includes/installer/PostgresUpdater.php

   1 <?php
   2 /**
   3  * PostgreSQL-specific updater.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Deployment
  22  */
  23
  24 /**
  25  * Class for handling updates to Postgres databases.
  26  *
  27  * @ingroup Deployment
  28  * @since 1.17
  29  */
  30
  31 class PostgresUpdater extends DatabaseUpdater {
  32
  33         /**
  34          * @var DatabasePostgres
  35          */
  36         protected $db;
  37
  38         /**
  39          * @todo FIXME: Postgres should use sequential updates like Mysql, Sqlite
  40          * and everybody else. It never got refactored like it should've.
  41          * @return array
  42          */
  43         protected function getCoreUpdateList() {
  44                 return array(
  45                         # rename tables 1.7.3
  46                         # r15791 Change reserved word table names "user" and "text"
  47                         array( 'renameTable', 'user', 'mwuser' ),
  48                         array( 'renameTable', 'text', 'pagecontent' ),
  49                         array( 'renameIndex', 'mwuser', 'user_pkey', 'mwuser_pkey'),
  50                         array( 'renameIndex', 'mwuser', 'user_user_name_key', 'mwuser_user_name_key' ),
  51                         array( 'renameIndex', 'pagecontent','text_pkey', 'pagecontent_pkey' ),
  52
  53                         # renamed sequences
  54                         array( 'renameSequence', 'ipblocks_ipb_id_val', 'ipblocks_ipb_id_seq'         ),
  55                         array( 'renameSequence', 'rev_rev_id_val',      'revision_rev_id_seq'         ),
  56                         array( 'renameSequence', 'text_old_id_val',     'text_old_id_seq'             ),
  57                         array( 'renameSequence', 'rc_rc_id_seq',        'recentchanges_rc_id_seq'     ),
  58                         array( 'renameSequence', 'log_log_id_seq',      'logging_log_id_seq'          ),
  59                         array( 'renameSequence', 'pr_id_val',           'page_restrictions_pr_id_seq' ),
  60                         array( 'renameSequence', 'us_id_seq',           'uploadstash_us_id_seq' ),
  61
  62                         # since r58263
  63                         array( 'renameSequence', 'category_id_seq', 'category_cat_id_seq'),
  64
  65                         # new sequences if not renamed above
  66                         array( 'addSequence', 'logging', false, 'logging_log_id_seq' ),
  67                         array( 'addSequence', 'page_restrictions', false, 'page_restrictions_pr_id_seq' ),
  68                         array( 'addSequence', 'filearchive', 'fa_id', 'filearchive_fa_id_seq' ),
  69
  70                         # new tables
  71                         array( 'addTable', 'category',          'patch-category.sql' ),
  72                         array( 'addTable', 'page',              'patch-page.sql' ),
  73                         array( 'addTable', 'querycachetwo',     'patch-querycachetwo.sql' ),
  74                         array( 'addTable', 'page_props',        'patch-page_props.sql' ),
  75                         array( 'addTable', 'page_restrictions', 'patch-page_restrictions.sql' ),
  76                         array( 'addTable', 'profiling',         'patch-profiling.sql' ),
  77                         array( 'addTable', 'protected_titles',  'patch-protected_titles.sql' ),
  78                         array( 'addTable', 'redirect',          'patch-redirect.sql' ),
  79                         array( 'addTable', 'updatelog',         'patch-updatelog.sql' ),
  80                         array( 'addTable', 'change_tag',        'patch-change_tag.sql' ),
  81                         array( 'addTable', 'tag_summary',       'patch-tag_summary.sql' ),
  82                         array( 'addTable', 'valid_tag',         'patch-valid_tag.sql' ),
  83                         array( 'addTable', 'user_properties',   'patch-user_properties.sql' ),
  84                         array( 'addTable', 'log_search',        'patch-log_search.sql' ),
  85                         array( 'addTable', 'l10n_cache',        'patch-l10n_cache.sql' ),
  86                         array( 'addTable', 'iwlinks',           'patch-iwlinks.sql' ),
  87                         array( 'addTable', 'msg_resource',      'patch-msg_resource.sql' ),
  88                         array( 'addTable', 'msg_resource_links','patch-msg_resource_links.sql' ),
  89                         array( 'addTable', 'module_deps',       'patch-module_deps.sql' ),
  90                         array( 'addTable', 'uploadstash',       'patch-uploadstash.sql' ),
  91                         array( 'addTable', 'user_former_groups','patch-user_former_groups.sql' ),
  92                         array( 'addTable', 'external_user',     'patch-external_user.sql' ),
  93                         array( 'addTable', 'sites',             'patch-sites.sql' ),
  94
  95                         # Needed before new field
  96                         array( 'convertArchive2' ),
  97
  98                         # new fields
  99                         array( 'addPgField', 'updatelog',     'ul_value',             'TEXT' ),
 100                         array( 'addPgField', 'archive',       'ar_deleted',           'SMALLINT NOT NULL DEFAULT 0' ),
 101                         array( 'addPgField', 'archive',       'ar_len',               'INTEGER' ),
 102                         array( 'addPgField', 'archive',       'ar_page_id',           'INTEGER' ),
 103                         array( 'addPgField', 'archive',       'ar_parent_id',         'INTEGER' ),
 104                         array( 'addPgField', 'archive',       'ar_content_model',     'TEXT' ),
 105                         array( 'addPgField', 'archive',       'ar_content_format',    'TEXT' ),
 106                         array( 'addPgField', 'categorylinks', 'cl_sortkey_prefix',    "TEXT NOT NULL DEFAULT ''"),
 107                         array( 'addPgField', 'categorylinks', 'cl_collation',         "TEXT NOT NULL DEFAULT 0"),
 108                         array( 'addPgField', 'categorylinks', 'cl_type',              "TEXT NOT NULL DEFAULT 'page'"),
 109                         array( 'addPgField', 'image',         'img_sha1',             "TEXT NOT NULL DEFAULT ''" ),
 110                         array( 'addPgField', 'ipblocks',      'ipb_allow_usertalk',   'SMALLINT NOT NULL DEFAULT 0' ),
 111                         array( 'addPgField', 'ipblocks',      'ipb_anon_only',        'SMALLINT NOT NULL DEFAULT 0' ),
 112                         array( 'addPgField', 'ipblocks',      'ipb_by_text',          "TEXT NOT NULL DEFAULT ''" ),
 113                         array( 'addPgField', 'ipblocks',      'ipb_block_email',      'SMALLINT NOT NULL DEFAULT 0' ),
 114                         array( 'addPgField', 'ipblocks',      'ipb_create_account',   'SMALLINT NOT NULL DEFAULT 1' ),
 115                         array( 'addPgField', 'ipblocks',      'ipb_deleted',          'SMALLINT NOT NULL DEFAULT 0' ),
 116                         array( 'addPgField', 'ipblocks',      'ipb_enable_autoblock', 'SMALLINT NOT NULL DEFAULT 1' ),
 117                         array( 'addPgField', 'ipblocks',      'ipb_parent_block_id',            'INTEGER DEFAULT NULL REFERENCES ipblocks(ipb_id) ON DELETE SET NULL DEFERRABLE INITIALLY DEFERRED' ),
 118                         array( 'addPgField', 'filearchive',   'fa_deleted',           'SMALLINT NOT NULL DEFAULT 0' ),
 119                         array( 'addPgField', 'filearchive',   'fa_sha1',              "TEXT NOT NULL DEFAULT ''" ),
 120                         array( 'addPgField', 'logging',       'log_deleted',          'SMALLINT NOT NULL DEFAULT 0' ),
 121                         array( 'addPgField', 'logging',       'log_id',               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ),
 122                         array( 'addPgField', 'logging',       'log_params',           'TEXT' ),
 123                         array( 'addPgField', 'mwuser',        'user_editcount',       'INTEGER' ),
 124                         array( 'addPgField', 'mwuser',        'user_newpass_time',    'TIMESTAMPTZ' ),
 125                         array( 'addPgField', 'oldimage',      'oi_deleted',           'SMALLINT NOT NULL DEFAULT 0' ),
 126                         array( 'addPgField', 'oldimage',      'oi_major_mime',        "TEXT NOT NULL DEFAULT 'unknown'" ),
 127                         array( 'addPgField', 'oldimage',      'oi_media_type',        'TEXT' ),
 128                         array( 'addPgField', 'oldimage',      'oi_metadata',          "BYTEA NOT NULL DEFAULT ''" ),
 129                         array( 'addPgField', 'oldimage',      'oi_minor_mime',        "TEXT NOT NULL DEFAULT 'unknown'" ),
 130                         array( 'addPgField', 'oldimage',      'oi_sha1',              "TEXT NOT NULL DEFAULT ''" ),
 131                         array( 'addPgField', 'page',          'page_content_model',   'TEXT' ),
 132                         array( 'addPgField', 'page_restrictions', 'pr_id',            "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_seq')" ),
 133                         array( 'addPgField', 'profiling',     'pf_memory',            'NUMERIC(18,10) NOT NULL DEFAULT 0' ),
 134                         array( 'addPgField', 'recentchanges', 'rc_deleted',           'SMALLINT NOT NULL DEFAULT 0' ),
 135                         array( 'addPgField', 'recentchanges', 'rc_log_action',        'TEXT' ),
 136                         array( 'addPgField', 'recentchanges', 'rc_log_type',          'TEXT' ),
 137                         array( 'addPgField', 'recentchanges', 'rc_logid',             'INTEGER NOT NULL DEFAULT 0' ),
 138                         array( 'addPgField', 'recentchanges', 'rc_new_len',           'INTEGER' ),
 139                         array( 'addPgField', 'recentchanges', 'rc_old_len',           'INTEGER' ),
 140                         array( 'addPgField', 'recentchanges', 'rc_params',            'TEXT' ),
 141                         array( 'addPgField', 'redirect',      'rd_interwiki',         'TEXT NULL' ),
 142                         array( 'addPgField', 'redirect',      'rd_fragment',          'TEXT NULL' ),
 143                         array( 'addPgField', 'revision',      'rev_deleted',          'SMALLINT NOT NULL DEFAULT 0' ),
 144                         array( 'addPgField', 'revision',      'rev_len',              'INTEGER' ),
 145                         array( 'addPgField', 'revision',      'rev_parent_id',        'INTEGER DEFAULT NULL' ),
 146                         array( 'addPgField', 'revision',      'rev_content_model',    'TEXT' ),
 147                         array( 'addPgField', 'revision',      'rev_content_format',   'TEXT' ),
 148                         array( 'addPgField', 'site_stats',    'ss_active_users',      "INTEGER DEFAULT '-1'" ),
 149                         array( 'addPgField', 'user_newtalk',  'user_last_timestamp',  'TIMESTAMPTZ' ),
 150                         array( 'addPgField', 'logging',       'log_user_text',        "TEXT NOT NULL DEFAULT ''" ),
 151                         array( 'addPgField', 'logging',       'log_page',             'INTEGER' ),
 152                         array( 'addPgField', 'interwiki',     'iw_api',               "TEXT NOT NULL DEFAULT ''"),
 153                         array( 'addPgField', 'interwiki',     'iw_wikiid',            "TEXT NOT NULL DEFAULT ''"),
 154                         array( 'addPgField', 'revision',      'rev_sha1',             "TEXT NOT NULL DEFAULT ''" ),
 155                         array( 'addPgField', 'archive',       'ar_sha1',              "TEXT NOT NULL DEFAULT ''" ),
 156                         array( 'addPgField', 'uploadstash',   'us_chunk_inx',         "INTEGER NULL" ),
 157                         array( 'addPgField', 'job',           'job_timestamp',        "TIMESTAMPTZ" ),
 158                         array( 'addPgField', 'job',           'job_random',           "INTEGER NOT NULL DEFAULT 0" ),
 159                         array( 'addPgField', 'job',           'job_attempts',         "INTEGER NOT NULL DEFAULT 0" ),
 160                         array( 'addPgField', 'job',           'job_token',            "TEXT NOT NULL DEFAULT ''" ),
 161                         array( 'addPgField', 'job',           'job_token_timestamp',  "TIMESTAMPTZ" ),
 162                         array( 'addPgField', 'job',           'job_sha1',             "TEXT NOT NULL DEFAULT ''" ),
 163
 164                         # type changes
 165                         array( 'changeField', 'archive',       'ar_deleted',      'smallint', '' ),
 166                         array( 'changeField', 'archive',       'ar_minor_edit',   'smallint', 'ar_minor_edit::smallint DEFAULT 0' ),
 167                         array( 'changeField', 'filearchive',   'fa_deleted',      'smallint', '' ),
 168                         array( 'changeField', 'filearchive',   'fa_height',       'integer',  '' ),
 169                         array( 'changeField', 'filearchive',   'fa_metadata',     'bytea',    "decode(fa_metadata,'escape')" ),
 170                         array( 'changeField', 'filearchive',   'fa_size',         'integer',  '' ),
 171                         array( 'changeField', 'filearchive',   'fa_width',        'integer',  '' ),
 172                         array( 'changeField', 'filearchive',   'fa_storage_group', 'text',     '' ),
 173                         array( 'changeField', 'filearchive',   'fa_storage_key',  'text',     '' ),
 174                         array( 'changeField', 'image',         'img_metadata',    'bytea',    "decode(img_metadata,'escape')" ),
 175                         array( 'changeField', 'image',         'img_size',        'integer',  '' ),
 176                         array( 'changeField', 'image',         'img_width',       'integer',  '' ),
 177                         array( 'changeField', 'image',         'img_height',      'integer',  '' ),
 178                         array( 'changeField', 'interwiki',     'iw_local',        'smallint', 'iw_local::smallint' ),
 179                         array( 'changeField', 'interwiki',     'iw_trans',        'smallint', 'iw_trans::smallint DEFAULT 0' ),
 180                         array( 'changeField', 'ipblocks',      'ipb_auto',        'smallint', 'ipb_auto::smallint DEFAULT 0' ),
 181                         array( 'changeField', 'ipblocks',      'ipb_anon_only',   'smallint', "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ),
 182                         array( 'changeField', 'ipblocks',      'ipb_create_account', 'smallint', "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ),
 183                         array( 'changeField', 'ipblocks',      'ipb_enable_autoblock', 'smallint', "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ),
 184                         array( 'changeField', 'ipblocks',      'ipb_block_email', 'smallint', "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ),
 185                         array( 'changeField', 'ipblocks',      'ipb_address',     'text',     'ipb_address::text' ),
 186                         array( 'changeField', 'ipblocks',      'ipb_deleted',     'smallint', 'ipb_deleted::smallint DEFAULT 0' ),
 187                         array( 'changeField', 'mwuser',        'user_token',      'text',     '' ),
 188                         array( 'changeField', 'mwuser',        'user_email_token', 'text',     '' ),
 189                         array( 'changeField', 'objectcache',   'keyname',         'text',     '' ),
 190                         array( 'changeField', 'oldimage',      'oi_height',       'integer',  '' ),
 191                         array( 'changeField', 'oldimage',      'oi_metadata',     'bytea',    "decode(img_metadata,'escape')" ),
 192                         array( 'changeField', 'oldimage',      'oi_size',         'integer',  '' ),
 193                         array( 'changeField', 'oldimage',      'oi_width',        'integer',  '' ),
 194                         array( 'changeField', 'page',          'page_is_redirect', 'smallint', 'page_is_redirect::smallint DEFAULT 0' ),
 195                         array( 'changeField', 'page',          'page_is_new',     'smallint', 'page_is_new::smallint DEFAULT 0' ),
 196                         array( 'changeField', 'querycache',    'qc_value',        'integer',  '' ),
 197                         array( 'changeField', 'querycachetwo', 'qcc_value',       'integer',  '' ),
 198                         array( 'changeField', 'recentchanges', 'rc_bot',          'smallint', 'rc_bot::smallint DEFAULT 0' ),
 199                         array( 'changeField', 'recentchanges', 'rc_deleted',      'smallint', '' ),
 200                         array( 'changeField', 'recentchanges', 'rc_minor',        'smallint', 'rc_minor::smallint DEFAULT 0' ),
 201                         array( 'changeField', 'recentchanges', 'rc_new',          'smallint', 'rc_new::smallint DEFAULT 0' ),
 202                         array( 'changeField', 'recentchanges', 'rc_type',         'smallint', 'rc_type::smallint DEFAULT 0' ),
 203                         array( 'changeField', 'recentchanges', 'rc_patrolled',    'smallint', 'rc_patrolled::smallint DEFAULT 0' ),
 204                         array( 'changeField', 'revision',      'rev_deleted',     'smallint', 'rev_deleted::smallint DEFAULT 0' ),
 205                         array( 'changeField', 'revision',      'rev_minor_edit',  'smallint', 'rev_minor_edit::smallint DEFAULT 0' ),
 206                         array( 'changeField', 'templatelinks', 'tl_namespace',    'smallint', 'tl_namespace::smallint' ),
 207                         array( 'changeField', 'user_newtalk',  'user_ip',         'text',     'host(user_ip)' ),
 208                         array( 'changeField', 'uploadstash',   'us_image_bits',   'smallint', '' ),
 209
 210                         # null changes
 211                         array( 'changeNullableField', 'oldimage', 'oi_bits',       'NULL' ),
 212                         array( 'changeNullableField', 'oldimage', 'oi_timestamp',  'NULL' ),
 213                         array( 'changeNullableField', 'oldimage', 'oi_major_mime', 'NULL' ),
 214                         array( 'changeNullableField', 'oldimage', 'oi_minor_mime', 'NULL' ),
 215                         array( 'changeNullableField', 'image', 'img_metadata', 'NOT NULL'),
 216                         array( 'changeNullableField', 'filearchive', 'fa_metadata', 'NOT NULL'),
 217                         array( 'changeNullableField', 'recentchanges', 'rc_cur_id', 'NULL' ),
 218
 219                         array( 'checkOiDeleted' ),
 220
 221                         # New indexes
 222                         array( 'addPgIndex', 'archive',       'archive_user_text',      '(ar_user_text)' ),
 223                         array( 'addPgIndex', 'image',         'img_sha1',               '(img_sha1)' ),
 224                         array( 'addPgIndex', 'ipblocks',      'ipb_parent_block_id',              '(ipb_parent_block_id)' ),
 225                         array( 'addPgIndex', 'oldimage',      'oi_sha1',                '(oi_sha1)' ),
 226                         array( 'addPgIndex', 'page',          'page_mediawiki_title',   '(page_title) WHERE page_namespace = 8' ),
 227                         array( 'addPgIndex', 'pagelinks',     'pagelinks_title',        '(pl_title)' ),
 228                         array( 'addPgIndex', 'revision',      'rev_text_id_idx',        '(rev_text_id)' ),
 229                         array( 'addPgIndex', 'recentchanges', 'rc_timestamp_bot',       '(rc_timestamp) WHERE rc_bot = 0' ),
 230                         array( 'addPgIndex', 'templatelinks', 'templatelinks_from',     '(tl_from)' ),
 231                         array( 'addPgIndex', 'watchlist',     'wl_user',                '(wl_user)' ),
 232                         array( 'addPgIndex', 'logging',       'logging_user_type_time', '(log_user, log_type, log_timestamp)' ),
 233                         array( 'addPgIndex', 'logging',       'logging_page_id_time',   '(log_page,log_timestamp)' ),
 234                         array( 'addPgIndex', 'iwlinks',       'iwl_prefix_title_from',  '(iwl_prefix, iwl_title, iwl_from)' ),
 235                         array( 'addPgIndex', 'job',           'job_timestamp_idx',      '(job_timestamp)' ),
 236                         array( 'addPgIndex', 'job',           'job_sha1',               '(job_sha1)' ),
 237                         array( 'addPgIndex', 'job',           'job_cmd_token',          '(job_cmd, job_token, job_random)' ),
 238                         array( 'addPgIndex', 'job',           'job_cmd_token_id',       '(job_cmd, job_token, job_id)' ),
 239                         array( 'addPgIndex', 'filearchive',   'fa_sha1',                '(fa_sha1)' ),
 240
 241                         array( 'checkIndex', 'pagelink_unique', array(
 242                                 array( 'pl_from', 'int4_ops', 'btree', 0 ),
 243                                 array( 'pl_namespace', 'int2_ops', 'btree', 0 ),
 244                                 array( 'pl_title', 'text_ops', 'btree', 0 ),
 245                         ),
 246                         'CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)' ),
 247                         array( 'checkIndex', 'cl_sortkey', array(
 248                                 array( 'cl_to', 'text_ops', 'btree', 0 ),
 249                                 array( 'cl_sortkey', 'text_ops', 'btree', 0 ),
 250                                 array( 'cl_from', 'int4_ops', 'btree', 0 ),
 251                         ),
 252                         'CREATE INDEX cl_sortkey ON "categorylinks" USING "btree" ("cl_to", "cl_sortkey", "cl_from")' ),
 253                         array( 'checkIndex', 'logging_times', array(
 254                                 array( 'log_timestamp', 'timestamptz_ops', 'btree', 0 ),
 255                         ),
 256                         'CREATE INDEX "logging_times" ON "logging" USING "btree" ("log_timestamp")' ),
 257                         array( 'dropIndex', 'oldimage', 'oi_name' ),
 258                         array( 'checkIndex', 'oi_name_archive_name', array(
 259                                 array( 'oi_name', 'text_ops', 'btree', 0 ),
 260                                 array( 'oi_archive_name', 'text_ops', 'btree', 0 ),
 261                         ),
 262                         'CREATE INDEX "oi_name_archive_name" ON "oldimage" USING "btree" ("oi_name", "oi_archive_name")' ),
 263                         array( 'checkIndex', 'oi_name_timestamp', array(
 264                                 array( 'oi_name', 'text_ops', 'btree', 0 ),
 265                                 array( 'oi_timestamp', 'timestamptz_ops', 'btree', 0 ),
 266                         ),
 267                         'CREATE INDEX "oi_name_timestamp" ON "oldimage" USING "btree" ("oi_name", "oi_timestamp")' ),
 268                         array( 'checkIndex', 'page_main_title', array(
 269                                 array( 'page_title', 'text_pattern_ops', 'btree', 0 ),
 270                         ),
 271                         'CREATE INDEX "page_main_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 0)' ),
 272                         array( 'checkIndex', 'page_mediawiki_title', array(
 273                                 array( 'page_title', 'text_pattern_ops', 'btree', 0 ),
 274                         ),
 275                         'CREATE INDEX "page_mediawiki_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 8)' ),
 276                         array( 'checkIndex', 'page_project_title', array(
 277                                 array( 'page_title', 'text_pattern_ops', 'btree', 0 ),
 278                         ),
 279                         'CREATE INDEX "page_project_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 4)' ),
 280                         array( 'checkIndex', 'page_talk_title', array(
 281                                 array( 'page_title', 'text_pattern_ops', 'btree', 0 ),
 282                         ),
 283                         'CREATE INDEX "page_talk_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 1)' ),
 284                         array( 'checkIndex', 'page_user_title', array(
 285                                 array( 'page_title', 'text_pattern_ops', 'btree', 0 ),
 286                         ),
 287                         'CREATE INDEX "page_user_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 2)' ),
 288                         array( 'checkIndex', 'page_utalk_title', array(
 289                                 array( 'page_title', 'text_pattern_ops', 'btree', 0 ),
 290                         ),
 291                         'CREATE INDEX "page_utalk_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 3)' ),
 292                         array( 'checkIndex', 'ts2_page_text', array(
 293                                 array( 'textvector', 'tsvector_ops', 'gist', 0 ),
 294                         ),
 295                         'CREATE INDEX "ts2_page_text" ON "pagecontent" USING "gist" ("textvector")' ),
 296                         array( 'checkIndex', 'ts2_page_title', array(
 297                                 array( 'titlevector', 'tsvector_ops', 'gist', 0 ),
 298                         ),
 299                         'CREATE INDEX "ts2_page_title" ON "page" USING "gist" ("titlevector")' ),
 300
 301                         array( 'checkOiNameConstraint' ),
 302                         array( 'checkPageDeletedTrigger' ),
 303                         array( 'checkRevUserFkey' ),
 304                         array( 'dropIndex', 'ipblocks', 'ipb_address'),
 305                         array( 'checkIndex', 'ipb_address_unique', array(
 306                                 array( 'ipb_address', 'text_ops', 'btree', 0 ),
 307                                 array( 'ipb_user',    'int4_ops', 'btree', 0 ),
 308                                 array( 'ipb_auto',    'int2_ops', 'btree', 0 ),
 309                                 array( 'ipb_anon_only', 'int2_ops', 'btree', 0 ),
 310                         ),
 311                         'CREATE UNIQUE INDEX ipb_address_unique ON ipblocks (ipb_address,ipb_user,ipb_auto,ipb_anon_only)' ),
 312
 313                         array( 'checkIwlPrefix' ),
 314
 315                         # All FK columns should be deferred
 316                         array( 'changeFkeyDeferrable', 'archive',          'ar_user',         'mwuser(user_id) ON DELETE SET NULL' ),
 317                         array( 'changeFkeyDeferrable', 'categorylinks',    'cl_from',         'page(page_id) ON DELETE CASCADE' ),
 318                         array( 'changeFkeyDeferrable', 'externallinks',    'el_from',         'page(page_id) ON DELETE CASCADE' ),
 319                         array( 'changeFkeyDeferrable', 'filearchive',      'fa_deleted_user', 'mwuser(user_id) ON DELETE SET NULL' ),
 320                         array( 'changeFkeyDeferrable', 'filearchive',      'fa_user',         'mwuser(user_id) ON DELETE SET NULL' ),
 321                         array( 'changeFkeyDeferrable', 'image',            'img_user',        'mwuser(user_id) ON DELETE SET NULL' ),
 322                         array( 'changeFkeyDeferrable', 'imagelinks',       'il_from',         'page(page_id) ON DELETE CASCADE' ),
 323                         array( 'changeFkeyDeferrable', 'ipblocks',         'ipb_by',          'mwuser(user_id) ON DELETE CASCADE' ),
 324                         array( 'changeFkeyDeferrable', 'ipblocks',         'ipb_user',        'mwuser(user_id) ON DELETE SET NULL' ),
 325                         array( 'changeFkeyDeferrable', 'ipblocks',         'ipb_parent_block_id',       'ipblocks(ipb_id) ON DELETE SET NULL' ),
 326                         array( 'changeFkeyDeferrable', 'langlinks',        'll_from',         'page(page_id) ON DELETE CASCADE' ),
 327                         array( 'changeFkeyDeferrable', 'logging',          'log_user',        'mwuser(user_id) ON DELETE SET NULL' ),
 328                         array( 'changeFkeyDeferrable', 'oldimage',         'oi_name',         'image(img_name) ON DELETE CASCADE ON UPDATE CASCADE' ),
 329                         array( 'changeFkeyDeferrable', 'oldimage',         'oi_user',         'mwuser(user_id) ON DELETE SET NULL' ),
 330                         array( 'changeFkeyDeferrable', 'pagelinks',        'pl_from',         'page(page_id) ON DELETE CASCADE' ),
 331                         array( 'changeFkeyDeferrable', 'page_props',       'pp_page',         'page (page_id) ON DELETE CASCADE' ),
 332                         array( 'changeFkeyDeferrable', 'page_restrictions', 'pr_page',         'page(page_id) ON DELETE CASCADE' ),
 333                         array( 'changeFkeyDeferrable', 'protected_titles', 'pt_user',         'mwuser(user_id) ON DELETE SET NULL' ),
 334                         array( 'changeFkeyDeferrable', 'recentchanges',    'rc_cur_id',       'page(page_id) ON DELETE SET NULL' ),
 335                         array( 'changeFkeyDeferrable', 'recentchanges',    'rc_user',         'mwuser(user_id) ON DELETE SET NULL' ),
 336                         array( 'changeFkeyDeferrable', 'redirect',         'rd_from',         'page(page_id) ON DELETE CASCADE' ),
 337                         array( 'changeFkeyDeferrable', 'revision',         'rev_page',        'page (page_id) ON DELETE CASCADE' ),
 338                         array( 'changeFkeyDeferrable', 'revision',         'rev_user',        'mwuser(user_id) ON DELETE RESTRICT' ),
 339                         array( 'changeFkeyDeferrable', 'templatelinks',    'tl_from',         'page(page_id) ON DELETE CASCADE' ),
 340                         array( 'changeFkeyDeferrable', 'user_groups',      'ug_user',         'mwuser(user_id) ON DELETE CASCADE' ),
 341                         array( 'changeFkeyDeferrable', 'user_newtalk',     'user_id',         'mwuser(user_id) ON DELETE CASCADE' ),
 342                         array( 'changeFkeyDeferrable', 'user_properties',  'up_user',         'mwuser(user_id) ON DELETE CASCADE' ),
 343                         array( 'changeFkeyDeferrable', 'watchlist',        'wl_user',         'mwuser(user_id) ON DELETE CASCADE' ),
 344
 345                         # r81574
 346                         array( 'addInterwikiType' ),
 347                         # end
 348                         array( 'tsearchFixes' ),
 349                 );
 350         }
 351
 352         protected function getOldGlobalUpdates() {
 353                 global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
 354
 355                 $updates = array();
 356
 357                 # Add missing extension tables
 358                 foreach ( $wgExtNewTables as $tableRecord ) {
 359                         $updates[] = array(
 360                                 'addTable', $tableRecord[0], $tableRecord[1], true
 361                         );
 362                 }
 363
 364                 # Add missing extension fields
 365                 foreach ( $wgExtPGNewFields as $fieldRecord ) {
 366                         $updates[] = array(
 367                                         'addPgField', $fieldRecord[0], $fieldRecord[1],
 368                                         $fieldRecord[2]
 369                                 );
 370                 }
 371
 372                 # Change altered columns
 373                 foreach ( $wgExtPGAlteredFields as $fieldRecord ) {
 374                         $updates[] = array(
 375                                         'changeField', $fieldRecord[0], $fieldRecord[1],
 376                                         $fieldRecord[2]
 377                                 );
 378                 }
 379
 380                 # Add missing extension indexes
 381                 foreach ( $wgExtNewIndexes as $fieldRecord ) {
 382                         $updates[] = array(
 383                                         'addPgExtIndex', $fieldRecord[0], $fieldRecord[1],
 384                                         $fieldRecord[2]
 385                                 );
 386                 }
 387
 388                 return $updates;
 389         }
 390
 391         protected function describeTable( $table ) {
 392                 $q = <<<END
 393 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
 394         WHERE pg_class.relnamespace = pg_namespace.oid
 395           AND attrelid=pg_class.oid AND attnum > 0
 396           AND relname=%s AND nspname=%s
 397 END;
 398                 $res = $this->db->query( sprintf( $q,
 399                                 $this->db->addQuotes( $table ),
 400                                 $this->db->addQuotes( $this->db->getCoreSchema() ) ) );
 401                 if ( !$res ) {
 402                         return null;
 403                 }
 404
 405                 $cols = array();
 406                 foreach ( $res as $r ) {
 407                         $cols[] = array(
 408                                         "name" => $r[0],
 409                                         "ord" => $r[1],
 410                                 );
 411                 }
 412                 return $cols;
 413         }
 414
 415         function describeIndex( $idx ) {
 416                 // first fetch the key (which is a list of columns ords) and
 417                 // the table the index applies to (an oid)
 418                 $q = <<<END
 419 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
 420         WHERE nspname=%s
 421           AND pg_class.relnamespace = pg_namespace.oid
 422           AND relname=%s
 423           AND indexrelid=pg_class.oid
 424 END;
 425                 $res = $this->db->query(
 426                         sprintf(
 427                                 $q,
 428                                 $this->db->addQuotes( $this->db->getCoreSchema() ),
 429                                 $this->db->addQuotes( $idx )
 430                         )
 431                 );
 432                 if ( !$res ) {
 433                         return null;
 434                 }
 435                 if ( !( $r = $this->db->fetchRow( $res ) ) ) {
 436                         return null;
 437                 }
 438
 439                 $indkey = $r[0];
 440                 $relid = intval( $r[1] );
 441                 $indkeys = explode( ' ', $indkey );
 442
 443                 $colnames = array();
 444                 foreach ( $indkeys as $rid ) {
 445                         $query = <<<END
 446 SELECT attname FROM pg_class, pg_attribute
 447         WHERE attrelid=$relid
 448           AND attnum=%d
 449           AND attrelid=pg_class.oid
 450 END;
 451                         $r2 = $this->db->query( sprintf( $query, $rid ) );
 452                         if ( !$r2 ) {
 453                                 return null;
 454                         }
 455                         if ( !( $row2 = $this->db->fetchRow( $r2 ) ) ) {
 456                                 return null;
 457                         }
 458                         $colnames[] = $row2[0];
 459                 }
 460
 461                 return $colnames;
 462         }
 463
 464         function fkeyDeltype( $fkey ) {
 465                 $q = <<<END
 466 SELECT confdeltype FROM pg_constraint, pg_namespace
 467         WHERE connamespace=pg_namespace.oid
 468           AND nspname=%s
 469           AND conname=%s;
 470 END;
 471                 $r = $this->db->query(
 472                         sprintf(
 473                                 $q,
 474                                 $this->db->addQuotes( $this->db->getCoreSchema() ),
 475                                 $this->db->addQuotes( $fkey )
 476                         )
 477                 );
 478                 if ( !( $row = $this->db->fetchRow( $r ) ) ) {
 479                         return null;
 480                 }
 481                 return $row[0];
 482         }
 483
 484         function ruleDef( $table, $rule ) {
 485         $q = <<<END
 486 SELECT definition FROM pg_rules
 487         WHERE schemaname = %s
 488           AND tablename = %s
 489           AND rulename = %s
 490 END;
 491                 $r = $this->db->query(
 492                         sprintf(
 493                                 $q,
 494                                 $this->db->addQuotes( $this->db->getCoreSchema() ),
 495                                 $this->db->addQuotes( $table ),
 496                                 $this->db->addQuotes( $rule )
 497                         )
 498                 );
 499                 $row = $this->db->fetchRow( $r );
 500                 if ( !$row ) {
 501                         return null;
 502                 }
 503                 $d = $row[0];
 504                 return $d;
 505         }
 506
 507         protected function addSequence( $table, $pkey, $ns ) {
 508                 if ( !$this->db->sequenceExists( $ns ) ) {
 509                         $this->output( "Creating sequence $ns\n" );
 510                         $this->db->query( "CREATE SEQUENCE $ns" );
 511                         if( $pkey !== false ) {
 512                                 $this->setDefault( $table, $pkey, '"nextval"(\'"' . $ns . '"\'::"regclass")' );
 513                         }
 514                 }
 515         }
 516
 517         protected function renameSequence( $old, $new ) {
 518                 if ( $this->db->sequenceExists( $new ) ) {
 519                         $this->output( "...sequence $new already exists.\n" );
 520                         return;
 521                 }
 522                 if ( $this->db->sequenceExists( $old ) ) {
 523                         $this->output( "Renaming sequence $old to $new\n" );
 524                         $this->db->query( "ALTER SEQUENCE $old RENAME TO $new" );
 525                 }
 526         }
 527
 528         protected function renameTable( $old, $new, $patch = false ) {
 529                 if ( $this->db->tableExists( $old ) ) {
 530                         $this->output( "Renaming table $old to $new\n" );
 531                         $old = $this->db->realTableName( $old, "quoted" );
 532                         $new = $this->db->realTableName( $new, "quoted" );
 533                         $this->db->query( "ALTER TABLE $old RENAME TO $new" );
 534                         if( $patch !== false ) {
 535                                 $this->applyPatch( $patch );
 536                         }
 537                 }
 538         }
 539
 540         protected function renameIndex(
 541                 $table, $old, $new, $skipBothIndexExistWarning = false, $a = false, $b = false
 542         ) {
 543                 // First requirement: the table must exist
 544                 if ( !$this->db->tableExists( $table, __METHOD__ ) ) {
 545                         $this->output( "...skipping: '$table' table doesn't exist yet.\n" );
 546                         return;
 547                 }
 548
 549                 // Second requirement: the new index must be missing
 550                 if ( $this->db->indexExists( $table, $new, __METHOD__ ) ) {
 551                         $this->output( "...index $new already set on $table table.\n" );
 552                         if ( !$skipBothIndexExistWarning
 553                                 && $this->db->indexExists( $table, $old, __METHOD__ ) )
 554                         {
 555                                 $this->output( "...WARNING: $old still exists, despite it has been renamed into $new (which also exists).\n" .
 556                                         "            $old should be manually removed if not needed anymore.\n" );
 557                         }
 558                         return;
 559                 }
 560
 561                 // Third requirement: the old index must exist
 562                 if ( !$this->db->indexExists( $table, $old, __METHOD__ ) ) {
 563                         $this->output( "...skipping: index $old doesn't exist.\n" );
 564                         return;
 565                 }
 566
 567                 $this->db->query( "ALTER INDEX $old RENAME TO $new" );
 568         }
 569
 570         protected function addPgField( $table, $field, $type ) {
 571                 $fi = $this->db->fieldInfo( $table, $field );
 572                 if ( !is_null( $fi ) ) {
 573                         $this->output( "...column '$table.$field' already exists\n" );
 574                         return;
 575                 } else {
 576                         $this->output( "Adding column '$table.$field'\n" );
 577                         $this->db->query( "ALTER TABLE $table ADD $field $type" );
 578                 }
 579         }
 580
 581         protected function changeField( $table, $field, $newtype, $default ) {
 582                 $fi = $this->db->fieldInfo( $table, $field );
 583                 if ( is_null( $fi ) ) {
 584                         $this->output( "...ERROR: expected column $table.$field to exist\n" );
 585                         exit( 1 );
 586                 }
 587
 588                 if ( $fi->type() === $newtype )
 589                         $this->output( "...column '$table.$field' is already of type '$newtype'\n" );
 590                 else {
 591                         $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" );
 592                         $sql = "ALTER TABLE $table ALTER $field TYPE $newtype";
 593                         if ( strlen( $default ) ) {
 594                                 $res = array();
 595                                 if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) {
 596                                         $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]";
 597                                         $this->db->query( $sqldef );
 598                                         $default = preg_replace( '/\s*DEFAULT .+/', '', $default );
 599                                 }
 600                                 $sql .= " USING $default";
 601                         }
 602                         $this->db->query( $sql );
 603                 }
 604         }
 605
 606         protected function setDefault( $table, $field, $default ) {
 607
 608                 $info = $this->db->fieldInfo( $table, $field );
 609                 if ( $info->defaultValue() !== $default ) {
 610                         $this->output( "Changing '$table.$field' default value\n" );
 611                         $this->db->query( "ALTER TABLE $table ALTER $field SET DEFAULT " . $default );
 612                 }
 613         }
 614
 615         protected function changeNullableField( $table, $field, $null) {
 616                 $fi = $this->db->fieldInfo( $table, $field );
 617                 if ( is_null( $fi ) ) {
 618                         $this->output( "...ERROR: expected column $table.$field to exist\n" );
 619                         exit( 1 );
 620                 }
 621                 if ( $fi->isNullable() ) {
 622                         # # It's NULL - does it need to be NOT NULL?
 623                         if ( 'NOT NULL' === $null ) {
 624                                 $this->output( "Changing '$table.$field' to not allow NULLs\n" );
 625                                 $this->db->query( "ALTER TABLE $table ALTER $field SET NOT NULL" );
 626                         } else {
 627                                 $this->output( "...column '$table.$field' is already set as NULL\n" );
 628                         }
 629                 } else {
 630                         # # It's NOT NULL - does it need to be NULL?
 631                         if ( 'NULL' === $null ) {
 632                                 $this->output( "Changing '$table.$field' to allow NULLs\n" );
 633                                 $this->db->query( "ALTER TABLE $table ALTER $field DROP NOT NULL" );
 634                         }
 635                         else {
 636                                 $this->output( "...column '$table.$field' is already set as NOT NULL\n" );
 637                         }
 638                 }
 639         }
 640
 641         public function addPgIndex( $table, $index, $type ) {
 642                 if ( $this->db->indexExists( $table, $index ) ) {
 643                         $this->output( "...index '$index' on table '$table' already exists\n" );
 644                 } else {
 645                         $this->output( "Creating index '$index' on table '$table' $type\n" );
 646                         $this->db->query( "CREATE INDEX $index ON $table $type" );
 647                 }
 648         }
 649
 650         public function addPgExtIndex( $table, $index, $type ) {
 651                 if ( $this->db->indexExists( $table, $index ) ) {
 652                         $this->output( "...index '$index' on table '$table' already exists\n" );
 653                 } else {
 654                         if ( preg_match( '/^\(/', $type ) ) {
 655                                 $this->output( "Creating index '$index' on table '$table'\n" );
 656                                 $this->db->query( "CREATE INDEX $index ON $table $type" );
 657                         } else {
 658                                 $this->applyPatch( $type, true, "Creating index '$index' on table '$table'" );
 659                         }
 660                 }
 661         }
 662
 663         protected function changeFkeyDeferrable( $table, $field, $clause ) {
 664                 $fi = $this->db->fieldInfo( $table, $field );
 665                 if ( is_null( $fi ) ) {
 666                         $this->output( "WARNING! Column '$table.$field' does not exist but it should! Please report this.\n" );
 667                         return;
 668                 }
 669                 if ( $fi->is_deferred() && $fi->is_deferrable() ) {
 670                         return;
 671                 }
 672                 $this->output( "Altering column '$table.$field' to be DEFERRABLE INITIALLY DEFERRED\n" );
 673                 $conname = $fi->conname();
 674                 if ( $fi->conname() ) {
 675                         $conclause = "CONSTRAINT \"$conname\"";
 676                         $command = "ALTER TABLE $table DROP CONSTRAINT $conname";
 677                         $this->db->query( $command );
 678                 } else {
 679                         $this->output( "Column '$table.$field' does not have a foreign key constraint, will be added\n" );
 680                         $conclause = "";
 681                 }
 682                 $command = "ALTER TABLE $table ADD $conclause FOREIGN KEY ($field) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
 683                 $this->db->query( $command );
 684         }
 685
 686         protected function convertArchive2() {
 687                 if ( $this->db->tableExists( "archive2" ) ) {
 688                         if ( $this->db->ruleExists( 'archive', 'archive_insert' ) ) {
 689                                 $this->output( "Dropping rule 'archive_insert'\n" );
 690                                 $this->db->query( 'DROP RULE archive_insert ON archive' );
 691                         }
 692                         if ( $this->db->ruleExists( 'archive', 'archive_delete' ) ) {
 693                                 $this->output( "Dropping rule 'archive_delete'\n" );
 694                                 $this->db->query( 'DROP RULE archive_delete ON archive' );
 695                         }
 696                         $this->applyPatch( 'patch-remove-archive2.sql', false, "Converting 'archive2' back to normal archive table" );
 697                 } else {
 698                         $this->output( "...obsolete table 'archive2' does not exist\n" );
 699                 }
 700         }
 701
 702         protected function checkOiDeleted() {
 703                 if ( $this->db->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) {
 704                         $this->output( "Changing 'oldimage.oi_deleted' to type 'smallint'\n" );
 705                         $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
 706                         $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
 707                         $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
 708                 } else {
 709                         $this->output( "...column 'oldimage.oi_deleted' is already of type 'smallint'\n" );
 710                 }
 711         }
 712
 713         protected function checkOiNameConstraint() {
 714                 if ( $this->db->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
 715                         $this->output( "...table 'oldimage' has correct cascading delete/update foreign key to image\n" );
 716                 } else {
 717                         if ( $this->db->hasConstraint( "oldimage_oi_name_fkey" ) ) {
 718                                 $this->db->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
 719                         }
 720                         if ( $this->db->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
 721                                 $this->db->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
 722                         }
 723                         $this->output( "Making foreign key on table 'oldimage' (to image) a cascade delete/update\n" );
 724                         $this->db->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
 725                                 "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" );
 726                 }
 727         }
 728
 729         protected function checkPageDeletedTrigger() {
 730                 if ( !$this->db->triggerExists( 'page', 'page_deleted' ) ) {
 731                         $this->applyPatch( 'patch-page_deleted.sql', false, "Adding function and trigger 'page_deleted' to table 'page'" );
 732                 } else {
 733                         $this->output( "...table 'page' has 'page_deleted' trigger\n" );
 734                 }
 735         }
 736
 737         protected function dropIndex( $table, $index, $patch = '', $fullpath = false ) {
 738                 if ( $this->db->indexExists( $table, $index ) ) {
 739                         $this->output( "Dropping obsolete index '$index'\n" );
 740                         $this->db->query( "DROP INDEX \"". $index ."\"" );
 741                 }
 742         }
 743
 744         protected function checkIndex( $index, $should_be, $good_def ) {
 745                 $pu = $this->db->indexAttributes( $index );
 746                 if ( !empty( $pu ) && $pu != $should_be ) {
 747                         $this->output( "Dropping obsolete version of index '$index'\n" );
 748                         $this->db->query( "DROP INDEX \"". $index ."\"" );
 749                         $pu = array();
 750                 } else {
 751                         $this->output( "...no need to drop index '$index'\n" );
 752                 }
 753
 754                 if ( empty( $pu ) ) {
 755                         $this->output( "Creating index '$index'\n" );
 756                         $this->db->query( $good_def );
 757                 } else {
 758                         $this->output( "...index '$index' exists\n" );
 759                 }
 760         }
 761
 762         protected function checkRevUserFkey() {
 763                 if ( $this->fkeyDeltype( 'revision_rev_user_fkey' ) == 'r' ) {
 764                         $this->output( "...constraint 'revision_rev_user_fkey' is ON DELETE RESTRICT\n" );
 765                 } else {
 766                         $this->applyPatch( 'patch-revision_rev_user_fkey.sql', false, "Changing constraint 'revision_rev_user_fkey' to ON DELETE RESTRICT" );
 767                 }
 768         }
 769
 770         protected function checkIwlPrefix() {
 771                 if ( $this->db->indexExists( 'iwlinks', 'iwl_prefix' ) ) {
 772                         $this->applyPatch( 'patch-rename-iwl_prefix.sql', false, "Replacing index 'iwl_prefix' with 'iwl_prefix_from_title'" );
 773                 }
 774         }
 775
 776         protected function addInterwikiType() {
 777                 $this->applyPatch( 'patch-add_interwiki.sql', false, "Refreshing add_interwiki()" );
 778         }
 779
 780         protected function tsearchFixes() {
 781                 # Tweak the page_title tsearch2 trigger to filter out slashes
 782                 # This is create or replace, so harmless to call if not needed
 783                 $this->applyPatch( 'patch-ts2pagetitle.sql', false, "Refreshing ts2_page_title()" );
 784
 785                 # If the server is 8.3 or higher, rewrite the tsearch2 triggers
 786                 # in case they have the old 'default' versions
 787                 # Gather version numbers in case we need them
 788                 if ( $this->db->getServerVersion() >= 8.3 ) {
 789                         $this->applyPatch( 'patch-tsearch2funcs.sql', false, "Rewriting tsearch2 triggers" );
 790                 }
 791         }
 792 }