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\MySQLField;
  24 use MediaWiki\MediaWikiServices;
  25
  26 /**
  27  * Mysql update list and mysql-specific update functions.
  28  *
  29  * @ingroup Deployment
  30  * @since 1.17
  31  */
  32 class MysqlUpdater extends DatabaseUpdater {
  33         protected function getCoreUpdateList() {
  34                 return [
  35                         [ 'disableContentHandlerUseDB' ],
  36
  37                         // 1.2
  38                         [ 'addField', 'ipblocks', 'ipb_id', 'patch-ipblocks.sql' ],
  39                         [ 'addField', 'ipblocks', 'ipb_expiry', 'patch-ipb_expiry.sql' ],
  40                         [ 'doInterwikiUpdate' ],
  41                         [ 'doIndexUpdate' ],
  42                         [ 'addField', 'recentchanges', 'rc_type', 'patch-rc_type.sql' ],
  43                         [ 'addIndex', 'recentchanges', 'new_name_timestamp', 'patch-rc-newindex.sql' ],
  44
  45                         // 1.3
  46                         [ 'addField', 'user', 'user_real_name', 'patch-user-realname.sql' ],
  47                         [ 'addTable', 'querycache', 'patch-querycache.sql' ],
  48                         [ 'addTable', 'objectcache', 'patch-objectcache.sql' ],
  49                         [ 'addTable', 'categorylinks', 'patch-categorylinks.sql' ],
  50                         [ 'doOldLinksUpdate' ],
  51                         [ 'doFixAncientImagelinks' ],
  52                         [ 'addField', 'recentchanges', 'rc_ip', 'patch-rc_ip.sql' ],
  53
  54                         // 1.4
  55                         [ 'addIndex', 'image', 'PRIMARY', 'patch-image_name_primary.sql' ],
  56                         [ 'addField', 'recentchanges', 'rc_id', 'patch-rc_id.sql' ],
  57                         [ 'addField', 'recentchanges', 'rc_patrolled', 'patch-rc-patrol.sql' ],
  58                         [ 'addTable', 'logging', 'patch-logging.sql' ],
  59                         [ 'addField', 'user', 'user_token', 'patch-user_token.sql' ],
  60                         [ 'addField', 'watchlist', 'wl_notificationtimestamp', 'patch-email-notification.sql' ],
  61                         [ 'doWatchlistUpdate' ],
  62                         [ 'dropField', 'user', 'user_emailauthenticationtimestamp',
  63                                 'patch-email-authentication.sql' ],
  64
  65                         // 1.5
  66                         [ 'doSchemaRestructuring' ],
  67                         [ 'addField', 'logging', 'log_params', 'patch-log_params.sql' ],
  68                         [ 'checkBin', 'logging', 'log_title', 'patch-logging-title.sql', ],
  69                         [ 'addField', 'archive', 'ar_rev_id', 'patch-archive-rev_id.sql' ],
  70                         [ 'addField', 'page', 'page_len', 'patch-page_len.sql' ],
  71                         [ 'dropField', 'revision', 'inverse_timestamp', 'patch-inverse_timestamp.sql' ],
  72                         [ 'addField', 'revision', 'rev_text_id', 'patch-rev_text_id.sql' ],
  73                         [ 'addField', 'revision', 'rev_deleted', 'patch-rev_deleted.sql' ],
  74                         [ 'addField', 'image', 'img_width', 'patch-img_width.sql' ],
  75                         [ 'addField', 'image', 'img_metadata', 'patch-img_metadata.sql' ],
  76                         [ 'addField', 'user', 'user_email_token', 'patch-user_email_token.sql' ],
  77                         [ 'addField', 'archive', 'ar_text_id', 'patch-archive-text_id.sql' ],
  78                         [ 'doNamespaceSize' ],
  79                         [ 'addField', 'image', 'img_media_type', 'patch-img_media_type.sql' ],
  80                         [ 'doPagelinksUpdate' ],
  81                         [ 'dropField', 'image', 'img_type', 'patch-drop_img_type.sql' ],
  82                         [ 'doUserUniqueUpdate' ],
  83                         [ 'doUserGroupsUpdate' ],
  84                         [ 'addField', 'site_stats', 'ss_total_pages', 'patch-ss_total_articles.sql' ],
  85                         [ 'addTable', 'user_newtalk', 'patch-usernewtalk.sql' ],
  86                         [ 'addTable', 'transcache', 'patch-transcache.sql' ],
  87                         [ 'addField', 'interwiki', 'iw_trans', 'patch-interwiki-trans.sql' ],
  88
  89                         // 1.6
  90                         [ 'doWatchlistNull' ],
  91                         [ 'addIndex', 'logging', 'times', 'patch-logging-times-index.sql' ],
  92                         [ 'addField', 'ipblocks', 'ipb_range_start', 'patch-ipb_range_start.sql' ],
  93                         [ 'doPageRandomUpdate' ],
  94                         [ 'addField', 'user', 'user_registration', 'patch-user_registration.sql' ],
  95                         [ 'doTemplatelinksUpdate' ],
  96                         [ 'addTable', 'externallinks', 'patch-externallinks.sql' ],
  97                         [ 'addTable', 'job', 'patch-job.sql' ],
  98                         [ 'addField', 'site_stats', 'ss_images', 'patch-ss_images.sql' ],
  99                         [ 'addTable', 'langlinks', 'patch-langlinks.sql' ],
 100                         [ 'addTable', 'querycache_info', 'patch-querycacheinfo.sql' ],
 101                         [ 'addTable', 'filearchive', 'patch-filearchive.sql' ],
 102                         [ 'addField', 'ipblocks', 'ipb_anon_only', 'patch-ipb_anon_only.sql' ],
 103                         [ 'addIndex', 'recentchanges', 'rc_ns_usertext', 'patch-recentchanges-utindex.sql' ],
 104                         [ 'addIndex', 'recentchanges', 'rc_user_text', 'patch-rc_user_text-index.sql' ],
 105
 106                         // 1.9
 107                         [ 'addField', 'user', 'user_newpass_time', 'patch-user_newpass_time.sql' ],
 108                         [ 'addTable', 'redirect', 'patch-redirect.sql' ],
 109                         [ 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ],
 110                         [ 'addField', 'ipblocks', 'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ],
 111                         [ 'doBacklinkingIndicesUpdate' ],
 112                         [ 'addField', 'recentchanges', 'rc_old_len', 'patch-rc_len.sql' ],
 113                         [ 'addField', 'user', 'user_editcount', 'patch-user_editcount.sql' ],
 114
 115                         // 1.10
 116                         [ 'doRestrictionsUpdate' ],
 117                         [ 'addField', 'logging', 'log_id', 'patch-log_id.sql' ],
 118                         [ 'addField', 'revision', 'rev_parent_id', 'patch-rev_parent_id.sql' ],
 119                         [ 'addField', 'page_restrictions', 'pr_id', 'patch-page_restrictions_sortkey.sql' ],
 120                         [ 'addField', 'revision', 'rev_len', 'patch-rev_len.sql' ],
 121                         [ 'addField', 'recentchanges', 'rc_deleted', 'patch-rc_deleted.sql' ],
 122                         [ 'addField', 'logging', 'log_deleted', 'patch-log_deleted.sql' ],
 123                         [ 'addField', 'archive', 'ar_deleted', 'patch-ar_deleted.sql' ],
 124                         [ 'addField', 'ipblocks', 'ipb_deleted', 'patch-ipb_deleted.sql' ],
 125                         [ 'addField', 'filearchive', 'fa_deleted', 'patch-fa_deleted.sql' ],
 126                         [ 'addField', 'archive', 'ar_len', 'patch-ar_len.sql' ],
 127
 128                         // 1.11
 129                         [ 'addField', 'ipblocks', 'ipb_block_email', 'patch-ipb_emailban.sql' ],
 130                         [ 'doCategorylinksIndicesUpdate' ],
 131                         [ 'addField', 'oldimage', 'oi_metadata', 'patch-oi_metadata.sql' ],
 132                         [ 'addIndex', 'archive', 'usertext_timestamp', 'patch-archive-user-index.sql' ],
 133                         [ 'addIndex', 'image', 'img_usertext_timestamp', 'patch-image-user-index.sql' ],
 134                         [ 'addIndex', 'oldimage', 'oi_usertext_timestamp', 'patch-oldimage-user-index.sql' ],
 135                         [ 'addField', 'archive', 'ar_page_id', 'patch-archive-page_id.sql' ],
 136                         [ 'addField', 'image', 'img_sha1', 'patch-img_sha1.sql' ],
 137
 138                         // 1.12
 139                         [ 'addTable', 'protected_titles', 'patch-protected_titles.sql' ],
 140
 141                         // 1.13
 142                         [ 'addField', 'ipblocks', 'ipb_by_text', 'patch-ipb_by_text.sql' ],
 143                         [ 'addTable', 'page_props', 'patch-page_props.sql' ],
 144                         [ 'addTable', 'updatelog', 'patch-updatelog.sql' ],
 145                         [ 'addTable', 'category', 'patch-category.sql' ],
 146                         [ 'doCategoryPopulation' ],
 147                         [ 'addField', 'archive', 'ar_parent_id', 'patch-ar_parent_id.sql' ],
 148                         [ 'addField', 'user_newtalk', 'user_last_timestamp', 'patch-user_last_timestamp.sql' ],
 149                         [ 'doPopulateParentId' ],
 150                         [ 'checkBin', 'protected_titles', 'pt_title', 'patch-pt_title-encoding.sql', ],
 151                         [ 'doMaybeProfilingMemoryUpdate' ],
 152                         [ 'doFilearchiveIndicesUpdate' ],
 153
 154                         // 1.14
 155                         [ 'addField', 'site_stats', 'ss_active_users', 'patch-ss_active_users.sql' ],
 156                         [ 'doActiveUsersInit' ],
 157                         [ 'addField', 'ipblocks', 'ipb_allow_usertalk', 'patch-ipb_allow_usertalk.sql' ],
 158
 159                         // 1.15
 160                         [ 'addTable', 'change_tag', 'patch-change_tag.sql' ],
 161                         [ 'addTable', 'tag_summary', 'patch-tag_summary.sql' ],
 162                         [ 'addTable', 'valid_tag', 'patch-valid_tag.sql' ],
 163
 164                         // 1.16
 165                         [ 'addTable', 'user_properties', 'patch-user_properties.sql' ],
 166                         [ 'addTable', 'log_search', 'patch-log_search.sql' ],
 167                         [ 'addField', 'logging', 'log_user_text', 'patch-log_user_text.sql' ],
 168                         # listed separately from the previous update because 1.16 was released without this update
 169                         [ 'doLogUsertextPopulation' ],
 170                         [ 'doLogSearchPopulation' ],
 171                         [ 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ],
 172                         [ 'addIndex', 'change_tag', 'change_tag_rc_tag', 'patch-change_tag-indexes.sql' ],
 173                         [ 'addField', 'redirect', 'rd_interwiki', 'patch-rd_interwiki.sql' ],
 174                         [ 'doUpdateTranscacheField' ],
 175                         [ 'doUpdateMimeMinorField' ],
 176
 177                         // 1.17
 178                         [ 'addTable', 'iwlinks', 'patch-iwlinks.sql' ],
 179                         [ 'addIndex', 'iwlinks', 'iwl_prefix_title_from', 'patch-rename-iwl_prefix.sql' ],
 180                         [ 'addField', 'updatelog', 'ul_value', 'patch-ul_value.sql' ],
 181                         [ 'addField', 'interwiki', 'iw_api', 'patch-iw_api_and_wikiid.sql' ],
 182                         [ 'dropIndex', 'iwlinks', 'iwl_prefix', 'patch-kill-iwl_prefix.sql' ],
 183                         [ 'addField', 'categorylinks', 'cl_collation', 'patch-categorylinks-better-collation.sql' ],
 184                         [ 'doClFieldsUpdate' ],
 185                         [ 'addTable', 'module_deps', 'patch-module_deps.sql' ],
 186                         [ 'dropIndex', 'archive', 'ar_page_revid', 'patch-archive_kill_ar_page_revid.sql' ],
 187                         [ 'addIndex', 'archive', 'ar_revid', 'patch-archive_ar_revid.sql' ],
 188                         [ 'doLangLinksLengthUpdate' ],
 189
 190                         // 1.18
 191                         [ 'doUserNewTalkTimestampNotNull' ],
 192                         [ 'addIndex', 'user', 'user_email', 'patch-user_email_index.sql' ],
 193                         [ 'modifyField', 'user_properties', 'up_property', 'patch-up_property.sql' ],
 194                         [ 'addTable', 'uploadstash', 'patch-uploadstash.sql' ],
 195                         [ 'addTable', 'user_former_groups', 'patch-user_former_groups.sql' ],
 196
 197                         // 1.19
 198                         [ 'addIndex', 'logging', 'type_action', 'patch-logging-type-action-index.sql' ],
 199                         [ 'addField', 'revision', 'rev_sha1', 'patch-rev_sha1.sql' ],
 200                         [ 'doMigrateUserOptions' ],
 201                         [ 'dropField', 'user', 'user_options', 'patch-drop-user_options.sql' ],
 202                         [ 'addField', 'archive', 'ar_sha1', 'patch-ar_sha1.sql' ],
 203                         [ 'addIndex', 'page', 'page_redirect_namespace_len',
 204                                 'patch-page_redirect_namespace_len.sql' ],
 205                         [ 'addField', 'uploadstash', 'us_chunk_inx', 'patch-uploadstash_chunk.sql' ],
 206                         [ 'addfield', 'job', 'job_timestamp', 'patch-jobs-add-timestamp.sql' ],
 207
 208                         // 1.20
 209                         [ 'addIndex', 'revision', 'page_user_timestamp', 'patch-revision-user-page-index.sql' ],
 210                         [ 'addField', 'ipblocks', 'ipb_parent_block_id', 'patch-ipb-parent-block-id.sql' ],
 211                         [ 'addIndex', 'ipblocks', 'ipb_parent_block_id', 'patch-ipb-parent-block-id-index.sql' ],
 212                         [ 'dropField', 'category', 'cat_hidden', 'patch-cat_hidden.sql' ],
 213
 214                         // 1.21
 215                         [ 'addField', 'revision', 'rev_content_format', 'patch-revision-rev_content_format.sql' ],
 216                         [ 'addField', 'revision', 'rev_content_model', 'patch-revision-rev_content_model.sql' ],
 217                         [ 'addField', 'archive', 'ar_content_format', 'patch-archive-ar_content_format.sql' ],
 218                         [ 'addField', 'archive', 'ar_content_model', 'patch-archive-ar_content_model.sql' ],
 219                         [ 'addField', 'page', 'page_content_model', 'patch-page-page_content_model.sql' ],
 220                         [ 'enableContentHandlerUseDB' ],
 221                         [ 'dropField', 'site_stats', 'ss_admins', 'patch-drop-ss_admins.sql' ],
 222                         [ 'dropField', 'recentchanges', 'rc_moved_to_title', 'patch-rc_moved.sql' ],
 223                         [ 'addTable', 'sites', 'patch-sites.sql' ],
 224                         [ 'addField', 'filearchive', 'fa_sha1', 'patch-fa_sha1.sql' ],
 225                         [ 'addField', 'job', 'job_token', 'patch-job_token.sql' ],
 226                         [ 'addField', 'job', 'job_attempts', 'patch-job_attempts.sql' ],
 227                         [ 'doEnableProfiling' ],
 228                         [ 'addField', 'uploadstash', 'us_props', 'patch-uploadstash-us_props.sql' ],
 229                         [ 'modifyField', 'user_groups', 'ug_group', 'patch-ug_group-length-increase-255.sql' ],
 230                         [ 'modifyField', 'user_former_groups', 'ufg_group',
 231                                 'patch-ufg_group-length-increase-255.sql' ],
 232                         [ 'addIndex', 'page_props', 'pp_propname_page',
 233                                 'patch-page_props-propname-page-index.sql' ],
 234                         [ 'addIndex', 'image', 'img_media_mime', 'patch-img_media_mime-index.sql' ],
 235
 236                         // 1.22
 237                         [ 'doIwlinksIndexNonUnique' ],
 238                         [ 'addIndex', 'iwlinks', 'iwl_prefix_from_title',
 239                                 'patch-iwlinks-from-title-index.sql' ],
 240                         [ 'addField', 'archive', 'ar_id', 'patch-archive-ar_id.sql' ],
 241                         [ 'addField', 'externallinks', 'el_id', 'patch-externallinks-el_id.sql' ],
 242
 243                         // 1.23
 244                         [ 'addField', 'recentchanges', 'rc_source', 'patch-rc_source.sql' ],
 245                         [ 'addIndex', 'logging', 'log_user_text_type_time',
 246                                 'patch-logging_user_text_type_time_index.sql' ],
 247                         [ 'addIndex', 'logging', 'log_user_text_time', 'patch-logging_user_text_time_index.sql' ],
 248                         [ 'addField', 'page', 'page_links_updated', 'patch-page_links_updated.sql' ],
 249                         [ 'addField', 'user', 'user_password_expires', 'patch-user_password_expire.sql' ],
 250
 251                         // 1.24
 252                         [ 'addField', 'page_props', 'pp_sortkey', 'patch-pp_sortkey.sql' ],
 253                         [ 'dropField', 'recentchanges', 'rc_cur_time', 'patch-drop-rc_cur_time.sql' ],
 254                         [ 'addIndex', 'watchlist', 'wl_user_notificationtimestamp',
 255                                 'patch-watchlist-user-notificationtimestamp-index.sql' ],
 256                         [ 'addField', 'page', 'page_lang', 'patch-page_lang.sql' ],
 257                         [ 'addField', 'pagelinks', 'pl_from_namespace', 'patch-pl_from_namespace.sql' ],
 258                         [ 'addField', 'templatelinks', 'tl_from_namespace', 'patch-tl_from_namespace.sql' ],
 259                         [ 'addField', 'imagelinks', 'il_from_namespace', 'patch-il_from_namespace.sql' ],
 260                         [ 'modifyField', 'image', 'img_major_mime',
 261                                 'patch-img_major_mime-chemical.sql' ],
 262                         [ 'modifyField', 'oldimage', 'oi_major_mime',
 263                                 'patch-oi_major_mime-chemical.sql' ],
 264                         [ 'modifyField', 'filearchive', 'fa_major_mime',
 265                                 'patch-fa_major_mime-chemical.sql' ],
 266
 267                         // 1.25
 268                         // note this patch covers other _comment and _description fields too
 269                         [ 'doExtendCommentLengths' ],
 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                         [ 'addIndex', 'archive', 'usertext_timestamp', 'patch-rename-ar_usertext_timestamp.sql' ],
 295
 296                         // 1.29
 297                         [ 'addField', 'externallinks', 'el_index_60', 'patch-externallinks-el_index_60.sql' ],
 298                         [ 'dropIndex', 'user_groups', 'ug_user_group', 'patch-user_groups-primary-key.sql' ],
 299                         [ 'addField', 'user_groups', 'ug_expiry', 'patch-user_groups-ug_expiry.sql' ],
 300                         [ 'addIndex', 'image', 'img_user_timestamp', 'patch-image-user-index-2.sql' ],
 301
 302                         // 1.30
 303                         [ 'modifyField', 'image', 'img_media_type', 'patch-add-3d.sql' ],
 304                         [ 'addTable', 'ip_changes', 'patch-ip_changes.sql' ],
 305                         [ 'renameIndex', 'categorylinks', 'cl_from', 'PRIMARY', false,
 306                                 'patch-categorylinks-fix-pk.sql' ],
 307                         [ 'renameIndex', 'templatelinks', 'tl_from', 'PRIMARY', false,
 308                                 'patch-templatelinks-fix-pk.sql' ],
 309                         [ 'renameIndex', 'pagelinks', 'pl_from', 'PRIMARY', false, 'patch-pagelinks-fix-pk.sql' ],
 310                         [ 'renameIndex', 'text', 'old_id', 'PRIMARY', false, 'patch-text-fix-pk.sql' ],
 311                         [ 'renameIndex', 'imagelinks', 'il_from', 'PRIMARY', false, 'patch-imagelinks-fix-pk.sql' ],
 312                         [ 'renameIndex', 'iwlinks', 'iwl_from', 'PRIMARY', false, 'patch-iwlinks-fix-pk.sql' ],
 313                         [ 'renameIndex', 'langlinks', 'll_from', 'PRIMARY', false, 'patch-langlinks-fix-pk.sql' ],
 314                         [ 'renameIndex', 'log_search', 'ls_field_val', 'PRIMARY', false, 'patch-log_search-fix-pk.sql' ],
 315                         [ 'renameIndex', 'module_deps', 'md_module_skin', 'PRIMARY', false,
 316                                 'patch-module_deps-fix-pk.sql' ],
 317                         [ 'renameIndex', 'objectcache', 'keyname', 'PRIMARY', false, 'patch-objectcache-fix-pk.sql' ],
 318                         [ 'renameIndex', 'querycache_info', 'qci_type', 'PRIMARY', false,
 319                                 'patch-querycache_info-fix-pk.sql' ],
 320                         [ 'renameIndex', 'site_stats', 'ss_row_id', 'PRIMARY', false, 'patch-site_stats-fix-pk.sql' ],
 321                         [ 'renameIndex', 'transcache', 'tc_url_idx', 'PRIMARY', false, 'patch-transcache-fix-pk.sql' ],
 322                         [ 'renameIndex', 'user_former_groups', 'ufg_user_group', 'PRIMARY', false,
 323                                 'patch-user_former_groups-fix-pk.sql' ],
 324                         [ 'renameIndex', 'user_properties', 'user_properties_user_property', 'PRIMARY', false,
 325                                 'patch-user_properties-fix-pk.sql' ],
 326                         [ 'addTable', 'comment', 'patch-comment-table.sql' ],
 327                         [ 'migrateComments' ],
 328                         [ 'renameIndex', 'l10n_cache', 'lc_lang_key', 'PRIMARY', false,
 329                                 'patch-l10n_cache-primary-key.sql' ],
 330                         [ 'doUnsignedSyncronisation' ],
 331                 ];
 332         }
 333
 334         /**
 335          * 1.4 betas were missing the 'binary' marker from logging.log_title,
 336          * which causes a collation mismatch error on joins in MySQL 4.1.
 337          *
 338          * @param string $table Table name
 339          * @param string $field Field name to check
 340          * @param string $patchFile Path to the patch to correct the field
 341          * @return bool
 342          */
 343         protected function checkBin( $table, $field, $patchFile ) {
 344                 if ( !$this->doTable( $table ) ) {
 345                         return true;
 346                 }
 347
 348                 /** @var MySQLField $fieldInfo */
 349                 $fieldInfo = $this->db->fieldInfo( $table, $field );
 350                 if ( $fieldInfo->isBinary() ) {
 351                         $this->output( "...$table table has correct $field encoding.\n" );
 352                 } else {
 353                         $this->applyPatch( $patchFile, false, "Fixing $field encoding on $table table" );
 354                 }
 355         }
 356
 357         /**
 358          * Check whether an index contain a field
 359          *
 360          * @param string $table Table name
 361          * @param string $index Index name to check
 362          * @param string $field Field that should be in the index
 363          * @return bool
 364          */
 365         protected function indexHasField( $table, $index, $field ) {
 366                 if ( !$this->doTable( $table ) ) {
 367                         return true;
 368                 }
 369
 370                 $info = $this->db->indexInfo( $table, $index, __METHOD__ );
 371                 if ( $info ) {
 372                         foreach ( $info as $row ) {
 373                                 if ( $row->Column_name == $field ) {
 374                                         $this->output( "...index $index on table $table includes field $field.\n" );
 375
 376                                         return true;
 377                                 }
 378                         }
 379                 }
 380                 $this->output( "...index $index on table $table has no field $field; added.\n" );
 381
 382                 return false;
 383         }
 384
 385         /**
 386          * Check that interwiki table exists; if it doesn't source it
 387          */
 388         protected function doInterwikiUpdate() {
 389                 global $IP;
 390
 391                 if ( !$this->doTable( 'interwiki' ) ) {
 392                         return;
 393                 }
 394
 395                 if ( $this->db->tableExists( "interwiki", __METHOD__ ) ) {
 396                         $this->output( "...already have interwiki table\n" );
 397
 398                         return;
 399                 }
 400
 401                 $this->applyPatch( 'patch-interwiki.sql', false, 'Creating interwiki table' );
 402                 $this->applyPatch(
 403                         "$IP/maintenance/interwiki.sql",
 404                         true,
 405                         'Adding default interwiki definitions'
 406                 );
 407         }
 408
 409         /**
 410          * Check that proper indexes are in place
 411          */
 412         protected function doIndexUpdate() {
 413                 $meta = $this->db->fieldInfo( 'recentchanges', 'rc_timestamp' );
 414                 if ( $meta === false ) {
 415                         throw new MWException( 'Missing rc_timestamp field of recentchanges table. Should not happen.' );
 416                 }
 417                 if ( $meta->isMultipleKey() ) {
 418                         $this->output( "...indexes seem up to 20031107 standards.\n" );
 419
 420                         return;
 421                 }
 422
 423                 $this->applyPatch( 'patch-indexes.sql', true, "Updating indexes to 20031107" );
 424         }
 425
 426         protected function doOldLinksUpdate() {
 427                 $cl = $this->maintenance->runChild( 'ConvertLinks' );
 428                 $cl->execute();
 429         }
 430
 431         protected function doFixAncientImagelinks() {
 432                 $info = $this->db->fieldInfo( 'imagelinks', 'il_from' );
 433                 if ( !$info || $info->type() !== 'string' ) {
 434                         $this->output( "...il_from OK\n" );
 435
 436                         return;
 437                 }
 438
 439                 $applied = $this->applyPatch(
 440                         'patch-fix-il_from.sql',
 441                         false,
 442                         'Fixing ancient broken imagelinks table.'
 443                 );
 444
 445                 if ( $applied ) {
 446                         $this->output( "NOTE: you will have to run maintenance/refreshLinks.php after this." );
 447                 }
 448         }
 449
 450         /**
 451          * Check if we need to add talk page rows to the watchlist
 452          */
 453         function doWatchlistUpdate() {
 454                 $talk = $this->db->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', __METHOD__ );
 455                 $nontalk = $this->db->selectField(
 456                         'watchlist',
 457                         'count(*)',
 458                         'NOT (wl_namespace & 1)',
 459                         __METHOD__
 460                 );
 461                 if ( $talk == $nontalk ) {
 462                         $this->output( "...watchlist talk page rows already present.\n" );
 463
 464                         return;
 465                 }
 466
 467                 $this->output( "Adding missing watchlist talk page rows... " );
 468                 $this->db->insertSelect( 'watchlist', 'watchlist',
 469                         [
 470                                 'wl_user' => 'wl_user',
 471                                 'wl_namespace' => 'wl_namespace | 1',
 472                                 'wl_title' => 'wl_title',
 473                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 474                         ], [ 'NOT (wl_namespace & 1)' ], __METHOD__, 'IGNORE' );
 475                 $this->output( "done.\n" );
 476
 477                 $this->output( "Adding missing watchlist subject page rows... " );
 478                 $this->db->insertSelect( 'watchlist', 'watchlist',
 479                         [
 480                                 'wl_user' => 'wl_user',
 481                                 'wl_namespace' => 'wl_namespace & ~1',
 482                                 'wl_title' => 'wl_title',
 483                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 484                         ], [ 'wl_namespace & 1' ], __METHOD__, 'IGNORE' );
 485                 $this->output( "done.\n" );
 486         }
 487
 488         function doSchemaRestructuring() {
 489                 if ( $this->db->tableExists( 'page', __METHOD__ ) ) {
 490                         $this->output( "...page table already exists.\n" );
 491
 492                         return;
 493                 }
 494
 495                 $this->output( "...converting from cur/old to page/revision/text DB structure.\n" );
 496                 $this->output( wfTimestamp( TS_DB ) );
 497                 $this->output( "......checking for duplicate entries.\n" );
 498
 499                 list( $cur, $old, $page, $revision, $text ) = $this->db->tableNamesN(
 500                         'cur',
 501                         'old',
 502                         'page',
 503                         'revision',
 504                         'text'
 505                 );
 506
 507                 $rows = $this->db->query( "
 508                         SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 509                         FROM $cur
 510                         GROUP BY cur_title, cur_namespace
 511                         HAVING c>1",
 512                         __METHOD__
 513                 );
 514
 515                 if ( $rows->numRows() > 0 ) {
 516                         $this->output( wfTimestamp( TS_DB ) );
 517                         $this->output( "......<b>Found duplicate entries</b>\n" );
 518                         $this->output( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 519                         $duplicate = [];
 520                         foreach ( $rows as $row ) {
 521                                 if ( !isset( $duplicate[$row->cur_namespace] ) ) {
 522                                         $duplicate[$row->cur_namespace] = [];
 523                                 }
 524
 525                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 526                                 $this->output( sprintf(
 527                                         "      %-60s %3s %5s\n",
 528                                         $row->cur_title, $row->cur_namespace,
 529                                         $row->c
 530                                 ) );
 531                         }
 532                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 533                         $firstCond = true;
 534                         foreach ( $duplicate as $ns => $titles ) {
 535                                 if ( $firstCond ) {
 536                                         $firstCond = false;
 537                                 } else {
 538                                         $sql .= ' OR ';
 539                                 }
 540                                 $sql .= "( cur_namespace = {$ns} AND cur_title in (";
 541                                 $first = true;
 542                                 foreach ( $titles as $t ) {
 543                                         if ( $first ) {
 544                                                 $sql .= $this->db->addQuotes( $t );
 545                                                 $first = false;
 546                                         } else {
 547                                                 $sql .= ', ' . $this->db->addQuotes( $t );
 548                                         }
 549                                 }
 550                                 $sql .= ") ) \n";
 551                         }
 552                         # By sorting descending, the most recent entry will be the first in the list.
 553                         # All following entries will be deleted by the next while-loop.
 554                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 555
 556                         $rows = $this->db->query( $sql, __METHOD__ );
 557
 558                         $prev_title = $prev_namespace = false;
 559                         $deleteId = [];
 560
 561                         foreach ( $rows as $row ) {
 562                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 563                                         $deleteId[] = $row->cur_id;
 564                                 }
 565                                 $prev_title = $row->cur_title;
 566                                 $prev_namespace = $row->cur_namespace;
 567                         }
 568                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . implode( ',', $deleteId ) . ')';
 569                         $this->db->query( $sql, __METHOD__ );
 570                         $this->output( wfTimestamp( TS_DB ) );
 571                         $this->output( "......<b>Deleted</b> " . $this->db->affectedRows() . " records.\n" );
 572                 }
 573
 574                 $this->output( wfTimestamp( TS_DB ) );
 575                 $this->output( "......Creating tables.\n" );
 576                 $this->db->query( "CREATE TABLE $page (
 577                         page_id int(8) unsigned NOT NULL auto_increment,
 578                         page_namespace int NOT NULL,
 579                         page_title varchar(255) binary NOT NULL,
 580                         page_restrictions tinyblob NOT NULL,
 581                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 582                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 583                         page_random real unsigned NOT NULL,
 584                         page_touched char(14) binary NOT NULL default '',
 585                         page_latest int(8) unsigned NOT NULL,
 586                         page_len int(8) unsigned NOT NULL,
 587
 588                         PRIMARY KEY page_id (page_id),
 589                         UNIQUE INDEX name_title (page_namespace,page_title),
 590                         INDEX (page_random),
 591                         INDEX (page_len)
 592                         ) ENGINE=InnoDB", __METHOD__ );
 593                 $this->db->query( "CREATE TABLE $revision (
 594                         rev_id int(8) unsigned NOT NULL auto_increment,
 595                         rev_page int(8) unsigned NOT NULL,
 596                         rev_comment tinyblob NOT NULL,
 597                         rev_user int(5) unsigned NOT NULL default '0',
 598                         rev_user_text varchar(255) binary NOT NULL default '',
 599                         rev_timestamp char(14) binary NOT NULL default '',
 600                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 601                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 602                         rev_len int(8) unsigned,
 603                         rev_parent_id int(8) unsigned default NULL,
 604                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 605                         UNIQUE INDEX rev_id (rev_id),
 606                         INDEX rev_timestamp (rev_timestamp),
 607                         INDEX page_timestamp (rev_page,rev_timestamp),
 608                         INDEX user_timestamp (rev_user,rev_timestamp),
 609                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 610                         ) ENGINE=InnoDB", __METHOD__ );
 611
 612                 $this->output( wfTimestamp( TS_DB ) );
 613                 $this->output( "......Locking tables.\n" );
 614                 $this->db->query(
 615                         "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE",
 616                         __METHOD__
 617                 );
 618
 619                 $maxold = intval( $this->db->selectField( 'old', 'max(old_id)', '', __METHOD__ ) );
 620                 $this->output( wfTimestamp( TS_DB ) );
 621                 $this->output( "......maxold is {$maxold}\n" );
 622
 623                 $this->output( wfTimestamp( TS_DB ) );
 624                 global $wgLegacySchemaConversion;
 625                 if ( $wgLegacySchemaConversion ) {
 626                         // Create HistoryBlobCurStub entries.
 627                         // Text will be pulled from the leftover 'cur' table at runtime.
 628                         $this->output( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 629                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 630                         $cur_flags = "'object'";
 631                 } else {
 632                         // Copy all cur text in immediately: this may take longer but avoids
 633                         // having to keep an extra table around.
 634                         $this->output( "......Moving text from cur.\n" );
 635                         $cur_text = 'cur_text';
 636                         $cur_flags = "''";
 637                 }
 638                 $this->db->query(
 639                         "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user,
 640                                 old_user_text, old_timestamp, old_minor_edit, old_flags)
 641                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text,
 642                                 cur_timestamp, cur_minor_edit, $cur_flags
 643                         FROM $cur",
 644                         __METHOD__
 645                 );
 646
 647                 $this->output( wfTimestamp( TS_DB ) );
 648                 $this->output( "......Setting up revision table.\n" );
 649                 $this->db->query(
 650                         "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user,
 651                                 rev_user_text, rev_timestamp, rev_minor_edit)
 652                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 653                                 old_timestamp, old_minor_edit
 654                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title",
 655                         __METHOD__
 656                 );
 657
 658                 $this->output( wfTimestamp( TS_DB ) );
 659                 $this->output( "......Setting up page table.\n" );
 660                 $this->db->query(
 661                         "INSERT INTO $page (page_id, page_namespace, page_title,
 662                                 page_restrictions, page_is_redirect, page_is_new, page_random,
 663                                 page_touched, page_latest, page_len)
 664                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions,
 665                                 cur_is_redirect, cur_is_new, cur_random, cur_touched, rev_id, LENGTH(cur_text)
 666                         FROM $cur,$revision
 667                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}",
 668                         __METHOD__
 669                 );
 670
 671                 $this->output( wfTimestamp( TS_DB ) );
 672                 $this->output( "......Unlocking tables.\n" );
 673                 $this->db->query( "UNLOCK TABLES", __METHOD__ );
 674
 675                 $this->output( wfTimestamp( TS_DB ) );
 676                 $this->output( "......Renaming old.\n" );
 677                 $this->db->query( "ALTER TABLE $old RENAME TO $text", __METHOD__ );
 678
 679                 $this->output( wfTimestamp( TS_DB ) );
 680                 $this->output( "...done.\n" );
 681         }
 682
 683         protected function doNamespaceSize() {
 684                 $tables = [
 685                         'page' => 'page',
 686                         'archive' => 'ar',
 687                         'recentchanges' => 'rc',
 688                         'watchlist' => 'wl',
 689                         'querycache' => 'qc',
 690                         'logging' => 'log',
 691                 ];
 692                 foreach ( $tables as $table => $prefix ) {
 693                         $field = $prefix . '_namespace';
 694
 695                         $tablename = $this->db->tableName( $table );
 696                         $result = $this->db->query( "SHOW COLUMNS FROM $tablename LIKE '$field'", __METHOD__ );
 697                         $info = $this->db->fetchObject( $result );
 698
 699                         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 700                                 $this->output( "...$field is already a full int ($info->Type).\n" );
 701                         } else {
 702                                 $this->output( "Promoting $field from $info->Type to int... " );
 703                                 $this->db->query( "ALTER TABLE $tablename MODIFY $field int NOT NULL", __METHOD__ );
 704                                 $this->output( "done.\n" );
 705                         }
 706                 }
 707         }
 708
 709         protected function doPagelinksUpdate() {
 710                 if ( $this->db->tableExists( 'pagelinks', __METHOD__ ) ) {
 711                         $this->output( "...already have pagelinks table.\n" );
 712
 713                         return;
 714                 }
 715
 716                 $this->applyPatch(
 717                         'patch-pagelinks.sql',
 718                         false,
 719                         'Converting links and brokenlinks tables to pagelinks'
 720                 );
 721
 722                 global $wgContLang;
 723                 foreach ( $wgContLang->getNamespaces() as $ns => $name ) {
 724                         if ( $ns == 0 ) {
 725                                 continue;
 726                         }
 727
 728                         $this->output( "Cleaning up broken links for namespace $ns... " );
 729                         $this->db->update( 'pagelinks',
 730                                 [
 731                                         'pl_namespace' => $ns,
 732                                         "pl_title = TRIM(LEADING {$this->db->addQuotes( "$name:" )} FROM pl_title)",
 733                                 ],
 734                                 [
 735                                         'pl_namespace' => 0,
 736                                         'pl_title' . $this->db->buildLike( "$name:", $this->db->anyString() ),
 737                                 ],
 738                                 __METHOD__
 739                         );
 740                         $this->output( "done.\n" );
 741                 }
 742         }
 743
 744         protected function doUserUniqueUpdate() {
 745                 if ( !$this->doTable( 'user' ) ) {
 746                         return true;
 747                 }
 748
 749                 $duper = new UserDupes( $this->db, [ $this, 'output' ] );
 750                 if ( $duper->hasUniqueIndex() ) {
 751                         $this->output( "...already have unique user_name index.\n" );
 752
 753                         return;
 754                 }
 755
 756                 if ( !$duper->clearDupes() ) {
 757                         $this->output( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 758                 }
 759                 $this->applyPatch( 'patch-user_nameindex.sql', false, "Adding unique index on user_name" );
 760         }
 761
 762         protected function doUserGroupsUpdate() {
 763                 if ( !$this->doTable( 'user_groups' ) ) {
 764                         return true;
 765                 }
 766
 767                 if ( $this->db->tableExists( 'user_groups', __METHOD__ ) ) {
 768                         $info = $this->db->fieldInfo( 'user_groups', 'ug_group' );
 769                         if ( $info->type() == 'int' ) {
 770                                 $oldug = $this->db->tableName( 'user_groups' );
 771                                 $newug = $this->db->tableName( 'user_groups_bogus' );
 772                                 $this->output( "user_groups table exists but is in bogus intermediate " .
 773                                         "format. Renaming to $newug... " );
 774                                 $this->db->query( "ALTER TABLE $oldug RENAME TO $newug", __METHOD__ );
 775                                 $this->output( "done.\n" );
 776
 777                                 $this->applyPatch( 'patch-user_groups.sql', false, "Re-adding fresh user_groups table" );
 778
 779                                 $this->output( "***\n" );
 780                                 $this->output( "*** WARNING: You will need to manually fix up user " .
 781                                         "permissions in the user_groups\n" );
 782                                 $this->output( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 783                                 $this->output( "***\n" );
 784                         } else {
 785                                 $this->output( "...user_groups table exists and is in current format.\n" );
 786                         }
 787
 788                         return;
 789                 }
 790
 791                 $this->applyPatch( 'patch-user_groups.sql', false, "Adding user_groups table" );
 792
 793                 if ( !$this->db->tableExists( 'user_rights', __METHOD__ ) ) {
 794                         if ( $this->db->fieldExists( 'user', 'user_rights', __METHOD__ ) ) {
 795                                 $this->applyPatch(
 796                                         'patch-user_rights.sql',
 797                                         false,
 798                                         'Upgrading from a 1.3 or older database? Breaking out user_rights for conversion'
 799                                 );
 800                         } else {
 801                                 $this->output( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 802                                 $this->output( "*** You may need to manually configure some sysops by manipulating\n" );
 803                                 $this->output( "*** the user_groups table.\n" );
 804
 805                                 return;
 806                         }
 807                 }
 808
 809                 $this->output( "Converting user_rights table to user_groups... " );
 810                 $result = $this->db->select( 'user_rights',
 811                         [ 'ur_user', 'ur_rights' ],
 812                         [ "ur_rights != ''" ],
 813                         __METHOD__ );
 814
 815                 foreach ( $result as $row ) {
 816                         $groups = array_unique(
 817                                 array_map( 'trim',
 818                                         explode( ',', $row->ur_rights ) ) );
 819
 820                         foreach ( $groups as $group ) {
 821                                 $this->db->insert( 'user_groups',
 822                                         [
 823                                                 'ug_user' => $row->ur_user,
 824                                                 'ug_group' => $group ],
 825                                         __METHOD__ );
 826                         }
 827                 }
 828                 $this->output( "done.\n" );
 829         }
 830
 831         /**
 832          * Make sure wl_notificationtimestamp can be NULL,
 833          * and update old broken items.
 834          */
 835         protected function doWatchlistNull() {
 836                 $info = $this->db->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 837                 if ( !$info ) {
 838                         return;
 839                 }
 840                 if ( $info->isNullable() ) {
 841                         $this->output( "...wl_notificationtimestamp is already nullable.\n" );
 842
 843                         return;
 844                 }
 845
 846                 $this->applyPatch(
 847                         'patch-watchlist-null.sql',
 848                         false,
 849                         'Making wl_notificationtimestamp nullable'
 850                 );
 851         }
 852
 853         /**
 854          * Set page_random field to a random value where it is equals to 0.
 855          *
 856          * @see T5946
 857          */
 858         protected function doPageRandomUpdate() {
 859                 $page = $this->db->tableName( 'page' );
 860                 $this->db->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", __METHOD__ );
 861                 $rows = $this->db->affectedRows();
 862
 863                 if ( $rows ) {
 864                         $this->output( "Set page_random to a random value on $rows rows where it was set to 0\n" );
 865                 } else {
 866                         $this->output( "...no page_random rows needed to be set\n" );
 867                 }
 868         }
 869
 870         protected function doTemplatelinksUpdate() {
 871                 if ( $this->db->tableExists( 'templatelinks', __METHOD__ ) ) {
 872                         $this->output( "...templatelinks table already exists\n" );
 873
 874                         return;
 875                 }
 876
 877                 $this->applyPatch( 'patch-templatelinks.sql', false, "Creating templatelinks table" );
 878
 879                 $this->output( "Populating...\n" );
 880                 if ( wfGetLB()->getServerCount() > 1 ) {
 881                         // Slow, replication-friendly update
 882                         $res = $this->db->select( 'pagelinks', [ 'pl_from', 'pl_namespace', 'pl_title' ],
 883                                 [ 'pl_namespace' => NS_TEMPLATE ], __METHOD__ );
 884                         $count = 0;
 885                         foreach ( $res as $row ) {
 886                                 $count = ( $count + 1 ) % 100;
 887                                 if ( $count == 0 ) {
 888                                         $lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
 889                                         $lbFactory->waitForReplication( [ 'wiki' => wfWikiID() ] );
 890                                 }
 891                                 $this->db->insert( 'templatelinks',
 892                                         [
 893                                                 'tl_from' => $row->pl_from,
 894                                                 'tl_namespace' => $row->pl_namespace,
 895                                                 'tl_title' => $row->pl_title,
 896                                         ], __METHOD__
 897                                 );
 898                         }
 899                 } else {
 900                         // Fast update
 901                         $this->db->insertSelect( 'templatelinks', 'pagelinks',
 902                                 [
 903                                         'tl_from' => 'pl_from',
 904                                         'tl_namespace' => 'pl_namespace',
 905                                         'tl_title' => 'pl_title'
 906                                 ], [
 907                                         'pl_namespace' => 10
 908                                 ], __METHOD__
 909                         );
 910                 }
 911                 $this->output( "Done. Please run maintenance/refreshLinks.php for a more " .
 912                         "thorough templatelinks update.\n" );
 913         }
 914
 915         protected function doBacklinkingIndicesUpdate() {
 916                 if ( !$this->indexHasField( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 917                         !$this->indexHasField( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 918                         !$this->indexHasField( 'imagelinks', 'il_to', 'il_from' )
 919                 ) {
 920                         $this->applyPatch( 'patch-backlinkindexes.sql', false, "Updating backlinking indices" );
 921                 }
 922         }
 923
 924         /**
 925          * Adding page_restrictions table, obsoleting page.page_restrictions.
 926          * Migrating old restrictions to new table
 927          * -- Andrew Garrett, January 2007.
 928          */
 929         protected function doRestrictionsUpdate() {
 930                 if ( $this->db->tableExists( 'page_restrictions', __METHOD__ ) ) {
 931                         $this->output( "...page_restrictions table already exists.\n" );
 932
 933                         return;
 934                 }
 935
 936                 $this->applyPatch(
 937                         'patch-page_restrictions.sql',
 938                         false,
 939                         'Creating page_restrictions table (1/2)'
 940                 );
 941                 $this->applyPatch(
 942                         'patch-page_restrictions_sortkey.sql',
 943                         false,
 944                         'Creating page_restrictions table (2/2)'
 945                 );
 946                 $this->output( "done.\n" );
 947
 948                 $this->output( "Migrating old restrictions to new table...\n" );
 949                 $task = $this->maintenance->runChild( 'UpdateRestrictions' );
 950                 $task->execute();
 951         }
 952
 953         protected function doCategorylinksIndicesUpdate() {
 954                 if ( !$this->indexHasField( 'categorylinks', 'cl_sortkey', 'cl_from' ) ) {
 955                         $this->applyPatch( 'patch-categorylinksindex.sql', false, "Updating categorylinks Indices" );
 956                 }
 957         }
 958
 959         protected function doCategoryPopulation() {
 960                 if ( $this->updateRowExists( 'populate category' ) ) {
 961                         $this->output( "...category table already populated.\n" );
 962
 963                         return;
 964                 }
 965
 966                 $this->output(
 967                         "Populating category table, printing progress markers. " .
 968                         "For large databases, you\n" .
 969                         "may want to hit Ctrl-C and do this manually with maintenance/\n" .
 970                         "populateCategory.php.\n"
 971                 );
 972                 $task = $this->maintenance->runChild( 'PopulateCategory' );
 973                 $task->execute();
 974                 $this->output( "Done populating category table.\n" );
 975         }
 976
 977         protected function doPopulateParentId() {
 978                 if ( !$this->updateRowExists( 'populate rev_parent_id' ) ) {
 979                         $this->output(
 980                                 "Populating rev_parent_id fields, printing progress markers. For large\n" .
 981                                 "databases, you may want to hit Ctrl-C and do this manually with\n" .
 982                                 "maintenance/populateParentId.php.\n" );
 983
 984                         $task = $this->maintenance->runChild( 'PopulateParentId' );
 985                         $task->execute();
 986                 }
 987         }
 988
 989         protected function doMaybeProfilingMemoryUpdate() {
 990                 if ( !$this->doTable( 'profiling' ) ) {
 991                         return true;
 992                 }
 993
 994                 if ( !$this->db->tableExists( 'profiling', __METHOD__ ) ) {
 995                         return true;
 996                 } elseif ( $this->db->fieldExists( 'profiling', 'pf_memory', __METHOD__ ) ) {
 997                         $this->output( "...profiling table has pf_memory field.\n" );
 998
 999                         return true;
1000                 }
1001
1002                 return $this->applyPatch(
1003                         'patch-profiling-memory.sql',
1004                         false,
1005                         'Adding pf_memory field to table profiling'
1006                 );
1007         }
1008
1009         protected function doFilearchiveIndicesUpdate() {
1010                 $info = $this->db->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
1011                 if ( !$info ) {
1012                         $this->applyPatch( 'patch-filearchive-user-index.sql', false, "Updating filearchive indices" );
1013                 }
1014
1015                 return true;
1016         }
1017
1018         protected function doNonUniquePlTlIl() {
1019                 $info = $this->db->indexInfo( 'pagelinks', 'pl_namespace' );
1020                 if ( is_array( $info ) && $info[0]->Non_unique ) {
1021                         $this->output( "...pl_namespace, tl_namespace, il_to indices are already non-UNIQUE.\n" );
1022
1023                         return true;
1024                 }
1025                 if ( $this->skipSchema ) {
1026                         $this->output( "...skipping schema change (making pl_namespace, tl_namespace " .
1027                                 "and il_to indices non-UNIQUE).\n" );
1028
1029                         return false;
1030                 }
1031
1032                 return $this->applyPatch(
1033                         'patch-pl-tl-il-nonunique.sql',
1034                         false,
1035                         'Making pl_namespace, tl_namespace and il_to indices non-UNIQUE'
1036                 );
1037         }
1038
1039         protected function doUpdateMimeMinorField() {
1040                 if ( $this->updateRowExists( 'mime_minor_length' ) ) {
1041                         $this->output( "...*_mime_minor fields are already long enough.\n" );
1042
1043                         return;
1044                 }
1045
1046                 $this->applyPatch(
1047                         'patch-mime_minor_length.sql',
1048                         false,
1049                         'Altering all *_mime_minor fields to 100 bytes in size'
1050                 );
1051         }
1052
1053         protected function doClFieldsUpdate() {
1054                 if ( $this->updateRowExists( 'cl_fields_update' ) ) {
1055                         $this->output( "...categorylinks up-to-date.\n" );
1056
1057                         return;
1058                 }
1059
1060                 $this->applyPatch(
1061                         'patch-categorylinks-better-collation2.sql',
1062                         false,
1063                         'Updating categorylinks (again)'
1064                 );
1065         }
1066
1067         protected function doLangLinksLengthUpdate() {
1068                 $langlinks = $this->db->tableName( 'langlinks' );
1069                 $res = $this->db->query( "SHOW COLUMNS FROM $langlinks LIKE 'll_lang'" );
1070                 $row = $this->db->fetchObject( $res );
1071
1072                 if ( $row && $row->Type == "varbinary(10)" ) {
1073                         $this->applyPatch(
1074                                 'patch-langlinks-ll_lang-20.sql',
1075                                 false,
1076                                 'Updating length of ll_lang in langlinks'
1077                         );
1078                 } else {
1079                         $this->output( "...ll_lang is up-to-date.\n" );
1080                 }
1081         }
1082
1083         protected function doUserNewTalkTimestampNotNull() {
1084                 if ( !$this->doTable( 'user_newtalk' ) ) {
1085                         return true;
1086                 }
1087
1088                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_last_timestamp' );
1089                 if ( $info === false ) {
1090                         return;
1091                 }
1092                 if ( $info->isNullable() ) {
1093                         $this->output( "...user_last_timestamp is already nullable.\n" );
1094
1095                         return;
1096                 }
1097
1098                 $this->applyPatch(
1099                         'patch-user-newtalk-timestamp-null.sql',
1100                         false,
1101                         'Making user_last_timestamp nullable'
1102                 );
1103         }
1104
1105         protected function doIwlinksIndexNonUnique() {
1106                 $info = $this->db->indexInfo( 'iwlinks', 'iwl_prefix_title_from' );
1107                 if ( is_array( $info ) && $info[0]->Non_unique ) {
1108                         $this->output( "...iwl_prefix_title_from index is already non-UNIQUE.\n" );
1109
1110                         return true;
1111                 }
1112                 if ( $this->skipSchema ) {
1113                         $this->output( "...skipping schema change (making iwl_prefix_title_from index non-UNIQUE).\n" );
1114
1115                         return false;
1116                 }
1117
1118                 return $this->applyPatch(
1119                         'patch-iwl_prefix_title_from-non-unique.sql',
1120                         false,
1121                         'Making iwl_prefix_title_from index non-UNIQUE'
1122                 );
1123         }
1124
1125         protected function doUnsignedSyncronisation() {
1126                 $sync = [
1127                         [ 'table' => 'bot_passwords', 'field' => 'bp_user' ],
1128                         [ 'table' => 'change_tag', 'field' => 'ct_log_id' ],
1129                         [ 'table' => 'change_tag', 'field' => 'ct_rev_id' ],
1130                         [ 'table' => 'page_restrictions', 'field' => 'pr_user' ],
1131                         [ 'table' => 'tag_summary', 'field' => 'ts_log_id' ],
1132                         [ 'table' => 'tag_summary', 'field' => 'ts_rev_id' ],
1133                         [ 'table' => 'user_newtalk', 'field' => 'user_id' ],
1134                         [ 'table' => 'user_properties', 'field' => 'up_user' ],
1135                 ];
1136
1137                 foreach ( $sync as $s ) {
1138                         if ( !$this->doTable( $s['table'] ) ) {
1139                                 continue;
1140                         }
1141
1142                         $info = $this->db->fieldInfo( $s['table'], $s['field'] );
1143                         if ( $info === false ) {
1144                                 continue;
1145                         }
1146                         $fullName = "{$s['table']}.{$s['field']}";
1147                         if ( $info->isUnsigned() ) {
1148                                 $this->output( "...$fullName is already unsigned int.\n" );
1149
1150                                 continue;
1151                         }
1152
1153                         $this->applyPatch(
1154                                 "patch-{$s['table']}-{$s['field']}-unsigned.sql",
1155                                 false,
1156                                 "Making $fullName into an unsigned int"
1157                         );
1158                 }
1159
1160                 return true;
1161         }
1162
1163         protected function doRevisionPageRevIndexNonUnique() {
1164                 if ( !$this->doTable( 'revision' ) ) {
1165                         return true;
1166                 } elseif ( !$this->db->indexExists( 'revision', 'rev_page_id' ) ) {
1167                         $this->output( "...rev_page_id index not found on revision.\n" );
1168                         return true;
1169                 }
1170
1171                 if ( !$this->db->indexUnique( 'revision', 'rev_page_id' ) ) {
1172                         $this->output( "...rev_page_id index already non-unique.\n" );
1173                         return true;
1174                 }
1175
1176                 return $this->applyPatch(
1177                         'patch-revision-page-rev-index-nonunique.sql',
1178                         false,
1179                         'Making rev_page_id index non-unique'
1180                 );
1181         }
1182
1183         protected function doExtendCommentLengths() {
1184                 $table = $this->db->tableName( 'revision' );
1185                 $res = $this->db->query( "SHOW COLUMNS FROM $table LIKE 'rev_comment'" );
1186                 $row = $this->db->fetchObject( $res );
1187
1188                 if ( $row && ( $row->Type !== "varbinary(767)" || $row->Default !== "" ) ) {
1189                         $this->applyPatch(
1190                                 'patch-editsummary-length.sql',
1191                                 false,
1192                                 'Extending edit summary lengths (and setting defaults)'
1193                         );
1194                 } else {
1195                         $this->output( '...comment fields are up to date' );
1196                 }
1197         }
1198
1199         public function getSchemaVars() {
1200                 global $wgDBTableOptions;
1201
1202                 $vars = [];
1203                 $vars['wgDBTableOptions'] = str_replace( 'TYPE', 'ENGINE', $wgDBTableOptions );
1204                 $vars['wgDBTableOptions'] = str_replace(
1205                         'CHARSET=mysql4',
1206                         'CHARSET=binary',
1207                         $vars['wgDBTableOptions']
1208                 );
1209
1210                 return $vars;
1211         }
1212 }