3 * PostgreSQL-specific updater.
10 * Class for handling updates to Postgres databases.
16 class PostgresUpdater
extends DatabaseUpdater
{
19 * @var DatabasePostgres
24 * @todo FIXME: Postgres should use sequential updates like Mysql, Sqlite
25 * and everybody else. It never got refactored like it should've.
28 protected function getCoreUpdateList() {
31 # r15791 Change reserved word table names "user" and "text"
32 array( 'renameTable', 'user', 'mwuser' ),
33 array( 'renameTable', 'text', 'pagecontent' ),
34 array( 'renameIndex', 'mwuser', 'user_pkey', 'mwuser_pkey'),
35 array( 'renameIndex', 'mwuser', 'user_user_name_key', 'mwuser_user_name_key' ),
36 array( 'renameIndex', 'pagecontent','text_pkey', 'pagecontent_pkey' ),
39 array( 'renameSequence', 'ipblocks_ipb_id_val', 'ipblocks_ipb_id_seq' ),
40 array( 'renameSequence', 'rev_rev_id_val', 'revision_rev_id_seq' ),
41 array( 'renameSequence', 'text_old_id_val', 'text_old_id_seq' ),
42 array( 'renameSequence', 'rc_rc_id_seq', 'recentchanges_rc_id_seq' ),
43 array( 'renameSequence', 'log_log_id_seq', 'logging_log_id_seq' ),
44 array( 'renameSequence', 'pr_id_val', 'page_restrictions_pr_id_seq' ),
45 array( 'renameSequence', 'us_id_seq', 'uploadstash_us_id_seq' ),
48 array( 'renameSequence', 'category_id_seq', 'category_cat_id_seq'),
50 # new sequences if not renamed above
51 array( 'addSequence', 'logging', false, 'logging_log_id_seq' ),
52 array( 'addSequence', 'page_restrictions', false, 'page_restrictions_pr_id_seq' ),
53 array( 'addSequence', 'filearchive', 'fa_id', 'filearchive_fa_id_seq' ),
56 array( 'addTable', 'category', 'patch-category.sql' ),
57 array( 'addTable', 'page', 'patch-page.sql' ),
58 array( 'addTable', 'querycachetwo', 'patch-querycachetwo.sql' ),
59 array( 'addTable', 'page_props', 'patch-page_props.sql' ),
60 array( 'addTable', 'page_restrictions', 'patch-page_restrictions.sql' ),
61 array( 'addTable', 'profiling', 'patch-profiling.sql' ),
62 array( 'addTable', 'protected_titles', 'patch-protected_titles.sql' ),
63 array( 'addTable', 'redirect', 'patch-redirect.sql' ),
64 array( 'addTable', 'updatelog', 'patch-updatelog.sql' ),
65 array( 'addTable', 'change_tag', 'patch-change_tag.sql' ),
66 array( 'addTable', 'tag_summary', 'patch-tag_summary.sql' ),
67 array( 'addTable', 'valid_tag', 'patch-valid_tag.sql' ),
68 array( 'addTable', 'user_properties', 'patch-user_properties.sql' ),
69 array( 'addTable', 'log_search', 'patch-log_search.sql' ),
70 array( 'addTable', 'l10n_cache', 'patch-l10n_cache.sql' ),
71 array( 'addTable', 'iwlinks', 'patch-iwlinks.sql' ),
72 array( 'addTable', 'msg_resource', 'patch-msg_resource.sql' ),
73 array( 'addTable', 'msg_resource_links','patch-msg_resource_links.sql' ),
74 array( 'addTable', 'module_deps', 'patch-module_deps.sql' ),
75 array( 'addTable', 'uploadstash', 'patch-uploadstash.sql' ),
76 array( 'addTable', 'user_former_groups','patch-user_former_groups.sql' ),
77 array( 'addTable', 'config', 'patch-config.sql' ),
78 array( 'addTable', 'external_user', 'patch-external_user.sql' ),
80 # Needed before new field
81 array( 'convertArchive2' ),
84 array( 'addPgField', 'updatelog', 'ul_value', 'TEXT' ),
85 array( 'addPgField', 'archive', 'ar_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
86 array( 'addPgField', 'archive', 'ar_len', 'INTEGER' ),
87 array( 'addPgField', 'archive', 'ar_page_id', 'INTEGER' ),
88 array( 'addPgField', 'archive', 'ar_parent_id', 'INTEGER' ),
89 array( 'addPgField', 'categorylinks', 'cl_sortkey_prefix', "TEXT NOT NULL DEFAULT ''"),
90 array( 'addPgField', 'categorylinks', 'cl_collation', "TEXT NOT NULL DEFAULT 0"),
91 array( 'addPgField', 'categorylinks', 'cl_type', "TEXT NOT NULL DEFAULT 'page'"),
92 array( 'addPgField', 'image', 'img_sha1', "TEXT NOT NULL DEFAULT ''" ),
93 array( 'addPgField', 'ipblocks', 'ipb_allow_usertalk', 'SMALLINT NOT NULL DEFAULT 0' ),
94 array( 'addPgField', 'ipblocks', 'ipb_anon_only', 'SMALLINT NOT NULL DEFAULT 0' ),
95 array( 'addPgField', 'ipblocks', 'ipb_by_text', "TEXT NOT NULL DEFAULT ''" ),
96 array( 'addPgField', 'ipblocks', 'ipb_block_email', 'SMALLINT NOT NULL DEFAULT 0' ),
97 array( 'addPgField', 'ipblocks', 'ipb_create_account', 'SMALLINT NOT NULL DEFAULT 1' ),
98 array( 'addPgField', 'ipblocks', 'ipb_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
99 array( 'addPgField', 'ipblocks', 'ipb_enable_autoblock', 'SMALLINT NOT NULL DEFAULT 1' ),
100 array( 'addPgField', 'filearchive', 'fa_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
101 array( 'addPgField', 'logging', 'log_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
102 array( 'addPgField', 'logging', 'log_id', "INTEGER NOT NULL PRIMARY KEY DEFAULT nextval('logging_log_id_seq')" ),
103 array( 'addPgField', 'logging', 'log_params', 'TEXT' ),
104 array( 'addPgField', 'mwuser', 'user_editcount', 'INTEGER' ),
105 array( 'addPgField', 'mwuser', 'user_newpass_time', 'TIMESTAMPTZ' ),
106 array( 'addPgField', 'oldimage', 'oi_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
107 array( 'addPgField', 'oldimage', 'oi_major_mime', "TEXT NOT NULL DEFAULT 'unknown'" ),
108 array( 'addPgField', 'oldimage', 'oi_media_type', 'TEXT' ),
109 array( 'addPgField', 'oldimage', 'oi_metadata', "BYTEA NOT NULL DEFAULT ''" ),
110 array( 'addPgField', 'oldimage', 'oi_minor_mime', "TEXT NOT NULL DEFAULT 'unknown'" ),
111 array( 'addPgField', 'oldimage', 'oi_sha1', "TEXT NOT NULL DEFAULT ''" ),
112 array( 'addPgField', 'page_restrictions', 'pr_id', "INTEGER NOT NULL UNIQUE DEFAULT nextval('page_restrictions_pr_id_seq')" ),
113 array( 'addPgField', 'profiling', 'pf_memory', 'NUMERIC(18,10) NOT NULL DEFAULT 0' ),
114 array( 'addPgField', 'recentchanges', 'rc_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
115 array( 'addPgField', 'recentchanges', 'rc_log_action', 'TEXT' ),
116 array( 'addPgField', 'recentchanges', 'rc_log_type', 'TEXT' ),
117 array( 'addPgField', 'recentchanges', 'rc_logid', 'INTEGER NOT NULL DEFAULT 0' ),
118 array( 'addPgField', 'recentchanges', 'rc_new_len', 'INTEGER' ),
119 array( 'addPgField', 'recentchanges', 'rc_old_len', 'INTEGER' ),
120 array( 'addPgField', 'recentchanges', 'rc_params', 'TEXT' ),
121 array( 'addPgField', 'redirect', 'rd_interwiki', 'TEXT NULL' ),
122 array( 'addPgField', 'redirect', 'rd_fragment', 'TEXT NULL' ),
123 array( 'addPgField', 'revision', 'rev_deleted', 'SMALLINT NOT NULL DEFAULT 0' ),
124 array( 'addPgField', 'revision', 'rev_len', 'INTEGER' ),
125 array( 'addPgField', 'revision', 'rev_parent_id', 'INTEGER DEFAULT NULL' ),
126 array( 'addPgField', 'site_stats', 'ss_active_users', "INTEGER DEFAULT '-1'" ),
127 array( 'addPgField', 'user_newtalk', 'user_last_timestamp', 'TIMESTAMPTZ' ),
128 array( 'addPgField', 'logging', 'log_user_text', "TEXT NOT NULL DEFAULT ''" ),
129 array( 'addPgField', 'logging', 'log_page', 'INTEGER' ),
130 array( 'addPgField', 'interwiki', 'iw_api', "TEXT NOT NULL DEFAULT ''"),
131 array( 'addPgField', 'interwiki', 'iw_wikiid', "TEXT NOT NULL DEFAULT ''"),
132 array( 'addPgField', 'revision', 'rev_sha1', "TEXT NOT NULL DEFAULT ''" ),
133 array( 'addPgField', 'archive', 'ar_sha1', "TEXT NOT NULL DEFAULT ''" ),
134 array( 'addPgField', 'uploadstash', 'us_chunk_inx', "INTEGER NULL" ),
135 array( 'addPgField', 'job', 'job_timestamp', "TIMESTAMPTZ" ),
138 array( 'changeField', 'archive', 'ar_deleted', 'smallint', '' ),
139 array( 'changeField', 'archive', 'ar_minor_edit', 'smallint', 'ar_minor_edit::smallint DEFAULT 0' ),
140 array( 'changeField', 'filearchive', 'fa_deleted', 'smallint', '' ),
141 array( 'changeField', 'filearchive', 'fa_height', 'integer', '' ),
142 array( 'changeField', 'filearchive', 'fa_metadata', 'bytea', "decode(fa_metadata,'escape')" ),
143 array( 'changeField', 'filearchive', 'fa_size', 'integer', '' ),
144 array( 'changeField', 'filearchive', 'fa_width', 'integer', '' ),
145 array( 'changeField', 'filearchive', 'fa_storage_group', 'text', '' ),
146 array( 'changeField', 'filearchive', 'fa_storage_key', 'text', '' ),
147 array( 'changeField', 'image', 'img_metadata', 'bytea', "decode(img_metadata,'escape')" ),
148 array( 'changeField', 'image', 'img_size', 'integer', '' ),
149 array( 'changeField', 'image', 'img_width', 'integer', '' ),
150 array( 'changeField', 'image', 'img_height', 'integer', '' ),
151 array( 'changeField', 'interwiki', 'iw_local', 'smallint', 'iw_local::smallint' ),
152 array( 'changeField', 'interwiki', 'iw_trans', 'smallint', 'iw_trans::smallint DEFAULT 0' ),
153 array( 'changeField', 'ipblocks', 'ipb_auto', 'smallint', 'ipb_auto::smallint DEFAULT 0' ),
154 array( 'changeField', 'ipblocks', 'ipb_anon_only', 'smallint', "CASE WHEN ipb_anon_only=' ' THEN 0 ELSE ipb_anon_only::smallint END DEFAULT 0" ),
155 array( 'changeField', 'ipblocks', 'ipb_create_account', 'smallint', "CASE WHEN ipb_create_account=' ' THEN 0 ELSE ipb_create_account::smallint END DEFAULT 1" ),
156 array( 'changeField', 'ipblocks', 'ipb_enable_autoblock', 'smallint', "CASE WHEN ipb_enable_autoblock=' ' THEN 0 ELSE ipb_enable_autoblock::smallint END DEFAULT 1" ),
157 array( 'changeField', 'ipblocks', 'ipb_block_email', 'smallint', "CASE WHEN ipb_block_email=' ' THEN 0 ELSE ipb_block_email::smallint END DEFAULT 0" ),
158 array( 'changeField', 'ipblocks', 'ipb_address', 'text', 'ipb_address::text' ),
159 array( 'changeField', 'ipblocks', 'ipb_deleted', 'smallint', 'ipb_deleted::smallint DEFAULT 0' ),
160 array( 'changeField', 'mwuser', 'user_token', 'text', '' ),
161 array( 'changeField', 'mwuser', 'user_email_token', 'text', '' ),
162 array( 'changeField', 'objectcache', 'keyname', 'text', '' ),
163 array( 'changeField', 'oldimage', 'oi_height', 'integer', '' ),
164 array( 'changeField', 'oldimage', 'oi_metadata', 'bytea', "decode(img_metadata,'escape')" ),
165 array( 'changeField', 'oldimage', 'oi_size', 'integer', '' ),
166 array( 'changeField', 'oldimage', 'oi_width', 'integer', '' ),
167 array( 'changeField', 'page', 'page_is_redirect', 'smallint', 'page_is_redirect::smallint DEFAULT 0' ),
168 array( 'changeField', 'page', 'page_is_new', 'smallint', 'page_is_new::smallint DEFAULT 0' ),
169 array( 'changeField', 'querycache', 'qc_value', 'integer', '' ),
170 array( 'changeField', 'querycachetwo', 'qcc_value', 'integer', '' ),
171 array( 'changeField', 'recentchanges', 'rc_bot', 'smallint', 'rc_bot::smallint DEFAULT 0' ),
172 array( 'changeField', 'recentchanges', 'rc_deleted', 'smallint', '' ),
173 array( 'changeField', 'recentchanges', 'rc_minor', 'smallint', 'rc_minor::smallint DEFAULT 0' ),
174 array( 'changeField', 'recentchanges', 'rc_new', 'smallint', 'rc_new::smallint DEFAULT 0' ),
175 array( 'changeField', 'recentchanges', 'rc_type', 'smallint', 'rc_type::smallint DEFAULT 0' ),
176 array( 'changeField', 'recentchanges', 'rc_patrolled', 'smallint', 'rc_patrolled::smallint DEFAULT 0' ),
177 array( 'changeField', 'revision', 'rev_deleted', 'smallint', 'rev_deleted::smallint DEFAULT 0' ),
178 array( 'changeField', 'revision', 'rev_minor_edit', 'smallint', 'rev_minor_edit::smallint DEFAULT 0' ),
179 array( 'changeField', 'templatelinks', 'tl_namespace', 'smallint', 'tl_namespace::smallint' ),
180 array( 'changeField', 'user_newtalk', 'user_ip', 'text', 'host(user_ip)' ),
181 array( 'changeField', 'uploadstash', 'us_image_bits', 'smallint', '' ),
184 array( 'changeNullableField', 'oldimage', 'oi_bits', 'NULL' ),
185 array( 'changeNullableField', 'oldimage', 'oi_timestamp', 'NULL' ),
186 array( 'changeNullableField', 'oldimage', 'oi_major_mime', 'NULL' ),
187 array( 'changeNullableField', 'oldimage', 'oi_minor_mime', 'NULL' ),
188 array( 'changeNullableField', 'image', 'img_metadata', 'NOT NULL'),
189 array( 'changeNullableField', 'filearchive', 'fa_metadata', 'NOT NULL'),
190 array( 'changeNullableField', 'recentchanges', 'rc_cur_id', 'NULL' ),
192 array( 'checkOiDeleted' ),
195 array( 'addPgIndex', 'archive', 'archive_user_text', '(ar_user_text)' ),
196 array( 'addPgIndex', 'image', 'img_sha1', '(img_sha1)' ),
197 array( 'addPgIndex', 'oldimage', 'oi_sha1', '(oi_sha1)' ),
198 array( 'addPgIndex', 'page', 'page_mediawiki_title', '(page_title) WHERE page_namespace = 8' ),
199 array( 'addPgIndex', 'pagelinks', 'pagelinks_title', '(pl_title)' ),
200 array( 'addPgIndex', 'revision', 'rev_text_id_idx', '(rev_text_id)' ),
201 array( 'addPgIndex', 'recentchanges', 'rc_timestamp_bot', '(rc_timestamp) WHERE rc_bot = 0' ),
202 array( 'addPgIndex', 'templatelinks', 'templatelinks_from', '(tl_from)' ),
203 array( 'addPgIndex', 'watchlist', 'wl_user', '(wl_user)' ),
204 array( 'addPgIndex', 'logging', 'logging_user_type_time', '(log_user, log_type, log_timestamp)' ),
205 array( 'addPgIndex', 'logging', 'logging_page_id_time', '(log_page,log_timestamp)' ),
206 array( 'addPgIndex', 'iwlinks', 'iwl_prefix_title_from', '(iwl_prefix, iwl_title, iwl_from)' ),
207 array( 'addPgIndex', 'job', 'job_timestamp_idx', '(job_timestamp)' ),
209 array( 'checkIndex', 'pagelink_unique', array(
210 array('pl_from', 'int4_ops', 'btree', 0),
211 array('pl_namespace', 'int2_ops', 'btree', 0),
212 array('pl_title', 'text_ops', 'btree', 0),
214 'CREATE UNIQUE INDEX pagelink_unique ON pagelinks (pl_from,pl_namespace,pl_title)' ),
215 array( 'checkIndex', 'cl_sortkey', array(
216 array('cl_to', 'text_ops', 'btree', 0),
217 array('cl_sortkey', 'text_ops', 'btree', 0),
218 array('cl_from', 'int4_ops', 'btree', 0),
220 'CREATE INDEX cl_sortkey ON "categorylinks" USING "btree" ("cl_to", "cl_sortkey", "cl_from")' ),
221 array( 'checkIndex', 'logging_times', array(
222 array('log_timestamp', 'timestamptz_ops', 'btree', 0),
224 'CREATE INDEX "logging_times" ON "logging" USING "btree" ("log_timestamp")' ),
225 array( 'dropIndex', 'oldimage', 'oi_name' ),
226 array( 'checkIndex', 'oi_name_archive_name', array(
227 array('oi_name', 'text_ops', 'btree', 0),
228 array('oi_archive_name', 'text_ops', 'btree', 0),
230 'CREATE INDEX "oi_name_archive_name" ON "oldimage" USING "btree" ("oi_name", "oi_archive_name")' ),
231 array( 'checkIndex', 'oi_name_timestamp', array(
232 array('oi_name', 'text_ops', 'btree', 0),
233 array('oi_timestamp', 'timestamptz_ops', 'btree', 0),
235 'CREATE INDEX "oi_name_timestamp" ON "oldimage" USING "btree" ("oi_name", "oi_timestamp")' ),
236 array( 'checkIndex', 'page_main_title', array(
237 array('page_title', 'text_pattern_ops', 'btree', 0),
239 'CREATE INDEX "page_main_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 0)' ),
240 array( 'checkIndex', 'page_mediawiki_title', array(
241 array('page_title', 'text_pattern_ops', 'btree', 0),
243 'CREATE INDEX "page_mediawiki_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 8)' ),
244 array( 'checkIndex', 'page_project_title', array(
245 array('page_title', 'text_pattern_ops', 'btree', 0),
247 'CREATE INDEX "page_project_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 4)' ),
248 array( 'checkIndex', 'page_talk_title', array(
249 array('page_title', 'text_pattern_ops', 'btree', 0),
251 'CREATE INDEX "page_talk_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 1)' ),
252 array( 'checkIndex', 'page_user_title', array(
253 array('page_title', 'text_pattern_ops', 'btree', 0),
255 'CREATE INDEX "page_user_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 2)' ),
256 array( 'checkIndex', 'page_utalk_title', array(
257 array('page_title', 'text_pattern_ops', 'btree', 0),
259 'CREATE INDEX "page_utalk_title" ON "page" USING "btree" ("page_title" "text_pattern_ops") WHERE ("page_namespace" = 3)' ),
260 array( 'checkIndex', 'ts2_page_text', array(
261 array('textvector', 'tsvector_ops', 'gist', 0),
263 'CREATE INDEX "ts2_page_text" ON "pagecontent" USING "gist" ("textvector")' ),
264 array( 'checkIndex', 'ts2_page_title', array(
265 array('titlevector', 'tsvector_ops', 'gist', 0),
267 'CREATE INDEX "ts2_page_title" ON "page" USING "gist" ("titlevector")' ),
269 array( 'checkOiNameConstraint' ),
270 array( 'checkPageDeletedTrigger' ),
271 array( 'checkRevUserFkey' ),
272 array( 'dropIndex', 'ipblocks', 'ipb_address'),
273 array( 'checkIndex', 'ipb_address_unique', array(
274 array('ipb_address', 'text_ops', 'btree', 0),
275 array('ipb_user', 'int4_ops', 'btree', 0),
276 array('ipb_auto', 'int2_ops', 'btree', 0),
277 array('ipb_anon_only', 'int2_ops', 'btree', 0),
279 'CREATE UNIQUE INDEX ipb_address_unique ON ipblocks (ipb_address,ipb_user,ipb_auto,ipb_anon_only)' ),
281 array( 'checkIwlPrefix' ),
283 # All FK columns should be deferred
284 array( 'changeFkeyDeferrable', 'archive', 'ar_user', 'mwuser(user_id) ON DELETE SET NULL' ),
285 array( 'changeFkeyDeferrable', 'categorylinks', 'cl_from', 'page(page_id) ON DELETE CASCADE' ),
286 array( 'changeFkeyDeferrable', 'externallinks', 'el_from', 'page(page_id) ON DELETE CASCADE' ),
287 array( 'changeFkeyDeferrable', 'filearchive', 'fa_deleted_user', 'mwuser(user_id) ON DELETE SET NULL' ),
288 array( 'changeFkeyDeferrable', 'filearchive', 'fa_user', 'mwuser(user_id) ON DELETE SET NULL' ),
289 array( 'changeFkeyDeferrable', 'image', 'img_user', 'mwuser(user_id) ON DELETE SET NULL' ),
290 array( 'changeFkeyDeferrable', 'imagelinks', 'il_from', 'page(page_id) ON DELETE CASCADE' ),
291 array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_by', 'mwuser(user_id) ON DELETE CASCADE' ),
292 array( 'changeFkeyDeferrable', 'ipblocks', 'ipb_user', 'mwuser(user_id) ON DELETE SET NULL' ),
293 array( 'changeFkeyDeferrable', 'langlinks', 'll_from', 'page(page_id) ON DELETE CASCADE' ),
294 array( 'changeFkeyDeferrable', 'logging', 'log_user', 'mwuser(user_id) ON DELETE SET NULL' ),
295 array( 'changeFkeyDeferrable', 'oldimage', 'oi_name', 'image(img_name) ON DELETE CASCADE ON UPDATE CASCADE' ),
296 array( 'changeFkeyDeferrable', 'oldimage', 'oi_user', 'mwuser(user_id) ON DELETE SET NULL' ),
297 array( 'changeFkeyDeferrable', 'pagelinks', 'pl_from', 'page(page_id) ON DELETE CASCADE' ),
298 array( 'changeFkeyDeferrable', 'page_props', 'pp_page', 'page (page_id) ON DELETE CASCADE' ),
299 array( 'changeFkeyDeferrable', 'page_restrictions', 'pr_page', 'page(page_id) ON DELETE CASCADE' ),
300 array( 'changeFkeyDeferrable', 'protected_titles', 'pt_user', 'mwuser(user_id) ON DELETE SET NULL' ),
301 array( 'changeFkeyDeferrable', 'recentchanges', 'rc_cur_id', 'page(page_id) ON DELETE SET NULL' ),
302 array( 'changeFkeyDeferrable', 'recentchanges', 'rc_user', 'mwuser(user_id) ON DELETE SET NULL' ),
303 array( 'changeFkeyDeferrable', 'redirect', 'rd_from', 'page(page_id) ON DELETE CASCADE' ),
304 array( 'changeFkeyDeferrable', 'revision', 'rev_page', 'page (page_id) ON DELETE CASCADE' ),
305 array( 'changeFkeyDeferrable', 'revision', 'rev_user', 'mwuser(user_id) ON DELETE RESTRICT' ),
306 array( 'changeFkeyDeferrable', 'templatelinks', 'tl_from', 'page(page_id) ON DELETE CASCADE' ),
307 array( 'changeFkeyDeferrable', 'user_groups', 'ug_user', 'mwuser(user_id) ON DELETE CASCADE' ),
308 array( 'changeFkeyDeferrable', 'user_newtalk', 'user_id', 'mwuser(user_id) ON DELETE CASCADE' ),
309 array( 'changeFkeyDeferrable', 'user_properties', 'up_user', 'mwuser(user_id) ON DELETE CASCADE' ),
310 array( 'changeFkeyDeferrable', 'watchlist', 'wl_user', 'mwuser(user_id) ON DELETE CASCADE' ),
313 array( 'addInterwikiType' ),
315 array( 'tsearchFixes' ),
319 protected function getOldGlobalUpdates() {
320 global $wgExtNewTables, $wgExtPGNewFields, $wgExtPGAlteredFields, $wgExtNewIndexes;
324 # Add missing extension tables
325 foreach ( $wgExtNewTables as $tableRecord ) {
327 'addTable', $tableRecord[0], $tableRecord[1], true
331 # Add missing extension fields
332 foreach ( $wgExtPGNewFields as $fieldRecord ) {
334 'addPgField', $fieldRecord[0], $fieldRecord[1],
339 # Change altered columns
340 foreach ( $wgExtPGAlteredFields as $fieldRecord ) {
342 'changeField', $fieldRecord[0], $fieldRecord[1],
347 # Add missing extension indexes
348 foreach ( $wgExtNewIndexes as $fieldRecord ) {
350 'addPgExtIndex', $fieldRecord[0], $fieldRecord[1],
358 protected function describeTable( $table ) {
360 SELECT attname, attnum FROM pg_namespace, pg_class, pg_attribute
361 WHERE pg_class.relnamespace = pg_namespace.oid
362 AND attrelid=pg_class.oid AND attnum > 0
363 AND relname=%s AND nspname=%s
365 $res = $this->db
->query( sprintf( $q,
366 $this->db
->addQuotes( $table ),
367 $this->db
->addQuotes( $this->db
->getCoreSchema() ) ) );
373 foreach ( $res as $r ) {
382 function describeIndex( $idx ) {
383 // first fetch the key (which is a list of columns ords) and
384 // the table the index applies to (an oid)
386 SELECT indkey, indrelid FROM pg_namespace, pg_class, pg_index
388 AND pg_class.relnamespace = pg_namespace.oid
390 AND indexrelid=pg_class.oid
392 $res = $this->db
->query(
395 $this->db
->addQuotes( $this->db
->getCoreSchema() ),
396 $this->db
->addQuotes( $idx )
402 if ( !( $r = $this->db
->fetchRow( $res ) ) ) {
407 $relid = intval( $r[1] );
408 $indkeys = explode( ' ', $indkey );
411 foreach ( $indkeys as $rid ) {
413 SELECT attname FROM pg_class, pg_attribute
414 WHERE attrelid=$relid
416 AND attrelid=pg_class.oid
418 $r2 = $this->db
->query( sprintf( $query, $rid ) );
422 if ( !( $row2 = $this->db
->fetchRow( $r2 ) ) ) {
425 $colnames[] = $row2[0];
431 function fkeyDeltype( $fkey ) {
433 SELECT confdeltype FROM pg_constraint, pg_namespace
434 WHERE connamespace=pg_namespace.oid
438 $r = $this->db
->query(
441 $this->db
->addQuotes( $this->db
->getCoreSchema() ),
442 $this->db
->addQuotes( $fkey )
445 if ( !( $row = $this->db
->fetchRow( $r ) ) ) {
451 function ruleDef( $table, $rule ) {
453 SELECT definition FROM pg_rules
454 WHERE schemaname = %s
458 $r = $this->db
->query(
461 $this->db
->addQuotes( $this->db
->getCoreSchema() ),
462 $this->db
->addQuotes( $table ),
463 $this->db
->addQuotes( $rule )
466 $row = $this->db
->fetchRow( $r );
474 protected function addSequence( $table, $pkey, $ns ) {
475 if ( !$this->db
->sequenceExists( $ns ) ) {
476 $this->output( "Creating sequence $ns\n" );
477 $this->db
->query( "CREATE SEQUENCE $ns" );
478 if( $pkey !== false ) {
479 $this->setDefault( $table, $pkey, '"nextval"(\'"' . $ns . '"\'::"regclass")' );
484 protected function renameSequence( $old, $new ) {
485 if ( $this->db
->sequenceExists( $new ) ) {
486 $this->output( "...sequence $new already exists.\n" );
489 if ( $this->db
->sequenceExists( $old ) ) {
490 $this->output( "Renaming sequence $old to $new\n" );
491 $this->db
->query( "ALTER SEQUENCE $old RENAME TO $new" );
495 protected function renameTable( $old, $new, $patch = false ) {
496 if ( $this->db
->tableExists( $old ) ) {
497 $this->output( "Renaming table $old to $new\n" );
498 $old = $this->db
->realTableName( $old, "quoted" );
499 $new = $this->db
->realTableName( $new, "quoted" );
500 $this->db
->query( "ALTER TABLE $old RENAME TO $new" );
501 if( $patch !== false ) {
502 $this->applyPatch( $patch );
507 protected function renameIndex( $table, $old, $new ) {
508 if ( $this->db
->indexExists( $table, $old ) ) {
509 $this->output( "Renaming index $old to $new\n" );
510 $this->db
->query( "ALTER INDEX $old RENAME TO $new" );
514 protected function addPgField( $table, $field, $type ) {
515 $fi = $this->db
->fieldInfo( $table, $field );
516 if ( !is_null( $fi ) ) {
517 $this->output( "...column '$table.$field' already exists\n" );
520 $this->output( "Adding column '$table.$field'\n" );
521 $this->db
->query( "ALTER TABLE $table ADD $field $type" );
525 protected function changeField( $table, $field, $newtype, $default ) {
526 $fi = $this->db
->fieldInfo( $table, $field );
527 if ( is_null( $fi ) ) {
528 $this->output( "...ERROR: expected column $table.$field to exist\n" );
532 if ( $fi->type() === $newtype )
533 $this->output( "...column '$table.$field' is already of type '$newtype'\n" );
535 $this->output( "Changing column type of '$table.$field' from '{$fi->type()}' to '$newtype'\n" );
536 $sql = "ALTER TABLE $table ALTER $field TYPE $newtype";
537 if ( strlen( $default ) ) {
539 if ( preg_match( '/DEFAULT (.+)/', $default, $res ) ) {
540 $sqldef = "ALTER TABLE $table ALTER $field SET DEFAULT $res[1]";
541 $this->db
->query( $sqldef );
542 $default = preg_replace( '/\s*DEFAULT .+/', '', $default );
544 $sql .= " USING $default";
546 $this->db
->query( $sql );
550 protected function setDefault( $table, $field, $default ) {
552 $info = $this->db
->fieldInfo( $table, $field );
553 if ( $info->defaultValue() !== $default ) {
554 $this->output( "Changing '$table.$field' default value\n" );
555 $this->db
->query( "ALTER TABLE $table ALTER $field SET DEFAULT " . $default );
559 protected function changeNullableField( $table, $field, $null) {
560 $fi = $this->db
->fieldInfo( $table, $field );
561 if ( is_null( $fi ) ) {
562 $this->output( "...ERROR: expected column $table.$field to exist\n" );
565 if ( $fi->isNullable() ) {
566 # # It's NULL - does it need to be NOT NULL?
567 if ( 'NOT NULL' === $null ) {
568 $this->output( "Changing '$table.$field' to not allow NULLs\n" );
569 $this->db
->query( "ALTER TABLE $table ALTER $field SET NOT NULL" );
571 $this->output( "...column '$table.$field' is already set as NULL\n" );
574 # # It's NOT NULL - does it need to be NULL?
575 if ( 'NULL' === $null ) {
576 $this->output( "Changing '$table.$field' to allow NULLs\n" );
577 $this->db
->query( "ALTER TABLE $table ALTER $field DROP NOT NULL" );
580 $this->output( "...column '$table.$field' is already set as NOT NULL\n" );
585 public function addPgIndex( $table, $index, $type ) {
586 if ( $this->db
->indexExists( $table, $index ) ) {
587 $this->output( "...index '$index' on table '$table' already exists\n" );
589 $this->output( "Creating index '$index' on table '$table' $type\n" );
590 $this->db
->query( "CREATE INDEX $index ON $table $type" );
594 public function addPgExtIndex( $table, $index, $type ) {
595 if ( $this->db
->indexExists( $table, $index ) ) {
596 $this->output( "...index '$index' on table '$table' already exists\n" );
598 $this->output( "Creating index '$index' on table '$table'\n" );
599 if ( preg_match( '/^\(/', $type ) ) {
600 $this->db
->query( "CREATE INDEX $index ON $table $type" );
602 $this->applyPatch( $type, true );
607 protected function changeFkeyDeferrable( $table, $field, $clause ) {
608 $fi = $this->db
->fieldInfo( $table, $field );
609 if ( is_null( $fi ) ) {
610 $this->output( "WARNING! Column '$table.$field' does not exist but it should! Please report this.\n" );
613 if ( $fi->is_deferred() && $fi->is_deferrable() ) {
616 $this->output( "Altering column '$table.$field' to be DEFERRABLE INITIALLY DEFERRED\n" );
617 $conname = $fi->conname();
618 if ( $fi->conname() ) {
619 $conclause = "CONSTRAINT \"$conname\"";
620 $command = "ALTER TABLE $table DROP CONSTRAINT $conname";
621 $this->db
->query( $command );
623 $this->output( "Column '$table.$field' does not have a foreign key constraint, will be added\n" );
626 $command = "ALTER TABLE $table ADD $conclause FOREIGN KEY ($field) REFERENCES $clause DEFERRABLE INITIALLY DEFERRED";
627 $this->db
->query( $command );
630 protected function convertArchive2() {
631 if ( $this->db
->tableExists( "archive2" ) ) {
632 $this->output( "Converting 'archive2' back to normal archive table\n" );
633 if ( $this->db
->ruleExists( 'archive', 'archive_insert' ) ) {
634 $this->output( "Dropping rule 'archive_insert'\n" );
635 $this->db
->query( 'DROP RULE archive_insert ON archive' );
637 if ( $this->db
->ruleExists( 'archive', 'archive_delete' ) ) {
638 $this->output( "Dropping rule 'archive_delete'\n" );
639 $this->db
->query( 'DROP RULE archive_delete ON archive' );
641 $this->applyPatch( 'patch-remove-archive2.sql' );
643 $this->output( "...obsolete table 'archive2' does not exist\n" );
647 protected function checkOiDeleted() {
648 if ( $this->db
->fieldInfo( 'oldimage', 'oi_deleted' )->type() !== 'smallint' ) {
649 $this->output( "Changing 'oldimage.oi_deleted' to type 'smallint'\n" );
650 $this->db
->query( "ALTER TABLE oldimage ALTER oi_deleted DROP DEFAULT" );
651 $this->db
->query( "ALTER TABLE oldimage ALTER oi_deleted TYPE SMALLINT USING (oi_deleted::smallint)" );
652 $this->db
->query( "ALTER TABLE oldimage ALTER oi_deleted SET DEFAULT 0" );
654 $this->output( "...column 'oldimage.oi_deleted' is already of type 'smallint'\n" );
658 protected function checkOiNameConstraint() {
659 if ( $this->db
->hasConstraint( "oldimage_oi_name_fkey_cascaded" ) ) {
660 $this->output( "...table 'oldimage' has correct cascading delete/update foreign key to image\n" );
662 if ( $this->db
->hasConstraint( "oldimage_oi_name_fkey" ) ) {
663 $this->db
->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey" );
665 if ( $this->db
->hasConstraint( "oldimage_oi_name_fkey_cascade" ) ) {
666 $this->db
->query( "ALTER TABLE oldimage DROP CONSTRAINT oldimage_oi_name_fkey_cascade" );
668 $this->output( "Making foreign key on table 'oldimage' (to image) a cascade delete/update\n" );
669 $this->db
->query( "ALTER TABLE oldimage ADD CONSTRAINT oldimage_oi_name_fkey_cascaded " .
670 "FOREIGN KEY (oi_name) REFERENCES image(img_name) ON DELETE CASCADE ON UPDATE CASCADE" );
674 protected function checkPageDeletedTrigger() {
675 if ( !$this->db
->triggerExists( 'page', 'page_deleted' ) ) {
676 $this->output( "Adding function and trigger 'page_deleted' to table 'page'\n" );
677 $this->applyPatch( 'patch-page_deleted.sql' );
679 $this->output( "...table 'page' has 'page_deleted' trigger\n" );
683 protected function dropIndex( $table, $index ) {
684 if ( $this->db
->indexExists( $table, $index ) ) {
685 $this->output( "Dropping obsolete index '$index'\n" );
686 $this->db
->query( "DROP INDEX \"". $index ."\"" );
690 protected function checkIndex( $index, $should_be, $good_def ) {
691 $pu = $this->db
->indexAttributes( $index );
692 if ( !empty( $pu ) && $pu != $should_be ) {
693 $this->output( "Dropping obsolete version of index '$index'\n" );
694 $this->db
->query( "DROP INDEX \"". $index ."\"" );
697 $this->output( "...no need to drop index '$index'\n" );
700 if ( empty( $pu ) ) {
701 $this->output( "Creating index '$index'\n" );
702 $this->db
->query( $good_def );
704 $this->output( "...index '$index' exists\n" );
708 protected function checkRevUserFkey() {
709 if ( $this->fkeyDeltype( 'revision_rev_user_fkey' ) == 'r' ) {
710 $this->output( "...constraint 'revision_rev_user_fkey' is ON DELETE RESTRICT\n" );
712 $this->output( "Changing constraint 'revision_rev_user_fkey' to ON DELETE RESTRICT\n" );
713 $this->applyPatch( 'patch-revision_rev_user_fkey.sql' );
717 protected function checkIwlPrefix() {
718 if ( $this->db
->indexExists( 'iwlinks', 'iwl_prefix' ) ) {
719 $this->output( "Replacing index 'iwl_prefix' with 'iwl_prefix_from_title'...\n" );
720 $this->applyPatch( 'patch-rename-iwl_prefix.sql' );
724 protected function addInterwikiType() {
725 $this->output( "Refreshing add_interwiki()...\n" );
726 $this->applyPatch( 'patch-add_interwiki.sql' );
729 protected function tsearchFixes() {
730 # Tweak the page_title tsearch2 trigger to filter out slashes
731 # This is create or replace, so harmless to call if not needed
732 $this->output( "Refreshing ts2_page_title()...\n" );
733 $this->applyPatch( 'patch-ts2pagetitle.sql' );
735 # If the server is 8.3 or higher, rewrite the tsearch2 triggers
736 # in case they have the old 'default' versions
737 # Gather version numbers in case we need them
738 if ( $this->db
->getServerVersion() >= 8.3 ) {
739 $this->output( "Rewriting tsearch2 triggers...\n" );
740 $this->applyPatch( 'patch-tsearch2funcs.sql' );