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[lhc/web/wiklou.git] / includes / installer / PostgresUpdater.php
1 <?php
2 /**
3 * PostgreSQL-specific updater.
4 *
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.
9 *
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.
14 *
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
19 *
20 * @file
21 * @ingroup Deployment
22 */
23
24 use Wikimedia\Rdbms\DatabasePostgres;
25
26 /**
27 * Class for handling updates to Postgres databases.
28 *
29 * @ingroup Deployment
30 * @since 1.17
31 */
32 class PostgresUpdater extends DatabaseUpdater {
33
34 /**
35 * @var DatabasePostgres
36 */
37 protected $db;
38
39 /**
40 * @todo FIXME: Postgres should use sequential updates like Mysql, Sqlite
41 * and everybody else. It never got refactored like it should've.
42 * @return array
43 */
44 protected function getCoreUpdateList() {
45 return [
46 # rename tables 1.7.3
47 # r15791 Change reserved word table names "user" and "text"
48 [ 'renameTable', 'user', 'mwuser' ],
49 [ 'renameTable', 'text', 'pagecontent' ],
50 [ 'renameIndex', 'mwuser', 'user_pkey', 'mwuser_pkey' ],
51 [ 'renameIndex', 'mwuser', 'user_user_name_key', 'mwuser_user_name_key' ],
52 [ 'renameIndex', 'pagecontent', 'text_pkey', 'pagecontent_pkey' ],
53
54 # renamed sequences
55 [ 'renameSequence', 'ipblocks_ipb_id_val', 'ipblocks_ipb_id_seq' ],
56 [ 'renameSequence', 'rev_rev_id_val', 'revision_rev_id_seq' ],
57 [ 'renameSequence', 'text_old_id_val', 'text_old_id_seq' ],
58 [ 'renameSequence', 'rc_rc_id_seq', 'recentchanges_rc_id_seq' ],
59 [ 'renameSequence', 'log_log_id_seq', 'logging_log_id_seq' ],
60 [ 'renameSequence', 'pr_id_val', 'page_restrictions_pr_id_seq' ],
61 [ 'renameSequence', 'us_id_seq', 'uploadstash_us_id_seq' ],
62
63 # since r58263
64 [ 'renameSequence', 'category_id_seq', 'category_cat_id_seq' ],
65
66 # new sequences if not renamed above
67 [ 'addSequence', 'logging', false, 'logging_log_id_seq' ],
68 [ 'addSequence', 'page_restrictions', false, 'page_restrictions_pr_id_seq' ],
69 [ 'addSequence', 'filearchive', 'fa_id', 'filearchive_fa_id_seq' ],
70 [ 'addSequence', 'archive', false, 'archive_ar_id_seq' ],
71 [ 'addSequence', 'externallinks', false, 'externallinks_el_id_seq' ],
72 [ 'addSequence', 'watchlist', false, 'watchlist_wl_id_seq' ],
73 [ 'addSequence', 'change_tag', false, 'change_tag_ct_id_seq' ],
74 [ 'addSequence', 'tag_summary', false, 'tag_summary_ts_id_seq' ],
75
76 # new tables
77 [ 'addTable', 'category', 'patch-category.sql' ],
78 [ 'addTable', 'page', 'patch-page.sql' ],
79 [ 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ],
80 [ 'addTable', 'page_props', 'patch-page_props.sql' ],
81 [ 'addTable', 'page_restrictions', 'patch-page_restrictions.sql' ],
82 [ 'addTable', 'profiling', 'patch-profiling.sql' ],
83 [ 'addTable', 'protected_titles', 'patch-protected_titles.sql' ],
84 [ 'addTable', 'redirect', 'patch-redirect.sql' ],
85 [ 'addTable', 'updatelog', 'patch-updatelog.sql' ],
86 [ 'addTable', 'change_tag', 'patch-change_tag.sql' ],
87 [ 'addTable', 'tag_summary', 'patch-tag_summary.sql' ],
88 [ 'addTable', 'valid_tag', 'patch-valid_tag.sql' ],
89 [ 'addTable', 'user_properties', 'patch-user_properties.sql' ],
90 [ 'addTable', 'log_search', 'patch-log_search.sql' ],
91 [ 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ],
92 [ 'addTable', 'iwlinks', 'patch-iwlinks.sql' ],
93 [ 'addTable', 'module_deps', 'patch-module_deps.sql' ],
94 [ 'addTable', 'uploadstash', 'patch-uploadstash.sql' ],
95 [ 'addTable', 'user_former_groups', 'patch-user_former_groups.sql' ],
96 [ 'addTable', 'sites', 'patch-sites.sql' ],
97 [ 'addTable', 'bot_passwords', 'patch-bot_passwords.sql' ],
98
99 # Needed before new field
100 [ 'convertArchive2' ],
101
102 # new fields
103 [ 'addPgField', 'updatelog', 'ul_value', 'TEXT' ],
104 [ 'addPgField', 'archive', 'ar_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
105 [ 'addPgField', 'archive', 'ar_len', 'INTEGER' ],
106 [ 'addPgField', 'archive', 'ar_page_id', 'INTEGER' ],
107 [ 'addPgField', 'archive', 'ar_parent_id', 'INTEGER' ],
108 [ 'addPgField', 'archive', 'ar_content_model', 'TEXT' ],
109 [ 'addPgField', 'archive', 'ar_content_format', 'TEXT' ],
110 [ 'addPgField', 'categorylinks', 'cl_sortkey_prefix', "TEXT NOT NULL DEFAULT ''" ],
111 [ 'addPgField', 'categorylinks', 'cl_collation', "TEXT NOT NULL DEFAULT 0" ],
112 [ 'addPgField', 'categorylinks', 'cl_type', "TEXT NOT NULL DEFAULT 'page'" ],
113 [ 'addPgField', 'image', 'img_sha1', "TEXT NOT NULL DEFAULT ''" ],
114 [ 'addPgField', 'ipblocks', 'ipb_allow_usertalk', 'SMALLINT NOT NULL DEFAULT 0' ],
115 [ 'addPgField', 'ipblocks', 'ipb_anon_only', 'SMALLINT NOT NULL DEFAULT 0' ],
116 [ 'addPgField', 'ipblocks', 'ipb_by_text', "TEXT NOT NULL DEFAULT ''" ],
117 [ 'addPgField', 'ipblocks', 'ipb_block_email', 'SMALLINT NOT NULL DEFAULT 0' ],
118 [ 'addPgField', 'ipblocks', 'ipb_create_account', 'SMALLINT NOT NULL DEFAULT 1' ],
119 [ 'addPgField', 'ipblocks', 'ipb_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
120 [ 'addPgField', 'ipblocks', 'ipb_enable_autoblock', 'SMALLINT NOT NULL DEFAULT 1' ],
121 [ 'addPgField', 'ipblocks', 'ipb_parent_block_id',
122 'INTEGER DEFAULT NULL REFERENCES ipblocks(ipb_id) ' .
123 'ON DELETE SET NULL DEFERRABLE INITIALLY DEFERRED' ],
124 [ 'addPgField', 'filearchive', 'fa_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
125 [ 'addPgField', 'filearchive', 'fa_sha1', "TEXT NOT NULL DEFAULT ''" ],
126 [ 'addPgField', 'logging', 'log_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
127 [ 'addPgField', 'logging', 'log_id',
128 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ],
129 [ 'addPgField', 'logging', 'log_params', 'TEXT' ],
130 [ 'addPgField', 'mwuser', 'user_editcount', 'INTEGER' ],
131 [ 'addPgField', 'mwuser', 'user_newpass_time', 'TIMESTAMPTZ' ],
132 [ 'addPgField', 'oldimage', 'oi_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
133 [ 'addPgField', 'oldimage', 'oi_major_mime', "TEXT NOT NULL DEFAULT 'unknown'" ],
134 [ 'addPgField', 'oldimage', 'oi_media_type', 'TEXT' ],
135 [ 'addPgField', 'oldimage', 'oi_metadata', "BYTEA NOT NULL DEFAULT ''" ],
136 [ 'addPgField', 'oldimage', 'oi_minor_mime', "TEXT NOT NULL DEFAULT 'unknown'" ],
137 [ 'addPgField', 'oldimage', 'oi_sha1', "TEXT NOT NULL DEFAULT ''" ],
138 [ 'addPgField', 'page', 'page_content_model', 'TEXT' ],
139 [ 'addPgField', 'page_restrictions', 'pr_id',
140 "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_seq')" ],
141 [ 'addPgField', 'profiling', 'pf_memory', 'NUMERIC(18,10) NOT NULL DEFAULT 0' ],
142 [ 'addPgField', 'recentchanges', 'rc_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
143 [ 'addPgField', 'recentchanges', 'rc_log_action', 'TEXT' ],
144 [ 'addPgField', 'recentchanges', 'rc_log_type', 'TEXT' ],
145 [ 'addPgField', 'recentchanges', 'rc_logid', 'INTEGER NOT NULL DEFAULT 0' ],
146 [ 'addPgField', 'recentchanges', 'rc_new_len', 'INTEGER' ],
147 [ 'addPgField', 'recentchanges', 'rc_old_len', 'INTEGER' ],
148 [ 'addPgField', 'recentchanges', 'rc_params', 'TEXT' ],
149 [ 'addPgField', 'redirect', 'rd_interwiki', 'TEXT NULL' ],
150 [ 'addPgField', 'redirect', 'rd_fragment', 'TEXT NULL' ],
151 [ 'addPgField', 'revision', 'rev_deleted', 'SMALLINT NOT NULL DEFAULT 0' ],
152 [ 'addPgField', 'revision', 'rev_len', 'INTEGER' ],
153 [ 'addPgField', 'revision', 'rev_parent_id', 'INTEGER DEFAULT NULL' ],
154 [ 'addPgField', 'revision', 'rev_content_model', 'TEXT' ],
155 [ 'addPgField', 'revision', 'rev_content_format', 'TEXT' ],
156 [ 'addPgField', 'site_stats', 'ss_active_users', "INTEGER DEFAULT '-1'" ],
157 [ 'addPgField', 'user_newtalk', 'user_last_timestamp', 'TIMESTAMPTZ' ],
158 [ 'addPgField', 'logging', 'log_user_text', "TEXT NOT NULL DEFAULT ''" ],
159 [ 'addPgField', 'logging', 'log_page', 'INTEGER' ],
160 [ 'addPgField', 'interwiki', 'iw_api', "TEXT NOT NULL DEFAULT ''" ],
161 [ 'addPgField', 'interwiki', 'iw_wikiid', "TEXT NOT NULL DEFAULT ''" ],
162 [ 'addPgField', 'revision', 'rev_sha1', "TEXT NOT NULL DEFAULT ''" ],
163 [ 'addPgField', 'archive', 'ar_sha1', "TEXT NOT NULL DEFAULT ''" ],
164 [ 'addPgField', 'uploadstash', 'us_chunk_inx', "INTEGER NULL" ],
165 [ 'addPgField', 'job', 'job_timestamp', "TIMESTAMPTZ" ],
166 [ 'addPgField', 'job', 'job_random', "INTEGER NOT NULL DEFAULT 0" ],
167 [ 'addPgField', 'job', 'job_attempts', "INTEGER NOT NULL DEFAULT 0" ],
168 [ 'addPgField', 'job', 'job_token', "TEXT NOT NULL DEFAULT ''" ],
169 [ 'addPgField', 'job', 'job_token_timestamp', "TIMESTAMPTZ" ],
170 [ 'addPgField', 'job', 'job_sha1', "TEXT NOT NULL DEFAULT ''" ],
171 [ 'addPgField', 'archive', 'ar_id',
172 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('archive_ar_id_seq')" ],
173 [ 'addPgField', 'externallinks', 'el_id',
174 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('externallinks_el_id_seq')" ],
175 [ 'addPgField', 'uploadstash', 'us_props', "BYTEA" ],
176
177 # type changes
178 [ 'changeField', 'archive', 'ar_deleted', 'smallint', '' ],
179 [ 'changeField', 'archive', 'ar_minor_edit', 'smallint',
180 'ar_minor_edit::smallint DEFAULT 0' ],
181 [ 'changeField', 'filearchive', 'fa_deleted', 'smallint', '' ],
182 [ 'changeField', 'filearchive', 'fa_height', 'integer', '' ],
183 [ 'changeField', 'filearchive', 'fa_metadata', 'bytea', "decode(fa_metadata,'escape')" ],
184 [ 'changeField', 'filearchive', 'fa_size', 'integer', '' ],
185 [ 'changeField', 'filearchive', 'fa_width', 'integer', '' ],
186 [ 'changeField', 'filearchive', 'fa_storage_group', 'text', '' ],
187 [ 'changeField', 'filearchive', 'fa_storage_key', 'text', '' ],
188 [ 'changeField', 'image', 'img_metadata', 'bytea', "decode(img_metadata,'escape')" ],
189 [ 'changeField', 'image', 'img_size', 'integer', '' ],
190 [ 'changeField', 'image', 'img_width', 'integer', '' ],
191 [ 'changeField', 'image', 'img_height', 'integer', '' ],
192 [ 'changeField', 'interwiki', 'iw_local', 'smallint', 'iw_local::smallint' ],
193 [ 'changeField', 'interwiki', 'iw_trans', 'smallint', 'iw_trans::smallint DEFAULT 0' ],
194 [ 'changeField', 'ipblocks', 'ipb_auto', 'smallint', 'ipb_auto::smallint DEFAULT 0' ],
195 [ 'changeField', 'ipblocks', 'ipb_anon_only', 'smallint',
196 "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ],
197 [ 'changeField', 'ipblocks', 'ipb_create_account', 'smallint',
198 "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ],
199 [ 'changeField', 'ipblocks', 'ipb_enable_autoblock', 'smallint',
200 "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ],
201 [ 'changeField', 'ipblocks', 'ipb_block_email', 'smallint',
202 "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ],
203 [ 'changeField', 'ipblocks', 'ipb_address', 'text', 'ipb_address::text' ],
204 [ 'changeField', 'ipblocks', 'ipb_deleted', 'smallint', 'ipb_deleted::smallint DEFAULT 0' ],
205 [ 'changeField', 'mwuser', 'user_token', 'text', '' ],
206 [ 'changeField', 'mwuser', 'user_email_token', 'text', '' ],
207 [ 'changeField', 'objectcache', 'keyname', 'text', '' ],
208 [ 'changeField', 'oldimage', 'oi_height', 'integer', '' ],
209 [ 'changeField', 'oldimage', 'oi_metadata', 'bytea', "decode(img_metadata,'escape')" ],
210 [ 'changeField', 'oldimage', 'oi_size', 'integer', '' ],
211 [ 'changeField', 'oldimage', 'oi_width', 'integer', '' ],
212 [ 'changeField', 'page', 'page_is_redirect', 'smallint',
213 'page_is_redirect::smallint DEFAULT 0' ],
214 [ 'changeField', 'page', 'page_is_new', 'smallint', 'page_is_new::smallint DEFAULT 0' ],
215 [ 'changeField', 'querycache', 'qc_value', 'integer', '' ],
216 [ 'changeField', 'querycachetwo', 'qcc_value', 'integer', '' ],
217 [ 'changeField', 'recentchanges', 'rc_bot', 'smallint', 'rc_bot::smallint DEFAULT 0' ],
218 [ 'changeField', 'recentchanges', 'rc_deleted', 'smallint', '' ],
219 [ 'changeField', 'recentchanges', 'rc_minor', 'smallint', 'rc_minor::smallint DEFAULT 0' ],
220 [ 'changeField', 'recentchanges', 'rc_new', 'smallint', 'rc_new::smallint DEFAULT 0' ],
221 [ 'changeField', 'recentchanges', 'rc_type', 'smallint', 'rc_type::smallint DEFAULT 0' ],
222 [ 'changeField', 'recentchanges', 'rc_patrolled', 'smallint',
223 'rc_patrolled::smallint DEFAULT 0' ],
224 [ 'changeField', 'revision', 'rev_deleted', 'smallint', 'rev_deleted::smallint DEFAULT 0' ],
225 [ 'changeField', 'revision', 'rev_minor_edit', 'smallint',
226 'rev_minor_edit::smallint DEFAULT 0' ],
227 [ 'changeField', 'templatelinks', 'tl_namespace', 'smallint', 'tl_namespace::smallint' ],
228 [ 'changeField', 'user_newtalk', 'user_ip', 'text', 'host(user_ip)' ],
229 [ 'changeField', 'uploadstash', 'us_image_bits', 'smallint', '' ],
230 [ 'changeField', 'profiling', 'pf_time', 'float', '' ],
231 [ 'changeField', 'profiling', 'pf_memory', 'float', '' ],
232
233 # null changes
234 [ 'changeNullableField', 'oldimage', 'oi_bits', 'NULL' ],
235 [ 'changeNullableField', 'oldimage', 'oi_timestamp', 'NULL' ],
236 [ 'changeNullableField', 'oldimage', 'oi_major_mime', 'NULL' ],
237 [ 'changeNullableField', 'oldimage', 'oi_minor_mime', 'NULL' ],
238 [ 'changeNullableField', 'image', 'img_metadata', 'NOT NULL' ],
239 [ 'changeNullableField', 'filearchive', 'fa_metadata', 'NOT NULL' ],
240 [ 'changeNullableField', 'recentchanges', 'rc_cur_id', 'NULL' ],
241 [ 'changeNullableField', 'recentchanges', 'rc_cur_time', 'NULL' ],
242
243 [ 'checkOiDeleted' ],
244
245 # New indexes
246 [ 'addPgIndex', 'archive', 'archive_user_text', '(ar_user_text)' ],
247 [ 'addPgIndex', 'image', 'img_sha1', '(img_sha1)' ],
248 [ 'addPgIndex', 'ipblocks', 'ipb_parent_block_id', '(ipb_parent_block_id)' ],
249 [ 'addPgIndex', 'oldimage', 'oi_sha1', '(oi_sha1)' ],
250 [ 'addPgIndex', 'page', 'page_mediawiki_title', '(page_title) WHERE page_namespace = 8' ],
251 [ 'addPgIndex', 'pagelinks', 'pagelinks_title', '(pl_title)' ],
252 [ 'addPgIndex', 'page_props', 'pp_propname_page', '(pp_propname, pp_page)' ],
253 [ 'addPgIndex', 'revision', 'rev_text_id_idx', '(rev_text_id)' ],
254 [ 'addPgIndex', 'recentchanges', 'rc_timestamp_bot', '(rc_timestamp) WHERE rc_bot = 0' ],
255 [ 'addPgIndex', 'templatelinks', 'templatelinks_from', '(tl_from)' ],
256 [ 'addPgIndex', 'watchlist', 'wl_user', '(wl_user)' ],
257 [ 'addPgIndex', 'watchlist', 'wl_user_notificationtimestamp',
258 '(wl_user, wl_notificationtimestamp)' ],
259 [ 'addPgIndex', 'logging', 'logging_user_type_time',
260 '(log_user, log_type, log_timestamp)' ],
261 [ 'addPgIndex', 'logging', 'logging_page_id_time', '(log_page,log_timestamp)' ],
262 [ 'addPgIndex', 'iwlinks', 'iwl_prefix_from_title', '(iwl_prefix, iwl_from, iwl_title)' ],
263 [ 'addPgIndex', 'iwlinks', 'iwl_prefix_title_from', '(iwl_prefix, iwl_title, iwl_from)' ],
264 [ 'addPgIndex', 'job', 'job_timestamp_idx', '(job_timestamp)' ],
265 [ 'addPgIndex', 'job', 'job_sha1', '(job_sha1)' ],
266 [ 'addPgIndex', 'job', 'job_cmd_token', '(job_cmd, job_token, job_random)' ],
267 [ 'addPgIndex', 'job', 'job_cmd_token_id', '(job_cmd, job_token, job_id)' ],
268 [ 'addPgIndex', 'filearchive', 'fa_sha1', '(fa_sha1)' ],
269 [ 'addPgIndex', 'logging', 'logging_user_text_type_time',
270 '(log_user_text, log_type, log_timestamp)' ],
271 [ 'addPgIndex', 'logging', 'logging_user_text_time', '(log_user_text, log_timestamp)' ],
272
273 [ 'checkIndex', 'pagelink_unique', [
274 [ 'pl_from', 'int4_ops', 'btree', 0 ],
275 [ 'pl_namespace', 'int2_ops', 'btree', 0 ],
276 [ 'pl_title', 'text_ops', 'btree', 0 ],
277 ],
278 'CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)' ],
279 [ 'checkIndex', 'cl_sortkey', [
280 [ 'cl_to', 'text_ops', 'btree', 0 ],
281 [ 'cl_sortkey', 'text_ops', 'btree', 0 ],
282 [ 'cl_from', 'int4_ops', 'btree', 0 ],
283 ],
284 'CREATE INDEX cl_sortkey ON "categorylinks" ' .
285 'USING "btree" ("cl_to", "cl_sortkey", "cl_from")' ],
286 [ 'checkIndex', 'iwl_prefix_title_from', [
287 [ 'iwl_prefix', 'text_ops', 'btree', 0 ],
288 [ 'iwl_title', 'text_ops', 'btree', 0 ],
289 [ 'iwl_from', 'int4_ops', 'btree', 0 ],
290 ],
291 'CREATE INDEX iwl_prefix_title_from ON "iwlinks" ' .
292 'USING "btree" ("iwl_prefix", "iwl_title", "iwl_from")' ],
293 [ 'checkIndex', 'logging_times', [
294 [ 'log_timestamp', 'timestamptz_ops', 'btree', 0 ],
295 ],
296 'CREATE INDEX "logging_times" ON "logging" USING "btree" ("log_timestamp")' ],
297 [ 'dropPgIndex', 'oldimage', 'oi_name' ],
298 [ 'checkIndex', 'oi_name_archive_name', [
299 [ 'oi_name', 'text_ops', 'btree', 0 ],
300 [ 'oi_archive_name', 'text_ops', 'btree', 0 ],
301 ],
302 'CREATE INDEX "oi_name_archive_name" ON "oldimage" ' .
303 'USING "btree" ("oi_name", "oi_archive_name")' ],
304 [ 'checkIndex', 'oi_name_timestamp', [
305 [ 'oi_name', 'text_ops', 'btree', 0 ],
306 [ 'oi_timestamp', 'timestamptz_ops', 'btree', 0 ],
307 ],
308 'CREATE INDEX "oi_name_timestamp" ON "oldimage" ' .
309 'USING "btree" ("oi_name", "oi_timestamp")' ],
310 [ 'checkIndex', 'page_main_title', [
311 [ 'page_title', 'text_pattern_ops', 'btree', 0 ],
312 ],
313 'CREATE INDEX "page_main_title" ON "page" ' .
314 'USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 0)' ],
315 [ 'checkIndex', 'page_mediawiki_title', [
316 [ 'page_title', 'text_pattern_ops', 'btree', 0 ],
317 ],
318 'CREATE INDEX "page_mediawiki_title" ON "page" ' .
319 'USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 8)' ],
320 [ 'checkIndex', 'page_project_title', [
321 [ 'page_title', 'text_pattern_ops', 'btree', 0 ],
322 ],
323 'CREATE INDEX "page_project_title" ON "page" ' .
324 'USING "btree" ("page_title" "text_pattern_ops") ' .
325 'WHERE ("page_namespace" = 4)' ],
326 [ 'checkIndex', 'page_talk_title', [
327 [ 'page_title', 'text_pattern_ops', 'btree', 0 ],
328 ],
329 'CREATE INDEX "page_talk_title" ON "page" ' .
330 'USING "btree" ("page_title" "text_pattern_ops") ' .
331 'WHERE ("page_namespace" = 1)' ],
332 [ 'checkIndex', 'page_user_title', [
333 [ 'page_title', 'text_pattern_ops', 'btree', 0 ],
334 ],
335 'CREATE INDEX "page_user_title" ON "page" ' .
336 'USING "btree" ("page_title" "text_pattern_ops") WHERE ' .
337 '("page_namespace" = 2)' ],
338 [ 'checkIndex', 'page_utalk_title', [
339 [ 'page_title', 'text_pattern_ops', 'btree', 0 ],
340 ],
341 'CREATE INDEX "page_utalk_title" ON "page" ' .
342 'USING "btree" ("page_title" "text_pattern_ops") ' .
343 'WHERE ("page_namespace" = 3)' ],
344 [ 'checkIndex', 'ts2_page_text', [
345 [ 'textvector', 'tsvector_ops', 'gist', 0 ],
346 ],
347 'CREATE INDEX "ts2_page_text" ON "pagecontent" USING "gist" ("textvector")' ],
348 [ 'checkIndex', 'ts2_page_title', [
349 [ 'titlevector', 'tsvector_ops', 'gist', 0 ],
350 ],
351 'CREATE INDEX "ts2_page_title" ON "page" USING "gist" ("titlevector")' ],
352
353 [ 'checkOiNameConstraint' ],
354 [ 'checkPageDeletedTrigger' ],
355 [ 'checkRevUserFkey' ],
356 [ 'dropPgIndex', 'ipblocks', 'ipb_address' ],
357 [ 'checkIndex', 'ipb_address_unique', [
358 [ 'ipb_address', 'text_ops', 'btree', 0 ],
359 [ 'ipb_user', 'int4_ops', 'btree', 0 ],
360 [ 'ipb_auto', 'int2_ops', 'btree', 0 ],
361 [ 'ipb_anon_only', 'int2_ops', 'btree', 0 ],
362 ],
363 'CREATE UNIQUE INDEX ipb_address_unique ' .
364 'ON ipblocks (ipb_address,ipb_user,ipb_auto,ipb_anon_only)' ],
365
366 [ 'checkIwlPrefix' ],
367
368 # All FK columns should be deferred
369 [ 'changeFkeyDeferrable', 'archive', 'ar_user', 'mwuser(user_id) ON DELETE SET NULL' ],
370 [ 'changeFkeyDeferrable', 'categorylinks', 'cl_from', 'page(page_id) ON DELETE CASCADE' ],
371 [ 'changeFkeyDeferrable', 'externallinks', 'el_from', 'page(page_id) ON DELETE CASCADE' ],
372 [ 'changeFkeyDeferrable', 'filearchive', 'fa_deleted_user',
373 'mwuser(user_id) ON DELETE SET NULL' ],
374 [ 'changeFkeyDeferrable', 'filearchive', 'fa_user', 'mwuser(user_id) ON DELETE SET NULL' ],
375 [ 'changeFkeyDeferrable', 'image', 'img_user', 'mwuser(user_id) ON DELETE SET NULL' ],
376 [ 'changeFkeyDeferrable', 'imagelinks', 'il_from', 'page(page_id) ON DELETE CASCADE' ],
377 [ 'changeFkeyDeferrable', 'ipblocks', 'ipb_by', 'mwuser(user_id) ON DELETE CASCADE' ],
378 [ 'changeFkeyDeferrable', 'ipblocks', 'ipb_user', 'mwuser(user_id) ON DELETE SET NULL' ],
379 [ 'changeFkeyDeferrable', 'ipblocks', 'ipb_parent_block_id',
380 'ipblocks(ipb_id) ON DELETE SET NULL' ],
381 [ 'changeFkeyDeferrable', 'langlinks', 'll_from', 'page(page_id) ON DELETE CASCADE' ],
382 [ 'changeFkeyDeferrable', 'logging', 'log_user', 'mwuser(user_id) ON DELETE SET NULL' ],
383 [ 'changeFkeyDeferrable', 'oldimage', 'oi_name',
384 'image(img_name) ON DELETE CASCADE ON UPDATE CASCADE' ],
385 [ 'changeFkeyDeferrable', 'oldimage', 'oi_user', 'mwuser(user_id) ON DELETE SET NULL' ],
386 [ 'changeFkeyDeferrable', 'pagelinks', 'pl_from', 'page(page_id) ON DELETE CASCADE' ],
387 [ 'changeFkeyDeferrable', 'page_props', 'pp_page', 'page (page_id) ON DELETE CASCADE' ],
388 [ 'changeFkeyDeferrable', 'page_restrictions', 'pr_page',
389 'page(page_id) ON DELETE CASCADE' ],
390 [ 'changeFkeyDeferrable', 'protected_titles', 'pt_user',
391 'mwuser(user_id) ON DELETE SET NULL' ],
392 [ 'changeFkeyDeferrable', 'recentchanges', 'rc_user',
393 'mwuser(user_id) ON DELETE SET NULL' ],
394 [ 'changeFkeyDeferrable', 'redirect', 'rd_from', 'page(page_id) ON DELETE CASCADE' ],
395 [ 'changeFkeyDeferrable', 'revision', 'rev_page', 'page (page_id) ON DELETE CASCADE' ],
396 [ 'changeFkeyDeferrable', 'revision', 'rev_user', 'mwuser(user_id) ON DELETE RESTRICT' ],
397 [ 'changeFkeyDeferrable', 'templatelinks', 'tl_from', 'page(page_id) ON DELETE CASCADE' ],
398 [ 'changeFkeyDeferrable', 'user_groups', 'ug_user', 'mwuser(user_id) ON DELETE CASCADE' ],
399 [ 'changeFkeyDeferrable', 'user_newtalk', 'user_id', 'mwuser(user_id) ON DELETE CASCADE' ],
400 [ 'changeFkeyDeferrable', 'user_properties', 'up_user',
401 'mwuser(user_id) ON DELETE CASCADE' ],
402 [ 'changeFkeyDeferrable', 'watchlist', 'wl_user', 'mwuser(user_id) ON DELETE CASCADE' ],
403
404 # r81574
405 [ 'addInterwikiType' ],
406 # end
407 [ 'tsearchFixes' ],
408
409 // 1.23
410 [ 'addPgField', 'recentchanges', 'rc_source', "TEXT NOT NULL DEFAULT ''" ],
411 [ 'addPgField', 'page', 'page_links_updated', "TIMESTAMPTZ NULL" ],
412 [ 'addPgField', 'mwuser', 'user_password_expires', 'TIMESTAMPTZ NULL' ],
413 [ 'changeFieldPurgeTable', 'l10n_cache', 'lc_value', 'bytea',
414 "replace(lc_value,'\','\\\\')::bytea" ],
415 // 1.23.9
416 [ 'rebuildTextSearch' ],
417
418 // 1.24
419 [ 'addPgField', 'page_props', 'pp_sortkey', 'float NULL' ],
420 [ 'addPgIndex', 'page_props', 'pp_propname_sortkey_page',
421 '( pp_propname, pp_sortkey, pp_page ) WHERE ( pp_sortkey IS NOT NULL )' ],
422 [ 'addPgField', 'page', 'page_lang', 'TEXT default NULL' ],
423 [ 'addPgField', 'pagelinks', 'pl_from_namespace', 'INTEGER NOT NULL DEFAULT 0' ],
424 [ 'addPgField', 'templatelinks', 'tl_from_namespace', 'INTEGER NOT NULL DEFAULT 0' ],
425 [ 'addPgField', 'imagelinks', 'il_from_namespace', 'INTEGER NOT NULL DEFAULT 0' ],
426
427 // 1.25
428 [ 'dropTable', 'hitcounter' ],
429 [ 'dropField', 'site_stats', 'ss_total_views', 'patch-drop-ss_total_views.sql' ],
430 [ 'dropField', 'page', 'page_counter', 'patch-drop-page_counter.sql' ],
431 [ 'dropFkey', 'recentchanges', 'rc_cur_id' ],
432
433 // 1.27
434 [ 'dropTable', 'msg_resource_links' ],
435 [ 'dropTable', 'msg_resource' ],
436 [
437 'addPgField', 'watchlist', 'wl_id',
438 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('watchlist_wl_id_seq')"
439 ],
440
441 // 1.28
442 [ 'addPgIndex', 'recentchanges', 'rc_name_type_patrolled_timestamp',
443 '( rc_namespace, rc_type, rc_patrolled, rc_timestamp )' ],
444 [ 'addPgField', 'change_tag', 'ct_id',
445 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('change_tag_ct_id_seq')" ],
446 [ 'addPgField', 'tag_summary', 'ts_id',
447 "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('tag_summary_ts_id_seq')" ],
448
449 // 1.29
450 [ 'addPgField', 'externallinks', 'el_index_60', "BYTEA NOT NULL DEFAULT ''" ],
451 [ 'addPgIndex', 'externallinks', 'el_index_60', '( el_index_60, el_id )' ],
452 [ 'addPgIndex', 'externallinks', 'el_from_index_60', '( el_from, el_index_60, el_id )' ],
453 [ 'addPgField', 'user_groups', 'ug_expiry', "TIMESTAMPTZ NULL" ],
454 [ 'addPgIndex', 'user_groups', 'user_groups_expiry', '( ug_expiry )' ],
455
456 // 1.30
457 [ 'addPgEnumValue', 'media_type', '3D' ],
458 [ 'setDefault', 'revision', 'rev_comment', '' ],
459 [ 'changeNullableField', 'revision', 'rev_comment', 'NOT NULL', true ],
460 [ 'setDefault', 'archive', 'ar_comment', '' ],
461 [ 'changeNullableField', 'archive', 'ar_comment', 'NOT NULL', true ],
462 [ 'addPgField', 'archive', 'ar_comment_id', 'INTEGER NOT NULL DEFAULT 0' ],
463 [ 'setDefault', 'ipblocks', 'ipb_reason', '' ],
464 [ 'addPgField', 'ipblocks', 'ipb_reason_id', 'INTEGER NOT NULL DEFAULT 0' ],
465 [ 'setDefault', 'image', 'img_description', '' ],
466 [ 'setDefault', 'oldimage', 'oi_description', '' ],
467 [ 'changeNullableField', 'oldimage', 'oi_description', 'NOT NULL', true ],
468 [ 'addPgField', 'oldimage', 'oi_description_id', 'INTEGER NOT NULL DEFAULT 0' ],
469 [ 'setDefault', 'filearchive', 'fa_deleted_reason', '' ],
470 [ 'changeNullableField', 'filearchive', 'fa_deleted_reason', 'NOT NULL', true ],
471 [ 'addPgField', 'filearchive', 'fa_deleted_reason_id', 'INTEGER NOT NULL DEFAULT 0' ],
472 [ 'setDefault', 'filearchive', 'fa_description', '' ],
473 [ 'addPgField', 'filearchive', 'fa_description_id', 'INTEGER NOT NULL DEFAULT 0' ],
474 [ 'setDefault', 'recentchanges', 'rc_comment', '' ],
475 [ 'changeNullableField', 'recentchanges', 'rc_comment', 'NOT NULL', true ],
476 [ 'addPgField', 'recentchanges', 'rc_comment_id', 'INTEGER NOT NULL DEFAULT 0' ],
477 [ 'setDefault', 'logging', 'log_comment', '' ],
478 [ 'changeNullableField', 'logging', 'log_comment', 'NOT NULL', true ],
479 [ 'addPgField', 'logging', 'log_comment_id', 'INTEGER NOT NULL DEFAULT 0' ],
480 [ 'setDefault', 'protected_titles', 'pt_reason', '' ],
481 [ 'changeNullableField', 'protected_titles', 'pt_reason', 'NOT NULL', true ],
482 [ 'addPgField', 'protected_titles', 'pt_reason_id', 'INTEGER NOT NULL DEFAULT 0' ],
483 [ 'addTable', 'comment', 'patch-comment-table.sql' ],
484
485 // This field was added in 1.31, but is put here so it can be used by 'migrateComments'
486 [ 'addPgField', 'image', 'img_description_id', 'INTEGER NOT NULL DEFAULT 0' ],
487
488 [ 'migrateComments' ],
489 [ 'addIndex', 'site_stats', 'site_stats_pkey', 'patch-site_stats-pk.sql' ],
490 [ 'addTable', 'ip_changes', 'patch-ip_changes.sql' ],
491
492 // 1.31
493 [ 'addTable', 'slots', 'patch-slots-table.sql' ],
494 [ 'dropPgIndex', 'slots', 'slot_role_inherited' ],
495 [ 'dropPgField', 'slots', 'slot_inherited' ],
496 [ 'addPgField', 'slots', 'slot_origin', 'INTEGER NOT NULL' ],
497 [
498 'addPgIndex',
499 'slots',
500 'slot_revision_origin_role',
501 '( slot_revision_id, slot_origin, slot_role_id )',
502 ],
503 [ 'addTable', 'content', 'patch-content-table.sql' ],
504 [ 'addTable', 'content_models', 'patch-content_models-table.sql' ],
505 [ 'addTable', 'slot_roles', 'patch-slot_roles-table.sql' ],
506 [ 'migrateArchiveText' ],
507 [ 'addTable', 'actor', 'patch-actor-table.sql' ],
508 [ 'setDefault', 'revision', 'rev_user', 0 ],
509 [ 'setDefault', 'revision', 'rev_user_text', '' ],
510 [ 'setDefault', 'archive', 'ar_user', 0 ],
511 [ 'changeNullableField', 'archive', 'ar_user', 'NOT NULL', true ],
512 [ 'setDefault', 'archive', 'ar_user_text', '' ],
513 [ 'addPgField', 'archive', 'ar_actor', 'INTEGER NOT NULL DEFAULT 0' ],
514 [ 'addPgIndex', 'archive', 'archive_actor', '( ar_actor )' ],
515 [ 'setDefault', 'ipblocks', 'ipb_by', 0 ],
516 [ 'addPgField', 'ipblocks', 'ipb_by_actor', 'INTEGER NOT NULL DEFAULT 0' ],
517 [ 'setDefault', 'image', 'img_user', 0 ],
518 [ 'changeNullableField', 'image', 'img_user', 'NOT NULL', true ],
519 [ 'setDefault', 'image', 'img_user_text', '' ],
520 [ 'addPgField', 'image', 'img_actor', 'INTEGER NOT NULL DEFAULT 0' ],
521 [ 'setDefault', 'oldimage', 'oi_user', 0 ],
522 [ 'changeNullableField', 'oldimage', 'oi_user', 'NOT NULL', true ],
523 [ 'setDefault', 'oldimage', 'oi_user_text', '' ],
524 [ 'addPgField', 'oldimage', 'oi_actor', 'INTEGER NOT NULL DEFAULT 0' ],
525 [ 'setDefault', 'filearchive', 'fa_user', 0 ],
526 [ 'changeNullableField', 'filearchive', 'fa_user', 'NOT NULL', true ],
527 [ 'setDefault', 'filearchive', 'fa_user_text', '' ],
528 [ 'addPgField', 'filearchive', 'fa_actor', 'INTEGER NOT NULL DEFAULT 0' ],
529 [ 'setDefault', 'recentchanges', 'rc_user', 0 ],
530 [ 'changeNullableField', 'recentchanges', 'rc_user', 'NOT NULL', true ],
531 [ 'setDefault', 'recentchanges', 'rc_user_text', '' ],
532 [ 'addPgField', 'recentchanges', 'rc_actor', 'INTEGER NOT NULL DEFAULT 0' ],
533 [ 'setDefault', 'logging', 'log_user', 0 ],
534 [ 'changeNullableField', 'logging', 'log_user', 'NOT NULL', true ],
535 [ 'addPgField', 'logging', 'log_actor', 'INTEGER NOT NULL DEFAULT 0' ],
536 [ 'addPgIndex', 'logging', 'logging_actor_time_backwards', '( log_timestamp, log_actor )' ],
537 [ 'addPgIndex', 'logging', 'logging_actor_type_time', '( log_actor, log_type, log_timestamp )' ],
538 [ 'addPgIndex', 'logging', 'logging_actor_time', '( log_actor, log_timestamp )' ],
539 [ 'migrateActors' ],
540 [ 'modifyTable', 'site_stats', 'patch-site_stats-modify.sql' ],
541 [ 'populateArchiveRevId' ],
542 [ 'dropPgIndex', 'recentchanges', 'rc_namespace_title' ],
543 [
544 'addPgIndex',
545 'recentchanges',
546 'rc_namespace_title_timestamp', '( rc_namespace, rc_title, rc_timestamp )'
547 ],
548 [ 'setSequenceOwner', 'mwuser', 'user_id', 'user_user_id_seq' ],
549 [ 'setSequenceOwner', 'actor', 'actor_id', 'actor_actor_id_seq' ],
550 [ 'setSequenceOwner', 'page', 'page_id', 'page_page_id_seq' ],
551 [ 'setSequenceOwner', 'revision', 'rev_id', 'revision_rev_id_seq' ],
552 [ 'setSequenceOwner', 'ip_changes', 'ipc_rev_id', 'ip_changes_ipc_rev_id_seq' ],
553 [ 'setSequenceOwner', 'pagecontent', 'old_id', 'text_old_id_seq' ],
554 [ 'setSequenceOwner', 'comment', 'comment_id', 'comment_comment_id_seq' ],
555 [ 'setSequenceOwner', 'page_restrictions', 'pr_id', 'page_restrictions_pr_id_seq' ],
556 [ 'setSequenceOwner', 'archive', 'ar_id', 'archive_ar_id_seq' ],
557 [ 'setSequenceOwner', 'content', 'content_id', 'content_content_id_seq' ],
558 [ 'setSequenceOwner', 'slot_roles', 'role_id', 'slot_roles_role_id_seq' ],
559 [ 'setSequenceOwner', 'content_models', 'model_id', 'content_models_model_id_seq' ],
560 [ 'setSequenceOwner', 'externallinks', 'el_id', 'externallinks_el_id_seq' ],
561 [ 'setSequenceOwner', 'ipblocks', 'ipb_id', 'ipblocks_ipb_id_seq' ],
562 [ 'setSequenceOwner', 'filearchive', 'fa_id', 'filearchive_fa_id_seq' ],
563 [ 'setSequenceOwner', 'uploadstash', 'us_id', 'uploadstash_us_id_seq' ],
564 [ 'setSequenceOwner', 'recentchanges', 'rc_id', 'recentchanges_rc_id_seq' ],
565 [ 'setSequenceOwner', 'watchlist', 'wl_id', 'watchlist_wl_id_seq' ],
566 [ 'setSequenceOwner', 'logging', 'log_id', 'logging_log_id_seq' ],
567 [ 'setSequenceOwner', 'job', 'job_id', 'job_job_id_seq' ],
568 [ 'setSequenceOwner', 'category', 'cat_id', 'category_cat_id_seq' ],
569 [ 'setSequenceOwner', 'change_tag', 'ct_id', 'change_tag_ct_id_seq' ],
570 [ 'setSequenceOwner', 'tag_summary', 'ts_id', 'tag_summary_ts_id_seq' ],
571 [ 'setSequenceOwner', 'sites', 'site_id', 'sites_site_id_seq' ],
572 ];
573 }
574
575 protected function getOldGlobalUpdates() {
576 global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
577
578 $updates = [];
579
580 # Add missing extension tables
581 foreach ( $wgExtNewTables as $tableRecord ) {
582 $updates[] = [
583 'addTable', $tableRecord[0], $tableRecord[1], true
584 ];
585 }
586
587 # Add missing extension fields
588 foreach ( $wgExtPGNewFields as $fieldRecord ) {
589 $updates[] = [
590 'addPgField', $fieldRecord[0], $fieldRecord[1],
591 $fieldRecord[2]
592 ];
593 }
594
595 # Change altered columns
596 foreach ( $wgExtPGAlteredFields as $fieldRecord ) {
597 $updates[] = [
598 'changeField', $fieldRecord[0], $fieldRecord[1],
599 $fieldRecord[2]
600 ];
601 }
602
603 # Add missing extension indexes
604 foreach ( $wgExtNewIndexes as $fieldRecord ) {
605 $updates[] = [
606 'addPgExtIndex', $fieldRecord[0], $fieldRecord[1],
607 $fieldRecord[2]
608 ];
609 }
610
611 return $updates;
612 }
613
614 protected function describeTable( $table ) {
615 $q = <<<END
616 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
617 WHERE pg_class.relnamespace = pg_namespace.oid
618 AND attrelid=pg_class.oid AND attnum > 0
619 AND relname=%s AND nspname=%s
620 END;
621 $res = $this->db->query( sprintf( $q,
622 $this->db->addQuotes( $table ),
623 $this->db->addQuotes( $this->db->getCoreSchema() ) ) );
624 if ( !$res ) {
625 return null;
626 }
627
628 $cols = [];
629 foreach ( $res as $r ) {
630 $cols[] = [
631 "name" => $r[0],
632 "ord" => $r[1],
633 ];
634 }
635
636 return $cols;
637 }
638
639 function describeIndex( $idx ) {
640 // first fetch the key (which is a list of columns ords) and
641 // the table the index applies to (an oid)
642 $q = <<<END
643 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
644 WHERE nspname=%s
645 AND pg_class.relnamespace = pg_namespace.oid
646 AND relname=%s
647 AND indexrelid=pg_class.oid
648 END;
649 $res = $this->db->query(
650 sprintf(
651 $q,
652 $this->db->addQuotes( $this->db->getCoreSchema() ),
653 $this->db->addQuotes( $idx )
654 )
655 );
656 if ( !$res ) {
657 return null;
658 }
659 $r = $this->db->fetchRow( $res );
660 if ( !$r ) {
661 return null;
662 }
663
664 $indkey = $r[0];
665 $relid = intval( $r[1] );
666 $indkeys = explode( ' ', $indkey );
667
668 $colnames = [];
669 foreach ( $indkeys as $rid ) {
670 $query = <<<END
671 SELECT attname FROM pg_class, pg_attribute
672 WHERE attrelid=$relid
673 AND attnum=%d
674 AND attrelid=pg_class.oid
675 END;
676 $r2 = $this->db->query( sprintf( $query, $rid ) );
677 if ( !$r2 ) {
678 return null;
679 }
680 $row2 = $this->db->fetchRow( $r2 );
681 if ( !$row2 ) {
682 return null;
683 }
684 $colnames[] = $row2[0];
685 }
686
687 return $colnames;
688 }
689
690 function fkeyDeltype( $fkey ) {
691 $q = <<<END
692 SELECT confdeltype FROM pg_constraint, pg_namespace
693 WHERE connamespace=pg_namespace.oid
694 AND nspname=%s
695 AND conname=%s;
696 END;
697 $r = $this->db->query(
698 sprintf(
699 $q,
700 $this->db->addQuotes( $this->db->getCoreSchema() ),
701 $this->db->addQuotes( $fkey )
702 )
703 );
704 $row = $this->db->fetchRow( $r );
705 if ( !$row ) {
706 return null;
707 }
708
709 return $row[0];
710 }
711
712 function ruleDef( $table, $rule ) {
713 $q = <<<END
714 SELECT definition FROM pg_rules
715 WHERE schemaname = %s
716 AND tablename = %s
717 AND rulename = %s
718 END;
719 $r = $this->db->query(
720 sprintf(
721 $q,
722 $this->db->addQuotes( $this->db->getCoreSchema() ),
723 $this->db->addQuotes( $table ),
724 $this->db->addQuotes( $rule )
725 )
726 );
727 $row = $this->db->fetchRow( $r );
728 if ( !$row ) {
729 return null;
730 }
731 $d = $row[0];
732
733 return $d;
734 }
735
736 protected function addSequence( $table, $pkey, $ns ) {
737 if ( !$this->db->sequenceExists( $ns ) ) {
738 $this->output( "Creating sequence $ns\n" );
739 if ( $pkey !== false ) {
740 $this->db->query( "CREATE SEQUENCE $ns OWNED BY $table.$pkey" );
741 $this->setDefault( $table, $pkey, '"nextval"(\'"' . $ns . '"\'::"regclass")' );
742 } else {
743 $this->db->query( "CREATE SEQUENCE $ns" );
744 }
745 }
746 }
747
748 protected function dropSequence( $table, $ns ) {
749 if ( $this->db->sequenceExists( $ns ) ) {
750 $this->output( "Dropping sequence $ns\n" );
751 $this->db->query( "DROP SEQUENCE $ns CASCADE" );
752 }
753 }
754
755 protected function renameSequence( $old, $new ) {
756 if ( $this->db->sequenceExists( $new ) ) {
757 $this->output( "...sequence $new already exists.\n" );
758
759 return;
760 }
761 if ( $this->db->sequenceExists( $old ) ) {
762 $this->output( "Renaming sequence $old to $new\n" );
763 $this->db->query( "ALTER SEQUENCE $old RENAME TO $new" );
764 }
765 }
766
767 protected function setSequenceOwner( $table, $pkey, $seq ) {
768 if ( $this->db->sequenceExists( $seq ) ) {
769 $this->output( "Setting sequence $seq owner to $table.$pkey\n" );
770 $this->db->query( "ALTER SEQUENCE $seq OWNED BY $table.$pkey" );
771 }
772 }
773
774 protected function renameTable( $old, $new, $patch = false ) {
775 if ( $this->db->tableExists( $old ) ) {
776 $this->output( "Renaming table $old to $new\n" );
777 $old = $this->db->realTableName( $old, "quoted" );
778 $new = $this->db->realTableName( $new, "quoted" );
779 $this->db->query( "ALTER TABLE $old RENAME TO $new" );
780 if ( $patch !== false ) {
781 $this->applyPatch( $patch );
782 }
783 }
784 }
785
786 protected function renameIndex(
787 $table, $old, $new, $skipBothIndexExistWarning = false, $a = false, $b = false
788 ) {
789 // First requirement: the table must exist
790 if ( !$this->db->tableExists( $table, __METHOD__ ) ) {
791 $this->output( "...skipping: '$table' table doesn't exist yet.\n" );
792
793 return;
794 }
795
796 // Second requirement: the new index must be missing
797 if ( $this->db->indexExists( $table, $new, __METHOD__ ) ) {
798 $this->output( "...index $new already set on $table table.\n" );
799 if ( !$skipBothIndexExistWarning
800 && $this->db->indexExists( $table, $old, __METHOD__ )
801 ) {
802 $this->output( "...WARNING: $old still exists, despite it has been " .
803 "renamed into $new (which also exists).\n" .
804 " $old should be manually removed if not needed anymore.\n" );
805 }
806
807 return;
808 }
809
810 // Third requirement: the old index must exist
811 if ( !$this->db->indexExists( $table, $old, __METHOD__ ) ) {
812 $this->output( "...skipping: index $old doesn't exist.\n" );
813
814 return;
815 }
816
817 $this->db->query( "ALTER INDEX $old RENAME TO $new" );
818 }
819
820 protected function dropPgField( $table, $field ) {
821 $fi = $this->db->fieldInfo( $table, $field );
822 if ( is_null( $fi ) ) {
823 $this->output( "...$table table does not contain $field field.\n" );
824
825 return;
826 } else {
827 $this->output( "Dropping column '$table.$field'\n" );
828 $this->db->query( "ALTER TABLE $table DROP COLUMN $field" );
829 }
830 }
831
832 protected function addPgField( $table, $field, $type ) {
833 $fi = $this->db->fieldInfo( $table, $field );
834 if ( !is_null( $fi ) ) {
835 $this->output( "...column '$table.$field' already exists\n" );
836
837 return;
838 } else {
839 $this->output( "Adding column '$table.$field'\n" );
840 $this->db->query( "ALTER TABLE $table ADD $field $type" );
841 }
842 }
843
844 protected function changeField( $table, $field, $newtype, $default ) {
845 $fi = $this->db->fieldInfo( $table, $field );
846 if ( is_null( $fi ) ) {
847 $this->output( "...ERROR: expected column $table.$field to exist\n" );
848 exit( 1 );
849 }
850
851 if ( $fi->type() === $newtype ) {
852 $this->output( "...column '$table.$field' is already of type '$newtype'\n" );
853 } else {
854 $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" );
855 $sql = "ALTER TABLE $table ALTER $field TYPE $newtype";
856 if ( strlen( $default ) ) {
857 $res = [];
858 if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) {
859 $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]";
860 $this->db->query( $sqldef );
861 $default = preg_replace( '/\s*DEFAULT .+/', '', $default );
862 }
863 $sql .= " USING $default";
864 }
865 $this->db->query( $sql );
866 }
867 }
868
869 protected function changeFieldPurgeTable( $table, $field, $newtype, $default ) {
870 # # For a cache table, empty it if the field needs to be changed, because the old contents
871 # # may be corrupted. If the column is already the desired type, refrain from purging.
872 $fi = $this->db->fieldInfo( $table, $field );
873 if ( is_null( $fi ) ) {
874 $this->output( "...ERROR: expected column $table.$field to exist\n" );
875 exit( 1 );
876 }
877
878 if ( $fi->type() === $newtype ) {
879 $this->output( "...column '$table.$field' is already of type '$newtype'\n" );
880 } else {
881 $this->output( "Purging data from cache table '$table'\n" );
882 $this->db->query( "DELETE from $table" );
883 $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" );
884 $sql = "ALTER TABLE $table ALTER $field TYPE $newtype";
885 if ( strlen( $default ) ) {
886 $res = [];
887 if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) {
888 $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]";
889 $this->db->query( $sqldef );
890 $default = preg_replace( '/\s*DEFAULT .+/', '', $default );
891 }
892 $sql .= " USING $default";
893 }
894 $this->db->query( $sql );
895 }
896 }
897
898 protected function setDefault( $table, $field, $default ) {
899 $info = $this->db->fieldInfo( $table, $field );
900 if ( $info->defaultValue() !== $default ) {
901 $this->output( "Changing '$table.$field' default value\n" );
902 $this->db->query( "ALTER TABLE $table ALTER $field SET DEFAULT "
903 . $this->db->addQuotes( $default ) );
904 }
905 }
906
907 protected function changeNullableField( $table, $field, $null, $update = false ) {
908 $fi = $this->db->fieldInfo( $table, $field );
909 if ( is_null( $fi ) ) {
910 $this->output( "...ERROR: expected column $table.$field to exist\n" );
911 exit( 1 );
912 }
913 if ( $fi->isNullable() ) {
914 # # It's NULL - does it need to be NOT NULL?
915 if ( 'NOT NULL' === $null ) {
916 $this->output( "Changing '$table.$field' to not allow NULLs\n" );
917 if ( $update ) {
918 $this->db->query( "UPDATE $table SET $field = DEFAULT WHERE $field IS NULL" );
919 }
920 $this->db->query( "ALTER TABLE $table ALTER $field SET NOT NULL" );
921 } else {
922 $this->output( "...column '$table.$field' is already set as NULL\n" );
923 }
924 } else {
925 # # It's NOT NULL - does it need to be NULL?
926 if ( 'NULL' === $null ) {
927 $this->output( "Changing '$table.$field' to allow NULLs\n" );
928 $this->db->query( "ALTER TABLE $table ALTER $field DROP NOT NULL" );
929 } else {
930 $this->output( "...column '$table.$field' is already set as NOT NULL\n" );
931 }
932 }
933 }
934
935 public function addPgIndex( $table, $index, $type ) {
936 if ( $this->db->indexExists( $table, $index ) ) {
937 $this->output( "...index '$index' on table '$table' already exists\n" );
938 } else {
939 $this->output( "Creating index '$index' on table '$table' $type\n" );
940 $this->db->query( "CREATE INDEX $index ON $table $type" );
941 }
942 }
943
944 public function addPgExtIndex( $table, $index, $type ) {
945 if ( $this->db->indexExists( $table, $index ) ) {
946 $this->output( "...index '$index' on table '$table' already exists\n" );
947 } else {
948 if ( preg_match( '/^\(/', $type ) ) {
949 $this->output( "Creating index '$index' on table '$table'\n" );
950 $this->db->query( "CREATE INDEX $index ON $table $type" );
951 } else {
952 $this->applyPatch( $type, true, "Creating index '$index' on table '$table'" );
953 }
954 }
955 }
956
957 /**
958 * Add a value to an existing PostgreSQL enum type
959 * @since 1.31
960 * @param string $type Type name. Must be in the core schema.
961 * @param string $value Value to add.
962 */
963 public function addPgEnumValue( $type, $value ) {
964 $row = $this->db->selectRow(
965 [
966 't' => 'pg_catalog.pg_type',
967 'n' => 'pg_catalog.pg_namespace',
968 'e' => 'pg_catalog.pg_enum',
969 ],
970 [ 't.typname', 't.typtype', 'e.enumlabel' ],
971 [
972 't.typname' => $type,
973 'n.nspname' => $this->db->getCoreSchema(),
974 ],
975 __METHOD__,
976 [],
977 [
978 'n' => [ 'JOIN', 't.typnamespace = n.oid' ],
979 'e' => [ 'LEFT JOIN', [ 'e.enumtypid = t.oid', 'e.enumlabel' => $value ] ],
980 ]
981 );
982
983 if ( !$row ) {
984 $this->output( "...Type $type does not exist, skipping modify enum.\n" );
985 } elseif ( $row->typtype !== 'e' ) {
986 $this->output( "...Type $type does not seem to be an enum, skipping modify enum.\n" );
987 } elseif ( $row->enumlabel === $value ) {
988 $this->output( "...Enum type $type already contains value '$value'.\n" );
989 } else {
990 $this->output( "...Adding value '$value' to enum type $type.\n" );
991 $etype = $this->db->addIdentifierQuotes( $type );
992 $evalue = $this->db->addQuotes( $value );
993 $this->db->query( "ALTER TYPE $etype ADD VALUE $evalue" );
994 }
995 }
996
997 protected function dropFkey( $table, $field ) {
998 $fi = $this->db->fieldInfo( $table, $field );
999 if ( is_null( $fi ) ) {
1000 $this->output( "WARNING! Column '$table.$field' does not exist but it should! " .
1001 "Please report this.\n" );
1002 return;
1003 }
1004 $conname = $fi->conname();
1005 if ( $fi->conname() ) {
1006 $this->output( "Dropping foreign key constraint on '$table.$field'\n" );
1007 $conclause = "CONSTRAINT \"$conname\"";
1008 $command = "ALTER TABLE $table DROP CONSTRAINT $conname";
1009 $this->db->query( $command );
1010 } else {
1011 $this->output( "...foreign key constraint on '$table.$field' already does not exist\n" );
1012 };
1013 }
1014
1015 protected function changeFkeyDeferrable( $table, $field, $clause ) {
1016 $fi = $this->db->fieldInfo( $table, $field );
1017 if ( is_null( $fi ) ) {
1018 $this->output( "WARNING! Column '$table.$field' does not exist but it should! " .
1019 "Please report this.\n" );
1020
1021 return;
1022 }
1023 if ( $fi->is_deferred() && $fi->is_deferrable() ) {
1024 return;
1025 }
1026 $this->output( "Altering column '$table.$field' to be DEFERRABLE INITIALLY DEFERRED\n" );
1027 $conname = $fi->conname();
1028 if ( $fi->conname() ) {
1029 $conclause = "CONSTRAINT \"$conname\"";
1030 $command = "ALTER TABLE $table DROP CONSTRAINT $conname";
1031 $this->db->query( $command );
1032 } else {
1033 $this->output( "Column '$table.$field' does not have a foreign key " .
1034 "constraint, will be added\n" );
1035 $conclause = "";
1036 }
1037 $command =
1038 "ALTER TABLE $table ADD $conclause " .
1039 "FOREIGN KEY ($field) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
1040 $this->db->query( $command );
1041 }
1042
1043 protected function convertArchive2() {
1044 if ( $this->db->tableExists( "archive2" ) ) {
1045 if ( $this->db->ruleExists( 'archive', 'archive_insert' ) ) {
1046 $this->output( "Dropping rule 'archive_insert'\n" );
1047 $this->db->query( 'DROP RULE archive_insert ON archive' );
1048 }
1049 if ( $this->db->ruleExists( 'archive', 'archive_delete' ) ) {
1050 $this->output( "Dropping rule 'archive_delete'\n" );
1051 $this->db->query( 'DROP RULE archive_delete ON archive' );
1052 }
1053 $this->applyPatch(
1054 'patch-remove-archive2.sql',
1055 false,
1056 "Converting 'archive2' back to normal archive table"
1057 );
1058 } else {
1059 $this->output( "...obsolete table 'archive2' does not exist\n" );
1060 }
1061 }
1062
1063 protected function checkOiDeleted() {
1064 if ( $this->db->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) {
1065 $this->output( "Changing 'oldimage.oi_deleted' to type 'smallint'\n" );
1066 $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
1067 $this->db->query(
1068 "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
1069 $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
1070 } else {
1071 $this->output( "...column 'oldimage.oi_deleted' is already of type 'smallint'\n" );
1072 }
1073 }
1074
1075 protected function checkOiNameConstraint() {
1076 if ( $this->db->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
1077 $this->output( "...table 'oldimage' has correct cascading delete/update " .
1078 "foreign key to image\n" );
1079 } else {
1080 if ( $this->db->hasConstraint( "oldimage_oi_name_fkey" ) ) {
1081 $this->db->query(
1082 "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
1083 }
1084 if ( $this->db->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
1085 $this->db->query(
1086 "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
1087 }
1088 $this->output( "Making foreign key on table 'oldimage' (to image) a cascade delete/update\n" );
1089 $this->db->query(
1090 "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
1091 "FOREIGN KEY (oi_name) REFERENCES image(img_name) " .
1092 "ON DELETE CASCADE ON UPDATE CASCADE" );
1093 }
1094 }
1095
1096 protected function checkPageDeletedTrigger() {
1097 if ( !$this->db->triggerExists( 'page', 'page_deleted' ) ) {
1098 $this->applyPatch(
1099 'patch-page_deleted.sql',
1100 false,
1101 "Adding function and trigger 'page_deleted' to table 'page'"
1102 );
1103 } else {
1104 $this->output( "...table 'page' has 'page_deleted' trigger\n" );
1105 }
1106 }
1107
1108 protected function dropPgIndex( $table, $index ) {
1109 if ( $this->db->indexExists( $table, $index ) ) {
1110 $this->output( "Dropping obsolete index '$index'\n" );
1111 $this->db->query( "DROP INDEX \"" . $index . "\"" );
1112 }
1113 }
1114
1115 protected function checkIndex( $index, $should_be, $good_def ) {
1116 $pu = $this->db->indexAttributes( $index );
1117 if ( !empty( $pu ) && $pu != $should_be ) {
1118 $this->output( "Dropping obsolete version of index '$index'\n" );
1119 $this->db->query( "DROP INDEX \"" . $index . "\"" );
1120 $pu = [];
1121 } else {
1122 $this->output( "...no need to drop index '$index'\n" );
1123 }
1124
1125 if ( empty( $pu ) ) {
1126 $this->output( "Creating index '$index'\n" );
1127 $this->db->query( $good_def );
1128 } else {
1129 $this->output( "...index '$index' exists\n" );
1130 }
1131 }
1132
1133 protected function checkRevUserFkey() {
1134 if ( $this->fkeyDeltype( 'revision_rev_user_fkey' ) == 'r' ) {
1135 $this->output( "...constraint 'revision_rev_user_fkey' is ON DELETE RESTRICT\n" );
1136 } else {
1137 $this->applyPatch(
1138 'patch-revision_rev_user_fkey.sql',
1139 false,
1140 "Changing constraint 'revision_rev_user_fkey' to ON DELETE RESTRICT"
1141 );
1142 }
1143 }
1144
1145 protected function checkIwlPrefix() {
1146 if ( $this->db->indexExists( 'iwlinks', 'iwl_prefix' ) ) {
1147 $this->applyPatch(
1148 'patch-rename-iwl_prefix.sql',
1149 false,
1150 "Replacing index 'iwl_prefix' with 'iwl_prefix_title_from'"
1151 );
1152 }
1153 }
1154
1155 protected function addInterwikiType() {
1156 $this->applyPatch( 'patch-add_interwiki.sql', false, "Refreshing add_interwiki()" );
1157 }
1158
1159 protected function tsearchFixes() {
1160 # Tweak the page_title tsearch2 trigger to filter out slashes
1161 # This is create or replace, so harmless to call if not needed
1162 $this->applyPatch( 'patch-ts2pagetitle.sql', false, "Refreshing ts2_page_title()" );
1163
1164 # If the server is 8.3 or higher, rewrite the tsearch2 triggers
1165 # in case they have the old 'default' versions
1166 # Gather version numbers in case we need them
1167 if ( $this->db->getServerVersion() >= 8.3 ) {
1168 $this->applyPatch( 'patch-tsearch2funcs.sql', false, "Rewriting tsearch2 triggers" );
1169 }
1170 }
1171
1172 protected function rebuildTextSearch() {
1173 if ( $this->updateRowExists( 'patch-textsearch_bug66650.sql' ) ) {
1174 $this->output( "...T68650 already fixed or not applicable.\n" );
1175 return;
1176 };
1177 $this->applyPatch( 'patch-textsearch_bug66650.sql', false,
1178 'Rebuilding text search for T68650' );
1179 }
1180 }
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