', 'updatelog',                         'patch-updatelog.sql' ),
 126                         array( 'addTable', 'category',                          'patch-category.sql' ),
 127                         array( 'doCategoryPopulation' ),
 128                         array( 'addField', 'archive',       'ar_parent_id',     'patch-ar_parent_id.sql' ),
 129                         array( 'addField', 'user_newtalk',  'user_last_timestamp', 'patch-user_last_timestamp.sql' ),
 130                         array( 'doPopulateParentId' ),
 131                         array( 'checkBin', 'protected_titles', 'pt_title',      'patch-pt_title-encoding.sql', ),
 132                         array( 'doMaybeProfilingMemoryUpdate' ),
 133                         array( 'doFilearchiveIndicesUpdate' ),
 134
 135                         // 1.14
 136                         array( 'addField', 'site_stats',    'ss_active_users',  'patch-ss_active_users.sql' ),
 137                         array( 'doActiveUsersInit' ),
 138                         array( 'addField', 'ipblocks',      'ipb_allow_usertalk', 'patch-ipb_allow_usertalk.sql' ),
 139
 140                         // 1.15
 141                         array( 'doUniquePlTlIl' ),
 142                         array( 'addTable', 'change_tag',                        'patch-change_tag.sql' ),
 143                         array( 'addTable', 'tag_summary',                       'patch-change_tag.sql' ),
 144                         array( 'addTable', 'valid_tag',                         'patch-change_tag.sql' ),
 145
 146                         // 1.16
 147                         array( 'addTable', 'user_properties',                   'patch-user_properties.sql' ),
 148                         array( 'addTable', 'log_search',                        'patch-log_search.sql' ),
 149                         array( 'addField', 'logging',       'log_user_text',    'patch-log_user_text.sql' ),
 150                         array( 'doLogUsertextPopulation' ), # listed separately from the previous update because 1.16 was released without this update
 151                         array( 'doLogSearchPopulation' ),
 152                         array( 'addTable', 'l10n_cache',                        'patch-l10n_cache.sql' ),
 153                         array( 'addTable', 'external_user',                     'patch-external_user.sql' ),
 154                         array( 'addIndex', 'log_search',    'ls_field_val',     'patch-log_search-rename-index.sql' ),
 155                         array( 'addIndex', 'change_tag',    'change_tag_rc_tag', 'patch-change_tag-indexes.sql' ),
 156                         array( 'addField', 'redirect',      'rd_interwiki',     'patch-rd_interwiki.sql' ),
 157                         array( 'doUpdateTranscacheField' ),
 158                         array( 'renameEuWikiId' ),
 159                         array( 'doUpdateMimeMinorField' ),
 160
 161                         // 1.17
 162                         array( 'addTable', 'iwlinks',                           'patch-iwlinks.sql' ),
 163                         array( 'addIndex', 'iwlinks', 'iwl_prefix_title_from',  'patch-rename-iwl_prefix.sql' ),
 164                         array( 'addField', 'updatelog',     'ul_value',         'patch-ul_value.sql' ),
 165                         array( 'addField', 'interwiki',     'iw_api',           'patch-iw_api_and_wikiid.sql' ),
 166                         array( 'dropIndex', 'iwlinks',      'iwl_prefix',       'patch-kill-iwl_prefix.sql' ),
 167                         array( 'dropIndex', 'iwlinks',      'iwl_prefix_from_title', 'patch-kill-iwl_pft.sql' ),
 168                         array( 'addField', 'categorylinks', 'cl_collation',     'patch-categorylinks-better-collation.sql' ),
 169                         array( 'doClFieldsUpdate' ),
 170                         array( 'doCollationUpdate' ),
 171                         array( 'addTable', 'msg_resource',                      'patch-msg_resource.sql' ),
 172                         array( 'addTable', 'module_deps',                       'patch-module_deps.sql' ),
 173                         array( 'dropIndex', 'archive',      'ar_page_revid',    'patch-archive_kill_ar_page_revid.sql' ),
 174                         array( 'addIndex', 'archive',       'ar_revid',         'patch-archive_ar_revid.sql' ),
 175                         array( 'doLangLinksLengthUpdate' ),
 176
 177                         // 1.18
 178                         array( 'doUserNewTalkTimestampNotNull' ),
 179                         array( 'addIndex', 'user',          'user_email',       'patch-user_email_index.sql' ),
 180                         array( 'modifyField', 'user_properties', 'up_property', 'patch-up_property.sql' ),
 181                         array( 'addTable', 'uploadstash',                       'patch-uploadstash.sql' ),
 182                         array( 'addTable', 'user_former_groups',                'patch-user_former_groups.sql'),
 183
 184                         // 1.19
 185                         array( 'addTable', 'config',                            'patch-config.sql' ),
 186                         array( 'addIndex', 'logging',       'type_action',      'patch-logging-type-action-index.sql'),
 187                         array( 'doMigrateUserOptions' ),
 188                         array( 'dropField', 'user',         'user_options', 'patch-drop-user_options.sql' ),
 189                         array( 'addField', 'revision',      'rev_sha1',         'patch-rev_sha1.sql' ),
 190                         array( 'addField', 'archive',       'ar_sha1',          'patch-ar_sha1.sql' ),
 191                         array( 'addIndex', 'page', 'page_redirect_namespace_len', 'patch-page_redirect_namespace_len.sql' ),
 192                         array( 'modifyField', 'user', 'ug_group', 'patch-ug_group-length-increase.sql' ),
 193                         array( 'addField',      'uploadstash',  'us_chunk_inx',         'patch-uploadstash_chunk.sql' ),
 194                         array( 'addfield', 'job',           'job_timestamp',    'patch-jobs-add-timestamp.sql' ),
 195                         array( 'dropAncientTables' ),
 196                 );
 197         }
 198
 199         /**
 200          * 1.4 betas were missing the 'binary' marker from logging.log_title,
 201          * which causes a collation mismatch error on joins in MySQL 4.1.
 202          *
 203          * @param $table String: table name
 204          * @param $field String: field name to check
 205          * @param $patchFile String: path to the patch to correct the field
 206          */
 207         protected function checkBin( $table, $field, $patchFile ) {
 208                 $tableName = $this->db->tableName( $table );
 209                 $res = $this->db->query( "SELECT $field FROM $tableName LIMIT 0", __METHOD__ );
 210                 $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 211
 212                 if ( in_array( 'binary', $flags ) ) {
 213                         $this->output( "...$table table has correct $field encoding.\n" );
 214                 } else {
 215                         $this->output( "Fixing $field encoding on $table table... " );
 216                         $this->applyPatch( $patchFile );
 217                         $this->output( "done.\n" );
 218                 }
 219         }
 220
 221         /**
 222          * Check whether an index contain a field
 223          *
 224          * @param $table String: table name
 225          * @param $index String: index name to check
 226          * @param $field String: field that should be in the index
 227          * @return Boolean
 228          */
 229         protected function indexHasField( $table, $index, $field ) {
 230                 $info = $this->db->indexInfo( $table, $index, __METHOD__ );
 231                 if ( $info ) {
 232                         foreach ( $info as $row ) {
 233                                 if ( $row->Column_name == $field ) {
 234                                         $this->output( "...index $index on table $table includes field $field.\n" );
 235                                         return true;
 236                                 }
 237                         }
 238                 }
 239                 $this->output( "...index $index on table $table has no field $field; added.\n" );
 240                 return false;
 241         }
 242
 243         /**
 244          * Check that interwiki table exists; if it doesn't source it
 245          */
 246         protected function doInterwikiUpdate() {
 247                 global $IP;
 248
 249                 if ( $this->db->tableExists( "interwiki", __METHOD__ ) ) {
 250                         $this->output( "...already have interwiki table\n" );
 251                         return;
 252                 }
 253
 254                 $this->output( 'Creating interwiki table...' );
 255                 $this->applyPatch( 'patch-interwiki.sql' );
 256                 $this->output( "done.\n" );
 257                 $this->output( 'Adding default interwiki definitions...' );
 258                 $this->applyPatch( "$IP/maintenance/interwiki.sql", true );
 259                 $this->output( "done.\n" );
 260         }
 261
 262         /**
 263          * Check that proper indexes are in place
 264          */
 265         protected function doIndexUpdate() {
 266                 $meta = $this->db->fieldInfo( 'recentchanges', 'rc_timestamp' );
 267                 if ( $meta === false ) {
 268                         throw new MWException( 'Missing rc_timestamp field of recentchanges table. Should not happen.' );
 269                 }
 270                 if ( $meta->isMultipleKey() ) {
 271                         $this->output( "...indexes seem up to 20031107 standards.\n" );
 272                         return;
 273                 }
 274
 275                 $this->output( "Updating indexes to 20031107..." );
 276                 $this->applyPatch( 'patch-indexes.sql', true );
 277                 $this->output( "done.\n" );
 278         }
 279
 280         protected function doOldLinksUpdate() {
 281                 $cl = $this->maintenance->runChild( 'ConvertLinks' );
 282                 $cl->execute();
 283         }
 284
 285         protected function doFixAncientImagelinks() {
 286                 $info = $this->db->fieldInfo( 'imagelinks', 'il_from' );
 287                 if ( !$info || $info->type() !== 'string' ) {
 288                         $this->output( "...il_from OK\n" );
 289                         return;
 290                 }
 291
 292                 $this->output( "Fixing ancient broken imagelinks table.\n" );
 293                 $this->output( "NOTE: you will have to run maintenance/refreshLinks.php after this.\n" );
 294                 $this->applyPatch( 'patch-fix-il_from.sql' );
 295                 $this->output( "done.\n" );
 296         }
 297
 298         /**
 299          * Check if we need to add talk page rows to the watchlist
 300          */
 301         function doWatchlistUpdate() {
 302                 $talk = $this->db->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', __METHOD__ );
 303                 $nontalk = $this->db->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', __METHOD__ );
 304                 if ( $talk == $nontalk ) {
 305                         $this->output( "...watchlist talk page rows already present.\n" );
 306                         return;
 307                 }
 308
 309                 $this->output( "Adding missing watchlist talk page rows... " );
 310                 $this->db->insertSelect( 'watchlist', 'watchlist',
 311                         array(
 312                                 'wl_user' => 'wl_user',
 313                                 'wl_namespace' => 'wl_namespace | 1',
 314                                 'wl_title' => 'wl_title',
 315                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 316                         ), array( 'NOT (wl_namespace & 1)' ), __METHOD__, 'IGNORE' );
 317                 $this->output( "done.\n" );
 318         }
 319
 320         function doSchemaRestructuring() {
 321                 if ( $this->db->tableExists( 'page', __METHOD__ ) ) {
 322                         $this->output( "...page table already exists.\n" );
 323                         return;
 324                 }
 325
 326                 $this->output( "...converting from cur/old to page/revision/text DB structure.\n" );
 327                 $this->output( wfTimestamp( TS_DB ) );
 328                 $this->output( "......checking for duplicate entries.\n" );
 329
 330                 list ( $cur, $old, $page, $revision, $text ) = $this->db->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 331
 332                 $rows = $this->db->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 333                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", __METHOD__ );
 334
 335                 if ( $rows->numRows() > 0 ) {
 336                         $this->output( wfTimestamp( TS_DB ) );
 337                         $this->output( "......<b>Found duplicate entries</b>\n" );
 338                         $this->output( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 339                         $duplicate = array();
 340                         foreach ( $rows as $row ) {
 341                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 342                                         $duplicate[$row->cur_namespace] = array();
 343                                 }
 344                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 345                                 $this->output( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 346                         }
 347                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 348                         $firstCond = true;
 349                         foreach ( $duplicate as $ns => $titles ) {
 350                                 if ( $firstCond ) {
 351                                         $firstCond = false;
 352                                 } else {
 353                                         $sql .= ' OR ';
 354                                 }
 355                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 356                                 $first = true;
 357                                 foreach ( $titles as $t ) {
 358                                         if ( $first ) {
 359                                                 $sql .= $this->db->addQuotes( $t );
 360                                                 $first = false;
 361                                         } else {
 362                                                 $sql .= ', ' . $this->db->addQuotes( $t );
 363                                         }
 364                                 }
 365                                 $sql .= ") ) \n";
 366                         }
 367                         # By sorting descending, the most recent entry will be the first in the list.
 368                         # All following entries will be deleted by the next while-loop.
 369                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 370
 371                         $rows = $this->db->query( $sql, __METHOD__ );
 372
 373                         $prev_title = $prev_namespace = false;
 374                         $deleteId = array();
 375
 376                         foreach ( $rows as $row ) {
 377                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 378                                         $deleteId[] = $row->cur_id;
 379                                 }
 380                                 $prev_title     = $row->cur_title;
 381                                 $prev_namespace = $row->cur_namespace;
 382                         }
 383                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 384                         $this->db->query( $sql, __METHOD__ );
 385                         $this->output( wfTimestamp( TS_DB ) );
 386                         $this->output( "......<b>Deleted</b> " . $this->db->affectedRows() . " records.\n" );
 387                 }
 388
 389                 $this->output( wfTimestamp( TS_DB ) );
 390                 $this->output( "......Creating tables.\n" );
 391                 $this->db->query( "CREATE TABLE $page (
 392                         page_id int(8) unsigned NOT NULL auto_increment,
 393                         page_namespace int NOT NULL,
 394                         page_title varchar(255) binary NOT NULL,
 395                         page_restrictions tinyblob NOT NULL,
 396                         page_counter bigint(20) unsigned NOT NULL default '0',
 397                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 398                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 399                         page_random real unsigned NOT NULL,
 400                         page_touched char(14) binary NOT NULL default '',
 401                         page_latest int(8) unsigned NOT NULL,
 402                         page_len int(8) unsigned NOT NULL,
 403
 404                         PRIMARY KEY page_id (page_id),
 405                         UNIQUE INDEX name_title (page_namespace,page_title),
 406                         INDEX (page_random),
 407                         INDEX (page_len)
 408                         ) ENGINE=InnoDB", __METHOD__ );
 409                 $this->db->query( "CREATE TABLE $revision (
 410                         rev_id int(8) unsigned NOT NULL auto_increment,
 411                         rev_page int(8) unsigned NOT NULL,
 412                         rev_comment tinyblob NOT NULL,
 413                         rev_user int(5) unsigned NOT NULL default '0',
 414                         rev_user_text varchar(255) binary NOT NULL default '',
 415                         rev_timestamp char(14) binary NOT NULL default '',
 416                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 417                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 418                         rev_len int(8) unsigned,
 419                         rev_parent_id int(8) unsigned default NULL,
 420                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 421                         UNIQUE INDEX rev_id (rev_id),
 422                         INDEX rev_timestamp (rev_timestamp),
 423                         INDEX page_timestamp (rev_page,rev_timestamp),
 424                         INDEX user_timestamp (rev_user,rev_timestamp),
 425                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 426                         ) ENGINE=InnoDB", __METHOD__ );
 427
 428                 $this->output( wfTimestamp( TS_DB ) );
 429                 $this->output( "......Locking tables.\n" );
 430                 $this->db->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", __METHOD__ );
 431
 432                 $maxold = intval( $this->db->selectField( 'old', 'max(old_id)', '', __METHOD__ ) );
 433                 $this->output( wfTimestamp( TS_DB ) );
 434                 $this->output( "......maxold is {$maxold}\n" );
 435
 436                 $this->output( wfTimestamp( TS_DB ) );
 437                 global $wgLegacySchemaConversion;
 438                 if ( $wgLegacySchemaConversion ) {
 439                         // Create HistoryBlobCurStub entries.
 440                         // Text will be pulled from the leftover 'cur' table at runtime.
 441                         $this->output( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 442                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 443                         $cur_flags = "'object'";
 444                 } else {
 445                         // Copy all cur text in immediately: this may take longer but avoids
 446                         // having to keep an extra table around.
 447                         $this->output( "......Moving text from cur.\n" );
 448                         $cur_text = 'cur_text';
 449                         $cur_flags = "''";
 450                 }
 451                 $this->db->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 452                                         old_timestamp, old_minor_edit, old_flags)
 453                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 454                         FROM $cur", __METHOD__ );
 455
 456                 $this->output( wfTimestamp( TS_DB ) );
 457                 $this->output( "......Setting up revision table.\n" );
 458                 $this->db->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 459                                 rev_minor_edit)
 460                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 461                                 old_timestamp, old_minor_edit
 462                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", __METHOD__ );
 463
 464                 $this->output( wfTimestamp( TS_DB ) );
 465                 $this->output( "......Setting up page table.\n" );
 466                 $this->db->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 467                         page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 468                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 469                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 470                         FROM $cur,$revision
 471                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", __METHOD__ );
 472
 473                 $this->output( wfTimestamp( TS_DB ) );
 474                 $this->output( "......Unlocking tables.\n" );
 475                 $this->db->query( "UNLOCK TABLES", __METHOD__ );
 476
 477                 $this->output( wfTimestamp( TS_DB ) );
 478                 $this->output( "......Renaming old.\n" );
 479                 $this->db->query( "ALTER TABLE $old RENAME TO $text", __METHOD__ );
 480
 481                 $this->output( wfTimestamp( TS_DB ) );
 482                 $this->output( "...done.\n" );
 483         }
 484
 485         protected function doNamespaceSize() {
 486                 $tables = array(
 487                         'page'          => 'page',
 488                         'archive'       => 'ar',
 489                         'recentchanges' => 'rc',
 490                         'watchlist'     => 'wl',
 491                         'querycache'    => 'qc',
 492                         'logging'       => 'log',
 493                 );
 494                 foreach ( $tables as $table => $prefix ) {
 495                         $field = $prefix . '_namespace';
 496
 497                         $tablename = $this->db->tableName( $table );
 498                         $result = $this->db->query( "SHOW COLUMNS FROM $tablename LIKE '$field'", __METHOD__ );
 499                         $info = $this->db->fetchObject( $result );
 500
 501                         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 502                                 $this->output( "...$field is already a full int ($info->Type).\n" );
 503                         } else {
 504                                 $this->output( "Promoting $field from $info->Type to int... " );
 505                                 $this->db->query( "ALTER TABLE $tablename MODIFY $field int NOT NULL", __METHOD__ );
 506                                 $this->output( "done.\n" );
 507                         }
 508                 }
 509         }
 510
 511         protected function doPagelinksUpdate() {
 512                 if ( $this->db->tableExists( 'pagelinks', __METHOD__ ) ) {
 513                         $this->output( "...already have pagelinks table.\n" );
 514                         return;
 515                 }
 516
 517                 $this->output( "Converting links and brokenlinks tables to pagelinks... " );
 518                 $this->applyPatch( 'patch-pagelinks.sql' );
 519                 $this->output( "done.\n" );
 520
 521                 global $wgContLang;
 522                 foreach ( MWNamespace::getCanonicalNamespaces() as $ns => $name ) {
 523                         if ( $ns == 0 ) {
 524                                 continue;
 525                         }
 526
 527                         $this->output( "Cleaning up broken links for namespace $ns... " );
 528
 529                         $pagelinks = $this->db->tableName( 'pagelinks' );
 530                         $name = $wgContLang->getNsText( $ns );
 531                         $prefix = $this->db->strencode( $name );
 532                         $likeprefix = str_replace( '_', '\\_', $prefix );
 533
 534                         $sql = "UPDATE $pagelinks
 535                                            SET pl_namespace=$ns,
 536                                                    pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 537                                          WHERE pl_namespace=0
 538                                            AND pl_title LIKE '$likeprefix:%'";
 539
 540                         $this->db->query( $sql, __METHOD__ );
 541                         $this->output( "done.\n" );
 542                 }
 543         }
 544
 545         protected function doUserUniqueUpdate() {
 546                 $duper = new UserDupes( $this->db, array( $this, 'output' ) );
 547                 if ( $duper->hasUniqueIndex() ) {
 548                         $this->output( "...already have unique user_name index.\n" );
 549                         return;
 550                 }
 551
 552                 if ( !$duper->clearDupes() ) {
 553                         $this->output( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 554                 }
 555                 $this->output( "Adding unique index on user_name... " );
 556                 $this->applyPatch( 'patch-user_nameindex.sql' );
 557                 $this->output( "done.\n" );
 558         }
 559
 560         protected function doUserGroupsUpdate() {
 561                 if ( $this->db->tableExists( 'user_groups', __METHOD__ ) ) {
 562                         $info = $this->db->fieldInfo( 'user_groups', 'ug_group' );
 563                         if ( $info->type() == 'int' ) {
 564                                 $oldug = $this->db->tableName( 'user_groups' );
 565                                 $newug = $this->db->tableName( 'user_groups_bogus' );
 566                                 $this->output( "user_groups table exists but is in bogus intermediate format. Renaming to $newug... " );
 567                                 $this->db->query( "ALTER TABLE $oldug RENAME TO $newug", __METHOD__ );
 568                                 $this->output( "done.\n" );
 569
 570                                 $this->output( "Re-adding fresh user_groups table... " );
 571                                 $this->applyPatch( 'patch-user_groups.sql' );
 572                                 $this->output( "done.\n" );
 573
 574                                 $this->output( "***\n" );
 575                                 $this->output( "*** WARNING: You will need to manually fix up user permissions in the user_groups\n" );
 576                                 $this->output( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 577                                 $this->output( "***\n" );
 578                         } else {
 579                                 $this->output( "...user_groups table exists and is in current format.\n" );
 580                         }
 581                         return;
 582                 }
 583
 584                 $this->output( "Adding user_groups table... " );
 585                 $this->applyPatch( 'patch-user_groups.sql' );
 586                 $this->output( "done.\n" );
 587
 588                 if ( !$this->db->tableExists( 'user_rights', __METHOD__ ) ) {
 589                         if ( $this->db->fieldExists( 'user', 'user_rights', __METHOD__ ) ) {
 590                                 $this->output( "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion..." );
 591                                 $this->db->applyPatch( 'patch-user_rights.sql' );
 592                                 $this->output( "done.\n" );
 593                         } else {
 594                                 $this->output( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 595                                 $this->output( "*** You may need to manually configure some sysops by manipulating\n" );
 596                                 $this->output( "*** the user_groups table.\n" );
 597                                 return;
 598                         }
 599                 }
 600
 601                 $this->output( "Converting user_rights table to user_groups... " );
 602                 $result = $this->db->select( 'user_rights',
 603                         array( 'ur_user', 'ur_rights' ),
 604                         array( "ur_rights != ''" ),
 605                         __METHOD__ );
 606
 607                 foreach ( $result as $row ) {
 608                         $groups = array_unique(
 609                                 array_map( 'trim',
 610                                         explode( ',', $row->ur_rights ) ) );
 611
 612                         foreach ( $groups as $group ) {
 613                                 $this->db->insert( 'user_groups',
 614                                         array(
 615                                                 'ug_user'  => $row->ur_user,
 616                                                 'ug_group' => $group ),
 617                                         __METHOD__ );
 618                         }
 619                 }
 620                 $this->output( "done.\n" );
 621         }
 622
 623         /**
 624          * Make sure wl_notificationtimestamp can be NULL,
 625          * and update old broken items.
 626          */
 627         protected function doWatchlistNull() {
 628                 $info = $this->db->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 629                 if ( $info->isNullable() ) {
 630                         $this->output( "...wl_notificationtimestamp is already nullable.\n" );
 631                         return;
 632                 }
 633
 634                 $this->output( "Making wl_notificationtimestamp nullable... " );
 635                 $this->applyPatch( 'patch-watchlist-null.sql' );
 636                 $this->output( "done.\n" );
 637         }
 638
 639         /**
 640          * Set page_random field to a random value where it is equals to 0.
 641          *
 642          * @see bug 3946
 643          */
 644         protected function doPageRandomUpdate() {
 645                 $page = $this->db->tableName( 'page' );
 646                 $this->db->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", __METHOD__ );
 647                 $rows = $this->db->affectedRows();
 648
 649                 if( $rows ) {
 650                         $this->output( "Set page_random to a random value on $rows rows where it was set to 0\n" );
 651                 } else {
 652                         $this->output( "...no page_random rows needed to be set\n" );
 653                 }
 654         }
 655
 656         protected function doTemplatelinksUpdate() {
 657                 if ( $this->db->tableExists( 'templatelinks', __METHOD__ ) ) {
 658                         $this->output( "...templatelinks table already exists\n" );
 659                         return;
 660                 }
 661
 662                 $this->output( "Creating templatelinks table...\n" );
 663                 $this->applyPatch( 'patch-templatelinks.sql' );
 664                 $this->output( "Populating...\n" );
 665                 if ( wfGetLB()->getServerCount() > 1 ) {
 666                         // Slow, replication-friendly update
 667                         $res = $this->db->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 668                                 array( 'pl_namespace' => NS_TEMPLATE ), __METHOD__ );
 669                         $count = 0;
 670                         foreach ( $res as $row ) {
 671                                 $count = ( $count + 1 ) % 100;
 672                                 if ( $count == 0 ) {
 673                                         wfWaitForSlaves();
 674                                 }
 675                                 $this->db->insert( 'templatelinks',
 676                                         array(
 677                                                 'tl_from' => $row->pl_from,
 678                                                 'tl_namespace' => $row->pl_namespace,
 679                                                 'tl_title' => $row->pl_title,
 680                                         ), __METHOD__
 681                                 );
 682
 683                         }
 684                 } else {
 685                         // Fast update
 686                         $this->db->insertSelect( 'templatelinks', 'pagelinks',
 687                                 array(
 688                                         'tl_from' => 'pl_from',
 689                                         'tl_namespace' => 'pl_namespace',
 690                                         'tl_title' => 'pl_title'
 691                                 ), array(
 692                                         'pl_namespace' => 10
 693                                 ), __METHOD__
 694                         );
 695                 }
 696                 $this->output( "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n" );
 697         }
 698
 699         protected function doBacklinkingIndicesUpdate() {
 700                 if ( !$this->indexHasField( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 701                         !$this->indexHasField( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 702                         !$this->indexHasField( 'imagelinks', 'il_to', 'il_from' ) )
 703                 {
 704                         $this->applyPatch( 'patch-backlinkindexes.sql' );
 705                         $this->output( "...backlinking indices updated\n" );
 706                 }
 707         }
 708
 709         /**
 710          * Adding page_restrictions table, obsoleting page.page_restrictions.
 711          * Migrating old restrictions to new table
 712          * -- Andrew Garrett, January 2007.
 713          */
 714         protected function doRestrictionsUpdate() {
 715                 if ( $this->db->tableExists( 'page_restrictions', __METHOD__ ) ) {
 716                         $this->output( "...page_restrictions table already exists.\n" );
 717                         return;
 718                 }
 719
 720                 $this->output( "Creating page_restrictions table..." );
 721                 $this->applyPatch( 'patch-page_restrictions.sql' );
 722                 $this->applyPatch( 'patch-page_restrictions_sortkey.sql' );
 723                 $this->output( "done.\n" );
 724
 725                 $this->output( "Migrating old restrictions to new table...\n" );
 726                 $task = $this->maintenance->runChild( 'UpdateRestrictions' );
 727                 $task->execute();
 728         }
 729
 730         protected function doCategorylinksIndicesUpdate() {
 731                 if ( !$this->indexHasField( 'categorylinks', 'cl_sortkey', 'cl_from' ) ) {
 732                         $this->applyPatch( 'patch-categorylinksindex.sql' );
 733                         $this->output( "...categorylinks indices updated\n" );
 734                 }
 735         }
 736
 737         protected function doCategoryPopulation() {
 738                 if ( $this->updateRowExists( 'populate category' ) ) {
 739                         $this->output( "...category table already populated.\n" );
 740                         return;
 741                 }
 742
 743                 $this->output(
 744                         "Populating category table, printing progress markers. " .
 745                         "For large databases, you\n" .
 746                         "may want to hit Ctrl-C and do this manually with maintenance/\n" .
 747                         "populateCategory.php.\n"
 748                 );
 749                 $task = $this->maintenance->runChild( 'PopulateCategory' );
 750                 $task->execute();
 751                 $this->output( "Done populating category table.\n" );
 752         }
 753
 754         protected function doPopulateParentId() {
 755                 if ( !$this->updateRowExists( 'populate rev_parent_id' ) ) {
 756                         $this->output(
 757                                 "Populating rev_parent_id fields, printing progress markers. For large\n" .
 758                                 "databases, you may want to hit Ctrl-C and do this manually with\n" .
 759                                 "maintenance/populateParentId.php.\n" );
 760
 761                         $task = $this->maintenance->runChild( 'PopulateParentId' );
 762                         $task->execute();
 763                 }
 764         }
 765
 766         protected function doMaybeProfilingMemoryUpdate() {
 767                 if ( !$this->db->tableExists( 'profiling', __METHOD__ ) ) {
 768                         // Simply ignore
 769                 } elseif ( $this->db->fieldExists( 'profiling', 'pf_memory', __METHOD__ ) ) {
 770                         $this->output( "...profiling table has pf_memory field.\n" );
 771                 } else {
 772                         $this->output( "Adding pf_memory field to table profiling..." );
 773                         $this->applyPatch( 'patch-profiling-memory.sql' );
 774                         $this->output( "done.\n" );
 775                 }
 776         }
 777
 778         protected function doFilearchiveIndicesUpdate() {
 779                 $info = $this->db->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 780                 if ( !$info ) {
 781                         $this->output( "Updating filearchive indices..." );
 782                         $this->applyPatch( 'patch-filearchive-user-index.sql' );
 783                         $this->output( "done.\n" );
 784                 }
 785         }
 786
 787         protected function doUniquePlTlIl() {
 788                 $info = $this->db->indexInfo( 'pagelinks', 'pl_namespace' );
 789                 if ( is_array( $info ) && !$info[0]->Non_unique ) {
 790                         $this->output( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
 791                         return;
 792                 }
 793
 794                 $this->output( "Making pl_namespace, tl_namespace and il_to indices UNIQUE... " );
 795                 $this->applyPatch( 'patch-pl-tl-il-unique.sql' );
 796                 $this->output( "done.\n" );
 797         }
 798
 799         protected function renameEuWikiId() {
 800                 if ( $this->db->fieldExists( 'external_user', 'eu_local_id', __METHOD__ ) ) {
 801                         $this->output( "...eu_wiki_id already renamed to eu_local_id.\n" );
 802                         return;
 803                 }
 804
 805                 $this->output( "Renaming eu_wiki_id -> eu_local_id... " );
 806                 $this->applyPatch( 'patch-eu_local_id.sql' );
 807                 $this->output( "done.\n" );
 808         }
 809
 810         protected function doUpdateMimeMinorField() {
 811                 if ( $this->updateRowExists( 'mime_minor_length' ) ) {
 812                         $this->output( "...*_mime_minor fields are already long enough.\n" );
 813                         return;
 814                 }
 815
 816                 $this->output( "Altering all *_mime_minor fields to 100 bytes in size ... " );
 817                 $this->applyPatch( 'patch-mime_minor_length.sql' );
 818                 $this->output( "done.\n" );
 819         }
 820
 821         protected function doClFieldsUpdate() {
 822                 if ( $this->updateRowExists( 'cl_fields_update' ) ) {
 823                         $this->output( "...categorylinks up-to-date.\n" );
 824                         return;
 825                 }
 826
 827                 $this->output( 'Updating categorylinks (again)...' );
 828                 $this->applyPatch( 'patch-categorylinks-better-collation2.sql' );
 829                 $this->output( "done.\n" );
 830         }
 831
 832         protected function doLangLinksLengthUpdate() {
 833                 $langlinks = $this->db->tableName( 'langlinks' );
 834                 $res = $this->db->query( "SHOW COLUMNS FROM $langlinks LIKE 'll_lang'" );
 835                 $row = $this->db->fetchObject( $res );
 836
 837                 if ( $row && $row->Type == "varbinary(10)" ) {
 838                         $this->output( 'Updating length of ll_lang in langlinks...' );
 839                         $this->applyPatch( 'patch-langlinks-ll_lang-20.sql' );
 840                         $this->output( "done.\n" );
 841                 } else {
 842                         $this->output( "...ll_lang is up-to-date.\n" );
 843                 }
 844         }
 845
 846         protected function doUserNewTalkTimestampNotNull() {
 847                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_last_timestamp' );
 848                 if ( $info->isNullable() ) {
 849                         $this->output( "...user_last_timestamp is already nullable.\n" );
 850                         return;
 851                 }
 852
 853                 $this->output( "Making user_last_timestamp nullable... " );
 854                 $this->applyPatch( 'patch-user-newtalk-timestamp-null.sql' );
 855                 $this->output( "done.\n" );
 856         }
 857
 858         protected function dropAncientTables() {
 859                 $ancientTables = array(
 860                         'blobs', // 1.4
 861                         'brokenlinks', // 1.4
 862                         'cur', // 1.4
 863                         'ip_blocks_old', // Temporary in 1.6
 864                         'links', // 1.4
 865                         'linkscc', // 1.4
 866                         'old', // 1.4
 867                         'trackback', // 1.19
 868                         'user_rights', // 1.5
 869                         'validate', // 1.6
 870                 );
 871
 872                 foreach( $ancientTables as $table ) {
 873                         if ( $this->db->tableExists( $table, __METHOD__ ) ) {
 874                                 $this->db->dropTable( $table, __METHOD__ );
 875                         }
 876                 }
 877         }
 878 }