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Correcting system message linksearch-text
[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 /**
25 * Class for handling updates to Postgres databases.
26 *
27 * @ingroup Deployment
28 * @since 1.17
29 */
30
31 class PostgresUpdater extends DatabaseUpdater {
32
33 /**
34 * @var DatabasePostgres
35 */
36 protected $db;
37
38 /**
39 * @todo FIXME: Postgres should use sequential updates like Mysql, Sqlite
40 * and everybody else. It never got refactored like it should've.
41 * @return array
42 */
43 protected function getCoreUpdateList() {
44 return array(
45 # rename tables 1.7.3
46 # r15791 Change reserved word table names "user" and "text"
47 array( 'renameTable', 'user', 'mwuser' ),
48 array( 'renameTable', 'text', 'pagecontent' ),
49 array( 'renameIndex', 'mwuser', 'user_pkey', 'mwuser_pkey'),
50 array( 'renameIndex', 'mwuser', 'user_user_name_key', 'mwuser_user_name_key' ),
51 array( 'renameIndex', 'pagecontent','text_pkey', 'pagecontent_pkey' ),
52
53 # renamed sequences
54 array( 'renameSequence', 'ipblocks_ipb_id_val', 'ipblocks_ipb_id_seq' ),
55 array( 'renameSequence', 'rev_rev_id_val', 'revision_rev_id_seq' ),
56 array( 'renameSequence', 'text_old_id_val', 'text_old_id_seq' ),
57 array( 'renameSequence', 'rc_rc_id_seq', 'recentchanges_rc_id_seq' ),
58 array( 'renameSequence', 'log_log_id_seq', 'logging_log_id_seq' ),
59 array( 'renameSequence', 'pr_id_val', 'page_restrictions_pr_id_seq' ),
60 array( 'renameSequence', 'us_id_seq', 'uploadstash_us_id_seq' ),
61
62 # since r58263
63 array( 'renameSequence', 'category_id_seq', 'category_cat_id_seq'),
64
65 # new sequences if not renamed above
66 array( 'addSequence', 'logging', false, 'logging_log_id_seq' ),
67 array( 'addSequence', 'page_restrictions', false, 'page_restrictions_pr_id_seq' ),
68 array( 'addSequence', 'filearchive', 'fa_id', 'filearchive_fa_id_seq' ),
69
70 # new tables
71 array( 'addTable', 'category', 'patch-category.sql' ),
72 array( 'addTable', 'page', 'patch-page.sql' ),
73 array( 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ),
74 array( 'addTable', 'page_props', 'patch-page_props.sql' ),
75 array( 'addTable', 'page_restrictions', 'patch-page_restrictions.sql' ),
76 array( 'addTable', 'profiling', 'patch-profiling.sql' ),
77 array( 'addTable', 'protected_titles', 'patch-protected_titles.sql' ),
78 array( 'addTable', 'redirect', 'patch-redirect.sql' ),
79 array( 'addTable', 'updatelog', 'patch-updatelog.sql' ),
80 array( 'addTable', 'change_tag', 'patch-change_tag.sql' ),
81 array( 'addTable', 'tag_summary', 'patch-tag_summary.sql' ),
82 array( 'addTable', 'valid_tag', 'patch-valid_tag.sql' ),
83 array( 'addTable', 'user_properties', 'patch-user_properties.sql' ),
84 array( 'addTable', 'log_search', 'patch-log_search.sql' ),
85 array( 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ),
86 array( 'addTable', 'iwlinks', 'patch-iwlinks.sql' ),
87 array( 'addTable', 'msg_resource', 'patch-msg_resource.sql' ),
88 array( 'addTable', 'msg_resource_links','patch-msg_resource_links.sql' ),
89 array( 'addTable', 'module_deps', 'patch-module_deps.sql' ),
90 array( 'addTable', 'uploadstash', 'patch-uploadstash.sql' ),
91 array( 'addTable', 'user_former_groups','patch-user_former_groups.sql' ),
92 array( 'addTable', 'config', 'patch-config.sql' ),
93 array( 'addTable', 'external_user', 'patch-external_user.sql' ),
94
95 # Needed before new field
96 array( 'convertArchive2' ),
97
98 # new fields
99 array( 'addPgField', 'updatelog', 'ul_value', 'TEXT' ),
100 array( 'addPgField', 'archive', 'ar_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
101 array( 'addPgField', 'archive', 'ar_len', 'INTEGER' ),
102 array( 'addPgField', 'archive', 'ar_page_id', 'INTEGER' ),
103 array( 'addPgField', 'archive', 'ar_parent_id', 'INTEGER' ),
104 array( 'addPgField', 'archive', 'ar_content_model', 'TEXT' ),
105 array( 'addPgField', 'archive', 'ar_content_format', 'TEXT' ),
106 array( 'addPgField', 'categorylinks', 'cl_sortkey_prefix', "TEXT NOT NULL DEFAULT ''"),
107 array( 'addPgField', 'categorylinks', 'cl_collation', "TEXT NOT NULL DEFAULT 0"),
108 array( 'addPgField', 'categorylinks', 'cl_type', "TEXT NOT NULL DEFAULT 'page'"),
109 array( 'addPgField', 'image', 'img_sha1', "TEXT NOT NULL DEFAULT ''" ),
110 array( 'addPgField', 'ipblocks', 'ipb_allow_usertalk', 'SMALLINT NOT NULL DEFAULT 0' ),
111 array( 'addPgField', 'ipblocks', 'ipb_anon_only', 'SMALLINT NOT NULL DEFAULT 0' ),
112 array( 'addPgField', 'ipblocks', 'ipb_by_text', "TEXT NOT NULL DEFAULT ''" ),
113 array( 'addPgField', 'ipblocks', 'ipb_block_email', 'SMALLINT NOT NULL DEFAULT 0' ),
114 array( 'addPgField', 'ipblocks', 'ipb_create_account', 'SMALLINT NOT NULL DEFAULT 1' ),
115 array( 'addPgField', 'ipblocks', 'ipb_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
116 array( 'addPgField', 'ipblocks', 'ipb_enable_autoblock', 'SMALLINT NOT NULL DEFAULT 1' ),
117 array( 'addPgField', 'ipblocks', 'ipb_parent_block_id', 'INTEGER DEFAULT NULL REFERENCES ipblocks(ipb_id) ON DELETE SET NULL DEFERRABLE INITIALLY DEFERRED' ),
118 array( 'addPgField', 'filearchive', 'fa_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
119 array( 'addPgField', 'filearchive', 'fa_sha1', "TEXT NOT NULL DEFAULT ''" ),
120 array( 'addPgField', 'logging', 'log_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
121 array( 'addPgField', 'logging', 'log_id', "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ),
122 array( 'addPgField', 'logging', 'log_params', 'TEXT' ),
123 array( 'addPgField', 'mwuser', 'user_editcount', 'INTEGER' ),
124 array( 'addPgField', 'mwuser', 'user_newpass_time', 'TIMESTAMPTZ' ),
125 array( 'addPgField', 'oldimage', 'oi_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
126 array( 'addPgField', 'oldimage', 'oi_major_mime', "TEXT NOT NULL DEFAULT 'unknown'" ),
127 array( 'addPgField', 'oldimage', 'oi_media_type', 'TEXT' ),
128 array( 'addPgField', 'oldimage', 'oi_metadata', "BYTEA NOT NULL DEFAULT ''" ),
129 array( 'addPgField', 'oldimage', 'oi_minor_mime', "TEXT NOT NULL DEFAULT 'unknown'" ),
130 array( 'addPgField', 'oldimage', 'oi_sha1', "TEXT NOT NULL DEFAULT ''" ),
131 array( 'addPgField', 'page', 'page_content_model', 'TEXT' ),
132 array( 'addPgField', 'page_restrictions', 'pr_id', "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_seq')" ),
133 array( 'addPgField', 'profiling', 'pf_memory', 'NUMERIC(18,10) NOT NULL DEFAULT 0' ),
134 array( 'addPgField', 'recentchanges', 'rc_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
135 array( 'addPgField', 'recentchanges', 'rc_log_action', 'TEXT' ),
136 array( 'addPgField', 'recentchanges', 'rc_log_type', 'TEXT' ),
137 array( 'addPgField', 'recentchanges', 'rc_logid', 'INTEGER NOT NULL DEFAULT 0' ),
138 array( 'addPgField', 'recentchanges', 'rc_new_len', 'INTEGER' ),
139 array( 'addPgField', 'recentchanges', 'rc_old_len', 'INTEGER' ),
140 array( 'addPgField', 'recentchanges', 'rc_params', 'TEXT' ),
141 array( 'addPgField', 'redirect', 'rd_interwiki', 'TEXT NULL' ),
142 array( 'addPgField', 'redirect', 'rd_fragment', 'TEXT NULL' ),
143 array( 'addPgField', 'revision', 'rev_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
144 array( 'addPgField', 'revision', 'rev_len', 'INTEGER' ),
145 array( 'addPgField', 'revision', 'rev_parent_id', 'INTEGER DEFAULT NULL' ),
146 array( 'addPgField', 'revision', 'rev_content_model', 'TEXT' ),
147 array( 'addPgField', 'revision', 'rev_content_format', 'TEXT' ),
148 array( 'addPgField', 'site_stats', 'ss_active_users', "INTEGER DEFAULT '-1'" ),
149 array( 'addPgField', 'user_newtalk', 'user_last_timestamp', 'TIMESTAMPTZ' ),
150 array( 'addPgField', 'logging', 'log_user_text', "TEXT NOT NULL DEFAULT ''" ),
151 array( 'addPgField', 'logging', 'log_page', 'INTEGER' ),
152 array( 'addPgField', 'interwiki', 'iw_api', "TEXT NOT NULL DEFAULT ''"),
153 array( 'addPgField', 'interwiki', 'iw_wikiid', "TEXT NOT NULL DEFAULT ''"),
154 array( 'addPgField', 'revision', 'rev_sha1', "TEXT NOT NULL DEFAULT ''" ),
155 array( 'addPgField', 'archive', 'ar_sha1', "TEXT NOT NULL DEFAULT ''" ),
156 array( 'addPgField', 'uploadstash', 'us_chunk_inx', "INTEGER NULL" ),
157 array( 'addPgField', 'job', 'job_timestamp', "TIMESTAMPTZ" ),
158
159 # type changes
160 array( 'changeField', 'archive', 'ar_deleted', 'smallint', '' ),
161 array( 'changeField', 'archive', 'ar_minor_edit', 'smallint', 'ar_minor_edit::smallint DEFAULT 0' ),
162 array( 'changeField', 'filearchive', 'fa_deleted', 'smallint', '' ),
163 array( 'changeField', 'filearchive', 'fa_height', 'integer', '' ),
164 array( 'changeField', 'filearchive', 'fa_metadata', 'bytea', "decode(fa_metadata,'escape')" ),
165 array( 'changeField', 'filearchive', 'fa_size', 'integer', '' ),
166 array( 'changeField', 'filearchive', 'fa_width', 'integer', '' ),
167 array( 'changeField', 'filearchive', 'fa_storage_group', 'text', '' ),
168 array( 'changeField', 'filearchive', 'fa_storage_key', 'text', '' ),
169 array( 'changeField', 'image', 'img_metadata', 'bytea', "decode(img_metadata,'escape')" ),
170 array( 'changeField', 'image', 'img_size', 'integer', '' ),
171 array( 'changeField', 'image', 'img_width', 'integer', '' ),
172 array( 'changeField', 'image', 'img_height', 'integer', '' ),
173 array( 'changeField', 'interwiki', 'iw_local', 'smallint', 'iw_local::smallint' ),
174 array( 'changeField', 'interwiki', 'iw_trans', 'smallint', 'iw_trans::smallint DEFAULT 0' ),
175 array( 'changeField', 'ipblocks', 'ipb_auto', 'smallint', 'ipb_auto::smallint DEFAULT 0' ),
176 array( 'changeField', 'ipblocks', 'ipb_anon_only', 'smallint', "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ),
177 array( 'changeField', 'ipblocks', 'ipb_create_account', 'smallint', "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ),
178 array( 'changeField', 'ipblocks', 'ipb_enable_autoblock', 'smallint', "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ),
179 array( 'changeField', 'ipblocks', 'ipb_block_email', 'smallint', "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ),
180 array( 'changeField', 'ipblocks', 'ipb_address', 'text', 'ipb_address::text' ),
181 array( 'changeField', 'ipblocks', 'ipb_deleted', 'smallint', 'ipb_deleted::smallint DEFAULT 0' ),
182 array( 'changeField', 'mwuser', 'user_token', 'text', '' ),
183 array( 'changeField', 'mwuser', 'user_email_token', 'text', '' ),
184 array( 'changeField', 'objectcache', 'keyname', 'text', '' ),
185 array( 'changeField', 'oldimage', 'oi_height', 'integer', '' ),
186 array( 'changeField', 'oldimage', 'oi_metadata', 'bytea', "decode(img_metadata,'escape')" ),
187 array( 'changeField', 'oldimage', 'oi_size', 'integer', '' ),
188 array( 'changeField', 'oldimage', 'oi_width', 'integer', '' ),
189 array( 'changeField', 'page', 'page_is_redirect', 'smallint', 'page_is_redirect::smallint DEFAULT 0' ),
190 array( 'changeField', 'page', 'page_is_new', 'smallint', 'page_is_new::smallint DEFAULT 0' ),
191 array( 'changeField', 'querycache', 'qc_value', 'integer', '' ),
192 array( 'changeField', 'querycachetwo', 'qcc_value', 'integer', '' ),
193 array( 'changeField', 'recentchanges', 'rc_bot', 'smallint', 'rc_bot::smallint DEFAULT 0' ),
194 array( 'changeField', 'recentchanges', 'rc_deleted', 'smallint', '' ),
195 array( 'changeField', 'recentchanges', 'rc_minor', 'smallint', 'rc_minor::smallint DEFAULT 0' ),
196 array( 'changeField', 'recentchanges', 'rc_new', 'smallint', 'rc_new::smallint DEFAULT 0' ),
197 array( 'changeField', 'recentchanges', 'rc_type', 'smallint', 'rc_type::smallint DEFAULT 0' ),
198 array( 'changeField', 'recentchanges', 'rc_patrolled', 'smallint', 'rc_patrolled::smallint DEFAULT 0' ),
199 array( 'changeField', 'revision', 'rev_deleted', 'smallint', 'rev_deleted::smallint DEFAULT 0' ),
200 array( 'changeField', 'revision', 'rev_minor_edit', 'smallint', 'rev_minor_edit::smallint DEFAULT 0' ),
201 array( 'changeField', 'templatelinks', 'tl_namespace', 'smallint', 'tl_namespace::smallint' ),
202 array( 'changeField', 'user_newtalk', 'user_ip', 'text', 'host(user_ip)' ),
203 array( 'changeField', 'uploadstash', 'us_image_bits', 'smallint', '' ),
204
205 # null changes
206 array( 'changeNullableField', 'oldimage', 'oi_bits', 'NULL' ),
207 array( 'changeNullableField', 'oldimage', 'oi_timestamp', 'NULL' ),
208 array( 'changeNullableField', 'oldimage', 'oi_major_mime', 'NULL' ),
209 array( 'changeNullableField', 'oldimage', 'oi_minor_mime', 'NULL' ),
210 array( 'changeNullableField', 'image', 'img_metadata', 'NOT NULL'),
211 array( 'changeNullableField', 'filearchive', 'fa_metadata', 'NOT NULL'),
212 array( 'changeNullableField', 'recentchanges', 'rc_cur_id', 'NULL' ),
213
214 array( 'checkOiDeleted' ),
215
216 # New indexes
217 array( 'addPgIndex', 'archive', 'archive_user_text', '(ar_user_text)' ),
218 array( 'addPgIndex', 'image', 'img_sha1', '(img_sha1)' ),
219 array( 'addPgIndex', 'ipblocks', 'ipb_parent_block_id', '(ipb_parent_block_id)' ),
220 array( 'addPgIndex', 'oldimage', 'oi_sha1', '(oi_sha1)' ),
221 array( 'addPgIndex', 'page', 'page_mediawiki_title', '(page_title) WHERE page_namespace = 8' ),
222 array( 'addPgIndex', 'pagelinks', 'pagelinks_title', '(pl_title)' ),
223 array( 'addPgIndex', 'revision', 'rev_text_id_idx', '(rev_text_id)' ),
224 array( 'addPgIndex', 'recentchanges', 'rc_timestamp_bot', '(rc_timestamp) WHERE rc_bot = 0' ),
225 array( 'addPgIndex', 'templatelinks', 'templatelinks_from', '(tl_from)' ),
226 array( 'addPgIndex', 'watchlist', 'wl_user', '(wl_user)' ),
227 array( 'addPgIndex', 'logging', 'logging_user_type_time', '(log_user, log_type, log_timestamp)' ),
228 array( 'addPgIndex', 'logging', 'logging_page_id_time', '(log_page,log_timestamp)' ),
229 array( 'addPgIndex', 'iwlinks', 'iwl_prefix_title_from', '(iwl_prefix, iwl_title, iwl_from)' ),
230 array( 'addPgIndex', 'job', 'job_timestamp_idx', '(job_timestamp)' ),
231 array( 'addPgIndex', 'filearchive', 'fa_sha1', '(fa_sha1)' ),
232
233 array( 'checkIndex', 'pagelink_unique', array(
234 array('pl_from', 'int4_ops', 'btree', 0),
235 array('pl_namespace', 'int2_ops', 'btree', 0),
236 array('pl_title', 'text_ops', 'btree', 0),
237 ),
238 'CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)' ),
239 array( 'checkIndex', 'cl_sortkey', array(
240 array('cl_to', 'text_ops', 'btree', 0),
241 array('cl_sortkey', 'text_ops', 'btree', 0),
242 array('cl_from', 'int4_ops', 'btree', 0),
243 ),
244 'CREATE INDEX cl_sortkey ON "categorylinks" USING "btree" ("cl_to", "cl_sortkey", "cl_from")' ),
245 array( 'checkIndex', 'logging_times', array(
246 array('log_timestamp', 'timestamptz_ops', 'btree', 0),
247 ),
248 'CREATE INDEX "logging_times" ON "logging" USING "btree" ("log_timestamp")' ),
249 array( 'dropIndex', 'oldimage', 'oi_name' ),
250 array( 'checkIndex', 'oi_name_archive_name', array(
251 array('oi_name', 'text_ops', 'btree', 0),
252 array('oi_archive_name', 'text_ops', 'btree', 0),
253 ),
254 'CREATE INDEX "oi_name_archive_name" ON "oldimage" USING "btree" ("oi_name", "oi_archive_name")' ),
255 array( 'checkIndex', 'oi_name_timestamp', array(
256 array('oi_name', 'text_ops', 'btree', 0),
257 array('oi_timestamp', 'timestamptz_ops', 'btree', 0),
258 ),
259 'CREATE INDEX "oi_name_timestamp" ON "oldimage" USING "btree" ("oi_name", "oi_timestamp")' ),
260 array( 'checkIndex', 'page_main_title', array(
261 array('page_title', 'text_pattern_ops', 'btree', 0),
262 ),
263 'CREATE INDEX "page_main_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 0)' ),
264 array( 'checkIndex', 'page_mediawiki_title', array(
265 array('page_title', 'text_pattern_ops', 'btree', 0),
266 ),
267 'CREATE INDEX "page_mediawiki_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 8)' ),
268 array( 'checkIndex', 'page_project_title', array(
269 array('page_title', 'text_pattern_ops', 'btree', 0),
270 ),
271 'CREATE INDEX "page_project_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 4)' ),
272 array( 'checkIndex', 'page_talk_title', array(
273 array('page_title', 'text_pattern_ops', 'btree', 0),
274 ),
275 'CREATE INDEX "page_talk_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 1)' ),
276 array( 'checkIndex', 'page_user_title', array(
277 array('page_title', 'text_pattern_ops', 'btree', 0),
278 ),
279 'CREATE INDEX "page_user_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 2)' ),
280 array( 'checkIndex', 'page_utalk_title', array(
281 array('page_title', 'text_pattern_ops', 'btree', 0),
282 ),
283 'CREATE INDEX "page_utalk_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 3)' ),
284 array( 'checkIndex', 'ts2_page_text', array(
285 array('textvector', 'tsvector_ops', 'gist', 0),
286 ),
287 'CREATE INDEX "ts2_page_text" ON "pagecontent" USING "gist" ("textvector")' ),
288 array( 'checkIndex', 'ts2_page_title', array(
289 array('titlevector', 'tsvector_ops', 'gist', 0),
290 ),
291 'CREATE INDEX "ts2_page_title" ON "page" USING "gist" ("titlevector")' ),
292
293 array( 'checkOiNameConstraint' ),
294 array( 'checkPageDeletedTrigger' ),
295 array( 'checkRevUserFkey' ),
296 array( 'dropIndex', 'ipblocks', 'ipb_address'),
297 array( 'checkIndex', 'ipb_address_unique', array(
298 array('ipb_address', 'text_ops', 'btree', 0),
299 array('ipb_user', 'int4_ops', 'btree', 0),
300 array('ipb_auto', 'int2_ops', 'btree', 0),
301 array('ipb_anon_only', 'int2_ops', 'btree', 0),
302 ),
303 'CREATE UNIQUE INDEX ipb_address_unique ON ipblocks (ipb_address,ipb_user,ipb_auto,ipb_anon_only)' ),
304
305 array( 'checkIwlPrefix' ),
306
307 # All FK columns should be deferred
308 array( 'changeFkeyDeferrable', 'archive', 'ar_user', 'mwuser(user_id) ON DELETE SET NULL' ),
309 array( 'changeFkeyDeferrable', 'categorylinks', 'cl_from', 'page(page_id) ON DELETE CASCADE' ),
310 array( 'changeFkeyDeferrable', 'externallinks', 'el_from', 'page(page_id) ON DELETE CASCADE' ),
311 array( 'changeFkeyDeferrable', 'filearchive', 'fa_deleted_user', 'mwuser(user_id) ON DELETE SET NULL' ),
312 array( 'changeFkeyDeferrable', 'filearchive', 'fa_user', 'mwuser(user_id) ON DELETE SET NULL' ),
313 array( 'changeFkeyDeferrable', 'image', 'img_user', 'mwuser(user_id) ON DELETE SET NULL' ),
314 array( 'changeFkeyDeferrable', 'imagelinks', 'il_from', 'page(page_id) ON DELETE CASCADE' ),
315 array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_by', 'mwuser(user_id) ON DELETE CASCADE' ),
316 array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_user', 'mwuser(user_id) ON DELETE SET NULL' ),
317 array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_parent_block_id', 'ipblocks(ipb_id) ON DELETE SET NULL' ),
318 array( 'changeFkeyDeferrable', 'langlinks', 'll_from', 'page(page_id) ON DELETE CASCADE' ),
319 array( 'changeFkeyDeferrable', 'logging', 'log_user', 'mwuser(user_id) ON DELETE SET NULL' ),
320 array( 'changeFkeyDeferrable', 'oldimage', 'oi_name', 'image(img_name) ON DELETE CASCADE ON UPDATE CASCADE' ),
321 array( 'changeFkeyDeferrable', 'oldimage', 'oi_user', 'mwuser(user_id) ON DELETE SET NULL' ),
322 array( 'changeFkeyDeferrable', 'pagelinks', 'pl_from', 'page(page_id) ON DELETE CASCADE' ),
323 array( 'changeFkeyDeferrable', 'page_props', 'pp_page', 'page (page_id) ON DELETE CASCADE' ),
324 array( 'changeFkeyDeferrable', 'page_restrictions', 'pr_page', 'page(page_id) ON DELETE CASCADE' ),
325 array( 'changeFkeyDeferrable', 'protected_titles', 'pt_user', 'mwuser(user_id) ON DELETE SET NULL' ),
326 array( 'changeFkeyDeferrable', 'recentchanges', 'rc_cur_id', 'page(page_id) ON DELETE SET NULL' ),
327 array( 'changeFkeyDeferrable', 'recentchanges', 'rc_user', 'mwuser(user_id) ON DELETE SET NULL' ),
328 array( 'changeFkeyDeferrable', 'redirect', 'rd_from', 'page(page_id) ON DELETE CASCADE' ),
329 array( 'changeFkeyDeferrable', 'revision', 'rev_page', 'page (page_id) ON DELETE CASCADE' ),
330 array( 'changeFkeyDeferrable', 'revision', 'rev_user', 'mwuser(user_id) ON DELETE RESTRICT' ),
331 array( 'changeFkeyDeferrable', 'templatelinks', 'tl_from', 'page(page_id) ON DELETE CASCADE' ),
332 array( 'changeFkeyDeferrable', 'user_groups', 'ug_user', 'mwuser(user_id) ON DELETE CASCADE' ),
333 array( 'changeFkeyDeferrable', 'user_newtalk', 'user_id', 'mwuser(user_id) ON DELETE CASCADE' ),
334 array( 'changeFkeyDeferrable', 'user_properties', 'up_user', 'mwuser(user_id) ON DELETE CASCADE' ),
335 array( 'changeFkeyDeferrable', 'watchlist', 'wl_user', 'mwuser(user_id) ON DELETE CASCADE' ),
336
337 # r81574
338 array( 'addInterwikiType' ),
339 # end
340 array( 'tsearchFixes' ),
341 );
342 }
343
344 protected function getOldGlobalUpdates() {
345 global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
346
347 $updates = array();
348
349 # Add missing extension tables
350 foreach ( $wgExtNewTables as $tableRecord ) {
351 $updates[] = array(
352 'addTable', $tableRecord[0], $tableRecord[1], true
353 );
354 }
355
356 # Add missing extension fields
357 foreach ( $wgExtPGNewFields as $fieldRecord ) {
358 $updates[] = array(
359 'addPgField', $fieldRecord[0], $fieldRecord[1],
360 $fieldRecord[2]
361 );
362 }
363
364 # Change altered columns
365 foreach ( $wgExtPGAlteredFields as $fieldRecord ) {
366 $updates[] = array(
367 'changeField', $fieldRecord[0], $fieldRecord[1],
368 $fieldRecord[2]
369 );
370 }
371
372 # Add missing extension indexes
373 foreach ( $wgExtNewIndexes as $fieldRecord ) {
374 $updates[] = array(
375 'addPgExtIndex', $fieldRecord[0], $fieldRecord[1],
376 $fieldRecord[2]
377 );
378 }
379
380 return $updates;
381 }
382
383 protected function describeTable( $table ) {
384 $q = <<<END
385 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
386 WHERE pg_class.relnamespace = pg_namespace.oid
387 AND attrelid=pg_class.oid AND attnum > 0
388 AND relname=%s AND nspname=%s
389 END;
390 $res = $this->db->query( sprintf( $q,
391 $this->db->addQuotes( $table ),
392 $this->db->addQuotes( $this->db->getCoreSchema() ) ) );
393 if ( !$res ) {
394 return null;
395 }
396
397 $cols = array();
398 foreach ( $res as $r ) {
399 $cols[] = array(
400 "name" => $r[0],
401 "ord" => $r[1],
402 );
403 }
404 return $cols;
405 }
406
407 function describeIndex( $idx ) {
408 // first fetch the key (which is a list of columns ords) and
409 // the table the index applies to (an oid)
410 $q = <<<END
411 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
412 WHERE nspname=%s
413 AND pg_class.relnamespace = pg_namespace.oid
414 AND relname=%s
415 AND indexrelid=pg_class.oid
416 END;
417 $res = $this->db->query(
418 sprintf(
419 $q,
420 $this->db->addQuotes( $this->db->getCoreSchema() ),
421 $this->db->addQuotes( $idx )
422 )
423 );
424 if ( !$res ) {
425 return null;
426 }
427 if ( !( $r = $this->db->fetchRow( $res ) ) ) {
428 return null;
429 }
430
431 $indkey = $r[0];
432 $relid = intval( $r[1] );
433 $indkeys = explode( ' ', $indkey );
434
435 $colnames = array();
436 foreach ( $indkeys as $rid ) {
437 $query = <<<END
438 SELECT attname FROM pg_class, pg_attribute
439 WHERE attrelid=$relid
440 AND attnum=%d
441 AND attrelid=pg_class.oid
442 END;
443 $r2 = $this->db->query( sprintf( $query, $rid ) );
444 if ( !$r2 ) {
445 return null;
446 }
447 if ( !( $row2 = $this->db->fetchRow( $r2 ) ) ) {
448 return null;
449 }
450 $colnames[] = $row2[0];
451 }
452
453 return $colnames;
454 }
455
456 function fkeyDeltype( $fkey ) {
457 $q = <<<END
458 SELECT confdeltype FROM pg_constraint, pg_namespace
459 WHERE connamespace=pg_namespace.oid
460 AND nspname=%s
461 AND conname=%s;
462 END;
463 $r = $this->db->query(
464 sprintf(
465 $q,
466 $this->db->addQuotes( $this->db->getCoreSchema() ),
467 $this->db->addQuotes( $fkey )
468 )
469 );
470 if ( !( $row = $this->db->fetchRow( $r ) ) ) {
471 return null;
472 }
473 return $row[0];
474 }
475
476 function ruleDef( $table, $rule ) {
477 $q = <<<END
478 SELECT definition FROM pg_rules
479 WHERE schemaname = %s
480 AND tablename = %s
481 AND rulename = %s
482 END;
483 $r = $this->db->query(
484 sprintf(
485 $q,
486 $this->db->addQuotes( $this->db->getCoreSchema() ),
487 $this->db->addQuotes( $table ),
488 $this->db->addQuotes( $rule )
489 )
490 );
491 $row = $this->db->fetchRow( $r );
492 if ( !$row ) {
493 return null;
494 }
495 $d = $row[0];
496 return $d;
497 }
498
499 protected function addSequence( $table, $pkey, $ns ) {
500 if ( !$this->db->sequenceExists( $ns ) ) {
501 $this->output( "Creating sequence $ns\n" );
502 $this->db->query( "CREATE SEQUENCE $ns" );
503 if( $pkey !== false ) {
504 $this->setDefault( $table, $pkey, '"nextval"(\'"' . $ns . '"\'::"regclass")' );
505 }
506 }
507 }
508
509 protected function renameSequence( $old, $new ) {
510 if ( $this->db->sequenceExists( $new ) ) {
511 $this->output( "...sequence $new already exists.\n" );
512 return;
513 }
514 if ( $this->db->sequenceExists( $old ) ) {
515 $this->output( "Renaming sequence $old to $new\n" );
516 $this->db->query( "ALTER SEQUENCE $old RENAME TO $new" );
517 }
518 }
519
520 protected function renameTable( $old, $new, $patch = false ) {
521 if ( $this->db->tableExists( $old ) ) {
522 $this->output( "Renaming table $old to $new\n" );
523 $old = $this->db->realTableName( $old, "quoted" );
524 $new = $this->db->realTableName( $new, "quoted" );
525 $this->db->query( "ALTER TABLE $old RENAME TO $new" );
526 if( $patch !== false ) {
527 $this->applyPatch( $patch );
528 }
529 }
530 }
531
532 protected function renameIndex( $table, $old, $new ) {
533 if ( $this->db->indexExists( $table, $old ) ) {
534 $this->output( "Renaming index $old to $new\n" );
535 $this->db->query( "ALTER INDEX $old RENAME TO $new" );
536 }
537 }
538
539 protected function addPgField( $table, $field, $type ) {
540 $fi = $this->db->fieldInfo( $table, $field );
541 if ( !is_null( $fi ) ) {
542 $this->output( "...column '$table.$field' already exists\n" );
543 return;
544 } else {
545 $this->output( "Adding column '$table.$field'\n" );
546 $this->db->query( "ALTER TABLE $table ADD $field $type" );
547 }
548 }
549
550 protected function changeField( $table, $field, $newtype, $default ) {
551 $fi = $this->db->fieldInfo( $table, $field );
552 if ( is_null( $fi ) ) {
553 $this->output( "...ERROR: expected column $table.$field to exist\n" );
554 exit( 1 );
555 }
556
557 if ( $fi->type() === $newtype )
558 $this->output( "...column '$table.$field' is already of type '$newtype'\n" );
559 else {
560 $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" );
561 $sql = "ALTER TABLE $table ALTER $field TYPE $newtype";
562 if ( strlen( $default ) ) {
563 $res = array();
564 if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) {
565 $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]";
566 $this->db->query( $sqldef );
567 $default = preg_replace( '/\s*DEFAULT .+/', '', $default );
568 }
569 $sql .= " USING $default";
570 }
571 $this->db->query( $sql );
572 }
573 }
574
575 protected function setDefault( $table, $field, $default ) {
576
577 $info = $this->db->fieldInfo( $table, $field );
578 if ( $info->defaultValue() !== $default ) {
579 $this->output( "Changing '$table.$field' default value\n" );
580 $this->db->query( "ALTER TABLE $table ALTER $field SET DEFAULT " . $default );
581 }
582 }
583
584 protected function changeNullableField( $table, $field, $null) {
585 $fi = $this->db->fieldInfo( $table, $field );
586 if ( is_null( $fi ) ) {
587 $this->output( "...ERROR: expected column $table.$field to exist\n" );
588 exit( 1 );
589 }
590 if ( $fi->isNullable() ) {
591 # # It's NULL - does it need to be NOT NULL?
592 if ( 'NOT NULL' === $null ) {
593 $this->output( "Changing '$table.$field' to not allow NULLs\n" );
594 $this->db->query( "ALTER TABLE $table ALTER $field SET NOT NULL" );
595 } else {
596 $this->output( "...column '$table.$field' is already set as NULL\n" );
597 }
598 } else {
599 # # It's NOT NULL - does it need to be NULL?
600 if ( 'NULL' === $null ) {
601 $this->output( "Changing '$table.$field' to allow NULLs\n" );
602 $this->db->query( "ALTER TABLE $table ALTER $field DROP NOT NULL" );
603 }
604 else {
605 $this->output( "...column '$table.$field' is already set as NOT NULL\n" );
606 }
607 }
608 }
609
610 public function addPgIndex( $table, $index, $type ) {
611 if ( $this->db->indexExists( $table, $index ) ) {
612 $this->output( "...index '$index' on table '$table' already exists\n" );
613 } else {
614 $this->output( "Creating index '$index' on table '$table' $type\n" );
615 $this->db->query( "CREATE INDEX $index ON $table $type" );
616 }
617 }
618
619 public function addPgExtIndex( $table, $index, $type ) {
620 if ( $this->db->indexExists( $table, $index ) ) {
621 $this->output( "...index '$index' on table '$table' already exists\n" );
622 } else {
623 if ( preg_match( '/^\(/', $type ) ) {
624 $this->output( "Creating index '$index' on table '$table'\n" );
625 $this->db->query( "CREATE INDEX $index ON $table $type" );
626 } else {
627 $this->applyPatch( $type, true, "Creating index '$index' on table '$table'" );
628 }
629 }
630 }
631
632 protected function changeFkeyDeferrable( $table, $field, $clause ) {
633 $fi = $this->db->fieldInfo( $table, $field );
634 if ( is_null( $fi ) ) {
635 $this->output( "WARNING! Column '$table.$field' does not exist but it should! Please report this.\n" );
636 return;
637 }
638 if ( $fi->is_deferred() && $fi->is_deferrable() ) {
639 return;
640 }
641 $this->output( "Altering column '$table.$field' to be DEFERRABLE INITIALLY DEFERRED\n" );
642 $conname = $fi->conname();
643 if ( $fi->conname() ) {
644 $conclause = "CONSTRAINT \"$conname\"";
645 $command = "ALTER TABLE $table DROP CONSTRAINT $conname";
646 $this->db->query( $command );
647 } else {
648 $this->output( "Column '$table.$field' does not have a foreign key constraint, will be added\n" );
649 $conclause = "";
650 }
651 $command = "ALTER TABLE $table ADD $conclause FOREIGN KEY ($field) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
652 $this->db->query( $command );
653 }
654
655 protected function convertArchive2() {
656 if ( $this->db->tableExists( "archive2" ) ) {
657 if ( $this->db->ruleExists( 'archive', 'archive_insert' ) ) {
658 $this->output( "Dropping rule 'archive_insert'\n" );
659 $this->db->query( 'DROP RULE archive_insert ON archive' );
660 }
661 if ( $this->db->ruleExists( 'archive', 'archive_delete' ) ) {
662 $this->output( "Dropping rule 'archive_delete'\n" );
663 $this->db->query( 'DROP RULE archive_delete ON archive' );
664 }
665 $this->applyPatch( 'patch-remove-archive2.sql', false, "Converting 'archive2' back to normal archive table" );
666 } else {
667 $this->output( "...obsolete table 'archive2' does not exist\n" );
668 }
669 }
670
671 protected function checkOiDeleted() {
672 if ( $this->db->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) {
673 $this->output( "Changing 'oldimage.oi_deleted' to type 'smallint'\n" );
674 $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
675 $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
676 $this->db->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
677 } else {
678 $this->output( "...column 'oldimage.oi_deleted' is already of type 'smallint'\n" );
679 }
680 }
681
682 protected function checkOiNameConstraint() {
683 if ( $this->db->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
684 $this->output( "...table 'oldimage' has correct cascading delete/update foreign key to image\n" );
685 } else {
686 if ( $this->db->hasConstraint( "oldimage_oi_name_fkey" ) ) {
687 $this->db->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
688 }
689 if ( $this->db->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
690 $this->db->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
691 }
692 $this->output( "Making foreign key on table 'oldimage' (to image) a cascade delete/update\n" );
693 $this->db->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
694 "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" );
695 }
696 }
697
698 protected function checkPageDeletedTrigger() {
699 if ( !$this->db->triggerExists( 'page', 'page_deleted' ) ) {
700 $this->applyPatch( 'patch-page_deleted.sql', false, "Adding function and trigger 'page_deleted' to table 'page'" );
701 } else {
702 $this->output( "...table 'page' has 'page_deleted' trigger\n" );
703 }
704 }
705
706 protected function dropIndex( $table, $index, $patch = '', $fullpath = false ) {
707 if ( $this->db->indexExists( $table, $index ) ) {
708 $this->output( "Dropping obsolete index '$index'\n" );
709 $this->db->query( "DROP INDEX \"". $index ."\"" );
710 }
711 }
712
713 protected function checkIndex( $index, $should_be, $good_def ) {
714 $pu = $this->db->indexAttributes( $index );
715 if ( !empty( $pu ) && $pu != $should_be ) {
716 $this->output( "Dropping obsolete version of index '$index'\n" );
717 $this->db->query( "DROP INDEX \"". $index ."\"" );
718 $pu = array();
719 } else {
720 $this->output( "...no need to drop index '$index'\n" );
721 }
722
723 if ( empty( $pu ) ) {
724 $this->output( "Creating index '$index'\n" );
725 $this->db->query( $good_def );
726 } else {
727 $this->output( "...index '$index' exists\n" );
728 }
729 }
730
731 protected function checkRevUserFkey() {
732 if ( $this->fkeyDeltype( 'revision_rev_user_fkey' ) == 'r' ) {
733 $this->output( "...constraint 'revision_rev_user_fkey' is ON DELETE RESTRICT\n" );
734 } else {
735 $this->applyPatch( 'patch-revision_rev_user_fkey.sql', false, "Changing constraint 'revision_rev_user_fkey' to ON DELETE RESTRICT" );
736 }
737 }
738
739 protected function checkIwlPrefix() {
740 if ( $this->db->indexExists( 'iwlinks', 'iwl_prefix' ) ) {
741 $this->applyPatch( 'patch-rename-iwl_prefix.sql', false, "Replacing index 'iwl_prefix' with 'iwl_prefix_from_title'" );
742 }
743 }
744
745 protected function addInterwikiType() {
746 $this->applyPatch( 'patch-add_interwiki.sql', false, "Refreshing add_interwiki()" );
747 }
748
749 protected function tsearchFixes() {
750 # Tweak the page_title tsearch2 trigger to filter out slashes
751 # This is create or replace, so harmless to call if not needed
752 $this->applyPatch( 'patch-ts2pagetitle.sql', false, "Refreshing ts2_page_title()" );
753
754 # If the server is 8.3 or higher, rewrite the tsearch2 triggers
755 # in case they have the old 'default' versions
756 # Gather version numbers in case we need them
757 if ( $this->db->getServerVersion() >= 8.3 ) {
758 $this->applyPatch( 'patch-tsearch2funcs.sql', false, "Rewriting tsearch2 triggers" );
759 }
760 }
761 }
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