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<?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
*/
/**
* 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 array(
# rename tables 1.7.3
# r15791 Change reserved word table names "user" and "text"
array( 'renameTable', 'user', 'mwuser' ),
array( 'renameTable', 'text', 'pagecontent' ),
array( 'renameIndex', 'mwuser', 'user_pkey', 'mwuser_pkey'),
array( 'renameIndex', 'mwuser', 'user_user_name_key', 'mwuser_user_name_key' ),
array( 'renameIndex', 'pagecontent','text_pkey', 'pagecontent_pkey' ),
# renamed sequences
array( 'renameSequence', 'ipblocks_ipb_id_val', 'ipblocks_ipb_id_seq' ),
array( 'renameSequence', 'rev_rev_id_val', 'revision_rev_id_seq' ),
array( 'renameSequence', 'text_old_id_val', 'text_old_id_seq' ),
array( 'renameSequence', 'rc_rc_id_seq', 'recentchanges_rc_id_seq' ),
array( 'renameSequence', 'log_log_id_seq', 'logging_log_id_seq' ),
array( 'renameSequence', 'pr_id_val', 'page_restrictions_pr_id_seq' ),
array( 'renameSequence', 'us_id_seq', 'uploadstash_us_id_seq' ),
# since r58263
array( 'renameSequence', 'category_id_seq', 'category_cat_id_seq'),
# new sequences if not renamed above
array( 'addSequence', 'logging', false, 'logging_log_id_seq' ),
array( 'addSequence', 'page_restrictions', false, 'page_restrictions_pr_id_seq' ),
array( 'addSequence', 'filearchive', 'fa_id', 'filearchive_fa_id_seq' ),
# new tables
array( 'addTable', 'category', 'patch-category.sql' ),
array( 'addTable', 'page', 'patch-page.sql' ),
array( 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ),
array( 'addTable', 'page_props', 'patch-page_props.sql' ),
array( 'addTable', 'page_restrictions', 'patch-page_restrictions.sql' ),
array( 'addTable', 'profiling', 'patch-profiling.sql' ),
array( 'addTable', 'protected_titles', 'patch-protected_titles.sql' ),
array( 'addTable', 'redirect', 'patch-redirect.sql' ),
array( 'addTable', 'updatelog', 'patch-updatelog.sql' ),
array( 'addTable', 'change_tag', 'patch-change_tag.sql' ),
array( 'addTable', 'tag_summary', 'patch-tag_summary.sql' ),
array( 'addTable', 'valid_tag', 'patch-valid_tag.sql' ),
array( 'addTable', 'user_properties', 'patch-user_properties.sql' ),
array( 'addTable', 'log_search', 'patch-log_search.sql' ),
array( 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ),
array( 'addTable', 'iwlinks', 'patch-iwlinks.sql' ),
array( 'addTable', 'msg_resource', 'patch-msg_resource.sql' ),
array( 'addTable', 'msg_resource_links','patch-msg_resource_links.sql' ),
array( 'addTable', 'module_deps', 'patch-module_deps.sql' ),
array( 'addTable', 'uploadstash', 'patch-uploadstash.sql' ),
array( 'addTable', 'user_former_groups','patch-user_former_groups.sql' ),
array( 'addTable', 'external_user', 'patch-external_user.sql' ),
array( 'addTable', 'sites', 'patch-sites.sql' ),
# Needed before new field
array( 'convertArchive2' ),
# new fields
array( 'addPgField', 'updatelog', 'ul_value', 'TEXT' ),
array( 'addPgField', 'archive', 'ar_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
array( 'addPgField', 'archive', 'ar_len', 'INTEGER' ),
array( 'addPgField', 'archive', 'ar_page_id', 'INTEGER' ),
array( 'addPgField', 'archive', 'ar_parent_id', 'INTEGER' ),
array( 'addPgField', 'archive', 'ar_content_model', 'TEXT' ),
array( 'addPgField', 'archive', 'ar_content_format', 'TEXT' ),
array( 'addPgField', 'categorylinks', 'cl_sortkey_prefix', "TEXT NOT NULL DEFAULT ''"),
array( 'addPgField', 'categorylinks', 'cl_collation', "TEXT NOT NULL DEFAULT 0"),
array( 'addPgField', 'categorylinks', 'cl_type', "TEXT NOT NULL DEFAULT 'page'"),
array( 'addPgField', 'image', 'img_sha1', "TEXT NOT NULL DEFAULT ''" ),
array( 'addPgField', 'ipblocks', 'ipb_allow_usertalk', 'SMALLINT NOT NULL DEFAULT 0' ),
array( 'addPgField', 'ipblocks', 'ipb_anon_only', 'SMALLINT NOT NULL DEFAULT 0' ),
array( 'addPgField', 'ipblocks', 'ipb_by_text', "TEXT NOT NULL DEFAULT ''" ),
array( 'addPgField', 'ipblocks', 'ipb_block_email', 'SMALLINT NOT NULL DEFAULT 0' ),
array( 'addPgField', 'ipblocks', 'ipb_create_account', 'SMALLINT NOT NULL DEFAULT 1' ),
array( 'addPgField', 'ipblocks', 'ipb_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
array( 'addPgField', 'ipblocks', 'ipb_enable_autoblock', 'SMALLINT NOT NULL DEFAULT 1' ),
array( 'addPgField', 'ipblocks', 'ipb_parent_block_id', 'INTEGER DEFAULT NULL REFERENCES ipblocks(ipb_id) ON DELETE SET NULL DEFERRABLE INITIALLY DEFERRED' ),
array( 'addPgField', 'filearchive', 'fa_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
array( 'addPgField', 'filearchive', 'fa_sha1', "TEXT NOT NULL DEFAULT ''" ),
array( 'addPgField', 'logging', 'log_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
array( 'addPgField', 'logging', 'log_id', "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ),
array( 'addPgField', 'logging', 'log_params', 'TEXT' ),
array( 'addPgField', 'mwuser', 'user_editcount', 'INTEGER' ),
array( 'addPgField', 'mwuser', 'user_newpass_time', 'TIMESTAMPTZ' ),
array( 'addPgField', 'oldimage', 'oi_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
array( 'addPgField', 'oldimage', 'oi_major_mime', "TEXT NOT NULL DEFAULT 'unknown'" ),
array( 'addPgField', 'oldimage', 'oi_media_type', 'TEXT' ),
array( 'addPgField', 'oldimage', 'oi_metadata', "BYTEA NOT NULL DEFAULT ''" ),
array( 'addPgField', 'oldimage', 'oi_minor_mime', "TEXT NOT NULL DEFAULT 'unknown'" ),
array( 'addPgField', 'oldimage', 'oi_sha1', "TEXT NOT NULL DEFAULT ''" ),
array( 'addPgField', 'page', 'page_content_model', 'TEXT' ),
array( 'addPgField', 'page_restrictions', 'pr_id', "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_seq')" ),
array( 'addPgField', 'profiling', 'pf_memory', 'NUMERIC(18,10) NOT NULL DEFAULT 0' ),
array( 'addPgField', 'recentchanges', 'rc_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
array( 'addPgField', 'recentchanges', 'rc_log_action', 'TEXT' ),
array( 'addPgField', 'recentchanges', 'rc_log_type', 'TEXT' ),
array( 'addPgField', 'recentchanges', 'rc_logid', 'INTEGER NOT NULL DEFAULT 0' ),
array( 'addPgField', 'recentchanges', 'rc_new_len', 'INTEGER' ),
array( 'addPgField', 'recentchanges', 'rc_old_len', 'INTEGER' ),
array( 'addPgField', 'recentchanges', 'rc_params', 'TEXT' ),
array( 'addPgField', 'redirect', 'rd_interwiki', 'TEXT NULL' ),
array( 'addPgField', 'redirect', 'rd_fragment', 'TEXT NULL' ),
array( 'addPgField', 'revision', 'rev_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
array( 'addPgField', 'revision', 'rev_len', 'INTEGER' ),
array( 'addPgField', 'revision', 'rev_parent_id', 'INTEGER DEFAULT NULL' ),
array( 'addPgField', 'revision', 'rev_content_model', 'TEXT' ),
array( 'addPgField', 'revision', 'rev_content_format', 'TEXT' ),
array( 'addPgField', 'site_stats', 'ss_active_users', "INTEGER DEFAULT '-1'" ),
array( 'addPgField', 'user_newtalk', 'user_last_timestamp', 'TIMESTAMPTZ' ),
array( 'addPgField', 'logging', 'log_user_text', "TEXT NOT NULL DEFAULT ''" ),
array( 'addPgField', 'logging', 'log_page', 'INTEGER' ),
array( 'addPgField', 'interwiki', 'iw_api', "TEXT NOT NULL DEFAULT ''"),
array( 'addPgField', 'interwiki', 'iw_wikiid', "TEXT NOT NULL DEFAULT ''"),
array( 'addPgField', 'revision', 'rev_sha1', "TEXT NOT NULL DEFAULT ''" ),
array( 'addPgField', 'archive', 'ar_sha1', "TEXT NOT NULL DEFAULT ''" ),
array( 'addPgField', 'uploadstash', 'us_chunk_inx', "INTEGER NULL" ),
array( 'addPgField', 'job', 'job_timestamp', "TIMESTAMPTZ" ),
array( 'addPgField', 'job', 'job_random', "INTEGER NOT NULL DEFAULT 0" ),
array( 'addPgField', 'job', 'job_attempts', "INTEGER NOT NULL DEFAULT 0" ),
array( 'addPgField', 'job', 'job_token', "TEXT NOT NULL DEFAULT ''" ),
array( 'addPgField', 'job', 'job_token_timestamp', "TIMESTAMPTZ" ),
array( 'addPgField', 'job', 'job_sha1', "TEXT NOT NULL DEFAULT ''" ),
# type changes
array( 'changeField', 'archive', 'ar_deleted', 'smallint', '' ),
array( 'changeField', 'archive', 'ar_minor_edit', 'smallint', 'ar_minor_edit::smallint DEFAULT 0' ),
array( 'changeField', 'filearchive', 'fa_deleted', 'smallint', '' ),
array( 'changeField', 'filearchive', 'fa_height', 'integer', '' ),
array( 'changeField', 'filearchive', 'fa_metadata', 'bytea', "decode(fa_metadata,'escape')" ),
array( 'changeField', 'filearchive', 'fa_size', 'integer', '' ),
array( 'changeField', 'filearchive', 'fa_width', 'integer', '' ),
array( 'changeField', 'filearchive', 'fa_storage_group', 'text', '' ),
array( 'changeField', 'filearchive', 'fa_storage_key', 'text', '' ),
array( 'changeField', 'image', 'img_metadata', 'bytea', "decode(img_metadata,'escape')" ),
array( 'changeField', 'image', 'img_size', 'integer', '' ),
array( 'changeField', 'image', 'img_width', 'integer', '' ),
array( 'changeField', 'image', 'img_height', 'integer', '' ),
array( 'changeField', 'interwiki', 'iw_local', 'smallint', 'iw_local::smallint' ),
array( 'changeField', 'interwiki', 'iw_trans', 'smallint', 'iw_trans::smallint DEFAULT 0' ),
array( 'changeField', 'ipblocks', 'ipb_auto', 'smallint', 'ipb_auto::smallint DEFAULT 0' ),
array( 'changeField', 'ipblocks', 'ipb_anon_only', 'smallint', "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ),
array( 'changeField', 'ipblocks', 'ipb_create_account', 'smallint', "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ),
array( 'changeField', 'ipblocks', 'ipb_enable_autoblock', 'smallint', "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ),
array( 'changeField', 'ipblocks', 'ipb_block_email', 'smallint', "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ),
array( 'changeField', 'ipblocks', 'ipb_address', 'text', 'ipb_address::text' ),
array( 'changeField', 'ipblocks', 'ipb_deleted', 'smallint', 'ipb_deleted::smallint DEFAULT 0' ),
array( 'changeField', 'mwuser', 'user_token', 'text', '' ),
array( 'changeField', 'mwuser', 'user_email_token', 'text', '' ),
array( 'changeField', 'objectcache', 'keyname', 'text', '' ),
array( 'changeField', 'oldimage', 'oi_height', 'integer', '' ),
array( 'changeField', 'oldimage', 'oi_metadata', 'bytea', "decode(img_metadata,'escape')" ),
array( 'changeField', 'oldimage', 'oi_size', 'integer', '' ),
array( 'changeField', 'oldimage', 'oi_width', 'integer', '' ),
array( 'changeField', 'page', 'page_is_redirect', 'smallint', 'page_is_redirect::smallint DEFAULT 0' ),
array( 'changeField', 'page', 'page_is_new', 'smallint', 'page_is_new::smallint DEFAULT 0' ),
array( 'changeField', 'querycache', 'qc_value', 'integer', '' ),
array( 'changeField', 'querycachetwo', 'qcc_value', 'integer', '' ),
array( 'changeField', 'recentchanges', 'rc_bot', 'smallint', 'rc_bot::smallint DEFAULT 0' ),
array( 'changeField', 'recentchanges', 'rc_deleted', 'smallint', '' ),
array( 'changeField', 'recentchanges', 'rc_minor', 'smallint', 'rc_minor::smallint DEFAULT 0' ),
array( 'changeField', 'recentchanges', 'rc_new', 'smallint', 'rc_new::smallint DEFAULT 0' ),
array( 'changeField', 'recentchanges', 'rc_type', 'smallint', 'rc_type::smallint DEFAULT 0' ),
array( 'changeField', 'recentchanges', 'rc_patrolled', 'smallint', 'rc_patrolled::smallint DEFAULT 0' ),
array( 'changeField', 'revision', 'rev_deleted', 'smallint', 'rev_deleted::smallint DEFAULT 0' ),
array( 'changeField', 'revision', 'rev_minor_edit', 'smallint', 'rev_minor_edit::smallint DEFAULT 0' ),
array( 'changeField', 'templatelinks', 'tl_namespace', 'smallint', 'tl_namespace::smallint' ),
array( 'changeField', 'user_newtalk', 'user_ip', 'text', 'host(user_ip)' ),
array( 'changeField', 'uploadstash', 'us_image_bits', 'smallint', '' ),
# null changes
array( 'changeNullableField', 'oldimage', 'oi_bits', 'NULL' ),
array( 'changeNullableField', 'oldimage', 'oi_timestamp', 'NULL' ),
array( 'changeNullableField', 'oldimage', 'oi_major_mime', 'NULL' ),
array( 'changeNullableField', 'oldimage', 'oi_minor_mime', 'NULL' ),
array( 'changeNullableField', 'image', 'img_metadata', 'NOT NULL'),
array( 'changeNullableField', 'filearchive', 'fa_metadata', 'NOT NULL'),
array( 'changeNullableField', 'recentchanges', 'rc_cur_id', 'NULL' ),
array( 'checkOiDeleted' ),
# New indexes
array( 'addPgIndex', 'archive', 'archive_user_text', '(ar_user_text)' ),
array( 'addPgIndex', 'image', 'img_sha1', '(img_sha1)' ),
array( 'addPgIndex', 'ipblocks', 'ipb_parent_block_id', '(ipb_parent_block_id)' ),
array( 'addPgIndex', 'oldimage', 'oi_sha1', '(oi_sha1)' ),
array( 'addPgIndex', 'page', 'page_mediawiki_title', '(page_title) WHERE page_namespace = 8' ),
array( 'addPgIndex', 'pagelinks', 'pagelinks_title', '(pl_title)' ),
array( 'addPgIndex', 'page_props', 'pp_propname_page', '(pp_propname, pp_page)' ),
array( 'addPgIndex', 'revision', 'rev_text_id_idx', '(rev_text_id)' ),
array( 'addPgIndex', 'recentchanges', 'rc_timestamp_bot', '(rc_timestamp) WHERE rc_bot = 0' ),
array( 'addPgIndex', 'templatelinks', 'templatelinks_from', '(tl_from)' ),
array( 'addPgIndex', 'watchlist', 'wl_user', '(wl_user)' ),
array( 'addPgIndex', 'logging', 'logging_user_type_time', '(log_user, log_type, log_timestamp)' ),
array( 'addPgIndex', 'logging', 'logging_page_id_time', '(log_page,log_timestamp)' ),
array( 'addPgIndex', 'iwlinks', 'iwl_prefix_title_from', '(iwl_prefix, iwl_title, iwl_from)' ),
array( 'addPgIndex', 'job', 'job_timestamp_idx', '(job_timestamp)' ),
array( 'addPgIndex', 'job', 'job_sha1', '(job_sha1)' ),
array( 'addPgIndex', 'job', 'job_cmd_token', '(job_cmd, job_token, job_random)' ),
array( 'addPgIndex', 'job', 'job_cmd_token_id', '(job_cmd, job_token, job_id)' ),
array( 'addPgIndex', 'filearchive', 'fa_sha1', '(fa_sha1)' ),
array( 'checkIndex', 'pagelink_unique', array(
array( 'pl_from', 'int4_ops', 'btree', 0 ),
array( 'pl_namespace', 'int2_ops', 'btree', 0 ),
array( 'pl_title', 'text_ops', 'btree', 0 ),
),
'CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)' ),
array( 'checkIndex', 'cl_sortkey', array(
array( 'cl_to', 'text_ops', 'btree', 0 ),
array( 'cl_sortkey', 'text_ops', 'btree', 0 ),
array( 'cl_from', 'int4_ops', 'btree', 0 ),
),
'CREATE INDEX cl_sortkey ON "categorylinks" USING "btree" ("cl_to", "cl_sortkey", "cl_from")' ),
array( 'checkIndex', 'logging_times', array(
array( 'log_timestamp', 'timestamptz_ops', 'btree', 0 ),
),
'CREATE INDEX "logging_times" ON "logging" USING "btree" ("log_timestamp")' ),
array( 'dropIndex', 'oldimage', 'oi_name' ),
array( 'checkIndex', 'oi_name_archive_name', array(
array( 'oi_name', 'text_ops', 'btree', 0 ),
array( 'oi_archive_name', 'text_ops', 'btree', 0 ),
),
'CREATE INDEX "oi_name_archive_name" ON "oldimage" USING "btree" ("oi_name", "oi_archive_name")' ),
array( 'checkIndex', 'oi_name_timestamp', array(
array( 'oi_name', 'text_ops', 'btree', 0 ),
array( 'oi_timestamp', 'timestamptz_ops', 'btree', 0 ),
),
'CREATE INDEX "oi_name_timestamp" ON "oldimage" USING "btree" ("oi_name", "oi_timestamp")' ),
array( 'checkIndex', 'page_main_title', array(
array( '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)' ),
array( 'checkIndex', 'page_mediawiki_title', array(
array( '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)' ),
array( 'checkIndex', 'page_project_title', array(
array( '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)' ),
array( 'checkIndex', 'page_talk_title', array(
array( '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)' ),
array( 'checkIndex', 'page_user_title', array(
array( '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)' ),
array( 'checkIndex', 'page_utalk_title', array(
array( '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)' ),
array( 'checkIndex', 'ts2_page_text', array(
array( 'textvector', 'tsvector_ops', 'gist', 0 ),
),
'CREATE INDEX "ts2_page_text" ON "pagecontent" USING "gist" ("textvector")' ),
array( 'checkIndex', 'ts2_page_title', array(
array( 'titlevector', 'tsvector_ops', 'gist', 0 ),
),
'CREATE INDEX "ts2_page_title" ON "page" USING "gist" ("titlevector")' ),
array( 'checkOiNameConstraint' ),
array( 'checkPageDeletedTrigger' ),
array( 'checkRevUserFkey' ),
array( 'dropIndex', 'ipblocks', 'ipb_address'),
array( 'checkIndex', 'ipb_address_unique', array(
array( 'ipb_address', 'text_ops', 'btree', 0 ),
array( 'ipb_user', 'int4_ops', 'btree', 0 ),
array( 'ipb_auto', 'int2_ops', 'btree', 0 ),
array( 'ipb_anon_only', 'int2_ops', 'btree', 0 ),
),
'CREATE UNIQUE INDEX ipb_address_unique ON ipblocks (ipb_address,ipb_user,ipb_auto,ipb_anon_only)' ),
array( 'checkIwlPrefix' ),
# All FK columns should be deferred
array( 'changeFkeyDeferrable', 'archive', 'ar_user', 'mwuser(user_id) ON DELETE SET NULL' ),
array( 'changeFkeyDeferrable', 'categorylinks', 'cl_from', 'page(page_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'externallinks', 'el_from', 'page(page_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'filearchive', 'fa_deleted_user', 'mwuser(user_id) ON DELETE SET NULL' ),
array( 'changeFkeyDeferrable', 'filearchive', 'fa_user', 'mwuser(user_id) ON DELETE SET NULL' ),
array( 'changeFkeyDeferrable', 'image', 'img_user', 'mwuser(user_id) ON DELETE SET NULL' ),
array( 'changeFkeyDeferrable', 'imagelinks', 'il_from', 'page(page_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_by', 'mwuser(user_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_user', 'mwuser(user_id) ON DELETE SET NULL' ),
array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_parent_block_id', 'ipblocks(ipb_id) ON DELETE SET NULL' ),
array( 'changeFkeyDeferrable', 'langlinks', 'll_from', 'page(page_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'logging', 'log_user', 'mwuser(user_id) ON DELETE SET NULL' ),
array( 'changeFkeyDeferrable', 'oldimage', 'oi_name', 'image(img_name) ON DELETE CASCADE ON UPDATE CASCADE' ),
array( 'changeFkeyDeferrable', 'oldimage', 'oi_user', 'mwuser(user_id) ON DELETE SET NULL' ),
array( 'changeFkeyDeferrable', 'pagelinks', 'pl_from', 'page(page_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'page_props', 'pp_page', 'page (page_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'page_restrictions', 'pr_page', 'page(page_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'protected_titles', 'pt_user', 'mwuser(user_id) ON DELETE SET NULL' ),
array( 'changeFkeyDeferrable', 'recentchanges', 'rc_cur_id', 'page(page_id) ON DELETE SET NULL' ),
array( 'changeFkeyDeferrable', 'recentchanges', 'rc_user', 'mwuser(user_id) ON DELETE SET NULL' ),
array( 'changeFkeyDeferrable', 'redirect', 'rd_from', 'page(page_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'revision', 'rev_page', 'page (page_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'revision', 'rev_user', 'mwuser(user_id) ON DELETE RESTRICT' ),
array( 'changeFkeyDeferrable', 'templatelinks', 'tl_from', 'page(page_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'user_groups', 'ug_user', 'mwuser(user_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'user_newtalk', 'user_id', 'mwuser(user_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'user_properties', 'up_user', 'mwuser(user_id) ON DELETE CASCADE' ),
array( 'changeFkeyDeferrable', 'watchlist', 'wl_user', 'mwuser(user_id) ON DELETE CASCADE' ),
# r81574
array( 'addInterwikiType' ),
# end
array( 'tsearchFixes' ),
);
}
protected function getOldGlobalUpdates() {
global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
$updates = array();
# Add missing extension tables
foreach ( $wgExtNewTables as $tableRecord ) {
$updates[] = array(
'addTable', $tableRecord[0], $tableRecord[1], true
);
}
# Add missing extension fields
foreach ( $wgExtPGNewFields as $fieldRecord ) {
$updates[] = array(
'addPgField', $fieldRecord[0], $fieldRecord[1],
$fieldRecord[2]
);
}
# Change altered columns
foreach ( $wgExtPGAlteredFields as $fieldRecord ) {
$updates[] = array(
'changeField', $fieldRecord[0], $fieldRecord[1],
$fieldRecord[2]
);
}
# Add missing extension indexes
foreach ( $wgExtNewIndexes as $fieldRecord ) {
$updates[] = array(
'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 = array();
foreach ( $res as $r ) {
$cols[] = array(
"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;
}
if ( !( $r = $this->db->fetchRow( $res ) ) ) {
return null;
}
$indkey = $r[0];
$relid = intval( $r[1] );
$indkeys = explode( ' ', $indkey );
$colnames = array();
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;
}
if ( !( $row2 = $this->db->fetchRow( $r2 ) ) ) {
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 )
)
);
if ( !( $row = $this->db->fetchRow( $r ) ) ) {
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" );
$this->db->query( "CREATE SEQUENCE $ns" );
if( $pkey !== false ) {
$this->setDefault( $table, $pkey, '"nextval"(\'"' . $ns . '"\'::"regclass")' );
}
}
}
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 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 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 = array();
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 " . $default );
}
}
protected function changeNullableField( $table, $field, $null) {
$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" );
$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'" );
}
}
}
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 dropIndex( $table, $index, $patch = '', $fullpath = false ) {
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 = array();
} 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_from_title'" );
}
}
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" );
}
}
}