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                         [ 'addTable', 'change_tag', 'patch-change_tag.sql' ],
 159                         [ 'addTable', 'tag_summary', 'patch-tag_summary.sql' ],
 160                         [ 'addTable', 'valid_tag', 'patch-valid_tag.sql' ],
 161
 162                         // 1.16
 163                         [ 'addTable', 'user_properties', 'patch-user_properties.sql' ],
 164                         [ 'addTable', 'log_search', 'patch-log_search.sql' ],
 165                         [ 'addField', 'logging', 'log_user_text', 'patch-log_user_text.sql' ],
 166                         # listed separately from the previous update because 1.16 was released without this update
 167                         [ 'doLogUsertextPopulation' ],
 168                         [ 'doLogSearchPopulation' ],
 169                         [ 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ],
 170                         [ 'addIndex', 'log_search', 'ls_field_val', 'patch-log_search-rename-index.sql' ],
 171                         [ 'addIndex', 'change_tag', 'change_tag_rc_tag', 'patch-change_tag-indexes.sql' ],
 172                         [ 'addField', 'redirect', 'rd_interwiki', 'patch-rd_interwiki.sql' ],
 173                         [ 'doUpdateTranscacheField' ],
 174                         [ 'doUpdateMimeMinorField' ],
 175
 176                         // 1.17
 177                         [ 'addTable', 'iwlinks', 'patch-iwlinks.sql' ],
 178                         [ 'addIndex', 'iwlinks', 'iwl_prefix_title_from', 'patch-rename-iwl_prefix.sql' ],
 179                         [ 'addField', 'updatelog', 'ul_value', 'patch-ul_value.sql' ],
 180                         [ 'addField', 'interwiki', 'iw_api', 'patch-iw_api_and_wikiid.sql' ],
 181                         [ 'dropIndex', 'iwlinks', 'iwl_prefix', 'patch-kill-iwl_prefix.sql' ],
 182                         [ 'addField', 'categorylinks', 'cl_collation', 'patch-categorylinks-better-collation.sql' ],
 183                         [ 'doClFieldsUpdate' ],
 184                         [ 'addTable', 'module_deps', 'patch-module_deps.sql' ],
 185                         [ 'dropIndex', 'archive', 'ar_page_revid', 'patch-archive_kill_ar_page_revid.sql' ],
 186                         [ 'addIndex', 'archive', 'ar_revid', 'patch-archive_ar_revid.sql' ],
 187                         [ 'doLangLinksLengthUpdate' ],
 188
 189                         // 1.18
 190                         [ 'doUserNewTalkTimestampNotNull' ],
 191                         [ 'addIndex', 'user', 'user_email', 'patch-user_email_index.sql' ],
 192                         [ 'modifyField', 'user_properties', 'up_property', 'patch-up_property.sql' ],
 193                         [ 'addTable', 'uploadstash', 'patch-uploadstash.sql' ],
 194                         [ 'addTable', 'user_former_groups', 'patch-user_former_groups.sql' ],
 195
 196                         // 1.19
 197                         [ 'addIndex', 'logging', 'type_action', 'patch-logging-type-action-index.sql' ],
 198                         [ 'addField', 'revision', 'rev_sha1', 'patch-rev_sha1.sql' ],
 199                         [ 'doMigrateUserOptions' ],
 200                         [ 'dropField', 'user', 'user_options', 'patch-drop-user_options.sql' ],
 201                         [ 'addField', 'archive', 'ar_sha1', 'patch-ar_sha1.sql' ],
 202                         [ 'addIndex', 'page', 'page_redirect_namespace_len',
 203                                 'patch-page_redirect_namespace_len.sql' ],
 204                         [ 'addField', 'uploadstash', 'us_chunk_inx', 'patch-uploadstash_chunk.sql' ],
 205                         [ 'addfield', 'job', 'job_timestamp', 'patch-jobs-add-timestamp.sql' ],
 206
 207                         // 1.20
 208                         [ 'addIndex', 'revision', 'page_user_timestamp', 'patch-revision-user-page-index.sql' ],
 209                         [ 'addField', 'ipblocks', 'ipb_parent_block_id', 'patch-ipb-parent-block-id.sql' ],
 210                         [ 'addIndex', 'ipblocks', 'ipb_parent_block_id', 'patch-ipb-parent-block-id-index.sql' ],
 211                         [ 'dropField', 'category', 'cat_hidden', 'patch-cat_hidden.sql' ],
 212
 213                         // 1.21
 214                         [ 'addField', 'revision', 'rev_content_format', 'patch-revision-rev_content_format.sql' ],
 215                         [ 'addField', 'revision', 'rev_content_model', 'patch-revision-rev_content_model.sql' ],
 216                         [ 'addField', 'archive', 'ar_content_format', 'patch-archive-ar_content_format.sql' ],
 217                         [ 'addField', 'archive', 'ar_content_model', 'patch-archive-ar_content_model.sql' ],
 218                         [ 'addField', 'page', 'page_content_model', 'patch-page-page_content_model.sql' ],
 219                         [ 'enableContentHandlerUseDB' ],
 220                         [ 'dropField', 'site_stats', 'ss_admins', 'patch-drop-ss_admins.sql' ],
 221                         [ 'dropField', 'recentchanges', 'rc_moved_to_title', 'patch-rc_moved.sql' ],
 222                         [ 'addTable', 'sites', 'patch-sites.sql' ],
 223                         [ 'addField', 'filearchive', 'fa_sha1', 'patch-fa_sha1.sql' ],
 224                         [ 'addField', 'job', 'job_token', 'patch-job_token.sql' ],
 225                         [ 'addField', 'job', 'job_attempts', 'patch-job_attempts.sql' ],
 226                         [ 'doEnableProfiling' ],
 227                         [ 'addField', 'uploadstash', 'us_props', 'patch-uploadstash-us_props.sql' ],
 228                         [ 'modifyField', 'user_groups', 'ug_group', 'patch-ug_group-length-increase-255.sql' ],
 229                         [ 'modifyField', 'user_former_groups', 'ufg_group',
 230                                 'patch-ufg_group-length-increase-255.sql' ],
 231                         [ 'addIndex', 'page_props', 'pp_propname_page',
 232                                 'patch-page_props-propname-page-index.sql' ],
 233                         [ 'addIndex', 'image', 'img_media_mime', 'patch-img_media_mime-index.sql' ],
 234
 235                         // 1.22
 236                         [ 'doIwlinksIndexNonUnique' ],
 237                         [ 'addIndex', 'iwlinks', 'iwl_prefix_from_title',
 238                                 'patch-iwlinks-from-title-index.sql' ],
 239                         [ 'addField', 'archive', 'ar_id', 'patch-archive-ar_id.sql' ],
 240                         [ 'addField', 'externallinks', 'el_id', 'patch-externallinks-el_id.sql' ],
 241
 242                         // 1.23
 243                         [ 'addField', 'recentchanges', 'rc_source', 'patch-rc_source.sql' ],
 244                         [ 'addIndex', 'logging', 'log_user_text_type_time',
 245                                 'patch-logging_user_text_type_time_index.sql' ],
 246                         [ 'addIndex', 'logging', 'log_user_text_time', 'patch-logging_user_text_time_index.sql' ],
 247                         [ 'addField', 'page', 'page_links_updated', 'patch-page_links_updated.sql' ],
 248                         [ 'addField', 'user', 'user_password_expires', 'patch-user_password_expire.sql' ],
 249
 250                         // 1.24
 251                         [ 'addField', 'page_props', 'pp_sortkey', 'patch-pp_sortkey.sql' ],
 252                         [ 'dropField', 'recentchanges', 'rc_cur_time', 'patch-drop-rc_cur_time.sql' ],
 253                         [ 'addIndex', 'watchlist', 'wl_user_notificationtimestamp',
 254                                 'patch-watchlist-user-notificationtimestamp-index.sql' ],
 255                         [ 'addField', 'page', 'page_lang', 'patch-page_lang.sql' ],
 256                         [ 'addField', 'pagelinks', 'pl_from_namespace', 'patch-pl_from_namespace.sql' ],
 257                         [ 'addField', 'templatelinks', 'tl_from_namespace', 'patch-tl_from_namespace.sql' ],
 258                         [ 'addField', 'imagelinks', 'il_from_namespace', 'patch-il_from_namespace.sql' ],
 259                         [ 'modifyField', 'image', 'img_major_mime',
 260                                 'patch-img_major_mime-chemical.sql' ],
 261                         [ 'modifyField', 'oldimage', 'oi_major_mime',
 262                                 'patch-oi_major_mime-chemical.sql' ],
 263                         [ 'modifyField', 'filearchive', 'fa_major_mime',
 264                                 'patch-fa_major_mime-chemical.sql' ],
 265
 266                         // 1.25
 267                         [ 'doUserNewTalkUseridUnsigned' ],
 268                         // note this patch covers other _comment and _description fields too
 269                         [ 'modifyField', 'recentchanges', 'rc_comment', 'patch-editsummary-length.sql' ],
 270
 271                         // 1.26
 272                         [ 'dropTable', 'hitcounter' ],
 273                         [ 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ],
 274                         [ 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ],
 275
 276                         // 1.27
 277                         [ 'dropTable', 'msg_resource_links' ],
 278                         [ 'dropTable', 'msg_resource' ],
 279                         [ 'addTable', 'bot_passwords', 'patch-bot_passwords.sql' ],
 280                         [ 'addField', 'watchlist', 'wl_id', 'patch-watchlist-wl_id.sql' ],
 281                         [ 'dropIndex', 'categorylinks', 'cl_collation', 'patch-kill-cl_collation_index.sql' ],
 282                         [ 'addIndex', 'categorylinks', 'cl_collation_ext',
 283                                 'patch-add-cl_collation_ext_index.sql' ],
 284                         [ 'doCollationUpdate' ],
 285
 286                         // 1.28
 287                         [ 'addIndex', 'recentchanges', 'rc_name_type_patrolled_timestamp',
 288                                 'patch-add-rc_name_type_patrolled_timestamp_index.sql' ],
 289                         [ 'doRevisionPageRevIndexNonUnique' ],
 290                         [ 'doNonUniquePlTlIl' ],
 291                         [ 'addField', 'change_tag', 'ct_id', 'patch-change_tag-ct_id.sql' ],
 292                         [ 'addField', 'tag_summary', 'ts_id', 'patch-tag_summary-ts_id.sql' ],
 293                         [ 'modifyField', 'recentchanges', 'rc_ip', 'patch-rc_ip_modify.sql' ],
 294                 ];
 295         }
 296
 297         /**
 298          * 1.4 betas were missing the 'binary' marker from logging.log_title,
 299          * which causes a collation mismatch error on joins in MySQL 4.1.
 300          *
 301          * @param string $table Table name
 302          * @param string $field Field name to check
 303          * @param string $patchFile Path to the patch to correct the field
 304          * @return bool
 305          */
 306         protected function checkBin( $table, $field, $patchFile ) {
 307                 if ( !$this->doTable( $table ) ) {
 308                         return true;
 309                 }
 310
 311                 /** @var MySQLField $fieldInfo */
 312                 $fieldInfo = $this->db->fieldInfo( $table, $field );
 313                 if ( $fieldInfo->isBinary() ) {
 314                         $this->output( "...$table table has correct $field encoding.\n" );
 315                 } else {
 316                         $this->applyPatch( $patchFile, false, "Fixing $field encoding on $table table" );
 317                 }
 318         }
 319
 320         /**
 321          * Check whether an index contain a field
 322          *
 323          * @param string $table Table name
 324          * @param string $index Index name to check
 325          * @param string $field Field that should be in the index
 326          * @return bool
 327          */
 328         protected function indexHasField( $table, $index, $field ) {
 329                 if ( !$this->doTable( $table ) ) {
 330                         return true;
 331                 }
 332
 333                 $info = $this->db->indexInfo( $table, $index, __METHOD__ );
 334                 if ( $info ) {
 335                         foreach ( $info as $row ) {
 336                                 if ( $row->Column_name == $field ) {
 337                                         $this->output( "...index $index on table $table includes field $field.\n" );
 338
 339                                         return true;
 340                                 }
 341                         }
 342                 }
 343                 $this->output( "...index $index on table $table has no field $field; added.\n" );
 344
 345                 return false;
 346         }
 347
 348         /**
 349          * Check that interwiki table exists; if it doesn't source it
 350          */
 351         protected function doInterwikiUpdate() {
 352                 global $IP;
 353
 354                 if ( !$this->doTable( 'interwiki' ) ) {
 355                         return true;
 356                 }
 357
 358                 if ( $this->db->tableExists( "interwiki", __METHOD__ ) ) {
 359                         $this->output( "...already have interwiki table\n" );
 360
 361                         return;
 362                 }
 363
 364                 $this->applyPatch( 'patch-interwiki.sql', false, 'Creating interwiki table' );
 365                 $this->applyPatch(
 366                         "$IP/maintenance/interwiki.sql",
 367                         true,
 368                         'Adding default interwiki definitions'
 369                 );
 370         }
 371
 372         /**
 373          * Check that proper indexes are in place
 374          */
 375         protected function doIndexUpdate() {
 376                 $meta = $this->db->fieldInfo( 'recentchanges', 'rc_timestamp' );
 377                 if ( $meta === false ) {
 378                         throw new MWException( 'Missing rc_timestamp field of recentchanges table. Should not happen.' );
 379                 }
 380                 if ( $meta->isMultipleKey() ) {
 381                         $this->output( "...indexes seem up to 20031107 standards.\n" );
 382
 383                         return;
 384                 }
 385
 386                 $this->applyPatch( 'patch-indexes.sql', true, "Updating indexes to 20031107" );
 387         }
 388
 389         protected function doOldLinksUpdate() {
 390                 $cl = $this->maintenance->runChild( 'ConvertLinks' );
 391                 $cl->execute();
 392         }
 393
 394         protected function doFixAncientImagelinks() {
 395                 $info = $this->db->fieldInfo( 'imagelinks', 'il_from' );
 396                 if ( !$info || $info->type() !== 'string' ) {
 397                         $this->output( "...il_from OK\n" );
 398
 399                         return;
 400                 }
 401
 402                 $applied = $this->applyPatch(
 403                         'patch-fix-il_from.sql',
 404                         false,
 405                         'Fixing ancient broken imagelinks table.'
 406                 );
 407
 408                 if ( $applied ) {
 409                         $this->output( "NOTE: you will have to run maintenance/refreshLinks.php after this." );
 410                 }
 411         }
 412
 413         /**
 414          * Check if we need to add talk page rows to the watchlist
 415          */
 416         function doWatchlistUpdate() {
 417                 $talk = $this->db->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', __METHOD__ );
 418                 $nontalk = $this->db->selectField(
 419                         'watchlist',
 420                         'count(*)',
 421                         'NOT (wl_namespace & 1)',
 422                         __METHOD__
 423                 );
 424                 if ( $talk == $nontalk ) {
 425                         $this->output( "...watchlist talk page rows already present.\n" );
 426
 427                         return;
 428                 }
 429
 430                 $this->output( "Adding missing watchlist talk page rows... " );
 431                 $this->db->insertSelect( 'watchlist', 'watchlist',
 432                         [
 433                                 'wl_user' => 'wl_user',
 434                                 'wl_namespace' => 'wl_namespace | 1',
 435                                 'wl_title' => 'wl_title',
 436                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 437                         ], [ 'NOT (wl_namespace & 1)' ], __METHOD__, 'IGNORE' );
 438                 $this->output( "done.\n" );
 439
 440                 $this->output( "Adding missing watchlist subject page rows... " );
 441                 $this->db->insertSelect( 'watchlist', 'watchlist',
 442                         [
 443                                 'wl_user' => 'wl_user',
 444                                 'wl_namespace' => 'wl_namespace & ~1',
 445                                 'wl_title' => 'wl_title',
 446                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 447                         ], [ 'wl_namespace & 1' ], __METHOD__, 'IGNORE' );
 448                 $this->output( "done.\n" );
 449         }
 450
 451         function doSchemaRestructuring() {
 452                 if ( $this->db->tableExists( 'page', __METHOD__ ) ) {
 453                         $this->output( "...page table already exists.\n" );
 454
 455                         return;
 456                 }
 457
 458                 $this->output( "...converting from cur/old to page/revision/text DB structure.\n" );
 459                 $this->output( wfTimestamp( TS_DB ) );
 460                 $this->output( "......checking for duplicate entries.\n" );
 461
 462                 list( $cur, $old, $page, $revision, $text ) = $this->db->tableNamesN(
 463                         'cur',
 464                         'old',
 465                         'page',
 466                         'revision',
 467                         'text'
 468                 );
 469
 470                 $rows = $this->db->query( "
 471                         SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 472                         FROM $cur
 473                         GROUP BY cur_title, cur_namespace
 474                         HAVING c>1",
 475                         __METHOD__
 476                 );
 477
 478                 if ( $rows->numRows() > 0 ) {
 479                         $this->output( wfTimestamp( TS_DB ) );
 480                         $this->output( "......<b>Found duplicate entries</b>\n" );
 481                         $this->output( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 482                         $duplicate = [];
 483                         foreach ( $rows as $row ) {
 484                                 if ( !isset( $duplicate[$row->cur_namespace] ) ) {
 485                                         $duplicate[$row->cur_namespace] = [];
 486                                 }
 487
 488                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 489                                 $this->output( sprintf(
 490                                         "      %-60s %3s %5s\n",
 491                                         $row->cur_title, $row->cur_namespace,
 492                                         $row->c
 493                                 ) );
 494                         }
 495                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 496                         $firstCond = true;
 497                         foreach ( $duplicate as $ns => $titles ) {
 498                                 if ( $firstCond ) {
 499                                         $firstCond = false;
 500                                 } else {
 501                                         $sql .= ' OR ';
 502                                 }
 503                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 504                                 $first = true;
 505                                 foreach ( $titles as $t ) {
 506                                         if ( $first ) {
 507                                                 $sql .= $this->db->addQuotes( $t );
 508                                                 $first = false;
 509                                         } else {
 510                                                 $sql .= ', ' . $this->db->addQuotes( $t );
 511                                         }
 512                                 }
 513                                 $sql .= ") ) \n";
 514                         }
 515                         # By sorting descending, the most recent entry will be the first in the list.
 516                         # All following entries will be deleted by the next while-loop.
 517                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 518
 519                         $rows = $this->db->query( $sql, __METHOD__ );
 520
 521                         $prev_title = $prev_namespace = false;
 522                         $deleteId = [];
 523
 524                         foreach ( $rows as $row ) {
 525                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 526                                         $deleteId[] = $row->cur_id;
 527                                 }
 528                                 $prev_title = $row->cur_title;
 529                                 $prev_namespace = $row->cur_namespace;
 530                         }
 531                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . implode( ',', $deleteId ) . ')';
 532                         $this->db->query( $sql, __METHOD__ );
 533                         $this->output( wfTimestamp( TS_DB ) );
 534                         $this->output( "......<b>Deleted</b> " . $this->db->affectedRows() . " records.\n" );
 535                 }
 536
 537                 $this->output( wfTimestamp( TS_DB ) );
 538                 $this->output( "......Creating tables.\n" );
 539                 $this->db->query( "CREATE TABLE $page (
 540                         page_id int(8) unsigned NOT NULL auto_increment,
 541                         page_namespace int NOT NULL,
 542                         page_title varchar(255) binary NOT NULL,
 543                         page_restrictions tinyblob NOT NULL,
 544                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 545                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 546                         page_random real unsigned NOT NULL,
 547                         page_touched char(14) binary NOT NULL default '',
 548                         page_latest int(8) unsigned NOT NULL,
 549                         page_len int(8) unsigned NOT NULL,
 550
 551                         PRIMARY KEY page_id (page_id),
 552                         UNIQUE INDEX name_title (page_namespace,page_title),
 553                         INDEX (page_random),
 554                         INDEX (page_len)
 555                         ) ENGINE=InnoDB", __METHOD__ );
 556                 $this->db->query( "CREATE TABLE $revision (
 557                         rev_id int(8) unsigned NOT NULL auto_increment,
 558                         rev_page int(8) unsigned NOT NULL,
 559                         rev_comment tinyblob NOT NULL,
 560                         rev_user int(5) unsigned NOT NULL default '0',
 561                         rev_user_text varchar(255) binary NOT NULL default '',
 562                         rev_timestamp char(14) binary NOT NULL default '',
 563                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 564                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 565                         rev_len int(8) unsigned,
 566                         rev_parent_id int(8) unsigned default NULL,
 567                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 568                         UNIQUE INDEX rev_id (rev_id),
 569                         INDEX rev_timestamp (rev_timestamp),
 570                         INDEX page_timestamp (rev_page,rev_timestamp),
 571                         INDEX user_timestamp (rev_user,rev_timestamp),
 572                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 573                         ) ENGINE=InnoDB", __METHOD__ );
 574
 575                 $this->output( wfTimestamp( TS_DB ) );
 576                 $this->output( "......Locking tables.\n" );
 577                 $this->db->query(
 578                         "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE",
 579                         __METHOD__
 580                 );
 581
 582                 $maxold = intval( $this->db->selectField( 'old', 'max(old_id)', '', __METHOD__ ) );
 583                 $this->output( wfTimestamp( TS_DB ) );
 584                 $this->output( "......maxold is {$maxold}\n" );
 585
 586                 $this->output( wfTimestamp( TS_DB ) );
 587                 global $wgLegacySchemaConversion;
 588                 if ( $wgLegacySchemaConversion ) {
 589                         // Create HistoryBlobCurStub entries.
 590                         // Text will be pulled from the leftover 'cur' table at runtime.
 591                         $this->output( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 592                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 593                         $cur_flags = "'object'";
 594                 } else {
 595                         // Copy all cur text in immediately: this may take longer but avoids
 596                         // having to keep an extra table around.
 597                         $this->output( "......Moving text from cur.\n" );
 598                         $cur_text = 'cur_text';
 599                         $cur_flags = "''";
 600                 }
 601                 $this->db->query(
 602                         "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user,
 603                                 old_user_text, old_timestamp, old_minor_edit, old_flags)
 604                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text,
 605                                 cur_timestamp, cur_minor_edit, $cur_flags
 606                         FROM $cur",
 607                         __METHOD__
 608                 );
 609
 610                 $this->output( wfTimestamp( TS_DB ) );
 611                 $this->output( "......Setting up revision table.\n" );
 612                 $this->db->query(
 613                         "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user,
 614                                 rev_user_text, rev_timestamp, rev_minor_edit)
 615                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 616                                 old_timestamp, old_minor_edit
 617                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title",
 618                         __METHOD__
 619                 );
 620
 621                 $this->output( wfTimestamp( TS_DB ) );
 622                 $this->output( "......Setting up page table.\n" );
 623                 $this->db->query(
 624                         "INSERT INTO $page (page_id, page_namespace, page_title,
 625                                 page_restrictions, page_is_redirect, page_is_new, page_random,
 626                                 page_touched, page_latest, page_len)
 627                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions,
 628                                 cur_is_redirect, cur_is_new, cur_random, cur_touched, rev_id, LENGTH(cur_text)
 629                         FROM $cur,$revision
 630                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}",
 631                         __METHOD__
 632                 );
 633
 634                 $this->output( wfTimestamp( TS_DB ) );
 635                 $this->output( "......Unlocking tables.\n" );
 636                 $this->db->query( "UNLOCK TABLES", __METHOD__ );
 637
 638                 $this->output( wfTimestamp( TS_DB ) );
 639                 $this->output( "......Renaming old.\n" );
 640                 $this->db->query( "ALTER TABLE $old RENAME TO $text", __METHOD__ );
 641
 642                 $this->output( wfTimestamp( TS_DB ) );
 643                 $this->output( "...done.\n" );
 644         }
 645
 646         protected function doNamespaceSize() {
 647                 $tables = [
 648                         'page' => 'page',
 649                         'archive' => 'ar',
 650                         'recentchanges' => 'rc',
 651                         'watchlist' => 'wl',
 652                         'querycache' => 'qc',
 653                         'logging' => 'log',
 654                 ];
 655                 foreach ( $tables as $table => $prefix ) {
 656                         $field = $prefix . '_namespace';
 657
 658                         $tablename = $this->db->tableName( $table );
 659                         $result = $this->db->query( "SHOW COLUMNS FROM $tablename LIKE '$field'", __METHOD__ );
 660                         $info = $this->db->fetchObject( $result );
 661
 662                         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 663                                 $this->output( "...$field is already a full int ($info->Type).\n" );
 664                         } else {
 665                                 $this->output( "Promoting $field from $info->Type to int... " );
 666                                 $this->db->query( "ALTER TABLE $tablename MODIFY $field int NOT NULL", __METHOD__ );
 667                                 $this->output( "done.\n" );
 668                         }
 669                 }
 670         }
 671
 672         protected function doPagelinksUpdate() {
 673                 if ( $this->db->tableExists( 'pagelinks', __METHOD__ ) ) {
 674                         $this->output( "...already have pagelinks table.\n" );
 675
 676                         return;
 677                 }
 678
 679                 $this->applyPatch(
 680                         'patch-pagelinks.sql',
 681                         false,
 682                         'Converting links and brokenlinks tables to pagelinks'
 683                 );
 684
 685                 global $wgContLang;
 686                 foreach ( $wgContLang->getNamespaces() as $ns => $name ) {
 687                         if ( $ns == 0 ) {
 688                                 continue;
 689                         }
 690
 691                         $this->output( "Cleaning up broken links for namespace $ns... " );
 692                         $this->db->update( 'pagelinks',
 693                                 [
 694                                         'pl_namespace' => $ns,
 695                                         "pl_title = TRIM(LEADING {$this->db->addQuotes( "$name:" )} FROM pl_title)",
 696                                 ],
 697                                 [
 698                                         'pl_namespace' => 0,
 699                                         'pl_title' . $this->db->buildLike( "$name:", $this->db->anyString() ),
 700                                 ],
 701                                 __METHOD__
 702                         );
 703                         $this->output( "done.\n" );
 704                 }
 705         }
 706
 707         protected function doUserUniqueUpdate() {
 708                 if ( !$this->doTable( 'user' ) ) {
 709                         return true;
 710                 }
 711
 712                 $duper = new UserDupes( $this->db, [ $this, 'output' ] );
 713                 if ( $duper->hasUniqueIndex() ) {
 714                         $this->output( "...already have unique user_name index.\n" );
 715
 716                         return;
 717                 }
 718
 719                 if ( !$duper->clearDupes() ) {
 720                         $this->output( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 721                 }
 722                 $this->applyPatch( 'patch-user_nameindex.sql', false, "Adding unique index on user_name" );
 723         }
 724
 725         protected function doUserGroupsUpdate() {
 726                 if ( !$this->doTable( 'user_groups' ) ) {
 727                         return true;
 728                 }
 729
 730                 if ( $this->db->tableExists( 'user_groups', __METHOD__ ) ) {
 731                         $info = $this->db->fieldInfo( 'user_groups', 'ug_group' );
 732                         if ( $info->type() == 'int' ) {
 733                                 $oldug = $this->db->tableName( 'user_groups' );
 734                                 $newug = $this->db->tableName( 'user_groups_bogus' );
 735                                 $this->output( "user_groups table exists but is in bogus intermediate " .
 736                                         "format. Renaming to $newug... " );
 737                                 $this->db->query( "ALTER TABLE $oldug RENAME TO $newug", __METHOD__ );
 738                                 $this->output( "done.\n" );
 739
 740                                 $this->applyPatch( 'patch-user_groups.sql', false, "Re-adding fresh user_groups table" );
 741
 742                                 $this->output( "***\n" );
 743                                 $this->output( "*** WARNING: You will need to manually fix up user " .
 744                                         "permissions in the user_groups\n" );
 745                                 $this->output( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 746                                 $this->output( "***\n" );
 747                         } else {
 748                                 $this->output( "...user_groups table exists and is in current format.\n" );
 749                         }
 750
 751                         return;
 752                 }
 753
 754                 $this->applyPatch( 'patch-user_groups.sql', false, "Adding user_groups table" );
 755
 756                 if ( !$this->db->tableExists( 'user_rights', __METHOD__ ) ) {
 757                         if ( $this->db->fieldExists( 'user', 'user_rights', __METHOD__ ) ) {
 758                                 $this->applyPatch(
 759                                         'patch-user_rights.sql',
 760                                         false,
 761                                         'Upgrading from a 1.3 or older database? Breaking out user_rights for conversion'
 762                                 );
 763                         } else {
 764                                 $this->output( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 765                                 $this->output( "*** You may need to manually configure some sysops by manipulating\n" );
 766                                 $this->output( "*** the user_groups table.\n" );
 767
 768                                 return;
 769                         }
 770                 }
 771
 772                 $this->output( "Converting user_rights table to user_groups... " );
 773                 $result = $this->db->select( 'user_rights',
 774                         [ 'ur_user', 'ur_rights' ],
 775                         [ "ur_rights != ''" ],
 776                         __METHOD__ );
 777
 778                 foreach ( $result as $row ) {
 779                         $groups = array_unique(
 780                                 array_map( 'trim',
 781                                         explode( ',', $row->ur_rights ) ) );
 782
 783                         foreach ( $groups as $group ) {
 784                                 $this->db->insert( 'user_groups',
 785                                         [
 786                                                 'ug_user' => $row->ur_user,
 787                                                 'ug_group' => $group ],
 788                                         __METHOD__ );
 789                         }
 790                 }
 791                 $this->output( "done.\n" );
 792         }
 793
 794         /**
 795          * Make sure wl_notificationtimestamp can be NULL,
 796          * and update old broken items.
 797          */
 798         protected function doWatchlistNull() {
 799                 $info = $this->db->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 800                 if ( !$info ) {
 801                         return;
 802                 }
 803                 if ( $info->isNullable() ) {
 804                         $this->output( "...wl_notificationtimestamp is already nullable.\n" );
 805
 806                         return;
 807                 }
 808
 809                 $this->applyPatch(
 810                         'patch-watchlist-null.sql',
 811                         false,
 812                         'Making wl_notificationtimestamp nullable'
 813                 );
 814         }
 815
 816         /**
 817          * Set page_random field to a random value where it is equals to 0.
 818          *
 819          * @see bug 3946
 820          */
 821         protected function doPageRandomUpdate() {
 822                 $page = $this->db->tableName( 'page' );
 823                 $this->db->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", __METHOD__ );
 824                 $rows = $this->db->affectedRows();
 825
 826                 if ( $rows ) {
 827                         $this->output( "Set page_random to a random value on $rows rows where it was set to 0\n" );
 828                 } else {
 829                         $this->output( "...no page_random rows needed to be set\n" );
 830                 }
 831         }
 832
 833         protected function doTemplatelinksUpdate() {
 834                 if ( $this->db->tableExists( 'templatelinks', __METHOD__ ) ) {
 835                         $this->output( "...templatelinks table already exists\n" );
 836
 837                         return;
 838                 }
 839
 840                 $this->applyPatch( 'patch-templatelinks.sql', false, "Creating templatelinks table" );
 841
 842                 $this->output( "Populating...\n" );
 843                 if ( wfGetLB()->getServerCount() > 1 ) {
 844                         // Slow, replication-friendly update
 845                         $res = $this->db->select( 'pagelinks', [ 'pl_from', 'pl_namespace', 'pl_title' ],
 846                                 [ 'pl_namespace' => NS_TEMPLATE ], __METHOD__ );
 847                         $count = 0;
 848                         foreach ( $res as $row ) {
 849                                 $count = ( $count + 1 ) % 100;
 850                                 if ( $count == 0 ) {
 851                                         wfGetLBFactory()->waitForReplication( [ 'wiki' => wfWikiID() ] );
 852                                 }
 853                                 $this->db->insert( 'templatelinks',
 854                                         [
 855                                                 'tl_from' => $row->pl_from,
 856                                                 'tl_namespace' => $row->pl_namespace,
 857                                                 'tl_title' => $row->pl_title,
 858                                         ], __METHOD__
 859                                 );
 860                         }
 861                 } else {
 862                         // Fast update
 863                         $this->db->insertSelect( 'templatelinks', 'pagelinks',
 864                                 [
 865                                         'tl_from' => 'pl_from',
 866                                         'tl_namespace' => 'pl_namespace',
 867                                         'tl_title' => 'pl_title'
 868                                 ], [
 869                                         'pl_namespace' => 10
 870                                 ], __METHOD__
 871                         );
 872                 }
 873                 $this->output( "Done. Please run maintenance/refreshLinks.php for a more " .
 874                         "thorough templatelinks update.\n" );
 875         }
 876
 877         protected function doBacklinkingIndicesUpdate() {
 878                 if ( !$this->indexHasField( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 879                         !$this->indexHasField( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 880                         !$this->indexHasField( 'imagelinks', 'il_to', 'il_from' )
 881                 ) {
 882                         $this->applyPatch( 'patch-backlinkindexes.sql', false, "Updating backlinking indices" );
 883                 }
 884         }
 885
 886         /**
 887          * Adding page_restrictions table, obsoleting page.page_restrictions.
 888          * Migrating old restrictions to new table
 889          * -- Andrew Garrett, January 2007.
 890          */
 891         protected function doRestrictionsUpdate() {
 892                 if ( $this->db->tableExists( 'page_restrictions', __METHOD__ ) ) {
 893                         $this->output( "...page_restrictions table already exists.\n" );
 894
 895                         return;
 896                 }
 897
 898                 $this->applyPatch(
 899                         'patch-page_restrictions.sql',
 900                         false,
 901                         'Creating page_restrictions table (1/2)'
 902                 );
 903                 $this->applyPatch(
 904                         'patch-page_restrictions_sortkey.sql',
 905                         false,
 906                         'Creating page_restrictions table (2/2)'
 907                 );
 908                 $this->output( "done.\n" );
 909
 910                 $this->output( "Migrating old restrictions to new table...\n" );
 911                 $task = $this->maintenance->runChild( 'UpdateRestrictions' );
 912                 $task->execute();
 913         }
 914
 915         protected function doCategorylinksIndicesUpdate() {
 916                 if ( !$this->indexHasField( 'categorylinks', 'cl_sortkey', 'cl_from' ) ) {
 917                         $this->applyPatch( 'patch-categorylinksindex.sql', false, "Updating categorylinks Indices" );
 918                 }
 919         }
 920
 921         protected function doCategoryPopulation() {
 922                 if ( $this->updateRowExists( 'populate category' ) ) {
 923                         $this->output( "...category table already populated.\n" );
 924
 925                         return;
 926                 }
 927
 928                 $this->output(
 929                         "Populating category table, printing progress markers. " .
 930                         "For large databases, you\n" .
 931                         "may want to hit Ctrl-C and do this manually with maintenance/\n" .
 932                         "populateCategory.php.\n"
 933                 );
 934                 $task = $this->maintenance->runChild( 'PopulateCategory' );
 935                 $task->execute();
 936                 $this->output( "Done populating category table.\n" );
 937         }
 938
 939         protected function doPopulateParentId() {
 940                 if ( !$this->updateRowExists( 'populate rev_parent_id' ) ) {
 941                         $this->output(
 942                                 "Populating rev_parent_id fields, printing progress markers. For large\n" .
 943                                 "databases, you may want to hit Ctrl-C and do this manually with\n" .
 944                                 "maintenance/populateParentId.php.\n" );
 945
 946                         $task = $this->maintenance->runChild( 'PopulateParentId' );
 947                         $task->execute();
 948                 }
 949         }
 950
 951         protected function doMaybeProfilingMemoryUpdate() {
 952                 if ( !$this->doTable( 'profiling' ) ) {
 953                         return true;
 954                 }
 955
 956                 if ( !$this->db->tableExists( 'profiling', __METHOD__ ) ) {
 957                         return true;
 958                 } elseif ( $this->db->fieldExists( 'profiling', 'pf_memory', __METHOD__ ) ) {
 959                         $this->output( "...profiling table has pf_memory field.\n" );
 960
 961                         return true;
 962                 }
 963
 964                 return $this->applyPatch(
 965                         'patch-profiling-memory.sql',
 966                         false,
 967                         'Adding pf_memory field to table profiling'
 968                 );
 969         }
 970
 971         protected function doFilearchiveIndicesUpdate() {
 972                 $info = $this->db->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 973                 if ( !$info ) {
 974                         $this->applyPatch( 'patch-filearchive-user-index.sql', false, "Updating filearchive indices" );
 975                 }
 976
 977                 return true;
 978         }
 979
 980         protected function doNonUniquePlTlIl() {
 981                 $info = $this->db->indexInfo( 'pagelinks', 'pl_namespace' );
 982                 if ( is_array( $info ) && $info[0]->Non_unique ) {
 983                         $this->output( "...pl_namespace, tl_namespace, il_to indices are already non-UNIQUE.\n" );
 984
 985                         return true;
 986                 }
 987                 if ( $this->skipSchema ) {
 988                         $this->output( "...skipping schema change (making pl_namespace, tl_namespace " .
 989                                 "and il_to indices non-UNIQUE).\n" );
 990
 991                         return false;
 992                 }
 993
 994                 return $this->applyPatch(
 995                         'patch-pl-tl-il-nonunique.sql',
 996                         false,
 997                         'Making pl_namespace, tl_namespace and il_to indices non-UNIQUE'
 998                 );
 999         }
1000
1001         protected function doUpdateMimeMinorField() {
1002                 if ( $this->updateRowExists( 'mime_minor_length' ) ) {
1003                         $this->output( "...*_mime_minor fields are already long enough.\n" );
1004
1005                         return;
1006                 }
1007
1008                 $this->applyPatch(
1009                         'patch-mime_minor_length.sql',
1010                         false,
1011                         'Altering all *_mime_minor fields to 100 bytes in size'
1012                 );
1013         }
1014
1015         protected function doClFieldsUpdate() {
1016                 if ( $this->updateRowExists( 'cl_fields_update' ) ) {
1017                         $this->output( "...categorylinks up-to-date.\n" );
1018
1019                         return;
1020                 }
1021
1022                 $this->applyPatch(
1023                         'patch-categorylinks-better-collation2.sql',
1024                         false,
1025                         'Updating categorylinks (again)'
1026                 );
1027         }
1028
1029         protected function doLangLinksLengthUpdate() {
1030                 $langlinks = $this->db->tableName( 'langlinks' );
1031                 $res = $this->db->query( "SHOW COLUMNS FROM $langlinks LIKE 'll_lang'" );
1032                 $row = $this->db->fetchObject( $res );
1033
1034                 if ( $row && $row->Type == "varbinary(10)" ) {
1035                         $this->applyPatch(
1036                                 'patch-langlinks-ll_lang-20.sql',
1037                                 false,
1038                                 'Updating length of ll_lang in langlinks'
1039                         );
1040                 } else {
1041                         $this->output( "...ll_lang is up-to-date.\n" );
1042                 }
1043         }
1044
1045         protected function doUserNewTalkTimestampNotNull() {
1046                 if ( !$this->doTable( 'user_newtalk' ) ) {
1047                         return true;
1048                 }
1049
1050                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_last_timestamp' );
1051                 if ( $info === false ) {
1052                         return;
1053                 }
1054                 if ( $info->isNullable() ) {
1055                         $this->output( "...user_last_timestamp is already nullable.\n" );
1056
1057                         return;
1058                 }
1059
1060                 $this->applyPatch(
1061                         'patch-user-newtalk-timestamp-null.sql',
1062                         false,
1063                         'Making user_last_timestamp nullable'
1064                 );
1065         }
1066
1067         protected function doIwlinksIndexNonUnique() {
1068                 $info = $this->db->indexInfo( 'iwlinks', 'iwl_prefix_title_from' );
1069                 if ( is_array( $info ) && $info[0]->Non_unique ) {
1070                         $this->output( "...iwl_prefix_title_from index is already non-UNIQUE.\n" );
1071
1072                         return true;
1073                 }
1074                 if ( $this->skipSchema ) {
1075                         $this->output( "...skipping schema change (making iwl_prefix_title_from index non-UNIQUE).\n" );
1076
1077                         return false;
1078                 }
1079
1080                 return $this->applyPatch(
1081                         'patch-iwl_prefix_title_from-non-unique.sql',
1082                         false,
1083                         'Making iwl_prefix_title_from index non-UNIQUE'
1084                 );
1085         }
1086
1087         protected function doUserNewTalkUseridUnsigned() {
1088                 if ( !$this->doTable( 'user_newtalk' ) ) {
1089                         return true;
1090                 }
1091
1092                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_id' );
1093                 if ( $info === false ) {
1094                         return true;
1095                 }
1096                 if ( $info->isUnsigned() ) {
1097                         $this->output( "...user_id is already unsigned int.\n" );
1098
1099                         return true;
1100                 }
1101
1102                 return $this->applyPatch(
1103                         'patch-user-newtalk-userid-unsigned.sql',
1104                         false,
1105                         'Making user_id unsigned int'
1106                 );
1107         }
1108
1109         protected function doRevisionPageRevIndexNonUnique() {
1110                 if ( !$this->doTable( 'revision' ) ) {
1111                         return true;
1112                 } elseif ( !$this->db->indexExists( 'revision', 'rev_page_id' ) ) {
1113                         $this->output( "...rev_page_id index not found on revision.\n" );
1114                         return true;
1115                 }
1116
1117                 if ( !$this->db->indexUnique( 'revision', 'rev_page_id' ) ) {
1118                         $this->output( "...rev_page_id index already non-unique.\n" );
1119                         return true;
1120                 }
1121
1122                 return $this->applyPatch(
1123                         'patch-revision-page-rev-index-nonunique.sql',
1124                         false,
1125                         'Making rev_page_id index non-unique'
1126                 );
1127         }
1128
1129         public function getSchemaVars() {
1130                 global $wgDBTableOptions;
1131
1132                 $vars = [];
1133                 $vars['wgDBTableOptions'] = str_replace( 'TYPE', 'ENGINE', $wgDBTableOptions );
1134                 $vars['wgDBTableOptions'] = str_replace(
1135                         'CHARSET=mysql4',
1136                         'CHARSET=binary',
1137                         $vars['wgDBTableOptions']
1138                 );
1139
1140                 return $vars;
1141         }
1142 }