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( 'addIndex', 'logging',       'type_action',      'patch-logging-type-action-index.sql'),
 186                         array( 'doMigrateUserOptions' ),
 187                         array( 'dropField', 'user',         'user_options', 'patch-drop-user_options.sql' ),
 188                         array( 'addField', 'revision',      'rev_sha1',         'patch-rev_sha1.sql' ),
 189                         array( 'addField', 'archive',       'ar_sha1',          'patch-ar_sha1.sql' ),
 190                         array( 'addIndex', 'page', 'page_redirect_namespace_len', 'patch-page_redirect_namespace_len.sql' ),
 191                         array( 'modifyField', 'user_groups', 'ug_group', 'patch-ug_group-length-increase.sql' ),
 192                         array( 'addField',      'uploadstash',  'us_chunk_inx',         'patch-uploadstash_chunk.sql' ),
 193                         array( 'addfield', 'job',           'job_timestamp',    'patch-jobs-add-timestamp.sql' ),
 194                         array( 'modifyField', 'user_former_groups', 'ufg_group', 'patch-ufg_group-length-increase.sql' ),
 195
 196                         // 1.20
 197                         array( 'addTable', 'config',                            'patch-config.sql' ),
 198                 );
 199         }
 200
 201         /**
 202          * 1.4 betas were missing the 'binary' marker from logging.log_title,
 203          * which causes a collation mismatch error on joins in MySQL 4.1.
 204          *
 205          * @param $table String: table name
 206          * @param $field String: field name to check
 207          * @param $patchFile String: path to the patch to correct the field
 208          */
 209         protected function checkBin( $table, $field, $patchFile ) {
 210                 $tableName = $this->db->tableName( $table );
 211                 $res = $this->db->query( "SELECT $field FROM $tableName LIMIT 0", __METHOD__ );
 212                 $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 213
 214                 if ( in_array( 'binary', $flags ) ) {
 215                         $this->output( "...$table table has correct $field encoding.\n" );
 216                 } else {
 217                         $this->output( "Fixing $field encoding on $table table... " );
 218                         $this->applyPatch( $patchFile );
 219                         $this->output( "done.\n" );
 220                 }
 221         }
 222
 223         /**
 224          * Check whether an index contain a field
 225          *
 226          * @param $table String: table name
 227          * @param $index String: index name to check
 228          * @param $field String: field that should be in the index
 229          * @return Boolean
 230          */
 231         protected function indexHasField( $table, $index, $field ) {
 232                 $info = $this->db->indexInfo( $table, $index, __METHOD__ );
 233                 if ( $info ) {
 234                         foreach ( $info as $row ) {
 235                                 if ( $row->Column_name == $field ) {
 236                                         $this->output( "...index $index on table $table includes field $field.\n" );
 237                                         return true;
 238                                 }
 239                         }
 240                 }
 241                 $this->output( "...index $index on table $table has no field $field; added.\n" );
 242                 return false;
 243         }
 244
 245         /**
 246          * Check that interwiki table exists; if it doesn't source it
 247          */
 248         protected function doInterwikiUpdate() {
 249                 global $IP;
 250
 251                 if ( $this->db->tableExists( "interwiki", __METHOD__ ) ) {
 252                         $this->output( "...already have interwiki table\n" );
 253                         return;
 254                 }
 255
 256                 $this->output( 'Creating interwiki table...' );
 257                 $this->applyPatch( 'patch-interwiki.sql' );
 258                 $this->output( "done.\n" );
 259                 $this->output( 'Adding default interwiki definitions...' );
 260                 $this->applyPatch( "$IP/maintenance/interwiki.sql", true );
 261                 $this->output( "done.\n" );
 262         }
 263
 264         /**
 265          * Check that proper indexes are in place
 266          */
 267         protected function doIndexUpdate() {
 268                 $meta = $this->db->fieldInfo( 'recentchanges', 'rc_timestamp' );
 269                 if ( $meta === false ) {
 270                         throw new MWException( 'Missing rc_timestamp field of recentchanges table. Should not happen.' );
 271                 }
 272                 if ( $meta->isMultipleKey() ) {
 273                         $this->output( "...indexes seem up to 20031107 standards.\n" );
 274                         return;
 275                 }
 276
 277                 $this->output( "Updating indexes to 20031107..." );
 278                 $this->applyPatch( 'patch-indexes.sql', true );
 279                 $this->output( "done.\n" );
 280         }
 281
 282         protected function doOldLinksUpdate() {
 283                 $cl = $this->maintenance->runChild( 'ConvertLinks' );
 284                 $cl->execute();
 285         }
 286
 287         protected function doFixAncientImagelinks() {
 288                 $info = $this->db->fieldInfo( 'imagelinks', 'il_from' );
 289                 if ( !$info || $info->type() !== 'string' ) {
 290                         $this->output( "...il_from OK\n" );
 291                         return;
 292                 }
 293
 294                 $this->output( "Fixing ancient broken imagelinks table.\n" );
 295                 $this->output( "NOTE: you will have to run maintenance/refreshLinks.php after this.\n" );
 296                 $this->applyPatch( 'patch-fix-il_from.sql' );
 297                 $this->output( "done.\n" );
 298         }
 299
 300         /**
 301          * Check if we need to add talk page rows to the watchlist
 302          */
 303         function doWatchlistUpdate() {
 304                 $talk = $this->db->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', __METHOD__ );
 305                 $nontalk = $this->db->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', __METHOD__ );
 306                 if ( $talk == $nontalk ) {
 307                         $this->output( "...watchlist talk page rows already present.\n" );
 308                         return;
 309                 }
 310
 311                 $this->output( "Adding missing watchlist talk page rows... " );
 312                 $this->db->insertSelect( 'watchlist', 'watchlist',
 313                         array(
 314                                 'wl_user' => 'wl_user',
 315                                 'wl_namespace' => 'wl_namespace | 1',
 316                                 'wl_title' => 'wl_title',
 317                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 318                         ), array( 'NOT (wl_namespace & 1)' ), __METHOD__, 'IGNORE' );
 319                 $this->output( "done.\n" );
 320         }
 321
 322         function doSchemaRestructuring() {
 323                 if ( $this->db->tableExists( 'page', __METHOD__ ) ) {
 324                         $this->output( "...page table already exists.\n" );
 325                         return;
 326                 }
 327
 328                 $this->output( "...converting from cur/old to page/revision/text DB structure.\n" );
 329                 $this->output( wfTimestamp( TS_DB ) );
 330                 $this->output( "......checking for duplicate entries.\n" );
 331
 332                 list ( $cur, $old, $page, $revision, $text ) = $this->db->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 333
 334                 $rows = $this->db->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 335                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", __METHOD__ );
 336
 337                 if ( $rows->numRows() > 0 ) {
 338                         $this->output( wfTimestamp( TS_DB ) );
 339                         $this->output( "......<b>Found duplicate entries</b>\n" );
 340                         $this->output( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 341                         $duplicate = array();
 342                         foreach ( $rows as $row ) {
 343                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 344                                         $duplicate[$row->cur_namespace] = array();
 345                                 }
 346                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 347                                 $this->output( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 348                         }
 349                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 350                         $firstCond = true;
 351                         foreach ( $duplicate as $ns => $titles ) {
 352                                 if ( $firstCond ) {
 353                                         $firstCond = false;
 354                                 } else {
 355                                         $sql .= ' OR ';
 356                                 }
 357                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 358                                 $first = true;
 359                                 foreach ( $titles as $t ) {
 360                                         if ( $first ) {
 361                                                 $sql .= $this->db->addQuotes( $t );
 362                                                 $first = false;
 363                                         } else {
 364                                                 $sql .= ', ' . $this->db->addQuotes( $t );
 365                                         }
 366                                 }
 367                                 $sql .= ") ) \n";
 368                         }
 369                         # By sorting descending, the most recent entry will be the first in the list.
 370                         # All following entries will be deleted by the next while-loop.
 371                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 372
 373                         $rows = $this->db->query( $sql, __METHOD__ );
 374
 375                         $prev_title = $prev_namespace = false;
 376                         $deleteId = array();
 377
 378                         foreach ( $rows as $row ) {
 379                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 380                                         $deleteId[] = $row->cur_id;
 381                                 }
 382                                 $prev_title     = $row->cur_title;
 383                                 $prev_namespace = $row->cur_namespace;
 384                         }
 385                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 386                         $this->db->query( $sql, __METHOD__ );
 387                         $this->output( wfTimestamp( TS_DB ) );
 388                         $this->output( "......<b>Deleted</b> " . $this->db->affectedRows() . " records.\n" );
 389                 }
 390
 391                 $this->output( wfTimestamp( TS_DB ) );
 392                 $this->output( "......Creating tables.\n" );
 393                 $this->db->query( "CREATE TABLE $page (
 394                         page_id int(8) unsigned NOT NULL auto_increment,
 395                         page_namespace int NOT NULL,
 396                         page_title varchar(255) binary NOT NULL,
 397                         page_restrictions tinyblob NOT NULL,
 398                         page_counter bigint(20) unsigned NOT NULL default '0',
 399                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 400                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 401                         page_random real unsigned NOT NULL,
 402                         page_touched char(14) binary NOT NULL default '',
 403                         page_latest int(8) unsigned NOT NULL,
 404                         page_len int(8) unsigned NOT NULL,
 405
 406                         PRIMARY KEY page_id (page_id),
 407                         UNIQUE INDEX name_title (page_namespace,page_title),
 408                         INDEX (page_random),
 409                         INDEX (page_len)
 410                         ) ENGINE=InnoDB", __METHOD__ );
 411                 $this->db->query( "CREATE TABLE $revision (
 412                         rev_id int(8) unsigned NOT NULL auto_increment,
 413                         rev_page int(8) unsigned NOT NULL,
 414                         rev_comment tinyblob NOT NULL,
 415                         rev_user int(5) unsigned NOT NULL default '0',
 416                         rev_user_text varchar(255) binary NOT NULL default '',
 417                         rev_timestamp char(14) binary NOT NULL default '',
 418                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 419                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 420                         rev_len int(8) unsigned,
 421                         rev_parent_id int(8) unsigned default NULL,
 422                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 423                         UNIQUE INDEX rev_id (rev_id),
 424                         INDEX rev_timestamp (rev_timestamp),
 425                         INDEX page_timestamp (rev_page,rev_timestamp),
 426                         INDEX user_timestamp (rev_user,rev_timestamp),
 427                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 428                         ) ENGINE=InnoDB", __METHOD__ );
 429
 430                 $this->output( wfTimestamp( TS_DB ) );
 431                 $this->output( "......Locking tables.\n" );
 432                 $this->db->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", __METHOD__ );
 433
 434                 $maxold = intval( $this->db->selectField( 'old', 'max(old_id)', '', __METHOD__ ) );
 435                 $this->output( wfTimestamp( TS_DB ) );
 436                 $this->output( "......maxold is {$maxold}\n" );
 437
 438                 $this->output( wfTimestamp( TS_DB ) );
 439                 global $wgLegacySchemaConversion;
 440                 if ( $wgLegacySchemaConversion ) {
 441                         // Create HistoryBlobCurStub entries.
 442                         // Text will be pulled from the leftover 'cur' table at runtime.
 443                         $this->output( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 444                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 445                         $cur_flags = "'object'";
 446                 } else {
 447                         // Copy all cur text in immediately: this may take longer but avoids
 448                         // having to keep an extra table around.
 449                         $this->output( "......Moving text from cur.\n" );
 450                         $cur_text = 'cur_text';
 451                         $cur_flags = "''";
 452                 }
 453                 $this->db->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 454                                         old_timestamp, old_minor_edit, old_flags)
 455                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 456                         FROM $cur", __METHOD__ );
 457
 458                 $this->output( wfTimestamp( TS_DB ) );
 459                 $this->output( "......Setting up revision table.\n" );
 460                 $this->db->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 461                                 rev_minor_edit)
 462                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 463                                 old_timestamp, old_minor_edit
 464                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", __METHOD__ );
 465
 466                 $this->output( wfTimestamp( TS_DB ) );
 467                 $this->output( "......Setting up page table.\n" );
 468                 $this->db->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 469                         page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 470                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 471                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 472                         FROM $cur,$revision
 473                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", __METHOD__ );
 474
 475                 $this->output( wfTimestamp( TS_DB ) );
 476                 $this->output( "......Unlocking tables.\n" );
 477                 $this->db->query( "UNLOCK TABLES", __METHOD__ );
 478
 479                 $this->output( wfTimestamp( TS_DB ) );
 480                 $this->output( "......Renaming old.\n" );
 481                 $this->db->query( "ALTER TABLE $old RENAME TO $text", __METHOD__ );
 482
 483                 $this->output( wfTimestamp( TS_DB ) );
 484                 $this->output( "...done.\n" );
 485         }
 486
 487         protected function doNamespaceSize() {
 488                 $tables = array(
 489                         'page'          => 'page',
 490                         'archive'       => 'ar',
 491                         'recentchanges' => 'rc',
 492                         'watchlist'     => 'wl',
 493                         'querycache'    => 'qc',
 494                         'logging'       => 'log',
 495                 );
 496                 foreach ( $tables as $table => $prefix ) {
 497                         $field = $prefix . '_namespace';
 498
 499                         $tablename = $this->db->tableName( $table );
 500                         $result = $this->db->query( "SHOW COLUMNS FROM $tablename LIKE '$field'", __METHOD__ );
 501                         $info = $this->db->fetchObject( $result );
 502
 503                         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 504                                 $this->output( "...$field is already a full int ($info->Type).\n" );
 505                         } else {
 506                                 $this->output( "Promoting $field from $info->Type to int... " );
 507                                 $this->db->query( "ALTER TABLE $tablename MODIFY $field int NOT NULL", __METHOD__ );
 508                                 $this->output( "done.\n" );
 509                         }
 510                 }
 511         }
 512
 513         protected function doPagelinksUpdate() {
 514                 if ( $this->db->tableExists( 'pagelinks', __METHOD__ ) ) {
 515                         $this->output( "...already have pagelinks table.\n" );
 516                         return;
 517                 }
 518
 519                 $this->output( "Converting links and brokenlinks tables to pagelinks... " );
 520                 $this->applyPatch( 'patch-pagelinks.sql' );
 521                 $this->output( "done.\n" );
 522
 523                 global $wgContLang;
 524                 foreach ( MWNamespace::getCanonicalNamespaces() as $ns => $name ) {
 525                         if ( $ns == 0 ) {
 526                                 continue;
 527                         }
 528
 529                         $this->output( "Cleaning up broken links for namespace $ns... " );
 530
 531                         $pagelinks = $this->db->tableName( 'pagelinks' );
 532                         $name = $wgContLang->getNsText( $ns );
 533                         $prefix = $this->db->strencode( $name );
 534                         $likeprefix = str_replace( '_', '\\_', $prefix );
 535
 536                         $sql = "UPDATE $pagelinks
 537                                            SET pl_namespace=$ns,
 538                                                    pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 539                                          WHERE pl_namespace=0
 540                                            AND pl_title LIKE '$likeprefix:%'";
 541
 542                         $this->db->query( $sql, __METHOD__ );
 543                         $this->output( "done.\n" );
 544                 }
 545         }
 546
 547         protected function doUserUniqueUpdate() {
 548                 $duper = new UserDupes( $this->db, array( $this, 'output' ) );
 549                 if ( $duper->hasUniqueIndex() ) {
 550                         $this->output( "...already have unique user_name index.\n" );
 551                         return;
 552                 }
 553
 554                 if ( !$duper->clearDupes() ) {
 555                         $this->output( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 556                 }
 557                 $this->output( "Adding unique index on user_name... " );
 558                 $this->applyPatch( 'patch-user_nameindex.sql' );
 559                 $this->output( "done.\n" );
 560         }
 561
 562         protected function doUserGroupsUpdate() {
 563                 if ( $this->db->tableExists( 'user_groups', __METHOD__ ) ) {
 564                         $info = $this->db->fieldInfo( 'user_groups', 'ug_group' );
 565                         if ( $info->type() == 'int' ) {
 566                                 $oldug = $this->db->tableName( 'user_groups' );
 567                                 $newug = $this->db->tableName( 'user_groups_bogus' );
 568                                 $this->output( "user_groups table exists but is in bogus intermediate format. Renaming to $newug... " );
 569                                 $this->db->query( "ALTER TABLE $oldug RENAME TO $newug", __METHOD__ );
 570                                 $this->output( "done.\n" );
 571
 572                                 $this->output( "Re-adding fresh user_groups table... " );
 573                                 $this->applyPatch( 'patch-user_groups.sql' );
 574                                 $this->output( "done.\n" );
 575
 576                                 $this->output( "***\n" );
 577                                 $this->output( "*** WARNING: You will need to manually fix up user permissions in the user_groups\n" );
 578                                 $this->output( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 579                                 $this->output( "***\n" );
 580                         } else {
 581                                 $this->output( "...user_groups table exists and is in current format.\n" );
 582                         }
 583                         return;
 584                 }
 585
 586                 $this->output( "Adding user_groups table... " );
 587                 $this->applyPatch( 'patch-user_groups.sql' );
 588                 $this->output( "done.\n" );
 589
 590                 if ( !$this->db->tableExists( 'user_rights', __METHOD__ ) ) {
 591                         if ( $this->db->fieldExists( 'user', 'user_rights', __METHOD__ ) ) {
 592                                 $this->output( "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion..." );
 593                                 $this->db->applyPatch( 'patch-user_rights.sql' );
 594                                 $this->output( "done.\n" );
 595                         } else {
 596                                 $this->output( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 597                                 $this->output( "*** You may need to manually configure some sysops by manipulating\n" );
 598                                 $this->output( "*** the user_groups table.\n" );
 599                                 return;
 600                         }
 601                 }
 602
 603                 $this->output( "Converting user_rights table to user_groups... " );
 604                 $result = $this->db->select( 'user_rights',
 605                         array( 'ur_user', 'ur_rights' ),
 606                         array( "ur_rights != ''" ),
 607                         __METHOD__ );
 608
 609                 foreach ( $result as $row ) {
 610                         $groups = array_unique(
 611                                 array_map( 'trim',
 612                                         explode( ',', $row->ur_rights ) ) );
 613
 614                         foreach ( $groups as $group ) {
 615                                 $this->db->insert( 'user_groups',
 616                                         array(
 617                                                 'ug_user'  => $row->ur_user,
 618                                                 'ug_group' => $group ),
 619                                         __METHOD__ );
 620                         }
 621                 }
 622                 $this->output( "done.\n" );
 623         }
 624
 625         /**
 626          * Make sure wl_notificationtimestamp can be NULL,
 627          * and update old broken items.
 628          */
 629         protected function doWatchlistNull() {
 630                 $info = $this->db->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 631                 if ( $info->isNullable() ) {
 632                         $this->output( "...wl_notificationtimestamp is already nullable.\n" );
 633                         return;
 634                 }
 635
 636                 $this->output( "Making wl_notificationtimestamp nullable... " );
 637                 $this->applyPatch( 'patch-watchlist-null.sql' );
 638                 $this->output( "done.\n" );
 639         }
 640
 641         /**
 642          * Set page_random field to a random value where it is equals to 0.
 643          *
 644          * @see bug 3946
 645          */
 646         protected function doPageRandomUpdate() {
 647                 $page = $this->db->tableName( 'page' );
 648                 $this->db->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", __METHOD__ );
 649                 $rows = $this->db->affectedRows();
 650
 651                 if( $rows ) {
 652                         $this->output( "Set page_random to a random value on $rows rows where it was set to 0\n" );
 653                 } else {
 654                         $this->output( "...no page_random rows needed to be set\n" );
 655                 }
 656         }
 657
 658         protected function doTemplatelinksUpdate() {
 659                 if ( $this->db->tableExists( 'templatelinks', __METHOD__ ) ) {
 660                         $this->output( "...templatelinks table already exists\n" );
 661                         return;
 662                 }
 663
 664                 $this->output( "Creating templatelinks table...\n" );
 665                 $this->applyPatch( 'patch-templatelinks.sql' );
 666                 $this->output( "Populating...\n" );
 667                 if ( wfGetLB()->getServerCount() > 1 ) {
 668                         // Slow, replication-friendly update
 669                         $res = $this->db->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 670                                 array( 'pl_namespace' => NS_TEMPLATE ), __METHOD__ );
 671                         $count = 0;
 672                         foreach ( $res as $row ) {
 673                                 $count = ( $count + 1 ) % 100;
 674                                 if ( $count == 0 ) {
 675                                         wfWaitForSlaves();
 676                                 }
 677                                 $this->db->insert( 'templatelinks',
 678                                         array(
 679                                                 'tl_from' => $row->pl_from,
 680                                                 'tl_namespace' => $row->pl_namespace,
 681                                                 'tl_title' => $row->pl_title,
 682                                         ), __METHOD__
 683                                 );
 684
 685                         }
 686                 } else {
 687                         // Fast update
 688                         $this->db->insertSelect( 'templatelinks', 'pagelinks',
 689                                 array(
 690                                         'tl_from' => 'pl_from',
 691                                         'tl_namespace' => 'pl_namespace',
 692                                         'tl_title' => 'pl_title'
 693                                 ), array(
 694                                         'pl_namespace' => 10
 695                                 ), __METHOD__
 696                         );
 697                 }
 698                 $this->output( "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n" );
 699         }
 700
 701         protected function doBacklinkingIndicesUpdate() {
 702                 if ( !$this->indexHasField( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 703                         !$this->indexHasField( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 704                         !$this->indexHasField( 'imagelinks', 'il_to', 'il_from' ) )
 705                 {
 706                         $this->applyPatch( 'patch-backlinkindexes.sql' );
 707                         $this->output( "...backlinking indices updated\n" );
 708                 }
 709         }
 710
 711         /**
 712          * Adding page_restrictions table, obsoleting page.page_restrictions.
 713          * Migrating old restrictions to new table
 714          * -- Andrew Garrett, January 2007.
 715          */
 716         protected function doRestrictionsUpdate() {
 717                 if ( $this->db->tableExists( 'page_restrictions', __METHOD__ ) ) {
 718                         $this->output( "...page_restrictions table already exists.\n" );
 719                         return;
 720                 }
 721
 722                 $this->output( "Creating page_restrictions table..." );
 723                 $this->applyPatch( 'patch-page_restrictions.sql' );
 724                 $this->applyPatch( 'patch-page_restrictions_sortkey.sql' );
 725                 $this->output( "done.\n" );
 726
 727                 $this->output( "Migrating old restrictions to new table...\n" );
 728                 $task = $this->maintenance->runChild( 'UpdateRestrictions' );
 729                 $task->execute();
 730         }
 731
 732         protected function doCategorylinksIndicesUpdate() {
 733                 if ( !$this->indexHasField( 'categorylinks', 'cl_sortkey', 'cl_from' ) ) {
 734                         $this->applyPatch( 'patch-categorylinksindex.sql' );
 735                         $this->output( "...categorylinks indices updated\n" );
 736                 }
 737         }
 738
 739         protected function doCategoryPopulation() {
 740                 if ( $this->updateRowExists( 'populate category' ) ) {
 741                         $this->output( "...category table already populated.\n" );
 742                         return;
 743                 }
 744
 745                 $this->output(
 746                         "Populating category table, printing progress markers. " .
 747                         "For large databases, you\n" .
 748                         "may want to hit Ctrl-C and do this manually with maintenance/\n" .
 749                         "populateCategory.php.\n"
 750                 );
 751                 $task = $this->maintenance->runChild( 'PopulateCategory' );
 752                 $task->execute();
 753                 $this->output( "Done populating category table.\n" );
 754         }
 755
 756         protected function doPopulateParentId() {
 757                 if ( !$this->updateRowExists( 'populate rev_parent_id' ) ) {
 758                         $this->output(
 759                                 "Populating rev_parent_id fields, printing progress markers. For large\n" .
 760                                 "databases, you may want to hit Ctrl-C and do this manually with\n" .
 761                                 "maintenance/populateParentId.php.\n" );
 762
 763                         $task = $this->maintenance->runChild( 'PopulateParentId' );
 764                         $task->execute();
 765                 }
 766         }
 767
 768         protected function doMaybeProfilingMemoryUpdate() {
 769                 if ( !$this->db->tableExists( 'profiling', __METHOD__ ) ) {
 770                         // Simply ignore
 771                 } elseif ( $this->db->fieldExists( 'profiling', 'pf_memory', __METHOD__ ) ) {
 772                         $this->output( "...profiling table has pf_memory field.\n" );
 773                 } else {
 774                         $this->output( "Adding pf_memory field to table profiling..." );
 775                         $this->applyPatch( 'patch-profiling-memory.sql' );
 776                         $this->output( "done.\n" );
 777                 }
 778         }
 779
 780         protected function doFilearchiveIndicesUpdate() {
 781                 $info = $this->db->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 782                 if ( !$info ) {
 783                         $this->output( "Updating filearchive indices..." );
 784                         $this->applyPatch( 'patch-filearchive-user-index.sql' );
 785                         $this->output( "done.\n" );
 786                 }
 787         }
 788
 789         protected function doUniquePlTlIl() {
 790                 $info = $this->db->indexInfo( 'pagelinks', 'pl_namespace' );
 791                 if ( is_array( $info ) && !$info[0]->Non_unique ) {
 792                         $this->output( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
 793                         return;
 794                 }
 795
 796                 $this->output( "Making pl_namespace, tl_namespace and il_to indices UNIQUE... " );
 797                 $this->applyPatch( 'patch-pl-tl-il-unique.sql' );
 798                 $this->output( "done.\n" );
 799         }
 800
 801         protected function renameEuWikiId() {
 802                 if ( $this->db->fieldExists( 'external_user', 'eu_local_id', __METHOD__ ) ) {
 803                         $this->output( "...eu_wiki_id already renamed to eu_local_id.\n" );
 804                         return;
 805                 }
 806
 807                 $this->output( "Renaming eu_wiki_id -> eu_local_id... " );
 808                 $this->applyPatch( 'patch-eu_local_id.sql' );
 809                 $this->output( "done.\n" );
 810         }
 811
 812         protected function doUpdateMimeMinorField() {
 813                 if ( $this->updateRowExists( 'mime_minor_length' ) ) {
 814                         $this->output( "...*_mime_minor fields are already long enough.\n" );
 815                         return;
 816                 }
 817
 818                 $this->output( "Altering all *_mime_minor fields to 100 bytes in size ... " );
 819                 $this->applyPatch( 'patch-mime_minor_length.sql' );
 820                 $this->output( "done.\n" );
 821         }
 822
 823         protected function doClFieldsUpdate() {
 824                 if ( $this->updateRowExists( 'cl_fields_update' ) ) {
 825                         $this->output( "...categorylinks up-to-date.\n" );
 826                         return;
 827                 }
 828
 829                 $this->output( 'Updating categorylinks (again)...' );
 830                 $this->applyPatch( 'patch-categorylinks-better-collation2.sql' );
 831                 $this->output( "done.\n" );
 832         }
 833
 834         protected function doLangLinksLengthUpdate() {
 835                 $langlinks = $this->db->tableName( 'langlinks' );
 836                 $res = $this->db->query( "SHOW COLUMNS FROM $langlinks LIKE 'll_lang'" );
 837                 $row = $this->db->fetchObject( $res );
 838
 839                 if ( $row && $row->Type == "varbinary(10)" ) {
 840                         $this->output( 'Updating length of ll_lang in langlinks...' );
 841                         $this->applyPatch( 'patch-langlinks-ll_lang-20.sql' );
 842                         $this->output( "done.\n" );
 843                 } else {
 844                         $this->output( "...ll_lang is up-to-date.\n" );
 845                 }
 846         }
 847
 848         protected function doUserNewTalkTimestampNotNull() {
 849                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_last_timestamp' );
 850                 if ( $info->isNullable() ) {
 851                         $this->output( "...user_last_timestamp is already nullable.\n" );
 852                         return;
 853                 }
 854
 855                 $this->output( "Making user_last_timestamp nullable... " );
 856                 $this->applyPatch( 'patch-user-newtalk-timestamp-null.sql' );
 857                 $this->output( "done.\n" );
 858         }
 859 }