[ 'addField', 'categorylinks', 'cl_collation', 'patch-categorylinks-better-collation.sql' ],
[ 'addTable', 'module_deps', 'patch-module_deps.sql' ],
[ 'dropIndex', 'archive', 'ar_page_revid', 'patch-archive_kill_ar_page_revid.sql' ],
- [ 'addIndex', 'archive', 'ar_revid', 'patch-archive_ar_revid.sql' ],
+ [ 'addIndexIfNoneExist',
+ 'archive', [ 'ar_revid', 'ar_revid_uniq' ], 'patch-archive_ar_revid.sql' ],
// 1.18
[ 'addIndex', 'user', 'user_email', 'patch-user_email_index.sql' ],
[ 'populateExternallinksIndex60' ],
[ 'modifyfield', 'externallinks', 'el_index_60',
'patch-externallinks-el_index_60-drop-default.sql' ],
+ [ 'runMaintenance', DeduplicateArchiveRevId::class, 'maintenance/deduplicateArchiveRevId.php' ],
+ [ 'addField', 'change_tag', 'ct_tag_id', 'patch-change_tag-tag_id.sql' ],
+ [ 'addIndex', 'archive', 'ar_revid_uniq', 'patch-archive-ar_rev_id-unique.sql' ],
];
}