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Diffstat (limited to 'www/wiki/includes/installer/PostgresUpdater.php')
| -rw-r--r-- | www/wiki/includes/installer/PostgresUpdater.php | 1180 |
1 files changed, 1180 insertions, 0 deletions
diff --git a/www/wiki/includes/installer/PostgresUpdater.php b/www/wiki/includes/installer/PostgresUpdater.php new file mode 100644 index 00000000..5026ae92 --- /dev/null +++ b/www/wiki/includes/installer/PostgresUpdater.php @@ -0,0 +1,1180 @@ +<?php +/** + * PostgreSQL-specific updater. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * http://www.gnu.org/copyleft/gpl.html + * + * @file + * @ingroup Deployment + */ + +use Wikimedia\Rdbms\DatabasePostgres; + +/** + * Class for handling updates to Postgres databases. + * + * @ingroup Deployment + * @since 1.17 + */ +class PostgresUpdater extends DatabaseUpdater { + + /** + * @var DatabasePostgres + */ + protected $db; + + /** + * @todo FIXME: Postgres should use sequential updates like Mysql, Sqlite + * and everybody else. It never got refactored like it should've. + * @return array + */ + protected function getCoreUpdateList() { + return [ + # rename tables 1.7.3 + # r15791 Change reserved word table names "user" and "text" + [ 'renameTable', 'user', 'mwuser' ], + [ 'renameTable', 'text', 'pagecontent' ], + [ 'renameIndex', 'mwuser', 'user_pkey', 'mwuser_pkey' ], + [ 'renameIndex', 'mwuser', 'user_user_name_key', 'mwuser_user_name_key' ], + [ 'renameIndex', 'pagecontent', 'text_pkey', 'pagecontent_pkey' ], + + # renamed sequences + [ 'renameSequence', 'ipblocks_ipb_id_val', 'ipblocks_ipb_id_seq' ], + [ 'renameSequence', 'rev_rev_id_val', 'revision_rev_id_seq' ], + [ 'renameSequence', 'text_old_id_val', 'text_old_id_seq' ], + [ 'renameSequence', 'rc_rc_id_seq', 'recentchanges_rc_id_seq' ], + [ 'renameSequence', 'log_log_id_seq', 'logging_log_id_seq' ], + [ 'renameSequence', 'pr_id_val', 'page_restrictions_pr_id_seq' ], + [ 'renameSequence', 'us_id_seq', 'uploadstash_us_id_seq' ], + + # since r58263 + [ 'renameSequence', 'category_id_seq', 'category_cat_id_seq' ], + + # new sequences if not renamed above + [ 'addSequence', 'logging', false, 'logging_log_id_seq' ], + [ 'addSequence', 'page_restrictions', false, 'page_restrictions_pr_id_seq' ], + [ 'addSequence', 'filearchive', 'fa_id', 'filearchive_fa_id_seq' ], + [ 'addSequence', 'archive', false, 'archive_ar_id_seq' ], + [ 'addSequence', 'externallinks', false, 'externallinks_el_id_seq' ], + [ 'addSequence', 'watchlist', false, 'watchlist_wl_id_seq' ], + [ 'addSequence', 'change_tag', false, 'change_tag_ct_id_seq' ], + [ 'addSequence', 'tag_summary', false, 'tag_summary_ts_id_seq' ], + + # new tables + [ 'addTable', 'category', 'patch-category.sql' ], + [ 'addTable', 'page', 'patch-page.sql' ], + [ 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ], + [ 'addTable', 'page_props', 'patch-page_props.sql' ], + [ 'addTable', 'page_restrictions', 'patch-page_restrictions.sql' ], + [ 'addTable', 'profiling', 'patch-profiling.sql' ], + [ 'addTable', 'protected_titles', 'patch-protected_titles.sql' ], + [ 'addTable', 'redirect', 'patch-redirect.sql' ], + [ 'addTable', 'updatelog', 'patch-updatelog.sql' ], + [ 'addTable', 'change_tag', 'patch-change_tag.sql' ], + [ 'addTable', 'tag_summary', 'patch-tag_summary.sql' ], + [ 'addTable', 'valid_tag', 'patch-valid_tag.sql' ], + [ 'addTable', 'user_properties', 'patch-user_properties.sql' ], + [ 'addTable', 'log_search', 'patch-log_search.sql' ], + [ 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ], + [ 'addTable', 'iwlinks', 'patch-iwlinks.sql' ], + [ 'addTable', 'module_deps', 'patch-module_deps.sql' ], + [ 'addTable', 'uploadstash', 'patch-uploadstash.sql' ], + [ 'addTable', 'user_former_groups', 'patch-user_former_groups.sql' ], + [ 'addTable', 'sites', 'patch-sites.sql' ], + [ 'addTable', 'bot_passwords', 'patch-bot_passwords.sql' ], + + # Needed before new field + [ 'convertArchive2' ], + + # new fields + [ 'addPgField', 'updatelog', 'ul_value', 'TEXT' ], + [ 'addPgField', 'archive', 'ar_deleted', 'SMALLINT NOT NULL DEFAULT 0' ], + [ 'addPgField', 'archive', 'ar_len', 'INTEGER' ], + [ 'addPgField', 'archive', 'ar_page_id', 'INTEGER' ], + [ 'addPgField', 'archive', 'ar_parent_id', 'INTEGER' ], + [ 'addPgField', 'archive', 'ar_content_model', 'TEXT' ], + [ 'addPgField', 'archive', 'ar_content_format', 'TEXT' ], + [ 'addPgField', 'categorylinks', 'cl_sortkey_prefix', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'categorylinks', 'cl_collation', "TEXT NOT NULL DEFAULT 0" ], + [ 'addPgField', 'categorylinks', 'cl_type', "TEXT NOT NULL DEFAULT 'page'" ], + [ 'addPgField', 'image', 'img_sha1', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'ipblocks', 'ipb_allow_usertalk', 'SMALLINT NOT NULL DEFAULT 0' ], + [ 'addPgField', 'ipblocks', 'ipb_anon_only', 'SMALLINT NOT NULL DEFAULT 0' ], + [ 'addPgField', 'ipblocks', 'ipb_by_text', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'ipblocks', 'ipb_block_email', 'SMALLINT NOT NULL DEFAULT 0' ], + [ 'addPgField', 'ipblocks', 'ipb_create_account', 'SMALLINT NOT NULL DEFAULT 1' ], + [ 'addPgField', 'ipblocks', 'ipb_deleted', 'SMALLINT NOT NULL DEFAULT 0' ], + [ 'addPgField', 'ipblocks', 'ipb_enable_autoblock', 'SMALLINT NOT NULL DEFAULT 1' ], + [ 'addPgField', 'ipblocks', 'ipb_parent_block_id', + 'INTEGER DEFAULT NULL REFERENCES ipblocks(ipb_id) ' . + 'ON DELETE SET NULL DEFERRABLE INITIALLY DEFERRED' ], + [ 'addPgField', 'filearchive', 'fa_deleted', 'SMALLINT NOT NULL DEFAULT 0' ], + [ 'addPgField', 'filearchive', 'fa_sha1', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'logging', 'log_deleted', 'SMALLINT NOT NULL DEFAULT 0' ], + [ 'addPgField', 'logging', 'log_id', + "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ], + [ 'addPgField', 'logging', 'log_params', 'TEXT' ], + [ 'addPgField', 'mwuser', 'user_editcount', 'INTEGER' ], + [ 'addPgField', 'mwuser', 'user_newpass_time', 'TIMESTAMPTZ' ], + [ 'addPgField', 'oldimage', 'oi_deleted', 'SMALLINT NOT NULL DEFAULT 0' ], + [ 'addPgField', 'oldimage', 'oi_major_mime', "TEXT NOT NULL DEFAULT 'unknown'" ], + [ 'addPgField', 'oldimage', 'oi_media_type', 'TEXT' ], + [ 'addPgField', 'oldimage', 'oi_metadata', "BYTEA NOT NULL DEFAULT ''" ], + [ 'addPgField', 'oldimage', 'oi_minor_mime', "TEXT NOT NULL DEFAULT 'unknown'" ], + [ 'addPgField', 'oldimage', 'oi_sha1', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'page', 'page_content_model', 'TEXT' ], + [ 'addPgField', 'page_restrictions', 'pr_id', + "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_seq')" ], + [ 'addPgField', 'profiling', 'pf_memory', 'NUMERIC(18,10) NOT NULL DEFAULT 0' ], + [ 'addPgField', 'recentchanges', 'rc_deleted', 'SMALLINT NOT NULL DEFAULT 0' ], + [ 'addPgField', 'recentchanges', 'rc_log_action', 'TEXT' ], + [ 'addPgField', 'recentchanges', 'rc_log_type', 'TEXT' ], + [ 'addPgField', 'recentchanges', 'rc_logid', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'addPgField', 'recentchanges', 'rc_new_len', 'INTEGER' ], + [ 'addPgField', 'recentchanges', 'rc_old_len', 'INTEGER' ], + [ 'addPgField', 'recentchanges', 'rc_params', 'TEXT' ], + [ 'addPgField', 'redirect', 'rd_interwiki', 'TEXT NULL' ], + [ 'addPgField', 'redirect', 'rd_fragment', 'TEXT NULL' ], + [ 'addPgField', 'revision', 'rev_deleted', 'SMALLINT NOT NULL DEFAULT 0' ], + [ 'addPgField', 'revision', 'rev_len', 'INTEGER' ], + [ 'addPgField', 'revision', 'rev_parent_id', 'INTEGER DEFAULT NULL' ], + [ 'addPgField', 'revision', 'rev_content_model', 'TEXT' ], + [ 'addPgField', 'revision', 'rev_content_format', 'TEXT' ], + [ 'addPgField', 'site_stats', 'ss_active_users', "INTEGER DEFAULT '-1'" ], + [ 'addPgField', 'user_newtalk', 'user_last_timestamp', 'TIMESTAMPTZ' ], + [ 'addPgField', 'logging', 'log_user_text', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'logging', 'log_page', 'INTEGER' ], + [ 'addPgField', 'interwiki', 'iw_api', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'interwiki', 'iw_wikiid', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'revision', 'rev_sha1', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'archive', 'ar_sha1', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'uploadstash', 'us_chunk_inx', "INTEGER NULL" ], + [ 'addPgField', 'job', 'job_timestamp', "TIMESTAMPTZ" ], + [ 'addPgField', 'job', 'job_random', "INTEGER NOT NULL DEFAULT 0" ], + [ 'addPgField', 'job', 'job_attempts', "INTEGER NOT NULL DEFAULT 0" ], + [ 'addPgField', 'job', 'job_token', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'job', 'job_token_timestamp', "TIMESTAMPTZ" ], + [ 'addPgField', 'job', 'job_sha1', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'archive', 'ar_id', + "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('archive_ar_id_seq')" ], + [ 'addPgField', 'externallinks', 'el_id', + "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('externallinks_el_id_seq')" ], + [ 'addPgField', 'uploadstash', 'us_props', "BYTEA" ], + + # type changes + [ 'changeField', 'archive', 'ar_deleted', 'smallint', '' ], + [ 'changeField', 'archive', 'ar_minor_edit', 'smallint', + 'ar_minor_edit::smallint DEFAULT 0' ], + [ 'changeField', 'filearchive', 'fa_deleted', 'smallint', '' ], + [ 'changeField', 'filearchive', 'fa_height', 'integer', '' ], + [ 'changeField', 'filearchive', 'fa_metadata', 'bytea', "decode(fa_metadata,'escape')" ], + [ 'changeField', 'filearchive', 'fa_size', 'integer', '' ], + [ 'changeField', 'filearchive', 'fa_width', 'integer', '' ], + [ 'changeField', 'filearchive', 'fa_storage_group', 'text', '' ], + [ 'changeField', 'filearchive', 'fa_storage_key', 'text', '' ], + [ 'changeField', 'image', 'img_metadata', 'bytea', "decode(img_metadata,'escape')" ], + [ 'changeField', 'image', 'img_size', 'integer', '' ], + [ 'changeField', 'image', 'img_width', 'integer', '' ], + [ 'changeField', 'image', 'img_height', 'integer', '' ], + [ 'changeField', 'interwiki', 'iw_local', 'smallint', 'iw_local::smallint' ], + [ 'changeField', 'interwiki', 'iw_trans', 'smallint', 'iw_trans::smallint DEFAULT 0' ], + [ 'changeField', 'ipblocks', 'ipb_auto', 'smallint', 'ipb_auto::smallint DEFAULT 0' ], + [ 'changeField', 'ipblocks', 'ipb_anon_only', 'smallint', + "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ], + [ 'changeField', 'ipblocks', 'ipb_create_account', 'smallint', + "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ], + [ 'changeField', 'ipblocks', 'ipb_enable_autoblock', 'smallint', + "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ], + [ 'changeField', 'ipblocks', 'ipb_block_email', 'smallint', + "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ], + [ 'changeField', 'ipblocks', 'ipb_address', 'text', 'ipb_address::text' ], + [ 'changeField', 'ipblocks', 'ipb_deleted', 'smallint', 'ipb_deleted::smallint DEFAULT 0' ], + [ 'changeField', 'mwuser', 'user_token', 'text', '' ], + [ 'changeField', 'mwuser', 'user_email_token', 'text', '' ], + [ 'changeField', 'objectcache', 'keyname', 'text', '' ], + [ 'changeField', 'oldimage', 'oi_height', 'integer', '' ], + [ 'changeField', 'oldimage', 'oi_metadata', 'bytea', "decode(img_metadata,'escape')" ], + [ 'changeField', 'oldimage', 'oi_size', 'integer', '' ], + [ 'changeField', 'oldimage', 'oi_width', 'integer', '' ], + [ 'changeField', 'page', 'page_is_redirect', 'smallint', + 'page_is_redirect::smallint DEFAULT 0' ], + [ 'changeField', 'page', 'page_is_new', 'smallint', 'page_is_new::smallint DEFAULT 0' ], + [ 'changeField', 'querycache', 'qc_value', 'integer', '' ], + [ 'changeField', 'querycachetwo', 'qcc_value', 'integer', '' ], + [ 'changeField', 'recentchanges', 'rc_bot', 'smallint', 'rc_bot::smallint DEFAULT 0' ], + [ 'changeField', 'recentchanges', 'rc_deleted', 'smallint', '' ], + [ 'changeField', 'recentchanges', 'rc_minor', 'smallint', 'rc_minor::smallint DEFAULT 0' ], + [ 'changeField', 'recentchanges', 'rc_new', 'smallint', 'rc_new::smallint DEFAULT 0' ], + [ 'changeField', 'recentchanges', 'rc_type', 'smallint', 'rc_type::smallint DEFAULT 0' ], + [ 'changeField', 'recentchanges', 'rc_patrolled', 'smallint', + 'rc_patrolled::smallint DEFAULT 0' ], + [ 'changeField', 'revision', 'rev_deleted', 'smallint', 'rev_deleted::smallint DEFAULT 0' ], + [ 'changeField', 'revision', 'rev_minor_edit', 'smallint', + 'rev_minor_edit::smallint DEFAULT 0' ], + [ 'changeField', 'templatelinks', 'tl_namespace', 'smallint', 'tl_namespace::smallint' ], + [ 'changeField', 'user_newtalk', 'user_ip', 'text', 'host(user_ip)' ], + [ 'changeField', 'uploadstash', 'us_image_bits', 'smallint', '' ], + [ 'changeField', 'profiling', 'pf_time', 'float', '' ], + [ 'changeField', 'profiling', 'pf_memory', 'float', '' ], + + # null changes + [ 'changeNullableField', 'oldimage', 'oi_bits', 'NULL' ], + [ 'changeNullableField', 'oldimage', 'oi_timestamp', 'NULL' ], + [ 'changeNullableField', 'oldimage', 'oi_major_mime', 'NULL' ], + [ 'changeNullableField', 'oldimage', 'oi_minor_mime', 'NULL' ], + [ 'changeNullableField', 'image', 'img_metadata', 'NOT NULL' ], + [ 'changeNullableField', 'filearchive', 'fa_metadata', 'NOT NULL' ], + [ 'changeNullableField', 'recentchanges', 'rc_cur_id', 'NULL' ], + [ 'changeNullableField', 'recentchanges', 'rc_cur_time', 'NULL' ], + + [ 'checkOiDeleted' ], + + # New indexes + [ 'addPgIndex', 'archive', 'archive_user_text', '(ar_user_text)' ], + [ 'addPgIndex', 'image', 'img_sha1', '(img_sha1)' ], + [ 'addPgIndex', 'ipblocks', 'ipb_parent_block_id', '(ipb_parent_block_id)' ], + [ 'addPgIndex', 'oldimage', 'oi_sha1', '(oi_sha1)' ], + [ 'addPgIndex', 'page', 'page_mediawiki_title', '(page_title) WHERE page_namespace = 8' ], + [ 'addPgIndex', 'pagelinks', 'pagelinks_title', '(pl_title)' ], + [ 'addPgIndex', 'page_props', 'pp_propname_page', '(pp_propname, pp_page)' ], + [ 'addPgIndex', 'revision', 'rev_text_id_idx', '(rev_text_id)' ], + [ 'addPgIndex', 'recentchanges', 'rc_timestamp_bot', '(rc_timestamp) WHERE rc_bot = 0' ], + [ 'addPgIndex', 'templatelinks', 'templatelinks_from', '(tl_from)' ], + [ 'addPgIndex', 'watchlist', 'wl_user', '(wl_user)' ], + [ 'addPgIndex', 'watchlist', 'wl_user_notificationtimestamp', + '(wl_user, wl_notificationtimestamp)' ], + [ 'addPgIndex', 'logging', 'logging_user_type_time', + '(log_user, log_type, log_timestamp)' ], + [ 'addPgIndex', 'logging', 'logging_page_id_time', '(log_page,log_timestamp)' ], + [ 'addPgIndex', 'iwlinks', 'iwl_prefix_from_title', '(iwl_prefix, iwl_from, iwl_title)' ], + [ 'addPgIndex', 'iwlinks', 'iwl_prefix_title_from', '(iwl_prefix, iwl_title, iwl_from)' ], + [ 'addPgIndex', 'job', 'job_timestamp_idx', '(job_timestamp)' ], + [ 'addPgIndex', 'job', 'job_sha1', '(job_sha1)' ], + [ 'addPgIndex', 'job', 'job_cmd_token', '(job_cmd, job_token, job_random)' ], + [ 'addPgIndex', 'job', 'job_cmd_token_id', '(job_cmd, job_token, job_id)' ], + [ 'addPgIndex', 'filearchive', 'fa_sha1', '(fa_sha1)' ], + [ 'addPgIndex', 'logging', 'logging_user_text_type_time', + '(log_user_text, log_type, log_timestamp)' ], + [ 'addPgIndex', 'logging', 'logging_user_text_time', '(log_user_text, log_timestamp)' ], + + [ 'checkIndex', 'pagelink_unique', [ + [ 'pl_from', 'int4_ops', 'btree', 0 ], + [ 'pl_namespace', 'int2_ops', 'btree', 0 ], + [ 'pl_title', 'text_ops', 'btree', 0 ], + ], + 'CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)' ], + [ 'checkIndex', 'cl_sortkey', [ + [ 'cl_to', 'text_ops', 'btree', 0 ], + [ 'cl_sortkey', 'text_ops', 'btree', 0 ], + [ 'cl_from', 'int4_ops', 'btree', 0 ], + ], + 'CREATE INDEX cl_sortkey ON "categorylinks" ' . + 'USING "btree" ("cl_to", "cl_sortkey", "cl_from")' ], + [ 'checkIndex', 'iwl_prefix_title_from', [ + [ 'iwl_prefix', 'text_ops', 'btree', 0 ], + [ 'iwl_title', 'text_ops', 'btree', 0 ], + [ 'iwl_from', 'int4_ops', 'btree', 0 ], + ], + 'CREATE INDEX iwl_prefix_title_from ON "iwlinks" ' . + 'USING "btree" ("iwl_prefix", "iwl_title", "iwl_from")' ], + [ 'checkIndex', 'logging_times', [ + [ 'log_timestamp', 'timestamptz_ops', 'btree', 0 ], + ], + 'CREATE INDEX "logging_times" ON "logging" USING "btree" ("log_timestamp")' ], + [ 'dropPgIndex', 'oldimage', 'oi_name' ], + [ 'checkIndex', 'oi_name_archive_name', [ + [ 'oi_name', 'text_ops', 'btree', 0 ], + [ 'oi_archive_name', 'text_ops', 'btree', 0 ], + ], + 'CREATE INDEX "oi_name_archive_name" ON "oldimage" ' . + 'USING "btree" ("oi_name", "oi_archive_name")' ], + [ 'checkIndex', 'oi_name_timestamp', [ + [ 'oi_name', 'text_ops', 'btree', 0 ], + [ 'oi_timestamp', 'timestamptz_ops', 'btree', 0 ], + ], + 'CREATE INDEX "oi_name_timestamp" ON "oldimage" ' . + 'USING "btree" ("oi_name", "oi_timestamp")' ], + [ 'checkIndex', 'page_main_title', [ + [ 'page_title', 'text_pattern_ops', 'btree', 0 ], + ], + 'CREATE INDEX "page_main_title" ON "page" ' . + 'USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 0)' ], + [ 'checkIndex', 'page_mediawiki_title', [ + [ 'page_title', 'text_pattern_ops', 'btree', 0 ], + ], + 'CREATE INDEX "page_mediawiki_title" ON "page" ' . + 'USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 8)' ], + [ 'checkIndex', 'page_project_title', [ + [ 'page_title', 'text_pattern_ops', 'btree', 0 ], + ], + 'CREATE INDEX "page_project_title" ON "page" ' . + 'USING "btree" ("page_title" "text_pattern_ops") ' . + 'WHERE ("page_namespace" = 4)' ], + [ 'checkIndex', 'page_talk_title', [ + [ 'page_title', 'text_pattern_ops', 'btree', 0 ], + ], + 'CREATE INDEX "page_talk_title" ON "page" ' . + 'USING "btree" ("page_title" "text_pattern_ops") ' . + 'WHERE ("page_namespace" = 1)' ], + [ 'checkIndex', 'page_user_title', [ + [ 'page_title', 'text_pattern_ops', 'btree', 0 ], + ], + 'CREATE INDEX "page_user_title" ON "page" ' . + 'USING "btree" ("page_title" "text_pattern_ops") WHERE ' . + '("page_namespace" = 2)' ], + [ 'checkIndex', 'page_utalk_title', [ + [ 'page_title', 'text_pattern_ops', 'btree', 0 ], + ], + 'CREATE INDEX "page_utalk_title" ON "page" ' . + 'USING "btree" ("page_title" "text_pattern_ops") ' . + 'WHERE ("page_namespace" = 3)' ], + [ 'checkIndex', 'ts2_page_text', [ + [ 'textvector', 'tsvector_ops', 'gist', 0 ], + ], + 'CREATE INDEX "ts2_page_text" ON "pagecontent" USING "gist" ("textvector")' ], + [ 'checkIndex', 'ts2_page_title', [ + [ 'titlevector', 'tsvector_ops', 'gist', 0 ], + ], + 'CREATE INDEX "ts2_page_title" ON "page" USING "gist" ("titlevector")' ], + + [ 'checkOiNameConstraint' ], + [ 'checkPageDeletedTrigger' ], + [ 'checkRevUserFkey' ], + [ 'dropPgIndex', 'ipblocks', 'ipb_address' ], + [ 'checkIndex', 'ipb_address_unique', [ + [ 'ipb_address', 'text_ops', 'btree', 0 ], + [ 'ipb_user', 'int4_ops', 'btree', 0 ], + [ 'ipb_auto', 'int2_ops', 'btree', 0 ], + [ 'ipb_anon_only', 'int2_ops', 'btree', 0 ], + ], + 'CREATE UNIQUE INDEX ipb_address_unique ' . + 'ON ipblocks (ipb_address,ipb_user,ipb_auto,ipb_anon_only)' ], + + [ 'checkIwlPrefix' ], + + # All FK columns should be deferred + [ 'changeFkeyDeferrable', 'archive', 'ar_user', 'mwuser(user_id) ON DELETE SET NULL' ], + [ 'changeFkeyDeferrable', 'categorylinks', 'cl_from', 'page(page_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'externallinks', 'el_from', 'page(page_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'filearchive', 'fa_deleted_user', + 'mwuser(user_id) ON DELETE SET NULL' ], + [ 'changeFkeyDeferrable', 'filearchive', 'fa_user', 'mwuser(user_id) ON DELETE SET NULL' ], + [ 'changeFkeyDeferrable', 'image', 'img_user', 'mwuser(user_id) ON DELETE SET NULL' ], + [ 'changeFkeyDeferrable', 'imagelinks', 'il_from', 'page(page_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'ipblocks', 'ipb_by', 'mwuser(user_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'ipblocks', 'ipb_user', 'mwuser(user_id) ON DELETE SET NULL' ], + [ 'changeFkeyDeferrable', 'ipblocks', 'ipb_parent_block_id', + 'ipblocks(ipb_id) ON DELETE SET NULL' ], + [ 'changeFkeyDeferrable', 'langlinks', 'll_from', 'page(page_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'logging', 'log_user', 'mwuser(user_id) ON DELETE SET NULL' ], + [ 'changeFkeyDeferrable', 'oldimage', 'oi_name', + 'image(img_name) ON DELETE CASCADE ON UPDATE CASCADE' ], + [ 'changeFkeyDeferrable', 'oldimage', 'oi_user', 'mwuser(user_id) ON DELETE SET NULL' ], + [ 'changeFkeyDeferrable', 'pagelinks', 'pl_from', 'page(page_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'page_props', 'pp_page', 'page (page_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'page_restrictions', 'pr_page', + 'page(page_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'protected_titles', 'pt_user', + 'mwuser(user_id) ON DELETE SET NULL' ], + [ 'changeFkeyDeferrable', 'recentchanges', 'rc_user', + 'mwuser(user_id) ON DELETE SET NULL' ], + [ 'changeFkeyDeferrable', 'redirect', 'rd_from', 'page(page_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'revision', 'rev_page', 'page (page_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'revision', 'rev_user', 'mwuser(user_id) ON DELETE RESTRICT' ], + [ 'changeFkeyDeferrable', 'templatelinks', 'tl_from', 'page(page_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'user_groups', 'ug_user', 'mwuser(user_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'user_newtalk', 'user_id', 'mwuser(user_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'user_properties', 'up_user', + 'mwuser(user_id) ON DELETE CASCADE' ], + [ 'changeFkeyDeferrable', 'watchlist', 'wl_user', 'mwuser(user_id) ON DELETE CASCADE' ], + + # r81574 + [ 'addInterwikiType' ], + # end + [ 'tsearchFixes' ], + + // 1.23 + [ 'addPgField', 'recentchanges', 'rc_source', "TEXT NOT NULL DEFAULT ''" ], + [ 'addPgField', 'page', 'page_links_updated', "TIMESTAMPTZ NULL" ], + [ 'addPgField', 'mwuser', 'user_password_expires', 'TIMESTAMPTZ NULL' ], + [ 'changeFieldPurgeTable', 'l10n_cache', 'lc_value', 'bytea', + "replace(lc_value,'\','\\\\')::bytea" ], + // 1.23.9 + [ 'rebuildTextSearch' ], + + // 1.24 + [ 'addPgField', 'page_props', 'pp_sortkey', 'float NULL' ], + [ 'addPgIndex', 'page_props', 'pp_propname_sortkey_page', + '( pp_propname, pp_sortkey, pp_page ) WHERE ( pp_sortkey IS NOT NULL )' ], + [ 'addPgField', 'page', 'page_lang', 'TEXT default NULL' ], + [ 'addPgField', 'pagelinks', 'pl_from_namespace', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'addPgField', 'templatelinks', 'tl_from_namespace', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'addPgField', 'imagelinks', 'il_from_namespace', 'INTEGER NOT NULL DEFAULT 0' ], + + // 1.25 + [ 'dropTable', 'hitcounter' ], + [ 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ], + [ 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ], + [ 'dropFkey', 'recentchanges', 'rc_cur_id' ], + + // 1.27 + [ 'dropTable', 'msg_resource_links' ], + [ 'dropTable', 'msg_resource' ], + [ + 'addPgField', 'watchlist', 'wl_id', + "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('watchlist_wl_id_seq')" + ], + + // 1.28 + [ 'addPgIndex', 'recentchanges', 'rc_name_type_patrolled_timestamp', + '( rc_namespace, rc_type, rc_patrolled, rc_timestamp )' ], + [ 'addPgField', 'change_tag', 'ct_id', + "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('change_tag_ct_id_seq')" ], + [ 'addPgField', 'tag_summary', 'ts_id', + "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('tag_summary_ts_id_seq')" ], + + // 1.29 + [ 'addPgField', 'externallinks', 'el_index_60', "BYTEA NOT NULL DEFAULT ''" ], + [ 'addPgIndex', 'externallinks', 'el_index_60', '( el_index_60, el_id )' ], + [ 'addPgIndex', 'externallinks', 'el_from_index_60', '( el_from, el_index_60, el_id )' ], + [ 'addPgField', 'user_groups', 'ug_expiry', "TIMESTAMPTZ NULL" ], + [ 'addPgIndex', 'user_groups', 'user_groups_expiry', '( ug_expiry )' ], + + // 1.30 + [ 'addPgEnumValue', 'media_type', '3D' ], + [ 'setDefault', 'revision', 'rev_comment', '' ], + [ 'changeNullableField', 'revision', 'rev_comment', 'NOT NULL', true ], + [ 'setDefault', 'archive', 'ar_comment', '' ], + [ 'changeNullableField', 'archive', 'ar_comment', 'NOT NULL', true ], + [ 'addPgField', 'archive', 'ar_comment_id', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'setDefault', 'ipblocks', 'ipb_reason', '' ], + [ 'addPgField', 'ipblocks', 'ipb_reason_id', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'setDefault', 'image', 'img_description', '' ], + [ 'setDefault', 'oldimage', 'oi_description', '' ], + [ 'changeNullableField', 'oldimage', 'oi_description', 'NOT NULL', true ], + [ 'addPgField', 'oldimage', 'oi_description_id', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'setDefault', 'filearchive', 'fa_deleted_reason', '' ], + [ 'changeNullableField', 'filearchive', 'fa_deleted_reason', 'NOT NULL', true ], + [ 'addPgField', 'filearchive', 'fa_deleted_reason_id', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'setDefault', 'filearchive', 'fa_description', '' ], + [ 'addPgField', 'filearchive', 'fa_description_id', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'setDefault', 'recentchanges', 'rc_comment', '' ], + [ 'changeNullableField', 'recentchanges', 'rc_comment', 'NOT NULL', true ], + [ 'addPgField', 'recentchanges', 'rc_comment_id', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'setDefault', 'logging', 'log_comment', '' ], + [ 'changeNullableField', 'logging', 'log_comment', 'NOT NULL', true ], + [ 'addPgField', 'logging', 'log_comment_id', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'setDefault', 'protected_titles', 'pt_reason', '' ], + [ 'changeNullableField', 'protected_titles', 'pt_reason', 'NOT NULL', true ], + [ 'addPgField', 'protected_titles', 'pt_reason_id', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'addTable', 'comment', 'patch-comment-table.sql' ], + + // This field was added in 1.31, but is put here so it can be used by 'migrateComments' + [ 'addPgField', 'image', 'img_description_id', 'INTEGER NOT NULL DEFAULT 0' ], + + [ 'migrateComments' ], + [ 'addIndex', 'site_stats', 'site_stats_pkey', 'patch-site_stats-pk.sql' ], + [ 'addTable', 'ip_changes', 'patch-ip_changes.sql' ], + + // 1.31 + [ 'addTable', 'slots', 'patch-slots-table.sql' ], + [ 'dropPgIndex', 'slots', 'slot_role_inherited' ], + [ 'dropPgField', 'slots', 'slot_inherited' ], + [ 'addPgField', 'slots', 'slot_origin', 'INTEGER NOT NULL' ], + [ + 'addPgIndex', + 'slots', + 'slot_revision_origin_role', + '( slot_revision_id, slot_origin, slot_role_id )', + ], + [ 'addTable', 'content', 'patch-content-table.sql' ], + [ 'addTable', 'content_models', 'patch-content_models-table.sql' ], + [ 'addTable', 'slot_roles', 'patch-slot_roles-table.sql' ], + [ 'migrateArchiveText' ], + [ 'addTable', 'actor', 'patch-actor-table.sql' ], + [ 'setDefault', 'revision', 'rev_user', 0 ], + [ 'setDefault', 'revision', 'rev_user_text', '' ], + [ 'setDefault', 'archive', 'ar_user', 0 ], + [ 'changeNullableField', 'archive', 'ar_user', 'NOT NULL', true ], + [ 'setDefault', 'archive', 'ar_user_text', '' ], + [ 'addPgField', 'archive', 'ar_actor', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'addPgIndex', 'archive', 'archive_actor', '( ar_actor )' ], + [ 'setDefault', 'ipblocks', 'ipb_by', 0 ], + [ 'addPgField', 'ipblocks', 'ipb_by_actor', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'setDefault', 'image', 'img_user', 0 ], + [ 'changeNullableField', 'image', 'img_user', 'NOT NULL', true ], + [ 'setDefault', 'image', 'img_user_text', '' ], + [ 'addPgField', 'image', 'img_actor', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'setDefault', 'oldimage', 'oi_user', 0 ], + [ 'changeNullableField', 'oldimage', 'oi_user', 'NOT NULL', true ], + [ 'setDefault', 'oldimage', 'oi_user_text', '' ], + [ 'addPgField', 'oldimage', 'oi_actor', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'setDefault', 'filearchive', 'fa_user', 0 ], + [ 'changeNullableField', 'filearchive', 'fa_user', 'NOT NULL', true ], + [ 'setDefault', 'filearchive', 'fa_user_text', '' ], + [ 'addPgField', 'filearchive', 'fa_actor', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'setDefault', 'recentchanges', 'rc_user', 0 ], + [ 'changeNullableField', 'recentchanges', 'rc_user', 'NOT NULL', true ], + [ 'setDefault', 'recentchanges', 'rc_user_text', '' ], + [ 'addPgField', 'recentchanges', 'rc_actor', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'setDefault', 'logging', 'log_user', 0 ], + [ 'changeNullableField', 'logging', 'log_user', 'NOT NULL', true ], + [ 'addPgField', 'logging', 'log_actor', 'INTEGER NOT NULL DEFAULT 0' ], + [ 'addPgIndex', 'logging', 'logging_actor_time_backwards', '( log_timestamp, log_actor )' ], + [ 'addPgIndex', 'logging', 'logging_actor_type_time', '( log_actor, log_type, log_timestamp )' ], + [ 'addPgIndex', 'logging', 'logging_actor_time', '( log_actor, log_timestamp )' ], + [ 'migrateActors' ], + [ 'modifyTable', 'site_stats', 'patch-site_stats-modify.sql' ], + [ 'populateArchiveRevId' ], + [ 'dropPgIndex', 'recentchanges', 'rc_namespace_title' ], + [ + 'addPgIndex', + 'recentchanges', + 'rc_namespace_title_timestamp', '( rc_namespace, rc_title, rc_timestamp )' + ], + [ 'setSequenceOwner', 'mwuser', 'user_id', 'user_user_id_seq' ], + [ 'setSequenceOwner', 'actor', 'actor_id', 'actor_actor_id_seq' ], + [ 'setSequenceOwner', 'page', 'page_id', 'page_page_id_seq' ], + [ 'setSequenceOwner', 'revision', 'rev_id', 'revision_rev_id_seq' ], + [ 'setSequenceOwner', 'ip_changes', 'ipc_rev_id', 'ip_changes_ipc_rev_id_seq' ], + [ 'setSequenceOwner', 'pagecontent', 'old_id', 'text_old_id_seq' ], + [ 'setSequenceOwner', 'comment', 'comment_id', 'comment_comment_id_seq' ], + [ 'setSequenceOwner', 'page_restrictions', 'pr_id', 'page_restrictions_pr_id_seq' ], + [ 'setSequenceOwner', 'archive', 'ar_id', 'archive_ar_id_seq' ], + [ 'setSequenceOwner', 'content', 'content_id', 'content_content_id_seq' ], + [ 'setSequenceOwner', 'slot_roles', 'role_id', 'slot_roles_role_id_seq' ], + [ 'setSequenceOwner', 'content_models', 'model_id', 'content_models_model_id_seq' ], + [ 'setSequenceOwner', 'externallinks', 'el_id', 'externallinks_el_id_seq' ], + [ 'setSequenceOwner', 'ipblocks', 'ipb_id', 'ipblocks_ipb_id_seq' ], + [ 'setSequenceOwner', 'filearchive', 'fa_id', 'filearchive_fa_id_seq' ], + [ 'setSequenceOwner', 'uploadstash', 'us_id', 'uploadstash_us_id_seq' ], + [ 'setSequenceOwner', 'recentchanges', 'rc_id', 'recentchanges_rc_id_seq' ], + [ 'setSequenceOwner', 'watchlist', 'wl_id', 'watchlist_wl_id_seq' ], + [ 'setSequenceOwner', 'logging', 'log_id', 'logging_log_id_seq' ], + [ 'setSequenceOwner', 'job', 'job_id', 'job_job_id_seq' ], + [ 'setSequenceOwner', 'category', 'cat_id', 'category_cat_id_seq' ], + [ 'setSequenceOwner', 'change_tag', 'ct_id', 'change_tag_ct_id_seq' ], + [ 'setSequenceOwner', 'tag_summary', 'ts_id', 'tag_summary_ts_id_seq' ], + [ 'setSequenceOwner', 'sites', 'site_id', 'sites_site_id_seq' ], + ]; + } + + protected function getOldGlobalUpdates() { + global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes; + + $updates = []; + + # Add missing extension tables + foreach ( $wgExtNewTables as $tableRecord ) { + $updates[] = [ + 'addTable', $tableRecord[0], $tableRecord[1], true + ]; + } + + # Add missing extension fields + foreach ( $wgExtPGNewFields as $fieldRecord ) { + $updates[] = [ + 'addPgField', $fieldRecord[0], $fieldRecord[1], + $fieldRecord[2] + ]; + } + + # Change altered columns + foreach ( $wgExtPGAlteredFields as $fieldRecord ) { + $updates[] = [ + 'changeField', $fieldRecord[0], $fieldRecord[1], + $fieldRecord[2] + ]; + } + + # Add missing extension indexes + foreach ( $wgExtNewIndexes as $fieldRecord ) { + $updates[] = [ + 'addPgExtIndex', $fieldRecord[0], $fieldRecord[1], + $fieldRecord[2] + ]; + } + + return $updates; + } + + protected function describeTable( $table ) { + $q = <<<END +SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute + WHERE pg_class.relnamespace = pg_namespace.oid + AND attrelid=pg_class.oid AND attnum > 0 + AND relname=%s AND nspname=%s +END; + $res = $this->db->query( sprintf( $q, + $this->db->addQuotes( $table ), + $this->db->addQuotes( $this->db->getCoreSchema() ) ) ); + if ( !$res ) { + return null; + } + + $cols = []; + foreach ( $res as $r ) { + $cols[] = [ + "name" => $r[0], + "ord" => $r[1], + ]; + } + + return $cols; + } + + function describeIndex( $idx ) { + // first fetch the key (which is a list of columns ords) and + // the table the index applies to (an oid) + $q = <<<END +SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index + WHERE nspname=%s + AND pg_class.relnamespace = pg_namespace.oid + AND relname=%s + AND indexrelid=pg_class.oid +END; + $res = $this->db->query( + sprintf( + $q, + $this->db->addQuotes( $this->db->getCoreSchema() ), + $this->db->addQuotes( $idx ) + ) + ); + if ( !$res ) { + return null; + } + $r = $this->db->fetchRow( $res ); + if ( !$r ) { + return null; + } + + $indkey = $r[0]; + $relid = intval( $r[1] ); + $indkeys = explode( ' ', $indkey ); + + $colnames = []; + 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 = $this->db->query( sprintf( $query, $rid ) ); + if ( !$r2 ) { + return null; + } + $row2 = $this->db->fetchRow( $r2 ); + if ( !$row2 ) { + return null; + } + $colnames[] = $row2[0]; + } + + return $colnames; + } + + function fkeyDeltype( $fkey ) { + $q = <<<END +SELECT confdeltype FROM pg_constraint, pg_namespace + WHERE connamespace=pg_namespace.oid + AND nspname=%s + AND conname=%s; +END; + $r = $this->db->query( + sprintf( + $q, + $this->db->addQuotes( $this->db->getCoreSchema() ), + $this->db->addQuotes( $fkey ) + ) + ); + $row = $this->db->fetchRow( $r ); + if ( !$row ) { + return null; + } + + return $row[0]; + } + + function ruleDef( $table, $rule ) { + $q = <<<END +SELECT definition FROM pg_rules + WHERE schemaname = %s + AND tablename = %s + AND rulename = %s +END; + $r = $this->db->query( + sprintf( + $q, + $this->db->addQuotes( $this->db->getCoreSchema() ), + $this->db->addQuotes( $table ), + $this->db->addQuotes( $rule ) + ) + ); + $row = $this->db->fetchRow( $r ); + if ( !$row ) { + return null; + } + $d = $row[0]; + + return $d; + } + + protected function addSequence( $table, $pkey, $ns ) { + if ( !$this->db->sequenceExists( $ns ) ) { + $this->output( "Creating sequence $ns\n" ); + if ( $pkey !== false ) { + $this->db->query( "CREATE SEQUENCE $ns OWNED BY $table.$pkey" ); + $this->setDefault( $table, $pkey, '"nextval"(\'"' . $ns . '"\'::"regclass")' ); + } else { + $this->db->query( "CREATE SEQUENCE $ns" ); + } + } + } + + protected function dropSequence( $table, $ns ) { + if ( $this->db->sequenceExists( $ns ) ) { + $this->output( "Dropping sequence $ns\n" ); + $this->db->query( "DROP SEQUENCE $ns CASCADE" ); + } + } + + protected function renameSequence( $old, $new ) { + if ( $this->db->sequenceExists( $new ) ) { + $this->output( "...sequence $new already exists.\n" ); + + return; + } + if ( $this->db->sequenceExists( $old ) ) { + $this->output( "Renaming sequence $old to $new\n" ); + $this->db->query( "ALTER SEQUENCE $old RENAME TO $new" ); + } + } + + protected function setSequenceOwner( $table, $pkey, $seq ) { + if ( $this->db->sequenceExists( $seq ) ) { + $this->output( "Setting sequence $seq owner to $table.$pkey\n" ); + $this->db->query( "ALTER SEQUENCE $seq OWNED BY $table.$pkey" ); + } + } + + protected function renameTable( $old, $new, $patch = false ) { + if ( $this->db->tableExists( $old ) ) { + $this->output( "Renaming table $old to $new\n" ); + $old = $this->db->realTableName( $old, "quoted" ); + $new = $this->db->realTableName( $new, "quoted" ); + $this->db->query( "ALTER TABLE $old RENAME TO $new" ); + if ( $patch !== false ) { + $this->applyPatch( $patch ); + } + } + } + + protected function renameIndex( + $table, $old, $new, $skipBothIndexExistWarning = false, $a = false, $b = false + ) { + // First requirement: the table must exist + if ( !$this->db->tableExists( $table, __METHOD__ ) ) { + $this->output( "...skipping: '$table' table doesn't exist yet.\n" ); + + return; + } + + // Second requirement: the new index must be missing + if ( $this->db->indexExists( $table, $new, __METHOD__ ) ) { + $this->output( "...index $new already set on $table table.\n" ); + if ( !$skipBothIndexExistWarning + && $this->db->indexExists( $table, $old, __METHOD__ ) + ) { + $this->output( "...WARNING: $old still exists, despite it has been " . + "renamed into $new (which also exists).\n" . + " $old should be manually removed if not needed anymore.\n" ); + } + + return; + } + + // Third requirement: the old index must exist + if ( !$this->db->indexExists( $table, $old, __METHOD__ ) ) { + $this->output( "...skipping: index $old doesn't exist.\n" ); + + return; + } + + $this->db->query( "ALTER INDEX $old RENAME TO $new" ); + } + + protected function dropPgField( $table, $field ) { + $fi = $this->db->fieldInfo( $table, $field ); + if ( is_null( $fi ) ) { + $this->output( "...$table table does not contain $field field.\n" ); + + return; + } else { + $this->output( "Dropping column '$table.$field'\n" ); + $this->db->query( "ALTER TABLE $table DROP COLUMN $field" ); + } + } + + protected function addPgField( $table, $field, $type ) { + $fi = $this->db->fieldInfo( $table, $field ); + if ( !is_null( $fi ) ) { + $this->output( "...column '$table.$field' already exists\n" ); + + return; + } else { + $this->output( "Adding column '$table.$field'\n" ); + $this->db->query( "ALTER TABLE $table ADD $field $type" ); + } + } + + protected function changeField( $table, $field, $newtype, $default ) { + $fi = $this->db->fieldInfo( $table, $field ); + if ( is_null( $fi ) ) { + $this->output( "...ERROR: expected column $table.$field to exist\n" ); + exit( 1 ); + } + + if ( $fi->type() === $newtype ) { + $this->output( "...column '$table.$field' is already of type '$newtype'\n" ); + } else { + $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" ); + $sql = "ALTER TABLE $table ALTER $field TYPE $newtype"; + if ( strlen( $default ) ) { + $res = []; + if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) { + $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]"; + $this->db->query( $sqldef ); + $default = preg_replace( '/\s*DEFAULT .+/', '', $default ); + } + $sql .= " USING $default"; + } + $this->db->query( $sql ); + } + } + + protected function changeFieldPurgeTable( $table, $field, $newtype, $default ) { + # # For a cache table, empty it if the field needs to be changed, because the old contents + # # may be corrupted. If the column is already the desired type, refrain from purging. + $fi = $this->db->fieldInfo( $table, $field ); + if ( is_null( $fi ) ) { + $this->output( "...ERROR: expected column $table.$field to exist\n" ); + exit( 1 ); + } + + if ( $fi->type() === $newtype ) { + $this->output( "...column '$table.$field' is already of type '$newtype'\n" ); + } else { + $this->output( "Purging data from cache table '$table'\n" ); + $this->db->query( "DELETE from $table" ); + $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" ); + $sql = "ALTER TABLE $table ALTER $field TYPE $newtype"; + if ( strlen( $default ) ) { + $res = []; + if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) { + $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]"; + $this->db->query( $sqldef ); + $default = preg_replace( '/\s*DEFAULT .+/', '', $default ); + } + $sql .= " USING $default"; + } + $this->db->query( $sql ); + } + } + + protected function setDefault( $table, $field, $default ) { + $info = $this->db->fieldInfo( $table, $field ); + if ( $info->defaultValue() !== $default ) { + $this->output( "Changing '$table.$field' default value\n" ); + $this->db->query( "ALTER TABLE $table ALTER $field SET DEFAULT " + . $this->db->addQuotes( $default ) ); + } + } + + protected function changeNullableField( $table, $field, $null, $update = false ) { + $fi = $this->db->fieldInfo( $table, $field ); + if ( is_null( $fi ) ) { + $this->output( "...ERROR: expected column $table.$field to exist\n" ); + exit( 1 ); + } + if ( $fi->isNullable() ) { + # # It's NULL - does it need to be NOT NULL? + if ( 'NOT NULL' === $null ) { + $this->output( "Changing '$table.$field' to not allow NULLs\n" ); + if ( $update ) { + $this->db->query( "UPDATE $table SET $field = DEFAULT WHERE $field IS NULL" ); + } + $this->db->query( "ALTER TABLE $table ALTER $field SET NOT NULL" ); + } else { + $this->output( "...column '$table.$field' is already set as NULL\n" ); + } + } else { + # # It's NOT NULL - does it need to be NULL? + if ( 'NULL' === $null ) { + $this->output( "Changing '$table.$field' to allow NULLs\n" ); + $this->db->query( "ALTER TABLE $table ALTER $field DROP NOT NULL" ); + } else { + $this->output( "...column '$table.$field' is already set as NOT NULL\n" ); + } + } + } + + public function addPgIndex( $table, $index, $type ) { + if ( $this->db->indexExists( $table, $index ) ) { + $this->output( "...index '$index' on table '$table' already exists\n" ); + } else { + $this->output( "Creating index '$index' on table '$table' $type\n" ); + $this->db->query( "CREATE INDEX $index ON $table $type" ); + } + } + + public function addPgExtIndex( $table, $index, $type ) { + if ( $this->db->indexExists( $table, $index ) ) { + $this->output( "...index '$index' on table '$table' already exists\n" ); + } else { + if ( preg_match( '/^\(/', $type ) ) { + $this->output( "Creating index '$index' on table '$table'\n" ); + $this->db->query( "CREATE INDEX $index ON $table $type" ); + } else { + $this->applyPatch( $type, true, "Creating index '$index' on table '$table'" ); + } + } + } + + /** + * Add a value to an existing PostgreSQL enum type + * @since 1.31 + * @param string $type Type name. Must be in the core schema. + * @param string $value Value to add. + */ + public function addPgEnumValue( $type, $value ) { + $row = $this->db->selectRow( + [ + 't' => 'pg_catalog.pg_type', + 'n' => 'pg_catalog.pg_namespace', + 'e' => 'pg_catalog.pg_enum', + ], + [ 't.typname', 't.typtype', 'e.enumlabel' ], + [ + 't.typname' => $type, + 'n.nspname' => $this->db->getCoreSchema(), + ], + __METHOD__, + [], + [ + 'n' => [ 'JOIN', 't.typnamespace = n.oid' ], + 'e' => [ 'LEFT JOIN', [ 'e.enumtypid = t.oid', 'e.enumlabel' => $value ] ], + ] + ); + + if ( !$row ) { + $this->output( "...Type $type does not exist, skipping modify enum.\n" ); + } elseif ( $row->typtype !== 'e' ) { + $this->output( "...Type $type does not seem to be an enum, skipping modify enum.\n" ); + } elseif ( $row->enumlabel === $value ) { + $this->output( "...Enum type $type already contains value '$value'.\n" ); + } else { + $this->output( "...Adding value '$value' to enum type $type.\n" ); + $etype = $this->db->addIdentifierQuotes( $type ); + $evalue = $this->db->addQuotes( $value ); + $this->db->query( "ALTER TYPE $etype ADD VALUE $evalue" ); + } + } + + protected function dropFkey( $table, $field ) { + $fi = $this->db->fieldInfo( $table, $field ); + if ( is_null( $fi ) ) { + $this->output( "WARNING! Column '$table.$field' does not exist but it should! " . + "Please report this.\n" ); + return; + } + $conname = $fi->conname(); + if ( $fi->conname() ) { + $this->output( "Dropping foreign key constraint on '$table.$field'\n" ); + $conclause = "CONSTRAINT \"$conname\""; + $command = "ALTER TABLE $table DROP CONSTRAINT $conname"; + $this->db->query( $command ); + } else { + $this->output( "...foreign key constraint on '$table.$field' already does not exist\n" ); + }; + } + + protected function changeFkeyDeferrable( $table, $field, $clause ) { + $fi = $this->db->fieldInfo( $table, $field ); + if ( is_null( $fi ) ) { + $this->output( "WARNING! Column '$table.$field' does not exist but it should! " . + "Please report this.\n" ); + + return; + } + if ( $fi->is_deferred() && $fi->is_deferrable() ) { + return; + } + $this->output( "Altering column '$table.$field' to be DEFERRABLE INITIALLY DEFERRED\n" ); + $conname = $fi->conname(); + if ( $fi->conname() ) { + $conclause = "CONSTRAINT \"$conname\""; + $command = "ALTER TABLE $table DROP CONSTRAINT $conname"; + $this->db->query( $command ); + } else { + $this->output( "Column '$table.$field' does not have a foreign key " . + "constraint, will be added\n" ); + $conclause = ""; + } + $command = + "ALTER TABLE $table ADD $conclause " . + "FOREIGN KEY ($field) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED"; + $this->db->query( $command ); + } + + protected function convertArchive2() { + if ( $this->db->tableExists( "archive2" ) ) { + if ( $this->db->ruleExists( 'archive', 'archive_insert' ) ) { + $this->output( "Dropping rule 'archive_insert'\n" ); + $this->db->query( 'DROP RULE archive_insert ON archive' ); + } + if ( $this->db->ruleExists( 'archive', 'archive_delete' ) ) { + $this->output( "Dropping rule 'archive_delete'\n" ); + $this->db->query( 'DROP RULE archive_delete ON archive' ); + } + $this->applyPatch( + 'patch-remove-archive2.sql', + false, + "Converting 'archive2' back to normal archive table" + ); + } else { + $this->output( "...obsolete table 'archive2' does not exist\n" ); + } + } + + protected function checkOiDeleted() { + if ( $this->db->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) { + $this->output( "Changing 'oldimage.oi_deleted' to type 'smallint'\n" ); + $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" ); + $this->db->query( + "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" ); + $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" ); + } else { + $this->output( "...column 'oldimage.oi_deleted' is already of type 'smallint'\n" ); + } + } + + protected function checkOiNameConstraint() { + if ( $this->db->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) { + $this->output( "...table 'oldimage' has correct cascading delete/update " . + "foreign key to image\n" ); + } else { + if ( $this->db->hasConstraint( "oldimage_oi_name_fkey" ) ) { + $this->db->query( + "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" ); + } + if ( $this->db->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) { + $this->db->query( + "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" ); + } + $this->output( "Making foreign key on table 'oldimage' (to image) a cascade delete/update\n" ); + $this->db->query( + "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " . + "FOREIGN KEY (oi_name) REFERENCES image(img_name) " . + "ON DELETE CASCADE ON UPDATE CASCADE" ); + } + } + + protected function checkPageDeletedTrigger() { + if ( !$this->db->triggerExists( 'page', 'page_deleted' ) ) { + $this->applyPatch( + 'patch-page_deleted.sql', + false, + "Adding function and trigger 'page_deleted' to table 'page'" + ); + } else { + $this->output( "...table 'page' has 'page_deleted' trigger\n" ); + } + } + + protected function dropPgIndex( $table, $index ) { + if ( $this->db->indexExists( $table, $index ) ) { + $this->output( "Dropping obsolete index '$index'\n" ); + $this->db->query( "DROP INDEX \"" . $index . "\"" ); + } + } + + protected function checkIndex( $index, $should_be, $good_def ) { + $pu = $this->db->indexAttributes( $index ); + if ( !empty( $pu ) && $pu != $should_be ) { + $this->output( "Dropping obsolete version of index '$index'\n" ); + $this->db->query( "DROP INDEX \"" . $index . "\"" ); + $pu = []; + } else { + $this->output( "...no need to drop index '$index'\n" ); + } + + if ( empty( $pu ) ) { + $this->output( "Creating index '$index'\n" ); + $this->db->query( $good_def ); + } else { + $this->output( "...index '$index' exists\n" ); + } + } + + protected function checkRevUserFkey() { + if ( $this->fkeyDeltype( 'revision_rev_user_fkey' ) == 'r' ) { + $this->output( "...constraint 'revision_rev_user_fkey' is ON DELETE RESTRICT\n" ); + } else { + $this->applyPatch( + 'patch-revision_rev_user_fkey.sql', + false, + "Changing constraint 'revision_rev_user_fkey' to ON DELETE RESTRICT" + ); + } + } + + protected function checkIwlPrefix() { + if ( $this->db->indexExists( 'iwlinks', 'iwl_prefix' ) ) { + $this->applyPatch( + 'patch-rename-iwl_prefix.sql', + false, + "Replacing index 'iwl_prefix' with 'iwl_prefix_title_from'" + ); + } + } + + protected function addInterwikiType() { + $this->applyPatch( 'patch-add_interwiki.sql', false, "Refreshing add_interwiki()" ); + } + + protected function tsearchFixes() { + # Tweak the page_title tsearch2 trigger to filter out slashes + # This is create or replace, so harmless to call if not needed + $this->applyPatch( 'patch-ts2pagetitle.sql', false, "Refreshing ts2_page_title()" ); + + # If the server is 8.3 or higher, rewrite the tsearch2 triggers + # in case they have the old 'default' versions + # Gather version numbers in case we need them + if ( $this->db->getServerVersion() >= 8.3 ) { + $this->applyPatch( 'patch-tsearch2funcs.sql', false, "Rewriting tsearch2 triggers" ); + } + } + + protected function rebuildTextSearch() { + if ( $this->updateRowExists( 'patch-textsearch_bug66650.sql' ) ) { + $this->output( "...T68650 already fixed or not applicable.\n" ); + return; + }; + $this->applyPatch( 'patch-textsearch_bug66650.sql', false, + 'Rebuilding text search for T68650' ); + } +} |