MessageCache invalidation improvements
[mediawiki.git] / includes / installer / PostgresUpdater.php
blob790fbe7b3113ba719489f33e53a8f212becf8c71
1 <?php
2 /**
3 * PostgreSQL-specific updater.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
20 * @file
21 * @ingroup Deployment
24 /**
25 * Class for handling updates to Postgres databases.
27 * @ingroup Deployment
28 * @since 1.17
30 class PostgresUpdater extends DatabaseUpdater {
32 /**
33 * @var DatabasePostgres
35 protected $db;
37 /**
38 * @todo FIXME: Postgres should use sequential updates like Mysql, Sqlite
39 * and everybody else. It never got refactored like it should've.
40 * @return array
42 protected function getCoreUpdateList() {
43 return [
44 # rename tables 1.7.3
45 # r15791 Change reserved word table names "user" and "text"
46 [ 'renameTable', 'user', 'mwuser' ],
47 [ 'renameTable', 'text', 'pagecontent' ],
48 [ 'renameIndex', 'mwuser', 'user_pkey', 'mwuser_pkey' ],
49 [ 'renameIndex', 'mwuser', 'user_user_name_key', 'mwuser_user_name_key' ],
50 [ 'renameIndex', 'pagecontent', 'text_pkey', 'pagecontent_pkey' ],
52 # renamed sequences
53 [ 'renameSequence', 'ipblocks_ipb_id_val', 'ipblocks_ipb_id_seq' ],
54 [ 'renameSequence', 'rev_rev_id_val', 'revision_rev_id_seq' ],
55 [ 'renameSequence', 'text_old_id_val', 'text_old_id_seq' ],
56 [ 'renameSequence', 'rc_rc_id_seq', 'recentchanges_rc_id_seq' ],
57 [ 'renameSequence', 'log_log_id_seq', 'logging_log_id_seq' ],
58 [ 'renameSequence', 'pr_id_val', 'page_restrictions_pr_id_seq' ],
59 [ 'renameSequence', 'us_id_seq', 'uploadstash_us_id_seq' ],
61 # since r58263
62 [ 'renameSequence', 'category_id_seq', 'category_cat_id_seq' ],
64 # new sequences if not renamed above
65 [ 'addSequence', 'logging', false, 'logging_log_id_seq' ],
66 [ 'addSequence', 'page_restrictions', false, 'page_restrictions_pr_id_seq' ],
67 [ 'addSequence', 'filearchive', 'fa_id', 'filearchive_fa_id_seq' ],
68 [ 'addSequence', 'archive', false, 'archive_ar_id_seq' ],
69 [ 'addSequence', 'externallinks', false, 'externallinks_el_id_seq' ],
70 [ 'addSequence', 'watchlist', false, 'watchlist_wl_id_seq' ],
71 [ 'addSequence', 'change_tag', false, 'change_tag_ct_id_seq' ],
72 [ 'addSequence', 'tag_summary', false, 'tag_summary_ts_id_seq' ],
74 # new tables
75 [ 'addTable', 'category', 'patch-category.sql' ],
76 [ 'addTable', 'page', 'patch-page.sql' ],
77 [ 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ],
78 [ 'addTable', 'page_props', 'patch-page_props.sql' ],
79 [ 'addTable', 'page_restrictions', 'patch-page_restrictions.sql' ],
80 [ 'addTable', 'profiling', 'patch-profiling.sql' ],
81 [ 'addTable', 'protected_titles', 'patch-protected_titles.sql' ],
82 [ 'addTable', 'redirect', 'patch-redirect.sql' ],
83 [ 'addTable', 'updatelog', 'patch-updatelog.sql' ],
84 [ 'addTable', 'change_tag', 'patch-change_tag.sql' ],
85 [ 'addTable', 'tag_summary', 'patch-tag_summary.sql' ],
86 [ 'addTable', 'valid_tag', 'patch-valid_tag.sql' ],
87 [ 'addTable', 'user_properties', 'patch-user_properties.sql' ],
88 [ 'addTable', 'log_search', 'patch-log_search.sql' ],
89 [ 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ],
90 [ 'addTable', 'iwlinks', 'patch-iwlinks.sql' ],
91 [ 'addTable', 'module_deps', 'patch-module_deps.sql' ],
92 [ 'addTable', 'uploadstash', 'patch-uploadstash.sql' ],
93 [ 'addTable', 'user_former_groups', 'patch-user_former_groups.sql' ],
94 [ 'addTable', 'sites', 'patch-sites.sql' ],
95 [ 'addTable', 'bot_passwords', 'patch-bot_passwords.sql' ],
97 # Needed before new field
98 [ 'convertArchive2' ],
100 # new fields
101 [ 'addPgField', 'updatelog', 'ul_value', 'TEXT' ],
102 [ 'addPgField', 'archive', 'ar_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
103 [ 'addPgField', 'archive', 'ar_len', 'INTEGER' ],
104 [ 'addPgField', 'archive', 'ar_page_id', 'INTEGER' ],
105 [ 'addPgField', 'archive', 'ar_parent_id', 'INTEGER' ],
106 [ 'addPgField', 'archive', 'ar_content_model', 'TEXT' ],
107 [ 'addPgField', 'archive', 'ar_content_format', 'TEXT' ],
108 [ 'addPgField', 'categorylinks', 'cl_sortkey_prefix', "TEXT NOT NULL DEFAULT ''" ],
109 [ 'addPgField', 'categorylinks', 'cl_collation', "TEXT NOT NULL DEFAULT 0" ],
110 [ 'addPgField', 'categorylinks', 'cl_type', "TEXT NOT NULL DEFAULT 'page'" ],
111 [ 'addPgField', 'image', 'img_sha1', "TEXT NOT NULL DEFAULT ''" ],
112 [ 'addPgField', 'ipblocks', 'ipb_allow_usertalk', 'SMALLINT NOT NULL DEFAULT 0' ],
113 [ 'addPgField', 'ipblocks', 'ipb_anon_only', 'SMALLINT NOT NULL DEFAULT 0' ],
114 [ 'addPgField', 'ipblocks', 'ipb_by_text', "TEXT NOT NULL DEFAULT ''" ],
115 [ 'addPgField', 'ipblocks', 'ipb_block_email', 'SMALLINT NOT NULL DEFAULT 0' ],
116 [ 'addPgField', 'ipblocks', 'ipb_create_account', 'SMALLINT NOT NULL DEFAULT 1' ],
117 [ 'addPgField', 'ipblocks', 'ipb_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
118 [ 'addPgField', 'ipblocks', 'ipb_enable_autoblock', 'SMALLINT NOT NULL DEFAULT 1' ],
119 [ 'addPgField', 'ipblocks', 'ipb_parent_block_id',
120 'INTEGER DEFAULT NULL REFERENCES ipblocks(ipb_id) ' .
121 'ON DELETE SET NULL DEFERRABLE INITIALLY DEFERRED' ],
122 [ 'addPgField', 'filearchive', 'fa_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
123 [ 'addPgField', 'filearchive', 'fa_sha1', "TEXT NOT NULL DEFAULT ''" ],
124 [ 'addPgField', 'logging', 'log_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
125 [ 'addPgField', 'logging', 'log_id',
126 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ],
127 [ 'addPgField', 'logging', 'log_params', 'TEXT' ],
128 [ 'addPgField', 'mwuser', 'user_editcount', 'INTEGER' ],
129 [ 'addPgField', 'mwuser', 'user_newpass_time', 'TIMESTAMPTZ' ],
130 [ 'addPgField', 'oldimage', 'oi_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
131 [ 'addPgField', 'oldimage', 'oi_major_mime', "TEXT NOT NULL DEFAULT 'unknown'" ],
132 [ 'addPgField', 'oldimage', 'oi_media_type', 'TEXT' ],
133 [ 'addPgField', 'oldimage', 'oi_metadata', "BYTEA NOT NULL DEFAULT ''" ],
134 [ 'addPgField', 'oldimage', 'oi_minor_mime', "TEXT NOT NULL DEFAULT 'unknown'" ],
135 [ 'addPgField', 'oldimage', 'oi_sha1', "TEXT NOT NULL DEFAULT ''" ],
136 [ 'addPgField', 'page', 'page_content_model', 'TEXT' ],
137 [ 'addPgField', 'page_restrictions', 'pr_id',
138 "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_seq')" ],
139 [ 'addPgField', 'profiling', 'pf_memory', 'NUMERIC(18,10) NOT NULL DEFAULT 0' ],
140 [ 'addPgField', 'recentchanges', 'rc_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
141 [ 'addPgField', 'recentchanges', 'rc_log_action', 'TEXT' ],
142 [ 'addPgField', 'recentchanges', 'rc_log_type', 'TEXT' ],
143 [ 'addPgField', 'recentchanges', 'rc_logid', 'INTEGER NOT NULL DEFAULT 0' ],
144 [ 'addPgField', 'recentchanges', 'rc_new_len', 'INTEGER' ],
145 [ 'addPgField', 'recentchanges', 'rc_old_len', 'INTEGER' ],
146 [ 'addPgField', 'recentchanges', 'rc_params', 'TEXT' ],
147 [ 'addPgField', 'redirect', 'rd_interwiki', 'TEXT NULL' ],
148 [ 'addPgField', 'redirect', 'rd_fragment', 'TEXT NULL' ],
149 [ 'addPgField', 'revision', 'rev_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
150 [ 'addPgField', 'revision', 'rev_len', 'INTEGER' ],
151 [ 'addPgField', 'revision', 'rev_parent_id', 'INTEGER DEFAULT NULL' ],
152 [ 'addPgField', 'revision', 'rev_content_model', 'TEXT' ],
153 [ 'addPgField', 'revision', 'rev_content_format', 'TEXT' ],
154 [ 'addPgField', 'site_stats', 'ss_active_users', "INTEGER DEFAULT '-1'" ],
155 [ 'addPgField', 'user_newtalk', 'user_last_timestamp', 'TIMESTAMPTZ' ],
156 [ 'addPgField', 'logging', 'log_user_text', "TEXT NOT NULL DEFAULT ''" ],
157 [ 'addPgField', 'logging', 'log_page', 'INTEGER' ],
158 [ 'addPgField', 'interwiki', 'iw_api', "TEXT NOT NULL DEFAULT ''" ],
159 [ 'addPgField', 'interwiki', 'iw_wikiid', "TEXT NOT NULL DEFAULT ''" ],
160 [ 'addPgField', 'revision', 'rev_sha1', "TEXT NOT NULL DEFAULT ''" ],
161 [ 'addPgField', 'archive', 'ar_sha1', "TEXT NOT NULL DEFAULT ''" ],
162 [ 'addPgField', 'uploadstash', 'us_chunk_inx', "INTEGER NULL" ],
163 [ 'addPgField', 'job', 'job_timestamp', "TIMESTAMPTZ" ],
164 [ 'addPgField', 'job', 'job_random', "INTEGER NOT NULL DEFAULT 0" ],
165 [ 'addPgField', 'job', 'job_attempts', "INTEGER NOT NULL DEFAULT 0" ],
166 [ 'addPgField', 'job', 'job_token', "TEXT NOT NULL DEFAULT ''" ],
167 [ 'addPgField', 'job', 'job_token_timestamp', "TIMESTAMPTZ" ],
168 [ 'addPgField', 'job', 'job_sha1', "TEXT NOT NULL DEFAULT ''" ],
169 [ 'addPgField', 'archive', 'ar_id',
170 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('archive_ar_id_seq')" ],
171 [ 'addPgField', 'externallinks', 'el_id',
172 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('externallinks_el_id_seq')" ],
173 [ 'addPgField', 'uploadstash', 'us_props', "BYTEA" ],
175 # type changes
176 [ 'changeField', 'archive', 'ar_deleted', 'smallint', '' ],
177 [ 'changeField', 'archive', 'ar_minor_edit', 'smallint',
178 'ar_minor_edit::smallint DEFAULT 0' ],
179 [ 'changeField', 'filearchive', 'fa_deleted', 'smallint', '' ],
180 [ 'changeField', 'filearchive', 'fa_height', 'integer', '' ],
181 [ 'changeField', 'filearchive', 'fa_metadata', 'bytea', "decode(fa_metadata,'escape')" ],
182 [ 'changeField', 'filearchive', 'fa_size', 'integer', '' ],
183 [ 'changeField', 'filearchive', 'fa_width', 'integer', '' ],
184 [ 'changeField', 'filearchive', 'fa_storage_group', 'text', '' ],
185 [ 'changeField', 'filearchive', 'fa_storage_key', 'text', '' ],
186 [ 'changeField', 'image', 'img_metadata', 'bytea', "decode(img_metadata,'escape')" ],
187 [ 'changeField', 'image', 'img_size', 'integer', '' ],
188 [ 'changeField', 'image', 'img_width', 'integer', '' ],
189 [ 'changeField', 'image', 'img_height', 'integer', '' ],
190 [ 'changeField', 'interwiki', 'iw_local', 'smallint', 'iw_local::smallint' ],
191 [ 'changeField', 'interwiki', 'iw_trans', 'smallint', 'iw_trans::smallint DEFAULT 0' ],
192 [ 'changeField', 'ipblocks', 'ipb_auto', 'smallint', 'ipb_auto::smallint DEFAULT 0' ],
193 [ 'changeField', 'ipblocks', 'ipb_anon_only', 'smallint',
194 "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ],
195 [ 'changeField', 'ipblocks', 'ipb_create_account', 'smallint',
196 "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ],
197 [ 'changeField', 'ipblocks', 'ipb_enable_autoblock', 'smallint',
198 "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ],
199 [ 'changeField', 'ipblocks', 'ipb_block_email', 'smallint',
200 "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ],
201 [ 'changeField', 'ipblocks', 'ipb_address', 'text', 'ipb_address::text' ],
202 [ 'changeField', 'ipblocks', 'ipb_deleted', 'smallint', 'ipb_deleted::smallint DEFAULT 0' ],
203 [ 'changeField', 'mwuser', 'user_token', 'text', '' ],
204 [ 'changeField', 'mwuser', 'user_email_token', 'text', '' ],
205 [ 'changeField', 'objectcache', 'keyname', 'text', '' ],
206 [ 'changeField', 'oldimage', 'oi_height', 'integer', '' ],
207 [ 'changeField', 'oldimage', 'oi_metadata', 'bytea', "decode(img_metadata,'escape')" ],
208 [ 'changeField', 'oldimage', 'oi_size', 'integer', '' ],
209 [ 'changeField', 'oldimage', 'oi_width', 'integer', '' ],
210 [ 'changeField', 'page', 'page_is_redirect', 'smallint',
211 'page_is_redirect::smallint DEFAULT 0' ],
212 [ 'changeField', 'page', 'page_is_new', 'smallint', 'page_is_new::smallint DEFAULT 0' ],
213 [ 'changeField', 'querycache', 'qc_value', 'integer', '' ],
214 [ 'changeField', 'querycachetwo', 'qcc_value', 'integer', '' ],
215 [ 'changeField', 'recentchanges', 'rc_bot', 'smallint', 'rc_bot::smallint DEFAULT 0' ],
216 [ 'changeField', 'recentchanges', 'rc_deleted', 'smallint', '' ],
217 [ 'changeField', 'recentchanges', 'rc_minor', 'smallint', 'rc_minor::smallint DEFAULT 0' ],
218 [ 'changeField', 'recentchanges', 'rc_new', 'smallint', 'rc_new::smallint DEFAULT 0' ],
219 [ 'changeField', 'recentchanges', 'rc_type', 'smallint', 'rc_type::smallint DEFAULT 0' ],
220 [ 'changeField', 'recentchanges', 'rc_patrolled', 'smallint',
221 'rc_patrolled::smallint DEFAULT 0' ],
222 [ 'changeField', 'revision', 'rev_deleted', 'smallint', 'rev_deleted::smallint DEFAULT 0' ],
223 [ 'changeField', 'revision', 'rev_minor_edit', 'smallint',
224 'rev_minor_edit::smallint DEFAULT 0' ],
225 [ 'changeField', 'templatelinks', 'tl_namespace', 'smallint', 'tl_namespace::smallint' ],
226 [ 'changeField', 'user_newtalk', 'user_ip', 'text', 'host(user_ip)' ],
227 [ 'changeField', 'uploadstash', 'us_image_bits', 'smallint', '' ],
228 [ 'changeField', 'profiling', 'pf_time', 'float', '' ],
229 [ 'changeField', 'profiling', 'pf_memory', 'float', '' ],
231 # null changes
232 [ 'changeNullableField', 'oldimage', 'oi_bits', 'NULL' ],
233 [ 'changeNullableField', 'oldimage', 'oi_timestamp', 'NULL' ],
234 [ 'changeNullableField', 'oldimage', 'oi_major_mime', 'NULL' ],
235 [ 'changeNullableField', 'oldimage', 'oi_minor_mime', 'NULL' ],
236 [ 'changeNullableField', 'image', 'img_metadata', 'NOT NULL' ],
237 [ 'changeNullableField', 'filearchive', 'fa_metadata', 'NOT NULL' ],
238 [ 'changeNullableField', 'recentchanges', 'rc_cur_id', 'NULL' ],
239 [ 'changeNullableField', 'recentchanges', 'rc_cur_time', 'NULL' ],
241 [ 'checkOiDeleted' ],
243 # New indexes
244 [ 'addPgIndex', 'archive', 'archive_user_text', '(ar_user_text)' ],
245 [ 'addPgIndex', 'image', 'img_sha1', '(img_sha1)' ],
246 [ 'addPgIndex', 'ipblocks', 'ipb_parent_block_id', '(ipb_parent_block_id)' ],
247 [ 'addPgIndex', 'oldimage', 'oi_sha1', '(oi_sha1)' ],
248 [ 'addPgIndex', 'page', 'page_mediawiki_title', '(page_title) WHERE page_namespace = 8' ],
249 [ 'addPgIndex', 'pagelinks', 'pagelinks_title', '(pl_title)' ],
250 [ 'addPgIndex', 'page_props', 'pp_propname_page', '(pp_propname, pp_page)' ],
251 [ 'addPgIndex', 'revision', 'rev_text_id_idx', '(rev_text_id)' ],
252 [ 'addPgIndex', 'recentchanges', 'rc_timestamp_bot', '(rc_timestamp) WHERE rc_bot = 0' ],
253 [ 'addPgIndex', 'templatelinks', 'templatelinks_from', '(tl_from)' ],
254 [ 'addPgIndex', 'watchlist', 'wl_user', '(wl_user)' ],
255 [ 'addPgIndex', 'watchlist', 'wl_user_notificationtimestamp',
256 '(wl_user, wl_notificationtimestamp)' ],
257 [ 'addPgIndex', 'logging', 'logging_user_type_time',
258 '(log_user, log_type, log_timestamp)' ],
259 [ 'addPgIndex', 'logging', 'logging_page_id_time', '(log_page,log_timestamp)' ],
260 [ 'addPgIndex', 'iwlinks', 'iwl_prefix_from_title', '(iwl_prefix, iwl_from, iwl_title)' ],
261 [ 'addPgIndex', 'iwlinks', 'iwl_prefix_title_from', '(iwl_prefix, iwl_title, iwl_from)' ],
262 [ 'addPgIndex', 'job', 'job_timestamp_idx', '(job_timestamp)' ],
263 [ 'addPgIndex', 'job', 'job_sha1', '(job_sha1)' ],
264 [ 'addPgIndex', 'job', 'job_cmd_token', '(job_cmd, job_token, job_random)' ],
265 [ 'addPgIndex', 'job', 'job_cmd_token_id', '(job_cmd, job_token, job_id)' ],
266 [ 'addPgIndex', 'filearchive', 'fa_sha1', '(fa_sha1)' ],
267 [ 'addPgIndex', 'logging', 'logging_user_text_type_time',
268 '(log_user_text, log_type, log_timestamp)' ],
269 [ 'addPgIndex', 'logging', 'logging_user_text_time', '(log_user_text, log_timestamp)' ],
271 [ 'checkIndex', 'pagelink_unique', [
272 [ 'pl_from', 'int4_ops', 'btree', 0 ],
273 [ 'pl_namespace', 'int2_ops', 'btree', 0 ],
274 [ 'pl_title', 'text_ops', 'btree', 0 ],
276 'CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)' ],
277 [ 'checkIndex', 'cl_sortkey', [
278 [ 'cl_to', 'text_ops', 'btree', 0 ],
279 [ 'cl_sortkey', 'text_ops', 'btree', 0 ],
280 [ 'cl_from', 'int4_ops', 'btree', 0 ],
282 'CREATE INDEX cl_sortkey ON "categorylinks" ' .
283 'USING "btree" ("cl_to", "cl_sortkey", "cl_from")' ],
284 [ 'checkIndex', 'iwl_prefix_title_from', [
285 [ 'iwl_prefix', 'text_ops', 'btree', 0 ],
286 [ 'iwl_title', 'text_ops', 'btree', 0 ],
287 [ 'iwl_from', 'int4_ops', 'btree', 0 ],
289 'CREATE INDEX iwl_prefix_title_from ON "iwlinks" ' .
290 'USING "btree" ("iwl_prefix", "iwl_title", "iwl_from")' ],
291 [ 'checkIndex', 'logging_times', [
292 [ 'log_timestamp', 'timestamptz_ops', 'btree', 0 ],
294 'CREATE INDEX "logging_times" ON "logging" USING "btree" ("log_timestamp")' ],
295 [ 'dropIndex', 'oldimage', 'oi_name' ],
296 [ 'checkIndex', 'oi_name_archive_name', [
297 [ 'oi_name', 'text_ops', 'btree', 0 ],
298 [ 'oi_archive_name', 'text_ops', 'btree', 0 ],
300 'CREATE INDEX "oi_name_archive_name" ON "oldimage" ' .
301 'USING "btree" ("oi_name", "oi_archive_name")' ],
302 [ 'checkIndex', 'oi_name_timestamp', [
303 [ 'oi_name', 'text_ops', 'btree', 0 ],
304 [ 'oi_timestamp', 'timestamptz_ops', 'btree', 0 ],
306 'CREATE INDEX "oi_name_timestamp" ON "oldimage" ' .
307 'USING "btree" ("oi_name", "oi_timestamp")' ],
308 [ 'checkIndex', 'page_main_title', [
309 [ 'page_title', 'text_pattern_ops', 'btree', 0 ],
311 'CREATE INDEX "page_main_title" ON "page" ' .
312 'USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 0)' ],
313 [ 'checkIndex', 'page_mediawiki_title', [
314 [ 'page_title', 'text_pattern_ops', 'btree', 0 ],
316 'CREATE INDEX "page_mediawiki_title" ON "page" ' .
317 'USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 8)' ],
318 [ 'checkIndex', 'page_project_title', [
319 [ 'page_title', 'text_pattern_ops', 'btree', 0 ],
321 'CREATE INDEX "page_project_title" ON "page" ' .
322 'USING "btree" ("page_title" "text_pattern_ops") ' .
323 'WHERE ("page_namespace" = 4)' ],
324 [ 'checkIndex', 'page_talk_title', [
325 [ 'page_title', 'text_pattern_ops', 'btree', 0 ],
327 'CREATE INDEX "page_talk_title" ON "page" ' .
328 'USING "btree" ("page_title" "text_pattern_ops") ' .
329 'WHERE ("page_namespace" = 1)' ],
330 [ 'checkIndex', 'page_user_title', [
331 [ 'page_title', 'text_pattern_ops', 'btree', 0 ],
333 'CREATE INDEX "page_user_title" ON "page" ' .
334 'USING "btree" ("page_title" "text_pattern_ops") WHERE ' .
335 '("page_namespace" = 2)' ],
336 [ 'checkIndex', 'page_utalk_title', [
337 [ 'page_title', 'text_pattern_ops', 'btree', 0 ],
339 'CREATE INDEX "page_utalk_title" ON "page" ' .
340 'USING "btree" ("page_title" "text_pattern_ops") ' .
341 'WHERE ("page_namespace" = 3)' ],
342 [ 'checkIndex', 'ts2_page_text', [
343 [ 'textvector', 'tsvector_ops', 'gist', 0 ],
345 'CREATE INDEX "ts2_page_text" ON "pagecontent" USING "gist" ("textvector")' ],
346 [ 'checkIndex', 'ts2_page_title', [
347 [ 'titlevector', 'tsvector_ops', 'gist', 0 ],
349 'CREATE INDEX "ts2_page_title" ON "page" USING "gist" ("titlevector")' ],
351 [ 'checkOiNameConstraint' ],
352 [ 'checkPageDeletedTrigger' ],
353 [ 'checkRevUserFkey' ],
354 [ 'dropIndex', 'ipblocks', 'ipb_address' ],
355 [ 'checkIndex', 'ipb_address_unique', [
356 [ 'ipb_address', 'text_ops', 'btree', 0 ],
357 [ 'ipb_user', 'int4_ops', 'btree', 0 ],
358 [ 'ipb_auto', 'int2_ops', 'btree', 0 ],
359 [ 'ipb_anon_only', 'int2_ops', 'btree', 0 ],
361 'CREATE UNIQUE INDEX ipb_address_unique ' .
362 'ON ipblocks (ipb_address,ipb_user,ipb_auto,ipb_anon_only)' ],
364 [ 'checkIwlPrefix' ],
366 # All FK columns should be deferred
367 [ 'changeFkeyDeferrable', 'archive', 'ar_user', 'mwuser(user_id) ON DELETE SET NULL' ],
368 [ 'changeFkeyDeferrable', 'categorylinks', 'cl_from', 'page(page_id) ON DELETE CASCADE' ],
369 [ 'changeFkeyDeferrable', 'externallinks', 'el_from', 'page(page_id) ON DELETE CASCADE' ],
370 [ 'changeFkeyDeferrable', 'filearchive', 'fa_deleted_user',
371 'mwuser(user_id) ON DELETE SET NULL' ],
372 [ 'changeFkeyDeferrable', 'filearchive', 'fa_user', 'mwuser(user_id) ON DELETE SET NULL' ],
373 [ 'changeFkeyDeferrable', 'image', 'img_user', 'mwuser(user_id) ON DELETE SET NULL' ],
374 [ 'changeFkeyDeferrable', 'imagelinks', 'il_from', 'page(page_id) ON DELETE CASCADE' ],
375 [ 'changeFkeyDeferrable', 'ipblocks', 'ipb_by', 'mwuser(user_id) ON DELETE CASCADE' ],
376 [ 'changeFkeyDeferrable', 'ipblocks', 'ipb_user', 'mwuser(user_id) ON DELETE SET NULL' ],
377 [ 'changeFkeyDeferrable', 'ipblocks', 'ipb_parent_block_id',
378 'ipblocks(ipb_id) ON DELETE SET NULL' ],
379 [ 'changeFkeyDeferrable', 'langlinks', 'll_from', 'page(page_id) ON DELETE CASCADE' ],
380 [ 'changeFkeyDeferrable', 'logging', 'log_user', 'mwuser(user_id) ON DELETE SET NULL' ],
381 [ 'changeFkeyDeferrable', 'oldimage', 'oi_name',
382 'image(img_name) ON DELETE CASCADE ON UPDATE CASCADE' ],
383 [ 'changeFkeyDeferrable', 'oldimage', 'oi_user', 'mwuser(user_id) ON DELETE SET NULL' ],
384 [ 'changeFkeyDeferrable', 'pagelinks', 'pl_from', 'page(page_id) ON DELETE CASCADE' ],
385 [ 'changeFkeyDeferrable', 'page_props', 'pp_page', 'page (page_id) ON DELETE CASCADE' ],
386 [ 'changeFkeyDeferrable', 'page_restrictions', 'pr_page',
387 'page(page_id) ON DELETE CASCADE' ],
388 [ 'changeFkeyDeferrable', 'protected_titles', 'pt_user',
389 'mwuser(user_id) ON DELETE SET NULL' ],
390 [ 'changeFkeyDeferrable', 'recentchanges', 'rc_user',
391 'mwuser(user_id) ON DELETE SET NULL' ],
392 [ 'changeFkeyDeferrable', 'redirect', 'rd_from', 'page(page_id) ON DELETE CASCADE' ],
393 [ 'changeFkeyDeferrable', 'revision', 'rev_page', 'page (page_id) ON DELETE CASCADE' ],
394 [ 'changeFkeyDeferrable', 'revision', 'rev_user', 'mwuser(user_id) ON DELETE RESTRICT' ],
395 [ 'changeFkeyDeferrable', 'templatelinks', 'tl_from', 'page(page_id) ON DELETE CASCADE' ],
396 [ 'changeFkeyDeferrable', 'user_groups', 'ug_user', 'mwuser(user_id) ON DELETE CASCADE' ],
397 [ 'changeFkeyDeferrable', 'user_newtalk', 'user_id', 'mwuser(user_id) ON DELETE CASCADE' ],
398 [ 'changeFkeyDeferrable', 'user_properties', 'up_user',
399 'mwuser(user_id) ON DELETE CASCADE' ],
400 [ 'changeFkeyDeferrable', 'watchlist', 'wl_user', 'mwuser(user_id) ON DELETE CASCADE' ],
402 # r81574
403 [ 'addInterwikiType' ],
404 # end
405 [ 'tsearchFixes' ],
407 // 1.23
408 [ 'addPgField', 'recentchanges', 'rc_source', "TEXT NOT NULL DEFAULT ''" ],
409 [ 'addPgField', 'page', 'page_links_updated', "TIMESTAMPTZ NULL" ],
410 [ 'addPgField', 'mwuser', 'user_password_expires', 'TIMESTAMPTZ NULL' ],
411 [ 'changeFieldPurgeTable', 'l10n_cache', 'lc_value', 'bytea',
412 "replace(lc_value,'\','\\\\')::bytea" ],
413 // 1.23.9
414 [ 'rebuildTextSearch' ],
416 // 1.24
417 [ 'addPgField', 'page_props', 'pp_sortkey', 'float NULL' ],
418 [ 'addPgIndex', 'page_props', 'pp_propname_sortkey_page',
419 '( pp_propname, pp_sortkey, pp_page ) WHERE ( pp_sortkey IS NOT NULL )' ],
420 [ 'addPgField', 'page', 'page_lang', 'TEXT default NULL' ],
421 [ 'addPgField', 'pagelinks', 'pl_from_namespace', 'INTEGER NOT NULL DEFAULT 0' ],
422 [ 'addPgField', 'templatelinks', 'tl_from_namespace', 'INTEGER NOT NULL DEFAULT 0' ],
423 [ 'addPgField', 'imagelinks', 'il_from_namespace', 'INTEGER NOT NULL DEFAULT 0' ],
425 // 1.25
426 [ 'dropTable', 'hitcounter' ],
427 [ 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ],
428 [ 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ],
429 [ 'dropFkey', 'recentchanges', 'rc_cur_id' ],
431 // 1.27
432 [ 'dropTable', 'msg_resource_links' ],
433 [ 'dropTable', 'msg_resource' ],
435 'addPgField', 'watchlist', 'wl_id',
436 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('watchlist_wl_id_seq')"
439 // 1.28
440 [ 'addPgIndex', 'recentchanges', 'rc_name_type_patrolled_timestamp',
441 '( rc_namespace, rc_type, rc_patrolled, rc_timestamp )' ],
442 [ 'addPgField', 'change_tag', 'ct_id',
443 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('change_tag_ct_id_seq')" ],
444 [ 'addPgField', 'tag_summary', 'ts_id',
445 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('tag_summary_ts_id_seq')" ],
449 protected function getOldGlobalUpdates() {
450 global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
452 $updates = [];
454 # Add missing extension tables
455 foreach ( $wgExtNewTables as $tableRecord ) {
456 $updates[] = [
457 'addTable', $tableRecord[0], $tableRecord[1], true
461 # Add missing extension fields
462 foreach ( $wgExtPGNewFields as $fieldRecord ) {
463 $updates[] = [
464 'addPgField', $fieldRecord[0], $fieldRecord[1],
465 $fieldRecord[2]
469 # Change altered columns
470 foreach ( $wgExtPGAlteredFields as $fieldRecord ) {
471 $updates[] = [
472 'changeField', $fieldRecord[0], $fieldRecord[1],
473 $fieldRecord[2]
477 # Add missing extension indexes
478 foreach ( $wgExtNewIndexes as $fieldRecord ) {
479 $updates[] = [
480 'addPgExtIndex', $fieldRecord[0], $fieldRecord[1],
481 $fieldRecord[2]
485 return $updates;
488 protected function describeTable( $table ) {
489 $q = <<<END
490 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
491 WHERE pg_class.relnamespace = pg_namespace.oid
492 AND attrelid=pg_class.oid AND attnum > 0
493 AND relname=%s AND nspname=%s
494 END;
495 $res = $this->db->query( sprintf( $q,
496 $this->db->addQuotes( $table ),
497 $this->db->addQuotes( $this->db->getCoreSchema() ) ) );
498 if ( !$res ) {
499 return null;
502 $cols = [];
503 foreach ( $res as $r ) {
504 $cols[] = [
505 "name" => $r[0],
506 "ord" => $r[1],
510 return $cols;
513 function describeIndex( $idx ) {
514 // first fetch the key (which is a list of columns ords) and
515 // the table the index applies to (an oid)
516 $q = <<<END
517 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
518 WHERE nspname=%s
519 AND pg_class.relnamespace = pg_namespace.oid
520 AND relname=%s
521 AND indexrelid=pg_class.oid
522 END;
523 $res = $this->db->query(
524 sprintf(
526 $this->db->addQuotes( $this->db->getCoreSchema() ),
527 $this->db->addQuotes( $idx )
530 if ( !$res ) {
531 return null;
533 $r = $this->db->fetchRow( $res );
534 if ( !$r ) {
535 return null;
538 $indkey = $r[0];
539 $relid = intval( $r[1] );
540 $indkeys = explode( ' ', $indkey );
542 $colnames = [];
543 foreach ( $indkeys as $rid ) {
544 $query = <<<END
545 SELECT attname FROM pg_class, pg_attribute
546 WHERE attrelid=$relid
547 AND attnum=%d
548 AND attrelid=pg_class.oid
549 END;
550 $r2 = $this->db->query( sprintf( $query, $rid ) );
551 if ( !$r2 ) {
552 return null;
554 $row2 = $this->db->fetchRow( $r2 );
555 if ( !$row2 ) {
556 return null;
558 $colnames[] = $row2[0];
561 return $colnames;
564 function fkeyDeltype( $fkey ) {
565 $q = <<<END
566 SELECT confdeltype FROM pg_constraint, pg_namespace
567 WHERE connamespace=pg_namespace.oid
568 AND nspname=%s
569 AND conname=%s;
570 END;
571 $r = $this->db->query(
572 sprintf(
574 $this->db->addQuotes( $this->db->getCoreSchema() ),
575 $this->db->addQuotes( $fkey )
578 $row = $this->db->fetchRow( $r );
579 if ( !$row ) {
580 return null;
583 return $row[0];
586 function ruleDef( $table, $rule ) {
587 $q = <<<END
588 SELECT definition FROM pg_rules
589 WHERE schemaname = %s
590 AND tablename = %s
591 AND rulename = %s
592 END;
593 $r = $this->db->query(
594 sprintf(
596 $this->db->addQuotes( $this->db->getCoreSchema() ),
597 $this->db->addQuotes( $table ),
598 $this->db->addQuotes( $rule )
601 $row = $this->db->fetchRow( $r );
602 if ( !$row ) {
603 return null;
605 $d = $row[0];
607 return $d;
610 protected function addSequence( $table, $pkey, $ns ) {
611 if ( !$this->db->sequenceExists( $ns ) ) {
612 $this->output( "Creating sequence $ns\n" );
613 $this->db->query( "CREATE SEQUENCE $ns" );
614 if ( $pkey !== false ) {
615 $this->setDefault( $table, $pkey, '"nextval"(\'"' . $ns . '"\'::"regclass")' );
620 protected function renameSequence( $old, $new ) {
621 if ( $this->db->sequenceExists( $new ) ) {
622 $this->output( "...sequence $new already exists.\n" );
624 return;
626 if ( $this->db->sequenceExists( $old ) ) {
627 $this->output( "Renaming sequence $old to $new\n" );
628 $this->db->query( "ALTER SEQUENCE $old RENAME TO $new" );
632 protected function renameTable( $old, $new, $patch = false ) {
633 if ( $this->db->tableExists( $old ) ) {
634 $this->output( "Renaming table $old to $new\n" );
635 $old = $this->db->realTableName( $old, "quoted" );
636 $new = $this->db->realTableName( $new, "quoted" );
637 $this->db->query( "ALTER TABLE $old RENAME TO $new" );
638 if ( $patch !== false ) {
639 $this->applyPatch( $patch );
644 protected function renameIndex(
645 $table, $old, $new, $skipBothIndexExistWarning = false, $a = false, $b = false
647 // First requirement: the table must exist
648 if ( !$this->db->tableExists( $table, __METHOD__ ) ) {
649 $this->output( "...skipping: '$table' table doesn't exist yet.\n" );
651 return;
654 // Second requirement: the new index must be missing
655 if ( $this->db->indexExists( $table, $new, __METHOD__ ) ) {
656 $this->output( "...index $new already set on $table table.\n" );
657 if ( !$skipBothIndexExistWarning
658 && $this->db->indexExists( $table, $old, __METHOD__ )
660 $this->output( "...WARNING: $old still exists, despite it has been " .
661 "renamed into $new (which also exists).\n" .
662 " $old should be manually removed if not needed anymore.\n" );
665 return;
668 // Third requirement: the old index must exist
669 if ( !$this->db->indexExists( $table, $old, __METHOD__ ) ) {
670 $this->output( "...skipping: index $old doesn't exist.\n" );
672 return;
675 $this->db->query( "ALTER INDEX $old RENAME TO $new" );
678 protected function addPgField( $table, $field, $type ) {
679 $fi = $this->db->fieldInfo( $table, $field );
680 if ( !is_null( $fi ) ) {
681 $this->output( "...column '$table.$field' already exists\n" );
683 return;
684 } else {
685 $this->output( "Adding column '$table.$field'\n" );
686 $this->db->query( "ALTER TABLE $table ADD $field $type" );
690 protected function changeField( $table, $field, $newtype, $default ) {
691 $fi = $this->db->fieldInfo( $table, $field );
692 if ( is_null( $fi ) ) {
693 $this->output( "...ERROR: expected column $table.$field to exist\n" );
694 exit( 1 );
697 if ( $fi->type() === $newtype ) {
698 $this->output( "...column '$table.$field' is already of type '$newtype'\n" );
699 } else {
700 $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" );
701 $sql = "ALTER TABLE $table ALTER $field TYPE $newtype";
702 if ( strlen( $default ) ) {
703 $res = [];
704 if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) {
705 $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]";
706 $this->db->query( $sqldef );
707 $default = preg_replace( '/\s*DEFAULT .+/', '', $default );
709 $sql .= " USING $default";
711 $this->db->query( $sql );
715 protected function changeFieldPurgeTable( $table, $field, $newtype, $default ) {
716 # # For a cache table, empty it if the field needs to be changed, because the old contents
717 # # may be corrupted. If the column is already the desired type, refrain from purging.
718 $fi = $this->db->fieldInfo( $table, $field );
719 if ( is_null( $fi ) ) {
720 $this->output( "...ERROR: expected column $table.$field to exist\n" );
721 exit( 1 );
724 if ( $fi->type() === $newtype ) {
725 $this->output( "...column '$table.$field' is already of type '$newtype'\n" );
726 } else {
727 $this->output( "Purging data from cache table '$table'\n" );
728 $this->db->query( "DELETE from $table" );
729 $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" );
730 $sql = "ALTER TABLE $table ALTER $field TYPE $newtype";
731 if ( strlen( $default ) ) {
732 $res = [];
733 if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) {
734 $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]";
735 $this->db->query( $sqldef );
736 $default = preg_replace( '/\s*DEFAULT .+/', '', $default );
738 $sql .= " USING $default";
740 $this->db->query( $sql );
744 protected function setDefault( $table, $field, $default ) {
746 $info = $this->db->fieldInfo( $table, $field );
747 if ( $info->defaultValue() !== $default ) {
748 $this->output( "Changing '$table.$field' default value\n" );
749 $this->db->query( "ALTER TABLE $table ALTER $field SET DEFAULT " . $default );
753 protected function changeNullableField( $table, $field, $null ) {
754 $fi = $this->db->fieldInfo( $table, $field );
755 if ( is_null( $fi ) ) {
756 $this->output( "...ERROR: expected column $table.$field to exist\n" );
757 exit( 1 );
759 if ( $fi->isNullable() ) {
760 # # It's NULL - does it need to be NOT NULL?
761 if ( 'NOT NULL' === $null ) {
762 $this->output( "Changing '$table.$field' to not allow NULLs\n" );
763 $this->db->query( "ALTER TABLE $table ALTER $field SET NOT NULL" );
764 } else {
765 $this->output( "...column '$table.$field' is already set as NULL\n" );
767 } else {
768 # # It's NOT NULL - does it need to be NULL?
769 if ( 'NULL' === $null ) {
770 $this->output( "Changing '$table.$field' to allow NULLs\n" );
771 $this->db->query( "ALTER TABLE $table ALTER $field DROP NOT NULL" );
772 } else {
773 $this->output( "...column '$table.$field' is already set as NOT NULL\n" );
778 public function addPgIndex( $table, $index, $type ) {
779 if ( $this->db->indexExists( $table, $index ) ) {
780 $this->output( "...index '$index' on table '$table' already exists\n" );
781 } else {
782 $this->output( "Creating index '$index' on table '$table' $type\n" );
783 $this->db->query( "CREATE INDEX $index ON $table $type" );
787 public function addPgExtIndex( $table, $index, $type ) {
788 if ( $this->db->indexExists( $table, $index ) ) {
789 $this->output( "...index '$index' on table '$table' already exists\n" );
790 } else {
791 if ( preg_match( '/^\(/', $type ) ) {
792 $this->output( "Creating index '$index' on table '$table'\n" );
793 $this->db->query( "CREATE INDEX $index ON $table $type" );
794 } else {
795 $this->applyPatch( $type, true, "Creating index '$index' on table '$table'" );
800 protected function dropFkey( $table, $field ) {
801 $fi = $this->db->fieldInfo( $table, $field );
802 if ( is_null( $fi ) ) {
803 $this->output( "WARNING! Column '$table.$field' does not exist but it should! " .
804 "Please report this.\n" );
805 return;
807 $conname = $fi->conname();
808 if ( $fi->conname() ) {
809 $this->output( "Dropping foreign key constraint on '$table.$field'\n" );
810 $conclause = "CONSTRAINT \"$conname\"";
811 $command = "ALTER TABLE $table DROP CONSTRAINT $conname";
812 $this->db->query( $command );
813 } else {
814 $this->output( "...foreign key constraint on '$table.$field' already does not exist\n" );
818 protected function changeFkeyDeferrable( $table, $field, $clause ) {
819 $fi = $this->db->fieldInfo( $table, $field );
820 if ( is_null( $fi ) ) {
821 $this->output( "WARNING! Column '$table.$field' does not exist but it should! " .
822 "Please report this.\n" );
824 return;
826 if ( $fi->is_deferred() && $fi->is_deferrable() ) {
827 return;
829 $this->output( "Altering column '$table.$field' to be DEFERRABLE INITIALLY DEFERRED\n" );
830 $conname = $fi->conname();
831 if ( $fi->conname() ) {
832 $conclause = "CONSTRAINT \"$conname\"";
833 $command = "ALTER TABLE $table DROP CONSTRAINT $conname";
834 $this->db->query( $command );
835 } else {
836 $this->output( "Column '$table.$field' does not have a foreign key " .
837 "constraint, will be added\n" );
838 $conclause = "";
840 $command =
841 "ALTER TABLE $table ADD $conclause " .
842 "FOREIGN KEY ($field) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
843 $this->db->query( $command );
846 protected function convertArchive2() {
847 if ( $this->db->tableExists( "archive2" ) ) {
848 if ( $this->db->ruleExists( 'archive', 'archive_insert' ) ) {
849 $this->output( "Dropping rule 'archive_insert'\n" );
850 $this->db->query( 'DROP RULE archive_insert ON archive' );
852 if ( $this->db->ruleExists( 'archive', 'archive_delete' ) ) {
853 $this->output( "Dropping rule 'archive_delete'\n" );
854 $this->db->query( 'DROP RULE archive_delete ON archive' );
856 $this->applyPatch(
857 'patch-remove-archive2.sql',
858 false,
859 "Converting 'archive2' back to normal archive table"
861 } else {
862 $this->output( "...obsolete table 'archive2' does not exist\n" );
866 protected function checkOiDeleted() {
867 if ( $this->db->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) {
868 $this->output( "Changing 'oldimage.oi_deleted' to type 'smallint'\n" );
869 $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
870 $this->db->query(
871 "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
872 $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
873 } else {
874 $this->output( "...column 'oldimage.oi_deleted' is already of type 'smallint'\n" );
878 protected function checkOiNameConstraint() {
879 if ( $this->db->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
880 $this->output( "...table 'oldimage' has correct cascading delete/update " .
881 "foreign key to image\n" );
882 } else {
883 if ( $this->db->hasConstraint( "oldimage_oi_name_fkey" ) ) {
884 $this->db->query(
885 "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
887 if ( $this->db->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
888 $this->db->query(
889 "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
891 $this->output( "Making foreign key on table 'oldimage' (to image) a cascade delete/update\n" );
892 $this->db->query(
893 "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
894 "FOREIGN KEY (oi_name) REFERENCES image(img_name) " .
895 "ON DELETE CASCADE ON UPDATE CASCADE" );
899 protected function checkPageDeletedTrigger() {
900 if ( !$this->db->triggerExists( 'page', 'page_deleted' ) ) {
901 $this->applyPatch(
902 'patch-page_deleted.sql',
903 false,
904 "Adding function and trigger 'page_deleted' to table 'page'"
906 } else {
907 $this->output( "...table 'page' has 'page_deleted' trigger\n" );
911 protected function dropIndex( $table, $index, $patch = '', $fullpath = false ) {
912 if ( $this->db->indexExists( $table, $index ) ) {
913 $this->output( "Dropping obsolete index '$index'\n" );
914 $this->db->query( "DROP INDEX \"" . $index . "\"" );
918 protected function checkIndex( $index, $should_be, $good_def ) {
919 $pu = $this->db->indexAttributes( $index );
920 if ( !empty( $pu ) && $pu != $should_be ) {
921 $this->output( "Dropping obsolete version of index '$index'\n" );
922 $this->db->query( "DROP INDEX \"" . $index . "\"" );
923 $pu = [];
924 } else {
925 $this->output( "...no need to drop index '$index'\n" );
928 if ( empty( $pu ) ) {
929 $this->output( "Creating index '$index'\n" );
930 $this->db->query( $good_def );
931 } else {
932 $this->output( "...index '$index' exists\n" );
936 protected function checkRevUserFkey() {
937 if ( $this->fkeyDeltype( 'revision_rev_user_fkey' ) == 'r' ) {
938 $this->output( "...constraint 'revision_rev_user_fkey' is ON DELETE RESTRICT\n" );
939 } else {
940 $this->applyPatch(
941 'patch-revision_rev_user_fkey.sql',
942 false,
943 "Changing constraint 'revision_rev_user_fkey' to ON DELETE RESTRICT"
948 protected function checkIwlPrefix() {
949 if ( $this->db->indexExists( 'iwlinks', 'iwl_prefix' ) ) {
950 $this->applyPatch(
951 'patch-rename-iwl_prefix.sql',
952 false,
953 "Replacing index 'iwl_prefix' with 'iwl_prefix_title_from'"
958 protected function addInterwikiType() {
959 $this->applyPatch( 'patch-add_interwiki.sql', false, "Refreshing add_interwiki()" );
962 protected function tsearchFixes() {
963 # Tweak the page_title tsearch2 trigger to filter out slashes
964 # This is create or replace, so harmless to call if not needed
965 $this->applyPatch( 'patch-ts2pagetitle.sql', false, "Refreshing ts2_page_title()" );
967 # If the server is 8.3 or higher, rewrite the tsearch2 triggers
968 # in case they have the old 'default' versions
969 # Gather version numbers in case we need them
970 if ( $this->db->getServerVersion() >= 8.3 ) {
971 $this->applyPatch( 'patch-tsearch2funcs.sql', false, "Rewriting tsearch2 triggers" );
975 protected function rebuildTextSearch() {
976 if ( $this->updateRowExists( 'patch-textsearch_bug66650.sql' ) ) {
977 $this->output( "...bug 66650 already fixed or not applicable.\n" );
978 return;
980 $this->applyPatch( 'patch-textsearch_bug66650.sql', false,
981 'Rebuilding text search for bug 66650' );