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                         [ 'addTable', 'transcache', 'patch-transcache.sql' ],
  88                         [ 'addField', 'interwiki', 'iw_trans', 'patch-interwiki-trans.sql' ],
  89
  90                         // 1.6
  91                         [ 'doWatchlistNull' ],
  92                         [ 'addIndex', 'logging', 'times', 'patch-logging-times-index.sql' ],
  93                         [ 'addField', 'ipblocks', 'ipb_range_start', 'patch-ipb_range_start.sql' ],
  94                         [ 'doPageRandomUpdate' ],
  95                         [ 'addField', 'user', 'user_registration', 'patch-user_registration.sql' ],
  96                         [ 'doTemplatelinksUpdate' ],
  97                         [ 'addTable', 'externallinks', 'patch-externallinks.sql' ],
  98                         [ 'addTable', 'job', 'patch-job.sql' ],
  99                         [ 'addField', 'site_stats', 'ss_images', 'patch-ss_images.sql' ],
 100                         [ 'addTable', 'langlinks', 'patch-langlinks.sql' ],
 101                         [ 'addTable', 'querycache_info', 'patch-querycacheinfo.sql' ],
 102                         [ 'addTable', 'filearchive', 'patch-filearchive.sql' ],
 103                         [ 'addField', 'ipblocks', 'ipb_anon_only', 'patch-ipb_anon_only.sql' ],
 104                         [ 'addIndex', 'recentchanges', 'rc_ns_usertext', 'patch-recentchanges-utindex.sql' ],
 105                         [ 'addIndex', 'recentchanges', 'rc_user_text', 'patch-rc_user_text-index.sql' ],
 106
 107                         // 1.9
 108                         [ 'addField', 'user', 'user_newpass_time', 'patch-user_newpass_time.sql' ],
 109                         [ 'addTable', 'redirect', 'patch-redirect.sql' ],
 110                         [ 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ],
 111                         [ 'addField', 'ipblocks', 'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ],
 112                         [ 'doBacklinkingIndicesUpdate' ],
 113                         [ 'addField', 'recentchanges', 'rc_old_len', 'patch-rc_len.sql' ],
 114                         [ 'addField', 'user', 'user_editcount', 'patch-user_editcount.sql' ],
 115
 116                         // 1.10
 117                         [ 'doRestrictionsUpdate' ],
 118                         [ 'addField', 'logging', 'log_id', 'patch-log_id.sql' ],
 119                         [ 'addField', 'revision', 'rev_parent_id', 'patch-rev_parent_id.sql' ],
 120                         [ 'addField', 'page_restrictions', 'pr_id', 'patch-page_restrictions_sortkey.sql' ],
 121                         [ 'addField', 'revision', 'rev_len', 'patch-rev_len.sql' ],
 122                         [ 'addField', 'recentchanges', 'rc_deleted', 'patch-rc_deleted.sql' ],
 123                         [ 'addField', 'logging', 'log_deleted', 'patch-log_deleted.sql' ],
 124                         [ 'addField', 'archive', 'ar_deleted', 'patch-ar_deleted.sql' ],
 125                         [ 'addField', 'ipblocks', 'ipb_deleted', 'patch-ipb_deleted.sql' ],
 126                         [ 'addField', 'filearchive', 'fa_deleted', 'patch-fa_deleted.sql' ],
 127                         [ 'addField', 'archive', 'ar_len', 'patch-ar_len.sql' ],
 128
 129                         // 1.11
 130                         [ 'addField', 'ipblocks', 'ipb_block_email', 'patch-ipb_emailban.sql' ],
 131                         [ 'doCategorylinksIndicesUpdate' ],
 132                         [ 'addField', 'oldimage', 'oi_metadata', 'patch-oi_metadata.sql' ],
 133                         [ 'addIndex', 'archive', 'usertext_timestamp', 'patch-archive-user-index.sql' ],
 134                         [ 'addIndex', 'image', 'img_usertext_timestamp', 'patch-image-user-index.sql' ],
 135                         [ 'addIndex', 'oldimage', 'oi_usertext_timestamp', 'patch-oldimage-user-index.sql' ],
 136                         [ 'addField', 'archive', 'ar_page_id', 'patch-archive-page_id.sql' ],
 137                         [ 'addField', 'image', 'img_sha1', 'patch-img_sha1.sql' ],
 138
 139                         // 1.12
 140                         [ 'addTable', 'protected_titles', 'patch-protected_titles.sql' ],
 141
 142                         // 1.13
 143                         [ 'addField', 'ipblocks', 'ipb_by_text', 'patch-ipb_by_text.sql' ],
 144                         [ 'addTable', 'page_props', 'patch-page_props.sql' ],
 145                         [ 'addTable', 'updatelog', 'patch-updatelog.sql' ],
 146                         [ 'addTable', 'category', 'patch-category.sql' ],
 147                         [ 'doCategoryPopulation' ],
 148                         [ 'addField', 'archive', 'ar_parent_id', 'patch-ar_parent_id.sql' ],
 149                         [ 'addField', 'user_newtalk', 'user_last_timestamp', 'patch-user_last_timestamp.sql' ],
 150                         [ 'doPopulateParentId' ],
 151                         [ 'checkBin', 'protected_titles', 'pt_title', 'patch-pt_title-encoding.sql', ],
 152                         [ 'doMaybeProfilingMemoryUpdate' ],
 153                         [ 'doFilearchiveIndicesUpdate' ],
 154
 155                         // 1.14
 156                         [ 'addField', 'site_stats', 'ss_active_users', 'patch-ss_active_users.sql' ],
 157                         [ 'doActiveUsersInit' ],
 158                         [ 'addField', 'ipblocks', 'ipb_allow_usertalk', 'patch-ipb_allow_usertalk.sql' ],
 159
 160                         // 1.15
 161                         [ 'addTable', 'change_tag', 'patch-change_tag.sql' ],
 162                         [ 'addTable', 'tag_summary', 'patch-tag_summary.sql' ],
 163                         [ 'addTable', 'valid_tag', 'patch-valid_tag.sql' ],
 164
 165                         // 1.16
 166                         [ 'addTable', 'user_properties', 'patch-user_properties.sql' ],
 167                         [ 'addTable', 'log_search', 'patch-log_search.sql' ],
 168                         [ 'addField', 'logging', 'log_user_text', 'patch-log_user_text.sql' ],
 169                         # listed separately from the previous update because 1.16 was released without this update
 170                         [ 'doLogUsertextPopulation' ],
 171                         [ 'doLogSearchPopulation' ],
 172                         [ 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ],
 173                         [ 'addIndex', 'change_tag', 'change_tag_rc_tag', 'patch-change_tag-indexes.sql' ],
 174                         [ 'addField', 'redirect', 'rd_interwiki', 'patch-rd_interwiki.sql' ],
 175                         [ 'doUpdateTranscacheField' ],
 176                         [ 'doUpdateMimeMinorField' ],
 177
 178                         // 1.17
 179                         [ 'addTable', 'iwlinks', 'patch-iwlinks.sql' ],
 180                         [ 'addIndex', 'iwlinks', 'iwl_prefix_title_from', 'patch-rename-iwl_prefix.sql' ],
 181                         [ 'addField', 'updatelog', 'ul_value', 'patch-ul_value.sql' ],
 182                         [ 'addField', 'interwiki', 'iw_api', 'patch-iw_api_and_wikiid.sql' ],
 183                         [ 'dropIndex', 'iwlinks', 'iwl_prefix', 'patch-kill-iwl_prefix.sql' ],
 184                         [ 'addField', 'categorylinks', 'cl_collation', 'patch-categorylinks-better-collation.sql' ],
 185                         [ 'doClFieldsUpdate' ],
 186                         [ 'addTable', 'module_deps', 'patch-module_deps.sql' ],
 187                         [ 'dropIndex', 'archive', 'ar_page_revid', 'patch-archive_kill_ar_page_revid.sql' ],
 188                         [ 'addIndex', 'archive', 'ar_revid', 'patch-archive_ar_revid.sql' ],
 189                         [ 'doLangLinksLengthUpdate' ],
 190
 191                         // 1.18
 192                         [ 'doUserNewTalkTimestampNotNull' ],
 193                         [ 'addIndex', 'user', 'user_email', 'patch-user_email_index.sql' ],
 194                         [ 'modifyField', 'user_properties', 'up_property', 'patch-up_property.sql' ],
 195                         [ 'addTable', 'uploadstash', 'patch-uploadstash.sql' ],
 196                         [ 'addTable', 'user_former_groups', 'patch-user_former_groups.sql' ],
 197
 198                         // 1.19
 199                         [ 'addIndex', 'logging', 'type_action', 'patch-logging-type-action-index.sql' ],
 200                         [ 'addField', 'revision', 'rev_sha1', 'patch-rev_sha1.sql' ],
 201                         [ 'doMigrateUserOptions' ],
 202                         [ 'dropField', 'user', 'user_options', 'patch-drop-user_options.sql' ],
 203                         [ 'addField', 'archive', 'ar_sha1', 'patch-ar_sha1.sql' ],
 204                         [ 'addIndex', 'page', 'page_redirect_namespace_len',
 205                                 'patch-page_redirect_namespace_len.sql' ],
 206                         [ 'addField', 'uploadstash', 'us_chunk_inx', 'patch-uploadstash_chunk.sql' ],
 207                         [ 'addfield', 'job', 'job_timestamp', 'patch-jobs-add-timestamp.sql' ],
 208
 209                         // 1.20
 210                         [ 'addIndex', 'revision', 'page_user_timestamp', 'patch-revision-user-page-index.sql' ],
 211                         [ 'addField', 'ipblocks', 'ipb_parent_block_id', 'patch-ipb-parent-block-id.sql' ],
 212                         [ 'addIndex', 'ipblocks', 'ipb_parent_block_id', 'patch-ipb-parent-block-id-index.sql' ],
 213                         [ 'dropField', 'category', 'cat_hidden', 'patch-cat_hidden.sql' ],
 214
 215                         // 1.21
 216                         [ 'addField', 'revision', 'rev_content_format', 'patch-revision-rev_content_format.sql' ],
 217                         [ 'addField', 'revision', 'rev_content_model', 'patch-revision-rev_content_model.sql' ],
 218                         [ 'addField', 'archive', 'ar_content_format', 'patch-archive-ar_content_format.sql' ],
 219                         [ 'addField', 'archive', 'ar_content_model', 'patch-archive-ar_content_model.sql' ],
 220                         [ 'addField', 'page', 'page_content_model', 'patch-page-page_content_model.sql' ],
 221                         [ 'enableContentHandlerUseDB' ],
 222                         [ 'dropField', 'site_stats', 'ss_admins', 'patch-drop-ss_admins.sql' ],
 223                         [ 'dropField', 'recentchanges', 'rc_moved_to_title', 'patch-rc_moved.sql' ],
 224                         [ 'addTable', 'sites', 'patch-sites.sql' ],
 225                         [ 'addField', 'filearchive', 'fa_sha1', 'patch-fa_sha1.sql' ],
 226                         [ 'addField', 'job', 'job_token', 'patch-job_token.sql' ],
 227                         [ 'addField', 'job', 'job_attempts', 'patch-job_attempts.sql' ],
 228                         [ 'doEnableProfiling' ],
 229                         [ 'addField', 'uploadstash', 'us_props', 'patch-uploadstash-us_props.sql' ],
 230                         [ 'modifyField', 'user_groups', 'ug_group', 'patch-ug_group-length-increase-255.sql' ],
 231                         [ 'modifyField', 'user_former_groups', 'ufg_group',
 232                                 'patch-ufg_group-length-increase-255.sql' ],
 233                         [ 'addIndex', 'page_props', 'pp_propname_page',
 234                                 'patch-page_props-propname-page-index.sql' ],
 235                         [ 'addIndex', 'image', 'img_media_mime', 'patch-img_media_mime-index.sql' ],
 236
 237                         // 1.22
 238                         [ 'doIwlinksIndexNonUnique' ],
 239                         [ 'addIndex', 'iwlinks', 'iwl_prefix_from_title',
 240                                 'patch-iwlinks-from-title-index.sql' ],
 241                         [ 'addField', 'archive', 'ar_id', 'patch-archive-ar_id.sql' ],
 242                         [ 'addField', 'externallinks', 'el_id', 'patch-externallinks-el_id.sql' ],
 243
 244                         // 1.23
 245                         [ 'addField', 'recentchanges', 'rc_source', 'patch-rc_source.sql' ],
 246                         [ 'addIndex', 'logging', 'log_user_text_type_time',
 247                                 'patch-logging_user_text_type_time_index.sql' ],
 248                         [ 'addIndex', 'logging', 'log_user_text_time', 'patch-logging_user_text_time_index.sql' ],
 249                         [ 'addField', 'page', 'page_links_updated', 'patch-page_links_updated.sql' ],
 250                         [ 'addField', 'user', 'user_password_expires', 'patch-user_password_expire.sql' ],
 251
 252                         // 1.24
 253                         [ 'addField', 'page_props', 'pp_sortkey', 'patch-pp_sortkey.sql' ],
 254                         [ 'dropField', 'recentchanges', 'rc_cur_time', 'patch-drop-rc_cur_time.sql' ],
 255                         [ 'addIndex', 'watchlist', 'wl_user_notificationtimestamp',
 256                                 'patch-watchlist-user-notificationtimestamp-index.sql' ],
 257                         [ 'addField', 'page', 'page_lang', 'patch-page_lang.sql' ],
 258                         [ 'addField', 'pagelinks', 'pl_from_namespace', 'patch-pl_from_namespace.sql' ],
 259                         [ 'addField', 'templatelinks', 'tl_from_namespace', 'patch-tl_from_namespace.sql' ],
 260                         [ 'addField', 'imagelinks', 'il_from_namespace', 'patch-il_from_namespace.sql' ],
 261                         [ 'modifyField', 'image', 'img_major_mime',
 262                                 'patch-img_major_mime-chemical.sql' ],
 263                         [ 'modifyField', 'oldimage', 'oi_major_mime',
 264                                 'patch-oi_major_mime-chemical.sql' ],
 265                         [ 'modifyField', 'filearchive', 'fa_major_mime',
 266                                 'patch-fa_major_mime-chemical.sql' ],
 267
 268                         // 1.25
 269                         // note this patch covers other _comment and _description fields too
 270                         [ 'doExtendCommentLengths' ],
 271
 272                         // 1.26
 273                         [ 'dropTable', 'hitcounter' ],
 274                         [ 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ],
 275                         [ 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ],
 276
 277                         // 1.27
 278                         [ 'dropTable', 'msg_resource_links' ],
 279                         [ 'dropTable', 'msg_resource' ],
 280                         [ 'addTable', 'bot_passwords', 'patch-bot_passwords.sql' ],
 281                         [ 'addField', 'watchlist', 'wl_id', 'patch-watchlist-wl_id.sql' ],
 282                         [ 'dropIndex', 'categorylinks', 'cl_collation', 'patch-kill-cl_collation_index.sql' ],
 283                         [ 'addIndex', 'categorylinks', 'cl_collation_ext',
 284                                 'patch-add-cl_collation_ext_index.sql' ],
 285                         [ 'doCollationUpdate' ],
 286
 287                         // 1.28
 288                         [ 'addIndex', 'recentchanges', 'rc_name_type_patrolled_timestamp',
 289                                 'patch-add-rc_name_type_patrolled_timestamp_index.sql' ],
 290                         [ 'doRevisionPageRevIndexNonUnique' ],
 291                         [ 'doNonUniquePlTlIl' ],
 292                         [ 'addField', 'change_tag', 'ct_id', 'patch-change_tag-ct_id.sql' ],
 293                         [ 'addField', 'tag_summary', 'ts_id', 'patch-tag_summary-ts_id.sql' ],
 294                         [ 'modifyField', 'recentchanges', 'rc_ip', 'patch-rc_ip_modify.sql' ],
 295                         [ 'addIndex', 'archive', 'usertext_timestamp', 'patch-rename-ar_usertext_timestamp.sql' ],
 296
 297                         // 1.29
 298                         [ 'addField', 'externallinks', 'el_index_60', 'patch-externallinks-el_index_60.sql' ],
 299                         [ 'dropIndex', 'user_groups', 'ug_user_group', 'patch-user_groups-primary-key.sql' ],
 300                         [ 'addField', 'user_groups', 'ug_expiry', 'patch-user_groups-ug_expiry.sql' ],
 301                         [ 'addIndex', 'image', 'img_user_timestamp', 'patch-image-user-index-2.sql' ],
 302
 303                         // 1.30
 304                         [ 'modifyField', 'image', 'img_media_type', 'patch-add-3d.sql' ],
 305                         [ 'addTable', 'ip_changes', 'patch-ip_changes.sql' ],
 306                         [ 'renameIndex', 'categorylinks', 'cl_from', 'PRIMARY', false,
 307                                 'patch-categorylinks-fix-pk.sql' ],
 308                         [ 'renameIndex', 'templatelinks', 'tl_from', 'PRIMARY', false,
 309                                 'patch-templatelinks-fix-pk.sql' ],
 310                         [ 'renameIndex', 'pagelinks', 'pl_from', 'PRIMARY', false, 'patch-pagelinks-fix-pk.sql' ],
 311                         [ 'renameIndex', 'text', 'old_id', 'PRIMARY', false, 'patch-text-fix-pk.sql' ],
 312                         [ 'renameIndex', 'imagelinks', 'il_from', 'PRIMARY', false, 'patch-imagelinks-fix-pk.sql' ],
 313                         [ 'renameIndex', 'iwlinks', 'iwl_from', 'PRIMARY', false, 'patch-iwlinks-fix-pk.sql' ],
 314                         [ 'renameIndex', 'langlinks', 'll_from', 'PRIMARY', false, 'patch-langlinks-fix-pk.sql' ],
 315                         [ 'renameIndex', 'log_search', 'ls_field_val', 'PRIMARY', false, 'patch-log_search-fix-pk.sql' ],
 316                         [ 'renameIndex', 'module_deps', 'md_module_skin', 'PRIMARY', false,
 317                                 'patch-module_deps-fix-pk.sql' ],
 318                         [ 'renameIndex', 'objectcache', 'keyname', 'PRIMARY', false, 'patch-objectcache-fix-pk.sql' ],
 319                         [ 'renameIndex', 'querycache_info', 'qci_type', 'PRIMARY', false,
 320                                 'patch-querycache_info-fix-pk.sql' ],
 321                         [ 'renameIndex', 'site_stats', 'ss_row_id', 'PRIMARY', false, 'patch-site_stats-fix-pk.sql' ],
 322                         [ 'renameIndex', 'transcache', 'tc_url_idx', 'PRIMARY', false, 'patch-transcache-fix-pk.sql' ],
 323                         [ 'renameIndex', 'user_former_groups', 'ufg_user_group', 'PRIMARY', false,
 324                                 'patch-user_former_groups-fix-pk.sql' ],
 325                         [ 'renameIndex', 'user_properties', 'user_properties_user_property', 'PRIMARY', false,
 326                                 'patch-user_properties-fix-pk.sql' ],
 327                         [ 'addTable', 'comment', 'patch-comment-table.sql' ],
 328
 329                         // This field was added in 1.31, but is put here so it can be used by 'migrateComments'
 330                         [ 'addField', 'image', 'img_description_id', 'patch-image-img_description_id.sql' ],
 331
 332                         [ 'migrateComments' ],
 333                         [ 'renameIndex', 'l10n_cache', 'lc_lang_key', 'PRIMARY', false,
 334                                 'patch-l10n_cache-primary-key.sql' ],
 335                         [ 'doUnsignedSyncronisation' ],
 336
 337                         // 1.31
 338                         [ 'addTable', 'slots', 'patch-slots.sql' ],
 339                         [ 'addField', 'slots', 'slot_origin', 'patch-slot-origin.sql' ],
 340                         [ 'addTable', 'content', 'patch-content.sql' ],
 341                         [ 'addTable', 'slot_roles', 'patch-slot_roles.sql' ],
 342                         [ 'addTable', 'content_models', 'patch-content_models.sql' ],
 343                         [ 'migrateArchiveText' ],
 344                         [ 'addTable', 'actor', 'patch-actor-table.sql' ],
 345                         [ 'migrateActors' ],
 346                         [ 'modifyField', 'revision', 'rev_text_id', 'patch-rev_text_id-default.sql' ],
 347                         [ 'modifyTable', 'site_stats', 'patch-site_stats-modify.sql' ],
 348                         [ 'populateArchiveRevId' ],
 349                         [ 'addIndex', 'recentchanges', 'rc_namespace_title_timestamp',
 350                                 'patch-recentchanges-nttindex.sql' ],
 351
 352                         // 1.32
 353                         [ 'addTable', 'change_tag_def', 'patch-change_tag_def.sql' ],
 354                         [ 'populateExternallinksIndex60' ],
 355                         [ 'modifyfield', 'externallinks', 'el_index_60',
 356                                 'patch-externallinks-el_index_60-drop-default.sql' ],
 357                         [ 'runMaintenance', DeduplicateArchiveRevId::class, 'maintenance/deduplicateArchiveRevId.php' ],
 358                 ];
 359         }
 360
 361         /**
 362          * 1.4 betas were missing the 'binary' marker from logging.log_title,
 363          * which causes a collation mismatch error on joins in MySQL 4.1.
 364          *
 365          * @param string $table Table name
 366          * @param string $field Field name to check
 367          * @param string $patchFile Path to the patch to correct the field
 368          * @return bool
 369          */
 370         protected function checkBin( $table, $field, $patchFile ) {
 371                 if ( !$this->doTable( $table ) ) {
 372                         return true;
 373                 }
 374
 375                 /** @var MySQLField $fieldInfo */
 376                 $fieldInfo = $this->db->fieldInfo( $table, $field );
 377                 if ( $fieldInfo->isBinary() ) {
 378                         $this->output( "...$table table has correct $field encoding.\n" );
 379                 } else {
 380                         $this->applyPatch( $patchFile, false, "Fixing $field encoding on $table table" );
 381                 }
 382         }
 383
 384         /**
 385          * Check whether an index contain a field
 386          *
 387          * @param string $table Table name
 388          * @param string $index Index name to check
 389          * @param string $field Field that should be in the index
 390          * @return bool
 391          */
 392         protected function indexHasField( $table, $index, $field ) {
 393                 if ( !$this->doTable( $table ) ) {
 394                         return true;
 395                 }
 396
 397                 $info = $this->db->indexInfo( $table, $index, __METHOD__ );
 398                 if ( $info ) {
 399                         foreach ( $info as $row ) {
 400                                 if ( $row->Column_name == $field ) {
 401                                         $this->output( "...index $index on table $table includes field $field.\n" );
 402
 403                                         return true;
 404                                 }
 405                         }
 406                 }
 407                 $this->output( "...index $index on table $table has no field $field; added.\n" );
 408
 409                 return false;
 410         }
 411
 412         /**
 413          * Check that interwiki table exists; if it doesn't source it
 414          */
 415         protected function doInterwikiUpdate() {
 416                 global $IP;
 417
 418                 if ( !$this->doTable( 'interwiki' ) ) {
 419                         return;
 420                 }
 421
 422                 if ( $this->db->tableExists( "interwiki", __METHOD__ ) ) {
 423                         $this->output( "...already have interwiki table\n" );
 424
 425                         return;
 426                 }
 427
 428                 $this->applyPatch( 'patch-interwiki.sql', false, 'Creating interwiki table' );
 429                 $this->applyPatch(
 430                         "$IP/maintenance/interwiki.sql",
 431                         true,
 432                         'Adding default interwiki definitions'
 433                 );
 434         }
 435
 436         /**
 437          * Check that proper indexes are in place
 438          */
 439         protected function doIndexUpdate() {
 440                 $meta = $this->db->fieldInfo( 'recentchanges', 'rc_timestamp' );
 441                 if ( $meta === false ) {
 442                         throw new MWException( 'Missing rc_timestamp field of recentchanges table. Should not happen.' );
 443                 }
 444                 if ( $meta->isMultipleKey() ) {
 445                         $this->output( "...indexes seem up to 20031107 standards.\n" );
 446
 447                         return;
 448                 }
 449
 450                 $this->applyPatch( 'patch-indexes.sql', true, "Updating indexes to 20031107" );
 451         }
 452
 453         protected function doOldLinksUpdate() {
 454                 $cl = $this->maintenance->runChild( ConvertLinks::class );
 455                 $cl->execute();
 456         }
 457
 458         protected function doFixAncientImagelinks() {
 459                 $info = $this->db->fieldInfo( 'imagelinks', 'il_from' );
 460                 if ( !$info || $info->type() !== 'string' ) {
 461                         $this->output( "...il_from OK\n" );
 462
 463                         return;
 464                 }
 465
 466                 $applied = $this->applyPatch(
 467                         'patch-fix-il_from.sql',
 468                         false,
 469                         'Fixing ancient broken imagelinks table.'
 470                 );
 471
 472                 if ( $applied ) {
 473                         $this->output( "NOTE: you will have to run maintenance/refreshLinks.php after this." );
 474                 }
 475         }
 476
 477         /**
 478          * Check if we need to add talk page rows to the watchlist
 479          */
 480         function doWatchlistUpdate() {
 481                 $talk = $this->db->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', __METHOD__ );
 482                 $nontalk = $this->db->selectField(
 483                         'watchlist',
 484                         'count(*)',
 485                         'NOT (wl_namespace & 1)',
 486                         __METHOD__
 487                 );
 488                 if ( $talk == $nontalk ) {
 489                         $this->output( "...watchlist talk page rows already present.\n" );
 490
 491                         return;
 492                 }
 493
 494                 $insertOpts = [ 'IGNORE' ];
 495                 $selectOpts = [];
 496
 497                 // If wl_id exists, make insertSelect() more replication-safe by
 498                 // ordering on that column. If not, hint that it should be safe anyway.
 499                 if ( $this->db->fieldExists( 'watchlist', 'wl_id', __METHOD__ ) ) {
 500                         $selectOpts['ORDER BY'] = 'wl_id';
 501                 } else {
 502                         $insertOpts[] = 'NO_AUTO_COLUMNS';
 503                 }
 504
 505                 $this->output( "Adding missing watchlist talk page rows... " );
 506                 $this->db->insertSelect( 'watchlist', 'watchlist',
 507                         [
 508                                 'wl_user' => 'wl_user',
 509                                 'wl_namespace' => 'wl_namespace | 1',
 510                                 'wl_title' => 'wl_title',
 511                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 512                         ], [ 'NOT (wl_namespace & 1)' ], __METHOD__, $insertOpts, $selectOpts );
 513                 $this->output( "done.\n" );
 514
 515                 $this->output( "Adding missing watchlist subject page rows... " );
 516                 $this->db->insertSelect( 'watchlist', 'watchlist',
 517                         [
 518                                 'wl_user' => 'wl_user',
 519                                 'wl_namespace' => 'wl_namespace & ~1',
 520                                 'wl_title' => 'wl_title',
 521                                 'wl_notificationtimestamp' => 'wl_notificationtimestamp'
 522                         ], [ 'wl_namespace & 1' ], __METHOD__, $insertOpts, $selectOpts );
 523                 $this->output( "done.\n" );
 524         }
 525
 526         function doSchemaRestructuring() {
 527                 if ( $this->db->tableExists( 'page', __METHOD__ ) ) {
 528                         $this->output( "...page table already exists.\n" );
 529
 530                         return;
 531                 }
 532
 533                 $this->output( "...converting from cur/old to page/revision/text DB structure.\n" );
 534                 $this->output( wfTimestamp( TS_DB ) );
 535                 $this->output( "......checking for duplicate entries.\n" );
 536
 537                 list( $cur, $old, $page, $revision, $text ) = $this->db->tableNamesN(
 538                         'cur',
 539                         'old',
 540                         'page',
 541                         'revision',
 542                         'text'
 543                 );
 544
 545                 $rows = $this->db->query( "
 546                         SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
 547                         FROM $cur
 548                         GROUP BY cur_title, cur_namespace
 549                         HAVING c>1",
 550                         __METHOD__
 551                 );
 552
 553                 if ( $rows->numRows() > 0 ) {
 554                         $this->output( wfTimestamp( TS_DB ) );
 555                         $this->output( "......<b>Found duplicate entries</b>\n" );
 556                         $this->output( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
 557                         $duplicate = [];
 558                         foreach ( $rows as $row ) {
 559                                 if ( !isset( $duplicate[$row->cur_namespace] ) ) {
 560                                         $duplicate[$row->cur_namespace] = [];
 561                                 }
 562
 563                                 $duplicate[$row->cur_namespace][] = $row->cur_title;
 564                                 $this->output( sprintf(
 565                                         "      %-60s %3s %5s\n",
 566                                         $row->cur_title, $row->cur_namespace,
 567                                         $row->c
 568                                 ) );
 569                         }
 570                         $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
 571                         $dupeTitles = [];
 572                         foreach ( $duplicate as $ns => $titles ) {
 573                                 $dupeTitles[] = "( cur_namespace = {$ns} AND cur_title in ("
 574                                         . $this->db->makeList( $titles ) . ") ) \n";
 575                         }
 576                         $sql .= $this->db->makeList( $dupeTitles, IDatabase::LIST_OR );
 577                         # By sorting descending, the most recent entry will be the first in the list.
 578                         # All following entries will be deleted by the next while-loop.
 579                         $sql .= 'ORDER BY cur_namespace, cur_title, cur_timestamp DESC';
 580
 581                         $rows = $this->db->query( $sql, __METHOD__ );
 582
 583                         $prev_title = $prev_namespace = false;
 584                         $deleteId = [];
 585
 586                         foreach ( $rows as $row ) {
 587                                 if ( $prev_title == $row->cur_title && $prev_namespace == $row->cur_namespace ) {
 588                                         $deleteId[] = $row->cur_id;
 589                                 }
 590                                 $prev_title = $row->cur_title;
 591                                 $prev_namespace = $row->cur_namespace;
 592                         }
 593                         $sql = "DELETE FROM $cur WHERE cur_id IN ( " . implode( ',', $deleteId ) . ')';
 594                         $this->db->query( $sql, __METHOD__ );
 595                         $this->output( wfTimestamp( TS_DB ) );
 596                         $this->output( "......<b>Deleted</b> " . $this->db->affectedRows() . " records.\n" );
 597                 }
 598
 599                 $this->output( wfTimestamp( TS_DB ) );
 600                 $this->output( "......Creating tables.\n" );
 601                 $this->db->query( "CREATE TABLE $page (
 602                         page_id int(8) unsigned NOT NULL auto_increment,
 603                         page_namespace int NOT NULL,
 604                         page_title varchar(255) binary NOT NULL,
 605                         page_restrictions tinyblob NOT NULL,
 606                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 607                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 608                         page_random real unsigned NOT NULL,
 609                         page_touched char(14) binary NOT NULL default '',
 610                         page_latest int(8) unsigned NOT NULL,
 611                         page_len int(8) unsigned NOT NULL,
 612
 613                         PRIMARY KEY page_id (page_id),
 614                         UNIQUE INDEX name_title (page_namespace,page_title),
 615                         INDEX (page_random),
 616                         INDEX (page_len)
 617                         ) ENGINE=InnoDB", __METHOD__ );
 618                 $this->db->query( "CREATE TABLE $revision (
 619                         rev_id int(8) unsigned NOT NULL auto_increment,
 620                         rev_page int(8) unsigned NOT NULL,
 621                         rev_comment tinyblob NOT NULL,
 622                         rev_user int(5) unsigned NOT NULL default '0',
 623                         rev_user_text varchar(255) binary NOT NULL default '',
 624                         rev_timestamp char(14) binary NOT NULL default '',
 625                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 626                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 627                         rev_len int(8) unsigned,
 628                         rev_parent_id int(8) unsigned default NULL,
 629                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 630                         UNIQUE INDEX rev_id (rev_id),
 631                         INDEX rev_timestamp (rev_timestamp),
 632                         INDEX page_timestamp (rev_page,rev_timestamp),
 633                         INDEX user_timestamp (rev_user,rev_timestamp),
 634                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 635                         ) ENGINE=InnoDB", __METHOD__ );
 636
 637                 $this->output( wfTimestamp( TS_DB ) );
 638                 $this->output( "......Locking tables.\n" );
 639                 $this->db->query(
 640                         "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE",
 641                         __METHOD__
 642                 );
 643
 644                 $maxold = intval( $this->db->selectField( 'old', 'max(old_id)', '', __METHOD__ ) );
 645                 $this->output( wfTimestamp( TS_DB ) );
 646                 $this->output( "......maxold is {$maxold}\n" );
 647
 648                 $this->output( wfTimestamp( TS_DB ) );
 649                 global $wgLegacySchemaConversion;
 650                 if ( $wgLegacySchemaConversion ) {
 651                         // Create HistoryBlobCurStub entries.
 652                         // Text will be pulled from the leftover 'cur' table at runtime.
 653                         $this->output( "......Moving metadata from cur; using blob references to text in cur table.\n" );
 654                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 655                         $cur_flags = "'object'";
 656                 } else {
 657                         // Copy all cur text in immediately: this may take longer but avoids
 658                         // having to keep an extra table around.
 659                         $this->output( "......Moving text from cur.\n" );
 660                         $cur_text = 'cur_text';
 661                         $cur_flags = "''";
 662                 }
 663                 $this->db->query(
 664                         "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user,
 665                                 old_user_text, old_timestamp, old_minor_edit, old_flags)
 666                         SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text,
 667                                 cur_timestamp, cur_minor_edit, $cur_flags
 668                         FROM $cur",
 669                         __METHOD__
 670                 );
 671
 672                 $this->output( wfTimestamp( TS_DB ) );
 673                 $this->output( "......Setting up revision table.\n" );
 674                 $this->db->query(
 675                         "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user,
 676                                 rev_user_text, rev_timestamp, rev_minor_edit)
 677                         SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 678                                 old_timestamp, old_minor_edit
 679                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title",
 680                         __METHOD__
 681                 );
 682
 683                 $this->output( wfTimestamp( TS_DB ) );
 684                 $this->output( "......Setting up page table.\n" );
 685                 $this->db->query(
 686                         "INSERT INTO $page (page_id, page_namespace, page_title,
 687                                 page_restrictions, page_is_redirect, page_is_new, page_random,
 688                                 page_touched, page_latest, page_len)
 689                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions,
 690                                 cur_is_redirect, cur_is_new, cur_random, cur_touched, rev_id, LENGTH(cur_text)
 691                         FROM $cur,$revision
 692                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}",
 693                         __METHOD__
 694                 );
 695
 696                 $this->output( wfTimestamp( TS_DB ) );
 697                 $this->output( "......Unlocking tables.\n" );
 698                 $this->db->query( "UNLOCK TABLES", __METHOD__ );
 699
 700                 $this->output( wfTimestamp( TS_DB ) );
 701                 $this->output( "......Renaming old.\n" );
 702                 $this->db->query( "ALTER TABLE $old RENAME TO $text", __METHOD__ );
 703
 704                 $this->output( wfTimestamp( TS_DB ) );
 705                 $this->output( "...done.\n" );
 706         }
 707
 708         protected function doNamespaceSize() {
 709                 $tables = [
 710                         'page' => 'page',
 711                         'archive' => 'ar',
 712                         'recentchanges' => 'rc',
 713                         'watchlist' => 'wl',
 714                         'querycache' => 'qc',
 715                         'logging' => 'log',
 716                 ];
 717                 foreach ( $tables as $table => $prefix ) {
 718                         $field = $prefix . '_namespace';
 719
 720                         $tablename = $this->db->tableName( $table );
 721                         $result = $this->db->query( "SHOW COLUMNS FROM $tablename LIKE '$field'", __METHOD__ );
 722                         $info = $this->db->fetchObject( $result );
 723
 724                         if ( substr( $info->Type, 0, 3 ) == 'int' ) {
 725                                 $this->output( "...$field is already a full int ($info->Type).\n" );
 726                         } else {
 727                                 $this->output( "Promoting $field from $info->Type to int... " );
 728                                 $this->db->query( "ALTER TABLE $tablename MODIFY $field int NOT NULL", __METHOD__ );
 729                                 $this->output( "done.\n" );
 730                         }
 731                 }
 732         }
 733
 734         protected function doPagelinksUpdate() {
 735                 if ( $this->db->tableExists( 'pagelinks', __METHOD__ ) ) {
 736                         $this->output( "...already have pagelinks table.\n" );
 737
 738                         return;
 739                 }
 740
 741                 $this->applyPatch(
 742                         'patch-pagelinks.sql',
 743                         false,
 744                         'Converting links and brokenlinks tables to pagelinks'
 745                 );
 746
 747                 global $wgContLang;
 748                 foreach ( $wgContLang->getNamespaces() as $ns => $name ) {
 749                         if ( $ns == 0 ) {
 750                                 continue;
 751                         }
 752
 753                         $this->output( "Cleaning up broken links for namespace $ns... " );
 754                         $this->db->update( 'pagelinks',
 755                                 [
 756                                         'pl_namespace' => $ns,
 757                                         "pl_title = TRIM(LEADING {$this->db->addQuotes( "$name:" )} FROM pl_title)",
 758                                 ],
 759                                 [
 760                                         'pl_namespace' => 0,
 761                                         'pl_title' . $this->db->buildLike( "$name:", $this->db->anyString() ),
 762                                 ],
 763                                 __METHOD__
 764                         );
 765                         $this->output( "done.\n" );
 766                 }
 767         }
 768
 769         protected function doUserUniqueUpdate() {
 770                 if ( !$this->doTable( 'user' ) ) {
 771                         return true;
 772                 }
 773
 774                 $duper = new UserDupes( $this->db, [ $this, 'output' ] );
 775                 if ( $duper->hasUniqueIndex() ) {
 776                         $this->output( "...already have unique user_name index.\n" );
 777
 778                         return;
 779                 }
 780
 781                 if ( !$duper->clearDupes() ) {
 782                         $this->output( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
 783                 }
 784                 $this->applyPatch( 'patch-user_nameindex.sql', false, "Adding unique index on user_name" );
 785         }
 786
 787         protected function doUserGroupsUpdate() {
 788                 if ( !$this->doTable( 'user_groups' ) ) {
 789                         return true;
 790                 }
 791
 792                 if ( $this->db->tableExists( 'user_groups', __METHOD__ ) ) {
 793                         $info = $this->db->fieldInfo( 'user_groups', 'ug_group' );
 794                         if ( $info->type() == 'int' ) {
 795                                 $oldug = $this->db->tableName( 'user_groups' );
 796                                 $newug = $this->db->tableName( 'user_groups_bogus' );
 797                                 $this->output( "user_groups table exists but is in bogus intermediate " .
 798                                         "format. Renaming to $newug... " );
 799                                 $this->db->query( "ALTER TABLE $oldug RENAME TO $newug", __METHOD__ );
 800                                 $this->output( "done.\n" );
 801
 802                                 $this->applyPatch( 'patch-user_groups.sql', false, "Re-adding fresh user_groups table" );
 803
 804                                 $this->output( "***\n" );
 805                                 $this->output( "*** WARNING: You will need to manually fix up user " .
 806                                         "permissions in the user_groups\n" );
 807                                 $this->output( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
 808                                 $this->output( "***\n" );
 809                         } else {
 810                                 $this->output( "...user_groups table exists and is in current format.\n" );
 811                         }
 812
 813                         return;
 814                 }
 815
 816                 $this->applyPatch( 'patch-user_groups.sql', false, "Adding user_groups table" );
 817
 818                 if ( !$this->db->tableExists( 'user_rights', __METHOD__ ) ) {
 819                         if ( $this->db->fieldExists( 'user', 'user_rights', __METHOD__ ) ) {
 820                                 $this->applyPatch(
 821                                         'patch-user_rights.sql',
 822                                         false,
 823                                         'Upgrading from a 1.3 or older database? Breaking out user_rights for conversion'
 824                                 );
 825                         } else {
 826                                 $this->output( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
 827                                 $this->output( "*** You may need to manually configure some sysops by manipulating\n" );
 828                                 $this->output( "*** the user_groups table.\n" );
 829
 830                                 return;
 831                         }
 832                 }
 833
 834                 $this->output( "Converting user_rights table to user_groups... " );
 835                 $result = $this->db->select( 'user_rights',
 836                         [ 'ur_user', 'ur_rights' ],
 837                         [ "ur_rights != ''" ],
 838                         __METHOD__ );
 839
 840                 foreach ( $result as $row ) {
 841                         $groups = array_unique(
 842                                 array_map( 'trim',
 843                                         explode( ',', $row->ur_rights ) ) );
 844
 845                         foreach ( $groups as $group ) {
 846                                 $this->db->insert( 'user_groups',
 847                                         [
 848                                                 'ug_user' => $row->ur_user,
 849                                                 'ug_group' => $group ],
 850                                         __METHOD__ );
 851                         }
 852                 }
 853                 $this->output( "done.\n" );
 854         }
 855
 856         /**
 857          * Make sure wl_notificationtimestamp can be NULL,
 858          * and update old broken items.
 859          */
 860         protected function doWatchlistNull() {
 861                 $info = $this->db->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 862                 if ( !$info ) {
 863                         return;
 864                 }
 865                 if ( $info->isNullable() ) {
 866                         $this->output( "...wl_notificationtimestamp is already nullable.\n" );
 867
 868                         return;
 869                 }
 870
 871                 $this->applyPatch(
 872                         'patch-watchlist-null.sql',
 873                         false,
 874                         'Making wl_notificationtimestamp nullable'
 875                 );
 876         }
 877
 878         /**
 879          * Set page_random field to a random value where it is equals to 0.
 880          *
 881          * @see T5946
 882          */
 883         protected function doPageRandomUpdate() {
 884                 $page = $this->db->tableName( 'page' );
 885                 $this->db->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", __METHOD__ );
 886                 $rows = $this->db->affectedRows();
 887
 888                 if ( $rows ) {
 889                         $this->output( "Set page_random to a random value on $rows rows where it was set to 0\n" );
 890                 } else {
 891                         $this->output( "...no page_random rows needed to be set\n" );
 892                 }
 893         }
 894
 895         protected function doTemplatelinksUpdate() {
 896                 if ( $this->db->tableExists( 'templatelinks', __METHOD__ ) ) {
 897                         $this->output( "...templatelinks table already exists\n" );
 898
 899                         return;
 900                 }
 901
 902                 $this->applyPatch( 'patch-templatelinks.sql', false, "Creating templatelinks table" );
 903
 904                 $this->output( "Populating...\n" );
 905                 $services = MediaWikiServices::getInstance();
 906                 if ( $services->getDBLoadBalancer()->getServerCount() > 1 ) {
 907                         // Slow, replication-friendly update
 908                         $res = $this->db->select( 'pagelinks', [ 'pl_from', 'pl_namespace', 'pl_title' ],
 909                                 [ 'pl_namespace' => NS_TEMPLATE ], __METHOD__ );
 910                         $count = 0;
 911                         foreach ( $res as $row ) {
 912                                 $count = ( $count + 1 ) % 100;
 913                                 if ( $count == 0 ) {
 914                                         $lbFactory = $services->getDBLoadBalancerFactory();
 915                                         $lbFactory->waitForReplication( [ 'wiki' => wfWikiID() ] );
 916                                 }
 917                                 $this->db->insert( 'templatelinks',
 918                                         [
 919                                                 'tl_from' => $row->pl_from,
 920                                                 'tl_namespace' => $row->pl_namespace,
 921                                                 'tl_title' => $row->pl_title,
 922                                         ], __METHOD__
 923                                 );
 924                         }
 925                 } else {
 926                         // Fast update
 927                         $this->db->insertSelect( 'templatelinks', 'pagelinks',
 928                                 [
 929                                         'tl_from' => 'pl_from',
 930                                         'tl_namespace' => 'pl_namespace',
 931                                         'tl_title' => 'pl_title'
 932                                 ], [
 933                                         'pl_namespace' => 10
 934                                 ], __METHOD__,
 935                                 [ 'NO_AUTO_COLUMNS' ] // There's no "tl_id" auto-increment field
 936                         );
 937                 }
 938                 $this->output( "Done. Please run maintenance/refreshLinks.php for a more " .
 939                         "thorough templatelinks update.\n" );
 940         }
 941
 942         protected function doBacklinkingIndicesUpdate() {
 943                 if ( !$this->indexHasField( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
 944                         !$this->indexHasField( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
 945                         !$this->indexHasField( 'imagelinks', 'il_to', 'il_from' )
 946                 ) {
 947                         $this->applyPatch( 'patch-backlinkindexes.sql', false, "Updating backlinking indices" );
 948                 }
 949         }
 950
 951         /**
 952          * Adding page_restrictions table, obsoleting page.page_restrictions.
 953          * Migrating old restrictions to new table
 954          * -- Andrew Garrett, January 2007.
 955          */
 956         protected function doRestrictionsUpdate() {
 957                 if ( $this->db->tableExists( 'page_restrictions', __METHOD__ ) ) {
 958                         $this->output( "...page_restrictions table already exists.\n" );
 959
 960                         return;
 961                 }
 962
 963                 $this->applyPatch(
 964                         'patch-page_restrictions.sql',
 965                         false,
 966                         'Creating page_restrictions table (1/2)'
 967                 );
 968                 $this->applyPatch(
 969                         'patch-page_restrictions_sortkey.sql',
 970                         false,
 971                         'Creating page_restrictions table (2/2)'
 972                 );
 973                 $this->output( "done.\n" );
 974
 975                 $this->output( "Migrating old restrictions to new table...\n" );
 976                 $task = $this->maintenance->runChild( UpdateRestrictions::class );
 977                 $task->execute();
 978         }
 979
 980         protected function doCategorylinksIndicesUpdate() {
 981                 if ( !$this->indexHasField( 'categorylinks', 'cl_sortkey', 'cl_from' ) ) {
 982                         $this->applyPatch( 'patch-categorylinksindex.sql', false, "Updating categorylinks Indices" );
 983                 }
 984         }
 985
 986         protected function doCategoryPopulation() {
 987                 if ( $this->updateRowExists( 'populate category' ) ) {
 988                         $this->output( "...category table already populated.\n" );
 989
 990                         return;
 991                 }
 992
 993                 $this->output(
 994                         "Populating category table, printing progress markers. " .
 995                         "For large databases, you\n" .
 996                         "may want to hit Ctrl-C and do this manually with maintenance/\n" .
 997                         "populateCategory.php.\n"
 998                 );
 999                 $task = $this->maintenance->runChild( PopulateCategory::class );
1000                 $task->execute();
1001                 $this->output( "Done populating category table.\n" );
1002         }
1003
1004         protected function doPopulateParentId() {
1005                 if ( !$this->updateRowExists( 'populate rev_parent_id' ) ) {
1006                         $this->output(
1007                                 "Populating rev_parent_id fields, printing progress markers. For large\n" .
1008                                 "databases, you may want to hit Ctrl-C and do this manually with\n" .
1009                                 "maintenance/populateParentId.php.\n" );
1010
1011                         $task = $this->maintenance->runChild( PopulateParentId::class );
1012                         $task->execute();
1013                 }
1014         }
1015
1016         protected function doMaybeProfilingMemoryUpdate() {
1017                 if ( !$this->doTable( 'profiling' ) ) {
1018                         return true;
1019                 }
1020
1021                 if ( !$this->db->tableExists( 'profiling', __METHOD__ ) ) {
1022                         return true;
1023                 } elseif ( $this->db->fieldExists( 'profiling', 'pf_memory', __METHOD__ ) ) {
1024                         $this->output( "...profiling table has pf_memory field.\n" );
1025
1026                         return true;
1027                 }
1028
1029                 return $this->applyPatch(
1030                         'patch-profiling-memory.sql',
1031                         false,
1032                         'Adding pf_memory field to table profiling'
1033                 );
1034         }
1035
1036         protected function doFilearchiveIndicesUpdate() {
1037                 $info = $this->db->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
1038                 if ( !$info ) {
1039                         $this->applyPatch( 'patch-filearchive-user-index.sql', false, "Updating filearchive indices" );
1040                 }
1041
1042                 return true;
1043         }
1044
1045         protected function doNonUniquePlTlIl() {
1046                 $info = $this->db->indexInfo( 'pagelinks', 'pl_namespace' );
1047                 if ( is_array( $info ) && $info[0]->Non_unique ) {
1048                         $this->output( "...pl_namespace, tl_namespace, il_to indices are already non-UNIQUE.\n" );
1049
1050                         return true;
1051                 }
1052                 if ( $this->skipSchema ) {
1053                         $this->output( "...skipping schema change (making pl_namespace, tl_namespace " .
1054                                 "and il_to indices non-UNIQUE).\n" );
1055
1056                         return false;
1057                 }
1058
1059                 return $this->applyPatch(
1060                         'patch-pl-tl-il-nonunique.sql',
1061                         false,
1062                         'Making pl_namespace, tl_namespace and il_to indices non-UNIQUE'
1063                 );
1064         }
1065
1066         protected function doUpdateMimeMinorField() {
1067                 if ( $this->updateRowExists( 'mime_minor_length' ) ) {
1068                         $this->output( "...*_mime_minor fields are already long enough.\n" );
1069
1070                         return;
1071                 }
1072
1073                 $this->applyPatch(
1074                         'patch-mime_minor_length.sql',
1075                         false,
1076                         'Altering all *_mime_minor fields to 100 bytes in size'
1077                 );
1078         }
1079
1080         protected function doClFieldsUpdate() {
1081                 if ( $this->updateRowExists( 'cl_fields_update' ) ) {
1082                         $this->output( "...categorylinks up-to-date.\n" );
1083
1084                         return;
1085                 }
1086
1087                 $this->applyPatch(
1088                         'patch-categorylinks-better-collation2.sql',
1089                         false,
1090                         'Updating categorylinks (again)'
1091                 );
1092         }
1093
1094         protected function doLangLinksLengthUpdate() {
1095                 $langlinks = $this->db->tableName( 'langlinks' );
1096                 $res = $this->db->query( "SHOW COLUMNS FROM $langlinks LIKE 'll_lang'" );
1097                 $row = $this->db->fetchObject( $res );
1098
1099                 if ( $row && $row->Type == "varbinary(10)" ) {
1100                         $this->applyPatch(
1101                                 'patch-langlinks-ll_lang-20.sql',
1102                                 false,
1103                                 'Updating length of ll_lang in langlinks'
1104                         );
1105                 } else {
1106                         $this->output( "...ll_lang is up-to-date.\n" );
1107                 }
1108         }
1109
1110         protected function doUserNewTalkTimestampNotNull() {
1111                 if ( !$this->doTable( 'user_newtalk' ) ) {
1112                         return true;
1113                 }
1114
1115                 $info = $this->db->fieldInfo( 'user_newtalk', 'user_last_timestamp' );
1116                 if ( $info === false ) {
1117                         return;
1118                 }
1119                 if ( $info->isNullable() ) {
1120                         $this->output( "...user_last_timestamp is already nullable.\n" );
1121
1122                         return;
1123                 }
1124
1125                 $this->applyPatch(
1126                         'patch-user-newtalk-timestamp-null.sql',
1127                         false,
1128                         'Making user_last_timestamp nullable'
1129                 );
1130         }
1131
1132         protected function doIwlinksIndexNonUnique() {
1133                 $info = $this->db->indexInfo( 'iwlinks', 'iwl_prefix_title_from' );
1134                 if ( is_array( $info ) && $info[0]->Non_unique ) {
1135                         $this->output( "...iwl_prefix_title_from index is already non-UNIQUE.\n" );
1136
1137                         return true;
1138                 }
1139                 if ( $this->skipSchema ) {
1140                         $this->output( "...skipping schema change (making iwl_prefix_title_from index non-UNIQUE).\n" );
1141
1142                         return false;
1143                 }
1144
1145                 return $this->applyPatch(
1146                         'patch-iwl_prefix_title_from-non-unique.sql',
1147                         false,
1148                         'Making iwl_prefix_title_from index non-UNIQUE'
1149                 );
1150         }
1151
1152         protected function doUnsignedSyncronisation() {
1153                 $sync = [
1154                         [ 'table' => 'bot_passwords', 'field' => 'bp_user' ],
1155                         [ 'table' => 'change_tag', 'field' => 'ct_log_id' ],
1156                         [ 'table' => 'change_tag', 'field' => 'ct_rev_id' ],
1157                         [ 'table' => 'page_restrictions', 'field' => 'pr_user' ],
1158                         [ 'table' => 'tag_summary', 'field' => 'ts_log_id' ],
1159                         [ 'table' => 'tag_summary', 'field' => 'ts_rev_id' ],
1160                         [ 'table' => 'user_newtalk', 'field' => 'user_id' ],
1161                         [ 'table' => 'user_properties', 'field' => 'up_user' ],
1162                 ];
1163
1164                 foreach ( $sync as $s ) {
1165                         if ( !$this->doTable( $s['table'] ) ) {
1166                                 continue;
1167                         }
1168
1169                         $info = $this->db->fieldInfo( $s['table'], $s['field'] );
1170                         if ( $info === false ) {
1171                                 continue;
1172                         }
1173                         $fullName = "{$s['table']}.{$s['field']}";
1174                         if ( $info->isUnsigned() ) {
1175                                 $this->output( "...$fullName is already unsigned int.\n" );
1176
1177                                 continue;
1178                         }
1179
1180                         $this->applyPatch(
1181                                 "patch-{$s['table']}-{$s['field']}-unsigned.sql",
1182                                 false,
1183                                 "Making $fullName into an unsigned int"
1184                         );
1185                 }
1186
1187                 return true;
1188         }
1189
1190         protected function doRevisionPageRevIndexNonUnique() {
1191                 if ( !$this->doTable( 'revision' ) ) {
1192                         return true;
1193                 } elseif ( !$this->db->indexExists( 'revision', 'rev_page_id' ) ) {
1194                         $this->output( "...rev_page_id index not found on revision.\n" );
1195                         return true;
1196                 }
1197
1198                 if ( !$this->db->indexUnique( 'revision', 'rev_page_id' ) ) {
1199                         $this->output( "...rev_page_id index already non-unique.\n" );
1200                         return true;
1201                 }
1202
1203                 return $this->applyPatch(
1204                         'patch-revision-page-rev-index-nonunique.sql',
1205                         false,
1206                         'Making rev_page_id index non-unique'
1207                 );
1208         }
1209
1210         protected function doExtendCommentLengths() {
1211                 $table = $this->db->tableName( 'revision' );
1212                 $res = $this->db->query( "SHOW COLUMNS FROM $table LIKE 'rev_comment'" );
1213                 $row = $this->db->fetchObject( $res );
1214
1215                 if ( $row && ( $row->Type !== "varbinary(767)" || $row->Default !== "" ) ) {
1216                         $this->applyPatch(
1217                                 'patch-editsummary-length.sql',
1218                                 false,
1219                                 'Extending edit summary lengths (and setting defaults)'
1220                         );
1221                 } else {
1222                         $this->output( '...comment fields are up to date' );
1223                 }
1224         }
1225
1226         public function getSchemaVars() {
1227                 global $wgDBTableOptions;
1228
1229                 $vars = [];
1230                 $vars['wgDBTableOptions'] = str_replace( 'TYPE', 'ENGINE', $wgDBTableOptions );
1231                 $vars['wgDBTableOptions'] = str_replace(
1232                         'CHARSET=mysql4',
1233                         'CHARSET=binary',
1234                         $vars['wgDBTableOptions']
1235                 );
1236
1237                 return $vars;
1238         }
1239 }