MediaWiki  REL1_24
PostgresUpdater.php
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00001 <?php
00030 class PostgresUpdater extends DatabaseUpdater {
00031 
00035     protected $db;
00036 
00042     protected function getCoreUpdateList() {
00043         return array(
00044             # rename tables 1.7.3
00045             # r15791 Change reserved word table names "user" and "text"
00046             array( 'renameTable', 'user', 'mwuser' ),
00047             array( 'renameTable', 'text', 'pagecontent' ),
00048             array( 'renameIndex', 'mwuser', 'user_pkey', 'mwuser_pkey' ),
00049             array( 'renameIndex', 'mwuser', 'user_user_name_key', 'mwuser_user_name_key' ),
00050             array( 'renameIndex', 'pagecontent', 'text_pkey', 'pagecontent_pkey' ),
00051 
00052             # renamed sequences
00053             array( 'renameSequence', 'ipblocks_ipb_id_val', 'ipblocks_ipb_id_seq' ),
00054             array( 'renameSequence', 'rev_rev_id_val', 'revision_rev_id_seq' ),
00055             array( 'renameSequence', 'text_old_id_val', 'text_old_id_seq' ),
00056             array( 'renameSequence', 'rc_rc_id_seq', 'recentchanges_rc_id_seq' ),
00057             array( 'renameSequence', 'log_log_id_seq', 'logging_log_id_seq' ),
00058             array( 'renameSequence', 'pr_id_val', 'page_restrictions_pr_id_seq' ),
00059             array( 'renameSequence', 'us_id_seq', 'uploadstash_us_id_seq' ),
00060 
00061             # since r58263
00062             array( 'renameSequence', 'category_id_seq', 'category_cat_id_seq' ),
00063 
00064             # new sequences if not renamed above
00065             array( 'addSequence', 'logging', false, 'logging_log_id_seq' ),
00066             array( 'addSequence', 'page_restrictions', false, 'page_restrictions_pr_id_seq' ),
00067             array( 'addSequence', 'filearchive', 'fa_id', 'filearchive_fa_id_seq' ),
00068             array( 'addSequence', 'archive', false, 'archive_ar_id_seq' ),
00069             array( 'addSequence', 'externallinks', false, 'externallinks_el_id_seq' ),
00070 
00071             # new tables
00072             array( 'addTable', 'category', 'patch-category.sql' ),
00073             array( 'addTable', 'page', 'patch-page.sql' ),
00074             array( 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ),
00075             array( 'addTable', 'page_props', 'patch-page_props.sql' ),
00076             array( 'addTable', 'page_restrictions', 'patch-page_restrictions.sql' ),
00077             array( 'addTable', 'profiling', 'patch-profiling.sql' ),
00078             array( 'addTable', 'protected_titles', 'patch-protected_titles.sql' ),
00079             array( 'addTable', 'redirect', 'patch-redirect.sql' ),
00080             array( 'addTable', 'updatelog', 'patch-updatelog.sql' ),
00081             array( 'addTable', 'change_tag', 'patch-change_tag.sql' ),
00082             array( 'addTable', 'tag_summary', 'patch-tag_summary.sql' ),
00083             array( 'addTable', 'valid_tag', 'patch-valid_tag.sql' ),
00084             array( 'addTable', 'user_properties', 'patch-user_properties.sql' ),
00085             array( 'addTable', 'log_search', 'patch-log_search.sql' ),
00086             array( 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ),
00087             array( 'addTable', 'iwlinks', 'patch-iwlinks.sql' ),
00088             array( 'addTable', 'msg_resource', 'patch-msg_resource.sql' ),
00089             array( 'addTable', 'msg_resource_links', 'patch-msg_resource_links.sql' ),
00090             array( 'addTable', 'module_deps', 'patch-module_deps.sql' ),
00091             array( 'addTable', 'uploadstash', 'patch-uploadstash.sql' ),
00092             array( 'addTable', 'user_former_groups', 'patch-user_former_groups.sql' ),
00093             array( 'addTable', 'sites', 'patch-sites.sql' ),
00094 
00095             # Needed before new field
00096             array( 'convertArchive2' ),
00097 
00098             # new fields
00099             array( 'addPgField', 'updatelog', 'ul_value', 'TEXT' ),
00100             array( 'addPgField', 'archive', 'ar_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
00101             array( 'addPgField', 'archive', 'ar_len', 'INTEGER' ),
00102             array( 'addPgField', 'archive', 'ar_page_id', 'INTEGER' ),
00103             array( 'addPgField', 'archive', 'ar_parent_id', 'INTEGER' ),
00104             array( 'addPgField', 'archive', 'ar_content_model', 'TEXT' ),
00105             array( 'addPgField', 'archive', 'ar_content_format', 'TEXT' ),
00106             array( 'addPgField', 'categorylinks', 'cl_sortkey_prefix', "TEXT NOT NULL DEFAULT ''" ),
00107             array( 'addPgField', 'categorylinks', 'cl_collation', "TEXT NOT NULL DEFAULT 0" ),
00108             array( 'addPgField', 'categorylinks', 'cl_type', "TEXT NOT NULL DEFAULT 'page'" ),
00109             array( 'addPgField', 'image', 'img_sha1', "TEXT NOT NULL DEFAULT ''" ),
00110             array( 'addPgField', 'ipblocks', 'ipb_allow_usertalk', 'SMALLINT NOT NULL DEFAULT 0' ),
00111             array( 'addPgField', 'ipblocks', 'ipb_anon_only', 'SMALLINT NOT NULL DEFAULT 0' ),
00112             array( 'addPgField', 'ipblocks', 'ipb_by_text', "TEXT NOT NULL DEFAULT ''" ),
00113             array( 'addPgField', 'ipblocks', 'ipb_block_email', 'SMALLINT NOT NULL DEFAULT 0' ),
00114             array( 'addPgField', 'ipblocks', 'ipb_create_account', 'SMALLINT NOT NULL DEFAULT 1' ),
00115             array( 'addPgField', 'ipblocks', 'ipb_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
00116             array( 'addPgField', 'ipblocks', 'ipb_enable_autoblock', 'SMALLINT NOT NULL DEFAULT 1' ),
00117             array( 'addPgField', 'ipblocks', 'ipb_parent_block_id',
00118                 'INTEGER DEFAULT NULL REFERENCES ipblocks(ipb_id) ' .
00119                 'ON DELETE SET NULL DEFERRABLE INITIALLY DEFERRED' ),
00120             array( 'addPgField', 'filearchive', 'fa_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
00121             array( 'addPgField', 'filearchive', 'fa_sha1', "TEXT NOT NULL DEFAULT ''" ),
00122             array( 'addPgField', 'logging', 'log_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
00123             array( 'addPgField', 'logging', 'log_id',
00124                 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ),
00125             array( 'addPgField', 'logging', 'log_params', 'TEXT' ),
00126             array( 'addPgField', 'mwuser', 'user_editcount', 'INTEGER' ),
00127             array( 'addPgField', 'mwuser', 'user_newpass_time', 'TIMESTAMPTZ' ),
00128             array( 'addPgField', 'oldimage', 'oi_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
00129             array( 'addPgField', 'oldimage', 'oi_major_mime', "TEXT NOT NULL DEFAULT 'unknown'" ),
00130             array( 'addPgField', 'oldimage', 'oi_media_type', 'TEXT' ),
00131             array( 'addPgField', 'oldimage', 'oi_metadata', "BYTEA NOT NULL DEFAULT ''" ),
00132             array( 'addPgField', 'oldimage', 'oi_minor_mime', "TEXT NOT NULL DEFAULT 'unknown'" ),
00133             array( 'addPgField', 'oldimage', 'oi_sha1', "TEXT NOT NULL DEFAULT ''" ),
00134             array( 'addPgField', 'page', 'page_content_model', 'TEXT' ),
00135             array( 'addPgField', 'page_restrictions', 'pr_id',
00136                 "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_seq')" ),
00137             array( 'addPgField', 'profiling', 'pf_memory', 'NUMERIC(18,10) NOT NULL DEFAULT 0' ),
00138             array( 'addPgField', 'recentchanges', 'rc_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
00139             array( 'addPgField', 'recentchanges', 'rc_log_action', 'TEXT' ),
00140             array( 'addPgField', 'recentchanges', 'rc_log_type', 'TEXT' ),
00141             array( 'addPgField', 'recentchanges', 'rc_logid', 'INTEGER NOT NULL DEFAULT 0' ),
00142             array( 'addPgField', 'recentchanges', 'rc_new_len', 'INTEGER' ),
00143             array( 'addPgField', 'recentchanges', 'rc_old_len', 'INTEGER' ),
00144             array( 'addPgField', 'recentchanges', 'rc_params', 'TEXT' ),
00145             array( 'addPgField', 'redirect', 'rd_interwiki', 'TEXT NULL' ),
00146             array( 'addPgField', 'redirect', 'rd_fragment', 'TEXT NULL' ),
00147             array( 'addPgField', 'revision', 'rev_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
00148             array( 'addPgField', 'revision', 'rev_len', 'INTEGER' ),
00149             array( 'addPgField', 'revision', 'rev_parent_id', 'INTEGER DEFAULT NULL' ),
00150             array( 'addPgField', 'revision', 'rev_content_model', 'TEXT' ),
00151             array( 'addPgField', 'revision', 'rev_content_format', 'TEXT' ),
00152             array( 'addPgField', 'site_stats', 'ss_active_users', "INTEGER DEFAULT '-1'" ),
00153             array( 'addPgField', 'user_newtalk', 'user_last_timestamp', 'TIMESTAMPTZ' ),
00154             array( 'addPgField', 'logging', 'log_user_text', "TEXT NOT NULL DEFAULT ''" ),
00155             array( 'addPgField', 'logging', 'log_page', 'INTEGER' ),
00156             array( 'addPgField', 'interwiki', 'iw_api', "TEXT NOT NULL DEFAULT ''" ),
00157             array( 'addPgField', 'interwiki', 'iw_wikiid', "TEXT NOT NULL DEFAULT ''" ),
00158             array( 'addPgField', 'revision', 'rev_sha1', "TEXT NOT NULL DEFAULT ''" ),
00159             array( 'addPgField', 'archive', 'ar_sha1', "TEXT NOT NULL DEFAULT ''" ),
00160             array( 'addPgField', 'uploadstash', 'us_chunk_inx', "INTEGER NULL" ),
00161             array( 'addPgField', 'job', 'job_timestamp', "TIMESTAMPTZ" ),
00162             array( 'addPgField', 'job', 'job_random', "INTEGER NOT NULL DEFAULT 0" ),
00163             array( 'addPgField', 'job', 'job_attempts', "INTEGER NOT NULL DEFAULT 0" ),
00164             array( 'addPgField', 'job', 'job_token', "TEXT NOT NULL DEFAULT ''" ),
00165             array( 'addPgField', 'job', 'job_token_timestamp', "TIMESTAMPTZ" ),
00166             array( 'addPgField', 'job', 'job_sha1', "TEXT NOT NULL DEFAULT ''" ),
00167             array( 'addPgField', 'archive', 'ar_id',
00168                 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('archive_ar_id_seq')" ),
00169             array( 'addPgField', 'externallinks', 'el_id',
00170                 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('externallinks_el_id_seq')" ),
00171             array( 'addPgField', 'uploadstash', 'us_props', "BYTEA" ),
00172 
00173             # type changes
00174             array( 'changeField', 'archive', 'ar_deleted', 'smallint', '' ),
00175             array( 'changeField', 'archive', 'ar_minor_edit', 'smallint',
00176                 'ar_minor_edit::smallint DEFAULT 0' ),
00177             array( 'changeField', 'filearchive', 'fa_deleted', 'smallint', '' ),
00178             array( 'changeField', 'filearchive', 'fa_height', 'integer', '' ),
00179             array( 'changeField', 'filearchive', 'fa_metadata', 'bytea', "decode(fa_metadata,'escape')" ),
00180             array( 'changeField', 'filearchive', 'fa_size', 'integer', '' ),
00181             array( 'changeField', 'filearchive', 'fa_width', 'integer', '' ),
00182             array( 'changeField', 'filearchive', 'fa_storage_group', 'text', '' ),
00183             array( 'changeField', 'filearchive', 'fa_storage_key', 'text', '' ),
00184             array( 'changeField', 'image', 'img_metadata', 'bytea', "decode(img_metadata,'escape')" ),
00185             array( 'changeField', 'image', 'img_size', 'integer', '' ),
00186             array( 'changeField', 'image', 'img_width', 'integer', '' ),
00187             array( 'changeField', 'image', 'img_height', 'integer', '' ),
00188             array( 'changeField', 'interwiki', 'iw_local', 'smallint', 'iw_local::smallint' ),
00189             array( 'changeField', 'interwiki', 'iw_trans', 'smallint', 'iw_trans::smallint DEFAULT 0' ),
00190             array( 'changeField', 'ipblocks', 'ipb_auto', 'smallint', 'ipb_auto::smallint DEFAULT 0' ),
00191             array( 'changeField', 'ipblocks', 'ipb_anon_only', 'smallint',
00192                 "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ),
00193             array( 'changeField', 'ipblocks', 'ipb_create_account', 'smallint',
00194                 "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ),
00195             array( 'changeField', 'ipblocks', 'ipb_enable_autoblock', 'smallint',
00196                 "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ),
00197             array( 'changeField', 'ipblocks', 'ipb_block_email', 'smallint',
00198                 "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ),
00199             array( 'changeField', 'ipblocks', 'ipb_address', 'text', 'ipb_address::text' ),
00200             array( 'changeField', 'ipblocks', 'ipb_deleted', 'smallint', 'ipb_deleted::smallint DEFAULT 0' ),
00201             array( 'changeField', 'mwuser', 'user_token', 'text', '' ),
00202             array( 'changeField', 'mwuser', 'user_email_token', 'text', '' ),
00203             array( 'changeField', 'objectcache', 'keyname', 'text', '' ),
00204             array( 'changeField', 'oldimage', 'oi_height', 'integer', '' ),
00205             array( 'changeField', 'oldimage', 'oi_metadata', 'bytea', "decode(img_metadata,'escape')" ),
00206             array( 'changeField', 'oldimage', 'oi_size', 'integer', '' ),
00207             array( 'changeField', 'oldimage', 'oi_width', 'integer', '' ),
00208             array( 'changeField', 'page', 'page_is_redirect', 'smallint',
00209                 'page_is_redirect::smallint DEFAULT 0' ),
00210             array( 'changeField', 'page', 'page_is_new', 'smallint', 'page_is_new::smallint DEFAULT 0' ),
00211             array( 'changeField', 'querycache', 'qc_value', 'integer', '' ),
00212             array( 'changeField', 'querycachetwo', 'qcc_value', 'integer', '' ),
00213             array( 'changeField', 'recentchanges', 'rc_bot', 'smallint', 'rc_bot::smallint DEFAULT 0' ),
00214             array( 'changeField', 'recentchanges', 'rc_deleted', 'smallint', '' ),
00215             array( 'changeField', 'recentchanges', 'rc_minor', 'smallint', 'rc_minor::smallint DEFAULT 0' ),
00216             array( 'changeField', 'recentchanges', 'rc_new', 'smallint', 'rc_new::smallint DEFAULT 0' ),
00217             array( 'changeField', 'recentchanges', 'rc_type', 'smallint', 'rc_type::smallint DEFAULT 0' ),
00218             array( 'changeField', 'recentchanges', 'rc_patrolled', 'smallint',
00219                 'rc_patrolled::smallint DEFAULT 0' ),
00220             array( 'changeField', 'revision', 'rev_deleted', 'smallint', 'rev_deleted::smallint DEFAULT 0' ),
00221             array( 'changeField', 'revision', 'rev_minor_edit', 'smallint',
00222                 'rev_minor_edit::smallint DEFAULT 0' ),
00223             array( 'changeField', 'templatelinks', 'tl_namespace', 'smallint', 'tl_namespace::smallint' ),
00224             array( 'changeField', 'user_newtalk', 'user_ip', 'text', 'host(user_ip)' ),
00225             array( 'changeField', 'uploadstash', 'us_image_bits', 'smallint', '' ),
00226             array( 'changeField', 'profiling', 'pf_time', 'float', '' ),
00227             array( 'changeField', 'profiling', 'pf_memory', 'float', '' ),
00228 
00229             # null changes
00230             array( 'changeNullableField', 'oldimage', 'oi_bits', 'NULL' ),
00231             array( 'changeNullableField', 'oldimage', 'oi_timestamp', 'NULL' ),
00232             array( 'changeNullableField', 'oldimage', 'oi_major_mime', 'NULL' ),
00233             array( 'changeNullableField', 'oldimage', 'oi_minor_mime', 'NULL' ),
00234             array( 'changeNullableField', 'image', 'img_metadata', 'NOT NULL' ),
00235             array( 'changeNullableField', 'filearchive', 'fa_metadata', 'NOT NULL' ),
00236             array( 'changeNullableField', 'recentchanges', 'rc_cur_id', 'NULL' ),
00237             array( 'changeNullableField', 'recentchanges', 'rc_cur_time', 'NULL' ),
00238 
00239             array( 'checkOiDeleted' ),
00240 
00241             # New indexes
00242             array( 'addPgIndex', 'archive', 'archive_user_text', '(ar_user_text)' ),
00243             array( 'addPgIndex', 'image', 'img_sha1', '(img_sha1)' ),
00244             array( 'addPgIndex', 'ipblocks', 'ipb_parent_block_id', '(ipb_parent_block_id)' ),
00245             array( 'addPgIndex', 'oldimage', 'oi_sha1', '(oi_sha1)' ),
00246             array( 'addPgIndex', 'page', 'page_mediawiki_title', '(page_title) WHERE page_namespace = 8' ),
00247             array( 'addPgIndex', 'pagelinks', 'pagelinks_title', '(pl_title)' ),
00248             array( 'addPgIndex', 'page_props', 'pp_propname_page', '(pp_propname, pp_page)' ),
00249             array( 'addPgIndex', 'revision', 'rev_text_id_idx', '(rev_text_id)' ),
00250             array( 'addPgIndex', 'recentchanges', 'rc_timestamp_bot', '(rc_timestamp) WHERE rc_bot = 0' ),
00251             array( 'addPgIndex', 'templatelinks', 'templatelinks_from', '(tl_from)' ),
00252             array( 'addPgIndex', 'watchlist', 'wl_user', '(wl_user)' ),
00253             array( 'addPgIndex', 'watchlist', 'wl_user_notificationtimestamp', '(wl_user, wl_notificationtimestamp)' ),
00254             array( 'addPgIndex', 'logging', 'logging_user_type_time',
00255                 '(log_user, log_type, log_timestamp)' ),
00256             array( 'addPgIndex', 'logging', 'logging_page_id_time', '(log_page,log_timestamp)' ),
00257             array( 'addPgIndex', 'iwlinks', 'iwl_prefix_from_title', '(iwl_prefix, iwl_from, iwl_title)' ),
00258             array( 'addPgIndex', 'iwlinks', 'iwl_prefix_title_from', '(iwl_prefix, iwl_title, iwl_from)' ),
00259             array( 'addPgIndex', 'job', 'job_timestamp_idx', '(job_timestamp)' ),
00260             array( 'addPgIndex', 'job', 'job_sha1', '(job_sha1)' ),
00261             array( 'addPgIndex', 'job', 'job_cmd_token', '(job_cmd, job_token, job_random)' ),
00262             array( 'addPgIndex', 'job', 'job_cmd_token_id', '(job_cmd, job_token, job_id)' ),
00263             array( 'addPgIndex', 'filearchive', 'fa_sha1', '(fa_sha1)' ),
00264             array( 'addPgIndex', 'logging', 'logging_user_text_type_time',
00265                 '(log_user_text, log_type, log_timestamp)' ),
00266             array( 'addPgIndex', 'logging', 'logging_user_text_time', '(log_user_text, log_timestamp)' ),
00267 
00268             array( 'checkIndex', 'pagelink_unique', array(
00269                 array( 'pl_from', 'int4_ops', 'btree', 0 ),
00270                 array( 'pl_namespace', 'int2_ops', 'btree', 0 ),
00271                 array( 'pl_title', 'text_ops', 'btree', 0 ),
00272             ),
00273                 'CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)' ),
00274             array( 'checkIndex', 'cl_sortkey', array(
00275                 array( 'cl_to', 'text_ops', 'btree', 0 ),
00276                 array( 'cl_sortkey', 'text_ops', 'btree', 0 ),
00277                 array( 'cl_from', 'int4_ops', 'btree', 0 ),
00278             ),
00279                 'CREATE INDEX cl_sortkey ON "categorylinks" ' .
00280                     'USING "btree" ("cl_to", "cl_sortkey", "cl_from")' ),
00281             array( 'checkIndex', 'iwl_prefix_title_from', array(
00282                 array( 'iwl_prefix', 'text_ops', 'btree', 0 ),
00283                 array( 'iwl_title', 'text_ops', 'btree', 0 ),
00284                 array( 'iwl_from', 'int4_ops', 'btree', 0 ),
00285             ),
00286             'CREATE INDEX iwl_prefix_title_from ON "iwlinks" ' .
00287                 'USING "btree" ("iwl_prefix", "iwl_title", "iwl_from")' ),
00288             array( 'checkIndex', 'logging_times', array(
00289                 array( 'log_timestamp', 'timestamptz_ops', 'btree', 0 ),
00290             ),
00291             'CREATE INDEX "logging_times" ON "logging" USING "btree" ("log_timestamp")' ),
00292             array( 'dropIndex', 'oldimage', 'oi_name' ),
00293             array( 'checkIndex', 'oi_name_archive_name', array(
00294                 array( 'oi_name', 'text_ops', 'btree', 0 ),
00295                 array( 'oi_archive_name', 'text_ops', 'btree', 0 ),
00296             ),
00297             'CREATE INDEX "oi_name_archive_name" ON "oldimage" ' .
00298                 'USING "btree" ("oi_name", "oi_archive_name")' ),
00299             array( 'checkIndex', 'oi_name_timestamp', array(
00300                 array( 'oi_name', 'text_ops', 'btree', 0 ),
00301                 array( 'oi_timestamp', 'timestamptz_ops', 'btree', 0 ),
00302             ),
00303             'CREATE INDEX "oi_name_timestamp" ON "oldimage" ' .
00304                 'USING "btree" ("oi_name", "oi_timestamp")' ),
00305             array( 'checkIndex', 'page_main_title', array(
00306                 array( 'page_title', 'text_pattern_ops', 'btree', 0 ),
00307             ),
00308             'CREATE INDEX "page_main_title" ON "page" ' .
00309                 'USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 0)' ),
00310             array( 'checkIndex', 'page_mediawiki_title', array(
00311                 array( 'page_title', 'text_pattern_ops', 'btree', 0 ),
00312             ),
00313             'CREATE INDEX "page_mediawiki_title" ON "page" ' .
00314                 'USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 8)' ),
00315             array( 'checkIndex', 'page_project_title', array(
00316                 array( 'page_title', 'text_pattern_ops', 'btree', 0 ),
00317             ),
00318             'CREATE INDEX "page_project_title" ON "page" ' .
00319                 'USING "btree" ("page_title" "text_pattern_ops") ' .
00320                 'WHERE ("page_namespace" = 4)' ),
00321             array( 'checkIndex', 'page_talk_title', array(
00322                 array( 'page_title', 'text_pattern_ops', 'btree', 0 ),
00323             ),
00324             'CREATE INDEX "page_talk_title" ON "page" ' .
00325                 'USING "btree" ("page_title" "text_pattern_ops") ' .
00326                 'WHERE ("page_namespace" = 1)' ),
00327             array( 'checkIndex', 'page_user_title', array(
00328                 array( 'page_title', 'text_pattern_ops', 'btree', 0 ),
00329             ),
00330             'CREATE INDEX "page_user_title" ON "page" ' .
00331                 'USING "btree" ("page_title" "text_pattern_ops") WHERE ' .
00332                 '("page_namespace" = 2)' ),
00333             array( 'checkIndex', 'page_utalk_title', array(
00334                 array( 'page_title', 'text_pattern_ops', 'btree', 0 ),
00335             ),
00336             'CREATE INDEX "page_utalk_title" ON "page" ' .
00337                 'USING "btree" ("page_title" "text_pattern_ops") ' .
00338                 'WHERE ("page_namespace" = 3)' ),
00339             array( 'checkIndex', 'ts2_page_text', array(
00340                 array( 'textvector', 'tsvector_ops', 'gist', 0 ),
00341             ),
00342             'CREATE INDEX "ts2_page_text" ON "pagecontent" USING "gist" ("textvector")' ),
00343             array( 'checkIndex', 'ts2_page_title', array(
00344                 array( 'titlevector', 'tsvector_ops', 'gist', 0 ),
00345             ),
00346             'CREATE INDEX "ts2_page_title" ON "page" USING "gist" ("titlevector")' ),
00347 
00348             array( 'checkOiNameConstraint' ),
00349             array( 'checkPageDeletedTrigger' ),
00350             array( 'checkRevUserFkey' ),
00351             array( 'dropIndex', 'ipblocks', 'ipb_address' ),
00352             array( 'checkIndex', 'ipb_address_unique', array(
00353                 array( 'ipb_address', 'text_ops', 'btree', 0 ),
00354                 array( 'ipb_user', 'int4_ops', 'btree', 0 ),
00355                 array( 'ipb_auto', 'int2_ops', 'btree', 0 ),
00356                 array( 'ipb_anon_only', 'int2_ops', 'btree', 0 ),
00357             ),
00358             'CREATE UNIQUE INDEX ipb_address_unique ' .
00359                 'ON ipblocks (ipb_address,ipb_user,ipb_auto,ipb_anon_only)' ),
00360 
00361             array( 'checkIwlPrefix' ),
00362 
00363             # All FK columns should be deferred
00364             array( 'changeFkeyDeferrable', 'archive', 'ar_user', 'mwuser(user_id) ON DELETE SET NULL' ),
00365             array( 'changeFkeyDeferrable', 'categorylinks', 'cl_from', 'page(page_id) ON DELETE CASCADE' ),
00366             array( 'changeFkeyDeferrable', 'externallinks', 'el_from', 'page(page_id) ON DELETE CASCADE' ),
00367             array( 'changeFkeyDeferrable', 'filearchive', 'fa_deleted_user',
00368                 'mwuser(user_id) ON DELETE SET NULL' ),
00369             array( 'changeFkeyDeferrable', 'filearchive', 'fa_user', 'mwuser(user_id) ON DELETE SET NULL' ),
00370             array( 'changeFkeyDeferrable', 'image', 'img_user', 'mwuser(user_id) ON DELETE SET NULL' ),
00371             array( 'changeFkeyDeferrable', 'imagelinks', 'il_from', 'page(page_id) ON DELETE CASCADE' ),
00372             array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_by', 'mwuser(user_id) ON DELETE CASCADE' ),
00373             array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_user', 'mwuser(user_id) ON DELETE SET NULL' ),
00374             array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_parent_block_id',
00375                 'ipblocks(ipb_id) ON DELETE SET NULL' ),
00376             array( 'changeFkeyDeferrable', 'langlinks', 'll_from', 'page(page_id) ON DELETE CASCADE' ),
00377             array( 'changeFkeyDeferrable', 'logging', 'log_user', 'mwuser(user_id) ON DELETE SET NULL' ),
00378             array( 'changeFkeyDeferrable', 'oldimage', 'oi_name',
00379                 'image(img_name) ON DELETE CASCADE ON UPDATE CASCADE' ),
00380             array( 'changeFkeyDeferrable', 'oldimage', 'oi_user', 'mwuser(user_id) ON DELETE SET NULL' ),
00381             array( 'changeFkeyDeferrable', 'pagelinks', 'pl_from', 'page(page_id) ON DELETE CASCADE' ),
00382             array( 'changeFkeyDeferrable', 'page_props', 'pp_page', 'page (page_id) ON DELETE CASCADE' ),
00383             array( 'changeFkeyDeferrable', 'page_restrictions', 'pr_page',
00384                 'page(page_id) ON DELETE CASCADE' ),
00385             array( 'changeFkeyDeferrable', 'protected_titles', 'pt_user',
00386                 'mwuser(user_id) ON DELETE SET NULL' ),
00387             array( 'changeFkeyDeferrable', 'recentchanges', 'rc_cur_id',
00388                 'page(page_id) ON DELETE SET NULL' ),
00389             array( 'changeFkeyDeferrable', 'recentchanges', 'rc_user',
00390                 'mwuser(user_id) ON DELETE SET NULL' ),
00391             array( 'changeFkeyDeferrable', 'redirect', 'rd_from', 'page(page_id) ON DELETE CASCADE' ),
00392             array( 'changeFkeyDeferrable', 'revision', 'rev_page', 'page (page_id) ON DELETE CASCADE' ),
00393             array( 'changeFkeyDeferrable', 'revision', 'rev_user', 'mwuser(user_id) ON DELETE RESTRICT' ),
00394             array( 'changeFkeyDeferrable', 'templatelinks', 'tl_from', 'page(page_id) ON DELETE CASCADE' ),
00395             array( 'changeFkeyDeferrable', 'user_groups', 'ug_user', 'mwuser(user_id) ON DELETE CASCADE' ),
00396             array( 'changeFkeyDeferrable', 'user_newtalk', 'user_id', 'mwuser(user_id) ON DELETE CASCADE' ),
00397             array( 'changeFkeyDeferrable', 'user_properties', 'up_user',
00398                 'mwuser(user_id) ON DELETE CASCADE' ),
00399             array( 'changeFkeyDeferrable', 'watchlist', 'wl_user', 'mwuser(user_id) ON DELETE CASCADE' ),
00400 
00401             # r81574
00402             array( 'addInterwikiType' ),
00403             # end
00404             array( 'tsearchFixes' ),
00405 
00406             // 1.23
00407             array( 'addPgField', 'recentchanges', 'rc_source', "TEXT NOT NULL DEFAULT ''" ),
00408             array( 'addPgField', 'page', 'page_links_updated', "TIMESTAMPTZ NULL" ),
00409             array( 'addPgField', 'mwuser', 'user_password_expires', 'TIMESTAMPTZ NULL' ),
00410             array( 'changeFieldPurgeTable', 'l10n_cache', 'lc_value', 'bytea',
00411                 "replace(lc_value,'\','\\\\')::bytea" ),
00412 
00413             // 1.24
00414             array( 'addPgField', 'page_props', 'pp_sortkey', 'float NULL' ),
00415             array( 'addPgIndex', 'page_props', 'pp_propname_sortkey_page',
00416                     '( pp_propname, pp_sortkey, pp_page ) WHERE ( pp_sortkey IS NOT NULL )' ),
00417             array( 'addPgField', 'page', 'page_lang', 'TEXT default NULL' ),
00418             array( 'addPgField', 'pagelinks', 'pl_from_namespace', 'INTEGER NOT NULL DEFAULT 0' ),
00419             array( 'addPgField', 'templatelinks', 'tl_from_namespace', 'INTEGER NOT NULL DEFAULT 0' ),
00420             array( 'addPgField', 'imagelinks', 'il_from_namespace', 'INTEGER NOT NULL DEFAULT 0' ),
00421         );
00422     }
00423 
00424     protected function getOldGlobalUpdates() {
00425         global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
00426 
00427         $updates = array();
00428 
00429         # Add missing extension tables
00430         foreach ( $wgExtNewTables as $tableRecord ) {
00431             $updates[] = array(
00432                 'addTable', $tableRecord[0], $tableRecord[1], true
00433             );
00434         }
00435 
00436         # Add missing extension fields
00437         foreach ( $wgExtPGNewFields as $fieldRecord ) {
00438             $updates[] = array(
00439                 'addPgField', $fieldRecord[0], $fieldRecord[1],
00440                 $fieldRecord[2]
00441             );
00442         }
00443 
00444         # Change altered columns
00445         foreach ( $wgExtPGAlteredFields as $fieldRecord ) {
00446             $updates[] = array(
00447                 'changeField', $fieldRecord[0], $fieldRecord[1],
00448                 $fieldRecord[2]
00449             );
00450         }
00451 
00452         # Add missing extension indexes
00453         foreach ( $wgExtNewIndexes as $fieldRecord ) {
00454             $updates[] = array(
00455                 'addPgExtIndex', $fieldRecord[0], $fieldRecord[1],
00456                 $fieldRecord[2]
00457             );
00458         }
00459 
00460         return $updates;
00461     }
00462 
00463     protected function describeTable( $table ) {
00464         $q = <<<END
00465 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
00466     WHERE pg_class.relnamespace = pg_namespace.oid
00467       AND attrelid=pg_class.oid AND attnum > 0
00468       AND relname=%s AND nspname=%s
00469 END;
00470         $res = $this->db->query( sprintf( $q,
00471             $this->db->addQuotes( $table ),
00472             $this->db->addQuotes( $this->db->getCoreSchema() ) ) );
00473         if ( !$res ) {
00474             return null;
00475         }
00476 
00477         $cols = array();
00478         foreach ( $res as $r ) {
00479             $cols[] = array(
00480                 "name" => $r[0],
00481                 "ord" => $r[1],
00482             );
00483         }
00484 
00485         return $cols;
00486     }
00487 
00488     function describeIndex( $idx ) {
00489         // first fetch the key (which is a list of columns ords) and
00490         // the table the index applies to (an oid)
00491         $q = <<<END
00492 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
00493     WHERE nspname=%s
00494       AND pg_class.relnamespace = pg_namespace.oid
00495       AND relname=%s
00496       AND indexrelid=pg_class.oid
00497 END;
00498         $res = $this->db->query(
00499             sprintf(
00500                 $q,
00501                 $this->db->addQuotes( $this->db->getCoreSchema() ),
00502                 $this->db->addQuotes( $idx )
00503             )
00504         );
00505         if ( !$res ) {
00506             return null;
00507         }
00508         if ( !( $r = $this->db->fetchRow( $res ) ) ) {
00509             return null;
00510         }
00511 
00512         $indkey = $r[0];
00513         $relid = intval( $r[1] );
00514         $indkeys = explode( ' ', $indkey );
00515 
00516         $colnames = array();
00517         foreach ( $indkeys as $rid ) {
00518             $query = <<<END
00519 SELECT attname FROM pg_class, pg_attribute
00520     WHERE attrelid=$relid
00521       AND attnum=%d
00522       AND attrelid=pg_class.oid
00523 END;
00524             $r2 = $this->db->query( sprintf( $query, $rid ) );
00525             if ( !$r2 ) {
00526                 return null;
00527             }
00528             if ( !( $row2 = $this->db->fetchRow( $r2 ) ) ) {
00529                 return null;
00530             }
00531             $colnames[] = $row2[0];
00532         }
00533 
00534         return $colnames;
00535     }
00536 
00537     function fkeyDeltype( $fkey ) {
00538         $q = <<<END
00539 SELECT confdeltype FROM pg_constraint, pg_namespace
00540     WHERE connamespace=pg_namespace.oid
00541       AND nspname=%s
00542       AND conname=%s;
00543 END;
00544         $r = $this->db->query(
00545             sprintf(
00546                 $q,
00547                 $this->db->addQuotes( $this->db->getCoreSchema() ),
00548                 $this->db->addQuotes( $fkey )
00549             )
00550         );
00551         if ( !( $row = $this->db->fetchRow( $r ) ) ) {
00552             return null;
00553         }
00554 
00555         return $row[0];
00556     }
00557 
00558     function ruleDef( $table, $rule ) {
00559         $q = <<<END
00560 SELECT definition FROM pg_rules
00561     WHERE schemaname = %s
00562       AND tablename = %s
00563       AND rulename = %s
00564 END;
00565         $r = $this->db->query(
00566             sprintf(
00567                 $q,
00568                 $this->db->addQuotes( $this->db->getCoreSchema() ),
00569                 $this->db->addQuotes( $table ),
00570                 $this->db->addQuotes( $rule )
00571             )
00572         );
00573         $row = $this->db->fetchRow( $r );
00574         if ( !$row ) {
00575             return null;
00576         }
00577         $d = $row[0];
00578 
00579         return $d;
00580     }
00581 
00582     protected function addSequence( $table, $pkey, $ns ) {
00583         if ( !$this->db->sequenceExists( $ns ) ) {
00584             $this->output( "Creating sequence $ns\n" );
00585             $this->db->query( "CREATE SEQUENCE $ns" );
00586             if ( $pkey !== false ) {
00587                 $this->setDefault( $table, $pkey, '"nextval"(\'"' . $ns . '"\'::"regclass")' );
00588             }
00589         }
00590     }
00591 
00592     protected function renameSequence( $old, $new ) {
00593         if ( $this->db->sequenceExists( $new ) ) {
00594             $this->output( "...sequence $new already exists.\n" );
00595 
00596             return;
00597         }
00598         if ( $this->db->sequenceExists( $old ) ) {
00599             $this->output( "Renaming sequence $old to $new\n" );
00600             $this->db->query( "ALTER SEQUENCE $old RENAME TO $new" );
00601         }
00602     }
00603 
00604     protected function renameTable( $old, $new, $patch = false ) {
00605         if ( $this->db->tableExists( $old ) ) {
00606             $this->output( "Renaming table $old to $new\n" );
00607             $old = $this->db->realTableName( $old, "quoted" );
00608             $new = $this->db->realTableName( $new, "quoted" );
00609             $this->db->query( "ALTER TABLE $old RENAME TO $new" );
00610             if ( $patch !== false ) {
00611                 $this->applyPatch( $patch );
00612             }
00613         }
00614     }
00615 
00616     protected function renameIndex(
00617         $table, $old, $new, $skipBothIndexExistWarning = false, $a = false, $b = false
00618     ) {
00619         // First requirement: the table must exist
00620         if ( !$this->db->tableExists( $table, __METHOD__ ) ) {
00621             $this->output( "...skipping: '$table' table doesn't exist yet.\n" );
00622 
00623             return;
00624         }
00625 
00626         // Second requirement: the new index must be missing
00627         if ( $this->db->indexExists( $table, $new, __METHOD__ ) ) {
00628             $this->output( "...index $new already set on $table table.\n" );
00629             if ( !$skipBothIndexExistWarning
00630                 && $this->db->indexExists( $table, $old, __METHOD__ )
00631             ) {
00632                 $this->output( "...WARNING: $old still exists, despite it has been " .
00633                     "renamed into $new (which also exists).\n" .
00634                     "            $old should be manually removed if not needed anymore.\n" );
00635             }
00636 
00637             return;
00638         }
00639 
00640         // Third requirement: the old index must exist
00641         if ( !$this->db->indexExists( $table, $old, __METHOD__ ) ) {
00642             $this->output( "...skipping: index $old doesn't exist.\n" );
00643 
00644             return;
00645         }
00646 
00647         $this->db->query( "ALTER INDEX $old RENAME TO $new" );
00648     }
00649 
00650     protected function addPgField( $table, $field, $type ) {
00651         $fi = $this->db->fieldInfo( $table, $field );
00652         if ( !is_null( $fi ) ) {
00653             $this->output( "...column '$table.$field' already exists\n" );
00654 
00655             return;
00656         } else {
00657             $this->output( "Adding column '$table.$field'\n" );
00658             $this->db->query( "ALTER TABLE $table ADD $field $type" );
00659         }
00660     }
00661 
00662     protected function changeField( $table, $field, $newtype, $default ) {
00663         $fi = $this->db->fieldInfo( $table, $field );
00664         if ( is_null( $fi ) ) {
00665             $this->output( "...ERROR: expected column $table.$field to exist\n" );
00666             exit( 1 );
00667         }
00668 
00669         if ( $fi->type() === $newtype ) {
00670             $this->output( "...column '$table.$field' is already of type '$newtype'\n" );
00671         } else {
00672             $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" );
00673             $sql = "ALTER TABLE $table ALTER $field TYPE $newtype";
00674             if ( strlen( $default ) ) {
00675                 $res = array();
00676                 if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) {
00677                     $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]";
00678                     $this->db->query( $sqldef );
00679                     $default = preg_replace( '/\s*DEFAULT .+/', '', $default );
00680                 }
00681                 $sql .= " USING $default";
00682             }
00683             $this->db->query( $sql );
00684         }
00685     }
00686 
00687     protected function changeFieldPurgeTable( $table, $field, $newtype, $default ) {
00688         ## For a cache table, empty it if the field needs to be changed, because the old contents
00689         ## may be corrupted.  If the column is already the desired type, refrain from purging.
00690         $fi = $this->db->fieldInfo( $table, $field );
00691         if ( is_null( $fi ) ) {
00692             $this->output( "...ERROR: expected column $table.$field to exist\n" );
00693             exit( 1 );
00694         }
00695 
00696         if ( $fi->type() === $newtype ) {
00697             $this->output( "...column '$table.$field' is already of type '$newtype'\n" );
00698         } else {
00699             $this->output( "Purging data from cache table '$table'\n" );
00700             $this->db->query( "DELETE from $table" );
00701             $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" );
00702             $sql = "ALTER TABLE $table ALTER $field TYPE $newtype";
00703             if ( strlen( $default ) ) {
00704                 $res = array();
00705                 if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) {
00706                     $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]";
00707                     $this->db->query( $sqldef );
00708                     $default = preg_replace( '/\s*DEFAULT .+/', '', $default );
00709                 }
00710                 $sql .= " USING $default";
00711             }
00712             $this->db->query( $sql );
00713         }
00714     }
00715 
00716     protected function setDefault( $table, $field, $default ) {
00717 
00718         $info = $this->db->fieldInfo( $table, $field );
00719         if ( $info->defaultValue() !== $default ) {
00720             $this->output( "Changing '$table.$field' default value\n" );
00721             $this->db->query( "ALTER TABLE $table ALTER $field SET DEFAULT " . $default );
00722         }
00723     }
00724 
00725     protected function changeNullableField( $table, $field, $null ) {
00726         $fi = $this->db->fieldInfo( $table, $field );
00727         if ( is_null( $fi ) ) {
00728             $this->output( "...ERROR: expected column $table.$field to exist\n" );
00729             exit( 1 );
00730         }
00731         if ( $fi->isNullable() ) {
00732             # # It's NULL - does it need to be NOT NULL?
00733             if ( 'NOT NULL' === $null ) {
00734                 $this->output( "Changing '$table.$field' to not allow NULLs\n" );
00735                 $this->db->query( "ALTER TABLE $table ALTER $field SET NOT NULL" );
00736             } else {
00737                 $this->output( "...column '$table.$field' is already set as NULL\n" );
00738             }
00739         } else {
00740             # # It's NOT NULL - does it need to be NULL?
00741             if ( 'NULL' === $null ) {
00742                 $this->output( "Changing '$table.$field' to allow NULLs\n" );
00743                 $this->db->query( "ALTER TABLE $table ALTER $field DROP NOT NULL" );
00744             } else {
00745                 $this->output( "...column '$table.$field' is already set as NOT NULL\n" );
00746             }
00747         }
00748     }
00749 
00750     public function addPgIndex( $table, $index, $type ) {
00751         if ( $this->db->indexExists( $table, $index ) ) {
00752             $this->output( "...index '$index' on table '$table' already exists\n" );
00753         } else {
00754             $this->output( "Creating index '$index' on table '$table' $type\n" );
00755             $this->db->query( "CREATE INDEX $index ON $table $type" );
00756         }
00757     }
00758 
00759     public function addPgExtIndex( $table, $index, $type ) {
00760         if ( $this->db->indexExists( $table, $index ) ) {
00761             $this->output( "...index '$index' on table '$table' already exists\n" );
00762         } else {
00763             if ( preg_match( '/^\(/', $type ) ) {
00764                 $this->output( "Creating index '$index' on table '$table'\n" );
00765                 $this->db->query( "CREATE INDEX $index ON $table $type" );
00766             } else {
00767                 $this->applyPatch( $type, true, "Creating index '$index' on table '$table'" );
00768             }
00769         }
00770     }
00771 
00772     protected function changeFkeyDeferrable( $table, $field, $clause ) {
00773         $fi = $this->db->fieldInfo( $table, $field );
00774         if ( is_null( $fi ) ) {
00775             $this->output( "WARNING! Column '$table.$field' does not exist but it should! " .
00776                 "Please report this.\n" );
00777 
00778             return;
00779         }
00780         if ( $fi->is_deferred() && $fi->is_deferrable() ) {
00781             return;
00782         }
00783         $this->output( "Altering column '$table.$field' to be DEFERRABLE INITIALLY DEFERRED\n" );
00784         $conname = $fi->conname();
00785         if ( $fi->conname() ) {
00786             $conclause = "CONSTRAINT \"$conname\"";
00787             $command = "ALTER TABLE $table DROP CONSTRAINT $conname";
00788             $this->db->query( $command );
00789         } else {
00790             $this->output( "Column '$table.$field' does not have a foreign key " .
00791                 "constraint, will be added\n" );
00792             $conclause = "";
00793         }
00794         $command =
00795             "ALTER TABLE $table ADD $conclause " .
00796             "FOREIGN KEY ($field) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
00797         $this->db->query( $command );
00798     }
00799 
00800     protected function convertArchive2() {
00801         if ( $this->db->tableExists( "archive2" ) ) {
00802             if ( $this->db->ruleExists( 'archive', 'archive_insert' ) ) {
00803                 $this->output( "Dropping rule 'archive_insert'\n" );
00804                 $this->db->query( 'DROP RULE archive_insert ON archive' );
00805             }
00806             if ( $this->db->ruleExists( 'archive', 'archive_delete' ) ) {
00807                 $this->output( "Dropping rule 'archive_delete'\n" );
00808                 $this->db->query( 'DROP RULE archive_delete ON archive' );
00809             }
00810             $this->applyPatch(
00811                 'patch-remove-archive2.sql',
00812                 false,
00813                 "Converting 'archive2' back to normal archive table"
00814             );
00815         } else {
00816             $this->output( "...obsolete table 'archive2' does not exist\n" );
00817         }
00818     }
00819 
00820     protected function checkOiDeleted() {
00821         if ( $this->db->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) {
00822             $this->output( "Changing 'oldimage.oi_deleted' to type 'smallint'\n" );
00823             $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
00824             $this->db->query(
00825                 "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
00826             $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
00827         } else {
00828             $this->output( "...column 'oldimage.oi_deleted' is already of type 'smallint'\n" );
00829         }
00830     }
00831 
00832     protected function checkOiNameConstraint() {
00833         if ( $this->db->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
00834             $this->output( "...table 'oldimage' has correct cascading delete/update " .
00835                 "foreign key to image\n" );
00836         } else {
00837             if ( $this->db->hasConstraint( "oldimage_oi_name_fkey" ) ) {
00838                 $this->db->query(
00839                     "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
00840             }
00841             if ( $this->db->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
00842                 $this->db->query(
00843                     "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
00844             }
00845             $this->output( "Making foreign key on table 'oldimage' (to image) a cascade delete/update\n" );
00846             $this->db->query(
00847                 "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
00848                 "FOREIGN KEY (oi_name) REFERENCES image(img_name) " .
00849                 "ON DELETE CASCADE ON UPDATE CASCADE" );
00850         }
00851     }
00852 
00853     protected function checkPageDeletedTrigger() {
00854         if ( !$this->db->triggerExists( 'page', 'page_deleted' ) ) {
00855             $this->applyPatch(
00856                 'patch-page_deleted.sql',
00857                 false,
00858                 "Adding function and trigger 'page_deleted' to table 'page'"
00859             );
00860         } else {
00861             $this->output( "...table 'page' has 'page_deleted' trigger\n" );
00862         }
00863     }
00864 
00865     protected function dropIndex( $table, $index, $patch = '', $fullpath = false ) {
00866         if ( $this->db->indexExists( $table, $index ) ) {
00867             $this->output( "Dropping obsolete index '$index'\n" );
00868             $this->db->query( "DROP INDEX \"" . $index . "\"" );
00869         }
00870     }
00871 
00872     protected function checkIndex( $index, $should_be, $good_def ) {
00873         $pu = $this->db->indexAttributes( $index );
00874         if ( !empty( $pu ) && $pu != $should_be ) {
00875             $this->output( "Dropping obsolete version of index '$index'\n" );
00876             $this->db->query( "DROP INDEX \"" . $index . "\"" );
00877             $pu = array();
00878         } else {
00879             $this->output( "...no need to drop index '$index'\n" );
00880         }
00881 
00882         if ( empty( $pu ) ) {
00883             $this->output( "Creating index '$index'\n" );
00884             $this->db->query( $good_def );
00885         } else {
00886             $this->output( "...index '$index' exists\n" );
00887         }
00888     }
00889 
00890     protected function checkRevUserFkey() {
00891         if ( $this->fkeyDeltype( 'revision_rev_user_fkey' ) == 'r' ) {
00892             $this->output( "...constraint 'revision_rev_user_fkey' is ON DELETE RESTRICT\n" );
00893         } else {
00894             $this->applyPatch(
00895                 'patch-revision_rev_user_fkey.sql',
00896                 false,
00897                 "Changing constraint 'revision_rev_user_fkey' to ON DELETE RESTRICT"
00898             );
00899         }
00900     }
00901 
00902     protected function checkIwlPrefix() {
00903         if ( $this->db->indexExists( 'iwlinks', 'iwl_prefix' ) ) {
00904             $this->applyPatch(
00905                 'patch-rename-iwl_prefix.sql',
00906                 false,
00907                 "Replacing index 'iwl_prefix' with 'iwl_prefix_title_from'"
00908             );
00909         }
00910     }
00911 
00912     protected function addInterwikiType() {
00913         $this->applyPatch( 'patch-add_interwiki.sql', false, "Refreshing add_interwiki()" );
00914     }
00915 
00916     protected function tsearchFixes() {
00917         # Tweak the page_title tsearch2 trigger to filter out slashes
00918         # This is create or replace, so harmless to call if not needed
00919         $this->applyPatch( 'patch-ts2pagetitle.sql', false, "Refreshing ts2_page_title()" );
00920 
00921         # If the server is 8.3 or higher, rewrite the tsearch2 triggers
00922         # in case they have the old 'default' versions
00923         # Gather version numbers in case we need them
00924         if ( $this->db->getServerVersion() >= 8.3 ) {
00925             $this->applyPatch( 'patch-tsearch2funcs.sql', false, "Rewriting tsearch2 triggers" );
00926         }
00927     }
00928 }