includes/installer/MysqlUpdater.php

   1 <?php
   2 /**
   3  * MySQL-specific updater.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Deployment
  22  */
  23
  24 /**
  25  * Mysql update list and mysql-specific update functions.
  26  *
  27  * @ingroup Deployment
  28  * @since 1.17
  29  */
  30 class MysqlUpdater extends DatabaseUpdater {
  31         protected function getCoreUpdateList() {
  32                 return [
  33                         [ 'disableContentHandlerUseDB' ],
  34
  35                         // 1.2
  36                         [ 'addField', 'ipblocks', 'ipb_id', 'patch-ipblocks.sql' ],
  37                         [ 'addField', 'ipblocks', 'ipb_expiry', 'patch-ipb_expiry.sql' ],
  38                         [ 'doInterwikiUpdate' ],
  39                         [ 'doIndexUpdate' ],
  40                         [ 'addField', 'recentchanges', 'rc_type', 'patch-rc_type.sql' ],
  41                         [ 'addIndex', 'recentchanges', 'new_name_timestamp', 'patch-rc-newindex.sql' ],
  42
  43                         // 1.3
  44                         [ 'addField', 'user', 'user_real_name', 'patch-user-realname.sql' ],
  45                         [ 'addTable', 'querycache', 'patch-querycache.sql' ],
  46                         [ 'addTable', 'objectcache', 'patch-objectcache.sql' ],
  47                         [ 'addTable', 'categorylinks', 'patch-categorylinks.sql' ],
  48                         [ 'doOldLinksUpdate' ],
  49                         [ 'doFixAncientImagelinks' ],
  50                         [ 'addField', 'recentchanges', 'rc_ip', 'patch-rc_ip.sql' ],
  51
  52                         // 1.4
  53                         [ 'addIndex', 'image', 'PRIMARY', 'patch-image_name_primary.sql' ],
  54                         [ 'addField', 'recentchanges', 'rc_id', 'patch-rc_id.sql' ],
  55                         [ 'addField', 'recentchanges', 'rc_patrolled', 'patch-rc-patrol.sql' ],
  56                         [ 'addTable', 'logging', 'patch-logging.sql' ],
  57                         [ 'addField', 'user', 'user_token', 'patch-user_token.sql' ],
  58                         [ 'addField', 'watchlist', 'wl_notificationtimestamp', 'patch-email-notification.sql' ],
  59                         [ 'doWatchlistUpdate' ],
  60                         [ 'dropField', 'user', 'user_emailauthenticationtimestamp',
  61                                 'patch-email-authentication.sql' ],
  62
  63                         // 1.5
  64                         [ 'doSchemaRestructuring' ],
  65                         [ 'addField', 'logging', 'log_params', 'patch-log_params.sql' ],
  66                         [ 'checkBin', 'logging', 'log_title', 'patch-logging-title.sql', ],
  67                         [ 'addField', 'archive', 'ar_rev_id', 'patch-archive-rev_id.sql' ],
  68                         [ 'addField', 'page', 'page_len', 'patch-page_len.sql' ],
  69                         [ 'dropField', 'revision', 'inverse_timestamp', 'patch-inverse_timestamp.sql' ],
  70                         [ 'addField', 'revision', 'rev_text_id', 'patch-rev_text_id.sql' ],
  71                         [ 'addField', 'revision', 'rev_deleted', 'patch-rev_deleted.sql' ],
  72                         [ 'addField', 'image', 'img_width', 'patch-img_width.sql' ],
  73                         [ 'addField', 'image', 'img_metadata', 'patch-img_metadata.sql' ],
  74                         [ 'addField', 'user', 'user_email_token', 'patch-user_email_token.sql' ],
  75                         [ 'addField', 'archive', 'ar_text_id', 'patch-archive-text_id.sql' ],
  76                         [ 'doNamespaceSize' ],
  77                         [ 'addField', 'image', 'img_media_type', 'patch-img_media_type.sql' ],
  78                         [ 'doPagelinksUpdate' ],
  79                         [ 'dropField', 'image', 'img_type', 'patch-drop_img_type.sql' ],
  80                         [ 'doUserUniqueUpdate' ],
  81                         [ 'doUserGroupsUpdate' ],
  82                         [ 'addField', 'site_stats', 'ss_total_pages', 'patch-ss_total_articles.sql' ],
  83                         [ 'addTable', 'user_newtalk', 'patch-usernewtalk2.sql' ],
  84                         [ 'addTable', 'transcache', 'patch-transcache.sql' ],
  85                         [ 'addField', 'interwiki', 'iw_trans', 'patch-interwiki-trans.sql' ],
  86
  87                         // 1.6
  88                         [ 'doWatchlistNull' ],
  89                         [ 'addIndex', 'logging', 'times', 'patch-logging-times-index.sql' ],
  90                         [ 'addField', 'ipblocks', 'ipb_range_start', 'patch-ipb_range_start.sql' ],
  91                         [ 'doPageRandomUpdate' ],
  92                         [ 'addField', 'user', 'user_registration', 'patch-user_registration.sql' ],
  93                         [ 'doTemplatelinksUpdate' ],
  94                         [ 'addTable', 'externallinks', 'patch-externallinks.sql' ],
  95                         [ 'addTable', 'job', 'patch-job.sql' ],
  96                         [ 'addField', 'site_stats', 'ss_images', 'patch-ss_images.sql' ],
  97                         [ 'addTable', 'langlinks', 'patch-langlinks.sql' ],
  98                         [ 'addTable', 'querycache_info', 'patch-querycacheinfo.sql' ],
  99                         [ 'addTable', 'filearchive', 'patch-filearchive.sql' ],
 100                         [ 'addField', 'ipblocks', 'ipb_anon_only', 'patch-ipb_anon_only.sql' ],
 101                         [ 'addIndex', 'recentchanges', 'rc_ns_usertext', 'patch-recentchanges-utindex.sql' ],
 102                         [ 'addIndex', 'recentchanges', 'rc_user_text', 'patch-rc_user_text-index.sql' ],
 103
 104                         // 1.9
 105                         [ 'addField', 'user', 'user_newpass_time', 'patch-user_newpass_time.sql' ],
 106                         [ 'addTable', 'redirect', 'patch-redirect.sql' ],
 107                         [ 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ],
 108                         [ 'addField', 'ipblocks', 'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ],
 109                         [ 'doBacklinkingIndicesUpdate' ],
 110                         [ 'addField', 'recentchanges', 'rc_old_len', 'patch-rc_len.sql' ],
 111                         [ 'addField', 'user', 'user_editcount', 'patch-user_editcount.sql' ],
 112
 113                         // 1.10
 114                         [ 'doRestrictionsUpdate' ],
 115                         [ 'addField', 'logging', 'log_id', 'patch-log_id.sql' ],
 116                         [ 'addField', 'revision', 'rev_parent_id', 'patch-rev_parent_id.sql' ],
 117                         [ 'addField', 'page_restrictions', 'pr_id', 'patch-page_restrictions_sortkey.sql' ],
 118                         [ 'addField', 'revision', 'rev_len', 'patch-rev_len.sql' ],
 119                         [ 'addField', 'recentchanges', 'rc_deleted', 'patch-rc_deleted.sql' ],
 120                         [ 'addField', 'logging', 'log_deleted', 'patch-log_deleted.sql' ],
 121                         [ 'addField', 'archive', 'ar_deleted', 'patch-ar_deleted.sql' ],
 122                         [ 'addField', 'ipblocks', 'ipb_deleted', 'patch-ipb_deleted.sql' ],
 123                         [ 'addField', 'filearchive', 'fa_deleted', 'patch-fa_deleted.sql' ],
 124                         [ 'addField', 'archive', 'ar_len', 'patch-ar_len.sql' ],
 125
 126                         // 1.11
 127                         [ 'addField', 'ipblocks', 'ipb_block_email', 'patch-ipb_emailban.sql' ],
 128                         [ 'doCategorylinksIndicesUpdate' ],
 129                         [ 'addField', 'oldimage', 'oi_metadata', 'patch-oi_metadata.sql' ],
 130                         [ 'addIndex', 'archive', 'usertext_timestamp', 'patch-archive-user-index.sql' ],
 131                         [ 'addIndex', 'image', 'img_usertext_timestamp', 'patch-image-user-index.sql' ],
 132                         [ 'addIndex', 'oldimage', 'oi_usertext_timestamp', 'patch-oldimage-user-index.sql' ],
 133                         [ 'addField', 'archive', 'ar_page_id', 'patch-archive-page_id.sql' ],
 134                         [ 'addField', 'image', 'img_sha1', 'patch-img_sha1.sql' ],
 135
 136                         // 1.12
 137                         [ 'addTable', 'protected_titles', 'patch-protected_titles.sql' ],
 138
 139                         // 1.13
 140                         [ 'addField', 'ipblocks', 'ipb_by_text', 'patch-ipb_by_text.sql' ],
 141                         [ 'addTable', 'page_props', 'patch-page_props.sql' ],
 142                         [ 'addTable', 'updatelog', 'patch-updatelog.sql' ],
 143                         [ 'addTable', 'category', 'patch-category.sql' ],
 144                         [ 'doCategoryPopulation' ],
 145                         [ 'addField', 'archive', 'ar_parent_id', 'patch-ar_parent_id.sql' ],
 146                         [ 'addField', 'user_newtalk', 'user_last_timestamp', 'patch-user_last_timestamp.sql' ],
 147                         [ 'doPopulateParentId' ],
 148                         [ 'checkBin', 'protected_titles', 'pt_title', 'patch-pt_title-encoding.sql', ],
 149                         [ 'doMaybeProfilingMemoryUpdate' ],
 150                         [ 'doFilearchiveIndicesUpdate' ],
 151
 152                         // 1.14
 153                         [ 'addField', 'site_stats', 'ss_active_users', 'patch-ss_active_users.sql' ],
 154                         [ 'doActiveUsersInit' ],
 155                         [ 'addField', 'ipblocks', 'ipb_allow_usertalk', 'patch-ipb_allow_usertalk.sql' ],
 156
 157                         // 1.15
 158                         [ 'doUniquePlTlIl' ],
 159                         [ 'addTable', 'change_tag', 'patch-change_tag.sql' ],
 160                         [ 'addTable', 'tag_summary', 'patch-tag_summary.sql' ],
 161                         [ 'addTable', 'valid_tag', 'patch-valid_tag.sql' ],
 162
 163                         // 1.16
 164                         [ 'addTable', 'user_properties', 'patch-user_properties.sql' ],
 165                         [ 'addTable', 'log_search', 'patch-log_search.sql' ],
 166                         [ 'addField', 'logging', 'log_user_text', 'patch-log_user_text.sql' ],
 167                         # listed separately from the previous update because 1.16 was released without this update
 168                         [ 'doLogUsertextPopulation' ],
 169                         [ 'doLogSearchPopulation' ],
 170                         [ 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ],
 171                         [ 'addIndex', 'log_search', 'ls_field_val', 'patch-log_search-rename-index.sql' ],
 172                         [ 'addIndex', 'change_tag', 'change_tag_rc_tag', 'patch-change_tag-indexes.sql' ],
 173                         [ 'addField', 'redirect', 'rd_interwiki', 'patch-rd_interwiki.sql' ],
 174                         [ 'doUpdateTranscacheField' ],
 175                         [ 'doUpdateMimeMinorField' ],
 176
 177                         // 1.17
 178                         [ 'addTable', 'iwlinks', 'patch-iwlinks.sql' ],
 179                         [ 'addIndex', 'iwlinks', 'iwl_prefix_title_from', 'patch-rename-iwl_prefix.sql' ],
 180                         [ 'addField', 'updatelog', 'ul_value', 'patch-ul_value.sql' ],
 181                         [ 'addField', 'interwiki', 'iw_api', 'patch-iw_api_and_wikiid.sql' ],
 182                         [ 'dropIndex', 'iwlinks', 'iwl_prefix', 'patch-kill-iwl_prefix.sql' ],
 183                         [ 'addField', 'categorylinks', 'cl_collation', 'patch-categorylinks-better-collation.sql' ],
 184                         [ 'doClFieldsUpdate' ],
 185                         [ 'addTable', 'module_deps', 'patch-module_deps.sql' ],
 186                         [ 'dropIndex', 'archive', 'ar_page_revid', 'patch-archive_kill_ar_page_revid.sql' ],
 187                         [ 'addIndex', 'archive', 'ar_revid', 'patch-archive_ar_revid.sql' ],
 188                         [ 'doLangLinksLengthUpdate' ],
 189
 190                         // 1.18
 191                         [ 'doUserNewTalkTimestampNotNull' ],
 192                         [ 'addIndex', 'user', 'user_email', 'patch-user_email_index.sql' ],
 193                         [ 'modifyField', 'user_properties', 'up_property', 'patch-up_property.sql' ],
 194                         [ 'addTable', 'uploadstash', 'patch-uploadstash.sql' ],
 195                         [ 'addTable', 'user_former_groups', 'patch-user_former_groups.sql' ],
 196
 197                         // 1.19
 198                         [ 'addIndex', 'logging', 'type_action', 'patch-logging-type-action-index.sql' ],
 199                         [ 'addField', 'revision', 'rev_sha1', 'patch-rev_sha1.sql' ],
 200                         [ 'doMigrateUserOptions' ],
 201                         [ 'dropField', 'user', 'user_options', 'patch-drop-user_options.sql' ],
 202                         [ 'addField', 'archive', 'ar_sha1', 'patch-ar_sha1.sql' ],
 203                         [ 'addIndex', 'page', 'page_redirect_namespace_len',
 204                                 'patch-page_redirect_namespace_len.sql' ],
 205                         [ 'addField', 'uploadstash', 'us_chunk_inx', 'patch-uploadstash_chunk.sql' ],
 206                         [ 'addfield', 'job', 'job_timestamp', 'patch-jobs-add-timestamp.sql' ],
 207
 208                         // 1.20
 209                         [ 'addIndex', 'revision', 'page_user_timestamp', 'patch-revision-user-page-index.sql' ],
 210                         [ 'addField', 'ipblocks', 'ipb_parent_block_id', 'patch-ipb-parent-block-id.sql' ],
 211                         [ 'addIndex', 'ipblocks', 'ipb_parent_block_id', 'patch-ipb-parent-block-id-index.sql' ],
 212                         [ 'dropField', 'category', 'cat_hidden', 'patch-cat_hidden.sql' ],
 213
 214                         // 1.21
 215                         [ 'addField', 'revision', 'rev_content_format', 'patch-revision-rev_content_format.sql' ],
 216                         [ 'addField', 'revision', 'rev_content_model', 'patch-revision-rev_content_model.sql' ],
 217                         [ 'addField', 'archive', 'ar_content_format', 'patch-archive-ar_content_format.sql' ],
 218                         [ 'addField', 'archive', 'ar_content_model', 'patch-archive-ar_content_model.sql' ],
 219                         [ 'addField', 'page', 'page_content_model', 'patch-page-page_content_model.sql' ],
 220                         [ 'enableContentHandlerUseDB' ],
 221                         [ 'dropField', 'site_stats', 'ss_admins', 'patch-drop-ss_admins.sql' ],
 222                         [ 'dropField', 'recentchanges', 'rc_moved_to_title', 'patch-rc_moved.sql' ],
 223                         [ 'addTable', 'sites', 'patch-sites.sql' ],
 224                         [ 'addField', 'filearchive', 'fa_sha1', 'patch-fa_sha1.sql' ],
 225                         [ 'addField', 'job', 'job_token', 'patch-job_token.sql' ],
 226                         [ 'addField', 'job', 'job_attempts', 'patch-job_attempts.sql' ],
 227                         [ 'doEnableProfiling' ],
 228                         [ 'addField', 'uploadstash', 'us_props', 'patch-uploadstash-us_props.sql' ],
 229                         [ 'modifyField', 'user_groups', 'ug_group', 'patch-ug_group-length-increase-255.sql' ],
 230                         [ 'modifyField', 'user_former_groups', 'ufg_group',
 231                                 'patch-ufg_group-length-increase-255.sql' ],
 232                         [ 'addIndex', 'page_props', 'pp_propname_page',
 233                                 'patch-page_props-propname-page-index.sql' ],
 234                         [ 'addIndex', 'image', 'img_media_mime', 'patch-img_media_mime-index.sql' ],
 235
 236                         // 1.22
 237                         [ 'doIwlinksIndexNonUnique' ],
 238                         [ 'addIndex', 'iwlinks', 'iwl_prefix_from_title',
 239                                 'patch-iwlinks-from-title-index.sql' ],
 240                         [ 'addField', 'archive', 'ar_id', 'patch-archive-ar_id.sql' ],
 241                         [ 'addField', 'externallinks', 'el_id', 'patch-externallinks-el_id.sql' ],
 242
 243                         // 1.23
 244                         [ 'addField', 'recentchanges', 'rc_source', 'patch-rc_source.sql' ],
 245                         [ 'addIndex', 'logging', 'log_user_text_type_time',
 246                                 'patch-logging_user_text_type_time_index.sql' ],
 247                         [ 'addIndex', 'logging', 'log_user_text_time', 'patch-logging_user_text_time_index.sql' ],
 248                         [ 'addField', 'page', 'page_links_updated', 'patch-page_links_updated.sql' ],
 249                         [ 'addField', 'user', 'user_password_expires', 'patch-user_password_expire.sql' ],
 250
 251                         // 1.24
 252                         [ 'addField', 'page_props', 'pp_sortkey', 'patch-pp_sortkey.sql' ],
 253                         [ 'dropField', 'recentchanges', 'rc_cur_time', 'patch-drop-rc_cur_time.sql' ],
 254                         [ 'addIndex', 'watchlist', 'wl_user_notificationtimestamp',
 255                                 'patch-watchlist-user-notificationtimestamp-index.sql' ],
 256                         [ 'addField', 'page', 'page_lang', 'patch-page_lang.sql' ],
 257                         [ 'addField', 'pagelinks', 'pl_from_namespace', 'patch-pl_from_namespace.sql' ],
 258                         [ 'addField', 'templatelinks', 'tl_from_namespace', 'patch-tl_from_namespace.sql' ],
 259                         [ 'addField', 'imagelinks', 'il_from_namespace', 'patch-il_from_namespace.sql' ],
 260                         [ 'modifyField', 'image', 'img_major_mime',
 261                                 'patch-img_major_mime-chemical.sql' ],
 262                         [ 'modifyField', 'oldimage', 'oi_major_mime',
 263                                 'patch-oi_major_mime-chemical.sql' ],
 264                         [ 'modifyField', 'filearchive', 'fa_major_mime',
 265                                 'patch-fa_major_mime-chemical.sql' ],
 266
 267                         // 1.25
 268                         [ 'doUserNewTalkUseridUnsigned' ],
 269                         // note this patch covers other _comment and _description fields too
 270                         [ 'modifyField', 'recentchanges', 'rc_comment', 'patch-editsummary-length.sql' ],
 271
 272                         // 1.26
 273                         [ 'dropTable', 'hitcounter' ],
 274                         [ 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ],
 275                         [ 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ],
 276
 277                         // 1.27
 278                         [ 'dropTable', 'msg_resource_links' ],
 279                         [ 'dropTable', 'msg_resource' ],
 280                         [ 'addTable', 'bot_passwords', 'patch-bot_passwords.sql' ],
 281                         [ 'addField', 'watchlist', 'wl_id', 'patch-watchlist-wl_id.sql' ],
 282                         [ 'dropIndex', 'categorylinks', 'cl_collation', 'patch-kill-cl_collation_index.sql' ],
 283                         [ 'addIndex', 'categorylinks', 'cl_collation_ext',
 284                                 'patch-add-cl_collation_ext_index.sql' ],
 285                         [ 'doCollationUpdate' ],
 286                 ];
 287         }
 288
 289         /**
 290          * 1.4 betas were missing the 'binary' marker from logging.log_title,
 291          * which causes a collation mismatch error on joins in MySQL 4.1.
 292          *
 293          * @param string $table Table name
 294          * @param string $field Field name to check
 295          * @param string $patchFile Path to the patch to correct the field
 296          * @return bool
 297          */
 298         protected function checkBin( $table, $field, $patchFile ) {
 299                 if ( !$this->doTable( $table ) ) {
 300                         return true;
 301                 }
 302
 303                 /** @var MySQLField $fieldInfo */
 304                 $fieldInfo = $this->db->fieldInfo( $table, $field );
 305                 if ( $fieldInfo->isBinary() ) {
 306                         $this->output( "...$table table has correct $field encoding.\n" );
 307                 } else {
 308                         $this->applyPatch( $patchFile, false, "Fixing $field encoding on $table table" );
 309                 }
 310         }
 311
 312         /**
 313          * Check whether an index contain a field
 314          *
 315          * @param string $table Table name
 316          * @param string $index Index name to check
 317          * @param string $field Field that should be in the index
 318          * @return bool
 319          */
 320         protected function indexHasField( $table, $index, $field ) {
 321                 if ( !$this->doTable( $table ) ) {
 322                         return true;
 323                 }
 324
 325                 $info = $this->db->indexInfo( $table, $index, __METHOD__ );
 326                 if ( $info ) {
 327                         foreach ( $info as $row ) {
 328                                 if ( $row->Column_name == $field ) {
 329                                         $this->output( "...index $index on table $table includes field $field.\n" );
 330
 331                                         return true;
 332                                 }
 333                         }
 334                 }
 335                 $this->output( "...index $index on table $table has no field $field; added.\n" );
 336
 337                 return false;
 338         }
 339
 340         /**
 341          * Check that interwiki table exists; if it doesn't source it
 342          */
 343         protected function doInterwikiUpdate() {
 344                 global $IP;
 345
 346                 if ( !$this->doTable( 'interwiki' ) ) {
 347                         return true;
 348                 }
 349
 350                 if ( $this->db->tableExists( "interwiki", __METHOD__ ) ) {
 351                         $this->output( "...already have interwiki table\n" );
 352
 353                         return;
 354                 }
 355
 356                 $this->applyPatch( 'patch-interwiki.sql', false, 'Creating interwiki table' );
 357                 $this->applyPatch(
 358                         "$IP/maintenance/interwiki.sql",
 359                         true,
 360                         'Adding default interwiki definitions'
 361                 );
 362         }
 363
 364         /**
 365          * Check that proper indexes are in place
 366          */
 367         protected function doIndexUpdate() {
 368                 $meta = $this->db->fieldInfo( 'recentchanges', 'rc_timestamp' );
 369                 if ( $meta === false ) {
 370                         throw new MWException( 'Missing rc_timestamp field of recentchanges table. Should not happen.' );
 371                 }
 372                 if ( $meta->isMultipleKey() ) {
 373                         $this->output( "...indexes seem up to 20031107 standards.\n" );
 374
 375                         return;
 376                 }
 377
 378                 $this->applyPatch( 'patch-indexes.sql', true, "Updating indexes to 20031107" );
 379         }
 380
 381         protected function doOldLinksUpdate() {
 382                 $cl = $this->maintenance->runChild( 'ConvertLinks' );
 383                 $cl->execute();
 384         }
 385
 386         protected function doFixAncientImagelinks() {
 387                 $info = $this->db->fieldInfo( 'imagelinks', 'il_from' );
 388                 if ( !$info || $info->type() !== 'string' ) {
 389                         $this->output( "...il_from OK\n" );
 390
 391                         return;
 392                 }
 393
 394                 $applied = $this->applyPatch(
 395                         'patch-fix-il_from.sql',
 396                         false,
 397                         'Fixing ancient broken imagelinks table.'
 398                 );
 399
 400                 if ( $applied ) {
 401                         $this->output( "NOTE: you will have to run maintenance/refreshLinks.php after this." );
 402                 }
 403         }
 404
 405         /**
 406          * Check if we need to add talk page rows to the watchlist
 407          */
 408         function doWatchlistUpdate() {
 409                 $talk = $this->db->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', __METHOD__ );
 410                 $nontalk = $this->db->selectField(
 411                         'watchlist',
 412                         'count(*)',
 413                         'NOT (wl_namespace & 1)',
 414                         __METHOD__
 415                 );
 416                 if ( $talk == $nontalk ) {
 417                         $this->output( "...watchlist talk page rows already present.\n" );
 418
 419                         return;
 420                 }
 421
 422                 $this->output( "Adding missing watchlist talk page rows... " );
 423                 $this->db->insertSelect( 'watchlist', 'watchlist',
 424                         [
 425                                 'wl_user' => 'wl_user',
 426                                 'wl_namespace' => 'wl_namespace | 1',
 427                                 'wl_title' => 'wl_title',
 428                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 429                         ], [ 'NOT (wl_namespace & 1)' ], __METHOD__, 'IGNORE' );
 430                 $this->output( "done.\n" );
 431
 432                 $this->output( "Adding missing watchlist subject page rows... " );
 433                 $this->db->insertSelect( 'watchlist', 'watchlist',
 434                         [
 435                                 'wl_user' => 'wl_user',
 436                                 'wl_namespace' => 'wl_namespace & ~1',
 437                                 'wl_title' => 'wl_title',
 438                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 439                         ], [ 'wl_namespace & 1' ], __METHOD__, 'IGNORE' );
 440                 $this->output( "done.\n" );
 441         }
 442
 443         function doSchemaRestructuring() {
 444                 if ( $this->db->tableExists( 'page', __METHOD__ ) ) {
 445                         $this->output( "...page table already exists.\n" );
 446
 447                         return;
 448                 }
 449
 450                 $this->output( "...converting from cur/old to page/revision/text DB structure.\n" );
 451                 $this->output( wfTimestamp( TS_DB ) );
 452                 $this->output( "......checking for duplicate entries.\n" );
 453
 454                 list( $cur, $old, $page, $revision, $text ) = $this->db->tableNamesN(
 455                         'cur',
 456                         'old',
 457                         'page',
 458                         'revision',
 459                         'text'
 460                 );
 461
 462                 $rows = $this->db->query( "
 463                         SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 464                         FROM $cur
 465                         GROUP BY cur_title, cur_namespace
 466                         HAVING c>1",
 467                         __METHOD__
 468                 );
 469
 470                 if ( $rows->numRows() > 0 ) {
 471                         $this->output( wfTimestamp( TS_DB ) );
 472                         $this->output( "......<b>Found duplicate entries</b>\n" );
 473                         $this->output( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 474                         $duplicate = [];
 475                         foreach ( $rows as $row ) {
 476                                 if ( !isset( $duplicate[$row->cur_namespace] ) ) {
 477                                         $duplicate[$row->cur_namespace] = [];
 478                                 }
 479
 480                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 481                                 $this->output( sprintf(
 482                                         "      %-60s %3s %5s\n",
 483                                         $row->cur_title, $row->cur_namespace,
 484                                         $row->c
 485                                 ) );
 486                         }
 487                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 488                         $firstCond = true;
 489                         foreach ( $duplicate as $ns => $titles ) {
 490                                 if ( $firstCond ) {
 491                                         $firstCond = false;
 492                                 } else {
 493                                         $sql .= ' OR ';
 494                                 }
 495                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 496                                 $first = true;
 497                                 foreach ( $titles as $t ) {
 498                                         if ( $first ) {
 499                                                 $sql .= $this->db->addQuotes( $t );
 500                                                 $first = false;
 501                                         } else {
 502                                                 $sql .= ', ' . $this->db->addQuotes( $t );
 503                                         }
 504                                 }
 505                                 $sql .= ") ) \n";
 506                         }
 507                         # By sorting descending, the most recent entry will be the first in the list.
 508                         # All following entries will be deleted by the next while-loop.
 509                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 510
 511                         $rows = $this->db->query( $sql, __METHOD__ );
 512
 513                         $prev_title = $prev_namespace = false;
 514                         $deleteId = [];
 515
 516                         foreach ( $rows as $row ) {
 517                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 518                                         $deleteId[] = $row->cur_id;
 519                                 }
 520                                 $prev_title = $row->cur_title;
 521                                 $prev_namespace = $row->cur_namespace;
 522                         }
 523                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . implode( ',', $deleteId ) . ')';
 524                         $this->db->query( $sql, __METHOD__ );
 525                         $this->output( wfTimestamp( TS_DB ) );
 526                         $this->output( "......<b>Deleted</b> " . $this->db->affectedRows() . " records.\n" );
 527                 }
 528
 529                 $this->output( wfTimestamp( TS_DB ) );
 530                 $this->output( "......Creating tables.\n" );
 531                 $this->db->query( "CREATE TABLE $page (
 532                         page_id int(8) unsigned NOT NULL auto_increment,
 533                         page_namespace int NOT NULL,
 534                         page_title varchar(255) binary NOT NULL,
 535                         page_restrictions tinyblob NOT NULL,
 536                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 537                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 538                         page_random real unsigned NOT NULL,
 539                         page_touched char(14) binary NOT NULL default '',
 540                         page_latest int(8) unsigned NOT NULL,
 541                         page_len int(8) unsigned NOT NULL,
 542
 543                         PRIMARY KEY page_id (page_id),
 544                         UNIQUE INDEX name_title (page_namespace,page_title),
 545                         INDEX (page_random),
 546                         INDEX (page_len)
 547                         ) ENGINE=InnoDB", __METHOD__ );
 548                 $this->db->query( "CREATE TABLE $revision (
 549                         rev_id int(8) unsigned NOT NULL auto_increment,
 550                         rev_page int(8) unsigned NOT NULL,
 551                         rev_comment tinyblob NOT NULL,
 552                         rev_user int(5) unsigned NOT NULL default '0',
 553                         rev_user_text varchar(255) binary NOT NULL default '',
 554                         rev_timestamp char(14) binary NOT NULL default '',
 555                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 556                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 557                         rev_len int(8) unsigned,
 558                         rev_parent_id int(8) unsigned default NULL,
 559                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 560                         UNIQUE INDEX rev_id (rev_id),
 561                         INDEX rev_timestamp (rev_timestamp),
 562                         INDEX page_timestamp (rev_page,rev_timestamp),
 563                         INDEX user_timestamp (rev_user,rev_timestamp),
 564                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 565                         ) ENGINE=InnoDB", __METHOD__ );
 566
 567                 $this->output( wfTimestamp( TS_DB ) );
 568                 $this->output( "......Locking tables.\n" );
 569                 $this->db->query(
 570                         "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE",
 571                         __METHOD__
 572                 );
 573
 574                 $maxold = intval( $this->db->selectField( 'old', 'max(old_id)', '', __METHOD__ ) );
 575                 $this->output( wfTimestamp( TS_DB ) );
 576                 $this->output( "......maxold is {$maxold}\n" );
 577
 578                 $this->output( wfTimestamp( TS_DB ) );
 579                 global $wgLegacySchemaConversion;
 580                 if ( $wgLegacySchemaConversion ) {
 581                         // Create HistoryBlobCurStub entries.
 582                         // Text will be pulled from the leftover 'cur' table at runtime.
 583                         $this->output( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 584                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 585                         $cur_flags = "'object'";
 586                 } else {
 587                         // Copy all cur text in immediately: this may take longer but avoids
 588                         // having to keep an extra table around.
 589                         $this->output( "......Moving text from cur.\n" );
 590                         $cur_text = 'cur_text';
 591                         $cur_flags = "''";
 592                 }
 593                 $this->db->query(
 594                         "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user,
 595                                 old_user_text, old_timestamp, old_minor_edit, old_flags)
 596                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text,
 597                                 cur_timestamp, cur_minor_edit, $cur_flags
 598                         FROM $cur",
 599                         __METHOD__
 600                 );
 601
 602                 $this->output( wfTimestamp( TS_DB ) );
 603                 $this->output( "......Setting up revision table.\n" );
 604                 $this->db->query(
 605                         "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user,
 606                                 rev_user_text, rev_timestamp, rev_minor_edit)
 607                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 608                                 old_timestamp, old_minor_edit
 609                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title",
 610                         __METHOD__
 611                 );
 612
 613                 $this->output( wfTimestamp( TS_DB ) );
 614                 $this->output( "......Setting up page table.\n" );
 615                 $this->db->query(
 616                         "INSERT INTO $page (page_id, page_namespace, page_title,
 617                                 page_restrictions, page_is_redirect, page_is_new, page_random,
 618                                 page_touched, page_latest, page_len)
 619                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions,
 620                                 cur_is_redirect, cur_is_new, cur_random, cur_touched, rev_id, LENGTH(cur_text)
 621                         FROM $cur,$revision
 622                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}",
 623                         __METHOD__
 624                 );
 625
 626                 $this->output( wfTimestamp( TS_DB ) );
 627                 $this->output( "......Unlocking tables.\n" );
 628                 $this->db->query( "UNLOCK TABLES", __METHOD__ );
 629
 630                 $this->output( wfTimestamp( TS_DB ) );
 631                 $this->output( "......Renaming old.\n" );
 632                 $this->db->query( "ALTER TABLE $old RENAME TO $text", __METHOD__ );
 633
 634                 $this->output( wfTimestamp( TS_DB ) );
 635                 $this->output( "...done.\n" );
 636         }
 637
 638         protected function doNamespaceSize() {
 639                 $tables = [
 640                         'page' => 'page',
 641                         'archive' => 'ar',
 642                         'recentchanges' => 'rc',
 643                         'watchlist' => 'wl',
 644                         'querycache' => 'qc',
 645                         'logging' => 'log',
 646                 ];
 647                 foreach ( $tables as $table => $prefix ) {
 648                         $field = $prefix . '_namespace';
 649
 650                         $tablename = $this->db->tableName( $table );
 651                         $result = $this->db->query( "SHOW COLUMNS FROM $tablename LIKE '$field'", __METHOD__ );
 652                         $info = $this->db->fetchObject( $result );
 653
 654                         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 655                                 $this->output( "...$field is already a full int ($info->Type).\n" );
 656                         } else {
 657                                 $this->output( "Promoting $field from $info->Type to int... " );
 658                                 $this->db->query( "ALTER TABLE $tablename MODIFY $field int NOT NULL", __METHOD__ );
 659                                 $this->output( "done.\n" );
 660                         }
 661                 }
 662         }
 663
 664         protected function doPagelinksUpdate() {
 665                 if ( $this->db->tableExists( 'pagelinks', __METHOD__ ) ) {
 666                         $this->output( "...already have pagelinks table.\n" );
 667
 668                         return;
 669                 }
 670
 671                 $this->applyPatch(
 672                         'patch-pagelinks.sql',
 673                         false,
 674                         'Converting links and brokenlinks tables to pagelinks'
 675                 );
 676
 677                 global $wgContLang;
 678                 foreach ( $wgContLang->getNamespaces() as $ns => $name ) {
 679                         if ( $ns == 0 ) {
 680                                 continue;
 681                         }
 682
 683                         $this->output( "Cleaning up broken links for namespace $ns... " );
 684                         $this->db->update( 'pagelinks',
 685                                 [
 686                                         'pl_namespace' => $ns,
 687                                         "pl_title = TRIM(LEADING {$this->db->addQuotes( "$name:" )} FROM pl_title)",
 688                                 ],
 689                                 [
 690                                         'pl_namespace' => 0,
 691                                         'pl_title' . $this->db->buildLike( "$name:", $this->db->anyString() ),
 692                                 ],
 693                                 __METHOD__
 694                         );
 695                         $this->output( "done.\n" );
 696                 }
 697         }
 698
 699         protected function doUserUniqueUpdate() {
 700                 if ( !$this->doTable( 'user' ) ) {
 701                         return true;
 702                 }
 703
 704                 $duper = new UserDupes( $this->db, [ $this, 'output' ] );
 705                 if ( $duper->hasUniqueIndex() ) {
 706                         $this->output( "...already have unique user_name index.\n" );
 707
 708                         return;
 709                 }
 710
 711                 if ( !$duper->clearDupes() ) {
 712                         $this->output( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 713                 }
 714                 $this->applyPatch( 'patch-user_nameindex.sql', false, "Adding unique index on user_name" );
 715         }
 716
 717         protected function doUserGroupsUpdate() {
 718                 if ( !$this->doTable( 'user_groups' ) ) {
 719                         return true;
 720                 }
 721
 722                 if ( $this->db->tableExists( 'user_groups', __METHOD__ ) ) {
 723                         $info = $this->db->fieldInfo( 'user_groups', 'ug_group' );
 724                         if ( $info->type() == 'int' ) {
 725                                 $oldug = $this->db->tableName( 'user_groups' );
 726                                 $newug = $this->db->tableName( 'user_groups_bogus' );
 727                                 $this->output( "user_groups table exists but is in bogus intermediate " .
 728                                         "format. Renaming to $newug... " );
 729                                 $this->db->query( "ALTER TABLE $oldug RENAME TO $newug", __METHOD__ );
 730                                 $this->output( "done.\n" );
 731
 732                                 $this->applyPatch( 'patch-user_groups.sql', false, "Re-adding fresh user_groups table" );
 733
 734                                 $this->output( "***\n" );
 735                                 $this->output( "*** WARNING: You will need to manually fix up user " .
 736                                         "permissions in the user_groups\n" );
 737                                 $this->output( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 738                                 $this->output( "***\n" );
 739                         } else {
 740                                 $this->output( "...user_groups table exists and is in current format.\n" );
 741                         }
 742
 743                         return;
 744                 }
 745
 746                 $this->applyPatch( 'patch-user_groups.sql', false, "Adding user_groups table" );
 747
 748                 if ( !$this->db->tableExists( 'user_rights', __METHOD__ ) ) {
 749                         if ( $this->db->fieldExists( 'user', 'user_rights', __METHOD__ ) ) {
 750                                 $this->applyPatch(
 751                                         'patch-user_rights.sql',
 752                                         false,
 753                                         'Upgrading from a 1.3 or older database? Breaking out user_rights for conversion'
 754                                 );
 755                         } else {
 756                                 $this->output( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 757                                 $this->output( "*** You may need to manually configure some sysops by manipulating\n" );
 758                                 $this->output( "*** the user_groups table.\n" );
 759
 760                                 return;
 761                         }
 762                 }
 763
 764                 $this->output( "Converting user_rights table to user_groups... " );
 765                 $result = $this->db->select( 'user_rights',
 766                         [ 'ur_user', 'ur_rights' ],
 767                         [ "ur_rights != ''" ],
 768                         __METHOD__ );
 769
 770                 foreach ( $result as $row ) {
 771                         $groups = array_unique(
 772                                 array_map( 'trim',
 773                                         explode( ',', $row->ur_rights ) ) );
 774
 775                         foreach ( $groups as $group ) {
 776                                 $this->db->insert( 'user_groups',
 777                                         [
 778                                                 'ug_user' => $row->ur_user,
 779                                                 'ug_group' => $group ],
 780                                         __METHOD__ );
 781                         }
 782                 }
 783                 $this->output( "done.\n" );
 784         }
 785
 786         /**
 787          * Make sure wl_notificationtimestamp can be NULL,
 788          * and update old broken items.
 789          */
 790         protected function doWatchlistNull() {
 791                 $info = $this->db->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 792                 if ( !$info ) {
 793                         return;
 794                 }
 795                 if ( $info->isNullable() ) {
 796                         $this->output( "...wl_notificationtimestamp is already nullable.\n" );
 797
 798                         return;
 799                 }
 800
 801                 $this->applyPatch(
 802                         'patch-watchlist-null.sql',
 803                         false,
 804                         'Making wl_notificationtimestamp nullable'
 805                 );
 806         }
 807
 808         /**
 809          * Set page_random field to a random value where it is equals to 0.
 810          *
 811          * @see bug 3946
 812          */
 813         protected function doPageRandomUpdate() {
 814                 $page = $this->db->tableName( 'page' );
 815                 $this->db->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", __METHOD__ );
 816                 $rows = $this->db->affectedRows();
 817
 818                 if ( $rows ) {
 819                         $this->output( "Set page_random to a random value on $rows rows where it was set to 0\n" );
 820                 } else {
 821                         $this->output( "...no page_random rows needed to be set\n" );
 822                 }
 823         }
 824
 825         protected function doTemplatelinksUpdate() {
 826                 if ( $this->db->tableExists( 'templatelinks', __METHOD__ ) ) {
 827                         $this->output( "...templatelinks table already exists\n" );
 828
 829                         return;
 830                 }
 831
 832                 $this->applyPatch( 'patch-templatelinks.sql', false, "Creating templatelinks table" );
 833
 834                 $this->output( "Populating...\n" );
 835                 if ( wfGetLB()->getServerCount() > 1 ) {
 836                         // Slow, replication-friendly update
 837                         $res = $this->db->select( 'pagelinks', [ 'pl_from', 'pl_namespace', 'pl_title' ],
 838                                 [ 'pl_namespace' => NS_TEMPLATE ], __METHOD__ );
 839                         $count = 0;
 840                         foreach ( $res as $row ) {
 841                                 $count = ( $count + 1 ) % 100;
 842                                 if ( $count == 0 ) {
 843                                         wfGetLBFactory()->waitForReplication( [ 'wiki' => wfWikiID() ] );
 844                                 }
 845                                 $this->db->insert( 'templatelinks',
 846                                         [
 847                                                 'tl_from' => $row->pl_from,
 848                                                 'tl_namespace' => $row->pl_namespace,
 849                                                 'tl_title' => $row->pl_title,
 850                                         ], __METHOD__
 851                                 );
 852                         }
 853                 } else {
 854                         // Fast update
 855                         $this->db->insertSelect( 'templatelinks', 'pagelinks',
 856                                 [
 857                                         'tl_from' => 'pl_from',
 858                                         'tl_namespace' => 'pl_namespace',
 859                                         'tl_title' => 'pl_title'
 860                                 ], [
 861                                         'pl_namespace' => 10
 862                                 ], __METHOD__
 863                         );
 864                 }
 865                 $this->output( "Done. Please run maintenance/refreshLinks.php for a more " .
 866                         "thorough templatelinks update.\n" );
 867         }
 868
 869         protected function doBacklinkingIndicesUpdate() {
 870                 if ( !$this->indexHasField( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 871                         !$this->indexHasField( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 872                         !$this->indexHasField( 'imagelinks', 'il_to', 'il_from' )
 873                 ) {
 874                         $this->applyPatch( 'patch-backlinkindexes.sql', false, "Updating backlinking indices" );
 875                 }
 876         }
 877
 878         /**
 879          * Adding page_restrictions table, obsoleting page.page_restrictions.
 880          * Migrating old restrictions to new table
 881          * -- Andrew Garrett, January 2007.
 882          */
 883         protected function doRestrictionsUpdate() {
 884                 if ( $this->db->tableExists( 'page_restrictions', __METHOD__ ) ) {
 885                         $this->output( "...page_restrictions table already exists.\n" );
 886
 887                         return;
 888                 }
 889
 890                 $this->applyPatch(
 891                         'patch-page_restrictions.sql',
 892                         false,
 893                         'Creating page_restrictions table (1/2)'
 894                 );
 895                 $this->applyPatch(
 896                         'patch-page_restrictions_sortkey.sql',
 897                         false,
 898                         'Creating page_restrictions table (2/2)'
 899                 );
 900                 $this->output( "done.\n" );
 901
 902                 $this->output( "Migrating old restrictions to new table...\n" );
 903                 $task = $this->maintenance->runChild( 'UpdateRestrictions' );
 904                 $task->execute();
 905         }
 906
 907         protected function doCategorylinksIndicesUpdate() {
 908                 if ( !$this->indexHasField( 'categorylinks', 'cl_sortkey', 'cl_from' ) ) {
 909                         $this->applyPatch( 'patch-categorylinksindex.sql', false, "Updating categorylinks Indices" );
 910                 }
 911         }
 912
 913         protected function doCategoryPopulation() {
 914                 if ( $this->updateRowExists( 'populate category' ) ) {
 915                         $this->output( "...category table already populated.\n" );
 916
 917                         return;
 918                 }
 919
 920                 $this->output(
 921                         "Populating category table, printing progress markers. " .
 922                         "For large databases, you\n" .
 923                         "may want to hit Ctrl-C and do this manually with maintenance/\n" .
 924                         "populateCategory.php.\n"
 925                 );
 926                 $task = $this->maintenance->runChild( 'PopulateCategory' );
 927                 $task->execute();
 928                 $this->output( "Done populating category table.\n" );
 929         }
 930
 931         protected function doPopulateParentId() {
 932                 if ( !$this->updateRowExists( 'populate rev_parent_id' ) ) {
 933                         $this->output(
 934                                 "Populating rev_parent_id fields, printing progress markers. For large\n" .
 935                                 "databases, you may want to hit Ctrl-C and do this manually with\n" .
 936                                 "maintenance/populateParentId.php.\n" );
 937
 938                         $task = $this->maintenance->runChild( 'PopulateParentId' );
 939                         $task->execute();
 940                 }
 941         }
 942
 943         protected function doMaybeProfilingMemoryUpdate() {
 944                 if ( !$this->doTable( 'profiling' ) ) {
 945                         return true;
 946                 }
 947
 948                 if ( !$this->db->tableExists( 'profiling', __METHOD__ ) ) {
 949                         return true;
 950                 } elseif ( $this->db->fieldExists( 'profiling', 'pf_memory', __METHOD__ ) ) {
 951                         $this->output( "...profiling table has pf_memory field.\n" );
 952
 953                         return true;
 954                 }
 955
 956                 return $this->applyPatch(
 957                         'patch-profiling-memory.sql',
 958                         false,
 959                         'Adding pf_memory field to table profiling'
 960                 );
 961         }
 962
 963         protected function doFilearchiveIndicesUpdate() {
 964                 $info = $this->db->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 965                 if ( !$info ) {
 966                         $this->applyPatch( 'patch-filearchive-user-index.sql', false, "Updating filearchive indices" );
 967                 }
 968
 969                 return true;
 970         }
 971
 972         protected function doUniquePlTlIl() {
 973                 $info = $this->db->indexInfo( 'pagelinks', 'pl_namespace' );
 974                 if ( is_array( $info ) && !$info[0]->Non_unique ) {
 975                         $this->output( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
 976
 977                         return true;
 978                 }
 979                 if ( $this->skipSchema ) {
 980                         $this->output( "...skipping schema change (making pl_namespace, tl_namespace " .
 981                                 "and il_to indices UNIQUE).\n" );
 982
 983                         return false;
 984                 }
 985
 986                 return $this->applyPatch(
 987                         'patch-pl-tl-il-unique.sql',
 988                         false,
 989                         'Making pl_namespace, tl_namespace and il_to indices UNIQUE'
 990                 );
 991         }
 992
 993         protected function doUpdateMimeMinorField() {
 994                 if ( $this->updateRowExists( 'mime_minor_length' ) ) {
 995                         $this->output( "...*_mime_minor fields are already long enough.\n" );
 996
 997                         return;
 998                 }
 999
1000                 $this->applyPatch(
1001                         'patch-mime_minor_length.sql',
1002                         false,
1003                         'Altering all *_mime_minor fields to 100 bytes in size'
1004                 );
1005         }
1006
1007         protected function doClFieldsUpdate() {
1008                 if ( $this->updateRowExists( 'cl_fields_update' ) ) {
1009                         $this->output( "...categorylinks up-to-date.\n" );
1010
1011                         return;
1012                 }
1013
1014                 $this->applyPatch(
1015                         'patch-categorylinks-better-collation2.sql',
1016                         false,
1017                         'Updating categorylinks (again)'
1018                 );
1019         }
1020
1021         protected function doLangLinksLengthUpdate() {
1022                 $langlinks = $this->db->tableName( 'langlinks' );
1023                 $res = $this->db->query( "SHOW COLUMNS FROM $langlinks LIKE 'll_lang'" );
1024                 $row = $this->db->fetchObject( $res );
1025
1026                 if ( $row && $row->Type == "varbinary(10)" ) {
1027                         $this->applyPatch(
1028                                 'patch-langlinks-ll_lang-20.sql',
1029                                 false,
1030                                 'Updating length of ll_lang in langlinks'
1031                         );
1032                 } else {
1033                         $this->output( "...ll_lang is up-to-date.\n" );
1034                 }
1035         }
1036
1037         protected function doUserNewTalkTimestampNotNull() {
1038                 if ( !$this->doTable( 'user_newtalk' ) ) {
1039                         return true;
1040                 }
1041
1042                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_last_timestamp' );
1043                 if ( $info === false ) {
1044                         return;
1045                 }
1046                 if ( $info->isNullable() ) {
1047                         $this->output( "...user_last_timestamp is already nullable.\n" );
1048
1049                         return;
1050                 }
1051
1052                 $this->applyPatch(
1053                         'patch-user-newtalk-timestamp-null.sql',
1054                         false,
1055                         'Making user_last_timestamp nullable'
1056                 );
1057         }
1058
1059         protected function doIwlinksIndexNonUnique() {
1060                 $info = $this->db->indexInfo( 'iwlinks', 'iwl_prefix_title_from' );
1061                 if ( is_array( $info ) && $info[0]->Non_unique ) {
1062                         $this->output( "...iwl_prefix_title_from index is already non-UNIQUE.\n" );
1063
1064                         return true;
1065                 }
1066                 if ( $this->skipSchema ) {
1067                         $this->output( "...skipping schema change (making iwl_prefix_title_from index non-UNIQUE).\n" );
1068
1069                         return false;
1070                 }
1071
1072                 return $this->applyPatch(
1073                         'patch-iwl_prefix_title_from-non-unique.sql',
1074                         false,
1075                         'Making iwl_prefix_title_from index non-UNIQUE'
1076                 );
1077         }
1078
1079         protected function doUserNewTalkUseridUnsigned() {
1080                 if ( !$this->doTable( 'user_newtalk' ) ) {
1081                         return true;
1082                 }
1083
1084                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_id' );
1085                 if ( $info === false ) {
1086                         return true;
1087                 }
1088                 if ( $info->isUnsigned() ) {
1089                         $this->output( "...user_id is already unsigned int.\n" );
1090
1091                         return true;
1092                 }
1093
1094                 return $this->applyPatch(
1095                         'patch-user-newtalk-userid-unsigned.sql',
1096                         false,
1097                         'Making user_id unsigned int'
1098                 );
1099         }
1100 }