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                         array( 'addIndex', 'revision', 'page_user_timestamp', 'patch-revision-user-page-index.sql' ),
 199                         array( 'addField', 'ipblocks',      'ipb_parent_block_id',           'patch-ipb-parent-block-id.sql' ),
 200                         array( 'addIndex', 'ipblocks',      'ipb_parent_block_id',           'patch-ipb-parent-block-id-index.sql' ),
 201                 );
 202         }
 203
 204         /**
 205          * 1.4 betas were missing the 'binary' marker from logging.log_title,
 206          * which causes a collation mismatch error on joins in MySQL 4.1.
 207          *
 208          * @param $table String: table name
 209          * @param $field String: field name to check
 210          * @param $patchFile String: path to the patch to correct the field
 211          */
 212         protected function checkBin( $table, $field, $patchFile ) {
 213                 $tableName = $this->db->tableName( $table );
 214                 $res = $this->db->query( "SELECT $field FROM $tableName LIMIT 0", __METHOD__ );
 215                 $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
 216
 217                 if ( in_array( 'binary', $flags ) ) {
 218                         $this->output( "...$table table has correct $field encoding.\n" );
 219                 } else {
 220                         $this->output( "Fixing $field encoding on $table table... " );
 221                         $this->applyPatch( $patchFile );
 222                         $this->output( "done.\n" );
 223                 }
 224         }
 225
 226         /**
 227          * Check whether an index contain a field
 228          *
 229          * @param $table String: table name
 230          * @param $index String: index name to check
 231          * @param $field String: field that should be in the index
 232          * @return Boolean
 233          */
 234         protected function indexHasField( $table, $index, $field ) {
 235                 $info = $this->db->indexInfo( $table, $index, __METHOD__ );
 236                 if ( $info ) {
 237                         foreach ( $info as $row ) {
 238                                 if ( $row->Column_name == $field ) {
 239                                         $this->output( "...index $index on table $table includes field $field.\n" );
 240                                         return true;
 241                                 }
 242                         }
 243                 }
 244                 $this->output( "...index $index on table $table has no field $field; added.\n" );
 245                 return false;
 246         }
 247
 248         /**
 249          * Check that interwiki table exists; if it doesn't source it
 250          */
 251         protected function doInterwikiUpdate() {
 252                 global $IP;
 253
 254                 if ( $this->db->tableExists( "interwiki", __METHOD__ ) ) {
 255                         $this->output( "...already have interwiki table\n" );
 256                         return;
 257                 }
 258
 259                 $this->output( 'Creating interwiki table...' );
 260                 $this->applyPatch( 'patch-interwiki.sql' );
 261                 $this->output( "done.\n" );
 262                 $this->output( 'Adding default interwiki definitions...' );
 263                 $this->applyPatch( "$IP/maintenance/interwiki.sql", true );
 264                 $this->output( "done.\n" );
 265         }
 266
 267         /**
 268          * Check that proper indexes are in place
 269          */
 270         protected function doIndexUpdate() {
 271                 $meta = $this->db->fieldInfo( 'recentchanges', 'rc_timestamp' );
 272                 if ( $meta === false ) {
 273                         throw new MWException( 'Missing rc_timestamp field of recentchanges table. Should not happen.' );
 274                 }
 275                 if ( $meta->isMultipleKey() ) {
 276                         $this->output( "...indexes seem up to 20031107 standards.\n" );
 277                         return;
 278                 }
 279
 280                 $this->output( "Updating indexes to 20031107..." );
 281                 $this->applyPatch( 'patch-indexes.sql', true );
 282                 $this->output( "done.\n" );
 283         }
 284
 285         protected function doOldLinksUpdate() {
 286                 $cl = $this->maintenance->runChild( 'ConvertLinks' );
 287                 $cl->execute();
 288         }
 289
 290         protected function doFixAncientImagelinks() {
 291                 $info = $this->db->fieldInfo( 'imagelinks', 'il_from' );
 292                 if ( !$info || $info->type() !== 'string' ) {
 293                         $this->output( "...il_from OK\n" );
 294                         return;
 295                 }
 296
 297                 $this->output( "Fixing ancient broken imagelinks table.\n" );
 298                 $this->output( "NOTE: you will have to run maintenance/refreshLinks.php after this.\n" );
 299                 $this->applyPatch( 'patch-fix-il_from.sql' );
 300                 $this->output( "done.\n" );
 301         }
 302
 303         /**
 304          * Check if we need to add talk page rows to the watchlist
 305          */
 306         function doWatchlistUpdate() {
 307                 $talk = $this->db->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', __METHOD__ );
 308                 $nontalk = $this->db->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', __METHOD__ );
 309                 if ( $talk == $nontalk ) {
 310                         $this->output( "...watchlist talk page rows already present.\n" );
 311                         return;
 312                 }
 313
 314                 $this->output( "Adding missing watchlist talk page rows... " );
 315                 $this->db->insertSelect( 'watchlist', 'watchlist',
 316                         array(
 317                                 'wl_user' => 'wl_user',
 318                                 'wl_namespace' => 'wl_namespace | 1',
 319                                 'wl_title' => 'wl_title',
 320                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 321                         ), array( 'NOT (wl_namespace & 1)' ), __METHOD__, 'IGNORE' );
 322                 $this->output( "done.\n" );
 323         }
 324
 325         function doSchemaRestructuring() {
 326                 if ( $this->db->tableExists( 'page', __METHOD__ ) ) {
 327                         $this->output( "...page table already exists.\n" );
 328                         return;
 329                 }
 330
 331                 $this->output( "...converting from cur/old to page/revision/text DB structure.\n" );
 332                 $this->output( wfTimestamp( TS_DB ) );
 333                 $this->output( "......checking for duplicate entries.\n" );
 334
 335                 list ( $cur, $old, $page, $revision, $text ) = $this->db->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 336
 337                 $rows = $this->db->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 338                                 FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", __METHOD__ );
 339
 340                 if ( $rows->numRows() > 0 ) {
 341                         $this->output( wfTimestamp( TS_DB ) );
 342                         $this->output( "......<b>Found duplicate entries</b>\n" );
 343                         $this->output( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 344                         $duplicate = array();
 345                         foreach ( $rows as $row ) {
 346                                 if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
 347                                         $duplicate[$row->cur_namespace] = array();
 348                                 }
 349                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 350                                 $this->output( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
 351                         }
 352                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 353                         $firstCond = true;
 354                         foreach ( $duplicate as $ns => $titles ) {
 355                                 if ( $firstCond ) {
 356                                         $firstCond = false;
 357                                 } else {
 358                                         $sql .= ' OR ';
 359                                 }
 360                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 361                                 $first = true;
 362                                 foreach ( $titles as $t ) {
 363                                         if ( $first ) {
 364                                                 $sql .= $this->db->addQuotes( $t );
 365                                                 $first = false;
 366                                         } else {
 367                                                 $sql .= ', ' . $this->db->addQuotes( $t );
 368                                         }
 369                                 }
 370                                 $sql .= ") ) \n";
 371                         }
 372                         # By sorting descending, the most recent entry will be the first in the list.
 373                         # All following entries will be deleted by the next while-loop.
 374                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 375
 376                         $rows = $this->db->query( $sql, __METHOD__ );
 377
 378                         $prev_title = $prev_namespace = false;
 379                         $deleteId = array();
 380
 381                         foreach ( $rows as $row ) {
 382                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 383                                         $deleteId[] = $row->cur_id;
 384                                 }
 385                                 $prev_title     = $row->cur_title;
 386                                 $prev_namespace = $row->cur_namespace;
 387                         }
 388                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
 389                         $this->db->query( $sql, __METHOD__ );
 390                         $this->output( wfTimestamp( TS_DB ) );
 391                         $this->output( "......<b>Deleted</b> " . $this->db->affectedRows() . " records.\n" );
 392                 }
 393
 394                 $this->output( wfTimestamp( TS_DB ) );
 395                 $this->output( "......Creating tables.\n" );
 396                 $this->db->query( "CREATE TABLE $page (
 397                         page_id int(8) unsigned NOT NULL auto_increment,
 398                         page_namespace int NOT NULL,
 399                         page_title varchar(255) binary NOT NULL,
 400                         page_restrictions tinyblob NOT NULL,
 401                         page_counter bigint(20) unsigned NOT NULL default '0',
 402                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 403                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 404                         page_random real unsigned NOT NULL,
 405                         page_touched char(14) binary NOT NULL default '',
 406                         page_latest int(8) unsigned NOT NULL,
 407                         page_len int(8) unsigned NOT NULL,
 408
 409                         PRIMARY KEY page_id (page_id),
 410                         UNIQUE INDEX name_title (page_namespace,page_title),
 411                         INDEX (page_random),
 412                         INDEX (page_len)
 413                         ) ENGINE=InnoDB", __METHOD__ );
 414                 $this->db->query( "CREATE TABLE $revision (
 415                         rev_id int(8) unsigned NOT NULL auto_increment,
 416                         rev_page int(8) unsigned NOT NULL,
 417                         rev_comment tinyblob NOT NULL,
 418                         rev_user int(5) unsigned NOT NULL default '0',
 419                         rev_user_text varchar(255) binary NOT NULL default '',
 420                         rev_timestamp char(14) binary NOT NULL default '',
 421                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 422                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 423                         rev_len int(8) unsigned,
 424                         rev_parent_id int(8) unsigned default NULL,
 425                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 426                         UNIQUE INDEX rev_id (rev_id),
 427                         INDEX rev_timestamp (rev_timestamp),
 428                         INDEX page_timestamp (rev_page,rev_timestamp),
 429                         INDEX user_timestamp (rev_user,rev_timestamp),
 430                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 431                         ) ENGINE=InnoDB", __METHOD__ );
 432
 433                 $this->output( wfTimestamp( TS_DB ) );
 434                 $this->output( "......Locking tables.\n" );
 435                 $this->db->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", __METHOD__ );
 436
 437                 $maxold = intval( $this->db->selectField( 'old', 'max(old_id)', '', __METHOD__ ) );
 438                 $this->output( wfTimestamp( TS_DB ) );
 439                 $this->output( "......maxold is {$maxold}\n" );
 440
 441                 $this->output( wfTimestamp( TS_DB ) );
 442                 global $wgLegacySchemaConversion;
 443                 if ( $wgLegacySchemaConversion ) {
 444                         // Create HistoryBlobCurStub entries.
 445                         // Text will be pulled from the leftover 'cur' table at runtime.
 446                         $this->output( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 447                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 448                         $cur_flags = "'object'";
 449                 } else {
 450                         // Copy all cur text in immediately: this may take longer but avoids
 451                         // having to keep an extra table around.
 452                         $this->output( "......Moving text from cur.\n" );
 453                         $cur_text = 'cur_text';
 454                         $cur_flags = "''";
 455                 }
 456                 $this->db->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
 457                                         old_timestamp, old_minor_edit, old_flags)
 458                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
 459                         FROM $cur", __METHOD__ );
 460
 461                 $this->output( wfTimestamp( TS_DB ) );
 462                 $this->output( "......Setting up revision table.\n" );
 463                 $this->db->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
 464                                 rev_minor_edit)
 465                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 466                                 old_timestamp, old_minor_edit
 467                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", __METHOD__ );
 468
 469                 $this->output( wfTimestamp( TS_DB ) );
 470                 $this->output( "......Setting up page table.\n" );
 471                 $this->db->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
 472                         page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
 473                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 474                                 cur_random, cur_touched, rev_id, LENGTH(cur_text)
 475                         FROM $cur,$revision
 476                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", __METHOD__ );
 477
 478                 $this->output( wfTimestamp( TS_DB ) );
 479                 $this->output( "......Unlocking tables.\n" );
 480                 $this->db->query( "UNLOCK TABLES", __METHOD__ );
 481
 482                 $this->output( wfTimestamp( TS_DB ) );
 483                 $this->output( "......Renaming old.\n" );
 484                 $this->db->query( "ALTER TABLE $old RENAME TO $text", __METHOD__ );
 485
 486                 $this->output( wfTimestamp( TS_DB ) );
 487                 $this->output( "...done.\n" );
 488         }
 489
 490         protected function doNamespaceSize() {
 491                 $tables = array(
 492                         'page'          => 'page',
 493                         'archive'       => 'ar',
 494                         'recentchanges' => 'rc',
 495                         'watchlist'     => 'wl',
 496                         'querycache'    => 'qc',
 497                         'logging'       => 'log',
 498                 );
 499                 foreach ( $tables as $table => $prefix ) {
 500                         $field = $prefix . '_namespace';
 501
 502                         $tablename = $this->db->tableName( $table );
 503                         $result = $this->db->query( "SHOW COLUMNS FROM $tablename LIKE '$field'", __METHOD__ );
 504                         $info = $this->db->fetchObject( $result );
 505
 506                         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 507                                 $this->output( "...$field is already a full int ($info->Type).\n" );
 508                         } else {
 509                                 $this->output( "Promoting $field from $info->Type to int... " );
 510                                 $this->db->query( "ALTER TABLE $tablename MODIFY $field int NOT NULL", __METHOD__ );
 511                                 $this->output( "done.\n" );
 512                         }
 513                 }
 514         }
 515
 516         protected function doPagelinksUpdate() {
 517                 if ( $this->db->tableExists( 'pagelinks', __METHOD__ ) ) {
 518                         $this->output( "...already have pagelinks table.\n" );
 519                         return;
 520                 }
 521
 522                 $this->output( "Converting links and brokenlinks tables to pagelinks... " );
 523                 $this->applyPatch( 'patch-pagelinks.sql' );
 524                 $this->output( "done.\n" );
 525
 526                 global $wgContLang;
 527                 foreach ( MWNamespace::getCanonicalNamespaces() as $ns => $name ) {
 528                         if ( $ns == 0 ) {
 529                                 continue;
 530                         }
 531
 532                         $this->output( "Cleaning up broken links for namespace $ns... " );
 533
 534                         $pagelinks = $this->db->tableName( 'pagelinks' );
 535                         $name = $wgContLang->getNsText( $ns );
 536                         $prefix = $this->db->strencode( $name );
 537                         $likeprefix = str_replace( '_', '\\_', $prefix );
 538
 539                         $sql = "UPDATE $pagelinks
 540                                            SET pl_namespace=$ns,
 541                                                    pl_title=TRIM(LEADING '$prefix:' FROM pl_title)
 542                                          WHERE pl_namespace=0
 543                                            AND pl_title LIKE '$likeprefix:%'";
 544
 545                         $this->db->query( $sql, __METHOD__ );
 546                         $this->output( "done.\n" );
 547                 }
 548         }
 549
 550         protected function doUserUniqueUpdate() {
 551                 $duper = new UserDupes( $this->db, array( $this, 'output' ) );
 552                 if ( $duper->hasUniqueIndex() ) {
 553                         $this->output( "...already have unique user_name index.\n" );
 554                         return;
 555                 }
 556
 557                 if ( !$duper->clearDupes() ) {
 558                         $this->output( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 559                 }
 560                 $this->output( "Adding unique index on user_name... " );
 561                 $this->applyPatch( 'patch-user_nameindex.sql' );
 562                 $this->output( "done.\n" );
 563         }
 564
 565         protected function doUserGroupsUpdate() {
 566                 if ( $this->db->tableExists( 'user_groups', __METHOD__ ) ) {
 567                         $info = $this->db->fieldInfo( 'user_groups', 'ug_group' );
 568                         if ( $info->type() == 'int' ) {
 569                                 $oldug = $this->db->tableName( 'user_groups' );
 570                                 $newug = $this->db->tableName( 'user_groups_bogus' );
 571                                 $this->output( "user_groups table exists but is in bogus intermediate format. Renaming to $newug... " );
 572                                 $this->db->query( "ALTER TABLE $oldug RENAME TO $newug", __METHOD__ );
 573                                 $this->output( "done.\n" );
 574
 575                                 $this->output( "Re-adding fresh user_groups table... " );
 576                                 $this->applyPatch( 'patch-user_groups.sql' );
 577                                 $this->output( "done.\n" );
 578
 579                                 $this->output( "***\n" );
 580                                 $this->output( "*** WARNING: You will need to manually fix up user permissions in the user_groups\n" );
 581                                 $this->output( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 582                                 $this->output( "***\n" );
 583                         } else {
 584                                 $this->output( "...user_groups table exists and is in current format.\n" );
 585                         }
 586                         return;
 587                 }
 588
 589                 $this->output( "Adding user_groups table... " );
 590                 $this->applyPatch( 'patch-user_groups.sql' );
 591                 $this->output( "done.\n" );
 592
 593                 if ( !$this->db->tableExists( 'user_rights', __METHOD__ ) ) {
 594                         if ( $this->db->fieldExists( 'user', 'user_rights', __METHOD__ ) ) {
 595                                 $this->output( "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion..." );
 596                                 $this->db->applyPatch( 'patch-user_rights.sql' );
 597                                 $this->output( "done.\n" );
 598                         } else {
 599                                 $this->output( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 600                                 $this->output( "*** You may need to manually configure some sysops by manipulating\n" );
 601                                 $this->output( "*** the user_groups table.\n" );
 602                                 return;
 603                         }
 604                 }
 605
 606                 $this->output( "Converting user_rights table to user_groups... " );
 607                 $result = $this->db->select( 'user_rights',
 608                         array( 'ur_user', 'ur_rights' ),
 609                         array( "ur_rights != ''" ),
 610                         __METHOD__ );
 611
 612                 foreach ( $result as $row ) {
 613                         $groups = array_unique(
 614                                 array_map( 'trim',
 615                                         explode( ',', $row->ur_rights ) ) );
 616
 617                         foreach ( $groups as $group ) {
 618                                 $this->db->insert( 'user_groups',
 619                                         array(
 620                                                 'ug_user'  => $row->ur_user,
 621                                                 'ug_group' => $group ),
 622                                         __METHOD__ );
 623                         }
 624                 }
 625                 $this->output( "done.\n" );
 626         }
 627
 628         /**
 629          * Make sure wl_notificationtimestamp can be NULL,
 630          * and update old broken items.
 631          */
 632         protected function doWatchlistNull() {
 633                 $info = $this->db->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 634                 if ( $info->isNullable() ) {
 635                         $this->output( "...wl_notificationtimestamp is already nullable.\n" );
 636                         return;
 637                 }
 638
 639                 $this->output( "Making wl_notificationtimestamp nullable... " );
 640                 $this->applyPatch( 'patch-watchlist-null.sql' );
 641                 $this->output( "done.\n" );
 642         }
 643
 644         /**
 645          * Set page_random field to a random value where it is equals to 0.
 646          *
 647          * @see bug 3946
 648          */
 649         protected function doPageRandomUpdate() {
 650                 $page = $this->db->tableName( 'page' );
 651                 $this->db->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", __METHOD__ );
 652                 $rows = $this->db->affectedRows();
 653
 654                 if( $rows ) {
 655                         $this->output( "Set page_random to a random value on $rows rows where it was set to 0\n" );
 656                 } else {
 657                         $this->output( "...no page_random rows needed to be set\n" );
 658                 }
 659         }
 660
 661         protected function doTemplatelinksUpdate() {
 662                 if ( $this->db->tableExists( 'templatelinks', __METHOD__ ) ) {
 663                         $this->output( "...templatelinks table already exists\n" );
 664                         return;
 665                 }
 666
 667                 $this->output( "Creating templatelinks table...\n" );
 668                 $this->applyPatch( 'patch-templatelinks.sql' );
 669                 $this->output( "Populating...\n" );
 670                 if ( wfGetLB()->getServerCount() > 1 ) {
 671                         // Slow, replication-friendly update
 672                         $res = $this->db->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
 673                                 array( 'pl_namespace' => NS_TEMPLATE ), __METHOD__ );
 674                         $count = 0;
 675                         foreach ( $res as $row ) {
 676                                 $count = ( $count + 1 ) % 100;
 677                                 if ( $count == 0 ) {
 678                                         wfWaitForSlaves();
 679                                 }
 680                                 $this->db->insert( 'templatelinks',
 681                                         array(
 682                                                 'tl_from' => $row->pl_from,
 683                                                 'tl_namespace' => $row->pl_namespace,
 684                                                 'tl_title' => $row->pl_title,
 685                                         ), __METHOD__
 686                                 );
 687
 688                         }
 689                 } else {
 690                         // Fast update
 691                         $this->db->insertSelect( 'templatelinks', 'pagelinks',
 692                                 array(
 693                                         'tl_from' => 'pl_from',
 694                                         'tl_namespace' => 'pl_namespace',
 695                                         'tl_title' => 'pl_title'
 696                                 ), array(
 697                                         'pl_namespace' => 10
 698                                 ), __METHOD__
 699                         );
 700                 }
 701                 $this->output( "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n" );
 702         }
 703
 704         protected function doBacklinkingIndicesUpdate() {
 705                 if ( !$this->indexHasField( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 706                         !$this->indexHasField( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 707                         !$this->indexHasField( 'imagelinks', 'il_to', 'il_from' ) )
 708                 {
 709                         $this->applyPatch( 'patch-backlinkindexes.sql' );
 710                         $this->output( "...backlinking indices updated\n" );
 711                 }
 712         }
 713
 714         /**
 715          * Adding page_restrictions table, obsoleting page.page_restrictions.
 716          * Migrating old restrictions to new table
 717          * -- Andrew Garrett, January 2007.
 718          */
 719         protected function doRestrictionsUpdate() {
 720                 if ( $this->db->tableExists( 'page_restrictions', __METHOD__ ) ) {
 721                         $this->output( "...page_restrictions table already exists.\n" );
 722                         return;
 723                 }
 724
 725                 $this->output( "Creating page_restrictions table..." );
 726                 $this->applyPatch( 'patch-page_restrictions.sql' );
 727                 $this->applyPatch( 'patch-page_restrictions_sortkey.sql' );
 728                 $this->output( "done.\n" );
 729
 730                 $this->output( "Migrating old restrictions to new table...\n" );
 731                 $task = $this->maintenance->runChild( 'UpdateRestrictions' );
 732                 $task->execute();
 733         }
 734
 735         protected function doCategorylinksIndicesUpdate() {
 736                 if ( !$this->indexHasField( 'categorylinks', 'cl_sortkey', 'cl_from' ) ) {
 737                         $this->applyPatch( 'patch-categorylinksindex.sql' );
 738                         $this->output( "...categorylinks indices updated\n" );
 739                 }
 740         }
 741
 742         protected function doCategoryPopulation() {
 743                 if ( $this->updateRowExists( 'populate category' ) ) {
 744                         $this->output( "...category table already populated.\n" );
 745                         return;
 746                 }
 747
 748                 $this->output(
 749                         "Populating category table, printing progress markers. " .
 750                         "For large databases, you\n" .
 751                         "may want to hit Ctrl-C and do this manually with maintenance/\n" .
 752                         "populateCategory.php.\n"
 753                 );
 754                 $task = $this->maintenance->runChild( 'PopulateCategory' );
 755                 $task->execute();
 756                 $this->output( "Done populating category table.\n" );
 757         }
 758
 759         protected function doPopulateParentId() {
 760                 if ( !$this->updateRowExists( 'populate rev_parent_id' ) ) {
 761                         $this->output(
 762                                 "Populating rev_parent_id fields, printing progress markers. For large\n" .
 763                                 "databases, you may want to hit Ctrl-C and do this manually with\n" .
 764                                 "maintenance/populateParentId.php.\n" );
 765
 766                         $task = $this->maintenance->runChild( 'PopulateParentId' );
 767                         $task->execute();
 768                 }
 769         }
 770
 771         protected function doMaybeProfilingMemoryUpdate() {
 772                 if ( !$this->db->tableExists( 'profiling', __METHOD__ ) ) {
 773                         // Simply ignore
 774                 } elseif ( $this->db->fieldExists( 'profiling', 'pf_memory', __METHOD__ ) ) {
 775                         $this->output( "...profiling table has pf_memory field.\n" );
 776                 } else {
 777                         $this->output( "Adding pf_memory field to table profiling..." );
 778                         $this->applyPatch( 'patch-profiling-memory.sql' );
 779                         $this->output( "done.\n" );
 780                 }
 781         }
 782
 783         protected function doFilearchiveIndicesUpdate() {
 784                 $info = $this->db->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 785                 if ( !$info ) {
 786                         $this->output( "Updating filearchive indices..." );
 787                         $this->applyPatch( 'patch-filearchive-user-index.sql' );
 788                         $this->output( "done.\n" );
 789                 }
 790         }
 791
 792         protected function doUniquePlTlIl() {
 793                 $info = $this->db->indexInfo( 'pagelinks', 'pl_namespace' );
 794                 if ( is_array( $info ) && !$info[0]->Non_unique ) {
 795                         $this->output( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
 796                         return;
 797                 }
 798
 799                 $this->output( "Making pl_namespace, tl_namespace and il_to indices UNIQUE... " );
 800                 $this->applyPatch( 'patch-pl-tl-il-unique.sql' );
 801                 $this->output( "done.\n" );
 802         }
 803
 804         protected function renameEuWikiId() {
 805                 if ( $this->db->fieldExists( 'external_user', 'eu_local_id', __METHOD__ ) ) {
 806                         $this->output( "...eu_wiki_id already renamed to eu_local_id.\n" );
 807                         return;
 808                 }
 809
 810                 $this->output( "Renaming eu_wiki_id -> eu_local_id... " );
 811                 $this->applyPatch( 'patch-eu_local_id.sql' );
 812                 $this->output( "done.\n" );
 813         }
 814
 815         protected function doUpdateMimeMinorField() {
 816                 if ( $this->updateRowExists( 'mime_minor_length' ) ) {
 817                         $this->output( "...*_mime_minor fields are already long enough.\n" );
 818                         return;
 819                 }
 820
 821                 $this->output( "Altering all *_mime_minor fields to 100 bytes in size ... " );
 822                 $this->applyPatch( 'patch-mime_minor_length.sql' );
 823                 $this->output( "done.\n" );
 824         }
 825
 826         protected function doClFieldsUpdate() {
 827                 if ( $this->updateRowExists( 'cl_fields_update' ) ) {
 828                         $this->output( "...categorylinks up-to-date.\n" );
 829                         return;
 830                 }
 831
 832                 $this->output( 'Updating categorylinks (again)...' );
 833                 $this->applyPatch( 'patch-categorylinks-better-collation2.sql' );
 834                 $this->output( "done.\n" );
 835         }
 836
 837         protected function doLangLinksLengthUpdate() {
 838                 $langlinks = $this->db->tableName( 'langlinks' );
 839                 $res = $this->db->query( "SHOW COLUMNS FROM $langlinks LIKE 'll_lang'" );
 840                 $row = $this->db->fetchObject( $res );
 841
 842                 if ( $row && $row->Type == "varbinary(10)" ) {
 843                         $this->output( 'Updating length of ll_lang in langlinks...' );
 844                         $this->applyPatch( 'patch-langlinks-ll_lang-20.sql' );
 845                         $this->output( "done.\n" );
 846                 } else {
 847                         $this->output( "...ll_lang is up-to-date.\n" );
 848                 }
 849         }
 850
 851         protected function doUserNewTalkTimestampNotNull() {
 852                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_last_timestamp' );
 853                 if ( $info->isNullable() ) {
 854                         $this->output( "...user_last_timestamp is already nullable.\n" );
 855                         return;
 856                 }
 857
 858                 $this->output( "Making user_last_timestamp nullable... " );
 859                 $this->applyPatch( 'patch-user-newtalk-timestamp-null.sql' );
 860                 $this->output( "done.\n" );
 861         }
 862 }