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 use Wikimedia\Rdbms\Field;
  24 use Wikimedia\Rdbms\MySQLField;
  25 use MediaWiki\MediaWikiServices;
  26
  27 /**
  28  * Mysql update list and mysql-specific update functions.
  29  *
  30  * @ingroup Deployment
  31  * @since 1.17
  32  */
  33 class MysqlUpdater extends DatabaseUpdater {
  34         protected function getCoreUpdateList() {
  35                 return [
  36                         [ 'disableContentHandlerUseDB' ],
  37
  38                         // 1.2
  39                         [ 'addField', 'ipblocks', 'ipb_id', 'patch-ipblocks.sql' ],
  40                         [ 'addField', 'ipblocks', 'ipb_expiry', 'patch-ipb_expiry.sql' ],
  41                         [ 'doInterwikiUpdate' ],
  42                         [ 'doIndexUpdate' ],
  43                         [ 'addField', 'recentchanges', 'rc_type', 'patch-rc_type.sql' ],
  44                         [ 'addIndex', 'recentchanges', 'new_name_timestamp', 'patch-rc-newindex.sql' ],
  45
  46                         // 1.3
  47                         [ 'addField', 'user', 'user_real_name', 'patch-user-realname.sql' ],
  48                         [ 'addTable', 'querycache', 'patch-querycache.sql' ],
  49                         [ 'addTable', 'objectcache', 'patch-objectcache.sql' ],
  50                         [ 'addTable', 'categorylinks', 'patch-categorylinks.sql' ],
  51                         [ 'doOldLinksUpdate' ],
  52                         [ 'doFixAncientImagelinks' ],
  53                         [ 'addField', 'recentchanges', 'rc_ip', 'patch-rc_ip.sql' ],
  54
  55                         // 1.4
  56                         [ 'addIndex', 'image', 'PRIMARY', 'patch-image_name_primary.sql' ],
  57                         [ 'addField', 'recentchanges', 'rc_id', 'patch-rc_id.sql' ],
  58                         [ 'addField', 'recentchanges', 'rc_patrolled', 'patch-rc-patrol.sql' ],
  59                         [ 'addTable', 'logging', 'patch-logging.sql' ],
  60                         [ 'addField', 'user', 'user_token', 'patch-user_token.sql' ],
  61                         [ 'addField', 'watchlist', 'wl_notificationtimestamp', 'patch-email-notification.sql' ],
  62                         [ 'doWatchlistUpdate' ],
  63                         [ 'dropField', 'user', 'user_emailauthenticationtimestamp',
  64                                 'patch-email-authentication.sql' ],
  65
  66                         // 1.5
  67                         [ 'doSchemaRestructuring' ],
  68                         [ 'addField', 'logging', 'log_params', 'patch-log_params.sql' ],
  69                         [ 'checkBin', 'logging', 'log_title', 'patch-logging-title.sql', ],
  70                         [ 'addField', 'archive', 'ar_rev_id', 'patch-archive-rev_id.sql' ],
  71                         [ 'addField', 'page', 'page_len', 'patch-page_len.sql' ],
  72                         [ 'dropField', 'revision', 'inverse_timestamp', 'patch-inverse_timestamp.sql' ],
  73                         [ 'addField', 'revision', 'rev_text_id', 'patch-rev_text_id.sql' ],
  74                         [ 'addField', 'revision', 'rev_deleted', 'patch-rev_deleted.sql' ],
  75                         [ 'addField', 'image', 'img_width', 'patch-img_width.sql' ],
  76                         [ 'addField', 'image', 'img_metadata', 'patch-img_metadata.sql' ],
  77                         [ 'addField', 'user', 'user_email_token', 'patch-user_email_token.sql' ],
  78                         [ 'addField', 'archive', 'ar_text_id', 'patch-archive-text_id.sql' ],
  79                         [ 'doNamespaceSize' ],
  80                         [ 'addField', 'image', 'img_media_type', 'patch-img_media_type.sql' ],
  81                         [ 'doPagelinksUpdate' ],
  82                         [ 'dropField', 'image', 'img_type', 'patch-drop_img_type.sql' ],
  83                         [ 'doUserUniqueUpdate' ],
  84                         [ 'doUserGroupsUpdate' ],
  85                         [ 'addField', 'site_stats', 'ss_total_pages', 'patch-ss_total_articles.sql' ],
  86                         [ 'addTable', 'user_newtalk', 'patch-usernewtalk2.sql' ],
  87                         [ 'addTable', 'transcache', 'patch-transcache.sql' ],
  88                         [ 'addField', 'interwiki', 'iw_trans', 'patch-interwiki-trans.sql' ],
  89
  90                         // 1.6
  91                         [ 'doWatchlistNull' ],
  92                         [ 'addIndex', 'logging', 'times', 'patch-logging-times-index.sql' ],
  93                         [ 'addField', 'ipblocks', 'ipb_range_start', 'patch-ipb_range_start.sql' ],
  94                         [ 'doPageRandomUpdate' ],
  95                         [ 'addField', 'user', 'user_registration', 'patch-user_registration.sql' ],
  96                         [ 'doTemplatelinksUpdate' ],
  97                         [ 'addTable', 'externallinks', 'patch-externallinks.sql' ],
  98                         [ 'addTable', 'job', 'patch-job.sql' ],
  99                         [ 'addField', 'site_stats', 'ss_images', 'patch-ss_images.sql' ],
 100                         [ 'addTable', 'langlinks', 'patch-langlinks.sql' ],
 101                         [ 'addTable', 'querycache_info', 'patch-querycacheinfo.sql' ],
 102                         [ 'addTable', 'filearchive', 'patch-filearchive.sql' ],
 103                         [ 'addField', 'ipblocks', 'ipb_anon_only', 'patch-ipb_anon_only.sql' ],
 104                         [ 'addIndex', 'recentchanges', 'rc_ns_usertext', 'patch-recentchanges-utindex.sql' ],
 105                         [ 'addIndex', 'recentchanges', 'rc_user_text', 'patch-rc_user_text-index.sql' ],
 106
 107                         // 1.9
 108                         [ 'addField', 'user', 'user_newpass_time', 'patch-user_newpass_time.sql' ],
 109                         [ 'addTable', 'redirect', 'patch-redirect.sql' ],
 110                         [ 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ],
 111                         [ 'addField', 'ipblocks', 'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ],
 112                         [ 'doBacklinkingIndicesUpdate' ],
 113                         [ 'addField', 'recentchanges', 'rc_old_len', 'patch-rc_len.sql' ],
 114                         [ 'addField', 'user', 'user_editcount', 'patch-user_editcount.sql' ],
 115
 116                         // 1.10
 117                         [ 'doRestrictionsUpdate' ],
 118                         [ 'addField', 'logging', 'log_id', 'patch-log_id.sql' ],
 119                         [ 'addField', 'revision', 'rev_parent_id', 'patch-rev_parent_id.sql' ],
 120                         [ 'addField', 'page_restrictions', 'pr_id', 'patch-page_restrictions_sortkey.sql' ],
 121                         [ 'addField', 'revision', 'rev_len', 'patch-rev_len.sql' ],
 122                         [ 'addField', 'recentchanges', 'rc_deleted', 'patch-rc_deleted.sql' ],
 123                         [ 'addField', 'logging', 'log_deleted', 'patch-log_deleted.sql' ],
 124                         [ 'addField', 'archive', 'ar_deleted', 'patch-ar_deleted.sql' ],
 125                         [ 'addField', 'ipblocks', 'ipb_deleted', 'patch-ipb_deleted.sql' ],
 126                         [ 'addField', 'filearchive', 'fa_deleted', 'patch-fa_deleted.sql' ],
 127                         [ 'addField', 'archive', 'ar_len', 'patch-ar_len.sql' ],
 128
 129                         // 1.11
 130                         [ 'addField', 'ipblocks', 'ipb_block_email', 'patch-ipb_emailban.sql' ],
 131                         [ 'doCategorylinksIndicesUpdate' ],
 132                         [ 'addField', 'oldimage', 'oi_metadata', 'patch-oi_metadata.sql' ],
 133                         [ 'addIndex', 'archive', 'usertext_timestamp', 'patch-archive-user-index.sql' ],
 134                         [ 'addIndex', 'image', 'img_usertext_timestamp', 'patch-image-user-index.sql' ],
 135                         [ 'addIndex', 'oldimage', 'oi_usertext_timestamp', 'patch-oldimage-user-index.sql' ],
 136                         [ 'addField', 'archive', 'ar_page_id', 'patch-archive-page_id.sql' ],
 137                         [ 'addField', 'image', 'img_sha1', 'patch-img_sha1.sql' ],
 138
 139                         // 1.12
 140                         [ 'addTable', 'protected_titles', 'patch-protected_titles.sql' ],
 141
 142                         // 1.13
 143                         [ 'addField', 'ipblocks', 'ipb_by_text', 'patch-ipb_by_text.sql' ],
 144                         [ 'addTable', 'page_props', 'patch-page_props.sql' ],
 145                         [ 'addTable', 'updatelog', 'patch-updatelog.sql' ],
 146                         [ 'addTable', 'category', 'patch-category.sql' ],
 147                         [ 'doCategoryPopulation' ],
 148                         [ 'addField', 'archive', 'ar_parent_id', 'patch-ar_parent_id.sql' ],
 149                         [ 'addField', 'user_newtalk', 'user_last_timestamp', 'patch-user_last_timestamp.sql' ],
 150                         [ 'doPopulateParentId' ],
 151                         [ 'checkBin', 'protected_titles', 'pt_title', 'patch-pt_title-encoding.sql', ],
 152                         [ 'doMaybeProfilingMemoryUpdate' ],
 153                         [ 'doFilearchiveIndicesUpdate' ],
 154
 155                         // 1.14
 156                         [ 'addField', 'site_stats', 'ss_active_users', 'patch-ss_active_users.sql' ],
 157                         [ 'doActiveUsersInit' ],
 158                         [ 'addField', 'ipblocks', 'ipb_allow_usertalk', 'patch-ipb_allow_usertalk.sql' ],
 159
 160                         // 1.15
 161                         [ 'addTable', 'change_tag', 'patch-change_tag.sql' ],
 162                         [ 'addTable', 'tag_summary', 'patch-tag_summary.sql' ],
 163                         [ 'addTable', 'valid_tag', 'patch-valid_tag.sql' ],
 164
 165                         // 1.16
 166                         [ 'addTable', 'user_properties', 'patch-user_properties.sql' ],
 167                         [ 'addTable', 'log_search', 'patch-log_search.sql' ],
 168                         [ 'addField', 'logging', 'log_user_text', 'patch-log_user_text.sql' ],
 169                         # listed separately from the previous update because 1.16 was released without this update
 170                         [ 'doLogUsertextPopulation' ],
 171                         [ 'doLogSearchPopulation' ],
 172                         [ 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ],
 173                         [ 'addIndex', 'log_search', 'ls_field_val', 'patch-log_search-rename-index.sql' ],
 174                         [ 'addIndex', 'change_tag', 'change_tag_rc_tag', 'patch-change_tag-indexes.sql' ],
 175                         [ 'addField', 'redirect', 'rd_interwiki', 'patch-rd_interwiki.sql' ],
 176                         [ 'doUpdateTranscacheField' ],
 177                         [ 'doUpdateMimeMinorField' ],
 178
 179                         // 1.17
 180                         [ 'addTable', 'iwlinks', 'patch-iwlinks.sql' ],
 181                         [ 'addIndex', 'iwlinks', 'iwl_prefix_title_from', 'patch-rename-iwl_prefix.sql' ],
 182                         [ 'addField', 'updatelog', 'ul_value', 'patch-ul_value.sql' ],
 183                         [ 'addField', 'interwiki', 'iw_api', 'patch-iw_api_and_wikiid.sql' ],
 184                         [ 'dropIndex', 'iwlinks', 'iwl_prefix', 'patch-kill-iwl_prefix.sql' ],
 185                         [ 'addField', 'categorylinks', 'cl_collation', 'patch-categorylinks-better-collation.sql' ],
 186                         [ 'doClFieldsUpdate' ],
 187                         [ 'addTable', 'module_deps', 'patch-module_deps.sql' ],
 188                         [ 'dropIndex', 'archive', 'ar_page_revid', 'patch-archive_kill_ar_page_revid.sql' ],
 189                         [ 'addIndex', 'archive', 'ar_revid', 'patch-archive_ar_revid.sql' ],
 190                         [ 'doLangLinksLengthUpdate' ],
 191
 192                         // 1.18
 193                         [ 'doUserNewTalkTimestampNotNull' ],
 194                         [ 'addIndex', 'user', 'user_email', 'patch-user_email_index.sql' ],
 195                         [ 'modifyField', 'user_properties', 'up_property', 'patch-up_property.sql' ],
 196                         [ 'addTable', 'uploadstash', 'patch-uploadstash.sql' ],
 197                         [ 'addTable', 'user_former_groups', 'patch-user_former_groups.sql' ],
 198
 199                         // 1.19
 200                         [ 'addIndex', 'logging', 'type_action', 'patch-logging-type-action-index.sql' ],
 201                         [ 'addField', 'revision', 'rev_sha1', 'patch-rev_sha1.sql' ],
 202                         [ 'doMigrateUserOptions' ],
 203                         [ 'dropField', 'user', 'user_options', 'patch-drop-user_options.sql' ],
 204                         [ 'addField', 'archive', 'ar_sha1', 'patch-ar_sha1.sql' ],
 205                         [ 'addIndex', 'page', 'page_redirect_namespace_len',
 206                                 'patch-page_redirect_namespace_len.sql' ],
 207                         [ 'addField', 'uploadstash', 'us_chunk_inx', 'patch-uploadstash_chunk.sql' ],
 208                         [ 'addfield', 'job', 'job_timestamp', 'patch-jobs-add-timestamp.sql' ],
 209
 210                         // 1.20
 211                         [ 'addIndex', 'revision', 'page_user_timestamp', 'patch-revision-user-page-index.sql' ],
 212                         [ 'addField', 'ipblocks', 'ipb_parent_block_id', 'patch-ipb-parent-block-id.sql' ],
 213                         [ 'addIndex', 'ipblocks', 'ipb_parent_block_id', 'patch-ipb-parent-block-id-index.sql' ],
 214                         [ 'dropField', 'category', 'cat_hidden', 'patch-cat_hidden.sql' ],
 215
 216                         // 1.21
 217                         [ 'addField', 'revision', 'rev_content_format', 'patch-revision-rev_content_format.sql' ],
 218                         [ 'addField', 'revision', 'rev_content_model', 'patch-revision-rev_content_model.sql' ],
 219                         [ 'addField', 'archive', 'ar_content_format', 'patch-archive-ar_content_format.sql' ],
 220                         [ 'addField', 'archive', 'ar_content_model', 'patch-archive-ar_content_model.sql' ],
 221                         [ 'addField', 'page', 'page_content_model', 'patch-page-page_content_model.sql' ],
 222                         [ 'enableContentHandlerUseDB' ],
 223                         [ 'dropField', 'site_stats', 'ss_admins', 'patch-drop-ss_admins.sql' ],
 224                         [ 'dropField', 'recentchanges', 'rc_moved_to_title', 'patch-rc_moved.sql' ],
 225                         [ 'addTable', 'sites', 'patch-sites.sql' ],
 226                         [ 'addField', 'filearchive', 'fa_sha1', 'patch-fa_sha1.sql' ],
 227                         [ 'addField', 'job', 'job_token', 'patch-job_token.sql' ],
 228                         [ 'addField', 'job', 'job_attempts', 'patch-job_attempts.sql' ],
 229                         [ 'doEnableProfiling' ],
 230                         [ 'addField', 'uploadstash', 'us_props', 'patch-uploadstash-us_props.sql' ],
 231                         [ 'modifyField', 'user_groups', 'ug_group', 'patch-ug_group-length-increase-255.sql' ],
 232                         [ 'modifyField', 'user_former_groups', 'ufg_group',
 233                                 'patch-ufg_group-length-increase-255.sql' ],
 234                         [ 'addIndex', 'page_props', 'pp_propname_page',
 235                                 'patch-page_props-propname-page-index.sql' ],
 236                         [ 'addIndex', 'image', 'img_media_mime', 'patch-img_media_mime-index.sql' ],
 237
 238                         // 1.22
 239                         [ 'doIwlinksIndexNonUnique' ],
 240                         [ 'addIndex', 'iwlinks', 'iwl_prefix_from_title',
 241                                 'patch-iwlinks-from-title-index.sql' ],
 242                         [ 'addField', 'archive', 'ar_id', 'patch-archive-ar_id.sql' ],
 243                         [ 'addField', 'externallinks', 'el_id', 'patch-externallinks-el_id.sql' ],
 244
 245                         // 1.23
 246                         [ 'addField', 'recentchanges', 'rc_source', 'patch-rc_source.sql' ],
 247                         [ 'addIndex', 'logging', 'log_user_text_type_time',
 248                                 'patch-logging_user_text_type_time_index.sql' ],
 249                         [ 'addIndex', 'logging', 'log_user_text_time', 'patch-logging_user_text_time_index.sql' ],
 250                         [ 'addField', 'page', 'page_links_updated', 'patch-page_links_updated.sql' ],
 251                         [ 'addField', 'user', 'user_password_expires', 'patch-user_password_expire.sql' ],
 252
 253                         // 1.24
 254                         [ 'addField', 'page_props', 'pp_sortkey', 'patch-pp_sortkey.sql' ],
 255                         [ 'dropField', 'recentchanges', 'rc_cur_time', 'patch-drop-rc_cur_time.sql' ],
 256                         [ 'addIndex', 'watchlist', 'wl_user_notificationtimestamp',
 257                                 'patch-watchlist-user-notificationtimestamp-index.sql' ],
 258                         [ 'addField', 'page', 'page_lang', 'patch-page_lang.sql' ],
 259                         [ 'addField', 'pagelinks', 'pl_from_namespace', 'patch-pl_from_namespace.sql' ],
 260                         [ 'addField', 'templatelinks', 'tl_from_namespace', 'patch-tl_from_namespace.sql' ],
 261                         [ 'addField', 'imagelinks', 'il_from_namespace', 'patch-il_from_namespace.sql' ],
 262                         [ 'modifyField', 'image', 'img_major_mime',
 263                                 'patch-img_major_mime-chemical.sql' ],
 264                         [ 'modifyField', 'oldimage', 'oi_major_mime',
 265                                 'patch-oi_major_mime-chemical.sql' ],
 266                         [ 'modifyField', 'filearchive', 'fa_major_mime',
 267                                 'patch-fa_major_mime-chemical.sql' ],
 268
 269                         // 1.25
 270                         [ 'doUserNewTalkUseridUnsigned' ],
 271                         // note this patch covers other _comment and _description fields too
 272                         [ 'modifyField', 'recentchanges', 'rc_comment', 'patch-editsummary-length.sql' ],
 273
 274                         // 1.26
 275                         [ 'dropTable', 'hitcounter' ],
 276                         [ 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ],
 277                         [ 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ],
 278
 279                         // 1.27
 280                         [ 'dropTable', 'msg_resource_links' ],
 281                         [ 'dropTable', 'msg_resource' ],
 282                         [ 'addTable', 'bot_passwords', 'patch-bot_passwords.sql' ],
 283                         [ 'addField', 'watchlist', 'wl_id', 'patch-watchlist-wl_id.sql' ],
 284                         [ 'dropIndex', 'categorylinks', 'cl_collation', 'patch-kill-cl_collation_index.sql' ],
 285                         [ 'addIndex', 'categorylinks', 'cl_collation_ext',
 286                                 'patch-add-cl_collation_ext_index.sql' ],
 287                         [ 'doCollationUpdate' ],
 288
 289                         // 1.28
 290                         [ 'addIndex', 'recentchanges', 'rc_name_type_patrolled_timestamp',
 291                                 'patch-add-rc_name_type_patrolled_timestamp_index.sql' ],
 292                         [ 'doRevisionPageRevIndexNonUnique' ],
 293                         [ 'doNonUniquePlTlIl' ],
 294                         [ 'addField', 'change_tag', 'ct_id', 'patch-change_tag-ct_id.sql' ],
 295                         [ 'addField', 'tag_summary', 'ts_id', 'patch-tag_summary-ts_id.sql' ],
 296                         [ 'modifyField', 'recentchanges', 'rc_ip', 'patch-rc_ip_modify.sql' ],
 297
 298                         // 1.29
 299                         [ 'addField', 'externallinks', 'el_index_60', 'patch-externallinks-el_index_60.sql' ],
 300                         [ 'dropIndex', 'user_groups', 'ug_user_group', 'patch-user_groups-primary-key.sql' ],
 301                         [ 'addField', 'user_groups', 'ug_expiry', 'patch-user_groups-ug_expiry.sql' ],
 302                 ];
 303         }
 304
 305         /**
 306          * 1.4 betas were missing the 'binary' marker from logging.log_title,
 307          * which causes a collation mismatch error on joins in MySQL 4.1.
 308          *
 309          * @param string $table Table name
 310          * @param string $field Field name to check
 311          * @param string $patchFile Path to the patch to correct the field
 312          * @return bool
 313          */
 314         protected function checkBin( $table, $field, $patchFile ) {
 315                 if ( !$this->doTable( $table ) ) {
 316                         return true;
 317                 }
 318
 319                 /** @var MySQLField $fieldInfo */
 320                 $fieldInfo = $this->db->fieldInfo( $table, $field );
 321                 if ( $fieldInfo->isBinary() ) {
 322                         $this->output( "...$table table has correct $field encoding.\n" );
 323                 } else {
 324                         $this->applyPatch( $patchFile, false, "Fixing $field encoding on $table table" );
 325                 }
 326         }
 327
 328         /**
 329          * Check whether an index contain a field
 330          *
 331          * @param string $table Table name
 332          * @param string $index Index name to check
 333          * @param string $field Field that should be in the index
 334          * @return bool
 335          */
 336         protected function indexHasField( $table, $index, $field ) {
 337                 if ( !$this->doTable( $table ) ) {
 338                         return true;
 339                 }
 340
 341                 $info = $this->db->indexInfo( $table, $index, __METHOD__ );
 342                 if ( $info ) {
 343                         foreach ( $info as $row ) {
 344                                 if ( $row->Column_name == $field ) {
 345                                         $this->output( "...index $index on table $table includes field $field.\n" );
 346
 347                                         return true;
 348                                 }
 349                         }
 350                 }
 351                 $this->output( "...index $index on table $table has no field $field; added.\n" );
 352
 353                 return false;
 354         }
 355
 356         /**
 357          * Check that interwiki table exists; if it doesn't source it
 358          */
 359         protected function doInterwikiUpdate() {
 360                 global $IP;
 361
 362                 if ( !$this->doTable( 'interwiki' ) ) {
 363                         return true;
 364                 }
 365
 366                 if ( $this->db->tableExists( "interwiki", __METHOD__ ) ) {
 367                         $this->output( "...already have interwiki table\n" );
 368
 369                         return;
 370                 }
 371
 372                 $this->applyPatch( 'patch-interwiki.sql', false, 'Creating interwiki table' );
 373                 $this->applyPatch(
 374                         "$IP/maintenance/interwiki.sql",
 375                         true,
 376                         'Adding default interwiki definitions'
 377                 );
 378         }
 379
 380         /**
 381          * Check that proper indexes are in place
 382          */
 383         protected function doIndexUpdate() {
 384                 $meta = $this->db->fieldInfo( 'recentchanges', 'rc_timestamp' );
 385                 if ( $meta === false ) {
 386                         throw new MWException( 'Missing rc_timestamp field of recentchanges table. Should not happen.' );
 387                 }
 388                 if ( $meta->isMultipleKey() ) {
 389                         $this->output( "...indexes seem up to 20031107 standards.\n" );
 390
 391                         return;
 392                 }
 393
 394                 $this->applyPatch( 'patch-indexes.sql', true, "Updating indexes to 20031107" );
 395         }
 396
 397         protected function doOldLinksUpdate() {
 398                 $cl = $this->maintenance->runChild( 'ConvertLinks' );
 399                 $cl->execute();
 400         }
 401
 402         protected function doFixAncientImagelinks() {
 403                 $info = $this->db->fieldInfo( 'imagelinks', 'il_from' );
 404                 if ( !$info || $info->type() !== 'string' ) {
 405                         $this->output( "...il_from OK\n" );
 406
 407                         return;
 408                 }
 409
 410                 $applied = $this->applyPatch(
 411                         'patch-fix-il_from.sql',
 412                         false,
 413                         'Fixing ancient broken imagelinks table.'
 414                 );
 415
 416                 if ( $applied ) {
 417                         $this->output( "NOTE: you will have to run maintenance/refreshLinks.php after this." );
 418                 }
 419         }
 420
 421         /**
 422          * Check if we need to add talk page rows to the watchlist
 423          */
 424         function doWatchlistUpdate() {
 425                 $talk = $this->db->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', __METHOD__ );
 426                 $nontalk = $this->db->selectField(
 427                         'watchlist',
 428                         'count(*)',
 429                         'NOT (wl_namespace & 1)',
 430                         __METHOD__
 431                 );
 432                 if ( $talk == $nontalk ) {
 433                         $this->output( "...watchlist talk page rows already present.\n" );
 434
 435                         return;
 436                 }
 437
 438                 $this->output( "Adding missing watchlist talk page rows... " );
 439                 $this->db->insertSelect( 'watchlist', 'watchlist',
 440                         [
 441                                 'wl_user' => 'wl_user',
 442                                 'wl_namespace' => 'wl_namespace | 1',
 443                                 'wl_title' => 'wl_title',
 444                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 445                         ], [ 'NOT (wl_namespace & 1)' ], __METHOD__, 'IGNORE' );
 446                 $this->output( "done.\n" );
 447
 448                 $this->output( "Adding missing watchlist subject page rows... " );
 449                 $this->db->insertSelect( 'watchlist', 'watchlist',
 450                         [
 451                                 'wl_user' => 'wl_user',
 452                                 'wl_namespace' => 'wl_namespace & ~1',
 453                                 'wl_title' => 'wl_title',
 454                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 455                         ], [ 'wl_namespace & 1' ], __METHOD__, 'IGNORE' );
 456                 $this->output( "done.\n" );
 457         }
 458
 459         function doSchemaRestructuring() {
 460                 if ( $this->db->tableExists( 'page', __METHOD__ ) ) {
 461                         $this->output( "...page table already exists.\n" );
 462
 463                         return;
 464                 }
 465
 466                 $this->output( "...converting from cur/old to page/revision/text DB structure.\n" );
 467                 $this->output( wfTimestamp( TS_DB ) );
 468                 $this->output( "......checking for duplicate entries.\n" );
 469
 470                 list( $cur, $old, $page, $revision, $text ) = $this->db->tableNamesN(
 471                         'cur',
 472                         'old',
 473                         'page',
 474                         'revision',
 475                         'text'
 476                 );
 477
 478                 $rows = $this->db->query( "
 479                         SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 480                         FROM $cur
 481                         GROUP BY cur_title, cur_namespace
 482                         HAVING c>1",
 483                         __METHOD__
 484                 );
 485
 486                 if ( $rows->numRows() > 0 ) {
 487                         $this->output( wfTimestamp( TS_DB ) );
 488                         $this->output( "......<b>Found duplicate entries</b>\n" );
 489                         $this->output( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 490                         $duplicate = [];
 491                         foreach ( $rows as $row ) {
 492                                 if ( !isset( $duplicate[$row->cur_namespace] ) ) {
 493                                         $duplicate[$row->cur_namespace] = [];
 494                                 }
 495
 496                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 497                                 $this->output( sprintf(
 498                                         "      %-60s %3s %5s\n",
 499                                         $row->cur_title, $row->cur_namespace,
 500                                         $row->c
 501                                 ) );
 502                         }
 503                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 504                         $firstCond = true;
 505                         foreach ( $duplicate as $ns => $titles ) {
 506                                 if ( $firstCond ) {
 507                                         $firstCond = false;
 508                                 } else {
 509                                         $sql .= ' OR ';
 510                                 }
 511                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 512                                 $first = true;
 513                                 foreach ( $titles as $t ) {
 514                                         if ( $first ) {
 515                                                 $sql .= $this->db->addQuotes( $t );
 516                                                 $first = false;
 517                                         } else {
 518                                                 $sql .= ', ' . $this->db->addQuotes( $t );
 519                                         }
 520                                 }
 521                                 $sql .= ") ) \n";
 522                         }
 523                         # By sorting descending, the most recent entry will be the first in the list.
 524                         # All following entries will be deleted by the next while-loop.
 525                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 526
 527                         $rows = $this->db->query( $sql, __METHOD__ );
 528
 529                         $prev_title = $prev_namespace = false;
 530                         $deleteId = [];
 531
 532                         foreach ( $rows as $row ) {
 533                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 534                                         $deleteId[] = $row->cur_id;
 535                                 }
 536                                 $prev_title = $row->cur_title;
 537                                 $prev_namespace = $row->cur_namespace;
 538                         }
 539                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . implode( ',', $deleteId ) . ')';
 540                         $this->db->query( $sql, __METHOD__ );
 541                         $this->output( wfTimestamp( TS_DB ) );
 542                         $this->output( "......<b>Deleted</b> " . $this->db->affectedRows() . " records.\n" );
 543                 }
 544
 545                 $this->output( wfTimestamp( TS_DB ) );
 546                 $this->output( "......Creating tables.\n" );
 547                 $this->db->query( "CREATE TABLE $page (
 548                         page_id int(8) unsigned NOT NULL auto_increment,
 549                         page_namespace int NOT NULL,
 550                         page_title varchar(255) binary NOT NULL,
 551                         page_restrictions tinyblob NOT NULL,
 552                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 553                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 554                         page_random real unsigned NOT NULL,
 555                         page_touched char(14) binary NOT NULL default '',
 556                         page_latest int(8) unsigned NOT NULL,
 557                         page_len int(8) unsigned NOT NULL,
 558
 559                         PRIMARY KEY page_id (page_id),
 560                         UNIQUE INDEX name_title (page_namespace,page_title),
 561                         INDEX (page_random),
 562                         INDEX (page_len)
 563                         ) ENGINE=InnoDB", __METHOD__ );
 564                 $this->db->query( "CREATE TABLE $revision (
 565                         rev_id int(8) unsigned NOT NULL auto_increment,
 566                         rev_page int(8) unsigned NOT NULL,
 567                         rev_comment tinyblob NOT NULL,
 568                         rev_user int(5) unsigned NOT NULL default '0',
 569                         rev_user_text varchar(255) binary NOT NULL default '',
 570                         rev_timestamp char(14) binary NOT NULL default '',
 571                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 572                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 573                         rev_len int(8) unsigned,
 574                         rev_parent_id int(8) unsigned default NULL,
 575                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 576                         UNIQUE INDEX rev_id (rev_id),
 577                         INDEX rev_timestamp (rev_timestamp),
 578                         INDEX page_timestamp (rev_page,rev_timestamp),
 579                         INDEX user_timestamp (rev_user,rev_timestamp),
 580                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 581                         ) ENGINE=InnoDB", __METHOD__ );
 582
 583                 $this->output( wfTimestamp( TS_DB ) );
 584                 $this->output( "......Locking tables.\n" );
 585                 $this->db->query(
 586                         "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE",
 587                         __METHOD__
 588                 );
 589
 590                 $maxold = intval( $this->db->selectField( 'old', 'max(old_id)', '', __METHOD__ ) );
 591                 $this->output( wfTimestamp( TS_DB ) );
 592                 $this->output( "......maxold is {$maxold}\n" );
 593
 594                 $this->output( wfTimestamp( TS_DB ) );
 595                 global $wgLegacySchemaConversion;
 596                 if ( $wgLegacySchemaConversion ) {
 597                         // Create HistoryBlobCurStub entries.
 598                         // Text will be pulled from the leftover 'cur' table at runtime.
 599                         $this->output( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 600                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 601                         $cur_flags = "'object'";
 602                 } else {
 603                         // Copy all cur text in immediately: this may take longer but avoids
 604                         // having to keep an extra table around.
 605                         $this->output( "......Moving text from cur.\n" );
 606                         $cur_text = 'cur_text';
 607                         $cur_flags = "''";
 608                 }
 609                 $this->db->query(
 610                         "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user,
 611                                 old_user_text, old_timestamp, old_minor_edit, old_flags)
 612                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text,
 613                                 cur_timestamp, cur_minor_edit, $cur_flags
 614                         FROM $cur",
 615                         __METHOD__
 616                 );
 617
 618                 $this->output( wfTimestamp( TS_DB ) );
 619                 $this->output( "......Setting up revision table.\n" );
 620                 $this->db->query(
 621                         "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user,
 622                                 rev_user_text, rev_timestamp, rev_minor_edit)
 623                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 624                                 old_timestamp, old_minor_edit
 625                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title",
 626                         __METHOD__
 627                 );
 628
 629                 $this->output( wfTimestamp( TS_DB ) );
 630                 $this->output( "......Setting up page table.\n" );
 631                 $this->db->query(
 632                         "INSERT INTO $page (page_id, page_namespace, page_title,
 633                                 page_restrictions, page_is_redirect, page_is_new, page_random,
 634                                 page_touched, page_latest, page_len)
 635                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions,
 636                                 cur_is_redirect, cur_is_new, cur_random, cur_touched, rev_id, LENGTH(cur_text)
 637                         FROM $cur,$revision
 638                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}",
 639                         __METHOD__
 640                 );
 641
 642                 $this->output( wfTimestamp( TS_DB ) );
 643                 $this->output( "......Unlocking tables.\n" );
 644                 $this->db->query( "UNLOCK TABLES", __METHOD__ );
 645
 646                 $this->output( wfTimestamp( TS_DB ) );
 647                 $this->output( "......Renaming old.\n" );
 648                 $this->db->query( "ALTER TABLE $old RENAME TO $text", __METHOD__ );
 649
 650                 $this->output( wfTimestamp( TS_DB ) );
 651                 $this->output( "...done.\n" );
 652         }
 653
 654         protected function doNamespaceSize() {
 655                 $tables = [
 656                         'page' => 'page',
 657                         'archive' => 'ar',
 658                         'recentchanges' => 'rc',
 659                         'watchlist' => 'wl',
 660                         'querycache' => 'qc',
 661                         'logging' => 'log',
 662                 ];
 663                 foreach ( $tables as $table => $prefix ) {
 664                         $field = $prefix . '_namespace';
 665
 666                         $tablename = $this->db->tableName( $table );
 667                         $result = $this->db->query( "SHOW COLUMNS FROM $tablename LIKE '$field'", __METHOD__ );
 668                         $info = $this->db->fetchObject( $result );
 669
 670                         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 671                                 $this->output( "...$field is already a full int ($info->Type).\n" );
 672                         } else {
 673                                 $this->output( "Promoting $field from $info->Type to int... " );
 674                                 $this->db->query( "ALTER TABLE $tablename MODIFY $field int NOT NULL", __METHOD__ );
 675                                 $this->output( "done.\n" );
 676                         }
 677                 }
 678         }
 679
 680         protected function doPagelinksUpdate() {
 681                 if ( $this->db->tableExists( 'pagelinks', __METHOD__ ) ) {
 682                         $this->output( "...already have pagelinks table.\n" );
 683
 684                         return;
 685                 }
 686
 687                 $this->applyPatch(
 688                         'patch-pagelinks.sql',
 689                         false,
 690                         'Converting links and brokenlinks tables to pagelinks'
 691                 );
 692
 693                 global $wgContLang;
 694                 foreach ( $wgContLang->getNamespaces() as $ns => $name ) {
 695                         if ( $ns == 0 ) {
 696                                 continue;
 697                         }
 698
 699                         $this->output( "Cleaning up broken links for namespace $ns... " );
 700                         $this->db->update( 'pagelinks',
 701                                 [
 702                                         'pl_namespace' => $ns,
 703                                         "pl_title = TRIM(LEADING {$this->db->addQuotes( "$name:" )} FROM pl_title)",
 704                                 ],
 705                                 [
 706                                         'pl_namespace' => 0,
 707                                         'pl_title' . $this->db->buildLike( "$name:", $this->db->anyString() ),
 708                                 ],
 709                                 __METHOD__
 710                         );
 711                         $this->output( "done.\n" );
 712                 }
 713         }
 714
 715         protected function doUserUniqueUpdate() {
 716                 if ( !$this->doTable( 'user' ) ) {
 717                         return true;
 718                 }
 719
 720                 $duper = new UserDupes( $this->db, [ $this, 'output' ] );
 721                 if ( $duper->hasUniqueIndex() ) {
 722                         $this->output( "...already have unique user_name index.\n" );
 723
 724                         return;
 725                 }
 726
 727                 if ( !$duper->clearDupes() ) {
 728                         $this->output( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 729                 }
 730                 $this->applyPatch( 'patch-user_nameindex.sql', false, "Adding unique index on user_name" );
 731         }
 732
 733         protected function doUserGroupsUpdate() {
 734                 if ( !$this->doTable( 'user_groups' ) ) {
 735                         return true;
 736                 }
 737
 738                 if ( $this->db->tableExists( 'user_groups', __METHOD__ ) ) {
 739                         $info = $this->db->fieldInfo( 'user_groups', 'ug_group' );
 740                         if ( $info->type() == 'int' ) {
 741                                 $oldug = $this->db->tableName( 'user_groups' );
 742                                 $newug = $this->db->tableName( 'user_groups_bogus' );
 743                                 $this->output( "user_groups table exists but is in bogus intermediate " .
 744                                         "format. Renaming to $newug... " );
 745                                 $this->db->query( "ALTER TABLE $oldug RENAME TO $newug", __METHOD__ );
 746                                 $this->output( "done.\n" );
 747
 748                                 $this->applyPatch( 'patch-user_groups.sql', false, "Re-adding fresh user_groups table" );
 749
 750                                 $this->output( "***\n" );
 751                                 $this->output( "*** WARNING: You will need to manually fix up user " .
 752                                         "permissions in the user_groups\n" );
 753                                 $this->output( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 754                                 $this->output( "***\n" );
 755                         } else {
 756                                 $this->output( "...user_groups table exists and is in current format.\n" );
 757                         }
 758
 759                         return;
 760                 }
 761
 762                 $this->applyPatch( 'patch-user_groups.sql', false, "Adding user_groups table" );
 763
 764                 if ( !$this->db->tableExists( 'user_rights', __METHOD__ ) ) {
 765                         if ( $this->db->fieldExists( 'user', 'user_rights', __METHOD__ ) ) {
 766                                 $this->applyPatch(
 767                                         'patch-user_rights.sql',
 768                                         false,
 769                                         'Upgrading from a 1.3 or older database? Breaking out user_rights for conversion'
 770                                 );
 771                         } else {
 772                                 $this->output( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 773                                 $this->output( "*** You may need to manually configure some sysops by manipulating\n" );
 774                                 $this->output( "*** the user_groups table.\n" );
 775
 776                                 return;
 777                         }
 778                 }
 779
 780                 $this->output( "Converting user_rights table to user_groups... " );
 781                 $result = $this->db->select( 'user_rights',
 782                         [ 'ur_user', 'ur_rights' ],
 783                         [ "ur_rights != ''" ],
 784                         __METHOD__ );
 785
 786                 foreach ( $result as $row ) {
 787                         $groups = array_unique(
 788                                 array_map( 'trim',
 789                                         explode( ',', $row->ur_rights ) ) );
 790
 791                         foreach ( $groups as $group ) {
 792                                 $this->db->insert( 'user_groups',
 793                                         [
 794                                                 'ug_user' => $row->ur_user,
 795                                                 'ug_group' => $group ],
 796                                         __METHOD__ );
 797                         }
 798                 }
 799                 $this->output( "done.\n" );
 800         }
 801
 802         /**
 803          * Make sure wl_notificationtimestamp can be NULL,
 804          * and update old broken items.
 805          */
 806         protected function doWatchlistNull() {
 807                 $info = $this->db->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 808                 if ( !$info ) {
 809                         return;
 810                 }
 811                 if ( $info->isNullable() ) {
 812                         $this->output( "...wl_notificationtimestamp is already nullable.\n" );
 813
 814                         return;
 815                 }
 816
 817                 $this->applyPatch(
 818                         'patch-watchlist-null.sql',
 819                         false,
 820                         'Making wl_notificationtimestamp nullable'
 821                 );
 822         }
 823
 824         /**
 825          * Set page_random field to a random value where it is equals to 0.
 826          *
 827          * @see T5946
 828          */
 829         protected function doPageRandomUpdate() {
 830                 $page = $this->db->tableName( 'page' );
 831                 $this->db->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", __METHOD__ );
 832                 $rows = $this->db->affectedRows();
 833
 834                 if ( $rows ) {
 835                         $this->output( "Set page_random to a random value on $rows rows where it was set to 0\n" );
 836                 } else {
 837                         $this->output( "...no page_random rows needed to be set\n" );
 838                 }
 839         }
 840
 841         protected function doTemplatelinksUpdate() {
 842                 if ( $this->db->tableExists( 'templatelinks', __METHOD__ ) ) {
 843                         $this->output( "...templatelinks table already exists\n" );
 844
 845                         return;
 846                 }
 847
 848                 $this->applyPatch( 'patch-templatelinks.sql', false, "Creating templatelinks table" );
 849
 850                 $this->output( "Populating...\n" );
 851                 if ( wfGetLB()->getServerCount() > 1 ) {
 852                         // Slow, replication-friendly update
 853                         $res = $this->db->select( 'pagelinks', [ 'pl_from', 'pl_namespace', 'pl_title' ],
 854                                 [ 'pl_namespace' => NS_TEMPLATE ], __METHOD__ );
 855                         $count = 0;
 856                         foreach ( $res as $row ) {
 857                                 $count = ( $count + 1 ) % 100;
 858                                 if ( $count == 0 ) {
 859                                         $lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
 860                                         $lbFactory->waitForReplication( [ 'wiki' => wfWikiID() ] );
 861                                 }
 862                                 $this->db->insert( 'templatelinks',
 863                                         [
 864                                                 'tl_from' => $row->pl_from,
 865                                                 'tl_namespace' => $row->pl_namespace,
 866                                                 'tl_title' => $row->pl_title,
 867                                         ], __METHOD__
 868                                 );
 869                         }
 870                 } else {
 871                         // Fast update
 872                         $this->db->insertSelect( 'templatelinks', 'pagelinks',
 873                                 [
 874                                         'tl_from' => 'pl_from',
 875                                         'tl_namespace' => 'pl_namespace',
 876                                         'tl_title' => 'pl_title'
 877                                 ], [
 878                                         'pl_namespace' => 10
 879                                 ], __METHOD__
 880                         );
 881                 }
 882                 $this->output( "Done. Please run maintenance/refreshLinks.php for a more " .
 883                         "thorough templatelinks update.\n" );
 884         }
 885
 886         protected function doBacklinkingIndicesUpdate() {
 887                 if ( !$this->indexHasField( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 888                         !$this->indexHasField( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 889                         !$this->indexHasField( 'imagelinks', 'il_to', 'il_from' )
 890                 ) {
 891                         $this->applyPatch( 'patch-backlinkindexes.sql', false, "Updating backlinking indices" );
 892                 }
 893         }
 894
 895         /**
 896          * Adding page_restrictions table, obsoleting page.page_restrictions.
 897          * Migrating old restrictions to new table
 898          * -- Andrew Garrett, January 2007.
 899          */
 900         protected function doRestrictionsUpdate() {
 901                 if ( $this->db->tableExists( 'page_restrictions', __METHOD__ ) ) {
 902                         $this->output( "...page_restrictions table already exists.\n" );
 903
 904                         return;
 905                 }
 906
 907                 $this->applyPatch(
 908                         'patch-page_restrictions.sql',
 909                         false,
 910                         'Creating page_restrictions table (1/2)'
 911                 );
 912                 $this->applyPatch(
 913                         'patch-page_restrictions_sortkey.sql',
 914                         false,
 915                         'Creating page_restrictions table (2/2)'
 916                 );
 917                 $this->output( "done.\n" );
 918
 919                 $this->output( "Migrating old restrictions to new table...\n" );
 920                 $task = $this->maintenance->runChild( 'UpdateRestrictions' );
 921                 $task->execute();
 922         }
 923
 924         protected function doCategorylinksIndicesUpdate() {
 925                 if ( !$this->indexHasField( 'categorylinks', 'cl_sortkey', 'cl_from' ) ) {
 926                         $this->applyPatch( 'patch-categorylinksindex.sql', false, "Updating categorylinks Indices" );
 927                 }
 928         }
 929
 930         protected function doCategoryPopulation() {
 931                 if ( $this->updateRowExists( 'populate category' ) ) {
 932                         $this->output( "...category table already populated.\n" );
 933
 934                         return;
 935                 }
 936
 937                 $this->output(
 938                         "Populating category table, printing progress markers. " .
 939                         "For large databases, you\n" .
 940                         "may want to hit Ctrl-C and do this manually with maintenance/\n" .
 941                         "populateCategory.php.\n"
 942                 );
 943                 $task = $this->maintenance->runChild( 'PopulateCategory' );
 944                 $task->execute();
 945                 $this->output( "Done populating category table.\n" );
 946         }
 947
 948         protected function doPopulateParentId() {
 949                 if ( !$this->updateRowExists( 'populate rev_parent_id' ) ) {
 950                         $this->output(
 951                                 "Populating rev_parent_id fields, printing progress markers. For large\n" .
 952                                 "databases, you may want to hit Ctrl-C and do this manually with\n" .
 953                                 "maintenance/populateParentId.php.\n" );
 954
 955                         $task = $this->maintenance->runChild( 'PopulateParentId' );
 956                         $task->execute();
 957                 }
 958         }
 959
 960         protected function doMaybeProfilingMemoryUpdate() {
 961                 if ( !$this->doTable( 'profiling' ) ) {
 962                         return true;
 963                 }
 964
 965                 if ( !$this->db->tableExists( 'profiling', __METHOD__ ) ) {
 966                         return true;
 967                 } elseif ( $this->db->fieldExists( 'profiling', 'pf_memory', __METHOD__ ) ) {
 968                         $this->output( "...profiling table has pf_memory field.\n" );
 969
 970                         return true;
 971                 }
 972
 973                 return $this->applyPatch(
 974                         'patch-profiling-memory.sql',
 975                         false,
 976                         'Adding pf_memory field to table profiling'
 977                 );
 978         }
 979
 980         protected function doFilearchiveIndicesUpdate() {
 981                 $info = $this->db->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
 982                 if ( !$info ) {
 983                         $this->applyPatch( 'patch-filearchive-user-index.sql', false, "Updating filearchive indices" );
 984                 }
 985
 986                 return true;
 987         }
 988
 989         protected function doNonUniquePlTlIl() {
 990                 $info = $this->db->indexInfo( 'pagelinks', 'pl_namespace' );
 991                 if ( is_array( $info ) && $info[0]->Non_unique ) {
 992                         $this->output( "...pl_namespace, tl_namespace, il_to indices are already non-UNIQUE.\n" );
 993
 994                         return true;
 995                 }
 996                 if ( $this->skipSchema ) {
 997                         $this->output( "...skipping schema change (making pl_namespace, tl_namespace " .
 998                                 "and il_to indices non-UNIQUE).\n" );
 999
1000                         return false;
1001                 }
1002
1003                 return $this->applyPatch(
1004                         'patch-pl-tl-il-nonunique.sql',
1005                         false,
1006                         'Making pl_namespace, tl_namespace and il_to indices non-UNIQUE'
1007                 );
1008         }
1009
1010         protected function doUpdateMimeMinorField() {
1011                 if ( $this->updateRowExists( 'mime_minor_length' ) ) {
1012                         $this->output( "...*_mime_minor fields are already long enough.\n" );
1013
1014                         return;
1015                 }
1016
1017                 $this->applyPatch(
1018                         'patch-mime_minor_length.sql',
1019                         false,
1020                         'Altering all *_mime_minor fields to 100 bytes in size'
1021                 );
1022         }
1023
1024         protected function doClFieldsUpdate() {
1025                 if ( $this->updateRowExists( 'cl_fields_update' ) ) {
1026                         $this->output( "...categorylinks up-to-date.\n" );
1027
1028                         return;
1029                 }
1030
1031                 $this->applyPatch(
1032                         'patch-categorylinks-better-collation2.sql',
1033                         false,
1034                         'Updating categorylinks (again)'
1035                 );
1036         }
1037
1038         protected function doLangLinksLengthUpdate() {
1039                 $langlinks = $this->db->tableName( 'langlinks' );
1040                 $res = $this->db->query( "SHOW COLUMNS FROM $langlinks LIKE 'll_lang'" );
1041                 $row = $this->db->fetchObject( $res );
1042
1043                 if ( $row && $row->Type == "varbinary(10)" ) {
1044                         $this->applyPatch(
1045                                 'patch-langlinks-ll_lang-20.sql',
1046                                 false,
1047                                 'Updating length of ll_lang in langlinks'
1048                         );
1049                 } else {
1050                         $this->output( "...ll_lang is up-to-date.\n" );
1051                 }
1052         }
1053
1054         protected function doUserNewTalkTimestampNotNull() {
1055                 if ( !$this->doTable( 'user_newtalk' ) ) {
1056                         return true;
1057                 }
1058
1059                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_last_timestamp' );
1060                 if ( $info === false ) {
1061                         return;
1062                 }
1063                 if ( $info->isNullable() ) {
1064                         $this->output( "...user_last_timestamp is already nullable.\n" );
1065
1066                         return;
1067                 }
1068
1069                 $this->applyPatch(
1070                         'patch-user-newtalk-timestamp-null.sql',
1071                         false,
1072                         'Making user_last_timestamp nullable'
1073                 );
1074         }
1075
1076         protected function doIwlinksIndexNonUnique() {
1077                 $info = $this->db->indexInfo( 'iwlinks', 'iwl_prefix_title_from' );
1078                 if ( is_array( $info ) && $info[0]->Non_unique ) {
1079                         $this->output( "...iwl_prefix_title_from index is already non-UNIQUE.\n" );
1080
1081                         return true;
1082                 }
1083                 if ( $this->skipSchema ) {
1084                         $this->output( "...skipping schema change (making iwl_prefix_title_from index non-UNIQUE).\n" );
1085
1086                         return false;
1087                 }
1088
1089                 return $this->applyPatch(
1090                         'patch-iwl_prefix_title_from-non-unique.sql',
1091                         false,
1092                         'Making iwl_prefix_title_from index non-UNIQUE'
1093                 );
1094         }
1095
1096         protected function doUserNewTalkUseridUnsigned() {
1097                 if ( !$this->doTable( 'user_newtalk' ) ) {
1098                         return true;
1099                 }
1100
1101                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_id' );
1102                 if ( $info === false ) {
1103                         return true;
1104                 }
1105                 if ( $info->isUnsigned() ) {
1106                         $this->output( "...user_id is already unsigned int.\n" );
1107
1108                         return true;
1109                 }
1110
1111                 return $this->applyPatch(
1112                         'patch-user-newtalk-userid-unsigned.sql',
1113                         false,
1114                         'Making user_id unsigned int'
1115                 );
1116         }
1117
1118         protected function doRevisionPageRevIndexNonUnique() {
1119                 if ( !$this->doTable( 'revision' ) ) {
1120                         return true;
1121                 } elseif ( !$this->db->indexExists( 'revision', 'rev_page_id' ) ) {
1122                         $this->output( "...rev_page_id index not found on revision.\n" );
1123                         return true;
1124                 }
1125
1126                 if ( !$this->db->indexUnique( 'revision', 'rev_page_id' ) ) {
1127                         $this->output( "...rev_page_id index already non-unique.\n" );
1128                         return true;
1129                 }
1130
1131                 return $this->applyPatch(
1132                         'patch-revision-page-rev-index-nonunique.sql',
1133                         false,
1134                         'Making rev_page_id index non-unique'
1135                 );
1136         }
1137
1138         public function getSchemaVars() {
1139                 global $wgDBTableOptions;
1140
1141                 $vars = [];
1142                 $vars['wgDBTableOptions'] = str_replace( 'TYPE', 'ENGINE', $wgDBTableOptions );
1143                 $vars['wgDBTableOptions'] = str_replace(
1144                         'CHARSET=mysql4',
1145                         'CHARSET=binary',
1146                         $vars['wgDBTableOptions']
1147                 );
1148
1149                 return $vars;
1150         }
1151 }