Remove unused global $IP
[lhc/web/wiklou.git] / maintenance / updaters.inc
index a49c875..7efe3a6 100644 (file)
@@ -11,152 +11,23 @@ if ( !defined( 'MEDIAWIKI' ) ) {
 
 require_once 'convertLinks.inc';
 require_once 'userDupes.inc';
-require_once 'deleteDefaultMessages.php';
 # Extension updates
 require_once( "$IP/includes/Hooks.php" );
 
 /**
- * List of update functions to call on a MySQL-based MediaWiki installation,
- * in sequence. First item is function name, rest are parameters to pass.
+ * @deprecated. Do not use, ever.
  */
-$wgMysqlUpdates = array(
-       // 1.2
-       // update_passwords obsolete
-       array( 'add_field', 'ipblocks',      'ipb_id',           'patch-ipblocks.sql' ),
-       array( 'add_field', 'ipblocks',      'ipb_expiry',       'patch-ipb_expiry.sql' ),
-       array( 'do_interwiki_update' ),
-       array( 'do_index_update' ),
-       // do_linkscc_update obsolete
-       array( 'add_table', 'hitcounter',                        'patch-hitcounter.sql' ),
-       array( 'add_field', 'recentchanges', 'rc_type',          'patch-rc_type.sql' ),
-       
-       // 1.3
-       array( 'add_field', 'user',          'user_real_name',   'patch-user-realname.sql' ),
-       array( 'add_table', 'querycache',                        'patch-querycache.sql' ),
-       array( 'add_table', 'objectcache',                       'patch-objectcache.sql' ),
-       array( 'add_table', 'categorylinks',                     'patch-categorylinks.sql' ),
-       // do_linkscc_1_3_update obsolete
-       array( 'do_old_links_update' ),
-       array( 'add_field', 'recentchanges', 'rc_ip',            'patch-rc_ip.sql' ),
-       
-       // 1.4
-       array( 'do_image_name_unique_update' ),
-       array( 'add_field', 'recentchanges', 'rc_id',            'patch-rc_id.sql' ),
-       array( 'add_field', 'recentchanges', 'rc_patrolled',     'patch-rc-patrol.sql' ),
-       array( 'add_table', 'logging',                           'patch-logging.sql' ),
-       // do_user_rights_update obsolete
-       array( 'add_field', 'user',          'user_token',       'patch-user_token.sql' ),
-       // old, old_articleid, patch-remove-old-title-namespace.sql obsolete
-       // user_groups, patch-userlevels.sql obsolete
-       // do_group_update() obsolete
-       array( 'do_watchlist_update' ),
-       array( 'do_user_update' ),
-       // do_copy_newtalk_to_watchlist obsolete
-       
-       // 1.5
-       array( 'do_schema_restructuring' ),
-       array( 'add_field', 'logging',       'log_params',       'patch-log_params.sql' ),
-       array( 'check_bin', 'logging',       'log_title',        'patch-logging-title.sql', ),
-       array( 'add_field', 'archive',       'ar_rev_id',        'patch-archive-rev_id.sql' ),
-       array( 'add_field', 'page',          'page_len',         'patch-page_len.sql' ),
-       array( 'do_inverse_timestamp' ),
-       array( 'do_text_id' ),
-       array( 'add_field', 'revision',      'rev_deleted',      'patch-rev_deleted.sql' ),
-       array( 'add_field', 'image',         'img_width',        'patch-img_width.sql' ),
-       array( 'add_field', 'image',         'img_metadata',     'patch-img_metadata.sql' ),
-       array( 'add_field', 'user',          'user_email_token', 'patch-user_email_token.sql' ),
-       array( 'add_field', 'archive',       'ar_text_id',       'patch-archive-text_id.sql' ),
-       array( 'do_namespace_size' ),
-       array( 'add_field', 'image',         'img_media_type',   'patch-img_media_type.sql' ),
-       array( 'do_pagelinks_update' ),
-       array( 'do_drop_img_type' ),
-       array( 'do_user_unique_update' ),
-       array( 'do_user_groups_update' ),
-       array( 'add_field', 'site_stats',    'ss_total_pages',   'patch-ss_total_articles.sql' ),
-       array( 'add_table', 'user_newtalk',                      'patch-usernewtalk2.sql' ),
-       array( 'add_table', 'transcache',                        'patch-transcache.sql' ),
-       array( 'add_field', 'interwiki',     'iw_trans',         'patch-interwiki-trans.sql' ),
-       array( 'add_table', 'trackbacks',                        'patch-trackbacks.sql' ),
-       
-       // 1.6
-       array( 'do_watchlist_null' ),
-       // do_image_index_update obsolete
-       array( 'do_logging_timestamp_index' ),
-       array( 'add_field', 'ipblocks',        'ipb_range_start',  'patch-ipb_range_start.sql' ),
-       array( 'do_page_random_update' ),
-       array( 'add_field', 'user',            'user_registration','patch-user_registration.sql' ),
-       array( 'do_templatelinks_update' ),
-       array( 'add_table', 'externallinks',                       'patch-externallinks.sql' ),
-       array( 'add_table', 'job',                                 'patch-job.sql' ),
-       array( 'add_field', 'site_stats',      'ss_images',        'patch-ss_images.sql' ),
-       array( 'add_table', 'langlinks',                           'patch-langlinks.sql' ),
-       array( 'add_table', 'querycache_info',                     'patch-querycacheinfo.sql' ),
-       array( 'add_table', 'filearchive',                         'patch-filearchive.sql' ),
-       array( 'add_field', 'ipblocks',        'ipb_anon_only',    'patch-ipb_anon_only.sql' ),
-       array( 'do_rc_indices_update' ),
-       
-       // 1.9
-       array( 'add_field', 'user',          'user_newpass_time', 'patch-user_newpass_time.sql' ),
-       array( 'add_table', 'redirect',                           'patch-redirect.sql' ),
-       array( 'add_table', 'querycachetwo', 'patch-querycachetwo.sql' ),
-       array( 'add_field', 'ipblocks',      'ipb_enable_autoblock', 'patch-ipb_optional_autoblock.sql' ),
-       array( 'do_backlinking_indices_update' ),
-       array( 'add_field', 'recentchanges', 'rc_old_len',        'patch-rc_len.sql' ),
-       array( 'add_field', 'user',          'user_editcount',    'patch-user_editcount.sql' ),
-       
-       // 1.10
-       array( 'do_restrictions_update' ),
-       array( 'add_field', 'logging',       'log_id',           'patch-log_id.sql' ),
-       array( 'add_field', 'revision',      'rev_parent_id',    'patch-rev_parent_id.sql' ),
-       array( 'add_field', 'page_restrictions', 'pr_id',        'patch-page_restrictions_sortkey.sql' ),
-       array( 'add_field', 'revision',      'rev_len',          'patch-rev_len.sql' ),
-       array( 'add_field', 'recentchanges', 'rc_deleted',       'patch-rc_deleted.sql' ),
-       array( 'add_field', 'logging',       'log_deleted',      'patch-log_deleted.sql' ),
-       array( 'add_field', 'archive',       'ar_deleted',       'patch-ar_deleted.sql' ),
-       array( 'add_field', 'ipblocks',      'ipb_deleted',      'patch-ipb_deleted.sql' ),
-       array( 'add_field', 'filearchive',   'fa_deleted',       'patch-fa_deleted.sql' ),
-       array( 'add_field', 'archive',       'ar_len',           'patch-ar_len.sql' ),
-       
-       // 1.11
-       array( 'add_field', 'ipblocks',      'ipb_block_email',  'patch-ipb_emailban.sql' ),
-       array( 'do_categorylinks_indices_update' ),
-       array( 'add_field', 'oldimage',      'oi_metadata',      'patch-oi_metadata.sql'),
-       array( 'do_archive_user_index' ),
-       array( 'do_image_user_index' ),
-       array( 'do_oldimage_user_index' ),
-       array( 'add_field', 'archive',       'ar_page_id',       'patch-archive-page_id.sql'),
-       array( 'add_field', 'image',         'img_sha1',         'patch-img_sha1.sql' ),
-
-       // 1.12
-       array( 'add_table', 'protected_titles',                  'patch-protected_titles.sql' ),
-       
-       // 1.13
-       array( 'add_field', 'ipblocks',      'ipb_by_text',      'patch-ipb_by_text.sql' ),
-       array( 'add_table', 'page_props',                        'patch-page_props.sql' ),
-       array( 'add_table', 'updatelog',                         'patch-updatelog.sql' ),
-       array( 'add_table', 'category',                          'patch-category.sql' ),
-       array( 'do_category_population' ),
-       array( 'add_field', 'archive',       'ar_parent_id',     'patch-ar_parent_id.sql'),
-       array( 'add_field', 'user_newtalk',  'user_last_timestamp', 'patch-user_last_timestamp.sql'),
-       array( 'do_populate_parent_id' ),
-       array( 'check_bin', 'protected_titles', 'pt_title',      'patch-pt_title-encoding.sql', ),
-       array( 'maybe_do_profiling_memory_update' ),
-       array( 'do_filearchive_indices_update' ),
-       array( 'update_password_format' ),
-       
-       // 1.14
-       array( 'add_field', 'site_stats',     'ss_active_users',  'patch-ss_active_users.sql' ),
-       array( 'do_active_users_init' ),
-       array( 'add_field', 'ipblocks',     'ipb_allow_usertalk',  'patch-ipb_allow_usertalk.sql' )
-);
+$wgUpdates = array();
 
 
 # For extensions only, should be populated via hooks
 # $wgDBtype should be checked to specifiy the proper file
 $wgExtNewTables = array(); // table, dir
 $wgExtNewFields = array(); // table, column, dir
-$wgExtPGNewFields = array(); // table, column attributes; for PostgreSQL
+$wgExtPGNewFields = array(); // table, column, column attributes; for PostgreSQL
+$wgExtPGAlteredFields = array(); // table, column, new type, conversion method; for PostgreSQL
 $wgExtNewIndexes = array(); // table, index, dir
+$wgExtModifiedFields = array(); // table, index, dir
 
 # Helper function: check if the given key is present in the updatelog table.
 # Obviously, only use this for updates that occur after the updatelog table was
@@ -176,11 +47,11 @@ function rename_table( $from, $to, $patch ) {
        global $wgDatabase;
        if ( $wgDatabase->tableExists( $from ) ) {
                if ( $wgDatabase->tableExists( $to ) ) {
-                       echo "...can't move table $from to $to, $to already exists.\n";
+                       wfOut( "...can't move table $from to $to, $to already exists.\n" );
                } else {
-                       echo "Moving table $from to $to...";
-                       dbsource( archive($patch), $wgDatabase );
-                       echo "ok\n";
+                       wfOut( "Moving table $from to $to..." );
+                       $wgDatabase->sourceFile( archive( $patch ) );
+                       wfOut( "ok\n" );
                }
        } else {
                // Source table does not exist
@@ -189,114 +60,111 @@ function rename_table( $from, $to, $patch ) {
        }
 }
 
-function add_table( $name, $patch, $fullpath=false ) {
+function add_table( $name, $patch, $fullpath = false ) {
        global $wgDatabase;
        if ( $wgDatabase->tableExists( $name ) ) {
-               echo "...$name table already exists.\n";
+               wfOut( "...$name table already exists.\n" );
        } else {
-               echo "Creating $name table...";
-               if( $fullpath ) {
-                       dbsource( $patch, $wgDatabase );
+               wfOut( "Creating $name table..." );
+               if ( $fullpath ) {
+                       $wgDatabase->sourceFile( $patch );
                } else {
-                       dbsource( archive($patch), $wgDatabase );
+                       $wgDatabase->sourceFile( archive( $patch ) );
                }
-               echo "ok\n";
+               wfOut( "ok\n" );
        }
 }
 
-function add_field( $table, $field, $patch, $fullpath=false ) {
+function modify_field( $table, $field, $patch, $fullpath = false ) {
        global $wgDatabase;
        if ( !$wgDatabase->tableExists( $table ) ) {
-               echo "...$table table does not exist, skipping new field patch\n";
-       } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
-               echo "...have $field field in $table table.\n";
+               wfOut( "...$table table does not exist, skipping modify field patch\n" );
+       } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
+               wfOut( "...$field field does not exist in $table table, skipping modify field patch\n" );
        } else {
-               echo "Adding $field field to table $table...";
-               if( $fullpath ) {
-                       dbsource( $patch, $wgDatabase );
+               wfOut( "Modifying $field field of table $table..." );
+               if ( $fullpath ) {
+                       $wgDatabase->sourceFile( $patch );
                } else {
-                       dbsource( archive($patch), $wgDatabase );
+                       $wgDatabase->sourceFile( archive( $patch ) );
                }
-               echo "ok\n";
+               wfOut( "ok\n" );
        }
 }
 
-function add_index( $table, $index, $patch, $fullpath=false ) {
+function add_field( $table, $field, $patch, $fullpath = false ) {
        global $wgDatabase;
-       if( $wgDatabase->indexExists( $table, $index ) ) {
-               echo "...$index key already set on $table table.\n";
+       if ( !$wgDatabase->tableExists( $table ) ) {
+               wfOut( "...$table table does not exist, skipping new field patch\n" );
+       } elseif ( $wgDatabase->fieldExists( $table, $field ) ) {
+               wfOut( "...have $field field in $table table.\n" );
        } else {
-               echo "Adding $index key to table $table... ";
-               if( $fullpath ) {
-                       dbsource( $patch, $wgDatabase );
+               wfOut( "Adding $field field to table $table..." );
+               if ( $fullpath ) {
+                       $wgDatabase->sourceFile( $patch );
                } else {
-                       dbsource( archive($patch), $wgDatabase );
+                       $wgDatabase->sourceFile( archive( $patch ) );
                }
-               echo "ok\n";
+               wfOut( "ok\n" );
        }
 }
 
-function do_revision_updates() {
-       global $wgSoftwareRevision;
-       if ( $wgSoftwareRevision < 1001 ) {
-               update_passwords();
+function add_index( $table, $index, $patch, $fullpath = false ) {
+       global $wgDatabase;
+       if ( $wgDatabase->indexExists( $table, $index ) ) {
+               wfOut( "...$index key already set on $table table.\n" );
+       } else {
+               wfOut( "Adding $index key to table $table... " );
+               if ( $fullpath ) {
+                       $wgDatabase->sourceFile( $patch );
+               } else {
+                       $wgDatabase->sourceFile( archive( $patch ) );
+               }
+               wfOut( "ok\n" );
        }
 }
 
-function update_passwords() {
-       wfDebugDieBacktrace( "This function needs to be updated or removed.\n" );
-
+function drop_index_if_exists( $table, $index, $patch, $fullpath = false ) {
        global $wgDatabase;
-       $fname = "Update script: update_passwords()";
-       print "\nIt appears that you need to update the user passwords in your\n" .
-         "database. If you have already done this (if you've run this update\n" .
-         "script once before, for example), doing so again will make all your\n" .
-         "user accounts inaccessible, so be sure you only do this once.\n" .
-         "Update user passwords? (yes/no)";
-
-       $resp = readconsole();
-    if ( ! ( "Y" == $resp{0} || "y" == $resp{0} ) ) { return; }
-
-       $sql = "SELECT user_id,user_password FROM user";
-       $source = $wgDatabase->query( $sql, $fname );
-
-       while ( $row = $wgDatabase->fetchObject( $source ) ) {
-               $id = $row->user_id;
-               $oldpass = $row->user_password;
-               $newpass = md5( "{$id}-{$oldpass}" );
-
-               $sql = "UPDATE user SET user_password='{$newpass}' " .
-                 "WHERE user_id={$id}";
-               $wgDatabase->query( $sql, $fname );
+       if ( $wgDatabase->indexExists( $table, $index ) ) {
+               wfOut( "Dropping $index from table $table... " );
+               if ( $fullpath ) {
+                       $wgDatabase->sourceFile( $patch );
+               } else {
+                       $wgDatabase->sourceFile( archive( $patch ) );
+               }
+               wfOut( "ok\n" );
+       } else {
+               wfOut( "...$index doesn't exist.\n" );
        }
 }
 
 function do_interwiki_update() {
        # Check that interwiki table exists; if it doesn't source it
        global $wgDatabase, $IP;
-       if( $wgDatabase->tableExists( "interwiki" ) ) {
-               echo "...already have interwiki table\n";
+       if ( $wgDatabase->tableExists( "interwiki" ) ) {
+               wfOut( "...already have interwiki table\n" );
                return true;
        }
-       echo "Creating interwiki table: ";
-       dbsource( archive("patch-interwiki.sql") );
-       echo "ok\n";
-       echo "Adding default interwiki definitions: ";
-       dbsource( "$IP/maintenance/interwiki.sql" );
-       echo "ok\n";
+       wfOut( "Creating interwiki table: " );
+       $wgDatabase->sourceFile( archive( "patch-interwiki.sql" ) );
+       wfOut( "ok\n" );
+       wfOut( "Adding default interwiki definitions: " );
+       $wgDatabase->sourceFile( "$IP/maintenance/interwiki.sql" );
+       wfOut( "ok\n" );
 }
 
 function do_index_update() {
        # Check that proper indexes are in place
        global $wgDatabase;
        $meta = $wgDatabase->fieldInfo( "recentchanges", "rc_timestamp" );
-       if( !$meta->isMultipleKey() ) {
-               echo "Updating indexes to 20031107: ";
-               dbsource( archive("patch-indexes.sql") );
-               echo "ok\n";
+       if ( !$meta->isMultipleKey() ) {
+               wfOut( "Updating indexes to 20031107: " );
+               $wgDatabase->sourceFile( archive( "patch-indexes.sql" ) );
+               wfOut( "ok\n" );
                return true;
        }
-       echo "...indexes seem up to 20031107 standards\n";
+       wfOut( "...indexes seem up to 20031107 standards\n" );
        return false;
 }
 
@@ -304,149 +172,147 @@ function do_image_index_update() {
        global $wgDatabase;
 
        $meta = $wgDatabase->fieldInfo( "image", "img_major_mime" );
-       if( !$meta->isMultipleKey() ) {
-               echo "Updating indexes to 20050912: ";
-               dbsource( archive("patch-mimesearch-indexes.sql") );
-               echo "ok\n";
+       if ( !$meta->isMultipleKey() ) {
+               wfOut( "Updating indexes to 20050912: " );
+               $wgDatabase->sourceFile( archive( "patch-mimesearch-indexes.sql" ) );
+               wfOut( "ok\n" );
                return true;
        }
-       echo "...indexes seem up to 20050912 standards\n";
+       wfOut( "...indexes seem up to 20050912 standards\n" );
        return false;
 }
 
 function do_image_name_unique_update() {
        global $wgDatabase;
-       if( $wgDatabase->indexExists( 'image', 'PRIMARY' ) ) {
-               echo "...image primary key already set.\n";
+       if ( $wgDatabase->indexExists( 'image', 'PRIMARY' ) ) {
+               wfOut( "...image primary key already set.\n" );
        } else {
-               echo "Making img_name the primary key... ";
-               dbsource( archive("patch-image_name_primary.sql"), $wgDatabase );
-               echo "ok\n";
+               wfOut( "Making img_name the primary key... " );
+               $wgDatabase->sourceFile( archive( "patch-image_name_primary.sql" ) );
+               wfOut( "ok\n" );
        }
 }
 
 function do_logging_timestamp_index() {
        global $wgDatabase;
-       if( $wgDatabase->indexExists( 'logging', 'times' ) ) {
-               echo "...timestamp key on logging already exists.\n";
+       if ( $wgDatabase->indexExists( 'logging', 'times' ) ) {
+               wfOut( "...timestamp key on logging already exists.\n" );
        } else {
-               echo "Adding timestamp key on logging table... ";
-               dbsource( archive("patch-logging-times-index.sql"), $wgDatabase );
-               echo "ok\n";
+               wfOut( "Adding timestamp key on logging table... " );
+               $wgDatabase->sourceFile( archive( "patch-logging-times-index.sql" ) );
+               wfOut( "ok\n" );
        }
 }
 
 function do_archive_user_index() {
        global $wgDatabase;
-       if( $wgDatabase->indexExists( 'archive', 'usertext_timestamp' ) ) {
-               echo "...usertext,timestamp key on archive already exists.\n";
+       if ( $wgDatabase->indexExists( 'archive', 'usertext_timestamp' ) ) {
+               wfOut( "...usertext,timestamp key on archive already exists.\n" );
        } else {
-               echo "Adding usertext,timestamp key on archive table... ";
-               dbsource( archive("patch-archive-user-index.sql"), $wgDatabase );
-               echo "ok\n";
+               wfOut( "Adding usertext,timestamp key on archive table... " );
+               $wgDatabase->sourceFile( archive( "patch-archive-user-index.sql" ) );
+               wfOut( "ok\n" );
        }
 }
 
 function do_image_user_index() {
        global $wgDatabase;
-       if( $wgDatabase->indexExists( 'image', 'img_usertext_timestamp' ) ) {
-               echo "...usertext,timestamp key on image already exists.\n";
+       if ( $wgDatabase->indexExists( 'image', 'img_usertext_timestamp' ) ) {
+               wfOut( "...usertext,timestamp key on image already exists.\n" );
        } else {
-               echo "Adding usertext,timestamp key on image table... ";
-               dbsource( archive("patch-image-user-index.sql"), $wgDatabase );
-               echo "ok\n";
+               wfOut( "Adding usertext,timestamp key on image table... " );
+               $wgDatabase->sourceFile( archive( "patch-image-user-index.sql" ) );
+               wfOut( "ok\n" );
        }
 }
 
 function do_oldimage_user_index() {
        global $wgDatabase;
-       if( $wgDatabase->indexExists( 'oldimage', 'oi_usertext_timestamp' ) ) {
-               echo "...usertext,timestamp key on oldimage already exists.\n";
+       if ( $wgDatabase->indexExists( 'oldimage', 'oi_usertext_timestamp' ) ) {
+               wfOut( "...usertext,timestamp key on oldimage already exists.\n" );
        } else {
-               echo "Adding usertext,timestamp key on oldimage table... ";
-               dbsource( archive("patch-oldimage-user-index.sql"), $wgDatabase );
-               echo "ok\n";
+               wfOut( "Adding usertext,timestamp key on oldimage table... " );
+               $wgDatabase->sourceFile( archive( "patch-oldimage-user-index.sql" ) );
+               wfOut( "ok\n" );
        }
 }
 
 function do_watchlist_update() {
        global $wgDatabase;
        $fname = 'do_watchlist_update';
-       if( $wgDatabase->fieldExists( 'watchlist', 'wl_notificationtimestamp' ) ) {
-               echo "The watchlist table is already set up for email notification.\n";
+       if ( $wgDatabase->fieldExists( 'watchlist', 'wl_notificationtimestamp' ) ) {
+               wfOut( "...the watchlist table is already set up for email notification.\n" );
        } else {
-               echo "Adding wl_notificationtimestamp field for email notification management.";
+               wfOut( "Adding wl_notificationtimestamp field for email notification management." );
                /* ALTER TABLE watchlist ADD (wl_notificationtimestamp varchar(14) binary NOT NULL default '0'); */
-               dbsource( archive( 'patch-email-notification.sql' ), $wgDatabase );
-               echo "ok\n";
+               $wgDatabase->sourceFile( archive( 'patch-email-notification.sql' ) );
+               wfOut( "ok\n" );
        }
        # Check if we need to add talk page rows to the watchlist
        $talk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'wl_namespace & 1', $fname );
        $nontalk = $wgDatabase->selectField( 'watchlist', 'count(*)', 'NOT (wl_namespace & 1)', $fname );
        if ( $talk != $nontalk ) {
-               echo "Adding missing watchlist talk page rows... ";
+               wfOut( "Adding missing watchlist talk page rows... " );
                flush();
 
-               $wgDatabase->insertSelect( 'watchlist', 'watchlist', 
+               $wgDatabase->insertSelect( 'watchlist', 'watchlist',
                        array(
                                'wl_user' => 'wl_user',
                                'wl_namespace' => 'wl_namespace | 1',
                                'wl_title' => 'wl_title',
                                'wl_notificationtimestamp' => 'wl_notificationtimestamp'
                        ), array( 'NOT (wl_namespace & 1)' ), $fname, 'IGNORE' );
-               echo "ok\n";
+               wfOut( "ok\n" );
        } else {
-               echo "...watchlist talk page rows already present\n";
+               wfOut( "...watchlist talk page rows already present\n" );
        }
 }
 
 function do_copy_newtalk_to_watchlist() {
        global $wgDatabase;
-       global $wgCommandLineMode;      # this needs to be saved while getID() and getName() are called
 
        $res = $wgDatabase->safeQuery( 'SELECT user_id, user_ip FROM !',
                $wgDatabase->tableName( 'user_newtalk' ) );
-       $num_newtalks=$wgDatabase->numRows($res);
-       echo "Now converting ".$num_newtalks." user_newtalk entries to watchlist table entries ... \n";
+       $num_newtalks = $wgDatabase->numRows( $res );
+       wfOut( "Now converting $num_newtalks user_newtalk entries to watchlist table entries ... \n" );
 
        $user = new User();
        for ( $i = 1; $i <= $num_newtalks; $i++ ) {
                $wluser = $wgDatabase->fetchObject( $res );
-               if ($wluser->user_id == 0) { # anonymous users ... have IP numbers as "names"
-                       if ($user->isIP($wluser->user_ip)) { # do only if it really looks like an IP number (double checked)
+               if ( $wluser->user_id == 0 ) { # anonymous users ... have IP numbers as "names"
+                       if ( $user->isIP( $wluser->user_ip ) ) { # do only if it really looks like an IP number (double checked)
                                $wgDatabase->replace( 'watchlist',
-                                       array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
-                                         array('wl_user'                       => 0,
-                                               'wl_namespace'                  => NS_USER_TALK,
-                                               'wl_title'                      => $wluser->user_ip,
-                                               'wl_notificationtimestamp'      => '19700101000000'
+                                       array( array( 'wl_user', 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ) ),
+                                       array( 'wl_user' => 0,
+                                               'wl_namespace' => NS_USER_TALK,
+                                               'wl_title' => $wluser->user_ip,
+                                               'wl_notificationtimestamp' => '19700101000000'
                                                ), 'updaters.inc::do_watchlist_update2'
                                        );
                        }
                } else { # normal users ... have user_ids
-                       $user->setID($wluser->user_id);
+                       $user->setID( $wluser->user_id );
                        $wgDatabase->replace( 'watchlist',
-                               array(array('wl_user','wl_namespace', 'wl_title', 'wl_notificationtimestamp' )),
-                                 array('wl_user'                       => $user->getID(),
-                                       'wl_namespace'                  => NS_USER_TALK,
-                                       'wl_title'                      => $user->getName(),
-                                       'wl_notificationtimestamp'      => '19700101000000'
+                               array( array( 'wl_user', 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ) ),
+                               array( 'wl_user' => $user->getID(),
+                                       'wl_namespace' => NS_USER_TALK,
+                                       'wl_title' => $user->getName(),
+                                       'wl_notificationtimestamp' => '19700101000000'
                                        ), 'updaters.inc::do_watchlist_update3'
                                );
                }
        }
-       echo "Done.\n";
+       wfOut( "Done.\n" );
 }
 
-
 function do_user_update() {
        global $wgDatabase;
-       if( $wgDatabase->fieldExists( 'user', 'user_emailauthenticationtimestamp' ) ) {
-               echo "User table contains old email authentication field. Dropping... ";
-               dbsource( archive( 'patch-email-authentication.sql' ), $wgDatabase );
-               echo "ok\n";
+       if ( $wgDatabase->fieldExists( 'user', 'user_emailauthenticationtimestamp' ) ) {
+               wfOut( "User table contains old email authentication field. Dropping... " );
+               $wgDatabase->sourceFile( archive( 'patch-email-authentication.sql' ) );
+               wfOut( "ok\n" );
        } else {
-               echo "...user table does not contain old email authentication field.\n";
+               wfOut( "...user table does not contain old email authentication field.\n" );
        }
 }
 
@@ -456,47 +322,47 @@ function do_user_update() {
  */
 function check_bin( $table, $field, $patchFile ) {
        global $wgDatabase, $wgDBtype;
-       if ($wgDBtype != 'mysql')
+       if ( $wgDBtype != 'mysql' )
                return;
        $tableName = $wgDatabase->tableName( $table );
        $res = $wgDatabase->query( "SELECT $field FROM $tableName LIMIT 0" );
        $flags = explode( ' ', mysql_field_flags( $res->result, 0 ) );
        $wgDatabase->freeResult( $res );
 
-       if( in_array( 'binary', $flags ) ) {
-               echo "$table table has correct $field encoding.\n";
+       if ( in_array( 'binary', $flags ) ) {
+               wfOut( "...$table table has correct $field encoding.\n" );
        } else {
-               echo "Fixing $field encoding on $table table... ";
-               dbsource( archive( $patchFile ), $wgDatabase );
-               echo "ok\n";
+               wfOut( "Fixing $field encoding on $table table... " );
+               $wgDatabase->sourceFile( archive( $patchFile ) );
+               wfOut( "ok\n" );
        }
 }
 
 function do_schema_restructuring() {
        global $wgDatabase;
-       $fname="do_schema_restructuring";
+       $fname = "do_schema_restructuring";
        if ( $wgDatabase->tableExists( 'page' ) ) {
-               echo "...page table already exists.\n";
+               wfOut( "...page table already exists.\n" );
        } else {
-               echo "...converting from cur/old to page/revision/text DB structure.\n"; flush();
-               echo wfTimestamp( TS_DB );
-               echo "......checking for duplicate entries.\n"; flush();
+               wfOut( "...converting from cur/old to page/revision/text DB structure.\n" );
+               wfOut( wfTimestamp( TS_DB ) );
+               wfOut( "......checking for duplicate entries.\n" );
 
-               list ($cur, $old, $page, $revision, $text) = $wgDatabase->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
+               list ( $cur, $old, $page, $revision, $text ) = $wgDatabase->tableNamesN( 'cur', 'old', 'page', 'revision', 'text' );
 
                $rows = $wgDatabase->query( "SELECT cur_title, cur_namespace, COUNT(cur_namespace) AS c
                                FROM $cur GROUP BY cur_title, cur_namespace HAVING c>1", $fname );
 
                if ( $wgDatabase->numRows( $rows ) > 0 ) {
-                       echo wfTimestamp( TS_DB );
-                       echo "......<b>Found duplicate entries</b>\n";
-                       echo ( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
+                       wfOut( wfTimestamp( TS_DB ) );
+                       wfOut( "......<b>Found duplicate entries</b>\n" );
+                       wfOut( sprintf( "<b>      %-60s %3s %5s</b>\n", 'Title', 'NS', 'Count' ) );
                        while ( $row = $wgDatabase->fetchObject( $rows ) ) {
                                if ( ! isset( $duplicate[$row->cur_namespace] ) ) {
                                        $duplicate[$row->cur_namespace] = array();
                                }
                                $duplicate[$row->cur_namespace][] = $row->cur_title;
-                               echo ( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
+                               wfOut( sprintf( "      %-60s %3s %5s\n", $row->cur_title, $row->cur_namespace, $row->c ) );
                        }
                        $sql = "SELECT cur_title, cur_namespace, cur_id, cur_timestamp FROM $cur WHERE ";
                        $firstCond = true;
@@ -536,127 +402,127 @@ function do_schema_restructuring() {
                        }
                        $sql = "DELETE FROM $cur WHERE cur_id IN ( " . join( ',', $deleteId ) . ')';
                        $rows = $wgDatabase->query( $sql, $fname );
-                       echo wfTimestamp( TS_DB );
-                       echo "......<b>Deleted</b> ".$wgDatabase->affectedRows()." records.\n";
+                       wfOut( wfTimestamp( TS_DB ) );
+                       wfOut( "......<b>Deleted</b> " . $wgDatabase->affectedRows() . " records.\n" );
                }
 
 
-               echo wfTimestamp( TS_DB );
-               echo "......Creating tables.\n";
-               $wgDatabase->query("CREATE TABLE $page (
-                       page_id int(8) unsigned NOT NULL auto_increment,
-                       page_namespace int NOT NULL,
-                       page_title varchar(255) binary NOT NULL,
-                       page_restrictions tinyblob NOT NULL,
-                       page_counter bigint(20) unsigned NOT NULL default '0',
-                       page_is_redirect tinyint(1) unsigned NOT NULL default '0',
-                       page_is_new tinyint(1) unsigned NOT NULL default '0',
-                       page_random real unsigned NOT NULL,
-                       page_touched char(14) binary NOT NULL default '',
-                       page_latest int(8) unsigned NOT NULL,
-                       page_len int(8) unsigned NOT NULL,
-
-                       PRIMARY KEY page_id (page_id),
-                       UNIQUE INDEX name_title (page_namespace,page_title),
-                       INDEX (page_random),
-                       INDEX (page_len)
+               wfOut( wfTimestamp( TS_DB ) );
+               wfOut( "......Creating tables.\n" );
+               $wgDatabase->query( "CREATE TABLE $page (
+                       page_id int(8) unsigned NOT NULL auto_increment,
+                       page_namespace int NOT NULL,
+                       page_title varchar(255) binary NOT NULL,
+                       page_restrictions tinyblob NOT NULL,
+                       page_counter bigint(20) unsigned NOT NULL default '0',
+                       page_is_redirect tinyint(1) unsigned NOT NULL default '0',
+                       page_is_new tinyint(1) unsigned NOT NULL default '0',
+                       page_random real unsigned NOT NULL,
+                       page_touched char(14) binary NOT NULL default '',
+                       page_latest int(8) unsigned NOT NULL,
+                       page_len int(8) unsigned NOT NULL,
+
+                       PRIMARY KEY page_id (page_id),
+                       UNIQUE INDEX name_title (page_namespace,page_title),
+                       INDEX (page_random),
+                       INDEX (page_len)
                        ) ENGINE=InnoDB", $fname );
-               $wgDatabase->query("CREATE TABLE $revision (
-                       rev_id int(8) unsigned NOT NULL auto_increment,
-                       rev_page int(8) unsigned NOT NULL,
-                       rev_comment tinyblob NOT NULL,
-                       rev_user int(5) unsigned NOT NULL default '0',
-                       rev_user_text varchar(255) binary NOT NULL default '',
-                       rev_timestamp char(14) binary NOT NULL default '',
-                       rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
+               $wgDatabase->query( "CREATE TABLE $revision (
+                       rev_id int(8) unsigned NOT NULL auto_increment,
+                       rev_page int(8) unsigned NOT NULL,
+                       rev_comment tinyblob NOT NULL,
+                       rev_user int(5) unsigned NOT NULL default '0',
+                       rev_user_text varchar(255) binary NOT NULL default '',
+                       rev_timestamp char(14) binary NOT NULL default '',
+                       rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
                        rev_deleted tinyint(1) unsigned NOT NULL default '0',
                        rev_len int(8) unsigned,
                        rev_parent_id int(8) unsigned default NULL,
-                       PRIMARY KEY rev_page_id (rev_page, rev_id),
-                       UNIQUE INDEX rev_id (rev_id),
-                       INDEX rev_timestamp (rev_timestamp),
-                       INDEX page_timestamp (rev_page,rev_timestamp),
-                       INDEX user_timestamp (rev_user,rev_timestamp),
-                       INDEX usertext_timestamp (rev_user_text,rev_timestamp)
+                       PRIMARY KEY rev_page_id (rev_page, rev_id),
+                       UNIQUE INDEX rev_id (rev_id),
+                       INDEX rev_timestamp (rev_timestamp),
+                       INDEX page_timestamp (rev_page,rev_timestamp),
+                       INDEX user_timestamp (rev_user,rev_timestamp),
+                       INDEX usertext_timestamp (rev_user_text,rev_timestamp)
                        ) ENGINE=InnoDB", $fname );
 
-               echo wfTimestamp( TS_DB );
-               echo "......Locking tables.\n";
+               wfOut( wfTimestamp( TS_DB ) );
+               wfOut( "......Locking tables.\n" );
                $wgDatabase->query( "LOCK TABLES $page WRITE, $revision WRITE, $old WRITE, $cur WRITE", $fname );
 
                $maxold = intval( $wgDatabase->selectField( 'old', 'max(old_id)', '', $fname ) );
-               echo wfTimestamp( TS_DB );
-               echo "......maxold is {$maxold}\n";
+               wfOut( wfTimestamp( TS_DB ) );
+               wfOut( "......maxold is {$maxold}\n" );
 
-               echo wfTimestamp( TS_DB );
+               wfOut( wfTimestamp( TS_DB ) );
                global $wgLegacySchemaConversion;
-               if( $wgLegacySchemaConversion ) {
+               if ( $wgLegacySchemaConversion ) {
                        // Create HistoryBlobCurStub entries.
                        // Text will be pulled from the leftover 'cur' table at runtime.
-                       echo "......Moving metadata from cur; using blob references to text in cur table.\n";
+                       wfOut( "......Moving metadata from cur; using blob references to text in cur table.\n" );
                        $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
                        $cur_flags = "'object'";
                } else {
                        // Copy all cur text in immediately: this may take longer but avoids
                        // having to keep an extra table around.
-                       echo "......Moving text from cur.\n";
+                       wfOut( "......Moving text from cur.\n" );
                        $cur_text = 'cur_text';
                        $cur_flags = "''";
                }
                $wgDatabase->query( "INSERT INTO $old (old_namespace, old_title, old_text, old_comment, old_user, old_user_text,
-                               old_timestamp, old_minor_edit, old_flags)
-                       SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
-                       FROM $cur", $fname );
+                                       old_timestamp, old_minor_edit, old_flags)
+                       SELECT cur_namespace, cur_title, $cur_text, cur_comment, cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags
+                       FROM $cur", $fname );
 
-               echo wfTimestamp( TS_DB );
-               echo "......Setting up revision table.\n";
+               wfOut( wfTimestamp( TS_DB ) );
+               wfOut( "......Setting up revision table.\n" );
                $wgDatabase->query( "INSERT INTO $revision (rev_id, rev_page, rev_comment, rev_user, rev_user_text, rev_timestamp,
-                               rev_minor_edit)
+                               rev_minor_edit)
                        SELECT old_id, cur_id, old_comment, old_user, old_user_text,
-                               old_timestamp, old_minor_edit
+                               old_timestamp, old_minor_edit
                        FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title", $fname );
 
-               echo wfTimestamp( TS_DB );
-               echo "......Setting up page table.\n";
+               wfOut( wfTimestamp( TS_DB ) );
+               wfOut( "......Setting up page table.\n" );
                $wgDatabase->query( "INSERT INTO $page (page_id, page_namespace, page_title, page_restrictions, page_counter,
-                               page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
-                       SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
-                               cur_random, cur_touched, rev_id, LENGTH(cur_text)
-                       FROM $cur,$revision
-                       WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", $fname );
-
-               echo wfTimestamp( TS_DB );
-               echo "......Unlocking tables.\n";
+                       page_is_redirect, page_is_new, page_random, page_touched, page_latest, page_len)
+                       SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
+                               cur_random, cur_touched, rev_id, LENGTH(cur_text)
+                       FROM $cur,$revision
+                       WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}", $fname );
+
+               wfOut( wfTimestamp( TS_DB ) );
+               wfOut( "......Unlocking tables.\n" );
                $wgDatabase->query( "UNLOCK TABLES", $fname );
 
-               echo wfTimestamp( TS_DB );
-               echo "......Renaming old.\n";
+               wfOut( wfTimestamp( TS_DB ) );
+               wfOut( "......Renaming old.\n" );
                $wgDatabase->query( "ALTER TABLE $old RENAME TO $text", $fname );
 
-               echo wfTimestamp( TS_DB );
-               echo "...done.\n";
+               wfOut( wfTimestamp( TS_DB ) );
+               wfOut( "...done.\n" );
        }
 }
 
 function do_inverse_timestamp() {
        global $wgDatabase;
-       if( $wgDatabase->fieldExists( 'revision', 'inverse_timestamp' ) ) {
-               echo "Removing revision.inverse_timestamp and fixing indexes... ";
-               dbsource( archive( 'patch-inverse_timestamp.sql' ), $wgDatabase );
-               echo "ok\n";
+       if ( $wgDatabase->fieldExists( 'revision', 'inverse_timestamp' ) ) {
+               wfOut( "Removing revision.inverse_timestamp and fixing indexes... " );
+               $wgDatabase->sourceFile( archive( 'patch-inverse_timestamp.sql' ) );
+               wfOut( "ok\n" );
        } else {
-               echo "revision timestamp indexes already up to 2005-03-13\n";
+               wfOut( "...revision timestamp indexes already up to 2005-03-13\n" );
        }
 }
 
 function do_text_id() {
        global $wgDatabase;
-       if( $wgDatabase->fieldExists( 'revision', 'rev_text_id' ) ) {
-               echo "...rev_text_id already in place.\n";
+       if ( $wgDatabase->fieldExists( 'revision', 'rev_text_id' ) ) {
+               wfOut( "...rev_text_id already in place.\n" );
        } else {
-               echo "Adding rev_text_id field... ";
-               dbsource( archive( 'patch-rev_text_id.sql' ), $wgDatabase );
-               echo "ok\n";
+               wfOut( "Adding rev_text_id field... " );
+               $wgDatabase->sourceFile( archive( 'patch-rev_text_id.sql' ) );
+               wfOut( "ok\n" );
        }
 }
 
@@ -669,7 +535,7 @@ function do_namespace_size() {
                'querycache'    => 'qc',
                'logging'       => 'log',
        );
-       foreach( $tables as $table => $prefix ) {
+       foreach ( $tables as $table => $prefix ) {
                do_namespace_size_on( $table, $prefix );
                flush();
        }
@@ -677,7 +543,7 @@ function do_namespace_size() {
 
 function do_namespace_size_on( $table, $prefix ) {
        global $wgDatabase, $wgDBtype;
-       if ($wgDBtype != 'mysql')
+       if ( $wgDBtype != 'mysql' )
                return;
        $field = $prefix . '_namespace';
 
@@ -686,31 +552,31 @@ function do_namespace_size_on( $table, $prefix ) {
        $info = $wgDatabase->fetchObject( $result );
        $wgDatabase->freeResult( $result );
 
-       if( substr( $info->Type, 0, 3 ) == 'int' ) {
-               echo "...$field is already a full int ($info->Type).\n";
+       if ( substr( $info->Type, 0, 3 ) == 'int' ) {
+               wfOut( "...$field is already a full int ($info->Type).\n" );
        } else {
-               echo "Promoting $field from $info->Type to int... ";
+               wfOut( "Promoting $field from $info->Type to int... " );
 
                $sql = "ALTER TABLE $tablename MODIFY $field int NOT NULL";
                $wgDatabase->query( $sql );
 
-               echo "ok\n";
+               wfOut( "ok\n" );
        }
 }
 
 function do_pagelinks_update() {
        global $wgDatabase;
-       if( $wgDatabase->tableExists( 'pagelinks' ) ) {
-               echo "...already have pagelinks table.\n";
+       if ( $wgDatabase->tableExists( 'pagelinks' ) ) {
+               wfOut( "...already have pagelinks table.\n" );
        } else {
-               echo "Converting links and brokenlinks tables to pagelinks... ";
-               dbsource( archive( 'patch-pagelinks.sql' ), $wgDatabase );
-               echo "ok\n";
+               wfOut( "Converting links and brokenlinks tables to pagelinks... " );
+               $wgDatabase->sourceFile( archive( 'patch-pagelinks.sql' ) );
+               wfOut( "ok\n" );
                flush();
 
                global $wgCanonicalNamespaceNames;
-               foreach( $wgCanonicalNamespaceNames as $ns => $name ) {
-                       if( $ns != 0 ) {
+               foreach ( $wgCanonicalNamespaceNames as $ns => $name ) {
+                       if ( $ns != 0 ) {
                                do_pagelinks_namespace( $ns );
                        }
                }
@@ -721,12 +587,12 @@ function do_pagelinks_namespace( $namespace ) {
        global $wgDatabase, $wgContLang;
 
        $ns = intval( $namespace );
-       echo "Cleaning up broken links for namespace $ns... ";
+       wfOut( "Cleaning up broken links for namespace $ns... " );
 
        $pagelinks = $wgDatabase->tableName( 'pagelinks' );
        $name = $wgContLang->getNsText( $ns );
        $prefix = $wgDatabase->strencode( $name );
-       $likeprefix = str_replace( '_', '\\_', $prefix);
+       $likeprefix = str_replace( '_', '\\_', $prefix );
 
        $sql = "UPDATE $pagelinks
                   SET pl_namespace=$ns,
@@ -735,42 +601,55 @@ function do_pagelinks_namespace( $namespace ) {
                   AND pl_title LIKE '$likeprefix:%'";
 
        $wgDatabase->query( $sql, 'do_pagelinks_namespace' );
-       echo "ok\n";
+       wfOut( "ok\n" );
 }
 
 function do_drop_img_type() {
        global $wgDatabase;
 
-       if( $wgDatabase->fieldExists( 'image', 'img_type' ) ) {
-               echo "Dropping unused img_type field in image table... ";
-               dbsource( archive( 'patch-drop_img_type.sql' ), $wgDatabase );
-               echo "ok\n";
+       if ( $wgDatabase->fieldExists( 'image', 'img_type' ) ) {
+               wfOut( "Dropping unused img_type field in image table... " );
+               $wgDatabase->sourceFile( archive( 'patch-drop_img_type.sql' ) );
+               wfOut( "ok\n" );
        } else {
-               echo "No img_type field in image table; Good.\n";
+               wfOut( "...no img_type field in image table; Good.\n" );
        }
 }
 
 function do_old_links_update() {
        global $wgDatabase;
-       if( $wgDatabase->tableExists( 'pagelinks' ) ) {
-               echo "Already have pagelinks; skipping old links table updates.\n";
+       if ( $wgDatabase->tableExists( 'pagelinks' ) ) {
+               wfOut( "...have pagelinks; skipping old links table updates.\n" );
        } else {
                convertLinks(); flush();
        }
 }
 
+function fix_ancient_imagelinks() {
+       global $wgDatabase;
+       $info = $wgDatabase->fieldInfo( 'imagelinks', 'il_from' );
+       if ( $info && $info->type() === 'string' ) {
+               wfOut( "Fixing ancient broken imagelinks table.\n" );
+               wfOut( "NOTE: you will have to run maintenance/refreshLinks.php after this.\n" );
+               $wgDatabase->sourceFile( archive( 'patch-fix-il_from.sql' ) );
+               wfOut( "ok\n" );
+       } else {
+               wfOut( "...il_from OK\n" );
+       }
+}
+
 function do_user_unique_update() {
        global $wgDatabase;
        $duper = new UserDupes( $wgDatabase );
-       if( $duper->hasUniqueIndex() ) {
-               echo "Already have unique user_name index.\n";
+       if ( $duper->hasUniqueIndex() ) {
+               wfOut( "...already have unique user_name index.\n" );
        } else {
-               if( !$duper->clearDupes() ) {
-                       echo "WARNING: This next step will probably fail due to unfixed duplicates...\n";
+               if ( !$duper->clearDupes() ) {
+                       wfOut( "WARNING: This next step will probably fail due to unfixed duplicates...\n" );
                }
-               echo "Adding unique index on user_name... ";
-               dbsource( archive( 'patch-user_nameindex.sql' ), $wgDatabase );
-               echo "ok\n";
+               wfOut( "Adding unique index on user_name... " );
+               $wgDatabase->sourceFile( archive( 'patch-user_nameindex.sql' ) );
+               wfOut( "ok\n" );
        }
 }
 
@@ -778,40 +657,40 @@ function do_user_groups_update() {
        $fname = 'do_user_groups_update';
        global $wgDatabase;
 
-       if( $wgDatabase->tableExists( 'user_groups' ) ) {
-               echo "...user_groups table already exists.\n";
+       if ( $wgDatabase->tableExists( 'user_groups' ) ) {
+               wfOut( "...user_groups table already exists.\n" );
                return do_user_groups_reformat();
        }
 
-       echo "Adding user_groups table... ";
-       dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
-       echo "ok\n";
+       wfOut( "Adding user_groups table... " );
+       $wgDatabase->sourceFile( archive( 'patch-user_groups.sql' ) );
+       wfOut( "ok\n" );
 
-       if( !$wgDatabase->tableExists( 'user_rights' ) ) {
-               if( $wgDatabase->fieldExists( 'user', 'user_rights' ) ) {
-                       echo "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion...";
-                       dbsource( archive( 'patch-user_rights.sql' ), $wgDatabase );
-                       echo "ok\n";
+       if ( !$wgDatabase->tableExists( 'user_rights' ) ) {
+               if ( $wgDatabase->fieldExists( 'user', 'user_rights' ) ) {
+                       wfOut( "Upgrading from a 1.3 or older database? Breaking out user_rights for conversion..." );
+                       $wgDatabase->sourceFile( archive( 'patch-user_rights.sql' ) );
+                       wfOut( "ok\n" );
                } else {
-                       echo "*** WARNING: couldn't locate user_rights table or field for upgrade.\n";
-                       echo "*** You may need to manually configure some sysops by manipulating\n";
-                       echo "*** the user_groups table.\n";
+                       wfOut( "*** WARNING: couldn't locate user_rights table or field for upgrade.\n" );
+                       wfOut( "*** You may need to manually configure some sysops by manipulating\n" );
+                       wfOut( "*** the user_groups table.\n" );
                        return;
                }
        }
 
-       echo "Converting user_rights table to user_groups... ";
+       wfOut( "Converting user_rights table to user_groups... " );
        $result = $wgDatabase->select( 'user_rights',
                array( 'ur_user', 'ur_rights' ),
                array( "ur_rights != ''" ),
                $fname );
 
-       while( $row = $wgDatabase->fetchObject( $result ) ) {
+       while ( $row = $wgDatabase->fetchObject( $result ) ) {
                $groups = array_unique(
                        array_map( 'trim',
                                explode( ',', $row->ur_rights ) ) );
 
-               foreach( $groups as $group ) {
+               foreach ( $groups as $group ) {
                        $wgDatabase->insert( 'user_groups',
                                array(
                                        'ug_user'  => $row->ur_user,
@@ -820,7 +699,7 @@ function do_user_groups_update() {
                }
        }
        $wgDatabase->freeResult( $result );
-       echo "ok\n";
+       wfOut( "ok\n" );
 }
 
 function do_user_groups_reformat() {
@@ -828,23 +707,23 @@ function do_user_groups_reformat() {
        global $wgDatabase;
        $info = $wgDatabase->fieldInfo( 'user_groups', 'ug_group' );
 
-       if( $info->type() == 'int' ) {
+       if ( $info->type() == 'int' ) {
                $oldug = $wgDatabase->tableName( 'user_groups' );
                $newug = $wgDatabase->tableName( 'user_groups_bogus' );
-               echo "user_groups is in bogus intermediate format. Renaming to $newug... ";
+               wfOut( "user_groups is in bogus intermediate format. Renaming to $newug... " );
                $wgDatabase->query( "ALTER TABLE $oldug RENAME TO $newug" );
-               echo "ok\n";
+               wfOut( "ok\n" );
 
-               echo "Re-adding fresh user_groups table... ";
-               dbsource( archive( 'patch-user_groups.sql' ), $wgDatabase );
-               echo "ok\n";
+               wfOut( "Re-adding fresh user_groups table... " );
+               $wgDatabase->sourceFile( archive( 'patch-user_groups.sql' ) );
+               wfOut( "ok\n" );
 
-               echo "***\n";
-               echo "*** WARNING: You will need to manually fix up user permissions in the user_groups\n";
-               echo "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n";
-               echo "***\n";
+               wfOut( "***\n" );
+               wfOut( "*** WARNING: You will need to manually fix up user permissions in the user_groups\n" );
+               wfOut( "*** table. Old 1.5 alpha versions did some pretty funky stuff...\n" );
+               wfOut( "***\n" );
        } else {
-               echo "...user_groups is in current format.\n";
+               wfOut( "...user_groups is in current format.\n" );
        }
 
 }
@@ -855,12 +734,12 @@ function do_watchlist_null() {
        global $wgDatabase;
        $info = $wgDatabase->fieldInfo( 'watchlist', 'wl_notificationtimestamp' );
 
-       if( !$info->nullable() ) {
-               echo "Making wl_notificationtimestamp nullable... ";
-               dbsource( archive( 'patch-watchlist-null.sql' ), $wgDatabase );
-               echo "ok\n";
+       if ( !$info->nullable() ) {
+               wfOut( "Making wl_notificationtimestamp nullable... " );
+               $wgDatabase->sourceFile( archive( 'patch-watchlist-null.sql' ) );
+               wfOut( "ok\n" );
        } else {
-               echo "...wl_notificationtimestamp is already nullable.\n";
+               wfOut( "...wl_notificationtimestamp is already nullable.\n" );
        }
 
 }
@@ -871,33 +750,33 @@ function do_watchlist_null() {
 function do_page_random_update() {
        global $wgDatabase;
 
-       echo "Setting page_random to a random value on rows where it equals 0...";
+       wfOut( "Setting page_random to a random value on rows where it equals 0..." );
 
        $page = $wgDatabase->tableName( 'page' );
        $wgDatabase->query( "UPDATE $page SET page_random = RAND() WHERE page_random = 0", 'do_page_random_update' );
        $rows = $wgDatabase->affectedRows();
 
-       echo "changed $rows rows\n";
+       wfOut( "changed $rows rows\n" );
 }
 
 function do_templatelinks_update() {
-       global $wgDatabase, $wgLoadBalancer;
+       global $wgDatabase;
        $fname = 'do_templatelinks_update';
 
        if ( $wgDatabase->tableExists( 'templatelinks' ) ) {
-               echo "...templatelinks table already exists\n";
+               wfOut( "...templatelinks table already exists\n" );
                return;
        }
-       echo "Creating templatelinks table...\n";
-       dbsource( archive('patch-templatelinks.sql'), $wgDatabase );
-       echo "Populating...\n";
-       if ( isset( $wgLoadBalancer ) && $wgLoadBalancer->getServerCount() > 1 ) {
+       wfOut( "Creating templatelinks table...\n" );
+       $wgDatabase->sourceFile( archive( 'patch-templatelinks.sql' ) );
+       wfOut( "Populating...\n" );
+       if ( wfGetLB()->getServerCount() > 1 ) {
                // Slow, replication-friendly update
                $res = $wgDatabase->select( 'pagelinks', array( 'pl_from', 'pl_namespace', 'pl_title' ),
                        array( 'pl_namespace' => NS_TEMPLATE ), $fname );
                $count = 0;
                while ( $row = $wgDatabase->fetchObject( $res ) ) {
-                       $count = ($count + 1) % 100;
+                       $count = ( $count + 1 ) % 100;
                        if ( $count == 0 ) {
                                if ( function_exists( 'wfWaitForSlaves' ) ) {
                                        wfWaitForSlaves( 10 );
@@ -927,76 +806,78 @@ function do_templatelinks_update() {
                        ), $fname
                );
        }
-       echo "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n";
+       wfOut( "Done. Please run maintenance/refreshLinks.php for a more thorough templatelinks update.\n" );
 }
 
 // Add index on ( rc_namespace, rc_user_text ) [Jul. 2006]
 // Add index on ( rc_user_text, rc_timestamp ) [Nov. 2006]
 function do_rc_indices_update() {
        global $wgDatabase;
-       echo( "Checking for additional recent changes indices...\n" );
+       wfOut( "Checking for additional recent changes indices...\n" );
 
        $indexes = array(
                'rc_ns_usertext' => 'patch-recentchanges-utindex.sql',
                'rc_user_text' => 'patch-rc_user_text-index.sql',
        );
-       
-       foreach( $indexes as $index => $patch ) {
+
+       foreach ( $indexes as $index => $patch ) {
                $info = $wgDatabase->indexInfo( 'recentchanges', $index, __METHOD__ );
-               if( !$info ) {
-                       echo( "...index `{$index}` not found; adding..." );
-                       dbsource( archive( $patch ) );
-                       echo( "done.\n" );
+               if ( !$info ) {
+                       wfOut( "...index `{$index}` not found; adding..." );
+                       $wgDatabase->sourceFile( archive( $patch ) );
+                       wfOut( "done.\n" );
                } else {
-                       echo( "...index `{$index}` seems ok.\n" );
+                       wfOut( "...index `{$index}` seems ok.\n" );
                }
        }
 }
 
-function index_has_field($table, $index, $field) {
+function index_has_field( $table, $index, $field ) {
        global $wgDatabase;
-       echo( "Checking if $table index $index includes field $field...\n" );
+       wfOut( "Checking if $table index $index includes field $field...\n" );
        $info = $wgDatabase->indexInfo( $table, $index, __METHOD__ );
-       if( $info ) {
-               foreach($info as $row) {
-                       if($row->Column_name == $field) {
-                               echo( "...index $index on table $table seems to be ok\n" );
+       if ( $info ) {
+               foreach ( $info as $row ) {
+                       if ( $row->Column_name == $field ) {
+                               wfOut( "...index $index on table $table seems to be ok\n" );
                                return true;
                        }
                }
        }
-       echo( "...index $index on table $table has no field $field; adding\n" );
+       wfOut( "...index $index on table $table has no field $field; adding\n" );
        return false;
 }
 
 function do_backlinking_indices_update() {
-       echo( "Checking for backlinking indices...\n" );
-       if (!index_has_field('pagelinks', 'pl_namespace', 'pl_from') ||
-               !index_has_field('templatelinks', 'tl_namespace', 'tl_from') ||
-               !index_has_field('imagelinks', 'il_to', 'il_from'))
-       {       
-               dbsource( archive( 'patch-backlinkindexes.sql' ) );
-               echo( "...backlinking indices updated\n" );
+       global $wgDatabase;
+       wfOut( "Checking for backlinking indices...\n" );
+       if ( !index_has_field( 'pagelinks', 'pl_namespace', 'pl_from' ) ||
+               !index_has_field( 'templatelinks', 'tl_namespace', 'tl_from' ) ||
+               !index_has_field( 'imagelinks', 'il_to', 'il_from' ) )
+       {
+               $wgDatabase->sourceFile( archive( 'patch-backlinkindexes.sql' ) );
+               wfOut( "...backlinking indices updated\n" );
        }
 }
 
 function do_categorylinks_indices_update() {
-       echo( "Checking for categorylinks indices...\n" );
-       if (!index_has_field('categorylinks', 'cl_sortkey', 'cl_from'))
-       {       
-               dbsource( archive( 'patch-categorylinksindex.sql' ) );
-               echo( "...categorylinks indices updated\n" );
+       global $wgDatabase;
+       wfOut( "Checking for categorylinks indices...\n" );
+       if ( !index_has_field( 'categorylinks', 'cl_sortkey', 'cl_from' ) )
+       {
+               $wgDatabase->sourceFile( archive( 'patch-categorylinksindex.sql' ) );
+               wfOut( "...categorylinks indices updated\n" );
        }
 }
 
 function do_filearchive_indices_update() {
        global $wgDatabase;
-       echo( "Checking filearchive indices...\n" );
+       wfOut( "Checking filearchive indices...\n" );
        $info = $wgDatabase->indexInfo( 'filearchive', 'fa_user_timestamp', __METHOD__ );
        if ( !$info )
-       {       
-               dbsource( archive( 'patch-filearhive-user-index.sql' ) );
-               echo( "...filearchive indices updated\n" );
+       {
+               $wgDatabase->sourceFile( archive( 'patch-filearchive-user-index.sql' ) );
+               wfOut( "...filearchive indices updated\n" );
        }
 }
 
@@ -1005,117 +886,90 @@ function maybe_do_profiling_memory_update() {
        if ( !$wgDatabase->tableExists( 'profiling' ) ) {
                // Simply ignore
        } elseif ( $wgDatabase->fieldExists( 'profiling', 'pf_memory' ) ) {
-               echo "profiling table has pf_memory field.\n";
+               wfOut( "...profiling table has pf_memory field.\n" );
        } else {
-               echo "Adding pf_memory field to table profiling...";
-               dbsource( archive( 'patch-profiling-memory.sql' ), $wgDatabase );
-               echo "ok\n";
+               wfOut( "Adding pf_memory field to table profiling..." );
+               $wgDatabase->sourceFile( archive( 'patch-profiling-memory.sql' ) );
+               wfOut( "ok\n" );
        }
 }
 
 function do_stats_init() {
        // Sometimes site_stats table is not properly populated.
        global $wgDatabase;
-       echo "Checking site_stats row...";
+       wfOut( "Checking site_stats row..." );
        $row = $wgDatabase->selectRow( 'site_stats', '*', array( 'ss_row_id' => 1 ), __METHOD__ );
-       if( $row === false ) {
-               echo "data is missing! rebuilding...\n";
+       if ( $row === false ) {
+               wfOut( "data is missing! rebuilding...\n" );
        } elseif ( isset( $row->site_stats ) && $row->ss_total_pages == -1 ) {
-               echo "missing ss_total_pages, rebuilding...\n";
+               wfOut( "missing ss_total_pages, rebuilding...\n" );
        } else {
-               echo "ok.\n";
+               wfOut( "ok.\n" );
                return;
        }
-
-       global $IP;
-       require_once "$IP/maintenance/initStats.inc";
-       wfInitStats();
+       SiteStatsInit::doAllAndCommit( false );
 }
 
 function do_active_users_init() {
        global $wgDatabase;
        $activeUsers = $wgDatabase->selectField( 'site_stats', 'ss_active_users', false, __METHOD__ );
-       if( $activeUsers == -1 ) {
-               $activeUsers = $wgDatabase->selectField( 'recentchanges', 
+       if ( $activeUsers == -1 ) {
+               $activeUsers = $wgDatabase->selectField( 'recentchanges',
                        'COUNT( DISTINCT rc_user_text )',
-                       array( 'rc_user != 0', 'rc_bot' => 0, "rc_log_type != 'newusers'" ), __METHOD__ 
+                       array( 'rc_user != 0', 'rc_bot' => 0, "rc_log_type != 'newusers'" ), __METHOD__
                );
-               $wgDatabase->update( 'site_stats', 
-                       array( 'ss_active_users' => intval($activeUsers) ),
+               $wgDatabase->update( 'site_stats',
+                       array( 'ss_active_users' => intval( $activeUsers ) ),
                        array( 'ss_row_id' => 1 ), __METHOD__, array( 'LIMIT' => 1 )
                );
        }
-       echo( "...ss_active_users user count set...\n" );
+       wfOut( "...ss_active_users user count set...\n" );
 }
 
 function purge_cache() {
        global $wgDatabase;
        # We can't guarantee that the user will be able to use TRUNCATE,
        # but we know that DELETE is available to us
-       echo( "Purging caches..." );
+       wfOut( "Purging caches..." );
        $wgDatabase->delete( 'objectcache', '*', __METHOD__ );
-       echo( "done.\n" );
+       wfOut( "done.\n" );
 }
 
 function do_all_updates( $shared = false, $purge = true ) {
-       global $wgNewTables, $wgNewFields, $wgRenamedTables, $wgSharedDB, $wgSharedTables, $wgDatabase, $wgDBtype, $IP;
+       global $wgSharedDB, $wgSharedTables, $wgDatabase, $wgDBtype;
 
-       wfRunHooks('LoadExtensionSchemaUpdates');
+       wfRunHooks( 'LoadExtensionSchemaUpdates' );
 
-       $doUser = $shared ? $wgSharedDB && in_array('user', $wgSharedTables) : !$wgSharedDB || !in_array('user', $wgSharedTables);
+       $doUser = $shared ? $wgSharedDB && in_array( 'user', $wgSharedTables ) : !$wgSharedDB || !in_array( 'user', $wgSharedTables );
 
-       if ($wgDBtype === 'postgres') {
+       if ( $wgDBtype === 'postgres' ) {
                do_postgres_updates();
                return;
        }
-       
-       # Run core updates in sequence...
-       global $wgMysqlUpdates;
-       foreach( $wgMysqlUpdates as $params ) {
-               $func = array_shift( $params );
-               call_user_func_array( $func, $params );
-               flush();
-       }
-       
-       /// @fixme clean up this mess too!
-       global $wgExtNewTables, $wgExtNewFields, $wgExtNewIndexes;
-       # Add missing extension tables
-       foreach ( $wgExtNewTables as $tableRecord ) {
-               add_table( $tableRecord[0], $tableRecord[1], true );
-               flush();
-       }
-       # Add missing extension fields
-       foreach ( $wgExtNewFields as $fieldRecord ) {
-               if ( $fieldRecord[0] != 'user' || $doUser ) {
-                       add_field( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
-               }
-               flush();
-       }
-       # Add missing extension indexes
-       foreach ( $wgExtNewIndexes as $fieldRecord ) {
-               add_index( $fieldRecord[0], $fieldRecord[1], $fieldRecord[2], true );
-               flush();
+
+       $up = DatabaseUpdater::newForDb( $wgDatabase );
+       $up->doUpdates();
+
+       wfOut( "Deleting old default messages (this may take a long time!)..." );
+       if ( !defined( 'MW_NO_SETUP' ) ) {
+               define( 'MW_NO_SETUP', true );
        }
+       require_once 'deleteDefaultMessages.php';
+       DeleteDefaultMessages::reallyExecute();
+       wfOut( "Done\n" );
 
+       do_stats_init();
 
-       echo "Deleting old default messages (this may take a long time!)..."; flush();
-       deleteDefaultMessages();
-       echo "Done\n"; flush();
-       
-       do_stats_init(); flush();
-       
-       if( $purge ) {
+       if ( $purge ) {
                purge_cache();
-               flush();
        }
 }
 
-function archive($name) {
+function archive( $name ) {
        global $wgDBtype, $IP;
-       switch ($wgDBtype) {
-       case "postgres":
-               return "$IP/maintenance/postgres/archives/$name";
-       default:
+       if ( file_exists( "$IP/maintenance/$wgDBtype/archives/$name" ) ) {
+               return "$IP/maintenance/$wgDBtype/archives/$name";
+       } else {
                return "$IP/maintenance/archives/$name";
        }
 }
@@ -1132,23 +986,23 @@ function do_restrictions_update() {
        $patch2 = 'patch-page_restrictions_sortkey.sql';
 
        if ( $wgDatabase->tableExists( $name ) ) {
-               echo "...$name table already exists.\n";
+               wfOut( "...$name table already exists.\n" );
        } else {
-               echo "Creating $name table...";
-               dbsource( archive($patch), $wgDatabase );
-               dbsource( archive($patch2), $wgDatabase );
-               echo "ok\n";
+               wfOut( "Creating $name table..." );
+               $wgDatabase->sourceFile( archive( $patch ) );
+               $wgDatabase->sourceFile( archive( $patch2 ) );
+               wfOut( "ok\n" );
 
-               echo "Migrating old restrictions to new table...";
+               wfOut( "Migrating old restrictions to new table..." );
 
-               $res = $wgDatabase->select( 'page', array( 'page_id', 'page_restrictions' ), array("page_restrictions!=''", "page_restrictions!='edit=:move='"), __METHOD__ );
+               $res = $wgDatabase->select( 'page', array( 'page_id', 'page_restrictions' ), array( "page_restrictions!=''", "page_restrictions!='edit=:move='" ), __METHOD__ );
 
                $count = 0;
 
-               while ($row = $wgDatabase->fetchObject($res) ) {
-                       $count = ($count + 1) % 100;
+               while ( $row = $wgDatabase->fetchObject( $res ) ) {
+                       $count = ( $count + 1 ) % 100;
 
-                       if ($count == 0) {
+                       if ( $count == 0 ) {
                                if ( function_exists( 'wfWaitForSlaves' ) ) {
                                        wfWaitForSlaves( 10 );
                                } else {
@@ -1161,28 +1015,28 @@ function do_restrictions_update() {
                        $flatrestrictions = explode( ':', $row->page_restrictions );
 
                        $restrictions = array ();
-                       foreach( $flatrestrictions as $restriction ) {
+                       foreach ( $flatrestrictions as $restriction ) {
                                $thisrestriction = explode( '=', $restriction, 2 );
-                               if( count( $thisrestriction ) == 1 ) {
+                               if ( count( $thisrestriction ) == 1 ) {
                                        // Compatibility with old protections from before
                                        // separate move protection was added.
                                        list( $level ) = $thisrestriction;
-                                       if( $level ) {
+                                       if ( $level ) {
                                                $restrictions['edit'] = $level;
                                                $restrictions['move'] = $level;
                                        }
                                } else {
                                        list( $type, $level ) = $thisrestriction;
-                                       if( $level ) {
+                                       if ( $level ) {
                                                $restrictions[$type] = $level;
                                        }
                                }
 
-                       $wgDatabase->update( 'page', array ( 'page_restrictions' => ''), array( 'page_id' => $id ), __METHOD__ );
+                       $wgDatabase->update( 'page', array ( 'page_restrictions' => '' ), array( 'page_id' => $id ), __METHOD__ );
 
                        }
-                       
-                       foreach( $restrictions as $type => $level ) {
+
+                       foreach ( $restrictions as $type => $level ) {
                                $wgDatabase->insert( 'page_restrictions', array ( 'pr_page' => $id,
                                                                                        'pr_type' => $type,
                                                                                        'pr_level' => $level,
@@ -1191,77 +1045,160 @@ function do_restrictions_update() {
                                                                                        __METHOD__ );
                        }
                }
-               print "ok\n";
+               wfOut( "ok\n" );
        }
 }
 
 function do_category_population() {
-       if( update_row_exists( 'populate category' ) ) {
-               echo "...category table already populated.\n";
+       if ( update_row_exists( 'populate category' ) ) {
+               wfOut( "...category table already populated.\n" );
                return;
        }
-       require_once( 'populateCategory.inc' );
-       echo "Populating category table, printing progress markers.  ".
-"For large databases, you\n".
-"may want to hit Ctrl-C and do this manually with maintenance/\n".
-"populateCategory.php.\n";
-       populateCategory( '', 10, 0, true );
-       echo "Done populating category table.\n";
+       require_once( 'populateCategory.php' );
+       wfOut(
+               "Populating category table, printing progress markers. " .
+               "For large databases, you\n" .
+               "may want to hit Ctrl-C and do this manually with maintenance/\n" .
+               "populateCategory.php.\n"
+       );
+       $task = new PopulateCategory();
+       $task->execute();
+       wfOut( "Done populating category table.\n" );
 }
 
 function do_populate_parent_id() {
-       if( update_row_exists( 'populate rev_parent_id' ) ) {
-               echo "...rev_parent_id column already populated.\n";
+       if ( update_row_exists( 'populate rev_parent_id' ) ) {
+               wfOut( "...rev_parent_id column already populated.\n" );
                return;
        }
-       require_once( 'populateParentId.inc' );
-       
+       require_once( 'populateParentId.php' );
+       $task = new PopulateParentId();
+       $task->execute();
+}
+
+function do_populate_rev_len() {
+       if ( update_row_exists( 'populate rev_len' ) ) {
+               wfOut( "...rev_len column already populated.\n" );
+               return;
+       }
+       require_once( 'populateRevisionLength.php' );
+       $task = new PopulateRevisionLength();
+       $task->execute();
+}
+
+function sqlite_initial_indexes() {
        global $wgDatabase;
-       populate_rev_parent_id( $wgDatabase );
+       // initial-indexes.sql fails if the indexes are already present, so we perform a quick check if our database is newer.
+       if ( update_row_exists( 'initial_indexes' ) || $wgDatabase->indexExists( 'user', 'user_name' ) ) {
+               wfOut( "...have initial indexes\n" );
+               return;
+       }
+       wfOut( "Adding initial indexes..." );
+       $wgDatabase->sourceFile( archive( 'initial-indexes.sql' ) );
+       wfOut( "done\n" );
+}
+
+function sqlite_setup_searchindex() {
+       global $wgDatabase;
+       $module = $wgDatabase->getFulltextSearchModule();
+       $fts3tTable = update_row_exists( 'fts3' );
+       if ( $fts3tTable &&  !$module ) {
+               wfOut( '...PHP is missing FTS3 support, downgrading tables...' );
+               $wgDatabase->sourceFile( archive( 'searchindex-no-fts.sql' ) );
+               wfOut( "done\n" );
+       } elseif ( !$fts3tTable && $module == 'FTS3' ) {
+               wfOut( '...adding FTS3 search capabilities...' );
+               $wgDatabase->sourceFile( archive( 'searchindex-fts3.sql' ) );
+               wfOut( "done\n" );
+       } else {
+               wfOut( "...fulltext search table appears to be in order.\n" );
+       }
+}
+
+function do_unique_pl_tl_il() {
+       global $wgDatabase;
+       $info = $wgDatabase->indexInfo( 'pagelinks', 'pl_namespace' );
+       if ( is_array( $info ) && !$info[0]->Non_unique ) {
+               wfOut( "...pl_namespace, tl_namespace, il_to indices are already UNIQUE.\n" );
+       } else {
+               wfOut( "Making pl_namespace, tl_namespace and il_to indices UNIQUE... " );
+               $wgDatabase->sourceFile( archive( 'patch-pl-tl-il-unique.sql' ) );
+               wfOut( "ok\n" );
+       }
 }
 
-function update_password_format() {
-       if ( update_row_exists( 'password format' ) ) {
-               echo "...password hash format already changed\n";
+function do_log_search_population() {
+       if ( update_row_exists( 'populate log_search' ) ) {
+               wfOut( "...log_search table already populated.\n" );
                return;
        }
+       require_once( 'populateLogSearch.php' );
+       wfOut(
+"Populating log_search table, printing progress markers. For large\n" .
+"databases, you may want to hit Ctrl-C and do this manually with\n" .
+"maintenance/populateLogSearch.php.\n" );
+       $task = new PopulateLogSearch();
+       $task->execute();
+       wfOut( "Done populating log_search table.\n" );
+}
 
-       echo "Updating password hash format...";
+function rename_eu_wiki_id() {
+       global $wgDatabase;
+       if ( $wgDatabase->fieldExists( 'external_user', 'eu_local_id' ) ) {
+               wfOut( "...eu_wiki_id already renamed to eu_local_id.\n" );
+               return;
+       }
+       wfOut( "Renaming eu_wiki_id -> eu_local_id... " );
+       $wgDatabase->sourceFile( archive( 'patch-eu_local_id.sql' ) );
+       wfOut( "ok\n" );
+}
 
-       global $wgDatabase, $wgPasswordSalt;
-       $user = $wgDatabase->tableName( 'user' );
-       if ( $wgPasswordSalt ) {
-               $sql = "UPDATE $user SET user_password=CONCAT(':B:', user_id, ':', user_password) " .
-                       "WHERE user_password NOT LIKE ':%'";
+function do_update_transcache_field() {
+       global $wgDatabase;
+       if ( update_row_exists( 'convert transcache field' ) ) {
+               wfOut( "...transcache tc_time already converted.\n" );
+               return;
        } else {
-               $sql = "UPDATE $user SET user_password=CONCAT(':A:', user_password) " .
-                       "WHERE user_password NOT LIKE ':%'";
+               wfOut( "Converting tc_time from UNIX epoch to MediaWiki timestamp... " );
+               $wgDatabase->sourceFile( archive( 'patch-tc-timestamp.sql' ) );
+               wfOut( "ok\n" );
        }
-       $wgDatabase->query( $sql, __METHOD__ );
-       $wgDatabase->insert( 'updatelog', array( 'ul_key' => 'password format' ), __METHOD__ );
+}
 
-       echo "done\n";
+function do_update_mime_minor_field() {
+       if ( update_row_exists( 'mime_minor_length' ) ) {
+               wfOut( "...*_mime_minor fields are already long enough.\n" );
+       } else {
+               global $wgDatabase;
+               wfOut( "Altering all *_mime_minor fields to 100 bytes in size ... " );
+               $wgDatabase->sourceFile( archive( 'patch-mime_minor_length.sql' ) );
+               wfOut( "ok\n" );
+       }
 }
 
-function
-pg_describe_table($table)
-{
-global $wgDatabase, $wgDBmwschema;
+/***********************************************************************
+ * Start PG stuff
+ * TODO: merge with above
+ ***********************************************************************/
+
+function pg_describe_table( $table ) {
+       global $wgDatabase, $wgDBmwschema;
        $q = <<<END
 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
-       WHERE pg_class.relnamespace = pg_namespace.oid 
+       WHERE pg_class.relnamespace = pg_namespace.oid
          AND attrelid=pg_class.oid AND attnum > 0
          AND relname=%s AND nspname=%s
 END;
-       $res = $wgDatabase->query(sprintf($q,
-                       $wgDatabase->addQuotes($table),
-                       $wgDatabase->addQuotes($wgDBmwschema)));
-       if (!$res)
+       $res = $wgDatabase->query( sprintf( $q,
+                       $wgDatabase->addQuotes( $table ),
+                       $wgDatabase->addQuotes( $wgDBmwschema ) ) );
+       if ( !$res ) {
                return null;
+       }
 
        $cols = array();
-       while ($r = $wgDatabase->fetchRow($res)) {
-               $cols[] = array(        
+       while ( $r = $wgDatabase->fetchRow( $res ) ) {
+               $cols[] = array(
                                "name" => $r[0],
                                "ord" => $r[1],
                        );
@@ -1269,10 +1206,8 @@ END;
        return $cols;
 }
 
-function
-pg_describe_index($idx)
-{
-global $wgDatabase, $wgDBmwschema;
+function pg_describe_index( $idx ) {
+       global $wgDatabase, $wgDBmwschema;
 
        // first fetch the key (which is a list of columns ords) and
        // the table the index applies to (an oid)
@@ -1283,488 +1218,613 @@ SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
          AND relname=%s
          AND indexrelid=pg_class.oid
 END;
-       $res = $wgDatabase->query(sprintf($q,
-                       $wgDatabase->addQuotes($wgDBmwschema),
-                       $wgDatabase->addQuotes($idx)));
-       if (!$res)
+       $res = $wgDatabase->query( sprintf( $q,
+                       $wgDatabase->addQuotes( $wgDBmwschema ),
+                       $wgDatabase->addQuotes( $idx ) ) );
+       if ( !$res ) {
                return null;
-       if (!($r = $wgDatabase->fetchRow($res))) {
-               $wgDatabase->freeResult($res);
+       }
+       if ( !( $r = $wgDatabase->fetchRow( $res ) ) ) {
+               $wgDatabase->freeResult( $res );
                return null;
        }
 
        $indkey = $r[0];
-       $relid = intval($r[1]);
-       $indkeys = explode(" ", $indkey);
-       $wgDatabase->freeResult($res);
+       $relid = intval( $r[1] );
+       $indkeys = explode( " ", $indkey );
+       $wgDatabase->freeResult( $res );
 
        $colnames = array();
-       foreach ($indkeys as $rid) {
+       foreach ( $indkeys as $rid ) {
                $query = <<<END
 SELECT attname FROM pg_class, pg_attribute
        WHERE attrelid=$relid
          AND attnum=%d
          AND attrelid=pg_class.oid
 END;
-               $r2 = $wgDatabase->query(sprintf($query, $rid));
-               if (!$r2)
+               $r2 = $wgDatabase->query( sprintf( $query, $rid ) );
+               if ( !$r2 ) {
                        return null;
-               if (!($row2 = $wgDatabase->fetchRow($r2))) {
-                       $wgDatabase->freeResult($r2);
+               }
+               if ( !( $row2 = $wgDatabase->fetchRow( $r2 ) ) ) {
+                       $wgDatabase->freeResult( $r2 );
                        return null;
                }
                $colnames[] = $row2[0];
-               $wgDatabase->freeResult($r2);
+               $wgDatabase->freeResult( $r2 );
        }
 
        return $colnames;
 }
 
-function
-pg_index_exists($table, $index)
-{
-global $wgDatabase, $wgDBmwschema;
-       $exists = $wgDatabase->selectField("pg_indexes", "indexname",
+function pg_index_exists( $table, $index ) {
+       global $wgDatabase, $wgDBmwschema;
+       $exists = $wgDatabase->selectField( "pg_indexes", "indexname",
                        array(  "indexname" => $index,
                                "tablename" => $table,
-                               "schemaname" => $wgDBmwschema));
+                               "schemaname" => $wgDBmwschema ) );
        return $exists === $index;
 }
 
-function
-pg_fkey_deltype($fkey)
-{
-global $wgDatabase, $wgDBmwschema;
+function pg_fkey_deltype( $fkey ) {
+       global $wgDatabase, $wgDBmwschema;
        $q = <<<END
 SELECT confdeltype FROM pg_constraint, pg_namespace
        WHERE connamespace=pg_namespace.oid
          AND nspname=%s
          AND conname=%s;
 END;
-       $r = $wgDatabase->query(sprintf($q,
-               $wgDatabase->addQuotes($wgDBmwschema),
-               $wgDatabase->addQuotes($fkey)));
-       if (!($row = $wgDatabase->fetchRow($r)))
+       $r = $wgDatabase->query( sprintf( $q,
+               $wgDatabase->addQuotes( $wgDBmwschema ),
+               $wgDatabase->addQuotes( $fkey ) ) );
+       if ( !( $row = $wgDatabase->fetchRow( $r ) ) ) {
                return null;
+       }
        return $row[0];
 }
 
-function
-pg_rule_def($table, $rule)
-{
-global $wgDatabase, $wgDBmwschema;
+function pg_rule_def( $table, $rule ) {
+       global $wgDatabase, $wgDBmwschema;
        $q = <<<END
 SELECT definition FROM pg_rules
        WHERE schemaname = %s
          AND tablename = %s
          AND rulename = %s
 END;
-       $r = $wgDatabase->query(sprintf($q,
-                       $wgDatabase->addQuotes($wgDBmwschema),
-                       $wgDatabase->addQuotes($table),
-                       $wgDatabase->addQuotes($rule)));
-       $row = $wgDatabase->fetchRow($r);
-       if (!$row)
+       $r = $wgDatabase->query( sprintf( $q,
+                       $wgDatabase->addQuotes( $wgDBmwschema ),
+                       $wgDatabase->addQuotes( $table ),
+                       $wgDatabase->addQuotes( $rule ) ) );
+       $row = $wgDatabase->fetchRow( $r );
+       if ( !$row ) {
                return null;
+       }
        $d = $row[0];
-       $wgDatabase->freeResult($r);
+       $wgDatabase->freeResult( $r );
        return $d;
 }
 
 function do_postgres_updates() {
-       global $wgDatabase, $wgVersion, $wgDBmwschema, $wgDBts2schema, $wgShowExceptionDetails, $wgDBuser;
+       global $wgDatabase, $wgDBmwschema, $wgDBts2schema, $wgShowExceptionDetails, $wgDBuser;
 
-       ## Gather version numbers in case we need them
-       $version = $wgDatabase->getServerVersion(); ## long string
-       $numver = $wgDatabase->numeric_version; ## X.Y e.g. 8.3
+       # # Gather version numbers in case we need them
+       $version = $wgDatabase->getServerVersion(); # # long string
+       $numver = $wgDatabase->numeric_version; # # X.Y e.g. 8.3
 
        $wgShowExceptionDetails = 1;
 
        # Just in case their LocalSettings.php does not have this:
-       if ( !isset( $wgDBmwschema ))
+       if ( !isset( $wgDBmwschema ) ) {
                $wgDBmwschema = 'mediawiki';
+       }
 
        # Verify that this user is configured correctly
-       $safeuser = $wgDatabase->addQuotes($wgDBuser);
+       $safeuser = $wgDatabase->addQuotes( $wgDBuser );
        $SQL = "SELECT array_to_string(useconfig,'*') FROM pg_catalog.pg_user WHERE usename = $safeuser";
        $config = pg_fetch_result( $wgDatabase->doQuery( $SQL ), 0, 0 );
        $conf = array();
-       foreach( explode( '*', $config ) as $c ) {
-               list( $x,$y ) = explode( '=', $c );
+       foreach ( explode( '*', $config ) as $c ) {
+               list( $x, $y ) = explode( '=', $c );
                $conf[$x] = $y;
        }
-       if( !array_key_exists( 'search_path', $conf ) ) {
+       if ( !array_key_exists( 'search_path', $conf ) ) {
                $search_path = '';
-       }
-       else {
+       } else {
                $search_path = $conf['search_path'];
        }
-       if( strpos( $search_path, $wgDBmwschema ) === false ) {
-               echo "Adding in schema \"$wgDBmwschema\" to search_path for user \"$wgDBuser\"\n";
+       if ( strpos( $search_path, $wgDBmwschema ) === false ) {
+               wfOut( "Adding in schema \"$wgDBmwschema\" to search_path for user \"$wgDBuser\"\n" );
                $search_path = "$wgDBmwschema, $search_path";
        }
-       if( strpos( $search_path, $wgDBts2schema ) === false ) {
-               echo "Adding in schema \"$wgDBts2schema\" to search_path for user \"$wgDBuser\"\n";
+       if ( strpos( $search_path, $wgDBts2schema ) === false ) {
+               wfOut( "Adding in schema \"$wgDBts2schema\" to search_path for user \"$wgDBuser\"\n" );
                $search_path = "$search_path, $wgDBts2schema";
        }
-       if( array_key_exists( 'search_path', $conf ) === false || $search_path != $conf['search_path'] ) {
+       $search_path = str_replace( ', ,', ',', $search_path );
+       if ( array_key_exists( 'search_path', $conf ) === false || $search_path != $conf['search_path'] ) {
                $wgDatabase->doQuery( "ALTER USER $wgDBuser SET search_path = $search_path" );
                $wgDatabase->doQuery( "SET search_path = $search_path" );
-       }
-       else {
+       } else {
                $path = $conf['search_path'];
-               echo "... search_path for user \"$wgDBuser\" looks correct ($path)\n";
+               wfOut( "... search_path for user \"$wgDBuser\" looks correct ($path)\n" );
        }
        $goodconf = array(
                'client_min_messages' => 'error',
                'DateStyle'           => 'ISO, YMD',
                'TimeZone'            => 'GMT'
        );
-       foreach( array_keys( $goodconf ) AS $key ) {
+       foreach ( array_keys( $goodconf ) AS $key ) {
                $value = $goodconf[$key];
-               if( !array_key_exists( $key, $conf ) or $conf[$key] !== $value ) {
-                       echo "Setting $key to '$value' for user \"$wgDBuser\"\n";
+               if ( !array_key_exists( $key, $conf ) or $conf[$key] !== $value ) {
+                       wfOut( "Setting $key to '$value' for user \"$wgDBuser\"\n" );
                        $wgDatabase->doQuery( "ALTER USER $wgDBuser SET $key = '$value'" );
                        $wgDatabase->doQuery( "SET $key = '$value'" );
-               }
-               else {
-                       echo "... default value of \"$key\" is correctly set to \"$value\" for user \"$wgDBuser\"\n";
+               } else {
+                       wfOut( "... default value of \"$key\" is correctly set to \"$value\" for user \"$wgDBuser\"\n" );
                }
        }
 
        $newsequences = array(
-               "log_log_id_seq",
-               "pr_id_val",
+               "logging_log_id_seq",
+               "page_restrictions_pr_id_seq",
        );
 
        $newtables = array(
-               array("category",          "patch-category.sql"),
-               array("mediawiki_version", "patch-mediawiki_version.sql"),
-               array("mwuser",            "patch-mwuser.sql"),
-               array("pagecontent",       "patch-pagecontent.sql"),
-               array("querycachetwo",     "patch-querycachetwo.sql"),
-               array("page_props",        "patch-page_props.sql"),
-               array("page_restrictions", "patch-page_restrictions.sql"),
-               array("profiling",         "patch-profiling.sql"),
-               array("protected_titles",  "patch-protected_titles.sql"),
-               array("redirect",          "patch-redirect.sql"),
-               array("updatelog",         "patch-updatelog.sql"),
+               array( "category",          "patch-category.sql" ),
+               array( "mwuser",            "patch-mwuser.sql" ),
+               array( "pagecontent",       "patch-pagecontent.sql" ),
+               array( "querycachetwo",     "patch-querycachetwo.sql" ),
+               array( "page_props",        "patch-page_props.sql" ),
+               array( "page_restrictions", "patch-page_restrictions.sql" ),
+               array( "profiling",         "patch-profiling.sql" ),
+               array( "protected_titles",  "patch-protected_titles.sql" ),
+               array( "redirect",          "patch-redirect.sql" ),
+               array( "updatelog",         "patch-updatelog.sql" ),
+               array( 'change_tag',        'patch-change_tag.sql' ),
+               array( 'tag_summary',       'patch-change_tag.sql' ),
+               array( 'valid_tag',         'patch-change_tag.sql' ),
+               array( 'user_properties',   'patch-user_properties.sql' ),
+               array( 'log_search',        'patch-log_search.sql' ),
+               array( 'l10n_cache',        'patch-l10n_cache.sql' ),
+               array( 'iwlinks',           'patch-iwlinks.sql' ),
        );
 
        $newcols = array(
-               array("archive",       "ar_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
-               array("archive",       "ar_len",               "INTEGER"),
-               array("archive",       "ar_page_id",           "INTEGER"),
-               array("archive",       "ar_parent_id",         "INTEGER"),
-               array("image",         "img_sha1",             "TEXT NOT NULL DEFAULT ''"),
-               array("ipblocks",      "ipb_anon_only",        "SMALLINT NOT NULL DEFAULT 0"),
-               array("ipblocks",      "ipb_by_text",          "TEXT NOT NULL DEFAULT ''"),
-               array("ipblocks",      "ipb_block_email",      "SMALLINT NOT NULL DEFAULT 0"),
-               array("ipblocks",      "ipb_create_account",   "SMALLINT NOT NULL DEFAULT 1"),
-               array("ipblocks",      "ipb_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
-               array("ipblocks",      "ipb_enable_autoblock", "SMALLINT NOT NULL DEFAULT 1"),
-               array("ipblocks",      "ipb_allow_usertalk",   "SMALLINT NOT NULL DEFAULT 0"),
-               array("filearchive",   "fa_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
-               array("logging",       "log_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
-               array("logging",       "log_id",               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('log_log_id_seq')"),
-               array("logging",       "log_params",           "TEXT"),
-               array("mwuser",        "user_editcount",       "INTEGER"),
-               array("mwuser",        "user_newpass_time",    "TIMESTAMPTZ"),
-               array("oldimage",      "oi_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
-               array("oldimage",      "oi_metadata",          "BYTEA NOT NULL DEFAULT ''"),
-               array("oldimage",      "oi_media_type",        "TEXT"),
-               array("oldimage",      "oi_major_mime",        "TEXT NOT NULL DEFAULT 'unknown'"),
-               array("oldimage",      "oi_minor_mime",        "TEXT NOT NULL DEFAULT 'unknown'"),
-               array("oldimage",      "oi_sha1",              "TEXT NOT NULL DEFAULT ''"),
-               array("page_restrictions", "pr_id",            "INTEGER NOT NULL UNIQUE DEFAULT nextval('pr_id_val')"),
-               array("profiling",     "pf_memory",            "NUMERIC(18,10) NOT NULL DEFAULT 0"),
-               array("recentchanges", "rc_deleted",           "SMALLINT NOT NULL DEFAULT 0"),
-               array("recentchanges", "rc_log_action",        "TEXT"),
-        array("recentchanges", "rc_log_type",          "TEXT"),
-        array("recentchanges", "rc_logid",             "INTEGER NOT NULL DEFAULT 0"),
-               array("recentchanges", "rc_new_len",           "INTEGER"),
-               array("recentchanges", "rc_old_len",           "INTEGER"),
-               array("recentchanges", "rc_params",            "TEXT"),
-               array("revision",      "rev_len",              "INTEGER"),
-               array("revision",      "rev_deleted",          "SMALLINT NOT NULL DEFAULT 0"),
-               array("user_newtalk",  "user_last_timestamp",  "TIMESTAMPTZ"),
-               array("site_stats",    "ss_active_users",      "INTEGER DEFAULT '-1'"),
-               array("revision",      "rev_parent_id",        "INTEGER DEFAULT NULL"),
+               array( "archive",       "ar_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
+               array( "archive",       "ar_len",               "INTEGER" ),
+               array( "archive",       "ar_page_id",           "INTEGER" ),
+               array( "archive",       "ar_parent_id",         "INTEGER" ),
+               array( "image",         "img_sha1",             "TEXT NOT NULL DEFAULT ''" ),
+               array( "ipblocks",      "ipb_allow_usertalk",   "SMALLINT NOT NULL DEFAULT 0" ),
+               array( "ipblocks",      "ipb_anon_only",        "SMALLINT NOT NULL DEFAULT 0" ),
+               array( "ipblocks",      "ipb_by_text",          "TEXT NOT NULL DEFAULT ''" ),
+               array( "ipblocks",      "ipb_block_email",      "SMALLINT NOT NULL DEFAULT 0" ),
+               array( "ipblocks",      "ipb_create_account",   "SMALLINT NOT NULL DEFAULT 1" ),
+               array( "ipblocks",      "ipb_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
+               array( "ipblocks",      "ipb_enable_autoblock", "SMALLINT NOT NULL DEFAULT 1" ),
+               array( "filearchive",   "fa_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
+               array( "logging",       "log_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
+               array( "logging",       "log_id",               "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ),
+               array( "logging",       "log_params",           "TEXT" ),
+               array( "mwuser",        "user_editcount",       "INTEGER" ),
+               array( "mwuser",        "user_hidden",          "SMALLINT NOT NULL DEFAULT 0" ),
+               array( "mwuser",        "user_newpass_time",    "TIMESTAMPTZ" ),
+               array( "oldimage",      "oi_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
+               array( "oldimage",      "oi_major_mime",        "TEXT NOT NULL DEFAULT 'unknown'" ),
+               array( "oldimage",      "oi_media_type",        "TEXT" ),
+               array( "oldimage",      "oi_metadata",          "BYTEA NOT NULL DEFAULT ''" ),
+               array( "oldimage",      "oi_minor_mime",        "TEXT NOT NULL DEFAULT 'unknown'" ),
+               array( "oldimage",      "oi_sha1",              "TEXT NOT NULL DEFAULT ''" ),
+               array( "page_restrictions", "pr_id",            "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_val')" ),
+               array( "profiling",     "pf_memory",            "NUMERIC(18,10) NOT NULL DEFAULT 0" ),
+               array( "recentchanges", "rc_deleted",           "SMALLINT NOT NULL DEFAULT 0" ),
+               array( "recentchanges", "rc_log_action",        "TEXT" ),
+               array( "recentchanges", "rc_log_type",          "TEXT" ),
+               array( "recentchanges", "rc_logid",             "INTEGER NOT NULL DEFAULT 0" ),
+               array( "recentchanges", "rc_new_len",           "INTEGER" ),
+               array( "recentchanges", "rc_old_len",           "INTEGER" ),
+               array( "recentchanges", "rc_params",            "TEXT" ),
+               array( "redirect",      "rd_interwiki",         "TEXT NULL" ),
+               array( "redirect",      "rd_fragment",          "TEXT NULL" ),
+               array( "revision",      "rev_deleted",          "SMALLINT NOT NULL DEFAULT 0" ),
+               array( "revision",      "rev_len",              "INTEGER" ),
+               array( "revision",      "rev_parent_id",        "INTEGER DEFAULT NULL" ),
+               array( "site_stats",    "ss_active_users",      "INTEGER DEFAULT '-1'" ),
+               array( "user_newtalk",  "user_last_timestamp",  "TIMESTAMPTZ" ),
+               array( "logging",       "log_user_text",        "TEXT NOT NULL DEFAULT ''" ),
+               array( "logging",       "log_page",             "INTEGER" ),
+               array( "interwiki",     "iw_api",               "TEXT NOT NULL DEFAULT ''"),
+               array( "interwiki",     "iw_wikiid",            "TEXT NOT NULL DEFAULT ''"),
        );
 
 
        # table, column, desired type, USING clause if needed (with new default if needed)
        $typechanges = array(
-               array("archive",      "ar_deleted",      "smallint", ""),
-               array("archive",      "ar_minor_edit",   "smallint", "ar_minor_edit::smallint DEFAULT 0"),
-               array("filearchive",  "fa_deleted",      "smallint", ""),
-               array("filearchive",  "fa_height",       "integer",  ""),
-               array("filearchive",  "fa_metadata",     "bytea",    "decode(fa_metadata,'escape')"),
-               array("filearchive",  "fa_size",         "integer",  ""),
-               array("filearchive",  "fa_width",        "integer",  ""),
-               array("filearchive",  "fa_storage_group","text",     ""),
-               array("filearchive",  "fa_storage_key",  "text",     ""),
-               array("image",        "img_metadata",    "bytea",    "decode(img_metadata,'escape')"),
-               array("image",        "img_size",        "integer",  ""),
-               array("image",        "img_width",       "integer",  ""),
-               array("image",        "img_height",      "integer",  ""),
-               array("interwiki",    "iw_local",        "smallint", "iw_local::smallint DEFAULT 0"),
-               array("interwiki",    "iw_trans",        "smallint", "iw_trans::smallint DEFAULT 0"),
-               array("ipblocks",     "ipb_auto",        "smallint", "ipb_auto::smallint DEFAULT 0"),
-               array("ipblocks",     "ipb_anon_only",   "smallint", "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0"),
-               array("ipblocks",     "ipb_create_account", "smallint", "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1"),
-               array("ipblocks",     "ipb_enable_autoblock", "smallint", "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1"),
-               array("ipblocks",     "ipb_block_email", "smallint", "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0"),
-               array("ipblocks",     "ipb_address",     "text",     "ipb_address::text"),
-               array("ipblocks",     "ipb_deleted",     "smallint", "ipb_deleted::smallint"),
-               array("math",         "math_inputhash",  "bytea",    "decode(math_inputhash,'escape')"),
-               array("math",         "math_outputhash", "bytea",    "decode(math_outputhash,'escape')"),
-               array("mwuser",       "user_token",      "text",     ""),
-               array("mwuser",       "user_email_token","text",     ""),
-               array("objectcache",  "keyname",         "text",     ""),
-               array("oldimage",     "oi_height",       "integer",  ""),
-               array("oldimage",     "oi_metadata",     "bytea",    "decode(img_metadata,'escape')"),
-               array("oldimage",     "oi_size",         "integer",  ""),
-               array("oldimage",     "oi_width",        "integer",  ""),
-               array("page",         "page_is_redirect","smallint", "page_is_redirect::smallint DEFAULT 0"),
-               array("page",         "page_is_new",     "smallint", "page_is_new::smallint DEFAULT 0"),
-               array("querycache",   "qc_value",        "integer",  ""),
-               array("querycachetwo","qcc_value",       "integer",  ""),
-               array("recentchanges","rc_bot",          "smallint", "rc_bot::smallint DEFAULT 0"),
-               array("recentchanges","rc_deleted",      "smallint", ""),
-               array("recentchanges","rc_minor",        "smallint", "rc_minor::smallint DEFAULT 0"),
-               array("recentchanges","rc_new",          "smallint", "rc_new::smallint DEFAULT 0"),
-               array("recentchanges","rc_type",         "smallint", "rc_type::smallint DEFAULT 0"),
-               array("recentchanges","rc_patrolled",    "smallint", "rc_patrolled::smallint DEFAULT 0"),
-               array("revision",     "rev_deleted",     "smallint", "rev_deleted::smallint DEFAULT 0"),
-               array("revision",     "rev_minor_edit",  "smallint", "rev_minor_edit::smallint DEFAULT 0"),
-               array("templatelinks","tl_namespace",    "smallint", "tl_namespace::smallint"),
-               array("user_newtalk", "user_ip",         "text",     "host(user_ip)"),
+               array( "archive",      "ar_deleted",      "smallint", "" ),
+               array( "archive",      "ar_minor_edit",   "smallint", "ar_minor_edit::smallint DEFAULT 0" ),
+               array( "filearchive",  "fa_deleted",      "smallint", "" ),
+               array( "filearchive",  "fa_height",       "integer",  "" ),
+               array( "filearchive",  "fa_metadata",     "bytea",    "decode(fa_metadata,'escape')" ),
+               array( "filearchive",  "fa_size",         "integer",  "" ),
+               array( "filearchive",  "fa_width",        "integer",  "" ),
+               array( "filearchive",  "fa_storage_group", "text",     "" ),
+               array( "filearchive",  "fa_storage_key",  "text",     "" ),
+               array( "image",        "img_metadata",    "bytea",    "decode(img_metadata,'escape')" ),
+               array( "image",        "img_size",        "integer",  "" ),
+               array( "image",        "img_width",       "integer",  "" ),
+               array( "image",        "img_height",      "integer",  "" ),
+               array( "interwiki",    "iw_local",        "smallint", "iw_local::smallint DEFAULT 0" ),
+               array( "interwiki",    "iw_trans",        "smallint", "iw_trans::smallint DEFAULT 0" ),
+               array( "ipblocks",     "ipb_auto",        "smallint", "ipb_auto::smallint DEFAULT 0" ),
+               array( "ipblocks",     "ipb_anon_only",   "smallint", "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ),
+               array( "ipblocks",     "ipb_create_account", "smallint", "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ),
+               array( "ipblocks",     "ipb_enable_autoblock", "smallint", "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ),
+               array( "ipblocks",     "ipb_block_email", "smallint", "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ),
+               array( "ipblocks",     "ipb_address",     "text",     "ipb_address::text" ),
+               array( "ipblocks",     "ipb_deleted",     "smallint", "ipb_deleted::smallint DEFAULT 0" ),
+               array( "math",         "math_inputhash",  "bytea",    "decode(math_inputhash,'escape')" ),
+               array( "math",         "math_outputhash", "bytea",    "decode(math_outputhash,'escape')" ),
+               array( "mwuser",       "user_token",      "text",     "" ),
+               array( "mwuser",       "user_email_token", "text",     "" ),
+               array( "objectcache",  "keyname",         "text",     "" ),
+               array( "oldimage",     "oi_height",       "integer",  "" ),
+               array( "oldimage",     "oi_metadata",     "bytea",    "decode(img_metadata,'escape')" ),
+               array( "oldimage",     "oi_size",         "integer",  "" ),
+               array( "oldimage",     "oi_width",        "integer",  "" ),
+               array( "page",         "page_is_redirect", "smallint", "page_is_redirect::smallint DEFAULT 0" ),
+               array( "page",         "page_is_new",     "smallint", "page_is_new::smallint DEFAULT 0" ),
+               array( "querycache",   "qc_value",        "integer",  "" ),
+               array( "querycachetwo", "qcc_value",       "integer",  "" ),
+               array( "recentchanges", "rc_bot",          "smallint", "rc_bot::smallint DEFAULT 0" ),
+               array( "recentchanges", "rc_deleted",      "smallint", "" ),
+               array( "recentchanges", "rc_minor",        "smallint", "rc_minor::smallint DEFAULT 0" ),
+               array( "recentchanges", "rc_new",          "smallint", "rc_new::smallint DEFAULT 0" ),
+               array( "recentchanges", "rc_type",         "smallint", "rc_type::smallint DEFAULT 0" ),
+               array( "recentchanges", "rc_patrolled",    "smallint", "rc_patrolled::smallint DEFAULT 0" ),
+               array( "revision",     "rev_deleted",     "smallint", "rev_deleted::smallint DEFAULT 0" ),
+               array( "revision",     "rev_minor_edit",  "smallint", "rev_minor_edit::smallint DEFAULT 0" ),
+               array( "templatelinks", "tl_namespace",    "smallint", "tl_namespace::smallint" ),
+               array( "user_newtalk", "user_ip",         "text",     "host(user_ip)" ),
+       );
+
+       # table, column, nullability
+       $nullchanges = array(
+               array( "oldimage", "oi_bits",       "NULL" ),
+               array( "oldimage", "oi_timestamp",  "NULL" ),
+               array( "oldimage", "oi_major_mime", "NULL" ),
+               array( "oldimage", "oi_minor_mime", "NULL" ),
        );
 
        $newindexes = array(
-               array("archive",       "archive_user_text",  "(ar_user_text)"),
-               array("image",         "img_sha1",           "(img_sha1)"),
-               array("oldimage",      "oi_sha1",            "(oi_sha1)"),
-               array("revision",      "rev_text_id_idx",    "(rev_text_id)"),
-               array("recentchanges", "rc_timestamp_nobot", "(rc_timestamp) WHERE rc_bot = 0"),
-               array("templatelinks", "templatelinks_from", "(tl_from)"),
-               array("watchlist",     "wl_user",            "(wl_user)"),
+               array( "archive",       "archive_user_text",  "(ar_user_text)" ),
+               array( "image",         "img_sha1",           "(img_sha1)" ),
+               array( "oldimage",      "oi_sha1",            "(oi_sha1)" ),
+               array( "revision",      "rev_text_id_idx",    "(rev_text_id)" ),
+               array( "recentchanges", "rc_timestamp_bot",   "(rc_timestamp) WHERE rc_bot = 0" ),
+               array( "templatelinks", "templatelinks_from", "(tl_from)" ),
+               array( "watchlist",     "wl_user",            "(wl_user)" ),
+               array( "logging",       "logging_user_type_time", "(log_user, log_type, log_timestamp)" ),
+               array( "logging",       "logging_page_id_time",   "(log_page,log_timestamp)" ),
+               array( "iwlinks",       "iwl_prefix_title_from",  "(iwl_prefix, iwl_title, iwl_from)" ),
        );
 
        $newrules = array(
        );
 
-       foreach ($newsequences as $ns) {
-               if ($wgDatabase->sequenceExists($ns)) {
-                       echo "... sequence \"$ns\" already exists\n";
+       # # All FK columns should be deferred
+       $deferredcols = array(
+               array( "archive",          "ar_user",         "mwuser(user_id) ON DELETE SET NULL" ),
+               array( "categorylinks",    "cl_from",         "page(page_id) ON DELETE CASCADE" ),
+               array( "externallinks",    "el_from",         "page(page_id) ON DELETE CASCADE" ),
+               array( "filearchive",      "fa_deleted_user", "mwuser(user_id) ON DELETE SET NULL" ),
+               array( "filearchive",      "fa_user",         "mwuser(user_id) ON DELETE SET NULL" ),
+               array( "image",            "img_user",        "mwuser(user_id) ON DELETE SET NULL" ),
+               array( "imagelinks",       "il_from",         "page(page_id) ON DELETE CASCADE" ),
+               array( "ipblocks",         "ipb_by",          "mwuser(user_id) ON DELETE CASCADE" ),
+               array( "ipblocks",         "ipb_user",        "mwuser(user_id) ON DELETE SET NULL" ),
+               array( "langlinks",        "ll_from",         "page(page_id) ON DELETE CASCADE" ),
+               array( "logging",          "log_user",        "mwuser(user_id) ON DELETE SET NULL" ),
+               array( "oldimage",         "oi_name",         "image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" ),
+               array( "oldimage",         "oi_user",         "mwuser(user_id) ON DELETE SET NULL" ),
+               array( "pagelinks",        "pl_from",         "page(page_id) ON DELETE CASCADE" ),
+               array( "page_props",       "pp_page",         "page (page_id) ON DELETE CASCADE" ),
+               array( "page_restrictions", "pr_page",         "page(page_id) ON DELETE CASCADE" ),
+               array( "protected_titles", "pt_user",         "mwuser(user_id) ON DELETE SET NULL" ),
+               array( "recentchanges",    "rc_cur_id",       "page(page_id) ON DELETE SET NULL" ),
+               array( "recentchanges",    "rc_user",         "mwuser(user_id) ON DELETE SET NULL" ),
+               array( "redirect",         "rd_from",         "page(page_id) ON DELETE CASCADE" ),
+               array( "revision",         "rev_page",        "page (page_id) ON DELETE CASCADE" ),
+               array( "revision",         "rev_user",        "mwuser(user_id) ON DELETE RESTRICT" ),
+               array( "templatelinks",    "tl_from",         "page(page_id) ON DELETE CASCADE" ),
+               array( "trackbacks",       "tb_page",         "page(page_id) ON DELETE CASCADE" ),
+               array( "user_groups",      "ug_user",         "mwuser(user_id) ON DELETE CASCADE" ),
+               array( "user_newtalk",     "user_id",         "mwuser(user_id) ON DELETE CASCADE" ),
+               array( "user_properties",  "up_user",         "mwuser(user_id) ON DELETE CASCADE" ),
+               array( "watchlist",        "wl_user",         "mwuser(user_id) ON DELETE CASCADE" ),
+       );
+
+       # Check new sequences, rename if needed
+       foreach ( $newsequences as $ns ) {
+               if ( $wgDatabase->sequenceExists( 'pr_id_val' ) ) {
+                       wfOut( "Updating sequence names\n" );
+                       $wgDatabase->sourceFile( archive( 'patch-update_sequences.sql' ) );
                        continue;
+               } elseif ( $wgDatabase->sequenceExists( 'page_restrictions_pr_id_seq' ) ) {
+                       wfOut( "... sequences already updated\n" );
+                       continue;
+               } else {
+                       wfOut( "Creating sequence \"$ns\"\n" );
+                       $wgDatabase->query( "CREATE SEQUENCE $ns" );
                }
-
-               echo "Creating sequence \"$ns\"\n";
-               $wgDatabase->query("CREATE SEQUENCE $ns");
        }
 
-       foreach ($newtables as $nt) {
-               if ($wgDatabase->tableExists($nt[0])) {
-                       echo "... table \"$nt[0]\" already exists\n";
+       foreach ( $newtables as $nt ) {
+               if ( $wgDatabase->tableExists( $nt[0] ) ) {
+                       wfOut( "... table \"$nt[0]\" already exists\n" );
                        continue;
                }
 
-               echo "Creating table \"$nt[0]\"\n";
-               dbsource(archive($nt[1]));
+               wfOut( "Creating table \"$nt[0]\"\n" );
+               $wgDatabase->sourceFile( archive( $nt[1] ) );
        }
 
-       ## Needed before newcols
-       if ($wgDatabase->tableExists("archive2")) {
-               echo "Converting \"archive2\" back to normal archive table\n";
-               if ($wgDatabase->ruleExists("archive", "archive_insert")) {
-                       echo "Dropping rule \"archive_insert\"\n";
-                       $wgDatabase->query("DROP RULE archive_insert ON archive");
+       # # Needed before newcols
+       if ( $wgDatabase->tableExists( "archive2" ) ) {
+               wfOut( "Converting \"archive2\" back to normal archive table\n" );
+               if ( $wgDatabase->ruleExists( "archive", "archive_insert" ) ) {
+                       wfOut( "Dropping rule \"archive_insert\"\n" );
+                       $wgDatabase->query( "DROP RULE archive_insert ON archive" );
                }
-               if ($wgDatabase->ruleExists("archive", "archive_delete")) {
-                       echo "Dropping rule \"archive_delete\"\n";
-                       $wgDatabase->query("DROP RULE archive_delete ON archive");
+               if ( $wgDatabase->ruleExists( "archive", "archive_delete" ) ) {
+                       wfOut( "Dropping rule \"archive_delete\"\n" );
+                       $wgDatabase->query( "DROP RULE archive_delete ON archive" );
                }
-               dbsource(archive("patch-remove-archive2.sql"));
+               $wgDatabase->sourceFile( archive( "patch-remove-archive2.sql" ) );
        }
        else
-               echo "... obsolete table \"archive2\" does not exist\n";
+               wfOut( "... obsolete table \"archive2\" does not exist\n" );
 
-       foreach ($newcols as $nc) {
-               $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
-               if (!is_null($fi)) {
-                       echo "... column \"$nc[0].$nc[1]\" already exists\n";
+       foreach ( $newcols as $nc ) {
+               $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
+               if ( !is_null( $fi ) ) {
+                       wfOut( "... column \"$nc[0].$nc[1]\" already exists\n" );
                        continue;
                }
 
-               echo "Adding column \"$nc[0].$nc[1]\"\n";
-               $wgDatabase->query("ALTER TABLE $nc[0] ADD $nc[1] $nc[2]");
+               wfOut( "Adding column \"$nc[0].$nc[1]\"\n" );
+               $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
        }
 
-       foreach ($typechanges as $tc) {
-               $fi = $wgDatabase->fieldInfo($tc[0], $tc[1]);
-               if (is_null($fi)) {
-                       echo "... error: expected column $tc[0].$tc[1] to exist\n";
-                       exit(1);
+       foreach ( $typechanges as $tc ) {
+               $fi = $wgDatabase->fieldInfo( $tc[0], $tc[1] );
+               if ( is_null( $fi ) ) {
+                       wfOut( "... error: expected column $tc[0].$tc[1] to exist\n" );
+                       exit( 1 );
                }
 
-               if ($fi->type() === $tc[2])
-                       echo "... column \"$tc[0].$tc[1]\" is already of type \"$tc[2]\"\n";
+               if ( $fi->type() === $tc[2] )
+                       wfOut( "... column \"$tc[0].$tc[1]\" is already of type \"$tc[2]\"\n" );
                else {
-                       echo "Changing column type of \"$tc[0].$tc[1]\" from \"{$fi->type()}\" to \"$tc[2]\"\n";
+                       wfOut( "Changing column type of \"$tc[0].$tc[1]\" from \"{$fi->type()}\" to \"$tc[2]\"\n" );
                        $sql = "ALTER TABLE $tc[0] ALTER $tc[1] TYPE $tc[2]";
-                       if (strlen($tc[3])) {
+                       if ( strlen( $tc[3] ) ) {
                                $default = array();
-                               if (preg_match( '/DEFAULT (.+)/', $tc[3], $default)) {
+                               if ( preg_match( '/DEFAULT (.+)/', $tc[3], $default ) ) {
                                        $sqldef = "ALTER TABLE $tc[0] ALTER $tc[1] SET DEFAULT $default[1]";
-                                       $wgDatabase->query($sqldef);
-                                       $tc[3] = preg_replace( '/\s*DEFAULT .+/', '', $tc[3]);
+                                       $wgDatabase->query( $sqldef );
+                                       $tc[3] = preg_replace( '/\s*DEFAULT .+/', '', $tc[3] );
                                }
                                $sql .= " USING $tc[3]";
                        }
                        $sql .= ";\nCOMMIT;\n";
-                       $wgDatabase->query($sql);
+                       $wgDatabase->query( $sql );
+               }
+       }
+
+       foreach ( $nullchanges as $nc ) {
+               $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
+               if ( is_null( $fi ) ) {
+                       wfOut( "... error: expected column $nc[0].$nc[1] to exist\n" );
+                       exit( 1 );
+               }
+               if ( $fi->nullable() ) {
+                       # # It's NULL - does it need to be NOT NULL?
+                       if ( 'NOT NULL' === $nc[2] ) {
+                               wfOut( "Changing \"$nc[0].$nc[1]\" to not allow NULLs\n" );
+                               $wgDatabase->query( "ALTER TABLE $nc[0] ALTER $nc[1] SET NOT NULL" );
+                       } else {
+                               wfOut( "... column \"$nc[0].$nc[1]\" is already set as NULL\n" );
+                       }
+               } else {
+                       # # It's NOT NULL - does it need to be NULL?
+                       if ( 'NULL' === $nc[2] ) {
+                               wfOut( "Changing \"$nc[0].$nc[1]\" to allow NULLs\n" );
+                               $wgDatabase->query( "ALTER TABLE $nc[0] ALTER $nc[1] DROP NOT NULL" );
+                       }
+                       else {
+                               wfOut( "... column \"$nc[0].$nc[1]\" is already set as NOT NULL\n" );
+                       }
                }
        }
 
-       if ($wgDatabase->fieldInfo('oldimage','oi_deleted')->type() !== 'smallint') {
-               echo "Changing \"oldimage.oi_deleted\" to type \"smallint\"\n";
+       if ( $wgDatabase->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) {
+               wfOut( "Changing \"oldimage.oi_deleted\" to type \"smallint\"\n" );
                $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
                $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
                $wgDatabase->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
+       } else {
+               wfOut( "... column \"oldimage.oi_deleted\" is already of type \"smallint\"\n" );
        }
-       else
-               echo "... column \"oldimage.oi_deleted\" is already of type \"smallint\"\n";
 
-
-       foreach ($newindexes as $ni) {
-               if (pg_index_exists($ni[0], $ni[1])) {
-                       echo "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n";
+       foreach ( $newindexes as $ni ) {
+               if ( pg_index_exists( $ni[0], $ni[1] ) ) {
+                       wfOut( "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n" );
                        continue;
                }
-               echo "Creating index \"$ni[1]\" on table \"$ni[0]\" $ni[2]\n";
+               wfOut( "Creating index \"$ni[1]\" on table \"$ni[0]\" $ni[2]\n" );
                $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
        }
 
-       foreach ($newrules as $nr) {
-               if ($wgDatabase->ruleExists($nr[0], $nr[1])) {
-                       echo "... rule \"$nr[1]\" on table \"$nr[0]\" already exists\n";
+       foreach ( $newrules as $nr ) {
+               if ( $wgDatabase->ruleExists( $nr[0], $nr[1] ) ) {
+                       wfOut( "... rule \"$nr[1]\" on table \"$nr[0]\" already exists\n" );
                        continue;
                }
-               echo "Adding rule \"$nr[1]\" to table \"$nr[0]\"\n";
-               dbsource(archive($nr[2]));
+               wfOut( "Adding rule \"$nr[1]\" to table \"$nr[0]\"\n" );
+               $wgDatabase->sourceFile( archive( $nr[2] ) );
        }
 
-       if ($wgDatabase->hasConstraint("oldimage_oi_name_fkey")) {
-               echo "Making foriegn key on table \"oldimage\" (to image) a cascade delete\n";
-               $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
-               $wgDatabase->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascade ".
-                       "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE" );
+       if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
+               wfOut( "... table \"oldimage\" has correct cascading delete/update foreign key to image\n" );
+       } else {
+               if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey" ) ) {
+                       $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
+               }
+               if ( $wgDatabase->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
+                       $wgDatabase->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
+               }
+               wfOut( "Making foreign key on table \"oldimage\" (to image) a cascade delete/update\n" );
+               $wgDatabase->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
+                       "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" );
        }
-       else
-               echo "... table \"oldimage\" has correct cascade delete foreign key to image\n";
 
-       if (!$wgDatabase->triggerExists("page", "page_deleted")) {
-               echo "Adding function and trigger \"page_deleted\" to table \"page\"\n";
-               dbsource(archive('patch-page_deleted.sql'));
+       if ( !$wgDatabase->triggerExists( "page", "page_deleted" ) ) {
+               wfOut( "Adding function and trigger \"page_deleted\" to table \"page\"\n" );
+               $wgDatabase->sourceFile( archive( 'patch-page_deleted.sql' ) );
+       } else {
+               wfOut( "... table \"page\" has \"page_deleted\" trigger\n" );
        }
-       else
-               echo "... table \"page\" has \"page_deleted\" trigger\n";
 
-       $fi = $wgDatabase->fieldInfo("recentchanges", "rc_cur_id");
-       if (!$fi->nullable()) {
-               echo "Removing NOT NULL constraint from \"recentchanges.rc_cur_id\"\n";
-               dbsource(archive('patch-rc_cur_id-not-null.sql'));
+       $fi = $wgDatabase->fieldInfo( "recentchanges", "rc_cur_id" );
+       if ( !$fi->nullable() ) {
+               wfOut( "Removing NOT NULL constraint from \"recentchanges.rc_cur_id\"\n" );
+               $wgDatabase->sourceFile( archive( 'patch-rc_cur_id-not-null.sql' ) );
+       } else {
+               wfOut( "... column \"recentchanges.rc_cur_id\" has a NOT NULL constraint\n" );
        }
-       else
-               echo "... column \"recentchanges.rc_cur_id\" has a NOT NULL constraint\n";
 
-       $pu = pg_describe_index("pagelink_unique");
-       if (!is_null($pu) && ($pu[0] != "pl_from" || $pu[1] != "pl_namespace" || $pu[2] != "pl_title")) {
-               echo "Dropping obsolete version of index \"pagelink_unique index\"\n";
-               $wgDatabase->query("DROP INDEX pagelink_unique");
+       $pu = pg_describe_index( "pagelink_unique" );
+       if ( !is_null( $pu ) && ( $pu[0] != "pl_from" || $pu[1] != "pl_namespace" || $pu[2] != "pl_title" ) ) {
+               wfOut( "Dropping obsolete version of index \"pagelink_unique index\"\n" );
+               $wgDatabase->query( "DROP INDEX pagelink_unique" );
                $pu = null;
+       } else {
+               wfOut( "... obsolete version of index \"pagelink_unique index\" does not exist\n" );
        }
-       else
-               echo "... obsolete version of index \"pagelink_unique index\" does not exist\n";
 
-       if (is_null($pu)) {
-               echo "Creating index \"pagelink_unique index\"\n";
-               $wgDatabase->query("CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)");
+       if ( is_null( $pu ) ) {
+               wfOut( "Creating index \"pagelink_unique index\"\n" );
+               $wgDatabase->query( "CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)" );
+       } else {
+               wfOut( "... index \"pagelink_unique_index\" already exists\n" );
        }
-       else
-               echo "... index \"pagelink_unique_index\" already exists\n";
 
-       if (pg_fkey_deltype("revision_rev_user_fkey") == 'r') {
-               echo "... constraint \"revision_rev_user_fkey\" is ON DELETE RESTRICT\n";
-       }
-       else {
-               echo "Changing constraint \"revision_rev_user_fkey\" to ON DELETE RESTRICT\n";
-               dbsource(archive('patch-revision_rev_user_fkey.sql'));
+       if ( pg_fkey_deltype( "revision_rev_user_fkey" ) == 'r' ) {
+               wfOut( "... constraint \"revision_rev_user_fkey\" is ON DELETE RESTRICT\n" );
+       } else {
+               wfOut( "Changing constraint \"revision_rev_user_fkey\" to ON DELETE RESTRICT\n" );
+               $wgDatabase->sourceFile( archive( 'patch-revision_rev_user_fkey.sql' ) );
        }
 
        # Fix ipb_address index
-       if (pg_index_exists('ipblocks', 'ipb_address' )) {
-               echo "Removing deprecated index 'ipb_address'...\n";
-               $wgDatabase->query('DROP INDEX ipb_address');
+       if ( pg_index_exists( 'ipblocks', 'ipb_address' ) ) {
+               wfOut( "Removing deprecated index 'ipb_address'...\n" );
+               $wgDatabase->query( 'DROP INDEX ipb_address' );
        }
-       if (pg_index_exists('ipblocks', 'ipb_address_unique' )) {
-               echo "... have ipb_address_unique\n";
+       if ( pg_index_exists( 'ipblocks', 'ipb_address_unique' ) ) {
+               wfOut( "... have ipb_address_unique\n" );
+       } else {
+               wfOut( "Adding ipb_address_unique index\n" );
+               $wgDatabase->sourceFile( archive( 'patch-ipb_address_unique.sql' ) );
        }
-       else {
-               echo "Adding ipb_address_unique index\n";
-               dbsource(archive('patch-ipb_address_unique.sql'));
+       
+       # Fix iwlinks index
+       if ( pg_index_exists( 'iwlinks', 'iwl_prefix' ) ) {
+               wfOut( "Replacing index 'iwl_prefix' with 'iwl_prefix_from_title'...\n" );
+               $wgDatabase->sourceFile( archive( 'patch-rename-iwl_prefix.sql' ) );
        }
 
-       global $wgExtNewTables, $wgExtPGNewFields, $wgExtNewIndexes;
+       global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
        # Add missing extension tables
        foreach ( $wgExtNewTables as $nt ) {
-               if ($wgDatabase->tableExists($nt[0])) {
-                       echo "... table \"$nt[0]\" already exists\n";
+               if ( $wgDatabase->tableExists( $nt[0] ) ) {
+                       wfOut( "... table \"$nt[0]\" already exists\n" );
                        continue;
                }
-               echo "Creating table \"$nt[0]\"\n";
-               dbsource($nt[1]);
+               wfOut( "Creating table \"$nt[0]\"\n" );
+               $wgDatabase->sourceFile( $nt[1] );
        }
        # Add missing extension fields
        foreach ( $wgExtPGNewFields as $nc ) {
-               $fi = $wgDatabase->fieldInfo($nc[0], $nc[1]);
-               if (!is_null($fi)) {
-                       echo "... column \"$nc[0].$nc[1]\" already exists\n";
+               $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
+               if ( !is_null( $fi ) ) {
+                       wfOut( "... column \"$nc[0].$nc[1]\" already exists\n" );
                        continue;
                }
-               echo "Adding column \"$nc[0].$nc[1]\"\n";
+               wfOut( "Adding column \"$nc[0].$nc[1]\"\n" );
                $wgDatabase->query( "ALTER TABLE $nc[0] ADD $nc[1] $nc[2]" );
        }
+       # Change altered columns
+       foreach ( $wgExtPGAlteredFields as $nc ) {
+               $fi = $wgDatabase->fieldInfo( $nc[0], $nc[1] );
+               if ( is_null( $fi ) ) {
+                       wfOut( "WARNING! Column \"$nc[0].$nc[1]\" does not exist but had an alter request! Please report this.\n" );
+                       continue;
+               }
+               $oldtype = $fi->type();
+               $newtype = strtolower( $nc[2] );
+               if ( $oldtype === $newtype ) {
+                       wfOut( "... column \"$nc[0].$nc[1]\" has correct type of \"$newtype\"\n" );
+                       continue;
+               }
+               $command = "ALTER TABLE $nc[0] ALTER $nc[1] TYPE $nc[2]";
+               if ( isset( $nc[3] ) ) {
+                       $command .= " USING $nc[3]";
+               }
+               wfOut( "Altering column \"$nc[0].$nc[1]\" from type \"$oldtype\" to \"$newtype\"\n" );
+               $wgDatabase->query( $command );
+       }
        # Add missing extension indexes
        foreach ( $wgExtNewIndexes as $ni ) {
-               if (pg_index_exists($ni[0], $ni[1])) {
-                       echo "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n";
+               if ( pg_index_exists( $ni[0], $ni[1] ) ) {
+                       wfOut( "... index \"$ni[1]\" on table \"$ni[0]\" already exists\n" );
                        continue;
                }
-               echo "Creating index \"$ni[1]\" on table \"$ni[0]\"\n";
-               dbsource($ni[2]);
+               wfOut( "Creating index \"$ni[1]\" on table \"$ni[0]\"\n" );
+               if ( preg_match( '/^\(/', $ni[2] ) ) {
+                       $wgDatabase->query( "CREATE INDEX $ni[1] ON $ni[0] $ni[2]" );
+               }
+               else {
+                       $wgDatabase->sourceFile( $ni[2] );
+               }
+       }
+
+       foreach ( $deferredcols AS $dc ) {
+               $fi = $wgDatabase->fieldInfo( $dc[0], $dc[1] );
+               if ( is_null( $fi ) ) {
+                       wfOut( "WARNING! Column \"$dc[0].$dc[1]\" does not exist but it should! Please report this.\n" );
+                       continue;
+               }
+               if ( $fi->is_deferred() && $fi->is_deferrable() ) {
+                       continue;
+               }
+               wfOut( "Altering column \"$dc[0].$dc[1]\" to be DEFERRABLE INITIALLY DEFERRED\n" );
+               $conname = $fi->conname();
+               $clause = $dc[2];
+               $command = "ALTER TABLE $dc[0] DROP CONSTRAINT $conname";
+               $wgDatabase->query( $command );
+               $command = "ALTER TABLE $dc[0] ADD CONSTRAINT $conname FOREIGN KEY ($dc[1]) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
+               $wgDatabase->query( $command );
        }
 
        # Tweak the page_title tsearch2 trigger to filter out slashes
        # This is create or replace, so harmless to call if not needed
-       dbsource(archive('patch-ts2pagetitle.sql'));
-
-       ## If the server is 8.3 or higher, rewrite the tsearch2 triggers
-       ## in case they have the old 'default' versions
-       if ( $numver >= 8.3 )
-               dbsource(archive('patch-tsearch2funcs.sql'));
-
-       ## Put a new row in the mediawiki_version table
-       $wgDatabase->insert( 'mediawiki_version',
-               array(
-                       'type' => 'Update',
-                       'ctype' => 'U',
-                       'mw_version' => $wgVersion,
-                       'pg_version' => $version,
-                       'sql_version' => '$LastChangedRevision$',
-                       'sql_date' => '$LastChangedDate$',
-               ) );
+       $wgDatabase->sourceFile( archive( 'patch-ts2pagetitle.sql' ) );
+
+       # # If the server is 8.3 or higher, rewrite the tsearch2 triggers
+       # # in case they have the old 'default' versions
+       if ( $numver >= 8.3 ) {
+               $wgDatabase->sourceFile( archive( 'patch-tsearch2funcs.sql' ) );
+       }
        return;
 }