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 Wikimedia\Rdbms\IDatabase;
  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-usernewtalk.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
 162                         // 1.16
 163                         [ 'addTable', 'user_properties', 'patch-user_properties.sql' ],
 164                         [ 'addTable', 'log_search', 'patch-log_search.sql' ],
 165                         [ 'addField', 'logging', 'log_user_text', 'patch-log_user_text.sql' ],
 166                         # listed separately from the previous update because 1.16 was released without this update
 167                         [ 'doLogUsertextPopulation' ],
 168                         [ 'doLogSearchPopulation' ],
 169                         [ 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ],
 170                         [ 'dropIndex', 'change_tag', 'ct_rc_id', 'patch-change_tag-indexes.sql' ],
 171                         [ 'addField', 'redirect', 'rd_interwiki', 'patch-rd_interwiki.sql' ],
 172                         [ 'doUpdateMimeMinorField' ],
 173
 174                         // 1.17
 175                         [ 'addTable', 'iwlinks', 'patch-iwlinks.sql' ],
 176                         [ 'addIndex', 'iwlinks', 'iwl_prefix_title_from', 'patch-rename-iwl_prefix.sql' ],
 177                         [ 'addField', 'updatelog', 'ul_value', 'patch-ul_value.sql' ],
 178                         [ 'addField', 'interwiki', 'iw_api', 'patch-iw_api_and_wikiid.sql' ],
 179                         [ 'dropIndex', 'iwlinks', 'iwl_prefix', 'patch-kill-iwl_prefix.sql' ],
 180                         [ 'addField', 'categorylinks', 'cl_collation', 'patch-categorylinks-better-collation.sql' ],
 181                         [ 'doClFieldsUpdate' ],
 182                         [ 'addTable', 'module_deps', 'patch-module_deps.sql' ],
 183                         [ 'dropIndex', 'archive', 'ar_page_revid', 'patch-archive_kill_ar_page_revid.sql' ],
 184                         [ 'addIndexIfNoneExist',
 185                                 'archive', [ 'ar_revid', 'ar_revid_uniq' ], 'patch-archive_ar_revid.sql' ],
 186                         [ 'doLangLinksLengthUpdate' ],
 187
 188                         // 1.18
 189                         [ 'doUserNewTalkTimestampNotNull' ],
 190                         [ 'addIndex', 'user', 'user_email', 'patch-user_email_index.sql' ],
 191                         [ 'modifyField', 'user_properties', 'up_property', 'patch-up_property.sql' ],
 192                         [ 'addTable', 'uploadstash', 'patch-uploadstash.sql' ],
 193                         [ 'addTable', 'user_former_groups', 'patch-user_former_groups.sql' ],
 194
 195                         // 1.19
 196                         [ 'addField', 'revision', 'rev_sha1', 'patch-rev_sha1.sql' ],
 197                         [ 'doMigrateUserOptions' ],
 198                         [ 'dropField', 'user', 'user_options', 'patch-drop-user_options.sql' ],
 199                         [ 'addField', 'archive', 'ar_sha1', 'patch-ar_sha1.sql' ],
 200                         [ 'addIndex', 'page', 'page_redirect_namespace_len',
 201                                 'patch-page_redirect_namespace_len.sql' ],
 202                         [ 'addField', 'uploadstash', 'us_chunk_inx', 'patch-uploadstash_chunk.sql' ],
 203                         [ 'addfield', 'job', 'job_timestamp', 'patch-jobs-add-timestamp.sql' ],
 204
 205                         // 1.20
 206                         [ 'addIndex', 'revision', 'page_user_timestamp', 'patch-revision-user-page-index.sql' ],
 207                         [ 'addField', 'ipblocks', 'ipb_parent_block_id', 'patch-ipb-parent-block-id.sql' ],
 208                         [ 'addIndex', 'ipblocks', 'ipb_parent_block_id', 'patch-ipb-parent-block-id-index.sql' ],
 209                         [ 'dropField', 'category', 'cat_hidden', 'patch-cat_hidden.sql' ],
 210
 211                         // 1.21
 212                         [ 'addField', 'revision', 'rev_content_format', 'patch-revision-rev_content_format.sql' ],
 213                         [ 'addField', 'revision', 'rev_content_model', 'patch-revision-rev_content_model.sql' ],
 214                         [ 'addField', 'archive', 'ar_content_format', 'patch-archive-ar_content_format.sql' ],
 215                         [ 'addField', 'archive', 'ar_content_model', 'patch-archive-ar_content_model.sql' ],
 216                         [ 'addField', 'page', 'page_content_model', 'patch-page-page_content_model.sql' ],
 217                         [ 'enableContentHandlerUseDB' ],
 218                         [ 'dropField', 'site_stats', 'ss_admins', 'patch-drop-ss_admins.sql' ],
 219                         [ 'dropField', 'recentchanges', 'rc_moved_to_title', 'patch-rc_moved.sql' ],
 220                         [ 'addTable', 'sites', 'patch-sites.sql' ],
 221                         [ 'addField', 'filearchive', 'fa_sha1', 'patch-fa_sha1.sql' ],
 222                         [ 'addField', 'job', 'job_token', 'patch-job_token.sql' ],
 223                         [ 'addField', 'job', 'job_attempts', 'patch-job_attempts.sql' ],
 224                         [ 'doEnableProfiling' ],
 225                         [ 'addField', 'uploadstash', 'us_props', 'patch-uploadstash-us_props.sql' ],
 226                         [ 'modifyField', 'user_groups', 'ug_group', 'patch-ug_group-length-increase-255.sql' ],
 227                         [ 'modifyField', 'user_former_groups', 'ufg_group',
 228                                 'patch-ufg_group-length-increase-255.sql' ],
 229                         [ 'addIndex', 'page_props', 'pp_propname_page',
 230                                 'patch-page_props-propname-page-index.sql' ],
 231                         [ 'addIndex', 'image', 'img_media_mime', 'patch-img_media_mime-index.sql' ],
 232
 233                         // 1.22
 234                         [ 'doIwlinksIndexNonUnique' ],
 235                         [ 'addIndex', 'iwlinks', 'iwl_prefix_from_title',
 236                                 'patch-iwlinks-from-title-index.sql' ],
 237                         [ 'addField', 'archive', 'ar_id', 'patch-archive-ar_id.sql' ],
 238                         [ 'addField', 'externallinks', 'el_id', 'patch-externallinks-el_id.sql' ],
 239
 240                         // 1.23
 241                         [ 'addField', 'recentchanges', 'rc_source', 'patch-rc_source.sql' ],
 242                         [ 'addIndex', 'logging', 'log_user_text_type_time',
 243                                 'patch-logging_user_text_type_time_index.sql' ],
 244                         [ 'addIndex', 'logging', 'log_user_text_time', 'patch-logging_user_text_time_index.sql' ],
 245                         [ 'addField', 'page', 'page_links_updated', 'patch-page_links_updated.sql' ],
 246                         [ 'addField', 'user', 'user_password_expires', 'patch-user_password_expire.sql' ],
 247
 248                         // 1.24
 249                         [ 'addField', 'page_props', 'pp_sortkey', 'patch-pp_sortkey.sql' ],
 250                         [ 'dropField', 'recentchanges', 'rc_cur_time', 'patch-drop-rc_cur_time.sql' ],
 251                         [ 'addIndex', 'watchlist', 'wl_user_notificationtimestamp',
 252                                 'patch-watchlist-user-notificationtimestamp-index.sql' ],
 253                         [ 'addField', 'page', 'page_lang', 'patch-page_lang.sql' ],
 254                         [ 'addField', 'pagelinks', 'pl_from_namespace', 'patch-pl_from_namespace.sql' ],
 255                         [ 'addField', 'templatelinks', 'tl_from_namespace', 'patch-tl_from_namespace.sql' ],
 256                         [ 'addField', 'imagelinks', 'il_from_namespace', 'patch-il_from_namespace.sql' ],
 257                         [ 'modifyField', 'image', 'img_major_mime',
 258                                 'patch-img_major_mime-chemical.sql' ],
 259                         [ 'modifyField', 'oldimage', 'oi_major_mime',
 260                                 'patch-oi_major_mime-chemical.sql' ],
 261                         [ 'modifyField', 'filearchive', 'fa_major_mime',
 262                                 'patch-fa_major_mime-chemical.sql' ],
 263
 264                         // 1.25
 265                         // note this patch covers other _comment and _description fields too
 266                         [ 'doExtendCommentLengths' ],
 267
 268                         // 1.26
 269                         [ 'dropTable', 'hitcounter' ],
 270                         [ 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ],
 271                         [ 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ],
 272
 273                         // 1.27
 274                         [ 'dropTable', 'msg_resource_links' ],
 275                         [ 'dropTable', 'msg_resource' ],
 276                         [ 'addTable', 'bot_passwords', 'patch-bot_passwords.sql' ],
 277                         [ 'addField', 'watchlist', 'wl_id', 'patch-watchlist-wl_id.sql' ],
 278                         [ 'dropIndex', 'categorylinks', 'cl_collation', 'patch-kill-cl_collation_index.sql' ],
 279                         [ 'addIndex', 'categorylinks', 'cl_collation_ext',
 280                                 'patch-add-cl_collation_ext_index.sql' ],
 281                         [ 'doCollationUpdate' ],
 282
 283                         // 1.28
 284                         [ 'addIndex', 'recentchanges', 'rc_name_type_patrolled_timestamp',
 285                                 'patch-add-rc_name_type_patrolled_timestamp_index.sql' ],
 286                         [ 'doRevisionPageRevIndexNonUnique' ],
 287                         [ 'doNonUniquePlTlIl' ],
 288                         [ 'addField', 'change_tag', 'ct_id', 'patch-change_tag-ct_id.sql' ],
 289                         [ 'modifyField', 'recentchanges', 'rc_ip', 'patch-rc_ip_modify.sql' ],
 290                         [ 'addIndex', 'archive', 'usertext_timestamp', 'patch-rename-ar_usertext_timestamp.sql' ],
 291
 292                         // 1.29
 293                         [ 'addField', 'externallinks', 'el_index_60', 'patch-externallinks-el_index_60.sql' ],
 294                         [ 'dropIndex', 'user_groups', 'ug_user_group', 'patch-user_groups-primary-key.sql' ],
 295                         [ 'addField', 'user_groups', 'ug_expiry', 'patch-user_groups-ug_expiry.sql' ],
 296                         [ 'addIndex', 'image', 'img_user_timestamp', 'patch-image-user-index-2.sql' ],
 297
 298                         // 1.30
 299                         [ 'modifyField', 'image', 'img_media_type', 'patch-add-3d.sql' ],
 300                         [ 'addTable', 'ip_changes', 'patch-ip_changes.sql' ],
 301                         [ 'renameIndex', 'categorylinks', 'cl_from', 'PRIMARY', false,
 302                                 'patch-categorylinks-fix-pk.sql' ],
 303                         [ 'renameIndex', 'templatelinks', 'tl_from', 'PRIMARY', false,
 304                                 'patch-templatelinks-fix-pk.sql' ],
 305                         [ 'renameIndex', 'pagelinks', 'pl_from', 'PRIMARY', false, 'patch-pagelinks-fix-pk.sql' ],
 306                         [ 'renameIndex', 'text', 'old_id', 'PRIMARY', false, 'patch-text-fix-pk.sql' ],
 307                         [ 'renameIndex', 'imagelinks', 'il_from', 'PRIMARY', false, 'patch-imagelinks-fix-pk.sql' ],
 308                         [ 'renameIndex', 'iwlinks', 'iwl_from', 'PRIMARY', false, 'patch-iwlinks-fix-pk.sql' ],
 309                         [ 'renameIndex', 'langlinks', 'll_from', 'PRIMARY', false, 'patch-langlinks-fix-pk.sql' ],
 310                         [ 'renameIndex', 'log_search', 'ls_field_val', 'PRIMARY', false, 'patch-log_search-fix-pk.sql' ],
 311                         [ 'renameIndex', 'module_deps', 'md_module_skin', 'PRIMARY', false,
 312                                 'patch-module_deps-fix-pk.sql' ],
 313                         [ 'renameIndex', 'objectcache', 'keyname', 'PRIMARY', false, 'patch-objectcache-fix-pk.sql' ],
 314                         [ 'renameIndex', 'querycache_info', 'qci_type', 'PRIMARY', false,
 315                                 'patch-querycache_info-fix-pk.sql' ],
 316                         [ 'renameIndex', 'site_stats', 'ss_row_id', 'PRIMARY', false, 'patch-site_stats-fix-pk.sql' ],
 317                         [ 'renameIndex', 'user_former_groups', 'ufg_user_group', 'PRIMARY', false,
 318                                 'patch-user_former_groups-fix-pk.sql' ],
 319                         [ 'renameIndex', 'user_properties', 'user_properties_user_property', 'PRIMARY', false,
 320                                 'patch-user_properties-fix-pk.sql' ],
 321                         [ 'addTable', 'comment', 'patch-comment-table.sql' ],
 322
 323                         // This field was added in 1.31, but is put here so it can be used by 'migrateComments'
 324                         [ 'addField', 'image', 'img_description_id', 'patch-image-img_description_id.sql' ],
 325
 326                         [ 'migrateComments' ],
 327                         [ 'renameIndex', 'l10n_cache', 'lc_lang_key', 'PRIMARY', false,
 328                                 'patch-l10n_cache-primary-key.sql' ],
 329                         [ 'doUnsignedSyncronisation' ],
 330
 331                         // 1.31
 332                         [ 'addTable', 'slots', 'patch-slots.sql' ],
 333                         [ 'addField', 'slots', 'slot_origin', 'patch-slot-origin.sql' ],
 334                         [ 'addTable', 'content', 'patch-content.sql' ],
 335                         [ 'addTable', 'slot_roles', 'patch-slot_roles.sql' ],
 336                         [ 'addTable', 'content_models', 'patch-content_models.sql' ],
 337                         [ 'migrateArchiveText' ],
 338                         [ 'addTable', 'actor', 'patch-actor-table.sql' ],
 339                         [ 'migrateActors' ],
 340                         [ 'modifyField', 'revision', 'rev_text_id', 'patch-rev_text_id-default.sql' ],
 341                         [ 'modifyTable', 'site_stats', 'patch-site_stats-modify.sql' ],
 342                         [ 'populateArchiveRevId' ],
 343                         [ 'addIndex', 'recentchanges', 'rc_namespace_title_timestamp',
 344                                 'patch-recentchanges-nttindex.sql' ],
 345
 346                         // 1.32
 347                         [ 'addTable', 'change_tag_def', 'patch-change_tag_def.sql' ],
 348                         [ 'populateExternallinksIndex60' ],
 349                         [ 'modifyfield', 'externallinks', 'el_index_60',
 350                                 'patch-externallinks-el_index_60-drop-default.sql' ],
 351                         [ 'runMaintenance', DeduplicateArchiveRevId::class, 'maintenance/deduplicateArchiveRevId.php' ],
 352                         [ 'addField', 'change_tag', 'ct_tag_id', 'patch-change_tag-tag_id.sql' ],
 353                         [ 'addIndex', 'archive', 'ar_revid_uniq', 'patch-archive-ar_rev_id-unique.sql' ],
 354                         [ 'populateContentTables' ],
 355                         [ 'addIndex', 'logging', 'log_type_action', 'patch-logging-log-type-action-index.sql' ],
 356                         [ 'dropIndex', 'logging', 'type_action', 'patch-logging-drop-type-action-index.sql' ],
 357                         [ 'renameIndex', 'interwiki', 'iw_prefix', 'PRIMARY', false, 'patch-interwiki-fix-pk.sql' ],
 358                         [ 'renameIndex', 'page_props', 'pp_page_propname', 'PRIMARY', false,
 359                                 'patch-page_props-fix-pk.sql' ],
 360                         [ 'renameIndex', 'protected_titles', 'pt_namespace_title', 'PRIMARY', false,
 361                                 'patch-protected_titles-fix-pk.sql' ],
 362                         [ 'renameIndex', 'site_identifiers', 'site_ids_type', 'PRIMARY', false,
 363                                 'patch-site_identifiers-fix-pk.sql' ],
 364                         [ 'addIndex', 'recentchanges', 'rc_this_oldid', 'patch-recentchanges-rc_this_oldid-index.sql' ],
 365                         [ 'dropTable', 'transcache' ],
 366                         [ 'runMaintenance', PopulateChangeTagDef::class, 'maintenance/populateChangeTagDef.php' ],
 367                         [ 'addIndex', 'change_tag', 'change_tag_rc_tag_id',
 368                                 'patch-change_tag-change_tag_rc_tag_id.sql' ],
 369                         [ 'addField', 'ipblocks', 'ipb_sitewide', 'patch-ipb_sitewide.sql' ],
 370                         [ 'addTable', 'ipblocks_restrictions', 'patch-ipblocks_restrictions-table.sql' ],
 371                         [ 'migrateImageCommentTemp' ],
 372
 373                         // 1,33
 374                         [ 'dropField', 'change_tag', 'ct_tag', 'patch-drop-ct_tag.sql' ],
 375                         [ 'dropTable', 'valid_tag' ],
 376                         [ 'dropTable', 'tag_summary' ],
 377                 ];
 378         }
 379
 380         /**
 381          * 1.4 betas were missing the 'binary' marker from logging.log_title,
 382          * which causes a collation mismatch error on joins in MySQL 4.1.
 383          *
 384          * @param string $table Table name
 385          * @param string $field Field name to check
 386          * @param string $patchFile Path to the patch to correct the field
 387          * @return bool
 388          */
 389         protected function checkBin( $table, $field, $patchFile ) {
 390                 if ( !$this->doTable( $table ) ) {
 391                         return true;
 392                 }
 393
 394                 /** @var MySQLField $fieldInfo */
 395                 $fieldInfo = $this->db->fieldInfo( $table, $field );
 396                 if ( $fieldInfo->isBinary() ) {
 397                         $this->output( "...$table table has correct $field encoding.\n" );
 398                 } else {
 399                         $this->applyPatch( $patchFile, false, "Fixing $field encoding on $table table" );
 400                 }
 401         }
 402
 403         /**
 404          * Check whether an index contain a field
 405          *
 406          * @param string $table Table name
 407          * @param string $index Index name to check
 408          * @param string $field Field that should be in the index
 409          * @return bool
 410          */
 411         protected function indexHasField( $table, $index, $field ) {
 412                 if ( !$this->doTable( $table ) ) {
 413                         return true;
 414                 }
 415
 416                 $info = $this->db->indexInfo( $table, $index, __METHOD__ );
 417                 if ( $info ) {
 418                         foreach ( $info as $row ) {
 419                                 if ( $row->Column_name == $field ) {
 420                                         $this->output( "...index $index on table $table includes field $field.\n" );
 421
 422                                         return true;
 423                                 }
 424                         }
 425                 }
 426                 $this->output( "...index $index on table $table has no field $field; added.\n" );
 427
 428                 return false;
 429         }
 430
 431         /**
 432          * Check that interwiki table exists; if it doesn't source it
 433          */
 434         protected function doInterwikiUpdate() {
 435                 global $IP;
 436
 437                 if ( !$this->doTable( 'interwiki' ) ) {
 438                         return;
 439                 }
 440
 441                 if ( $this->db->tableExists( "interwiki", __METHOD__ ) ) {
 442                         $this->output( "...already have interwiki table\n" );
 443
 444                         return;
 445                 }
 446
 447                 $this->applyPatch( 'patch-interwiki.sql', false, 'Creating interwiki table' );
 448                 $this->applyPatch(
 449                         "$IP/maintenance/interwiki.sql",
 450                         true,
 451                         'Adding default interwiki definitions'
 452                 );
 453         }
 454
 455         /**
 456          * Check that proper indexes are in place
 457          */
 458         protected function doIndexUpdate() {
 459                 $meta = $this->db->fieldInfo( 'recentchanges', 'rc_timestamp' );
 460                 if ( $meta === false ) {
 461                         throw new MWException( 'Missing rc_timestamp field of recentchanges table. Should not happen.' );
 462                 }
 463                 if ( $meta->isMultipleKey() ) {
 464                         $this->output( "...indexes seem up to 20031107 standards.\n" );
 465
 466                         return;
 467                 }
 468
 469                 $this->applyPatch( 'patch-indexes.sql', true, "Updating indexes to 20031107" );
 470         }
 471
 472         protected function doOldLinksUpdate() {
 473                 $cl = $this->maintenance->runChild( ConvertLinks::class );
 474                 $cl->execute();
 475         }
 476
 477         protected function doFixAncientImagelinks() {
 478                 $info = $this->db->fieldInfo( 'imagelinks', 'il_from' );
 479                 if ( !$info || $info->type() !== 'string' ) {
 480                         $this->output( "...il_from OK\n" );
 481
 482                         return;
 483                 }
 484
 485                 $applied = $this->applyPatch(
 486                         'patch-fix-il_from.sql',
 487                         false,
 488                         'Fixing ancient broken imagelinks table.'
 489                 );
 490
 491                 if ( $applied ) {
 492                         $this->output( "NOTE: you will have to run maintenance/refreshLinks.php after this." );
 493                 }
 494         }
 495
 496         /**
 497          * Check if we need to add talk page rows to the watchlist
 498          */
 499         function doWatchlistUpdate() {
 500                 $talk = $this->db->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', __METHOD__ );
 501                 $nontalk = $this->db->selectField(
 502                         'watchlist',
 503                         'count(*)',
 504                         'NOT (wl_namespace & 1)',
 505                         __METHOD__
 506                 );
 507                 if ( $talk == $nontalk ) {
 508                         $this->output( "...watchlist talk page rows already present.\n" );
 509
 510                         return;
 511                 }
 512
 513                 $insertOpts = [ 'IGNORE' ];
 514                 $selectOpts = [];
 515
 516                 // If wl_id exists, make insertSelect() more replication-safe by
 517                 // ordering on that column. If not, hint that it should be safe anyway.
 518                 if ( $this->db->fieldExists( 'watchlist', 'wl_id', __METHOD__ ) ) {
 519                         $selectOpts['ORDER BY'] = 'wl_id';
 520                 } else {
 521                         $insertOpts[] = 'NO_AUTO_COLUMNS';
 522                 }
 523
 524                 $this->output( "Adding missing watchlist talk page rows... " );
 525                 $this->db->insertSelect( 'watchlist', 'watchlist',
 526                         [
 527                                 'wl_user' => 'wl_user',
 528                                 'wl_namespace' => 'wl_namespace | 1',
 529                                 'wl_title' => 'wl_title',
 530                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 531                         ], [ 'NOT (wl_namespace & 1)' ], __METHOD__, $insertOpts, $selectOpts );
 532                 $this->output( "done.\n" );
 533
 534                 $this->output( "Adding missing watchlist subject page rows... " );
 535                 $this->db->insertSelect( 'watchlist', 'watchlist',
 536                         [
 537                                 'wl_user' => 'wl_user',
 538                                 'wl_namespace' => 'wl_namespace & ~1',
 539                                 'wl_title' => 'wl_title',
 540                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 541                         ], [ 'wl_namespace & 1' ], __METHOD__, $insertOpts, $selectOpts );
 542                 $this->output( "done.\n" );
 543         }
 544
 545         function doSchemaRestructuring() {
 546                 if ( $this->db->tableExists( 'page', __METHOD__ ) ) {
 547                         $this->output( "...page table already exists.\n" );
 548
 549                         return;
 550                 }
 551
 552                 $this->output( "...converting from cur/old to page/revision/text DB structure.\n" );
 553                 $this->output( wfTimestamp( TS_DB ) );
 554                 $this->output( "......checking for duplicate entries.\n" );
 555
 556                 list( $cur, $old, $page, $revision, $text ) = $this->db->tableNamesN(
 557                         'cur',
 558                         'old',
 559                         'page',
 560                         'revision',
 561                         'text'
 562                 );
 563
 564                 $rows = $this->db->query( "
 565                         SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 566                         FROM $cur
 567                         GROUP BY cur_title, cur_namespace
 568                         HAVING c>1",
 569                         __METHOD__
 570                 );
 571
 572                 if ( $rows->numRows() > 0 ) {
 573                         $this->output( wfTimestamp( TS_DB ) );
 574                         $this->output( "......<b>Found duplicate entries</b>\n" );
 575                         $this->output( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 576                         $duplicate = [];
 577                         foreach ( $rows as $row ) {
 578                                 if ( !isset( $duplicate[$row->cur_namespace] ) ) {
 579                                         $duplicate[$row->cur_namespace] = [];
 580                                 }
 581
 582                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 583                                 $this->output( sprintf(
 584                                         "      %-60s %3s %5s\n",
 585                                         $row->cur_title, $row->cur_namespace,
 586                                         $row->c
 587                                 ) );
 588                         }
 589                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 590                         $dupeTitles = [];
 591                         foreach ( $duplicate as $ns => $titles ) {
 592                                 $dupeTitles[] = "( cur_namespace = {$ns} AND cur_title in ("
 593                                         . $this->db->makeList( $titles ) . ") ) \n";
 594                         }
 595                         $sql .= $this->db->makeList( $dupeTitles, IDatabase::LIST_OR );
 596                         # By sorting descending, the most recent entry will be the first in the list.
 597                         # All following entries will be deleted by the next while-loop.
 598                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 599
 600                         $rows = $this->db->query( $sql, __METHOD__ );
 601
 602                         $prev_title = $prev_namespace = false;
 603                         $deleteId = [];
 604
 605                         foreach ( $rows as $row ) {
 606                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 607                                         $deleteId[] = (int)$row->cur_id;
 608                                 }
 609                                 $prev_title = $row->cur_title;
 610                                 $prev_namespace = $row->cur_namespace;
 611                         }
 612                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . implode( ',', $deleteId ) . ')';
 613                         $this->db->query( $sql, __METHOD__ );
 614                         $this->output( wfTimestamp( TS_DB ) );
 615                         $this->output( "......<b>Deleted</b> " . $this->db->affectedRows() . " records.\n" );
 616                 }
 617
 618                 $this->output( wfTimestamp( TS_DB ) );
 619                 $this->output( "......Creating tables.\n" );
 620                 $this->db->query( "CREATE TABLE $page (
 621                         page_id int(8) unsigned NOT NULL auto_increment,
 622                         page_namespace int NOT NULL,
 623                         page_title varchar(255) binary NOT NULL,
 624                         page_restrictions tinyblob NOT NULL,
 625                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 626                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 627                         page_random real unsigned NOT NULL,
 628                         page_touched char(14) binary NOT NULL default '',
 629                         page_latest int(8) unsigned NOT NULL,
 630                         page_len int(8) unsigned NOT NULL,
 631
 632                         PRIMARY KEY page_id (page_id),
 633                         UNIQUE INDEX name_title (page_namespace,page_title),
 634                         INDEX (page_random),
 635                         INDEX (page_len)
 636                         ) ENGINE=InnoDB", __METHOD__ );
 637                 $this->db->query( "CREATE TABLE $revision (
 638                         rev_id int(8) unsigned NOT NULL auto_increment,
 639                         rev_page int(8) unsigned NOT NULL,
 640                         rev_comment tinyblob NOT NULL,
 641                         rev_user int(5) unsigned NOT NULL default '0',
 642                         rev_user_text varchar(255) binary NOT NULL default '',
 643                         rev_timestamp char(14) binary NOT NULL default '',
 644                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 645                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 646                         rev_len int(8) unsigned,
 647                         rev_parent_id int(8) unsigned default NULL,
 648                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 649                         UNIQUE INDEX rev_id (rev_id),
 650                         INDEX rev_timestamp (rev_timestamp),
 651                         INDEX page_timestamp (rev_page,rev_timestamp),
 652                         INDEX user_timestamp (rev_user,rev_timestamp),
 653                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 654                         ) ENGINE=InnoDB", __METHOD__ );
 655
 656                 $this->output( wfTimestamp( TS_DB ) );
 657                 $this->output( "......Locking tables.\n" );
 658                 $this->db->query(
 659                         "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE",
 660                         __METHOD__
 661                 );
 662
 663                 $maxold = intval( $this->db->selectField( 'old', 'max(old_id)', '', __METHOD__ ) );
 664                 $this->output( wfTimestamp( TS_DB ) );
 665                 $this->output( "......maxold is {$maxold}\n" );
 666
 667                 $this->output( wfTimestamp( TS_DB ) );
 668                 global $wgLegacySchemaConversion;
 669                 if ( $wgLegacySchemaConversion ) {
 670                         // Create HistoryBlobCurStub entries.
 671                         // Text will be pulled from the leftover 'cur' table at runtime.
 672                         $this->output( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 673                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 674                         $cur_flags = "'object'";
 675                 } else {
 676                         // Copy all cur text in immediately: this may take longer but avoids
 677                         // having to keep an extra table around.
 678                         $this->output( "......Moving text from cur.\n" );
 679                         $cur_text = 'cur_text';
 680                         $cur_flags = "''";
 681                 }
 682                 $this->db->query(
 683                         "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user,
 684                                 old_user_text, old_timestamp, old_minor_edit, old_flags)
 685                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text,
 686                                 cur_timestamp, cur_minor_edit, $cur_flags
 687                         FROM $cur",
 688                         __METHOD__
 689                 );
 690
 691                 $this->output( wfTimestamp( TS_DB ) );
 692                 $this->output( "......Setting up revision table.\n" );
 693                 $this->db->query(
 694                         "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user,
 695                                 rev_user_text, rev_timestamp, rev_minor_edit)
 696                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 697                                 old_timestamp, old_minor_edit
 698                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title",
 699                         __METHOD__
 700                 );
 701
 702                 $this->output( wfTimestamp( TS_DB ) );
 703                 $this->output( "......Setting up page table.\n" );
 704                 $this->db->query(
 705                         "INSERT INTO $page (page_id, page_namespace, page_title,
 706                                 page_restrictions, page_is_redirect, page_is_new, page_random,
 707                                 page_touched, page_latest, page_len)
 708                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions,
 709                                 cur_is_redirect, cur_is_new, cur_random, cur_touched, rev_id, LENGTH(cur_text)
 710                         FROM $cur,$revision
 711                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}",
 712                         __METHOD__
 713                 );
 714
 715                 $this->output( wfTimestamp( TS_DB ) );
 716                 $this->output( "......Unlocking tables.\n" );
 717                 $this->db->query( "UNLOCK TABLES", __METHOD__ );
 718
 719                 $this->output( wfTimestamp( TS_DB ) );
 720                 $this->output( "......Renaming old.\n" );
 721                 $this->db->query( "ALTER TABLE $old RENAME TO $text", __METHOD__ );
 722
 723                 $this->output( wfTimestamp( TS_DB ) );
 724                 $this->output( "...done.\n" );
 725         }
 726
 727         protected function doNamespaceSize() {
 728                 $tables = [
 729                         'page' => 'page',
 730                         'archive' => 'ar',
 731                         'recentchanges' => 'rc',
 732                         'watchlist' => 'wl',
 733                         'querycache' => 'qc',
 734                         'logging' => 'log',
 735                 ];
 736                 foreach ( $tables as $table => $prefix ) {
 737                         $field = $prefix . '_namespace';
 738
 739                         $tablename = $this->db->tableName( $table );
 740                         $result = $this->db->query( "SHOW COLUMNS FROM $tablename LIKE '$field'", __METHOD__ );
 741                         $info = $this->db->fetchObject( $result );
 742
 743                         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 744                                 $this->output( "...$field is already a full int ($info->Type).\n" );
 745                         } else {
 746                                 $this->output( "Promoting $field from $info->Type to int... " );
 747                                 $this->db->query( "ALTER TABLE $tablename MODIFY $field int NOT NULL", __METHOD__ );
 748                                 $this->output( "done.\n" );
 749                         }
 750                 }
 751         }
 752
 753         protected function doPagelinksUpdate() {
 754                 if ( $this->db->tableExists( 'pagelinks', __METHOD__ ) ) {
 755                         $this->output( "...already have pagelinks table.\n" );
 756
 757                         return;
 758                 }
 759
 760                 $this->applyPatch(
 761                         'patch-pagelinks.sql',
 762                         false,
 763                         'Converting links and brokenlinks tables to pagelinks'
 764                 );
 765
 766                 foreach (
 767                         MediaWikiServices::getInstance()->getContentLanguage()->getNamespaces() as $ns => $name
 768                 ) {
 769                         if ( $ns == 0 ) {
 770                                 continue;
 771                         }
 772
 773                         $this->output( "Cleaning up broken links for namespace $ns... " );
 774                         $this->db->update( 'pagelinks',
 775                                 [
 776                                         'pl_namespace' => $ns,
 777                                         "pl_title = TRIM(LEADING {$this->db->addQuotes( "$name:" )} FROM pl_title)",
 778                                 ],
 779                                 [
 780                                         'pl_namespace' => 0,
 781                                         'pl_title' . $this->db->buildLike( "$name:", $this->db->anyString() ),
 782                                 ],
 783                                 __METHOD__
 784                         );
 785                         $this->output( "done.\n" );
 786                 }
 787         }
 788
 789         protected function doUserUniqueUpdate() {
 790                 if ( !$this->doTable( 'user' ) ) {
 791                         return true;
 792                 }
 793
 794                 $duper = new UserDupes( $this->db, [ $this, 'output' ] );
 795                 if ( $duper->hasUniqueIndex() ) {
 796                         $this->output( "...already have unique user_name index.\n" );
 797
 798                         return;
 799                 }
 800
 801                 if ( !$duper->clearDupes() ) {
 802                         $this->output( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 803                 }
 804                 $this->applyPatch( 'patch-user_nameindex.sql', false, "Adding unique index on user_name" );
 805         }
 806
 807         protected function doUserGroupsUpdate() {
 808                 if ( !$this->doTable( 'user_groups' ) ) {
 809                         return true;
 810                 }
 811
 812                 if ( $this->db->tableExists( 'user_groups', __METHOD__ ) ) {
 813                         $info = $this->db->fieldInfo( 'user_groups', 'ug_group' );
 814                         if ( $info->type() == 'int' ) {
 815                                 $oldug = $this->db->tableName( 'user_groups' );
 816                                 $newug = $this->db->tableName( 'user_groups_bogus' );
 817                                 $this->output( "user_groups table exists but is in bogus intermediate " .
 818                                         "format. Renaming to $newug... " );
 819                                 $this->db->query( "ALTER TABLE $oldug RENAME TO $newug", __METHOD__ );
 820                                 $this->output( "done.\n" );
 821
 822                                 $this->applyPatch( 'patch-user_groups.sql', false, "Re-adding fresh user_groups table" );
 823
 824                                 $this->output( "***\n" );
 825                                 $this->output( "*** WARNING: You will need to manually fix up user " .
 826                                         "permissions in the user_groups\n" );
 827                                 $this->output( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 828                                 $this->output( "***\n" );
 829                         } else {
 830                                 $this->output( "...user_groups table exists and is in current format.\n" );
 831                         }
 832
 833                         return;
 834                 }
 835
 836                 $this->applyPatch( 'patch-user_groups.sql', false, "Adding user_groups table" );
 837
 838                 if ( !$this->db->tableExists( 'user_rights', __METHOD__ ) ) {
 839                         if ( $this->db->fieldExists( 'user', 'user_rights', __METHOD__ ) ) {
 840                                 $this->applyPatch(
 841                                         'patch-user_rights.sql',
 842                                         false,
 843                                         'Upgrading from a 1.3 or older database? Breaking out user_rights for conversion'
 844                                 );
 845                         } else {
 846                                 $this->output( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 847                                 $this->output( "*** You may need to manually configure some sysops by manipulating\n" );
 848                                 $this->output( "*** the user_groups table.\n" );
 849
 850                                 return;
 851                         }
 852                 }
 853
 854                 $this->output( "Converting user_rights table to user_groups... " );
 855                 $result = $this->db->select( 'user_rights',
 856                         [ 'ur_user', 'ur_rights' ],
 857                         [ "ur_rights != ''" ],
 858                         __METHOD__ );
 859
 860                 foreach ( $result as $row ) {
 861                         $groups = array_unique(
 862                                 array_map( 'trim',
 863                                         explode( ',', $row->ur_rights ) ) );
 864
 865                         foreach ( $groups as $group ) {
 866                                 $this->db->insert( 'user_groups',
 867                                         [
 868                                                 'ug_user' => $row->ur_user,
 869                                                 'ug_group' => $group ],
 870                                         __METHOD__ );
 871                         }
 872                 }
 873                 $this->output( "done.\n" );
 874         }
 875
 876         /**
 877          * Make sure wl_notificationtimestamp can be NULL,
 878          * and update old broken items.
 879          */
 880         protected function doWatchlistNull() {
 881                 $info = $this->db->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 882                 if ( !$info ) {
 883                         return;
 884                 }
 885                 if ( $info->isNullable() ) {
 886                         $this->output( "...wl_notificationtimestamp is already nullable.\n" );
 887
 888                         return;
 889                 }
 890
 891                 $this->applyPatch(
 892                         'patch-watchlist-null.sql',
 893                         false,
 894                         'Making wl_notificationtimestamp nullable'
 895                 );
 896         }
 897
 898         /**
 899          * Set page_random field to a random value where it is equals to 0.
 900          *
 901          * @see T5946
 902          */
 903         protected function doPageRandomUpdate() {
 904                 $page = $this->db->tableName( 'page' );
 905                 $this->db->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", __METHOD__ );
 906                 $rows = $this->db->affectedRows();
 907
 908                 if ( $rows ) {
 909                         $this->output( "Set page_random to a random value on $rows rows where it was set to 0\n" );
 910                 } else {
 911                         $this->output( "...no page_random rows needed to be set\n" );
 912                 }
 913         }
 914
 915         protected function doTemplatelinksUpdate() {
 916                 if ( $this->db->tableExists( 'templatelinks', __METHOD__ ) ) {
 917                         $this->output( "...templatelinks table already exists\n" );
 918
 919                         return;
 920                 }
 921
 922                 $this->applyPatch( 'patch-templatelinks.sql', false, "Creating templatelinks table" );
 923
 924                 $this->output( "Populating...\n" );
 925                 $services = MediaWikiServices::getInstance();
 926                 if ( $services->getDBLoadBalancer()->getServerCount() > 1 ) {
 927                         // Slow, replication-friendly update
 928                         $res = $this->db->select( 'pagelinks', [ 'pl_from', 'pl_namespace', 'pl_title' ],
 929                                 [ 'pl_namespace' => NS_TEMPLATE ], __METHOD__ );
 930                         $count = 0;
 931                         foreach ( $res as $row ) {
 932                                 $count = ( $count + 1 ) % 100;
 933                                 if ( $count == 0 ) {
 934                                         $lbFactory = $services->getDBLoadBalancerFactory();
 935                                         $lbFactory->waitForReplication( [
 936                                                 'domain' => $lbFactory->getLocalDomainID(),
 937                                                 'timeout' => self::REPLICATION_WAIT_TIMEOUT
 938                                         ] );
 939                                 }
 940                                 $this->db->insert( 'templatelinks',
 941                                         [
 942                                                 'tl_from' => $row->pl_from,
 943                                                 'tl_namespace' => $row->pl_namespace,
 944                                                 'tl_title' => $row->pl_title,
 945                                         ], __METHOD__
 946                                 );
 947                         }
 948                 } else {
 949                         // Fast update
 950                         $this->db->insertSelect( 'templatelinks', 'pagelinks',
 951                                 [
 952                                         'tl_from' => 'pl_from',
 953                                         'tl_namespace' => 'pl_namespace',
 954                                         'tl_title' => 'pl_title'
 955                                 ], [
 956                                         'pl_namespace' => 10
 957                                 ], __METHOD__,
 958                                 [ 'NO_AUTO_COLUMNS' ] // There's no "tl_id" auto-increment field
 959                         );
 960                 }
 961                 $this->output( "Done. Please run maintenance/refreshLinks.php for a more " .
 962                         "thorough templatelinks update.\n" );
 963         }
 964
 965         protected function doBacklinkingIndicesUpdate() {
 966                 if ( !$this->indexHasField( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 967                         !$this->indexHasField( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 968                         !$this->indexHasField( 'imagelinks', 'il_to', 'il_from' )
 969                 ) {
 970                         $this->applyPatch( 'patch-backlinkindexes.sql', false, "Updating backlinking indices" );
 971                 }
 972         }
 973
 974         /**
 975          * Adding page_restrictions table, obsoleting page.page_restrictions.
 976          * Migrating old restrictions to new table
 977          * -- Andrew Garrett, January 2007.
 978          */
 979         protected function doRestrictionsUpdate() {
 980                 if ( $this->db->tableExists( 'page_restrictions', __METHOD__ ) ) {
 981                         $this->output( "...page_restrictions table already exists.\n" );
 982
 983                         return;
 984                 }
 985
 986                 $this->applyPatch(
 987                         'patch-page_restrictions.sql',
 988                         false,
 989                         'Creating page_restrictions table (1/2)'
 990                 );
 991                 $this->applyPatch(
 992                         'patch-page_restrictions_sortkey.sql',
 993                         false,
 994                         'Creating page_restrictions table (2/2)'
 995                 );
 996                 $this->output( "done.\n" );
 997
 998                 $this->output( "Migrating old restrictions to new table...\n" );
 999                 $task = $this->maintenance->runChild( UpdateRestrictions::class );
1000                 $task->execute();
1001         }
1002
1003         protected function doCategorylinksIndicesUpdate() {
1004                 if ( !$this->indexHasField( 'categorylinks', 'cl_sortkey', 'cl_from' ) ) {
1005                         $this->applyPatch( 'patch-categorylinksindex.sql', false, "Updating categorylinks Indices" );
1006                 }
1007         }
1008
1009         protected function doCategoryPopulation() {
1010                 if ( $this->updateRowExists( 'populate category' ) ) {
1011                         $this->output( "...category table already populated.\n" );
1012
1013                         return;
1014                 }
1015
1016                 $this->output(
1017                         "Populating category table, printing progress markers. " .
1018                         "For large databases, you\n" .
1019                         "may want to hit Ctrl-C and do this manually with maintenance/\n" .
1020                         "populateCategory.php.\n"
1021                 );
1022                 $task = $this->maintenance->runChild( PopulateCategory::class );
1023                 $task->execute();
1024                 $this->output( "Done populating category table.\n" );
1025         }
1026
1027         protected function doPopulateParentId() {
1028                 if ( !$this->updateRowExists( 'populate rev_parent_id' ) ) {
1029                         $this->output(
1030                                 "Populating rev_parent_id fields, printing progress markers. For large\n" .
1031                                 "databases, you may want to hit Ctrl-C and do this manually with\n" .
1032                                 "maintenance/populateParentId.php.\n" );
1033
1034                         $task = $this->maintenance->runChild( PopulateParentId::class );
1035                         $task->execute();
1036                 }
1037         }
1038
1039         protected function doMaybeProfilingMemoryUpdate() {
1040                 if ( !$this->doTable( 'profiling' ) ) {
1041                         return true;
1042                 }
1043
1044                 if ( !$this->db->tableExists( 'profiling', __METHOD__ ) ) {
1045                         return true;
1046                 } elseif ( $this->db->fieldExists( 'profiling', 'pf_memory', __METHOD__ ) ) {
1047                         $this->output( "...profiling table has pf_memory field.\n" );
1048
1049                         return true;
1050                 }
1051
1052                 return $this->applyPatch(
1053                         'patch-profiling-memory.sql',
1054                         false,
1055                         'Adding pf_memory field to table profiling'
1056                 );
1057         }
1058
1059         protected function doFilearchiveIndicesUpdate() {
1060                 $info = $this->db->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
1061                 if ( !$info ) {
1062                         $this->applyPatch( 'patch-filearchive-user-index.sql', false, "Updating filearchive indices" );
1063                 }
1064
1065                 return true;
1066         }
1067
1068         protected function doNonUniquePlTlIl() {
1069                 $info = $this->db->indexInfo( 'pagelinks', 'pl_namespace' );
1070                 if ( is_array( $info ) && $info[0]->Non_unique ) {
1071                         $this->output( "...pl_namespace, tl_namespace, il_to indices are already non-UNIQUE.\n" );
1072
1073                         return true;
1074                 }
1075                 if ( $this->skipSchema ) {
1076                         $this->output( "...skipping schema change (making pl_namespace, tl_namespace " .
1077                                 "and il_to indices non-UNIQUE).\n" );
1078
1079                         return false;
1080                 }
1081
1082                 return $this->applyPatch(
1083                         'patch-pl-tl-il-nonunique.sql',
1084                         false,
1085                         'Making pl_namespace, tl_namespace and il_to indices non-UNIQUE'
1086                 );
1087         }
1088
1089         protected function doUpdateMimeMinorField() {
1090                 if ( $this->updateRowExists( 'mime_minor_length' ) ) {
1091                         $this->output( "...*_mime_minor fields are already long enough.\n" );
1092
1093                         return;
1094                 }
1095
1096                 $this->applyPatch(
1097                         'patch-mime_minor_length.sql',
1098                         false,
1099                         'Altering all *_mime_minor fields to 100 bytes in size'
1100                 );
1101         }
1102
1103         protected function doClFieldsUpdate() {
1104                 if ( $this->updateRowExists( 'cl_fields_update' ) ) {
1105                         $this->output( "...categorylinks up-to-date.\n" );
1106
1107                         return;
1108                 }
1109
1110                 $this->applyPatch(
1111                         'patch-categorylinks-better-collation2.sql',
1112                         false,
1113                         'Updating categorylinks (again)'
1114                 );
1115         }
1116
1117         protected function doLangLinksLengthUpdate() {
1118                 $langlinks = $this->db->tableName( 'langlinks' );
1119                 $res = $this->db->query( "SHOW COLUMNS FROM $langlinks LIKE 'll_lang'" );
1120                 $row = $this->db->fetchObject( $res );
1121
1122                 if ( $row && $row->Type == "varbinary(10)" ) {
1123                         $this->applyPatch(
1124                                 'patch-langlinks-ll_lang-20.sql',
1125                                 false,
1126                                 'Updating length of ll_lang in langlinks'
1127                         );
1128                 } else {
1129                         $this->output( "...ll_lang is up-to-date.\n" );
1130                 }
1131         }
1132
1133         protected function doUserNewTalkTimestampNotNull() {
1134                 if ( !$this->doTable( 'user_newtalk' ) ) {
1135                         return true;
1136                 }
1137
1138                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_last_timestamp' );
1139                 if ( $info === false ) {
1140                         return;
1141                 }
1142                 if ( $info->isNullable() ) {
1143                         $this->output( "...user_last_timestamp is already nullable.\n" );
1144
1145                         return;
1146                 }
1147
1148                 $this->applyPatch(
1149                         'patch-user-newtalk-timestamp-null.sql',
1150                         false,
1151                         'Making user_last_timestamp nullable'
1152                 );
1153         }
1154
1155         protected function doIwlinksIndexNonUnique() {
1156                 $info = $this->db->indexInfo( 'iwlinks', 'iwl_prefix_title_from' );
1157                 if ( is_array( $info ) && $info[0]->Non_unique ) {
1158                         $this->output( "...iwl_prefix_title_from index is already non-UNIQUE.\n" );
1159
1160                         return true;
1161                 }
1162                 if ( $this->skipSchema ) {
1163                         $this->output( "...skipping schema change (making iwl_prefix_title_from index non-UNIQUE).\n" );
1164
1165                         return false;
1166                 }
1167
1168                 return $this->applyPatch(
1169                         'patch-iwl_prefix_title_from-non-unique.sql',
1170                         false,
1171                         'Making iwl_prefix_title_from index non-UNIQUE'
1172                 );
1173         }
1174
1175         protected function doUnsignedSyncronisation() {
1176                 $sync = [
1177                         [ 'table' => 'bot_passwords', 'field' => 'bp_user' ],
1178                         [ 'table' => 'change_tag', 'field' => 'ct_log_id' ],
1179                         [ 'table' => 'change_tag', 'field' => 'ct_rev_id' ],
1180                         [ 'table' => 'page_restrictions', 'field' => 'pr_user' ],
1181                         [ 'table' => 'user_newtalk', 'field' => 'user_id' ],
1182                         [ 'table' => 'user_properties', 'field' => 'up_user' ],
1183                 ];
1184
1185                 foreach ( $sync as $s ) {
1186                         if ( !$this->doTable( $s['table'] ) ) {
1187                                 continue;
1188                         }
1189
1190                         $info = $this->db->fieldInfo( $s['table'], $s['field'] );
1191                         if ( $info === false ) {
1192                                 continue;
1193                         }
1194                         $fullName = "{$s['table']}.{$s['field']}";
1195                         if ( $info->isUnsigned() ) {
1196                                 $this->output( "...$fullName is already unsigned int.\n" );
1197
1198                                 continue;
1199                         }
1200
1201                         $this->applyPatch(
1202                                 "patch-{$s['table']}-{$s['field']}-unsigned.sql",
1203                                 false,
1204                                 "Making $fullName into an unsigned int"
1205                         );
1206                 }
1207
1208                 return true;
1209         }
1210
1211         protected function doRevisionPageRevIndexNonUnique() {
1212                 if ( !$this->doTable( 'revision' ) ) {
1213                         return true;
1214                 } elseif ( !$this->db->indexExists( 'revision', 'rev_page_id' ) ) {
1215                         $this->output( "...rev_page_id index not found on revision.\n" );
1216                         return true;
1217                 }
1218
1219                 if ( !$this->db->indexUnique( 'revision', 'rev_page_id' ) ) {
1220                         $this->output( "...rev_page_id index already non-unique.\n" );
1221                         return true;
1222                 }
1223
1224                 return $this->applyPatch(
1225                         'patch-revision-page-rev-index-nonunique.sql',
1226                         false,
1227                         'Making rev_page_id index non-unique'
1228                 );
1229         }
1230
1231         protected function doExtendCommentLengths() {
1232                 $table = $this->db->tableName( 'revision' );
1233                 $res = $this->db->query( "SHOW COLUMNS FROM $table LIKE 'rev_comment'" );
1234                 $row = $this->db->fetchObject( $res );
1235
1236                 if ( $row && ( $row->Type !== "varbinary(767)" || $row->Default !== "" ) ) {
1237                         $this->applyPatch(
1238                                 'patch-editsummary-length.sql',
1239                                 false,
1240                                 'Extending edit summary lengths (and setting defaults)'
1241                         );
1242                 } else {
1243                         $this->output( "...comment fields are up to date.\n" );
1244                 }
1245         }
1246
1247         public function getSchemaVars() {
1248                 global $wgDBTableOptions;
1249
1250                 $vars = [];
1251                 $vars['wgDBTableOptions'] = str_replace( 'TYPE', 'ENGINE', $wgDBTableOptions );
1252                 $vars['wgDBTableOptions'] = str_replace(
1253                         'CHARSET=mysql4',
1254                         'CHARSET=binary',
1255                         $vars['wgDBTableOptions']
1256                 );
1257
1258                 return $vars;
1259         }
1260 }